/* ==========================================================================
   Tinkerer Theme - Dark-first Ghost Theme
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
    /* Dark theme (default) */
    --color-bg: #0d1117;
    --color-bg-elevated: #161b22;
    --color-bg-code: #1a1f29;
    --color-border: #30363d;
    --color-border-subtle: #21262d;
    --color-text: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-text-heading: #e6edf3;
    --color-link: var(--ghost-accent-color, #58a6ff);
    --color-link-hover: #79c0ff;
    --color-accent: var(--ghost-accent-color, #58a6ff);

    --font-heading: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --content-width: 720px;
    --wide-width: 1100px;
    --full-width: 1400px;
    --header-height: 64px;
    --gap: 24px;
    --radius: 8px;
    --radius-sm: 4px;
}

/* Light theme overrides */
html:not(.dark):not(.auto) {
    --color-bg: #ffffff;
    --color-bg-elevated: #f6f8fa;
    --color-bg-code: #f0f2f5;
    --color-border: #d0d7de;
    --color-border-subtle: #e1e4e8;
    --color-text: #1f2328;
    --color-text-secondary: #656d76;
    --color-text-heading: #1f2328;
    --color-link-hover: var(--ghost-accent-color, #0969da);
}

/* Auto: use system preference */
html.auto {
    --color-bg: #0d1117;
    --color-bg-elevated: #161b22;
    --color-bg-code: #1a1f29;
    --color-border: #30363d;
    --color-border-subtle: #21262d;
    --color-text: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-text-heading: #e6edf3;
    --color-link-hover: #79c0ff;
}

@media (prefers-color-scheme: light) {
    html.auto {
        --color-bg: #ffffff;
        --color-bg-elevated: #f6f8fa;
        --color-bg-code: #f0f2f5;
        --color-border: #d0d7de;
        --color-border-subtle: #e1e4e8;
        --color-text: #1f2328;
        --color-text-secondary: #656d76;
        --color-text-heading: #1f2328;
        --color-link-hover: var(--ghost-accent-color, #0969da);
    }
}

/* Manual toggle override via JS */
html.dark-override {
    --color-bg: #0d1117;
    --color-bg-elevated: #161b22;
    --color-bg-code: #1a1f29;
    --color-border: #30363d;
    --color-border-subtle: #21262d;
    --color-text: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-text-heading: #e6edf3;
    --color-link-hover: #79c0ff;
}

html.light-override {
    --color-bg: #ffffff;
    --color-bg-elevated: #f6f8fa;
    --color-bg-code: #f0f2f5;
    --color-border: #d0d7de;
    --color-border-subtle: #e1e4e8;
    --color-text: #1f2328;
    --color-text-secondary: #656d76;
    --color-text-heading: #1f2328;
    --color-link-hover: var(--ghost-accent-color, #0969da);
}

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

html {
    font-size: 62.5%;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1.7rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-heading);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5em;
}

h1 { font-size: 3.2rem; }
h2 { font-size: 2.6rem; }
h3 { font-size: 2.2rem; }
h4 { font-size: 1.9rem; }

p {
    margin: 0 0 1.5em;
}

/* ---------- Layout Utilities ---------- */
.container {
    max-width: var(--full-width);
    margin: 0 auto;
    padding: 0 var(--gap);
}

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

/* ---------- Site Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border-subtle);
    height: var(--header-height);
    backdrop-filter: blur(12px);
    background-color: color-mix(in srgb, var(--color-bg) 85%, transparent);
}

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

.site-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.site-logo {
    flex-shrink: 0;
}

.site-logo img {
    max-height: 36px;
    width: auto;
}

/* Logo swap: dark logo by default, light logo in light mode */
.site-logo .logo-light {
    display: none;
}

/* Light mode (no dark class, no override) */
html:not(.dark):not(.auto):not(.dark-override) .site-logo .logo-dark,
html.light-override .site-logo .logo-dark {
    display: none;
}

html:not(.dark):not(.auto):not(.dark-override) .site-logo .logo-light,
html.light-override .site-logo .logo-light {
    display: block;
}

/* Auto mode: swap on light system preference */
@media (prefers-color-scheme: light) {
    html.auto:not(.dark-override):not(.light-override) .site-logo .logo-dark {
        display: none;
    }
    html.auto:not(.dark-override):not(.light-override) .site-logo .logo-light {
        display: block;
    }
}

.site-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-heading);
    text-decoration: none;
}

