/* =========================================================
   VSITS Theme — Main Stylesheet
   Design: Claude Design editorial / field notebook aesthetic
   ========================================================= */

/* ---------------------------------------------------------
   1. Design Tokens
   --------------------------------------------------------- */
:root {
    --paper:        #f4f1ea;
    --paper-2:      #ebe7dd;
    --rule:         #d8d2c4;
    --ink:          #1a1a1a;
    --ink-2:        #3d3d3d;
    --ink-3:        #6b665c;
    --accent:       #c2410c;
    --accent-soft:  #e8d5c4;
    --highlight:    #e8e3d6;

    --font-serif: 'Fraunces', Georgia, serif;
    --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
    --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

    --max-width:     1240px;
    --content-width: 740px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    font-feature-settings: 'ss01', 'cv11';
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

/* Paper grain */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.35;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' seed='4'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.1 0 0 0 0 0.05 0 0 0 0.08 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

img, video { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; transition: color .2s; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ---------------------------------------------------------
   3. Layout
   --------------------------------------------------------- */
.wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 2;
}

.site-wrapper { display: flex; flex-direction: column; min-height: 100vh; }
.site-main { flex: 1; }

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 999;
    background: var(--accent);
    color: var(--paper);
    padding: 0.5rem 1rem;
    font-size: 13px;
    font-family: var(--font-mono);
}
.skip-link:focus { top: 0; }

/* ---------------------------------------------------------
   4. Header
   --------------------------------------------------------- */
.site-header {
    border-bottom: 1px solid var(--rule);
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(244, 241, 234, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}

/* Brand */
.site-branding a,
.site-name {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
    font-variation-settings: 'opsz' 144, 'SOFT' 50;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
}

.brand-mark {
    width: 22px;
    height: 22px;
    border: 1.5px solid var(--ink);
    border-radius: 50%;
    display: inline-block;
    position: relative;
    flex-shrink: 0;
}
.brand-mark::after {
    content: '';
    position: absolute;
    inset: 4px;
    background: var(--accent);
    border-radius: 50%;
}

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

/* Primary Nav */
.primary-nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.primary-nav a {
    color: var(--ink-2);
    position: relative;
    transition: color .2s;
}
.primary-nav a:hover { color: var(--accent); }
.primary-nav .current-menu-item a,
.primary-nav .current_page_item a {
    color: var(--ink);
}
.primary-nav .current-menu-item a::before,
.primary-nav .current_page_item a::before {
    content: '◆';
    position: absolute;
    left: -14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-size: 8px;
}

/* Mobile toggle */
.menu-toggle {
    display: none;
    padding: 4px;
    color: var(--ink);
}

/* ---------------------------------------------------------
   5. Buttons
   --------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 22px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid var(--ink);
    background: var(--ink);
    color: var(--paper);
    transition: all .25s ease;
    cursor: pointer;
}
.btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--paper);
}
.btn .arr { transition: transform .25s ease; }
.btn:hover .arr { transform: translateX(3px); }

.btn.ghost {
    background: transparent;
    color: var(--ink);
}
.btn.ghost:hover {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}

/* ---------------------------------------------------------
   6. Shared Typographic Elements
   --------------------------------------------------------- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 36px;
}
.eyebrow::before {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--ink-3);
    flex-shrink: 0;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--ink);
    padding-bottom: 18px;
    margin-bottom: 8px;
}
.section-head h2 {
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: 32px;
    letter-spacing: -0.02em;
    font-variation-settings: 'opsz' 144;
}
.section-head .meta {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    display: flex;
    gap: 24px;
    align-items: center;
}
.section-head .meta a {
    color: var(--ink);
    border-bottom: 1px solid var(--ink);
    padding-bottom: 1px;
    transition: color .2s, border-color .2s;
}
.section-head .meta a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------------------------------------------------------
   7. Hero (Front Page)
   --------------------------------------------------------- */
.home-hero {
    padding: 110px 0 90px;
    border-bottom: 1px solid var(--rule);
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: end;
}

.hero-title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(48px, 6.4vw, 92px);
    line-height: 0.98;
    letter-spacing: -0.035em;
    font-variation-settings: 'opsz' 144, 'SOFT' 30, 'WONK' 1;
    color: var(--ink);
    margin-top: 0;
    margin-bottom: 0;
}
.hero-title em {
    font-style: italic;
    font-weight: 300;
    color: var(--accent);
    font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
}

