:root {
  --bg: #080C11; --panel: #0F1720; --panel-2: #141F2A; --rule: #1E2C39; --recess: #060A0F;
  --ink: #DCE6EE; --ink-2: #93A7B6; --muted: #6F8595;
  --accent: #4FB6D2; --ok: #5FC08D; --warn: #E5B057; --crit: #E4655A;
  --radius: 10px; --gutter: clamp(16px, 4vw, 40px); --max: 1180px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.6 "IBM Plex Sans", system-ui, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-2); }

.top {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 24px;
  padding: 14px var(--gutter); background: rgba(8, 12, 17, .88); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.brand { color: var(--ink); font-weight: 600; letter-spacing: .02em; font-size: 17px; }
.brand { display: inline-flex; align-items: center; gap: 9px; }
.brand-mark { width: 26px; height: 26px; border-radius: 50%; flex: none; }
.top nav { display: flex; gap: 20px; margin-left: auto; flex-wrap: wrap; }
.top nav a { color: var(--ink-2); font-size: 14px; }
.top nav a:hover { color: var(--ink); text-decoration: none; }

main { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter) 64px; }
section { padding-top: 56px; scroll-margin-top: 64px; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 12px; font-weight: 600; }
h1 { font-size: clamp(30px, 5vw, 48px); letter-spacing: -.01em; max-width: 18ch; }
h2 { font-size: 24px; margin-bottom: 20px; }
h3 { font-size: 20px; }
h4 { font-size: 16px; }
.eyebrow { color: var(--accent); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 12px; }
.lede { color: var(--ink-2); font-size: 18px; max-width: 62ch; }

.hero { padding-top: 64px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  display: inline-block; padding: 11px 18px; border-radius: 8px; border: 1px solid var(--rule);
  background: var(--panel-2); color: var(--ink); font-weight: 500; font-size: 15px;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #041018; }
.btn.primary:hover { filter: brightness(1.08); }

.shots { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 260px); gap: 24px; align-items: end; }
.shots figure { margin: 0; }
.shots img { display: block; width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--rule); }
.shots figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }

.grid { display: grid; gap: 20px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 24px; min-width: 0;
}
.card p { color: var(--ink-2); }
.card.doc { color: inherit; display: block; }
.card.doc:hover { border-color: var(--accent); text-decoration: none; }
.card.doc p { margin: 0; font-size: 14px; }
.card ul { margin: 0; padding-left: 20px; color: var(--ink-2); }
.card li + li { margin-top: 6px; }
h4.ok { color: var(--ok); } h4.warn { color: var(--warn); }

.dl .btn { margin: 4px 0 16px; }
.dlrow { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.qr { background: #fff; border-radius: 8px; line-height: 0; overflow: hidden; width: max-content; }
.qr svg { width: 136px; height: 136px; }
.meta { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 14px; font-size: 12.5px; margin: 0 0 14px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; color: var(--ink); }
.hash { overflow-wrap: anywhere; color: var(--ink-2); }
.note { font-size: 13.5px; border-left: 2px solid var(--rule); padding-left: 12px; margin: 0; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: step; position: relative; padding: 18px 20px 18px 64px;
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
}
.steps li::before {
  content: counter(step); position: absolute; left: 20px; top: 16px; width: 28px; height: 28px;
  border-radius: 50%; background: var(--panel-2); border: 1px solid var(--rule);
  display: grid; place-items: center; font: 500 14px "IBM Plex Mono", monospace; color: var(--accent);
}
.steps p { margin: 4px 0 0; color: var(--ink-2); }
.steps > li { min-width: 0; }
.steps.from-zero { counter-reset: step -1; }
.steps li li {
  counter-increment: none; position: static; padding: 0; background: none; border: 0; border-radius: 0;
}
.steps li li::before { content: none; }
.steps li li + li { margin-top: 4px; }
.steps ul, .steps ol { padding-left: 22px; margin: 8px 0 0; }
.steps h3 { font-size: 17px; margin: 22px 0 6px; }

/* A pointer to the setup guide, beside the downloads. */
.guide { display: flex; align-items: center; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap; margin-top: 20px; }
.guide > div { flex: 1 1 320px; min-width: 0; }
.guide h3 { margin-bottom: 6px; }
.guide p { margin: 0; }
.guide p.eyebrow { margin-bottom: 10px; }
.guide .btn { flex: none; }
.note a { white-space: nowrap; }

