:root{--bg: #0b0e17;--panel: #171c2b;--panel-border: #2a3350;--grid-line: #1c2338;--cell-empty: #10142a;--text: #e8ecff;--text-dim: #8a93b8;--accent: #4d7cfe;--cell-size: 28px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:radial-gradient(circle at 50% 0%,#131a30 0%,var(--bg) 60%);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;min-height:100vh;display:flex;align-items:center;justify-content:center}.app{display:flex;align-items:center;justify-content:center;padding:16px}.game{display:flex;gap:20px;align-items:flex-start}.game__board-wrap{position:relative;padding:6px;background:var(--panel);border:2px solid var(--panel-border);border-radius:8px}.board{display:grid;grid-template-columns:repeat(10,var(--cell-size));grid-template-rows:repeat(20,var(--cell-size));gap:1px;background:var(--grid-line)}.board__cell{background:var(--cell-empty)}.board__cell--filled{background:var(--cell-color, #555);border-radius:2px;box-shadow:inset 0 2px 2px #ffffff59,inset 0 -2px 2px #0006}.board__cell--ghost{background:transparent;box-shadow:none;border:2px solid var(--cell-color, #888);opacity:.4;border-radius:2px}.game__side{display:flex;flex-direction:column;gap:16px;min-width:140px}.preview,.score-panel{background:var(--panel);border:2px solid var(--panel-border);border-radius:8px;padding:12px}.preview__grid{display:grid;gap:2px;justify-content:center}.preview__cell{width:calc(var(--cell-size) * .7);height:calc(var(--cell-size) * .7);background:transparent}.preview__cell--filled{background:var(--cell-color, #555);border-radius:2px;box-shadow:inset 0 2px 2px #ffffff59,inset 0 -2px 2px #0006}.score-panel{display:flex;flex-direction:column;gap:12px}.score-panel__item{display:flex;flex-direction:column;gap:2px}.score-panel__label{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-dim)}.score-panel__value{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:16px;background:#080a12e0;border-radius:6px;z-index:10}.overlay--pause{background:#080a12eb}.overlay__title{margin:0;font-size:40px;letter-spacing:.12em;color:var(--accent);text-shadow:0 0 18px rgba(77,124,254,.55)}.overlay__subtitle{margin:0;color:var(--text-dim)}.overlay__controls{margin:8px 0;padding:0;list-style:none;font-size:14px;color:var(--text);display:flex;flex-direction:column;gap:4px}.overlay__prompt{margin:0;font-weight:600;color:var(--text);animation:pulse 1.4s ease-in-out infinite}.overlay__final{margin:0;font-size:18px}.overlay__final-score{font-weight:700;color:var(--accent)}.overlay__final-meta{margin:0;color:var(--text-dim);font-size:14px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}