/* Archivo CSS: estilo.css */
:root {
    --morado-principal: #5B2E8A;
    --morado-claro: #7B4BA9;
    --verde-principal: #28A745;
    --verde-claro: #34CE57;
    --gris-claro: #f8f9fa;
    --gris-medio: #e9ecef;
    --gris-oscuro: #343a40;
    --blanco: #ffffff;
    --sombra: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

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

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: linear-gradient(135deg, var(--morado-principal), var(--morado-claro));
    color: var(--blanco);
    padding: 20px 0;
    box-shadow: var(--sombra);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    text-align: center;
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.logo h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.menu {
    list-style: none;
}

.menu li {
    margin-bottom: 5px;
}

.menu a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: var(--blanco);
    text-decoration: none;
    transition: all 0.3s ease;
    gap: 15px;
}

.menu a:hover, .menu li.active a {
    background-color: rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--verde-principal);
}

.menu i {
    width: 20px;
    text-align: center;
}

/* Contenido Principal */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

.header {
    background-color: var(--blanco);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--sombra);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: var(--morado-principal);
    font-size: 1.8rem;
}

.user-info {
    color: var(--gris-oscuro);
    font-weight: 500;
}

/* Tarjetas del Dashboard */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background-color: var(--blanco);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--sombra);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--blanco);
}

.card-icon.product {
    background: linear-gradient(135deg, var(--morado-principal), var(--morado-claro));
}

.card-icon.warning {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
}

.card-icon.value {
    background: linear-gradient(135deg, var(--verde-principal), var(--verde-claro));
}

.card-icon.movement {
    background: linear-gradient(135deg, #17a2b8, #20c997);
}

.card-info h3 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: var(--gris-oscuro);
}

.card-info p {
    color: #6c757d;
    font-weight: 500;
}

/* Actividad Reciente */
.recent-activity {
    background-color: var(--blanco);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--sombra);
}

.recent-activity h2 {
    color: var(--morado-principal);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    border-radius: 8px;
    background-color: var(--gris-claro);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--gris-medio);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blanco);
}

.activity-icon.entrada {
    background-color: var(--verde-principal);
}

.activity-icon.salida {
    background-color: #dc3545;
}

.activity-details h4 {
    margin-bottom: 5px;
    color: var(--gris-oscuro);
}

.activity-details p {
    color: #6c757d;
    margin-bottom: 5px;
}

.activity-date {
    font-size: 0.8rem;
    color: #adb5bd;
}

/* Tablas */
.table-container {
    background-color: var(--blanco);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--sombra);
    margin-bottom: 20px;
    overflow-x: auto;
}

.table-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.table-header h2 {
    color: var(--morado-principal);
    margin-bottom: 0;
}

.search-filter {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.search-box, .filter-select {
    padding: 10px 15px;
    border: 1px solid #ced4da;
    border-radius: 5px;
    font-size: 0.9rem;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--morado-principal);
    color: var(--blanco);
}

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

.btn-success {
    background-color: var(--verde-principal);
    color: var(--blanco);
}

.btn-success:hover {
    background-color: var(--verde-claro);
}

.btn-danger {
    background-color: #dc3545;
    color: var(--blanco);
}

.btn-danger:hover {
    background-color: #e4606d;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    background-color: var(--morado-principal);
    color: var(--blanco);
    font-weight: 600;
}

tr:hover {
    background-color: var(--gris-claro);
}

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

.pagination a, .pagination span {
    padding: 8px 15px;
    border: 1px solid #dee2e6;
    text-decoration: none;
    color: var(--morado-principal);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.pagination a:hover, .pagination .current {
    background-color: var(--morado-principal);
    color: var(--blanco);
    border-color: var(--morado-principal);
}

/* Formularios */
.form-container {
    background-color: var(--blanco);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--sombra);
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gris-oscuro);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ced4da;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--morado-principal);
    outline: none;
    box-shadow: 0 0 0 3px rgba(91, 46, 138, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

/* Alertas */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .container {
        flex-direction: column;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .search-filter {
        width: 100%;
    }
    
    .search-box, .filter-select {
        flex: 1;
    }
}


/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background-color: var(--verde-principal);
    color: var(--blanco);
}

.badge-danger {
    background-color: #dc3545;
    color: var(--blanco);
}

.badge-warning {
    background-color: #ffc107;
    color: var(--gris-oscuro);
}

/* Text colors */
.text-danger {
    color: #dc3545;
}

.text-success {
    color: var(--verde-principal);
}

.text-warning {
    color: #ffc107;
}

/* Botones pequeños */
.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--blanco);
    margin: 5% auto;
    padding: 20px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--gris-oscuro);
}

/* Stock bajo en tablas */
.stock-bajo {
    background-color: #fff3cd !important;
}

/* Form actions */
.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Responsive improvements */
@media (max-width: 576px) {
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .search-filter {
        width: 100%;
        flex-direction: column;
    }
    
    .search-box, .filter-select {
        width: 100%;
        margin-bottom: 10px;
    }
}

/* Estilos específicos para editar_producto.php */

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--morado-principal);
}

.form-header h2 {
    color: var(--morado-principal);
    margin: 0;
}

.form-stats {
    background: linear-gradient(135deg, var(--gris-claro), var(--gris-medio));
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid var(--morado-principal);
}

.form-stats h4 {
    color: var(--morado-principal);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: var(--blanco);
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-label {
    font-weight: 500;
    color: var(--gris-oscuro);
}

.stat-value {
    font-weight: 600;
    color: var(--morado-principal);
}

.stat-value.text-success {
    color: var(--verde-principal);
}

.stat-value.text-danger {
    color: #dc3545;
}

/* Mejoras para formularios */
.form-text {
    display: block;
    margin-top: 5px;
    font-size: 0.8rem;
    color: #6c757d;
}

/* Responsive para el formulario de edición */
@media (max-width: 768px) {
    .form-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* Efectos de hover para mejor UX */
.form-control:focus {
    border-color: var(--morado-principal);
    box-shadow: 0 0 0 0.2rem rgba(91, 46, 138, 0.25);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Transiciones suaves */
.form-control, .btn, .stat-item {
    transition: all 0.3s ease;
}