/* The setup guide. */
.setup [id] { scroll-margin-top: 76px; }
.setup .prose h2 { font-size: 24px; margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--rule); }
.setup .lede { font-size: 17px; }
.setup .steps h4, .setup .steps h3, .setup .prose b { color: var(--ink); }
.callout {
  background: var(--panel); border: 1px solid var(--rule); border-left: 3px solid var(--warn);
  border-radius: var(--radius); padding: 18px 20px; margin: 28px 0 8px;
}
.callout h4 { color: var(--warn); margin: 0; }
.callout p { margin: 8px 0 0; }
.fp {
  overflow-wrap: anywhere; font-size: 13px; color: var(--ink); background: var(--recess);
  border: 1px solid var(--rule); border-radius: 8px; padding: 10px 12px; margin-top: 8px;
}
.prose pre.wrap, .prose pre.wrap code { white-space: pre-wrap; overflow-wrap: anywhere; }
.steps .dlrow { margin: 8px 0 4px; }
.steps .dlrow .btn { margin: 0; }
.changes { color: var(--ink-2); padding-left: 20px; max-width: 80ch; }
.changes li + li { margin-top: 6px; }

.docs { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; padding-top: 40px; }
.docs aside { position: sticky; top: 76px; align-self: start; display: grid; gap: 4px; }
.docs aside a { color: var(--ink-2); padding: 6px 10px; border-radius: 6px; font-size: 14px; }
.docs aside a.on, .docs aside a:hover { color: var(--ink); background: var(--panel-2); text-decoration: none; }
.prose { max-width: 78ch; min-width: 0; }
.prose h1 { font-size: 32px; max-width: none; }
.prose h2 { margin-top: 36px; font-size: 22px; }
.prose h3 { margin-top: 28px; }
.prose p, .prose li { color: var(--ink-2); }
.prose strong { color: var(--ink); }
.prose code {
  font: 13.5px "IBM Plex Mono", monospace; background: var(--panel-2); border: 1px solid var(--rule);
  border-radius: 4px; padding: 1px 5px; color: var(--ink); overflow-wrap: anywhere;
}
.prose pre {
  background: var(--recess); border: 1px solid var(--rule); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; white-space: pre;
}
.prose pre code { background: none; border: 0; padding: 0; white-space: pre; overflow-wrap: normal; }
.prose table { width: 100%; border-collapse: collapse; font-size: 14px; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.prose th { color: var(--ink); font-weight: 500; }
.prose td { color: var(--ink-2); }
.prose li.task { list-style: none; position: relative; }
.prose li.task::before {
  content: ""; position: absolute; left: -22px; top: .42em; width: 12px; height: 12px;
  border: 1.5px solid var(--ink-2); border-radius: 3px;
}
.prose blockquote { margin: 0; padding: 4px 16px; border-left: 2px solid var(--accent); }

.login { max-width: 380px; margin: 12vh auto 0; }
.login h1 { font-size: 28px; }
.login form { display: grid; gap: 10px; margin-top: 24px; }
.login label { color: var(--ink-2); font-size: 14px; }
.login input {
  font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--rule);
  border-radius: 8px; padding: 11px 12px;
}
.login input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.login button {
  font: inherit; font-weight: 500; padding: 11px; border-radius: 8px; border: 0;
  background: var(--accent); color: #041018; cursor: pointer;
}
.login .error { color: var(--crit); margin: 0; }

.foot { max-width: var(--max); margin: 0 auto; padding: 24px var(--gutter) 40px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--rule); }

@media (max-width: 900px) {
  .grid.four, .grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.two { grid-template-columns: minmax(0, 1fr); }
  .docs { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .docs aside { position: static; display: flex; flex-wrap: wrap; }
}
@media (max-width: 620px) {
  .shots { grid-template-columns: minmax(0, 1fr); }
  .shots figure.phone { max-width: 280px; }
  .grid.four, .grid.three { grid-template-columns: minmax(0, 1fr); }
  .top { gap: 12px; }
  .steps ul, .steps ol { padding-left: 18px; }
  .top nav { gap: 14px; }
  .steps li { padding-left: 56px; }
}
/* Five nav links do not fit beside the brand on a phone; there the setup
   guide is linked from the page itself. */
@media (max-width: 460px) {
  .top nav a.wide-only { display: none; }
}
@media (max-width: 380px) {
  .setup [id] { scroll-margin-top: 100px; }
}
@media (max-width: 620px) {
  .setup .steps > li { padding: 16px 14px 16px 50px; }
  .setup .steps > li::before { left: 12px; }
}

