/* TTS Model Lab CSS - Professional UI Design with Navigation */
:root {
    /* Enhanced Color System - Modern & Sophisticated */
    --color-primary: #10B981;
    --color-primary-hover: #059669;
    --color-primary-light: rgba(16, 185, 129, 0.08);
    --color-primary-dark: #047857;
    --color-secondary: #2563EB;
    --color-secondary-hover: #1D4ED8;
    
    /* Background & Surface Colors */
    --color-background: #FAFBFC;
    --color-surface: #FFFFFF;
    --color-surface-hover: #F8FAFC;
    --color-surface-elevated: #FFFFFF;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-divider: #CBD5E1;
    
    /* Text Colors - Enhanced Hierarchy */
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-placeholder: #94A3B8;
    --color-text-inverse: #FFFFFF;
    
    /* Accent Colors */
    --color-accent-blue: #EFF6FF;
    --color-accent-blue-dark: #DBEAFE;
    --color-accent-green: #ECFDF5;
    --color-accent-green-dark: #D1FAE5;
    --color-success: #059669;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    
    /* Typography System */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-family-display: 'Inter', system-ui, sans-serif;
    
    /* Font Sizes - Golden Ratio Based */
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 40px;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing System - 8pt Grid */
    --spacing-0: 0;
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --spacing-10: 40px;
    --spacing-12: 48px;
    --spacing-16: 64px;
    --spacing-20: 80px;
    
    /* Border Radius System */
    --radius-xs: 2px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadow System - Layered & Subtle */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family-primary);
    background: #FFFFFF;
    color: var(--color-text-primary);
    line-height: var(--line-height-normal);
    font-size: var(--font-size-base);
    min-height: 100vh;
    padding-top: 64px; /* Account for fixed navbar */
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
}

/* Navigation styles removed - using centralized navbar.css */

.btn {
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 400;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
}

.btn-outline {
    background: transparent;
    color: #374151;
    border: 1px solid transparent;
}

.btn-outline:hover {
    background: #f9fafb;
    border-color: #e5e7eb;
}

.btn-primary {
    background: #000000;
    color: #ffffff;
    border: 1px solid #000000;
}

.btn-primary:hover {
    background: #1f2937;
    transform: translateY(-1px);
}

.page-wrapper {
    min-height: calc(100vh - 64px);
}

/* Compact Header Design */
.compact-header {
    background: #FFFFFF;
    padding: var(--spacing-8) 0;
}

.compact-header .header-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-family: var(--font-family-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
    margin: 0;
}

/* High-end Filter Section */
.filter-section {
    background: #FFFFFF;
    padding: var(--spacing-6) 0 var(--spacing-8) 0;
}

/* Borderless Filter Controls */
.filter-controls {
    display: flex;
    gap: var(--spacing-8);
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    background: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
}

.filter-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.filter-btn {
    padding: var(--spacing-2) var(--spacing-4);
    border: none;
    border-radius: var(--radius-lg);
    background: #F3F4F6;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
}

.filter-btn:hover {
    background: #E5E7EB;
    color: var(--color-text-primary);
    transform: translateY(-1px);
}

.filter-btn.active {
    background: var(--color-text-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

/* Optimized Search Container */
.search-container {
    flex: 1;
    max-width: 500px;
    min-width: 300px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-5) var(--spacing-3) var(--spacing-10);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-lg);
    background: #FFFFFF;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-primary);
    outline: none;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
    height: 44px;
}

.search-input::placeholder {
    color: var(--color-text-placeholder);
    font-weight: var(--font-weight-normal);
}

.search-input:focus {
    background: #FFFFFF;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
    border-color: rgba(0, 0, 0, 0.15);
}

.search-icon {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--color-text-placeholder);
    transition: color var(--transition-fast);
}

.search-input:focus + .search-icon {
    color: var(--color-primary);
}

/* Fixed Main Content */
.main-content {
    padding: var(--spacing-6) 0;
    /* Ensure content is above background elements */
    position: relative;
    z-index: 1;
}

