/* ============================================================
   You Were Here — sample site
   A bone-paper gallery × surveyor's atlas
   ============================================================ */

:root {
  /* Palette */
  --bone:        #F2EEE4;
  --bone-dim:    #E8E3D6;
  --paper:       #FBF8F1;
  --ink:         #1A1816;
  --ink-soft:    #4A4641;
  --ink-mute:    #8A847B;
  --rule:        #C9C3B4;
  --accent:      #B8472A;   /* used sparingly — only on small details */

  /* Type */
  --serif:  'Fraunces', 'Iowan Old Style', 'Charter', Georgia, serif;
  --sans:   'Inter', -apple-system, system-ui, sans-serif;
  --mono:   'JetBrains Mono', 'SF Mono', 'Menlo', monospace;

  /* Spacing scale (4px base) */
  --s1:  4px;
  --s2:  8px;
  --s3:  12px;
  --s4:  16px;
  --s5:  24px;
  --s6:  32px;
  --s7:  48px;
  --s8:  64px;
  --s9:  96px;
  --s10: 128px;
  --s11: 192px;

  /* Layout */
  --max-w: 1640px;
  --gutter: clamp(24px, 5vw, 80px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: "ss01", "ss02", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: opacity .2s ease;
}
a:hover { opacity: .55; }

/* ============================================================
   Masthead
   ============================================================ */

.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--bone) 90%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.masthead__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s4) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s7);
}
.wordmark {
  display: flex;
  align-items: center;
  gap: var(--s4);
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: -0.01em;
}
.wordmark__name {
  font-variation-settings: "opsz" 144;
  font-style: italic;
}
.wordmark__rule {
  width: 28px;
  height: 1px;
  background: var(--ink);
  opacity: .35;
}
.wordmark__sub {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.nav {
  display: flex;
  gap: var(--s6);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}
.nav a {
  border-bottom: none;
  position: relative;
  padding: 4px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.nav a:hover { opacity: 1; }
.nav a:hover::after { transform: scaleX(1); }
.nav__external {
  color: var(--ink-mute);
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--s9);
  align-items: end;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s10) var(--gutter) var(--s10);
}
.hero__inner { max-width: 720px; }
.hero__eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 var(--s7);
  padding-left: var(--s5);
  position: relative;
}
.hero__eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: var(--s4);
  height: 1px;
  background: var(--ink-mute);
}
.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(54px, 7.5vw, 122px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 var(--s7);
  font-variation-settings: "opsz" 144;
}
.hero__title span { display: block; }
.hero__title--italic {
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 144;
  color: var(--ink-soft);
  text-indent: 0.4em;
}
.hero__lede {
  font-size: 20px;
  line-height: 1.5;
  max-width: 56ch;
  color: var(--ink-soft);
  margin: 0 0 var(--s7);
}
.hero__meta {
  display: flex;
  gap: var(--s4);
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.hero__meta__dot { opacity: .5; }

.hero__feature {
  margin: 0;
  position: relative;
}
.hero__feature img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: var(--s7);
}
.hero__feature figcaption {
  margin-top: var(--s4);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s4);
  font-size: 13px;
}
.figcaption__coords {
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.figcaption__note {
  color: var(--ink-mute);
  font-style: italic;
  font-family: var(--serif);
  font-size: 15px;
}

/* ============================================================
   Section heading
   ============================================================ */

.section-h {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--s4);
  font-variation-settings: "opsz" 144;
}

/* ============================================================
   Map section
   ============================================================ */

.map-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s9) var(--gutter) var(--s10);
  border-top: 1px solid var(--rule);
}
.map-section__intro {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--s9);
  align-items: end;
  margin-bottom: var(--s7);
}
.map-section__intro p {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0;
}
.map-canvas {
  height: 78vh;
  min-height: 600px;
  background: var(--paper);
  border: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
}

/* Leaflet overrides — keep the chrome minimal */
.leaflet-container {
  background: var(--paper) !important;
  font-family: var(--mono) !important;
  font-size: 11px !important;
}
.leaflet-control-attribution {
  background: rgba(255,255,255,.7) !important;
  font-family: var(--mono) !important;
  font-size: 10px !important;
  padding: 2px 8px !important;
}
.leaflet-control-zoom {
  border: none !important;
  box-shadow: none !important;
}
.leaflet-control-zoom a {
  background: var(--bone) !important;
  color: var(--ink) !important;
  border: 1px solid var(--rule) !important;
  font-family: var(--serif) !important;
  font-weight: 400 !important;
  width: 32px !important;
  height: 32px !important;
  line-height: 32px !important;
}

/* Custom marker */
.marker-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--bone);
  box-shadow: 0 0 0 1px var(--ink), 0 6px 14px rgba(0,0,0,.18);
  cursor: pointer;
  transition: transform .25s cubic-bezier(.2,.7,.2,1);
}
.marker-dot:hover {
  transform: scale(1.45);
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 8px 18px rgba(184,71,42,.35);
}
.marker-dot.is-active {
  transform: scale(1.6);
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.marker-dot.is-dimmed {
  opacity: 0.22;
  background: var(--ink-mute);
  border-color: transparent;
  box-shadow: none;
  transform: scale(0.7);
}

/* ============================================================
   Leaflet popup (click)
   ============================================================ */

