/* ═══════════════════════════════════════════════════════════════════════════
   ZsinTech — Editorial Design System (v5)
   Inspired by Apple, Linear, NYT Magazine, A24, MIT Media Lab
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ───────────────────────────────────────────────────────── */
:root {
  --bg: #FAFAFA;
  --bg-warm: #F7F6F3;
  --surface: #FFFFFF;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-elevated: rgba(255, 255, 255, 0.88);

  --ink: #111111;
  --ink-secondary: #37352F;
  --ink-tertiary: #6B6B6B;
  --ink-muted: #9B9B9B;
  --ink-faint: #BFBFBF;

  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --accent-gold: #C9A96E;

  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);

  --navy: #0F172A;
  --navy-soft: #1E293B;
  --slate: #334155;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --max-width: 1200px;
  --max-prose: 680px;
  --gap: 1.5rem;
  --gap-lg: 2.5rem;
  --gap-xl: 4rem;

  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);

  --blur: saturate(180%) blur(20px);
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* ─── Base ────────────────────────────────────────────────────────────────── */
body.public-body {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-secondary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--ink-secondary); text-decoration: none; }
a:hover { color: var(--ink); }

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

/* ─── Typography ──────────────────────────────────────────────────────────── */
.font-display,
.hero-title,
.section-title,
.page-hero h1,
.page-shell-header h1 {
  font-family: var(--font-display) !important;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.hero-title { font-size: clamp(2.5rem, 5vw, 4rem); }
.section-title { font-size: 1.5rem; }

/* ─── Navigation ──────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  transition: transform var(--transition), opacity var(--transition);
}

.site-header.nav-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.nav-public {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  flex-shrink: 0;
}

.logo-accent { color: var(--accent); font-weight: 700; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  margin-left: auto;
}

.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  font-size: 0.8125rem !important;
  font-weight: 500;
  color: var(--ink-tertiary) !important;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
  position: relative;
  text-transform: none !important;
  letter-spacing: -0.01em !important;
}

.nav-links a::after {
  display: none !important;
}

.nav-links a:hover {
  color: var(--ink) !important;
  background: rgba(0, 0, 0, 0.04);
}

.nav-links a.active {
  color: var(--ink) !important;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.05);
}

.nav-divider {
  width: 1px;
  height: 14px;
  background: var(--border-strong);
  margin: 0 0.35rem;
  flex-shrink: 0;
}

/* ─── Homepage Hero ───────────────────────────────────────────────────────── */
.public-main.dashboard-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

.dash-hero {
  display: grid !important;
  grid-template-columns: 1.1fr 0.9fr !important;
  gap: var(--gap-lg);
  align-items: center;
  padding: 4rem 0 3rem;
  min-height: auto;
}

.dash-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dash-hero-copy .hero-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}

.dash-hero-copy .hero-title {
  font-family: var(--font-display) !important;
  font-size: clamp(2.5rem, 4.5vw, 3.5rem) !important;
  line-height: 1.1 !important;
  margin-bottom: 1.25rem;
  color: var(--ink) !important;
  font-style: normal !important;
  opacity: 1 !important;
}

.dash-hero-copy .hero-desc {
  color: var(--ink-tertiary);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 28rem;
  margin: 0 0 1.5rem;
}

.dash-hero-copy .hero-desc a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.dash-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dash-hero-media {
  border-radius: var(--radius-xl) !important;
  overflow: hidden;
  min-height: 280px;
  max-height: 380px;
}

.dash-hero-media img,
.dash-hero-media .media-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ink) !important;
  color: #fff !important;
  border-color: var(--ink) !important;
  box-shadow: none !important;
  border-radius: 8px;
}

.btn-primary:hover {
  background: var(--navy-soft) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md) !important;
}

.btn-outline {
  background: transparent;
  color: var(--ink-secondary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-tertiary);
  border: none;
}

.btn-ghost:hover { color: var(--ink); }

/* ─── Section Panels ──────────────────────────────────────────────────────── */
.dash-row {
  display: grid;
  gap: var(--gap-lg);
  margin-bottom: var(--gap-lg);
}

.dash-row--2 { grid-template-columns: 1fr 1fr; }
.dash-row--3 { grid-template-columns: repeat(3, 1fr); }
.dash-row--2-1 { grid-template-columns: 2fr 1fr; }

.dash-panel {
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
  min-width: 0;
}

.dash-panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0;
  border-bottom: none;
}

