:root {
  --green: #1f4a33;
  --green-2: #2c6447;
  --green-3: #3f8a5f;
  --cream: #f4f0dc;
  --cream-2: #ebe5c8;
  --ink: #18241d;
  --muted: #5b675f;
  --line: #d8d0ad;
  --card: #fffdf3;
  --accent: #e0a526;
  --code-bg: #18241d;
  --code-ink: #f4f0dc;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --cream: #121a15;
    --cream-2: #18231c;
    --ink: #ece8d4;
    --muted: #a3ab9f;
    --line: #2d3b32;
    --card: #1c2820;
    --code-bg: #0c120e;
    --green-3: #6cc08f;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green-3); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3 { font-family: var(--mono); line-height: 1.2; letter-spacing: -0.01em; }
h2 { font-size: 1.5rem; margin: 0 0 1rem; }
h3 { font-size: 1.05rem; margin: 0 0 .5rem; }

code { font-family: var(--mono); font-size: .9em; }
p code, li code { background: var(--cream-2); padding: .1em .35em; border-radius: 4px; }
pre code { background: none; padding: 0; color: inherit; }

img.px { image-rendering: pixelated; image-rendering: crisp-edges; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem max(16px, calc((100% - 1040px) / 2 + 16px));
  background: var(--green);
  color: #f4f0dc;
}
.brand { display: flex; align-items: center; gap: .6rem; color: inherit; text-decoration: none; font: 700 1.2rem var(--mono); }
.brand img { border-radius: 6px; }
.top nav { display: flex; gap: 1.25rem; flex-wrap: wrap; justify-content: flex-end; }
.top nav a { color: #f4f0dc; opacity: .85; text-decoration: none; font-size: .95rem; }
.top nav a:hover { opacity: 1; text-decoration: underline; }

/* Hero / install */
.hero {
  background: var(--green);
  padding: 3rem 0 3rem;
}
.hero .tag {
  display: inline-block; margin: 0 0 1rem;
  font: 600 .8rem var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent);
}
.hero h1 { color: #f4f0dc; font-size: clamp(1.8rem, 4.5vw, 2.8rem); margin: 0 0 .8rem; max-width: 22ch; }
.hero .hl { color: var(--accent); }
.hero .lede { color: #f4f0dc; opacity: .85; max-width: 52ch; margin: 0 0 2rem; }

.installer {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 var(--line), 0 18px 40px -20px rgb(0 0 0 / .35);
  overflow: hidden;
}

.tabs { display: none; border-bottom: 1px solid var(--line); background: var(--cream-2); }
.installer.js .tabs { display: flex; }
.tabs button {
  flex: 1 1 0;
  padding: .9rem 1rem;
  border: 0; border-bottom: 3px solid transparent;
  background: none; color: var(--muted);
  font: 600 1rem var(--mono);
  cursor: pointer;
}
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: var(--ink); background: var(--card); border-bottom-color: var(--green-3); }
.tabs button:focus-visible { outline: 2px solid var(--green-3); outline-offset: -4px; }

.panel { padding: 1.75rem 1.75rem .5rem; }
.panel + .panel { border-top: 1px solid var(--line); }
.installer.js .panel + .panel { border-top: 0; }
.panel-title { font-size: 1.1rem; margin: 0 0 1rem; }
.installer.js .panel-title { display: none; }

.downloads { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 1.5rem; }
.btn {
  display: inline-flex; flex-direction: column; justify-content: center;
  min-width: 250px;
  padding: .8rem 1.3rem;
  border-radius: 8px;
  background: var(--green); color: #f4f0dc;
  text-decoration: none;
  box-shadow: inset 0 -3px 0 rgb(0 0 0 / .25);
  transition: transform .08s ease, background .15s ease;
}
.btn:hover { background: var(--green-2); text-decoration: none; }
.btn:active { transform: translateY(1px); box-shadow: inset 0 -1px 0 rgb(0 0 0 / .25); }
.btn-alt { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--green-3); }
.btn-alt:hover { background: var(--cream-2); }
.btn-main { font: 700 1rem var(--mono); }
.btn-sub { font: .78rem var(--mono); opacity: .75; word-break: break-all; }
.btn.disabled { pointer-events: none; opacity: .55; }