.main-content .container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Fixed Model Grid */
.model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
    margin: 0;
    padding: 0;
    /* Ensure grid items are clickable */
    position: relative;
    z-index: 1;
}

/* === 全新卡片设计 - 确保最上层显示 === */
.model-card {
    /* 强制最上层显示 */
    position: relative;
    z-index: 1;
    /* 移除isolation: isolate，它可能阻止内部元素的交互 */
    
    /* 基础布局 */
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 280px;
    
    /* 外观设计 */
    background: #FFFFFF;
    border: 1px solid rgb(0,0,0);
    border-radius: 16px;
    padding: 0;
    margin: 0;
    
    /* 阴影系统 */
    box-shadow: 
        0 1px 3px 0 rgba(0, 0, 0, 0.1),
        0 1px 2px 0 rgba(0, 0, 0, 0.06);
    
    /* 交互 */
    cursor: pointer;
    overflow: hidden;
    
    /* 过渡动画 */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 字体基础 */
    font-family: var(--font-family-primary);
    color: var(--color-text-primary);
}

/* 卡片悬停效果 */
.model-card:hover {
    /* 更高层级 */
    z-index: 2;
    
    /* 视觉提升 */
    transform: translateY(-8px) scale(1.02);
    border-color: var(--color-primary);
    background: #FEFEFE;
    
    /* 强化阴影 */
    box-shadow: 
        0 20px 40px -12px rgba(16, 185, 129, 0.25),
        0 8px 16px -4px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(16, 185, 129, 0.05);
}

/* 激活状态 */
.model-card:active {
    transform: translateY(-4px) scale(1.01);
    transition-duration: 0.1s;
}


/* 卡片头部重新设计 */
.card-header {
    /* 布局 */
    display: flex;
    flex-direction: column;
    padding: 24px 24px 16px 24px;
    gap: 12px;
    flex: 1;
    
    /* 层级确保 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 背景 */
    background: transparent;
}

/* 模型信息区域 */
.model-info {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    width: 100%;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
}

/* 模型图标 */
.model-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* 渐变背景 */
    background: linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%);
    border: 2px solid #BBF7D0;
    border-radius: 12px;
    
    /* 布局 */
    flex-shrink: 0;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 图标悬停效果 */
.model-card:hover .model-icon {
    transform: scale(1.15) rotate(8deg);
    background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* 模型文本区域 */
.model-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
}

/* 模型名称 */
.model-name {
    /* 字体样式 */
    font-family: var(--font-family-primary);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.2;
    color: rgb(0,0,0);
    
    /* 布局 */
    margin: 0;
    padding: 0;
    
    /* 文本处理 */
    letter-spacing: -0.02em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.25s ease;
}

/* 名称悬停效果 */
.model-card:hover .model-name {
    color: var(--color-primary);
    transform: translateX(2px);
}

/* 模型描述 */
.model-description {
    font-size: 14px;
    font-weight: 500;
    color: rgb(0,0,0);
    line-height: 1.4;
    margin: 0;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.25s ease;
}

/* 描述悬停效果 */
.model-card:hover .model-description {
    color: #374151;
    transform: translateX(2px);
}

/* 标签容器 */
.model-tags {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin-top: 8px;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
}

/* 标签样式 */
.tag {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.2s ease;
    transform: translateZ(0); /* 硬件加速 */
}

/* 标签悬停效果 */
.tag:hover {
    transform: translateY(-1px) scale(1.05);
}

.tag.hot {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent-green-dark) 100%);
    color: var(--color-success);
    border: 1px solid var(--color-primary-light);
}

.tag.new {
    background: linear-gradient(135deg, var(--color-accent-blue) 0%, var(--color-accent-blue-dark) 100%);
    color: var(--color-secondary);
    border: 1px solid var(--color-accent-blue-dark);
}

.tag.recommended {
    background: linear-gradient(135deg, var(--color-accent-green) 0%, var(--color-accent-green-dark) 100%);
    color: var(--color-success);
    border: 1px solid var(--color-accent-green-dark);
}

/* 卡片内容区域 */
.card-content {
    /* 布局 */
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 20px 24px 24px 24px;
    
