@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --ivory: #f5e6c8;
  --amber: #d4a574;
  --ink: #262117;
  --ink-60: rgba(38,33,23,0.6);
  --ink-20: rgba(38,33,23,0.15);
  --amber-dark: #b8874a;
  --amber-light: #e8c99a;
  --ivory-dark: #e8d4a8;
  --cream: #faf3e0;
  --font-sans: 'IBM Plex Sans', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --radius: 4px;
  --nav-h: 60px;
  --max-w: 1200px;
  --prose-w: 72ch;
  --transition: 0.25s ease;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--amber-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--ink); }
ul, ol { list-style: none; }

/* ===== FILM GRAIN OVERLAY ===== */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23grain)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  animation: grain-move 0.4s steps(1) infinite;
}
@keyframes grain-move {
  0%   { background-position: 0 0; }
  25%  { background-position: -30px 20px; }
  50%  { background-position: 15px -25px; }
  75%  { background-position: -20px 10px; }
  100% { background-position: 5px -10px; }
}

/* ===== NAV ===== */
.site-nav-aside {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ink);
  border-bottom: 2px solid var(--amber);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: var(--nav-h);
}
.brand-icon-link {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
}
.brand-icon { width: 32px; height: 32px; object-fit: contain; }
.brand-icon-text {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--amber);
  line-height: 1;
}
.nav-pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex: 1;
  align-items: center;
}
.nav-pill-group li { display: flex; }
.nav-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1.5px solid var(--amber-dark);
  color: var(--ivory);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  min-height: 40px;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.nav-pill:hover, .nav-pill.active {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
}
.nav-cta-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.25rem;
  background: var(--amber);
  color: var(--ink);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  min-height: 40px;
  border: 2px solid var(--amber);
  transition: background var(--transition), border-color var(--transition);
}
.nav-cta-btn:hover {
  background: var(--amber-dark);
  border-color: var(--amber-dark);
  color: var(--ivory);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  min-height: 60vh;
}

/* ===== HERO (home) ===== */
.hero-section {
  position: relative;
  min-height: 45vh;
  background: var(--ink);
  overflow: hidden;
  display: flex;
  align-items: stretch;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 2rem 5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  justify-content: center;
  width: 100%;
}
.hero-eyebrow .mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  text-transform: uppercase;
  background: rgba(212,165,116,0.12);
  padding: 0.2em 0.7em;
  border: 1px solid var(--amber-dark);
  border-radius: var(--radius);
}
.hero-h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--ivory);
  line-height: 1.2;
  max-width: 28ch;
  font-family: var(--font-sans);
}
.hero-lead {
  color: var(--ivory-dark);
  font-size: 1.05rem;
  max-width: 56ch;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.hero-oblique {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--ivory);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  z-index: 3;
}
.light-leak {
  position: absolute;
  top: -40%;
  right: -10%;
  width: 55%;
  height: 200%;
  background: radial-gradient(ellipse at 70% 30%, rgba(212,165,116,0.18) 0%, transparent 65%),
              radial-gradient(ellipse at 90% 80%, rgba(245,230,200,0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
  animation: light-leak-pulse 6s ease-in-out infinite alternate;
}
@keyframes light-leak-pulse {
  0%   { opacity: 0.6; transform: translateX(0); }
  100% { opacity: 1;   transform: translateX(-3%); }
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  background: var(--amber);
  color: var(--ink);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 2px solid var(--amber);
  min-height: 44px;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.btn-primary:hover {
  background: var(--amber-dark);
  border-color: var(--amber-dark);
  color: var(--ivory);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  background: transparent;
  color: var(--ivory);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 2px solid rgba(245,230,200,0.45);
  min-height: 44px;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.btn-secondary:hover {
  border-color: var(--amber);
  background: rgba(212,165,116,0.15);
  color: var(--amber);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.35rem;
  border: 2px solid var(--amber-dark);
  color: var(--ink);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  min-height: 40px;
  transition: background var(--transition), color var(--transition);
}
.btn-outline:hover {
  background: var(--amber);
  color: var(--ink);
}

/* ===== CONTENT LAYOUT (2-col with sidebar) ===== */
.content-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}
.content-figure {
  min-width: 0;
}
.prose-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: var(--prose-w);
}
.prose-content h2, .prose-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--ink);
}
.prose-content h2 { font-size: 1.3rem; }
.prose-content h3 { font-size: 1.1rem; }
.prose-content p { margin-bottom: 1.1rem; }
.prose-content ul, .prose-content ol {
  margin: 0.75rem 0 1.1rem 1.5rem;
  list-style: disc;
}
.prose-content ol { list-style: decimal; }
.prose-content li { margin-bottom: 0.4rem; }
.prose-content a { color: var(--amber-dark); border-bottom: 1px dotted var(--amber); }
.prose-content a:hover { color: var(--ink); }
.prose-content strong { font-weight: 600; }
.prose-content blockquote {
  border-left: 3px solid var(--amber);
  padding-left: 1.1rem;
  color: var(--ink-60);
  font-style: italic;
  margin: 1.25rem 0;
}
.prose-content table { border-collapse: collapse; width: 100%; margin: 1.25rem 0; }
.prose-content th, .prose-content td {
  border: 1px solid var(--amber-light);
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-size: 0.9rem;
}
.prose-content th { background: var(--ivory-dark); font-weight: 600; }