.dash-panel-title {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

.dash-panel-link {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
}

.dash-panel-link:hover { color: var(--accent-hover); }

/* ─── Tile Cards (compact list items) ─────────────────────────────────────── */
.tile-grid {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tile-grid--2 { display: flex; flex-direction: column; }
.tile-grid--3 { display: flex; flex-direction: column; }

.tile {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.6rem 0.5rem;
  border-radius: var(--radius);
  border: none;
  transition: background var(--transition);
}

.tile:hover {
  background: rgba(0, 0, 0, 0.025);
}

.tile-link {
  display: contents;
  color: inherit;
}

.tile-thumb {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-warm);
  flex-shrink: 0;
}

.tile-thumb .media-cover,
.tile-thumb img.media-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tile-body { min-width: 0; }

.tile-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
  font-size: 0.6875rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 500;
}

.tile-title {
  font-family: var(--font-body) !important;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tile-excerpt {
  font-size: 0.75rem;
  color: var(--ink-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 0.1rem;
}

.tile-badge {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
}

.tile-badge--project { background: #ECFDF5; color: #065F46; }
.tile-badge--repost { background: #EFF6FF; color: #1E40AF; }
.tile-badge--video { background: #F5F3FF; color: #5B21B6; }

/* ─── Project Strip ───────────────────────────────────────────────────────── */
.project-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.project-tile {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.project-tile-link { display: block; color: inherit; }

.project-tile-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.project-tile-img .media-cover,
.project-tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-tile:hover .project-tile-img img,
.project-tile:hover .project-tile-img .media-cover {
  transform: scale(1.03);
}

.project-tile-body {
  padding: 0.85rem 1rem;
}

.project-tile-body h3 {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.2rem;
  color: var(--ink);
}

.project-tile-body p {
  font-size: 0.75rem;
  color: var(--ink-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Shelf compact ───────────────────────────────────────────────────────── */
.shelf-compact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-lg);
}

.shelf-col h4 {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.shelf-col h4 a { color: var(--accent); }

.shelf-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.shelf-list a {
  display: block;
  font-size: 0.8125rem;
  color: var(--ink-secondary);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.35;
  transition: color var(--transition);
}

.shelf-list a:hover { color: var(--accent); }

.shelf-list a strong {
  display: block;
  font-weight: 600;
  color: var(--ink);
  font-size: 0.8125rem;
}

.shelf-list a span {
  font-size: 0.6875rem;
  color: var(--ink-muted);
}

/* ─── Page Shell (sub-pages) ──────────────────────────────────────────────── */
.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.page-shell-header {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  margin-bottom: 2rem;
  box-shadow: none;
  backdrop-filter: none;
}

.page-shell-header h1 {
  font-family: var(--font-display) !important;
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 0.5rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.page-shell-header p {
  color: var(--ink-tertiary);
  font-size: 1rem;
  max-width: var(--max-prose);
  line-height: 1.65;
}

.page-shell-meta {
  font-size: 0.6875rem;
  color: var(--ink-muted);
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* ─── Page Hero ───────────────────────────────────────────────────────────── */
.page-hero {
  padding: 4rem 2rem 2.5rem !important;
  max-width: var(--max-width) !important;
  margin: 0 auto !important;
  text-align: left !important;
  background: transparent !important;
  min-height: auto !important;
}

.page-hero--with-image {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-soft) 50%, var(--slate) 100%) !important;
  max-width: none !important;
  padding: 5rem 2rem 4rem !important;
  margin-bottom: 1.5rem !important;
  overflow: hidden;
}

.page-hero--with-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(37, 99, 235, 0.15), transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(201, 169, 110, 0.08), transparent 50%);
  pointer-events: none;
}

.page-hero--with-image .page-hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-hero--with-image h1 {
  color: #FFFFFF !important;
  font-size: clamp(2.5rem, 5vw, 3.5rem) !important;
}

.page-hero--with-image p {
  color: rgba(255, 255, 255, 0.75) !important;
  max-width: 32rem;
}

.page-hero h1 {
  font-family: var(--font-display) !important;
  font-size: clamp(2.25rem, 4vw, 3rem) !important;
  margin-bottom: 0.5rem !important;
  color: var(--ink) !important;
}

.page-hero p {
  color: var(--ink-tertiary) !important;
  font-size: 1rem !important;
  max-width: var(--max-prose);
  line-height: 1.65;
}

