body{background:#f5f7fb;font-family:Arial,sans-serif}.sidebar{min-height:100vh;background:#111827}.sidebar a{color:#d1d5db;text-decoration:none;display:block;padding:10px 16px;border-radius:8px;margin:3px 0}.sidebar a:hover,.sidebar a.active{background:#2563eb;color:#fff}.brand{font-size:22px;font-weight:700;color:#fff}.content{padding:24px}.stat-card{border:0;border-radius:14px;box-shadow:0 2px 12px rgba(0,0,0,.06)}.table-card{border:0;border-radius:14px;box-shadow:0 2px 12px rgba(0,0,0,.06)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#eef2ff}.login-card{width:100%;max-width:430px;border:0;border-radius:18px;box-shadow:0 10px 40px rgba(0,0,0,.1)}.small-muted{font-size:13px;color:#6b7280}@media(max-width:768px){.sidebar{min-height:auto}.content{padding:16px}}