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

:root {
    /* svgia.com 绿色主题色彩 */
    --primary-color: #10b981;      /* 主色调 - svgia绿色 */
    --primary-dark: #059669;       /* 深绿色 */
    --primary-light: #6ee7b7;      /* 浅绿色 */
    --secondary-color: #64748b;    /* 次要色 - 灰蓝 */
    --background: #ffffff;         /* 背景色 - 白色 */
    --surface: #f8fafc;           /* 表面色 - 浅灰 */
    --text-primary: #1e293b;      /* 主要文字 */
    --text-secondary: #64748b;    /* 次要文字 */
    --border: #e2e8f0;           /* 边框色 */
    --success: #10b981;           /* 成功色 */
    --hover: #f0fdf4;             /* 悬停背景 */
    --error: #ef4444;             /* 错误色 */
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
    transition: transform 0.2s ease;
}

.logo:hover {
    transform: scale(1.02);
}

.logo-main {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.logo-text {
    color: var(--primary-color);
}

.logo-domain {
    color: var(--text-secondary);
    font-weight: 600;
    margin-left: 1px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 2px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.mobile-menu-toggle:hover {
    background: var(--surface);
}

.hamburger {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    margin: 2px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

.mobile-menu-toggle.active .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a.active::after {
    width: 100%;
}

.nav-signup-btn {
    background: var(--primary-color) !important;
    color: white !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: 6px !important;
    font-weight: 600 !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2) !important;
}

.nav-signup-btn:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3) !important;
}

.nav-signup-btn::after {
    display: none !important;
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb .separator {
    margin: 0 0.5rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Editor Promotion */
.editor-promotion {
    margin: 1.5rem auto 2rem;
    max-width: 600px;
}

.editor-note {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    line-height: 1.4;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.editor-icon {
    font-size: 1.2rem;
    margin-right: 0.25rem;
}

.editor-note strong {
    font-weight: 600;
}

.editor-note a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
    font-weight: 500;
    transition: all 0.2s ease;
}

.editor-note a:hover {
    color: white;
    text-decoration-thickness: 2px;
}

.editor-promotion-small {
    margin: 1rem 0;
    max-width: 100%;
}

.editor-promotion-small .editor-note {
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    box-shadow: 0 3px 8px rgba(99, 102, 241, 0.25);
}

/* Search Form */
.search-form {
    max-width: 600px;
    margin: 1rem auto 2rem;
}

.search-container {
    position: relative;
    display: flex;
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: border-color 0.2s;
}

.search-container:focus-within {
    border-color: var(--primary-color);
}

.search-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    font-size: 1rem;
    outline: none;
    background: transparent;
}

.search-button {
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
}

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

/* 热门关键词区域样式 */
.popular-keywords {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius-lg);
}

.popular-keywords h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.keyword-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.keyword-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.keyword-tag:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--background);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.2);
}

.keyword-tag.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--background);
}

.keyword-tag .count {
    margin-left: 0.25rem;
    opacity: 0.7;
}

/* Quick Keywords (Search page) */
.quick-keywords {
    margin: 1.5rem 0 2rem 0;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius-lg);
}

.quick-keywords h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

/* Collections Page Styles */
.collections-header {
    text-align: center;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.collections-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.collections-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.collection-stats {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.all-collections {
    margin: 3rem 0;
}

.all-collections h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.all-collections > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.collection-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    margin-bottom: 1rem;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.collection-icon {
    color: var(--primary-color);
}

.collection-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.collection-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Collection Styles */
.collections-section {
    margin: 3rem 0;
}

.collections-section h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.collection-card {
    display: block;
    padding: 1.5rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.collection-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.collection-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.collection-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Icon Grid */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.icon-item {
    position: relative;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    min-height: 160px;
}

.icon-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.icon-link {
    display: flex;
    flex-direction: column;
    flex: 1;
    text-decoration: none;
    color: inherit;
}

.icon-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 90px;
    margin-bottom: 1rem;
}

.icon-preview svg,
.icon-svg {
    max-width: 64px;
    max-height: 64px;
    color: var(--text-primary);
    object-fit: contain;
}

