/* Estilos generales */
:root {
    --primary: #4e73df;
    --primary-hover: #2e59d9;
    --secondary: #858796;
    --success: #1cc88a;
    --info: #36b9cc;
    --warning: #f6c23e;
    --danger: #e74a3b;
    --light: #f8f9fc;
    --dark: #5a5c69;
    --gray-100: #f8f9fc;
    --gray-200: #eaecf4;
    --gray-300: #dddfeb;
    --gray-400: #d1d3e2;
    --gray-500: #b7b9cc;
    --gray-600: #858796;
    --gray-700: #6e707e;
    --gray-800: #5a5c69;
    --gray-900: #3a3b45;
    
    /* Variables para modo oscuro/claro */
    --bg-main: var(--gray-100);
    --text-main: var(--gray-800);
    --card-bg: #ffffff;
    --card-border: var(--gray-200);
    --input-bg: #ffffff;
    --input-border: var(--gray-300);
}

/* Variables para modo oscuro */
[data-bs-theme="dark"] {
    --primary: #375ad3;
    --primary-hover: #2e59d9;
    --bg-main: #121212;
    --text-main: #e0e0e0;
    --card-bg: #1e1e1e;
    --card-border: #2d2d2d;
    --input-bg: #2d2d2d;
    --input-border: #3d3d3d;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-main);
}

/* Navegación */
.navbar {
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
    padding: 0.5rem 1rem;
}

/* Botón de modo oscuro */
#darkModeToggle {
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

#darkModeToggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Estilos para tarjetas en modo oscuro */
.card {
    background-color: var(--card-bg);
    border-color: var(--card-border);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Estilos para tablas en modo oscuro */
[data-bs-theme="dark"] .table {
    color: var(--text-main);
}

[data-bs-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Estilos para inputs en modo oscuro */
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-main);
}

/* Estilos para modales en modo oscuro */
[data-bs-theme="dark"] .modal-content {
    background-color: var(--card-bg);
    border-color: var(--card-border);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: white !important;
}

.navbar .nav-link {
    font-weight: 600;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.85) !important;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: white !important;
}

/* Tarjetas */
.card {
    border: none;
    border-radius: 0.35rem;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #f8f9fc;
    border-bottom: 1px solid #e3e6f0;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* Botones */
.btn {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.35rem;
    transition: all 0.2s;
}

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

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

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

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

/* Formularios */
.form-control, .form-select {
    border: 1px solid #d1d3e2;
    border-radius: 0.35rem;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.form-control:focus, .form-select:focus {
    border-color: #bac8f3;
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
}

.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

/* Tablas */
.table {
    color: var(--gray-700);
    margin-bottom: 0;
}

.table thead th {
    background-color: #f8f9fc;
    border-bottom: 2px solid #e3e6f0;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--gray-600);
}

.table td, .table th {
    padding: 0.75rem;
    vertical-align: middle;
    border-top: 1px solid #e3e6f0;
}

/* Alertas */
.alert {
    border: none;
    border-left: 0.25rem solid;
    border-radius: 0.35rem;
}

.alert-primary {
    border-left-color: var(--primary);
    background-color: #f0f7ff;
    color: #2c5282;
}

.alert-success {
    border-left-color: var(--success);
    background-color: #f0fff4;
    color: #2f855a;
}

.alert-danger {
    border-left-color: var(--danger);
    background-color: #fff5f5;
    color: #c53030;
}

/* Badges */
.badge {
    font-weight: 600;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    border-radius: 0.25rem;
}

/* Paginación */
.pagination .page-link {
    color: var(--primary);
    border: 1px solid #e3e6f0;
    margin: 0 0.2rem;
    border-radius: 0.35rem !important;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* Dashboard Cards */
.card.border-left-primary {
    border-left: 0.25rem solid var(--primary) !important;
}

.card.border-left-success {
    border-left: 0.25rem solid var(--success) !important;
}

.card.border-left-danger {
    border-left: 0.25rem solid var(--danger) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .card-body {
        padding: 1rem;
    }
    
    .table-responsive {
        border: none;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Utilidades */
.cursor-pointer {
    cursor: pointer;
}

.text-underline-hover {
    text-decoration: none;
}

.text-underline-hover:hover {
    text-decoration: underline;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}