/* ==========================================================================
   Timeline Treasures — design system
   A quiet museum-catalogue language: warm paper, ink, one terracotta accent,
   a single ordinal era ramp (I–IX). Serif for display, system sans for labels.
   Light only, print-friendly: every view is meant to survive on a poster.
   ========================================================================== */

:root {
  /* surfaces + ink */
  --paper: #f7f4ee;
  --paper-deep: #efe9dd;
  --plate: #fdfcf9;
  --ink: #1c1914;
  --ink-2: #57503f;
  --ink-3: #8b8271;
  --line: #e4ddcd;
  --rule: #c9c2b0;
  --accent: #873c00;
  --accent-soft: #9c5006;

  /* era ramp — ordinal, one hue, validated (light end 2.38:1 on paper) */
  --era-1: #db8e58;
  --era-2: #c8783d;
  --era-3: #b26425;
  --era-4: #9c5006;
  --era-5: #873c00;
  --era-6: #712900;
  --era-7: #5b1600;
  --era-8: #450400;
  --era-9: #2e0000;

  /* type */
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;

  --measure: 36rem;
  --pad: clamp(1.25rem, 4.5vw, 4.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

::selection { background: color-mix(in srgb, var(--era-2) 30%, transparent); }

/* ---- small typographic roles ------------------------------------------- */

.kicker {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-2);
}
html:lang(zh-CN) .kicker { letter-spacing: 0.12em; text-transform: none; }
.kicker .sep { color: var(--rule); padding: 0 0.45em; }

.meta {
  font-family: var(--sans);
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--ink-2);
}

.num { font-variant-numeric: tabular-nums; }

hr.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---- navigation ---------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--pad);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease, background 0.4s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }

.nav .wordmark {
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}
.nav .wordmark:hover { color: var(--accent); }

.nav .links {
  display: flex;
  gap: clamp(0.9rem, 2.5vw, 2rem);
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.nav .links a { text-decoration: none; color: var(--ink-2); padding-bottom: 2px; border-bottom: 1px solid transparent; }
.nav .links a:hover { color: var(--accent); }
.nav .links a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
@media (max-width: 560px) {
  .nav { flex-wrap: wrap; justify-content: center; row-gap: 0.35rem; padding-top: 0.7rem; padding-bottom: 0.7rem; }
  .nav .wordmark { font-size: 0.85rem; }
  .nav .links { gap: 1.1rem; font-size: 0.625rem; letter-spacing: 0.15em; }
}

/* ---- hero ----------------------------------------------------------------- */

.hero {
  min-height: 92svh;
  display: grid;
  align-content: center;
  justify-items: center;
  text-align: center;
  padding: calc(var(--pad) + 3.5rem) var(--pad) var(--pad);
  gap: 1.4rem;
}

.hero h1 {
  font-size: clamp(2.6rem, 7.2vw, 6.4rem);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 20ch;
  text-wrap: balance;
}
.hero h1 em { font-style: italic; letter-spacing: 0; }

.hero .lede {
  max-width: var(--measure);
  color: var(--ink-2);
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  text-wrap: balance;
  margin: 0;
}

.hero .down {
  font-family: var(--sans);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-decoration: none;
  margin-top: 1.2rem;
}
.hero .down:hover { color: var(--accent); }

/* ---- the spiral ------------------------------------------------------------ */

.spiral-wrap {
  padding: 1rem var(--pad) 4rem;
  display: grid;
  justify-items: center;
  gap: 2.2rem;
}
.spiral-frame { width: min(94vw, 1040px); position: relative; }
.spiral-frame svg { width: 100%; height: auto; display: block; }

.spiral-tile { cursor: pointer; }
.spiral-tile image { transition: opacity 0.25s ease; }
.spiral-tile:hover image, .spiral-tile:focus-visible image { opacity: 0.78; }
.spiral-tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.spiral-tip {
  position: fixed;
  z-index: 60;
  pointer-events: none;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.75rem;
  line-height: 1.45;
  padding: 0.55rem 0.75rem;
  max-width: 17rem;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.spiral-tip strong { display: block; font-weight: 600; }
.spiral-tip span { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.spiral-tip.on { opacity: 1; }

