:root {
  --bg: #edf3f8;
  --bg-soft: #dfe8f2;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --ink: #102235;
  --ink-soft: #4b6175;
  --ink-mute: #708296;
  --line: rgba(16, 34, 53, 0.12);
  --green: #255a8c;
  --green-strong: #173b5f;
  --green-bright: #6db5ff;
  --gold: #8fd4ff;
  --cream: #f7fbff;
  --night: #0d2136;
  --night-soft: #17324d;
  --night-card: rgba(16, 35, 56, 0.82);
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --shadow-sm: 0 14px 26px rgba(12, 29, 48, 0.07);
  --shadow-md: 0 28px 56px rgba(12, 29, 48, 0.12);
  --shadow-lg: 0 40px 90px rgba(12, 29, 48, 0.2);
  --container: min(1080px, calc(100vw - 40px));
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(109, 181, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(143, 212, 255, 0.16), transparent 24%),
    linear-gradient(180deg, #f4f8fc 0%, #edf3f8 36%, #e4edf6 100%);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(241, 247, 253, 0.82);
  border-bottom: 1px solid rgba(16, 34, 53, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

.brand,
h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
}

.brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--green-strong);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.09);
}

.hero-section {
  position: relative;
  overflow: clip;
  padding: 58px 0 48px;
}

.hero-noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 24% 18%, rgba(109, 181, 255, 0.16), transparent 26%),
    radial-gradient(circle at 86% 12%, rgba(143, 212, 255, 0.12), transparent 22%),
    linear-gradient(180deg, rgba(10, 29, 48, 0.6) 0%, rgba(15, 43, 69, 0.56) 52%, rgba(22, 57, 88, 0.62) 100%),
    url("../images/background.jpg");
  background-size: auto, auto, auto, cover;
  background-position: center, center, center, center;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.98), rgba(0, 0, 0, 0.92));
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.hero-copy,
.hero-visual,
.info-card,
.method-card,
.feature-card,
.stat-card,
.visual-card,
.media-card,
.placeholder-card,
.abstract-card,
.bibtex-card,
.metric-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.hero-copy {
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 24px;
  text-align: center;
  background: rgba(243, 248, 253, 0.14);
  border-color: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  box-shadow: none;
}

.eyebrow,
.kicker,
.method-tag,
.placeholder-label,
.hero-note-label {
  margin: 0 0 12px;
  color: var(--green-bright);
  font-family: "Sora", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-title {
  margin: 0 0 14px;
  color: #f7faef;
  font-size: clamp(2.2rem, 4.7vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero-title-mark {
  display: inline-block;
  background: linear-gradient(135deg, #86f7c8 0%, #86d7ff 42%, #ffd36f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.hero-title-rest {
  color: #f7faef;
}

.hero-summary {
  max-width: 680px;
  margin: 0 auto 16px;
  color: rgba(239, 246, 237, 0.86);
  font-size: 0.97rem;
}

.author-stack {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.author-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  color: rgba(247, 250, 239, 0.9);
  font-weight: 600;
}

.author-name {
  display: inline-block;
}

.author-name sup,
.affiliations sup {
  font-size: 0.68em;
  vertical-align: super;
  line-height: 0;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 5px;
  margin-bottom: 10px;
}

.affiliation-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 4px 7px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  flex-wrap: nowrap;
}

.affiliation-logo-shell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 36px;
  padding: 0;
  background: transparent;
  box-shadow: none;
  flex: 0 0 auto;
}

.shell-cuhk,
.shell-ra,
.shell-bcfc,
.shell-liverpool,
.shell-sfu,
.shell-sysu {
  padding: 3px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}

.affiliation-logo {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.08));
}

.affiliation-logo-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(134, 247, 200, 0.24), rgba(255, 211, 111, 0.28));
  color: #f7faef;
  font-family: "Sora", sans-serif;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.shell-ra {
  width: 64px;
  height: 32px;
  border-radius: 12px;
}

.shell-cuhk {
  width: 45px;
  height: 45px;
  border-radius: 16px;
}

.shell-bcfc {
  width: 45px;
  height: 45px;
  border-radius: 999px;
}

.shell-liverpool {
  width: 50px;
  height: 40px;
  border-radius: 12px;
}

.shell-sfu {
  width: 58px;
  height: 30px;
  border-radius: 12px;
}

.shell-sysu {
  width: 45px;
  height: 45px;
  border-radius: 999px;
}

.logo-cuhk {
  width: 42px;
  height: 42px;
}

.logo-ra {
  width: 58px;
  height: 22px;
}

.logo-bcfc {
  width: 39px;
  height: 39px;
}

.logo-liverpool {
  width: 43px;
  height: 43px;
}

.logo-sfu {
  width: 54px;
  height: 18px;
}

.logo-sysu {
  width: 42px;
  height: 42px;
}

.affiliations p,
.affiliation-note {
  margin: 0;
  color: rgba(228, 239, 229, 0.7);
  font-size: 0.84rem;
}

.affiliation-note {
  width: 100%;
  margin-top: 4px;
}

.hero-resource-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
  gap: 10px;
  max-width: 660px;
  margin: 14px auto 0;
  align-items: stretch;
}

.hero-actions,
.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.hero-actions {
  justify-content: center;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    rgba(8, 17, 12, 0.16);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 18px 36px rgba(6, 12, 9, 0.14);
  backdrop-filter: blur(14px);
}

.hero-actions .button {
  min-height: 46px;
  min-width: 146px;
  padding: 0 22px;
  font-size: 0.9rem;
}

.resource-link {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-width: 0;
  min-height: 58px;
  padding: 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 18px 34px rgba(8, 17, 27, 0.18);
  backdrop-filter: blur(14px);
  text-align: left;
  justify-self: stretch;
  align-self: stretch;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition),
    background var(--transition);
}

.resource-link::before {
  content: "";
  position: absolute;
  inset: 1px 1px auto;
  height: 52%;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.resource-link:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 24px 40px rgba(8, 17, 27, 0.22);
}

.resource-link-github {
  color: #eef7ff;
  background: linear-gradient(180deg, rgba(34, 61, 92, 0.9), rgba(18, 37, 58, 0.95));
}

.resource-link-arxiv {
  color: #eef5fb;
  border-color: rgba(178, 204, 228, 0.22);
  background: linear-gradient(180deg, rgba(103, 132, 164, 0.9), rgba(73, 98, 126, 0.95));
}

.resource-link-partner {
  color: #eef7ff;
  border-color: rgba(192, 224, 255, 0.2);
  background: linear-gradient(180deg, rgba(56, 96, 138, 0.9), rgba(30, 60, 96, 0.95));
}

.resource-link-arxiv::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0));
}

.resource-link-partner::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0));
}

.resource-icon-shell,
.resource-arrow,
.resource-copy,
.resource-kicker,
.resource-name {
  position: relative;
  z-index: 1;
}

.resource-icon-shell {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: #f5fbff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.resource-link-arxiv .resource-icon-shell {
  background: linear-gradient(180deg, #c7392f, #932b23);
  color: #ffffff;
}

.resource-link-partner .resource-icon-shell {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(223, 239, 255, 0.9));
  color: #27486c;
}

.resource-icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.resource-icon-arxiv {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.resource-icon-bcfc {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.resource-copy {
  min-width: 0;
}

.resource-kicker {
  display: block;
  margin-bottom: 2px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.72;
}

.button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  min-width: 166px;
  padding: 0 26px;
  border-radius: 999px;
  font-family: "Sora", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  white-space: nowrap;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

