@font-face {
  font-family: 'Jost';
  src: url('assets/fonts/jost-latin.woff2') format('woff2');
  font-weight: 300 600;
  font-display: swap;
}
@font-face {
  font-family: 'Plex Mono';
  src: url('assets/fonts/ibm-plex-mono-latin-400.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

:root {
  --paper: #f2eee5;
  --glass: rgba(242, 238, 229, 0.8);
  --ink: #1d1c1a;
  --ink-soft: rgba(29, 28, 26, 0.62);
  --ink-faint: rgba(29, 28, 26, 0.16);
  --bronze: #8a6844;
  --bronze-soft: rgba(138, 104, 68, 0.3);
  --gutter: clamp(16px, 2.2vw, 28px);
  --bottom: calc(var(--gutter) + env(safe-area-inset-bottom, 0px));
  --tb-w: 340px; /* the title block's column; src/story.js reserves room for it */
  --nav-h: 58px;
  --shadow: 0 10px 34px rgba(29, 28, 26, 0.13), 0 1px 3px rgba(29, 28, 26, 0.08);
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1);
  --mono: 'Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Jost', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

#view {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}

.scroll { height: 1000vh; }

/* Screen-space lettering stays sharp independently of WebGL resolution. */
.plan-annotations { position: fixed; inset: 0; overflow: hidden; pointer-events: none; }
.plan-label { fill: var(--ink); paint-order: stroke fill; stroke: var(--paper); stroke-width: 1.5px; stroke-linejoin: round; }
.rendered-plan .plan-label { stroke-width: 1.8px; }
.plan-dimensions { fill: none; stroke: var(--ink); opacity: 0.75; }
.plan-annotations.compact .plan-detail { display: none; }

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

/* Shared controls */
.btn {
  display: inline-flex;
  white-space: nowrap;
  align-items: center;
  gap: 9px;
  height: 42px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font: 500 12px/1 'Jost', sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--bronze); border-color: var(--bronze); }
.btn-small { height: 34px; padding: 0 15px; font-size: 11px; }
.btn svg { width: 12px; height: 12px; fill: currentColor; flex: none; }
.icon-btn {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 0.2s;
}
.icon-btn:hover { background: rgba(29, 28, 26, 0.08); }
.icon-btn svg { width: 16px; height: 16px; }
.icon-btn[hidden] { display: none; }
.eyebrow, .tb-eyebrow {
  margin: 0;
  font: 400 10.5px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.credit {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: inherit;
  text-decoration: none;
}
.credit svg { width: 14px; height: 14px; }
.credit:hover { color: var(--bronze); }

/* The plan sheet: frame and title block, as on a printed drawing. The title
   block introduces the house at the start and offers the next steps at the end. */
.sheet { position: fixed; inset: 0; pointer-events: none; }
.sheet.live .title-block { pointer-events: auto; }
.sheet-frame {
  position: absolute;
  inset: var(--gutter);
  border: 1.5px solid var(--ink);
  outline: 0.5px solid var(--ink);
  outline-offset: -6px;
}
.title-block {
  position: absolute;
  left: calc(var(--gutter) + 6px);
  right: calc(var(--gutter) + 6px);
  bottom: calc(var(--gutter) + 6px);
  border-top: 0.5px solid var(--ink);
  background: var(--paper);
}
.tb-hero { padding: 16px 16px 14px; }
.tb-name {
  margin: 6px 0 0;
  font-size: 23px;
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.tb-lede {
  margin: 8px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
}
.tb-actions { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.tb-or {
  font: 400 10.5px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.sheet:not(.ending) .tb-end, .sheet.ending .tb-start { display: none; }
.tb-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  border-top: 0.5px solid var(--ink);
}
.tb-facts div { padding: 8px 10px 9px; border-left: 0.5px solid var(--ink); }
.tb-facts div:first-child { border-left: 0; }
.tb-facts dt {
  font: 400 9.5px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.tb-facts dd { margin: 3px 0 0; font-size: 15px; font-weight: 500; white-space: nowrap; }
.tb-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 14px;
  border-top: 0.5px solid var(--ink);
  font: 400 11px var(--mono);
}
.tb-row > span:first-child { color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.08em; }
.tb-drawing { display: none; }