.hero-side { padding-bottom: 12px; }

.hero-lede {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.55;
    color: var(--ink-2);
    font-weight: 400;
    max-width: 440px;
    margin-bottom: 28px;
    font-variation-settings: 'opsz' 14;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.margin-note {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--ink-3);
    letter-spacing: 0.08em;
    line-height: 1.7;
}
.margin-note.top-right { top: 130px; right: 32px; text-align: right; }
.margin-note.bottom-left { bottom: 30px; left: 32px; }
.margin-note .dot { color: var(--accent); }

/* ---------------------------------------------------------
   8. Post Index (Home & Archive)
   --------------------------------------------------------- */
.index-section {
    padding: 70px 0 120px;
}

.post-index { list-style: none; }

/* Category sigil colors */
.post-cat {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-2);
    padding-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.post-cat .sigil {
    width: 6px;
    height: 6px;
    background: var(--accent);
    display: inline-block;
    transform: rotate(45deg);
    flex-shrink: 0;
}
.post-cat[data-cat="general"] .sigil { background: var(--ink); }
.post-cat[data-cat="uncategorized"] .sigil {
    background: var(--ink-3);
    border-radius: 50%;
    transform: none;
}

/* Standard post row */
.post-row {
    display: grid;
    grid-template-columns: 80px 140px 1fr 100px 60px;
    gap: 32px;
    padding: 32px 0;
    border-bottom: 1px solid var(--rule);
    align-items: start;
    position: relative;
    transition: padding .35s cubic-bezier(.4,0,.2,1);
    cursor: pointer;
}
.post-row::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--highlight);
    z-index: -1;
    opacity: 0;
    transition: opacity .3s;
}
.post-row:hover { padding-left: 16px; padding-right: 16px; }
.post-row:hover::before { opacity: 1; }

.post-num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
    letter-spacing: 0.06em;
    padding-top: 8px;
}

.post-row .post-title {
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: 26px;
    line-height: 1.18;
    letter-spacing: -0.02em;
    color: var(--ink);
    font-variation-settings: 'opsz' 144, 'SOFT' 30;
    margin-bottom: 8px;
    transition: color .2s;
}
.post-row:hover .post-title { color: var(--accent); }

.post-row .post-excerpt {
    font-size: 14px;
    color: var(--ink-3);
    line-height: 1.55;
    max-width: 580px;
}

.post-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
    letter-spacing: 0.04em;
    padding-top: 8px;
    text-align: right;
}

.post-read-time {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-2);
    text-align: right;
    padding-top: 8px;
}

/* Featured post row */
.post-row.featured {
    grid-template-columns: 80px 1fr 200px;
    padding: 48px 0 56px;
    border-bottom: 1px solid var(--ink);
}

.post-row.featured .post-title {
    font-size: 44px;
    font-weight: 400;
    line-height: 1.05;
    margin-bottom: 16px;
    font-variation-settings: 'opsz' 144, 'SOFT' 50, 'WONK' 1;
}

.post-row.featured .post-excerpt {
    font-family: var(--font-serif);
    font-size: 18px;
    color: var(--ink-2);
    max-width: 640px;
    font-variation-settings: 'opsz' 14;
}

.post-meta-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.post-meta-stack .post-date,
.post-meta-stack .post-read-time { text-align: left; padding-top: 0; }

.featured-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.featured-tag::before { content: '★'; font-size: 12px; }

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.375rem;
    padding: 3rem 0 2rem;
    font-family: var(--font-mono);
    font-size: 12px;
}
.pagination .page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid transparent;
    color: var(--ink-3);
    transition: all .2s;
}
.pagination .page-numbers:hover {
    border-color: var(--rule);
    color: var(--ink);
}
.pagination .page-numbers.current {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}
.pagination .page-numbers.dots { border: none; }

/* ---------------------------------------------------------
   9. Thesis / Interlude
   --------------------------------------------------------- */
.thesis {
    background: var(--ink);
    color: var(--paper);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}
.thesis::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--ink-2) 1px, transparent 1px),
        linear-gradient(90deg, var(--ink-2) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.25;
}
.thesis-content { position: relative; max-width: 880px; }
.thesis .eyebrow { color: var(--accent-soft); margin-bottom: 32px; }
.thesis .eyebrow::before { background: var(--accent-soft); }

.thesis h3 {
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: clamp(32px, 4vw, 56px);
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 32px;
    font-variation-settings: 'opsz' 144, 'SOFT' 50, 'WONK' 1;
}
.thesis h3 em { font-style: italic; color: var(--accent-soft); font-weight: 400; }

