:root {
  color-scheme: dark;
  --background: #050807;
  --surface: rgba(19, 31, 29, 0.78);
  --surface-strong: rgba(24, 36, 34, 0.94);
  --text: #f7fbf9;
  --muted: #aebbb6;
  --green: #31df6e;
  --turquoise: #18d2b3;
  --blue: #2097f7;
  --line: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(circle at 18% 0%, rgba(0, 109, 99, 0.34), transparent 38rem),
    radial-gradient(circle at 92% 78%, rgba(92, 18, 109, 0.22), transparent 38rem),
    linear-gradient(150deg, #06100e 0%, #080707 58%, #110719 100%);
}

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

.shell {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(24, 210, 179, 0.2));
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 0.92rem;
}

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

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.hero {
  padding: 38px 0 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin: 0 0 18px;
  padding: 0 14px;
  border: 1px solid rgba(24, 210, 179, 0.44);
  border-radius: 999px;
  color: var(--turquoise);
  background: rgba(24, 210, 179, 0.08);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.lead {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  line-height: 1.55;
}

.app-store-badge {
  display: inline-block;
  margin-top: 28px;
  line-height: 0;
}

.app-store-badge:focus-visible {
  border-radius: 10px;
  outline: 3px solid var(--turquoise);
  outline-offset: 5px;
}

.app-store-badge img {
  display: block;
  width: 190px;
  height: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.card,
.content {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(150deg, var(--surface), rgba(21, 16, 28, 0.74));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.card {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px;
  color: var(--text);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(24, 210, 179, 0.58);
}

.card h2 {
  margin: 0;
  font-size: 1.55rem;
}

.card p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.card span {
  color: var(--turquoise);
  font-weight: 700;
}

.content {
  margin-top: 34px;
  padding: clamp(24px, 5vw, 46px);
}

.content section + section {
  padding-top: 30px;
  border-top: 1px solid var(--line);
  margin-top: 30px;
}

.content h2 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.content h3 {
  margin: 22px 0 8px;
  font-size: 1.05rem;
}

.content p,
.content li {
  color: var(--muted);
  line-height: 1.7;
}

.content ul {
  padding-left: 1.25rem;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  padding: 0 22px;
  border-radius: 999px;
  color: #001a0b;
  background: var(--green);
  font-weight: 800;
  text-decoration: none;
}

.meta,
footer {
  color: #81908a;
  font-size: 0.88rem;
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 32px;
}

footer p {
  margin: 0;
}

footer .legal {
  flex-basis: 100%;
  margin-top: 4px;
  font-size: 0.72rem;
  line-height: 1.5;
}

@media (max-width: 660px) {
  .shell {
    width: min(100% - 24px, 880px);
    padding-top: 20px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 24px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 20px;
  }
}