/* Custom Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding-top: 56px;
}

/* Sidebar Styles */
#sidebar {
    min-height: calc(100vh - 56px);
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.nav-link {
    color: var(--primary-color);
    transition: all 0.3s;
}

.nav-link:hover {
    background-color: #f8f9fa;
    color: var(--secondary-color);
}

.nav-link.active {
    background-color: var(--secondary-color);
    color: white !important;
}

/* Card Hover Effects */
.card {
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Button Styles */
.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
}

/* Table Styles */
.table th {
    border-top: none;
    font-weight: 600;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Animation for alerts */
.alert {
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}