:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --ink: #171923;
  --muted: #5b6475;
  --line: #dfe3ec;
  --panel: #ffffff;
  --accent: #3658d6;
  --accent-dark: #233a9a;
  --signal: #16a085;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.shell {
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
}

.brand {
  font-weight: 800;
  letter-spacing: 0;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(56px, 8vw, 104px) clamp(20px, 5vw, 72px) 40px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--signal);
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 22px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--accent-dark);
}

.signal-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: clamp(22px, 4vw, 34px);
}

.signal-panel h2,
.section h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

.signal-list,
.offer-grid,
.detail-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
}

.signal-list li,
.offer,
.detail {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
}

.label {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.section {
  padding: 42px clamp(20px, 5vw, 72px);
}

.offer-grid,
.detail-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.offer h3,
.detail h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.offer p,
.detail p {
  margin: 0;
  color: var(--muted);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 820px) {
  .topbar,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .offer-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }
}