:root{--cell: 28px;--bg: #f2f3f5;--panel: #ffffff;--text: #23262c;--accent: #1f6feb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,sans-serif}.app{max-width:900px;margin:0 auto;padding:16px;display:flex;flex-direction:column;gap:14px;align-items:center}header{text-align:center}header h1{margin:6px 0 2px;font-size:2.2em;letter-spacing:2px}.tagline{margin:0;opacity:.65}.status-bar{display:flex;gap:24px;flex-wrap:wrap;justify-content:center;background:var(--panel);border-radius:10px;padding:10px 18px;box-shadow:0 2px 8px #00000014}.playfield{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;justify-content:center}.board{display:grid;background:var(--panel);padding:10px;border-radius:10px;box-shadow:0 4px 14px #0000001f}.cell{position:relative;width:var(--cell);height:var(--cell)}.cell img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;image-rendering:pixelated;-webkit-user-select:none;user-select:none}.controls{display:flex;flex-direction:column;gap:8px;min-width:180px}button{font:inherit;padding:9px 14px;border:1px solid #d0d4da;border-radius:8px;background:var(--panel);cursor:pointer;transition:background-color .15s ease}button:hover:enabled{background:#e8ecf2}button:disabled{opacity:.45;cursor:default}button.accent{background:var(--accent);border-color:var(--accent);color:#fff}button.accent:hover:enabled{background:#3b82f6}button.small{padding:3px 10px;font-size:.85em}.dpad{display:none;flex-direction:column;align-items:center;gap:6px}.dpad div{display:flex;gap:6px}.dpad button{width:56px;height:44px;font-size:1.1em}@media(pointer:coarse){.dpad{display:flex}}.highscores{width:100%;max-width:560px;background:var(--panel);border-radius:10px;padding:14px 18px;box-shadow:0 2px 8px #00000014}.highscores h2{margin:0 0 8px}.highscores table{width:100%;border-collapse:collapse}.highscores th{text-align:left;font-size:.8em;text-transform:uppercase;opacity:.6;padding:4px 6px}.highscores td{padding:4px 6px;border-top:1px solid #edeff2}.highscores a{color:var(--accent);cursor:pointer;font-weight:600}footer{text-align:center;font-size:.85em;opacity:.7;max-width:640px}footer p{margin:4px 0}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;justify-content:center;align-items:center;padding:12px;z-index:100}.dialog{background:var(--panel);border-radius:12px;padding:22px;max-width:420px;width:100%;box-shadow:0 10px 30px #0000004d;display:flex;flex-direction:column;gap:10px}.dialog h2,.dialog p{margin:0}.dialog input,.dialog textarea{font:inherit;padding:9px 10px;border:1px solid #d0d4da;border-radius:8px;width:100%}.dialog-buttons{display:flex;justify-content:flex-end;gap:8px;margin-top:6px}.error{color:#c62828;font-weight:600}.success{color:#2e7d32;font-weight:600}