/* Mobile-first. Base rules are for a ~320-480px phone; wider screens are added with min-width queries. */
:root {
  --bg: #12100c; --bg2: #1a1712; --ink: #f3ece0; --mute: #a39a8a; --line: #2d2820;
  --amber: #e8a53a; --amber-ink: #1a1307; --green: #6fcf97; --code: #0c0a07;
  --serif: 'Fraunces', Georgia, serif; --sans: 'Inter', system-ui, sans-serif; --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --gutter: 16px; --tap: 44px;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #faf6ee; --bg2: #f1ebdd; --ink: #231d12; --mute: #6e6554; --line: #ded5c0;
    --amber: #b9740a; --amber-ink: #fff8ea; --green: #1f8a52; --code: #fffdf8;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 64px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { max-width: 100%; height: auto; }
.wrap { width: 100%; padding-inline: max(var(--gutter), env(safe-area-inset-left)) max(var(--gutter), env(safe-area-inset-right)); margin-inline: auto; max-width: 1112px; }
section { padding: 56px 0 8px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0; letter-spacing: -.01em; overflow-wrap: anywhere; }
h2 { font-size: clamp(28px, 7.5vw, 46px); margin-bottom: 12px; }
h3 { font-size: 19px; }
code, pre { font-family: var(--mono); font-size: .875em; }
:not(pre) > code { background: var(--bg2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; overflow-wrap: anywhere; }
a { color: var(--amber); }
.sub { color: var(--mute); max-width: 62ch; margin: 0 0 24px; }
.fine { color: var(--mute); font-size: 13px; overflow-wrap: anywhere; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px max(var(--gutter), env(safe-area-inset-left)); background: color-mix(in srgb, var(--bg) 90%, transparent); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav nav { display: flex; gap: 8px; align-items: center; font-size: 14px; }
.nav nav a { color: var(--mute); text-decoration: none; min-height: var(--tap); display: inline-flex; align-items: center; padding: 0 8px; }
.nav nav a:hover { color: var(--ink); }
.nav nav a.hide-sm { display: none; }
.nav .gh { border: 1px solid var(--line); border-radius: 99px; color: var(--ink); min-height: 36px; padding: 0 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 600; font-size: 20px; color: var(--ink); text-decoration: none; min-height: var(--tap); }
.mark { width: 22px; height: 22px; border-radius: 6px; background: var(--amber); position: relative; display: inline-block; flex: none; }
.mark::after { content: ''; position: absolute; inset: 9px 3px; background: var(--amber-ink); border-radius: 2px; transform: rotate(-35deg); }

/* hero */
.hero { padding-top: 48px; }
.eyebrow { color: var(--amber); font: 500 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 16px; }
h1 { font-size: clamp(40px, 12.5vw, 92px); letter-spacing: -.025em; }
h1 em { color: var(--amber); font-style: italic; font-weight: 400; }
.lede { font-size: 17px; color: var(--mute); max-width: 60ch; margin: 20px 0 28px; }
.lede code { color: var(--ink); }
.cta { display: flex; flex-direction: column; gap: 10px; }
.btn { display: block; text-align: center; padding: 0 20px; line-height: var(--tap); min-height: var(--tap); border-radius: 10px; border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 500; transition: transform .15s, border-color .15s; }
.btn:hover { border-color: var(--amber); transform: translateY(-1px); }
.btn.primary { background: var(--amber); color: var(--amber-ink); border-color: var(--amber); }
.proof { display: grid; gap: 6px; list-style: none; padding: 0; margin: 24px 0 0; color: var(--mute); font-size: 14px; }
.proof li::before { content: '✓ '; color: var(--green); }

/* how it works */
.steps { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.steps li { background: var(--bg2); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.steps span { font: 500 13px var(--mono); color: var(--amber); }
.steps h3 { margin: 8px 0 6px; }
.steps p { margin: 0; color: var(--mute); font-size: 15px; }

/* overlay replica */
.stage { max-width: 760px; }
.window { background: var(--code); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 30px 80px -30px rgba(0,0,0,.6); }
.bar { display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line); font: 12px var(--mono); color: var(--mute); min-width: 0; }
.bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); flex: none; }
.bar span { display: none; }
.bar b { margin-left: auto; font-weight: 400; color: var(--amber); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.pane { padding: 14px; font-family: var(--mono); font-size: 13px; }
.phead { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.phead > div { min-width: 0; }
.phead strong { display: block; font-size: 15px; overflow-wrap: anywhere; }
.phead small { color: var(--mute); display: block; }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--green); font-size: 12px; flex: none; }
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: pulse 1.6s infinite; }
@keyframes pulse { 50% { opacity: .25; } }
.pane h4 { margin: 20px 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--mute); font-weight: 500; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
h4 + .row { margin-top: 0; }
.b { font: 500 13px var(--mono); min-height: var(--tap); padding: 0 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg2); color: var(--ink); cursor: pointer; transition: border-color .15s; touch-action: manipulation; }
.b:hover { border-color: var(--amber); }
.b.primary { background: var(--amber); color: var(--amber-ink); border-color: var(--amber); }
.b.chip.done { border-color: var(--green); color: var(--green); }
.pane .row .b.primary { flex: 1 1 100%; }
.log { list-style: none; margin: 0; padding: 0; min-height: 168px; }
.log li { padding: 6px 0; border-bottom: 1px dashed var(--line); color: var(--mute); animation: slide .35s ease-out; overflow-wrap: anywhere; }
.log li b { color: var(--ink); font-weight: 500; }
.log li.save b { color: var(--green); }
@keyframes slide { from { opacity: 0; transform: translateY(-6px); } }
.note { min-height: 24px; color: var(--green); font: 13px var(--mono); margin: 12px 0 0; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