.spiral-caption { max-width: 46rem; text-align: center; margin: 0; }

.era-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.3rem;
  font-family: var(--sans);
  font-size: 0.6875rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.era-legend a { display: inline-flex; align-items: center; gap: 0.45rem; text-decoration: none; color: var(--ink-2); }
.era-legend a:hover { color: var(--accent); }
.era-legend .sw { width: 11px; height: 11px; background: var(--sw); }

/* ---- section shells --------------------------------------------------------- */

.section { padding: clamp(3rem, 8vh, 6rem) var(--pad); }
.section-inner { max-width: 1480px; margin: 0 auto; }

/* ---- era sections ------------------------------------------------------------ */

.era { border-top: 1px solid var(--line); position: relative; }

.era-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem clamp(1.2rem, 3vw, 2.6rem);
  align-items: baseline;
  margin-bottom: clamp(2rem, 5vh, 3.6rem);
}

.era-head .numeral {
  font-size: clamp(3.6rem, 9vw, 8rem);
  line-height: 0.9;
  color: var(--era-c, var(--accent));
  opacity: 0.26;
  font-weight: 400;
  grid-row: span 2;
  transform: translateY(0.08em);
}

.era-head h2 {
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}

.era-head .era-meta {
  display: grid;
  gap: 0.7rem;
  justify-items: start;
  margin-top: 0.5rem;
}
.era-head .era-meta .sub { text-transform: none; letter-spacing: 0.02em; font-weight: 400; color: var(--ink-3); }

@media (min-width: 1181px) {
  .has-minimap .section-inner { padding-right: 3.4rem; }
}

.era-density { width: min(320px, 100%); height: 26px; }
.era-density line { stroke: var(--era-c, var(--accent)); stroke-width: 2; opacity: 0.5; }
.era-density .axis { stroke: var(--rule); stroke-width: 1; opacity: 1; }

/* featured plate */
.feature {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(16rem, 3fr);
  gap: clamp(1.4rem, 3.5vw, 3.2rem);
  align-items: end;
  margin-bottom: clamp(2.6rem, 6vh, 4.2rem);
}
.feature { cursor: pointer; }
.feature figure, .feature figcaption { margin: 0; }
.feature figcaption { display: grid; gap: 0.8rem; }
.feature .desc { margin: 0; color: var(--ink-2); font-size: 0.95rem; max-width: 30rem; }
.feature .walllabel .t { font-size: 1.55rem; }
.feature img {
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
  object-position: left bottom;
}
@media (max-width: 760px) { .feature { grid-template-columns: 1fr; align-items: start; } }

/* wall label — the standard caption block */
.walllabel { display: grid; gap: 0.32rem; }
.walllabel .n { font-family: var(--sans); font-size: 0.6875rem; letter-spacing: 0.18em; color: var(--ink-3); }
.walllabel .t { font-size: 1.25rem; line-height: 1.25; font-style: italic; }
.walllabel .t a { text-decoration: none; }
.walllabel .t a:hover { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.walllabel .a { font-family: var(--sans); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.02em; }
.walllabel .d { font-family: var(--sans); font-size: 0.75rem; color: var(--ink-2); }
.walllabel .m { font-family: var(--sans); font-size: 0.6875rem; color: var(--ink-3); letter-spacing: 0.04em; }

/* card grid — masonry via columns */
.cards { columns: 4 250px; column-gap: clamp(1.1rem, 2.2vw, 2rem); }
.card {
  break-inside: avoid;
  margin: 0 0 clamp(1.6rem, 3vh, 2.4rem);
  display: grid;
  gap: 0.7rem;
  cursor: pointer;
}
.card .ph { background: var(--paper-deep); }
.card img { width: 100%; height: auto; }
.card:hover img { opacity: 0.88; }
.card .walllabel .t { font-size: 0.98rem; }

