/* Layout idea: ink-wash studio page — rice-paper ground, ink type, vermilion seal accent, bamboo-green secondary; one centered column, game cards side by side on desktop. */
:root{
  --paper:#F8F5EE;
  --card:#FBFAF6;
  --ink:#1E1E1E;
  --muted:#5E625F;
  --line:#D9D4C7;
  --seal:#B8322A;      /* vermilion seal / red general */
  --seal-ink:#FFFFFF;
  --bamboo:#2C5E4F;
  --display:"Noto Serif", Georgia, "Times New Roman", serif;
  --body:"Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#121413; --card:#1B1E1C; --ink:#ECE8DE; --muted:#A3A79F; --line:#2E332F;
    --seal:#E0574C; --seal-ink:#1A0806; --bamboo:#7DB38F; color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --paper:#121413; --card:#1B1E1C; --ink:#ECE8DE; --muted:#A3A79F; --line:#2E332F;
  --seal:#E0574C; --seal-ink:#1A0806; --bamboo:#7DB38F; color-scheme: dark;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6}
a{color:var(--seal)}
a:focus-visible,button:focus-visible{outline:3px solid var(--bamboo);outline-offset:2px}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}

/* Header */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--display);font-weight:700;font-size:20px}
.seal{width:36px;height:36px;border-radius:8px;background:var(--seal);color:var(--seal-ink);display:grid;place-items:center;font-family:var(--display);font-size:20px;font-weight:700}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang button{font:600 13px var(--body);background:transparent;color:var(--muted);border:0;padding:6px 12px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}

/* Hero */
.hero{padding:40px 0 28px;border-bottom:1px solid var(--line)}
.hero h1{font-family:var(--display);font-size:clamp(32px,6vw,52px);line-height:1.1;margin:0 0 12px;text-wrap:balance;font-weight:700}
.hero p{color:var(--muted);max-width:60ch;margin:0;font-size:18px}

/* Games */
.games{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;padding:32px 0}
.game{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:12px}
.game-head{display:flex;align-items:center;gap:14px}
.piece{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-family:var(--display);font-size:32px;font-weight:700;flex:none;border:3px solid currentColor;box-shadow:inset 0 0 0 4px var(--card),inset 0 0 0 5px currentColor}
.piece.red{color:var(--seal)}
.piece.black{color:var(--ink)}
.game h2{font-family:var(--display);font-size:24px;margin:0;line-height:1.2}
.status{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;border-radius:999px;padding:3px 10px;margin-top:4px}
.status.live{background:var(--bamboo);color:var(--paper)}
.status.soon{border:1px solid var(--muted);color:var(--muted)}
.game ul{margin:0;padding-left:20px;color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:6px}
.btn{display:inline-flex;align-items:center;font-weight:700;font-size:15px;text-decoration:none;border-radius:999px;padding:10px 18px}
.btn.primary{background:var(--seal);color:var(--seal-ink)}
.btn.ghost{border:1px solid var(--line);color:var(--ink)}
.btn.disabled{background:var(--line);color:var(--muted);pointer-events:none}

/* About + footer */
.about{padding:8px 0 32px;max-width:65ch}
.about h2{font-family:var(--display);font-size:22px;margin:0 0 6px}
.about p{margin:0;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:20px 0 40px;font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
footer nav{display:flex;flex-wrap:wrap;gap:16px}

/* Policy pages */
.doc{max-width:720px;padding:24px 0 48px}
.doc h1{font-family:var(--display);font-size:clamp(28px,5vw,40px);line-height:1.15;margin:8px 0 4px;text-wrap:balance}
.doc .date{color:var(--muted);margin:0 0 24px}
.doc h2{font-family:var(--display);font-size:21px;margin:28px 0 6px}
.doc p,.doc li{max-width:65ch}
.doc ul{padding-left:20px}
.back{font-size:14px;text-decoration:none}

[data-l]{display:none}
html[lang="vi"] [data-l="vi"], html[lang="en"] [data-l="en"]{display:revert}