:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0f1117;color:#e4e4e7}.app{min-height:100vh;padding:2rem 1.5rem;max-width:960px;margin:0 auto}.header{text-align:center;margin-bottom:2rem}.header h1{margin:0;font-size:2rem;font-weight:700;background:linear-gradient(135deg,#f472b6,#818cf8,#34d399);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{color:#ffffff73;font-size:.9rem;margin-top:.25rem}.game-layout{display:flex;gap:1.5rem;align-items:flex-start;justify-content:center;flex-wrap:wrap}.panel{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:.75rem;padding:1.25rem;min-width:200px;display:flex;flex-direction:column;gap:1rem}.panel h3{margin:0;font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:#fff6;font-weight:600}.pattern-list{display:flex;flex-wrap:wrap;gap:.4rem}.pattern-btn{padding:.35rem .7rem;border:1px solid rgba(255,255,255,.1);border-radius:.4rem;background:transparent;color:#fff9;font-size:.8rem;cursor:pointer;transition:all .15s}.pattern-btn:hover{border-color:#ffffff40;color:#fff}.pattern-btn.active{background:#ffffff1a;border-color:#ffffff4d;color:#fff}.palette{display:flex;flex-wrap:wrap;gap:.5rem}.palette-btn{width:44px;height:44px;border-radius:.5rem;border:3px solid transparent;cursor:pointer;position:relative;transition:all .15s;box-shadow:0 2px 6px #0000004d}.palette-btn:hover{transform:scale(1.1)}.palette-btn.selected{border-color:#fff;box-shadow:0 0 0 2px #ffffff4d,0 2px 8px #0006;transform:scale(1.1)}.palette-num{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;color:#000000b3;text-shadow:0 1px 2px rgba(255,255,255,.3)}.controls{display:flex;align-items:center;justify-content:space-between;gap:.75rem}.toggle{display:flex;align-items:center;gap:.4rem;font-size:.8rem;color:#ffffff8c;cursor:pointer}.toggle input{accent-color:#818cf8}.btn{padding:.4rem .9rem;border:1px solid rgba(255,255,255,.15);border-radius:.4rem;background:#ffffff0f;color:#ffffffb3;font-size:.8rem;cursor:pointer;transition:all .15s}.btn:hover{background:#ffffff1a;color:#fff}.progress-bar{height:6px;background:#ffffff14;border-radius:3px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,#818cf8,#34d399);border-radius:3px;transition:width .3s ease}.progress-text{position:absolute;right:0;top:-18px;font-size:.7rem;color:#fff6}.grid-wrapper{position:relative;background:#ffffff05;border:1px solid rgba(255,255,255,.06);border-radius:.75rem;padding:1.25rem}.grid{display:grid}.cell{width:100%;height:100%;border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:2px solid transparent;transition:background-color .2s,border-color .2s,transform .1s;-webkit-user-select:none;user-select:none}.cell:not(.bg-cell):hover{transform:scale(1.08);z-index:1}.cell.bg-cell{cursor:default}.cell.hint{border-color:currentColor!important;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.cell-num{font-size:.75rem;font-weight:700;color:#ffffff8c;pointer-events:none}.cell.filled{cursor:default;animation:pop .2s ease-out}@keyframes pop{0%{transform:scale(.8)}50%{transform:scale(1.1)}to{transform:scale(1)}}.completion-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0f1117d9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:.75rem;z-index:10;animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.completion-card{text-align:center;padding:2rem}.completion-card h2{margin:0 0 .5rem;font-size:1.5rem;background:linear-gradient(135deg,#f472b6,#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.completion-card p{color:#ffffff80;margin-bottom:1.25rem;font-size:.9rem}@media(max-width:640px){.game-layout{flex-direction:column;align-items:center}.panel{width:100%;max-width:400px}.header h1{font-size:1.5rem}}