@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================
   Agent-AI4Sci-Bench — Consolidated Stylesheet
   Apex brand identity: warm paper (#F6F6F4) + near-black (#1A1A1A)
   + blue-gray accent (#49759c), Inter body / EB Garamond display.
   ============================================================ */

/* --- Design tokens (Apex — warm paper + near-black + blue-gray) --- */
:root {
  --ai4sci-ink: #1a1a1a;
  --ai4sci-muted: #5a5a56;
  --ai4sci-line: rgba(26, 26, 26, 0.1);
  --ai4sci-surface: rgba(255, 255, 255, 0.78);
  --ai4sci-accent: #49759c;
  --ai4sci-deep: #1a1a1a;
  --ai4sci-soft: #f0f0ec;
  --ai4sci-panel: rgba(255, 255, 255, 0.84);
  --ai4sci-teal: #7d9bb5;
  --ai4sci-radius-sm: 0.58rem;
  --ai4sci-radius-md: 0.85rem;
  --ai4sci-radius-lg: 1.2rem;

  /* Light-mode Material chrome -> Apex identity (links, header accent, code) */
  --md-primary-fg-color: #1a1a1a;
  --md-primary-bg-color: #f6f6f4;
  --md-accent-fg-color: #49759c;
  --md-typeset-a-color: #3d6485;
  --md-code-hl-color: rgba(73, 117, 156, 0.14);
  /* Inner-page footer -> warm near-black, matching the brand dark elements
     instead of Material's default cool slate bar. */
  --md-footer-bg-color: #1a1a1a;
  --md-footer-bg-color--dark: #121210;
}

/* Warm-paper canvas + Inter/EB Garamond typography */
body {
  background-color: #f6f6f4;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.md-typeset h1,
.md-typeset h2,
.ai4sci-showcase-copy h1,
.ai4sci-section-heading h2,
.ai4sci-split-section h2 {
  font-family: "EB Garamond", "Inter", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* --- Dark-mode design tokens + Material variable overrides --- */
[data-md-color-scheme="slate"] {
  --ai4sci-ink: #f6f6f4;
  --ai4sci-muted: #b5b5ae;
  --ai4sci-line: rgba(246, 246, 244, 0.12);
  --ai4sci-surface: #1f1f1c;
  --ai4sci-accent: #7ba0c4;
  --ai4sci-deep: #161614;
  --ai4sci-soft: #1f1f1c;
  --ai4sci-panel: #1f1f1c;
  --ai4sci-teal: #a9c3da;

  --md-default-bg-color: #161614;
  --md-default-bg-color--light: rgba(26, 26, 26, 0.54);
  --md-default-bg-color--lighter: rgba(26, 26, 26, 0.26);
  --md-default-bg-color--lightest: rgba(26, 26, 26, 0.07);
  --md-default-fg-color: #f6f6f4;
  --md-default-fg-color--light: #b5b5ae;
  --md-default-fg-color--lighter: rgba(246, 246, 244, 0.32);
  --md-default-fg-color--lightest: rgba(246, 246, 244, 0.12);
  --md-primary-fg-color: #7ba0c4;
  --md-primary-bg-color: #161614;
  --md-accent-fg-color: #a9c3da;
  --md-typeset-color: #f6f6f4;
  --md-typeset-a-color: #a9c3da;
  --md-code-bg-color: #1f1f1c;
  --md-code-fg-color: #f6f6f4;
  --md-code-hl-color: rgba(125, 156, 189, 0.15);
  --md-footer-bg-color: rgba(26, 26, 26, 0.92);
  --md-footer-bg-color--dark: #121210;
}

/* --- Dark-mode homepage root --- */
[data-md-color-scheme="slate"] .ai4sci-home-root {
  background:
    radial-gradient(circle at 82% 12%, rgba(73, 117, 156, 0.15), transparent 24rem),
    radial-gradient(circle at 12% 18%, rgba(73, 117, 156, 0.12), transparent 25rem),
    linear-gradient(180deg, #161614 0%, #1c1c19 45%, #1f1f1c 100%);
}

[data-md-color-scheme="slate"] .ai4sci-floating-links a { color: rgba(246, 246, 244, 0.64); }
[data-md-color-scheme="slate"] .ai4sci-floating-links a:hover { color: var(--ai4sci-ink); }

[data-md-color-scheme="slate"] .ai4sci-showcase-hero {
  border-color: rgba(246, 246, 244, 0.08);
  background:
    linear-gradient(135deg, rgba(30, 41, 59, 0.92), rgba(26, 26, 26, 0.88)),
    radial-gradient(circle at 70% 30%, rgba(73, 117, 156, 0.1), transparent 22rem);
}

[data-md-color-scheme="slate"] .ai4sci-showcase-copy h1 { color: #f6f6f4; }
[data-md-color-scheme="slate"] .ai4sci-modern-subtitle { color: #cfcfc9; }
[data-md-color-scheme="slate"] .ai4sci-showcase-copy .ai4sci-kicker { color: var(--ai4sci-teal); }

[data-md-color-scheme="slate"] .ai4sci-action-primary {
  background: var(--ai4sci-accent);
  color: #161614;
  border-color: var(--ai4sci-accent);
}
[data-md-color-scheme="slate"] .ai4sci-modern-actions a:not(.ai4sci-action-primary) {
  color: #f6f6f4;
  border-color: rgba(246, 246, 244, 0.22);
  background: rgba(246, 246, 244, 0.08);
}
[data-md-color-scheme="slate"] .ai4sci-modern-actions a:not(.ai4sci-action-primary):hover {
  background: rgba(246, 246, 244, 0.14);
  border-color: rgba(246, 246, 244, 0.32);
}

[data-md-color-scheme="slate"] .ai4sci-board-windowbar {
  border-color: rgba(246, 246, 244, 0.1);
}
[data-md-color-scheme="slate"] .ai4sci-board-title strong { color: #f6f6f4; }
[data-md-color-scheme="slate"] .ai4sci-board-badge {
  border-color: rgba(246, 246, 244, 0.12);
  background: rgba(246, 246, 244, 0.08);
  color: rgba(246, 246, 244, 0.6);
}
[data-md-color-scheme="slate"] .ai4sci-showcase-board {
  border-color: rgba(246, 246, 244, 0.1);
  background:
    linear-gradient(180deg, rgba(26, 26, 26, 0.92), rgba(28, 28, 25, 0.88)),
    radial-gradient(circle at 100% 0%, rgba(73, 117, 156, 0.12), transparent 16rem);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.3);
}
[data-md-color-scheme="slate"] .ai4sci-board-card {
  border-color: rgba(246, 246, 244, 0.1);
  background: rgba(30, 41, 59, 0.7);
  box-shadow: inset 0 1px 0 rgba(246, 246, 244, 0.06);
}
[data-md-color-scheme="slate"] .ai4sci-board-card p { color: rgba(246, 246, 244, 0.5); }
[data-md-color-scheme="slate"] .ai4sci-board-card-score strong { color: #eeeee9; }
[data-md-color-scheme="slate"] .ai4sci-board-card-score span { color: #b5b5ae; }
[data-md-color-scheme="slate"] .ai4sci-board-card-ladder div { color: rgba(246, 246, 244, 0.6); }
[data-md-color-scheme="slate"] .ai4sci-domain-cloud span {
  border-color: rgba(246, 246, 244, 0.1);
  background: rgba(246, 246, 244, 0.08);
  color: rgba(246, 246, 244, 0.7);
}
[data-md-color-scheme="slate"] .ai4sci-board-tabs {
  border-color: rgba(246, 246, 244, 0.08);
  background: rgba(0, 0, 0, 0.25);
}
[data-md-color-scheme="slate"] .ai4sci-board-tabs button { color: rgba(246, 246, 244, 0.5); }
[data-md-color-scheme="slate"] .ai4sci-board-tabs button.is-active {
  color: var(--ai4sci-teal);
  background: rgba(125, 156, 189, 0.1);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
[data-md-color-scheme="slate"] .ai4sci-pipeline-steps button {
  border-color: rgba(246, 246, 244, 0.12);
  background: rgba(30, 41, 59, 0.6);
  color: #b5b5ae;
}
[data-md-color-scheme="slate"] .ai4sci-pipeline-steps button.is-active {
  background: var(--ai4sci-accent);
  color: #161614;
  border-color: var(--ai4sci-accent);
}
[data-md-color-scheme="slate"] .ai4sci-workflow-note {
  border-color: rgba(246, 246, 244, 0.08);
  background: rgba(30, 41, 59, 0.5);
}
[data-md-color-scheme="slate"] .ai4sci-workflow-note strong { color: #f6f6f4; }
[data-md-color-scheme="slate"] .ai4sci-workflow-note span { color: #b5b5ae; }