.page-hero .hero-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
}

.page-hero .hero-eyebrow a { color: var(--accent); }

/* ─── Filter Tabs ─────────────────────────────────────────────────────────── */
.filter-tabs {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0;
  background: transparent;
  border: none;
  margin-bottom: 1.5rem;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.filter-tab {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: 8px !important;
  border: 1px solid transparent !important;
  background: transparent !important;
  color: var(--ink-tertiary) !important;
  transition: all var(--transition);
}

.filter-tab:hover {
  background: rgba(0, 0, 0, 0.04) !important;
  color: var(--ink) !important;
}

.filter-tab.active {
  background: var(--ink) !important;
  color: #fff !important;
  border-color: var(--ink) !important;
  font-weight: 600;
}

/* ─── Activity Magazine Grid ──────────────────────────────────────────────── */
.activity-magazine {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: var(--gap) !important;
}

.activity-magazine-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.activity-magazine-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.activity-magazine-link {
  display: flex;
  flex-direction: column;
  flex: 1;
  color: inherit;
}

.activity-magazine-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.activity-magazine-img .media-cover,
.activity-magazine-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.activity-magazine-card:hover .activity-magazine-img img,
.activity-magazine-card:hover .activity-magazine-img .media-cover {
  transform: scale(1.04);
}

.activity-magazine-body {
  padding: 0.85rem 1rem 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.activity-magazine-body h2 {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 0.3rem 0;
  color: var(--ink);
}

.activity-magazine-body .activity-excerpt {
  font-size: 0.75rem;
  color: var(--ink-muted);
  line-height: 1.5;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.activity-magazine-in {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  background: #0A66C2;
  color: white;
  font-size: 0.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* ─── Writings Masonry (smaller) ──────────────────────────────────────────── */
body.public-body .writings-masonry {
  grid-template-columns: repeat(3, 1fr) !important;
  gap: var(--gap) !important;
  padding: 0 2rem 5rem !important;
}

body.public-body .masonry-card {
  border-radius: var(--radius-lg) !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  box-shadow: none !important;
}

body.public-body .masonry-card:hover {
  transform: translateY(-3px) !important;
  box-shadow: var(--shadow-lg) !important;
}

body.public-body .masonry-card-image-wrap {
  border-radius: 0 !important;
}

body.public-body .masonry-card-image,
body.public-body .masonry-card-image-wrap img {
  height: 160px !important;
}

body.public-body .masonry-card-body {
  padding: 1rem 1.1rem !important;
}

body.public-body .masonry-card-body h2 {
  font-size: 0.9375rem !important;
  font-family: var(--font-body) !important;
  font-weight: 600 !important;
  color: var(--ink) !important;
}

body.public-body .masonry-card-body p {
  font-size: 0.8125rem !important;
  color: var(--ink-tertiary) !important;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

body.public-body .masonry-date {
  color: var(--ink-muted) !important;
}

/* ─── PopSci Grid (smaller) ───────────────────────────────────────────────── */
body.public-body .popsci-grid {
  grid-template-columns: repeat(3, 1fr) !important;
  gap: var(--gap) !important;
  padding: 0 2rem 5rem !important;
}

body.public-body .popsci-card {
  border-radius: var(--radius-lg) !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  box-shadow: none !important;
}

body.public-body .popsci-card:hover {
  transform: translateY(-3px) !important;
  box-shadow: var(--shadow-lg) !important;
}

body.public-body .popsci-card-image-wrap img,
body.public-body .popsci-card-image {
  height: 140px !important;
}

body.public-body .popsci-card-body {
  padding: 0.85rem 1rem !important;
}

body.public-body .popsci-card-body h2 {
  font-size: 0.875rem !important;
  font-family: var(--font-body) !important;
  font-weight: 600 !important;
}

body.public-body .popsci-card-body p {
  font-size: 0.75rem !important;
}

/* ─── Journalism cards ────────────────────────────────────────────────────── */
body.public-body .journalism-home-grid,
body.public-body .journalism-grid {
  grid-template-columns: repeat(2, 1fr) !important;
  gap: var(--gap) !important;
}

body.public-body .journalism-card,
body.public-body .journalism-home-card a {
  border-radius: var(--radius-lg) !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
}

body.public-body .journalism-home-image,
body.public-body .journalism-card-image {
  height: 140px !important;
  border-radius: 0 !important;
}

/* ─── Article cards (articles-read, etc.) ─────────────────────────────────── */
body.public-body .article-card {
  border-radius: var(--radius-lg) !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
}

body.public-body .article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md) !important;
}

