:root{--bg: #07070d;--bg-2: #11111f;--panel: #15152400;--line: #2a2a40;--text: #e7e7f5;--muted: #9090b0;--accent: #6c7bff;--accent-2: #ff5ea8;--frame: #808080;font-family:Segoe UI,Roboto,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body{margin:0;min-height:100vh;background:radial-gradient(circle at 50% 0%,#16162a 0%,var(--bg) 60%);color:var(--text)}.app{max-width:720px;margin:0 auto;padding:24px 16px 48px;display:flex;flex-direction:column;align-items:center}.app__header{text-align:center;margin-bottom:20px}.app__title{margin:0;font-size:2.6rem;letter-spacing:.4em;font-weight:800;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;text-indent:.4em}.app__subtitle{margin:4px 0 0;color:var(--muted);font-size:.85rem}.layout{display:flex;gap:24px;align-items:flex-start}.board-wrap{position:relative;border:3px solid var(--frame);border-radius:6px;box-shadow:0 0 40px #6c7bff40;line-height:0}.board{display:block;border-radius:3px}.panel{display:flex;flex-direction:column;gap:16px;min-width:160px}.stat{display:flex;flex-direction:column;gap:2px}.stat__label{font-size:.72rem;text-transform:uppercase;letter-spacing:.18em;color:var(--muted)}.stat__value{font-size:1.8rem;font-weight:700;font-variant-numeric:tabular-nums}.panel__section{display:flex;flex-direction:column;gap:8px;padding-top:12px;border-top:1px solid var(--line)}.preview{display:block;background:#0a0a14;border:1px solid var(--line);border-radius:4px;padding:6px}.controls ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:.82rem;color:var(--muted)}kbd{display:inline-block;min-width:1.1em;padding:1px 6px;font-family:inherit;font-size:.72rem;text-align:center;color:var(--text);background:var(--bg-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px}.btn{appearance:none;border:none;cursor:pointer;font:inherit;font-weight:600;padding:10px 18px;border-radius:8px;color:#fff;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:transform .08s ease,filter .12s ease}.btn:hover{filter:brightness(1.1)}.btn:active{transform:translateY(1px)}.btn--ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#07070dd1;backdrop-filter:blur(3px);border-radius:3px;z-index:2}.overlay.hidden{display:none}.overlay__panel{text-align:center;padding:24px 18px;line-height:1.5}.overlay__panel h2{margin:0 0 12px;letter-spacing:.25em;font-size:1.6rem}.overlay__panel p{margin:0 0 16px;color:var(--muted);font-size:.9rem}.overlay__hint{font-size:.75rem!important;margin-top:12px!important}@media (max-width: 560px){.layout{flex-direction:column;align-items:center}}