/* 
 * Islands Art Components
 * 包含：Header, Button, Input, Modal, Dropdown, Footer, Mobile Menu, Comment, Pagination
 */

/* ==========================================================================
   Header 组件
   ========================================================================== */
.site-header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.site-header .header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    height: 32px;
}

.site-logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

/* 导航链接 */
.main-nav {
    display: flex;
    gap: var(--spacing-6);
    margin: 0 var(--spacing-8);
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-2) 0;
    position: relative;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 700; /* 加粗 */
}

/* 移除原有的伪元素横线 */
.nav-link.active::after {
    display: none; 
}

/* 头部右侧操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

/* 按钮组件 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    border: 1px solid transparent;
    cursor: pointer;
    line-height: 1.2;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background: transparent;
}

.btn-icon:hover {
    background-color: var(--gray-100);
    color: var(--text-primary);
}

.btn-primary {
    background-color: var(--brand-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--gray-800);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-medium);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--text-primary);
    background-color: var(--gray-50);
}

/* Action Buttons (关注/点赞) - 精细化定制 */
.btn-action-follow {
    min-width: 72px;
    height: 32px;
    border: 1px solid var(--gray-900);
    background-color: transparent;
    color: var(--gray-900);
    font-size: 13px;
    transition: all 0.2s ease;
}

.btn-action-follow:hover {
    background-color: var(--gray-900);
    color: var(--color-white);
}

/* 已关注状态 */
.btn-action-follow.active {
    border-color: var(--gray-300);
    color: var(--gray-500);
}

.btn-action-follow.active:hover {
    border-color: var(--color-error);
    color: var(--color-error);
    background-color: transparent;
}

.btn-action-like {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    border: none;
    background-color: var(--gray-100);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 120px;
}

.btn-action-like i {
    font-size: 1.4em;
    line-height: 1;
    transition: transform 0.2s;
    color: var(--text-tertiary);
}

.btn-action-like span {
    font-weight: 500;
    font-size: 16px;
    font-variant-numeric: tabular-nums;
}

.btn-action-like:hover {
    background-color: var(--gray-200);
    color: var(--text-primary);
}

.btn-action-like:hover i {
    color: var(--text-secondary);
}

/* 点赞激活状态 */
.btn-action-like.active {
    background-color: #fff1f2; /* Rose 50 */
    color: #e11d48; /* Rose 600 */
}

.btn-action-like.active i {
    color: #e11d48;
    animation: heartBeat 0.3s forwards;
}

.btn-action-like:active {
    transform: scale(0.96);
}

/* 极简评论框 */
.input-minimal {
    background-color: var(--gray-50);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    padding: 16px;
    font-size: 15px;
    transition: all 0.2s ease;
    resize: none;
}

.input-minimal:focus {
    background-color: var(--color-white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
    outline: none;
}

/* 管理工具条链接 */
.admin-action-link {
    color: var(--text-tertiary);
    font-size: 13px;
    margin: 0 8px;
    transition: color 0.2s;
    text-decoration: none;
}

.admin-action-link:hover {
    color: var(--brand-accent);
}

/* 心跳动画 */
@keyframes heartBeat {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.btn-action-like.active i {
    animation: heartBeat 0.3s forwards;
}

/* Dropdown Menu */
.dropdown-trigger {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 200px;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-base);
    z-index: 1002;
}

.dropdown-trigger.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--text-secondary);
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.dropdown-item:hover {
    background-color: var(--gray-50);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-light);
    margin: var(--spacing-1) 0;
}

/* User Avatar */
.avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 1px solid var(--border-light);
}

.avatar-btn {
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
}

/* Badge */
.badge-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background-color: var(--color-error);
    border-radius: 50%;
    border: 1px solid var(--color-white);
}

/* ==========================================================================
   Form Components (Input/Textarea)
   ========================================================================== */
.form-control {
    display: block;
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-surface);
    background-clip: padding-box;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    box-sizing: border-box;
}

