:root {
  --bg: #f7f8fb;
  --text: #172033;
  --muted: #5e6878;
  --line: #dfe4ee;
  --primary: #1f6feb;
  --primary-dark: #1557bf;
  --surface: #ffffff;
  --surface-strong: #eef4ff;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

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

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

.site-header,
.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0;
  text-decoration: none;
}

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

nav a,
.site-footer a {
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

nav a:hover,
nav a[aria-current="page"],
.site-footer a:hover {
  color: var(--primary);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 44px;
  width: min(1120px, calc(100% - 32px));
  margin: 48px auto 72px;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(44px, 7vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 660px;
  color: var(--muted);
  font-size: 19px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 750;
  text-decoration: none;
}

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

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
}

.product-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
}

.panel-header {
  display: flex;
  gap: 8px;
  padding-bottom: 16px;
}

.panel-header span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #c8d1df;
}

.merge-card {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #ffffff;
}

.merge-card.active {
  background: var(--surface-strong);
  border-color: #b8cdf8;
}

.merge-card span {
  color: var(--muted);
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 56px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.section h2,
.page h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article {
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 22px;
}

.feature-grid h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.2;
}

.feature-grid p,
.split p,
.page p,
.page li {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1fr);
  gap: 32px;
  border-top: 1px solid var(--line);
  padding-top: 38px;
}

.page {
  width: min(840px, calc(100% - 32px));
  margin: 42px auto 72px;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.page section {
  margin-top: 30px;
}

.page h2 {
  margin: 0 0 8px;
  font-size: 23px;
  line-height: 1.25;
}

.updated {
  margin-top: 0;
}

.policy-notice {
  overflow-wrap: anywhere;
  margin: 0 0 28px;
  border: 1px solid #b8cdf8;
  border-radius: 8px;
  background: var(--surface-strong);
  padding: 14px 16px;
}

.contact-page {
  min-height: 360px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 860px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    margin-top: 24px;
  }

  .hero h1 {
    font-size: 42px;
  }

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

  .feature-grid article {
    min-height: auto;
  }

  .page {
    padding: 24px;
  }
}