/* typographic plate for imageless works */
.card.no-img .ph {
  aspect-ratio: 4 / 5;
  display: grid;
  align-content: end;
  padding: 1rem;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--era-c, var(--accent)) 14%, var(--paper-deep)), var(--paper-deep));
  border-top: 3px solid var(--era-c, var(--accent));
}
.card.no-img .ph .big {
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.3;
  color: var(--ink-2);
  text-wrap: balance;
}
.card.no-img .ph .noimg-note {
  margin-top: 0.6rem;
  font-family: var(--sans);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---- kinds of accomplishment (timeline grouping) ------------------------------- */

.kind-group { margin-bottom: clamp(2rem, 5vh, 3.2rem); }
.kind-head {
  margin: 0 0 1.1rem;
  padding: 0.45rem 0 0.45rem 0.7rem;
  border-left: 3px solid var(--era-c, var(--accent));
  font-weight: 600;
  color: var(--ink);
}
.kind-head .num { color: var(--ink-3); font-weight: 400; }

/* ---- ways of seeing (country × kind matrix) ------------------------------------ */

.ways { border-top: 1px solid var(--rule); }
.ways-scroll { overflow-x: auto; }
.ways-grid { min-width: 940px; padding-right: 4.5rem; }
.ways-row {
  display: grid;
  grid-template-columns: minmax(8.5rem, 12rem) repeat(var(--ways-n, 11), minmax(56px, 1fr)) 6.5rem;
  align-items: center;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  min-height: 3.1rem;
}
a.ways-row:hover { background: color-mix(in srgb, var(--plate) 75%, transparent); }
a.ways-row:hover .ways-country { color: var(--accent); }
.ways-headrow { border-bottom: 1px solid var(--rule); min-height: 6.6rem; align-items: end; }
.ways-country { font-size: 1.15rem; font-style: italic; padding-right: 0.8rem; }
.ways-cell { display: grid; place-items: center; }
.ways-cell .dot { border-radius: 999px; background: var(--accent-soft); opacity: 0.85; }
.ways-collabel {
  font-family: var(--sans);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.ways-collabel { position: relative; }
.ways-collabel span {
  position: absolute;
  bottom: 0.55rem;
  left: 42%;
  transform: rotate(-38deg);
  transform-origin: left bottom;
  white-space: nowrap;
}
.ways-other { font-family: var(--sans); font-size: 0.8125rem; color: var(--ink-2); text-align: right; padding-right: 0.4rem; }
.ways-headrow .ways-other { text-align: right; }

/* ---- country page: how this country sees history -------------------------------- */

.see-profile { display: grid; gap: 0.9rem; max-width: 56rem; margin-top: 0.4rem; }
.see-line { margin: 0; font-size: clamp(1.05rem, 2vw, 1.3rem); font-style: italic; color: var(--ink-2); text-wrap: balance; }
.kind-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.kchip {
  font-family: var(--sans);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  padding: 0.28rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
}
.kchip b { font-weight: 600; color: var(--ink); }

/* ---- same years, different worlds (era bands) --------------------------------- */

.worlds {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 1rem 1.1rem;
  padding: 1rem 0 0.4rem;
  margin-bottom: clamp(2rem, 5vh, 3.2rem);
  border-top: 1px solid var(--line);
}
.worlds-label {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--era-c, var(--accent));
  align-self: center;
  margin-right: 0.8rem;
  line-height: 1.7;
}
.world-tile { display: grid; gap: 0.35rem; text-decoration: none; justify-items: center; }
.world-tile img { width: 74px; height: 74px; object-fit: cover; display: block; }
.world-tile span {
  font-family: var(--sans);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  max-width: 86px;
  text-align: center;
  line-height: 1.45;
}
.world-tile:hover img { opacity: 0.85; }
.world-tile:hover span { color: var(--accent); }

/* meanwhile line on plates + lightbox */
.mw-line {
  margin: 0.5rem 0 0;
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--ink-2);
  border-top: 1px solid var(--line);
  padding-top: 0.7rem;
}
.mw-line a { font-family: var(--serif); font-style: italic; font-size: 0.9rem; }
.mw-line .mw-sub { color: var(--ink-3); padding-left: 0.35em; }

/* ---- meanwhile page: the synchronoptic chart ----------------------------------- */