.thesis-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid var(--ink-2);
}
.stat .num {
    font-family: var(--font-serif);
    font-size: 56px;
    font-weight: 400;
    color: var(--paper);
    letter-spacing: -0.03em;
    font-variation-settings: 'opsz' 144;
    margin-bottom: 8px;
}
.stat .num em { color: var(--accent-soft); font-style: normal; }
.stat .label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-3);
}

/* ---------------------------------------------------------
   10. Single Post
   --------------------------------------------------------- */
.single-post { padding: 0 0 5rem; }

.post-header {
    padding: 5rem 0 3rem;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 3.5rem;
}

.post-header-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 2rem;
}

.post-header-category { color: var(--accent); }
.post-header-sep { color: var(--rule); }

.post-title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(36px, 5vw, 72px);
    line-height: 1.0;
    letter-spacing: -0.03em;
    font-variation-settings: 'opsz' 144, 'SOFT' 40, 'WONK' 1;
    color: var(--ink);
    margin-bottom: 1.5rem;
}

.post-subtitle {
    font-family: var(--font-serif);
    font-size: 22px;
    line-height: 1.5;
    color: var(--ink-2);
    font-weight: 400;
    font-variation-settings: 'opsz' 14;
    max-width: 640px;
}

/* Content */
.post-content-wrap {
    max-width: var(--content-width);
    margin: 0 auto;
}

.post-content {
    font-size: 18px;
    line-height: 1.75;
    color: var(--ink-2);
}
.post-content > * + * { margin-top: 1.5em; }

.post-content h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--ink);
    margin-top: 3em;
    margin-bottom: 0.75em;
    font-variation-settings: 'opsz' 144;
}
.post-content h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--ink);
    margin-top: 2.5em;
    margin-bottom: 0.5em;
    font-variation-settings: 'opsz' 144;
}
.post-content h4 {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink);
    margin-top: 2em;
    margin-bottom: 0.75em;
}

.post-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.post-content a:hover { text-decoration-color: var(--accent); }

.post-content ul { padding-left: 1.5em; list-style: disc; }
.post-content ol { padding-left: 1.5em; list-style: decimal; }
.post-content li + li { margin-top: 0.375em; }
.post-content li::marker { color: var(--accent); }
.post-content strong { font-weight: 600; color: var(--ink); }

.post-content blockquote {
    border-left: 2px solid var(--accent);
    padding: 1.25rem 1.5rem;
    background: var(--highlight);
    margin: 2em 0;
}
.post-content blockquote > * + * { margin-top: 0.75em; }
.post-content blockquote p {
    font-family: var(--font-serif);
    font-size: 17px;
    color: var(--ink);
    font-variation-settings: 'opsz' 14;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    margin: 2em 0;
    font-family: var(--font-sans);
}
.post-content th {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--ink);
}
.post-content td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--rule);
    vertical-align: top;
}
.post-content tr:last-child td { border-bottom: none; }
.post-content tr:hover td { background: var(--highlight); }

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

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--paper-2);
    color: var(--accent);
    padding: 0.15em 0.4em;
    border: 1px solid var(--rule);
}

.post-content pre {
    background: var(--ink);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2em 0;
}
.post-content pre code {
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.7;
    background: none;
    color: var(--paper);
    padding: 0;
    border: none;
}

.post-content figure { margin: 2em 0; }
.post-content figcaption {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
    text-align: center;
    margin-top: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Post footer */
.post-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--rule);
    max-width: var(--content-width);
    margin-left: auto;
    margin-right: auto;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}
.post-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: transparent;
    color: var(--ink-3);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid var(--rule);
    transition: border-color .2s, color .2s;
}
.post-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Post nav */
.post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}
.post-nav-item {
    padding: 1.25rem;
    border: 1px solid var(--rule);
    transition: border-color .2s;
}
.post-nav-item:hover { border-color: var(--ink); }
.post-nav-item.post-nav--next { text-align: right; }
.post-nav-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    display: block;
    margin-bottom: 0.5rem;
}
.post-nav-title {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.35;
    font-variation-settings: 'opsz' 14;
}
.post-nav-item a { color: inherit; }
.post-nav-item a:hover .post-nav-title { color: var(--accent); }