.icon-preview-large .icon-svg {
    max-width: 180px;
    max-height: 180px;
}

.size-preview .icon-svg {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.icon-info {
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.icon-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.icon-keywords,
.icon-collection {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.3;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.icon-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.icon-item:hover .icon-actions {
    opacity: 1;
}

.download-btn,
.copy-btn {
    padding: 0.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
    margin-top: 0.5rem;
    align-self: stretch;
}

.download-btn:hover,
.copy-btn:hover {
    background: var(--primary-dark);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.page-link {
    padding: 0.5rem 0.75rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s;
    min-width: 2.5rem;
    text-align: center;
}

.page-link.page-nav {
    min-width: 80px;
    padding: 0.5rem 1rem;
}

.page-link:hover:not(.disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.page-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--surface);
    color: var(--text-secondary);
}

.page-ellipsis {
    padding: 0.5rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--background);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* Icon Detail Page */
.icon-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.icon-preview-large {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 250px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.icon-preview-large svg {
    max-width: 200px;
    max-height: 200px;
    color: var(--text-primary);
}

.size-previews h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.size-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.size-item {
    text-align: center;
    padding: 1rem;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.size-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.size-16 { width: 16px; height: 16px; }
.size-24 { width: 24px; height: 24px; }
.size-32 { width: 32px; height: 32px; }
.size-48 { width: 48px; height: 48px; }

.icon-meta {
    margin: 2rem 0;
}

.meta-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.download-actions {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

/* Code Display */
.code-container {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin: 1rem 0;
    max-width: 100%;
    overflow: hidden;
}

.code-container pre {
    margin: 0;
    max-width: 100%;
    overflow-x: auto;
    overflow-wrap: break-word;
    word-break: break-all;
    white-space: pre-wrap;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* SVG Code Section Specific Styles */
.svg-code-section {
    margin-top: 2rem;
}

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

.svg-code-header h3 {
    margin: 0;
}

.svg-code-section .code-container {
    max-height: 300px;
    overflow-y: auto;
}

.svg-code-section .code-container pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    hyphens: auto;
}

.copy-code-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.copy-code-btn:hover {
    background: var(--primary-dark);
}

.copy-code-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-code-btn-outline:hover {
    background: var(--surface);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Usage Examples Tabs */
.usage-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tab-btn {
    padding: 0.5rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Toast Messages */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.no-results-icon {
    margin-bottom: 1rem;
}

.no-results h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Results Info */
.results-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Collection Layout */
.collection-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.collections-sidebar {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    height: fit-content;
}

.collections-sidebar h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.collection-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.collection-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: background-color 0.2s;
}

.collection-link:hover,
.collection-link.active {
    background: var(--primary-color);
    color: white;
}

.icon-count {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        padding: 1rem;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 99;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        padding: 1rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .nav-signup-btn {
        margin: 1rem 0 0 0 !important;
        border-radius: 8px !important;
    }
    
    .logo-main {
        font-size: 1.25rem;
    }
    
    .logo-subtitle {
        font-size: 0.65rem;
        margin-top: 1px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .editor-note {
        flex-direction: column;
        text-align: center;
        gap: 0.25rem;
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }
    
    .editor-icon {
        margin-right: 0;
    }
    
    .editor-promotion-small .editor-note {
        font-size: 0.85rem;
        padding: 0.625rem 0.75rem;
    }
    
    .keyword-tags {
        gap: 0.5rem;
    }
    
    .keyword-tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .icon-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .collection-grid {
        grid-template-columns: 1fr;
    }
    
    .icon-detail-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .collection-layout {
        grid-template-columns: 1fr;
    }
    
    .download-actions {
        flex-direction: column;
    }
    
    .results-info {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .collections-header h1 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .hero {
        padding: 2rem 1rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .search-container {
        flex-direction: column;
    }
    
    .collections-header h1 {
        font-size: 1.75rem;
    }
    
    .collection-stats {
        padding: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .search-button {
        justify-content: center;
    }
    
    .icon-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}