:root {
  --bg: #eef0ea;
  --panel: #fdfdfb;
  --ink: #1b2320;
  --muted: #5b665f;
  --line: #d8dcd1;
  --accent: #2f7d5b;
  --accent-dark: #215c43;
  --serif: "STIX Two Text", "Charter", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.55;
}

body.lightbox-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

.site-header {
  border-bottom: 1px solid rgba(29, 37, 32, 0.12);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: min(960px, calc(100% - 32px));
  min-height: 64px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #1d2520;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 900;
}

.back-link {
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.back-link:hover,
.back-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.section-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(238, 240, 234, 0.94);
  backdrop-filter: blur(8px);
}

.section-nav-inner {
  width: min(1160px, calc(100% - 32px));
  margin-inline: auto;
  padding-block: 9px;
  display: flex;
  gap: 7px;
  overflow-x: auto;
  scrollbar-width: none;
}

.section-nav-inner::-webkit-scrollbar {
  display: none;
}

.section-nav a {
  flex: 0 0 auto;
  padding: 4px 11px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 12.5px;
  text-decoration: none;
}

.section-nav a:hover,
.section-nav a:focus-visible {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.section-nav strong {
  font-weight: 700;
}

.section-nav span {
  margin-left: 3px;
  font-size: 11px;
  opacity: 0.68;
}

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.hero {
  padding: 52px 0 14px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0.26em 0 0.24em;
  font-family: var(--serif);
  font-size: clamp(34px, 5.6vw, 58px);
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.06;
}

.intro {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 2vw, 17px);
}

.collection {
  padding: 42px 0 12px;
  scroll-margin-top: 55px;
}

.collection-heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(23px, 3.2vw, 30px);
  font-weight: 600;
  letter-spacing: -0.008em;
}

.count {
  color: var(--muted);
  font-size: 12.5px;
}

.source-note {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  margin: -4px 0 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.gallery::after {
  content: "";
  flex-basis: 0;
  flex-grow: 1000000;
}

.tile {
  --ratio: 1;
  position: relative;
  flex-basis: calc(var(--ratio) * 224px);
  flex-grow: calc(var(--ratio) * 100);
  aspect-ratio: var(--ratio);
  min-width: 0;
  overflow: hidden;
  border-radius: 9px;
  background: #dfe3da;
  box-shadow: inset 0 0 0 1px rgba(27, 35, 32, 0.06);
  outline: none;
}

.tile img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: filter 220ms ease, transform 260ms ease;
}

.tile-number {
  position: absolute;
  right: 8px;
  bottom: 8px;
  min-width: 28px;
  padding: 3px 7px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 999px;
  background: rgba(18, 22, 19, 0.55);
  color: #fff;
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  text-align: center;
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.tile:hover img,
.tile:focus-visible img {
  filter: saturate(1.04) contrast(1.02);
  transform: scale(1.025);
}

.tile:hover .tile-number,
.tile:focus-visible .tile-number {
  opacity: 1;
  transform: translateY(0);
}

.tile:focus-visible {
  box-shadow: 0 0 0 3px var(--accent);
}

.footer {
  margin: 54px 0 0;
  padding: 18px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12.5px;
}

.footer a {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: rgba(13, 17, 14, 0.97);
  color: #f3f5f2;
}

.lightbox-stage {
  width: 100vw;
  height: 100vh;
  display: grid;
  place-items: center;
  padding: 68px 72px 62px;
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  display: block;
  border-radius: 5px;
  box-shadow: 0 22px 72px rgba(0, 0, 0, 0.48);
  object-fit: contain;
}

.lightbox-bar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 2;
  min-height: 58px;
  padding: 10px 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.38), transparent);
}

.lightbox-caption {
  min-width: 0;
  overflow: hidden;
  font-size: 13px;
  opacity: 0.88;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lightbox button {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  line-height: 1;
}

.lightbox button:hover,
.lightbox button:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  outline: none;
}

.lightbox-close {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  font-size: 17px;
}

.lightbox-nav {
  position: fixed;
  top: 50%;
  z-index: 2;
  width: 43px;
  height: 52px;
  display: grid;
  place-items: center;
  font-size: 22px;
  transform: translateY(-50%);
}

.lightbox-prev {
  left: 14px;
}

.lightbox-next {
  right: 14px;
}

@media (max-width: 680px) {
  .wrap {
    width: min(100% - 28px, 1160px);
  }

  .header-inner,
  .section-nav-inner {
    width: min(100% - 28px, 1160px);
  }

  .back-label {
    display: none;
  }

  .hero {
    padding-top: 40px;
  }

  .collection {
    padding-top: 34px;
  }

  .gallery {
    gap: 4px;
  }

  .tile {
    flex-basis: calc(var(--ratio) * 132px);
    border-radius: 6px;
  }

  .tile-number {
    display: none;
  }

  .lightbox-stage {
    padding: 61px 12px 72px;
  }

  .lightbox-nav {
    top: auto;
    bottom: 13px;
    width: 46px;
    height: 42px;
    transform: none;
  }

  .lightbox-prev {
    left: calc(50% - 54px);
  }

  .lightbox-next {
    right: calc(50% - 54px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .tile img,
  .tile-number {
    transition: none;
  }
}