:root{--bg: #f4f2ee;--panel: #ffffff;--ink: #1f2328;--muted: #6b7280;--line: #e2ded6;--accent: #3d7ea6;--accent-ink: #ffffff;--chip: #f1eee8;--err: #b42318;--stage: radial-gradient(circle at 50% 35%, #ffffff 0%, #e9e6df 75%);color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: #15171a;--panel: #1d2024;--ink: #e8e6e3;--muted: #9aa1aa;--line: #2f343a;--accent: #5b9cc4;--chip: #262a2f;--err: #f97066;--stage: radial-gradient(circle at 50% 35%, #2a2e34 0%, #15171a 75%);color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:14px/1.45 system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}button,input{font:inherit;color:inherit}.app{display:grid;grid-template-columns:320px 1fr;height:100%}.panel{background:var(--panel);border-right:1px solid var(--line);padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:18px}h1{margin:0;font-size:20px;letter-spacing:-.01em}.sub{margin:2px 0 0;color:var(--muted)}.field{display:flex;flex-direction:column;gap:6px}.label{font-weight:600;font-size:13px}.hint{color:var(--muted);font-size:12px}.pair{display:flex;align-items:center;gap:8px}.pair input{width:0;flex:1}.pair .unit{color:var(--muted);width:22px}input{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:8px 10px}input:focus{outline:2px solid var(--accent);outline-offset:-1px}.seg{display:flex;background:var(--chip);border-radius:9px;padding:3px;gap:3px}.seg button{flex:1;border:0;background:transparent;border-radius:7px;padding:6px 10px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}.seg button.on{background:var(--panel);box-shadow:0 1px 2px #00000026;font-weight:600}.chips{display:flex;flex-wrap:wrap;gap:6px}.chips button{border:1px solid var(--line);background:transparent;border-radius:999px;padding:3px 10px;cursor:pointer;font-size:13px}.chips button.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.errors{color:var(--err);margin:0;padding-left:18px}p.errors{padding:0}.stats{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:0;padding:12px;background:var(--chip);border-radius:10px}.stats dt{color:var(--muted)}.stats dd{margin:0;font-variant-numeric:tabular-nums;text-align:right}.export{margin-top:auto;display:flex;flex-direction:column;gap:8px}.export button{border-radius:9px;padding:8px 12px;cursor:pointer;border:1px solid var(--line);background:transparent}.export button.primary{background:var(--accent);color:var(--accent-ink);border:0;padding:11px 12px;font-weight:600}.export button:disabled{opacity:.45;cursor:not-allowed}.each{display:flex;gap:6px;align-items:center}.each button{flex:1;font-size:12px;padding:6px;white-space:nowrap}.each .hint{white-space:nowrap}.stage{position:relative;background:var(--stage);min-height:0}.viewer{position:absolute;top:0;right:0;bottom:0;left:0}.viewer canvas{display:block}.toolbar{position:absolute;top:14px;left:14px;display:flex;gap:12px;align-items:center}.toolbar .seg{background:var(--panel);box-shadow:0 1px 3px #00000026}.toolbar .seg button.on{background:var(--chip);box-shadow:none}.check{display:flex;gap:6px;align-items:center;background:var(--panel);padding:6px 10px;border-radius:9px;box-shadow:0 1px 3px #00000026;cursor:pointer}.legend{position:absolute;bottom:14px;left:14px;display:flex;gap:14px;color:var(--muted);font-size:12px}.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}.loading{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:var(--muted)}@media (max-width: 760px){.app{grid-template-columns:1fr;grid-template-rows:auto minmax(360px,1fr);height:auto;min-height:100%}.panel{border-right:0;border-bottom:1px solid var(--line);padding:16px}.stage{height:60vh}}