.site-title:hover {
    color: var(--color-accent);
}

/* Navigation */
.site-nav {
    display: flex;
    align-items: center;
    gap: 0;
    min-width: 0;
}

.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2px;
}

.site-nav li a {
    display: block;
    padding: 6px 12px;
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
    white-space: nowrap;
}

.site-nav li a:hover {
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
}

/* Separator between manual nav and auto tags */
.nav-sep {
    display: none;
    width: 1px;
    height: 20px;
    background: var(--color-border);
    margin: 0 8px;
    flex-shrink: 0;
}

.nav-sep.visible {
    display: block;
}

/* Auto-populated tag links */
.nav-tags {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2px;
    overflow: hidden;
}

.nav-tags li a {
    display: block;
    padding: 6px 12px;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
    white-space: nowrap;
    opacity: 0.75;
}

.nav-tags li a::before {
    content: '#';
    color: var(--color-accent);
    margin-right: 1px;
}

.nav-tags li a:hover {
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
    opacity: 1;
}

.site-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-sign-in {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.nav-sign-in:hover {
    color: var(--color-text);
    border-color: var(--color-text-secondary);
}

.nav-search {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-search:hover {
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
}

.nav-account svg {
    width: 28px;
    height: 28px;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.nav-account:hover svg {
    opacity: 1;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
}

.theme-toggle:hover {
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
}

/* Show/hide sun/moon based on current theme */
html.dark .icon-sun,
html.dark-override .icon-sun {
    display: block;
}
html.dark .icon-moon,
html.dark-override .icon-moon {
    display: none;
}

html:not(.dark):not(.dark-override) .icon-sun {
    display: none;
}
html:not(.dark):not(.dark-override) .icon-moon {
    display: block;
}

/* Auto mode: use system preference for icon */
html.auto:not(.dark-override):not(.light-override) .icon-sun {
    display: none;
}
html.auto:not(.dark-override):not(.light-override) .icon-moon {
    display: block;
}

@media (prefers-color-scheme: dark) {
    html.auto:not(.dark-override):not(.light-override) .icon-sun {
        display: block;
    }
    html.auto:not(.dark-override):not(.light-override) .icon-moon {
        display: none;
    }
}

/* Mobile nav */
@media (max-width: 900px) {
    .nav-tags {
        display: none;
    }

    .nav-sep {
        display: none !important;
    }
}

@media (max-width: 600px) {
    .site-nav {
        display: none;
    }
}

/* ---------- Site Footer ---------- */
.site-footer {
    border-top: 1px solid var(--color-border-subtle);
    padding: 40px 0;
    margin-top: 80px;
}

.site-footer-inner {
    max-width: var(--full-width);
    margin: 0 auto;
    padding: 0 var(--gap);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.site-footer-left {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
}

.site-footer-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 16px;
}

.site-footer-nav a {
    color: var(--color-text-secondary);
    font-size: 1.3rem;
}

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

.site-footer-right {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
}

.site-footer-right a {
    color: var(--color-text-secondary);
}

.site-footer-right a:hover {
    color: var(--color-text);
}

.site-footer-right svg {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

/* ---------- Tag Filter Bar ---------- */
.tag-filter-bar {
    max-width: var(--full-width);
    margin: 0 auto 32px;
    padding: 0 var(--gap);
}

.tag-filter-inner {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
    -webkit-overflow-scrolling: touch;
}

.tag-filter-inner::-webkit-scrollbar {
    height: 4px;
}

.tag-filter-inner::-webkit-scrollbar-track {
    background: transparent;
}

.tag-filter-inner::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

.tag-filter-btn {
    flex-shrink: 0;
    padding: 6px 16px;
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.tag-filter-btn:hover {
    color: var(--color-text);
    border-color: var(--color-border);
}

.tag-filter-btn.active {
    color: #ffffff;
    background: var(--color-accent);
    border-color: var(--color-accent);
}

/* ---------- Post Feed ---------- */
.post-feed-header {
    max-width: var(--full-width);
    margin: 0 auto;
    padding: 48px var(--gap) 32px;
}

.post-feed-header h1 {
    font-size: 3.6rem;
    margin-bottom: 8px;
}

.post-feed-header p {
    color: var(--color-text-secondary);
    font-size: 1.8rem;
    margin: 0;
}

.post-feed {
    max-width: var(--full-width);
    margin: 0 auto;
    padding: 0 var(--gap);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
}

.post-feed.layout-list {
    grid-template-columns: 1fr;
    max-width: var(--wide-width);
}

/* Featured / first post: span full width */
.post-feed .post-card:first-child {
    grid-column: 1 / -1;
}

