:root {
  --black: #070708;
  --panel: #111318;
  --panel-raised: #191d24;
  --text: #f1ead8;
  --muted: #9a988f;
  --tungsten: #f0a044;
  --teal: #00b8c6;
  --blood: #971f1f;
  --steel: #383f4b;
  color-scheme: dark;
  font-family: "Avenir Next Condensed", "DIN Condensed", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--black);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(120deg, rgba(0, 184, 198, 0.1), transparent 28rem),
    radial-gradient(circle at 78% 18%, rgba(151, 31, 31, 0.32), transparent 24rem),
    var(--black);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.13;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 42px 42px;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(7, 7, 8, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(241, 234, 216, 0.08);
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--tungsten);
  color: var(--tungsten);
}

nav {
  color: var(--muted);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

main {
  position: relative;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(32px, 5vw, 80px);
  padding: 64px clamp(20px, 6vw, 88px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(4rem, 10vw, 9.5rem);
  line-height: 0.83;
  letter-spacing: 0;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(2rem, 5vw, 5rem);
  line-height: 0.92;
  letter-spacing: 0;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 10px;
  color: var(--tungsten);
  font-size: 1.4rem;
  text-transform: uppercase;
}

.lede,
.split p,
.testflight p,
article p {
  color: var(--muted);
  font-family: "Helvetica Neue", sans-serif;
  font-size: 1rem;
  line-height: 1.62;
}

.lede {
  max-width: 620px;
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid rgba(241, 234, 216, 0.2);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button.primary {
  background: var(--tungsten);
  color: var(--black);
  border-color: var(--tungsten);
}

.button.secondary {
  color: var(--text);
}

.phone-stage {
  display: grid;
  place-items: center;
}

.phone {
  width: min(340px, 82vw);
  aspect-ratio: 9 / 18.5;
  padding: 18px;
  border: 1px solid rgba(241, 234, 216, 0.18);
  border-radius: 34px;
  background: linear-gradient(180deg, #17191f, #050506);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.55), 0 0 80px rgba(0, 184, 198, 0.16);
}

.phone-top {
  margin-bottom: 18px;
  font-size: 1.4rem;
  font-weight: 800;
  text-transform: uppercase;
}

.film-frame {
  position: relative;
  display: flex;
  align-items: end;
  height: 58%;
  overflow: hidden;
  padding: 16px;
  background: #0b0d12;
  border: 1px solid rgba(240, 160, 68, 0.4);
}

.city-glow {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(145deg, transparent, rgba(0, 184, 198, 0.26)),
    radial-gradient(circle at 70% 24%, rgba(240, 160, 68, 0.75), transparent 34%),
    linear-gradient(90deg, rgba(151, 31, 31, 0.45), transparent 45%);
}

.film-frame span {
  position: relative;
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
}

.timeline {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin: 16px 0;
}

.timeline i {
  height: 46px;
  background: linear-gradient(135deg, rgba(0, 184, 198, 0.35), rgba(240, 160, 68, 0.45));
  border: 1px solid rgba(241, 234, 216, 0.12);
}

.phone button {
  width: 100%;
  height: 44px;
  border: 0;
  background: var(--tungsten);
  color: var(--black);
  font: inherit;
  font-weight: 800;
  text-transform: uppercase;
}

.workflow,
.split,
.testflight {
  padding: 72px clamp(20px, 6vw, 88px);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

article {
  min-height: 250px;
  padding: 22px;
  background: rgba(17, 19, 24, 0.88);
  border: 1px solid rgba(241, 234, 216, 0.1);
}

article span {
  display: block;
  margin-bottom: 54px;
  color: var(--blood);
  font-size: 2.8rem;
  font-weight: 900;
}

.split,
.testflight {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 44px;
  align-items: center;
  border-top: 1px solid rgba(241, 234, 216, 0.09);
}

.testflight {
  min-height: 360px;
  background: linear-gradient(90deg, rgba(151, 31, 31, 0.28), transparent);
}

@media (max-width: 820px) {
  nav {
    display: none;
  }

  .hero,
  .split,
  .testflight,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 36px;
  }

  h1 {
    font-size: clamp(3.6rem, 18vw, 6rem);
  }
}