.resource-name {
  display: block;
  font-family: "Sora", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.resource-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 0.84rem;
  font-weight: 700;
}

.resource-link-arxiv .resource-arrow {
  background: rgba(255, 255, 255, 0.1);
}

.button::before {
  content: "";
  position: absolute;
  inset: 1px 1px auto;
  height: 44%;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #102235;
  background: linear-gradient(135deg, #93d8ff 0%, #d9efff 100%);
  box-shadow:
    0 16px 30px rgba(7, 13, 10, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.26);
}

.button-secondary {
  color: #f4faef;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.09));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.button-overview {
  background: linear-gradient(180deg, rgba(97, 142, 184, 0.78), rgba(69, 107, 146, 0.88));
  border: 1px solid rgba(219, 236, 250, 0.22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 24px rgba(7, 13, 10, 0.08);
}

.button-results {
  background: linear-gradient(180deg, rgba(114, 163, 205, 0.8), rgba(80, 123, 164, 0.9));
  border: 1px solid rgba(196, 226, 248, 0.24);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 24px rgba(7, 13, 10, 0.1);
}

.button-ghost {
  color: #eff7ea;
  background: linear-gradient(180deg, rgba(37, 75, 112, 0.82), rgba(24, 50, 77, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.button-secondary:hover,
.button-ghost:hover {
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 10px 24px rgba(6, 12, 9, 0.12);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 820px;
  margin: 16px auto 0;
}

.metric-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  min-height: 88px;
  padding: 12px 16px;
  border-color: rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.07));
  box-shadow: 0 20px 36px rgba(8, 17, 12, 0.1);
  backdrop-filter: blur(10px);
  text-align: center;
  border-radius: 28px;
}

.metric-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 300px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--metric-accent, rgba(182, 235, 126, 0.8)), transparent);
}

.metric-card::after {
  content: "";
  position: absolute;
  top: -34px;
  right: -34px;
  z-index: -1;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--metric-glow, rgba(182, 235, 126, 0.1));
  filter: blur(10px);
}

.metric-card:nth-child(1) {
  --metric-accent: rgba(182, 235, 126, 0.95);
  --metric-glow: rgba(182, 235, 126, 0.14);
}

.metric-card:nth-child(2) {
  --metric-accent: rgba(134, 215, 255, 0.95);
  --metric-glow: rgba(134, 215, 255, 0.12);
}

.metric-card:nth-child(3) {
  --metric-accent: rgba(143, 212, 255, 0.95);
  --metric-glow: rgba(143, 212, 255, 0.12);
}

.metric-card:nth-child(4) {
  --metric-accent: rgba(134, 247, 200, 0.95);
  --metric-glow: rgba(134, 247, 200, 0.12);
}

.metric-card strong {
  display: block;
  color: #f8fbf1;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.45rem, 2vw, 1.9rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.metric-card span {
  max-width: 22ch;
  color: rgba(239, 246, 237, 0.82);
  font-size: 0.92rem;
  line-height: 1.3;
}

.hero-visual {
  padding: 14px;
  background:
    linear-gradient(180deg, rgba(251, 247, 239, 0.94), rgba(243, 238, 226, 0.96));
}

.hero-panel {
  overflow: hidden;
  border-radius: 22px;
}

.hero-panel img,
.visual-card img,
.media-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-panel-main {
  aspect-ratio: 1.32 / 1;
  margin-bottom: 12px;
  box-shadow: var(--shadow-md);
}

.hero-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.hero-panel-small {
  background: var(--surface-strong);
}

.hero-panel-small img {
  aspect-ratio: 1.15 / 1;
}

.hero-panel-small figcaption {
  padding: 10px 12px 12px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 600;
}

.hero-note {
  padding: 14px 16px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(37, 90, 140, 0.08), rgba(143, 212, 255, 0.12));
}

.hero-note p {
  margin: 0;
  color: var(--ink-soft);
}

.section-shell {
  padding: 72px 0;
}

.section-soft {
  background:
    radial-gradient(circle at top left, rgba(143, 212, 255, 0.16), transparent 26%),
    linear-gradient(180deg, rgba(248, 252, 255, 0.86) 0%, rgba(238, 245, 251, 0.96) 100%);
}

.section-story {
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.18), transparent 24%),
    radial-gradient(circle at bottom left, rgba(143, 212, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(250, 253, 255, 0.94) 0%, rgba(238, 245, 251, 0.97) 100%);
}

.section-story-alt {
  background:
    radial-gradient(circle at top left, rgba(109, 181, 255, 0.14), transparent 24%),
    radial-gradient(circle at bottom right, rgba(143, 212, 255, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(247, 251, 255, 0.96) 0%, rgba(236, 243, 249, 0.94) 100%);
}

.section-method {
  background:
    radial-gradient(circle at top left, rgba(87, 147, 204, 0.14), transparent 22%),
    radial-gradient(circle at bottom right, rgba(177, 220, 255, 0.16), transparent 28%),
    linear-gradient(180deg, rgba(230, 239, 248, 0.96) 0%, rgba(216, 229, 241, 0.98) 100%);
}

.section-dataset {
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.2), transparent 26%),
    radial-gradient(circle at bottom left, rgba(143, 212, 255, 0.16), transparent 30%),
    linear-gradient(180deg, rgba(243, 248, 253, 0.98) 0%, rgba(229, 239, 248, 0.98) 100%);
}

.section-alt {
  background: linear-gradient(180deg, rgba(247, 251, 255, 0.56), rgba(255, 255, 255, 0));
}

.section-dark {
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.16), transparent 22%),
    radial-gradient(circle at bottom left, rgba(143, 212, 255, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(238, 245, 251, 0.97) 0%, rgba(224, 234, 245, 0.98) 100%);
}

.section-heading {
  max-width: 960px;
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 0 0 16px;
  max-width: 780px;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.03;
  letter-spacing: -0.05em;
}

.section-heading p {
  margin: 0;
  max-width: 960px;
  color: var(--ink-soft);
}

.evaluation-subsection {
  display: grid;
  gap: 20px;
}

#utility-quiz {
  margin-top: 96px;
}

.evaluation-subsection-head {
  max-width: 920px;
}

.evaluation-subsection-head h2 {
  margin: 0 0 14px;
  max-width: 760px;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.evaluation-subsection-head p {
  margin: 0;
  max-width: 900px;
  color: var(--ink-soft);
}

.section-dark .section-heading p {
  color: var(--ink-soft);
}

.kicker {
  color: var(--green);
}

.section-dark .kicker {
  color: var(--green);
}

.card-grid,
.method-layout,
.mode-layout,
.feature-grid,
.stat-grid,
.visual-grid,
.media-grid,
.result-columns {
  display: grid;
  gap: 18px;
}

.card-grid-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card,
.method-card,
.feature-card,
.stat-card,
.visual-card,
.media-card,
.placeholder-card,
.abstract-card,
.bibtex-card {
  padding: 20px;
  background: var(--surface);
}

.info-card::before,
.method-card::before,
.feature-card::before,
.placeholder-card::before {
  content: "";
  display: block;
  width: 100%;
  height: 4px;
  margin: -20px 0 16px;
  border-radius: 999px;
  background: linear-gradient(90deg, #6db5ff 0%, #8fd4ff 100%);
}

.card-index {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--green);
  font-family: "Sora", sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.info-card h3,
.method-card h3,
.feature-card h3,
.result-copy h3,
.abstract-card h3,
.bibtex-card h3,
.placeholder-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.18;
}

