/* ─────────────────────────────────────────────
   fast_code_search — GitHub Pages site styles
   ───────────────────────────────────────────── */

/* ── Self-hosted fonts ── */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url(./fonts/inter-latin-400-normal.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url(./fonts/inter-latin-500-normal.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 600;
  src: url(./fonts/inter-latin-600-normal.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 700;
  src: url(./fonts/inter-latin-700-normal.woff2) format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url(./fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url(./fonts/jetbrains-mono-latin-500-normal.woff2) format('woff2');
}

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', monospace;

  /* colours — dark (default) */
  --bg:            #0d1117;
  --bg-alt:        #161b22;
  --bg-card:       #1c2128;
  --bg-code:       #161b22;
  --border:        #30363d;
  --text:          #e6edf3;
  --text-muted:    #8b949e;
  --text-link:     #58a6ff;
  --accent:        #f78166;   /* coral / rust */
  --accent2:       #3fb950;   /* green */
  --accent3:       #d2a8ff;   /* purple / semantic */
  --badge-bg:      #21262d;
  --hero-glow:     rgba(247, 129, 102, 0.15);
  --shadow:        0 4px 24px rgba(0,0,0,.4);
}

[data-theme="light"] {
  --bg:            #ffffff;
  --bg-alt:        #f6f8fa;
  --bg-card:       #ffffff;
  --bg-code:       #f6f8fa;
  --border:        #d0d7de;
  --text:          #1f2328;
  --text-muted:    #57606a;
  --text-link:     #0969da;
  --accent:        #cf222e;
  --accent2:       #116329;
  --accent3:       #7c2d12;
  --badge-bg:      #f6f8fa;
  --hero-glow:     rgba(207, 34, 46, 0.08);
  --shadow:        0 4px 24px rgba(0,0,0,.12);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

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

code, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color .15s, background .15s;
  text-decoration: none;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); background: var(--bg-alt); }
.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
}
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: background .15s;
  color: var(--text);
}
.theme-toggle:hover { background: var(--bg-alt); }

/* ── Hero ── */
.hero {
  padding: 80px 0 72px;
  text-align: center;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, var(--hero-glow), transparent);
  border-bottom: 1px solid var(--border);
}
.hero-badge {
  display: inline-block;
  background: var(--badge-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto 28px;
}
.hero-subtitle strong { color: var(--text); }
.badge-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}
.badge-row img { height: 20px; border-radius: 4px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: opacity .15s, transform .1s;
  cursor: pointer;
  border: none;
}
.btn:hover { opacity: .85; transform: translateY(-1px); text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

/* ── Sections ── */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}
.section-subtitle {
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 48px;
  font-size: 1.05rem;
}
.section-subtitle a { color: var(--text-link); }

/* ── Engine grid ── */
.engine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.engine-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform .2s;
}
.engine-card:hover { transform: translateY(-4px); }
.engine-keyword { border-top: 3px solid var(--accent); }
.engine-semantic { border-top: 3px solid var(--accent3); }
.engine-icon { font-size: 2rem; margin-bottom: 12px; }
.engine-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 4px; }
.engine-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.engine-card p { color: var(--text-muted); margin-bottom: 16px; }
.engine-features {
  list-style: none;
  margin-bottom: 16px;
}
.engine-features li {
  padding: 4px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.engine-features li::before {
  content: "▸ ";
  color: var(--accent2);
}
.engine-example {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 0 !important;
}

/* ── Feature grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: transform .2s;
}
.feature-card:hover { transform: translateY(-3px); }
.feature-icon { font-size: 1.6rem; margin-bottom: 10px; }
.feature-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.875rem; }
.feature-card code {
  background: var(--bg-code);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.8em;
}

/* ── Test results ── */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.status-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  text-decoration: none;
  transition: transform .2s, border-color .2s;
}
.status-card:hover { transform: translateY(-3px); border-color: var(--text-link); text-decoration: none; }
.status-badge-img { height: 20px; }
.status-label { font-weight: 600; font-size: 0.95rem; color: var(--text); }
.status-sublabel { font-size: 0.8rem; color: var(--text-muted); }

.matrix-table-wrap { overflow-x: auto; margin-bottom: 16px; }
.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.matrix-table th, .matrix-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: center;
}
.matrix-table th {
  background: var(--bg-alt);
  font-weight: 600;
  color: var(--text-muted);
}
.matrix-table td:first-child { text-align: left; }
.matrix-table tr:hover td { background: var(--bg-alt); }
.cell-pass { color: var(--accent2); font-size: 1.1rem; }
.cell-na   { color: var(--text-muted); }
.table-note { font-size: 0.85rem; color: var(--text-muted); }
.table-note a { color: var(--text-link); }

/* ── Benchmarks ── */
.bench-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.bench-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 16px;
  text-align: center;
}
.bench-stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}
.bench-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

.bench-suites {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.bench-suite-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.bench-suite-card h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--accent);
}
.bench-suite-card p { font-size: 0.875rem; color: var(--text-muted); }

.bench-chart-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
}
.bench-iframe {
  width: 100%;
  min-height: 520px;
  border: none;
  display: block;
}
.bench-fallback {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}
.bench-fallback p { margin-bottom: 16px; }

/* ── Coverage ── */
.coverage-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 700px) { .coverage-grid { grid-template-columns: 1fr; } }
.coverage-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
}
.coverage-sunburst {
  max-width: 160px;
  border-radius: 50%;
  margin-bottom: 16px;
}
.coverage-badge-wrap { margin-bottom: 12px; }
.coverage-badge-wrap img { height: 20px; }
.coverage-card p { font-size: 0.875rem; color: var(--text-muted); }
.coverage-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.coverage-note { font-size: 0.85rem; color: var(--text-muted); margin-top: 16px; }
.coverage-note a { color: var(--text-link); }

/* ── Code blocks ── */
.code-block {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  line-height: 1.6;
  color: var(--text);
  font-size: 0.85rem;
  white-space: pre;
}

/* ── Changelog ── */
.changelog-list { display: flex; flex-direction: column; gap: 4px; }
.release-entry {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  transition: border-color .2s;
}
.release-entry:hover { border-color: var(--text-link); }
.release-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}
.release-version {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
}
.release-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.release-link { font-size: 0.85rem; }
.release-entry p { font-size: 0.9rem; color: var(--text-muted); }
.release-entry code {
  background: var(--bg-code);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ── Getting started ── */
.gs-steps { display: flex; flex-direction: column; gap: 24px; margin-bottom: 40px; }
.gs-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.gs-step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gs-step-body { flex: 1; }
.gs-step-body h4 { font-weight: 600; margin-bottom: 12px; }
.gs-links { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Footer ── */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}
.footer a { color: var(--text-link); }
.footer-sub { margin-top: 6px; font-size: 0.8rem; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav-links { gap: 2px; }
  .nav-links li { display: none; }
  .nav-links li:last-child,
  .nav-links li:nth-last-child(2) { display: flex; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 48px 0; }
  .gs-step { flex-direction: column; }
  .coverage-grid { grid-template-columns: 1fr; }
}