:root {
  color-scheme: dark;
  --background: #090909;
  --surface: #111;
  --text: #f2f1ee;
  --muted: #858581;
  --line: #292929;
  font-family: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

html { min-width: 320px; scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(ellipse at 75% 0%, #171717 0, transparent 38rem),
    var(--background);
  font-size: 14px;
  line-height: 1.5;
}

button, a { color: inherit; font: inherit; }
a { text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 1rem;
  left: 1rem;
  padding: .65rem .9rem;
  color: #090909;
  background: #fff;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.page-layout {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 2;
  display: flex;
  width: 230px;
  flex-direction: column;
  padding: 48px 28px 28px;
  background: rgba(9, 9, 9, .92);
}

.wordmark {
  display: inline-flex;
  width: fit-content;
  flex-direction: column;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .01em;
}
.wordmark-subtitle, .nav-label, .eyebrow {
  color: var(--muted);
  font-size: .65rem;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.wordmark-subtitle { margin-top: 3px; }

.gallery-nav {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 3px;
  margin-top: 66px;
}
.nav-label { margin: 0 0 13px; }
#gallery-categories {
  display: grid;
  justify-items: start;
  gap: 3px;
}
.gallery-link {
  padding: 5px 0;
  border: 0;
  color: #a5a5a1;
  background: none;
  cursor: pointer;
  text-align: left;
  transition: color .15s ease;
}
.gallery-link:hover, .gallery-link.is-active { color: #fff; }
.gallery-link.is-active { font-weight: 700; }

.sidebar-footer {
  display: grid;
  justify-items: start;
  gap: 12px;
  margin-top: auto;
  color: var(--muted);
  font-size: .68rem;
}
.sidebar-footer a { color: var(--text); }
.sidebar-footer a:hover { text-decoration: underline; text-underline-offset: 4px; }

.gallery-main {
  width: min(100% - 230px, 1600px);
  margin-left: 230px;
  padding: 48px clamp(28px, 5vw, 82px) 72px;
}
.gallery-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}
.eyebrow { margin: 0 0 8px; }
.gallery-header h1 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -.045em;
}
.photo-count {
  flex: none;
  margin: 0 0 4px;
  color: var(--muted);
  font-size: .75rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(18px, 2.5vw, 38px);
  row-gap: 34px;
}
.photo-card[hidden] { display: none; }
.gallery-error { color: #ff9a9a; }
.photo-open {
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: var(--surface);
  cursor: zoom-in;
}
.photo-open img {
  display: block;
  width: 100%;
  aspect-ratio: 1.15 / 1;
  object-fit: cover;
  transition: transform .35s ease, opacity .2s ease;
}
.photo-open:hover img { transform: scale(1.025); opacity: .9; }
.photo-caption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 10px;
}
.photo-caption h2 { margin: 0; font-size: .8rem; font-weight: 500; }
.photo-caption span { color: var(--muted); font-size: .68rem; }

.photo-viewer {
  width: min(1100px, calc(100vw - 40px));
  max-width: none;
  max-height: calc(100dvh - 40px);
  padding: 0;
  overflow: auto;
  border: 1px solid #303030;
  color: var(--text);
  background: #101010;
}
.photo-viewer::backdrop { background: rgba(0, 0, 0, .86); }
.viewer-image-wrap {
  position: relative;
  display: grid;
  min-height: 260px;
  max-height: calc(100dvh - 240px);
  place-items: center;
  background: #050505;
}
.viewer-image {
  display: block;
  width: 100%;
  max-height: calc(100dvh - 240px);
  object-fit: contain;
}
.photo-viewer.is-loading .viewer-image { opacity: 0; }
.photo-viewer.has-image-error .viewer-image { display: none; }
.viewer-status {
  position: absolute;
  display: none;
  margin: 0;
  color: var(--muted);
  font-size: .8rem;
}
.photo-viewer.is-loading .viewer-status,
.photo-viewer.has-image-error .viewer-status { display: block; }
.viewer-close {
  position: absolute;
  z-index: 1;
  top: 12px;
  right: 12px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid #555;
  border-radius: 50%;
  color: #fff;
  background: rgba(0, 0, 0, .65);
  cursor: pointer;
  font-size: 1.6rem;
  line-height: 1;
}
.viewer-info {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 36px;
  padding: 20px 24px 24px;
}
.viewer-title { min-width: 220px; }
.viewer-title .eyebrow { margin-bottom: 5px; }
.viewer-title h2 { margin: 0; font-size: 1.05rem; font-weight: 500; }
.viewer-description { margin: 6px 0 0; color: #aaa; font-size: .78rem; }
.viewer-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 0;
}
.viewer-metadata div { min-width: 90px; }
.viewer-metadata dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.viewer-metadata dd { margin: 0; font-size: .76rem; }

@media (min-width: 1500px) {
  .photo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .sidebar {
    position: sticky;
    inset: 0 0 auto;
    width: 100%;
    padding: 18px 22px 10px;
    border-bottom: 1px solid var(--line);
  }
  .wordmark { font-size: .82rem; }
  .wordmark-subtitle { font-size: .58rem; }
  .gallery-nav {
    display: flex;
    gap: 18px;
    margin-top: 16px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .gallery-nav::-webkit-scrollbar { display: none; }
  .nav-label { display: none; }
  .gallery-link { flex: none; padding: 3px 0 10px; font-size: .8rem; }
  .sidebar-footer { display: none; }
  .gallery-main {
    width: 100%;
    margin-left: 0;
    padding: 28px 22px 48px;
  }
  .gallery-header { margin-bottom: 22px; }
}

@media (max-width: 520px) {
  .photo-grid { grid-template-columns: 1fr; row-gap: 26px; }
  .gallery-header { align-items: start; flex-direction: column; gap: 8px; }
  .photo-count { margin: 0; }
  .viewer-info { flex-direction: column; gap: 18px; padding: 18px; }
  .viewer-metadata { gap: 18px; }
  .viewer-metadata div { min-width: 72px; }
  .viewer-image-wrap { min-height: 200px; max-height: calc(100dvh - 310px); }
  .viewer-image { max-height: calc(100dvh - 310px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}