    /* 背景 */
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
    
    /* 边框 */
    border-top: 1px solid rgb(0,0,0);
    
    /* 布局控制 */
    margin-top: auto;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 内容区域悬停效果 */
.model-card:hover .card-content {
    background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
    border-top-color: rgb(0,0,0);
    transform: translateY(-2px);
}

/* 模型详情 */
.model-detail {
    font-size: 14px;
    font-weight: 500;
    color: rgb(0,0,0);
    line-height: 1.4;
    
    /* 布局 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0;
    
    /* 层级 */
    position: relative;
    z-index: auto;
    
    /* 确保可交互 */
    pointer-events: auto;
    
    /* 动画 */
    transition: all 0.25s ease;
}

/* 详情悬停效果 */
.model-card:hover .model-detail {
    color: #374151;
    transform: translateX(1px);
}

.model-detail strong {
    color: rgb(0,0,0);
    font-weight: var(--font-weight-semibold);
}

/* 卡片操作提示 */
.card-action-hint {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 8px;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.model-card:hover .card-action-hint {
    opacity: 1;
    transform: translateX(2px);
}

.card-action-hint svg {
    transition: transform 0.3s ease;
}

.model-card:hover .card-action-hint svg {
    transform: translateX(2px);
}

/* Premium Pagination */
.pagination-container {
    padding: var(--spacing-8) 0;
    display: flex;
    justify-content: center;
    background: #FFFFFF;
    margin-top: var(--spacing-8);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    background: transparent;
    padding: 0;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}



.pagination-btn:hover:not(:disabled) {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
}

.pagination-btn.active {
    background: var(--color-text-primary);
    color: #FFFFFF;
    font-weight: var(--font-weight-semibold);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: transparent;
}

/* Loading States */
.loading {
    /* 移除loading的全局透明度，防止影响卡片显示 */
    opacity: 1;
}

.skeleton {
    background: linear-gradient(90deg, var(--color-border-light) 25%, var(--color-surface-hover) 50%, var(--color-border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* No Results State */
.no-results {
    text-align: center;
    padding: var(--spacing-20);
    color: var(--color-text-muted);
    grid-column: 1 / -1;
}

.no-results p {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
}

/* Navigation responsive styles removed - using centralized navbar.css */

/* Content Responsive Design */
@media (max-width: 1200px) {
    .model-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-controls {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .search-container {
        max-width: 100%;
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .compact-header {
        padding: var(--spacing-4) 0;
    }
    
    .filter-section {
        padding: var(--spacing-3) 0;
    }
    
    .main-content {
        padding: var(--spacing-6) 0;
    }
    
    .pagination-container {
        padding: var(--spacing-6) 0;
    }
    
    .page-title {
        font-size: var(--font-size-xl);
    }
    
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-4);
    }
    
    .filter-group {
        justify-content: flex-start;
        flex-wrap: wrap;
        padding: var(--spacing-3);
    }
    
    .search-container {
        min-width: auto;
    }
    
    .model-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .model-card {
        padding: var(--spacing-5);
    }
    
    .card-header {
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: flex-start;
    }
    
    .model-tags {
        align-self: stretch;
        justify-content: flex-start;
    }
    
    .search-input {
        padding: var(--spacing-3) var(--spacing-4) var(--spacing-3) var(--spacing-8);
    }
    
    .search-icon {
        left: var(--spacing-3);
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: var(--font-size-xl);
    }
    
    .filter-btn {
        font-size: var(--font-size-xs);
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .search-input {
        padding: var(--spacing-3) var(--spacing-4) var(--spacing-3) var(--spacing-8);
        font-size: var(--font-size-sm);
    }
    
    .search-icon {
        left: var(--spacing-2);
        width: 16px;
        height: 16px;
    }
    
    .model-name {
        font-size: var(--font-size-lg);
    }
    
    .pagination {
        gap: var(--spacing-1);
    }
    
    .pagination-btn {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-xs);
    }
}