/* Dark-mode metric strip */
[data-md-color-scheme="slate"] .ai4sci-showcase-metrics .ai4sci-metric {
  border-color: rgba(246, 246, 244, 0.08);
  background: rgba(30, 41, 59, 0.6);
}
[data-md-color-scheme="slate"] .ai4sci-showcase-metrics .ai4sci-metric span { color: rgba(246, 246, 244, 0.5); }
[data-md-color-scheme="slate"] .ai4sci-showcase-metrics .ai4sci-metric strong { color: #f6f6f4; }

[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard {
  border-color: rgba(246, 246, 244, 0.1);
  background:
    linear-gradient(135deg, rgba(28, 28, 25, 0.92), rgba(26, 26, 26, 0.88)),
    radial-gradient(circle at 92% 0%, rgba(73, 117, 156, 0.1), transparent 15rem);
  box-shadow:
    0 18px 48px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(246, 246, 244, 0.06);
}
[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard-head { border-color: rgba(246, 246, 244, 0.1); }
[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard-head strong { color: #f6f6f4; }
[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard-head span:last-child {
  color: rgba(246, 246, 244, 0.6);
  background: rgba(246, 246, 244, 0.08);
  border-color: rgba(246, 246, 244, 0.12);
}
[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard-head div { color: #f6f6f4; }
[data-md-color-scheme="slate"] .ai4sci-hero-scoreboard-loading { color: rgba(246, 246, 244, 0.5); }
[data-md-color-scheme="slate"] .ai4sci-hero-score-card {
  border-color: rgba(246, 246, 244, 0.1);
  background: rgba(30, 41, 59, 0.65);
  box-shadow: inset 0 1px 0 rgba(246, 246, 244, 0.06);
}
[data-md-color-scheme="slate"] .ai4sci-hero-score-card span { color: rgba(246, 246, 244, 0.5); }
[data-md-color-scheme="slate"] .ai4sci-hero-score-card strong { color: #eeeee9; }
[data-md-color-scheme="slate"] .ai4sci-hero-score-card small { color: rgba(246, 246, 244, 0.45); }
[data-md-color-scheme="slate"] .ai4sci-hero-score-card.is-primary {
  border-color: rgba(125, 156, 189, 0.3);
  background:
    linear-gradient(135deg, rgba(73, 117, 156, 0.2), rgba(26, 26, 26, 0.9)),
    radial-gradient(circle at 88% 16%, rgba(125, 156, 189, 0.15), transparent 12rem);
}
[data-md-color-scheme="slate"] .ai4sci-hero-score-card.is-primary strong { color: #fff; }
[data-md-color-scheme="slate"] .ai4sci-hero-score-card.is-primary span,
[data-md-color-scheme="slate"] .ai4sci-hero-score-card.is-primary small { color: rgba(246, 246, 244, 0.65); }
[data-md-color-scheme="slate"] .ai4sci-hero-blevel-track { background: rgba(246, 246, 244, 0.1); }

/* Dark-mode homepage — only overrides not handled by CSS variables */
[data-md-color-scheme="slate"] .ai4sci-glass-panel.ai4sci-quickstart-panel {
  border-color: rgba(125, 156, 189, 0.18);
  background:
    linear-gradient(135deg, rgba(73, 117, 156, 0.1), var(--ai4sci-soft)),
    radial-gradient(circle at 80% 20%, rgba(73, 117, 156, 0.12), transparent 20rem);
}
[data-md-color-scheme="slate"] .ai4sci-quickstart-num {
  background: rgba(125, 156, 189, 0.2);
  color: var(--ai4sci-teal);
}
[data-md-color-scheme="slate"] .ai4sci-quickstart-code pre {
  background: rgba(0, 0, 0, 0.4);
  color: #f6f6f4;
}
[data-md-color-scheme="slate"] .ai4sci-domain-bar-track { background: rgba(246, 246, 244, 0.08); }
[data-md-color-scheme="slate"] .ai4sci-domain-bar-count { color: var(--ai4sci-muted); }
[data-md-color-scheme="slate"] .ai4sci-stack-index { color: var(--ai4sci-teal); }
[data-md-color-scheme="slate"] .ai4sci-inline-link { color: var(--ai4sci-teal); }
[data-md-color-scheme="slate"] .ai4sci-figure img {
  border-color: rgba(246, 246, 244, 0.08);
  background: var(--ai4sci-soft);
  box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.3);
}
[data-md-color-scheme="slate"] .ai4sci-task-domain-badge {
  background: linear-gradient(135deg, rgba(125, 156, 189, 0.18), rgba(125, 156, 189, 0.08));
  color: var(--ai4sci-teal);
}
[data-md-color-scheme="slate"] .ai4sci-leaderboard-note {
  border-color: rgba(125, 156, 189, 0.15);
  background: rgba(73, 117, 156, 0.08);
}
[data-md-color-scheme="slate"] .ai4sci-lb-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(26, 26, 26, 0.8));
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.2);
}
[data-md-color-scheme="slate"] .ai4sci-lb-card:hover {
  box-shadow: 0 20px 52px rgba(0, 0, 0, 0.35);
}
[data-md-color-scheme="slate"] .ai4sci-lb-rank {
  background: linear-gradient(135deg, var(--ai4sci-accent), rgba(125, 156, 189, 0.8));
  color: #161614;
}
[data-md-color-scheme="slate"] .ai4sci-site-footer {
  background: #121210;
  border-color: rgba(246, 246, 244, 0.06);
}

/* Dark-mode inner page structural overrides */
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) {
  background:
    radial-gradient(circle at 86% 8%, rgba(73, 117, 156, 0.08), transparent 22rem),
    linear-gradient(180deg, #161614 0%, #1c1c19 48%, #1f1f1c 100%);
}
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-header {
  background: rgba(26, 26, 26, 0.92);
  color: #f6f6f4;
  border-bottom-color: rgba(246, 246, 244, 0.08);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.25);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-header__title,
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-header__button,
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-search__input,
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-source {
  color: #f6f6f4;
}
body[data-md-color-scheme="slate"]:not(.ai4sci-home-page) .md-search__form {
  background: rgba(246, 246, 244, 0.08);
}
body[data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__scrollwrap {
  background: #1f1f1c;
}

/* Dark-mode sidebar — only tweaks not handled by variables */
[data-md-color-scheme="slate"] .ai4sci-docs-nav-link.is-active {
  background: rgba(125, 156, 189, 0.14);
}

/* Dark-mode shared components */
[data-md-color-scheme="slate"] .ai4sci-page-intro {
  border-color: rgba(246, 246, 244, 0.08);
  background: rgba(73, 117, 156, 0.08);
}
[data-md-color-scheme="slate"] .ai4sci-empty-state {
  border-color: rgba(246, 246, 244, 0.12);
  background: rgba(246, 246, 244, 0.04);
}
[data-md-color-scheme="slate"] .ai4sci-table th {
  background: rgba(246, 246, 244, 0.05);
}
[data-md-color-scheme="slate"] .ai4sci-table th,
[data-md-color-scheme="slate"] .ai4sci-table td {
  border-color: rgba(246, 246, 244, 0.08);
}
[data-md-color-scheme="slate"] .ai4sci-table tbody tr:hover td {
  background: rgba(125, 156, 189, 0.06);
}
[data-md-color-scheme="slate"] .ai4sci-input,
[data-md-color-scheme="slate"] .ai4sci-select {
  border-color: rgba(246, 246, 244, 0.15);
  background: rgba(30, 41, 59, 0.8);
  color: var(--ai4sci-ink);
}
[data-md-color-scheme="slate"] .ai4sci-tag {
  background: rgba(125, 156, 189, 0.12);
}
[data-md-color-scheme="slate"] .ai4sci-tag-status,
[data-md-color-scheme="slate"] .ai4sci-tag-trust {
  background: rgba(46, 125, 50, 0.18);
}

