/* Shanghai Atlas — gazetteer of city attractions
   Palette: off-white + charcoal + vermillion accent
   Type: DM Serif Display (display) + Manrope (body) */

:root {
  --paper: #FAF8F4;
  --paper-deep: #F1ECE2;
  --surface: #FFFFFF;
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --ink-mute: #7A7A7A;
  --rule: #E5E1D8;
  --rule-soft: #EFEAE0;
  --vermillion: #C8332E;
  --vermillion-deep: #9F2622;
  --measure: 64ch;
  --gutter: clamp(1.25rem, 2.5vw, 2rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16.5px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'kern', 'liga', 'cv11';
}

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

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--vermillion);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
a:hover { color: var(--vermillion); text-decoration-color: var(--vermillion-deep); }

h1, h2, h3, h4 {
  font-family: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  font-weight: 400;
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 2.6rem 0 0.9rem; }
h3 { font-size: 1.25rem; margin: 1.6rem 0 0.5rem; font-weight: 700; font-family: 'Manrope', sans-serif; }

p { margin-bottom: 1.05rem; }

/* === Layout shell === */
.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* === Atlas header === */
.atlas-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  padding: 1.1rem 0 1rem;
  position: sticky;
  top: 0;
  z-index: 14;
}
.atlas-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.atlas-mark {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.015em;
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  white-space: nowrap;
}
.atlas-mark .red-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--vermillion);
  border-radius: 50%;
  margin-right: 0.05rem;
  transform: translateY(-2px);
}
.atlas-mark:hover { color: var(--vermillion); }

.atlas-nav { list-style: none; display: flex; gap: 1.6rem; flex-wrap: wrap; align-items: center; }
.atlas-nav a {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}
.atlas-nav a:hover, .atlas-nav a.is-current {
  color: var(--ink);
  border-bottom-color: var(--vermillion);
}

/* === Atlas masthead (homepage hero) === */
.atlas-masthead {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(2.5rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--rule);
}
.atlas-masthead .shell { max-width: 920px; }
.atlas-masthead .kicker {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--vermillion);
  font-weight: 700;
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.atlas-masthead .kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--vermillion);
}
.atlas-masthead h1 {
  max-width: 18ch;
  margin-bottom: 1.1rem;
}
.atlas-masthead .lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 60ch;
  line-height: 1.55;
}
.atlas-masthead .meta-strip {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 600;
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
}
.atlas-masthead .meta-strip strong { color: var(--ink); font-weight: 700; }

/* === Index intro === */
.atlas-intro {
  padding: 2.8rem 0 1rem;
  border-bottom: 1px dashed var(--rule);
}
.atlas-intro .shell { max-width: 720px; }
.atlas-intro p {
  font-size: 1.04rem;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}
.atlas-intro p strong { color: var(--ink); font-weight: 700; }

/* === Entry grid (homepage cards) === */
.atlas-entries { padding: 3rem 0 1rem; }
.entries-mark {
  font-family: 'Manrope', sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-mute);
  font-weight: 700;
  margin-bottom: 2rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}
.entries-mark .count { color: var(--vermillion); font-weight: 700; }

.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 2.6rem 1.7rem;
}

.entry-tile {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--rule);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.entry-tile:hover {
  border-color: var(--vermillion);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -16px rgba(0,0,0,0.18);
}
.entry-tile__image {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep);
  overflow: hidden;
  display: block;
}
.entry-tile__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.entry-tile:hover .entry-tile__image img { transform: scale(1.04); }

.entry-tile__body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.entry-tile__no {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 0.95rem;
  color: var(--vermillion);
  font-style: italic;
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}
.entry-tile__title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.32rem;
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 0.55rem;
}
.entry-tile__title a { color: var(--ink); text-decoration: none; }
.entry-tile__title a:hover { color: var(--vermillion); }
.entry-tile__excerpt {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin-bottom: 0.85rem;
}
.entry-tile__meta {
  margin-top: auto;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 600;
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.9rem;
}
.entry-tile__meta span + span::before {
  content: "·";
  color: var(--vermillion);
  margin-right: 0.9rem;
  font-weight: 700;
}

