:root {
  --desk: #1c2124; --foot: #ffffff; --code: "Geist Mono", monospace; --pane: #f8fafc; --bar: #eef2f7; --line: #d3dae4;
  --text: #1d2633; --dim: #636e7f; --key: #6d3fe0; --str: #0b7a52; --prop: #b4410c; --caret: #1d2633;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; background: var(--desk); color: var(--text); font-family: var(--code);
       display: grid; grid-template-rows: 1fr auto; }
main { display: grid; place-items: center; padding: clamp(16px, 5vw, 64px); }
.hero-logo { width: clamp(220px, 23vw, 300px); color: #fff; margin: 0; }
.stack { width: min(100%, 920px); display: grid; gap: clamp(24px, 3.5vw, 40px); }
.window { width: 100%; background: var(--pane); border: 1px solid rgba(0, 0, 0, .12); border-radius: 12px;
          box-shadow: 0 34px 70px -28px rgba(0, 0, 0, .8); overflow: hidden; }
.tabs { display: flex; align-items: center; gap: 18px; background: var(--bar); border-bottom: 1px solid var(--line); padding: 0 18px; height: 52px; }
.tab-mark { width: 24px; aspect-ratio: 170.08 / 167.18; flex: none; background: var(--text); -webkit-mask: url(mark.svg) center / contain no-repeat; mask: url(mark.svg) center / contain no-repeat; }
.tab { font: 500 14px var(--code); padding: 0 16px; height: 100%; display: flex; align-items: center;
       background: var(--pane); border-inline: 1px solid var(--line); margin-bottom: -1px; }
pre { margin: 0; padding: clamp(18px, 3vw, 32px) 0; font: 400 clamp(13px, 1.5vw, 18px)/1.9 var(--code);
      counter-reset: ln; overflow: hidden; }
.ln { display: block; padding-left: 4.2em; padding-right: 1.2em; position: relative; white-space: pre-wrap; text-indent: -2ch; padding-left: calc(4.2em + 2ch); min-height: 1.9em; }
.ln::before { counter-increment: ln; content: counter(ln); content: counter(ln) / ""; position: absolute; left: 0; width: 2.8em; text-align: right; color: var(--dim); text-indent: 0; }
.k { color: var(--key); } .b { color: #0b62c4; font-weight: 600; } .s { color: var(--str); } .p { color: var(--prop); } .c { color: var(--dim); font-style: italic; }
.s a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.caret { display: inline-block; width: .55em; height: 1.2em; vertical-align: -.25em; background: var(--caret); animation: blink 1s steps(1) 5; }
@keyframes blink { 50% { opacity: 0; } }
.typed .ln { visibility: hidden; }
.typed .ln.on { visibility: visible; }
footer { display: flex; justify-content: center; gap: 24px; padding: 0 16px 24px; font-size: 14px; }
footer a { color: var(--foot, #000); text-decoration: none; }
footer a:hover { opacity: .75; }
@media (max-width: 600px) {
  main { padding: 16px 12px; }
  .window { min-width: 0; }
  pre { font-size: 14px; }
  .ln { overflow-wrap: anywhere; }
  main { grid-template-rows: auto 1fr; place-items: stretch; padding-top: 20px; gap: 24px; }
  .stack { display: contents; }
  .topbar { align-self: start; }
  .window { align-self: center; }
  .hero-logo { width: 200px; }
  .ln { padding-left: calc(2.6em + 2ch); }
  .ln::before { width: 1.8em; }
}
@media (max-width: 330px) {
  .logo-link { flex: 1; }
  .hero-logo { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } }