:root{--text:#334155;--muted:#64748b;--heading:#111827;--bg:#eef2f5;--surface:#fff;--surface-soft:#f8fafc;--border:#d8dee7;--focus:#2563eb;--shadow:0 18px 42px #0f172a24;--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;font:15px/1.45 var(--sans);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #2563eb4d}#root{min-height:100svh}.brand-row,.label-like,.control-group label{align-items:center;display:flex}.brand-row{border-bottom:1px solid var(--border);gap:12px;padding-bottom:12px}.brand-mark{color:#f8fafc;background:#111827;border-radius:8px;place-items:center;width:42px;height:42px;display:grid}h1,h2,h3,p{margin:0}h1{color:var(--heading);letter-spacing:0;font-size:21px;font-weight:720;line-height:1.1}h2{color:var(--heading);letter-spacing:0;font-size:18px;font-weight:700;line-height:1.2}h3{color:var(--heading);letter-spacing:0;font-size:16px;font-weight:700;line-height:1.2}.brand-row p{color:var(--muted);font-size:13px}.control-group{flex-direction:column;gap:8px;display:flex}.control-group label,.label-like{color:var(--heading);gap:7px;font-size:13px;font-weight:700}input,select{border:1px solid var(--border);width:100%;min-height:38px;color:var(--heading);background:#fff;border-radius:7px;padding:8px 10px}.window-grid,.radius-buttons,.layer-grid{gap:8px;display:grid}.window-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.radius-buttons{grid-template-columns:repeat(4,minmax(0,1fr))}.layer-grid{grid-template-columns:1fr}.window-chip,.radius-button{border:1px solid var(--border);min-height:36px;color:var(--heading);background:var(--surface-soft);border-radius:7px;font-weight:700}.radius-button{white-space:nowrap;min-height:34px;padding:0 6px}.layer-toggle{border:1px solid var(--border);background:var(--surface-soft);border-radius:7px;grid-template-columns:18px minmax(0,1fr);align-items:center;min-height:34px;padding:8px 10px;color:var(--text)!important;gap:9px!important;font-weight:650!important;display:grid!important}.layer-toggle input{accent-color:#0f766e;width:18px;min-height:18px}.layer-toggle span{overflow-wrap:anywhere;min-width:0}.window-chip.active{color:#fff;border-color:var(--chip-color);background:var(--chip-color);box-shadow:inset 0 0 0 1px #ffffff29}.radius-button.active{color:#fff;background:#0f766e;border-color:#0f766e}.toggle-row{justify-content:flex-start;gap:9px;color:var(--text)!important;font-weight:600!important}.toggle-row input{accent-color:#0f766e;width:18px;min-height:18px}.api-shell{grid-template-columns:320px minmax(520px,1fr);gap:14px;min-height:100svh;padding:14px;display:grid}.api-shell.detail-open{grid-template-columns:320px minmax(420px,1fr) minmax(360px,480px)}.api-sidebar,.api-detail-panel{border:1px solid var(--border);background:var(--surface);min-width:0;max-height:calc(100svh - 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