:root{--bg: #f5f6fa;--bg-elev: #ffffff;--text: #2c3a4b;--text-soft: #6b7a8f;--text-muted: #94a3b8;--border: #e3e7ed;--border-strong: #cfd6e0;--accent: #1976d2;--accent-hover: #1565c0;--accent-soft: #e3f2fd;--success: #2e7d32;--success-soft: #e8f5e9;--warning: #ed6c02;--warning-soft: #fff4e5;--danger: #c62828;--danger-soft: #fdecea;--sidebar-bg: #1f2937;--sidebar-text: #cbd5e1;--sidebar-text-active: #ffffff;--sidebar-active-bg: #1976d2;--shadow: 0 1px 3px rgba(15, 23, 42, .06);--radius: 6px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:Inter,Roboto,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0 0 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800px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;height:auto}.main{padding:16px}}