:root {
  --paper: #eef2f5;
  --panel: #ffffff;
  --ink: #14202b;
  --muted: #53657a;
  --line: #d3dce4;
  --chassis: #1f2b36;
  --chassis-2: #2b3a48;
  --signal: #0b63ce;
  --signal-dark: #084a9c;
  --led-up: #31c48d;
  --led-fast: #f5a524;
  --led-off: #44586a;
  --radius: 10px;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --data: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.125rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--signal); text-underline-offset: 3px; }
a:hover { color: var(--signal-dark); }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; border-radius: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 1rem; top: -4rem; background: var(--ink); color: #fff; padding: .6rem 1rem; border-radius: 6px; z-index: 20; }
.skip:focus { top: 1rem; }

.wrap { width: min(1120px, 100% - 3rem); margin-inline: auto; }

h1, h2, h3 { font-family: var(--display); line-height: 1.1; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0; }

/* header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(238, 242, 245, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .75rem; }
.brand { display: flex; align-items: center; gap: .6rem; font: 800 1.25rem var(--display); color: var(--ink); text-decoration: none; }
.site-header nav { display: flex; align-items: center; gap: 1.4rem; font-size: 1rem; }
.site-header nav a { color: var(--ink); text-decoration: none; }
.site-header nav a:hover { color: var(--signal); }
.site-header .nav-cta { background: var(--signal); color: #fff; padding: .45rem 1rem; border-radius: 999px; font-weight: 600; }
.site-header .nav-cta:hover { background: var(--signal-dark); color: #fff; }

/* buttons */
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }
.btn { display: inline-block; padding: .8rem 1.4rem; border-radius: 8px; border: 1.5px solid var(--ink); color: var(--ink); font-weight: 600; text-decoration: none; background: transparent; }
.btn:hover { background: var(--ink); color: #fff; }
.btn.primary { background: var(--signal); border-color: var(--signal); color: #fff; }
.btn.primary:hover { background: var(--signal-dark); border-color: var(--signal-dark); }

/* hero */
.hero { padding-block: clamp(3rem, 8vw, 5.5rem) 0; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 800; max-width: 14ch; letter-spacing: -0.025em; }
.lede { max-width: 38em; margin-top: 1.4rem; font-size: 1.25rem; color: #2c3d4e; }
.fine { margin-top: 1rem; font-size: 1rem; color: var(--muted); }

/* sections */
.band { background: var(--panel); border-block: 1px solid var(--line); margin-top: clamp(3rem, 8vw, 5.5rem); padding-block: clamp(3rem, 7vw, 5rem); }
.two { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.intro p { margin-top: 1rem; color: #2c3d4e; max-width: 30em; }

.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; }
.steps li { counter-increment: step; position: relative; padding: 0 0 1.8rem 3.4rem; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: -.1rem; width: 2.2rem; height: 2.2rem; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: #fff; font: 700 1rem var(--display); }
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 1.05rem; top: 2.3rem; bottom: .3rem; width: 2px; background: var(--line); }
.steps p { margin-top: .35rem; color: #2c3d4e; }

.window { margin: 0; background: var(--chassis); border-radius: 12px; overflow: hidden; box-shadow: 0 24px 50px -28px rgba(20, 32, 43, .7); }
.window-bar { display: flex; gap: .4rem; padding: .7rem .9rem; }
.window-bar i { width: 10px; height: 10px; border-radius: 50%; background: #4a5d6f; }
.window img { width: 100%; background: #fff; }
.hero .shots { margin-top: clamp(2.5rem, 6vw, 4rem); }
.hero .caption { margin-top: .8rem; font-size: 1rem; color: var(--muted); }
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-top: 2rem; }
.shots .scroll { overflow-x: auto; background: #fff; }
.shots figcaption { padding: .8rem 1rem; font-size: .95rem; color: #c3cfdb; }

.fields { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 2.2rem; }
.fields > div { border-top: 3px solid var(--ink); padding-top: 1rem; }
.fields ul { list-style: none; margin: .8rem 0 0; padding: 0; font-size: 1.02rem; color: #2c3d4e; }
.fields li + li { margin-top: .5rem; }

.reviews { padding-block: clamp(3rem, 8vw, 5.5rem) 0; }
.quotes { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 1.5rem; margin-top: 2rem; }
blockquote { margin: 0; padding: 1.4rem 1.5rem; background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--signal); border-radius: var(--radius); display: flex; flex-direction: column; justify-content: space-between; gap: 1.2rem; }
blockquote p { font: 700 1.35rem/1.3 var(--display); }
blockquote:first-child p { font-size: 1.7rem; }
blockquote footer { font-size: .95rem; color: var(--muted); }
.more { margin-top: 1.25rem; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; padding-block: 1rem; border-top: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 1px solid var(--line); }
.timeline time { color: var(--muted); font-size: 1rem; padding-top: .15rem; }
.timeline p { margin-top: .25rem; color: #2c3d4e; }

.download { padding-block: clamp(3rem, 8vw, 5.5rem); }
.download p { margin-top: .9rem; color: #2c3d4e; max-width: 34em; }

.site-footer { background: var(--chassis); color: #c3cfdb; padding-block: 2rem; font-size: 1rem; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; }
.site-footer a { color: #e6edf3; }
.site-footer a:hover { color: #fff; }

/* responsive */
@media (max-width: 900px) {
  .site-header nav a:not(.nav-cta) { display: none; }
  .two { grid-template-columns: 1fr; }
  .fields { grid-template-columns: repeat(2, 1fr); }
  .quotes { grid-template-columns: 1fr; }
  .shots { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .wrap { width: min(1120px, 100% - 2rem); }
  .fields { grid-template-columns: 1fr; }
  .shots img { min-width: 560px; }
  .timeline li { grid-template-columns: 1fr; gap: .2rem; }
  .btn { width: 100%; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}