/* 
 * WordPress优惠码管理器 - 前端样式
 * 2025年现代设计风格
 */

/* CSS变量定义 */
:root {
    /* 主题色彩 */
    --coupon-primary: #6366f1;
    --coupon-primary-light: #a5b4fc;
    --coupon-primary-dark: #4f46e5;
    --coupon-secondary: #10b981;
    --coupon-secondary-light: #6ee7b7;
    --coupon-warning: #f59e0b;
    --coupon-danger: #ef4444;
    --coupon-danger-light: #fca5a5;
    
    /* 中性色 */
    --coupon-white: #ffffff;
    --coupon-gray-50: #f9fafb;
    --coupon-gray-100: #f3f4f6;
    --coupon-gray-200: #e5e7eb;
    --coupon-gray-300: #d1d5db;
    --coupon-gray-400: #9ca3af;
    --coupon-gray-500: #6b7280;
    --coupon-gray-600: #4b5563;
    --coupon-gray-700: #374151;
    --coupon-gray-800: #1f2937;
    --coupon-gray-900: #111827;
    
    /* 渐变色 */
    --coupon-gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --coupon-gradient-success: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    --coupon-gradient-warning: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    --coupon-gradient-danger: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    
    /* 阴影 */
    --coupon-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --coupon-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --coupon-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --coupon-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --coupon-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 圆角 */
    --coupon-radius-sm: 0.25rem;
    --coupon-radius: 0.5rem;
    --coupon-radius-md: 0.75rem;
    --coupon-radius-lg: 1rem;
    --coupon-radius-xl: 1.5rem;
    --coupon-radius-full: 9999px;
    
    /* 间距 */
    --coupon-space-1: 0.25rem;
    --coupon-space-2: 0.5rem;
    --coupon-space-3: 0.75rem;
    --coupon-space-4: 1rem;
    --coupon-space-5: 1.25rem;
    --coupon-space-6: 1.5rem;
    --coupon-space-8: 2rem;
    --coupon-space-10: 2.5rem;
    --coupon-space-12: 3rem;
    
    /* 字体 */
    --coupon-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --coupon-font-size-xs: 0.75rem;
    --coupon-font-size-sm: 0.875rem;
    --coupon-font-size-base: 1rem;
    --coupon-font-size-lg: 1.125rem;
    --coupon-font-size-xl: 1.25rem;
    --coupon-font-size-2xl: 1.5rem;
    --coupon-font-size-3xl: 1.875rem;
    
    /* 动画 */
    --coupon-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --coupon-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础重置 */
.coupon-card,
.coupon-card *,
.coupon-list,
.coupon-list * {
    box-sizing: border-box;
}

/* 优惠码卡片主体 */
.coupon-card {
    position: relative;
    background: var(--coupon-white);
    border-radius: var(--coupon-radius-xl);
    box-shadow: var(--coupon-shadow-lg);
    overflow: hidden;
    margin: var(--coupon-space-4) 0;
    font-family: var(--coupon-font-family);
    transition: var(--coupon-transition);
    border: 1px solid var(--coupon-gray-200);
    max-width: 400px;
}

.coupon-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--coupon-shadow-xl);
}

.coupon-card.coupon-expired {
    opacity: 0.7;
    filter: grayscale(0.3);
}

.coupon-card.coupon-expired:hover {
    transform: none;
}

/* 优惠码头部 */
.coupon-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--coupon-space-6) var(--coupon-space-6) var(--coupon-space-4);
    background: var(--coupon-gradient-primary);
    color: var(--coupon-white);
    position: relative;
}

.coupon-header::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    height: 20px;
    background: var(--coupon-white);
    border-radius: 20px 20px 0 0;
}

.coupon-title {
    font-size: var(--coupon-font-size-xl);
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.coupon-badges {
    display: flex;
    gap: var(--coupon-space-2);
    flex-shrink: 0;
    margin-left: var(--coupon-space-3);
}

.coupon-badge {
    font-size: var(--coupon-font-size-xs);
    font-weight: 600;
    padding: var(--coupon-space-1) var(--coupon-space-3);
    border-radius: var(--coupon-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.coupon-badge.active {
    background: rgba(255, 255, 255, 0.2);
    color: var(--coupon-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.coupon-badge.expired {
    background: var(--coupon-danger);
    color: var(--coupon-white);
}

/* 优惠码描述 */
.coupon-description {
    padding: var(--coupon-space-4) var(--coupon-space-6);
    color: var(--coupon-gray-700);
    line-height: 1.6;
    border-bottom: 1px solid var(--coupon-gray-100);
}

.coupon-description p {
    margin: 0 0 var(--coupon-space-3) 0;
}

.coupon-description p:last-child {
    margin-bottom: 0;
}

.coupon-description strong {
    color: var(--coupon-gray-900);
    font-weight: 600;
}

