:root {
  color-scheme: dark;
  --ink: #f4f0e7;
  --muted: #a7a49d;
  --line: #343631;
  --accent: #dcff4f;
  --surface: #20221e;
}

* { box-sizing: border-box; }

html { background: #151713; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 18%, rgba(220, 255, 79, .08), transparent 26rem),
    #151713;
  font-family: "Segoe UI", Arial, sans-serif;
  display: flex;
  flex-direction: column;
}

a { color: inherit; }

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 88px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--accent);
  font: 700 .82rem/1 "Consolas", monospace;
  letter-spacing: .18em;
  text-decoration: none;
}

nav { display: flex; gap: 28px; }
nav a {
  color: var(--muted);
  font-size: .92rem;
  text-decoration: none;
}
nav a:hover,
nav a[aria-current="page"] { color: var(--ink); }

main { flex: 1; }

.hero { padding: clamp(80px, 13vw, 168px) 0 clamp(72px, 10vw, 128px); }
.eyebrow,
time {
  color: var(--accent);
  font: 700 .76rem/1.4 "Consolas", monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 20px 0 28px;
  font-size: clamp(3.5rem, 9vw, 8.4rem);
  font-weight: 650;
  letter-spacing: -.065em;
  line-height: .86;
}

.lede {
  max-width: 550px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.button {
  display: inline-block;
  margin-top: 28px;
  padding: 14px 19px;
  color: #151713;
  background: var(--accent);
  border: 1px solid var(--accent);
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: transparent; color: var(--accent); }

.grid {
  padding-bottom: 96px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.grid article { padding: 28px 28px 28px 0; }
.grid article + article { border-left: 1px solid var(--line); padding-left: 28px; }
.grid span { color: var(--accent); font: .75rem "Consolas", monospace; }
.grid h2 { margin: 44px 0 12px; font-size: 1.3rem; }
.grid p, .prose p, .note-list p, .not-found > p { color: var(--muted); line-height: 1.65; }

.page { padding: clamp(72px, 11vw, 140px) 0 110px; }
.page h1 { font-size: clamp(3.2rem, 8vw, 7rem); }
.note-list { max-width: 760px; margin-left: auto; border-top: 1px solid var(--line); }
.note-list article { padding: 34px 0; border-bottom: 1px solid var(--line); }
.note-list h2 { margin: 12px 0; font-size: 1.55rem; }
.split { display: grid; grid-template-columns: 1.4fr .6fr; gap: 72px; align-items: end; }
.prose { padding-bottom: 14px; font-size: 1.06rem; }
.text-link { display: inline-block; margin-top: 20px; color: var(--accent); text-decoration: none; }

.not-found { padding: clamp(80px, 14vw, 180px) 0; text-align: center; }
.not-found h1 { margin-inline: auto; font-size: clamp(3.5rem, 8vw, 7rem); }
.not-found > p { margin-inline: auto; }
.not-found .error-code { color: var(--accent); font: 700 .82rem "Consolas", monospace; letter-spacing: .18em; }

footer { padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; padding: 24px 0; flex-direction: column; }
  nav { gap: 20px; }
  .grid, .split { grid-template-columns: 1fr; }
  .grid article + article { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .split { gap: 24px; }
}