[data-md-color-scheme="slate"] .ai4sci-leaderboard-view-switch {
  border-color: rgba(246, 246, 244, 0.08);
  background: rgba(26, 26, 26, 0.6);
}
[data-md-color-scheme="slate"] .ai4sci-leaderboard-view-switch a {
  color: rgba(246, 246, 244, 0.6);
}
[data-md-color-scheme="slate"] .ai4sci-leaderboard-view-switch a:hover { color: var(--ai4sci-teal); }
[data-md-color-scheme="slate"] .ai4sci-leaderboard-view-switch a.is-active {
  background: rgba(30, 41, 59, 0.9);
  color: #eeeee9;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

/* --- MkDocs base overrides --- */
.md-grid { max-width: 90rem; }
.md-typeset h1 { margin-bottom: 0.8rem; }
.md-typeset h2 { margin-top: 2rem; }
.md-typeset details { border-radius: 0.8rem; }
.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li { border-radius: 0.9rem; }

/* ============================================================
   HOMEPAGE — full-bleed landing
   ============================================================ */

/* Hide default mkdocs chrome on home */
.ai4sci-home-page .md-header,
.ai4sci-home-page .md-sidebar,
.ai4sci-home-page .md-tabs,
.ai4sci-home-page .md-footer,
.ai4sci-home-page .md-top { display: none; }

.ai4sci-home-page .md-main,
.ai4sci-home-page .md-main__inner,
.ai4sci-home-page .md-content,
.ai4sci-home-page .md-content__inner {
  display: block;
  margin: 0;
  padding: 0;
  max-width: none;
}
.ai4sci-home-page .md-content__inner::before { display: none; }
.ai4sci-home-page .md-typeset { color: var(--ai4sci-ink); }

/* --- Homepage root --- */
.ai4sci-home-root {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  min-height: 100vh;
  min-height: 100dvh; /* iOS Safari: account for the dynamic address bar */
  padding: clamp(1.25rem, 3vw, 2.2rem) clamp(1rem, 5vw, 4.5rem) 5rem;
  overflow: hidden;
  color: var(--ai4sci-ink);
  background:
    radial-gradient(circle at 82% 12%, rgba(73, 117, 156, 0.12), transparent 24rem),
    radial-gradient(circle at 12% 18%, rgba(73, 117, 156, 0.1), transparent 25rem),
    linear-gradient(180deg, #f6f6f4 0%, #fbfbf8 45%, #ffffff 100%);
}

.ai4sci-home-root.ai4sci-landing { max-width: none; }
.ai4sci-home-root > * { position: relative; z-index: 1; }

/* --- Kicker label --- */
.ai4sci-kicker {
  margin: 0 0 0.45rem;
  color: var(--md-accent-fg-color, #3d6485);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* --- Floating nav --- */
.ai4sci-floating-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1360px, 100%);
  min-height: 4.6rem;
  margin: 0 auto clamp(1.4rem, 3vw, 2.4rem);
  padding: 0;
  border: 0;
  background: transparent;
}

.ai4sci-floating-brand,
.ai4sci-floating-links { display: flex; align-items: center; }

.ai4sci-floating-brand {
  gap: 0.7rem;
  flex: 0 0 auto;
  color: var(--ai4sci-ink);
  font-size: 0.95rem;
  font-weight: 780;
  white-space: nowrap;
  text-decoration: none;
  cursor: default;
  user-select: none;
}
.md-typeset .ai4sci-floating-brand,
.md-typeset .ai4sci-floating-brand:visited { color: var(--ai4sci-ink); }
.ai4sci-floating-brand img {
  width: 1.95rem;
  height: 1.95rem;
  border-radius: 0.55rem;
  box-shadow: 0 10px 24px rgba(26, 26, 26, 0.12);
  pointer-events: none;
}

.ai4sci-floating-links { gap: clamp(0.45rem, 1.4vw, 1rem); }
.ai4sci-floating-links a {
  padding: 0.45rem 0.1rem;
  color: rgba(26, 26, 26, 0.64);
  font-size: 0.9rem;
  font-weight: 720;
  text-decoration: none;
}
.ai4sci-floating-links a:hover { color: var(--ai4sci-ink); }

/* --- Theme toggle --- */
.ai4sci-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  padding: 0;
  margin-left: 0.3rem;
  border: 1px solid rgba(26, 26, 26, 0.1);
  border-radius: 0.55rem;
  background: rgba(255, 255, 255, 0.6);
  color: var(--ai4sci-muted);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.ai4sci-theme-toggle:hover {
  background: rgba(73, 117, 156, 0.08);
  color: var(--ai4sci-accent);
  border-color: rgba(73, 117, 156, 0.2);
}
[data-md-color-scheme="slate"] .ai4sci-theme-toggle {
  border-color: rgba(246, 246, 244, 0.12);
  background: rgba(30, 41, 59, 0.6);
  color: var(--ai4sci-muted);
}
[data-md-color-scheme="slate"] .ai4sci-theme-toggle:hover {
  background: rgba(125, 156, 189, 0.1);
  color: var(--ai4sci-teal);
  border-color: rgba(125, 156, 189, 0.25);
}

/* --- Hero: showcase container --- */
.ai4sci-showcase-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(560px, 0.9fr);
  gap: clamp(1.6rem, 3vw, 3rem);
  align-items: stretch;
  row-gap: clamp(1rem, 2vw, 1.45rem);
  width: min(1360px, 100%);
  margin: 0 auto clamp(2.4rem, 6vw, 4.5rem);
  padding: clamp(1.45rem, 2.5vw, 2.45rem);
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 2rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(244, 249, 248, 0.78)),
    radial-gradient(circle at 78% 18%, rgba(73, 117, 156, 0.11), transparent 19rem);
  box-shadow:
    0 34px 90px rgba(26, 26, 26, 0.11),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  overflow: hidden;
}
.ai4sci-showcase-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.66) 38%, transparent 70%),
    radial-gradient(circle at 5% 5%, rgba(20, 36, 47, 0.08), transparent 18rem);
  opacity: 0.7;
}
.ai4sci-showcase-hero > * { position: relative; z-index: 1; }

/* --- Hero: scoreboard (top bar spanning full width) --- */
.ai4sci-hero-scoreboard {
  display: grid;
  gap: 0.72rem;
  /* Fixed, comfortable gap below the action buttons. (Previously `auto`, which
     collapsed to ~0 when the copy column was filled, crowding the buttons.) */
  margin-top: 1.9rem;
  padding: clamp(0.75rem, 1.4vw, 0.95rem);
  border: 1px solid rgba(73, 117, 156, 0.16);
  border-radius: 1.15rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(238, 249, 247, 0.76)),
    radial-gradient(circle at 92% 0%, rgba(73, 117, 156, 0.12), transparent 15rem);
  box-shadow:
    0 18px 48px rgba(26, 26, 26, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.ai4sci-hero-scoreboard-loading {
  color: rgba(26, 26, 26, 0.56);
  font-size: 0.82rem;
  font-weight: 720;
}
.ai4sci-hero-scoreboard-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  color: rgba(26, 26, 26, 0.54);
  font-size: 0.68rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ai4sci-hero-scoreboard-head div {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ai4sci-ink);
}
.ai4sci-hero-scoreboard-head span:last-child {
  padding: 0.28rem 0.52rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
}
.ai4sci-hero-score-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}
.ai4sci-hero-score-card {
  min-width: 0;
  min-height: 5.45rem;
  padding: 0.82rem 0.9rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.84);
}
.ai4sci-hero-score-card.is-primary {
  border-color: rgba(26, 26, 26, 0.92);
  background:
    linear-gradient(135deg, rgba(26, 26, 26, 0.98), rgba(43, 43, 40, 0.94)),
    radial-gradient(circle at 88% 16%, rgba(125, 156, 189, 0.24), transparent 12rem);
  color: #fff;
  box-shadow: 0 16px 42px rgba(26, 26, 26, 0.18);
}
.ai4sci-hero-score-card span,
.ai4sci-hero-score-card small { display: block; }
.ai4sci-hero-score-card span {
  color: rgba(26, 26, 26, 0.46);
  font-size: 0.66rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ai4sci-hero-score-card strong {
  display: block;
  margin-top: 0.32rem;
  color: var(--ai4sci-ink);
  font-size: clamp(1.12rem, 1.8vw, 1.65rem);
  font-weight: 820;
  line-height: 1.05;
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
}
.ai4sci-hero-score-card.is-primary strong {
  color: #fff;
  font-size: clamp(2rem, 3.2vw, 3.05rem);
}
.ai4sci-hero-score-card small {
  margin-top: 0.42rem;
  color: rgba(26, 26, 26, 0.54);
  font-size: 0.72rem;
  line-height: 1.35;
}
.ai4sci-hero-score-card.is-primary span,
.ai4sci-hero-score-card.is-primary small { color: rgba(246, 246, 244, 0.72); }

