/* ===== CSS Variables ===== */
:root {
    /* Red Color Scheme */
    --color-primary: #8B0000;
    --color-primary-dark: #5C0000;
    --color-primary-light: #DC143C;
    --color-accent: #FF0000;
    --color-accent-light: #FF6B6B;
    --color-gold: #FFD700;
    --color-gold-dark: #B8860B;
    
    /* Background Colors */
    --bg-body: #F8F9FA;
    --bg-content: #FFFFFF;
    --bg-sidebar: #F8F9FA;
    --bg-header: #FFFFFF;
    --bg-footer: #8B0000;
    
    /* Text Colors */
    --text-primary: #202122;
    --text-secondary: #54595D;
    --text-link: #8B0000;
    --text-link-hover: #DC143C;
    --text-light: #FFFFFF;
    --text-muted: #72777D;
    
    /* Border Colors */
    --border-light: #A2A9B1;
    --border-lighter: #C8CCD1;
    --border-red: #DC143C;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Typography */
    --font-serif: 'Linux Libertine', 'Georgia', 'Times New Roman', serif;
    --font-sans: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Layout */
    --sidebar-width: 220px;
    --max-content-width: 960px;
    --header-height: 50px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
}

a {
    color: var(--text-link);
    text-decoration: none;
}

a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* ===== Top Navigation Bar ===== */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(139, 0, 0, 0.3);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--color-gold);
    border-radius: 1px;
    transition: all 0.3s;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-gold);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.top-bar-center {
    flex: 1;
    max-width: 500px;
    margin: 0 var(--spacing-lg);
}

.search-box {
    display: flex;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 2px;
    overflow: hidden;
    border: 2px solid var(--color-gold);
    transition: box-shadow 0.2s;
}

.search-box:focus-within {
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.3);
}

.search-input {
    flex: 1;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    outline: none;
    background: transparent;
}

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

.search-btn {
    background-color: var(--color-gold);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    color: var(--color-primary);
    transition: background-color 0.2s;
}

.search-btn:hover {
    background-color: var(--color-gold-dark);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 600;
}

.nav-link:hover {
    color: var(--color-gold);
    text-decoration: none;
}

.x-link {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    transition: background 0.2s;
}

.x-link:hover {
    background: rgba(255, 255, 255, 0.2);
}

.more-options {
    display: flex;
    flex-direction: column;
    gap: 3px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.more-options span {
    display: block;
    width: 4px;
    height: 4px;
    background-color: var(--color-gold);
    border-radius: 50%;
}

/* ===== Page Container ===== */
.page-container {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-lighter);
    padding: var(--spacing-md);
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-heading {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-lighter);
    padding-bottom: var(--spacing-xs);
}

.nav-item {
    font-size: 0.85rem;
    color: var(--text-link);
    padding: 2px 0;
    display: block;
}

.nav-item:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

.nav-item.active {
    color: var(--color-primary);
    font-weight: 600;
}

.donate-link {
    color: var(--color-primary-light);
    font-weight: 600;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    background-color: var(--bg-content);
    min-height: calc(100vh - var(--header-height));
}

/* ===== Article Header ===== */
.article-header {
    background: linear-gradient(to right, #FFF5F5, #FFFFFF);
    border-bottom: 1px solid var(--border-lighter);
    padding: var(--spacing-sm) var(--spacing-lg);
    position: relative;
}

.article-tabs {
    display: flex;
    gap: var(--spacing-xs);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-link);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
}

.tab:hover {
    text-decoration: none;
    background-color: rgba(139, 0, 0, 0.05);
}

.tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

.tools-dropdown {
    position: absolute;
    top: 100%;
    right: var(--spacing-lg);
    background: white;
    border: 1px solid var(--border-lighter);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    padding: var(--spacing-sm) 0;
    min-width: 180px;
    display: none;
    z-index: 100;
}

.tools-dropdown.active {
    display: block;
}

.tools-dropdown a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.tools-dropdown a:hover {
    background-color: #FFF5F5;
    text-decoration: none;
}

