/* AFF interactive summary (конспект) — shared styles */
:root {
  --bg: #0c1018;
  --bg2: #121a28;
  --panel: #182234;
  --panel2: #1e2a40;
  --text: #e9eef5;
  --muted: #8b9ab0;
  --accent: #4da3ff;
  --accent2: #7c9cff;
  --ok: #5ecf8a;
  --warn: #f5b84d;
  --danger: #f87171;
  --border: rgba(255, 255, 255, 0.07);
  --radius: 12px;
  --nav-h: 52px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

a {
  color: var(--accent2);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 16, 24, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-h);
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav__brand {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  letter-spacing: -0.02em;
}
.site-nav__brand:hover {
  text-decoration: none;
  color: var(--accent);
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: 0.82rem;
}

.site-nav__links a {
  color: var(--muted);
  padding: 0.25rem 0;
}
.site-nav__links a:hover {
  color: var(--text);
  text-decoration: none;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.15rem 3rem;
}

.hero {
  padding: 1.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.hero__lead {
  color: var(--muted);
  font-size: 1rem;
  max-width: 65ch;
  margin: 0 0 1rem;
}

.hero__sources {
  font-size: 0.78rem;
  color: var(--muted);
  max-width: 70ch;
}

section {
  margin-bottom: 2.25rem;
  scroll-margin-top: calc(var(--nav-h) + 12px);
}

section h2 {
  font-size: 1.15rem;
  font-weight: 650;
  margin: 0 0 1rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

section h3 {
  font-size: 0.98rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
  color: var(--text);
}

.card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

.card p,
.card li {
  font-size: 0.92rem;
  color: #c5d0df;
}

.card ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}
.card li {
  margin-bottom: 0.4rem;
}

.toc {
  display: grid;
  gap: 0.35rem;
  font-size: 0.88rem;
}
.toc a {
  display: block;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.toc a:hover {
  color: var(--accent2);
}

details.handbook-details {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.5rem;
}
details.handbook-details summary {
  cursor: pointer;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: 0.9rem;
  list-style: none;
}
details.handbook-details summary::-webkit-details-marker {
  display: none;
}
details.handbook-details[open] summary {
  border-bottom: 1px solid var(--border);
}
details.handbook-details .details-body {
  padding: 0.85rem 1rem 1rem;
  font-size: 0.88rem;
  color: var(--muted);
}
details.handbook-details .details-body ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
}

.pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  vertical-align: middle;
}
.pill--ok {
  background: rgba(94, 207, 138, 0.2);
  color: #86efac;
}
.pill--warn {
  background: rgba(245, 184, 77, 0.2);
  color: #fcd34d;
}

.level-grid {
  display: grid;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .level-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.level-card {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
}
.level-card strong {
  color: var(--accent2);
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
}

.checklist label {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.45rem;
  cursor: pointer;
}
.checklist input {
  margin-top: 0.25rem;
}

footer.handbook-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--muted);
}

.cta-graph {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, rgba(77, 163, 255, 0.12), rgba(124, 156, 255, 0.06));
  border: 1px solid rgba(77, 163, 255, 0.25);
  border-radius: var(--radius);
  margin: 1.5rem 0;
}
.cta-graph a {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #0a0e14;
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: 8px;
}
.cta-graph a:hover {
  text-decoration: none;
  filter: brightness(1.08);
}

kbd {
  font-family: ui-monospace, monospace;
  font-size: 0.85em;
  padding: 0.1rem 0.35rem;
  background: var(--bg2);
  border-radius: 4px;
  border: 1px solid var(--border);
}

@media print {
  .site-nav {
    position: static;
  }
  details.handbook-details {
    border: 1px solid #ccc;
  }
  details.handbook-details summary {
    list-style: none;
  }
}