:root{--bg: #f1f5f9;--surface: #ffffff;--border: #cbd5e1;--text: #0f172a;--muted: #64748b;--faint: #94a3b8;--accent: #0284c7;--accent-hover: #0369a1;--accent-soft: #e0f2fe;--accent-line: #38bdf8;--sidebar-bg: #0b1c2e;--sidebar-section: #64748b;--sidebar-item: #cbd5e1;--sidebar-active-bg: #10314e;--positive: #059669;--negative: #dc2626;--warning: #d97706;--critical: #dc2626;--positive-soft: #d1fae5;--negative-soft: #fee2e2;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.shell{display:flex;min-height:100vh}.sidebar{width:224px;flex-shrink:0;background:var(--sidebar-bg);color:var(--sidebar-item);display:flex;flex-direction:column;padding:18px 0}.sidebar-brand{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:17px;font-weight:700;color:#fff;padding:0 20px 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