/* ─── Writing card (list) ─────────────────────────────────────────────────── */
body.public-body .writing-card {
  border: none !important;
  padding: 1.25rem 0 !important;
  background: transparent !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
  border-bottom: 1px solid var(--border) !important;
  border-radius: 0 !important;
}

body.public-body .writing-card-image {
  width: 120px !important;
  min-height: 80px !important;
  border-radius: var(--radius) !important;
}

/* ─── Hero sections (single pages) ────────────────────────────────────────── */
body.public-body .journalism-hero,
body.public-body .writing-hero,
body.public-body .activity-hero,
body.public-body .travel-hero,
body.public-body .idea-hero {
  border-radius: 0 !important;
  margin: 0 !important;
  max-width: none !important;
}

/* ─── Media Cover (img) ───────────────────────────────────────────────────── */
img.media-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background-color: var(--bg-warm);
}

img.media-cover.media-cover--broken,
.media-cover--broken {
  background: var(--bg-warm) !important;
  min-height: 100%;
}

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  margin-top: 2rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-content p {
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-tertiary);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--ink); }

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav-links { gap: 0.55rem !important; }
  .nav-links a { font-size: 0.65rem !important; }
  .dash-hero { grid-template-columns: 1fr; gap: 2rem; }
  .dash-hero-media { order: -1; max-height: 260px; }
  .dash-row--2,
  .dash-row--2-1,
  .dash-row--3 { grid-template-columns: 1fr; }
  .project-strip { grid-template-columns: repeat(2, 1fr); }
  .activity-magazine { grid-template-columns: repeat(2, 1fr); }
  .shelf-compact { grid-template-columns: 1fr 1fr; }
  .tile-grid--2 { flex-direction: column; }
  body.public-body .writings-masonry { grid-template-columns: repeat(2, 1fr) !important; }
  body.public-body .popsci-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 768px) {
  /* ─── Mobile nav ─────────────────────────────────────────────────────── */
  .nav-toggle {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    padding: 6px;
    transition: background 0.2s ease;
  }

  .nav-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink, #111);
    border-radius: 2px;
    transition: all 0.25s ease;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
  }

  [data-theme="dark"] .nav-toggle span {
    background: var(--ink, #F5F5F7);
  }

  [data-theme="dark"] .nav-toggle:hover {
    background: rgba(255, 255, 255, 0.06);
  }

  .nav-links {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface, #fff) !important;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 0.75rem 1.25rem 1rem;
    gap: 0.25rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    z-index: 100;
  }

  .nav-links.open {
    display: flex !important;
  }

  [data-theme="dark"] .nav-links {
    background: rgba(15, 15, 15, 0.97) !important;
    border-bottom-color: rgba(255, 255, 255, 0.06);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }

  .nav-links a {
    padding: 0.6rem 0.75rem !important;
    border-radius: 8px;
    font-size: 0.88rem !important;
  }

  .nav-links a:hover,
  .nav-links a.active {
    background: rgba(0, 0, 0, 0.04) !important;
  }

  [data-theme="dark"] .nav-links a:hover,
  [data-theme="dark"] .nav-links a.active {
    background: rgba(255, 255, 255, 0.06) !important;
  }

  .nav-links .nav-divider {
    display: none !important;
  }

  .nav-links a::after {
    display: none !important;
  }

  .theme-toggle {
    order: 2;
  }

  .nav-toggle {
    order: 3;
  }
}

@media (max-width: 640px) {
  .public-main.dashboard-main { padding: 0 1rem 3rem; }
  .dash-hero { padding: 2rem 0; min-height: auto; }
  .project-strip,
  .activity-magazine,
  .shelf-compact { grid-template-columns: 1fr; }
  .tile { grid-template-columns: 40px 1fr; gap: 0.6rem; }
  .tile-thumb { width: 40px; height: 40px; border-radius: 8px; }
  .tile-title { font-size: 0.8125rem; }
  .dash-hero-actions { flex-direction: column; }
  .dash-hero-actions .btn { width: 100%; justify-content: center; }
  body.public-body .writings-masonry,
  body.public-body .popsci-grid { grid-template-columns: 1fr !important; }
  .page-hero { padding: 2.5rem 1.25rem 2rem !important; }
  .page-hero--with-image { padding: 3rem 1.25rem 2.5rem !important; }
  .page-hero--with-image h1 { font-size: 2rem !important; }
  .filter-tabs { padding-left: 1.25rem; padding-right: 1.25rem; }
  .nav-public { padding: 0.65rem 1rem; }
  .hero-title { font-size: clamp(2rem, 8vw, 2.5rem) !important; }
  .shelf-items { grid-template-columns: 1fr !important; }
}

