:root {
  --paper: #f2e9d4;
  --paper-deep: #e9dcc0;
  --ink: #2b2418;
  --ink-soft: #5a4d38;
  --rule: #8a7a5c;
  --accent: #7a2e1d;
  --night: #050403;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper-deep);
  color: var(--ink);
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 18px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

.sheet {
  max-width: 1020px;
  margin: 1rem auto 2.5rem;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 252, 240, 0.55), transparent 60%),
    var(--paper);
  box-shadow: 0 2px 6px rgba(43, 36, 24, 0.25), 0 18px 50px rgba(43, 36, 24, 0.28);
  padding: 2.2rem 1.25rem 3rem;
  position: relative;
}

/* double-rule plate border */
.sheet::before {
  content: "";
  position: absolute;
  inset: 0.7rem;
  border: 1px solid var(--rule);
  outline: 3px double var(--rule);
  outline-offset: 4px;
  pointer-events: none;
}

/* ---- masthead ---- */

.masthead { text-align: center; margin-bottom: 2.2rem; }

.plate-no {
  font-family: 'IM Fell English', serif;
  letter-spacing: 0.35em;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin: 0;
}

.masthead h1 {
  font-family: 'IM Fell English', serif;
  font-weight: 400;
  font-size: clamp(2.2rem, 7vw, 3rem);
  margin: 0.35rem 0 0.1rem;
  letter-spacing: 0.02em;
}

.masthead h1 a { color: inherit; text-decoration: none; }

.subtitle {
  font-style: italic;
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin: 0;
}

.observed-by { font-size: 0.98rem; color: var(--ink-soft); margin: 0.2rem 0 0; }

.fleuron { color: var(--accent); font-size: 1.1rem; letter-spacing: 0.8em; margin: 0.7rem 0 0; }

/* ---- section labels ---- */

.room-label {
  text-align: center;
  font-family: 'IM Fell English', serif;
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 2.2rem 0 0.3rem;
}

.room-sublabel {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.98rem;
  margin: 0 auto 1.6rem;
  max-width: 52ch;
}

/* ---- origin note ---- */

.origin-note {
  font-family: 'Caveat', cursive;
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--accent);
  max-width: 46ch;
  margin: 0 auto;
  transform: rotate(-0.6deg);
}

.origin-note p { margin: 0; }

.origin-note footer {
  font-size: 1.05rem;
  color: var(--ink-soft);
  text-align: right;
  margin-top: 0.3rem;
}

/* ---- contents (index) ---- */

.contents-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 0.6rem;
  margin: 0 auto;
  max-width: 780px;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid rgba(138, 122, 92, 0.35);
}

.contents-row:last-of-type { border-bottom: none; }

.contents-row:hover { background: rgba(255, 252, 240, 0.5); }

.contents-thumbs { display: flex; gap: 4px; flex-shrink: 0; }

.contents-thumbs img {
  width: 62px;
  height: 62px;
  object-fit: cover;
  background: #0c0a07;
  border: 1px solid var(--ink);
}

.contents-thumbs img:nth-child(2) { display: none; }
.contents-thumbs img:nth-child(3) { display: none; }

.contents-text h3 { margin: 0; font-weight: 500; font-size: 1.2rem; }

.contents-text .roman {
  font-family: 'IM Fell English', serif;
  font-weight: 400;
  color: var(--accent);
}

.contents-text p { margin: 0.1rem 0 0; font-style: italic; color: var(--ink-soft); font-size: 0.95rem; }

.contents-text .count { font-style: normal; font-size: 0.85rem; letter-spacing: 0.08em; }

/* ---- lineage list (index) ---- */

.lineage-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 780px;
  text-align: center;
}

.lineage-list li { margin: 0.45rem 0; }

.lineage-list a { font-size: 1.1rem; }

.lineage-list .count { color: var(--ink-soft); font-size: 0.9rem; }

.colophon-link { text-align: center; margin-top: 2.5rem; font-style: italic; }

.archive-link { text-align: center; font-size: 1.1rem; }

.latest-strip {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 0.4rem 0 0.3rem;
}

