/* Namespaced CSS to avoid WooCommerce conflicts */
.gt-fr-container {
    max-width: 900px;
    margin: 2rem auto;
    font-family: 'Segoe UI', sans-serif;
    padding: 1rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.gt-fr-controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    justify-content: center;
}

.gt-fr-select-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.gt-fr-select-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: #333;
}

.gt-fr-select {
    padding: 0.6rem 1rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    background: #fff;
    transition: border 0.2s;
    min-width: 150px;
}

.gt-fr-select:focus {
    border-color: #0073aa;
    outline: none;
}

.gt-fr-table-wrapper {
    overflow-x: auto;
    margin-top: 1.5rem;
}

.gt-fr-sizing-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: #fff;
}

.gt-fr-sizing-table th,
.gt-fr-sizing-table td {
    padding: 0.75rem;
    border-bottom: 1px solid #e5e5e5;
    text-align: center;
}

.gt-fr-sizing-table th {
    background: #f5f5f5;
    font-weight: 600;
    color: #333;
}

.gt-fr-sizing-table tr:hover {
    background: #f9f9f9;
}

.gt-fr-error,
.gt-fr-no-data {
    text-align: center;
    color: #666;
    padding: 2rem;
    font-style: italic;
}

/* Responsive design */
@media (max-width: 768px) {
    .gt-fr-container {
        padding: 0.5rem;
    }
    
    .gt-fr-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .gt-fr-select {
        width: 100%;
    }
    
    .gt-fr-sizing-table {
        font-size: 0.9rem;
    }
    
    .gt-fr-sizing-table th,
    .gt-fr-sizing-table td {
        padding: 0.5rem;
    }
}