.coupon-description a {
    color: var(--coupon-primary);
    text-decoration: none;
    font-weight: 500;
}

.coupon-description a:hover {
    text-decoration: underline;
}

.coupon-description img {
    max-width: 100%;
    height: auto;
    border-radius: var(--coupon-radius);
    margin: var(--coupon-space-3) 0;
}

/* 优惠码主体部分 */
.coupon-code-section {
    padding: var(--coupon-space-6);
}

.coupon-code-display {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-4);
    margin-bottom: var(--coupon-space-4);
}

.code-container {
    position: relative;
    flex: 1;
    background: var(--coupon-gray-50);
    border: 2px dashed var(--coupon-primary-light);
    border-radius: var(--coupon-radius-md);
    padding: var(--coupon-space-4);
    text-align: center;
    overflow: hidden;
}

.code-container .code-border {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--coupon-radius-md);
    background: linear-gradient(45deg, transparent 45%, var(--coupon-primary-light) 50%, transparent 55%);
    background-size: 8px 8px;
    opacity: 0.1;
    animation: border-animate 3s linear infinite;
}

@keyframes border-animate {
    0% { background-position: 0 0; }
    100% { background-position: 16px 16px; }
}

.code-text {
    font-family: 'Courier New', monospace;
    font-size: var(--coupon-font-size-lg);
    font-weight: 700;
    color: var(--coupon-primary);
    letter-spacing: 0.1em;
    position: relative;
    z-index: 1;
}

.coupon-copy-btn {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-2);
    background: var(--coupon-primary);
    color: var(--coupon-white);
    border: none;
    border-radius: var(--coupon-radius-md);
    padding: var(--coupon-space-3) var(--coupon-space-4);
    font-size: var(--coupon-font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--coupon-transition);
    flex-shrink: 0;
}

.coupon-copy-btn:hover {
    background: var(--coupon-primary-dark);
    transform: scale(1.05);
}

.coupon-copy-btn:active {
    transform: scale(0.95);
}

.coupon-copy-btn.copied {
    background: var(--coupon-secondary);
    animation: copy-success 0.6s ease-out;
}

@keyframes copy-success {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* 过期时间信息 */
.coupon-expire-info {
    text-align: center;
    margin-bottom: var(--coupon-space-4);
}

.expire-date {
    display: inline-flex;
    align-items: center;
    gap: var(--coupon-space-2);
    font-size: var(--coupon-font-size-sm);
    font-weight: 500;
    padding: var(--coupon-space-2) var(--coupon-space-4);
    border-radius: var(--coupon-radius-full);
}

.expire-date.valid {
    background: var(--coupon-gray-100);
    color: var(--coupon-gray-700);
}

.expire-date.expired {
    background: var(--coupon-danger-light);
    color: var(--coupon-danger);
}

.expire-date.permanent {
    background: var(--coupon-gradient-success);
    color: var(--coupon-white);
    font-weight: 600;
}

/* 操作按钮 */
.coupon-actions {
    display: flex;
    justify-content: center;
}

.coupon-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--coupon-space-2);
    padding: var(--coupon-space-4) var(--coupon-space-8);
    border: none;
    border-radius: var(--coupon-radius-full);
    font-size: var(--coupon-font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--coupon-transition);
    position: relative;
    overflow: hidden;
}

.coupon-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.coupon-btn:hover::before {
    left: 100%;
}

.coupon-btn-primary {
    background: var(--coupon-gradient-primary);
    color: var(--coupon-white);
    box-shadow: var(--coupon-shadow-md);
}

.coupon-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--coupon-shadow-lg);
}

.coupon-btn-disabled {
    background: var(--coupon-gray-300);
    color: var(--coupon-gray-500);
    cursor: not-allowed;
}

.coupon-btn-disabled:hover {
    transform: none;
}

.btn-icon {
    font-size: var(--coupon-font-size-lg);
    transition: var(--coupon-transition);
}

.coupon-btn:hover .btn-icon {
    transform: scale(1.2);
}

/* 装饰元素 */
.coupon-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.decoration-circle {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--coupon-white);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
}

.decoration-left {
    left: -10px;
    box-shadow: inset 2px 0 0 var(--coupon-gray-200);
}

.decoration-right {
    right: -10px;
    box-shadow: inset -2px 0 0 var(--coupon-gray-200);
}

.decoration-dots {
    position: absolute;
    top: 50%;
    left: 20px;
    right: 20px;
    height: 1px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateY(-50%);
}

.decoration-dots .dot {
    width: 4px;
    height: 4px;
    background: var(--coupon-gray-300);
    border-radius: 50%;
    opacity: 0.6;
}

/* 优惠码列表样式 */
.coupon-list {
    margin: var(--coupon-space-6) 0;
}

/* 网格布局 */
.coupon-grid {
    display: grid;
    grid-template-columns: repeat(var(--columns, 2), 1fr);
    gap: var(--coupon-space-6);
}