.steps { margin: 0 0 1rem; padding-left: 1.4rem; }
.steps li { margin-bottom: .5rem; padding-left: .25rem; }
.steps li::marker { font: 700 .95rem var(--mono); color: var(--green-3); }

pre {
  margin: .6rem 0 .2rem;
  padding: .9rem 1rem;
  background: var(--code-bg); color: var(--code-ink);
  border-radius: 8px;
  overflow-x: auto;
  font-size: .9rem; line-height: 1.5;
}

.hint { color: var(--muted); font-size: .9rem; }

.first-launch {
  display: flex; align-items: center; gap: .6rem;
  margin: 0; padding: .9rem 1.75rem;
  background: var(--cream-2); border-top: 1px solid var(--line);
  font-size: .9rem; color: var(--muted);
}
.first-launch img { width: 16px; height: 16px; flex: none; }

.release-note { margin: 1.25rem 0 0; font-size: .9rem; color: #f4f0dc; opacity: .8; text-align: center; }
.release-note a { color: #f4f0dc; }

/* Sections */
main > section { padding: 4rem 0; }
.band { background: var(--cream-2); border-block: 1px solid var(--line); }

.two-col { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: start; }

.facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.facts li {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1rem 1.1rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
}
.facts img { flex: none; width: 32px; height: 32px; }
.facts strong { display: block; font-family: var(--mono); }
.facts span { color: var(--muted); font-size: .95rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 1.5rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
}
.card p { margin: 0 0 1.25rem; color: var(--muted); font-size: .95rem; }
.num {
  position: absolute; top: 1.2rem; right: 1.3rem;
  font: 700 2rem var(--mono); color: var(--line);
}
.chain {
  margin-top: auto;
  display: flex; align-items: center; gap: .5rem;
  padding: .75rem; border-radius: 8px; background: var(--cream-2);
}
.chain img { width: 32px; height: 32px; }
.chain span { color: var(--muted); font-family: var(--mono); }

.value { margin-top: 2.5rem; text-align: center; }
.value-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; margin: 1rem 0 .5rem; }
.res {
  display: flex; align-items: center; gap: .6rem;
  padding: .6rem 1.1rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  font-family: var(--mono);
}
.res img { width: 24px; height: 24px; }
.res b { color: var(--accent); }
.res b::after { content: " Bits"; color: var(--muted); font-weight: 400; font-size: .85em; }

.reqs { list-style: none; margin: 0 0 1rem; padding: 0; }
.reqs li { display: flex; gap: 1rem; padding: .55rem 0; border-bottom: 1px dashed var(--line); }
.reqs span { flex: none; width: 3.5rem; font: 700 .9rem/1.8 var(--mono); color: var(--green-3); }

/* Footer */
footer { padding: 2rem 0; background: var(--green); color: #f4f0dc; font-size: .9rem; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
footer span:first-child { display: flex; align-items: center; gap: .5rem; font-family: var(--mono); font-weight: 700; }
footer img { border-radius: 4px; }
footer a { color: #f4f0dc; }

@media (max-width: 800px) {
  .two-col, .cards { grid-template-columns: 1fr; }
  .two-col { gap: 2rem; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .top nav a:not([href="#install"]):not([href^="https"]) { display: none; }
  .hero { padding-top: 2rem; }
  .panel { padding: 1.25rem 1.1rem .25rem; }
  .first-launch { padding: .9rem 1.1rem; }
  .btn { min-width: 0; width: 100%; }
  .tabs button { padding: .8rem .4rem; font-size: .9rem; }
  main > section { padding: 3rem 0; }
}