.moment {
  display: grid;
  grid-template-columns: minmax(11rem, 1fr) minmax(0, 5fr);
  gap: clamp(1.2rem, 3vw, 2.6rem);
  align-items: end;
  margin-bottom: clamp(2.6rem, 7vh, 4.6rem);
}
.moment-year { display: grid; gap: 0.4rem; align-content: end; }
.moment-year .y { font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1; letter-spacing: -0.02em; white-space: nowrap; }
.moment-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: clamp(0.9rem, 2vw, 1.6rem);
  align-items: end;
}
.moment-tile { margin: 0; display: grid; gap: 0.55rem; cursor: pointer; }
.moment-tile img { width: 100%; height: auto; }
.moment-tile:hover img { opacity: 0.88; }
.moment-tile figcaption { display: grid; gap: 0.15rem; }
.moment-tile .t { font-style: italic; font-size: 0.95rem; line-height: 1.3; }
@media (max-width: 760px) { .moment { grid-template-columns: 1fr; align-items: start; } }

.mw-scroll { overflow-x: auto; border-top: 1px solid var(--rule); }
.mw-grid { min-width: 1180px; }
.mw-row {
  display: grid;
  grid-template-columns: var(--mw-cols, 7.5rem repeat(9, minmax(104px, 1fr)));
  border-bottom: 1px solid var(--line);
}
.mw-headrow { border-bottom: 1px solid var(--rule); position: sticky; top: 3.35rem; background: var(--paper); z-index: 2; }
.mw-head {
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 0.7rem 0.6rem 0.6rem 0.35rem;
  line-height: 1.45;
}
.mw-rowlabel {
  position: sticky;
  left: 0;
  background: var(--paper);
  z-index: 1;
  display: grid;
  gap: 0.15rem;
  align-content: start;
  padding: 0.8rem 0.6rem 0.8rem 0;
  border-right: 2px solid var(--era-c, var(--rule));
}
.mw-rowlabel .numeral { font-size: 1.7rem; color: var(--era-c, var(--accent)); opacity: 0.55; line-height: 1; }
.mw-rowlabel .range { font-family: var(--sans); font-size: 0.66rem; letter-spacing: 0.08em; color: var(--ink-2); }
.mw-rowlabel .name { font-family: var(--sans); font-size: 0.66rem; color: var(--ink-3); line-height: 1.4; }
.mw-cell { padding: 0.7rem 0.5rem 0.9rem 0.35rem; display: flex; flex-wrap: wrap; gap: 4px; align-content: flex-start; position: relative; }
.mw-cell.is-empty { background: repeating-linear-gradient(45deg, transparent, transparent 7px, color-mix(in srgb, var(--line) 45%, transparent) 7px, color-mix(in srgb, var(--line) 45%, transparent) 8px); }
.mw-cell-label {
  flex-basis: 100%;
  font-family: var(--sans);
  font-size: 0.575rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: 0.25rem;
}
.mw-tile { width: 44px; height: 44px; cursor: pointer; }
.mw-tile img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mw-tile:hover img, .mw-tile:focus-visible img { opacity: 0.8; }
.mw-tile .bead { display: block; width: 13px; height: 13px; border-radius: 999px; margin: 15px auto; }

/* ---- minimap (index) --------------------------------------------------------- */

.minimap {
  position: fixed;
  right: clamp(0.6rem, 1.6vw, 1.6rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  display: grid;
  gap: 0.55rem;
  justify-items: end;
}
.minimap a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--sans);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.minimap a .tick { width: 14px; height: 2px; background: var(--rule); transition: width 0.25s ease, background 0.25s ease; }
.minimap a:hover .tick { background: var(--accent); }
.minimap a.active { color: var(--ink); }
.minimap a.active .tick { width: 26px; background: var(--era-c, var(--accent)); }
@media (max-width: 1180px) { .minimap { display: none; } }

/* ---- shelf (undated) ---------------------------------------------------------- */

.shelf-note { max-width: var(--measure); color: var(--ink-2); margin: 0 0 2rem; }

/* ---- atlas --------------------------------------------------------------------- */

