:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f8fb;
  color: #172536;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 90% 10%, rgba(32, 164, 200, 0.16), transparent 28rem),
    linear-gradient(180deg, #eef5fa 0, #f8fafc 28rem, #f5f8fb 100%);
}

.shell {
  width: min(70rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 0 2rem;
}

.hero {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border-radius: 1.5rem;
  color: #fff;
  background: linear-gradient(135deg, #123a63, #1769aa);
  box-shadow: 0 1.5rem 4rem rgba(18, 58, 99, 0.18);
}

.mark {
  display: grid;
  place-items: center;
  width: 4.75rem;
  height: 4.75rem;
  flex: 0 0 auto;
  border-radius: 1.1rem;
  background: #fff;
  color: #123a63;
  font-size: 2rem;
  font-weight: 800;
}

.eyebrow,
.label {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  color: #bfe6f3;
}

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

h1 {
  margin-bottom: 0.65rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
}

.intro {
  max-width: 44rem;
  margin-bottom: 0;
  color: #e1edf6;
  font-size: clamp(1rem, 2.1vw, 1.22rem);
  line-height: 1.6;
}

.resource {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid #d6e0e8;
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.92);
}

.label {
  color: #1769aa;
}

h2 {
  margin-bottom: 0.65rem;
  color: #123a63;
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.resource p {
  max-width: 48rem;
  line-height: 1.65;
}

.meta {
  margin-bottom: 0;
  color: #5c6b7a;
  font-size: 0.9rem;
}

.download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.85rem 1.25rem;
  border-radius: 0.8rem;
  color: #fff;
  background: #1769aa;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.download:hover,
.download:focus-visible {
  background: #0f548e;
}

.download:focus-visible {
  outline: 0.2rem solid #20a4c8;
  outline-offset: 0.2rem;
}

.notice {
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  border-left: 0.28rem solid #18794e;
  border-radius: 0.7rem;
  background: #eaf7f1;
}

.notice p {
  margin: 0.4rem 0 0;
  line-height: 1.55;
}

footer {
  padding: 2rem 0 0;
  color: #5c6b7a;
  font-size: 0.86rem;
}

@media (max-width: 44rem) {
  .hero {
    align-items: flex-start;
  }

  .mark {
    width: 3.5rem;
    height: 3.5rem;
  }

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

  .download {
    width: 100%;
    white-space: normal;
  }
}

@media (max-width: 31rem) {
  .hero {
    display: block;
  }

  .mark {
    margin-bottom: 1.25rem;
  }
}