.latest-strip img {
  width: 84px;
  height: 84px;
  object-fit: cover;
  background: #0c0a07;
  border: 1px solid var(--ink);
  padding: 3px;
  transition: transform 0.2s ease;
}

.latest-item:hover img { transform: translateY(-2px); }

.latest-caption {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0 0 0.6rem;
}

/* ---- archive ledger ---- */

.archive-month {
  font-family: 'IM Fell English', serif;
  font-weight: 400;
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
  margin: 2.2rem 0 1rem;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.3rem 1rem;
}

.archive-item {
  text-decoration: none;
  color: inherit;
  text-align: center;
  font-size: 0.85rem;
}

.archive-item img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #0c0a07;
  border: 1px solid var(--ink);
  padding: 4px;
  margin-bottom: 0.35rem;
  transition: transform 0.2s ease;
}

.archive-item:hover img { transform: translateY(-2px); }

.archive-label { display: block; line-height: 1.25; }

.archive-date { display: block; font-style: italic; color: var(--ink-soft); font-size: 0.78rem; }

/* ---- plate grid (room) ---- */

.plate-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem 2.2rem;
}

.specimen { margin: 0; text-align: center; }

.specimen-video {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #0c0a07;
  padding: 9px;
  border: 1px solid var(--ink);
  box-shadow: inset 0 0 0 1px rgba(242, 233, 212, 0.15), 0 3px 12px rgba(43, 36, 24, 0.35);
  cursor: zoom-in;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.specimen-video:hover {
  transform: translateY(-3px);
  box-shadow: inset 0 0 0 1px rgba(242, 233, 212, 0.2), 0 10px 26px rgba(43, 36, 24, 0.45);
}

.specimen figcaption { margin-top: 0.85rem; }

.fig-no {
  font-family: 'IM Fell English', serif;
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

.fig-name { font-size: 1.3rem; font-weight: 500; margin: 0.1rem 0 0; }

.fig-name a { color: inherit; text-decoration: none; }

.fig-name a:hover { color: var(--accent); }

.fig-date { font-style: italic; color: var(--ink-soft); font-size: 0.95rem; margin: 0.15rem 0 0; }

.fig-more { margin: 0.3rem 0 0; font-size: 0.95rem; }

.room-nav { text-align: center; margin-top: 2.6rem; }

/* ---- specimen page ---- */

.specimen-solo { max-width: 720px; margin: 0 auto; }

.fig-name-big { font-size: 1.6rem; font-weight: 500; margin: 0.9rem 0 0; }

.field-note { max-width: 620px; margin: 2rem auto 0; }

.family-title {
  font-family: 'IM Fell English', serif;
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: center;
  margin: 0 0 0.7rem;
}

.caption-verbatim {
  margin: 0;
  font-size: 1.12rem;
  white-space: pre-line;
  border-left: 2px solid var(--rule);
  padding-left: 1rem;
}

.wall-label { text-align: center; margin-top: 1.8rem; }

.provenance {
  font-family: 'Caveat', cursive;
  font-size: 1.15rem;
  color: var(--accent);
  transform: rotate(-1.2deg);
  display: inline-block;
  margin: 0;
}

.source-link { margin: 0.4rem 0 0; font-size: 0.98rem; }

.margin-notes { max-width: 560px; margin: 2.2rem auto 0; }

.margin-note {
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  line-height: 1.25;
  color: #4a5568;
  margin: 0.7rem 0;
  transform: rotate(-0.8deg);
}

.margin-note:nth-child(odd) { transform: rotate(0.7deg); }

.margin-handle { font-size: 1rem; color: var(--ink-soft); }

.curator-note {
  font-family: 'Caveat', cursive;
  font-size: 1.2rem;
  line-height: 1.25;
  color: #4a5568;
  max-width: 36ch;
  margin: 0.45rem auto 0;
  transform: rotate(-0.8deg);
}

/* ---- tags ---- */

.tag-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.6rem;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--rule);
  background: rgba(255, 252, 240, 0.55);
  padding: 0.15rem 0.65rem;
  font-size: 0.95rem;
}