.atlas-map { width: 100%; height: auto; display: block; }
.atlas-map .land { fill: var(--paper-deep); stroke: var(--rule); stroke-width: 0.4; stroke-opacity: 0.55; }
.atlas-map .grat { fill: none; stroke: var(--ink-3); stroke-width: 0.4; opacity: 0.24; }
.atlas-map .dot { fill: var(--accent-soft); stroke: var(--paper); stroke-width: 2; }
.atlas-map .dot-hit { fill: transparent; cursor: pointer; }
/* paper halo around the glyphs so labels stay legible over land + graticule */
.atlas-map .lbl { font-family: var(--sans); font-size: 11.5px; fill: var(--ink); font-weight: 600;
  paint-order: stroke; stroke: var(--paper); stroke-width: 3px; stroke-linejoin: round; }
.atlas-map .lbl .ct { font-weight: 400; fill: var(--ink-2); }
/* decluttered labels — hidden until their dot is hovered/focused */
.atlas-map .lbl-hover { opacity: 0; transition: opacity 0.12s ease; }
.atlas-map g.site:hover .lbl-hover, .atlas-map g.site:focus-visible .lbl-hover { opacity: 1; }
.atlas-map .leader { stroke: var(--ink-3); stroke-width: 0.6; }
.atlas-map .frame { fill: none; stroke: var(--rule); stroke-width: 1; }
.atlas-map g.site:hover .dot, .atlas-map g.site:focus-visible .dot { fill: var(--accent); }
.atlas-map g.site:hover .lbl, .atlas-map g.site:focus-visible .lbl { fill: var(--accent); }
.atlas-map g.site { cursor: pointer; }
/* on a phone the plate is too short to letter — the dots stay as a spread, the
   table below carries every name (and there is no hover on touch anyway) */
@media (max-width: 760px) { .atlas-map .lbl { display: none; } }

.toc { border-top: 1px solid var(--rule); margin-top: clamp(2.5rem, 6vh, 4rem); }
.toc-row {
  display: grid;
  grid-template-columns: 3.4rem minmax(10rem, 2fr) minmax(12rem, 3fr) 12.5rem minmax(8rem, 1.2fr);
  gap: 1rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.toc-row:hover { background: color-mix(in srgb, var(--plate) 70%, transparent); }
.toc-row .cc { font-family: var(--sans); font-size: 0.6875rem; letter-spacing: 0.18em; color: var(--ink-3); }
.toc-row .country { font-size: 1.35rem; font-style: italic; }
.toc-row:hover .country { color: var(--accent); }
.toc-row .mus { font-family: var(--sans); font-size: 0.8125rem; color: var(--ink-2); }
.toc-row .count { font-family: var(--sans); font-size: 0.8125rem; }
.toc-span { height: 14px; width: 100%; }
.toc-span line { stroke: var(--accent-soft); stroke-width: 1.6; opacity: 0.55; }
.toc-span .axis { stroke: var(--line); stroke-width: 1; opacity: 1; }
@media (max-width: 900px) {
  .toc-row { grid-template-columns: 2.4rem 1fr 6rem; }
  .toc-row .mus, .toc-row .toc-span { display: none; }
}

/* ---- country pages ---------------------------------------------------------------- */

.country-hero {
  min-height: 56svh;
  display: grid;
  align-content: end;
  gap: 1rem;
  padding: calc(var(--pad) + 4rem) var(--pad) clamp(2rem, 5vh, 3.4rem);
  border-bottom: 1px solid var(--rule);
}
.country-hero h1 {
  font-size: clamp(3.2rem, 11vw, 9rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0;
}
.country-hero .sub { display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; align-items: baseline; }
.country-strip { width: min(560px, 92vw); height: 30px; }
.country-strip line { stroke: var(--accent-soft); stroke-width: 2; opacity: 0.55; }
.country-strip .axis { stroke: var(--rule); stroke-width: 1; opacity: 1; }
.country-strip text { font-family: var(--sans); font-size: 9px; fill: var(--ink-3); }