/* ---------------------------------------------------------
   11. Pages (About, Services, Contact, etc.)
   --------------------------------------------------------- */
.page-content {
    padding: 5rem 0;
}
.page-content .wrap {
    max-width: calc(var(--content-width) + 64px);
}
.page-title-wrap {
    padding-bottom: 3rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--rule);
}
.page-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 1rem;
}
h1.page-title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(36px, 5vw, 64px);
    letter-spacing: -0.03em;
    line-height: 1.0;
    color: var(--ink);
    font-variation-settings: 'opsz' 144, 'SOFT' 40;
}
.page-body {
    font-size: 18px;
    line-height: 1.75;
    color: var(--ink-2);
}
.page-body > * + * { margin-top: 1.5em; }
.page-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* ---------------------------------------------------------
   12. Archive header
   --------------------------------------------------------- */
.archive-header {
    padding: 4rem 0 3rem;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 0;
}
.archive-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 0.75rem;
}
.archive-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--ink);
    font-variation-settings: 'opsz' 144, 'SOFT' 40;
}

/* ---------------------------------------------------------
   13. 404
   --------------------------------------------------------- */
.error-404 { padding: 8rem 0; text-align: center; }
.error-code {
    font-family: var(--font-serif);
    font-size: 10rem;
    font-weight: 300;
    color: var(--rule);
    line-height: 1;
    letter-spacing: -0.05em;
    font-variation-settings: 'opsz' 144;
    margin-bottom: 1rem;
}
.error-404 h1 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 0.75rem;
    font-variation-settings: 'opsz' 144;
}
.error-404 p { color: var(--ink-3); margin-bottom: 2rem; font-family: var(--font-mono); font-size: 13px; }

/* ---------------------------------------------------------
   14. Footer
   --------------------------------------------------------- */
.site-footer {
    border-top: 1px solid var(--ink);
    padding: 80px 0 40px;
    background: var(--paper-2);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px;
    padding-bottom: 64px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--rule);
}
.footer-brand {
    max-width: 360px;
}
.footer-brand .site-name {
    font-size: 28px;
    margin-bottom: 20px;
}
.footer-brand p {
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.55;
    color: var(--ink-2);
    font-variation-settings: 'opsz' 14;
}
.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ink-3);
    margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--ink);
    font-variation-settings: 'opsz' 14;
    transition: color .2s;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 32px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
    letter-spacing: 0.04em;
}
.footer-bottom a { color: var(--ink-3); transition: color .2s; }
.footer-bottom a:hover { color: var(--accent); }
.footer-legal { display: flex; gap: 24px; }

/* ---------------------------------------------------------
   15. Animations
   --------------------------------------------------------- */
@keyframes rise {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
.rise     { animation: rise .9s cubic-bezier(.2,.7,.2,1) both; }
.rise.d1  { animation-delay: .1s; }
.rise.d2  { animation-delay: .25s; }
.rise.d3  { animation-delay: .4s; }
.rise.d4  { animation-delay: .55s; }

/* ---------------------------------------------------------
   16. Responsive
   --------------------------------------------------------- */
@media (max-width: 1024px) {
    .post-row { grid-template-columns: 60px 120px 1fr 90px; }
    .post-read-time { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; max-width: 100%; }
}

@media (max-width: 880px) {
    .primary-nav { display: none; }
    .primary-nav.is-open {
        display: block;
        position: absolute;
        top: 61px;
        left: 0;
        right: 0;
        background: var(--paper);
        border-bottom: 1px solid var(--rule);
        padding: 1rem 2rem;
    }
    .primary-nav.is-open ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    .primary-nav.is-open .current-menu-item a::before { display: none; }
    .menu-toggle { display: flex; }
    .site-header { position: relative; }

    .hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .home-hero { padding: 70px 0 60px; }
    .margin-note { display: none; }

    .post-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 24px 0;
    }
    .post-row.featured { grid-template-columns: 1fr; padding: 32px 0 40px; }
    .post-num, .post-date { padding-top: 0; text-align: left; }
    .post-cat { padding-top: 0; }
    .post-row .post-title { font-size: 22px; }
    .post-row.featured .post-title { font-size: 32px; }
    .post-meta-stack { flex-direction: row; flex-wrap: wrap; gap: 12px; }

    .thesis-stats { grid-template-columns: 1fr; gap: 32px; }

    .post-nav { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-bottom { flex-direction: column; text-align: center; }

    .section-head { flex-direction: column; gap: 12px; }
}

@media (max-width: 480px) {
    .wrap { padding: 0 20px; }
    .post-content { font-size: 16px; }
}