/* LAPIDARIUM · stone ivory, charcoal, a line of bronze */

:root {
  --paper: #ece7dd;
  --ink: #26221c;
  --bronze: #9c7a3c;
  --bronze-deep: #7d612e;
  --rule-soft: rgba(156, 122, 60, 0.5);
  --rule-faint: rgba(156, 122, 60, 0.3);
  --serif: 'Playfair Display', 'Iowan Old Style', Georgia, serif;
  --mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;
  --ease-walk: cubic-bezier(0.22, 0.61, 0.21, 0.98);
  --ease-stone: cubic-bezier(0.16, 0.84, 0.28, 0.99);
  --ease-lift: cubic-bezier(0.34, 0, 0.14, 1);
  --measure: 660px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* paper tooth */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

::selection { background: rgba(156, 122, 60, 0.28); }

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--rule-soft);
  transition: border-color 0.35s var(--ease-stone);
}
a:hover { border-color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  padding: 0.85em 1.3em;
  border: none;
  transition: top 0.3s var(--ease-lift);
}
.skip:focus { top: 16px; }

/* ======================= THE WALK (Plate I) ======================= */

.walk { height: 460vh; }

.walk__stage {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  padding: clamp(14px, 2.4vh, 26px) clamp(18px, 4.5vw, 64px) clamp(10px, 1.6vh, 18px);
  row-gap: clamp(8px, 1.4vh, 16px);
}

.masthead { text-align: center; }

.masthead__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.35rem, 2.7vw, 2.05rem);
  letter-spacing: 0.44em;
  margin-right: -0.44em; /* recenters letterspaced text */
  line-height: 1.15;
}

.masthead__line {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(0.72rem, 1.15vw, 0.85rem);
  opacity: 0.72;
  margin-top: 0.35em;
  text-wrap: balance;
}

.plate {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.plate__frame {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  border: 1px solid var(--rule-soft);
  padding: 11px;
  background: var(--paper);
}
.plate__frame::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--rule-faint);
  pointer-events: none;
}

.plate__frame canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.plate__folio {
  position: absolute;
  top: -0.72em;
  right: 20px;
  background: var(--paper);
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  color: var(--bronze);
}

.station {
  position: absolute;
  left: 20px;
  bottom: 15px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  color: var(--bronze-deep);
  pointer-events: none;
}
.station span {
  display: inline-block;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.55s var(--ease-walk), transform 0.55s var(--ease-walk);
}
.station span.is-fading {
  opacity: 0;
  transform: translateY(5px);
}

.carve-note {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  font-style: italic;
  padding: 2rem;
  max-width: 46ch;
  margin: auto;
}

.plate__caption {
  margin-top: 13px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.plate__no {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.34em;
  color: var(--bronze);
}

.plate__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(0.98rem, 1.6vw, 1.16rem);
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.plate__data {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  opacity: 0.62;
}

.scrollhint {
  text-align: center;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.36em;
  opacity: 0.5;
  animation: hint-breathe 4.5s var(--ease-walk) infinite alternate;
}
@keyframes hint-breathe {
  from { opacity: 0.26; }
  to   { opacity: 0.58; }
}

/* ======================= SECTIONS ======================= */

main { display: block; }

section { padding: clamp(5.5rem, 11vh, 9rem) clamp(1.25rem, 5vw, 3rem); }

.section-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.8rem;
  margin-bottom: clamp(3rem, 6vh, 4.2rem);
}

.section-rule {
  height: 1px;
  width: min(150px, 18vw);
  background: var(--rule-soft);
}

.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.18rem, 2.4vw, 1.5rem);
  letter-spacing: 0.3em;
  margin-right: -0.3em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---------- charter ---------- */

.charter__body {
  max-width: var(--measure);
  margin: 0 auto;
  font-size: 1.075rem;
  line-height: 1.8;
}
.charter__body p { text-wrap: pretty; }
.charter__body p + p { margin-top: 1.5em; }

.has-dropcap::first-letter {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 4.7em;
  line-height: 0.76;
  float: left;
  padding: 0.08em 0.14em 0 0;
  color: var(--bronze);
}

.articles {
  max-width: 560px;
  margin: 4.6rem auto 0;
  border-top: 1px solid var(--rule-faint);
  border-bottom: 1px solid var(--rule-faint);
  padding: 2.3rem 0.5rem;
}

.articles__head {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--bronze-deep);
  text-align: center;
  margin-bottom: 1.8rem;
}

.articles__list {
  list-style: none;
  display: grid;
  gap: 1.1rem;
}

.articles__list li {
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  align-items: baseline;
}

.articles__no {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--bronze);
  text-align: right;
  padding-right: 1.1rem;
}

.articles__text {
  font-size: 0.97rem;
  line-height: 1.62;
}

/* ---------- collection ---------- */

.collection__intro {
  text-align: center;
  font-style: italic;
  font-size: 1.04rem;
  max-width: 520px;
  margin: -1.4rem auto 5rem;
  opacity: 0.78;
  text-wrap: balance;
}

.exhibit {
  max-width: 1120px;
  margin: 0 auto;
}
.exhibit + .exhibit { margin-top: clamp(5rem, 10vh, 7.5rem); }

.exhibit--pier {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.2rem, 4.5vw, 4.2rem);
  align-items: center;
}

.exhibit--rose {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.2rem, 4.5vw, 4.2rem);
  align-items: center;
}
.exhibit--rose .exhibit__text { text-align: right; }