/* ===== SIDEBAR ===== */
.sidebar-right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: calc(var(--nav-h) + 1.5rem);
}
.sidebar-block {
  background: var(--cream);
  border: 1.5px solid var(--amber-light);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.sidebar-h2, .sidebar-h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--ink);
  font-family: var(--font-sans);
}
.sidebar-links li { margin-bottom: 0.45rem; }
.sidebar-links a {
  font-size: 0.88rem;
  color: var(--ink);
  border-bottom: 1px dotted var(--amber-light);
  display: inline-block;
  padding-bottom: 0.1em;
}
.sidebar-links a:hover { color: var(--amber-dark); border-color: var(--amber-dark); }
.sidebar-cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.84rem;
  font-family: var(--font-mono);
  color: var(--amber-dark);
  font-weight: 600;
}
.sidebar-cta:hover { color: var(--ink); }
.sidebar-note {
  font-size: 0.85rem;
  color: var(--ink-60);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

/* ===== EYEBROW / SMALL ===== */
.eyebrow-small, small.eyebrow-small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--amber-dark);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

/* ===== SECTION TITLES ===== */
.section-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1.5rem;
  font-family: var(--font-sans);
}

/* ===== BLOCK CARD GRID (category cards) ===== */
.cats-section, .entries-section, .children-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--ivory-dark);
}
.block-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.1rem;
}
.block-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.25rem;
  background: var(--cream);
  border: 1.5px solid var(--amber-light);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.block-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--amber);
}
.block-card:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
}
.block-card strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  display: block;
}
.block-card .card-meta {
  font-size: 0.82rem;
  color: var(--ink-60);
  line-height: 1.5;
  display: block;
}
.block-card .card-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-dark);
  margin-top: auto;
  display: block;
}

/* ===== VHS ENTRY CARD ===== */
.entry-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.entry-card.vhs-card {
  background: var(--cream);
  border: 1.5px solid var(--amber-light);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.entry-card.vhs-card:hover {
  border-color: var(--amber);
  box-shadow: 0 0 0 2px rgba(212,165,116,0.18);
}
.card-tape-strip {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--amber) 0px, var(--amber) 12px,
    var(--amber-dark) 12px, var(--amber-dark) 16px,
    var(--ink) 16px, var(--ink) 20px,
    var(--amber) 20px
  );
  opacity: 0.75;
}
.entry-card h3 {
  font-size: 0.97rem;
  font-weight: 700;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}
.entry-card h3 a {
  color: var(--ink);
}
.entry-card h3 a:hover { color: var(--amber-dark); }
.card-desc {
  font-size: 0.85rem;
  color: var(--ink-60);
  line-height: 1.55;
  margin-bottom: 0.75rem;
}
.card-read-more {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber-dark);
  font-weight: 600;
  display: inline-block;
  margin-top: 0.25rem;
}
.card-read-more:hover { color: var(--ink); }
.section-more {
  margin-top: 1.75rem;
  text-align: center;
}

/* ===== DATES ===== */
.entry-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-60);
  letter-spacing: 0.04em;
  display: inline-block;
}
.date-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-dark);
}
.entry-dates {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

/* ===== PAGE HEADERS ===== */
.page-header-section, .privacy-header-section, .about-header-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2rem;
  align-items: start;
}
.page-header-fig, .privacy-header-fig, .about-polaroid-fig, .entry-hero-fig {
  min-width: 0;
}
.page-header-inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-header-aside, .privacy-nav-aside, .about-intro-aside {
  position: sticky;
  top: calc(var(--nav-h) + 1rem);
}
.page-lead {
  font-size: 1rem;
  color: var(--ink-60);
  line-height: 1.7;
  max-width: 60ch;
  margin-top: 0.5rem;
}

/* ===== BREADCRUMB ===== */
.breadcrumb-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--ink-60);
  margin-bottom: 0.75rem;
}
.breadcrumb-bar a { color: var(--amber-dark); }
.breadcrumb-bar a:hover { color: var(--ink); }
.bc-sep { color: var(--ink-60); }

/* ===== ENTRY LAYOUT ===== */
.entry-header-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  align-items: start;
}
.entry-hero-fig {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
  min-height: 180px;
}
.entry-hero-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  opacity: 0.85;
  filter: sepia(0.25) contrast(1.05) saturate(0.85);
}
.vhs-tracking-bar {
  position: absolute;
  bottom: 12%;
  left: 0; right: 0;
  height: 3px;
  background: rgba(245,230,200,0.35);
  animation: vhs-track 7s linear infinite;
}
@keyframes vhs-track {
  0%   { bottom: 100%; opacity: 0; }
  5%   { opacity: 0.7; }
  95%  { opacity: 0.5; }
  100% { bottom: -5%; opacity: 0; }
}
.entry-meta-aside {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.entry-cta { margin-top: 0.5rem; align-self: flex-start; }
.entry-header-section .page-header-aside {
  display: none;
}

