:root {
  color-scheme: dark;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: #06142b;
  color: #eef5ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #06142b;
}

a {
  color: inherit;
}

.site-header,
main,
.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
  border-bottom: 1px solid rgba(145, 183, 231, 0.18);
}

.brand {
  color: #eef5ff;
  font-size: 17px;
  font-weight: 800;
  text-decoration: none;
}
.brand em {
  color: #69adff;
  font-style: normal;
}
.button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid #5aa5ff;
  border-radius: 6px;
  background: #3186f6;
  color: #f7fbff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.eyebrow {
  color: #69adff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 56px;
  align-items: center;
  padding: 84px 0 64px;
}
h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}
h1 {
  max-width: 660px;
  margin: 12px 0 20px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.96;
}
h2 {
  margin: 0 0 14px;
  font-size: 31px;
  line-height: 1.06;
}
h3 {
  margin: 0 0 9px;
  font-size: 19px;
}
p,
li {
  color: #b7c9e3;
  font-size: 16px;
  line-height: 1.7;
}
.lead {
  max-width: 630px;
  font-size: 19px;
}
.hero img {
  height: auto;
  width: 100%;
  border: 1px solid rgba(145, 183, 231, 0.35);
  border-radius: 6px;
  box-shadow: 12px 12px 0 #15477f;
}
.section {
  padding: 58px 0;
  border-top: 1px solid rgba(145, 183, 231, 0.18);
}
.steps,
.template-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}
.steps article,
.template-grid article {
  padding: 24px;
  border: 1px solid rgba(145, 183, 231, 0.22);
  border-radius: 6px;
  background: rgba(12, 38, 73, 0.55);
}
.step-number {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  margin-bottom: 20px;
  border: 1px solid #69adff;
  border-radius: 50%;
  color: #69adff;
  font-size: 12px;
  font-weight: 800;
}
.callout {
  margin-top: 28px;
  padding: 25px;
  border-left: 3px solid #69adff;
  background: rgba(78, 156, 255, 0.08);
}
.callout p {
  margin-bottom: 0;
}
details {
  padding: 19px 0;
  border-top: 1px solid rgba(145, 183, 231, 0.18);
}
details:last-child {
  border-bottom: 1px solid rgba(145, 183, 231, 0.18);
}
summary {
  cursor: pointer;
  color: #eef5ff;
  font-size: 17px;
  font-weight: 700;
}
details p {
  max-width: 800px;
  margin: 12px 0 0;
}
.site-footer {
  padding: 32px 0 48px;
  color: #9bb0cc;
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 30px, 620px);
  }
  .hero,
  .steps,
  .template-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    gap: 38px;
    padding: 58px 0 48px;
  }
  h1 {
    font-size: 47px;
  }
  .lead {
    font-size: 17px;
  }
}