:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
    --border-color: #dee2e6;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    min-height: 100vh;
}

.main-container {
    padding: 30px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Cards y contenedores */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px 12px 0 0 !important;
    padding: 15px 20px;
    font-weight: 600;
}

/* Tablas */
.table-container {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.table {
    margin-bottom: 0;
}

.table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.table thead th {
    border: none;
    padding: 15px;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table thead th:first-child {
    border-radius: 8px 0 0 0;
}

.table thead th:last-child {
    border-radius: 0 8px 0 0;
}

.table tbody tr {
    transition: background-color 0.2s;
}

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

.table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

/* Botones */
.btn {
    border-radius: 8px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #5dade2);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-color), #ec7063);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #48c9b0);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #f5b041);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d, #858e96);
}

/* Formularios */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Alertas */
.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-danger, .alert-error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
}

.alert strong {
    font-weight: 600;
}

/* Filtros */
.filter-section {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.filter-section label {
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--dark-text);
    font-size: 0.9rem;
}

/* Paginación */
.pagination {
    margin-top: 20px;
    gap: 5px;
    display: flex;
    flex-wrap: wrap;
}

.page-item {
    margin: 0;
}

.page-link {
    border-radius: 8px;
    margin: 0 3px;
    border: 1px solid var(--border-color);
    color: var(--secondary-color);
    padding: 8px 14px;
    font-weight: 500;
    transition: all 0.3s;
    background: white;
}

.page-link:hover {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--secondary-color), #5dade2);
    border-color: var(--secondary-color);
    color: white;
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
    font-weight: 600;
}

.page-item.disabled .page-link {
    background-color: #f8f9fa;
    color: #6c757d;
    border-color: var(--border-color);
    cursor: not-allowed;
    opacity: 0.6;
}

.page-item.disabled .page-link:hover {
    transform: none;
    box-shadow: none;
    background-color: #f8f9fa;
    color: #6c757d;
}

/* Estilos específicos para botones de navegación */
.page-item:first-child .page-link,
.page-item:last-child .page-link {
    font-weight: 600;
    padding: 8px 16px;
}

.page-item:first-child .page-link::before {
    content: "← ";
}

.page-item:last-child .page-link::after {
    content: " →";
}

/* Navbar */
.navbar-nav .nav-link {
    padding: 10px 15px;
    margin: 0 5px;
    border-radius: 8px;
    transition: all 0.3s;
    font-weight: 500;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.navbar-nav .nav-link i {
    margin-right: 5px;
}

.dropdown-menu {
    border-radius: 10px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    margin-top: 8px;
}

.dropdown-item {
    padding: 10px 20px;
    transition: all 0.2s;
}

.dropdown-item:hover {
    background-color: #3498db;
    color: white;
    transform: translateX(5px);
}

.dropdown-item i {
    margin-right: 10px;
    width: 20px;
}

/* Utilidades */
.page-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.text-right {
    text-align: right;
}

/* Estilos para badges */
.badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-container {
        padding: 15px 10px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .table-container {
        padding: 10px;
    }

    .pagination {
        justify-content: center;
    }
}

/* Paginación */
nav .pagination {
    margin-top: 20px;
    gap: 5px;
    display: flex !important;
    flex-wrap: wrap;
    justify-content: flex-end;
}

nav .pagination .page-item {
    margin: 0 !important;
    list-style: none;
}

nav .pagination .page-link {
    border-radius: 8px !important;
    margin: 0 3px;
    border: 1px solid var(--border-color) !important;
    color: var(--secondary-color) !important;
    padding: 8px 14px !important;
    font-weight: 500;
    transition: all 0.3s;
    background: white !important;
    text-decoration: none;
}

nav .pagination .page-link:hover {
    background-color: var(--secondary-color) !important;
    color: white !important;
    border-color: var(--secondary-color) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

nav .pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--secondary-color), #5dade2) !important;
    border-color: var(--secondary-color) !important;
    color: white !important;
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
    font-weight: 600;
}

nav .pagination .page-item.disabled .page-link {
    background-color: #f8f9fa !important;
    color: #6c757d !important;
    border-color: var(--border-color) !important;
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

nav .pagination .page-item.disabled .page-link:hover {
    transform: none !important;
    box-shadow: none !important;
    background-color: #f8f9fa !important;
    color: #6c757d !important;
}

/* Estilos específicos para botones de navegación (Anterior/Siguiente) */
nav .pagination .page-item:first-child .page-link,
nav .pagination .page-item:last-child .page-link {
    font-weight: 600;
    padding: 8px 16px !important;
}

/* Agregar flechas decorativas */
nav .pagination .page-item .page-link[rel="prev"]::before {
    content: "← ";
    margin-right: 4px;
}

nav .pagination .page-item .page-link[rel="next"]::after {
    content: " →";
    margin-left: 4px;
}