@media (min-aspect-ratio: 23/20) {
  .title-block {
    top: calc(var(--gutter) + 6px);
    left: auto;
    width: var(--tb-w);
    display: flex;
    flex-direction: column;
    border-top: 0;
    border-left: 0.5px solid var(--ink);
  }
  .tb-hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 28px 26px;
  }
  .tb-name { font-size: 31px; letter-spacing: 0.18em; }
  .tb-lede { margin-top: 16px; font-size: 16px; }
  .tb-actions { margin-top: 26px; }
  .tb-facts { grid-template-columns: 1fr 1fr; }
  .tb-facts div { padding: 12px 14px 13px; }
  .tb-facts div:nth-child(odd) { border-left: 0; }
  .tb-facts div:nth-child(n + 3) { border-top: 0.5px solid var(--ink); }
  .tb-facts dt { font-size: 10px; }
  .tb-facts dd { font-size: 19px; font-weight: 400; }
  .tb-drawing { display: flex; }
}

.hint {
  position: fixed;
  left: 50%;
  bottom: calc(var(--gutter) + 22px);
  transform: translateX(-50%);
  font: 400 10.5px var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  pointer-events: none;
  transition: opacity 0.4s;
}
.hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 30px;
  margin: 10px auto 0;
  background: linear-gradient(var(--ink) 50%, transparent 50%) 0 0 / 1px 60px;
  animation: hint 1.8s ease-in-out infinite;
}
@keyframes hint { from { background-position: 0 -30px; } to { background-position: 0 30px; } }
.hint.gone { opacity: 0; }
@media (min-aspect-ratio: 23/20) {
  .hint { left: calc((100vw - var(--tb-w) - var(--gutter)) / 2); }
}
@media (max-aspect-ratio: 23/20) {
  .hint { display: none; }
}

/* Along the top: the house's name and an enquiry button, once the tour starts. */
.topbar {
  position: fixed;
  top: calc(var(--gutter) + env(safe-area-inset-top, 0px));
  left: var(--gutter);
  right: var(--gutter);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.35s, transform 0.5s var(--ease-out);
}
.touring .topbar { opacity: 1; transform: none; }
.touring .topbar > * { pointer-events: auto; }
.brand {
  padding: 11px 16px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}
.tag {
  padding: 4px 8px;
  border: 1px solid var(--ink-faint);
  border-radius: 2px;
  background: var(--glass);
  font: 400 9.5px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.topbar-actions { display: flex; align-items: center; gap: 4px; margin-left: auto; padding: 5px; }
.brand, .topbar-actions, .tour-nav, .card, .minimap, .status {
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
  box-shadow: var(--shadow);
  border-radius: 3px;
}

/* Along the bottom: the chapters of the tour. Each segment fills as the walk
   passes it; a click goes there. */
.tour-nav {
  position: fixed;
  left: 50%;
  bottom: var(--bottom);
  width: min(1180px, calc(100vw - 2 * var(--gutter)));
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 12px);
  transition: opacity 0.35s, transform 0.5s var(--ease-out);
}
.touring .tour-nav { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.play {
  display: grid;
  place-items: center;
  flex: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  transition: background-color 0.2s;
}
.play:hover { background: var(--bronze); }
.play svg { width: 14px; height: 14px; fill: currentColor; }
.play .i-pause, .playing .play .i-play { display: none; }
.playing .play .i-pause { display: block; }
.nav-now { display: none; }
.chapters {
  flex: 1;
  display: flex;
  gap: 3px;
  height: 100%;
  min-width: 0;
  margin: 0;
  padding: 0 4px;
  list-style: none;
}
.chapters li { flex: 1; min-width: 0; }
.seg {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 100%;
  padding: 0 2px;
  border: 0;
  background: none;
  color: var(--ink-soft);
  font: 500 10px/1 'Jost', sans-serif;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s;
}
.seg-label { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.seg-track {
  position: relative;
  height: 2px;
  overflow: hidden;
  background: var(--ink-faint);
  transition: transform 0.2s;
}
.seg-fill {
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
}
.seg:hover { color: var(--ink); }
.seg:hover .seg-track { transform: scaleY(2); }
.seg[aria-current] { color: var(--ink); }
.seg[aria-current] .seg-fill { background: var(--bronze); }
.nav-step { display: flex; flex: none; gap: 2px; }

