:root{--bg:#14161c;--panel:#1b1e27;--panel-2:#222633;--line:#2d3240;--text:#eceef4;--muted:#9aa1b2;--accent:#4fd8c8;--accent-ink:#06211e;--focus:#8fb4ff;--radius:12px;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.app{display:grid;grid-template-columns:minmax(0,1fr) 340px;height:100vh;height:100dvh}.stage{position:relative;min-width:0;min-height:0;background:radial-gradient(120% 100% at 50% 20%,#2c3140,#1c1f29 70%)}#canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;text-align:center;background:#14161cd1;backdrop-filter:blur(4px);z-index:2;transition:opacity .3s}.overlay[hidden]{display:none}.overlay.done{opacity:0;pointer-events:none}.overlay p{margin:0;max-width:34ch}.bar{width:min(260px,70%);height:6px;border-radius:99px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;width:8%;border-radius:inherit;background:var(--accent);transition:width .2s}.bar.indeterminate i{width:35%;animation:slide 1.1s ease-in-out infinite}@keyframes slide{0%{transform:translate(-120%)}to{transform:translate(320%)}}.subtitle{position:absolute;left:50%;bottom:18px;transform:translate(-50%);margin:0;max-width:min(92%,640px);padding:9px 14px;border-radius:var(--radius);background:#14161cb8;backdrop-filter:blur(6px);text-align:center;font-size:16px;color:var(--muted);z-index:1;pointer-events:none}.subtitle mark{background:none;color:var(--text);font-weight:700;border-bottom:2px solid var(--accent)}.panel{display:flex;flex-direction:column;gap:18px;padding:20px 18px;background:var(--panel);border-left:1px solid var(--line);overflow-y:auto}.panel header h1{margin:0;font-size:26px;letter-spacing:.01em}.panel header p{margin:2px 0 0;color:var(--muted);font-size:14px}.panel h2{margin:0 0 8px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}.hint{margin:0 0 10px;color:var(--muted);font-size:13px}.seg{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:var(--radius);background:var(--bg)}.seg button{padding:8px 10px;border:0;border-radius:9px;background:none;color:var(--muted);cursor:pointer}.seg button[aria-pressed=true]{background:var(--panel-2);color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}.lines{list-style:none;margin:0;padding:0;display:grid;gap:6px}.line{display:grid;grid-template-columns:1fr auto;gap:2px 10px;width:100%;padding:10px 12px;text-align:left;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2);cursor:pointer;transition:border-color .15s,background .15s}.line:hover{border-color:#44506a}.line .t{font-weight:600}.line .x{grid-column:1;color:var(--muted);font-size:12.5px}.line .s{grid-row:1 / span 2;grid-column:2;align-self:center;font-size:12px;color:var(--accent);white-space:nowrap}.line[aria-pressed=true]{border-color:var(--accent);background:#17302f}.switch{display:flex;gap:12px;align-items:flex-start;width:100%;margin:0 0 8px;padding:10px 12px;text-align:left;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2);cursor:pointer}.switch b{display:block;font-weight:600}.switch small{display:block;color:var(--muted);font-size:12.5px}.knob{flex:none;position:relative;width:34px;height:20px;margin-top:2px;border-radius:99px;background:#3a4052;transition:background .15s}.knob:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .15s}.switch[aria-checked=true] .knob{background:var(--accent)}.switch[aria-checked=true] .knob:after{transform:translate(14px)}.primary{padding:9px 18px;border:0;border-radius:99px;background:var(--accent);color:var(--accent-ink);font-weight:600;cursor:pointer}.panel footer{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.panel footer p{margin:0 0 4px}@media(max-width:820px){.app{grid-template-columns:1fr;grid-template-rows:minmax(300px,56dvh) minmax(0,1fr)}.panel{border-left:0;border-top:1px solid var(--line);padding:16px}.subtitle{font-size:14px;bottom:10px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}