.info-card p,
.method-card p,
.feature-card p,
.result-copy p,
.abstract-card p,
.placeholder-card p,
.visual-card figcaption,
.media-card figcaption {
  margin: 0;
  color: var(--ink-soft);
}

.method-layout {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 22px;
}

.mode-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.method-group-intro {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 24px;
  align-items: end;
  margin: 0 0 22px;
}

.method-group-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.method-group-intro h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.method-group-intro p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.method-divider {
  display: grid;
  gap: 14px;
  max-width: 920px;
  margin: 4px 0 28px;
}

.method-divider-line {
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(37, 90, 140, 0.22), rgba(37, 90, 140, 0.03));
}

.method-divider p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.method-tag {
  color: var(--card-accent, var(--green));
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 18px;
}

.method-card,
.feature-card {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid rgba(18, 32, 24, 0.08);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(240, 246, 252, 0.97));
  box-shadow: 0 18px 38px rgba(14, 24, 18, 0.07);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.mode-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 100%;
  padding: 24px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(240, 246, 252, 0.97));
  box-shadow: 0 18px 38px rgba(14, 24, 18, 0.07);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  isolation: isolate;
}

.mode-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 90, 140, 0.14);
  box-shadow: 0 26px 48px rgba(14, 24, 18, 0.1);
}

.mode-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--mode-accent, #6db5ff), rgba(143, 212, 255, 0.9));
}

.mode-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -44px auto;
  z-index: -1;
  width: 146px;
  height: 146px;
  border-radius: 50%;
  background: var(--mode-glow, rgba(109, 181, 255, 0.16));
  filter: blur(12px);
}

.mode-card-predictive {
  --mode-accent: #5ca6ee;
  --mode-glow: rgba(109, 181, 255, 0.18);
}

.mode-card-conditional {
  --mode-accent: #7dbde7;
  --mode-glow: rgba(143, 212, 255, 0.2);
}

.mode-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 6px;
}

.mode-chip,
.mode-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-chip {
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  border: 1px solid rgba(37, 90, 140, 0.1);
}

.mode-badge {
  color: var(--mode-accent, var(--green));
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(37, 90, 140, 0.08);
}

.mode-card h3 {
  margin: 0;
  max-width: 16ch;
  font-size: 1.36rem;
  line-height: 1.14;
}

.mode-card p {
  margin: 0;
  color: var(--ink-soft);
}

.mode-lead {
  font-size: 1rem;
  line-height: 1.7;
}

.mode-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mode-points li {
  position: relative;
  padding: 9px 14px 15px 40px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink-soft);
  line-height: 1.55;
}

.mode-points li::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mode-accent, #6db5ff), rgba(143, 212, 255, 0.92));
  box-shadow: 0 0 0 5px rgba(109, 181, 255, 0.12);
}

.method-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 24px;
}

.method-card:hover,
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 90, 140, 0.16);
  box-shadow: 0 26px 48px rgba(14, 24, 18, 0.1);
}

.method-card::before,
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  margin: 0;
  border-radius: 0;
  background: linear-gradient(90deg, var(--card-accent, #6db5ff), rgba(143, 212, 255, 0.9));
}

.method-card::after,
.feature-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -44px auto;
  z-index: -1;
  width: 146px;
  height: 146px;
  border-radius: 50%;
  background: var(--card-glow, rgba(109, 181, 255, 0.14));
  filter: blur(12px);
}

.method-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  margin-top: 6px;
}

.method-chip,
.feature-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 999px;
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.method-chip {
  color: var(--card-accent, var(--green-strong));
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(37, 90, 140, 0.08);
}

.method-card h3 {
  max-width: 17ch;
  margin-bottom: 12px;
  font-size: 1.34rem;
}

.method-card p {
  position: relative;
  z-index: 1;
}

.method-note {
  margin-top: auto;
  padding-top: 18px;
  color: var(--card-accent, var(--green-strong));
  font-size: 0.92rem;
  line-height: 1.45;
}

.method-note::before {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  margin: 0 0 14px;
  background: linear-gradient(90deg, var(--card-glow, rgba(109, 181, 255, 0.16)), rgba(37, 90, 140, 0));
}

.method-card-backbone {
  --card-accent: #5ca6ee;
  --card-glow: rgba(109, 181, 255, 0.16);
}

.method-card-context {
  --card-accent: #70b5dd;
  --card-glow: rgba(134, 215, 255, 0.16);
}

.method-card-guidance {
  --card-accent: #7dbde7;
  --card-glow: rgba(143, 212, 255, 0.16);
}

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 100%;
  padding: 22px;
}

.feature-card-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "chip icon"
    "title icon";
  align-items: start;
  column-gap: 16px;
  row-gap: 12px;
  margin-bottom: 8px;
}

.feature-chip {
  grid-area: chip;
  width: fit-content;
  color: var(--feature-accent, var(--green-strong));
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--feature-line, rgba(37, 90, 140, 0.1));
}

.feature-icon {
  grid-area: icon;
  align-self: center;
  width: 76px;
  height: 76px;
  object-fit: contain;
}

.feature-card-top h3 {
  grid-area: title;
  max-width: 11ch;
  margin: 0;
  font-size: 1.28rem;
}

.feature-note {
  margin-top: auto;
  padding-top: 12px;
  color: var(--feature-accent, var(--green-strong));
  font-size: 0.92rem;
  line-height: 1.45;
}

.feature-note::before {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  margin: 0 0 12px;
  background: linear-gradient(90deg, var(--feature-line, rgba(37, 90, 140, 0.14)), rgba(37, 90, 140, 0));
}

.feature-card-rule {
  --card-accent: #5ca6ee;
  --feature-accent: #1f5687;
  --feature-line: rgba(109, 181, 255, 0.26);
  --card-glow: rgba(109, 181, 255, 0.14);
}

.feature-card-language {
  --card-accent: #70b5dd;
  --feature-accent: #17506a;
  --feature-line: rgba(134, 215, 255, 0.26);
  --card-glow: rgba(134, 215, 255, 0.14);
}

.feature-card-value {
  --card-accent: #7dbde7;
  --feature-accent: #2f6d9f;
  --feature-line: rgba(143, 212, 255, 0.28);
  --card-glow: rgba(143, 212, 255, 0.14);
}

.story-figure-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 0;
  max-width: 1020px;
  margin: 0 auto;
  border: 1px solid rgba(18, 32, 24, 0.1);
  border-radius: var(--radius-lg);
  background: transparent;
  box-shadow: var(--shadow-md);
}

.story-figure-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, #6db5ff 0%, #8fd4ff 50%, #d9efff 100%);
}

.story-figure-image {
  width: calc(100% - 48px);
  height: auto;
  margin: 24px auto 0;
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
}

.story-figure-meta {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px 24px;
}

.story-figure-meta h3 {
  margin: 0 0 10px;
  font-size: 1.32rem;
  line-height: 1.14;
}

.story-figure-meta p {
  margin: 0;
  color: var(--ink-soft);
}

.story-figure-card-wide .story-figure-image {
  background: transparent;
}

.story-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.story-actions {
  display: flex;
  justify-content: flex-start;
  flex: 0 0 auto;
}

.story-button {
  min-width: 0;
  color: var(--green-strong);
  background: linear-gradient(180deg, rgba(37, 90, 140, 0.1), rgba(37, 90, 140, 0.05));
  border-color: rgba(37, 90, 140, 0.12);
  box-shadow: none;
}