/* ===== Welcome Banner ===== */
.welcome-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, #4A0000 100%);
    color: var(--text-light);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    border-bottom: 4px solid var(--color-gold);
}

.welcome-banner h1 {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.welcome-banner .highlight {
    color: var(--color-gold);
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
}

.stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-md);
}

.stat {
    font-size: 0.9rem;
}

.stat strong {
    color: var(--color-gold);
    font-size: 1.2rem;
}

/* ===== Tab Content ===== */
.tab-content {
    display: none;
}

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

/* ===== Talk Section ===== */
.talk-section {
    padding: var(--spacing-lg);
    max-width: var(--max-content-width);
}

.talk-section h2 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
}

.talk-notice {
    background: #FFF5F5;
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.talk-topics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.talk-topic {
    background: white;
    border: 1px solid var(--border-lighter);
    border-radius: 4px;
    padding: var(--spacing-md);
}

.topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.topic-header h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
}

.topic-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.topic-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-top: var(--spacing-sm);
}

.topic-actions button {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.85rem;
}

.topic-actions button:hover {
    background: var(--color-primary-dark);
}

.replies-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.new-topic-btn {
    background: var(--color-gold);
    color: var(--color-primary-dark);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    margin-top: var(--spacing-lg);
}

.new-topic-btn:hover {
    background: var(--color-gold-dark);
}

/* ===== Article ===== */
.article {
    padding: var(--spacing-lg);
    max-width: var(--max-content-width);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-lighter);
    padding-bottom: var(--spacing-sm);
}

.article-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.article-intro {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.article-intro strong {
    color: var(--color-primary);
}

/* ===== Quick Navigation ===== */
.quick-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.quick-nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, #FFF5F5, #FFFFFF);
    border: 1px solid var(--border-red);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-primary);
    transition: all 0.2s;
}

.quick-nav-btn:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(139, 0, 0, 0.2);
}

.quick-nav-btn svg {
    width: 18px;
    height: 18px;
}

/* ===== Info Box ===== */
.infobox {
    float: right;
    width: 280px;
    margin: 0 0 var(--spacing-md) var(--spacing-md);
    background: linear-gradient(180deg, #FFF5F5 0%, #FFFFFF 100%);
    border: 2px solid var(--color-primary);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(139, 0, 0, 0.15);
}

.infobox-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-gold);
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: center;
}

.infobox-header h3 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
}

.infobox-image {
    padding: var(--spacing-md);
    text-align: center;
    background-color: #FFF;
}

.bot-illustration {
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
}

.bot-illustration svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.image-caption {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

.infobox-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.infobox-table th,
.infobox-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-lighter);
}

.infobox-table th {
    width: 40%;
    color: var(--text-secondary);
    font-weight: 600;
}

.infobox-table td {
    color: var(--text-primary);
}

.infobox-table tr:last-child th,
.infobox-table tr:last-child td {
    border-bottom: none;
}

/* ===== Table of Contents ===== */
.article-toc {
    background-color: #FFF5F5;
    border: 1px solid var(--border-red);
    border-radius: 4px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
}

.toc-header {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toc-toggle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
    cursor: pointer;
}

.toc-list {
    list-style: none;
    counter-reset: item;
}

.toc-list li {
    margin: var(--spacing-xs) 0;
}

.toc-list li::before {
    counter-increment: item;
    content: counters(item, ".") " ";
    color: var(--color-primary);
    font-weight: 600;
}

.toc-list ol {
    list-style: none;
    margin-left: var(--spacing-md);
    counter-reset: subitem;
}

.toc-list ol li::before {
    counter-increment: subitem;
    content: counters(item, ".") "." counters(subitem, ".") " ";
}

.toc-list a {
    color: var(--text-link);
}

.toc-list a:hover {
    text-decoration: underline;
}

/* ===== Article Content ===== */
.article h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-lighter);
    padding-bottom: var(--spacing-xs);
}

.article h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.article p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.article ul {
    margin-bottom: var(--spacing-md);
    margin-left: var(--spacing-lg);
}

.article ul li {
    margin: var(--spacing-xs) 0;
    line-height: 1.6;
}

.article ul li strong {
    color: var(--color-primary);
}

/* ===== Timeline Section ===== */
.timeline-section {
    margin: var(--spacing-lg) 0;
}

