/* Screen Keys: a trackpad-and-keycaps world. Cool aluminium greys, one teal
   for what you can press, amber for fingertips. Layout: one centred column,
   gestures as rows of diagram, words and clip. */
:root {
  --bg: #eff1ef;
  --surface: #ffffff;
  --ink: #1b1f22;
  --muted: #59626a;
  --line: #d6dad6;
  --accent: #0a6f6a;
  --accent-ink: #ffffff;
  --finger: #e8962c;
  --cap: #fbfbfa;
  --cap-edge: #c5cac6;
  --shadow: 0 1px 2px rgb(20 30 30 / .06), 0 12px 32px -12px rgb(20 30 30 / .22);
  --display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111416; --surface: #1a1e21; --ink: #e8ebe9; --muted: #9ba4a9; --line: #2a3034;
    --accent: #3fc2b7; --accent-ink: #06201e; --finger: #f2b04a; --cap: #23282c; --cap-edge: #3a4146;
    --shadow: 0 1px 2px rgb(0 0 0 / .4), 0 16px 40px -16px rgb(0 0 0 / .7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #111416; --surface: #1a1e21; --ink: #e8ebe9; --muted: #9ba4a9; --line: #2a3034;
  --accent: #3fc2b7; --accent-ink: #06201e; --finger: #f2b04a; --cap: #23282c; --cap-edge: #3a4146;
  --shadow: 0 1px 2px rgb(0 0 0 / .4), 0 16px 40px -16px rgb(0 0 0 / .7);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.08; text-wrap: balance; margin: 0; letter-spacing: -.015em; }
h2 { font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; }
h3 { font-size: 23px; font-weight: 650; }
p { margin: 0; }
.lede { color: var(--muted); font-size: 19px; max-width: 58ch; }
.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* Top bar */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 19px/1 var(--display); color: var(--ink); text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
.top nav { display: flex; gap: 22px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--ink); }
@media (max-width: 620px) { .top nav a:not(.buy-link) { display: none; } }

/* Hero */
.hero { padding-block: 72px 40px; display: grid; gap: 40px; }
.hero h1 { font-size: clamp(42px, 7vw, 76px); font-weight: 800; max-width: 14ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-text { display: grid; gap: 22px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; }
.button {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--accent); color: var(--accent-ink);
  font: 650 17px/1 var(--display); text-decoration: none;
  padding: 15px 22px; border-radius: 12px;
  box-shadow: inset 0 -2px 0 rgb(0 0 0 / .18);
}
.button:hover { filter: brightness(1.06); }
.price-note { color: var(--muted); font-size: 15px; }
.price-note strong { color: var(--ink); font-variant-numeric: tabular-nums; }

/* A clip in a screen-like frame */
.screen {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  background: #0d1012;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  aspect-ratio: 1512 / 982;
  max-width: 100%;
}
.screen video, .screen img { display: block; width: 100%; height: 100%; object-fit: cover; }
figcaption { font-size: 14px; color: var(--muted); margin-top: 10px; }

/* Two screens in one clip: keep its own shape */
.screen.both { aspect-ratio: auto; }
.screen.both video { height: auto; }

/* Gestures */
section { padding-block: 64px; border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 14px; margin-bottom: 44px; }
.gestures { display: grid; gap: 64px; }
.gesture { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; }
.gesture:nth-child(even) .gesture-text { order: 2; }
.gesture-text { display: grid; gap: 14px; align-content: start; min-width: 0; }
.gesture-text p { color: var(--muted); }
.how { display: flex; align-items: center; gap: 14px; }
.how-name { font: 600 14px/1.3 var(--mono); color: var(--ink); }
.how-name span { display: block; color: var(--muted); font-weight: 400; }
@media (max-width: 760px) {
  .gesture { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .gesture:nth-child(even) .gesture-text { order: 0; }
}