/* ─── Shelf card links ─────────────────────────────────────────────────────── */
a.shelf-card--link {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: pointer;
}

a.shelf-card--link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

a.shelf-card--link h4 { color: var(--ink); }
a.shelf-card--link:hover h4 { color: var(--accent); }

.shelf-card-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.shelf-quick-link {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-tertiary);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.shelf-quick-link:hover {
  color: var(--ink);
  border-color: var(--border-strong);
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] a.shelf-card--link {
  background: var(--surface) !important;
  border-color: var(--border) !important;
}

[data-theme="dark"] a.shelf-card--link:hover {
  box-shadow: var(--shadow-lg) !important;
  border-color: var(--border-strong) !important;
}

[data-theme="dark"] a.shelf-card--link h4 { color: var(--ink) !important; }
[data-theme="dark"] a.shelf-card--link:hover h4 { color: var(--accent) !important; }

[data-theme="dark"] .shelf-quick-link {
  color: var(--ink-tertiary);
  border-color: var(--border);
}

[data-theme="dark"] .page-hero--with-image {
  background: linear-gradient(135deg, #0A0E17 0%, #111827 50%, #1E293B 100%) !important;
}

/* ─── About page — CV / credentials ───────────────────────────────────────── */
.about-page {
  max-width: var(--max-width, 1100px);
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

.about-lead-inline {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--ink-secondary, var(--text-soft));
  margin-bottom: 0.5rem;
}

.about-credential {
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}

.about-credential:last-of-type {
  border-bottom: none;
}

.about-credential-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.35rem;
}

.about-credential-head h3 {
  font-family: var(--font-heading, 'DM Serif Display', Georgia, serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--ink, var(--text));
  margin: 0;
  letter-spacing: -0.01em;
}

.about-credential-date {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-muted, var(--muted));
  white-space: nowrap;
}

.about-credential-org {
  font-size: 0.88rem;
  color: var(--ink-tertiary, var(--muted));
  margin-bottom: 0.65rem;
}

.about-credential ul,
.about-experience-list {
  margin: 0;
  padding-left: 1.15rem;
}

.about-credential li,
.about-experience-list li {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ink-secondary, var(--text-soft));
  margin-bottom: 0.4rem;
}

.about-experience-list {
  list-style: none;
  padding-left: 0;
}

.about-experience-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.about-experience-list li:last-child {
  border-bottom: none;
}

.about-skill-group-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted, var(--muted));
  font-weight: 600;
  margin: 0.85rem 0 0.45rem;
}

.about-skill-group-label:first-child {
  margin-top: 0;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.skill-tag {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background: var(--accent-soft, rgba(37, 99, 235, 0.08));
  color: var(--accent, #2563EB);
  border: 1px solid transparent;
}

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

.about-lang-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  font-size: 0.88rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

.about-lang-list li:last-child {
  border-bottom: none;
}

.about-lang-list .muted {
  font-weight: 400;
  font-size: 0.78rem;
}

[data-theme="dark"] .about-credential {
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .about-credential-head h3 {
  color: #F5F5F7 !important;
}

[data-theme="dark"] .about-credential-org,
[data-theme="dark"] .about-credential li,
[data-theme="dark"] .about-experience-list li {
  color: #D1D1D6 !important;
}

[data-theme="dark"] .about-credential-date {
  color: #A1A1A6 !important;
}

[data-theme="dark"] .about-experience-list li {
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .skill-tag {
  background: rgba(91, 163, 245, 0.12) !important;
  color: #5BA3F5 !important;
}

[data-theme="dark"] .about-lang-list li {
  border-bottom-color: rgba(255, 255, 255, 0.06);
  color: #F5F5F7 !important;
}

[data-theme="dark"] .about-lead-inline {
  color: #D1D1D6 !important;
}

@media (max-width: 768px) {
  .about-page { padding: 0 1.25rem 3rem; }
  .about-credential-head { flex-direction: column; gap: 0.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  .project-tile:hover,
  .activity-magazine-card:hover,
  .masonry-card:hover,
  .popsci-card:hover { transform: none !important; }
}