/* ═══════════════════════════════════════════════════════════════════════════
   OrthoTrack Project Page — Stylesheet v2
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* ETH Zürich official CD — Black & White dominant, colors as accents */
  --color-bg:         #ffffff;
  --color-bg-alt:     #ffffff;
  --color-text:       #1a1a1a;
  --color-text-muted: #6f6f6f;
  --color-accent:     #215caf;
  --color-accent-light: #4d7dbf;
  --color-accent-dark: #08407e;
  --color-green:      #4e9e70;  /* sage green – used for interactive sliders */
  --color-surface:    #ffffff;
  --color-border:     #e2e2e2;
  --color-hero-bg:    #1a1a1a;
  --color-hero-text:  #f1f1f1;
  --color-code-bg:    #1a1a1a;
  --color-success:    #627313;
  --color-keyframe:   #8e6713;
  --color-tracked:    #215caf;
  --color-orange:     #8e6713;
  --color-purple:     #a7117a;
  --eth-blue:         #215caf;
  --eth-blue-dark:    #08407e;
  --eth-blue-light:   #7a9dcf;
  --eth-blue-10:      #e9eff7;
  --eth-blue-20:      #d3deef;
  --eth-petrol:       #007894;
  --eth-green:        #627313;
  --eth-bronze:       #8e6713;
  --eth-red:          #b7352d;
  --eth-purpur:       #a7117a;
  --eth-gray:         #6f6f6f;
  --eth-gray-10:      #f1f1f1;
  --ot-ui-grad:       linear-gradient(135deg, #6f97d4 0%, #007894 62%, #627313 100%);
  --ot-ui-grad-soft:  linear-gradient(135deg, rgba(122, 157, 207, 0.24) 0%, rgba(0, 120, 148, 0.22) 56%, rgba(98, 115, 19, 0.17) 100%);
  --ot-slider-thumb-grad: linear-gradient(135deg, #7da8df 0%, #007894 58%, #627313 100%);
  --ot-slider-thumb-border: rgba(245, 251, 255, 0.92);
  --ot-slider-thumb-shadow: 0 3px 10px rgba(0, 24, 44, 0.35);
  --font-body:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:        'JetBrains Mono', 'Fira Code', monospace;
  --radius:           8px;
  --radius-lg:        16px;
  --shadow-sm:        0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:        0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:        0 8px 32px rgba(0,0,0,0.10);
  --transition:       0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width:  1200px;
  --container-narrow: 800px;
}

[data-theme="dark"] {
  --color-bg:         #0b1120;
  --color-bg-alt:     #131b2c;
  --color-text:       #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-accent:     #38bdf8;
  --color-accent-light: #7dd3fc;
  --color-accent-dark: #0284c7;
  --color-green:      #4ade80;
  --color-surface:    #1e293b;
  --color-border:     #334155;
  --color-code-bg:    #0f172a;
  --eth-gray-10:      #1e293b;
  --eth-blue-10:      rgba(56, 189, 248, 0.15); /* fixed for ds-feat-icon */
  --shadow-sm:        0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:        0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:        0 8px 32px rgba(0,0,0,0.5);
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-bottom: 0;
}

/* ── Loading feedback ───────────────────────────────────────────────────── */
.ot-global-loading {
  position: fixed;
  inset: 0;
  z-index: 4000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  background: rgba(10, 16, 26, 0.34);
  backdrop-filter: blur(1px);
}

.ot-global-loading.visible {
  opacity: 1;
  pointer-events: auto;
}

.ot-loading-content {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(160, 190, 225, 0.38);
  background: rgba(8, 14, 24, 0.92);
  color: #f3f8ff;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.ot-inline-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  background: rgba(7, 12, 18, 0.42);
  color: #eef4ff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  z-index: 12;
}

.ot-inline-loading.visible {
  opacity: 1;
}

.ot-loading-host {
  position: relative;
}

.ot-ios-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: rgba(255, 255, 255, 0.95);
  animation: otSpinnerRotate 0.72s linear infinite;
}

.ot-loading-label {
  line-height: 1;
}

.ot-loading-button::after {
  text-align: left;
  content: '';
  position: absolute;
  left: 10px;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: otSpinnerRotate 0.7s linear infinite;
  opacity: 0.95;
}

@keyframes otSpinnerRotate {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .ot-loading-content {
    font-size: 0.82rem;
    padding: 10px 14px;
  }
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-dark); }
img { max-width: 100%; height: auto; display: block; }
video { max-width: 100%; display: block; }

code {
  font-family: var(--font-mono);
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

/* ── Container ──────────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ── Sections ───────────────────────────────────────────────────────────── */
.section {
  padding: 96px 0;
}

#method,
#dataset,
#results,
#bibtex {
  content-visibility: auto;
  contain-intrinsic-size: 900px;
}

.section-alt {
  background: var(--color-bg-alt);
}

#results.section {
  padding-top: 44px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.subsection-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 64px;
  margin-bottom: 24px;
  text-align: center;
}

/* ── Navigation ─────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(14, 17, 23, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition), box-shadow var(--transition);
}

#navbar.scrolled {
  background: rgba(14, 17, 23, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0;
  font-weight: 800;
  font-size: 1.55rem;
  color: #fff !important;
  letter-spacing: -0.02em;
}

.nav-drone-letter {
  display: inline-block;
  position: relative;
}

.nav-drone-svg {
  display: inline-block;
  width: 1.5em;
  height: 1.5em;
  vertical-align: baseline;
  position: relative;
  top: 0.24em;
  margin-right: -0.04em;
}

.nav-ortho-rest {
  color: #fff;
}

.nav-track {
  background: linear-gradient(135deg, #7a9dcf 0%, #007894 50%, #627313 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-trail-right {
  position: absolute;
  left: 1.15em;
  top: 0.1em;
  width: 6em;
  height: 1.8em;
  z-index: -1;
  pointer-events: none;
}

.nav-drone-svg .prop {
  animation: propRotate1 0.8s linear infinite;
}

.nav-drone-svg .prop-ccw {
  animation: propRotate2 0.8s linear infinite;
  animation-direction: reverse;
}

.logo-svg {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent-light);
  border-radius: 1px;
}

/* ── Hero ───────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0a0a0a;
}

/* Video tile background */
.hero-video-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video-bg video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 1.5s ease;
}

.hero-video-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.75) 0%,
    rgba(10, 10, 10, 0.55) 30%,
    rgba(10, 10, 10, 0.55) 70%,
    rgba(10, 10, 10, 0.80) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 4;
  text-align: center;
  padding: 110px 24px 80px;
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 6px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 32px;
}

.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-logo {
  margin-bottom: 4px;
  filter: drop-shadow(0 4px 16px rgba(255,255,255,0.15));
}

.title-main {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.03em;
  line-height: 1.1;
  display: inline-flex;
  align-items: baseline;
  position: relative;
}

/* Drone-as-O letter styling */
.title-drone-letter {
  display: inline-flex;
  align-items: center;
  position: relative;
  vertical-align: baseline;
}

/* Motion trail on the right of drone → flowing behind rthoTrack */
.drone-trail-right {
  width: 6em;
  height: 2em;
  margin-left: -0.15em;
  margin-right: -5.8em;
  vertical-align: baseline;
  position: relative;
  top: 0.25em;
  z-index: -1;
  pointer-events: none;
}

.drone-o-svg {
  display: inline-block;
  width: 1.5em;
  height: 1.5em;
  vertical-align: baseline;
  position: relative;
  top: 0.24em;
  color: #fff;
  margin-right: -0.08em;
  margin-left: -0.02em;
}

.drone-o-svg .prop {
  animation: propRotate1 1.2s linear infinite;
}

.drone-o-svg .prop-ccw {
  animation: propRotate2 1.2s linear infinite;
  animation-direction: reverse;
}

.title-ortho-rest {
  color: #fff;
}

.title-track {
  display: inline-block;
  background: linear-gradient(135deg, var(--eth-blue-light) 0%, var(--eth-petrol) 50%, var(--eth-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter:
    drop-shadow(1px 0 0 #fff)
    drop-shadow(-1px 0 0 #fff)
    drop-shadow(0 1px 0 #fff)
    drop-shadow(0 -1px 0 #fff);
}

/* Branded "OrthoTrack" inline text */
.brand-o {
  background: linear-gradient(135deg, var(--eth-blue-light) 0%, var(--eth-petrol) 60%, var(--eth-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.brand-track {
  background: linear-gradient(135deg, var(--eth-blue-light) 0%, var(--eth-petrol) 50%, var(--eth-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.brand-drone {
  background: linear-gradient(135deg, var(--eth-blue) 0%, var(--eth-purpur) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.brand-moving {
  background: linear-gradient(135deg, var(--eth-purpur) 0%, var(--eth-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.title-sub {
  font-size: clamp(1.1rem, 2.8vw, 1.55rem);
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
  text-align: center;
  letter-spacing: 0.01em;
}

.hero-authors {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.9);
  font-size: 1.05rem;
  font-weight: 500;
}

.author-row {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-authors a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}

.hero-authors a:hover {
  color: #fff;
}

.hero-authors .sep {
  color: rgba(255,255,255,0.3);
}

.hero-affil {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}

.hero-affil .sep {
  color: rgba(255,255,255,0.2);
}

/* Institution logos — white by default, brighter on hover */
.hero-institutions {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 18px;
  margin-bottom: 40px;
}

.inst-logo {
  opacity: 1;
  transition: transform 0.3s;
  display: flex;
  align-items: center;
  position: relative;
}

.inst-logo sup {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.65rem;
  font-weight: 600;
  position: absolute;
  top: -8px;
  left: -10px;
}

.inst-logo::after {
  content: '';
  position: absolute;
  inset: -18px -22px;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: -1;
  pointer-events: none;
}

.inst-logo:hover {
  transform: scale(1.05);
}

.inst-logo:hover::after {
  opacity: 1;
}

.inst-logo img {
  height: auto;
  max-height: 26px;
  filter: none;
  transition: filter 0.3s;
}

/* TUM — original colors + blue glow on hover */
.inst-logo[title*="Munich"]:not(.inst-logo-mcml)::after {
  background: radial-gradient(ellipse, rgba(0, 101, 189, 0.55) 0%, transparent 70%);
}

/* ETH — force white always + glow on hover */
.inst-logo[title*="ETH"] img {
  filter: brightness(0) invert(1);
}
.inst-logo[title*="ETH"]::after {
  background: radial-gradient(ellipse, rgba(31, 78, 121, 0.55) 0%, transparent 70%);
}
.inst-logo[title*="ETH"]:hover img {
  filter: brightness(0) invert(1);
}

/* Cambridge — original colors + glow on hover */
.inst-logo-cambridge img {
  max-height: 24px;
}
.inst-logo-cambridge::after {
  background: radial-gradient(ellipse, rgba(163, 31, 52, 0.55) 0%, transparent 70%);
}

/* MCML — force white always + glow on hover */
.inst-logo-mcml img {
  max-height: 24px;
  filter: brightness(0) invert(1);
}
.inst-logo-mcml::after {
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.55) 0%, transparent 70%);
}
.inst-logo-mcml:hover img {
  filter: brightness(0) invert(1);
}

/* Microsoft — custom white-text logo asset + glow on hover */
.inst-logo-microsoft::after {
  background: radial-gradient(ellipse, rgba(0, 164, 239, 0.55) 0%, transparent 70%);
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.hero-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.btn-glass {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
}

.btn-glass:hover {
  background: rgba(255,255,255,0.18);
  color: #fff;
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.3);
}

/* ── Hero Highlights ────────────────────────────────────────────────────── */
.hero-highlights {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.hl {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hl-icon {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 4px;
}

.hl-val {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.hl-lbl {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-top: 2px;
}

.hl-sep {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.12);
}

/* ── Scroll Indicator ───────────────────────────────────────────────────── */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-line {
  width: 2px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -40px;
  width: 100%;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.3));
  animation: scrollLine 2s ease infinite;
}

/* ── Drone Logo Animations ──────────────────────────────────────────────── */
@keyframes droneHover {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

@keyframes propSpin {
  from { transform-origin: center; }
  to   { transform-origin: center; }
}

@keyframes propRotate1 { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes propRotate2 { from { transform: rotate(90deg); } to { transform: rotate(450deg); } }

@keyframes droneBob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-0.14em); }
}

@keyframes trailDash {
  to { stroke-dashoffset: 40; }
}

@keyframes trailFade {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}

.drone-logo-animated {
  animation: droneHover 3s ease-in-out infinite;
}

.drone-logo-animated .prop {
  animation: propRotate1 0.8s linear infinite;
}

.drone-logo-animated .prop-ccw {
  animation: propRotate2 0.8s linear infinite;
  animation-direction: reverse;
}

.drone-logo-animated .trail-path {
  stroke-dasharray: 8 6;
  animation: trailDash 1.2s linear infinite, trailFade 3s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { top: -40px; }
  100% { top: 40px; }
}

/* ── Teaser ─────────────────────────────────────────────────────────────── */
#teaser, #showcase {
  padding-top: 48px;
}

.teaser-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #141414;
}

.teaser-wrap video {
  width: 100%;
  display: block;
}

/* ── Video Showcase ─────────────────────────────────────────────────────── */
.showcase-groups {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 0;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.showcase-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.showcase-group-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.showcase-group-tabs {
  display: flex;
  gap: 8px;
}

.showcase-group-divider {
  width: 1px;
  height: 56px;
  background: var(--color-border);
  margin: 0 20px;
  align-self: flex-end;
  margin-bottom: 12px;
}

.showcase-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 28px;
  border: 2px solid var(--color-border);
  border-radius: 16px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1rem;
  font-weight: 600;
  min-width: 160px;
  position: relative;
  overflow: hidden;
}

.showcase-tab i {
  font-size: 1.2rem;
  margin-bottom: 2px;
  transition: transform 0.3s;
}

.showcase-tab-sub {
  font-size: 0.7rem;
  font-weight: 400;
  opacity: 0.6;
  letter-spacing: 0.02em;
}

.showcase-tab:hover {
  border-color: var(--eth-blue-light);
  background: var(--eth-blue-10);
  color: var(--color-text);
  transform: translateY(-2px);
}