@media (max-width: 768px) {
    .coupon-grid {
        grid-template-columns: 1fr !important;
    }
}

/* 列表布局 */
.coupon-list-container {
    display: flex;
    flex-direction: column;
    gap: var(--coupon-space-4);
}

.coupon-list-item .coupon-card {
    max-width: 100%;
}

/* 紧凑布局 */
.coupon-compact-list {
    display: flex;
    flex-direction: column;
    gap: var(--coupon-space-3);
}

.coupon-compact-item {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-4);
    padding: var(--coupon-space-4);
    background: var(--coupon-white);
    border: 1px solid var(--coupon-gray-200);
    border-radius: var(--coupon-radius-lg);
    transition: var(--coupon-transition);
}

.coupon-compact-item:hover {
    box-shadow: var(--coupon-shadow-md);
    border-color: var(--coupon-primary-light);
}

.coupon-compact-item.expired {
    opacity: 0.6;
}

.compact-content {
    flex: 1;
}

.compact-title {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-2);
    margin-bottom: var(--coupon-space-2);
}

.compact-title h4 {
    margin: 0;
    font-size: var(--coupon-font-size-base);
    font-weight: 600;
    color: var(--coupon-gray-900);
}

.compact-badge {
    font-size: var(--coupon-font-size-xs);
    padding: var(--coupon-space-1) var(--coupon-space-2);
    border-radius: var(--coupon-radius-sm);
    font-weight: 600;
}

.compact-badge.active {
    background: var(--coupon-secondary);
    color: var(--coupon-white);
}

.compact-badge.expired {
    background: var(--coupon-danger);
    color: var(--coupon-white);
}

.compact-description {
    font-size: var(--coupon-font-size-sm);
    color: var(--coupon-gray-600);
    margin-bottom: var(--coupon-space-2);
    line-height: 1.4;
}

.compact-expire {
    font-size: var(--coupon-font-size-xs);
    color: var(--coupon-gray-500);
    font-weight: 500;
}

.compact-code {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-2);
}

.compact-code-display code {
    background: var(--coupon-gray-100);
    color: var(--coupon-primary);
    padding: var(--coupon-space-2) var(--coupon-space-3);
    border-radius: var(--coupon-radius);
    font-weight: 600;
    font-size: var(--coupon-font-size-sm);
    font-family: 'Courier New', monospace;
    letter-spacing: 0.05em;
}

.compact-copy-btn {
    background: none;
    border: none;
    font-size: var(--coupon-font-size-lg);
    cursor: pointer;
    opacity: 0.6;
    transition: var(--coupon-transition);
}

.compact-copy-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.compact-use-btn {
    background: var(--coupon-primary);
    color: var(--coupon-white);
    border: none;
    padding: var(--coupon-space-2) var(--coupon-space-4);
    border-radius: var(--coupon-radius);
    font-size: var(--coupon-font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--coupon-transition);
}

.compact-use-btn:hover {
    background: var(--coupon-primary-dark);
    transform: scale(1.05);
}

/* 消息提示 */
.coupon-messages {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
}

.coupon-message {
    display: flex;
    align-items: center;
    gap: var(--coupon-space-3);
    padding: var(--coupon-space-4) var(--coupon-space-6);
    border-radius: var(--coupon-radius-lg);
    box-shadow: var(--coupon-shadow-lg);
    margin-bottom: var(--coupon-space-3);
    font-weight: 600;
    animation: message-slide-in 0.3s ease-out;
}

@keyframes message-slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.coupon-message-success {
    background: var(--coupon-secondary);
    color: var(--coupon-white);
}

.coupon-message-error {
    background: var(--coupon-danger);
    color: var(--coupon-white);
}

.message-icon {
    font-size: var(--coupon-font-size-lg);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .coupon-card {
        max-width: 100%;
    }
    
    .coupon-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    :root {
        --coupon-space-6: 1rem;
        --coupon-space-4: 0.75rem;
    }
    
    .coupon-card {
        margin: var(--coupon-space-3) 0;
        border-radius: var(--coupon-radius-lg);
    }
    
    .coupon-header {
        padding: var(--coupon-space-4) var(--coupon-space-4) var(--coupon-space-3);
    }
    
    .coupon-title {
        font-size: var(--coupon-font-size-lg);
    }
    
    .coupon-description,
    .coupon-code-section {
        padding: var(--coupon-space-4);
    }
    
    .coupon-code-display {
        flex-direction: column;
        gap: var(--coupon-space-3);
    }
    
    .coupon-copy-btn {
        align-self: stretch;
        justify-content: center;
    }
    
    .coupon-compact-item {
        flex-direction: column;
        align-items: stretch;
        gap: var(--coupon-space-3);
    }
    
    .compact-code,
    .compact-action {
        align-self: center;
    }
}