:root {
  color-scheme: dark;
  --bg: #08111f;
  --panel: rgba(10, 20, 38, 0.92);
  --panel-soft: rgba(14, 28, 51, 0.86);
  --line: rgba(126, 164, 255, 0.2);
  --text: #eef4ff;
  --muted: #a7b8d8;
  --accent: #6cf0b8;
  --accent-2: #ffd166;
  --danger: #ff7b7b;
  --cooler: #60d5ff;
  --fragile: #ff9ad5;
  --snack: #ffd166;
  --back: #9ab0ff;
  --shadow: 0 24px 70px rgba(1, 6, 17, 0.45);
  font-family: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background:
  radial-gradient(circle at top left, rgba(35, 77, 164, 0.35), transparent 30%),
  radial-gradient(circle at top right, rgba(255, 209, 102, 0.18), transparent 28%),
  linear-gradient(180deg, #07101d 0%, #0a1221 52%, #06101c 100%);
  color: var(--text);
}
body { padding: 28px 16px 40px; }
a { color: inherit; }
.site-shell { max-width: 1180px; margin: 0 auto; }
.site-header, .site-footer, .card, .lane-card, .summary-item, .stat-card {
  backdrop-filter: blur(10px);
}
.site-header, .site-footer, .card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}
.site-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.brand { font-size: 1.35rem; font-weight: 800; text-decoration: none; }
.tagline { margin: 6px 0 0; color: var(--muted); max-width: 720px; }
.site-nav { display: flex; gap: 10px; flex-wrap: wrap; }
.nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  background: rgba(255,255,255,0.03);
  border: 1px solid transparent;
}
.nav-link.is-active { color: var(--text); border-color: rgba(108, 240, 184, 0.35); background: rgba(108, 240, 184, 0.08); }
.page { display: grid; gap: 20px; }
.card { padding: 24px; }
.hero-panel, .board-grid, .section-heading, .panel-head, .progress-row, .micro-metrics, .action-row, .summary-actions, .site-footer {
  display: flex; gap: 16px;
}
.hero-panel, .board-grid, .site-footer { justify-content: space-between; align-items: stretch; }
.hero-panel { gap: 22px; }
.hero-copy, .note-copy, .item-note, .prose-panel p, .prose-panel li, .copy-panel p { color: var(--muted); line-height: 1.65; }
.eyebrow, .mini-label { text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.74rem; color: var(--accent); font-weight: 700; }
.hero-panel h1, .prose-panel h1, .copy-panel h2 { margin: 10px 0 12px; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; }
.prose-panel h1 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.hero-stats, .summary-metrics { display: grid; grid-template-columns: repeat(2, minmax(150px, 1fr)); gap: 12px; min-width: 310px; }
.stat-card, .lane-card, .summary-item, .legend-card {
  background: var(--panel-soft);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 16px;
}
.stat-card span, .lane-card span, .summary-item span, .legend-card span, .summary-item p { color: var(--muted); display: block; }
.stat-card strong { margin-top: 6px; display: block; font-size: 1.05rem; }
.bullet-list { margin: 0; padding-left: 20px; display: grid; gap: 10px; }
.notice-panel h2, .section-heading h2, .section-heading h3, .panel-head h2, #summaryHeadline, #roundName, #itemName { margin: 8px 0 0; }
.section-heading { justify-content: space-between; align-items: flex-start; }
.compact-head { align-items: center; }
.panel-head { justify-content: space-between; align-items: center; }
.note-copy { max-width: 430px; margin: 0; }
.round-deck, .lane-grid, .summary-list { display: grid; gap: 12px; }
.round-deck { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.round-card, .lane-button {
  width: 100%; text-align: left; background: var(--panel-soft); color: var(--text);
  border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; padding: 16px; cursor: pointer;
}
.round-card.is-active { border-color: rgba(108, 240, 184, 0.45); box-shadow: inset 0 0 0 1px rgba(108,240,184,0.22); }
.round-card p, .round-card span { color: var(--muted); }
.route-meta { display: flex; justify-content: space-between; gap: 12px; font-size: 0.86rem; }
.game-app .stack-block { display: none; }
.game-app .stack-block.active { display: grid; gap: 18px; }
.status-pill {
  margin: 0; display: inline-flex; padding: 8px 12px; border-radius: 999px; font-size: 0.82rem;
  background: rgba(108,240,184,0.12); color: var(--accent); font-weight: 700;
}
.primary-button, .ghost-button, .lane-button {
  font: inherit; border-radius: 14px; padding: 14px 18px; border: 1px solid transparent; text-decoration: none;
}
.primary-button {
  background: linear-gradient(135deg, var(--accent), #43d3ff); color: #05111d; font-weight: 800; cursor: pointer;
}
.ghost-button {
  background: rgba(255,255,255,0.03); color: var(--text); border-color: rgba(255,255,255,0.1); cursor: pointer;
}
.compact-button { padding: 10px 14px; }
.progress-row { flex-wrap: wrap; }
.progress-row > div, .mini-metric {
  min-width: 112px; background: var(--panel-soft); padding: 14px 16px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.08);
}
.progress-row strong, .mini-metric strong { display: block; margin-top: 6px; font-size: 1.05rem; }
.rush-grid { grid-template-columns: minmax(260px, 1fr) minmax(360px, 1.2fr); gap: 18px; }
.item-panel, .lane-shell { display: grid; gap: 16px; }
.tag-chip {
  display: inline-flex; align-items: center; justify-content: center; padding: 8px 12px;
  border-radius: 999px; font-weight: 700; font-size: 0.82rem; background: rgba(255,255,255,0.06);
}
.micro-metrics { flex-wrap: wrap; }
.lane-grid { grid-template-columns: repeat(2, minmax(160px, 1fr)); }
.intro-grid .lane-card { min-height: 110px; }
.lane-button { display: grid; gap: 8px; min-height: 126px; }
.lane-button .lane-top { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.lane-button small, .summary-item p { color: var(--muted); }
.lane-button[data-lane="s"] { border-color: rgba(255,209,102,0.22); }
.lane-button[data-lane="c"] { border-color: rgba(96,213,255,0.22); }
.lane-button[data-lane="f"] { border-color: rgba(255,154,213,0.24); }
.lane-button[data-lane="b"] { border-color: rgba(154,176,255,0.24); }
.summary-list { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.summary-item strong { display: block; margin-bottom: 6px; }
.prose-panel h2 { margin-top: 28px; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-meta, .disclaimer { margin: 0; color: var(--muted); }
.qa-panel p { color: var(--muted); }
@media (max-width: 860px) {
  .site-header, .hero-panel, .board-grid, .site-footer, .section-heading, .panel-head { flex-direction: column; }
  .hero-stats, .rush-grid, .lane-grid { grid-template-columns: 1fr; }
  .site-nav { width: 100%; }
}