:root {
    --primary-color: #0d6efd;
    --bg-light: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-light);
}

.stat-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    border-radius: 12px;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.announcement-box {
    border-left: 5px solid #0d6efd;
    background-color: #e7f1ff;
    border-radius: 8px;
}

/* Responsif Mobile Layout */
@media (max-width: 768px) {
    .table-responsive {
        font-size: 0.875rem;
    }
    .stat-card h3 {
        font-size: 1.5rem;
    }
}