/**
 * Frontend Styles
 * @package GenussSchleuder_Angebote
 * @since 1.0.0
 */

/* Calculator Container */
.gs-frontend-calculator {
    max-width: 1000px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.gs-frontend-calculator h2 {
    color: #333;
    margin-bottom: 15px;
    font-size: 28px;
}

.gs-frontend-calculator h3 {
    color: #555;
    margin: 25px 0 15px;
    font-size: 20px;
}

/* Calculator Intro */
.gs-calculator-intro {
    background: #f8f9fa;
    padding: 15px;
    border-left: 4px solid #2271b1;
    margin-bottom: 25px;
}

.gs-calculator-intro p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}

/* Article Selector */
.gs-article-selector {
    display: flex;
    gap: 10px;
    align-items: center;
    margin: 20px 0;
    flex-wrap: wrap;
}

.gs-select {
    flex: 1;
    min-width: 250px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
}

.gs-input {
    width: 120px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
}

.gs-button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

.gs-button:hover {
    transform: translateY(-1px);
}

.gs-button:active {
    transform: translateY(0);
}

.gs-button-primary {
    background-color: #2271b1;
    color: #fff;
}

.gs-button-primary:hover {
    background-color: #135e96;
}

.gs-button-success {
    background-color: #00a32a;
    color: #fff;
    font-weight: 600;
    font-size: 16px;
}

.gs-button-success:hover {
    background-color: #008a20;
}

.gs-button-secondary {
    background-color: #f0f0f1;
    color: #2c3338;
}

.gs-button-secondary:hover {
    background-color: #dcdcde;
}

.gs-button-danger {
    background-color: #d63638;
    color: #fff;
    padding: 5px 10px;
    font-size: 13px;
}

.gs-button-danger:hover {
    background-color: #b32d2e;
}

/* Selected Items Table */
.gs-selected-items {
    margin: 30px 0;
}

.gs-items-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.gs-items-table thead {
    background: #f8f9fa;
}

.gs-items-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #2c3338;
    border-bottom: 2px solid #ddd;
}

.gs-items-table td {
    padding: 12px;
    border-bottom: 1px solid #f0f0f1;
}

.gs-items-table tr:last-child td {
    border-bottom: none;
}

.gs-items-table .text-center {
    text-align: center;
    color: #999;
    font-style: italic;
}

.gs-items-table .text-right {
    text-align: right;
}

.gs-empty-row td {
    padding: 30px !important;
}

/* Totals Box */
.gs-calculator-totals {
    margin: 30px 0;
}

.gs-totals-box {
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    max-width: 500px;
    margin: 0 auto;
}

.gs-total-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 15px;
    color: #333;
}

.gs-total-final {
    border-top: 2px solid #333;
    margin-top: 15px;
    padding-top: 15px !important;
    font-size: 20px;
}

/* Warning and Success Boxes */
.gs-warning-box {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 4px;
    padding: 15px;
    margin: 15px 0;
    color: #856404;
}

.gs-warning-box strong {
    display: block;
    margin-bottom: 5px;
}

.gs-success-box {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
    padding: 15px;
    margin: 15px 0;
    color: #155724;
    font-weight: 600;
}

/* Action Buttons */
.gs-action-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 25px 0;
}

/* Calculator Info */
.gs-calculator-info {
    background: #e8f4f8;
    border-left: 4px solid #2271b1;
    padding: 20px;
    margin: 30px 0;
    border-radius: 4px;
}

.gs-calculator-info h3 {
    margin-top: 0;
    color: #135e96;
}

.gs-calculator-info ul {
    margin: 10px 0;
    padding-left: 20px;
}

.gs-calculator-info li {
    margin: 8px 0;
    color: #333;
}

/* Articles List (Shortcode) */
.gs-articles-list {
    margin: 30px 0;
}

.gs-articles-list h2 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #333;
}

.gs-articles-grid {
    display: grid;
    gap: 20px;
    margin: 20px 0;
}

.gs-columns-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.gs-columns-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.gs-columns-4 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Article Card */
.gs-article-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.gs-article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.gs-article-name {
    font-size: 20px;
    margin: 0 0 10px;
    color: #2271b1;
}

.gs-article-description {
    color: #666;
    font-size: 14px;
    margin: 10px 0;
    min-height: 40px;
}

.gs-article-price {
    margin: 15px 0 5px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
}

.gs-price-label {
    font-size: 13px;
    color: #999;
}

.gs-price-value {
    font-size: 24px;
    font-weight: 700;
    color: #00a32a;
    margin: 0 5px;
}

.gs-price-unit {
    font-size: 14px;
    color: #666;
}

.gs-article-vat {
    color: #999;
    font-size: 12px;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .gs-frontend-calculator {
        padding: 15px;
    }
    
    .gs-article-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .gs-select,
    .gs-input,
    .gs-button {
        width: 100%;
    }
    
    .gs-items-table {
        font-size: 14px;
    }
    
    .gs-items-table th,
    .gs-items-table td {
        padding: 8px;
    }
    
    .gs-totals-box {
        max-width: 100%;
    }
    
    .gs-action-buttons {
        flex-direction: column;
    }
    
    .gs-action-buttons .gs-button {
        width: 100%;
    }
    
    .gs-articles-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading State */
.gs-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.gs-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: gs-spin 0.8s linear infinite;
}

@keyframes gs-spin {
    to { transform: rotate(360deg); }
}

/* Print Styles */
@media print {
    .gs-article-selector,
    .gs-action-buttons {
        display: none;
    }
}