/**
 * Wisemoni Frontend Styles
 * 前台专用样式
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-primary: #fafbfc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f3f5;
    --bg-dark: #0d1117;
    --bg-dark-secondary: #161b22;
    
    --text-primary: #1a1d21;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-muted: #a0aec0;
    --text-inverse: #ffffff;
    
    --accent-primary: #2563eb;
    --accent-secondary: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    
    --max-width: 1280px;
    --nav-height: 64px;
    
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #0d1117;
        --bg-secondary: #161b22;
        --bg-tertiary: #21262d;
        --text-primary: #f0f6fc;
        --text-secondary: #c9d1d9;
        --text-tertiary: #8b949e;
        --text-muted: #6e7681;
        --border-light: #30363d;
        --border-medium: #21262d;
    }
}

html[data-theme="dark"] {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #c9d1d9;
    --text-tertiary: #8b949e;
    --text-muted: #6e7681;
    --border-light: #30363d;
    --border-medium: #21262d;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    height: var(--nav-height);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .navbar {
        background: rgba(13, 17, 23, 0.9);
    }
}

html[data-theme="dark"] .navbar {
    background: rgba(13, 17, 23, 0.9);
}

.navbar-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.navbar-brand .logo {
    width: 36px;
    height: 36px;
}

.navbar-brand .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.navbar-brand .brand-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.navbar-brand .brand-tagline {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.navbar-nav a {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-nav a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.navbar-nav a.active {
    color: var(--accent-primary);
    background: rgba(37, 99, 235, 0.08);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.navbar-search {
    position: relative;
}

.navbar-search input {
    width: 200px;
    padding: 8px 12px 8px 36px;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

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

.navbar-search input:focus {
    outline: none;
    width: 260px;
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.navbar-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.875rem;
    pointer-events: none;
}

.lang-switcher {
    display: flex;
    gap: 2px;
    padding: 3px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.lang-switcher a {
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-switcher a:hover {
    color: var(--text-secondary);
}

.lang-switcher a.active {
    color: white;
    background: var(--accent-primary);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
}

html[data-theme="dark"] .theme-icon-light,
.theme-icon-dark {
    display: none;
}

html[data-theme="dark"] .theme-icon-dark {
    display: block;
}

.btn-nav {
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-nav:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
    background: var(--bg-tertiary);
}

.btn-nav.primary {
    color: white;
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-nav.primary:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

.menu-toggle {
    display: none;
    padding: 8px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 24px;
}

.hero-section {
    margin-bottom: 48px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 20px;
}

.hero-main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.hero-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.hero-card.featured-large {
    aspect-ratio: 16/10;
}

.hero-card .card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-card .card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.hero-card .card-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: white;
    width: fit-content;
    margin-bottom: 12px;
}

.hero-card .card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.hero-card.featured-large .card-title {
    font-size: 2rem;
}

.hero-card .card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
}

.hero-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-card.featured-small {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.hero-card.featured-small .card-overlay {
    padding: 16px;
}

.hero-card.featured-small .card-title {
    font-size: 1rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-header .view-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-primary);
    transition: gap var(--transition-fast);
}

.section-header .view-all:hover {
    gap: 10px;
}

.wiki-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 56px;
}

.wiki-card {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.wiki-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.wiki-card:hover::before {
    opacity: 1;
}

.wiki-card .wiki-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.wiki-card .wiki-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.wiki-card .wiki-summary {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.wiki-card .wiki-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: auto;
}

.river-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.river-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.river-item:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.river-item .item-image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
}

.river-item .item-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
}

.river-item .item-category {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    width: fit-content;
}

.river-item .item-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.river-item .item-summary {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.river-item .item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.article-detail {
    max-width: 840px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.article-header {
    padding: 40px 40px 0;
}

.article-header .article-category {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.article-header .article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.article-cover {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    margin: 24px 0;
}

.article-body {
    padding: 0 40px 40px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 16px;
    letter-spacing: -0.02em;
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 12px;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body ul, .article-body ol {
    margin: 20px 0;
    padding-left: 24px;
}

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li {
    margin-bottom: 8px;
}

.article-body blockquote {
    border-left: 4px solid var(--accent-primary);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--bg-tertiary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-body code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.article-body pre {
    background: var(--bg-dark);
    color: #e5e7eb;
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: 24px 0;
}