.showcase-tab:hover i {
  transform: scale(1.15);
}

.showcase-tab.active {
  border-color: var(--eth-petrol);
  background: linear-gradient(135deg, rgba(0,120,148,0.08), rgba(98,115,19,0.06));
  color: var(--color-text);
  box-shadow: 0 4px 20px rgba(0,120,148,0.15);
}

.showcase-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 3px;
  background: linear-gradient(90deg, var(--eth-blue-light), var(--eth-petrol), var(--eth-green));
  border-radius: 3px 3px 0 0;
}

.showcase-tab.active .showcase-tab-sub {
  opacity: 0.8;
}

/* Video stage */
.showcase-stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #0a0a0a;
  aspect-ratio: 16 / 9;
}

.showcase-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.showcase-video.active {
  opacity: 1;
  pointer-events: auto;
}

/* Progress bar */
.showcase-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255,255,255,0.1);
}

.showcase-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--eth-blue-light), var(--eth-petrol), var(--eth-green));
  transition: width 0.15s linear;
  border-radius: 0 2px 2px 0;
}

/* Fullscreen button */
.showcase-fullscreen {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: none;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s, background 0.25s, transform 0.25s;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.showcase-stage:hover .showcase-fullscreen {
  opacity: 1;
}

.showcase-fullscreen:hover {
  background: rgba(0,0,0,0.7);
  transform: scale(1.1);
}

.teaser-caption {
  text-align: center;
  margin-top: 24px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

/* ── Abstract ───────────────────────────────────────────────────────────── */
.abstract-text {
  font-size: 1.1rem;
  line-height: 1.9;
  text-align: justify;
  color: var(--color-text);
}

/* ══════════════════════════════════════════════════════════════════════════
   METHOD: Interactive Pipeline
   ══════════════════════════════════════════════════════════════════════════ */

/* Pipeline overview figure */
.pipeline-figure {
  max-width: 900px;
  margin: 0 auto 40px;
}

.pipeline-fig-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
}

.pipeline-fig-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  background: #fff;
  padding: 20px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
}

/* Three reveal overlay blocks, covering the figure initially */
.pipeline-block {
  position: absolute;
  background: #fff;
  transition: opacity 0.8s ease;
  opacity: 1;
  pointer-events: none;
}

/* Keyframe Localization: top block (0% to ~38%) */
.pipeline-block-localization {
  top: 20px;
  left: 20px;
  right: 20px;
  height: 37.5%;
}

/* Quality Check: middle block (~38% to ~67%) */
.pipeline-block-quality {
  top: calc(20px + 37.5%);
  left: 20px;
  right: 20px;
  height: 29.5%;
}

/* Inter-Frame Tracking: bottom block (~67% to 100%) */
.pipeline-block-tracking {
  top: calc(20px + 67%);
  left: 20px;
  right: 20px;
  bottom: 20px;
}

/* When revealed, fade the white overlay away */
.pipeline-block.revealed {
  opacity: 0;
}

/* ── Scene Selector for Pipeline Demo ──────────────────────────────────── */
.scene-select-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.scene-select-wrap label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-2);
}

.scene-select-wrap label i {
  margin-right: 4px;
  color: var(--color-accent);
}

.scene-select-wrap select {
  padding: 8px 14px;
  border-radius: var(--radius);
  border: 2px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--transition);
  min-width: 200px;
}

.scene-select-wrap select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.scene-select-wrap select optgroup {
  font-weight: 700;
  font-style: normal;
}

.scene-loading {
  font-size: 0.85rem;
  color: var(--color-text-3);
}

/* ── Method Layout (sidebar + panels) ───────────────────────────────────── */
.method-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: start;
  position: relative;
}

.pipe-sidebar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  position: sticky;
  top: 80px;
  margin-left: 24px; /* room for loop-back arrow on the left */
}

/* Align step 1 + its connector with the bracketed steps */
.pipe-sidebar > .pipe-step {
  align-self: flex-start;
}

.pipe-sidebar > .pipe-conn {
  margin-left: 59px; /* center connector under 120px button */
}

/* ── Pipe Step Buttons ──────────────────────────────────────────────────── */
.pipe-step {
  --sc: var(--eth-petrol); /* default; overridden per-button inline */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  border: 2px solid color-mix(in srgb, var(--sc) 25%, transparent);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
  position: relative;
  width: 120px;
  /* Entrance animation */
  opacity: 0;
  animation: pipeSlideIn 0.45s ease forwards;
  animation-delay: calc(var(--step-i, 0) * 0.12s);
}

@keyframes pipeSlideIn {
  from { opacity: 0; transform: translateX(-18px) scale(0.92); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

.pipe-step:hover {
  border-color: var(--sc);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pipe-step.active {
  border-color: var(--sc);
  background: color-mix(in srgb, var(--sc) 6%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sc) 12%, transparent);
}

/* Icon: large, centered — uses step color */
.pipe-icon {
  font-size: 1.35rem;
  color: var(--sc);
  opacity: 0.6;
  display: block;
}

.pipe-step.active .pipe-icon {
  opacity: 1;
}

/* Number: small badge, top-right — uses step color */
.pipe-num {
  position: absolute;
  top: -7px;
  right: -7px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--sc);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1;
}

/* Label: short text below icon */
.pipe-lbl {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.15;
  text-align: center;
  white-space: normal;
  overflow-wrap: break-word;
  word-break: normal;
  hyphens: auto;
}

/* ── Vertical Connectors ────────────────────────────────────────────────── */
.pipe-conn {
  width: 2px;
  height: 14px;
  background: var(--color-text-muted);
  opacity: 0;
  animation: pipeConnFade 0.3s ease forwards;
  animation-delay: calc(var(--step-i, 0) * 0.12s + 0.2s);
}

@keyframes pipeConnFade {
  from { opacity: 0; }
  to   { opacity: 0.25; }
}

/* ── Loop Bracket (steps 2→5) ───────────────────────────────────────────── */
.pipe-loop-wrap {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}

.pipe-loop-steps {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* SVG loop-back arrow: wraps left of buttons */
.pipe-loop-arrow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  opacity: 0;
  animation: bracketFade 0.5s ease forwards;
  animation-delay: 0.7s;
}

.loop-path {
  stroke: var(--color-text-muted);
  stroke-width: 2;
  stroke-dasharray: 5 4;
  fill: none;
}

.loop-label {
  fill: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  stroke: var(--color-bg);
  stroke-width: 4px;
  paint-order: stroke;
}

/* Blink the Re-Localize loop arrow (path + label) when Stage 3's
   Quality Monitor reaches the "Keyframe Triggered" tick. Driven by JS
   adding/removing the .blink class on .pipe-loop-arrow. The arrow
   returns to its default muted color as soon as the class is removed. */
.pipe-loop-arrow.blink .loop-path {
  stroke: #e53935;
  animation: relocBlinkPath 0.6s ease-in-out infinite;
}
.pipe-loop-arrow.blink .loop-label {
  fill: #e53935;
  animation: relocBlinkLabel 0.6s ease-in-out infinite;
}
@keyframes relocBlinkPath {
  0%, 100% { stroke-opacity: 0.30; }
  50%      { stroke-opacity: 1.0; }
}
@keyframes relocBlinkLabel {
  0%, 100% { fill-opacity: 0.40; }
  50%      { fill-opacity: 1.0; }
}

@keyframes bracketFade {
  from { opacity: 0; }
  to   { opacity: 0.25; }
}

/* ── Per-step panel colors ──────────────────────────────────────────────── */
#panel-coarse  { --pc: var(--eth-blue-light); }
#panel-fine    { --pc: var(--eth-green); }
#panel-pnp     { --pc: var(--eth-purpur); }
#panel-tracking { --pc: var(--eth-petrol); }
#panel-trigger  { --pc: var(--eth-bronze); }

.m-panel .step-badge {
  background: var(--pc);
}

.m-panel .detail-list i {
  color: var(--pc);
}

/* ── Old classes (kept for compat) ──────────────────────────────────────── */
.pipe-arr { display: none; }
.pipe-arr-loop { display: none; }
.pipeline { display: none; }

/* ── Method Panels ──────────────────────────────────────────────────────── */
.method-panels {
  position: relative;
  min-width: 0; /* prevent grid blowout */
}

.m-panel {
  display: none;
}

.m-panel.active {
  display: block;
}

/* ── Interactive panel (full-width canvas) ──────────────────────────────── */
.m-panel-full {
  background: linear-gradient(180deg, rgba(17, 22, 30, 0.96) 0%, rgba(11, 15, 21, 0.98) 100%);
  border-radius: 14px;
  padding: 10px;
  box-shadow: 0 16px 42px rgba(2, 6, 12, 0.26);
  border: 1px solid rgba(88, 100, 116, 0.26);
}

.m-panel.active .m-panel-full {
  border-color: color-mix(in srgb, var(--pc) 45%, rgba(88, 100, 116, 0.4));
}

.stage-title {
  display: block;
  width: fit-content;
  margin: 0 auto 8px;
  padding: 5px 16px;
  border-radius: 999px;
  background: rgba(9, 13, 17, 0.50);
  border: 1px solid rgba(132, 147, 157, 0.22);
  color: rgba(229, 239, 245, 0.88);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.substep-bar {
  display: flex;
  gap: 8px;
  margin: 10px 4px 2px;
  flex-wrap: wrap;
  justify-content: center;
}

.substep-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(144, 178, 212, 0.2);
  background: rgba(12, 18, 26, 0.88);
  color: rgba(200, 220, 240, 0.72);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  font-family: inherit;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.substep-btn i {
  font-size: 0.72rem;
}

.substep-btn:hover {
  background: rgba(20, 32, 50, 0.92);
  border-color: rgba(152, 189, 232, 0.48);
  color: #e7f0fb;
}

.substep-btn.active {
  background: var(--ot-ui-grad);
  border-color: rgba(120, 170, 220, 0.66);
  color: #f3f8ff;
}

/* Stage-1 sub-steps: skipped (full-DOP / tile) when a sensor prior seeds pose */
.substep-btn:disabled,
.substep-btn.skipped {
  pointer-events: none;
  opacity: 0.45;
  cursor: not-allowed;
  background: rgba(8, 12, 18, 0.65);
  border-color: rgba(100, 120, 150, 0.15);
  color: rgba(160, 180, 200, 0.45);
}

.substep-btn:disabled:hover,
.substep-btn.skipped:hover {
  background: rgba(8, 12, 18, 0.65);
  border-color: rgba(100, 120, 150, 0.2);
  color: rgba(160, 180, 200, 0.5);
}

.substep-skip-tag {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.7em;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(200, 210, 220, 0.45);
}

#stage1-title .stage1-prior-hint {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.62em;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px 2px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(50, 78, 32, 0.55) 0%, rgba(32, 52, 64, 0.75) 100%);
  color: rgba(215, 235, 200, 0.95);
  border: 1px solid rgba(100, 140, 90, 0.4);
  vertical-align: middle;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
}

.m-panel-canvas-wrap {
  border-radius: 12px;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #131920 50%, #090d12 100%);
  position: relative;
}

.m-panel-canvas-wrap canvas {
  width: 100%;
  display: block;
  border-radius: 12px;
}

.m-panel-caption {
  margin-top: 10px;
  padding: 2px 4px;
}

.caption-log-entry {
  padding: 4px 0;
  transition: opacity 0.3s ease;
}

.caption-log-entry h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 3px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(229, 239, 245, 0.92);
}

.caption-log-entry p {
  color: rgba(176, 200, 218, 0.72);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

.m-panel-caption h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(229, 239, 245, 0.92);
}

.m-panel-caption p {
  color: rgba(176, 200, 218, 0.72);
  font-size: 0.88rem;
  line-height: 1.65;
  margin: 0;
}

.m-panel-caption p strong,
.m-panel-info p strong {
  color: rgba(229, 239, 245, 0.92);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.m-panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
  background: linear-gradient(180deg, rgba(17, 22, 30, 0.96) 0%, rgba(11, 15, 21, 0.98) 100%);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 16px 42px rgba(2, 6, 12, 0.26);
  border: 1px solid rgba(88, 100, 116, 0.26);
}

.m-panel.active .m-panel-grid {
  border-color: color-mix(in srgb, var(--pc) 45%, rgba(88, 100, 116, 0.4));
  border-width: 1px;
  border-style: solid;
}

.m-panel-img {
  border-radius: 12px;
  overflow: hidden;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #131920 50%, #090d12 100%);
}

.m-panel-img img {
  width: 100%;
  display: block;
  border-radius: 12px;
}

.m-panel-img canvas {
  width: 100%;
  display: block;
  border-radius: 12px;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #131920 50%, #090d12 100%);
}

.m-panel-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(229, 239, 245, 0.92);
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.m-panel-info p {
  color: rgba(176, 200, 218, 0.72);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: rgba(176, 200, 218, 0.72);
  line-height: 1.5;
}

.detail-list li i {
  color: var(--pc, var(--color-accent));
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.detail-list li strong {
  color: rgba(229, 239, 245, 0.92);
}

/* ══════════════════════════════════════════════════════════════════════════
   3D VIEWER
   ══════════════════════════════════════════════════════════════════════════ */

.viewer-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  background: #141414;
}

#three-canvas {
  width: 100%;
  height: 600px;
  display: block;
  cursor: grab;
}

#three-canvas:active {
  cursor: grabbing;
}

.viewer-controls {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 10;
}

.viewer-controls button {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(0,0,0,0.5);
  color: rgba(255,255,255,0.8);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}

.viewer-controls button:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.viewer-controls button.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.viewer-info {
  position: absolute;
  bottom: 16px;
  left: 16px;
  z-index: 10;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  color: rgba(255,255,255,0.8);
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  display: none;
}

.viewer-info.visible {
  display: block;
}

/* ══════════════════════════════════════════════════════════════════════════
   RESULTS
   ══════════════════════════════════════════════════════════════════════════ */

.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 12px;
  margin-bottom: 26px;
}

.metric-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 14px 10px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-card-sm {
  padding: 16px 12px;
}

.metric-value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.metric-card-sm .metric-value {
  font-size: 1.35rem;
}

