:root{--bg:#f5f6f8;--surface:#fff;--border:#dee2e8;--text:#131b2e;--text-soft:#5b6472;--accent:#2455a4;--accent-hover:#1b4388;--accent-light:#ebf0fa;--danger:#d64545;--danger-hover:#b83030;--success:#28a745;--radius:8px;--radius-lg:12px;--shadow:0 2px 8px #0000000f;--shadow-lg:0 8px 32px #0000001f;--topbar-h:56px;--sidebar-w:260px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif;line-height:1.5}h1,h2,h3,h4{font-family:Space Grotesk,sans-serif;font-weight:600}code,pre,.mono{font-family:JetBrains Mono,monospace}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,select,textarea{font-family:inherit;font-size:.875rem}.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);z-index:100;align-items:center;gap:16px;padding:0 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