:root {
  --bg: #efe9df;
  --paper: #f7f2ea;
  --ink: #24212b;
  --mut: #6d6670;
  --line: #d8cfc2;
  --acc: #b5523b;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--acc); outline-offset: 4px; }
img { max-width: 100%; }

.skip {
  position: fixed; z-index: 20; top: 10px; left: 10px;
  padding: 8px 12px; background: var(--ink); color: var(--bg);
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

.wrap { width: min(100% - 40px, 1180px); margin-inline: auto; }
.k {
  margin: 0 0 14px; color: var(--mut);
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 400; margin: 0; }
h1 { font-size: clamp(44px, 6.5vw, 84px); line-height: 1; letter-spacing: -.03em; }
h1 em { color: var(--acc); }
h2 { font-size: clamp(32px, 4vw, 50px); line-height: 1.1; letter-spacing: -.02em; }

/* header */
.top {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 80px; border-bottom: 1px solid var(--line);
}
.brand { font: 600 22px var(--serif); text-decoration: none; }
.brand i { margin-left: 4px; color: var(--acc); font-weight: 400; }
nav { display: flex; gap: 22px; font-size: 14px; }
nav a { color: var(--mut); text-decoration: none; }
nav a:hover { color: var(--ink); }

/* hero */
.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; padding: 80px 0 90px;
}
.lead { max-width: 460px; margin: 24px 0 0; color: var(--mut); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; margin-top: 32px; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px;
  background: var(--ink); color: var(--bg); font-size: 14px; text-decoration: none;
  transition: transform .2s;
}
.btn:hover { transform: translateY(-2px); }
.link { font-size: 14px; text-underline-offset: 5px; text-decoration-color: var(--line); }
.mosaic { position: relative; aspect-ratio: 1; }
.mosaic img {
  position: absolute; width: 62%; border-radius: 4px;
  box-shadow: 0 30px 60px -30px rgba(58, 42, 58, .5);
  animation: rise .9s cubic-bezier(.2, .7, .2, 1) both;
}
.mosaic img:nth-child(1) { top: 4%; left: 0; }
.mosaic img:nth-child(2) { top: 30%; right: 0; animation-delay: .12s; }
.mosaic img:nth-child(3) { bottom: 4%; left: 16%; animation-delay: .24s; }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } }

/* facts */
.facts {
  display: grid; grid-template-columns: repeat(4, 1fr); margin-block: 0;
  border-block: 1px solid var(--line);
}
.facts div { padding: 20px 0; }
.facts div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.facts dt { color: var(--mut); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }
.facts dd { margin: 4px 0 0; font: 24px var(--serif); }

/* gallery */
.section { padding-top: 100px; }
.head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 24px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters button {
  padding: 8px 15px; border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--ink); font: 13px var(--sans); cursor: pointer;
  transition: background .2s, color .2s;
}
.filters button:hover { border-color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.count { margin: 20px 0 28px; color: var(--mut); font-size: 13px; }

.gal {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 48px 28px; margin: 0; padding: 0; list-style: none;
}
.card[hidden] { display: none; }
.thumb {
  display: block; width: 100%; padding: 0; border: 0; border-radius: 4px;
  overflow: hidden; background: var(--paper); cursor: zoom-in;
}
.thumb img { display: block; width: 100%; height: auto; transition: transform .6s; }
.thumb:hover img { transform: scale(1.03); }
.meta { display: flex; justify-content: space-between; gap: 12px; padding-top: 12px; }
.meta h3 { font-size: 21px; }
.meta p, .viewer p { margin: 0; color: var(--mut); font-size: 12px; }
.acts { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: 13px; }
.acts a { text-underline-offset: 4px; text-decoration-color: var(--line); }
.meta .acts a:last-child { color: var(--acc); }

/* use */
.steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin: 36px 0 0; padding: 0; list-style: none; counter-reset: s;
  border-top: 1px solid var(--line);
}
.steps li { padding: 24px 24px 0 0; color: var(--mut); font-size: 14px; counter-increment: s; }
.steps li + li { padding-left: 24px; border-left: 1px solid var(--line); }
.steps li::before {
  display: block; margin-bottom: 18px; color: var(--acc);
  font: 18px var(--serif); content: "0" counter(s);
}
.steps b { color: var(--ink); font-weight: 600; }
code {
  padding: 1px 5px; border-radius: 3px; background: var(--paper);
  font-size: 12px; word-break: break-word;
}

/* about */
.about {
  display: grid; grid-template-columns: 1fr 2fr; gap: 40px;
  margin-top: 110px; padding: 40px 0 100px; border-top: 1px solid var(--line);
}
.about p:not(.k) { max-width: 560px; color: var(--mut); }

.foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding: 28px 0; border-top: 1px solid var(--line); color: var(--mut); font-size: 12px;
}

/* viewer */
.viewer {
  width: min(100% - 24px, 1100px); max-height: calc(100dvh - 24px);
  padding: 0; border: 0; border-radius: 6px; background: var(--paper); color: var(--ink);
}
.viewer::backdrop { background: rgba(36, 33, 43, .72); }
.viewer[open] { animation: rise .35s ease both; }
.viewer figure { margin: 0; }
.viewer img { display: block; width: 100%; height: auto; max-height: 72dvh; object-fit: contain; background: var(--ink); }
.viewer figcaption {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 16px; padding: 18px 22px;
}
.viewer h3 { font-size: 24px; }
.close {
  padding: 11px 18px; border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--ink); font: 14px var(--sans); cursor: pointer;
}
.close:hover { border-color: var(--ink); }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 50px 0 60px; }
  nav { gap: 14px; font-size: 13px; }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .facts div:nth-child(4) { border-top: 1px solid var(--line); }
  .section { padding-top: 70px; }
  .gal { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps li, .steps li + li { padding: 22px 0; border-left: 0; }
  .steps li + li { border-top: 1px solid var(--line); }
  .about { grid-template-columns: 1fr; gap: 0; margin-top: 70px; padding-bottom: 70px; }
}
@media (max-width: 420px) {
  nav a[href="#use"] { display: none; }
  .meta { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}