:root{--bg-1: #141418;--bg-2: #1f2229;--panel: #22262f;--panel-2: #2a2f3b;--text: #f2f4f8;--muted: #b7beca;--accent: #7dd3fc;--border: #3a404d}body{background:radial-gradient(1200px 600px at 20% -10%,#2a2f3b 0%,transparent 60%),radial-gradient(800px 500px at 90% 10%,#1d2b3d 0%,transparent 55%),linear-gradient(160deg,var(--bg-1),var(--bg-2));color:var(--text)}.app{font-family:Trebuchet MS,Segoe UI,sans-serif;padding:32px 20px 40px;max-width:980px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:16px}.header{text-align:center;width:100%;margin-bottom:8px}.header h1{margin:0 0 6px;font-size:44px;letter-spacing:.5px}.subtitle{margin:0;color:var(--muted);font-size:15px}.panel{width:min(100%,760px);margin:0 auto;background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:14px;box-shadow:0 12px 30px #00000040}.row{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.block{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.sizeControl input{width:90px;padding:8px 10px;border-radius:10px;border:1px solid var(--border);background:#1b1f27;color:var(--text);font-weight:600;text-align:center}.sizeControl input:disabled{opacity:.6}.actions{justify-content:center}.actions button{min-width:210px;text-align:center}.label{font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;font-size:12px}.hint{margin:6px 0 4px;color:var(--muted);text-align:center}.info{padding:8px 12px;border:1px solid var(--border);border-radius:10px;background:#0003;white-space:nowrap}.controlItem{width:140px;display:inline-flex;align-items:center;justify-content:center;text-align:center;box-sizing:border-box}.gridWrap{width:100%;display:flex;justify-content:center}button{font-family:inherit}.panel button{padding:8px 14px;border:1px solid var(--border);border-radius:10px;background:#1b1f27;color:var(--text);cursor:pointer;font-weight:600;transition:transform .08s ease,border-color .12s ease,background .12s ease}.panel button:hover:not(:disabled){transform:translateY(-1px);border-color:var(--accent)}.panel button:active:not(:disabled){transform:translateY(0)}.panel button.active{background:#fff;color:#111;border-color:#fff;box-shadow:0 0 0 2px #fff3}.panel button:disabled{opacity:.6;cursor:not-allowed}.modeToggle button{min-width:120px;justify-content:center}@media(max-width:720px){.header h1{font-size:34px}.panel{padding:12px}.row{justify-content:center}.actions{justify-content:center;width:100%}}:root{font-family:Segoe UI,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh;display:flex;justify-content:center}