:root{color-scheme:light;--bg: #f3f6fb;--surface: #ffffff;--text: #0f172a;--muted: #64748b;--border: #dbe4f0;--brand: #2563eb}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(circle at 10% 0%,#e8f0ff 0%,var(--bg) 45%);color:var(--text)}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;justify-content:space-between;align-items:center;padding:20px 28px;border-bottom:1px solid var(--border);background:var(--surface)}.topbar-left{display:flex;align-items:center}.topbar-center{flex:1;display:flex;justify-content:center;padding:0 12px}.topbar.is-sticky{position:sticky;top:0;z-index:30}.topbar h1{margin:0;font-size:28px}.topbar p{margin:4px 0 0;color:var(--muted);font-size:12px}.topbar-right{display:flex;align-items:center;gap:10px}main{padding:24px}.app-shell-main{display:block;flex:1}.app-shell-main.has-left{display:grid;grid-template-columns:260px 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label{min-width:100%}.builder-layout-grid{grid-template-columns:repeat(2,minmax(140px,1fr))}.forms-builder-grid{grid-template-columns:1fr}}.plugin-market-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}.plugin-market-card{border:1px solid var(--border);border-radius:12px;background:#f8fbff;padding:12px;display:grid;gap:10px}.plugin-market-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.plugin-market-head h3{margin:0}.plugin-market-tags{display:flex;flex-wrap:wrap;gap:6px}.plugin-chip,.plugin-capability{border:1px solid var(--border);border-radius:999px;background:#fff;padding:3px 8px;font-size:12px}.plugin-capability{border-style:dashed}.plugin-result-box{margin:0;padding:10px;border-radius:10px;border:1px solid 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