:root{--nav:#0f172a;--blue:#2563eb;--green:#16a34a;--orange:#f59e0b;--red:#dc2626;--bg:#f8fafc;--line:#e2e8f0;--text:#1e293b;--muted:#64748b;--white:#fff;--shadow:0 8px 30px rgba(15,23,42,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background:var(--nav);color:#cbd5e1;padding:22px 14px;position:sticky;top:0;height:100vh;overflow:auto}.brand{display:flex;gap:12px;align-items:center;color:white;padding:0 10px 24px}.brand-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#2563eb,#60a5fa);display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:0 8px 24px rgba(37,99,235,.35)}.brand strong{display:block}.brand 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