.form-control:focus {
    color: var(--text-primary);
    background-color: var(--bg-surface);
    border-color: var(--brand-accent);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: var(--text-tertiary);
    opacity: 1;
}

/* Modal 基础样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: var(--bg-surface);
    width: 90%;
    max-width: 480px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-float);
    transform: scale(0.95);
    transition: var(--transition-base);
    overflow: hidden;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

/* Search Modal 特化 */
.search-modal-card {
    max-width: 600px;
    padding: var(--spacing-6);
}

.search-input-group {
    display: flex;
    align-items: center;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: var(--spacing-2);
}

.search-input-group input {
    flex: 1;
    border: none;
    font-size: 18px;
    padding: var(--spacing-2);
    outline: none;
    background: transparent;
}

.search-input-group i {
    font-size: 20px;
    color: var(--text-tertiary);
}

/* ==========================================================================
   Footer 组件
   ========================================================================== */
.site-footer {
    background-color: var(--color-white);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-8) 0;
    margin-top: auto; /* 配合 flex layout 实现 sticky footer */
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
}

.footer-links {
    display: flex;
    gap: var(--spacing-4);
}

.footer-link {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-link:hover {
    color: var(--text-primary);
}

.footer-copyright {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* ==========================================================================
   Mobile Menu
   ========================================================================== */
#mobileMenu .bg-white {
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
}

#mobileMenu.active .bg-white {
    transform: translateX(0);
}

/* ==========================================================================
   Comment Component (评论区)
   ========================================================================== */
.comment-list {
    display: flex;
    flex-direction: column;
}

.comment-item {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-4) 0;
    border-bottom: 1px solid var(--border-light);
}

.comment-item:last-child {
    border-bottom: none;
}

.comment-avatar {
    flex-shrink: 0;
}

.comment-avatar img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 1px solid var(--border-light);
}

.comment-body {
    flex-grow: 1;
    min-width: 0; /* 防止内容溢出 */
}

.comment-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-2);
}

.comment-user {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    margin-right: var(--spacing-2);
    text-decoration: none;
}

.comment-meta {
    font-size: 12px;
    color: var(--text-tertiary);
}

.comment-content {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
    word-break: break-word;
}

.comment-actions {
    display: flex;
    gap: var(--spacing-4);
    font-size: 13px;
}

.comment-action-btn {
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
}

.comment-action-btn:hover {
    color: var(--brand-primary);
}

/* 回复列表 (嵌套评论) */
.recomment-list {
    margin-top: var(--spacing-3);
    padding: var(--spacing-3);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
}

.recomment-item {
    display: flex;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--border-light);
}

.recomment-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.recomment-avatar img {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.recomment-body {
    flex-grow: 1;
}

.recomment-content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.reply-to {
    color: var(--text-tertiary);
    margin-right: 4px;
}

/* 评论输入框样式 */
.comment-reply-form {
    margin-top: var(--spacing-3);
    padding: var(--spacing-3);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.reply-textarea {
    width: 100%;
    border: none;
    background: transparent;
    font-size: 14px;
    outline: none;
    min-height: 60px;
    resize: vertical;
}

.reply-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-2);
    margin-top: var(--spacing-2);
}

/* 加载更多回复按钮 */
.load-more-replies {
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--border-light);
    text-align: center;
}

.load-more-replies a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    transition: all 0.2s ease;
}

.load-more-replies a:hover {
    background-color: var(--gray-100);
    color: var(--text-primary);
}

.load-more-replies a.loading {
    opacity: 0.6;
    pointer-events: none;
}

.load-more-replies a.is-expanded {
    color: var(--text-tertiary);
}

/* 隐藏的回复项 (收起状态) */
.recomment-item-hidden:not(.is-visible) {
    display: none !important;
}
.recomment-item-hidden.is-visible {
    display: flex !important;
}

/* 评论中的图片 - 缩略图，横向3列布局 */
.comment-content img,
.recomment-content img {
    display: inline-block;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    cursor: pointer;
    object-fit: cover;
    margin: 4px 6px 4px 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    vertical-align: top;
}