/* B-level mini bars inside scoreboard */
.ai4sci-hero-blevel-card { min-height: auto; }
.ai4sci-hero-blevel-grid {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.ai4sci-hero-blevel-row {
  display: grid;
  grid-template-columns: 1.8rem 1fr 2.4rem;
  gap: 0.45rem;
  align-items: center;
}
.ai4sci-hero-blevel-key {
  color: var(--ai4sci-muted) !important;
  font-size: 0.68rem !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.04em !important;
}
.ai4sci-hero-blevel-track {
  height: 0.45rem;
  border-radius: 999px;
  background: rgba(26, 26, 26, 0.06);
  overflow: hidden;
}
.ai4sci-hero-blevel-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ai4sci-accent), var(--ai4sci-teal));
  transition: width 500ms cubic-bezier(0.22, 1, 0.36, 1);
}
.ai4sci-hero-blevel-val {
  color: var(--ai4sci-ink) !important;
  font-size: 0.78rem !important;
  font-weight: 760 !important;
  text-align: right !important;
  text-transform: none !important;
  letter-spacing: -0.02em !important;
}

/* --- Hero: copy block --- */
.ai4sci-showcase-copy {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  max-width: 650px;
  padding: clamp(0.6rem, 1.4vw, 1rem) 0 0;
}
.ai4sci-showcase-copy .ai4sci-kicker { color: #3d6485; }

.ai4sci-showcase-copy h1 {
  max-width: 690px;
  margin: 0;
  color: var(--ai4sci-ink);
  font-size: clamp(2.35rem, 3.85vw, 3.95rem);
  font-weight: 820;
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.ai4sci-modern-subtitle {
  max-width: 650px;
  margin: 1.05rem 0 0;
  color: var(--ai4sci-muted);
  font-size: clamp(0.98rem, 1.35vw, 1.14rem);
  line-height: 1.62;
  font-weight: 500;
}

.ai4sci-modern-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
}
.ai4sci-modern-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  /* Fill the row equally so the right edge lines up with the panel below. */
  flex: 1 1 0;
  min-width: 0;
  white-space: nowrap;
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(26, 26, 26, 0.12);
  border-radius: 0.6rem;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ai4sci-ink);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(26, 26, 26, 0.05);
}
.ai4sci-modern-actions .ai4sci-action-primary {
  border-color: var(--ai4sci-deep);
  background: var(--ai4sci-deep);
  color: #fff;
}
.ai4sci-modern-actions a:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 50px rgba(26, 26, 26, 0.13);
}

/* --- Hero: workspace board (right side) --- */
.ai4sci-showcase-board {
  min-width: 0;
  width: 100%;
  padding: 1.05rem;
  border: 1px solid rgba(26, 26, 26, 0.1);
  border-radius: 1.35rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(248, 250, 250, 0.74)),
    radial-gradient(circle at 100% 0%, rgba(73, 117, 156, 0.1), transparent 16rem);
  box-shadow: 0 26px 70px rgba(26, 26, 26, 0.13);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.ai4sci-board-windowbar {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
  min-height: 2.75rem;
  padding: 0.15rem 0.1rem 0.8rem;
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}
.ai4sci-board-title {
  display: inline-flex;
  min-width: 0;
  gap: 0.62rem;
  align-items: center;
}
.ai4sci-board-title strong {
  color: var(--ai4sci-ink);
  font-size: 0.92rem;
  font-weight: 820;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.ai4sci-board-badge {
  flex: 0 0 auto;
  padding: 0.34rem 0.56rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 999px;
  background: rgba(248, 250, 250, 0.82);
  color: rgba(26, 26, 26, 0.56);
  font-size: 0.68rem;
  font-weight: 780;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ai4sci-live-dot {
  width: 0.54rem;
  height: 0.54rem;
  border-radius: 999px;
  background: var(--ai4sci-accent);
  box-shadow: 0 0 0 0.36rem rgba(73, 117, 156, 0.12);
}
.ai4sci-board-title .ai4sci-live-dot {
  flex: 0 0 auto;
  width: 0.58rem;
  height: 0.58rem;
}

/* Board tabs */
.ai4sci-board-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.42rem;
  margin: 0.72rem 0 0.85rem;
  padding: 0.32rem;
  border: 1px solid rgba(26, 26, 26, 0.07);
  border-radius: 0.82rem;
  background: rgba(244, 247, 247, 0.78);
}
.ai4sci-board-tabs button {
  min-width: 0;
  min-height: 2.12rem;
  padding: 0.42rem 0.48rem;
  border: 0;
  border-radius: 0.62rem;
  background: transparent;
  color: rgba(26, 26, 26, 0.56);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.ai4sci-board-tabs button.is-active {
  background: #fff;
  color: var(--ai4sci-ink);
  box-shadow: 0 8px 20px rgba(26, 26, 26, 0.07);
}
.ai4sci-board-tabs button:hover { transform: translateY(-1px); }
.ai4sci-board-tabs button:focus-visible,
.ai4sci-pipeline-steps button:focus-visible {
  outline: 2px solid rgba(73, 117, 156, 0.45);
  outline-offset: 2px;
}

/* Board panels */
.ai4sci-board-panels { display: grid; min-height: 16.6rem; }
.ai4sci-board-panel {
  grid-area: 1 / 1;
  display: grid;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 180ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 180ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 180ms;
}
.ai4sci-board-panel.is-active {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition-delay: 0s;
}
.ai4sci-board-panel[data-board-panel="workflow"].is-active { grid-template-columns: 1fr; }

/* Board cards */
.ai4sci-board-card {
  min-width: 0;
  padding: 0.9rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}
.ai4sci-board-card p {
  margin: 0 0 0.55rem;
  color: rgba(26, 26, 26, 0.48);
  font-size: 0.68rem;
  font-weight: 820;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.ai4sci-board-card-large {
  min-height: 10.8rem;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(135deg, rgba(26, 26, 26, 0.98), rgba(40, 40, 37, 0.94)),
    radial-gradient(circle at 80% 20%, rgba(125, 156, 189, 0.2), transparent 12rem);
  color: #fff;
}
.ai4sci-board-card-large p { color: rgba(246, 246, 244, 0.66); }
/* Distribute free vertical space: nudge the eyebrow+heading toward the middle
   and pin the pipeline steps to the bottom of the card. */
.ai4sci-board-card-large > p:first-child { margin-top: auto; }
.ai4sci-board-card-large .ai4sci-pipeline-steps { margin-top: auto; }
.ai4sci-board-card-large h2 {
  max-width: none;
  margin: 0;
  color: #fff;
  /* This is a product-UI card, not editorial copy — use the sans face, not the
     EB Garamond display serif applied to content headings. */
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: clamp(1.28rem, 1.6vw, 1.5rem);
  font-weight: 680;
  line-height: 1.22;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.ai4sci-board-card-score strong {
  display: block;
  color: var(--ai4sci-ink);
  font-size: 1.7rem;
  letter-spacing: -0.04em;
}
.ai4sci-board-card-score span {
  display: block;
  margin-top: 0.45rem;
  color: var(--ai4sci-muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.ai4sci-board-card-ladder div {
  display: grid;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  gap: 0.45rem;
  align-items: center;
  margin-top: 0.48rem;
  color: rgba(26, 26, 26, 0.56);
  font-size: 0.72rem;
  font-weight: 820;
}
.ai4sci-board-card-ladder i {
  display: block;
  width: var(--w);
  height: 0.42rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #49759c, #a9c3da);
}

.ai4sci-domain-cloud { display: flex; flex-wrap: wrap; gap: 0.38rem; }
.ai4sci-domain-cloud span {
  padding: 0.34rem 0.48rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 0.55rem;
  background: rgba(248, 250, 252, 0.78);
  color: rgba(26, 26, 26, 0.68);
  font-size: 0.68rem;
  font-weight: 760;
}

/* Pipeline steps */
.ai4sci-pipeline-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.4rem;
  margin-top: 1.1rem;
}
.ai4sci-pipeline-steps button {
  min-width: 0;
  min-height: 2.55rem;
  padding: 0.42rem 0.24rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0.58rem;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(248, 250, 252, 0.86);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease;
}
.ai4sci-pipeline-steps button.is-active,
.ai4sci-pipeline-steps button:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.ai4sci-workflow-note {
  display: grid;
  gap: 0.22rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: var(--ai4sci-radius-md);
  background: rgba(255, 255, 255, 0.74);
  transition: background-color 160ms ease, border-color 160ms ease, opacity 160ms ease, transform 160ms ease;
}
.ai4sci-workflow-note strong { color: var(--ai4sci-ink); font-size: 0.95rem; }
.ai4sci-workflow-note span { color: var(--ai4sci-muted); font-size: 0.82rem; line-height: 1.5; }