.mu {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-left: 2px;
}

.metric-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-top: 4px;
  font-weight: 600;
}

.metric-icon {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 6px;
  color: var(--color-text-muted);
}

.metric-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  min-width: 22px;
  height: 16px;
  margin-bottom: 6px;
  border-radius: 3px;
}

.metric-flag {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.metric-flag-de {
  background: linear-gradient(
    to bottom,
    #151515 0%,
    #151515 33.333%,
    #c53739 33.333%,
    #c53739 66.666%,
    #f0c14b 66.666%,
    #f0c14b 100%
  );
}

.metric-flag-am {
  background: linear-gradient(
    to bottom,
    #D90012 0%,
    #D90012 33.333%,
    #0033A0 33.333%,
    #0033A0 66.666%,
    #F2A800 66.666%,
    #F2A800 100%
  );
}

.metric-flag-hk {
  background: #EE1C25;
}

/* Bauhinia flower - stylized 5-petal orchid using SVG data URI for accuracy */
.metric-flag-hk::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 18px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath fill='white' d='M50 20c-5 0-12 10-15 20-10 3-20 10-20 15 0 5 10 8 20 8 2 10 8 17 15 17s13-7 15-17c10 0 20-3 20-8 0-5-10-12-20-15-3-10-10-20-15-20zm0 8c2 0 6 5 8 12-5-2-11-2-16 0 2-7 6-12 8-12zm-12 18c3 0 6 1 9 2-1 3-2 6-2 10-4-3-7-7-7-10 0-1 0-2 0-2zm24 0c0 1 0 2 0 2 0 3-3 7-7 10 0-4-1-7-2-10 3-1 6-2 9-2zm-20 16c2 4 5 8 8 10-3 1-7 2-11 2 1-4 3-8 3-12zm16 0c0 4 2 8 3 12-4 0-8-1-11-2 3-2 6-6 8-10z'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;}

.metric-flag-cn {
  background: #EE1C25;
}

/* Five yellow stars: 1 large + 4 small arranged in arc */
.metric-flag-cn::before {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  top: 2px;
  left: 3px;
  background: #FFFF00;
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

/* Four smaller stars positioned in arc around large star, all pointing toward center of large star */
.metric-flag-cn::after {
  content: '';
  position: absolute;
  width: 3px;
  height: 3px;
  top: 2px;
  left: 12px;
  background: #FFFF00;
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  transform: rotate(25deg);
  box-shadow:
    3px 4px 0 #FFFF00,
    4px 9px 0 #FFFF00,
    1px 12px 0 #FFFF00;
}

.metric-flag-group {
  width: auto;
  min-width: auto;
  height: auto;
  margin-bottom: 6px;
  display: inline-flex;
  gap: 4px;
}

.metric-flag-group .metric-flag {
  width: 22px;
  min-width: 22px;
  height: 16px;
  margin-bottom: 0;
  border-radius: 3px;
}

/* Colorized card for the primary (OrthoTrack) MovingDrone metric */
.metric-card-ours {
  background: linear-gradient(135deg, rgba(122, 157, 207, 0.16) 0%, rgba(0, 120, 148, 0.12) 62%, rgba(98, 115, 19, 0.1) 100%);
  border-color: rgba(122, 157, 207, 0.4);
}
.metric-card-ours .metric-value {
  color: var(--color-accent-dark);
}
.metric-card-ours .metric-icon {
  color: var(--color-accent);
}

/* Sortable column headers */
th.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
th.sortable:hover {
  background: rgba(0, 0, 0, 0.16);
  color: inherit;
}
th.sortable::after {
  content: ' ↕';
  font-size: 0.62em;
  opacity: 0.3;
  vertical-align: middle;
  font-weight: 400;
}
th.sortable.sort-asc::after {
  content: ' ↑';
  opacity: 1;
  color: var(--color-accent);
}
th.sortable.sort-desc::after {
  content: ' ↓';
  opacity: 1;
  color: var(--color-accent);
}

/* ── Tables ─────────────────────────────────────────────────────────────── */
.table-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: center;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.res-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.res-table thead {
  background: var(--color-hero-bg);
  color: #fff;
}

.res-table th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}


.res-table th small {
  font-weight: 400;
  opacity: 0.7;
}

.res-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.res-table td.metric-best {
  font-weight: 700;
}

.res-table td.metric-second {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.res-table tbody tr:hover {
  background: var(--eth-blue-10);
}

.row-ours {
  background: var(--eth-blue-10) !important;
}

.row-ours td {
  border-bottom-color: var(--eth-blue-light);
}

.table-note {
  text-align: center;
  font-size: 0.85rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  font-weight: 500;
}

.metric-icon {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--color-text-muted);
}

/* Colorized card for the primary (OrthoTrack) MovingDrone metric */
.metric-card-ours {
  background: linear-gradient(135deg, rgba(122, 157, 207, 0.16) 0%, rgba(0, 120, 148, 0.12) 62%, rgba(98, 115, 19, 0.1) 100%);
  border-color: rgba(122, 157, 207, 0.4);
}
.metric-card-ours .metric-value {
  color: var(--color-accent-dark);
}
.metric-card-ours .metric-icon {
  color: var(--color-accent);
}

/* ── Sortable column headers ──────────────────────────────────────────────── */
th.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
th.sortable:hover {
  background: rgba(0, 0, 0, 0.16);
  color: inherit;
}
th.sortable::after {
  content: ' ↕';
  font-size: 0.62em;
  opacity: 0.3;
  vertical-align: middle;
  font-weight: 400;
}
th.sortable.sort-asc::after {
  content: ' ↑';
  opacity: 1;
  color: var(--color-accent);
}
th.sortable.sort-desc::after {
  content: ' ↓';
  opacity: 1;
  color: var(--color-accent);
}

/* ── Floating tooltip ─────────────────────────────────────────────────────── */
#tip-float {
  position: absolute;
  z-index: 9999;
  max-width: 320px;
  padding: 11px 13px;
  border: 1px solid transparent;
  border-radius: 12px;
  background:
    linear-gradient(rgba(10, 12, 18, 0.88), rgba(10, 12, 18, 0.88)) padding-box,
    linear-gradient(125deg, var(--eth-blue-light), var(--eth-petrol), var(--eth-green)) border-box;
  backdrop-filter: blur(12px) saturate(130%);
  color: #eef3fa;
  font-size: 0.78rem;
  line-height: 1.5;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px) scale(0.985);
  filter: blur(2px);
  transition:
    opacity 0.16s ease,
    transform 0.2s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.2s ease;
  white-space: normal;
  font-weight: 450;
  letter-spacing: 0.004em;
  text-align: left;
}
#tip-float.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

#tip-float .tip-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--eth-blue-light);
  margin-bottom: 6px;
}

#tip-float .tip-body {
  color: rgba(238, 243, 250, 0.95);
}

.results-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 12px;
  margin-bottom: 8px;
}

.results-subsection-title {
  margin-top: 8px;
  margin-bottom: 12px;
  font-size: 1.4rem;
}

.legend-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.dataset-tab-bar {
  display: flex;
  justify-content: flex-start;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.dataset-tab-btn {
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-accent);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.dataset-tab-btn:hover {
  border-color: var(--color-accent-light);
  color: var(--color-accent);
}

.dataset-tab-btn.active {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(142, 178, 214, 0.62);
  color: var(--color-text);
}

.dataset-panel {
  display: none;
}

.dataset-panel.active {
  display: block;
}

.dataset-panel.panel-enter {
  animation: datasetPanelIn 0.24s ease;
}

@keyframes datasetPanelIn {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dataset-caption {
  max-width: 920px;
  margin: 0 auto 18px;
  text-align: center;
  color: var(--color-text-muted);
}

.res-table-wide th,
.res-table-wide td {
  white-space: nowrap;
}

.method-cell {
  min-width: 220px;
}

.method-name {
  font-weight: 600;
  color: var(--color-text);
}

.method-ref {
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.align-badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-size: 0.76rem;
  font-weight: 700;
}

/* Type badges */
.tb {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tb[data-tip] {
  cursor: help;
}

.tb[data-tip]:focus-visible {
  outline: 2px solid color-mix(in srgb, currentColor 55%, white);
  outline-offset: 2px;
}

.tb-map  { background: rgba(33, 92, 175, 0.1); color: var(--eth-blue); }
.tb-prior { background: rgba(18, 109, 83, 0.12); color: #126d53; }
.tb-slam { background: rgba(98, 115, 19, 0.1); color: var(--eth-green); }
.tb-vo   { background: rgba(167, 17, 122, 0.1); color: var(--eth-purpur); }
.tb-fm   { background: rgba(142, 103, 19, 0.1); color: var(--eth-bronze); }

/* ── Tabs ───────────────────────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  justify-content: flex-start;
  justify-content: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: #fff;
  font-family: inherit;
  font-size: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-accent);
}

.tab-btn:hover {
  border-color: var(--color-accent-light);
  color: var(--color-accent);
}

.tab-btn.active {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(142, 178, 214, 0.62);
  color: var(--color-text);
}

/* Shared block alignment for consistent left/right edges across the page. */
.showcase-stage,
.teaser-caption,
.pipe-wrap,
.ds-features,
.modality-studio,
.metrics-row,
.results-legend,
.dataset-tab-bar,
.dataset-panel,
.tab-bar,
.tab-content,
.bibtex-wrap {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Per-sequence modality picker ─────────────────────────────────────────── */
.modality-seq-picker-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
}

.modality-seq-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted, #888);
  white-space: nowrap;
}

.modality-seq-select {
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 2px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition);
  max-width: 260px;
}

.modality-seq-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ══════════════════════════════════════════════════════════════════════════
   DATASET
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Feature Cards ──────────────────────────────────────────────────────── */
.ds-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  justify-content: center;
  gap: 12px;
  margin-bottom: 56px;
}

.ds-feat {
  text-align: center;
  padding: 16px 8px;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.ds-feat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.ds-feat-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  background: var(--eth-blue-10);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--color-accent);
}

.ds-feat-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.ds-feat-lbl {
  font-size: 0.66rem;
  color: var(--color-text-muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 500;
}

/* ── Section subtitle small ─────────────────────────────────────────────── */
.section-subtitle-sm {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

/* ── Modality Comparison Sliders ────────────────────────────────────────── */
.studio-view-toolbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin: -8px 0 14px;
}

.modality-studio {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "uav dop"
    "map mesh";
  gap: 16px;
  margin-bottom: 12px;
  align-items: stretch;
}

.modality-studio.is-list-mode {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "uav"
    "dop"
    "map"
    "mesh";
}

.modality-studio.is-list-mode .studio-resizer {
  display: none;
}

/* ── Narrow viewports: force list layout and hide the grid/list toggle ─── */
@media (max-width: 900px) {
  .modality-studio,
  .modality-studio:not(.is-list-mode) {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "uav"
      "dop"
      "map"
      "mesh";
  }
  .modality-studio .studio-resizer {
    display: none;
  }
  .studio-view-toolbar {
    display: none !important;
  }
}

.studio-pane {
  background: linear-gradient(180deg, rgba(17, 22, 30, 0.96) 0%, rgba(11, 15, 21, 0.98) 100%);
  border: 1px solid rgba(88, 100, 116, 0.26);
  border-radius: 14px;
  padding: 10px;
  box-shadow: 0 16px 42px rgba(2, 6, 12, 0.26);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.studio-pane .compare-slider,
.studio-pane .dataset-3d-wrap {
  border-radius: 12px;
}

.studio-pane--uav {
  grid-area: uav;
}

.studio-pane--map {
  grid-area: map;
}

.studio-pane--dop {
  grid-area: dop;
}

.studio-pane--mesh {
  grid-area: mesh;
}

.studio-pane--map #map-panel-overlay,
.studio-pane--mesh #map-panel-mesh3d {
  flex: 1;
  min-height: 0;
}

.studio-pane--uav .compare-slider,
.studio-pane--map .compare-slider,
.studio-pane--mesh .dataset-3d-wrap {
  min-height: 300px;
}

.studio-pane--dop .dop-timeline-wrap {
  max-width: none;
  margin: 0;
}

.studio-pane--dop .dop-timeline-display {
  min-height: 300px;
  border-color: rgba(88, 100, 116, 0.26);
}

.studio-pane--map .compare-slider,
.dataset-3d-wrap {
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #131920 50%, #090d12 100%);
}

.ds-modality-col {
  display: flex;
  flex-direction: column;
}

.uav-modality-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.uav-modality-seq {
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.studio-fullscreen-btn,
.compare-zoom-btn,
.compare-zoom-reset,
.dataset-3d-controls button,
.dataset-3d-help-btn,
.dataset-3d-modality-btn,
.map-side-btn {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(144, 178, 212, 0.2);
  border-radius: 50%;
  background: rgba(12, 18, 26, 0.88);
  color: #e7f0fb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease, opacity 0.18s ease, box-shadow 0.18s ease;
  position: relative;
  overflow: visible;
}

.studio-fullscreen-btn {
  width: 32px;
  height: 32px;
}

.compare-slider .studio-fullscreen-btn {
  position: static;
}

.map-2d-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 12;
  display: flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(162, 182, 152, 0.18);
  background: rgba(10, 14, 18, 0.74);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.map-2d-controls .studio-fullscreen-btn {
  width: 30px;
  height: 30px;
}

.map-2d-controls .studio-fullscreen-btn[data-tag]::after {
  top: calc(100% + 10px);
  left: 50%;
  right: auto;
  transform: translate(-50%, -6px);
}

.map-2d-controls .studio-fullscreen-btn[data-tag]:hover::after,
.map-2d-controls .studio-fullscreen-btn[data-tag]:focus-visible::after {
  transform: translate(-50%, 0);
}

/* DOP top toolbar: tooltips below (matches GeoData 2D .map-2d-controls) */
.dop-timeline-viewer-controls .studio-fullscreen-btn[data-tag]::after {
  top: calc(100% + 10px);
  left: 50%;
  right: auto;
  transform: translate(-50%, -6px);
}

.dop-timeline-viewer-controls .studio-fullscreen-btn[data-tag]:hover::after,
.dop-timeline-viewer-controls .studio-fullscreen-btn[data-tag]:focus-visible::after {
  transform: translate(-50%, 0);
}