/* ===== RELATED LINKS ===== */
.related-links-stack {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.related-block-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.65rem 0.75rem;
  border: 1.5px solid var(--amber-light);
  border-radius: var(--radius);
  background: var(--ivory);
  transition: border-color var(--transition), background var(--transition);
}
.related-block-link:hover {
  border-color: var(--amber);
  background: var(--cream);
}
.related-block-link strong {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink);
  display: block;
}
.related-block-link span {
  font-size: 0.78rem;
  color: var(--ink-60);
  display: block;
  line-height: 1.4;
}

/* ===== ABOUT POLAROID ===== */
.about-polaroid-fig {
  display: flex;
  align-items: flex-start;
}
.polaroid-inner {
  width: 100%;
}
.polaroid-frame {
  background: var(--cream);
  border: 2px solid var(--amber-light);
  border-bottom-width: 40px;
  border-radius: var(--radius);
  padding: 1.5rem;
  min-height: 180px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  position: relative;
  box-shadow: 3px 3px 0 var(--amber-light);
  transform: rotate(-1.5deg);
  background-image: radial-gradient(circle at 80% 20%, rgba(212,165,116,0.18) 0%, transparent 50%);
}
.polaroid-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--amber-dark);
  text-transform: uppercase;
  position: absolute;
  bottom: -28px;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--ink);
  color: var(--ivory);
  margin-top: 3rem;
  border-top: 3px solid var(--amber);
}
.footer-cta-band {
  background: var(--amber);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 100%;
}
.footer-cta-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  font-family: var(--font-sans);
}
.footer-main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.footer-icon { width: 28px; height: 28px; object-fit: contain; }
.footer-icon-text {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--amber);
}
.footer-brand-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.06em;
}
.footer-desc {
  font-size: 0.85rem;
  color: rgba(245,230,200,0.65);
  line-height: 1.65;
  max-width: 45ch;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-nav-list li { margin-bottom: 0.5rem; }
.footer-nav-list a {
  font-size: 0.85rem;
  color: rgba(245,230,200,0.75);
  transition: color var(--transition);
}
.footer-nav-list a:hover { color: var(--amber); }
.footer-bottom {
  border-top: 1px solid rgba(212,165,116,0.25);
  padding: 1.1rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.copyright {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(245,230,200,0.45);
  letter-spacing: 0.04em;
}
.footer-policy-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(245,230,200,0.5);
  letter-spacing: 0.04em;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.footer-policy-link:hover { color: var(--amber); }

/* footer div structure compliance */
.footer-main > div { /* inherits footer-brand, footer-links */ }

/* ===== SCROLL REVEAL ===== */
.reveal-section, .reveal-item {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal-section.visible, .reveal-item.visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal-section, .reveal-item,
  .grain-overlay, .light-leak, .vhs-tracking-bar {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .content-section, .page-header-section, .entry-header-section,
  .privacy-header-section, .about-header-section {
    grid-template-columns: 1fr;
  }
  .sidebar-right { position: static; }
  .footer-main { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 680px) {
  :root { --nav-h: 56px; }
  .main-nav { padding: 0 0.75rem; gap: 0.4rem; }
  .nav-pill-group {
    display: none;
  }
  .hero-h1 { font-size: 1.5rem; }
  .hero-inner { padding: 2rem 1rem 4rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .entry-card-grid { grid-template-columns: 1fr; }
  .block-card-grid { grid-template-columns: 1fr 1fr; }
  .footer-cta-band { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .cats-section, .entries-section, .children-section {
    padding: 1.75rem 1rem;
  }
  .content-section { padding: 2rem 1rem; }
  .page-header-section, .entry-header-section,
  .privacy-header-section, .about-header-section { padding: 1.75rem 1rem; }
}

@media (max-width: 480px) {
  .block-card-grid { grid-template-columns: 1fr; }
  .polaroid-frame { transform: none; }
}

/* ===== NAV MOBILE TOGGLE OVERRIDE ===== */
@media (max-width: 680px) {
  .nav-pill-group.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--ink); border-top: 1px solid var(--amber); padding: 0.75rem; z-index: 200; }
  .nav-mobile-toggle { display: flex; }
}
.nav-mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: 1.5px solid var(--amber-dark);
  border-radius: var(--radius);
  color: var(--ivory);
  font-size: 1.1rem;
  cursor: pointer;
  font-family: var(--font-mono);
  min-height: 40px;
}

/* ===== SEPIA / FILTER on images ===== */
.content-figure img {
  filter: sepia(0.15) contrast(1.03) saturate(0.88);
  border-radius: var(--radius);
}

/* ===== h1 on page ===== */
main h1 {
  font-size: clamp(1.4rem, 3.5vw, 2.1rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}