.tag-chip a { text-decoration: none; }

.tag-add input[type="text"] {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--rule);
  background: #fffdf5;
  color: var(--ink);
  width: 10rem;
}

.tag-add select, .tag-add button {
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--ink);
  background: var(--paper-deep);
  cursor: pointer;
}

.tag-row .inline-form { display: inline-flex; gap: 0.3rem; align-items: center; margin: 0; }

.tag-row .link-button {
  border: none;
  background: none;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  font-size: 0.85rem;
}

/* ---- lineage strip ---- */

.family { margin-top: 2.4rem; }

.family-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.family-member {
  text-decoration: none;
  color: var(--ink-soft);
  text-align: center;
  font-size: 0.8rem;
}

.family-member img {
  display: block;
  width: 104px;
  height: 104px;
  object-fit: cover;
  background: #0c0a07;
  border: 1px solid var(--ink);
  padding: 4px;
  margin-bottom: 3px;
}

.family-member.current img { outline: 2px solid var(--accent); outline-offset: 2px; }

.family-arrow { color: var(--accent); font-size: 1.5rem; }

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

.prose { max-width: 620px; margin: 0 auto; }

.prose p { margin: 1rem 0; }

.prose .origin-note { margin: 1.6rem auto; }

/* ---- behold overlay ---- */

#behold {
  position: fixed;
  inset: 0;
  background: var(--night);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  cursor: zoom-out;
}

#behold.open { display: flex; }

#behold video { max-width: 100vw; max-height: 100vh; width: 100%; height: 100%; object-fit: contain; }

.behold-hint {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  text-align: center;
  color: #b6a887;
  font-style: italic;
  font-size: 0.95rem;
  opacity: 0.7;
  margin: 0;
  pointer-events: none;
}

body.beholding { overflow: hidden; }

/* ---- wider screens ---- */

@media (min-width: 640px) {
  .sheet { margin: 3rem auto 5rem; padding: 3.2rem 3.4rem 4rem; }
  .sheet::before { inset: 1.1rem; }
  .plate-grid { grid-template-columns: repeat(2, 1fr); }
  .contents-thumbs img { width: 74px; height: 74px; }
  .contents-thumbs img:nth-child(2) { display: block; }
}

@media (min-width: 900px) {
  .contents-thumbs img:nth-child(3) { display: block; }
}


/* ---- ambient mode ---- */

.ambient-body {
  margin: 0;
  background: #050403;
  overflow: hidden;
  height: 100vh;
  cursor: none;
}

.ambient-body:hover { cursor: default; }

#ambient-stage { position: fixed; inset: 0; }

#ambient-stage video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 1.6s ease;
}

#ambient-stage video.visible { opacity: 1; }

#ambient-label {
  position: fixed;
  bottom: 1.4rem;
  left: 0;
  right: 0;
  text-align: center;
  font-family: 'IM Fell English', serif;
  font-style: italic;
  font-size: 1.15rem;
  color: #b6a887;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

#ambient-label.breathe {
  animation: ambient-breathe 9s ease forwards;
}

@keyframes ambient-breathe {
  0% { opacity: 0; }
  12% { opacity: 0.85; }
  70% { opacity: 0.85; }
  100% { opacity: 0; }
}

#ambient-exit {
  position: fixed;
  top: 1rem;
  right: 1.2rem;
  background: none;
  border: none;
  color: #b6a887;
  font-size: 1.3rem;
  opacity: 0.35;
  cursor: pointer;
}

#ambient-exit:hover { opacity: 0.9; }

.ambient-link { text-align: center; font-style: italic; margin-top: 0.4rem; }

.dimension-filter {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  margin: -0.6rem 0 1.6rem;
}


/* ---- thread rooms read as the conversation ---- */

.thread-flow {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 680px;
  margin: 0 auto;
}

.thread-entry figcaption { text-align: left; }

.thread-entry .fig-no { text-align: center; }

.thread-note {
  white-space: pre-line;
  font-size: 1.12rem;
  line-height: 1.55;
  margin: 0.5rem 0 0;
}

.thread-entry .fig-date { text-align: center; margin-top: 0.6rem; }