/**
 * 前端樣式 - 優化版
 * 
 * @package MRSC
 * @version 1.0.5
 */

/* CSS 變數定義 */
:root {
    --mrsc-primary: #7f54b3;
    --mrsc-primary-dark: #6a4598;
    --mrsc-primary-light: #9b7bc5;
    --mrsc-success: #28a745;
    --mrsc-danger: #dc3545;
    --mrsc-warning: #ffc107;
    --mrsc-info: #17a2b8;
    --mrsc-border-radius: 12px;
    --mrsc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 優惠券卡片容器 */
.mrsc-coupons-container {
    margin: 30px 0;
    animation: fadeInUp 0.5s ease;
}

/* 優惠券網格布局 */
.mrsc-coupons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

/* 優惠券卡片 */
.mrsc-coupon-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    border: 2px solid #e8e8e8;
    border-radius: var(--mrsc-border-radius);
    padding: 24px;
    position: relative;
    transition: var(--mrsc-transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mrsc-coupon-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--mrsc-primary), var(--mrsc-primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.mrsc-coupon-card:hover::before {
    transform: scaleX(1);
}

/* 註冊優惠券特殊樣式 */
.mrsc-coupon-card.is-register-coupon {
    border-color: var(--mrsc-primary);
    background: linear-gradient(135deg, #ffffff 0%, #f8f5fc 100%);
    box-shadow: 0 4px 15px rgba(127, 84, 179, 0.1);
}

.mrsc-coupon-card:hover {
    border-color: var(--mrsc-primary);
    box-shadow: 0 8px 25px rgba(127, 84, 179, 0.2);
    transform: translateY(-2px);
}

/* 已使用的優惠券 */
.mrsc-coupon-card.is-used {
    opacity: 0.6;
    background: #f7f7f7;
}

/* 已過期的優惠券 */
.mrsc-coupon-card.is-expired {
    border-color: #dc3545;
    background: #fff5f5;
}

/* 優惠券頭部 */
.mrsc-coupon-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #e0e0e0;
    flex-wrap: wrap;
    gap: 10px;
}

/* 註冊優惠券徽章 */
.mrsc-coupon-badge {
    background: linear-gradient(135deg, #7f54b3, #9b7bc5);
    color: #fff;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 優惠券代碼 */
.mrsc-coupon-code {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    background: #f8f9fa;
    padding: 8px 15px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

/* 優惠券金額 */
.mrsc-coupon-amount {
    font-size: 24px;
    font-weight: bold;
    color: #28a745;
}

/* 優惠券詳情 */
.mrsc-coupon-details {
    margin-bottom: 15px;
}

.mrsc-coupon-details p {
    margin: 8px 0;
    color: #666;
    font-size: 14px;
}

.mrsc-coupon-details strong {
    color: #333;
    margin-right: 5px;
}

/* 優惠券操作區 */
.mrsc-coupon-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed #e0e0e0;
}

/* 儲存按鈕 */
.mrsc-save-coupon {
    background: #7f54b3;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.mrsc-save-coupon:hover:not(:disabled) {
    background: #6a4598;
}

.mrsc-save-coupon:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mrsc-save-coupon.loading,
.mrsc-remove-saved.loading {
    position: relative;
    padding-left: 40px;
}

.mrsc-save-coupon.loading::before,
.mrsc-remove-saved.loading::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* 移除儲存按鈕 */
.mrsc-remove-saved {
    background: #dc3545;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.mrsc-remove-saved:hover {
    background: #c82333;
}

/* 狀態標籤 */
.mrsc-coupon-status {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.mrsc-coupon-status.status-unused {
    background: #e3f2fd;
    color: #2196f3;
}

.mrsc-coupon-status.status-saved {
    background: #fff3e0;
    color: #ff9800;
}

.mrsc-coupon-status.status-used {
    background: #f1f8e9;
    color: #689f38;
}

.mrsc-coupon-status.status-expired {
    background: #ffebee;
    color: #f44336;
}

/* 空狀態 */
.mrsc-no-coupons {
    text-align: center;
    padding: 40px 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.mrsc-no-coupons-icon {
    font-size: 48px;
    color: #ccc;
    margin-bottom: 15px;
}

.mrsc-no-coupons-text {
    color: #666;
    font-size: 16px;
}

/* 通知訊息 */
.mrsc-notice {
    padding: 12px 20px;
    margin: 15px 0;
    border-radius: 4px;
    position: relative;
    animation: slideDown 0.3s ease;
}

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

.mrsc-notice.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.mrsc-notice.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* 動畫效果 */
@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* 載入中效果 */
.mrsc-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.mrsc-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--mrsc-primary-light);
    border-top-color: var(--mrsc-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .mrsc-coupons-grid {
        grid-template-columns: 1fr;
    }
    
    .mrsc-coupon-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .mrsc-coupon-amount {
        margin-top: 10px;
    }
    
    .mrsc-coupon-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .mrsc-save-coupon,
    .mrsc-remove-saved {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .mrsc-coupon-status {
        align-self: center;
        margin-top: 10px;
    }
}

@media (max-width: 480px) {
    .mrsc-coupons-grid {
        gap: 15px;
    }
    
    .mrsc-coupon-card {
        padding: 15px;
    }
    
    .mrsc-coupon-code {
        font-size: 16px;
    }
    
    .mrsc-coupon-amount {
        font-size: 20px;
    }
}