/* Hero bottom metric strip */
.ai4sci-showcase-metrics { margin-top: 0.65rem; }
.ai4sci-showcase-metrics .ai4sci-metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.ai4sci-showcase-metrics .ai4sci-metric {
  min-height: 4rem;
  padding: 0.72rem 0.82rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.68);
}
.ai4sci-showcase-metrics .ai4sci-metric span {
  display: block;
  margin-bottom: 0.12rem;
  color: rgba(26, 26, 26, 0.46);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ai4sci-showcase-metrics .ai4sci-metric strong {
  display: block;
  color: var(--ai4sci-ink);
  font-size: 1.12rem;
  font-weight: 760;
  white-space: nowrap;
}

/* ============================================================
   HOMEPAGE SECTIONS
   ============================================================ */

.ai4sci-home-section {
  width: min(1360px, 100%) !important;
  margin-right: auto !important;
  margin-left: auto !important;
}

.ai4sci-home-root .ai4sci-section,
.ai4sci-home-root .ai4sci-glass-panel {
  margin-bottom: clamp(1.2rem, 2.8vw, 2rem);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border: 1px solid var(--ai4sci-line);
  border-radius: var(--ai4sci-radius-lg);
  background: var(--ai4sci-surface);
  box-shadow: 0 18px 58px rgba(26, 26, 26, 0.055);
}

.ai4sci-section-heading {
  max-width: 760px;
  margin-bottom: 1.2rem;
}
.ai4sci-section-heading h2,
.ai4sci-split-section h2 {
  margin: 0 0 0.45rem;
  color: var(--ai4sci-ink);
  font-size: clamp(1.5rem, 2.25vw, 2.1rem);
  font-weight: 760;
  letter-spacing: -0.035em;
}
.ai4sci-section-heading p,
.ai4sci-split-section p,
.ai4sci-home-root .ai4sci-section p { color: var(--ai4sci-muted); }
.ai4sci-section-heading p {
  max-width: 760px;
  font-size: 0.98rem;
  line-height: 1.65;
}

/* Leaderboard panel */
.ai4sci-leaderboard-panel { margin-bottom: 1.8rem; }
.ai4sci-home-root .ai4sci-glass-panel { padding: clamp(1.35rem, 2.6vw, 2rem); }

/* Split section */
.ai4sci-split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1.14fr);
  gap: 1.5rem;
  align-items: center;
}

/* --- Stack (numbered steps) --- */
.ai4sci-stack {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  overflow: hidden;
}
.ai4sci-stack-row {
  display: block;
  min-height: 11.5rem;
  padding: 1.25rem;
  border-right: 1px solid var(--ai4sci-line);
  background: var(--ai4sci-surface);
}
.ai4sci-stack-row:last-child { border-right: 0; }
.ai4sci-stack-index {
  display: block;
  margin-bottom: 1.1rem;
  color: var(--ai4sci-accent);
  font-size: 0.86rem;
  font-weight: 820;
  letter-spacing: 0.12em;
}
.ai4sci-stack-row h3 {
  margin: 0 0 0.4rem;
  color: var(--ai4sci-ink);
  font-size: 1.05rem;
  letter-spacing: -0.025em;
}
.ai4sci-stack-row p {
  margin: 0;
  color: var(--ai4sci-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* --- Feature grid --- */
.ai4sci-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}
.ai4sci-feature-card {
  padding: 1rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  background: var(--ai4sci-surface);
}
.ai4sci-feature-card h3 {
  margin: 0 0 0.45rem;
  color: var(--ai4sci-ink);
  font-size: 1.05rem;
  letter-spacing: -0.025em;
}
.ai4sci-feature-card p {
  margin: 0;
  color: var(--ai4sci-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* --- B1-B4 Prompt Ladder --- */
.ai4sci-ladder-web {
  margin: 1rem 0 1.35rem;
  padding: clamp(1rem, 2vw, 1.35rem);
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(248, 250, 250, 0.78)),
    radial-gradient(circle at 90% 0%, rgba(73, 117, 156, 0.08), transparent 18rem);
  box-shadow: 0 16px 46px rgba(26, 26, 26, 0.055);
}
.ai4sci-ladder-head {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.ai4sci-ladder-head h3 {
  margin: 0;
  color: var(--ai4sci-ink);
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  letter-spacing: -0.02em;
}
.ai4sci-ladder-head p {
  max-width: 34rem;
  margin: 0;
  color: var(--ai4sci-muted);
  font-size: 0.86rem;
  line-height: 1.45;
  text-align: right;
}
.ai4sci-ladder-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}
.ai4sci-ladder-card {
  display: flex;
  flex-direction: column;
  min-height: 10.6rem;
  padding: 0.95rem;
  border: 1px solid var(--ladder-line);
  border-radius: 0.82rem;
  background: var(--ladder-bg);
}
.ai4sci-ladder-card strong {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--ladder-accent);
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  line-height: 1;
}
.ai4sci-ladder-card h4 {
  margin: 0 0 0.52rem;
  color: var(--ai4sci-ink);
  font-size: 0.92rem;
  line-height: 1.25;
}
.ai4sci-ladder-card p {
  margin: 0;
  color: rgba(26, 26, 26, 0.64);
  font-size: 0.78rem;
  line-height: 1.48;
}
.ai4sci-ladder-card.is-b1 { --ladder-accent: #1d4ed8; --ladder-bg: #eef4ff; --ladder-line: #bfdbfe; }
.ai4sci-ladder-card.is-b2 { --ladder-accent: #7c3aed; --ladder-bg: #f5f3ff; --ladder-line: #ddd6fe; }
.ai4sci-ladder-card.is-b3 { --ladder-accent: #15803d; --ladder-bg: #f0fdf4; --ladder-line: #bbf7d0; }
.ai4sci-ladder-card.is-b4 { --ladder-accent: #c2410c; --ladder-bg: #fff7ed; --ladder-line: #fed7aa; }

.ai4sci-ladder-foot {
  margin: 0.85rem 0 0;
  padding: 0.68rem 0.78rem;
  border: 1px solid rgba(26, 26, 26, 0.07);
  border-radius: 0.72rem;
  background: rgba(255, 255, 255, 0.66);
  color: var(--ai4sci-muted);
  font-size: 0.82rem;
  line-height: 1.35;
  text-align: center;
}

/* --- Figures --- */
.ai4sci-figure { margin: 1.25rem 0 1.75rem; }
.ai4sci-figure img {
  display: block;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  border-radius: 1rem;
  border: 1px solid rgba(26, 26, 26, 0.1);
  box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.08);
  background: #fff;
}
.ai4sci-figure-tight { margin: 0; }
.ai4sci-figure-tight img { border-radius: 0.65rem; }

/* --- News list --- */
.ai4sci-news-list-compact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
  padding-left: 0;
  list-style: none;
}
.ai4sci-news-list-compact li {
  margin: 0;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 0.65rem;
  background: var(--ai4sci-surface);
  color: var(--ai4sci-muted);
}

/* --- Inline link --- */
.ai4sci-inline-link {
  display: inline-flex;
  align-items: center;
  margin-top: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ai4sci-ink);
}
.ai4sci-inline-link:hover { text-decoration: underline; }

/* --- Compact list --- */
.ai4sci-compact-list { margin-left: 1rem; }
.ai4sci-compact-list li { margin: 0.35rem 0; }

/* ============================================================
   SHARED COMPONENTS (homepage + inner pages)
   ============================================================ */

/* --- Cards --- */
.ai4sci-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin: 1rem 0 1.5rem;
}
.ai4sci-task-card-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.ai4sci-card {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  background: var(--ai4sci-surface);
  transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}
.ai4sci-card h3 { color: var(--ai4sci-ink); font-size: 1.05rem; letter-spacing: -0.025em; }
.ai4sci-card p { color: var(--ai4sci-muted); font-size: 0.9rem; line-height: 1.55; }

.ai4sci-card-link { color: inherit; text-decoration: none; }
.ai4sci-card-link:hover {
  border-color: rgba(73, 117, 156, 0.35);
  transform: translateY(-2px);
  box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.1);
}