/* The room card, bottom left. Its lines come in one after another. */
.card {
  position: fixed;
  left: var(--gutter);
  bottom: calc(var(--bottom) + var(--nav-h) + 12px);
  width: min(400px, calc(100vw - 2 * var(--gutter)));
  margin: 0;
  padding: 18px 20px 16px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.26s, transform 0.26s;
}
.card.in { opacity: 1; transform: none; transition: opacity 0.45s, transform 0.7s var(--ease-out); }
.card > * { opacity: 0; transform: translateY(8px); transition: opacity 0.2s, transform 0.2s; }
.card.in > * { opacity: 1; transform: none; transition: opacity 0.5s, transform 0.7s var(--ease-out); }
.card.in > :nth-child(2) { transition-delay: 0.06s; }
.card.in > :nth-child(3) { transition-delay: 0.14s; }
.card.in > :nth-child(4) { transition-delay: 0.22s; }
.card-num {
  font: 400 10.5px var(--mono);
  letter-spacing: 0.14em;
  color: var(--bronze);
}
.card-title { margin: 6px 0 0; font-size: 27px; font-weight: 400; line-height: 1.15; }
.card-text { margin: 8px 0 0; font-size: 14.5px; line-height: 1.5; color: var(--ink-soft); }
.card-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 0.5px solid var(--ink-faint);
}
.card-specs dt {
  font: 400 9.5px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.card-specs dd { margin: 3px 0 0; font-size: 15px; font-weight: 500; white-space: nowrap; }

/* The small plan, bottom right: where the camera stands and where it looks. */
.minimap {
  position: fixed;
  right: var(--gutter);
  bottom: calc(var(--bottom) + var(--nav-h) + 12px);
  width: 148px;
  margin: 0;
  padding: 10px 10px 8px;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.35s, transform 0.5s var(--ease-out);
}
.minimap.show { opacity: 1; transform: none; pointer-events: auto; }
.minimap svg { display: block; width: 100%; height: auto; }
.minimap figcaption {
  display: flex;
  justify-content: space-between;
  margin-top: 7px;
  font: 400 9.5px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.north::after { content: ' →'; }
.mm-ground { fill: rgba(29, 28, 26, 0.07); }
.mm-pool { fill: #a7c0c2; }
.mm-room { fill: rgba(255, 255, 255, 0.6); transition: fill 0.3s; }
.mm-wall { stroke: var(--ink); stroke-linecap: square; }
.mm-glass { stroke: rgba(29, 28, 26, 0.55); }
.mm-link { cursor: pointer; }
.mm-link:hover { fill: rgba(138, 104, 68, 0.18); }
.mm-here, .mm-here:hover { fill: rgba(138, 104, 68, 0.32); }
.mm-cone { fill: rgba(138, 104, 68, 0.38); }
.mm-dot { fill: var(--bronze); stroke: var(--paper); stroke-width: 0.4; }

