:root{--bg:#0b0c10;--fg:#e6edf3;--muted:#a2a9b1;--accent:#00d1ff;--panel:#121417cc;--panel-border:#24272b;--btn:#1c2229;--btn-hover:#242c35}*{box-sizing:border-box}html,body{height:100%}body{background:var(--bg);color:var(--fg);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;overflow:hidden}.app{grid-template-columns:clamp(260px,28vw,420px) 1fr;width:100vw;min-width:0;height:100vh;min-height:100vh;display:grid;position:fixed;inset:0}@media (max-width:900px){.app{grid-template-columns:1fr}aside{z-index:10;border-right:none;border-top:1px solid var(--panel-border);border-radius:16px 16px 0 0;max-height:70vh;position:fixed;inset:auto 0 0}.panel.collapsed{height:46px;overflow:hidden}}main{width:100vw;min-width:0;height:100vh;min-height:100vh;overflow:hidden}canvas{touch-action:none;width:100%;height:100%;display:block}aside{background:var(--panel);border-right:1px solid var(--panel-border);-webkit-backdrop-filter:blur(8px);overflow:auto}.panel{padding:14px 14px calc(80px + env(safe-area-inset-bottom))}.topbar{z-index:2;background:linear-gradient(#121417f2,#121417cc 70%,#12141700);border-bottom:1px solid #1d2126;align-items:center;gap:10px;margin:-14px -14px 8px;padding:12px 14px 6px;display:flex;position:sticky;top:0}.title{letter-spacing:.6px;font-size:14px;font-weight:700}.chip{color:#cbd3dc;background:#161a1f;border:1px solid #2b2e34;border-radius:999px;padding:4px 8px;font-size:11px}.chip.warn{color:#ffd67d;background:#1b1400;border-color:#3a2f05}.btn{background:var(--btn);height:30px;color:var(--fg);border:1px solid #2b2e34;border-radius:8px;padding:0 6px}.btn:hover{background:var(--btn-hover)}.sec{color:var(--fg);letter-spacing:.4px;border-top:1px dashed #262a2f;margin:16px 0 8px;padding-top:8px;font-weight:600}.group{grid-template-columns:1fr 112px;align-items:center;gap:10px;margin:8px 0;display:grid;position:relative}.group.wide{grid-template-columns:1fr}.group label{color:var(--muted);-webkit-user-select:none;user-select:none;align-items:center;gap:8px;font-size:12px;display:flex}.group input[type=range]{width:100%}.group input[type=checkbox]{transform:translateY(1px)}.group input[type=color]{background:0 0;border:none;width:100%;height:32px}.group select,.group input[type=text],.group input[type=number]{background:var(--btn);width:100%;height:32px;color:var(--fg);border:1px solid #2b2e34;border-radius:8px;padding:0 10px;font-size:12px}.value{display:none}.subtle{color:var(--muted);font-size:11px}.hidden{display:none!important}.hint{color:var(--muted);font-size:11px}.footer{background:linear-gradient(#12141700 40%,#121417f2);border-top:1px solid #1d2126;margin-top:8px;padding:10px 0 0;position:sticky;bottom:0}.btn-row{gap:8px;padding:8px 14px;display:flex}.note{color:var(--muted);margin:6px 14px 12px;font-size:11px}.mono{font-family:ui-monospace,Menlo,Consolas,monospace}.slider-tooltip{background:var(--accent);color:var(--bg);pointer-events:none;opacity:0;z-index:10;border-radius:4px;padding:2px 6px;font-size:11px;transition:opacity .1s;position:absolute}