:root{--size:3;--panel-width:clamp(104px,25vw,180px);--gap:clamp(8px,2vw,18px);--radius:16px;--bg:#0f172a;--panel:#111827;--text:#f8fafc;--muted:#94a3b8;--accent:#38bdf8}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body{min-height:100dvh;overscroll-behavior:none}button{font:inherit}.hidden{display:none!important}.app-shell{min-height:100dvh;padding:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left))}.home-screen{min-height:calc(100dvh - 16px);display:grid;place-items:center}.home-card{width:min(92vw,560px);padding:28px;background:#111827;border:1px solid #ffffff18;border-radius:24px;box-shadow:0 20px 60px #0006;text-align:center}.home-card h1{font-size:clamp(2rem,8vw,3.2rem);margin:0 0 8px}.home-card p{color:#cbd5e1;line-height:1.45}.level-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.level-grid button{padding:20px 10px;border:0;border-radius:16px;background:#38bdf8;color:#082f49;font-size:1.45rem;font-weight:850;cursor:pointer}.level-grid span{display:block;font-size:.72rem;font-weight:650;opacity:.75;margin-top:3px}.secondary-btn,.danger-btn{width:100%;margin-top:10px;border:1px solid #ffffff1f;border-radius:12px;padding:12px;background:#1e293b;color:#fff;font-weight:700}.danger-btn{background:#7f1d1d}.ios-install{font-size:.85rem;background:#0b1220;padding:12px;border-radius:12px}.game-layout{min-height:calc(100dvh - 16px);display:grid;grid-template-columns:minmax(0,1fr) var(--panel-width);gap:var(--gap);align-items:center}.board-zone{min-width:0;display:grid;place-items:center;position:relative}.board{position:relative;width:min(100%,calc(100dvh - 24px));aspect-ratio:1;background:#020617;border:2px solid #ffffff2e;border-radius:var(--radius);box-shadow:0 18px 50px #0006;overflow:hidden;touch-action:none}.tile{position:absolute;width:calc(100% / var(--size));height:calc(100% / var(--size));background-repeat:no-repeat;border:1px solid #ffffff29;cursor:grab;transition:transform 150ms cubic-bezier(.2,.8,.2,1),opacity 180ms ease;will-change:transform;user-select:none;-webkit-user-select:none}.complete-piece{pointer-events:none}.side-panel{align-self:stretch;display:flex;flex-direction:column;gap:12px;min-width:0}.preview-wrap{padding:5px;background:#ffffff14;border-radius:12px}.preview{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;background:#020617}.game-info,.controls{display:grid;gap:8px}.stat{background:var(--panel);border:1px solid #ffffff14;border-radius:12px;padding:10px}.stat span{display:block;color:var(--muted);font-size:clamp(.68rem,2vw,.82rem)}.stat strong{display:block;margin-top:2px;font-size:clamp(.95rem,3vw,1.25rem)}.controls button,.primary-btn{border:0;border-radius:12px;padding:11px 10px;font-weight:750;background:#e2e8f0;color:#0f172a;cursor:pointer}.controls button:last-child{background:#1e293b;color:#fff;border:1px solid #ffffff1f}.primary-btn{background:var(--accent)}.fx-canvas{position:fixed;inset:0;width:100vw;height:100dvh;pointer-events:none;z-index:40}.win-message{position:fixed;left:50%;top:50%;translate:-50% -50%;z-index:50;opacity:0;transform:scale(.9);pointer-events:none;transition:.25s}.win-message.show{opacity:1;transform:scale(1);pointer-events:auto}.win-message>div{background:#0f172af2;border:1px solid #ffffff26;border-radius:18px;padding:22px 28px;text-align:center;box-shadow:0 20px 70px #0007}.win-message strong{display:block;font-size:1.7rem}.win-message span{display:block;color:#cbd5e1;margin:7px 0 15px}.modal{position:fixed;inset:0;z-index:80;background:#020617d9;display:grid;place-items:center;padding:16px}.modal-card{position:relative;width:min(94vw,520px);max-height:88dvh;overflow:auto;background:#111827;border:1px solid #ffffff1f;border-radius:20px;padding:24px}.close-btn{position:absolute;right:12px;top:10px;border:0;background:transparent;color:#fff;font-size:2rem}.modal h3{margin-bottom:6px}.modal ol{margin-top:0;padding-left:28px}.modal li{padding:5px 0}.modal li span{float:right;color:#94a3b8}.no-score{color:#64748b}.start-overlay{position:absolute;inset:0;display:grid;place-items:center;background:#020617b8;z-index:20;border-radius:var(--radius)}.start-card{width:min(86%,360px);background:#0f172af2;border:1px solid #ffffff1f;border-radius:18px;padding:22px;text-align:center}@media(orientation:portrait) and (max-width:600px){:root{--panel-width:clamp(98px,27vw,128px);--gap:8px}.app-shell{padding:6px}.game-layout{min-height:calc(100dvh - 12px)}.controls button{padding:9px 7px;font-size:.78rem}.stat{padding:8px}}@media(max-height:520px){.side-panel{gap:6px}.stat{padding:6px}.controls{gap:5px}.controls button{padding:6px}}