.dataset-overview,
.dataset-detail-grid,
.dataset-reserve-grid {
  display: grid;
  gap: 22px;
}

.dataset-overview {
  grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.45fr);
  align-items: stretch;
  margin-bottom: 22px;
}

.dataset-hero-card,
.dataset-side-card,
.dataset-card,
.dataset-stat-card,
.dataset-reserve-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(16, 34, 53, 0.1);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.13), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(240, 247, 253, 0.97));
  box-shadow: var(--shadow-sm);
}

.dataset-hero-card,
.dataset-side-card,
.dataset-card,
.dataset-reserve-card {
  padding: 24px;
}

.dataset-hero-card::before,
.dataset-side-card::before,
.dataset-card::before,
.dataset-stat-card::before,
.dataset-reserve-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, #6db5ff 0%, #8fd4ff 52%, #d9efff 100%);
}

.dataset-hero-card::after,
.dataset-side-card::after,
.dataset-card::after,
.dataset-stat-card::after,
.dataset-reserve-card::after {
  content: "";
  position: absolute;
  inset: auto -48px -48px auto;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(143, 212, 255, 0.14);
  filter: blur(14px);
  pointer-events: none;
}

.dataset-hero-topline,
.dataset-side-head,
.dataset-card-head,
.dataset-reserve-head {
  position: relative;
  z-index: 1;
}

.dataset-hero-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.dataset-pill,
.dataset-side-kicker,
.dataset-card-tag,
.dataset-reserve-tag,
.dataset-stat-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  background: rgba(255, 255, 255, 0.74);
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dataset-hero-card h3,
.dataset-side-card h3,
.dataset-card h3,
.dataset-reserve-card h3 {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.dataset-hero-copy,
.dataset-side-card p,
.dataset-card p,
.dataset-reserve-card p,
.dataset-stat-card p,
.dataset-field-card p,
.dataset-mini-note p {
  margin: 0;
  color: var(--ink-soft);
}

.dataset-hero-copy {
  max-width: 62ch;
  font-size: 1rem;
}

.dataset-hero-card {
  display: grid;
  align-content: start;
  gap: 0;
  height: 100%;
}

.dataset-hero-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.dataset-hero-band div {
  position: relative;
  z-index: 1;
  padding: 16px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.66);
}

.dataset-hero-band strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1rem;
  line-height: 1.05;
}

.dataset-hero-band span {
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.55;
}

.dataset-side-card {
  display: grid;
  grid-template-rows: auto auto 1fr;
  align-content: stretch;
  gap: 16px;
  height: 100%;
}

.dataset-side-head {
  display: grid;
  gap: 12px;
}

.dataset-league-list {
  display: grid;
  gap: 10px;
  align-self: end;
  margin-top: 0;
}

.dataset-league-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(16, 34, 53, 0.08);
}

.dataset-league-row span {
  color: var(--ink-soft);
}

.dataset-league-row strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1rem;
}

.dataset-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 22px;
}

.dataset-stat-card {
  padding: 22px 20px 20px;
}

.dataset-stat-card strong {
  display: block;
  margin: 16px 0 10px;
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: clamp(1.7rem, 2.5vw, 2.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.dataset-detail-grid {
  grid-template-columns: 1fr;
  margin-bottom: 26px;
}

.dataset-card {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 100%;
  padding: 28px;
}

.dataset-card-head {
  display: grid;
  gap: 0;
}

.dataset-card-head .dataset-card-tag {
  margin-bottom: 12px;
}

.dataset-card-head h3 {
  margin-top: 0;
  margin-bottom: 2px;
}

.dataset-card-head .dataset-card-lead {
  margin-top: 0;
}

.dataset-card-lead {
  max-width: none;
  font-size: 1rem;
  line-height: 1.7;
}

.dataset-field-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.dataset-field-card {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 172px;
  padding: 20px;
  border-radius: 18px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(243, 248, 253, 0.92));
  box-shadow: 0 12px 24px rgba(12, 29, 48, 0.04);
}

.dataset-field-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 32px;
  border-radius: 999px;
  background: rgba(109, 181, 255, 0.16);
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.dataset-field-card h4 {
  margin: 0;
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1.05rem;
  line-height: 1.14;
}

.dataset-field-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.56;
}

.dataset-process-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: dataset-step;
}

.dataset-process-list li {
  position: relative;
  padding: 14px 16px 14px 54px;
  border-radius: 18px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink-soft);
}

.dataset-process-list li::before {
  counter-increment: dataset-step;
  content: counter(dataset-step);
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5ca6ee, #8fd4ff);
  color: #ffffff;
  font-family: "Sora", sans-serif;
  font-size: 0.86rem;
  font-weight: 700;
}

.dataset-mini-note {
  position: relative;
  z-index: 1;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  background:
    linear-gradient(180deg, rgba(37, 90, 140, 0.06), rgba(255, 255, 255, 0.74));
}

.dataset-mini-note strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1rem;
}

.dataset-reserve-grid {
  grid-template-columns: 1fr;
  gap: 26px;
}

.dataset-reserve-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 100%;
}

.dataset-reserve-head {
  display: grid;
  gap: 12px;
}

.dataset-tool-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  margin-top: 6px;
  padding: 20px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(236, 245, 252, 0.9));
}

.dataset-tool-toolbar,
.dataset-tool-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.dataset-toggle-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dataset-toolbar-side {
  display: grid;
  justify-items: end;
  gap: 10px;
}

.dataset-color-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}

.dataset-color-legend-title {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.dataset-color-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.dataset-color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(16, 34, 53, 0.08);
}

.dataset-color-dot-attacking {
  background: #e5b0b8;
}

.dataset-color-dot-defending {
  background: #a8c4e0;
}

.dataset-color-dot-neutral {
  background: #e1d0b4;
}

.dataset-toolbar-note {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  text-align: right;
}

.dataset-toolbar-note code {
  color: var(--green-strong);
}

.dataset-toggle-button {
  padding: 9px 14px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.82);
  font-family: "Sora", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
}

.dataset-toggle-button:hover,
.dataset-toggle-button.is-active {
  color: var(--green-strong);
  background: rgba(109, 181, 255, 0.14);
  border-color: rgba(37, 90, 140, 0.18);
  transform: translateY(-1px);
}

.dataset-range-control {
  display: grid;
  grid-template-columns: auto minmax(120px, 180px) auto;
  align-items: center;
  gap: 12px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.dataset-range-control strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.94rem;
}

.dataset-range-control input {
  width: 100%;
  accent-color: var(--green);
}

.dataset-tool-body {
  display: grid;
  gap: 18px;
}

.dataset-tool-body-event,
.dataset-tool-body-trajectory {
  grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.9fr);
  align-items: start;
}

.dataset-tool-shell-event .dataset-tool-body-event {
  grid-template-columns: 1fr;
}

.dataset-tool-shell-trajectory .dataset-tool-body-trajectory {
  grid-template-columns: minmax(0, 1.44fr) minmax(320px, 0.76fr);
  align-items: start;
}

.event-chart-shell,
.trajectory-stage-shell,
.dataset-tool-inspector {
  border: 1px solid rgba(16, 34, 53, 0.08);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
}

.event-chart-shell,
.trajectory-stage-shell {
  padding: 16px;
}

.event-chart-shell {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-gutter: stable both-edges;
}

.event-chart {
  display: flex;
  align-items: end;
  gap: 12px;
  min-height: 360px;
  width: max-content;
  min-width: 100%;
  padding: 0 4px 4px;
}

