:root {
  color-scheme: dark;
  --ink: #f6f7f2;
  --muted: #b6c4cc;
  --accent: #aee9c9;
  --line: #ffffff26;
  background: #0a121b;
  color: var(--ink);
  font-family: system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-underline-offset: .24em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; }
section[id] { scroll-margin-top: 2rem; }
.wrap { width: min(calc(100% - 3rem), 71rem); margin-inline: auto; }

.skip-link {
  position: absolute;
  z-index: 1;
  top: 1rem;
  left: 1rem;
  padding: .7rem 1rem;
  background: #18312b;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header, .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-header { padding-block: 1.35rem; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .65rem; font-weight: 750; text-decoration: none; }
.brand img { border-radius: .6rem; }
nav { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem 1.3rem; }
nav a { color: var(--muted); font-size: .94rem; text-decoration: none; }
nav a:hover, .footer a:hover { color: var(--ink); text-decoration: underline; }
.language { padding: .38rem .65rem; border: 1px solid var(--line); border-radius: .4rem; color: var(--ink); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-block: clamp(3rem, 8vw, 6rem);
}
.kicker {
  display: flex;
  align-items: center;
  gap: .55rem;
  color: var(--accent);
  margin: 0 0 1rem;
  font-size: .8rem;
  font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.signal { width: .55rem; height: .55rem; border-radius: 50%; background: var(--accent); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: Georgia, serif; font-weight: 500; letter-spacing: -.045em; }
h1 { font-size: clamp(2.7rem, 6.4vw, 6.25rem); line-height: .99; margin-bottom: 1.35rem; }
h1 em { color: var(--accent); font-weight: inherit; }
h2 { font-size: clamp(2rem, 4.5vw, 3.7rem); line-height: 1.06; margin-bottom: 1.2rem; }
.intro { max-width: 31ch; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.3rem); line-height: 1.55; margin-bottom: 1.5rem; }
.button {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  padding: .82rem 1rem;
  border-radius: .45rem;
  background: var(--accent);
  color: #0a2118;
  text-decoration: none;
  font-weight: 750;
}
.button:hover { background: #d0f5e0; }
.launch { color: var(--muted); font-size: .88rem; margin: .85rem 0 0; }
.hero-visual {
  display: grid;
  justify-items: center;
  gap: .8rem;
  margin: 0;
  padding: 1.5rem 1rem 1rem;
  border-radius: 1.1rem;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(145deg, transparent 0 26px, #b8ede914 27px 28px, transparent 29px 62px),
    radial-gradient(ellipse at 70% 22%, #375b56, #152638 66%, #101c2b);
}
.phone {
  width: min(61%, 16rem);
  overflow: hidden;
  border: .4rem solid #090f17;
  border-radius: 1.4rem;
  box-shadow: 0 0 0 1px #ffffff49, 0 16px 42px #04080d9e;
}
.phone img { width: 100%; height: auto; }
figcaption { color: #d5e1e7; font-size: .75rem; text-align: center; }

.play-section, .details, .help { border-top: 1px solid var(--line); padding-block: clamp(2rem, 5vw, 4.25rem); }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; margin: 1.8rem 0 0; padding: 0; list-style: none; }
.steps li { border-top: 1px solid var(--line); padding-top: 1rem; }
.step-number { display: block; color: var(--accent); font-variant-numeric: tabular-nums; margin-bottom: 1rem; }
.steps h3 { margin-bottom: .35rem; }
.steps p, .details li, .help p, .footer { color: var(--muted); line-height: 1.55; }
.steps p { max-width: 32ch; margin-bottom: 0; }
.details, .help { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
.details ul { margin: 0; padding: 0; list-style: none; }
.details li { padding-block: .65rem; }
.details li + li { border-top: 1px solid var(--line); }
.details strong { color: var(--ink); }
.help p:last-child { margin: 0; }
.help-links { display: grid; gap: .55rem; align-self: center; }
.help-links a {
  display: flex;
  justify-content: space-between;
  gap: .7rem;
  padding: .75rem 1rem;
  border: 1px solid var(--line);
  border-radius: .45rem;
}
.help-links a:hover { border-color: var(--accent); }
.footer { border-top: 1px solid var(--line); padding-block: 1.25rem; font-size: .9rem; overflow-wrap: anywhere; }
.missing { padding-block: 4rem; }
.missing .help-links { max-width: 25rem; }

@media (max-width: 44rem) {
  .wrap { width: min(calc(100% - 2rem), 71rem); }
  .hero, .details, .help { grid-template-columns: 1fr; }
  .hero-visual { max-width: 26rem; width: 100%; justify-self: center; }
  .phone { width: min(58%, 13rem); }
}

@media (max-width: 33rem) {
  .steps { grid-template-columns: 1fr; gap: 1rem; }
  .site-header { align-items: flex-start; }
  nav { column-gap: .8rem; }
}