/* Crimson — Ghost theme
   ========================================================================== */

:root {
    --font-serif: 'Crimson Pro', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: var(--font-serif);
}

html[class*="font-Modern"] { --font-body: var(--font-sans); }
html[class*="font-Elegant"] { --font-body: Georgia, 'Times New Roman', serif; }

:root {

    --color-bg: #fdfcf9;
    --color-fg: #1a1a1a;
    --color-muted: #6b6b6b;
    --color-border: #e8e6e0;
    --color-accent: #8b2e2e;
    --color-card: #ffffff;

    --font-size-base: 20px;
    --content-max: 720px;
    --container-max: 1200px;
    --heading-weight: 700;
    --radius: 6px;
}

html.scheme-Dark,
html.scheme-Auto {
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    html.scheme-Auto {
        --color-bg: #131211;
        --color-fg: #ececec;
        --color-muted: #9a9a9a;
        --color-border: #2a2826;
        --color-card: #1c1b19;
        --color-accent: #e57373;
    }
}

html.scheme-Dark {
    --color-bg: #131211;
    --color-fg: #ececec;
    --color-muted: #9a9a9a;
    --color-border: #2a2826;
    --color-card: #1c1b19;
    --color-accent: #e57373;
}

/* Font size customization */
html.font-size-Small { --font-size-base: 18px; }
html.font-size-Medium { --font-size-base: 20px; }
html.font-size-Large { --font-size-base: 22px; }
html.font-size-Extra.Large,
html[class*="font-size-Extra"] { --font-size-base: 24px; }

/* Heading weight customization */
html.heading-weight-Regular { --heading-weight: 400; }
html.heading-weight-Medium { --heading-weight: 500; }
html.heading-weight-Semibold { --heading-weight: 600; }
html.heading-weight-Bold { --heading-weight: 700; }

/* Content width */
html.width-Narrow { --content-max: 620px; }
html.width-Standard { --content-max: 720px; }
html.width-Wide { --content-max: 860px; }

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

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

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-fg);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.65;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-body);
    font-weight: var(--heading-weight);
    line-height: 1.2;
    margin: 1.4em 0 0.5em;
    letter-spacing: -0.01em;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}
a:hover { text-decoration: underline; }

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

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

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

/* Header / Nav */
.site-nav {
    border-bottom: 1px solid var(--color-border);
    padding: 18px 0;
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--color-bg) 92%, transparent);
    backdrop-filter: blur(10px);
    z-index: 100;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.nav-brand {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--color-fg);
}
.nav-brand img { max-height: 36px; }
.nav-menu {
    font-family: var(--font-sans);
    font-size: 0.95rem;
}
.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 22px;
    margin: 0; padding: 0;
}
.nav-menu a { color: var(--color-fg); }
.nav-subscribe {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 8px 16px;
    background: var(--color-fg);
    color: var(--color-bg);
    border-radius: var(--radius);
}
.nav-subscribe:hover { text-decoration: none; opacity: 0.9; }

/* Site header (homepage) */
.site-header {
    text-align: center;
    padding: 60px 20px 40px;
}
.site-title {
    font-size: 3rem;
    margin: 0 0 12px;
}
.site-description {
    color: var(--color-muted);
    font-size: 1.15rem;
    margin: 0;
}

/* Post feed */
.post-feed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 36px;
    padding: 40px 0 80px;
}

.post-card {
    background: var(--color-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: transform 0.2s, box-shadow 0.2s;
}
.post-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}
.post-card-link { color: inherit; display: block; }
.post-card-link:hover { text-decoration: none; }
.post-card-image-wrap {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-border);
}
.post-card-image { width: 100%; height: 100%; object-fit: cover; }
.post-card-content { padding: 22px; }
.post-card-tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    font-weight: 600;
}
.post-card-title {
    font-size: 1.5rem;
    margin: 8px 0 10px;
    line-height: 1.25;
}
.post-card-excerpt {
    color: var(--color-muted);
    font-size: 1rem;
    margin: 0 0 14px;
    line-height: 1.5;
}
.post-card-meta {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--color-muted);
    display: flex;
    gap: 12px;
}

