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

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.cadenas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.cadena-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.cadena-card h3 {
    color: #333;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.tienda-item {
    background: #f8f9fa;
    margin: 10px 0;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #007bff;
}

.tienda-item h4 {
    color: #495057;
    margin-bottom: 10px;
}

.observacion {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
    position: relative;
}

.color-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 10px;
    border: 1px solid #ddd;
}

.sfi-badge {
    background: #28a745;
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    margin-left: 10px;
}

.fotos-container {
    margin: 10px 0;
}

.foto-thumbnail {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
    margin: 5px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.foto-thumbnail:hover {
    border-color: #007bff;
}

.actions {
    margin-top: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 20px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #495057;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input[type="color"] {
    height: 50px;
    padding: 5px;
}

.form-group input[type="file"] {
    padding: 5px;
}

.foto-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.foto-preview {
    max-width: 200px;
    max-height: 200px;
    border-radius: 5px;
    border: 2px solid #ddd;
}

.existing-foto {
    text-align: center;
    margin: 10px;
}

.fecha {
    display: block;
    margin-top: 10px;
    color: #666;
    font-style: italic;
    font-size: 12px;
}

.no-observaciones {
    text-align: center;
    color: #6c757d;
    font-style: italic;
    padding: 20px;
}

.alert {
    padding: 15px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid transparent;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

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

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

.close-modal {
    float: right;
    cursor: pointer;
    font-size: 24px;
    color: #aaa;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: #000;
}

small {
    color: #6c757d;
    font-size: 12px;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

@media (max-width: 768px) {
    .cadenas-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 5px 0;
    }
}