/* PlayCove site styles.
   Layout: a single centered column (max 1180px); game pages add a 300px sidebar on wide screens. */
:root {
  --bg: #edf1f3;
  --surface: #ffffff;
  --surface-2: #e2e8ec;
  --text: #15212b;
  --muted: #54636f;
  --border: #d0d9df;
  --accent: #0a7480;
  --accent-ink: #ffffff;
  --accent-soft: #d3ecee;
  --amber: #c98300;
  --amber-soft: #fbedcc;
  --good: #1a7f4b;
  --bad: #cc3426;
  --overlay: rgb(237 241 243 / .78);
  --shadow: 0 1px 2px rgb(21 33 43 / .06), 0 8px 24px rgb(21 33 43 / .08);
  --radius: 14px;
  /* physical game materials: same in both themes */
  --wood: #e0b26a;
  --wood-2: #c9934a;
  --wood-line: #5a3b16;
  --felt: #1d6a4c;
  --felt-2: #175a40;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: ui-rounded, "SF Pro Rounded", "Nunito", "Arial Rounded MT Bold", var(--font);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d151b;
    --surface: #152029;
    --surface-2: #1d2b36;
    --text: #e6edf1;
    --muted: #9aabb8;
    --border: #2a3a46;
    --accent: #3cc3cf;
    --accent-ink: #062226;
    --accent-soft: #143c43;
    --amber: #f2b637;
    --amber-soft: #3a2f14;
    --good: #46c487;
    --bad: #ff6b5c;
    --overlay: rgb(13 21 27 / .8);
    --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .3);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d151b;
  --surface: #152029;
  --surface-2: #1d2b36;
  --text: #e6edf1;
  --muted: #9aabb8;
  --border: #2a3a46;
  --accent: #3cc3cf;
  --accent-ink: #062226;
  --accent-soft: #143c43;
  --amber: #f2b637;
  --amber-soft: #3a2f14;
  --good: #46c487;
  --bad: #ff6b5c;
  --overlay: rgb(13 21 27 / .8);
  --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .3);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img, svg { max-width: 100%; }
a { color: var(--accent); }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; text-wrap: balance; }

.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* ---------- header ---------- */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.header-in { display: flex; align-items: center; gap: 16px; padding-block: 10px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font: 800 1.25rem var(--font-display); letter-spacing: -.01em; }
.brand svg { width: 32px; height: 32px; flex: none; }
.nav { display: flex; gap: 4px; margin-left: 8px; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 600; padding: 6px 10px; border-radius: 8px; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.lang-switch { font-weight: 700; text-decoration: none; padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--text); font-size: .9rem; }
.lang-switch:hover { border-color: var(--accent); }
.icon-btn { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--border); background: transparent; color: var(--text); cursor: pointer; }
.icon-btn svg { width: 18px; height: 18px; }
@media (max-width: 560px) { .nav { display: none; } }

.lang-banner { background: var(--amber-soft); color: var(--text); font-size: .92rem; }
.lang-banner .wrap { display: flex; gap: 12px; align-items: center; padding-block: 8px; flex-wrap: wrap; }
.lang-banner a { font-weight: 700; }
.lang-banner button { margin-left: auto; background: none; border: 0; color: var(--muted); font-size: 1.2rem; cursor: pointer; }

main { flex: 1; padding-block: 24px 48px; }

/* ---------- home ---------- */
.hero { padding-block: 12px 8px; max-width: 720px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 8px; letter-spacing: -.02em; }
.hero p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 20px 0 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 999px; padding: 6px 14px; font: 600 .92rem var(--font); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.search { margin-left: auto; min-width: 0; flex: 0 1 260px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; }
@media (max-width: 600px) { .search { margin-left: 0; flex: 1 1 100%; } }
.section-title { font-size: 1.15rem; margin: 28px 0 12px; }

.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.game-card {
  display: flex; gap: 14px; align-items: center; padding: 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  text-decoration: none; color: var(--text); transition: transform .15s, box-shadow .15s, border-color .15s;
}
.game-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--accent); }
.game-thumb { flex: none; width: 64px; height: 64px; border-radius: 12px; background: var(--tint, var(--surface-2)); display: grid; place-items: center; overflow: hidden; }
.game-thumb svg { width: 100%; height: 100%; display: block; }
.game-info { display: flex; flex-direction: column; min-width: 0; }
.game-info b { font: 700 1.05rem var(--font-display); }
.game-info small { color: var(--muted); font-size: .86rem; line-height: 1.35; }
.game-grid.compact { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
@media (max-width: 520px) {
  .game-grid, .game-grid.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .game-card { flex-direction: column; align-items: flex-start; gap: 8px; padding: 10px; }
  .game-card .game-thumb { width: 100%; height: auto; aspect-ratio: 16 / 10; }
  .game-card .game-thumb svg { width: auto; height: 100%; margin: 0 auto; }
}
.empty { color: var(--muted); }
.home-about { margin-top: 40px; max-width: 760px; color: var(--muted); }
.home-about h2 { color: var(--text); font-size: 1.25rem; }