/* Article */
.article-header {
    padding: 60px 0 30px;
    text-align: center;
}
.article-tag {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}
.article-title {
    font-size: clamp(2rem, 5vw, 3.4rem);
    margin: 16px 0;
    line-height: 1.15;
}
.article-excerpt {
    color: var(--color-muted);
    font-size: 1.2rem;
    margin: 0 0 24px;
    font-style: italic;
}
.article-meta {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-muted);
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.article-meta a { color: var(--color-fg); }
.article-image {
    margin: 30px auto 50px;
    max-width: 1000px;
}
.article-image img { border-radius: var(--radius); }
.article-image figcaption {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-muted);
    text-align: center;
    margin-top: 12px;
}
.article-content {
    padding-bottom: 40px;
}
.article-content p,
.article-content ul,
.article-content ol,
.article-content blockquote {
    margin: 0 0 1.4em;
}
.article-content h2 { font-size: 1.8rem; }
.article-content h3 { font-size: 1.45rem; }
.article-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: 20px;
    font-style: italic;
    color: var(--color-muted);
}
.article-content code {
    font-family: 'SF Mono', Menlo, monospace;
    background: var(--color-border);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85em;
}
.article-content pre {
    background: #1a1a1a;
    color: #f5f5f5;
    padding: 18px;
    border-radius: var(--radius);
    overflow-x: auto;
    font-size: 0.9rem;
}
.article-content pre code { background: transparent; padding: 0; color: inherit; }
.article-content img { border-radius: var(--radius); margin: 1.5em auto; }
.article-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 2em 0;
}

.article-footer {
    padding: 30px 24px 60px;
    border-top: 1px solid var(--color-border);
    margin-top: 40px;
}
.article-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    padding: 4px 12px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    color: var(--color-muted);
}

/* Related posts */
.related-posts {
    background: color-mix(in srgb, var(--color-fg) 3%, var(--color-bg));
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
}
.related-posts-title {
    text-align: center;
    font-size: 2rem;
    margin: 0 0 40px;
}
.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

/* Archive */
.archive-header {
    text-align: center;
    padding: 60px 20px 20px;
}
.archive-title { font-size: 2.6rem; margin: 0 0 12px; }
.archive-description { color: var(--color-muted); }
.author-avatar {
    width: 90px; height: 90px;
    border-radius: 50%;
    margin: 0 auto 20px;
    object-fit: cover;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding: 40px 0 80px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
}
.pagination a {
    padding: 10px 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-fg);
}
.pagination .page-number { color: var(--color-muted); align-self: center; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 40px 0;
    margin-top: 60px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-muted);
}
.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-nav ul {
    list-style: none;
    display: flex;
    gap: 18px;
    margin: 0; padding: 0;
}
.footer-nav a { color: var(--color-muted); }

/* Error */
.error-container {
    text-align: center;
    padding: 120px 20px;
}
.error-code { font-size: 6rem; margin: 0; }
.error-message { color: var(--color-muted); font-size: 1.2rem; }
.error-link {
    display: inline-block;
    margin-top: 24px;
    font-family: var(--font-sans);
}

/* Responsive */
@media (max-width: 600px) {
    .nav-menu { display: none; }
    .site-title { font-size: 2.2rem; }
    .post-feed { grid-template-columns: 1fr; gap: 24px; }
    .footer-container { flex-direction: column; text-align: center; }
}

/* KG cards */
.kg-width-wide { max-width: 1100px; margin-left: auto; margin-right: auto; }
.kg-width-full { max-width: 100vw; margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); }
.kg-bookmark-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    margin: 1.5em 0;
}
.kg-callout-card {
    padding: 18px 22px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--color-accent) 8%, var(--color-bg));
    margin: 1.5em 0;
}

/* ============================================================
   v1.1 additions — accents, fonts, note template, author box,
   subscribe CTA, footer nav, mobile nav
   ============================================================ */

/* Font variants */
html[class*="font-Fraunces"] { --font-body: 'Fraunces', Georgia, serif; }
html[class*="font-Modern"]   { --font-body: var(--font-sans); }
html[class*="font-System"]   { --font-body: Georgia, 'Times New Roman', serif; }

/* Accent colors */
html.accent-Crimson { --color-accent: #8b2e2e; }
html.accent-Ink     { --color-accent: #1a1a1a; }
html.accent-Forest  { --color-accent: #2f6b3a; }
html.accent-Ocean   { --color-accent: #1e5a8a; }
html.accent-Plum    { --color-accent: #6b2e6b; }
html.accent-Amber   { --color-accent: #b46a1c; }

@media (prefers-color-scheme: dark) {
    html.scheme-Auto.accent-Crimson { --color-accent: #e57373; }
    html.scheme-Auto.accent-Forest  { --color-accent: #7fc28b; }
    html.scheme-Auto.accent-Ocean   { --color-accent: #6cb0e6; }
    html.scheme-Auto.accent-Plum    { --color-accent: #c47fc4; }
    html.scheme-Auto.accent-Amber   { --color-accent: #e0a96a; }
    html.scheme-Auto.accent-Ink     { --color-accent: #ececec; }
}
html.scheme-Dark.accent-Crimson { --color-accent: #e57373; }
html.scheme-Dark.accent-Ink     { --color-accent: #ececec; }

