/* ==========================================================================
   Base Styles & CSS Reset
   ========================================================================== */

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

/* ==========================================================================
   CSS Variables - Light Mode (Default)
   ========================================================================== */

:root {
    /* Colors - Light Mode */
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
    --color-border: #e0e0e0;
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-secondary: #ff6600;
    --color-code-bg: #f8f8f8;
    --color-footnote-bg: #fffbeb;
    --color-footnote-border: #fbbf24;

    /* Typography */
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

    /* Spacing */
    --container-max: 1200px;
    --article-max: 760px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography Scale */
    --text-xs: 0.875rem;
    --text-sm: 0.9375rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.65;
    --leading-loose: 1.75;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Layout */
    --header-height: 140px;
}

/* ==========================================================================
   Dark Mode Variables
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0a0a0a;
        --color-bg-alt: #1a1a1a;
        --color-text: #e0e0e0;
        --color-text-muted: #999999;
        --color-border: #2a2a2a;
        --color-primary: #33ccff;
        --color-primary-hover: #00b8ff;
        --color-secondary: #ff9933;
        --color-code-bg: #1a1a1a;
        --color-footnote-bg: #1a1506;
        --color-footnote-border: #cc8800;
    }
}

/* ==========================================================================
   Base Typography
   ========================================================================== */

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-padding-top: calc(var(--header-height) + var(--spacing-md));
    /* Fix for sticky header covering anchors */
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Font loading optimization */
/* @font-face rules for custom fonts would go here if needed */

/* Mobile optimization: 15-17px */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.site-main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    background-color: var(--color-bg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    /* Prevent layout shift */
    min-height: var(--header-height);
    contain: layout;
}

@media (prefers-color-scheme: dark) {
    .site-header {
        background-color: rgba(10, 10, 10, 0.95);
    }
}

.site-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.site-title a {
    color: var(--color-text);
    text-decoration: none;
}

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

.site-nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color 0.2s;
    padding: var(--spacing-xs) 0;
}

.site-nav a:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    background-color: var(--color-bg-alt);
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.site-footer p {
    margin: var(--spacing-xs) 0;
}

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

.site-footer a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Article/Post Layout
   ========================================================================== */

.post {
    max-width: var(--article-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.post-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.post-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.original-link {
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.original-link:hover {
    text-decoration: underline;
}



/* ==========================================================================
   Article Content Typography
   ========================================================================== */

.post-content {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

/* Hidden title footnotes - ensure they're completely invisible */
.hidden-title-footnotes {
    position: absolute !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.post-content>*+* {
    margin-top: var(--spacing-md);
}

.post-content h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    line-height: var(--leading-tight);
}

.post-content h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.post-content h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.post-content p {
    margin: var(--spacing-md) 0;
}

.post-content a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.post-content a:hover {
    border-bottom-color: var(--color-primary);
}

.post-content strong {
    font-weight: 600;
    color: var(--color-text);
}

.post-content em {
    font-style: italic;
}

.post-content ul,
.post-content ol {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-lg);
}

.post-content li {
    margin: var(--spacing-sm) 0;
}

.post-content blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-bg-alt);
    font-style: italic;
    color: var(--color-text-muted);
}

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 2px 6px;
    background-color: var(--color-code-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.post-content pre {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: var(--color-code-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.post-content pre code {
    padding: 0;
    background: none;
    border: none;
}

.post-content img,
.post-content-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: var(--spacing-lg) 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: block;
    /* Prevent layout shift */
    aspect-ratio: attr(width) / attr(height);
    background-color: var(--color-bg-alt);
}

@media (prefers-color-scheme: dark) {

    .post-content img,
    .post-content-body img {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    }
}

.post-content hr {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: var(--spacing-xl) 0;
}

/* ==========================================================================
   Footnotes
   ========================================================================== */

.footnotes {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    background-color: rgba(0, 0, 0, 0.02);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

@media (prefers-color-scheme: dark) {
    .footnotes {
        background-color: rgba(255, 255, 255, 0.03);
    }
}

.footnotes ol {
    padding-left: var(--spacing-lg);
}

.footnotes li {
    margin: var(--spacing-sm) 0;
    line-height: var(--leading-normal);
}

.footnotes hr {
    display: none;
}

/* Footnote reference in text */
a.footnote-ref {
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.75em;
    vertical-align: super;
    padding: 0 2px;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
}

a.footnote-ref:hover {
    color: var(--color-primary-hover);
}

/* Footnote popup tooltip */
.footnote-tooltip {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-bg);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    max-width: 320px;
    width: max-content;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    margin-bottom: 10px;
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--color-text);
    text-align: left;
    pointer-events: none;
}

@media (prefers-color-scheme: dark) {
    .footnote-tooltip {
        background-color: #151515;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }
}