.event-bar {
  flex: 0 0 var(--event-bar-width, 68px);
  display: grid;
  grid-template-rows: auto minmax(160px, 1fr) auto;
  gap: 10px;
  min-width: var(--event-bar-width, 68px);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: center;
}

.event-bar-value {
  min-height: 20px;
  color: var(--ink-mute);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.1;
}

.event-bar-column {
  align-self: end;
  width: 100%;
  height: calc(var(--bar-size, 0.4) * 260px);
  border-radius: 18px 18px 8px 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.02)),
    var(--bar-color, #6db5ff);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.event-bar-label {
  color: var(--ink-soft);
  min-height: 3.2em;
  font-size: 0.76rem;
  line-height: 1.22;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.event-bar:hover .event-bar-column,
.event-bar.is-active .event-bar-column {
  transform: translateY(-4px);
  box-shadow: 0 14px 24px rgba(12, 29, 48, 0.12);
  filter: saturate(1.08);
}

.event-bar.is-active .event-bar-label,
.event-bar.is-active .event-bar-value {
  color: var(--green-strong);
}

.dataset-tool-inspector {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.dataset-tool-shell-event .dataset-tool-inspector {
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: 14px 16px;
}

.dataset-inspector-block {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.dataset-tool-shell-event .dataset-inspector-block {
  grid-column: 1;
  align-content: start;
  min-height: 100%;
  padding: 14px 4px 6px 2px;
}

.dataset-inspector-label {
  display: inline-flex;
  width: fit-content;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dataset-tool-inspector h4 {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: 1.9rem;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.dataset-tool-inspector p {
  margin: 0;
}

.dataset-metric-list {
  display: grid;
  gap: 10px;
}

.dataset-tool-shell-event .dataset-metric-list {
  grid-column: 2;
  grid-row: 1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
}

.dataset-metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(244, 249, 253, 0.92);
  border: 1px solid rgba(16, 34, 53, 0.07);
  min-height: 56px;
}

.dataset-metric-row span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.dataset-metric-row strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.92rem;
  text-align: right;
}

.dataset-summary-chips {
  display: grid;
  gap: 10px;
}

.dataset-tool-shell-event .dataset-summary-chips {
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 4px;
}

.dataset-summary-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  background: rgba(255, 255, 255, 0.78);
}

.dataset-summary-chip.is-active {
  background: rgba(109, 181, 255, 0.14);
  border-color: rgba(37, 90, 140, 0.16);
}

.dataset-summary-chip strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.9rem;
  text-align: right;
}

.dataset-summary-chip span {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.dataset-tool-shell-event .dataset-summary-chip {
  min-height: 72px;
}

.dataset-tool-shell-trajectory .dataset-tool-inspector {
  grid-template-columns: 1fr;
  align-items: start;
  gap: 16px;
  align-self: stretch;
}

.dataset-tool-shell-trajectory .dataset-inspector-block {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 8px 4px 0 2px;
}

.dataset-tool-shell-trajectory .dataset-metric-list {
  grid-template-columns: 1fr;
}

.dataset-tool-shell-trajectory .trajectory-hotspots {
  display: grid;
  gap: 10px;
  margin-top: 4px;
}

.trajectory-stage-shell {
  display: grid;
  gap: 12px;
  align-content: start;
}

.trajectory-pitch {
  width: 100%;
  height: auto;
  aspect-ratio: 105 / 68;
  border-radius: 20px;
  background:
    linear-gradient(180deg, #f9fcff, #eff6fb);
  box-shadow: inset 0 0 0 1px rgba(16, 34, 53, 0.06);
}

.trajectory-pitch-base {
  fill: none;
  stroke: rgba(19, 58, 92, 0.22);
  stroke-width: 0.42;
}

.trajectory-pitch-mark {
  fill: none;
  stroke: rgba(19, 58, 92, 0.18);
  stroke-width: 0.36;
}

.trajectory-cell {
  cursor: pointer;
  transition: opacity var(--transition), stroke var(--transition), stroke-width var(--transition);
}

.trajectory-cell.is-active {
  stroke: rgba(8, 26, 40, 0.72);
  stroke-width: 0.55;
}

.trajectory-cell.is-dimmed,
.trajectory-point.is-dimmed {
  opacity: 0.18;
}

.trajectory-point {
  fill: rgba(16, 34, 53, 0.55);
  transition: opacity var(--transition), r var(--transition);
}

.trajectory-point.is-active-zone {
  fill: rgba(37, 90, 140, 0.78);
}

.trajectory-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.trajectory-legend-ramp {
  width: 120px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(109, 181, 255, 0.12), rgba(37, 90, 140, 0.78));
}

.trajectory-hotspot-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.trajectory-hotspot-button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 12px;
  align-items: center;
  padding: 11px 13px;
  border: 1px solid rgba(16, 34, 53, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  color: inherit;
  cursor: pointer;
  text-align: left;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.trajectory-hotspot-button:hover,
.trajectory-hotspot-button.is-active {
  transform: translateY(-1px);
  background: rgba(109, 181, 255, 0.12);
  border-color: rgba(37, 90, 140, 0.16);
}

.trajectory-hotspot-button strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.88rem;
}

.trajectory-hotspot-button span {
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.dataset-footnote {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.dataset-footnote p {
  margin: 0;
}

.dataset-footnote-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(37, 90, 140, 0.08);
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 176px;
  padding: 24px 20px;
  border-color: rgba(37, 90, 140, 0.1);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.16), transparent 36%),
    radial-gradient(circle at bottom left, rgba(143, 212, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(238, 245, 252, 0.98));
  text-align: center;
  box-shadow: 0 18px 38px rgba(14, 24, 18, 0.07);
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #6db5ff 0%, #8fd4ff 50%, #d9efff 100%);
}

.stat-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-card strong {
  display: block;
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: clamp(2.1rem, 3vw, 2.7rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.stat-caption {
  max-width: 18ch;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.4;
}

.result-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 18px;
}

.result-copy {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(239, 246, 252, 0.97));
  box-shadow: 0 18px 38px rgba(14, 24, 18, 0.06);
}

.result-copy::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, rgba(109, 181, 255, 0.95), rgba(143, 212, 255, 0.9));
}

.result-eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-copy h3 {
  margin-bottom: 0;
  font-size: 1.6rem;
}

.result-lead {
  font-size: 1.02rem;
  line-height: 1.7;
}

.scaling-copy {
  gap: 14px;
}

.human-copy {
  gap: 14px;
}

.result-columns .result-lead {
  min-height: 4.9em;
}

.scaling-figure {
  display: grid;
  gap: 12px;
  margin-top: -4px;
  padding: 10px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(246, 250, 255, 0.98), rgba(232, 241, 250, 0.94));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 16px 30px rgba(14, 24, 18, 0.05);
}

.scaling-figure img {
  width: 100%;
  aspect-ratio: 3 / 1;
  object-fit: fill;
  object-position: center;
  border-radius: 16px;
  box-shadow: 0 12px 26px rgba(14, 24, 18, 0.08);
}

.scaling-figure figcaption {
  display: grid;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.55;
}

.scaling-figure-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.1);
  font-family: "Sora", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.human-figure {
  display: grid;
  gap: 12px;
  margin-top: -4px;
  padding: 10px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(246, 250, 255, 0.98), rgba(232, 241, 250, 0.94));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 16px 30px rgba(14, 24, 18, 0.05);
}

