/* assets/css/style.css */
:root {
    --sidebar-width: 240px;
    --primary-color: #667eea;
    --secondary-color: #764ba2;
}

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: 56px 0 0;
    background: white;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    width: var(--sidebar-width);
}

.sidebar .nav-link {
    font-weight: 500;
    color: #333;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
    background-color: #f1f3f5;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar .nav-link.active {
    color: var(--primary-color);
    background-color: #f1f3f5;
    border-left-color: var(--primary-color);
}

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

/* Main Content */
main {
    margin-left: var(--sidebar-width);
    padding-top: 20px;
    min-height: 100vh;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 12px 20px;
}

/* Tables */
.table th {
    font-weight: 600;
    color: #495057;
    border-top: none;
}

.table-hover tbody tr:hover {
    background-color: #f8f9fa;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: 50px;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 0.25rem 0.5rem rgba(102, 126, 234, 0.4);
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        width: 100%;
        padding-top: 0;
    }
    
    main {
        margin-left: 0;
    }
}

/* Print styles */
@media print {
    .sidebar,
    .navbar,
    .btn,
    .btn-toolbar {
        display: none !important;
    }
    
    main {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .card {
        border: 1px solid #dee2e6 !important;
        box-shadow: none !important;
        break-inside: avoid;
    }
    
    .card-header {
        background: #f8f9fa !important;
        color: #212529 !important;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

/* Loading Spinner */
.spinner-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}