/* ---- Set up N6YYO Remote Base: the operator's guide, one step and one picture at a time ---- */
.setup-guide { max-width: 1040px; margin: 0 auto; padding-top: 48px; }
.setup-guide h1 { max-width: none; }
.setup-guide .parts { display: flex; flex-wrap: wrap; gap: 8px 12px; list-style: none; padding: 0; margin: 20px 0 8px; counter-reset: part; }
.setup-guide .parts li { counter-increment: part; }
.setup-guide .parts a { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--rule); border-radius: 999px; color: var(--ink); font-size: 15px; }
.setup-guide .parts a::before { content: counter(part); display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #041018; font-size: 13px; font-weight: 600; }
.setup-guide .parts a:hover { border-color: var(--accent); text-decoration: none; }
.setup-guide section { padding-top: 48px; }
.setup-guide h2 { display: flex; align-items: center; gap: 12px; font-size: 26px; }
.setup-guide h2 .num { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #041018; font-size: 18px; flex: none; }
.setup-guide .step { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 20px 32px; align-items: start; padding: 24px 0; border-top: 1px solid var(--rule); }
.setup-guide .step .say { grid-column: 1; }
.setup-guide .step .say h3 { font-size: 20px; margin-bottom: 8px; }
.setup-guide .step .say p, .setup-guide .step .say li { font-size: 17px; line-height: 1.6; }
.setup-guide .step .say ol { padding-left: 22px; }
.setup-guide .step .say .aside { color: var(--ink-2); font-size: 15px; }
.setup-guide figure.shot { grid-column: 2; margin: 0; }
.setup-guide figure.shot + figure.shot { grid-column: 2; }
.setup-guide figure.shot img { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--rule); background: #fff; cursor: zoom-in; }
.setup-guide figure.shot.phone img { max-width: 300px; }
.setup-guide .btn.big { padding: 14px 22px; font-size: 17px; }
.setup-guide .qr { width: 200px; margin-top: 12px; border-radius: 10px; overflow: hidden; background: #fff; }
.setup-guide .qr svg { display: block; width: 100%; height: auto; }
.setup-guide .callout.strong { border-left: 4px solid var(--warn); background: var(--panel); padding: 14px 18px; border-radius: 8px; margin: 8px 0 12px; }
.setup-guide .callout.strong p { margin: 0; font-size: 17px; }
.setup-guide ul.plain { padding-left: 20px; }
.setup-guide dl.faq dt { font-weight: 600; margin-top: 16px; font-size: 17px; }
.setup-guide dl.faq dd { margin: 4px 0 0; color: var(--ink-2); font-size: 16px; }
.setup-guide .setter { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: 15px; }
.lightbox { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px; background: rgba(4, 7, 10, .92); cursor: zoom-out; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; }
@media (max-width: 760px) {
  .setup-guide { padding-top: 28px; }
  .setup-guide .step { grid-template-columns: minmax(0, 1fr); }
  .setup-guide figure.shot, .setup-guide figure.shot + figure.shot { grid-column: 1; }
  .setup-guide figure.shot.phone img { max-width: 260px; }
}

/* Privacy policy and support: public pages, read as text. */
.legal { max-width: 72ch; padding-top: 48px; }
.legal h1 { max-width: none; }
.legal h2 { font-size: 20px; margin: 36px 0 10px; }
.legal h3 { font-size: 17px; margin: 22px 0 6px; }
.legal ul { padding-left: 22px; }
.legal li { margin: 6px 0; }
.legal p, .legal li { overflow-wrap: anywhere; }
.foot a { color: var(--ink-2); }
/* /android: the public download page. The QR code helps only on a computer. */
.sideload .card.dl { margin-top: 28px; }
.sideload .card.dl h3 { margin: 0 0 12px; }
.sideload .dlrow { margin-bottom: 18px; }
.sideload .dl .btn { margin: 0; }
.sideload-qr { display: flex; align-items: center; gap: 14px; max-width: 360px; }
.sideload-qr .qr { flex: none; width: 120px; }
.sideload-qr .qr svg { display: block; width: 100%; height: auto; }
.sideload-qr p { margin: 0; font-size: 13.5px; }
.sideload .steps { margin-top: 6px; }
.sideload .steps li { color: var(--ink-2); }
.sideload .steps b { color: var(--ink); }
@media (max-width: 620px) {
  .sideload-qr { display: none; }
  .sideload .dl .btn { display: block; text-align: center; }
  .sideload .dlrow { display: block; }
}