/* Pipeline fullscreen button tooltip: anchor to the LEFT of the button so it
   doesn't get clipped by the right edge of the pipeline layout. Higher
   specificity (chained attr selector) so the generic `.studio-fullscreen-btn`
   tooltip rule doesn't override the position. */
.pipeline-fullscreen-btn[data-tag][data-tag]::after {
  top: 50%;
  left: auto;
  right: calc(100% + 10px);
  transform: translate(6px, -50%);
}

.pipeline-fullscreen-btn[data-tag][data-tag]:hover::after,
.pipeline-fullscreen-btn[data-tag][data-tag]:focus-visible::after {
  transform: translate(0, -50%);
}

.studio-fullscreen-btn:hover,
.compare-zoom-btn:hover,
.compare-zoom-reset:hover,
.dataset-3d-controls button:hover,
.dataset-3d-help-btn:hover,
.dataset-3d-modality-btn:hover,
.map-side-btn:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.48);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.34);
}

.studio-fullscreen-btn.active,
.dataset-3d-controls button.active,
.dataset-3d-modality-btn.active,
.dataset-3d-modality-btn[aria-pressed="true"],
.map-side-btn.active,
.map-side-btn[aria-pressed="true"] {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.66);
  color: #f3f8ff;
}

/* Studio fullscreen already covers the viewport: hide nested pane fullscreen toggles only
   (map Fill / FoV / KF reuse .studio-fullscreen-btn for styling but have no data-fs-target). */
#modality-studio.studio-is-fullscreen .studio-fullscreen-btn[data-fs-target],
#modality-studio.studio-is-fullscreen #dataset-3d-fullscreen {
  display: none !important;
}

.studio-fullscreen-btn[data-tag]::after,
.compare-zoom-btn[data-tag]::after,
.compare-zoom-reset[data-tag]::after,
.dataset-3d-controls button[data-tag]::after,
.dataset-3d-help-btn[data-tag]::after,
.dataset-3d-modality-btn[data-tag]::after,
.map-side-btn[data-tag]::after {
  content: attr(data-tag);
  position: absolute;
  top: 50%;
  left: calc(100% + 10px);
  transform: translate(-6px, -50%);
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.94);
  border: 1px solid rgba(142, 178, 214, 0.28);
  color: #e7f1ff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  transition: opacity 0.16s ease, transform 0.16s ease;
  z-index: 150;
}

.studio-fullscreen-btn[data-tag]:hover::after,
.studio-fullscreen-btn[data-tag]:focus-visible::after,
.compare-zoom-btn[data-tag]:hover::after,
.compare-zoom-btn[data-tag]:focus-visible::after,
.compare-zoom-reset[data-tag]:hover::after,
.compare-zoom-reset[data-tag]:focus-visible::after,
.dataset-3d-controls button[data-tag]:hover::after,
.dataset-3d-controls button[data-tag]:focus-visible::after,
.dataset-3d-help-btn[data-tag]:hover::after,
.dataset-3d-help-btn[data-tag]:focus-visible::after,
.dataset-3d-modality-btn[data-tag]:hover::after,
.dataset-3d-modality-btn[data-tag]:focus-visible::after,
.map-side-btn[data-tag]:hover::after,
.map-side-btn[data-tag]:focus-visible::after {
  opacity: 1;
  transform: translate(0, -50%);
}

.compare-slider > .studio-fullscreen-btn[data-tag]::after,
.dataset-3d-help-btn[data-tag]::after,
.map-side-modality-right .map-side-btn[data-tag]::after {
  left: auto;
  right: calc(100% + 10px);
  transform: translate(6px, -50%);
}

.dataset-3d-help-info .dataset-3d-help-btn[data-tag]::after {
  top: 50%;
  left: auto;
  right: calc(100% + 10px);
  transform: translate(6px, -50%);
  text-align: center;
  letter-spacing: 0.02em;
}

.dataset-3d-toolbar button[data-tag]::after {
  top: calc(100% + 10px);
  left: 50%;
  right: auto;
  transform: translate(-50%, -6px);
}

.compare-slider > .studio-fullscreen-btn[data-tag]:hover::after,
.compare-slider > .studio-fullscreen-btn[data-tag]:focus-visible::after,
.dataset-3d-help-btn[data-tag]:hover::after,
.dataset-3d-help-btn[data-tag]:focus-visible::after,
.map-side-modality-right .map-side-btn[data-tag]:hover::after,
.map-side-modality-right .map-side-btn[data-tag]:focus-visible::after {
  transform: translate(0, -50%);
}

.dataset-3d-help-info .dataset-3d-help-btn[data-tag]:hover::after,
.dataset-3d-help-info .dataset-3d-help-btn[data-tag]:focus-visible::after {
  transform: translate(0, -50%);
}

.dataset-3d-toolbar button[data-tag]:hover::after,
.dataset-3d-toolbar button[data-tag]:focus-visible::after {
  transform: translate(-50%, 0);
}

.compare-zoom-controls .compare-zoom-btn[data-tag]::after,
.compare-zoom-controls .compare-zoom-reset[data-tag]::after {
  top: calc(100% + 10px);
  left: 50%;
  right: auto;
  transform: translate(-50%, -6px);
}

.compare-zoom-controls .compare-zoom-btn[data-tag]:hover::after,
.compare-zoom-controls .compare-zoom-btn[data-tag]:focus-visible::after,
.compare-zoom-controls .compare-zoom-reset[data-tag]:hover::after,
.compare-zoom-controls .compare-zoom-reset[data-tag]:focus-visible::after {
  transform: translate(-50%, 0);
}

.viewer-embedded-title {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 13;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: calc(100% - 120px);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(9, 13, 17, 0.82);
  border: 1px solid rgba(132, 147, 157, 0.22);
  color: #edf1f6;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: none;
}

.viewer-embedded-title strong {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffffff;
}

.viewer-embedded-title span {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(229, 239, 245, 0.72);
  white-space: nowrap;
}

.viewer-embedded-title--mesh {
  top: 12px;
}

.compare-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: col-resize;
  box-shadow: var(--shadow-md);
  border: none;
  user-select: none;
}
.compare-slider.single-map { cursor: default; }
.compare-slider.is-zoomed { cursor: grab; }
.compare-slider.is-panning { cursor: grabbing; }

#compare-map {
  cursor: default;
}

#compare-map .compare-handle {
  cursor: col-resize;
}

/* Zoom inner wrapper — receives transform: scale(z) translate(x,y) */
.compare-zoom-inner {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
}

.compare-zoom-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  background: rgba(10, 14, 18, 0.78);
  border: 1px solid rgba(142, 178, 214, 0.2);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 999px;
  pointer-events: none;
  opacity: 0;
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: opacity 0.25s ease;
  z-index: 13;
}
.compare-zoom-badge.visible { opacity: 1; }

.compare-slider.has-fs-btn .compare-zoom-badge {
  top: 44px;
}

.compare-zoom-controls {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.74);
  border: 1px solid rgba(142, 178, 214, 0.2);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 13;
}

.compare-zoom-btn {
  font-size: 0.8rem;
}

.compare-zoom-btn.is-hidden {
  display: none;
}

.compare-zoom-reset {
  width: 0;
  height: 28px;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  overflow: hidden;
  margin-left: 0;
  transition: opacity 0.25s ease, background 0.15s ease, width 0.18s ease, margin-left 0.18s ease, border-color 0.15s ease;
}

.compare-zoom-reset.visible {
  width: 28px;
  opacity: 1;
  margin-left: 2px;
}

.compare-layer {
  position: absolute;
  inset: 0;
}

/* ── Pose overlay (SVG over compare-zoom) ──────────────────────── */
.map-pose-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  /* Crop footprint / frustum to map widget when poses project outside ortho extent */
  overflow: hidden;
}

.map-pose-path {
  fill: none;
  stroke: rgba(57, 208, 125, 0.99);
  stroke-width: 6.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(57, 208, 125, 0.85)) drop-shadow(0 0 10px rgba(57, 208, 125, 0.45));
}

.map-pose-path-secondary {
  stroke-width: 4.4;
  opacity: 0.92;
  filter: drop-shadow(0 0 2px rgba(8, 12, 20, 0.75));
}

.map-pose-path,
.map-pose-footprint-poly,
.map-pose-ghost-triangle,
.map-pose-current-triangle,
.map-pose-current-far-edge,
.map-pose-current-dot,
.map-pose-current-frustum-poly,
.map-pose-current-frustum-outline,
.map-pose-current-frustum-ray,
.map-pose-current-frustum-apex {
  vector-effect: non-scaling-stroke;
}

.map-pose-current-frustum-ray {
  stroke-linecap: round;
}

.map-pose-current-frustum-apex {
  stroke-linejoin: round;
}

.map-pose-footprint-poly {
  fill: rgba(255, 232, 90, 0.24);
  stroke: rgba(255, 244, 140, 0.98);
  stroke-width: 3.4;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 3px rgba(255, 236, 122, 0.6));
}

.map-pose-ghost-triangle {
  display: none;
}

.map-pose-current-triangle {
  fill: rgba(255, 232, 90, 0.98);
  stroke: rgba(255, 244, 140, 0.98);
  stroke-width: 2.8;
  stroke-linejoin: round;
}

.map-pose-current-far-edge {
  stroke: rgba(0, 0, 0, 0.95);
  stroke-width: 2.2;
  stroke-linecap: round;
  filter: none;
}

.map-pose-current-dot {
  fill: rgba(34, 211, 238, 0.98);
  stroke: rgba(255, 255, 255, 0.95);
  stroke-width: 2.8;
}

/* ── Global playbar ─────────────────────────────────────────────── */
.global-playbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1300;
  background: rgba(14, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 -10px 36px rgba(0, 0, 0, 0.28);
  transition: transform 0.36s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
}

.global-playbar.is-managed.is-hidden {
  transform: translateY(calc(100% + 12px));
  opacity: 0;
  pointer-events: none;
}

/* User-triggered collapse: slide down but keep collapse button visible */
.global-playbar.is-user-collapsed .global-playbar-inner,
.global-playbar.is-user-collapsed .global-methods-legend {
  display: none;
}
.global-playbar.is-user-collapsed {
  padding-top: 0;
}

.global-playbar-collapse {
  position: absolute;
  top: -22px;
  right: 16px;
  width: 44px;
  height: 22px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  background: inherit;
  color: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  line-height: 1;
  padding: 0;
  box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.18);
  transition: color 0.18s ease, background 0.18s ease;
}
.global-playbar-collapse:hover,
.global-playbar-collapse:focus-visible {
  color: #fff;
  outline: none;
}
.global-playbar-collapse i {
  transition: transform 0.24s ease;
}
.global-playbar.is-user-collapsed .global-playbar-collapse i {
  transform: rotate(180deg);
}

.global-playbar.is-in-fullscreen {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2600;
  transform: none;
  opacity: 1;
  pointer-events: auto;
}

.global-playbar-inner {
  max-width: min(1480px, calc(100vw - 20px));
  margin: 0 auto;
  padding: 7px 14px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  column-gap: 14px;
  row-gap: 8px;
  align-items: center;
}

.global-playbar-left {
  flex: 0 1 auto;
  min-width: 0;
}

/* Self-calibration note above qualitative studio (pill tag + data-tip like .tb badges). */
.studio-self-calib-banner {
  margin: 0.35rem 0 0.65rem;
  line-height: 1.35;
  text-align: center;
}

.studio-self-calib-label {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: help;
  user-select: none;
  color: var(--eth-red);
  background: color-mix(in srgb, var(--eth-red) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--eth-red) 28%, transparent);
}

.studio-self-calib-label:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--eth-red) 45%, white);
  outline-offset: 2px;
}

.global-playbar-main {
  flex: 1 1 420px;
  min-width: 0;
}

.global-playbar-right {
  flex: 0 1 auto;
  min-width: 0;
}

.global-playbar-left,
.global-playbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.global-studio-btn {
  flex: 0 0 auto;
}

.global-playbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.viewer-dop-year-popover {
  position: fixed;
  z-index: 1600;
  min-width: 168px;
  max-width: min(340px, calc(100vw - 16px));
  padding: 8px;
  border-radius: 10px;
  border: 1px solid rgba(132, 168, 205, 0.34);
  background: rgba(10, 14, 18, 0.96);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform-origin: top left;
}

.viewer-dop-year-popover[hidden] {
  display: none !important;
}

.viewer-dop-year-label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #dbe9f8;
}

.viewer-dop-year-popover.is-open {
  animation: viewerDopPopoverIn 150ms cubic-bezier(0.2, 0.76, 0.28, 1);
}

.viewer-dop-year-popover.is-left.is-open {
  animation: viewerDopPopoverInLeft 150ms cubic-bezier(0.2, 0.76, 0.28, 1);
}

.viewer-dop-year-tree {
  --viewer-dop-cols: 7;
  display: grid;
  grid-template-columns: repeat(var(--viewer-dop-cols), minmax(0, 1fr));
  gap: 4px;
}

.viewer-dop-year-btn {
  width: 100%;
  border: 1px solid rgba(132, 168, 205, 0.36);
  border-radius: 6px;
  padding: 4px 5px;
  background: rgba(12, 18, 23, 0.82);
  color: #e8f2ff;
  font-size: 0.66rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
  transform: translateY(0);
  opacity: 1;
}

.viewer-dop-year-btn:hover,
.viewer-dop-year-btn:focus-visible {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.56);
  transform: translateY(-1px);
  outline: none;
}

.viewer-dop-year-btn.is-active {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.7);
  color: #f3f8ff;
}

.viewer-dop-year-empty {
  grid-column: 1 / -1;
  padding: 6px;
  color: #cedac9;
  font-size: 0.68rem;
  line-height: 1.35;
}

@keyframes viewerDopPopoverIn {
  from {
    opacity: 0;
    transform: translate3d(6px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes viewerDopPopoverInLeft {
  from {
    opacity: 0;
    transform: translate3d(-6px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes viewerDopYearIn {
  from {
    opacity: 0;
    transform: translateY(3px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.global-seq-nav {
  display: grid;
  grid-template-columns: auto minmax(min(360px, 85vw), 1fr) auto;
  gap: 6px;
  align-items: center;
}

