:root{--bg:#0a0a14;--surface:#ffffff08;--border:#ffffff0f;--text:#e4e4e7;--muted:#71717a}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);justify-content:center;align-items:center;min-height:100vh;font-family:system-ui,-apple-system,sans-serif;display:flex}#app{text-align:center}header{flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:32px;margin-bottom:16px;display:flex}header h1{font-size:28px;font-weight:700}.scores{flex-wrap:wrap;gap:8px;display:flex}.score-box{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:8px;min-width:60px;padding:6px 14px}.score-box .label{text-transform:uppercase;color:var(--muted);margin-bottom:2px;font-size:10px;display:block}.score-box span:last-child{font-size:20px;font-weight:700}.best-box span:last-child{color:#06b6d4}.game-area{justify-content:center;align-items:flex-start;gap:20px;display:flex}canvas#board{background:var(--surface);border:1px solid var(--border);border-radius:12px}.panel{flex-direction:column;gap:16px;display:flex}.next-box{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:12px;padding:12px}.next-box .label{text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-size:10px;display:block}#next{display:block}.controls-hint p{color:var(--muted);font-size:10px;line-height:1.8}#restart{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:10px;margin-top:16px;padding:10px 28px;font-size:14px;font-weight:500;transition:background-color .2s,border-color .2s}#restart:hover{background:#a855f71a;border-color:#a855f74d}