/**
 * AI 提示词库 - 自定义样式
 * AI Prompt Gallery - Custom Styles
 */

/* ============================================
   CSS 变量
   ============================================ */
:root {
    --primary-color: #6366F1;
    --primary-hover: #4F46E5;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    --danger-color: #EF4444;
    --bg-color: #F0F0F3;
    --card-bg: #FFFFFF;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.3s ease;
}

/* ============================================
   全局样式
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.main-content {
    min-height: calc(100vh - 200px);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    padding: 0.75rem 0;
}

.navbar-brand {
    font-size: 1.25rem;
    color: var(--text-primary) !important;
}

.navbar-brand:hover {
    color: var(--primary-color) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-color) !important;
    background-color: rgba(99, 102, 241, 0.1);
}

/* ============================================
   英雄区域
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #8B5CF6 100%);
    color: white;
    padding: 4rem 0;
    margin-bottom: 2rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ============================================
   提示词卡片
   ============================================ */
.prompt-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

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

.prompt-card .card-img-wrapper {
    position: relative;
    padding-top: 66.67%;
    /* 3:2 比例 */
    overflow: hidden;
    background: linear-gradient(135deg, #E0E7FF 0%, #C7D2FE 100%);
}

.prompt-card .card-img-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.prompt-card:hover .card-img-wrapper img {
    transform: scale(1.05);
}

.prompt-card .card-img-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.prompt-card .card-body {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.prompt-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-primary);
}

.prompt-card .card-title a {
    color: inherit;
}

.prompt-card .card-title a:hover {
    color: var(--primary-color);
}

.prompt-card .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: 0.75rem;
}

.prompt-card .tag {
    font-size: 0.75rem;
    padding: 0.125rem 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
}

.prompt-card .card-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.prompt-card .card-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.prompt-card .copy-btn {
    margin-left: auto;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    border-radius: var(--radius-md);
}

/* ============================================
   分类标签
   ============================================ */
.category-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

.category-badge:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.category-badge.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.category-badge i {
    margin-right: 0.5rem;
}

/* ============================================
   筛选栏
   ============================================ */
.filter-bar {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-tag {
    padding: 0.375rem 0.75rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-tag:hover,
.filter-tag.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ============================================
   提示词详情页
   ============================================ */
.prompt-detail {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.prompt-content {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.9rem;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
    position: relative;
}

.prompt-content .copy-icon {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.5rem;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.prompt-content .copy-icon:hover {
    background: var(--primary-color);
    color: white;
}

.prompt-tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1rem;
}

.prompt-tabs .nav-link {
    border: none;
    color: var(--text-muted);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    position: relative;
}

.prompt-tabs .nav-link.active {
    color: var(--primary-color);
    background: none;
}

.prompt-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

/* ============================================
   点赞按钮
   ============================================ */
.like-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.like-btn:hover {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.like-btn.liked {
    background: #FEE2E2;
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.like-btn.liked i {
    animation: heartbeat 0.3s ease;
}

@keyframes heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* ============================================
   侧边栏
   ============================================ */
.sidebar-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-card h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-list li {
    margin-bottom: 0.5rem;
}

.sidebar-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.sidebar-list a:hover {
    background: var(--bg-color);
    color: var(--primary-color);
}

.sidebar-list .count {
    font-size: 0.75rem;
    background: var(--bg-color);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
}

/* ============================================
   分页
   ============================================ */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.pagination .page-link {
    color: var(--text-secondary);
    border-color: var(--border-color);
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: var(--radius-md) !important;
}

.pagination .page-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* ============================================
   加载中动画
   ============================================ */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.loading-spinner::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Toast 提示
   ============================================ */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
}

.toast {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--secondary-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.5;
    margin-bottom: 1rem;
}

.empty-state h4 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
    .hero-section {
        padding: 2.5rem 0;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }

    .prompt-detail {
        padding: 1.25rem;
    }

    .prompt-content {
        font-size: 0.85rem;
        padding: 1rem;
    }

    .filter-bar {
        padding: 0.75rem;
    }

    .sidebar-card {
        display: none;
    }

    .category-badge {
        padding: 0.375rem 0.75rem;
        font-size: 0.8rem;
    }
}

/* ============================================
   深色模式支持（可选）
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        /* 如需支持深色模式，在此定义变量覆盖 */
    }
}

/* ============================================
   分类导航 - 简洁水平样式
   ============================================ */
.category-nav-section {
    margin-bottom: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.category-nav-wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
}

.category-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.category-nav-item:hover {
    color: var(--primary-color);
    background-color: rgba(99, 102, 241, 0.08);
}

.category-nav-item.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, #8B5CF6 100%);
    color: white;
    font-weight: 600;
}

.category-nav-item.active:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, #7C3AED 100%);
    color: white;
}

.category-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.category-count {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 400;
}

.category-nav-item.active .category-count {
    color: rgba(255, 255, 255, 0.75);
}

/* 分类导航分隔符 */
.category-nav-item:not(.active):not(:first-child)::before {
    content: '';
    width: 1px;
    height: 14px;
    background-color: var(--border-color);
    margin-right: 0.25rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .category-nav-wrapper {
        gap: 0.125rem;
    }

    .category-nav-item {
        padding: 0.375rem 0.625rem;
        font-size: 0.8rem;
    }

    .category-nav-item:not(.active):not(:first-child)::before {
        display: none;
    }
}