.exhibit__text p {
  font-size: 1.02rem;
  line-height: 1.76;
  text-wrap: pretty;
}
.exhibit__text p + p { margin-top: 1.25em; }

.exhibit__aside {
  font-style: italic;
  opacity: 0.68;
}

.exhibit--pier .plate__frame canvas { aspect-ratio: 5 / 5.6; height: auto; }
.exhibit--rose .plate__frame canvas { aspect-ratio: 1 / 1; height: auto; }
.exhibit--vault .plate__frame canvas { aspect-ratio: 16 / 8; height: auto; }

.plate__hint {
  position: absolute;
  right: 16px;
  bottom: 12px;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.3em;
  color: var(--bronze-deep);
  opacity: 0.75;
  pointer-events: none;
}

#pierCanvas { cursor: grab; touch-action: pan-y; }
#pierCanvas.is-dragging { cursor: grabbing; }

.bloom-again {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--bronze-deep);
  background: none;
  border: 1px solid var(--rule-soft);
  padding: 0.7em 1.25em;
  cursor: pointer;
  transition: letter-spacing 0.45s var(--ease-stone), border-color 0.45s var(--ease-stone);
}
.bloom-again:hover {
  letter-spacing: 0.4em;
  border-color: var(--bronze);
}

.exhibit--vault .plate { max-width: 1120px; margin: 0 auto; }

.exhibit__columns {
  columns: 2;
  column-gap: 3.2rem;
  max-width: 880px;
  margin: 2.6rem auto 0;
}
.exhibit__columns p {
  font-size: 1rem;
  line-height: 1.74;
  break-inside: avoid;
  text-wrap: pretty;
}
.exhibit__columns p + p { margin-top: 1.2em; }

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

.colophon__body {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.02rem;
}
.colophon__body > p + p { margin-top: 1.4em; }

.ramp {
  font-family: var(--mono);
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  letter-spacing: 0.3em;
  padding: 1.45rem 0.5rem;
  margin-top: 2.2rem;
  border-top: 1px solid var(--rule-faint);
  border-bottom: 1px solid var(--rule-faint);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.ramp::-webkit-scrollbar { display: none; }

.ramp__caption {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.26em;
  opacity: 0.55;
  margin-top: 0.9rem !important;
}

.colophon__guide { margin-top: 2.6rem !important; }

/* ---------- the visitors' book ---------- */

.visitors { padding-top: 0; }

.visitors__page {
  max-width: 620px;
  margin: 0 auto;
  border: 1px solid var(--rule-faint);
  padding: clamp(2rem, 4.5vw, 3.2rem) clamp(1.4rem, 4vw, 3rem);
  position: relative;
}
.visitors__page::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(156, 122, 60, 0.14);
  pointer-events: none;
}

.visitors__head {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.64rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--bronze-deep);
  text-align: center;
}

.visitors__note {
  text-align: center;
  font-style: italic;
  font-size: 0.95rem;
  opacity: 0.7;
  margin-top: 1rem;
  text-wrap: balance;
}

.visitors__list {
  list-style: none;
  margin-top: 2.2rem;
  display: grid;
}

.visitors__list li {
  display: grid;
  grid-template-columns: 7.2rem 1fr;
  gap: 1.4rem;
  padding: 1.15rem 0.2rem;
  align-items: baseline;
}
.visitors__list li + li { border-top: 1px solid rgba(156, 122, 60, 0.16); }

.visitors__date {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--bronze-deep);
  text-align: right;
}

.visitors__entry {
  font-size: 0.99rem;
  line-height: 1.66;
  text-wrap: pretty;
}

.visitors__sig {
  display: block;
  margin-top: 0.35em;
  font-style: italic;
  font-size: 0.9rem;
  opacity: 0.62;
}

@media (max-width: 480px) {
  .visitors__list li { grid-template-columns: 1fr; gap: 0.35rem; }
  .visitors__date { text-align: left; }
}

/* ======================= FOOTER ======================= */

.folio-end {
  text-align: center;
  padding: 4.5rem 1.5rem 5.5rem;
}

.folio-end__mark { margin-bottom: 1.9rem; }
.folio-end__mark span {
  display: inline-block;
  width: 7px;
  height: 7px;
  border: 1px solid var(--bronze);
  transform: rotate(45deg);
}

.folio-end__line {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.26em;
  opacity: 0.78;
}
.folio-end__line + .folio-end__line { margin-top: 0.7em; }
.folio-end__line--dim { opacity: 0.45; }
.nowrap { white-space: nowrap; }

/* ======================= RESPONSIVE ======================= */

@media (max-width: 900px) {
  .exhibit--pier,
  .exhibit--rose {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }
  .exhibit--rose .plate { order: -1; }
  .exhibit--rose .exhibit__text { text-align: left; }
  .exhibit__columns { columns: 1; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .walk__stage { padding: 12px 14px 8px; }
  .plate__frame { padding: 8px; }
  .plate__frame::before { inset: 3px; }
  .plate__folio { right: 12px; }
  .station { left: 14px; bottom: 11px; font-size: 0.52rem; }
  .plate__data { font-size: 0.5rem; letter-spacing: 0.12em; }
  .charter__body { font-size: 1rem; }
  .articles__list li { grid-template-columns: 2.1rem 1fr; }
  .scrollhint { font-size: 0.52rem; letter-spacing: 0.3em; }
}

/* ======================= REDUCED MOTION ======================= */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scrollhint { animation: none; opacity: 0.45; }
  .station span { transition: none; }
}