.human-figure img {
  width: 100%;
  aspect-ratio: 3 / 1;
  object-fit: fill;
  object-position: center;
  border-radius: 16px;
  box-shadow: 0 12px 26px rgba(14, 24, 18, 0.08);
}

.human-figure figcaption {
  display: grid;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.55;
}

.result-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-point {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 14px 12px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.58);
}

.result-point strong {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.result-point span {
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.55;
}

.result-copy p + p,
.abstract-card p + p {
  margin-top: 14px;
}

.results-subsection {
  display: grid;
  gap: 10px;
  max-width: 920px;
  margin: 30px 0 22px;
}

.results-subsection-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.results-subsection h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.results-subsection p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.visual-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.visual-card,
.media-card {
  padding: 14px;
}

.visual-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(239, 246, 252, 0.97));
}

.visual-card img,
.media-card img {
  aspect-ratio: 1.35 / 1;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
}

.visual-card img {
  height: auto;
}

.visual-card figcaption,
.media-card figcaption {
  margin-top: 12px;
  font-size: 0.94rem;
}

.visual-card figcaption {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 8px;
  min-height: 128px;
  margin-top: 0;
  line-height: 1.55;
}

.visual-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.media-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.event-intro-card {
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(237, 244, 251, 0.97));
  box-shadow: var(--shadow-sm);
}

.event-intro-copy {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.event-intro-copy h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.32rem;
  line-height: 1.16;
}

.event-intro-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.65;
}

.inline-red {
  color: #d94b4b;
}

.inline-blue {
  color: #3f74d8;
}

.inline-green {
  color: #2f9e44;
}

.inline-yellow {
  color: #e3b93f;
}

.event-frame-shell {
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  background:
    linear-gradient(180deg, rgba(246, 250, 255, 0.98), rgba(232, 241, 250, 0.94));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 12px 26px rgba(14, 24, 18, 0.06);
}

.event-frame {
  display: block;
  width: 100%;
  height: 720px;
  border: 0;
  background: #f4f8fc;
}

.video-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(237, 244, 251, 0.97));
  box-shadow: var(--shadow-sm);
}

.video-player {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  border-radius: 16px;
  object-fit: contain;
  overflow: hidden;
  background: transparent;
  box-shadow: var(--shadow-sm);
}

.video-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.video-ref {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.video-meta h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.2;
}

.video-meta p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.realism-quiz-shell {
  display: grid;
  gap: 20px;
  padding: 22px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.14), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(234, 243, 251, 0.98));
  box-shadow: var(--shadow-md);
}

.realism-task-banner {
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: none;
  padding: 24px 28px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.16), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(237, 245, 252, 0.98));
  box-shadow: var(--shadow-sm);
}

.realism-task-label {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.realism-task-banner h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.5vw, 1.9rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.realism-task-banner p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.12rem;
  line-height: 1.72;
}

.realism-overview-trigger {
  display: grid;
  gap: 8px;
  width: min(760px, 100%);
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(37, 90, 140, 0.16);
  border-radius: 24px;
  color: var(--green-strong);
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 242, 252, 0.98));
  text-align: left;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.realism-overview-trigger:hover {
  transform: translateY(-3px);
  border-color: rgba(37, 90, 140, 0.24);
  box-shadow: var(--shadow-md);
}

.realism-overview-trigger strong {
  color: var(--ink);
  font-family: "Sora", sans-serif;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.3;
}

.realism-overview-eyebrow {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.realism-overview-hint {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.5;
}

.realism-quiz-head {
  display: block;
}

.realism-quiz-progress {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.realism-nav-buttons {
  display: flex;
  gap: 12px;
  width: 100%;
}

.realism-nav-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  padding: 11px 16px;
  border: 1px solid rgba(37, 90, 140, 0.14);
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.78);
  font-family: "Sora", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.realism-nav-button:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(37, 90, 140, 0.24);
}

.realism-nav-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.realism-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 100%;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.realism-carousel::-webkit-scrollbar {
  display: none;
}

.realism-card {
  scroll-snap-align: start;
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(300px, 0.72fr);
  gap: 24px;
  padding: 20px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 247, 252, 0.98));
  box-shadow: var(--shadow-sm);
}

.realism-card-media {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  height: 100%;
  padding: 16px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.1), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(235, 243, 250, 0.92));
}

.realism-video {
  width: 100%;
  max-height: none;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: transparent;
  border-radius: 22px;
}

.realism-card-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: flex-start;
  min-height: 100%;
  padding: 22px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(235, 243, 250, 0.92));
  overflow: hidden;
}

.realism-card-panel {
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(37, 90, 140, 0.12);
}

.realism-quiz-controls {
  display: grid;
  gap: 16px;
}

.realism-card-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.realism-card-tag,
.realism-card-meta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.realism-card-meta {
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(37, 90, 140, 0.08);
}

.realism-card-prompt {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.45;
}

.realism-answer-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: auto;
  position: relative;
  z-index: 1;
  transition: opacity var(--transition), transform var(--transition), filter var(--transition);
}

.realism-card[data-answered="true"] .realism-answer-row {
  opacity: 0.18;
  transform: scale(0.985);
  filter: blur(1px);
}

.realism-answer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 54px;
  padding: 14px 18px;
  border: 1px solid rgba(37, 90, 140, 0.14);
  border-radius: 18px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.84);
  font-family: "Sora", sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.realism-answer-button:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(37, 90, 140, 0.24);
}

.realism-answer-button:disabled {
  cursor: default;
}

.realism-answer-button.is-selected {
  border-color: rgba(37, 90, 140, 0.28);
  background: rgba(37, 90, 140, 0.1);
}

.realism-answer-button.is-correct {
  color: #1d6b32;
  border-color: rgba(47, 158, 68, 0.36);
  background: linear-gradient(180deg, rgba(47, 158, 68, 0.14), rgba(47, 158, 68, 0.08));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.realism-answer-button.is-wrong {
  color: #b54545;
  border-color: rgba(217, 75, 75, 0.34);
  background: linear-gradient(180deg, rgba(217, 75, 75, 0.12), rgba(217, 75, 75, 0.06));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.realism-feedback {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
  z-index: 3;
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 20px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(239, 246, 252, 0.95));
  box-shadow:
    0 18px 42px rgba(12, 29, 48, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  transition: opacity var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
}

.realism-feedback[hidden] {
  display: grid;
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.realism-feedback.is-visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.realism-feedback-status {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  color: var(--ink);
  font-family: "Sora", sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.3;
}

.realism-feedback-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.realism-feedback-body {
  display: grid;
  gap: 8px;
}

.realism-feedback-row {
  display: grid;
  gap: 2px;
}

.realism-feedback-label {
  color: var(--ink-mute);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.realism-feedback-value {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
}

.realism-feedback.is-correct {
  background: linear-gradient(180deg, rgba(47, 158, 68, 0.12), rgba(240, 249, 242, 0.95));
  border-color: rgba(47, 158, 68, 0.22);
}

.realism-feedback.is-correct .realism-feedback-status {
  color: #1d6b32;
}

.realism-feedback.is-correct .realism-feedback-badge {
  color: #1d6b32;
  background: rgba(47, 158, 68, 0.14);
}

.realism-feedback.is-wrong {
  background: linear-gradient(180deg, rgba(217, 75, 75, 0.1), rgba(253, 244, 244, 0.96));
  border-color: rgba(217, 75, 75, 0.18);
}

.realism-feedback.is-wrong .realism-feedback-status {
  color: #9a4343;
}

.realism-feedback.is-wrong .realism-feedback-badge {
  color: #9a4343;
  background: rgba(217, 75, 75, 0.14);
}

