body { background-color: #f5f6fa; }
.card-dashboard { border-radius: 6px; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.section-title { font-size: 15px; border-bottom: 2px solid #333; padding-bottom: 4px; margin-bottom: 16px; }
.table th { font-size: 13px; white-space: nowrap; }
.table td { font-size: 13px; }
.tab-nav-container { background: #f8f9fa; border-bottom: 1px solid #dee2e6; }
.tab-nav { padding-left: 12px; }
.tab-nav .nav-link { color: #495057; font-size: 14px; }
.tab-nav .nav-link.active { font-weight: 600; }
.login-body { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { background: #fff; padding: 40px; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,.15); width: 380px; }
.card-hover { transition: transform .15s, box-shadow .15s; cursor: pointer; }
.card-hover:hover { transform: translateY(-4px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.dropdown-menu { display: none; position: absolute; z-index: 10; }
.dropdown-menu.show { display: block; }