/* ---------- game page ---------- */
.crumbs { font-size: .9rem; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: var(--muted); }
.game-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; }
@media (min-width: 1100px) { .game-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; } }
.game-main h1 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); margin: 0; letter-spacing: -.02em; }
.game-main .lead { color: var(--muted); margin: 6px 0 16px; }
.game-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  padding: 16px; box-shadow: var(--shadow); min-height: 320px;
}
@media (max-width: 480px) { .game-box { padding: 12px 8px; border-radius: 16px; } }
.game-side { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
@media (min-width: 1100px) { .game-side .sticky { position: sticky; top: 16px; } }
.side-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.side-card h2 { font-size: 1rem; margin: 0 0 8px; }
.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.side-list a { display: flex; align-items: center; gap: 10px; padding: 6px; border-radius: 10px; text-decoration: none; color: var(--text); font-weight: 600; }
.side-list a:hover { background: var(--surface-2); }
.side-list .game-thumb { width: 36px; height: 36px; border-radius: 8px; }
.related { margin-top: 40px; }
.related h2 { font-size: 1.25rem; }

.guide { margin-top: 32px; max-width: 760px; }
.guide h2 { font-size: 1.3rem; margin: 28px 0 8px; }
.guide h3 { font-size: 1.05rem; margin: 18px 0 4px; }
.guide p, .guide li { color: var(--text); }
.guide ul, .guide ol { padding-left: 1.3em; }
.guide li { margin: 4px 0; }
.guide kbd, .prose kbd { font: 600 .85em var(--font); background: var(--surface-2); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 6px; padding: 1px 6px; }

.guide pre, .prose pre { overflow-x: auto; background: var(--surface-2); border-radius: 10px; padding: 10px 16px; font: 700 1rem/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .3em; width: max-content; max-width: 100%; }
.article h1 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
.guide-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
@media (max-width: 400px) { .guide-list { grid-template-columns: minmax(0, 1fr); } }
.guide-card, .cta {
  display: flex; gap: 14px; align-items: center; padding: 14px; text-decoration: none; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); transition: border-color .15s, box-shadow .15s;
}
.guide-card:hover, .cta:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.guide-card span, .cta span { min-width: 0; }
.guide-card b, .cta b { display: block; font: 700 1rem var(--font-display); }
.guide-card small, .cta small { display: block; color: var(--muted); font-size: .86rem; line-height: 1.4; }
.guide-card .game-thumb, .cta .game-thumb { width: 52px; height: 52px; }
.cta { background: var(--accent-soft); border-color: transparent; margin: 18px 0; }
.cta-go { margin-left: auto; font-size: 1.4rem; color: var(--accent); }
.side-guide { margin: 0; font-weight: 600; }
.prose { max-width: 760px; }
.prose h1 { font-size: 2rem; margin-top: 0; }
.prose h2 { font-size: 1.25rem; margin-top: 28px; }
.prose .muted { color: var(--muted); }

/* ---------- ads ---------- */
.ad { margin: 28px 0; text-align: center; min-height: 100px; }
.ad-label { display: block; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.ad-placeholder { display: grid; place-items: center; border: 2px dashed var(--border); border-radius: 12px; color: var(--muted); font-size: .85rem; min-height: 120px; }
.game-side .ad { margin: 0; }
.game-side .ad-placeholder { min-height: 250px; }

/* ---------- footer ---------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); font-size: .92rem; color: var(--muted); }
.foot-in { display: flex; flex-wrap: wrap; gap: 16px 32px; padding-block: 24px; align-items: center; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.foot-nav a { color: var(--muted); }
.foot-in .copy { margin: 0 0 0 auto; }
@media (max-width: 640px) { .foot-in .copy { margin: 0; } }

/* =========================================================
   Shared game UI (used by every game script)
   ========================================================= */
.g-root { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.g-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; width: 100%; }
.g-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.stat { background: var(--surface-2); border-radius: 10px; padding: 4px 12px; min-width: 76px; text-align: center; line-height: 1.25; }
.stat span { display: block; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; }
.stat b { font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.g-stage { position: relative; width: 100%; max-width: var(--board-max, 560px); margin: 0 auto; }
.g-status { min-height: 1.6em; font-weight: 700; text-align: center; color: var(--muted); }
.g-status.good { color: var(--good); }
.g-status.bad { color: var(--bad); }
.g-canvas { display: block; touch-action: none; border-radius: 10px; }
.g-help { font-size: .85rem; color: var(--muted); text-align: center; margin: 0; }

.btn {
  font: 600 .92rem var(--font); padding: 8px 14px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  transition: background .12s, border-color .12s; touch-action: manipulation;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: default; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.06); }
.btn.on { background: var(--accent-soft); border-color: var(--accent); }
.g-select { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; color: var(--muted); font-weight: 600; }
.g-select select {
  font: 600 .92rem var(--font); padding: 7px 28px 7px 10px; border-radius: 10px;
  border: 1px solid var(--border); background-color: var(--surface); color: var(--text); cursor: pointer;
}

.g-overlay {
  position: absolute; inset: 0; z-index: 30; display: grid; place-items: center;
  background: var(--overlay); border-radius: inherit; animation: g-fade .2s ease-out;
}
.g-card { background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 16px; padding: 20px 24px; text-align: center; max-width: min(92%, 360px); }
.g-card h3 { margin: 0 0 6px; font-size: 1.4rem; }
.g-card p { margin: 0 0 14px; color: var(--muted); }
.g-card-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
@keyframes g-fade { from { opacity: 0; } to { opacity: 1; } }

.g-pad { display: none; gap: 8px; justify-content: center; }
.g-pad .btn { min-width: 56px; min-height: 48px; font-size: 1.2rem; }
@media (pointer: coarse) { .g-pad { display: flex; flex-wrap: wrap; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}