:root {
  color-scheme: dark;
  --bg: #121110;
  --text: #ece6dc;
  --strong: #e3dbcf;
  --prose: #ddd5c8;
  --body: #d9d1c4;
  --soft: #d8cfc1;
  --nav: #bdb5a8;
  --muted: #a59d90;
  --dim: #8f877b;
  --underline: #6d665d;
  --sep: #5f5850;
  --rule: #2a2622;
  --serif: 'Newsreader', Georgia, serif;
  --sans: 'Source Sans 3', system-ui, sans-serif;
  --gutter: 56px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: var(--underline); text-underline-offset: 4px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }

.page { max-width: 1280px; margin: 0 auto; }
.pad { padding-left: var(--gutter); padding-right: var(--gutter); }
.dot { color: var(--sep); margin: 0 10px; }

/* header and footer */
.top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px 28px; padding-top: 20px; padding-bottom: 20px; }
.top .name { font: 22px var(--serif); text-decoration: none; }
.top nav { display: flex; flex-wrap: wrap; gap: 6px 28px; font-size: 15px; color: var(--nav); }
.top nav a { text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--text); }
.top nav a:hover { text-decoration: underline; text-decoration-color: var(--underline); }
.foot { padding-top: 22px; padding-bottom: 28px; font-size: 14px; color: var(--dim); }

.band { width: 100%; height: clamp(220px, 34vw, 430px); object-fit: cover; }
.more { display: inline-block; margin-top: 10px; font: 15px var(--sans); color: var(--soft); }

/* homepage */
.hero figcaption { padding-top: 8px; font: italic 14px var(--serif); color: var(--dim); text-align: right; }
.hello { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; padding-top: 28px; padding-bottom: 64px; }
.who { display: flex; gap: 24px; align-items: center; }
.avatar { width: 112px; height: 112px; border-radius: 50%; object-fit: cover; object-position: 50% 28%; flex: none; }
.who h1 { font: 400 clamp(44px, 5vw, 60px)/1 var(--serif); letter-spacing: -0.01em; }
.who p { margin-top: 10px; font-size: 17px; color: var(--muted); }
.intro p { font: 20px/1.55 var(--serif); }
.intro p + p { margin-top: 12px; }
.intro .links { margin-top: 18px; font: 16px var(--sans); color: var(--soft); }
.intro .links, .contact .rest { display: flex; flex-wrap: wrap; align-items: baseline; row-gap: 6px; }
.intro .links a, .contact .rest a { white-space: nowrap; }

.section { padding-top: 56px; padding-bottom: 8px; border-top: 1px solid var(--rule); }
.section > h2 { margin-bottom: 28px; font: 400 36px var(--serif); }
.work { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; margin-bottom: 44px; }
.work img { width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }
.work h3 { font: 400 36px/1.1 var(--serif); }
.work .meta { margin: 6px 0 12px; font-size: 15px; color: var(--muted); }
.work p:not(.meta) { font: 18px/1.55 var(--serif); color: var(--body); }
.also { margin: -8px 0 48px; font: 18px/1.55 var(--serif); color: var(--muted); }

.levels { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 48px; }
.levels img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; object-position: 50% 0; }
.levels h3 { margin-top: 16px; font: 400 28px var(--serif); }
.levels p { margin-top: 4px; font: 17px/1.55 var(--serif); color: var(--body); }
.levels.compact { gap: 24px; margin-bottom: 0; }
.levels.compact h3 { margin-top: 12px; font-size: 22px; }
.levels.compact .more { margin-top: 4px; }

.contact { padding-top: 56px; padding-bottom: 64px; border-top: 1px solid var(--rule); }
.contact h2 { margin-bottom: 10px; font: 400 36px var(--serif); }
.contact .line { margin-bottom: 14px; font: 20px/1.5 var(--serif); }
.contact .email { font: 400 clamp(26px, 4vw, 40px) var(--serif); overflow-wrap: anywhere; }
.contact .rest { margin-top: 14px; font-size: 17px; color: var(--soft); }

