body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.dashboard-sidebar {
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.sidebar-link {
    color: #495057;
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    display: block;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.sidebar-link:hover {
    background-color: #e9ecef;
    color: #667eea;
    text-decoration: none;
}

.sidebar-link.active {
    background-color: #667eea;
    color: white;
}

.dashboard-card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.main-content {
    padding: 20px 0;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: white !important;
}

.dropdown-menu {
    border-radius: 10px;
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}