/* ==================== 新布局样式 ==================== */

/* CSS 变量定义 - 由 JavaScript 动态设置 */

/* Header - 简洁灰色风格，左右布局 */
.header {
    padding: 0.75rem 2rem;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.header-content {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-left {
    display: flex;
    align-items: center;
}

.title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 下拉容器 */
.dropdown {
    position: relative;
}

.header-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.header-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-card);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 打开下拉时按钮保持主题高亮 */
.dropdown.active .header-btn {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-card);
}

.header-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.header-btn svg {
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
}

/* 下拉箭头 */
.dropdown-arrow {
    width: 0.75rem !important;
    height: 0.75rem !important;
    transition: transform 0.2s;
}

.dropdown.active .dropdown-arrow {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    width: 100%;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
    z-index: 1000;
    overflow: hidden;
}

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

/* 下拉菜单项 */
.dropdown-item {
    padding: 0.625rem 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.dropdown-item:hover {
    background: var(--color-card-hover);
    color: var(--color-text);
}

.dropdown-item.active {
    background: var(--color-primary);
    color: var(--color-card);
}

.dropdown-item span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Main Container - Flex Layout (全宽，无空白) */
.main-container {
    display: flex;
    width: 100%;
    height: calc(100vh - 3.125rem);
    gap: 0;
    overflow: hidden;
}

/* Left Sidebar (固定宽度，放置辅助信息) */
.left-sidebar {
    width: 18.75rem; /* 300px at 16px base, 225px at 12px */
    background: var(--sidebar-bg, var(--color-bg));
    border-right: 1px solid var(--sidebar-border, var(--color-border));
    overflow-y: auto;
    flex-shrink: 0;
    padding: 1.5rem;
    height: 100%;
}

/* 左侧栏细窄滚动条 */
.left-sidebar::-webkit-scrollbar {
    width: 0.25rem;
}

.left-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.left-sidebar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 0.125rem;
}

.left-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* 左侧栏卡片样式 */
.sidebar-section {
    background: var(--color-card);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.sidebar-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--sidebar-title, var(--color-text));
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--sidebar-border, var(--color-border));
}

/* 分类按钮 */
.category-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    color: var(--category-text, var(--color-text));
}

.category-btn:hover {
    background: var(--color-card-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.category-btn.active {
    background: var(--category-active, var(--color-primary));
    border-color: var(--category-active, var(--color-primary));
    color: var(--category-active-text, var(--color-card));
    font-weight: 500;
}

.category-btn-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-btn-icon {
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-btn-icon svg {
    width: 1.125rem;
    height: 1.125rem;
}

.category-btn-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-card-hover);
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
}

.category-btn.active .category-btn-count {
    background: var(--category-active-text, var(--color-card));
    color: var(--category-active, var(--color-primary));
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-box {
    text-align: center;
    padding: 1rem;
    background: var(--color-card);
    border-radius: 0.375rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* 热门工具列表 */
.popular-tools-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.popular-empty {
    padding: 1rem;
    border: 1px dashed var(--color-border);
    border-radius: 0.375rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    background: var(--color-card);
}

.popular-tool-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--hot-tool-bg, var(--color-card));
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--hot-tool-border, var(--color-border));
}

.popular-tool-item:hover {
    background: var(--color-card-hover);
    transform: translateX(2px);
}

.popular-tool-rank {
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-card);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.popular-tool-info {
    flex: 1;
    min-width: 0;
}

.popular-tool-name {
    font-size: 0.8125rem;
    color: var(--color-text);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.popular-tool-downloads {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
}

/* Main Content Area (占据所有剩余空间) */
.main-content {
    flex: 1;
    padding: 1.5rem 2rem;
    background: var(--color-bg);
    min-width: 0; /* 防止flex子元素溢出 */
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    height: 100%;
}

/* Search Bar */
.search-bar {
    margin-bottom: 2rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

/* 统计信息 - 内联显示（横向长方形） */
.stats-inline {
    display: flex;
    gap: 1rem;
    margin-left: auto;
    flex-shrink: 0;
}

.stat-item {
    display: flex;
    flex-direction: row !important;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-card);
    border-radius: 0.625rem;
    border: 1px solid var(--color-border);
    white-space: nowrap;
    min-width: 9.375rem; /* 150px */
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: all 0.2s;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-color: var(--color-border);
}

.stat-item .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
    margin: 0;
}

.stat-item .stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.2;
    font-weight: 500;
    display: flex;
    align-items: center;
    padding-top: 0.1rem;
}

/* Tools Section - 占据剩余空间 */
.tools-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 31.25rem; /* 500px */
    min-width: 18.75rem; /* 300px */
    border: none;
    background: transparent;
}
.search-input {
    display: block !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
}


.search-box svg {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    z-index: 2;
    width: 1.125rem;
    height: 1.125rem;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1.25rem 0.875rem 3.25rem;
    border: 1px solid var(--color-border);
    border-radius: 0.625rem;
    font-size: 0.9375rem;
    transition: all 0.2s;
    background: var(--color-card);
    outline: none;
    color: var(--color-text);
    font-family: inherit;
}

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

.search-box input:hover {
    background: var(--color-card-hover);
    border-color: var(--color-border);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-card);
    box-shadow: 0 0 0 3px var(--color-border);
}

/* Tools Section */
.tools-section {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    min-height: 0;
}

/* Tools Grid Container */
.tools-grid-container {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

/* Tools Grid - 自适应布局 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr)); /* 280px at 16px base */
    gap: 1rem;
    align-items: stretch;
    padding-bottom: 1rem;
}

/* Pagination - 固定在底部 */
.pagination {
    flex-shrink: 0;
    margin-top: 0;
    padding: 1rem 0 0.5rem 0;
    min-height: auto;
}

/* Footer */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 2rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.2s;
}

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

/* 响应式设计 */

@media (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(15.625rem, 1fr)); /* 250px at 16px base */
    }
}

@media (max-width: 1024px) {
    .left-sidebar {
        width: 13.75rem; /* 220px at 16px base */
    }

    .main-content {
        padding: 1.5rem;
    }
}

@media (max-width: 1200px) {
    .stats-inline {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
        height: auto;
        min-height: calc(100vh - 3.125rem);
        overflow: visible;
    }

    .left-sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: 1rem;
        overflow-y: visible;
    }

    .tools-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem;
    }

    .main-content {
        padding: 1rem;
        overflow-y: auto;
    }

    .header-content {
        padding: 0.5rem 1rem;
    }

    .title {
        font-size: 1rem;
    }

    .header-btn {
        padding: 0.375rem 0.625rem;
        font-size: 0.8125rem;
    }

    .header-btn svg {
        width: 0.875rem;
        height: 0.875rem;
    }

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

    .search-box {
        width: 100%;
        max-width: 100%;
    }

    .stats-inline {
        display: flex !important;
        width: 100%;
        justify-content: space-around;
        margin-left: 0;
    }

    .stat-item {
        min-width: auto;
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-right {
        gap: 0.25rem;
    }

    .header-btn {
        padding: 0.5rem;
    }
}