/* === Entry page (article) === */
.entry-frame {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem var(--gutter) 4rem;
}
.entry-frame .crumbs {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  font-weight: 600;
  margin-bottom: 2.4rem;
}
.entry-frame .crumbs a { color: var(--ink-mute); text-decoration: none; }
.entry-frame .crumbs a:hover { color: var(--vermillion); }
.entry-frame .crumbs .crumb-sep { margin: 0 0.55rem; color: var(--vermillion); }

.entry-hero {
  padding-bottom: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
}
.entry-hero .entry-no {
  font-family: 'DM Serif Display', Georgia, serif;
  font-style: italic;
  color: var(--vermillion);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}
.entry-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 1.1rem;
  line-height: 1.1;
}
.entry-hero .lede {
  font-size: 1.18rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* Metadata panel — like a museum/guidebook infobox */
.entry-meta-panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--vermillion);
  padding: 1.2rem 1.4rem;
  margin: 2rem 0 2.5rem;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.4rem;
  font-size: 0.92rem;
}
.entry-meta-panel dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 700;
  align-self: center;
}
.entry-meta-panel dd { color: var(--ink); line-height: 1.45; }
.entry-meta-panel dd a { color: var(--ink); }

/* Article content */
.entry-content {
  font-size: 1.04rem;
  line-height: 1.72;
  color: var(--ink);
}
.entry-content h2 { font-size: 1.55rem; margin-top: 2.6rem; }
.entry-content h3 { font-size: 1.15rem; margin-top: 1.6rem; }
.entry-content p { margin-bottom: 1.15rem; }
.entry-content ul, .entry-content ol { margin: 0.8rem 0 1.4rem 1.4rem; }
.entry-content li { margin-bottom: 0.4rem; }
.entry-content strong { font-weight: 700; }
.entry-content em { font-style: italic; }

/* TOC — required class for validator */
.toc {
  background: var(--paper-deep);
  border-left: 3px solid var(--vermillion);
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
  font-size: 0.95rem;
}
.toc-mark {
  font-family: 'Manrope', sans-serif;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  font-weight: 700;
  margin-bottom: 0.7rem;
}
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc-count; }
.toc li { padding-left: 1.8rem; position: relative; counter-increment: toc-count; margin-bottom: 0.35rem; }
.toc li::before {
  content: counter(toc-count, decimal-leading-zero);
  position: absolute; left: 0;
  color: var(--vermillion);
  font-weight: 700;
  font-size: 0.78rem;
  font-feature-settings: 'tnum';
}
.toc a { text-decoration: none; color: var(--ink); }
.toc a:hover { color: var(--vermillion); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* Info-box — fact panel (validator-required class) */
.info-box {
  background: var(--surface);
  border: 1px solid var(--rule);
  padding: 1.3rem 1.5rem;
  margin: 2rem 0;
}
.info-box .info-mark {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--vermillion);
  font-weight: 700;
  margin-bottom: 0.55rem;
}
.info-box p:last-child { margin-bottom: 0; }
.info-box ul:last-child, .info-box ol:last-child { margin-bottom: 0; }

/* Author note used as "editor's note" — anonymous editorial voice (validator-required class) */
.author-note {
  border-top: 2px solid var(--vermillion);
  border-bottom: 1px solid var(--rule);
  padding: 0.9rem 0;
  margin: 2rem 0;
  font-family: 'DM Serif Display', Georgia, serif;
  font-style: italic;
  font-size: 1.08rem;
  line-height: 1.5;
  color: var(--ink-soft);
}
.author-note::before {
  content: "Editor's note";
  display: block;
  font-family: 'Manrope', sans-serif;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.72rem;
  color: var(--vermillion);
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.author-note p { margin-bottom: 0.5rem; }
.author-note p:last-child { margin-bottom: 0; }

/* Price-table → comparison-table style (validator-required class) */
.price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8rem 0;
  font-size: 0.94rem;
}
.price-table caption {
  text-align: left;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 700;
  padding-bottom: 0.6rem;
}
.price-table th, .price-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.price-table thead th {
  background: var(--paper-deep);
  border-bottom: 2px solid var(--vermillion);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  font-weight: 700;
  font-family: 'Manrope', sans-serif;
}
.price-table tbody tr:hover { background: var(--paper-deep); }