.global-playbar-main {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.global-playbar-controls-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.global-playbar-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Loading badge shown next to the transport controls while sequence assets
   are being fetched. Sits inside .global-playbar-controls-wrap. */
.global-playbar-loading {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px 4px 8px;
  margin-left: 4px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.55);
  border: 1px solid rgba(144, 178, 212, 0.22);
  color: rgba(231, 240, 251, 0.92);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
  white-space: nowrap;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
  pointer-events: none;
  user-select: none;
}

.global-playbar-loading[hidden] { display: none !important; }

.global-playbar-loading-spinner {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(168, 200, 232, 0.28);
  border-top-color: var(--eth-blue-light, #6ab7ff);
  animation: globalPlaybarSpin 0.85s linear infinite;
}

@keyframes globalPlaybarSpin {
  to { transform: rotate(360deg); }
}

@media (max-width: 700px) {
  .global-playbar-loading-text { display: none; }
  .global-playbar-loading { padding: 4px; }
}

.global-playbar-label {
  font-size: 0.63rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.62);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  line-height: 1;
}

.global-playbar-inline-label {
  letter-spacing: 0.06em;
}

.global-play-btn {
  width: 29px;
  height: 29px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--eth-blue-light) 0%, var(--eth-petrol) 58%, var(--eth-green) 100%);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.global-seq-step {
  width: 28px;
  height: 28px;
}

.global-play-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.global-play-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

.global-play-slider {
  width: 100%;
  --play-progress: 0%;
  appearance: none;
  -webkit-appearance: none;
  height: 16px;
  background: transparent;
}

.global-play-slider::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, #6f97d4 0%, #007894 58%, #627313 100%) 0 0 / var(--play-progress) 100% no-repeat,
    rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(142, 178, 214, 0.4);
}

.global-play-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -4px;
  border-radius: 50%;
  border: 2px solid var(--ot-slider-thumb-border);
  background: var(--ot-slider-thumb-grad);
  box-shadow: var(--ot-slider-thumb-shadow);
  transition: transform 0.15s ease, filter 0.15s ease;
}

.global-play-slider::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(142, 178, 214, 0.4);
}

.global-play-slider::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #6f97d4 0%, #007894 58%, #627313 100%);
}

.global-play-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--ot-slider-thumb-border);
  background: var(--ot-slider-thumb-grad);
  box-shadow: var(--ot-slider-thumb-shadow);
}

.global-play-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  white-space: nowrap;
  min-width: 0;
  font-variant-numeric: tabular-nums;
}

.global-play-frame {
  display: block;
  width: 100%;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 700;
  line-height: 1.2;
  text-align: right;
}

.global-play-time {
  display: block;
  width: 100%;
  font-size: 0.67rem;
  color: rgba(255, 255, 255, 0.58);
  line-height: 1.2;
  text-align: right;
}

/* ── Methods legend strip ──────────────────────────────────────────────── */
.global-methods-legend {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 14px 7px;
  max-width: min(1480px, calc(100vw - 20px));
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.055);
  flex-wrap: wrap;
}

.global-methods-legend[hidden] {
  display: none;
}

.global-methods-legend-label {
  font-size: 0.60rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.40);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.global-methods-legend-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.methods-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px 3px 6px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--chip-color, #8ea8ff) 38%, rgba(180, 196, 220, 0.22));
  background: color-mix(in srgb, var(--chip-color, #8ea8ff) 10%, rgba(12, 18, 32, 0.72));
  transition: border-color 0.22s ease, background 0.22s ease, opacity 0.22s ease, transform 0.16s ease;
  cursor: pointer;
  user-select: none;
}

.methods-legend-chip:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--chip-color, #8ea8ff) 64%, #d0dff5);
  background: color-mix(in srgb, var(--chip-color, #8ea8ff) 18%, rgba(14, 22, 42, 0.85));
}

.methods-legend-chip.is-active {
  border-color: color-mix(in srgb, var(--chip-color, #8ea8ff) 72%, #d0dff5);
  background: color-mix(in srgb, var(--chip-color, #8ea8ff) 20%, rgba(14, 22, 42, 0.85));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--chip-color, #8ea8ff) 28%, transparent),
              inset 0 0 8px color-mix(in srgb, var(--chip-color, #8ea8ff) 12%, transparent);
}

.methods-legend-chip.is-inactive {
  opacity: 0.38;
}

.methods-legend-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--chip-color, #8ea8ff);
  flex-shrink: 0;
  box-shadow: 0 0 5px color-mix(in srgb, var(--chip-color, #8ea8ff) 70%, transparent);
}

.methods-legend-chip.is-active .methods-legend-dot {
  box-shadow: 0 0 7px 1px color-mix(in srgb, var(--chip-color, #8ea8ff) 85%, transparent);
}

.methods-legend-name {
  font-size: 0.64rem;
  font-weight: 600;
  color: rgba(225, 235, 255, 0.88);
  line-height: 1;
  letter-spacing: 0.02em;
}

.methods-legend-chip.is-inactive .methods-legend-name {
  color: rgba(200, 215, 240, 0.50);
}

.global-seq-select,
.global-play-speed {
  width: 100%;
  min-width: 0;
  padding: 4px 9px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
  font: inherit;
  font-size: 0.78rem;
}

.global-seq-select {
  min-width: 220px;
}

.global-play-speed {
  min-width: 82px;
}

.global-seq-select:focus,
.global-play-speed:focus {
  outline: none;
  border-color: var(--eth-blue-light);
  background: rgba(255, 255, 255, 0.09);
}

.global-seq-select option,
.global-play-speed option {
  background: #1a1a1a;
  color: #f1f1f1;
}

/* Playbar sequence picker: avoid 260px modality cap so labels and the opened list use more width. */
.global-playbar .global-seq-select.modality-seq-select {
  max-width: min(560px, 58vw);
  min-width: 260px;
}

#modality-studio:fullscreen,
#modality-studio:-webkit-full-screen {
  position: relative;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  padding: 16px;
  --studio-pad: 16px;
  --studio-gap: 16px;
  --studio-gap-half: 8px;
  --studio-col-left: 50%;
  --studio-row-top: 50%;
  display: grid;
  grid-template-columns:
    minmax(320px, var(--studio-col-left))
    minmax(320px, calc(100% - var(--studio-col-left)));
  grid-template-rows:
    minmax(220px, var(--studio-row-top))
    minmax(220px, calc(100% - var(--studio-row-top)));
  grid-template-areas:
    "uav dop"
    "map mesh";
  gap: var(--studio-gap);
  align-items: stretch;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #11161c 56%, #090d12 100%);
}

body.studio-fallback-fullscreen {
  overflow: hidden;
}

body.studio-fallback-fullscreen #modality-studio {
  position: fixed;
  inset: 0;
  --studio-col-left: 50%;
  --studio-row-top: 50%;
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  padding: 16px;
  --studio-pad: 16px;
  --studio-gap: 16px;
  --studio-gap-half: 8px;
  z-index: 1200;
  display: grid;
  grid-template-columns:
    minmax(320px, var(--studio-col-left))
    minmax(320px, calc(100% - var(--studio-col-left)));
  grid-template-rows:
    minmax(220px, var(--studio-row-top))
    minmax(220px, calc(100% - var(--studio-row-top)));
  grid-template-areas:
    "uav dop"
    "map mesh";
  gap: var(--studio-gap);
  align-items: stretch;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #11161c 56%, #090d12 100%);
}

.studio-resizer {
  display: none;
  touch-action: none;
}

#modality-studio:fullscreen .studio-resizer,
#modality-studio:-webkit-full-screen .studio-resizer,
body.studio-fallback-fullscreen #modality-studio .studio-resizer {
  display: block;
  position: absolute;
  z-index: 35;
  border-radius: 999px;
  background: transparent;
  border: none;
  box-shadow: none;
}

.studio-resizer::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 36px;
  height: 8px;
  border-radius: 999px;
  transform: translate(-50%, -50%);
  background: rgba(32, 44, 58, 0.72);
  border: 1px solid rgba(142, 178, 214, 0.46);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.26);
  opacity: 0.82;
  transition: opacity 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.studio-resizer-x::before {
  width: 8px;
  height: 36px;
}

.studio-resizer:hover::before,
.studio-resizer:focus-visible::before {
  background: rgba(38, 56, 74, 0.82);
  border-color: rgba(168, 205, 238, 0.72);
  opacity: 1;
}

.studio-resizer-x {
  top: 18px;
  bottom: 18px;
  left: calc(var(--studio-pad) + ((100% - (var(--studio-pad) * 2)) * (var(--studio-col-left, 50%) / 100%)));
  width: 12px;
  transform: translateX(-6px);
  cursor: ew-resize;
}

.studio-resizer-y {
  left: 18px;
  right: 18px;
  top: calc(var(--studio-pad) + ((100% - (var(--studio-pad) * 2)) * (var(--studio-row-top, 50%) / 100%)));
  height: 12px;
  transform: translateY(-6px);
  cursor: ns-resize;
}

#modality-studio:fullscreen.ot-has-fullscreen-playbar,
#modality-studio:-webkit-full-screen.ot-has-fullscreen-playbar {
  padding-bottom: 92px;
}

body.studio-fallback-fullscreen #modality-studio.ot-has-fullscreen-playbar {
  padding-bottom: 92px;
}

#modality-studio:fullscreen .studio-pane,
#modality-studio:-webkit-full-screen .studio-pane {
  min-height: 0;
  height: 100%;
}

body.studio-fallback-fullscreen #modality-studio .studio-pane {
  min-height: 0;
  height: 100%;
}

#modality-studio:fullscreen .studio-pane--uav .compare-slider,
#modality-studio:fullscreen .studio-pane--map .compare-slider,
#modality-studio:fullscreen .studio-pane--mesh .dataset-3d-wrap,
#modality-studio:-webkit-full-screen .studio-pane--uav .compare-slider,
#modality-studio:-webkit-full-screen .studio-pane--map .compare-slider,
#modality-studio:-webkit-full-screen .studio-pane--mesh .dataset-3d-wrap,
#modality-studio:fullscreen .studio-pane--dop .dop-timeline-display,
#modality-studio:-webkit-full-screen .studio-pane--dop .dop-timeline-display {
  min-height: 0;
  height: 100%;
  aspect-ratio: auto;
}

body.studio-fallback-fullscreen #modality-studio .studio-pane--uav .compare-slider,
body.studio-fallback-fullscreen #modality-studio .studio-pane--map .compare-slider,
body.studio-fallback-fullscreen #modality-studio .studio-pane--mesh .dataset-3d-wrap,
body.studio-fallback-fullscreen #modality-studio .studio-pane--dop .dop-timeline-display {
  min-height: 0;
  height: 100%;
  aspect-ratio: auto;
}
.metric-card-ours {
  background: linear-gradient(135deg, rgba(122, 157, 207, 0.16) 0%, rgba(0, 120, 148, 0.12) 62%, rgba(98, 115, 19, 0.1) 100%);
  border-color: rgba(122, 157, 207, 0.4);
}

.res-table tbody tr:hover,
.row-ours {
  background: linear-gradient(135deg, rgba(122, 157, 207, 0.11) 0%, rgba(0, 120, 148, 0.1) 55%, rgba(98, 115, 19, 0.09) 100%) !important;
}

.row-ours td {
  border-bottom-color: rgba(122, 157, 207, 0.48);
}

.showcase-tab:hover,
.dataset-tab-btn:hover,
.tab-btn:hover,
.ds-feat:hover {
  border-color: rgba(122, 157, 207, 0.48);
  background: var(--ot-ui-grad-soft);
}

.showcase-tab:hover i,
.dataset-tab-btn:hover i,
.tab-btn:hover i {
  color: inherit;
}

th.sortable.sort-asc::after,
th.sortable.sort-desc::after {
  color: #a9c6ea;
}

.dataset-tab-btn[data-results-tab="movingdrone"].active {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(142, 178, 214, 0.62);
  color: var(--color-text);
}

.map-side-btn.active,
.map-side-btn[aria-pressed="true"] {
  background: var(--ot-ui-grad);
  border-color: rgba(166, 205, 244, 0.66);
  color: #f4f9ff;
}

.cmp-tab:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.45);
  color: #deebfb;
}

.cmp-tab.active {
  background: var(--ot-ui-grad);
  color: #eff7ff;
  border-color: rgba(165, 201, 236, 0.82);
}

.compare-layer img,
.compare-layer video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* UAV panel: fill the viewport to avoid letterbox gaps in side-by-side layout. */
#compare-uav {
  aspect-ratio: 16 / 9;
}

#compare-uav .compare-layer img,
#compare-uav .compare-layer video {
  object-fit: contain;
  background: #02060c;
}

/* 2D map viewer: fill the dominant dimension (cover), same as DOP.
   Pan via object-position lets users reveal the full geodata extent. */
#compare-map .compare-layer img {
  object-fit: cover;
  background: transparent;
}
/* Contain mode: show full image with letterboxing (classic view, no cropping). */
#compare-map.map-fit-contain .compare-layer img {
  object-fit: contain;
}

.map-osm-live {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: none;
  pointer-events: none;
}

.compare-slider.osm-live-mode .map-osm-live {
  pointer-events: auto;
}

.compare-slider.osm-live-mode .compare-layer,
.compare-slider.osm-live-mode .compare-handle {
  visibility: hidden;
  pointer-events: none;
}

.compare-layer-b {
  clip-path: inset(0 0 0 50%);
}

.compare-slider.single-map .compare-layer-b {
  clip-path: inset(0 0 0 0%) !important;
}

.compare-slider.single-map .compare-handle {
  display: none;
}

.compare-slider.map-labels-hidden .compare-label {
  display: none;
}

/* Tri-compare default split: RGB 50%, Depth 25%, Normals 25% */
.tri-compare .compare-layer-b {
  clip-path: inset(0 0 0 50%);
}
.tri-compare .compare-layer-c {
  clip-path: inset(0 0 0 75%);
}