/* project and level pages */
.head { padding-top: 28px; }
.back { font-size: 15px; color: var(--nav); }
.head h1 { margin: 12px 0 8px; font: 400 clamp(40px, 5vw, 56px)/1.05 var(--serif); }
.head .meta { font-size: 18px; color: var(--soft); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 64px; align-items: start; }
.body { padding-top: 40px; padding-bottom: 16px; }
.main h2 { margin-bottom: 14px; font: 400 30px var(--serif); }
.main > section + section { margin-top: 44px; }
.prose { font: 19px/1.65 var(--serif); color: var(--prose); }
.prose + .prose { margin-top: 14px; }
.item + .item { margin-top: 22px; }
.item h3 { margin-bottom: 4px; font: 600 17px var(--sans); }
.item p, .item li { font: 18px/1.6 var(--serif); color: var(--body); }
.item p + ol { margin-top: 12px; }
.bullets { padding-left: 20px; }
.bullets li + li { margin-top: 4px; }
.steps { list-style: none; counter-reset: step; }
.steps li { position: relative; padding-left: 34px; counter-increment: step; }
.steps li + li { margin-top: 10px; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 3px; font: 15px var(--sans); color: var(--muted); }
.steps strong { display: block; font: 600 16px var(--sans); color: var(--text); }

.facts { position: sticky; top: 32px; padding-left: 28px; border-left: 1px solid var(--rule); }
.facts dl { display: grid; gap: 14px; }
.facts dt { font-size: 14px; color: var(--dim); }
.facts dd { font: 17px/1.45 var(--serif); color: var(--strong); }
.facts ul { list-style: none; }
.facts .note { display: block; color: var(--muted); }
.facts li + li { margin-top: 2px; }
.facts .pairs li + li { margin-top: 8px; }

.expansion { display: grid; grid-template-columns: 200px 1fr; gap: 22px; align-items: start; }
.expansion + .expansion { margin-top: 20px; }
.expansion img { width: 100%; aspect-ratio: 460 / 215; object-fit: cover; }
.expansion h3 { margin-bottom: 4px; font: 600 17px var(--sans); }
.expansion p { font: 17px/1.55 var(--serif); color: var(--body); }
.main .lead { margin-bottom: 22px; }

.next { display: grid; grid-template-columns: 260px 1fr; gap: 28px; align-items: center; margin-top: 40px; padding: 28px var(--gutter); border-top: 1px solid var(--rule); text-decoration: none; }
.next img { width: 100%; aspect-ratio: 13 / 6; object-fit: cover; }
.next small { display: block; font-size: 15px; color: var(--muted); }
.next .title { font: 400 32px var(--serif); text-decoration: underline; text-decoration-color: var(--underline); text-underline-offset: 4px; }
.next:hover .title { text-decoration-color: currentColor; }

/* level design page */
.opening { max-width: calc(760px + 2 * var(--gutter)); padding-top: 32px; padding-bottom: 48px; }
.jump { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 20px; font-size: 16px; color: var(--soft); }
.area { padding-bottom: 56px; }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 36px; }
.gallery img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: opacity .15s; }
.gallery a:hover img { opacity: .85; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 40px; }
.principles h3 { margin-bottom: 6px; font: 600 17px var(--sans); }
.principles p { font: 17px/1.55 var(--serif); color: var(--body); }
.principles + h2 { margin-top: 44px; }

/* 404 */
.missing { display: flex; flex-direction: column; justify-content: center; min-height: 60vh; padding-top: 56px; padding-bottom: 56px; }
.missing .code { font: 400 120px/1 var(--serif); color: var(--dim); }
.missing h1 { margin: 10px 0; font: 400 44px var(--serif); }
.missing p { max-width: 620px; font: 20px/1.5 var(--serif); color: var(--body); }
.missing .more { align-self: flex-start; margin-top: 22px; font-size: 17px; }

@media (max-width: 860px) {
  :root { --gutter: 20px; }
  /* Shorter than the screenshots' 16:9, cropped from the bottom, so their watermark stays out of frame. */
  .band { height: 46vw; object-position: 50% 0; }
  .hello, .work, .split { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .hello { padding-bottom: 48px; }
  .work { margin-bottom: 48px; }
  .work h3 { font-size: 30px; }
  .levels, .principles { grid-template-columns: minmax(0, 1fr); }
  .gallery { grid-template-columns: 1fr 1fr; gap: 8px; }
  .facts { position: static; padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--rule); }
  .expansion { grid-template-columns: 120px 1fr; gap: 16px; }
  .next { grid-template-columns: 120px 1fr; gap: 16px; }
  .next .title { font-size: 24px; }
  .hero figcaption { text-align: left; }
  .section > h2, .contact h2 { font-size: 32px; }
}

@media (max-width: 480px) {
  .who { gap: 18px; }
  .avatar { width: 84px; height: 84px; }
  .who h1 { font-size: 38px; }
  .intro p { font-size: 19px; }
  .intro .links .dot, .contact .rest .dot { display: none; }
  .intro .links, .contact .rest { column-gap: 22px; }
}