/* Shown while the rooms' materials are still loading: they stay drawn until then. */
.status {
  position: fixed;
  left: 50%;
  top: calc(var(--gutter) + env(safe-area-inset-top, 0px) + 7px);
  padding: 8px 13px 8px 28px;
  font: 400 10px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  opacity: 0;
  transform: translateX(-50%);
  pointer-events: none;
  transition: opacity 0.4s;
}
.status.show { opacity: 1; }
.status::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--bronze);
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.25; } }

/* Long jumps cut through paper. */
.cut {
  position: fixed;
  inset: 0;
  background: var(--paper);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.26s;
}
.cut.on { opacity: 1; }

/* Enquiry form */
.enquire {
  width: min(440px, calc(100vw - 2 * var(--gutter)));
  max-height: calc(100dvh - 2 * var(--gutter));
  padding: 30px 28px 26px;
  border: 0;
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(29, 28, 26, 0.3);
}
.enquire[open] { animation: rise-in 0.45s var(--ease-out); }
.enquire::backdrop { background: rgba(29, 28, 26, 0.32); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
@keyframes rise-in { from { opacity: 0; transform: translateY(16px); } }
.enq-close { position: absolute; top: 10px; right: 10px; }
.enquire h2 { margin: 8px 0 0; font-size: 28px; font-weight: 400; line-height: 1.15; }
.enq-lede, .enq-done p:not(.eyebrow) { margin: 10px 0 0; font-size: 15px; line-height: 1.5; color: var(--ink-soft); }
.enq-form label {
  display: block;
  margin-top: 14px;
  font: 400 10px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.enq-form .opt { text-transform: none; letter-spacing: 0; opacity: 0.8; }
.enq-form input, .enq-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid rgba(29, 28, 26, 0.24);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  font: 400 16px 'Jost', sans-serif;
  resize: vertical;
}
.enq-form input:focus, .enq-form textarea:focus { outline: none; border-color: var(--ink); background: #fff; }
.enq-form .btn { justify-content: center; width: 100%; margin-top: 22px; }
.enq-note { margin: 14px 0 0; font: 400 10.5px/1.5 var(--mono); color: var(--ink-soft); }
.enq-done .btn { margin-top: 22px; }

/* Loading */
.loading {
  position: fixed;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 18px;
  padding: var(--gutter);
  background: var(--paper);
  text-align: center;
  transition: opacity 0.8s ease;
}
.loading.done { opacity: 0; pointer-events: none; }
.ld-name { font-size: 20px; font-weight: 400; letter-spacing: 0.32em; text-transform: uppercase; }
.ld-bar { position: relative; width: 160px; height: 1px; overflow: hidden; background: var(--ink-faint); }
.ld-bar span { position: absolute; inset: 0; background: var(--ink); animation: load 1.4s ease-in-out infinite; }
@keyframes load { from { transform: translateX(-100%) scaleX(0.4); } to { transform: translateX(100%) scaleX(0.4); } }
.ld-note { margin: 0; max-width: 36ch; font: 400 10.5px/1.6 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); }
.loading.failed .ld-bar { display: none; }
.loading.failed .ld-note { font: 400 15px/1.5 'Jost', sans-serif; letter-spacing: 0; text-transform: none; color: var(--ink); }
.loading.failed { z-index: 20; overflow: auto; gap: 14px; padding-block: 28px 70px; }
.ld-preview { width: min(520px, 85vw); height: auto; max-height: 35vh; object-fit: contain; }
.status.slow { opacity: 1; pointer-events: auto; }
.status .btn { height: 30px; padding: 0 10px; font-size: 10px; }
.no-script { position: fixed; inset: 0; z-index: 30; display: grid; place-content: center; padding: 24px; background: var(--paper); }
.mm-link:focus-visible { stroke: var(--bronze); stroke-width: 0.6; }
.ld-credit {
  position: absolute;
  left: 50%;
  bottom: calc(var(--bottom) + 6px);
  transform: translateX(-50%);
  font: 400 10.5px var(--mono);
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* Recording: the story only, without the page's controls. */
.recording, .recording body { overflow: hidden; }
.recording .scroll, .recording .loading, .recording .topbar, .recording .tour-nav, .recording .minimap,
.recording .status, .recording .hint, .recording .cut { display: none; }
.social-title { display: none; }
.social #sheet, .social #card { display: none; }
.social .social-title {
  display: flex; flex-direction: column; justify-content: flex-end; gap: 12px;
  position: fixed; top: 0; left: 0; width: 1200px; height: 630px; padding: 32px 44px; pointer-events: none;
  color: white; background: linear-gradient(0deg, rgba(18, 24, 23, 0.85), transparent 65%);
}
.social-title strong { font-size: 48px; font-weight: 400; letter-spacing: 0.1em; text-transform: uppercase; }
.social-title p { font-size: 23px; margin: 0 0 10px; }
.social-title span { font: 12px var(--mono); letter-spacing: 0.13em; text-transform: uppercase; }