.compare-label {
  position: absolute;
  bottom: 10px;
  padding: 4px 12px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.03em;
  pointer-events: none;
  width: max-content;
  white-space: nowrap;
  z-index: 12;
}

/* Standard 2-layer labels */
.compare-layer-a .compare-label {
  left: 10px;
}
.compare-layer-b .compare-label {
  right: 10px;
}

/* Tri-compare positioned labels */
.compare-label-left  { left: 10px; }
.compare-label-right { right: 10px; }
/* Mid label sits inside layer B — clips naturally with the layer's clip-path.
   Position is set via JS to the midpoint of the visible band. */
.compare-label-mid   {
  transition: opacity 0.15s ease;
  /* default — JS overrides left on every frame */
  left: 50%;
  transform: translateX(-50%);
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 44px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  cursor: col-resize;
  z-index: 11;
}

.compare-handle-line {
  flex: 1;
  width: 2px;
  background: rgba(255,255,255,0.7);
}

.compare-handle-grip {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ot-ui-grad);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  flex-shrink: 0;
}

#uav-handle-1 .compare-handle-grip,
#uav-handle-2 .compare-handle-grip {
  background: var(--ot-ui-grad);
}

.map-side-modality {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.74);
  border: 1px solid rgba(162, 182, 152, 0.18);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 62;
}

.map-side-modality-left {
  left: 10px;
}

.map-side-modality-right {
  right: 10px;
}

#uav-studio-pane:fullscreen,
#uav-studio-pane:-webkit-full-screen,
#map-panel-overlay:fullscreen,
#map-panel-overlay:-webkit-full-screen,
#map-panel-mesh3d:fullscreen,
#map-panel-mesh3d:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  border: none;
  border-radius: 0;
  padding: 0;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #11161c 56%, #090d12 100%);
}

#uav-studio-pane:fullscreen .compare-handle,
#uav-studio-pane:-webkit-full-screen .compare-handle {
  justify-content: center;
}

#uav-studio-pane:fullscreen .compare-handle-line,
#uav-studio-pane:-webkit-full-screen .compare-handle-line {
  flex: 0 0 18px;
  height: 18px;
  opacity: 0.55;
}

#uav-studio-pane:fullscreen .compare-slider,
#uav-studio-pane:-webkit-full-screen .compare-slider,
#map-panel-overlay:fullscreen .compare-slider,
#map-panel-overlay:-webkit-full-screen .compare-slider {
  width: 100%;
  max-width: 100%;
  border-radius: 0;
}

#uav-studio-pane:fullscreen .compare-label,
#uav-studio-pane:-webkit-full-screen .compare-label {
  bottom: 20px;
  z-index: 12;
}

#uav-studio-pane:fullscreen.ot-has-fullscreen-playbar .compare-label,
#uav-studio-pane:-webkit-full-screen.ot-has-fullscreen-playbar .compare-label {
  bottom: 86px;
  z-index: 12;
}

#map-panel-overlay:fullscreen,
#map-panel-overlay:-webkit-full-screen {
  display: block;
  position: relative;
  overflow: hidden;
}

/* Fullscreen map: maximize viewer area while leaving room for floating controls. */
#map-panel-overlay:fullscreen .compare-slider,
#map-panel-overlay:-webkit-full-screen .compare-slider {
  width: 100%;
  height: calc(100vh - 24px);
  max-height: calc(100vh - 24px);
  aspect-ratio: auto;
  margin: 0;
  border-radius: 12px;
}

#map-panel-overlay:fullscreen.ot-has-fullscreen-playbar .compare-slider,
#map-panel-overlay:-webkit-full-screen.ot-has-fullscreen-playbar .compare-slider {
  height: calc(100vh - 24px);
  max-height: calc(100vh - 24px);
}

#map-panel-overlay:fullscreen .map-side-modality,
#map-panel-overlay:-webkit-full-screen .map-side-modality {
  top: 50%;
}

#map-panel-overlay:fullscreen.ot-has-fullscreen-playbar .map-side-modality,
#map-panel-overlay:-webkit-full-screen.ot-has-fullscreen-playbar .map-side-modality {
  top: calc(50% - 44px);
}

#map-panel-overlay:fullscreen .compare-label,
#map-panel-overlay:-webkit-full-screen .compare-label {
  display: none;
}

#map-panel-overlay:fullscreen .cmp-tab,
#map-panel-overlay:-webkit-full-screen .cmp-tab {
  background: rgba(16, 26, 44, 0.92);
  border-color: rgba(134, 166, 207, 0.34);
  color: #e8f2ff;
}

#map-panel-overlay:fullscreen .cmp-tab:hover,
#map-panel-overlay:-webkit-full-screen .cmp-tab:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(158, 190, 230, 0.56);
}

#map-panel-overlay:fullscreen .cmp-tab.active,
#map-panel-overlay:-webkit-full-screen .cmp-tab.active {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.82);
  color: #eff7ff;
}

.compare-mode-tabs {
  display: flex;
  gap: 8px;
  margin: 0 0 10px;
  justify-content: center;
}

.map-mode-panel {
  display: none;
}

.map-mode-panel.active {
  display: block;
}

.dataset-3d-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: none;
}

.dataset-3d-wrap:fullscreen {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
  border-radius: 0;
  border: none;
}

.dataset-3d-wrap:fullscreen #dataset-lod-canvas {
  width: 100%;
  height: 100%;
}

#map-panel-mesh3d:fullscreen {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}

#map-panel-mesh3d:fullscreen .dataset-3d-wrap {
  flex: 1;
  min-height: 0;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
}

#map-panel-mesh3d:fullscreen.ot-has-fullscreen-playbar .dataset-3d-wrap {
  height: calc(100vh - 172px);
}

#map-panel-mesh3d:fullscreen #dataset-lod-canvas {
  width: 100%;
  height: 100%;
}

#map-panel-mesh3d:fullscreen .dataset-3d-modalities {
  position: absolute;
  top: 52px;
  left: 10px;
  width: 40px;
  margin: 0;
  padding: 4px;
  z-index: 120;
}

#dataset-lod-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#dataset-lod-canvas:active {
  cursor: grabbing;
}

.dataset-3d-hud {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  pointer-events: none;
}

.dataset-3d-controls {
  display: flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(162, 182, 152, 0.18);
  background: rgba(10, 14, 18, 0.74);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.dataset-3d-toolbar {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  gap: 8px;
  z-index: 110;
  max-width: min(360px, calc(100% - 52px));
}

.dataset-3d-help-info {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 110;
}

.dataset-3d-help-btn {
  width: 32px;
  height: 32px;
  font-size: 0.78rem;
  cursor: default;
}

.dataset-3d-modalities {
  display: flex;
  position: absolute;
  top: 52px;
  left: 10px;
  width: 40px;
  margin: 0;
  padding: 4px;
  flex-direction: column;
  gap: 4px;
  justify-content: flex-start;
  border-radius: 20px;
  background: rgba(10, 14, 18, 0.74);
  border: 1px solid rgba(162, 182, 152, 0.18);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 120;
  pointer-events: auto;
}

.dataset-3d-modality-btn {
  font-size: 0.82rem;
}

/* [hidden] alone can lose to the shared `display: inline-flex` rule above. */
.dataset-3d-modalities > button.dataset-3d-modality-btn[hidden] {
  display: none !important;
}

.dataset-3d-modality-btn.disabled,
.dataset-3d-modality-btn:disabled {
  background: rgba(22, 27, 31, 0.64);
  color: #7f8a7f;
  opacity: 0.6;
  filter: none;
  cursor: not-allowed;
  transform: none;
}

/* Separator between layer toggles and PiP cam buttons */
.dataset-3d-modality-sep {
  display: block;
  height: 1px;
  background: rgba(144, 178, 212, 0.22);
  margin: 2px 3px;
  border-radius: 1px;
  pointer-events: none;
}

/* Small CAM badge overlaid on PiP buttons */
.pip-cam-badge {
  position: absolute;
  bottom: 1px;
  right: 1px;
  font-size: 0.44rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1;
  padding: 1px 2px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.75);
  color: #a8d8ff;
  pointer-events: none;
}

/* UAV video LoD projection overlay canvas */
.uav-lod-overlay-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 6;
  display: block;
}

/* Keep UAV modality labels above LoD projection overlay. */
#compare-uav .compare-layer .compare-label {
  display: none;
}

#compare-uav .uav-label-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 12;
}

/* Each label-clip wrapper covers the full slider area. JS sets a clip-path
   on the wrapper that mirrors the corresponding layer's clip-path, so the
   label inside is cropped exactly like the Depth label is naturally cropped
   by its (clipped) parent layer-B. */
#compare-uav .uav-label-overlay .uav-label-clip {
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* Default: fully visible (no crop). JS will override clip-path/opacity. */
  clip-path: inset(0 0 0 0);
  -webkit-clip-path: inset(0 0 0 0);
}

#compare-uav .uav-label-overlay .compare-label {
  z-index: 12;
}

/* LoD overlay toggle buttons — positioned middle-left of compare-uav,
   styled like the GeoData 3D modality group */
.uav-lod-overlay-controls {
  position: absolute;
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
  z-index: 15;
  display: flex;
  width: 40px;
  padding: 4px;
  flex-direction: column;
  gap: 4px;
  justify-content: flex-start;
  border-radius: 20px;
  background: rgba(10, 14, 18, 0.74);
  border: 1px solid rgba(162, 182, 152, 0.18);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  pointer-events: auto;
  cursor: grab;
  user-select: none;
}

/* Separator line between buttons and slider */
.uav-lod-sep {
  display: block;
  height: 1px;
  background: rgba(144, 178, 212, 0.22);
  margin: 2px 3px;
  border-radius: 1px;
  pointer-events: none;
}

/* Slider wrapper: icon + vertical range input */
.uav-lod-slider-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 4px 0 2px;
  pointer-events: auto;
  cursor: default;
}

.uav-lod-slider-icon {
  font-size: 0.72rem;
  color: rgba(200, 218, 240, 0.7);
  pointer-events: none;
}

/* Vertical slider: height is the "width" of the track */
.uav-lod-opacity-slider {
  -webkit-appearance: none;
  appearance: none;
  writing-mode: vertical-lr;
  direction: rtl;
  width: 4px;
  height: 68px;
  background: transparent;
  outline: none;
  cursor: pointer;
  pointer-events: auto;
}

/* Track */
.uav-lod-opacity-slider::-webkit-slider-runnable-track {
  width: 4px;
  border-radius: 2px;
  background: rgba(144, 178, 212, 0.25);
}
.uav-lod-opacity-slider::-moz-range-track {
  width: 4px;
  border-radius: 2px;
  background: rgba(144, 178, 212, 0.25);
}

/* Thumb */
.uav-lod-opacity-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
  cursor: pointer;
  margin-left: -6px;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.uav-lod-opacity-slider::-webkit-slider-thumb:hover {
  filter: brightness(1.08);
  transform: scale(1.08);
}
.uav-lod-opacity-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.uav-lod-btn {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(144, 178, 212, 0.2);
  border-radius: 50%;
  background: rgba(12, 18, 26, 0.88);
  color: #e7f0fb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  position: relative;
  overflow: visible;
  font-size: 0.82rem;
}

.uav-lod-btn:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.48);
  transform: translateY(-1px);
}

.uav-lod-btn.active,
.uav-lod-btn[aria-pressed="true"] {
  background: var(--ot-ui-grad-active, rgba(44, 90, 160, 0.82));
  color: #fff;
  border-color: rgba(100, 180, 255, 0.6);
  box-shadow: 0 0 0 2px rgba(80, 160, 255, 0.25), 0 8px 22px rgba(0, 0, 0, 0.3);
}

.uav-lod-btn[data-tag]::after {
  content: attr(data-tag);
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, -6px);
  white-space: nowrap;
  background: rgba(8, 14, 26, 0.92);
  color: #d8e8f8;
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s, transform 0.18s;
  z-index: 99;
}

.uav-lod-btn[data-tag]:hover::after,
.uav-lod-btn[data-tag]:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* PiP drone-eye overlay */
.dataset-3d-pip {
  right: 10px;
  width: 220px;
  height: 140px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid rgba(144, 178, 212, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  background: #080e18;
  z-index: 115;
  pointer-events: none;
}

.dataset-3d-pip canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.dataset-3d-pip-label {
  position: absolute;
  bottom: 4px;
  left: 7px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: rgba(200, 220, 255, 0.65);
  pointer-events: none;
  text-transform: uppercase;
}

@media (max-width: 1180px) {
  .modality-studio {
    grid-template-columns: 1fr;
    grid-template-areas:
      "uav"
      "dop"
      "map"
      "mesh";
  }
}

.cmp-tab {
  padding: 5px 10px;
  font-size: 0.74rem;
  font-weight: 600;
  border: 1px solid rgba(140, 171, 208, 0.2);
  border-radius: 999px;
  background: rgba(12, 22, 38, 0.44);
  color: #eaf3ff;
  cursor: pointer;
  transition: all var(--transition);
}

.cmp-tab:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.45);
  color: #deebfb;
}

.cmp-tab.active {
  background: var(--ot-ui-grad);
  color: #eff7ff;
  border-color: rgba(165, 201, 236, 0.82);
}

/* ── DOP Timeline ───────────────────────────────────────────────────────── */
.dop-timeline-display {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 0;
  overflow: hidden;
  border: none;
  cursor: default;
}

.dop-timeline-display.is-pannable { cursor: grab; }
.dop-timeline-display.is-panning { cursor: grabbing; }

.dop-timeline-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  pointer-events: none;
  transition: transform 0.16s ease;
}

/* While the user is dragging the DOP image, the 0.16s transform tween
   on .dop-timeline-img would animate every pan delta, producing visible
   lag and brief gaps where the image appears to "disappear and come
   back" between frames. Disable the transition during the active drag. */
.dop-timeline-display.is-panning .dop-timeline-img {
  transition: none;
}

/* DOP timeline: full image (letterbox) vs fill viewport — mirrors #compare-map.map-fit-contain */
.dop-timeline-display.dop-fit-contain {
  background: #02060c;
}

.dop-timeline-display.dop-fit-contain .dop-timeline-img {
  object-fit: contain;
}

