:root {
  color-scheme: light;
  --bg: #f7f9fb;
  --surface: #ffffff;
  --ink: #17202a;
  --muted: #536273;
  --line: #d9e1ea;
  --primary: #1267b1;
  --primary-dark: #0b4d86;
  --accent: #0f8b6f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--primary);
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.nav,
.section {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.brand {
  font-weight: 760;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.hero {
  padding: 72px 0 40px;
}

.hero-grid,
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 28px;
  align-items: start;
}

h1,
h2,
h3 {
  line-height: 1.18;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.7rem;
}

p {
  margin: 0 0 14px;
}

.lead {
  color: var(--muted);
  font-size: 1.2rem;
  max-width: 680px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  border-radius: 8px;
  display: inline-block;
  font-weight: 700;
  padding: 12px 16px;
  text-decoration: none;
}

.button.primary {
  background: var(--primary);
  color: white;
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--primary-dark);
}

.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.panel {
  padding: 22px;
}

.score {
  align-items: center;
  background: var(--primary);
  border-radius: 8px;
  color: white;
  display: flex;
  min-height: 220px;
  justify-content: center;
  text-align: center;
}

.score strong {
  display: block;
  font-size: 4.2rem;
  line-height: 1;
}

.section {
  padding: 34px 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  padding: 18px;
}

.muted {
  color: var(--muted);
}

.list {
  padding-left: 20px;
}

.notice {
  border-left: 4px solid var(--accent);
  padding-left: 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0;
}

@media (max-width: 760px) {
  .hero {
    padding-top: 44px;
  }

  .hero-grid,
  .content-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }
}