.post-feed .post-card:first-child .post-card-image {
    height: 320px;
}

.post-feed .post-card:first-child .post-card-title {
    font-size: 2.8rem;
}

/* Hidden by tag filter */
.post-card.tag-hidden {
    display: none;
}

@media (max-width: 768px) {
    .post-feed {
        grid-template-columns: 1fr;
    }

    .post-feed .post-card:first-child .post-card-image {
        height: 200px;
    }
}

/* ---------- Post Card ---------- */
.post-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.post-card:hover {
    border-color: var(--color-border);
    transform: translateY(-2px);
}

.post-card a {
    color: inherit;
    text-decoration: none;
}

.post-card-image-link {
    display: block;
    overflow: hidden;
}

.post-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.post-card:hover .post-card-image {
    transform: scale(1.03);
}

.post-card-content {
    padding: 20px;
}

.post-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.post-card-tag {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-accent);
    background: color-mix(in srgb, var(--color-accent) 12%, transparent);
    padding: 2px 10px;
    border-radius: 12px;
    text-transform: lowercase;
}

.post-card-title {
    font-size: 2rem;
    margin-bottom: 8px;
    line-height: 1.3;
}

.post-card-title a:hover {
    color: var(--color-accent);
}

.post-card-excerpt {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

.post-card-meta .sep {
    opacity: 0.3;
}

/* List layout card */
.layout-list .post-card {
    display: grid;
    grid-template-columns: 280px 1fr;
}

.layout-list .post-card-image {
    height: 100%;
    min-height: 180px;
}

.layout-list .post-card:first-child {
    grid-template-columns: 400px 1fr;
}

@media (max-width: 768px) {
    .layout-list .post-card,
    .layout-list .post-card:first-child {
        grid-template-columns: 1fr;
    }
}

/* ---------- Post / Page Content ---------- */
.post-template .site-main,
.page-template .site-main {
    padding: 0 var(--gap);
}

.post-header {
    max-width: var(--content-width);
    margin: 48px auto 32px;
    text-align: center;
}

.post-header-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--color-accent);
    text-transform: lowercase;
    margin-bottom: 12px;
}

.post-header h1 {
    font-size: 3.8rem;
    margin-bottom: 16px;
}

.post-meta {
    font-size: 1.4rem;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.post-feature-image {
    max-width: var(--wide-width);
    margin: 0 auto 40px;
    border-radius: var(--radius);
    overflow: hidden;
}

.post-feature-image img {
    width: 100%;
    height: auto;
}

/* Post body with TOC layout */
.post-body-wrap {
    max-width: var(--full-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr minmax(0, var(--content-width)) 1fr;
    gap: 0 40px;
}

.post-body-wrap .toc-sidebar {
    grid-column: 1;
    justify-self: end;
}

.post-body-wrap .gh-content {
    grid-column: 2;
}

/* When no TOC, center content */
.post-body-wrap.no-toc {
    display: block;
}

.post-body-wrap.no-toc .gh-content {
    max-width: var(--content-width);
    margin: 0 auto;
}

@media (max-width: 1200px) {
    .post-body-wrap {
        display: block;
    }

    .post-body-wrap .gh-content {
        max-width: var(--content-width);
        margin: 0 auto;
    }
}

/* Ghost content styles */
.gh-content {
    font-size: 1.8rem;
    line-height: 1.7;
    overflow-wrap: break-word;
    word-break: break-word;
}

.gh-content > * + * {
    margin-top: 1.5em;
}

.gh-content h2 {
    font-size: 2.6rem;
    margin-top: 2.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--color-border-subtle);
}

.gh-content h3 {
    font-size: 2.1rem;
    margin-top: 2em;
}

.gh-content h4 {
    font-size: 1.8rem;
    margin-top: 1.5em;
}

.gh-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.gh-content a:hover {
    color: var(--color-link-hover);
}

.gh-content blockquote {
    margin: 2em 0;
    padding: 0 0 0 1.5em;
    border-left: 3px solid var(--color-accent);
    color: var(--color-text-secondary);
    font-style: italic;
}

.gh-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 3em 0;
}

.gh-content ul, .gh-content ol {
    padding-left: 1.5em;
}

.gh-content li + li {
    margin-top: 0.5em;
}

/* Wide and full-width content cards */
.gh-content .kg-width-wide {
    max-width: var(--wide-width);
    margin-left: calc(50% - min(var(--wide-width)/2, 50vw - var(--gap)));
    margin-right: calc(50% - min(var(--wide-width)/2, 50vw - var(--gap)));
}

