:root{--bg:#eef3f9;--ink:#1d2738;--muted:#66748a;--line:#b9c7d9;--surface:#fff;--accent:#2f62b0;--accent-dark:#1f4a8a;--chip:#dae4f1}body{background:var(--bg);color:var(--ink);margin:0;font-family:system-ui,Hiragino Sans,sans-serif}h1{margin:12px 16px 8px;font-size:1.1rem}#stage{background:var(--surface);border-radius:10px;max-width:1100px;height:62vh;min-height:320px;margin:0 16px;position:relative;overflow:hidden}#stage canvas{touch-action:none;display:block}#picker{padding:0 16px 8px}#picker select{border:1px solid var(--line);background:var(--surface);max-width:100%;min-height:44px;color:var(--ink);border-radius:12px;padding:0 12px;font-size:max(16px,1rem)}#labels span{color:#333;pointer-events:none;white-space:nowrap;background:#ffffffb3;border-radius:3px;padding:0 4px;font-size:.8rem;position:absolute;transform:translate(-50%,8px)}@media (width<=599px){#stage{height:52vh}}#action-row{flex-direction:column;align-items:center;gap:8px;max-width:1100px;padding:12px 16px 2px;display:flex}#action{white-space:nowrap;border:1px solid var(--accent-dark);letter-spacing:.08em;cursor:pointer;background:var(--accent);color:#fff;border-radius:12px;min-width:10em;max-width:100%;padding:14px 24px;font-size:1.4rem;font-weight:700}#action[data-action=reset]{background:var(--chip);border-color:var(--line);color:var(--ink)}#action:active{transform:scale(.98)}#scrub{width:21em;max-width:100%;accent-color:var(--accent);margin:0}#controls{grid-template-columns:max-content minmax(7em,22em) max-content;align-items:center;gap:10px 12px;max-width:1100px;padding:16px;display:grid}#controls .name{font-size:.95rem}#controls output{font-variant-numeric:tabular-nums;min-width:6em}#controls input[type=range]{width:100%;accent-color:var(--accent)}#controls .checks{grid-column:2/4;gap:16px;display:flex}#controls .checks label{align-items:center;gap:6px;display:inline-flex}.seg{background:var(--chip);border-radius:10px;flex-wrap:wrap;grid-column:2/4;justify-self:start;gap:2px;padding:2px;display:inline-flex}.seg label{color:#555;cursor:pointer;white-space:nowrap;border-radius:8px;padding:6px 12px;position:relative}.seg label:has(:checked){background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 2px var(--accent);font-weight:600}.seg label:has(:focus-visible){outline:2px solid var(--ink);outline-offset:2px}.seg input{appearance:none;opacity:0;width:0;height:0;margin:0;position:absolute}footer{flex-wrap:wrap;justify-content:space-between;gap:16px;max-width:1100px;padding:8px 16px 16px;display:flex}.credit{color:var(--muted);letter-spacing:.04em;font-size:.75rem;text-decoration:none}.credit:hover{text-decoration:underline}.credit:last-child{margin-left:auto}