@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Libre+Baskerville:wght@400;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  color-scheme: dark;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  --body-bg: #0d0c0b;
  --card-surface: #141210;
  --card-surface-2: #181512;
  --text-primary: #f5f2eb;
  --text-secondary: #9c9488;
  --accent-color: #d97706;
  --accent-soft: rgba(217, 119, 6, 0.12);
  --accent-border: rgba(217, 119, 6, 0.2);
  --track-rest: #312820;
  --hairline: rgba(255, 255, 255, 0.04);
  --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.45);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--body-bg);
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background:
    radial-gradient(circle at 50% 0%, rgba(217, 119, 6, 0.10) 0%, transparent 34%),
    radial-gradient(circle at 12% 18%, rgba(217, 119, 6, 0.06) 0%, transparent 32%),
    linear-gradient(180deg, #0d0c0b 0%, #100e0c 44%, #0d0c0b 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding: 58px 0 96px;
}

.hero-section,
.hero-slider-section,
.content-section {
  margin-bottom: 80px;
}

.hero-section {
  position: relative;
  padding: 34px 0 4px;
  background: radial-gradient(circle at top, rgba(217, 119, 6, 0.08) 0%, transparent 65%);
  border-radius: var(--radius-xl);
}

.hero-copy {
  max-width: 1040px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow,
.section-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 6px 13px;
  border: 1px solid rgba(217, 119, 6, 0.22);
  border-radius: 999px;
  background: rgba(217, 119, 6, 0.10);
  color: #f0a23a;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.105em;
  text-transform: uppercase;
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
}

.hero-copy h1 {
  margin: 22px auto 0;
  max-width: 980px;
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.7vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.035em;
  font-weight: 700;
  color: var(--text-primary);
}

.authors {
  margin-top: 20px;
  font-size: clamp(15px, 1.55vw, 18px);
  line-height: 1.85;
  font-weight: 500;
  color: rgba(245, 242, 235, 0.94);
}

.authors-line-2 {
  margin-top: 0;
}

.affiliations {
  margin: 12px auto 0;
  max-width: 900px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
}

.separator {
  margin: 0 10px;
  color: rgba(217, 119, 6, 0.45);
}

.paper-links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 7px 15px 7px 8px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: rgba(245, 242, 235, 0.82);
  font-size: 14px;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease, color 220ms ease;
}

.link-pill:hover {
  transform: translateY(-2px);
  border-color: rgba(217, 119, 6, 0.35);
  background: rgba(217, 119, 6, 0.12);
  color: var(--text-primary);
}

.link-pill .icon {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(217, 119, 6, 0.12);
  color: #f3b666;
}

.link-pill .icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.link-pill .icon img {
  width: 18px;
  height: 18px;
  display: block;
}

.hf-icon {
  background: rgba(255, 210, 30, 0.12) !important;
}

.hf-icon img {
  width: 23px;
  height: 23px;
  display: block;
}

.card-surface,
.figure-card,
.interactive-card,
.citation-block,
.hero-viewer {
  background: var(--card-surface);
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow-card);
}

.hero-viewer,
.figure-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.hero-viewer {
  transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}

.hero-viewer:hover,
.figure-card:hover,
.interactive-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-border);
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading h2 {
  margin-top: 16px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.section-heading p {
  margin-top: 13px;
  max-width: 74ch;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.compact-heading {
  margin-bottom: 20px;
}

.viewer-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 22px 0;
}

.viewer-title {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.viewer-subtitle {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}

.viewer-stage,
.image-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #070605;
}

.viewer-stage {
  aspect-ratio: 16 / 9;
}

.image-container {
  aspect-ratio: 4 / 3;
}

.viewer-stage img,
.image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.viewer-controls,
.card-footer {
  padding: 18px 22px 21px;
  border-top: 1px solid var(--hairline);
}

.apple-slider {
  --pct: 0%;
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  background: linear-gradient(
    to right,
    var(--accent-color) 0%,
    var(--accent-color) var(--pct),
    var(--track-rest) var(--pct),
    var(--track-rest) 100%
  );
}

.apple-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.apple-slider:hover::-webkit-slider-thumb,
.apple-slider:active::-webkit-slider-thumb {
  transform: scale(1.25);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.55), 0 0 0 5px rgba(217, 119, 6, 0.10);
}

.apple-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.apple-slider:hover::-moz-range-thumb,
.apple-slider:active::-moz-range-thumb {
  transform: scale(1.25);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.55), 0 0 0 5px rgba(217, 119, 6, 0.10);
}

.slider-ends {
  margin-top: 9px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
}

.figure-card {
  padding: 18px;
  transition: transform 240ms ease, border-color 240ms ease;
}

.figure-card img {
  width: 100%;
  border-radius: 18px;
  background: #090807;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.interactive-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}

.card-footer {
  padding: 17px 18px 19px;
}

.citation-block {
  margin-top: 20px;
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  overflow-x: auto;
  background: #0a0908;
  color: rgba(245, 242, 235, 0.72);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  white-space: pre;
}

@media (max-width: 768px) {
  .page-shell {
    width: min(calc(100% - 24px), 1100px);
    padding: 34px 0 70px;
  }

  .hero-section,
  .hero-slider-section,
  .content-section {
    margin-bottom: 58px;
  }

  .hero-copy h1 {
    font-size: clamp(28px, 9vw, 42px);
  }

  .authors {
    font-size: 15px;
  }

  .paper-links {
    gap: 10px;
  }

  .link-pill {
    min-height: 40px;
    font-size: 13px;
  }

  .viewer-topbar {
    flex-direction: column;
  }

  .grid-container {
    grid-template-columns: 1fr;
  }
}

.hero-viewer.is-autoplayable .viewer-stage {
  cursor: pointer;
}