.comment-content img:hover,
.recomment-content img:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* 回复区图片稍小 */
.recomment-content img {
    width: 64px;
    height: 64px;
}

/* 图片灯箱 */
.comment-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.comment-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.comment-lightbox-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    cursor: pointer;
}

.comment-lightbox img {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    cursor: default;
}

.comment-lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 2;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.comment-lightbox-close:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.1);
}

/* ==========================================================================
   Pagination Component (分页) - 极简/强力重置
   ========================================================================== */
.minimal-pagination * {
    box-sizing: border-box;
}

.minimal-pagination ul, 
.minimal-pagination ol, 
.minimal-pagination li, 
.minimal-pagination div {
    display: inline-flex !important;
    flex-direction: row !important;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    width: auto !important;
}

.minimal-pagination .pagination {
    gap: 4px;
    align-items: center;
    justify-content: center;
}

.minimal-pagination .page-link,
.minimal-pagination a,
.minimal-pagination span {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    border: none !important;
    background: transparent !important;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md) !important;
    text-decoration: none !important;
    transition: all 0.2s ease;
    float: none !important;
}

.minimal-pagination .active .page-link,
.minimal-pagination .active span {
    background-color: var(--brand-primary) !important;
    color: var(--color-white) !important;
    box-shadow: var(--shadow-sm);
}

.minimal-pagination a:hover:not(.active) {
    background-color: var(--gray-100) !important;
    color: var(--text-primary) !important;
}

/* ==========================================================================
   Filter Nav Component (筛选导航)
   ========================================================================== */
.topic-filter-nav {
    display: flex;
    gap: 24px;
}

.filter-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-decoration: none;
    position: relative;
    padding: 4px 0;
    transition: color 0.2s ease;
}

.filter-link:hover {
    color: var(--text-primary);
}

.filter-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

.filter-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--brand-primary);
    border-radius: 1px;
}

/* ==========================================================================
   响应式调整
   ========================================================================== */
@media (max-width: 768px) {
    .main-nav {
        display: none; /* 移动端隐藏桌面导航 */
    }
    
    .site-header {
        padding: 0 var(--spacing-2);
    }
}

@media (min-width: 769px) {
    .d-md-none {
        display: none !important;
    }
}

/* ==========================================================================
   Confirm Modal Component (确认弹窗) - Islands Art Style
   ========================================================================== */
.ts-confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.ts-confirm-overlay.show {
    opacity: 1;
    visibility: visible;
}

.ts-confirm-modal {
    width: 100%;
    max-width: 360px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transform: scale(0.95);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
}

.ts-confirm-modal.show {
    transform: scale(1);
    opacity: 1;
}

.ts-confirm-header {
    padding: 24px 24px 0;
    text-align: center;
}

.ts-confirm-title {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin: 0;
    line-height: 1.4;
}

.ts-confirm-body {
    padding: 12px 24px 24px;
    text-align: center;
}

.ts-confirm-msg {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
    margin: 0;
}

.ts-confirm-footer {
    display: flex;
    gap: 12px;
    padding: 0 24px 24px;
}

.ts-confirm-btn {
    flex: 1;
    height: 44px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ts-confirm-cancel {
    background: #f3f4f6;
    color: #374151;
}

.ts-confirm-cancel:hover {
    background: #e5e7eb;
}

.ts-confirm-ok {
    background: #111827;
    color: #fff;
}

.ts-confirm-ok:hover {
    background: #1f2937;
}

/* 警告类型 */
.ts-confirm-modal[data-type="warning"] .ts-confirm-ok {
    background: #f59e0b;
}
.ts-confirm-modal[data-type="warning"] .ts-confirm-ok:hover {
    background: #d97706;
}

/* 危险类型 */
.ts-confirm-modal[data-type="danger"] .ts-confirm-ok {
    background: #ef4444;
}
.ts-confirm-modal[data-type="danger"] .ts-confirm-ok:hover {
    background: #dc2626;
}