.timeline-section h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-gold));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateX(-20px);
    animation: slideIn 0.5s forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 4px;
    width: 12px;
    height: 12px;
    background: var(--color-gold);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
}

.timeline-date {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.9rem;
}

.timeline-content {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Variants Grid ===== */
.variants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.variant-card {
    background: linear-gradient(180deg, #FFF5F5 0%, #FFFFFF 100%);
    border: 1px solid var(--border-lighter);
    border-radius: 8px;
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.variant-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.variant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(139, 0, 0, 0.15);
    border-color: var(--color-primary);
}

.variant-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.variant-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.variant-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.variant-link {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ===== Applications List ===== */
.applications-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.app-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: white;
    border: 1px solid var(--border-lighter);
    border-radius: 8px;
    padding: var(--spacing-md);
    transition: all 0.3s;
    opacity: 0;
    transform: translateX(-20px);
}

.app-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.app-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(139, 0, 0, 0.1);
}

.app-icon {
    font-size: 2rem;
}

.app-info {
    display: flex;
    flex-direction: column;
}

.app-info strong {
    color: var(--color-primary);
}

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

/* ===== Gallery Section ===== */
.gallery-section {
    margin: var(--spacing-lg) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    cursor: pointer;
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-placeholder {
    aspect-ratio: 1;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: var(--spacing-xs);
}

.gallery-placeholder span {
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.2));
}

.gallery-item p {
    font-size: 0.8rem;
    text-align: center;
    color: var(--text-secondary);
}

.red-gradient { background: linear-gradient(135deg, #DC143C, #8B0000); }
.blue-gradient { background: linear-gradient(135deg, #4169E1, #00008B); }
.green-gradient { background: linear-gradient(135deg, #32CD32, #006400); }
.purple-gradient { background: linear-gradient(135deg, #9370DB, #4B0082); }
.orange-gradient { background: linear-gradient(135deg, #FF8C00, #FF4500); }
.teal-gradient { background: linear-gradient(135deg, #20B2AA, #008080); }

/* ===== Lightbox ===== */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 80%;
    max-height: 80%;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 2rem;
    padding: var(--spacing-md);
    cursor: pointer;
    border-radius: 4px;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.4);
}

.lightbox-prev { left: -60px; }
.lightbox-next { right: -60px; }

.gallery-placeholder-large {
    width: 400px;
    height: 400px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
}

.lightbox-caption {
    color: white;
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 1.1rem;
}

/* ===== Specifications Section ===== */
.specs-section {
    margin: var(--spacing-lg) 0;
}

.specs-table-wrapper {
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.specs-table th,
.specs-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border: 1px solid var(--border-lighter);
}

.specs-table th {
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-gold);
    font-weight: 600;
}

.specs-table tr:nth-child(even) {
    background-color: #FFF5F5;
}

.specs-table tr:hover {
    background-color: #FFEBEE;
}

/* ===== Versions Section ===== */
.versions-section {
    margin: var(--spacing-lg) 0;
}

.version-item {
    display: flex;
    gap: var(--spacing-md);
    background: white;
    border: 1px solid var(--border-lighter);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.version-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.version-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(139, 0, 0, 0.1);
}

.version-badge {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    height: fit-content;
}

.version-info h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.version-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.version-info ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

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

/* ===== Community Stats ===== */
.community-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #FFF5F5, #FFFFFF);
    border-radius: 8px;
    border: 1px solid var(--border-lighter);
}

.community-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== References ===== */
.references {
    list-style: decimal;
    margin-left: var(--spacing-lg);
    font-size: 0.9rem;
}

.references li {
    margin: var(--spacing-sm) 0;
    line-height: 1.5;
}

.external-links {
    list-style: disc;
    margin-left: var(--spacing-lg);
}

.external-links li {
    margin: var(--spacing-xs) 0;
}

/* ===== Categories ===== */
.categories {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-lighter);
    margin-top: var(--spacing-xl);
    background-color: #FFF5F5;
}