.dop-timeline-img.is-active {
  opacity: 1;
}

.dop-timeline-zoom-badge {
  position: absolute;
  top: 44px;
  right: 8px;
  z-index: 6;
  padding: 3px 9px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 999px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.dop-timeline-zoom-badge.visible { opacity: 1; }

.dop-timeline-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 7;
  padding: 10px 12px 8px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.62), rgba(0, 0, 0, 0.24), rgba(0, 0, 0, 0));
}

.dop-timeline-zoom {
  /* replaced by .dop-zoom-controls using .compare-zoom-controls */ display: none;
}

.dop-zoom-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.dop-zoom-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(0, 0, 0, 0.82);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.26);
}

.dop-zoom-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.62);
  outline-offset: 2px;
}

.dop-zoom-reset {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.dop-zoom-reset.visible {
  opacity: 1;
  pointer-events: auto;
}

.dop-timeline-play {
  position: absolute;
  left: 14px;
  bottom: 56px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.74);
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.dop-timeline-play i {
  font-size: 0.86rem;
}

.dop-timeline-play:hover {
  transform: translateY(-1px) scale(1.03);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(0, 0, 0, 0.82);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.28);
}

.dop-timeline-play:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.6);
  outline-offset: 2px;
}

.dop-timeline-quality {
  position: absolute;
  right: 14px;
  bottom: 56px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.74);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.dop-timeline-quality:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(0, 0, 0, 0.84);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.dop-timeline-quality.is-active {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.7);
  color: #f3f8ff;
}

.dop-timeline-quality:disabled {
  opacity: 1;
}

.dop-timeline-quality:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.62);
  outline-offset: 2px;
}

.dop-timeline-bar input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 16px;
  background: transparent;
  outline: none;
  cursor: pointer;
}
.dop-timeline-bar input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: rgba(144, 178, 212, 0.25);
}
.dop-timeline-bar input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: rgba(144, 178, 212, 0.25);
}

.dop-timeline-bar input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.dop-timeline-bar input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.08);
  filter: brightness(1.08);
}

.dop-timeline-bar input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
  cursor: pointer;
}

.dop-timeline-labels {
  display: flex;
  justify-content: space-between;
  padding: 6px 2px 0;
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 500;
  font-family: var(--font-mono);
}

.dop-timeline-labels span {
  flex: 0 0 auto;
  text-align: center;
}

.dop-timeline-labels span.active {
  color: #fff;
  font-weight: 700;
}

/* ── DOP pane – studio integration ─────────────────────────────────────── */
.studio-pane--dop {
  overflow: hidden;
}

/* Zoom controls placed top-left (matching UAV/2D pane position) */
.dop-zoom-controls {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 12;
}

/* Fill + fullscreen toolbar (top-right, same layout as GeoData 2D) */
.dop-timeline-viewer-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 12;
  display: flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(162, 182, 152, 0.18);
  background: rgba(10, 14, 18, 0.74);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.dop-timeline-viewer-controls .studio-fullscreen-btn {
  width: 30px;
  height: 30px;
  position: static;
}

/* Loading overlay – positioned inside dop-timeline-display */
#dop-timeline-loading {
  z-index: 20;
  border-radius: 0;
}

/* Playback controls group (play + speed + HQ) above the timeline bar */
.dop-playback-controls {
  position: absolute;
  left: 12px;
  bottom: 58px;
  z-index: 8;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Play button inside .dop-playback-controls is a flex child. */
.dop-playback-controls .dop-timeline-play {
  position: static;
}

/* Speed button group — small pill buttons matching the zoom-controls design */
.dop-speed-group {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.74);
  border: 1px solid rgba(142, 178, 214, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 26px rgba(4, 9, 18, 0.18);
}

.dop-speed-btn {
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid rgba(144, 178, 212, 0.2);
  border-radius: 50%;
  background: rgba(12, 18, 26, 0.88);
  color: rgba(223, 236, 252, 0.78);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  flex-shrink: 0;
}

.dop-speed-btn:hover {
  background: var(--ot-ui-grad-soft);
  border-color: rgba(152, 189, 232, 0.48);
  color: #f4f9ff;
  transform: translateY(-1px);
}

.dop-speed-btn.is-active {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.66);
  color: #f3f8ff;
}

/* HQ button – inherits compare-zoom-btn base; keep width auto for text */
.dop-timeline-quality.compare-zoom-btn {
  position: absolute;
  right: 12px;
  bottom: 58px;
  z-index: 8;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.dop-timeline-quality.compare-zoom-btn.is-active {
  background: var(--ot-ui-grad);
  border-color: rgba(170, 206, 240, 0.7);
  color: #f3f8ff;
}

/* Fullscreen support for DOP pane */
#dop-studio-pane:fullscreen,
#dop-studio-pane:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  border: none;
  border-radius: 0;
  padding: 0;
  background: radial-gradient(130% 130% at 70% 18%, #20262e 0%, #11161c 56%, #090d12 100%);
}

#dop-studio-pane:fullscreen .dop-timeline-display,
#dop-studio-pane:-webkit-full-screen .dop-timeline-display {
  border-radius: 0;
  width: 100%;
  height: 100%;
}

/* ── Sequences Carousel ────────────────────────────────────────────────── */
.ds-seq-carousel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  margin-bottom: 56px;
}

.ds-seq-toolbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  margin: -8px 0 14px;
}

.ds-seq-view {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
}

.ds-seq-view-btn {
  width: 34px;
  height: 30px;
  border: 0;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.ds-seq-view-btn + .ds-seq-view-btn {
  border-left: 1px solid var(--color-border);
}

.ds-seq-view-btn.is-active {
  background: color-mix(in srgb, var(--eth-blue) 16%, #fff);
  color: var(--eth-blue);
}

.ds-seq-view-btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--eth-blue) 60%, #fff);
  outline-offset: -2px;
}

.ds-seq-filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.ds-seq-filter select {
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  color: var(--color-text);
  outline: none;
  cursor: pointer;
}

.ds-seq-filter select:focus-visible {
  border-color: var(--eth-blue);
  box-shadow: 0 0 0 3px rgba(33, 92, 175, 0.14);
}

.ds-seq-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(236px, 26vw);
  gap: 14px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  padding: 4px 2px 14px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.ds-seq-track::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

.ds-seq-nav {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition), background var(--transition);
}

.ds-seq-nav:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  background: var(--color-surface);
}

.ds-seq-nav:disabled {
  opacity: 0.35;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.ds-seq-carousel.is-list-mode {
  grid-template-columns: minmax(0, 1fr);
}

.ds-seq-carousel.is-list-mode .ds-seq-nav {
  display: none;
}

.ds-seq-track.is-list-mode {
  grid-auto-flow: row;
  grid-auto-columns: unset;
  grid-template-columns: repeat(auto-fill, minmax(236px, 1fr));
  overflow: visible;
  scroll-snap-type: none;
  padding-right: 0;
}

.ds-seq-track.is-list-mode .ds-seq-card {
  scroll-snap-align: unset;
}

.ds-seq-card {
  scroll-snap-align: start;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: all var(--transition);
  min-width: 0;
  cursor: default;
}

.ds-seq-card.is-clickable {
  cursor: pointer;
}

.ds-seq-card.is-clickable:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.ds-seq-card.is-clickable:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--color-accent) 72%, #fff);
  outline-offset: 2px;
}

.ds-seq-card.is-modality-selected {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-accent) 26%, transparent), var(--shadow-md);
}

.ds-seq-card-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #05080d;
}

.ds-seq-card-img img,
.ds-seq-card-img video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ds-seq-card-img video {
  display: block;
}

.ds-seq-video-btn {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.68);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.ds-seq-video-btn:hover {
  transform: scale(1.06);
  background: rgba(0, 0, 0, 0.84);
  border-color: rgba(255, 255, 255, 0.48);
}

.ds-seq-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 10px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 999px;
  color: #fff;
}

.ds-seq-dl-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  text-decoration: none;
  backdrop-filter: blur(2px);
  transition: all var(--transition);
  z-index: 10;
}

.ds-seq-dl-btn:hover {
  background: rgba(255, 255, 255, 0.9);
  color: #000;
  transform: scale(1.1);
}

.ds-seq-name {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 3px 9px;
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  color: #fff;
  background: rgba(0, 0, 0, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(2px);
  max-width: calc(100% - 16px);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.ds-seq-tag.tag-urban { background: var(--eth-petrol); }
.ds-seq-tag.tag-suburban { background: var(--eth-bronze); }
.ds-seq-tag.tag-rural { background: var(--eth-green); }
.ds-seq-tag.tag-landmark { background: var(--eth-purpur); }
.ds-seq-tag.tag-historic { background: #6b4b2c; }
.ds-seq-tag.tag-industrial { background: #6b7280; }
.ds-seq-tag.tag-airport { background: #0f766e; }
.ds-seq-tag.tag-waterfront { background: #2563eb; }
.ds-seq-tag.tag-roadway { background: #7c3aed; }
.ds-seq-tag.tag-campus { background: #be5d00; }

.ds-seq-card-info {
  display: none;
}

.ds-seq-card-info h4 {
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.ds-seq-card-info p {
  font-size: 0.71rem;
  color: var(--color-text-muted);
  line-height: 1.25;
  text-transform: none;
}

@media (max-width: 980px) {
  .results-head {
    flex-direction: column;
    align-items: stretch;
  }

  .results-subtitle {
    text-align: center;
  }

  .metric-help {
    align-self: center;
  }

  .geodata-inline-features.mod-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ds-seq-track {
    grid-auto-columns: minmax(250px, 64vw);
  }
}

@media (max-width: 640px) {
  .metric-help-btn,
  .dataset-tab-btn,
  .tab-btn {
    width: 100%;
    justify-content: center;
  }

  .dataset-tab-bar,
  .tab-bar {
    align-items: stretch;
  }

  .method-cell {
    min-width: 180px;
  }

  .geodata-inline-features.mod-grid {
    grid-template-columns: 1fr;
  }

  .ds-seq-toolbar {
    justify-content: flex-start;
    margin-top: 0;
  }

  .ds-seq-view {
    margin-left: auto;
  }

  .ds-seq-carousel {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ds-seq-track {
    order: 1;
    grid-auto-columns: 80vw;
  }

  .ds-seq-nav {
    width: 40px;
    height: 40px;
  }

  .ds-seq-nav-prev,
  .ds-seq-nav-next {
    justify-self: end;
  }
}

/* Legacy gallery kept for backward-compat */
.seq-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.seq-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: all var(--transition);
}

.seq-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.seq-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.seq-card-info {
  padding: 14px 18px;
}

.seq-card-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.seq-card-info p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ── Modality Grid ──────────────────────────────────────────────────────── */
.mod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.mod-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.mod-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.mod-card i {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.mod-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.mod-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════════════════
   BIBTEX
   ══════════════════════════════════════════════════════════════════════════ */

.bib-wrap {
  position: relative;
  background: var(--color-code-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.bib-wrap pre {
  padding: 32px;
  overflow-x: auto;
}

.bib-wrap code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #94a3b8;
  background: none;
  padding: 0;
  line-height: 1.8;
}

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.1);
  border: none;
  color: rgba(255,255,255,0.5);
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.copy-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.copy-btn.copied {
  color: var(--color-success);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer {
  padding: 40px 0;
  /* Leave room for the fixed global playbar so the footer isn't covered. */
  padding-bottom: calc(40px + 72px);
  background: var(--color-hero-bg);
  text-align: center;
}

footer p {
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

/* ── Scroll Animations ──────────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Lightbox ───────────────────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  animation: fadeIn 0.2s ease;
  backdrop-filter: blur(4px);
}

.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: var(--radius);
  box-shadow: 0 16px 64px rgba(0,0,0,0.4);
}

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .ds-features {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .modality-studio {
    grid-template-columns: 1fr;
    grid-template-areas:
      "uav"
      "map"
      "mesh";
    gap: 12px;
  }
  .global-playbar-inner {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px 12px 10px;
  }

  .global-methods-legend {
    padding: 4px 12px 8px;
    gap: 7px;
  }

  .global-methods-legend-chips {
    gap: 5px;
  }

  .methods-legend-chip {
    padding: 3px 7px 3px 5px;
  }

  .methods-legend-name {
    font-size: 0.60rem;
  }

  .global-playbar-left,
  .global-playbar-right {
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .global-playbar-right {
    justify-content: flex-end;
  }

  .global-seq-nav {
    flex: 1;
  }

  .global-playbar-label {
    min-width: 64px;
  }

  .global-playbar-main {
    grid-template-columns: auto 1fr;
    gap: 8px;
  }

  .global-playbar-controls-wrap {
    gap: 2px;
  }

  .global-play-meta {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    min-width: 0;
  }
  .m-panel-grid {
    grid-template-columns: 1fr;
  }
  .method-layout {
    grid-template-columns: 1fr;
  }
  .pipe-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    position: static;
  }
  .pipe-conn { display: none; }
  .pipe-loop-wrap {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }
  .pipe-loop-steps {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }
  .pipe-bracket { display: none; }
  .pipe-loop-arrow { display: none; }
  .pipe-sidebar { margin-left: 0; }

  .section { padding: 64px 0; }
  .section-title { font-size: 2rem; }
  .nav-links { display: none; }

  .pipe-step {
    justify-content: center;
  }

  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }

  #three-canvas {
    height: 400px;
  }

  .hero-highlights {
    gap: 16px;
  }

  .hl-sep {
    display: none;
  }

  .hero-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

}

@media (max-width: 480px) {
  .global-playbar-main {
    grid-template-areas:
      "uav"
      "map"
      "mesh";
    grid-template-columns: 1fr;
  }

  .global-playbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .global-playbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .studio-pane--uav .compare-slider,
  .studio-pane--map .compare-slider,
  .studio-pane--mesh .dataset-3d-wrap {
    min-height: 0;
  }

  .dataset-3d-toolbar {
    top: 8px;
    right: 8px;
    gap: 6px;
    max-width: calc(100% - 48px);
  }

