:root {
  color-scheme: dark;
  --ink: #05060d;
  --night: #0c0f24;
  --blue: #1a6bff;
  --indigo: #3330c4;
  --fg: #f3f5f9;
  --muted: #b4b9cb;
  --glass: rgba(255, 255, 255, 0.06);
  --hairline: rgba(255, 255, 255, 0.14);
  --measure: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--ink);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h3 { font-size: 1.08rem; letter-spacing: 0; line-height: 1.3; }
p { margin: 0; }

.wrap { width: min(100% - 40px, var(--measure)); margin-inline: auto; }

/* The name is always two colors: Down in blue, Shift in white */
.ds { color: #fff; white-space: nowrap; }
.ds-down { color: var(--blue); }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 20;
  background: var(--fg); color: var(--ink); padding: 8px 14px; border-radius: 8px;
}
.skip:focus { top: 12px; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(5, 6, 13, 0.72);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap { display: flex; align-items: center; gap: 16px 28px; min-height: 68px; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.site-nav { display: flex; gap: 24px; margin-left: auto; font-size: 0.95rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--fg); }

.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 12px 26px; border-radius: 999px;
  background: var(--blue); color: #fff; font-weight: 650; text-decoration: none; text-align: center;
  transition: background 0.15s ease;
}
.button:hover { background: #3b82ff; }
.button--small { min-height: 42px; padding: 8px 18px; font-size: 0.93rem; white-space: nowrap; flex-shrink: 0; }
a:focus-visible, summary:focus-visible, video:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; }

.hero {
  background: radial-gradient(120% 90% at 85% 15%, var(--indigo) 0%, var(--night) 48%, var(--ink) 80%);
  padding: clamp(48px, 8vw, 96px) 0;
}
.hero .wrap { display: grid; gap: 48px; align-items: center; }
.hero h1 + p { font-size: clamp(1.1rem, 2vw, 1.3rem); color: #d6daea; margin: 22px 0 30px; max-width: 34em; }

.phone {
  width: min(100%, 320px); margin-inline: auto; padding: 8px;
  background: #000; border: 1px solid var(--hairline); border-radius: 46px;
  box-shadow: 0 30px 70px rgba(26, 60, 220, 0.3);
}
.phone > img, .phone > video { width: 100%; border-radius: 38px; }
.phones { display: flex; gap: 16px; justify-content: center; align-items: flex-start; }
.phones .phone { width: min(50%, 270px); margin: 0; border-radius: 34px; padding: 6px; }
.phones .phone > img { border-radius: 28px; }
.phones .phone + .phone { margin-top: 36px; }

.feature { padding: clamp(56px, 9vw, 104px) 0; border-top: 1px solid rgba(255, 255, 255, 0.06); }
.feature .wrap { display: grid; gap: 40px; align-items: center; }
.feature p + p, .feature h2 + p { margin-top: 16px; }
.feature p { color: var(--muted); }
.feature ul { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 14px; }
.feature li { padding-left: 18px; border-left: 2px solid var(--blue); color: var(--muted); }
.feature li strong, .feature p strong { color: var(--fg); font-weight: 600; }
.feature .sub { color: var(--fg); font-size: clamp(1.05rem, 1.6vw, 1.2rem); }
.shot {
  border-radius: 28px; border: 1px solid var(--hairline); overflow: hidden;
  box-shadow: 0 30px 70px rgba(26, 60, 220, 0.25);
}
.shot img, .shot video { width: 100%; }

.cards { display: grid; gap: 16px; margin-top: 36px; }
.card {
  background: var(--glass); border: 1px solid var(--hairline); border-radius: 20px; padding: 22px;
}
.card p { margin-top: 8px; font-size: 0.97rem; }

.band { background: linear-gradient(180deg, var(--ink), var(--night)); }
.walkthrough { text-align: center; }
.walkthrough .wrap { display: block; }
.walkthrough .phone { margin-top: 36px; width: min(100%, 360px); }
.walkthrough p { max-width: 36em; margin-inline: auto; }

.privacy-note { margin-top: 18px; font-size: 0.95rem; }
.feature a { color: #a9c6ff; }

.faq .wrap { max-width: 780px; display: block; }
details { border-bottom: 1px solid var(--hairline); padding: 16px 0; }
details:first-of-type { margin-top: 28px; }
summary { cursor: pointer; font-weight: 600; min-height: 32px; }
details p { margin-top: 10px; }

.closing {
  text-align: center; padding: clamp(64px, 10vw, 112px) 0;
  background: radial-gradient(90% 120% at 50% 110%, var(--indigo) 0%, var(--night) 55%, var(--ink) 90%);
}
.closing p { color: #d6daea; margin: 16px auto 30px; max-width: 32em; }
.closing .note { color: var(--muted); font-size: 0.92rem; margin: 18px auto 0; }

.site-footer { border-top: 1px solid var(--hairline); padding: 32px 0 44px; color: var(--muted); font-size: 0.9rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-bottom: 14px; }
.site-footer p + p { margin-top: 6px; }

@media (max-width: 640px) {
  .site-nav { display: none; }
  .site-header .button { margin-left: auto; }
  .button--small { padding: 8px 14px; font-size: 0.88rem; }
}
@media (min-width: 900px) {
  .hero .wrap, .feature .wrap { grid-template-columns: 1.1fr 0.9fr; gap: 72px; }
  .feature--flip .wrap { grid-template-columns: 0.9fr 1.1fr; }
  .feature--flip .media { order: -1; }
  .walkthrough .wrap, .faq .wrap { grid-template-columns: none; }
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.feature .wrap--text { display: block; }

/* Centered text over a row of three phones, each showing the lower two thirds of the screen */
.feature--centered .wrap { display: block; text-align: center; }
.feature--centered .intro { max-width: 46em; margin-inline: auto; }
.docks {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(12px, 2.5vw, 32px);
  max-width: 1040px; margin: 48px auto 0;
  background: radial-gradient(60% 55% at 50% 60%, rgba(26, 60, 220, 0.32), transparent 75%);
}
.phone--crop {
  width: 100%; margin: 0; padding: 0 7px 7px; border-top: 0; border-radius: 0 0 40px 40px; box-shadow: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 16%);
  mask-image: linear-gradient(to bottom, transparent, #000 16%);
}
.phone--crop > img { aspect-ratio: 720 / 1040; object-fit: cover; object-position: bottom; border-radius: 0 0 33px 33px; }
@media (max-width: 640px) {
  /* Too small three across: swipe between them */
  .docks {
    grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 74%;
    overflow-x: auto; scroll-snap-type: x mandatory; padding: 0 13% 8px; margin-inline: -20px;
  }
  .phone--crop { scroll-snap-align: center; }
}
@media (max-width: 360px) {
  .brand { font-size: 1rem; gap: 8px; }
  .brand img { width: 26px; height: 26px; }
  .button--small { padding: 8px 12px; font-size: 0.8rem; }
}