.cat-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.cat-link {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--text-light);
    padding: 2px 10px;
    border-radius: 2px;
    font-size: 0.85rem;
    margin: 2px;
    cursor: pointer;
}

.cat-link:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-gold);
    text-decoration: none;
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--text-light);
    padding: var(--spacing-lg);
    margin-left: var(--sidebar-width);
    border-top: 4px solid var(--color-gold);
}

.footer-content {
    max-width: var(--max-content-width);
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.footer-left {
    flex: 2;
}

.footer-left p {
    font-size: 0.8rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.footer-left a {
    color: var(--color-gold);
}

.footer-left a:hover {
    color: var(--text-light);
}

.footer-right {
    flex: 1;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-md);
}

.footer-nav a {
    color: var(--text-light);
    font-size: 0.8rem;
    opacity: 0.9;
    cursor: pointer;
}

.footer-nav a:hover {
    color: var(--color-gold);
    opacity: 1;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 1600;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-gold);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-gold);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-content {
    padding: var(--spacing-lg);
}

/* Modal Forms */
.modal-form .form-group {
    margin-bottom: var(--spacing-md);
}

.modal-form label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.modal-form input,
.modal-form select,
.modal-form textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-lighter);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.9rem;
}

.modal-form input:focus,
.modal-form select:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 0, 0, 0.3);
}

.form-link {
    margin-top: var(--spacing-md);
    text-align: center;
}

/* Donate Modal */
.donate-options {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.donate-btn {
    background: var(--color-gold);
    color: var(--color-primary-dark);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 4px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.donate-btn:hover {
    background: var(--color-gold-dark);
    transform: scale(1.05);
}

.donate-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}

/* Variant Detail Modal */
.variant-detail {
    text-align: center;
}

.variant-hero {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.variant-detail h4 {
    color: var(--color-primary);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.variant-detail ul {
    text-align: left;
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.variant-detail li {
    margin: var(--spacing-xs) 0;
}

/* Edit Notice */
.edit-notice {
    text-align: center;
    padding: var(--spacing-lg);
}

.edit-notice p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Policy Content */
.policy-content h4,
.help-content h4 {
    color: var(--color-primary);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.policy-content ul,
.help-content ul {
    margin-left: var(--spacing-lg);
}

.policy-content li,
.help-content li {
    margin: var(--spacing-xs) 0;
}

.help-content a {
    color: var(--color-primary);
}

/* Stats Content */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-box {
    background: linear-gradient(135deg, #FFF5F5, #FFFFFF);
    border: 1px solid var(--border-lighter);
    border-radius: 8px;
    padding: var(--spacing-md);
    text-align: center;
}

.stat-number-large {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.activity-list {
    list-style: none;
    margin: 0;
}

.activity-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-lighter);
}

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 3000;
    opacity: 0;
    transition: all 0.3s;
}

.toast.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ===== Animation Classes ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 900;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content,
    .footer {
        margin-left: 0;
    }
    
    .infobox {
        float: none;
        width: 100%;
        margin: 0 0 var(--spacing-md) 0;
    }
}

@media (max-width: 768px) {
    .top-bar-center {
        display: none;
    }
    
    .stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .article-tabs {
        flex-wrap: wrap;
    }
    
    .variants-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .specs-table {
        font-size: 0.8rem;
    }
    
    .lightbox-content {
        max-width: 95%;
    }
    
    .gallery-placeholder-large {
        width: 280px;
        height: 280px;
    }
    
    .lightbox-nav {
        font-size: 1.5rem;
        padding: var(--spacing-sm);
    }
    
    .lightbox-prev { left: -40px; }
    .lightbox-next { right: -40px; }
}

@media (max-width: 480px) {
    .welcome-banner h1 {
        font-size: 1.6rem;
    }
    
    .article-title {
        font-size: 1.4rem;
    }
    
    .quick-nav {
        flex-direction: column;
    }
    
    .quick-nav-btn {
        width: 100%;
        justify-content: center;
    }
    
    .community-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-sidebar);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}

/* ===== Selection Styling ===== */
::selection {
    background-color: var(--color-primary-light);
    color: var(--text-light);
}