:root {
  color-scheme: light;
  --navy: #0a3d76;
  --teal: #087f97;
  --ink: #18354b;
  --muted: #536979;
  --line: #d8e7ed;
  --gradient: linear-gradient(135deg, #087f97, #0a3d76);
}
* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  min-width: 280px;
  background: linear-gradient(160deg, #ffffff 30%, #eef8fb);
  color: var(--ink);
  font: 17px/1.65 "Segoe UI", system-ui, sans-serif;
}
header,
main,
footer {
  width: min(1080px, calc(100% - 64px));
  margin-inline: auto;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 28px;
}
a {
  color: var(--navy);
  text-underline-offset: 4px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 700;
  text-decoration: none;
}
.support-link {
  font-size: 15px;
}
.hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  align-items: center;
  gap: 28px;
  padding-block: 58px 72px;
}
h1,
h2 {
  color: var(--navy);
  letter-spacing: -0.035em;
  line-height: 1.12;
}
h1 {
  margin: 0 0 26px;
  font-size: clamp(40px, 4.8vw, 62px);
  font-weight: 700;
}
h1 span {
  color: var(--teal);
}
.intro {
  max-width: 46ch;
  margin: 0 0 14px;
  font-size: 20px;
}
.protocol {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 16px;
}
.hero-mark {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  background: radial-gradient(circle, #d8f2f6 0%, #eef8fb 48%, transparent 71%);
}
.trial-note {
  max-width: 48ch;
  color: var(--muted);
  font-size: 13px;
  margin: 14px 0 0;
}
.hero-mark img {
  width: min(256px, 80%);
  height: auto;
  filter: drop-shadow(0 18px 16px #0a3d761a);
}
.button,
button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 11px 24px;
  border: 0;
  border-radius: 12px;
  background: var(--gradient);
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
}
.button:hover,
button:enabled:hover {
  background: var(--navy);
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 5px;
}
button:disabled {
  background: #e2eef3;
  color: #536979;
  cursor: default;
}
.offer {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
  gap: 40px;
  padding: 34px 40px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 12px 40px #0a3d7605;
}
h2 {
  margin: 0 0 14px;
  font-size: 28px;
}
.offer p {
  margin: 0;
  color: var(--muted);
}
.purchase {
  max-width: 300px;
  width: 100%;
  justify-self: end;
}
.price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}
.price strong {
  color: var(--navy);
  font-size: 32px;
  letter-spacing: -0.035em;
  line-height: 1.2;
}
.price span {
  color: var(--muted);
  font-size: 15px;
}
.purchase button {
  width: 100%;
}
.purchase #feedback {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.5;
}
footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding-block: 30px;
  color: var(--muted);
  font-size: 13px;
}
.textpage {
  max-width: 720px;
  padding-block: 40px 60px;
}
.textpage h1 {
  margin-top: 38px;
  font-size: clamp(34px, 5vw, 46px);
}
.textpage h2 {
  margin-top: 32px;
  font-size: 24px;
}
address {
  font-style: normal;
}
@media (max-width: 700px) {
  header,
  main,
  footer {
    width: calc(100% - 40px);
  }
  header {
    padding-block: 20px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-block: 16px 36px;
    text-align: center;
  }
  .hero-mark {
    grid-row: 1;
    width: 170px;
    justify-self: center;
  }
  .hero-mark img {
    width: 132px;
  }
  h1 {
    font-size: clamp(32px, 7.8vw, 48px);
    margin-bottom: 20px;
  }
  .intro {
    margin-inline: auto;
    font-size: 18px;
  }
  .protocol {
    font-size: 15px;
    margin-bottom: 24px;
  }
  .offer {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 26px;
  }
  .offer h2 {
    font-size: 25px;
  }
  .purchase {
    max-width: none;
  }
  footer {
    font-size: 12px;
  }
}