.gh-content .kg-width-full {
    max-width: none;
    margin-left: calc(50% - 50vw + var(--gap));
    margin-right: calc(50% - 50vw + var(--gap));
}

/* ---------- Code Styling ---------- */
.gh-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--color-bg-code);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    color: var(--color-text);
}

.gh-content pre {
    background: var(--color-bg-code);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
    padding: 20px;
    overflow-x: auto;
    font-size: 1.4rem;
    line-height: 1.5;
    margin: 2em 0;
}

.gh-content pre code {
    background: none;
    padding: 0;
    font-size: inherit;
    border-radius: 0;
}

/* ---------- Table Styling ---------- */
.gh-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2em 0;
    font-size: 1.5rem;
}

.gh-content .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 2em 0;
}

.gh-content table th,
.gh-content table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-subtle);
}

.gh-content table th {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--color-text-heading);
    background: var(--color-bg-elevated);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.gh-content table tr:nth-child(even) {
    background: var(--color-bg-elevated);
}

.gh-content table tr:hover {
    background: color-mix(in srgb, var(--color-accent) 5%, var(--color-bg));
}

/* Benchmark table: numeric columns right-aligned */
.gh-content table td:not(:first-child) {
    font-family: var(--font-mono);
    font-size: 1.4rem;
}

/* ---------- Image / Gallery cards ---------- */
.gh-content .kg-image-card,
.gh-content .kg-gallery-card {
    margin: 2em 0;
}

.gh-content .kg-image-card img {
    border-radius: var(--radius);
}

.gh-content figcaption {
    text-align: center;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
    font-style: italic;
}

/* ---------- TOC Sidebar ---------- */
.toc-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    width: 240px;
    max-height: calc(100vh - var(--header-height) - 48px);
    overflow-y: auto;
    padding-right: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

.toc-sidebar::-webkit-scrollbar {
    width: 4px;
}

.toc-sidebar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

.toc-title {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-list li {
    margin: 0;
}

.toc-list a {
    display: block;
    padding: 4px 0 4px 12px;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    border-left: 2px solid transparent;
    transition: all 0.15s ease;
    line-height: 1.4;
}

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

.toc-list a.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
}

.toc-list .toc-h3 a {
    padding-left: 24px;
    font-size: 1.2rem;
}

/* Mobile TOC (top of post, collapsible) */
.toc-mobile {
    display: none;
    max-width: var(--content-width);
    margin: 0 auto 32px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
    overflow: hidden;
}

.toc-mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.toc-mobile-toggle::after {
    content: '+';
    font-size: 1.6rem;
    transition: transform 0.2s ease;
}

.toc-mobile.open .toc-mobile-toggle::after {
    content: '\2212';
}

.toc-mobile-list {
    display: none;
    padding: 0 16px 12px;
}

.toc-mobile.open .toc-mobile-list {
    display: block;
}

@media (max-width: 1200px) {
    .toc-sidebar {
        display: none;
    }

    .toc-mobile {
        display: block;
    }
}

/* ---------- Post Footer ---------- */
.post-footer {
    max-width: var(--content-width);
    margin: 48px auto 0;
    padding-top: 32px;
    border-top: 1px solid var(--color-border-subtle);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.post-tags a {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-elevated);
    padding: 4px 12px;
    border-radius: 16px;
    border: 1px solid var(--color-border-subtle);
    transition: all 0.15s ease;
}

.post-tags a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Author box */
.post-author-box {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 24px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
    margin-bottom: 32px;
}

.post-author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.post-author-name {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.post-author-name a {
    color: var(--color-text-heading);
}

.post-author-bio {
    font-size: 1.4rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ---------- Recent Posts Footer ---------- */
.recent-posts {
    max-width: var(--wide-width);
    margin: 64px auto 0;
    padding: 0 var(--gap);
}

.recent-posts h3 {
    font-size: 2rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border-subtle);
}

.recent-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

@media (max-width: 768px) {
    .recent-posts-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Tag Page ---------- */
.tag-header {
    max-width: var(--full-width);
    margin: 0 auto;
    padding: 48px var(--gap) 32px;
    text-align: center;
}

.tag-header h1 {
    font-size: 3.6rem;
    margin-bottom: 8px;
}

.tag-header h1::before {
    content: '#';
    color: var(--color-accent);
    margin-right: 4px;
}