.realism-overview-modal[hidden] {
  display: none;
}

.realism-overview-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
}

.realism-overview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 27, 42, 0.52);
  backdrop-filter: blur(8px);
}

.realism-overview-panel {
  position: relative;
  z-index: 1;
  width: min(900px, 100%);
  max-height: min(88vh, 920px);
  overflow: auto;
  padding: 28px 28px 24px;
  border: 1px solid rgba(37, 90, 140, 0.14);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.16), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(236, 244, 252, 0.99));
  box-shadow: 0 34px 90px rgba(12, 29, 48, 0.22);
}

.realism-overview-close {
  position: sticky;
  top: 0;
  float: right;
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 50%;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.9);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.realism-overview-copy {
  display: grid;
  gap: 14px;
  color: var(--ink-soft);
}

.realism-overview-copy h2,
.realism-overview-copy h3 {
  margin: 0;
  color: var(--ink);
}

.realism-overview-copy h2 {
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.realism-overview-copy h3 {
  margin-top: 4px;
  font-size: 1.08rem;
}

.realism-overview-copy p,
.realism-overview-copy li {
  font-size: 1rem;
  line-height: 1.75;
}

.realism-overview-copy ol,
.realism-overview-copy ul {
  margin: 0;
  padding-left: 1.3rem;
}

.realism-overview-copy a {
  color: var(--green-strong);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.utility-quiz-shell {
  display: grid;
  gap: 20px;
  padding: 22px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.14), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(234, 243, 251, 0.98));
  box-shadow: var(--shadow-md);
}

.utility-task-banner p {
  max-width: 84ch;
}

.utility-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 100%;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.utility-carousel::-webkit-scrollbar {
  display: none;
}

.utility-card {
  scroll-snap-align: start;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 18px;
  border: 1px solid rgba(18, 32, 24, 0.08);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 247, 252, 0.98));
  box-shadow: var(--shadow-sm);
}

.utility-card-media {
  display: flex;
  align-items: stretch;
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.1), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(235, 243, 250, 0.92));
}

.utility-video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  width: 100%;
}

.utility-video-panel {
  display: grid;
  gap: 12px;
  min-width: 0;
  margin: 0;
}

.utility-side-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
  font-family: "Sora", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-video {
  width: 100%;
  height: auto;
  background: transparent;
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(12, 29, 48, 0.14);
}

.utility-card-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: auto;
  padding: 18px 20px 16px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(109, 181, 255, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(235, 243, 250, 0.92));
  order: -1;
}

.utility-card-panel {
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(37, 90, 140, 0.12);
}

.utility-quiz-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.utility-quiz-progress {
  color: var(--green-strong);
  font-family: "Sora", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.utility-nav-buttons {
  display: flex;
  gap: 12px;
  width: min(100%, 320px);
}

.utility-nav-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  padding: 11px 16px;
  border: 1px solid rgba(37, 90, 140, 0.14);
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.78);
  font-family: "Sora", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.utility-nav-button:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(37, 90, 140, 0.24);
}

.utility-nav-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.utility-card-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.utility-card-tag,
.utility-card-meta,
.utility-card-event {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  font-family: "Sora", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-card-tag {
  color: var(--green-strong);
  background: rgba(37, 90, 140, 0.08);
}

.utility-card-meta {
  border: 1px solid rgba(37, 90, 140, 0.08);
}

.utility-card-meta-att {
  color: #a43f3f;
  background: rgba(217, 75, 75, 0.08);
}

.utility-card-meta-def {
  color: #3153a5;
  background: rgba(63, 116, 216, 0.08);
}

.utility-card-event {
  display: none;
}

.utility-card-prompt {
  margin: 0;
  color: var(--ink);
  font-size: 1.14rem;
  font-weight: 600;
  line-height: 1.35;
  max-width: 42rem;
}

.utility-prompt-team {
  font-weight: 700;
}

.utility-prompt-team-att {
  color: #b54545;
}

.utility-prompt-team-def {
  color: #3153a5;
}

.utility-answer-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 2px;
  position: relative;
  z-index: 1;
  transition: opacity var(--transition), transform var(--transition), filter var(--transition);
}

.utility-card[data-answered="true"] .utility-answer-row {
  opacity: 0.18;
  transform: scale(0.985);
  filter: blur(1px);
}

.utility-answer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  padding: 11px 16px;
  border: 1px solid rgba(37, 90, 140, 0.14);
  border-radius: 18px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.84);
  font-family: "Sora", sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.utility-answer-button:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(37, 90, 140, 0.24);
}

.utility-answer-button:disabled {
  cursor: default;
}

.utility-answer-button.is-selected {
  border-color: rgba(37, 90, 140, 0.28);
  background: rgba(37, 90, 140, 0.1);
}

.utility-answer-button.is-correct {
  color: #1d6b32;
  border-color: rgba(47, 158, 68, 0.36);
  background: linear-gradient(180deg, rgba(47, 158, 68, 0.14), rgba(47, 158, 68, 0.08));
}

.utility-answer-button.is-wrong {
  color: #b54545;
  border-color: rgba(217, 75, 75, 0.34);
  background: linear-gradient(180deg, rgba(217, 75, 75, 0.12), rgba(217, 75, 75, 0.06));
}

.utility-feedback {
  position: absolute;
  right: 20px;
  bottom: 5px;
  left: 20px;
  z-index: 4;
  display: grid;
  gap: 7px;
  margin-top: 0;
  min-height: 108px;
  padding: 11px 14px;
  border-radius: 16px;
  border: 1px solid rgba(37, 90, 140, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 252, 0.98));
  box-shadow:
    0 18px 42px rgba(12, 29, 48, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  transition: opacity var(--transition), transform var(--transition);
}

.utility-feedback[hidden] {
  display: none;
}

.utility-feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.utility-feedback-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--ink);
  font-family: "Sora", sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.3;
}

.utility-feedback-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-feedback-body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.utility-feedback-row {
  display: grid;
  gap: 1px;
}

.utility-feedback-label {
  color: var(--ink-mute);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-feedback-value {
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.3;
}

.utility-feedback.is-correct {
  background: linear-gradient(180deg, rgba(47, 158, 68, 0.12), rgba(240, 249, 242, 0.95));
  border-color: rgba(47, 158, 68, 0.22);
}

.utility-feedback.is-correct .utility-feedback-status {
  color: #1d6b32;
}

.utility-feedback.is-correct .utility-feedback-badge {
  color: #1d6b32;
  background: rgba(47, 158, 68, 0.14);
}

.utility-feedback.is-wrong {
  background: linear-gradient(180deg, rgba(217, 75, 75, 0.1), rgba(253, 244, 244, 0.96));
  border-color: rgba(217, 75, 75, 0.18);
}

.utility-feedback.is-wrong .utility-feedback-status {
  color: #9a4343;
}

.utility-feedback.is-wrong .utility-feedback-badge {
  color: #9a4343;
  background: rgba(217, 75, 75, 0.14);
}

.section-dark .media-card,
.section-dark .event-intro-card,
.section-dark .video-card,
.section-dark .placeholder-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(237, 244, 251, 0.97));
  border-color: rgba(18, 32, 24, 0.08);
  box-shadow: var(--shadow-sm);
}

.section-dark .event-intro-copy p,
.section-dark .media-card figcaption,
.section-dark .video-meta p,
.section-dark .placeholder-card p {
  color: var(--ink-soft);
}