/* Arrow for tooltip */
.footnote-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--color-primary) transparent transparent transparent;
}

a.footnote-ref:hover .footnote-tooltip {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, 5px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.footnote-backref {
    text-decoration: none;
    color: var(--color-text-muted);
    margin-left: 4px;
    font-family: var(--font-mono);
    font-size: 0.8em;
    border: none;
}

.footnote-backref:hover {
    color: var(--color-primary);
}

.footnote-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-footnote-border);
}

/* Mobile: click to show */
@media (max-width: 768px) {
    a.footnote-ref {
        padding: 4px 8px;
        margin: 0 2px;
        background-color: var(--color-bg-alt);
        border-radius: var(--radius-sm);
    }

    .footnote-tooltip {
        max-width: 280px;
        font-size: var(--text-sm);
    }
}

/* Desktop: hover to show */
@media (min-width: 769px) {
    a.footnote-ref:hover .footnote-tooltip {
        display: block;
    }
}

/* ==========================================================================
   Post Footer
   ========================================================================== */

.post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

.export-actions {
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: var(--text-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    box-shadow: none;
}

.export-hint {
    margin-top: var(--spacing-sm);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* ==========================================================================
   QR Codes
   ========================================================================== */

.qr-codes {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.qr-code-item {
    text-align: center;
}

/* QR Code Canvas Container */
.qr-code-canvas {
    display: inline-block;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    background-color: white;
    min-width: 120px;
    min-height: 120px;
}

/* Legacy support for static QR code images */
.qr-code-item img {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    background-color: white;
}

/* QR code generated images should have no margin/shadow */
.qr-code-canvas img {
    margin: 0 !important;
    box-shadow: none !important;
    display: inline-block !important;
}

.qr-code-item p {
    margin-top: var(--spacing-xs);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* QR code link (optional, hidden by default) */
.qr-link {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-decoration: none;
    word-break: break-all;
    max-width: 200px;
    margin-left: auto;
    margin-right: auto;
}

.qr-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* ==========================================================================
   Site Switcher Banner
   ========================================================================== */

.site-switch-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    z-index: 10000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

.site-switch-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.site-switch-message {
    font-size: 14px;
    font-weight: 500;
}

.site-switch-actions {
    display: flex;
    gap: 10px;
}

.site-switch-btn {
    padding: 6px 16px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.site-switch-btn--primary {
    background: white;
    color: #667eea;
}

.site-switch-btn--primary:hover {
    background: #f0f0f0;
    transform: translateY(-1px);
}

.site-switch-btn--secondary {
    background: transparent;
    color: white;
    border: 1px solid white;
}

.site-switch-btn--secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 640px) {
    .site-switch-content {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .site-switch-actions {
        width: 100%;
        justify-content: center;
    }
}

/* Dark mode support for site switcher */
@media (prefers-color-scheme: dark) {
    .site-switch-banner {
        background: linear-gradient(135deg, #4c5fd5 0%, #5a3a7a 100%);
    }
}

/* ==========================================================================
   Post Navigation
   ========================================================================== */

.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.nav-previous,
.nav-next {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.2s;
    font-size: var(--text-sm);
}

.nav-previous:hover,
.nav-next:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

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

@media (max-width: 640px) {
    .post-navigation {
        grid-template-columns: 1fr;
    }

    .nav-next {
        text-align: left;
    }
}

/* ==========================================================================
   Home Page
   ========================================================================== */

.hero {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
}

.hero h2 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.hero p {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
}

.recent-posts {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.recent-posts h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.post-card {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.post-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.post-card h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.post-card h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.post-card h3 a:hover {
    color: var(--color-primary);
}

.post-card time {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.post-card .excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: var(--leading-normal);
    margin: var(--spacing-sm) 0;
}

.view-all-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.2s;
}

.view-all-link:hover {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Archive Page
   ========================================================================== */

.archive {
    max-width: var(--article-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.archive h1 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
}

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

.post-item {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.post-item:last-child {
    border-bottom: none;
}

.post-item time {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.post-item h2 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.post-item h2 a {
    color: var(--color-text);
    text-decoration: none;
}

.post-item h2 a:hover {
    color: var(--color-primary);
}

.post-item .excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: var(--leading-normal);
}

/* ==========================================================================
   Post Layout with TOC
   ========================================================================== */

.post-container {
    display: flex;
    gap: var(--spacing-lg);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.post-sidebar {
    width: 280px;
    flex-shrink: 0;
}

.toc-container {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-md));
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    /* Prevent layout shift */
    min-height: 200px;
    contain: layout;
}

.toc-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    border-left: 3px solid var(--color-primary);
    position: relative;
}

