@import url('cwiki-base.css');

/* ==================== 搜索表单 ==================== */
.search-group {
    display: flex;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.search-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-input {
    flex: 1;
    padding: 1.5rem 1.75rem;
    border: none;
    outline: none;
    font-size: 1.5rem;
    background: white;
    color: var(--text-primary);
}

.search-input::placeholder {
    color: var(--text-muted);
    font-size: 1.375rem;
}

.search-btn {
    padding: 1.5rem 1.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 70px;
}

.search-btn:hover {
    background: var(--primary-hover);
}

.search-btn i {
    font-size: 1.5rem;
}

/* ==================== 搜索信息 ==================== */
.search-info {
    margin-top: 1.5rem;
    padding: 1.25rem 1.75rem;
    background: #f0f9ff;
    border: 1px solid #0ea5e9;
    border-radius: var(--border-radius-sm);
    color: #0c4a6e;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-info p {
    margin: 0;
    font-size: 1.375rem;
}

.clear-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #dc2626;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.clear-search:hover {
    color: #b91c1c;
    text-decoration: none;
}

/* ==================== 搜索结果 ==================== */
.search-results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.result-item {
    padding: 1.75rem;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    cursor: pointer;
}

.result-item:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.result-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
}

.result-main {
    flex: 1;
}

.result-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
}

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

.result-title a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.result-meta {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.result-id,
.result-author,
.result-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    color: var(--text-muted);
}

.result-id i,
.result-author i,
.result-date i {
    font-size: 1.125rem;
}

.result-course {
    flex-shrink: 0;
}

.course-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 20px;
    font-size: 1.25rem;
    font-weight: 600;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.page-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: 1.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.page-btn:hover {
    background: var(--primary-hover);
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

.page-btn.prev-btn,
.page-btn.next-btn {
    padding: 1rem 1.25rem;
}

.page-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.page-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: white;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.page-number:hover {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-color: var(--primary-color);
}

.page-number.current {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-info {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

/* ==================== 统计卡片 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.375rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==================== 学科选择器 ==================== */
.subjects-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); 
    gap: 1rem;
}

.subject-selector-item {
    display: block;
    padding: 1.5rem 1.25rem; /* 减少padding */
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.subject-selector-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.subject-selector-item:hover {
    background: #f8fafc;
    border-color: var(--primary-color);
    text-decoration: none;
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.subject-selector-item:hover::before {
    transform: scaleY(1);
}

.subject-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.subject-name {
    font-size: 1.5rem; /* 从1.75rem减少到1.5rem */
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.subject-count {
    font-size: 1rem; /* 从1.125rem减少到1rem */
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(37, 99, 235, 0.1);
    padding: 0.25rem 0.75rem; /* 减少padding */
    border-radius: 15px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

.subject-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    opacity: 0.8;
}

.course-preview {
    font-size: 1rem;
    color: var(--text-secondary);
    background: #f1f5f9;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-weight: 500;
}

.subject-arrow {
    position: absolute;
    top: 50%;
    right: 1.5rem;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.subject-selector-item:hover .subject-arrow {
    color: var(--primary-color);
    transform: translateY(-50%) translateX(4px);
}

/* ==================== 学科详情 ==================== */
.subject-detail {
    margin-top: 2rem;
}

.subject-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.subject-detail-title {
    font-size: 2.25rem !important;
    font-weight: 600 !important;
    margin: 0 !important;
    color: var(--text-primary) !important;
    display: flex !important;
    align-items: center !important;
    gap: 1rem !important;
}

.subject-detail-title::before {
    display: none !important;
}

.back-to-subjects {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: 1.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.back-to-subjects:hover {
    background: #475569;
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}

.course-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    background: white;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1.25rem;
    font-weight: 500;
    transition: var(--transition);
    min-height: 60px;
    position: relative;
    overflow: hidden;
}

.course-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.course-item:hover {
    background: #f8fafc;
    color: var(--text-primary);
    text-decoration: none;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.course-item:hover::before {
    transform: scaleY(1);
}

.course-code {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    flex: 1;
}

.course-item i {
    font-size: 1rem;
    opacity: 0.7;
    transition: var(--transition);
}

.course-item:hover i {
    opacity: 1;
    transform: translateX(2px);
}

/* ==================== 空状态改进 ==================== */
.empty-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .search-input {
        font-size: 1.25rem;
        padding: 1.25rem 1.5rem;
    }

    .search-btn {
        padding: 1.25rem 1.5rem;
    }

    .search-btn i {
        font-size: 1.25rem;
    }

    .search-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .result-content {
        flex-direction: column;
        gap: 1rem;
    }

    .result-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .course-badge {
        align-self: flex-start;
        font-size: 1.125rem;
        padding: 0.5rem 1rem;
    }

    .subjects-selector {
        grid-template-columns: 1fr;
    }

    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.75rem;
    }

    .course-item {
        font-size: 1.125rem;
        padding: 1rem 1.25rem;
        min-height: 50px;
    }

    .pagination {
        flex-direction: column;
        gap: 1rem;
    }

    .page-numbers {
        order: -1;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .empty-actions {
        flex-direction: column;
        align-items: center;
    }

    .subject-detail-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .subject-arrow {
        display: none;
    }

    .subject-preview {
        max-height: 60px;
        overflow: hidden;
        position: relative;
    }
}

@media (max-width: 480px) {
    .search-input {
        font-size: 16px;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .result-title {
        font-size: 1.5rem;
    }

    .course-item {
        justify-content: center;
    }

    .course-item i {
        display: none;
    }

    .subject-selector-item {
        padding: 1.5rem 1.25rem;
    }

    .subject-name {
        font-size: 1.5rem;
    }
}