:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    min-height: 100vh;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.card {
    border: none;
    border-radius: 10px;
    margin-bottom: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    border-bottom: 2px solid rgba(0,0,0,.05);
}

.btn {
    border-radius: 6px;
    padding: 8px 16px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

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

.table tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

.badge {
    padding: 6px 12px;
    font-weight: 500;
    border-radius: 20px;
}

.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #dee2e6;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.alert {
    border-radius: 8px;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
}

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

.card, .alert {
    animation: fadeIn 0.3s ease-out;
}

/* Login/Register específicos */
.card.shadow {
    box-shadow: 0 8px 24px rgba(0,0,0,.12) !important;
}

/* Estados de tickets */
.badge.bg-warning {
    color: #000 !important;
}

/* Imagen modal */
#modalImage {
    max-width: 100%;
    height: auto;
}

/* Responsive Design para Móviles y Tablets */

/* Tablets (768px - 1024px) */
@media (max-width: 1024px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .card-body {
        padding: 1.25rem;
    }
}

/* Móviles (hasta 768px) */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }
    
    .container, main.container {
        padding-left: 15px;
        padding-right: 15px;
        margin-top: 1rem !important;
    }
    
    /* Navbar móvil */
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .navbar-nav {
        margin-top: 10px;
    }
    
    .navbar-nav .nav-link {
        padding: 10px 15px;
    }
    
    /* Cards adaptables */
    .card {
        margin-bottom: 15px;
        border-radius: 8px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .card-header h4, .card-header h5 {
        font-size: 1.1rem;
    }
    
    /* Tablas responsive */
    .table-responsive {
        border: none;
        margin-bottom: 1rem;
    }
    
    .table {
        font-size: 0.8rem;
        margin-bottom: 0;
    }
    
    .table thead th {
        font-size: 0.75rem;
        padding: 8px 4px;
        white-space: nowrap;
    }
    
    .table tbody td {
        padding: 8px 4px;
        vertical-align: middle;
    }
    
    /* Ocultar columnas menos importantes en móvil */
    .table .d-none-mobile {
        display: none;
    }
    
    /* Botones adaptables */
    .btn {
        padding: 8px 12px;
        font-size: 0.875rem;
    }
    
    .btn-sm {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
    
    .btn-group-vertical {
        display: flex;
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group-vertical .btn {
        margin-bottom: 5px;
    }
    
    /* Formularios móviles */
    .form-label {
        font-size: 0.9rem;
        margin-bottom: 0.3rem;
    }
    
    .form-control, .form-select {
        font-size: 0.9rem;
        padding: 8px 12px;
    }
    
    /* Estadísticas del dashboard */
    .bg-primary .card-body h2,
    .bg-success .card-body h2,
    .bg-warning .card-body h2,
    .bg-danger .card-body h2,
    .bg-info .card-body h2 {
        font-size: 2rem;
    }
    
    .bg-primary .card-body h5,
    .bg-success .card-body h5,
    .bg-warning .card-body h5,
    .bg-danger .card-body h5 {
        font-size: 0.9rem;
    }
    
    /* Alertas */
    .alert {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    /* Badges */
    .badge {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
    
    /* Imágenes */
    .img-fluid {
        max-width: 100%;
        height: auto;
    }
    
    /* Espaciado general */
    .mb-4 {
        margin-bottom: 1rem !important;
    }
    
    .mt-4 {
        margin-top: 1rem !important;
    }
    
    /* Gap entre elementos flex */
    .d-flex.gap-2 {
        gap: 0.5rem !important;
    }
    
    /* Modales en móvil */
    .modal-dialog {
        margin: 0.5rem;
    }
    
    .modal-content {
        border-radius: 8px;
    }
}

/* Móviles pequeños (hasta 576px) */
@media (max-width: 576px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    /* Cards más compactos */
    .card-body {
        padding: 0.75rem;
    }
    
    /* Títulos más pequeños */
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    h4 {
        font-size: 1.1rem;
    }
    
    /* Botones en columna */
    .d-flex.gap-2 {
        flex-direction: column;
        gap: 0.5rem !important;
    }
    
    .d-flex.gap-2 .btn {
        width: 100%;
    }
    
    /* Estadísticas en una columna */
    .col-md-3 {
        margin-bottom: 0.75rem;
    }
    
    /* Formularios full width */
    .col-md-6, .col-md-8, .col-lg-4, .col-lg-5 {
        width: 100%;
        max-width: 100%;
    }
    
    /* Login/Register más compactos */
    .card.shadow .card-body {
        padding: 2rem 1.5rem;
    }
    
    /* Tablas en scroll horizontal */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 500px;
    }
    
    /* Mejorar touch targets en móviles */
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .form-control, .form-select {
        min-height: 44px;
    }
    
    /* Navbar collapse más espacioso */
    .navbar-collapse {
        padding: 10px 0;
    }
}

/* Mejoras generales de usabilidad móvil */
@media (hover: none) and (pointer: coarse) {
    /* Dispositivos táctiles */
    .btn {
        padding: 10px 16px;
    }
    
    .btn-sm {
        padding: 6px 10px;
    }
    
    /* Mejorar área clickeable de enlaces */
    a {
        padding: 2px;
    }
    
    /* Formularios más fáciles de usar */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="date"],
    select,
    textarea {
        font-size: 16px !important; /* Previene zoom en iOS */
    }
}

/* Orientación horizontal en móviles */
@media (max-height: 500px) and (orientation: landscape) {
    .navbar {
        position: sticky;
        top: 0;
        z-index: 1030;
    }
    
    main.container {
        margin-top: 0.5rem !important;
    }
    
    .card {
        margin-bottom: 10px;
    }
}

/* Mejoras visuales */
.img-fluid {
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
    border-radius: 8px;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.3rem;
}

.dropdown-menu {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
    border: none;
}

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

.dropdown-item:hover {
    background-color: rgba(13, 110, 253, 0.1);
}

/* Dashboard stats cards */
.bg-primary, .bg-success, .bg-warning, .bg-danger, .bg-info {
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
}

.bg-primary .card-body h2,
.bg-success .card-body h2,
.bg-warning .card-body h2,
.bg-danger .card-body h2,
.bg-info .card-body h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
}