/**
 * Estilos Principales - Sistema de Ventas
 * Compatible con Bootstrap 5
 */

/* Variables CSS */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --sidebar-width: 280px;
    --topbar-height: 80px;
    --border-radius: 12px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y configuraciones base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-color);
    line-height: 1.6;
    color: var(--dark-color);
}

/* Enlaces */
a {
    color: #667eea;
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #5a67d8;
    text-decoration: none;
}

/* Botones mejorados */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b5b95 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

/* Cards mejoradas */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.card-header {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-header h5 {
    margin: 0;
    font-size: 1.1rem;
}

/* Tables mejoradas */
.table {
    margin: 0;
}

.table thead th {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: var(--dark-color);
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
    transform: scale(1.01);
}

.table-responsive {
    border-radius: var(--border-radius);
    overflow: hidden;
}

/* Forms mejorados */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-floating > label {
    color: #6c757d;
}

/* Badges personalizados */
.badge {
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
}

/* Alerts mejorados */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    border-left-color: var(--success-color);
    color: #155724;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-left-color: var(--danger-color);
    color: #721c24;
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-left-color: var(--warning-color);
    color: #856404;
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    border-left-color: var(--info-color);
    color: #0c5460;
}

/* Breadcrumb */
.breadcrumb {
    background: none;
    margin: 0;
    padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: #6c757d;
}

/* Dropdown mejorado */
.dropdown-menu {
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    border-radius: 8px;
    margin-top: 0.5rem;
}

.dropdown-item {
    transition: var(--transition);
    padding: 0.75rem 1rem;
}

.dropdown-item:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateX(5px);
}

/* Modal mejorado */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    background: var(--primary-gradient);
    color: white;
    border: none;
}

.modal-footer {
    border: none;
    background: var(--light-color);
}

/* Utilities */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--primary-gradient);
}

.shadow-custom {
    box-shadow: var(--box-shadow);
}

.border-radius-custom {
    border-radius: var(--border-radius);
}

/* Loading states */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* DataTables personalizaciones */
.dataTables_wrapper .dataTables_paginate .paginate_button {
    padding: 0.5rem 1rem;
    margin: 0 2px;
    border-radius: 6px;
    border: none;
    transition: var(--transition);
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--primary-gradient);
    color: white !important;
    border: none;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary-gradient) !important;
    color: white !important;
    border: none;
}

/* Select2 personalizaciones */
.select2-container--bootstrap-5 .select2-selection {
    border-color: #e0e0e0;
    border-radius: 8px;
}

.select2-container--bootstrap-5 .select2-selection--single {
    height: calc(2.25rem + 2px);
}

.select2-container--bootstrap-5.select2-container--focus .select2-selection {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        font-size: 12px;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .btn {
        display: none;
    }
    
    .sidebar, .topbar, .footer {
        display: none;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
}

/* Dashboard específico */
.dashboard-card {
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: rotate(45deg);
    transition: var(--transition);
    opacity: 0;
}

.dashboard-card:hover::before {
    opacity: 1;
    animation: shimmer 2s ease-in-out;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Stats cards */
.stats-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-label {
    color: #6c757d;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* Product grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.product-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 3rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .stats-number {
        font-size: 2rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .table-responsive {
        font-size: 0.85rem;
    }
}

@media (max-width: 576px) {
    .stats-card {
        padding: 1.5rem;
    }
    
    .stats-number {
        font-size: 1.8rem;
    }
    
    .dashboard-card .card-body {
        padding: 1rem;
    }
}

/* Animaciones de entrada */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease forwards;
}

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

.overflow-hidden {
    overflow: hidden;
}

.position-relative {
    position: relative;
}

.z-index-1 {
    z-index: 1;
}

.z-index-2 {
    z-index: 2;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b5b95 100%);
}

/* Fin del archivo */