/* ============================================
   页面样式 - 书架、发现、历史、书签、搜索、详情
   ============================================ */

/* 通用页面容器 */
.page {
    padding: var(--spacing-md);
    animation: fadeIn var(--transition-normal) ease;
}

.page-section {
    margin-bottom: var(--spacing-lg);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.section-more {
    font-size: var(--font-size-sm);
    color: var(--primary);
}

/* ========== 书架页面 ========== */
.shelf-page {
    padding-bottom: var(--spacing-xl);
}

.shelf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.shelf-title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    color: var(--primary);
}

.shelf-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.shelf-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 480px) {
    .shelf-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.shelf-item {
    position: relative;
}

.shelf-item .novel-grid-card {
    height: 100%;
}

.shelf-item .unread-badge {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background: #e74c3c;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    z-index: 1;
}

.shelf-item .reading-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--bg-hover);
}

.shelf-item .reading-progress-bar {
    height: 100%;
    background: var(--primary);
    transition: width var(--transition-normal);
}

/* ========== 发现/探索页面 ========== */
.explore-page {
    padding-bottom: var(--spacing-xl);
}

.explore-banner {
    position: relative;
    height: 160px;
    margin: calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--primary-dark) 100%);
    overflow: hidden;
}

.explore-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.explore-banner-content {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg);
    padding-top: calc(var(--spacing-lg) + var(--spacing-md));
}

.explore-banner h2 {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    color: white;
    margin-bottom: var(--spacing-xs);
}

.explore-banner p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

/* 标签云 */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.tag-btn:active {
    background: var(--primary);
    color: var(--bg-primary);
}

.tag-btn.active {
    background: var(--primary);
    color: var(--bg-primary);
}

/* 小说列表 */
.novel-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* 推荐列表横向滚动 */
.novel-scroll {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--spacing-sm);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.novel-scroll::-webkit-scrollbar {
    display: none;
}

.novel-scroll .novel-grid-card {
    flex-shrink: 0;
    width: 120px;
    scroll-snap-align: start;
}

/* ========== 历史页面 ========== */
.history-page {
    padding-bottom: var(--spacing-xl);
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.history-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.clear-history-btn {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.history-date-group {
    margin-bottom: var(--spacing-lg);
}

.history-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
}

/* ========== 书签页面 ========== */
.bookmarks-page {
    padding-bottom: var(--spacing-xl);
}

.bookmarks-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.bookmarks-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.bookmarks-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.bookmark-item {
    cursor: pointer;
}

.bookmark-item .bookmark-note {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-style: italic;
}

/* ========== 搜索页面 ========== */
#search-panel {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 200;
    display: flex;
    flex-direction: column;
}

.search-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    padding-top: calc(var(--spacing-md) + var(--safe-area-top));
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.search-input-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-full);
}

.search-input-wrap svg {
    width: 20px;
    height: 20px;
    fill: var(--text-muted);
    flex-shrink: 0;
}

.search-input-wrap input {
    flex: 1;
    font-size: var(--font-size-md);
}

.search-input-wrap input::placeholder {
    color: var(--text-muted);
}

#search-clear {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#search-clear svg {
    width: 18px;
    height: 18px;
}

.search-tags {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    max-height: 40vh;
    overflow-y: auto;
}

.search-section {
    margin-bottom: var(--spacing-md);
}

.search-section:last-child {
    margin-bottom: 0;
}

.search-tags-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.search-tags-title {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.search-tags .clear-history-btn {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
}

.search-tags .tags-cloud {
    gap: var(--spacing-xs);
}

/* 搜索历史标签样式 */
.history-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding-right: 6px !important;
}

.history-tag .remove-history {
    fill: var(--text-muted);
    opacity: 0.6;
    cursor: pointer;
    flex-shrink: 0;
}

.history-tag .remove-history:hover {
    opacity: 1;
    fill: #e74c3c;
}

.search-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-md) + var(--safe-area-bottom));
}

.search-hint {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

/* ========== 小说详情页面 ========== */
.detail-page {
    padding: 0;
    /* 底部留出操作栏空间：按钮高度(52px) + padding(32px) + 安全区域 */
    padding-bottom: calc(100px + var(--safe-area-bottom));
}

.detail-header {
    position: relative;
    padding: var(--spacing-lg);
    padding-top: var(--spacing-xl);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.detail-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-secondary);
    opacity: 0.8;
    z-index: -1;
}

.detail-cover-wrap {
    display: flex;
    gap: var(--spacing-lg);
}

.detail-cover {
    width: 120px;
    height: 165px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    flex-shrink: 0;
}

.detail-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-meta {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    line-height: 1.3;
}

.detail-author {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
}

.detail-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: auto;
}

.detail-stat {
    text-align: center;
}

.detail-stat-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary);
}

.detail-stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
}

.detail-synopsis {
    padding: var(--spacing-md) var(--spacing-lg);
}

.detail-synopsis h3 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
}

.detail-synopsis p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

.detail-synopsis .expand-btn {
    display: inline;
    color: var(--primary);
    font-size: var(--font-size-sm);
}

.detail-chapters {
    padding: var(--spacing-md) var(--spacing-lg);
}

.detail-chapters h3 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.detail-chapters .chapter-count {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: normal;
}

.chapters-preview {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.chapters-preview .chapter-item:last-child {
    border-bottom: none;
}

.view-all-chapters {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    color: var(--primary);
    font-size: var(--font-size-sm);
    border-top: 1px solid var(--border-color);
}

.view-all-chapters svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* 详情页底部操作栏 */
.detail-actions {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-md) + var(--safe-area-bottom));
    padding-left: max(var(--spacing-md), var(--safe-area-left));
    padding-right: max(var(--spacing-md), var(--safe-area-right));
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    z-index: 50;
}

.detail-actions button {
    flex: 1;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.detail-actions svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.btn-shelf {
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn-shelf.in-shelf {
    color: var(--primary);
}

.btn-read {
    background: var(--primary);
    color: var(--bg-primary);
}

.btn-read:active {
    background: var(--primary-dark);
}