:root {
  --bg: #000;
  --fg: #e8ecef;
  --dim: #7d868c;
  --line: #1c2226;
  --scale: linear-gradient(90deg, #1b3cff 0%, #1aa7ff 22%, #19d3c5 40%, #3fdc5a 55%, #d6e83a 72%, #ffb21e 86%, #ff5a1f 100%);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--bg); color: var(--fg); -webkit-font-smoothing: antialiased; }
body { font: 17px/1.65 var(--sans); }
a { color: inherit; text-decoration: none; border-bottom: 1px solid var(--line); transition: border-color .2s; }
a:hover { border-color: var(--fg); }
img { display: block; width: 100%; height: auto; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.label { font: 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }

/* nav */
nav { position: absolute; inset: 0 0 auto; z-index: 2; }
nav .wrap { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.mark { font: 600 15px/1 var(--mono); letter-spacing: .02em; border: 0; }
.mark span { color: var(--dim); }
nav ul { display: flex; gap: 26px; list-style: none; }
nav ul a { font: 12px/1 var(--mono); color: var(--dim); border: 0; }
nav ul a:hover { color: var(--fg); }

/* hero */
.hero { position: relative; min-height: 92vh; display: flex; align-items: flex-end; overflow: hidden; }
.hero img { position: absolute; inset: 0; height: 100%; object-fit: cover; opacity: .9; }
.hero::after { content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 0% 100%, rgba(0,0,0,.85) 0%, rgba(0,0,0,.5) 45%, rgba(0,0,0,0) 75%),
    linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,0) 30%, rgba(0,0,0,0) 55%, #000 100%); }
.hero .label { color: #c3cacd; }
.hero h1, .hero .tag, .hero .label { text-shadow: 0 1px 18px rgba(0,0,0,.75), 0 0 2px rgba(0,0,0,.5); }
.hero .wrap { position: relative; z-index: 1; width: 100%; padding-bottom: 64px; }
h1 { font: 600 clamp(44px, 8vw, 104px)/.95 var(--sans); letter-spacing: -.045em; }
.tag { margin-top: 18px; font-size: clamp(17px, 2vw, 21px); color: #c9d0d4; max-width: 30ch; }

/* legend */
.legend { margin-top: 44px; max-width: 360px; }
.legend .bar { height: 3px; background: var(--scale); border-radius: 2px; }
.legend .ticks { display: flex; justify-content: space-between; margin-top: 8px; font: 10px/1 var(--mono); color: var(--dim); }
.legend .title { text-align: center; margin-bottom: 8px; font: 10px/1 var(--mono); color: var(--dim); letter-spacing: .08em; }

/* sections */
section { padding: 120px 0 0; }
.grid { display: grid; grid-template-columns: 220px 1fr; gap: 40px; }
.grid p + p { margin-top: 1.1em; }
.lead { font-size: clamp(20px, 2.4vw, 26px); line-height: 1.45; letter-spacing: -.01em; max-width: 34ch; }
.body { color: #b9c1c6; max-width: 58ch; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 8px; }
.step { background: var(--bg); padding: 28px 24px 32px; }
.step .n { font: 11px/1 var(--mono); color: var(--dim); }
.step h3 { font-size: 17px; font-weight: 600; margin: 22px 0 8px; }
.step p { font-size: 15px; color: #a9b1b6; }

.stills { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 120px; }
.stills figure { position: relative; }
.stills figcaption { margin-top: 10px; font: 11px/1.4 var(--mono); color: var(--dim); }

.cta { display: inline-block; font: 13px/1 var(--mono); letter-spacing: .04em; color: #000; background: var(--fg);
       border: 0; border-radius: 999px; padding: 16px 24px; transition: background .2s; }
.cta:hover { background: #fff; border: 0; }

/* footer */
footer { margin-top: 140px; border-top: 1px solid var(--line); }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-top: 28px; padding-bottom: 40px; font: 12px/1.6 var(--mono); color: var(--dim); }
footer .bar { height: 2px; background: var(--scale); opacity: .8; }
footer a { border: 0; }
footer a:hover { color: var(--fg); }
footer .links { display: flex; gap: 22px; }

/* legal pages */
.doc { padding-top: 150px; max-width: 720px; }
.doc h1 { font-size: clamp(36px, 5vw, 56px); }
.doc .meta { margin: 16px 0 56px; }
.doc h2 { font-size: 18px; font-weight: 600; margin: 48px 0 12px; letter-spacing: -.01em; }
.doc p, .doc li { color: #b9c1c6; }
.doc p + p { margin-top: 1em; }
.doc ul { margin: 12px 0 0 1.1em; }
.doc li + li { margin-top: 6px; }
.doc code { font: 14px var(--mono); color: var(--fg); }

@media (max-width: 760px) {
  body { font-size: 16px; }
  nav ul { gap: 18px; }
  .grid { grid-template-columns: 1fr; gap: 18px; }
  .steps, .stills { grid-template-columns: 1fr; }
  section { padding-top: 88px; }
  .hero { min-height: 86vh; }
  .hero img { object-position: 58% 45%; }
}