/* Shared styles for the static SEO pages (/quoridor-online/, /how-to-play/, ...).
   These pages are plain HTML so search engines can read them without running JS. */
:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #5b6b82;
  --border: #e2e8f0;
  --accent: #0ea5e9;
  --accent-ink: #ffffff;
  --pawn-a: #f43f5e;
  --pawn-b: #0ea5e9;
  --wall: #334155;
  --goal: #10b981;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1024;
    --card: #141b3a;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #26304f;
    --wall: #cbd5e1;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 'Vazirmatn', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; }
.brand img { width: 32px; height: 32px; }
.site-nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }

main { padding: 32px 0 48px; }
.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: var(--muted); }
h1 { font-size: clamp(28px, 6vw, 42px); line-height: 1.15; margin: 0 0 12px; }
h2 { font-size: 24px; margin: 40px 0 10px; line-height: 1.3; }
h3 { font-size: 19px; margin: 24px 0 6px; }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 24px; }

.cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 800; font-size: 18px; text-decoration: none;
  padding: 14px 26px; border-radius: 12px;
  box-shadow: 0 8px 24px -8px rgba(14, 165, 233, .6);
}
.cta:hover { filter: brightness(1.08); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 8px 0 28px; }
.cta-note { font-size: 14px; color: var(--muted); }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 16px 0; }
.grid .card h3 { margin-top: 0; }
.grid .card p { margin: 0; color: var(--muted); font-size: 16px; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 16px; }
th, td { text-align: start; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 700; }
.table-scroll { overflow-x: auto; }

figure { margin: 24px 0; }
figure svg { width: 100%; max-width: 360px; height: auto; display: block; margin: 0 auto; }
figcaption { text-align: center; color: var(--muted); font-size: 14px; margin-top: 8px; }

details { border-bottom: 1px solid var(--border); padding: 12px 0; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 8px 0 0; color: var(--muted); }

.site-footer { border-top: 1px solid var(--border); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 10px; }
.site-footer a { color: var(--muted); }

/* Language switcher */
.lang-nav { display: flex; flex-wrap: wrap; gap: 4px; width: 100%; font-size: 13px; }
.lang-nav a { color: var(--muted); text-decoration: none; padding: 2px 8px; border: 1px solid var(--border); border-radius: 999px; }
.lang-nav a:hover { color: var(--text); }
.lang-nav a[aria-current="true"] { color: var(--text); border-color: var(--accent); }
@media (min-width: 760px) { .lang-nav { width: auto; } }

/* Persian: Vazirmatn reads better slightly larger with more line spacing */
html[lang="fa"] body { font-size: 17.5px; line-height: 1.85; }