.plates { display: grid; gap: clamp(3.4rem, 9vh, 6.5rem); padding-top: clamp(2.6rem, 7vh, 4.5rem); }

.plate {
  display: grid;
  grid-template-columns: minmax(0, 13fr) minmax(17rem, 7fr);
  gap: clamp(1.4rem, 3.4vw, 3.4rem);
  align-items: end;
}
.plate:nth-child(even) { grid-template-columns: minmax(17rem, 7fr) minmax(0, 13fr); }
.plate:nth-child(even) .plate-fig { order: 2; }
.plate-fig { margin: 0; cursor: zoom-in; }
.plate-fig img { width: 100%; max-height: 84vh; object-fit: contain; object-position: left bottom; }
.plate:nth-child(even) .plate-fig img { object-position: right bottom; }

.plate-label { display: grid; gap: 0.8rem; max-width: 34rem; }
.plate-label .desc { margin: 0.2rem 0 0; color: var(--ink-2); font-size: 0.98rem; }
.plate-quote {
  margin: 0.4rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--era-c, var(--accent));
  font-style: italic;
  color: var(--ink-2);
  font-size: 0.95rem;
}
.plate-quote .q-src { display: block; margin-top: 0.45rem; font-family: var(--sans); font-style: normal; font-size: 0.6875rem; letter-spacing: 0.06em; color: var(--ink-3); }
.plate-quote .q-src a { color: var(--ink-3); }
.plate-quote .q-src a:hover { color: var(--accent); }

.plate.no-img .plate-fig {
  cursor: default;
  align-self: stretch;
  display: grid;
  align-content: end;
  padding: clamp(1.4rem, 3vw, 2.6rem);
  background: linear-gradient(160deg, color-mix(in srgb, var(--era-c, var(--accent)) 13%, var(--paper-deep)), var(--paper-deep));
  border-top: 4px solid var(--era-c, var(--accent));
  min-height: 46vh;
}
.plate.no-img .plate-fig .big {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-style: italic;
  line-height: 1.22;
  color: var(--ink-2);
  text-wrap: balance;
}
.plate.no-img .plate-fig .noimg-note {
  margin-top: 1rem;
  font-family: var(--sans);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

@media (max-width: 820px) {
  .plate, .plate:nth-child(even) { grid-template-columns: 1fr; align-items: start; }
  .plate:nth-child(even) .plate-fig { order: 0; }
}

.pager { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--rule); margin-top: clamp(3rem, 8vh, 5rem); padding-top: 1.2rem; }
.pager a { text-decoration: none; display: grid; gap: 0.2rem; }
.pager a:last-child { text-align: right; }
.pager .where { font-size: 1.3rem; font-style: italic; }

/* ---- catalogue -------------------------------------------------------------------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  padding: 1rem 0 2.2rem;
}
.filters .flabel { font-family: var(--sans); font-size: 0.6875rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin-right: 0.5rem; }
.chip {
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.32rem 0.72rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
}
.chip:hover { border-color: var(--accent-soft); color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.filters .gap { inline-size: 1.2rem; }

.sheet { display: grid; grid-template-columns: repeat(auto-fill, minmax(108px, 1fr)); gap: 10px; }
.cell { position: relative; aspect-ratio: 1; cursor: pointer; background: var(--paper-deep); overflow: hidden; }
.cell img { width: 100%; height: 100%; object-fit: cover; }
.cell .cap {
  position: absolute; inset: auto 0 0 0;
  padding: 1.6rem 0.5rem 0.4rem;
  background: linear-gradient(transparent, rgba(28, 25, 20, 0.82));
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.625rem;
  line-height: 1.35;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.cell:hover .cap, .cell:focus-visible .cap { opacity: 1; }
.cell.no-img { display: grid; align-content: end; padding: 0.5rem; border-top: 2px solid var(--era-c, var(--accent)); }
.cell.no-img .ttl { font-size: 0.72rem; font-style: italic; line-height: 1.3; color: var(--ink-2); }
.cell[hidden] { display: none; }
.sheet-count { font-family: var(--sans); font-size: 0.75rem; color: var(--ink-2); padding-bottom: 1rem; }

