:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #eef1f5;
  --text: #1f2227;
  --muted: #687080;
  --soft: #7e8594;
  --gold: #a67c45;
  --line: #dee2e8;
  --button: #677288;
  --shadow-raised: 18px 22px 44px -10px rgba(115, 128, 148, 0.2),
    -14px -14px 30px 0 rgba(255, 255, 255, 0.9);
  --shadow-soft: 10px 12px 24px -7px rgba(115, 128, 148, 0.16),
    -8px -8px 20px 0 rgba(255, 255, 255, 0.85);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Avenir Next", Inter, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
}

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

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
  padding: 34px 28px;
}

.brand {
  align-items: center;
  display: flex;
  gap: 18px;
  letter-spacing: 2.2px;
  font-size: 13px;
  color: #586071;
}

.brand img {
  height: 38px;
  width: auto;
}

.brand b,
footer span {
  font-weight: 600;
}

.brand i,
footer i {
  color: var(--gold);
  font-style: normal;
  margin: 0 8px;
}

.brand em {
  color: var(--gold);
  font-style: normal;
}

nav {
  align-items: center;
  display: flex;
  gap: 28px;
  color: #586071;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.nav-buy {
  color: var(--gold);
}

.hero,
.section,
footer {
  margin: 0 auto;
  max-width: 1180px;
  padding-left: 28px;
  padding-right: 28px;
}

.hero {
  align-items: center;
  display: grid;
  gap: 70px;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 760px;
  padding-bottom: 90px;
  padding-top: 44px;
}

.eyebrow {
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  margin: 0 0 28px;
  text-transform: uppercase;
}

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

h1 {
  color: #586071;
  font-size: clamp(44px, 5vw, 74px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.08;
  margin-bottom: 28px;
}

h1 span {
  font-style: italic;
}

h2 {
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.15;
  margin-bottom: 28px;
}

h3 {
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 12px;
}

.lead,
.section > p,
.buy-copy p,
.founder-note p,
details p {
  color: var(--soft);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 36px 0 20px;
}

.button {
  align-items: center;
  border-radius: 10px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 700;
  justify-content: center;
  letter-spacing: 3px;
  min-height: 54px;
  padding: 0 28px;
  text-transform: uppercase;
}

.primary {
  background: var(--button);
  color: #fff;
  box-shadow: -4px -4px 10px rgba(255, 255, 255, 0.55),
    8px 10px 18px -2px rgba(87, 99, 125, 0.35);
}

.secondary {
  color: #586071;
}

.note,
.fine-print {
  color: var(--muted);
  font-size: 14px;
}

.hero-visual {
  background: var(--surface);
  border-radius: 2px;
  box-shadow: var(--shadow-raised);
  padding: 90px 44px;
}

.device-frame {
  background: #0c0d0f;
  border-radius: 6px;
  box-shadow: 22px 26px 42px -12px rgba(102, 115, 138, 0.25);
  padding: 8px;
}

.device-frame img {
  border-radius: 2px;
  width: 100%;
}

.section {
  border-top: 1px solid var(--line);
  padding-bottom: 110px;
  padding-top: 110px;
}

.intro {
  text-align: center;
}

.intro > p:not(.eyebrow),
.ecosystem > p,
.founder-note p {
  margin-left: auto;
  margin-right: auto;
  max-width: 760px;
}

.three-up,
.habit-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 70px;
}

.three-up article,
.habit-grid article,
.checkout-card,
details {
  background: var(--surface);
  border-radius: 28px;
  box-shadow: var(--shadow-soft);
  padding: 34px;
}

.three-up p,
.habit-grid p {
  color: var(--soft);
  margin-bottom: 0;
}

.product-proof,
.buy-section {
  align-items: center;
  display: grid;
  gap: 70px;
  grid-template-columns: 0.9fr 1.1fr;
}

.proof-grid {
  display: grid;
  gap: 28px;
}

.device-frame.small {
  padding: 7px;
}

figcaption {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 2px;
  margin-top: 18px;
  text-align: center;
  text-transform: uppercase;
}

.habits h2 {
  max-width: 760px;
}

.habit-grid {
  grid-template-columns: repeat(2, 1fr);
}

.ecosystem {
  text-align: center;
}

.ecosystem-row {
  align-items: center;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 38px 1fr 38px 1fr 38px 1fr;
  margin-top: 58px;
}

.ecosystem-row span {
  background: var(--surface);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  color: #586071;
  font-weight: 600;
  padding: 22px 14px;
}

.ecosystem-row i {
  background: var(--gold);
  display: block;
  height: 1px;
}

.buy-section {
  align-items: start;
}

.buy-copy ul {
  color: var(--soft);
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.buy-copy li::before {
  color: var(--gold);
  content: "•";
  margin-right: 10px;
}

.checkout-card {
  justify-self: end;
  max-width: 420px;
  width: 100%;
}

.price {
  color: var(--text);
  font-size: 34px;
  margin-bottom: 26px;
}

stripe-buy-button {
  display: block;
  margin: 18px 0;
  min-height: 48px;
}

.founder-note {
  text-align: center;
}

.faq h2 {
  margin-bottom: 48px;
}

details {
  margin-top: 20px;
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before {
  color: var(--gold);
  content: "Q";
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  margin-right: 18px;
}

details p {
  margin: 22px 0 0 36px;
  max-width: 850px;
}

footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: #586071;
  display: flex;
  font-size: 12px;
  justify-content: space-between;
  letter-spacing: 2px;
  padding-bottom: 38px;
  padding-top: 38px;
  text-transform: uppercase;
}

footer a {
  color: var(--gold);
  font-weight: 700;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    gap: 24px;
    padding: 24px 22px;
  }

  nav {
    display: none;
  }

  .hero,
  .section,
  footer {
    padding-left: 22px;
    padding-right: 22px;
  }

  .hero,
  .product-proof,
  .buy-section {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 38px;
    min-height: auto;
    padding-bottom: 70px;
    padding-top: 40px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-visual {
    padding: 34px 18px;
  }

  .section {
    padding-bottom: 76px;
    padding-top: 76px;
  }

  .three-up,
  .habit-grid,
  .buy-copy ul {
    grid-template-columns: 1fr;
  }

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

  .ecosystem-row i {
    height: 28px;
    margin: 0 auto;
    width: 1px;
  }

  .checkout-card {
    justify-self: stretch;
  }

  footer {
    gap: 18px;
  }
}