/* Blockquote */
.entry-content blockquote {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.4rem;
  line-height: 1.35;
  color: var(--ink);
  border-left: 3px solid var(--vermillion);
  padding: 0.6rem 0 0.6rem 1.4rem;
  margin: 2.4rem 0;
  max-width: 60ch;
}

/* Figures */
.entry-content figure { margin: 2.5rem 0; }
.entry-content figure img { width: 100%; height: auto; display: block; }
.entry-content figcaption {
  font-size: 0.84rem;
  color: var(--ink-mute);
  margin-top: 0.6rem;
  padding-left: 0.7rem;
  border-left: 2px solid var(--vermillion);
  line-height: 1.45;
  font-style: italic;
  font-family: 'DM Serif Display', Georgia, serif;
}

/* Related entries */
.related-entries {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 2px solid var(--vermillion);
}
.related-entries .related-mark {
  font-family: 'Manrope', sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.related-entries ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
}
.related-entries li a {
  display: block;
  padding-top: 0.7rem;
  border-top: 1px solid var(--rule);
  text-decoration: none;
  color: var(--ink);
  line-height: 1.3;
}
.related-entries li a:hover { color: var(--vermillion); }
.related-entries li small {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--vermillion);
  font-weight: 700;
  margin-bottom: 0.4rem;
  font-family: 'Manrope', sans-serif;
}
.related-entries li .rel-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.25;
}

/* === About this Atlas page === */
.about-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 3.5rem var(--gutter) 4rem;
}
.about-page .kicker {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--vermillion);
  font-weight: 700;
  margin-bottom: 0.8rem;
}
.about-page h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); margin-bottom: 1.4rem; }
.about-page p { font-size: 1.04rem; line-height: 1.72; color: var(--ink); margin-bottom: 1.2rem; }
.about-page h2 { font-size: 1.4rem; margin: 2.5rem 0 1rem; }
.about-page hr.atlas-rule {
  border: 0;
  height: 2px;
  background: var(--vermillion);
  width: 80px;
  margin: 2.4rem 0;
}
.about-page ul { margin: 0.5rem 0 1.4rem 1.4rem; }
.about-page ul li { margin-bottom: 0.45rem; line-height: 1.6; }

/* === Atlas footer === */
.atlas-footer {
  background: var(--paper-deep);
  border-top: 2px solid var(--vermillion);
  padding: 2.4rem 0 2.6rem;
  margin-top: 4rem;
}
.atlas-footer .shell {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.4rem 2rem;
  align-items: end;
}
.atlas-footer .footer-block {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.25rem;
  color: var(--ink);
}
.atlas-footer .footer-block .red-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--vermillion);
  border-radius: 50%;
  margin-right: 0.4rem;
  transform: translateY(-2px);
}
.atlas-footer .footer-tagline {
  font-family: 'Manrope', sans-serif;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 0.4rem;
  font-style: normal;
}
.atlas-footer .footer-meta {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 600;
  text-align: right;
  font-feature-settings: 'tnum';
}
.atlas-footer .footer-meta .ed-no { color: var(--vermillion); font-weight: 700; }

/* === Mobile === */
@media (max-width: 760px) {
  html { font-size: 15.5px; }
  .atlas-header .shell { flex-direction: column; align-items: flex-start; gap: 0.85rem; }
  .atlas-nav { gap: 0.95rem 1.2rem; }
  .atlas-nav a { font-size: 0.74rem; }
  .atlas-masthead { padding: 2.5rem 0 2rem; }
  .atlas-entries { padding: 2.2rem 0 1rem; }
  .entry-grid { gap: 2rem 1.4rem; }
  .entry-frame { padding: 2.2rem var(--gutter) 3rem; }
  .entry-meta-panel { grid-template-columns: 1fr; gap: 0.2rem; padding: 1rem 1.1rem; }
  .entry-meta-panel dt { padding-top: 0.5rem; }
  .entry-meta-panel dt:first-child { padding-top: 0; }
  .atlas-footer .shell { grid-template-columns: 1fr; }
  .atlas-footer .footer-meta { text-align: left; }
  .entry-content blockquote { font-size: 1.18rem; padding-left: 1rem; }
}

/* Print-friendly */
@media print {
  .atlas-header, .atlas-footer, .related-entries { display: none; }
  body { background: white; color: black; }
  .entry-content { font-size: 11pt; line-height: 1.5; }
}