:root{
  --bg:#0d0221;--bg2:#1a0b3d;--card:#1e0f4a;--border:#3d2170;
  --text:#e8e8f0;--muted:#9890c8;--accent:#ff6b9d;--accent2:#c77dff;
  --green:#80ed99;--blue:#48cae4;
  --stage:#16093a;--stageBorder:#4a2c8a;
  --active:#00f5d4;--remove:#ff4757;
}
[data-theme="light"]{
  --bg:#f5f0ff;--bg2:#ebe0f9;--card:#ffffff;--border:#d5c5ed;
  --text:#2a0a4a;--muted:#7a6a95;--accent:#d63384;--accent2:#9d4edd;
  --green:#00b894;--blue:#0984e3;
  --stage:#f0e8ff;--stageBorder:#c77dff;
  --active:#00b894;--remove:#e74c3c;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:var(--accent);text-decoration:none}
a:hover{opacity:.85}

.wrap{max-width:960px;margin:0 auto;padding:0 16px}

header{display:flex;align-items:center;justify-content:space-between;padding:14px 0;flex-wrap:wrap;gap:8px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.3rem;color:var(--text);text-decoration:none}
.logo svg{flex-shrink:0}
nav{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
nav a{color:var(--muted);font-size:.92rem;text-decoration:none}
nav a:hover{color:var(--text)}
.lang-sel{position:relative}
.lang-btn{background:var(--card);border:1px solid var(--border);color:var(--text);padding:5px 12px;border-radius:20px;cursor:pointer;font-size:.85rem}
.lang-menu{display:none;position:absolute;right:0;top:120%;background:var(--card);border:1px solid var(--border);border-radius:8px;flex-direction:column;min-width:120px;z-index:100;padding:6px 0}
.lang-sel:hover .lang-menu{display:flex}
.lang-menu a{padding:6px 16px;font-size:.82rem;color:var(--text)}
.lang-menu a:hover{background:var(--bg2)}
.theme-btn{background:var(--card);border:1px solid var(--border);color:var(--text);padding:5px 10px;border-radius:20px;cursor:pointer;font-size:1rem}

.hero{text-align:center;padding:30px 0 20px}
.hero h1{font-size:2.4rem;font-weight:800;margin-bottom:8px;color:var(--accent)}
.hero p{color:var(--muted);font-size:1.05rem;max-width:640px;margin:0 auto}

.game-area{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin:20px 0}
.game-area .msg{text-align:center;color:var(--muted);font-size:.85rem;margin-top:8px;min-height:1.2em}
#board-wrap{display:flex;justify-content:center}
#game-canvas{background:var(--bg2);border-radius:8px;max-width:100%;height:auto;cursor:pointer;touch-action:none}

.highlights{margin:24px 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px}
.card h3{color:var(--accent2);margin-bottom:6px;font-size:1rem}
.card p{color:var(--muted);font-size:.88rem}

.how-to{margin:24px 0;padding:20px;background:var(--card);border:1px solid var(--border);border-radius:10px}
.how-to h3{color:var(--accent2);margin-bottom:8px;font-size:1.1rem}
.how-to p{color:var(--text);margin-bottom:8px}
.how-to ul{margin-left:20px;margin-bottom:8px}
.how-to li{margin-bottom:4px;color:var(--text)}

.controls-guide{margin:24px 0;padding:20px;background:var(--card);border:1px solid var(--border);border-radius:10px}
.controls-guide h3{color:var(--accent2);margin-bottom:12px;font-size:1.1rem}
.controls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.control-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg2);border-radius:8px}
.control-key{background:var(--accent);color:#fff;padding:3px 10px;border-radius:6px;font-size:.82rem;font-weight:600;white-space:nowrap;min-width:60px;text-align:center}
.control-desc{color:var(--text);font-size:.88rem}

.faq{margin:24px 0}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:8px;margin-bottom:8px;padding:14px 18px}
.faq summary{cursor:pointer;font-weight:600;color:var(--text);font-size:.95rem}
.faq details[open] summary{color:var(--accent2)}
.faq p{margin-top:8px;color:var(--muted);font-size:.88rem}

footer{margin-top:30px;padding:20px 0;border-top:1px solid var(--border);text-align:center}
footer p{color:var(--muted);font-size:.82rem;margin-bottom:4px}
footer a{color:var(--accent);text-decoration:none}

.cookie{position:fixed;bottom:16px;left:16px;right:16px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;z-index:200;box-shadow:0 4px 20px rgba(0,0,0,.3)}
.cookie p{font-size:.82rem;color:var(--muted);margin:0}
.cookie button{background:var(--accent);color:#fff;border:none;padding:6px 18px;border-radius:6px;cursor:pointer;font-size:.85rem;white-space:nowrap}
.cookie.hidden{display:none}

@media(max-width:640px){
  .hero h1{font-size:1.8rem}
  .controls-grid{grid-template-columns:1fr}
  .highlights{grid-template-columns:1fr}
  nav{gap:6px}
  nav a{font-size:.82rem}
  .lang-btn,.theme-btn{font-size:.78rem;padding:4px 8px}
}