#toc ul {
    list-style: none;
    padding-left: 0;
}

#toc li {
    margin-bottom: var(--spacing-xs);
}

#toc a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all 0.2s ease;
    display: block;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

#toc a:hover {
    color: var(--color-text);
    background-color: var(--color-border);
}

#toc a.active {
    color: var(--color-primary);
    font-weight: 600;
    background-color: rgba(51, 204, 255, 0.1);
}

@media (prefers-color-scheme: dark) {
    #toc a.active {
        background-color: rgba(51, 204, 255, 0.15);
    }
}

#toc a.toc-level-h3 {
    padding-left: var(--spacing-md);
}

.post {
    flex-grow: 1;
    min-width: 0;
    /* Prevents flex item from overflowing */
}

.back-to-home {
    display: inline-block;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
}

.back-to-home:hover {
    color: var(--color-primary);
}

.post-content-body {
    line-height: var(--leading-relaxed);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .post-sidebar {
        display: none;
    }
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

@media (max-width: 768px) {
    .post-title {
        font-size: var(--text-2xl);
    }

    .posts-grid {
        grid-template-columns: 1fr;
    }

    .hero h2 {
        font-size: var(--text-2xl);
    }
}

/* ==========================================================================
   News Archive Layout (New Eden News)
   ========================================================================== */

.news-archive {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-lg);
    color: var(--color-text);
}

.news-header {
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-lg);
}

.news-header h1 {
    font-size: var(--text-3xl);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.news-header p {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 800px;
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background-color 0.2s;
}

.news-item:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.news-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: 0;
    line-height: 1.3;
}

.news-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s;
}

.news-title a:hover {
    color: var(--color-primary);
}

.news-meta {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.news-author {
    margin-left: var(--spacing-sm);
    color: var(--color-text-muted);
}

.news-excerpt {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text-muted);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .news-item {
        padding: var(--spacing-md) 0;
    }
}

/* Date Tooltip */
.date-tooltip {
    position: relative;
    cursor: default;
    border-bottom: 1px dotted var(--color-text-muted);
}

.date-tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    margin-bottom: 6px;
    z-index: 100;
    pointer-events: none;
}

@media (prefers-color-scheme: dark) {
    .date-tooltip:hover::after {
        background-color: #151515;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }
}

/* ==========================================================================
   Translation Credits & DeepL Logo
   ========================================================================== */

.translation-credit {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.deepl-logo {
    height: 1.5em;
    width: auto;
    vertical-align: middle;
    display: inline-block;
}

.rabbitp-avatar {
    height: 2.5em;
    width: 2.5em;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    margin-left: calc(var(--spacing-sm) / 2);
    margin-right: calc(var(--spacing-sm) / 2);
}

.translation-credit p {
    display: inline;
    margin: 0;
}

.translation-credit a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.translation-credit a:hover {
    text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
    .translation-credit {
        background-color: var(--color-bg-alt);
        border-left-color: var(--color-primary);
    }
}

/* ==========================================================================
   Social Media Links & Copyright
   ========================================================================== */

.social-links {
    margin: var(--spacing-md) 0;
}

.social-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.social-links li {
    margin: 0;
}

.social-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--text-sm);
}

.social-links a:hover {
    text-decoration: underline;
}

.copyright-notice {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Category Navigation & Social Media Layout
   ========================================================================== */

.news-category-nav {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.news-category-nav .nav-item {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.news-category-nav .nav-item:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-alt);
}

.news-category-nav .nav-item.active {
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    margin-bottom: -3px;
    /* Overlap border */
    background-color: transparent;
}

/* Wide Post Layout (Social Media) */
.post-container--wide {
    display: block;
    /* Remove grid */
    max-width: 900px;
    margin: 0 auto;
}

.post-container--wide .post-header,
.post-container--wide .post-content,
.post-container--wide .post-footer {
    max-width: 100%;
}

/* Social Media Buttons in Meta */
.original-link-container {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.original-link-label {
    font-size: var(--text-sm);
    color: var(--color-text);
    margin-right: 4px;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    /* Minimum logo size for digital */
    min-height: 16px;
    width: 24px;
    height: 24px;
    padding: 4px;
    /* 1/4 X clear space */
    border-radius: 4px;
    transition: opacity 0.2s;
}

.social-btn:hover {
    opacity: 0.8;
}

.social-btn img,
.social-btn picture {
    width: 100%;
    height: 100%;
    display: block;
}

.social-btn img {
    object-fit: contain;
    /* Prevent layout shift */
    width: 16px;
    height: 16px;
}

/* EVE Online button specific styles */
.eve-btn {
    width: 40px;
    height: 32px;
}

.eve-btn img {
    /* EVE logo is larger for better visibility */
    width: 32px;
    height: 26px;
}