:root{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Apple Color Emoji","Segoe UI Emoji";color-scheme:dark;background:#0b0f17;color:#e8eefc}*{box-sizing:border-box}body{margin:0}a{color:inherit}.container{max-width:1100px;margin:0 auto;padding:24px}.card{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.row{display:flex;gap:12px;flex-wrap:wrap}.col{flex:1;min-width:280px}.btn{appearance:none;border:1px solid rgba(255,255,255,.18);background:#ffffff1a;color:#e8eefc;padding:10px 14px;border-radius:12px;cursor:pointer}.btn:disabled{opacity:.5;cursor:not-allowed}.h1{font-size:34px;margin:0 0 10px}.h2{font-size:20px;margin:0 0 10px}.muted{opacity:.75}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.cell{width:100%;aspect-ratio:1 / 1;border-radius:14px;border:1px solid rgba(255,255,255,.16);background:#ffffff12;font-size:42px;display:grid;place-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.badge{display:inline-block;padding:6px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:#ffffff14;font-size:12px}.btnRow{display:inline-flex;align-items:center;gap:8px}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:transparent;border-radius:999px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}