.ai4sci-card-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ai4sci-muted);
  margin-bottom: 0.4rem;
}
.ai4sci-card-title { font-size: 1rem; font-weight: 700; line-height: 1.35; margin-bottom: 0.5rem; }
.ai4sci-card-body { margin: 0; font-size: 0.92rem; color: var(--ai4sci-muted); }
.ai4sci-card-value { font-size: 1.4rem; font-weight: 700; }

.ai4sci-stat-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.ai4sci-stat-card { min-height: 6.8rem; }
.ai4sci-stat-card .ai4sci-card-value { font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.1; }

/* --- Tags --- */
.ai4sci-tag-row { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.8rem; }
.ai4sci-tag-row-tight { margin: 0.45rem 0 0.65rem; }
.ai4sci-tag {
  display: inline-block;
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  font-size: 0.76rem;
  background: rgba(73, 117, 156, 0.1);
  color: var(--ai4sci-ink);
}
.ai4sci-tag-strong { background: rgba(73, 117, 156, 0.18); font-weight: 700; }
.ai4sci-tag-status,
.ai4sci-tag-trust { background: rgba(46, 125, 50, 0.14); }

/* --- Tables --- */
.ai4sci-table-wrap { overflow-x: auto; margin: 1rem 0 1.5rem; }
.ai4sci-table { width: 100%; border-collapse: collapse; }
.ai4sci-table th,
.ai4sci-table td {
  text-align: left;
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--ai4sci-line);
  vertical-align: top;
}
.ai4sci-table th {
  font-weight: 700;
  color: var(--ai4sci-muted);
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.035));
}
.ai4sci-table tbody tr:hover td { background: rgba(73, 117, 156, 0.04); }
.ai4sci-table-compact th,
.ai4sci-table-compact td { padding: 0.55rem 0.65rem; }
.ai4sci-table-subtext { color: var(--ai4sci-muted); font-size: 0.75rem; }

/* --- Page intro box --- */
.ai4sci-page-intro {
  padding: 1rem 1.15rem;
  margin: 0.8rem 0 1.25rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 0.95rem;
  background: rgba(73, 117, 156, 0.06);
}

/* --- Empty state --- */
.ai4sci-empty-state {
  padding: 1rem 1.1rem;
  border: 1px dashed var(--ai4sci-line);
  border-radius: 0.8rem;
  color: var(--ai4sci-muted);
  margin: 1rem 0;
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.03));
}

/* --- Toolbar / input / select --- */
.ai4sci-toolbar { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1rem 0; }
.ai4sci-input,
.ai4sci-select {
  border: 1px solid var(--ai4sci-line);
  border-radius: 0.65rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
  min-width: 220px;
  background: var(--md-default-bg-color, #fff);
  color: var(--ai4sci-ink);
}

/* --- Meta note --- */
.ai4sci-meta-note { color: var(--ai4sci-muted); font-size: 0.92rem; }

/* --- Leaderboard components --- */
.ai4sci-leaderboard-note {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.32rem 0.65rem;
  align-items: center;
  overflow-x: auto;
  margin: 0 0 0.8rem;
  padding: 0.72rem 0.86rem;
  border: 1px solid rgba(73, 117, 156, 0.18);
  border-radius: 0.8rem;
  background: rgba(73, 117, 156, 0.06);
  color: var(--ai4sci-muted);
  font-size: 0.84rem;
}
.ai4sci-leaderboard-note strong { color: var(--ai4sci-ink); }
.ai4sci-leaderboard-note span { min-width: 0; }

.ai4sci-leaderboard-shell { margin-top: 0.35rem; }
.ai4sci-shell-toolbar { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 0.55rem; }
.ai4sci-shell-row td {
  color: var(--ai4sci-muted);
  background: rgba(26, 26, 26, 0.03);
}

.ai4sci-leaderboard-view-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.95rem 0 1.05rem;
  padding: 0.36rem;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 0.9rem;
  background: rgba(244, 247, 247, 0.78);
}
.ai4sci-leaderboard-view-switch a {
  flex: 1 1 10rem;
  min-height: 2.35rem;
  padding: 0.58rem 0.75rem;
  border-radius: 0.68rem;
  color: rgba(26, 26, 26, 0.62);
  font-size: 0.78rem;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.ai4sci-leaderboard-view-switch a:hover { color: #3d6485; transform: translateY(-1px); }
.ai4sci-leaderboard-view-switch a.is-active {
  background: #fff;
  color: #1a1a1a;
  box-shadow: 0 10px 24px rgba(26, 26, 26, 0.07);
}

/* --- Level cards --- */
.ai4sci-level-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}
.ai4sci-level-card {
  padding: 1rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  background: var(--ai4sci-surface);
  box-shadow: 0 16px 42px rgba(26, 26, 26, 0.055);
}
.ai4sci-level-card-topline,
.ai4sci-level-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  justify-content: space-between;
}
.ai4sci-level-card-topline > span:first-child {
  color: var(--ai4sci-accent);
  font-size: 0.72rem;
  font-weight: 860;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.ai4sci-level-card > strong {
  display: block;
  margin: 0.8rem 0 0.45rem;
  color: var(--ai4sci-ink);
  font-size: 2.2rem;
  letter-spacing: -0.04em;
}
.ai4sci-level-card p {
  min-height: 4.4rem;
  color: var(--ai4sci-muted);
  font-size: 0.88rem;
  line-height: 1.52;
}
.ai4sci-level-card-meta {
  color: var(--ai4sci-muted);
  font-size: 0.76rem;
  font-weight: 720;
}

/* ============================================================
   INNER PAGES (non-homepage)
   ============================================================ */

body:not(.ai4sci-home-page) {
  background:
    radial-gradient(circle at 86% 8%, rgba(73, 117, 156, 0.08), transparent 22rem),
    linear-gradient(180deg, #f6f6f4 0%, #fbfbf8 48%, #ffffff 100%);
}

body:not(.ai4sci-home-page) .md-header {
  background: rgba(255, 255, 255, 0.9);
  color: #1a1a1a;
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
  box-shadow: 0 14px 42px rgba(26, 26, 26, 0.06);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
body:not(.ai4sci-home-page) .md-header__title,
body:not(.ai4sci-home-page) .md-header__button,
body:not(.ai4sci-home-page) .md-search__input,
body:not(.ai4sci-home-page) .md-source { color: #1a1a1a; }
body:not(.ai4sci-home-page) .md-header__button.md-logo { pointer-events: none; cursor: default; }
body:not(.ai4sci-home-page) .md-search__form {
  border-radius: 0.72rem;
  background: rgba(26, 26, 26, 0.05);
}
body:not(.ai4sci-home-page) .md-main__inner { gap: 1.25rem; }
body:not(.ai4sci-home-page) .md-sidebar--secondary { display: none; }

body:not(.ai4sci-home-page) .md-content__inner {
  margin-top: 1.2rem !important;
  padding: clamp(1.2rem, 2.8vw, 2rem);
  border: 1px solid var(--ai4sci-line);
  border-radius: var(--ai4sci-radius-lg);
  background: var(--ai4sci-panel);
  box-shadow: 0 18px 56px rgba(26, 26, 26, 0.055);
}

body:not(.ai4sci-home-page) .ai4sci-table { font-size: 0.82rem; }
body:not(.ai4sci-home-page) .ai4sci-table th,
body:not(.ai4sci-home-page) .ai4sci-table td { padding: 0.62rem 0.7rem; }

body:not(.ai4sci-home-page) .md-typeset h1 {
  color: var(--ai4sci-ink);
  font-size: clamp(2.1rem, 4vw, 3.45rem);
  font-weight: 780;
  letter-spacing: -0.05em;
}
body:not(.ai4sci-home-page) .md-typeset h2 {
  color: var(--ai4sci-ink);
  font-weight: 720;
  letter-spacing: -0.035em;
}
body:not(.ai4sci-home-page) .md-sidebar__scrollwrap {
  border-right: 1px solid var(--ai4sci-line);
}
body:not(.ai4sci-home-page) .md-nav__title,
body:not(.ai4sci-home-page) .md-nav__item .md-nav__link--active { color: var(--ai4sci-accent); }

/* ============================================================
   CUSTOM DOCS SIDEBAR
   ============================================================ */

body.ai4sci-modern-docs-nav .md-sidebar--primary { width: 14.5rem; }
body.ai4sci-modern-docs-nav .md-sidebar--primary .md-sidebar__scrollwrap {
  margin-top: 0 !important;
  overflow: auto;
  padding: 0.7rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  background: var(--ai4sci-surface);
  box-shadow: 0 16px 44px rgba(26, 26, 26, 0.055);
}