/* Nav variants */
.nav-Centered .nav-container { justify-content: center; gap: 32px; }
.nav-Centered .nav-brand { order: 2; margin: 0 12px; }
.nav-Minimal { border-bottom: none; }
.nav-Minimal .nav-subscribe { background: transparent; color: var(--color-accent); border: 1px solid var(--color-accent); }

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    width: 32px; height: 32px;
    padding: 6px;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--color-fg);
    border-radius: 2px;
}
@media (max-width: 720px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 16px 24px;
    }
    .nav-menu.is-open { display: block; }
    .nav-menu ul { flex-direction: column; gap: 14px; }
}

/* Footer primary nav (mirror of top) */
.footer-primary-nav {
    padding: 32px 24px 0;
    text-align: center;
    font-family: var(--font-sans);
    font-size: 0.95rem;
}
.footer-primary-nav ul {
    list-style: none;
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin: 0; padding: 0;
}
.footer-primary-nav a { color: var(--color-fg); }

/* Author box */
.author-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 30px;
    margin: 40px 0 30px;
    background: color-mix(in srgb, var(--color-fg) 3%, var(--color-bg));
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}
.author-box-avatar {
    width: 72px;
    height: 72px;
    min-width: 72px;
    min-height: 72px;
    border-radius: 50%;
    overflow: hidden;
    flex: 0 0 72px;
    display: block;
}

.author-box-avatar img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: 50%;
}.author-box-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
}
.author-box-name {
    font-size: 1.3rem;
    margin: 4px 0 8px;
}
.author-box-name a { color: var(--color-fg); }
.author-box-bio { margin: 0 0 10px; color: var(--color-muted); font-size: 1rem; }
.author-box-meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.author-box-meta a { color: var(--color-accent); }

/* Subscribe CTA */
.subscribe-cta {
    text-align: center;
    padding: 40px 30px;
    margin: 30px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.subscribe-cta h3 {
    font-size: 1.8rem;
    margin: 0 0 8px;
}
.subscribe-cta p {
    color: var(--color-muted);
    margin: 0 0 20px;
}
.subscribe-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--color-accent);
    color: #fff;
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-weight: 600;
}
.subscribe-btn:hover { text-decoration: none; opacity: 0.92; }

/* ============================================================
   NOTE TEMPLATE — book-like, generous white space
   ============================================================ */
.note {
    padding: 80px 0 60px;
}
.note-header {
    margin-bottom: 50px;
}
.note-meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-muted);
    margin-bottom: 16px;
}
.note-meta a { color: var(--color-accent); }
.note-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
    line-height: 1.18;
    letter-spacing: -0.015em;
    margin: 0;
    /* Book-feel: hanging punctuation, drop initial */
}
.note-content {
    font-size: calc(var(--font-size-base) + 1px);
    line-height: 1.75;
    hyphens: auto;
    text-wrap: pretty;
}
.note-content > p:first-of-type::first-letter {
    font-size: 3.4em;
    line-height: 0.85;
    font-weight: var(--heading-weight);
    float: left;
    padding: 6px 12px 0 0;
    color: var(--color-accent);
}
.note-content p,
.note-content ul,
.note-content ol,
.note-content blockquote { margin: 0 0 1.4em; }
.note-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 22px;
    font-style: italic;
    color: var(--color-muted);
    margin-left: 0;
}
.note-content hr {
    border: 0;
    text-align: center;
    margin: 2.4em 0;
}
.note-content hr::before {
    content: "* * *";
    letter-spacing: 0.6em;
    color: var(--color-muted);
}

/* Note bottom nav */
.note-nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 16px;
    align-items: stretch;
    margin-top: 80px;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}
.note-nav-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-fg);
    text-decoration: none;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    text-align: left;
    min-width: 0;
}
.note-nav-link:hover {
    border-color: var(--color-accent);
    text-decoration: none;
    background: color-mix(in srgb, var(--color-accent) 4%, transparent);
}
.note-nav-link.next { text-align: right; }
.note-nav-link.random { text-align: center; min-width: 130px; }
.note-nav-label {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-muted);
}
.note-nav-title {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.note-nav-link[disabled] { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 640px) {
    .note { padding: 50px 0 40px; }
    .note-nav {
        grid-template-columns: 1fr;
    }
    .note-nav-link.next { text-align: left; }
}

/* Heading font override */
:root { --font-heading: var(--font-body); }
html[class*="heading-Crimson"]  { --font-heading: 'Crimson Pro', Georgia, serif; }
html[class*="heading-Fraunces"] { --font-heading: 'Fraunces', Georgia, serif; }
html[class*="heading-Modern"]   { --font-heading: var(--font-sans); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); }