:root {
  color-scheme: light;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #142339;
  background: #f2f4f8;
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.55; }
a { color: inherit; }
.shell { width: min(1080px, calc(100% - 40px)); margin: auto; }
.site-header, footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 0;
}
.site-header { border-bottom: 1px solid #dfe4eb; margin-bottom: 22px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #162e4c;
  font-size: 1.2rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark { font-size: 1.55em; line-height: 1; }
nav { display: flex; flex-wrap: wrap; gap: 20px; font-size: .9rem; font-weight: 650; }
nav a { text-decoration-thickness: 1px; text-underline-offset: .25em; }
.hero {
  border-radius: 13px;
  background: #132741;
  color: #fff;
  padding: clamp(27px, 5vw, 52px);
  margin-bottom: 18px;
}
.hero p { margin: 0 0 4px; color: #d6e4f5; font-weight: 650; }
h1, h2 { line-height: 1.15; margin: 0; }
h1 { font-size: clamp(2.5rem, 8vw, 4.1rem); letter-spacing: -.06em; }
h2 { font-size: clamp(1.3rem, 4vw, 1.7rem); letter-spacing: -.025em; }
.card {
  margin: 0 0 14px;
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid #dfe4eb;
  border-radius: 12px;
  background: #fff;
}
.card p { margin: .6em 0 0; color: #4b5d73; }
.card .kicker { margin: 0 0 7px; font-size: .86rem; font-weight: 650; }
.status-dot { display: inline-block; width: .48em; height: .48em; border-radius: 50%; background: #426990; margin: 0 .3em .12em 0; }
.card .note { color: #22476b; font-weight: 650; }
.course-preview {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-top: 16px;
  padding: 16px;
  border-radius: 9px;
  background: #f2f5fa;
}
.course-preview h3 { margin: 0; font-size: 1.12rem; }
.price { white-space: nowrap; color: #173d62; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 18px 0 0; padding-left: 1.2em; }
.steps span { display: block; color: #4b5d73; margin-top: 4px; }
footer { border-top: 1px solid #dfe4eb; margin-top: 26px; color: #4b5d73; font-size: .84rem; }
@media (max-width: 620px) {
  .shell { width: calc(100% - 28px); }
  .steps { grid-template-columns: 1fr; gap: 13px; }
  nav { gap: 12px; }
  footer { flex-wrap: wrap; }
}