.ai4sci-docs-nav-brand,
body.ai4sci-modern-docs-nav .md-sidebar--primary .md-nav__title { display: none !important; }
body.ai4sci-modern-docs-nav .md-content { margin-left: 0.8rem; }

.ai4sci-docs-nav { display: grid; gap: 0.18rem; }
.ai4sci-docs-nav-link,
.ai4sci-docs-nav-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 1.82rem;
  padding: 0.38rem 0.52rem;
  border-radius: var(--ai4sci-radius-sm);
  color: var(--md-default-fg-color, var(--ai4sci-ink));
  font-size: 0.78rem;
  font-weight: 680;
  line-height: 1.25;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}
.ai4sci-docs-nav-link:hover,
.ai4sci-docs-nav-group summary:hover {
  background: rgba(73, 117, 156, 0.07);
  color: var(--ai4sci-accent);
  transform: translateY(-1px);
}
.ai4sci-docs-nav-link:focus-visible,
.ai4sci-docs-nav-group summary:focus-visible {
  outline: 2px solid rgba(73, 117, 156, 0.4);
  outline-offset: 2px;
}
.ai4sci-docs-nav-link.is-active {
  background: rgba(73, 117, 156, 0.11);
  color: var(--ai4sci-accent);
  font-weight: 780;
}

.ai4sci-docs-nav-group { margin: 0.08rem 0; }
.ai4sci-docs-nav-group summary {
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.045));
  color: var(--md-default-fg-color, var(--ai4sci-ink));
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  list-style: none;
  text-transform: uppercase;
}
.ai4sci-docs-nav-group summary::-webkit-details-marker { display: none; }
.ai4sci-docs-nav-group summary::after {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  opacity: 0.58;
  transform: rotate(-45deg);
  transition: transform 160ms ease;
}
.ai4sci-docs-nav-group[open] summary {
  background: rgba(73, 117, 156, 0.09);
  color: var(--ai4sci-accent);
}
.ai4sci-docs-nav-group[open] summary::after { transform: rotate(45deg); }

.ai4sci-docs-nav-group-body {
  display: grid;
  gap: 0.1rem;
  padding: 0.18rem 0 0.24rem 0.3rem;
}
.ai4sci-docs-nav-group-body .ai4sci-docs-nav-link {
  min-height: 1.66rem;
  padding-left: 0.58rem;
  color: var(--md-default-fg-color--light, rgba(26, 26, 26, 0.66));
  font-size: 0.72rem;
}

/* --- Leaderboard cards (visual) --- */
.ai4sci-lb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 0.85rem;
  margin: 0.5rem 0 1rem;
}
.ai4sci-lb-card {
  padding: 1.15rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1.1rem;
  background: var(--ai4sci-panel);
  box-shadow: 0 14px 40px rgba(26, 26, 26, 0.06);
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.ai4sci-lb-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 52px rgba(26, 26, 26, 0.1);
}
.ai4sci-lb-card-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--ai4sci-line);
}
.ai4sci-lb-rank {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.72rem;
  background: linear-gradient(135deg, var(--ai4sci-deep), rgba(43, 43, 40, 0.94));
  color: #fff;
  font-size: 1.05rem;
  font-weight: 820;
}
.ai4sci-lb-agent-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.ai4sci-lb-agent-name {
  color: var(--ai4sci-ink);
  font-size: 0.98rem;
  font-weight: 760;
}
.ai4sci-lb-model {
  color: var(--ai4sci-muted);
  font-size: 0.78rem;
}
.ai4sci-lb-overall {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.1rem;
}
.ai4sci-lb-overall-label {
  color: var(--ai4sci-muted);
  font-size: 0.65rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ai4sci-lb-overall-value {
  color: var(--ai4sci-accent);
  font-size: 1.8rem;
  font-weight: 820;
  letter-spacing: -0.04em;
  line-height: 1;
}
.ai4sci-lb-scores {
  display: grid;
  gap: 0.48rem;
  margin-bottom: 0.9rem;
}
.ai4sci-lb-score-row {
  display: grid;
  grid-template-columns: 2rem 1fr 2.8rem;
  gap: 0.55rem;
  align-items: center;
}
.ai4sci-lb-score-key {
  color: var(--ai4sci-muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}
.ai4sci-lb-score-bar-track {
  height: 0.55rem;
  border-radius: 999px;
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.06));
  overflow: hidden;
}
.ai4sci-lb-score-bar {
  height: 100%;
  border-radius: 999px;
  transition: width 400ms cubic-bezier(0.22, 1, 0.36, 1);
}
.ai4sci-lb-score-value {
  color: var(--ai4sci-ink);
  font-size: 0.82rem;
  font-weight: 720;
  text-align: right;
}
.ai4sci-lb-card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--ai4sci-line);
}

/* --- Enhanced task cards --- */
.ai4sci-task-card-enhanced {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem;
}
.ai4sci-task-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}
.ai4sci-task-domain-badge {
  display: inline-flex;
  padding: 0.22rem 0.58rem;
  border-radius: 0.48rem;
  background: linear-gradient(135deg, rgba(73, 117, 156, 0.14), rgba(73, 117, 156, 0.08));
  color: var(--ai4sci-accent);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.ai4sci-task-time {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.05));
  color: var(--ai4sci-muted);
  font-size: 0.7rem;
  font-weight: 700;
}
.ai4sci-task-time::before {
  content: "\29D7";
  font-size: 0.82rem;
}
.ai4sci-task-card-enhanced .ai4sci-card-title {
  font-size: 0.98rem;
  font-weight: 740;
  line-height: 1.3;
  margin-bottom: 0.2rem;
  color: var(--ai4sci-ink);
}
.ai4sci-task-card-enhanced .ai4sci-card-body {
  font-size: 0.84rem;
  line-height: 1.52;
  color: var(--ai4sci-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ai4sci-task-deps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.32rem;
  margin-top: 0.15rem;
}
.ai4sci-task-deps-label {
  color: var(--ai4sci-muted);
  font-size: 0.65rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.ai4sci-task-dep {
  padding: 0.14rem 0.42rem;
  border-radius: 0.35rem;
  background: var(--md-default-fg-color--lightest, rgba(26, 26, 26, 0.05));
  color: var(--ai4sci-ink);
  font-size: 0.7rem;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}
.ai4sci-task-card-enhanced .ai4sci-tag-row-tight {
  margin-top: auto;
  padding-top: 0.35rem;
}

/* ============================================================
   HOMEPAGE ADDITIONS — Timeline, Quick Start, Domain Viz, Footer
   ============================================================ */

/* --- Model timeline chart --- */
.ai4sci-tl-wrap {
  overflow-x: auto;
  margin: 0.5rem 0;
}
.ai4sci-tl-svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 640px;
}
.ai4sci-tl-grid {
  stroke: rgba(26, 26, 26, 0.07);
  stroke-width: 1;
}
.ai4sci-tl-grid-v { stroke-dasharray: 4 4; }
.ai4sci-tl-ytick,
.ai4sci-tl-xtick {
  fill: rgba(26, 26, 26, 0.48);
  font-size: 11px;
  font-weight: 600;
}
.ai4sci-tl-ytick { text-anchor: end; }
.ai4sci-tl-xtick { text-anchor: middle; }
.ai4sci-tl-xyear {
  fill: rgba(26, 26, 26, 0.62);
  font-size: 12px;
  font-weight: 760;
  text-anchor: middle;
}
.ai4sci-tl-axis-label {
  fill: rgba(26, 26, 26, 0.42);
  font-size: 12px;
  font-weight: 720;
  text-anchor: middle;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ai4sci-tl-trend {
  fill: none;
  stroke: var(--ai4sci-accent);
  stroke-width: 2.5;
  stroke-dasharray: 8 5;
  opacity: 0.6;
}
.ai4sci-tl-dot {
  transition: r 160ms ease;
  cursor: default;
}
.ai4sci-tl-dot:hover { r: 10; }
.ai4sci-tl-label {
  fill: var(--ai4sci-ink);
  font-size: 11px;
  font-weight: 700;
  text-anchor: middle;
  pointer-events: none;
}
.ai4sci-tl-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.6rem;
}
.ai4sci-tl-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 680;
  color: var(--ai4sci-muted);
}
.ai4sci-tl-legend-dot {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  border: 2px solid;
}