.pavement-popup .leaflet-popup-content-wrapper {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 0;
  box-shadow: 0 30px 60px rgba(26, 24, 22, 0.18);
  padding: 0;
}
.pavement-popup .leaflet-popup-content {
  margin: 0;
  padding: var(--s3);
  width: 240px !important;
  font-family: var(--sans);
}
.pavement-popup .leaflet-popup-tip {
  background: var(--paper);
  border: 1px solid var(--rule);
  box-shadow: none;
}
.pavement-popup .leaflet-popup-close-button {
  color: var(--ink-mute) !important;
  font-size: 18px !important;
  font-family: var(--mono) !important;
  padding: 6px 9px !important;
  width: auto !important;
  height: auto !important;
}
.map-popup img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  background: var(--bone);
  margin-bottom: var(--s3);
}
.map-popup__meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.map-popup__coords {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.01em;
}
.map-popup__title {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-soft);
}
.map-popup__sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ============================================================
   Floating preview card
   ============================================================ */

.preview-card {
  position: fixed;
  pointer-events: none;
  z-index: 200;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: var(--s3);
  width: 240px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  box-shadow: 0 30px 60px rgba(26, 24, 22, 0.18);
}
.preview-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.preview-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  background: var(--bone);
  margin-bottom: var(--s3);
}
.preview-card__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
}
#preview-card-coords {
  font-family: var(--mono);
  font-weight: 500;
}
#preview-card-title {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-mute);
  font-size: 13px;
}

/* ============================================================
   Index
   ============================================================ */

.index-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s9) var(--gutter) var(--s10);
  border-top: 1px solid var(--rule);
}
.index-section__intro {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--s9);
  align-items: end;
  margin-bottom: var(--s7);
}
.index-section__intro p {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0;
}

/* Filter strip — neighbourhood chips above the grid */
.index-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-bottom: var(--s7);
  padding-bottom: var(--s5);
  border-bottom: 1px solid var(--rule);
}
.index-filter {
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: var(--s2) var(--s4);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  gap: var(--s3);
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.index-filter:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.index-filter.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.index-filter .num {
  font-size: 10px;
  opacity: .55;
  font-variant-numeric: tabular-nums;
}
.index-filter.is-active .num { opacity: .75; }

.index-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s7) var(--s6);
}

/* Section header — spans full grid row */
.index-section__header {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  gap: var(--s4);
  margin-top: var(--s7);
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--rule);
}
.index-section__header:first-child { margin-top: 0; }
.index-section__header .head__name {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 32px);
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 80;
}
.index-section__header .head__rule {
  flex: 1;
  height: 1px;
  background: var(--rule);
  align-self: center;
}
.index-section__header .head__count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}

.index-item {
  display: flex;
  flex-direction: column;
  gap: var(--s4);
  cursor: pointer;
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.index-item:hover { transform: translateY(-4px); }
.index-item__frame {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: var(--s5);
  aspect-ratio: 3 / 4;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.index-item__frame img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  transition: transform 1.2s cubic-bezier(.2,.7,.2,1);
}
.index-item:hover .index-item__frame img {
  transform: scale(1.04);
}
.index-item__num {
  position: absolute;
  top: var(--s3);
  left: var(--s3);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}
.index-item__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.index-item__coords {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.01em;
}
.index-item__title {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-soft);
  font-variation-settings: "opsz" 14;
}
.index-item__sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ============================================================
   About + Acquire
   ============================================================ */

.about-section,
.acquire-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s9) var(--gutter) var(--s10);
  border-top: 1px solid var(--rule);
}
.about-section__inner {
  max-width: 720px;
}
.about-section__inner p {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.5;
  font-weight: 400;
  color: var(--ink);
  font-variation-settings: "opsz" 14;
}
.about-section__inner p + p {
  margin-top: var(--s5);
  font-size: 17px;
  font-family: var(--sans);
  color: var(--ink-soft);
}

.acquire-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s7);
  margin: var(--s7) 0;
}
.acquire-grid__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 var(--s2);
}
.acquire-grid p:not(.acquire-grid__label) {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.4;
  margin: 0;
}
.acquire-section__cta {
  font-family: var(--mono);
  font-size: 13px;
  margin-top: var(--s5);
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  border-top: 1px solid var(--rule);
  padding: var(--s6) 0;
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  justify-content: space-between;
  gap: var(--s5);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.footer a { border-bottom: none; }
.footer a:hover { color: var(--ink); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--s7);
    padding: var(--s8) var(--gutter);
  }
  .map-section__intro,
  .index-section__intro {
    grid-template-columns: 1fr;
    gap: var(--s4);
  }
  .nav { display: none; }
  .wordmark__sub { display: none; }
  .hero__title { font-size: clamp(44px, 11vw, 80px); }
  .map-canvas { height: 60vh; }
}

/* ============================================================
   Lightbox — click-to-zoom on the index grid
   ============================================================ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(26, 24, 22, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s5);
  cursor: zoom-out;
  animation: lightbox-fade .25s ease;
}
.lightbox[hidden] { display: none !important; }

@keyframes lightbox-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s5);
  max-width: min(92vw, 1100px);
  max-height: 100%;
  cursor: default;
}
.lightbox__image-wrap {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: var(--s5);
  max-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.lightbox__image-wrap img {
  max-width: 100%;
  max-height: calc(78vh - var(--s5) * 2);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.lightbox__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s3);
  color: var(--paper);
  text-align: center;
}
.lightbox__coords {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.04em;
}
.lightbox__sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(251, 248, 241, 0.55);
}
.lightbox__map-btn {
  margin-top: var(--s2);
  background: transparent;
  color: var(--paper);
  border: 1px solid rgba(251, 248, 241, 0.4);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 18px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.lightbox__map-btn:hover {
  background: rgba(251, 248, 241, 0.1);
  border-color: var(--paper);
}

.lightbox__close {
  position: absolute;
  top: var(--s4);
  right: var(--s4);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(251, 248, 241, 0.4);
  background: transparent;
  color: var(--paper);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.lightbox__close:hover {
  background: rgba(251, 248, 241, 0.1);
  border-color: var(--paper);
}

/* Make index items obviously clickable (subtle change of cursor) */
.index-item { cursor: zoom-in; }