@media (prefers-reduced-motion: reduce) {
  .hint::after { animation: none; }
}

/* Phones held upright: the chapter bar runs above its controls, the card
   spans the screen and the small plan sits top right. */
@media (max-width: 720px) {
  :root { --nav-h: 66px; }
  .tour-nav {
    flex-wrap: wrap;
    align-content: center;
    row-gap: 6px;
    column-gap: 8px;
    padding: 8px 8px 6px;
  }
  .chapters { order: -1; flex: 0 0 100%; height: 14px; padding: 0 2px; gap: 2px; }
  .seg { gap: 0; }
  .seg-label { display: none; }
  .play { width: 34px; height: 34px; }
  .nav-now {
    display: block;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .brand { min-width: 0; overflow: hidden; padding: 10px 12px; font-size: 11.5px; letter-spacing: 0.24em; text-overflow: ellipsis; }
  .topbar [data-action="fullscreen"] { display: none; }
  .card { padding: 14px 16px 13px; }
  .card-title { font-size: 22px; }
  .card-text { font-size: 13.5px; line-height: 1.45; }
  .card-specs { margin-top: 10px; padding-top: 9px; }
  .card-specs dd { font-size: 14px; }
  .minimap {
    top: calc(var(--gutter) + env(safe-area-inset-top, 0px) + 54px);
    bottom: auto;
    width: 96px;
    padding: 7px 7px 5px;
  }
  .minimap figcaption span:first-child { display: none; }
  .minimap figcaption { justify-content: flex-end; margin-top: 4px; }
  .status { left: var(--gutter); top: calc(var(--gutter) + env(safe-area-inset-top, 0px) + 86px); transform: none; }
}
@media (max-width: 480px) {
  .brand { letter-spacing: 0.2em; }
  .tag { position: absolute; left: 0; top: calc(100% + 6px); }
}

/* Short landscape screens, such as phones held sideways. */
@media (max-height: 560px) and (min-aspect-ratio: 23/20) {
  :root { --tb-w: 290px; --nav-h: 50px; }
  .tb-hero { padding: 16px 18px; }
  .tb-name { font-size: 22px; }
  .tb-lede, .tb-drawing, .tb-or, .hint { display: none; }
  .tb-actions { margin-top: 14px; }
  .tb-facts { grid-template-columns: repeat(4, 1fr); }
  .tb-facts div { padding: 7px 8px; border-top: 0 !important; border-left: 0.5px solid var(--ink) !important; }
  .tb-facts div:first-child { border-left: 0 !important; }
  .tb-facts dt { font-size: 8.5px; letter-spacing: 0.02em; white-space: nowrap; }
  .tb-facts dd { font-size: 13px; }
  .seg-label { display: none; }
  .card { width: min(340px, 46vw); padding: 12px 14px; }
  .card-title { font-size: 19px; }
  .card-text { display: none; }
  .card-specs { margin-top: 8px; padding-top: 8px; }
  .minimap { display: none; }
}