:root {
  --bg: #f2f3f6;
  --surface: #ffffff;
  --surface-alt: #f4f6fb;
  --text: #0b1120;
  --muted: #4d5d72;
  --accent: #0f6fb5;
  --accent-2: #7f83d3;
  --accent-3: #30b9dd;
  --accent-soft: #e8ecf7;
  --line: #d7deea;
  --shadow: 0 14px 34px rgba(10, 22, 44, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background:
    radial-gradient(95% 42% at 18% 100%, rgba(143, 131, 211, 0.44), transparent 72%),
    radial-gradient(110% 50% at 76% 100%, rgba(79, 150, 219, 0.38), transparent 70%),
    radial-gradient(115% 56% at 100% 100%, rgba(48, 185, 221, 0.45), transparent 64%),
    var(--bg);
  line-height: 1.7;
}

h1,
h2,
h3 {
  margin: 0 0 0.5rem;
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.8rem, 4.6vw, 3.2rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-2);
}

.container {
  width: min(1140px, 94vw);
  margin: 0 auto;
}

.narrow {
  width: min(840px, 94vw);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.9);
  border-top: 8px solid #08122f;
  border-bottom: 1px solid var(--line);
}

.header-row {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  color: var(--text);
}

.top-nav {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.top-nav a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
}

.top-nav a:hover {
  background: var(--accent-soft);
}

.hero {
  padding: 70px 0 36px;
}

.venue-pill {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #364f86;
  background: rgba(127, 131, 211, 0.16);
  border: 1px solid rgba(127, 131, 211, 0.45);
}

.subtitle {
  margin-top: 0.7rem;
  font-size: clamp(1.02rem, 2.1vw, 1.32rem);
  line-height: 1.45;
  color: #253954;
  max-width: 1080px;
  text-wrap: pretty;
}

.hero h1 {
  position: relative;
  padding-left: 1.15rem;
  margin-top: 0.15rem;
}

.hero h1::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  bottom: 0.15rem;
  width: 5px;
  border-radius: 2px;
  background: linear-gradient(180deg, #584fcb, #0f6fb5);
}

.hero-key {
  background: linear-gradient(90deg, #5d95d0 0%, #d592d6 52%, #7f83d3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.authors {
  margin: 1rem 0 0.2rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
}

.authors sup,
.affiliations sup {
  font-size: 0.72em;
  vertical-align: super;
}

.affiliations {
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.contact-line {
  margin-top: 0.65rem;
  font-size: 0.98rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 42px;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--text);
  font-weight: 700;
}

.btn.primary {
  border-color: var(--accent);
  color: #ffffff;
  background: linear-gradient(120deg, var(--accent), var(--accent-3));
}

.btn[aria-disabled="true"] {
  opacity: 0.95;
  pointer-events: none;
  cursor: default;
}

.hf-icon {
  display: inline-block;
  font-size: 1.15rem;
  line-height: 1;
}

.hero-media {
  margin-top: 1.6rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #ffffff;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  display: block;
}

.zoomable-image {
  cursor: zoom-in;
}

.section {
  padding: 56px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(246, 248, 251, 0.98));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-note {
  margin: -0.3rem 0 1rem;
  color: var(--muted);
}

.results-intro {
  max-width: 960px;
}

.method-figure {
  margin: 0 0 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(14, 40, 65, 0.08);
}

.method-figure img {
  width: 100%;
  display: block;
}

.method-figure figcaption {
  padding: 0.75rem 0.9rem 0.9rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.method-note {
  margin-top: 0.5rem;
}

.results-summary {
  margin: 1.4rem 0 1.8rem;
  padding: 1rem 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 236, 247, 0.78));
  box-shadow: 0 8px 22px rgba(14, 40, 65, 0.06);
}

.results-summary h3,
.result-group-header h3 {
  margin-bottom: 0.45rem;
  font-size: 1.14rem;
}

.results-summary p,
.result-group-header p {
  margin: 0;
  color: var(--muted);
}

.result-group {
  margin-top: 2rem;
}

.result-group-header {
  margin-bottom: 1rem;
  max-width: 920px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: 1rem 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 6px 18px rgba(14, 40, 65, 0.06);
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.result-tile {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(14, 40, 65, 0.06);
}

.result-tile img {
  width: 100%;
  display: block;
  object-fit: contain;
}

.result-tile figcaption {
  padding: 0.7rem 0.9rem 0.9rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.results-footnote {
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 24px;
  background: rgba(8, 18, 47, 0.88);
}

.image-lightbox[hidden] {
  display: none;
}

.lightbox-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.lightbox-action,
.lightbox-close {
  min-height: 40px;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-family: "Manrope", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.lightbox-action {
  min-width: 48px;
}

.lightbox-stage {
  max-width: 96vw;
  max-height: calc(100vh - 96px);
  overflow: auto;
  border-radius: 12px;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.lightbox-stage.is-dragging {
  cursor: grabbing;
}

.image-lightbox img {
  display: block;
  width: auto;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  background: #ffffff;
}

.lightbox-close {
  min-width: 72px;
}

.lightbox-action:hover,
.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.code-wrap {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--text);
  overflow: hidden;
  box-shadow: var(--shadow);
}

pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  color: #d6e2ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.copy-btn {
  border: 0;
  width: 100%;
  min-height: 44px;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(120deg, var(--accent), var(--accent-3));
  cursor: pointer;
}

.copy-btn:hover {
  background: linear-gradient(120deg, #0c5f9b, #249ec0);
}

.site-footer {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding: 22px 0 30px;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .cards,
  .result-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 48px;
  }

  .top-nav {
    display: none;
  }

  .cards,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 44px 0;
  }

  .image-lightbox {
    padding: 14px;
  }

  .lightbox-toolbar {
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
    justify-content: center;
  }
}