/* File: css/style.css */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
}

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

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: var(--primary-color);
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: .5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar .nav-link {
    color: #fff;
    padding: 0.75rem 1rem;
    border-left: 4px solid transparent;
    transition: all 0.3s;
}

.sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--secondary-color);
}

.sidebar .nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--secondary-color);
    font-weight: bold;
}

.sidebar .nav-link i {
    width: 20px;
    margin-right: 10px;
    text-align: center;
}

/* Main content */
main {
    padding-top: 20px;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 20px;
    border-radius: 10px;
}

.card-header {
    background-color: white;
    border-bottom: 1px solid #eee;
    font-weight: 600;
}

/* Stats cards */
.card.bg-primary { background: linear-gradient(45deg, #3498db, #2980b9); }
.card.bg-success { background: linear-gradient(45deg, #27ae60, #219653); }
.card.bg-warning { background: linear-gradient(45deg, #f39c12, #e67e22); }
.card.bg-danger { background: linear-gradient(45deg, #e74c3c, #c0392b); }
.card.bg-info { background: linear-gradient(45deg, #17a2b8, #138496); }

/* Tables */
.table th {
    font-weight: 600;
    border-top: none;
    color: var(--primary-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

/* Badges */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 500;
}

/* Progress bars */
.progress {
    border-radius: 10px;
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: 10px;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        height: auto;
        padding-top: 0;
    }
    
    .sidebar-sticky {
        height: auto;
    }
    
    main {
        padding-top: 0;
    }
}

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

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}