/* Block Blast — Style */
:root{--bg:#f5f0e6;--card:#ffffff;--text:#2c3e50;--muted:#7f8c8d;--accent:#f59e0b;--accent2:#ef4444;--border:#e0e0d4;--shadow:0 2px 12px rgba(0,0,0,.08);--grid-bg:#f0f0e8}
[data-theme="dark"]{--bg:#0f0f1e;--card:#1a1a2e;--text:#e8e8f0;--muted:#8b8ba7;--accent:#f59e0b;--accent2:#ef4444;--border:#2a2a4a;--shadow:0 2px 12px rgba(0,0,0,.3);--grid-bg:#1e1e2e}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;transition:background .3s,color .3s}
.wrap{max-width:960px;margin:0 auto;padding:16px}
header{display:flex;justify-content:space-between;align-items:center;padding:12px 0;flex-wrap:wrap;gap:8px}
.logo{font-size:1.6rem;font-weight:800;color:var(--accent);display:flex;align-items:center;gap:8px;text-decoration:none}
.logo svg{width:32px;height:32px}
nav{display:flex;gap:16px;align-items:center}
nav a{color:var(--muted);text-decoration:none;font-size:.9rem;font-weight:500}
nav a:hover{color:var(--accent)}
.lang-sel{position:relative}
.lang-btn{background:var(--card);border:1px solid var(--border);color:var(--text);padding:6px 14px;border-radius:8px;cursor:pointer;font-size:.9rem;display:flex;align-items:center;gap:4px}
.lang-menu{display:none;position:absolute;right:0;top:100%;background:var(--card);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);z-index:100;min-width:140px;overflow:hidden}
.lang-menu a{display:block;padding:8px 16px;color:var(--text);text-decoration:none;font-size:.9rem}
.lang-menu a:hover{background:var(--bg)}
.lang-sel:hover .lang-menu{display:block}
.theme-btn{background:var(--card);border:1px solid var(--border);color:var(--text);width:38px;height:38px;border-radius:8px;cursor:pointer;font-size:1.1rem;display:flex;align-items:center;justify-content:center}
.hero{text-align:center;padding:20px 0}
.hero h1{font-size:2rem;margin-bottom:6px}
.hero p{color:var(--muted);font-size:1.05rem;max-width:640px;margin:0 auto}
.game-area{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:24px;margin:20px 0}
.score-row{display:flex;gap:12px;justify-content:center;margin-bottom:16px}
.score-box{background:var(--bg);border-radius:8px;padding:8px 20px;text-align:center;min-width:100px}
.score-box .label{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.score-box .val{font-size:1.4rem;font-weight:800;color:var(--accent);transition:transform .15s}
.score-box .val.bump{transform:scale(1.2)}
#board-wrap{display:flex;justify-content:center;margin:16px 0}
#game-canvas{border-radius:10px;cursor:pointer;max-width:100%;height:auto;touch-action:none;box-shadow:0 4px 20px rgba(0,0,0,.12)}
[data-theme="dark"] #game-canvas{box-shadow:0 4px 20px rgba(0,0,0,.4)}
.tray{display:flex;gap:12px;justify-content:center;margin:16px 0;min-height:70px}
.tray-slot{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:8px 12px;min-width:70px;min-height:60px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .15s}
.tray-slot:hover{transform:scale(1.05);border-color:var(--accent)}
.tray-slot:empty{opacity:.4}
.tray-block{cursor:grab}
.msg{text-align:center;font-size:.9rem;padding:6px;border-radius:6px;margin:8px 0;display:none}
.msg.show{display:block}
.msg.err{background:rgba(239,68,68,.15);color:#ef4444}
.msg.ok{background:rgba(16,185,129,.15);color:#10b981}
.action-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.action-btn{background:var(--card);border:1px solid var(--border);color:var(--text);padding:8px 18px;border-radius:8px;cursor:pointer;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:4px;transition:opacity .2s}
.action-btn:hover{opacity:.8;background:var(--accent);color:#fff;border-color:var(--accent)}
.how-to{background:var(--card);border-radius:12px;padding:16px 20px;margin:16px 0;box-shadow:var(--shadow)}
.how-to h3{color:var(--accent);margin-bottom:8px;font-size:1rem}
.how-to p{color:var(--muted);font-size:.9rem}
.highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:24px 0}
.card{background:var(--card);border-radius:12px;box-shadow:var(--shadow);padding:20px;transition:transform .2s}
.card:hover{transform:translateY(-2px)}
.card h3{font-size:1.05rem;color:var(--accent);margin-bottom:6px}
.card p{color:var(--muted);font-size:.9rem}
.faq{margin:24px 0}
.faq details{background:var(--card);border-radius:8px;box-shadow:var(--shadow);margin-bottom:8px;padding:14px 18px;cursor:pointer}
.faq summary{font-weight:600;font-size:.95rem}
.faq details[open] summary{color:var(--accent)}
.faq p{margin-top:8px;color:var(--muted);font-size:.9rem}
footer{text-align:center;padding:24px 0;color:var(--muted);font-size:.85rem}
footer a{color:var(--accent);text-decoration:none;margin:0 8px}
footer a:hover{text-decoration:underline}
.cookie{position:fixed;bottom:0;left:0;right:0;background:var(--card);border-top:1px solid var(--border);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;z-index:200;box-shadow:0 -2px 12px rgba(0,0,0,.1)}
.cookie.hidden{display:none}
.cookie p{font-size:.85rem;color:var(--muted);margin:0}
.cookie button{background:var(--accent);color:#fff;border:none;padding:6px 16px;border-radius:6px;cursor:pointer;font-size:.85rem}
.card h3{font-size:1rem;color:var(--text);margin-top:16px}
.card ul{color:var(--muted);line-height:1.8}
.card strong{color:var(--text)}
@media(max-width:600px){.hero h1{font-size:1.4rem}.score-box{min-width:80px;padding:6px 14px}.score-box .val{font-size:1.1rem}.game-area{padding:16px}.card{padding:14px}.tray-slot{min-width:60px;padding:6px 8px}}