/**
 * Estilos principales para el Sistema POS
 */

:root {
    --primary-color: #3498db;
    --secondary-color: #8e44ad;
    --accent-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --text-color: #2c3e50;
    --light-bg: #f8f9fa;
    --border-color: #e9ecef;
}

/* Estilos generales */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
}

a {
    text-decoration: none;
}

/* Contenedores */
.content-container {
    padding: 20px;
    margin-bottom: 40px;
}

/* Tarjetas */
.card {
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.card-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    font-weight: bold;
    border-top-left-radius: 10px !important;
    border-top-right-radius: 10px !important;
}

/* Botones */
.btn {
    border-radius: 6px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

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

.btn-success:hover {
    background-color: #27ae60;
    border-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(46, 204, 113, 0.3);
}

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

.btn-danger:hover {
    background-color: #c0392b;
    border-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

/* Formularios */
.form-control {
    border-radius: 6px;
    padding: 0.6rem 0.75rem;
    border-color: #ced4da;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

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

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #495057;
}

/* Tablas */
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--text-color);
    vertical-align: middle;
    border-color: var(--border-color);
}

.table thead th {
    background-color: var(--light-bg);
    color: #495057;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Alertas */
.alert {
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    border: none;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 0.375rem;
}

/* Animaciones y transiciones */
.fade-in {
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Utilidades */
.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1) !important;
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.15) !important;
}

/* Media queries para responsividad */
@media (max-width: 768px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .card {
        margin-bottom: 15px;
    }
    
    .table-responsive {
        margin-bottom: 15px;
    }
}