/* Enhanced Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(300px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(300px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Enhanced Model Card Interactions */
.model-card {
    cursor: pointer;
    outline: none;
    /* Ensure cards are clickable */
    pointer-events: auto;
    /* Make sure cards don't get covered by other elements */
    transform: translateZ(0);
}

/* 确保所有子元素都可以被点击 */
.model-card *,
.model-card *::before,
.model-card *::after {
    pointer-events: auto;
}

/* 强制移除任何可能的遮罩层 */
.model-card::before,
.model-card::after {
    display: none !important;
}

/* 移除可能阻止交互的CSS属性 */
.model-card,
.model-card * {
    -webkit-touch-callout: initial;
    -webkit-user-select: initial;
    -khtml-user-select: initial;
    -moz-user-select: initial;
    -ms-user-select: initial;
    user-select: initial;
}

/* 确保所有内容都在正确的堆叠上下文中 */
.model-card .card-header,
.model-card .card-content,
.model-card .model-info,
.model-card .model-text,
.model-card .model-icon,
.model-card .model-tags,
.model-card .tag,
.model-card .model-name,
.model-card .model-description,
.model-card .model-detail {
    position: relative;
    z-index: 1;
    pointer-events: auto;
    /* 确保没有transform造成的点击问题 */
    backface-visibility: visible;
}

.model-card:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light), var(--shadow-lg);
}

.model-card:active {
    transform: translateY(-2px) scale(0.98);
}

/* 加载状态 */
.loading .model-card {
    /* 移除loading时的灰蒙蒙效果，保持卡片正常显示 */
    opacity: 1;
    transform: none;
}

.skeleton-card {
    background: linear-gradient(90deg, var(--color-border-light) 25%, var(--color-surface-hover) 50%, var(--color-border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-2xl);
    height: 250px;
}

/* Filter Button Enhanced States */
.filter-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.filter-btn:active {
    transform: translateY(0) scale(0.95);
}

/* Search Input Enhanced States */
.search-input:focus + .search-icon {
    transform: translateY(-50%) scale(1.1);
    color: var(--color-primary);
}

/* Pagination Enhanced States */
.pagination-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* Tag Hover Effects */
.tag {
    transition: all var(--transition-fast);
}

.tag:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

/* Model Icon Enhanced Animation */
.model-icon svg {
    transition: all var(--transition-fast);
}

.model-card:hover .model-icon svg {
    filter: drop-shadow(0 2px 4px rgba(16, 185, 129, 0.3));
}

/* Logo image styles */
.model-icon img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    object-fit: cover;
    transition: all var(--transition-fast);
}

.model-card:hover .model-icon img {
    filter: drop-shadow(0 2px 4px rgba(16, 185, 129, 0.3));
    transform: scale(1.05);
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .model-card:hover {
        transform: none;
    }
    
    .pagination-btn:hover:not(:disabled) {
        transform: none;
    }
    
    .filter-btn:hover {
        transform: none;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --color-border-light: #333333;
        --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.5);
        --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.5);
        --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.5);
    }
    
    .model-card {
        border-width: 2px;
    }
    
    .filter-btn {
        border-width: 2px;
    }
}

/* Dark mode support (enhanced) */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #0F172A;
        --color-surface: #1E293B;
        --color-surface-hover: #334155;
        --color-surface-elevated: #475569;
        --color-border: #334155;
        --color-border-light: #475569;
        --color-text-primary: #F8FAFC;
        --color-text-secondary: #CBD5E1;
        --color-text-muted: #94A3B8;
        --color-text-placeholder: #64748B;
    }
    
    body {
        background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    }
    
    .header {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(51, 65, 85, 0.95) 100%);
        backdrop-filter: blur(12px);
    }
    
    .page-title {
        background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .pagination-container {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(51, 65, 85, 0.95) 100%);
    }
}

/* Loading and Error States */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
    grid-column: 1 / -1;
}

.loading-state .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
    grid-column: 1 / -1;
}

.retry-btn {
    margin-top: 16px;
    padding: 8px 16px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.retry-btn:hover {
    background: var(--color-primary-dark, #059669);
}

.pagination-info {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin: 0 16px;
}