.section-dark .event-intro-copy h3,
.section-dark .video-meta h3,
.section-dark .placeholder-card h3 {
  color: var(--ink);
}

.placeholder-label {
  color: var(--green-bright);
}

.paper-layout {
  display: grid;
  gap: 18px;
}

.abstract-card {
  margin-top: -25px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 252, 0.97));
  max-width: 980px;
}

.bibtex-card {
  background:
    linear-gradient(180deg, rgba(242, 248, 253, 0.98), rgba(229, 239, 249, 0.98));
  border-color: rgba(68, 120, 170, 0.12);
  color: var(--green-strong);
  box-shadow: var(--shadow-md);
  max-width: 980px;
}

.bibtex-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.copy-bibtex-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(37, 90, 140, 0.12);
  border-radius: 999px;
  color: var(--green-strong);
  background: rgba(255, 255, 255, 0.56);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.copy-bibtex-btn:hover {
  background: rgba(255, 255, 255, 0.92);
}

.copy-bibtex-btn.copied {
  background: rgba(109, 181, 255, 0.22);
}

#bibtex-code {
  margin: 0;
  padding: 22px;
  overflow-x: auto;
  border-radius: 20px;
  background: rgba(82, 135, 186, 0.1);
  color: #18324f;
  font-size: 0.95rem;
  line-height: 1.65;
}

.paper-link-muted {
  color: var(--green-strong);
  background: linear-gradient(180deg, rgba(37, 90, 140, 0.1), rgba(37, 90, 140, 0.05));
  border-color: rgba(37, 90, 140, 0.12);
  box-shadow: none;
}

.site-footer {
  padding: 26px 0 40px;
  color: var(--ink-mute);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.scroll-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  color: #f5fbf0;
  background: rgba(13, 27, 20, 0.9);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  background: var(--green);
}

body.js-enhanced .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 560ms ease, transform 560ms ease;
}

body.js-enhanced .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .card-grid-four,
  .method-layout,
  .mode-layout,
  .feature-grid,
  .stat-grid,
  .dataset-stat-grid,
  .visual-grid-three,
  .media-grid,
  .video-grid,
  .result-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dataset-overview,
  .dataset-detail-grid,
  .dataset-reserve-grid {
    grid-template-columns: 1fr;
  }

  .dataset-hero-band {
    grid-template-columns: 1fr;
  }

  .dataset-field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dataset-tool-body-event,
  .dataset-tool-body-trajectory {
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-event .dataset-tool-inspector {
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-trajectory .dataset-tool-inspector {
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-trajectory .dataset-inspector-block {
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-event .dataset-metric-list {
    grid-column: auto;
    grid-row: auto;
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-trajectory .dataset-metric-list {
    grid-column: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dataset-tool-shell-event .dataset-summary-chips {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .dataset-tool-shell-trajectory .trajectory-hotspots {
    grid-column: auto;
  }

  .trajectory-hotspot-list {
    grid-template-columns: 1fr;
  }

  .realism-card {
    grid-template-columns: 1fr;
  }

  .utility-quiz-controls {
    align-items: flex-start;
  }

  .utility-nav-buttons {
    width: 100%;
  }
}

@media (max-width: 820px) {
  .site-header {
    position: static;
  }

  .header-inner {
    flex-direction: column;
    justify-content: center;
    padding: 14px 0;
  }

  .realism-quiz-head {
    display: block;
  }

  .realism-task-banner,
  .realism-quiz-controls {
    max-width: none;
  }

  .utility-card-copy,
  .utility-card-media {
    padding: 18px;
  }

  .utility-quiz-controls {
    flex-direction: column;
  }

  .utility-video-grid {
    grid-template-columns: 1fr;
  }

  .utility-feedback {
    position: static;
    margin-top: 2px;
  }

  .utility-feedback-body {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .realism-overview-panel {
    padding: 22px 20px 20px;
  }

  .realism-quiz-controls {
    align-items: flex-start;
  }

  .hero-section {
    padding-top: 56px;
  }

  .metric-strip,
  .card-grid-four,
  .method-layout,
  .mode-layout,
  .feature-grid,
  .stat-grid,
  .dataset-stat-grid,
  .visual-grid-three,
  .media-grid,
  .video-grid,
  .result-columns {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-visual,
  .info-card,
  .method-card,
  .mode-card,
  .feature-card,
  .stat-card,
  .dataset-hero-card,
  .dataset-side-card,
  .dataset-card,
  .dataset-stat-card,
  .dataset-reserve-card,
  .visual-card,
  .media-card,
  .event-intro-card,
  .video-card,
  .placeholder-card,
  .abstract-card,
  .bibtex-card {
    padding: 20px;
  }

  .info-card::before,
  .method-card::before,
  .feature-card::before,
  .placeholder-card::before {
    margin-top: -20px;
  }

  .section-shell {
    padding: 72px 0;
  }

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

  .event-frame {
    height: 520px;
  }

  .realism-video {
    max-height: 300px;
  }

  .result-columns .result-lead {
    min-height: auto;
  }

  .scaling-figure {
    padding: 8px;
    border-radius: 18px;
  }

  .human-figure {
    padding: 8px;
    border-radius: 18px;
  }

  .scaling-figure img,
  .human-figure img {
    border-radius: 14px;
  }

  .method-group-intro {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .dataset-field-grid {
    grid-template-columns: 1fr;
  }

  .dataset-tool-toolbar,
  .dataset-tool-meta,
  .dataset-range-control {
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .dataset-range-control {
    display: grid;
  }

  .dataset-toggle-group {
    width: 100%;
  }

  .dataset-toolbar-side,
  .dataset-color-legend {
    justify-items: start;
    justify-content: flex-start;
  }

  .dataset-toolbar-note {
    text-align: left;
  }

  .dataset-toggle-button {
    flex: 1 1 auto;
  }

  .event-chart {
    min-height: 280px;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .event-bar {
    min-width: 58px;
  }

  .dataset-footnote {
    flex-direction: column;
  }

  .trajectory-legend {
    justify-content: flex-start;
  }

  .story-figure-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-icon {
    width: 76px;
    height: 76px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(1180px, calc(100vw - 24px));
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .author-line {
    gap: 8px 12px;
    font-size: 0.95rem;
  }

  .hero-panel-grid {
    grid-template-columns: 1fr;
  }

  .story-figure-meta {
    padding: 18px 20px 20px;
  }

  .realism-quiz-shell,
  .realism-card {
    padding: 16px;
  }

  .realism-overview-trigger {
    padding: 16px;
    border-radius: 20px;
  }

  .realism-feedback {
    right: 16px;
    bottom: 16px;
    left: 16px;
  }

  .realism-nav-buttons,
  .realism-answer-row,
  .utility-nav-buttons,
  .utility-answer-row {
    width: 100%;
  }

  .realism-nav-button,
  .realism-answer-button,
  .utility-nav-button,
  .utility-answer-button {
    flex: 1 1 0;
    min-width: 0;
  }

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

  .story-figure-image {
    width: calc(100% - 24px);
    margin-top: 12px;
    border-radius: 18px;
  }

  .site-nav {
    justify-content: center;
  }

  .hero-actions,
  .paper-links {
    flex-direction: column;
  }

  .hero-resource-nav {
    width: 100%;
    grid-template-columns: 1fr;
  }

  .hero-actions {
    width: 100%;
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
  }

  .resource-link {
    padding: 12px;
  }

  .button,
  .copy-bibtex-btn {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
  }
}