:root {
  --ink: #e8e6ea;
  --ink-muted: #a8a0a8;
  --ink-faint: #585860;
  --paper: #202028;
  --paper-raised: #2a2a34;
  --red: #d03028;
  --red-hot: #e8483c;
  --silver: #a8a0a8;
  --steel: #585860;
  --max: 1080px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 85% -10%, rgba(208, 48, 40, 0.22), transparent 55%),
    radial-gradient(900px 600px at -10% 40%, rgba(168, 160, 168, 0.08), transparent 50%),
    linear-gradient(165deg, #18181f 0%, var(--paper) 42%, #16161c 100%);
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.5rem, 9vh, 6.5rem) clamp(1.25rem, 4vw, 2rem) clamp(3rem, 8vh, 5rem);
  min-height: 100vh;
  min-height: 100dvh;
}

.brand {
  margin: 0 0 1.1rem;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--ink);
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(1.55rem, 3.4vw, 2.15rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink-muted);
}

.lede {
  margin: 0 0 1.75rem;
  max-width: 34rem;
  color: var(--ink-muted);
  font-size: 1.08rem;
}

.lede.narrow {
  max-width: 26rem;
  margin-left: auto;
  margin-right: auto;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.35rem;
  border-radius: 10px;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: transform 180ms var(--ease), background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.button.primary {
  background: var(--red);
  color: #fff8f7;
  border: 1px solid transparent;
}

.button.primary:hover {
  background: var(--red-hot);
  transform: translateY(-1px);
}

.button.ghost {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid rgba(168, 160, 168, 0.35);
}

.button.ghost:hover {
  color: var(--ink);
  border-color: rgba(168, 160, 168, 0.7);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.app-icon {
  width: min(100%, 420px);
  height: auto;
  border-radius: 22%;
  display: block;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04),
    0 30px 80px rgba(0, 0, 0, 0.45);
  animation: settle 1.1s var(--ease) both;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vh, 5.5rem) clamp(1.25rem, 4vw, 2rem);
}

.section h2 {
  margin: 0 0 1.75rem;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}

.how {
  border-top: 1px solid rgba(168, 160, 168, 0.12);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.35rem;
  align-items: baseline;
  max-width: 40rem;
}

.steps p {
  margin: 0;
  color: var(--ink-muted);
}

.key {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--red);
  background: rgba(208, 48, 40, 0.12);
  border: 1px solid rgba(208, 48, 40, 0.28);
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  white-space: nowrap;
}

.privacy {
  text-align: center;
  border-top: 1px solid rgba(168, 160, 168, 0.12);
}

.privacy-line {
  margin: 0 0 0.75rem;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  letter-spacing: -0.02em;
}

.privacy-detail {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--ink-muted);
}

.download {
  text-align: center;
  border-top: 1px solid rgba(168, 160, 168, 0.12);
}

.download .button {
  margin-top: 0.25rem;
}

.fine {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem clamp(1.25rem, 4vw, 2rem) 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(168, 160, 168, 0.12);
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.footer a {
  color: var(--ink-muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--ink);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  color: var(--ink-muted);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@keyframes settle {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: clamp(2.5rem, 8vh, 4rem);
    text-align: left;
  }

  .hero-visual {
    order: -1;
  }

  .app-icon {
    width: min(72vw, 280px);
  }

  .brand {
    margin-top: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .app-icon,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}