:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--bg: #050508;--surface: #0c0c14;--border: rgba(255,255,255,.06);--text: #e8e8f0;--text-dim: rgba(255,255,255,.45);--purple: #6b5ce7;--purple-glow: rgba(107,92,231,.3);--cyan: #22d3ee;--amber: #fbbf24}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;min-height:100dvh;background:var(--bg);color:var(--text);overflow:hidden;user-select:none;-webkit-user-select:none;touch-action:none}.menu-screen{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.menu-content{text-align:center;z-index:1;display:flex;flex-direction:column;align-items:center;gap:1.5rem}.title-glow{position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,var(--purple-glow) 0%,transparent 70%);filter:blur(60px);pointer-events:none;animation:pulse-glow 4s ease-in-out infinite}@keyframes pulse-glow{0%,to{opacity:.4;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}.game-title{font-size:clamp(2.5rem,10vw,4.5rem);font-weight:800;letter-spacing:.15em;line-height:1.1;background:linear-gradient(180deg,#fff 0%,var(--purple) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none;filter:drop-shadow(0 0 30px var(--purple-glow))}.tagline{font-size:clamp(.85rem,3vw,1.1rem);color:var(--text-dim);letter-spacing:.08em;font-style:italic}.menu-hint{font-size:.75rem;color:#fff3;letter-spacing:.05em;margin-top:1rem}.menu-particles{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(1px 1px at 20% 30%,rgba(107,92,231,.3),transparent),radial-gradient(1px 1px at 80% 70%,rgba(34,211,238,.2),transparent),radial-gradient(1px 1px at 50% 50%,rgba(255,255,255,.1),transparent);animation:drift 20s linear infinite}@keyframes drift{0%{transform:translateY(0)}to{transform:translateY(-50px)}}.btn{border:none;cursor:pointer;font-family:inherit;font-weight:600;letter-spacing:.08em;border-radius:.5rem;transition:all .2s ease;touch-action:manipulation}.btn:active{transform:scale(.96)}.btn-primary{padding:.9rem 3rem;font-size:1rem;background:linear-gradient(135deg,var(--purple) 0%,#4f3dc7 100%);color:#fff;box-shadow:0 0 20px var(--purple-glow),0 4px 12px #0006}.btn-primary:hover{box-shadow:0 0 30px var(--purple-glow),0 4px 16px #00000080}.btn-secondary{padding:.7rem 2rem;font-size:.9rem;background:#ffffff0f;color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:#ffffff1a}.btn-back{padding:.6rem 1.5rem;font-size:.8rem;background:transparent;color:var(--text-dim);border:1px solid var(--border)}.btn-back:hover{color:var(--text);border-color:#ffffff1f}.level-select-screen{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;gap:1.5rem}.section-title{font-size:1.3rem;font-weight:700;letter-spacing:.1em;color:var(--text-dim);text-transform:uppercase}.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.75rem;max-width:500px;width:100%}.level-card{display:flex;flex-direction:column;align-items:center;gap:.3rem;padding:1rem .75rem;background:var(--surface);border:1px solid var(--border);border-radius:.6rem;cursor:pointer;transition:all .2s ease;position:relative;color:var(--text);font-family:inherit}.level-card:hover:not(.locked){border-color:#6b5ce74d;background:#6b5ce70d}.level-card.completed{border-color:#22d3ee33}.level-card.locked{opacity:.35;cursor:not-allowed}.level-num{font-size:1.5rem;font-weight:800;color:var(--purple)}.level-name{font-size:.7rem;color:var(--text-dim);letter-spacing:.04em;text-align:center}.level-stars{font-size:.85rem;color:var(--amber);letter-spacing:.1em}.lock-icon{font-size:1.2rem;position:absolute;top:.4rem;right:.5rem}.game-screen{height:100vh;height:100dvh;display:flex;flex-direction:column;background:var(--bg)}.game-hud{display:flex;align-items:center;justify-content:space-between;padding:.5rem 1rem;background:#00000080;border-bottom:1px solid var(--border);flex-shrink:0;min-height:48px}.hud-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#ffffff0f;border:1px solid var(--border);border-radius:.4rem;color:var(--text);font-size:1.1rem;cursor:pointer;transition:background .15s;font-family:inherit}.hud-btn:hover{background:#ffffff1a}.hud-info{display:flex;flex-direction:column;align-items:center;gap:.1rem}.hud-level{font-size:.8rem;font-weight:700;letter-spacing:.06em;color:var(--text)}.hud-moves{font-size:.65rem;color:var(--text-dim);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.game-canvas{flex:1;width:100%;display:block;cursor:pointer}.game-hint{text-align:center;padding:.5rem;font-size:.7rem;color:#ffffff40;letter-spacing:.04em;background:#0000004d;flex-shrink:0}.victory-screen,.gameover-screen{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.victory-content,.gameover-content{text-align:center;display:flex;flex-direction:column;align-items:center;gap:1.2rem;padding:2rem}.victory-title{font-size:1.8rem;font-weight:800;letter-spacing:.06em;background:linear-gradient(135deg,var(--cyan) 0%,var(--purple) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.victory-stars{display:flex;gap:.5rem}.star{font-size:2.5rem;color:#ffffff1a;transition:color .3s}.star.filled{color:var(--amber);text-shadow:0 0 15px rgba(251,191,36,.5)}.victory-moves{font-size:.9rem;color:var(--text-dim);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.victory-buttons,.gameover-buttons{display:flex;flex-direction:column;gap:.6rem;width:100%;max-width:250px}.gameover-title{font-size:1.5rem;font-weight:800;color:#ef4444;letter-spacing:.04em}.gameover-sub{color:var(--text-dim);font-size:.9rem}@keyframes fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.menu-screen,.level-select-screen,.victory-screen,.gameover-screen{animation:fade-in .4s ease-out}