.article-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.article-tags {
    padding: 20px 40px;
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.article-tags .tag {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.article-tags .tag:hover {
    background: var(--accent-primary);
    color: white;
}

.article-actions {
    padding: 20px 40px;
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 12px;
}

.btn-favorite {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-light);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-favorite:hover,
.btn-favorite.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(37, 99, 235, 0.05);
}

.btn-edit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    border: 1px solid var(--accent-primary);
    background: var(--accent-primary);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-edit:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-edit svg {
    flex-shrink: 0;
}

.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
    max-width: 840px;
    margin-left: auto;
    margin-right: auto;
}

.article-nav a {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.article-nav a:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.article-nav .nav-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

.article-nav .nav-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-nav .nav-next {
    text-align: right;
}

.article-nav .nav-placeholder {
    visibility: hidden;
}

.related-articles {
    margin-top: 48px;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    max-width: 840px;
    margin-left: auto;
    margin-right: auto;
}

.related-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.related-item:hover {
    background: var(--bg-primary);
    transform: translateX(4px);
}

.related-content h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .article-nav {
        grid-template-columns: 1fr;
    }
    
    .article-nav .nav-next {
        text-align: left;
    }
    
    .article-nav .nav-placeholder {
        display: none;
    }
    
    .related-articles {
        padding: 20px;
    }
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
    padding: 24px 0;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

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

.pagination-ellipsis {
    color: var(--text-muted);
    padding: 0 8px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group label .required {
    color: var(--accent-danger);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-secondary);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--border-medium);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-block {
    width: 100%;
}

.auth-container {
    max-width: 440px;
    margin: 80px auto;
    padding: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
}

.auth-container h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    text-align: center;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.auth-container .auth-subtitle {
    text-align: center;
    color: var(--text-tertiary);
    margin-bottom: 32px;
}

.auth-container .auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-container .auth-footer a {
    color: var(--accent-primary);
    font-weight: 500;
}

.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.search-container {
    max-width: 720px;
    margin: 48px auto;
}

.search-box {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
}

.search-box input {
    flex: 1;
    padding: 16px 24px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.search-results h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer {
    background: var(--bg-dark);
    color: var(--text-inverse);
    padding: 64px 24px 32px;
    margin-top: 80px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-brand .logo {
    width: 36px;
    height: 36px;
}

.footer-brand .brand-name {
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-desc {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    padding: 6px 0;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-sidebar {
        flex-direction: row;
    }
    
    .hero-card.featured-small {
        aspect-ratio: 16/9;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .navbar-nav.mobile-open {
        display: flex;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-lg);
    }
    
    .river-item {
        grid-template-columns: 1fr;
    }
    
    .river-item .item-image {
        aspect-ratio: 16/9;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .article-header,
    .article-body,
    .article-tags,
    .article-actions {
        padding-left: 24px;
        padding-right: 24px;
    }
    
    .article-header h1 {
        font-size: 1.75rem;
    }
}

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

.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

.wiki-card,
.river-item,
.hero-card {
    animation: fadeInUp 0.5s ease forwards;
}

.wiki-card:nth-child(1) { animation-delay: 0ms; }
.wiki-card:nth-child(2) { animation-delay: 50ms; }
.wiki-card:nth-child(3) { animation-delay: 100ms; }
.wiki-card:nth-child(4) { animation-delay: 150ms; }

.river-item:nth-child(1) { animation-delay: 0ms; }
.river-item:nth-child(2) { animation-delay: 50ms; }
.river-item:nth-child(3) { animation-delay: 100ms; }

svg.feather {
    width: 1em;
    height: 1em;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    vertical-align: middle;
}

.navbar-nav a svg.feather {
    width: 16px;
    height: 16px;
    margin-right: 6px;
}

.btn-nav svg.feather {
    width: 16px;
    height: 16px;
    margin-right: 6px;
}

.navbar-search .search-icon svg.feather {
    width: 16px;
    height: 16px;
}

.menu-toggle svg.feather {
    width: 24px;
    height: 24px;
}

.wiki-icon svg.feather {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
}

.footer-col a svg.feather {
    width: 14px;
    height: 14px;
    margin-right: 8px;
}

.section-header .view-all svg.feather {
    width: 16px;
    height: 16px;
}