  .dataset-3d-modalities {
    top: 50px;
    left: 8px;
  }

  .compare-modality-tabs {
    max-width: calc(100% - 16px);
    bottom: 8px;
  }

  .dataset-3d-help-info {
    right: 8px;
    bottom: 8px;
  }

  .viewer-embedded-title {
    max-width: calc(100% - 108px);
    padding: 5px 10px;
    gap: 6px;
  }

  .viewer-embedded-title span {
    display: none;
  }

  .global-playbar-controls {
    justify-content: center;
  }

  .global-playbar-controls-wrap {
    align-items: center;
  }

  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .metrics-row {
    grid-template-columns: 1fr;
  }

  .hero-highlights {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .hl-sep {
    display: none;
  }
}

/* ── Pose trajectory thickness slider ──────────────────────────────────────── */

/* UAV pane fullscreen button: override position:static so it sits top-right */
#compare-uav > .studio-fullscreen-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 14;
}

/* UAV pane: subtle notice when RGB falls back to a still image (MP4 missing / failed). */
.uav-video-fallback-hint {
  position: absolute;
  right: 8px;
  top: 74px;
  z-index: 14;
  display: none;
  align-items: center;
  gap: 6px;
  max-width: 11.5rem;
  padding: 5px 9px 5px 7px;
  border-radius: 8px;
  background: rgba(10, 14, 18, 0.82);
  border: 1px solid rgba(214, 168, 96, 0.35);
  color: rgba(255, 236, 210, 0.95);
  font-size: 0.66rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  box-shadow: 0 6px 18px rgba(4, 9, 18, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  pointer-events: none;
  text-align: left;
}
.uav-video-fallback-hint.uav-video-fallback-hint--visible {
  display: flex;
}
.uav-video-fallback-hint__icon {
  flex-shrink: 0;
  font-size: 0.75rem;
  color: rgba(255, 206, 140, 0.88);
  opacity: 0.92;
}
.uav-video-fallback-hint__text {
  flex: 1;
  min-width: 0;
}

/* Thickness control: draggable pill anchored near bottom-center of the viewer */
.map-thickness-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 2px 0;
  border-radius: 999px;
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  flex-shrink: 0;
  opacity: 1;
  pointer-events: all;
}
.map-thickness-ctrl.is-dragging {
  opacity: 0.96;
}
/* grip handle icon */
.map-thickness-icon {
  color: rgba(255, 255, 255, 0.40);
  font-size: 10px;
  pointer-events: none;
  line-height: 1;
  flex-shrink: 0;
}
.map-thickness-label {
  color: rgba(232, 242, 255, 0.82);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  line-height: 1;
  flex-shrink: 0;
}
.pose-thickness-input {
  -webkit-appearance: none;
  appearance: none;
  width: 104px;
  height: 16px;
  background: transparent;
  outline: none;
  cursor: pointer;
  flex-shrink: 0;
  /* prevent drag events from interfering with slider */
  pointer-events: auto;
}
.pose-thickness-input::-webkit-slider-runnable-track {
  width: 104px;
  height: 6px;
  border-radius: 999px;
  background: rgba(144, 178, 212, 0.25);
}
.pose-thickness-input::-moz-range-track {
  width: 104px;
  height: 6px;
  border-radius: 999px;
  background: rgba(144, 178, 212, 0.25);
}
.pose-thickness-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  cursor: pointer;
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
  transition: transform 0.15s ease, filter 0.15s ease;
}
.pose-thickness-input::-webkit-slider-thumb:hover {
  transform: scale(1.08);
  filter: brightness(1.08);
}
.pose-thickness-input::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ot-slider-thumb-grad);
  cursor: pointer;
  border: 2px solid var(--ot-slider-thumb-border);
  box-shadow: var(--ot-slider-thumb-shadow);
}

.global-play-slider:focus-visible,
.dop-timeline-bar input[type="range"]:focus-visible,
.pose-thickness-input:focus-visible,
.uav-lod-opacity-slider:focus-visible {
  outline: 2px solid rgba(122, 157, 207, 0.7);
  outline-offset: 3px;
}

/* ────────────────────────────────────────────────────────────────
   Floating per-method tracking-error panel (live TE / RE).
   Rendered when the trajectory methods legend has at least one
   non-GT method selected. Draggable via its header; default
   anchored to the bottom-right of the viewport.
   ──────────────────────────────────────────────────────────────── */
.methods-live-error {
  position: fixed;
  right: 22px;
  /* Sit comfortably above the fixed global playbar (~60px tall). */
  bottom: 108px;
  z-index: 9500;
  padding: 0;
  border-radius: 10px;
  background: rgba(10, 16, 28, 0.82);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border: 1px solid rgba(180, 196, 220, 0.22);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4),
              0 2px 6px rgba(0, 0, 0, 0.28),
              inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  color: rgba(225, 235, 255, 0.92);
  font-family: 'Inter', system-ui, sans-serif;
  user-select: none;
  touch-action: none;
}
.methods-live-error[hidden] { display: none !important; }

.methods-live-error.is-dragging {
  cursor: grabbing;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5),
              0 3px 8px rgba(0, 0, 0, 0.32),
              inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.methods-live-error-header {
  padding: 5px 10px 4px;
  border-bottom: 1px solid rgba(180, 196, 220, 0.14);
  cursor: grab;
}
.methods-live-error.is-dragging .methods-live-error-header { cursor: grabbing; }

.methods-live-error-title {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(200, 215, 238, 0.85);
}

.methods-live-error-table {
  display: grid;
  grid-template-columns: 1fr auto auto;
  column-gap: 14px;
  row-gap: 2px;
  padding: 6px 10px 8px;
  max-height: 40vh;
  overflow-y: auto;
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 0.7rem;
}

.methods-live-error-thead {
  display: contents;
}
.methods-live-error-th {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(150, 170, 200, 0.75);
  padding: 2px 0 4px;
  border-bottom: 1px solid rgba(180, 196, 220, 0.14);
}
.methods-live-error-th-metric {
  text-align: right;
  justify-self: end;
}
.methods-live-error-th small {
  font-size: 0.52rem;
  font-weight: 500;
  margin-left: 2px;
  opacity: 0.7;
  text-transform: none;
  letter-spacing: 0;
}

.methods-live-error-body {
  display: contents;
}

.methods-live-error-row {
  display: contents;
}

.methods-live-error-row-name {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 2px 0;
}
.methods-live-error-row-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--chip-color, #8ea8ff);
  box-shadow: 0 0 5px color-mix(in srgb, var(--chip-color, #8ea8ff) 75%, transparent);
  flex-shrink: 0;
}
.methods-live-error-row-label {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(228, 238, 255, 0.94);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.methods-live-error-row-metric-value {
  text-align: right;
  justify-self: end;
  padding: 2px 0;
  font-weight: 600;
  color: rgba(240, 248, 255, 0.96);
  font-variant-numeric: tabular-nums;
}

.methods-live-error-empty {
  grid-column: 1 / -1;
  font-size: 0.68rem;
  color: rgba(180, 195, 220, 0.6);
  font-style: italic;
  padding: 4px 0;
  text-align: center;
  font-family: 'Inter', system-ui, sans-serif;
}

@media (max-width: 640px) {
  .methods-live-error {
    right: 12px;
    bottom: 96px;
  }
}

/* ─────────────────────────────────────────────────────────────────────────
   PIPELINE FULLSCREEN BUTTON + DARK-MODE STAGE BUTTONS
   ───────────────────────────────────────────────────────────────────────── */

/* The fullscreen button is absolutely-positioned inside the pipeline layout.
   Reuses the base `.studio-fullscreen-btn` look from the viewer panes. */
.pipeline-fullscreen-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 20;
}

/* ── Native browser fullscreen styling ───────────────────────────────── */
#pipeline-method-layout:fullscreen,
#pipeline-method-layout:-webkit-full-screen,
body.pipeline-fallback-fullscreen #pipeline-method-layout {
  background: #0b1220;
  color: rgba(235, 243, 255, 0.95);
  width: 100vw;
  height: 100vh;
  padding: 48px 36px 36px;
  overflow: auto;
  gap: 36px;
}

/* Body fallback: hide scroll + make layout fill viewport via fixed positioning. */
body.pipeline-fallback-fullscreen {
  overflow: hidden;
}
body.pipeline-fallback-fullscreen #pipeline-method-layout {
  position: fixed;
  inset: 0;
  z-index: 2500;
}

/* Dark-mode stage buttons when the pipeline layout is fullscreen. */
#pipeline-method-layout:fullscreen .pipe-step,
#pipeline-method-layout:-webkit-full-screen .pipe-step,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-step {
  background: rgba(20, 28, 42, 0.85);
  border-color: color-mix(in srgb, var(--sc) 45%, rgba(200, 215, 235, 0.15));
  color: rgba(235, 243, 255, 0.94);
}
#pipeline-method-layout:fullscreen .pipe-step:hover,
#pipeline-method-layout:-webkit-full-screen .pipe-step:hover,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-step:hover {
  background: rgba(30, 42, 60, 0.95);
  border-color: var(--sc);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--sc) 25%, rgba(0, 0, 0, 0.4));
}
#pipeline-method-layout:fullscreen .pipe-step.active,
#pipeline-method-layout:-webkit-full-screen .pipe-step.active,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-step.active {
  background: color-mix(in srgb, var(--sc) 22%, rgba(20, 28, 42, 0.95));
  border-color: var(--sc);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sc) 30%, transparent),
              0 8px 22px rgba(0, 0, 0, 0.45);
}

#pipeline-method-layout:fullscreen .pipe-lbl,
#pipeline-method-layout:-webkit-full-screen .pipe-lbl,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-lbl {
  color: rgba(235, 243, 255, 0.94);
}
#pipeline-method-layout:fullscreen .pipe-icon,
#pipeline-method-layout:-webkit-full-screen .pipe-icon,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-icon {
  opacity: 0.85;
}
#pipeline-method-layout:fullscreen .pipe-step.active .pipe-icon,
#pipeline-method-layout:-webkit-full-screen .pipe-step.active .pipe-icon,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-step.active .pipe-icon {
  opacity: 1;
}

/* Connectors & loop arrow legible on dark bg. */
#pipeline-method-layout:fullscreen .pipe-conn,
#pipeline-method-layout:-webkit-full-screen .pipe-conn,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-conn {
  background: rgba(255, 255, 255, 0.6);
  opacity: 0.6;
  animation: none;
}
#pipeline-method-layout:fullscreen .pipe-loop-arrow,
#pipeline-method-layout:-webkit-full-screen .pipe-loop-arrow,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-loop-arrow {
  opacity: 1;
  animation: none;
}
#pipeline-method-layout:fullscreen .pipe-loop-arrow path,
#pipeline-method-layout:-webkit-full-screen .pipe-loop-arrow path,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-loop-arrow path {
  stroke: #ffffff;
}
#pipeline-method-layout:fullscreen .pipe-loop-arrow .loop-label,
#pipeline-method-layout:-webkit-full-screen .pipe-loop-arrow .loop-label,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-loop-arrow .loop-label {
  fill: #ffffff;
  stroke: none;
}
#pipeline-method-layout:fullscreen #arrow-head path,
#pipeline-method-layout:-webkit-full-screen #arrow-head path,
body.pipeline-fallback-fullscreen #pipeline-method-layout #arrow-head path {
  fill: #ffffff;
}

/* Method panels (stage content area) pick up a dark surface too. */
#pipeline-method-layout:fullscreen .m-panel,
#pipeline-method-layout:-webkit-full-screen .m-panel,
body.pipeline-fallback-fullscreen #pipeline-method-layout .m-panel {
  background: rgba(16, 22, 34, 0.9);
  color: rgba(235, 243, 255, 0.94);
  border-radius: 14px;
  border: 1px solid rgba(200, 215, 235, 0.12);
}
#pipeline-method-layout:fullscreen .m-panel-caption,
#pipeline-method-layout:-webkit-full-screen .m-panel-caption,
body.pipeline-fallback-fullscreen #pipeline-method-layout .m-panel-caption {
  color: rgba(220, 232, 248, 0.88);
}
#pipeline-method-layout:fullscreen .m-panel-caption h3,
#pipeline-method-layout:-webkit-full-screen .m-panel-caption h3,
body.pipeline-fallback-fullscreen #pipeline-method-layout .m-panel-caption h3,
#pipeline-method-layout:fullscreen .stage-title,
#pipeline-method-layout:-webkit-full-screen .stage-title,
body.pipeline-fallback-fullscreen #pipeline-method-layout .stage-title {
  color: rgba(245, 250, 255, 0.98);
}

/* Sticky sidebar top offset should be 0 in fullscreen. */
#pipeline-method-layout:fullscreen .pipe-sidebar,
#pipeline-method-layout:-webkit-full-screen .pipe-sidebar,
body.pipeline-fallback-fullscreen #pipeline-method-layout .pipe-sidebar {
  top: 12px;
}

/* Fullscreen button inside fullscreen: lighten it. */
#pipeline-method-layout:fullscreen .pipeline-fullscreen-btn,
#pipeline-method-layout:-webkit-full-screen .pipeline-fullscreen-btn,
body.pipeline-fallback-fullscreen .pipeline-fullscreen-btn {
  background: rgba(30, 42, 60, 0.85);
  color: rgba(235, 243, 255, 0.95);
  border-color: rgba(200, 215, 235, 0.18);
}

/* Dataset Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  background: var(--color-bg-elevated, #1e2a3c);
  padding: 30px;
  border-radius: 12px;
  max-width: 600px;
  width: 90%;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  border: 1px solid var(--color-border, rgba(255,255,255,0.1));
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  color: var(--color-text, #fff);
}
.modal-overlay.active .modal-content {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: transparent;
  border: none;
  color: var(--color-text-muted, #99aabf);
  font-size: 1.2rem;
  cursor: pointer;
}
.modal-close:hover {
  color: var(--color-text, #fff);
}
.cmd-box {
  background: var(--color-bg-base, #111823);
  padding: 15px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  margin: 20px 0;
  border: 1px solid var(--color-border, rgba(255,255,255,0.1));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}
.cmd-box code {
  color: #a8c7fa;
  word-break: break-all;
}
.cmd-box .btn-copy {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.cmd-box .btn-copy:hover {
  background: rgba(255,255,255,0.2);
}
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}