/* The trackpad diagram: a pad, fingertips, and how they move */
.pad { width: 96px; flex: none; }
.pad .surface { fill: var(--surface); stroke: var(--cap-edge); stroke-width: 1.5; }
.pad .tip { fill: var(--finger); }
.pad .ring { fill: none; stroke: var(--finger); stroke-width: 1.5; opacity: .55; }
.pad .path { stroke: var(--muted); stroke-width: 1.5; fill: none; stroke-linecap: round; stroke-dasharray: 3 4; }
.pad .head { fill: var(--muted); }
@media (prefers-reduced-motion: no-preference) {
  .pad .tips { animation: var(--move, none) 2.4s ease-in-out infinite; }
  .pad .ring { animation: tap 2.4s ease-out infinite; transform-box: fill-box; transform-origin: center; }
}
@keyframes swipe-right { 0%, 20% { transform: translateX(-14px); opacity: 0; } 30% { opacity: 1; } 70% { transform: translateX(14px); opacity: 1; } 85%, 100% { transform: translateX(14px); opacity: 0; } }
@keyframes swipe-left  { 0%, 20% { transform: translateX(14px); opacity: 0; } 30% { opacity: 1; } 70% { transform: translateX(-14px); opacity: 1; } 85%, 100% { transform: translateX(-14px); opacity: 0; } }
@keyframes swipe-up    { 0%, 20% { transform: translateY(10px); opacity: 0; } 30% { opacity: 1; } 70% { transform: translateY(-10px); opacity: 1; } 85%, 100% { transform: translateY(-10px); opacity: 0; } }
@keyframes tap { 0%, 10% { transform: scale(.6); opacity: 0; } 18% { opacity: .7; } 32% { transform: scale(1.5); opacity: 0; } 40% { transform: scale(.6); opacity: 0; } 48% { opacity: .7; } 62%, 100% { transform: scale(1.5); opacity: 0; } }

/* Note under the gestures */
.note { margin-top: 56px; display: flex; gap: 16px; align-items: flex-start; padding: 22px 24px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.note svg { width: 26px; height: 26px; flex: none; color: var(--accent); margin-top: 2px; }
.note p { color: var(--muted); }
.note strong { color: var(--ink); }

/* Keys */
.keys { width: 100%; border-collapse: collapse; }
.keys th, .keys td { text-align: left; padding: 16px 12px 16px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.keys th { font: 600 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding-bottom: 12px; }
.table-scroll { overflow-x: auto; }
kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2.1em; height: 2.1em; padding: 0 .5em; margin-right: 4px;
  font: 500 15px/1 var(--mono);
  background: var(--cap); color: var(--ink);
  border: 1px solid var(--cap-edge); border-bottom-width: 3px; border-radius: 7px;
}
.keys-foot { margin-top: 18px; color: var(--muted); font-size: 15px; }

/* Requirements and pricing */
.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 28px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: grid; gap: 16px; align-content: start; min-width: 0; }
.panel ul { margin: 0; padding-left: 1.1em; display: grid; gap: 8px; color: var(--muted); }
.panel ul strong { color: var(--ink); font-weight: 600; }
.price { font: 800 64px/1 var(--display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.price small { font-size: 20px; font-weight: 600; color: var(--muted); letter-spacing: 0; }

/* FAQ */
.faq { display: grid; gap: 0; max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 18px; }
.faq summary { cursor: pointer; font: 650 19px/1.35 var(--display); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--muted); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 10px; color: var(--muted); max-width: 64ch; }

/* Footer */
footer { border-top: 1px solid var(--line); padding-block: 36px 48px; color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
footer a { color: var(--muted); }

/* Legal pages */
.legal { padding-block: 56px 72px; max-width: 760px; }
.legal h1 { font-size: clamp(36px, 6vw, 52px); font-weight: 800; margin-bottom: 8px; }
.legal .updated { color: var(--muted); font-size: 15px; margin-bottom: 36px; }
.legal h2 { font-size: 24px; margin: 36px 0 10px; }
.legal p, .legal li { color: var(--muted); }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 1.2em; display: grid; gap: 6px; }
.legal strong { color: var(--ink); }

/* Filled in before going live */

/* The tour, both screens tall: beside the words on a wide window, and all
   of it in sight on a laptop's screen, under the top bar */
.hero .screen.both { width: fit-content; margin-inline: auto; }
.hero .screen.both video { width: auto; max-width: 100%; max-height: calc(100svh - 140px); }
@media (min-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr) auto; align-items: center; padding-block: 32px; min-height: calc(100svh - 60px); }
  .hero h1 { font-size: clamp(40px, 5vw, 64px); }
  .hero .screen.both video { max-width: min(560px, 50vw); }
}