/* install */
.tabs { display: flex; gap: 6px; margin-bottom: 14px; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; padding-bottom: 2px; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button { flex: none; min-height: var(--tap); background: none; border: 1px solid var(--line); color: var(--mute); padding: 0 16px; border-radius: 99px; cursor: pointer; font: 500 14px var(--sans); touch-action: manipulation; }
.tabs button[aria-selected="true"] { background: var(--amber); color: var(--amber-ink); border-color: var(--amber); }
.panel p { margin: 0 0 8px; color: var(--mute); }
/* code block: the command scrolls sideways inside itself, the Copy button never overlaps it */
pre { display: flex; align-items: flex-start; gap: 10px; margin: 0 0 8px; background: var(--code); border: 1px solid var(--line); border-radius: 12px; padding: 10px 10px 10px 14px; max-width: 100%; }
pre code { flex: 1 1 auto; min-width: 0; overflow-x: auto; white-space: pre; padding: 6px 0; -webkit-overflow-scrolling: touch; }
.cp { flex: none; min-height: 36px; font: 500 12px var(--mono); background: var(--bg2); color: var(--ink); border: 1px solid var(--line); border-radius: 8px; padding: 0 12px; cursor: pointer; touch-action: manipulation; }
.cp:hover { border-color: var(--amber); }
.manual { list-style: none; counter-reset: s; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; }
.manual > li { counter-increment: s; padding-left: 44px; position: relative; min-width: 0; }
.manual > li::before { content: counter(s); position: absolute; left: 0; top: -2px; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--amber); color: var(--amber); display: grid; place-items: center; font: 500 14px var(--mono); }
.manual h3 small { display: block; font: 400 12px var(--mono); color: var(--mute); margin-top: 4px; }
.manual p { color: var(--mute); margin: 6px 0 10px; overflow-wrap: anywhere; }
.cmds-h { margin: 40px 0 12px; }
.cmds { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; }
.cmds code { justify-self: start; max-width: 100%; overflow-wrap: anywhere; }
.cmds span { color: var(--mute); font-size: 14px; margin: 2px 0 14px; }

/* file anatomy, faq */
.anatomy { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.anatomy div { border-left: 2px solid var(--amber); padding: 4px 0 4px 14px; }
.anatomy p { margin: 4px 0 0; color: var(--mute); font-size: 15px; }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 500; padding: 14px 0; min-height: var(--tap); }
details p { color: var(--mute); margin: 0 0 14px; max-width: 70ch; }
.sample { margin-top: 24px; border: 0; }
.sample pre { display: block; max-height: 420px; overflow: auto; margin-top: 8px; padding: 14px; }
.sample pre code { display: block; overflow: visible; white-space: pre-wrap; overflow-wrap: anywhere; padding: 0; }
.faq { padding-bottom: 32px; }
footer { display: grid; gap: 10px; justify-items: start; padding: 32px 0 calc(40px + env(safe-area-inset-bottom)); margin-top: 32px; border-top: 1px solid var(--line); color: var(--mute); font-size: 14px; }
footer a { min-height: var(--tap); display: inline-flex; align-items: center; }

@media (prefers-reduced-motion: reduce) { *, ::before, ::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

/* >= 480px: a little more room */
@media (min-width: 480px) {
  :root { --gutter: 24px; }
  .cta { flex-direction: row; flex-wrap: wrap; }
  .btn { display: inline-block; }
  .proof { display: flex; flex-wrap: wrap; gap: 6px 24px; }
  .bar span { display: inline; margin-left: 8px; }
  .pane { padding: 20px; }
  .pane .row .b.primary { flex: 0 0 auto; }
}

/* >= 640px: tablets */
@media (min-width: 640px) {
  section { padding-top: 80px; }
  .nav nav a.hide-sm { display: inline-flex; }
  .nav nav { gap: 14px; }
  .hero { padding-top: 80px; }
  .lede { font-size: 20px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .anatomy { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .manual > li { padding-left: 52px; }
  .manual > li::before { width: 34px; height: 34px; }
  .manual h3 small { display: inline; margin: 0 0 0 8px; }
  .cmds { grid-template-columns: max-content minmax(0, 1fr); gap: 8px 20px; align-items: baseline; }
  .cmds span { margin: 0; }
  footer { grid-auto-flow: column; justify-content: space-between; justify-items: start; align-items: center; }
}

/* >= 960px: desktop */
@media (min-width: 960px) {
  :root { --gutter: 32px; }
  section { padding-top: 96px; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .anatomy { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .nav { padding-inline: max(var(--gutter), calc((100% - 1048px) / 2)); }
  .steps li { padding: 24px; }
}