/* ---- lightbox ----------------------------------------------------------------------- */

dialog.lightbox {
  border: 0;
  padding: 0;
  width: min(100vw, 1500px);
  max-width: 100vw;
  height: 100svh;
  max-height: 100svh;
  background: var(--paper);
  color: var(--ink);
}
dialog.lightbox::backdrop { background: rgba(28, 25, 20, 0.55); }
.lb-grid {
  display: grid;
  grid-template-columns: minmax(0, 13fr) minmax(19rem, 7fr);
  gap: clamp(1.2rem, 3vw, 3rem);
  height: 100%;
  padding: clamp(1.2rem, 3.5vw, 3rem);
}
.lb-fig { margin: 0; display: grid; align-content: center; min-width: 0; }
.lb-fig img { max-width: 100%; max-height: calc(100svh - clamp(2.4rem, 7vw, 6rem)); object-fit: contain; margin: 0 auto; }
.lb-fig .lb-noimg {
  padding: 3rem 2rem;
  border-top: 4px solid var(--era-c, var(--accent));
  background: linear-gradient(160deg, color-mix(in srgb, var(--era-c, var(--accent)) 13%, var(--paper-deep)), var(--paper-deep));
  font-size: 2rem; font-style: italic; color: var(--ink-2);
}
.lb-side { overflow-y: auto; display: grid; gap: 0.9rem; align-content: start; padding-right: 0.5rem; }
.lb-side .desc { margin: 0; color: var(--ink-2); font-size: 0.98rem; }
.lb-bar {
  position: absolute;
  top: 0.9rem; right: 1rem;
  display: flex;
  gap: 0.4rem;
}
.lb-btn {
  font-family: var(--sans);
  font-size: 0.8rem;
  border: 1px solid var(--rule);
  background: var(--plate);
  color: var(--ink-2);
  width: 2.2rem; height: 2.2rem;
  border-radius: 999px;
  cursor: pointer;
  display: grid; place-items: center;
}
.lb-btn:hover { color: var(--accent); border-color: var(--accent-soft); }
.lb-count { position: absolute; bottom: 1rem; right: 1.2rem; font-family: var(--sans); font-size: 0.6875rem; letter-spacing: 0.12em; color: var(--ink-3); }
@media (max-width: 820px) {
  .lb-grid { grid-template-columns: 1fr; grid-template-rows: minmax(0, 3fr) minmax(0, 2fr); }
  .lb-fig img { max-height: 52svh; }
}

/* ---- footer / colophon ----------------------------------------------------------------- */

.colophon {
  border-top: 1px solid var(--rule);
  padding: clamp(2.6rem, 7vh, 4.5rem) var(--pad);
  display: grid;
  gap: 1.1rem;
}
.colophon .big { font-size: clamp(1.4rem, 3vw, 2rem); font-style: italic; max-width: 34ch; line-height: 1.3; margin: 0; text-wrap: balance; }
.colophon .meta { max-width: 52rem; }
.colophon nav { display: flex; flex-wrap: wrap; gap: 1.6rem; }

/* ---- reveal on scroll -------------------------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .spiral-tile image, .cell .cap { transition: none; }
}

/* :target flash for spiral → card jumps */
@keyframes targetflash { 0%, 60% { outline-color: color-mix(in srgb, var(--accent) 55%, transparent); } 100% { outline-color: transparent; } }
.card:target, .plate:target { outline: 2px solid transparent; outline-offset: 6px; animation: targetflash 2.2s ease 0.3s both; }

/* ---- print: posters ------------------------------------------------------------------------ */

@media print {
  :root { --paper: #ffffff; --plate: #ffffff; }
  body { font-size: 11pt; }
  .nav, .minimap, .filters, .hero .down, .lb-bar, .pager, .spiral-tip { display: none !important; }
  .hero { min-height: auto; padding-top: 3rem; }
  .era, .plate { break-inside: avoid-page; }
  .era { break-before: page; }
  .reveal { opacity: 1 !important; transform: none !important; }
  a { text-decoration: none; }
  .cards { columns: 3 200px; }
}