:root{--bg: #0b1322;--panel: #131f33;--panel-2: #1b2a44;--text: #f5f1e8;--muted: rgba(245, 241, 232, .6);--accent: #ffb547;--you: #7cd4ff;--line: rgba(255, 255, 255, .1);--radius: 14px}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif}body{overflow:hidden}canvas{display:block;width:100vw;height:100vh;cursor:none;touch-action:none}a{color:var(--you)}[hidden]{display:none!important}.btn{font:inherit;font-weight:600;color:var(--text);background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:10px 16px;cursor:pointer;transition:background .15s,transform .05s,border-color .15s}.btn:hover{background:#24375a}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--accent);color:#1a1205;border-color:transparent}.btn.primary:hover{background:#ffc46b}.btn.big{padding:14px 22px;font-size:17px}.btn.wide{width:100%}#lobby{height:100%;overflow:auto;display:grid;place-items:center;padding:24px 16px;background:radial-gradient(ellipse at top,#1d3254 0%,var(--bg) 60%)}.lobby-inner{width:100%;max-width:520px;text-align:center}.logo-ball{width:84px;height:84px;animation:bob 2.4s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-10px) rotate(12deg)}}h1{font-size:44px;font-weight:800;letter-spacing:-.02em;margin:8px 0 6px}.tagline{color:var(--muted);margin:0 0 28px;line-height:1.5}.side-pick{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.side-card{font:inherit;color:var(--text);background:var(--panel);border:2px solid var(--line);border-radius:var(--radius);padding:18px 12px;cursor:pointer;display:grid;gap:4px;transition:border-color .15s,background .15s}.side-card:hover{background:var(--panel-2)}.side-card.selected{border-color:var(--you);background:#15304a}.side-icon{font-size:30px;color:var(--you)}.side-card small{color:var(--muted)}.actions{display:grid;gap:12px}.join{display:grid;grid-template-columns:1fr auto;gap:8px}.join input,.row input{font:inherit;font-size:20px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;text-align:center;color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px;min-width:0}.row input{font-size:15px;letter-spacing:normal;text-transform:none;text-align:left;flex:1}.error{color:#ff8a7a;min-height:1.2em}.foot{color:var(--muted);font-size:13px;margin-top:24px;line-height:1.8}#overlay,.modal{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:16px;background:#050a14b8;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);cursor:default;z-index:10}.card-panel{width:100%;max-width:460px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 20px 60px #00000080;text-align:center}.card-panel h2{margin:0 0 8px;font-size:24px}.muted{color:var(--muted);line-height:1.5}.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0 12px}.row{display:flex;gap:8px;justify-content:center;margin-top:12px}.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:18px 0 12px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}.code-big{font-size:64px;font-weight:800;letter-spacing:.15em;color:var(--accent);margin:8px 0}.stack{display:grid;gap:10px;margin-top:18px}.setting{display:grid;gap:6px;text-align:left;margin-top:14px;font-size:14px}.setting input[type=range]{width:100%;accent-color:var(--accent)}.keys{color:var(--muted);font-size:12px;margin-top:16px}kbd{background:var(--panel-2);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-family:inherit}.card-stage{display:grid;place-items:center;min-height:340px;margin:12px 0}.card-outline{position:relative;border:2px dashed var(--accent);border-radius:12px;background:#ffb54714;max-width:100%}.card-handle{position:absolute;right:-12px;bottom:-12px;width:24px;height:24px;border-radius:50%;background:var(--accent);cursor:nwse-resize;touch-action:none}#calib input[type=range]{width:100%;accent-color:var(--accent)}#calib .card-panel{max-width:960px}#tuning{position:fixed;top:10px;right:10px;width:240px;padding:10px 12px;z-index:20;background:#0a121eeb;border-radius:8px;font-size:12px;cursor:default}#tuning label{display:block;margin:6px 0 2px}#tuning input{width:100%}