:root{--primary:#0b86d8;--primary-2:#0a78c7;--bg:#f4f7fb;--surface:#fff;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--danger:#dc2626;--ok:#16a34a;--warn:#d97706;--shadow:0 10px 24px rgba(17,24,39,.08);--radius:14px;--sidebar-w:270px;--font:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial}*{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px}a{text-decoration:none;color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);height:100vh;position:sticky;top:0;overflow:auto;z-index:20}.main{flex:1;min-width:0}.sb-top{padding:12px}.profile-card{background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:14px;padding:12px;color:#fff;display:flex;gap:10px;align-items:center}.avatar{width:36px;height:36px;border-radius:999px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-weight:800}.p-title{font-weight:800}.p-sub{font-size:12px;opacity:.9}.nav{padding:6px 10px 16px}.group-label{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);padding:12px 10px 6px}.nav a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:12px;border:1px solid transparent;margin:3px 0;font-size:13px}.nav a:hover{background:#f2f7ff;border-color:#dbeafe}.nav 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