[data-md-color-scheme="slate"] .ai4sci-tl-grid { stroke: rgba(246, 246, 244, 0.08); }
[data-md-color-scheme="slate"] .ai4sci-tl-ytick,
[data-md-color-scheme="slate"] .ai4sci-tl-xtick { fill: rgba(246, 246, 244, 0.45); }
[data-md-color-scheme="slate"] .ai4sci-tl-xyear { fill: rgba(246, 246, 244, 0.6); }
[data-md-color-scheme="slate"] .ai4sci-tl-axis-label { fill: rgba(246, 246, 244, 0.38); }

/* --- Quick Start panel --- */
.ai4sci-glass-panel.ai4sci-quickstart-panel {
  border-color: rgba(73, 117, 156, 0.18);
  background:
    linear-gradient(135deg, rgba(236, 253, 249, 0.6), rgba(255, 255, 255, 0.82)),
    radial-gradient(circle at 80% 20%, rgba(73, 117, 156, 0.08), transparent 20rem);
}
.ai4sci-quickstart-steps {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.5rem;
}
.ai4sci-quickstart-step {
  display: grid;
  grid-template-columns: 2.8rem 1fr;
  grid-template-rows: auto auto;
  gap: 0 1rem;
  padding: 1.2rem;
  border: 1px solid var(--ai4sci-line);
  border-radius: 1rem;
  background: var(--ai4sci-panel);
}
.ai4sci-quickstart-num {
  grid-row: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.6rem;
  background: var(--ai4sci-deep);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 820;
}
.ai4sci-quickstart-code {
  overflow-x: auto;
}
.ai4sci-quickstart-code pre {
  margin: 0;
  padding: 0.7rem 1rem;
  border-radius: 0.6rem;
  background: rgba(26, 26, 26, 0.04);
  font-size: 0.82rem;
  line-height: 1.55;
}
.ai4sci-quickstart-code code {
  background: none;
  padding: 0;
  font-size: inherit;
}
.ai4sci-quickstart-step > p {
  grid-column: 2;
  margin: 0.5rem 0 0;
  color: var(--ai4sci-muted);
  font-size: 0.86rem;
}
.ai4sci-quickstart-footer {
  margin-top: 1.5rem;
  text-align: center;
}
.ai4sci-quickstart-footer a {
  font-weight: 720;
  color: var(--ai4sci-accent);
  text-decoration: none;
}
.ai4sci-quickstart-footer a:hover { text-decoration: underline; }

/* --- Domain bar chart --- */
.ai4sci-domain-bars {
  display: grid;
  gap: 0.7rem;
  max-width: 700px;
  margin: 1.5rem auto 0;
}
.ai4sci-domain-bar-row {
  display: grid;
  grid-template-columns: 2rem 10rem 1fr 2.5rem;
  gap: 0.7rem;
  align-items: center;
}
.ai4sci-domain-bar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: 1.15rem;
  line-height: 1;
}
.ai4sci-domain-bar-label {
  font-size: 0.86rem;
  font-weight: 680;
  color: var(--ai4sci-ink);
  text-transform: capitalize;
}
.ai4sci-domain-bar-track {
  height: 0.6rem;
  border-radius: 999px;
  background: rgba(26, 26, 26, 0.06);
  overflow: hidden;
}
.ai4sci-domain-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ai4sci-accent), var(--ai4sci-teal));
  transition: width 600ms cubic-bezier(0.22, 1, 0.36, 1);
}
.ai4sci-domain-bar-count {
  font-size: 0.88rem;
  font-weight: 780;
  color: var(--ai4sci-accent);
  text-align: right;
}

/* --- Site footer --- */
.ai4sci-site-footer {
  margin-top: 4rem;
  padding: 3rem clamp(1.5rem, 5vw, 4rem) 1.5rem;
  border-top: 1px solid rgba(26, 26, 26, 0.1);
  background: var(--ai4sci-deep);
  color: rgba(246, 246, 244, 0.82);
  border-radius: 2rem 2rem 0 0;
}
.ai4sci-footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}
.ai4sci-footer-brand {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.ai4sci-footer-brand img {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.5rem;
}
.ai4sci-footer-brand strong {
  display: block;
  color: #fff;
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}
.ai4sci-footer-brand p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(246, 246, 244, 0.6);
}
.ai4sci-footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.ai4sci-footer-col h4 {
  margin: 0 0 0.8rem;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.ai4sci-footer-col a {
  display: block;
  padding: 0.3rem 0;
  color: rgba(246, 246, 244, 0.7);
  font-size: 0.86rem;
  text-decoration: none;
  transition: color 150ms ease;
}
.ai4sci-footer-col a:hover { color: var(--ai4sci-teal); }
.ai4sci-footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
  color: rgba(246, 246, 244, 0.5);
}

/* ============================================================
   ANIMATIONS & TRANSITIONS
   ============================================================ */

@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 180ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes ai4sci-page-enter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
body:not(.ai4sci-home-page) .md-content__inner,
.ai4sci-home-root {
  animation: ai4sci-page-enter 180ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root),
  body:not(.ai4sci-home-page) .md-content__inner,
  .ai4sci-home-root,
  .ai4sci-board-panel,
  .ai4sci-board-tabs button,
  .ai4sci-pipeline-steps button,
  .ai4sci-leaderboard-view-switch a,
  .ai4sci-docs-nav-link,
  .ai4sci-docs-nav-group summary {
    animation: none !important;
    transition: none !important;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Stack the hero to one column while the two-column copy area would be too
   narrow for the three action buttons. Below this the full-width single column
   gives them room; above it the copy column is wide enough. */
@media (max-width: 1300px) {
  .ai4sci-showcase-hero { grid-template-columns: 1fr; }
  .ai4sci-showcase-board { max-width: 780px; }
}

@media (max-width: 1160px) {
  .ai4sci-ladder-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai4sci-ladder-head { display: block; }
  .ai4sci-ladder-head p { max-width: none; margin-top: 0.35rem; text-align: left; }
  .ai4sci-level-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1080px) {
  .ai4sci-stack { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai4sci-stack-row:nth-child(2) { border-right: 0; }
  .ai4sci-stack-row:nth-child(-n + 2) { border-bottom: 1px solid rgba(26, 26, 26, 0.08); }

  .ai4sci-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai4sci-hero-score-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .ai4sci-split-section { grid-template-columns: 1fr; }
  .ai4sci-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai4sci-footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .ai4sci-footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .ai4sci-home-root { padding-inline: 0.9rem; }

  .ai4sci-floating-nav {
    min-height: auto;
    align-items: flex-start;
    margin-bottom: 1rem;
  }
  .ai4sci-floating-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }
  .ai4sci-floating-links a { white-space: nowrap; }

  .ai4sci-showcase-hero { padding: 1rem; border-radius: 1.25rem; }
  .ai4sci-showcase-copy h1 { font-size: clamp(2.25rem, 14vw, 3.4rem); }
  /* Phones: stack the actions full-width instead of the equal-width row. */
  .ai4sci-modern-actions { flex-direction: column; }
  .ai4sci-showcase-copy .ai4sci-modern-actions a { flex: 0 0 auto; width: 100%; }
  .ai4sci-board-windowbar { align-items: flex-start; flex-direction: column; }

  .ai4sci-board-panel.is-active,
  .ai4sci-showcase-metrics .ai4sci-metric-strip,
  .ai4sci-hero-score-grid,
  .ai4sci-stack,
  .ai4sci-level-card-grid { grid-template-columns: 1fr; }

  .ai4sci-board-card-large { grid-column: auto; }
  .ai4sci-pipeline-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .ai4sci-stack-row,
  .ai4sci-stack-row:nth-child(2),
  .ai4sci-stack-row:last-child {
    border-right: 0;
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
  }
  .ai4sci-stack-row:last-child { border-bottom: 0; }

  .ai4sci-feature-grid { grid-template-columns: 1fr; }
  .ai4sci-toolbar { flex-direction: column; }
  .ai4sci-input, .ai4sci-select { min-width: 0; width: 100%; }
  .ai4sci-leaderboard-note { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .ai4sci-ladder-grid { grid-template-columns: 1fr; }
  .ai4sci-domain-bar-row {
    grid-template-columns: 1.8rem 7rem 1fr 2rem;
    gap: 0.5rem;
  }
  .ai4sci-domain-bar-label { font-size: 0.78rem; }
  .ai4sci-footer-links { grid-template-columns: 1fr; }
}