.tag-header p {
    color: var(--color-text-secondary);
    font-size: 1.6rem;
    max-width: var(--content-width);
    margin: 0 auto;
}

.tag-post-count {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
}

/* ---------- Author Page ---------- */
.author-header {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 48px var(--gap) 32px;
    text-align: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 16px;
    object-fit: cover;
}

.author-header h1 {
    font-size: 3rem;
}

.author-header .author-bio {
    color: var(--color-text-secondary);
    font-size: 1.6rem;
    margin: 0;
}

.author-header .author-location,
.author-header .author-website {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    color: var(--color-text-secondary);
}

.author-social {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 12px;
}

.author-social a {
    color: var(--color-text-secondary);
}

.author-social a:hover {
    color: var(--color-accent);
}

/* ---------- Error Pages ---------- */
.error-page {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 80px var(--gap);
    text-align: center;
}

.error-code {
    font-family: var(--font-heading);
    font-size: 10rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.5;
}

.error-page h1 {
    font-size: 3rem;
    margin-bottom: 16px;
}

.error-page p {
    color: var(--color-text-secondary);
    font-size: 1.8rem;
    margin-bottom: 32px;
}

.error-link {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.error-link:hover {
    background: var(--color-accent);
    color: #ffffff;
}

/* ---------- Pagination ---------- */
.pagination {
    max-width: var(--full-width);
    margin: 48px auto 0;
    padding: 0 var(--gap);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    color: var(--color-text-secondary);
}

.pagination a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-accent);
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.pagination a:hover {
    border-color: var(--color-accent);
    background: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

/* ---------- Members / Access ---------- */
.gh-content .kg-callout-card {
    border-radius: var(--radius);
}

.post-access-cta {
    max-width: var(--content-width);
    margin: 32px auto;
    padding: 32px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-align: center;
}

.post-access-cta h3 {
    margin-bottom: 8px;
}

.post-access-cta p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.btn-accent {
    display: inline-block;
    background: var(--color-accent);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    transition: opacity 0.15s ease;
}

.btn-accent:hover {
    opacity: 0.85;
    color: #ffffff;
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
    :root {
        --gap: 16px;
    }

    h1, .post-header h1 {
        font-size: 2.8rem;
    }

    .post-feed-header h1 {
        font-size: 2.8rem;
    }

    .gh-content {
        font-size: 1.6rem;
    }

    .post-meta {
        font-size: 1.3rem;
    }
}

/* ---------- Visibility helpers ---------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Ghost Card Assets Integration ---------- */
.gh-content .kg-card {
    margin: 2em 0;
}

.gh-content .kg-embed-card {
    display: flex;
    justify-content: center;
}

.gh-content .kg-embed-card iframe {
    max-width: 100%;
}

/* ---------- Gallery Card ---------- */
.kg-gallery-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: var(--wide-width);
}

.kg-gallery-row {
    display: flex;
    gap: 6px;
}

.kg-gallery-row:not(:first-of-type) {
    margin: 0;
}

.kg-gallery-image {
    flex: 1;
    overflow: hidden;
}

.kg-gallery-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

/* ---------- Bookmark Card ---------- */
.kg-bookmark-card {
    margin: 2em 0;
}

.kg-bookmark-container {
    display: flex;
    min-height: 148px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s ease;
}

.kg-bookmark-container:hover {
    border-color: var(--color-border);
}

.kg-bookmark-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    flex: 1 1 auto;
    padding: 20px;
    overflow: hidden;
}

.kg-bookmark-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-text-heading);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.kg-bookmark-description {
    font-size: 1.4rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.kg-bookmark-metadata {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    flex-wrap: wrap;
}

.kg-bookmark-icon {
    width: 20px;
    height: 20px;
    border-radius: 2px;
}

.kg-bookmark-author {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kg-bookmark-publisher {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kg-bookmark-thumbnail {
    flex: 0 0 200px;
    position: relative;
    min-height: 100%;
}

.kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 600px) {
    .kg-bookmark-container {
        flex-direction: column;
    }

    .kg-bookmark-thumbnail {
        flex: none;
        width: 100%;
        min-height: 160px;
        order: -1;
    }
}

/* ---------- Tinkerer Charts ---------- */
.tinkerer-chart {
    margin: 2em 0;
    padding: 24px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius);
}

.tinkerer-chart-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin: 0 0 16px;
    text-align: center;
}

.tinkerer-chart canvas {
    width: 100% !important;
    max-height: 450px;
}

.tinkerer-chart-caption {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: 12px;
    font-family: var(--font-mono);
}