:root {
  --navy: #0c2340;
  --blue: #2a5bff;
  --background: #f4f7fa;
  --surface: #ffffff;
  --text: #0c2340;
  --muted: #5c6e80;
  --line: #e4eaf1;
  --max: 920px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

img {
  display: block;
  max-width: 100%;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

header {
  background: var(--navy);
  color: white;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand strong {
  display: block;
  letter-spacing: 0.14em;
  font-size: 13px;
}

.brand span {
  display: block;
  color: #c9d6e8;
  font-size: 14px;
}

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

nav a {
  color: white;
  text-decoration: none;
  font-size: 15px;
}

.hero {
  padding: 28px 0 64px;
}

.hero h1 {
  max-width: 14ch;
  margin: 0 0 16px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.hero p {
  max-width: 42rem;
  margin: 0;
  color: #d7e2ef;
  font-size: 18px;
}

main {
  padding: 48px 0 24px;
}

h1,
h2,
h3 {
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 {
  margin: 0 0 12px;
  font-size: 40px;
}

h2 {
  margin: 36px 0 10px;
  font-size: 24px;
}

.lede,
.note,
section p,
li {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.card,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.card {
  padding: 18px 18px 16px;
}

.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--navy);
}

.card p,
.panel p {
  margin: 0;
}

.panel {
  padding: 22px;
  margin-top: 18px;
}

.limits {
  margin-top: 28px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
}

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

.footer-links a {
  color: var(--navy);
  font-weight: 600;
  text-decoration: none;
}

.fine {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

ul {
  padding-left: 18px;
}

@media (max-width: 700px) {
  .top,
  nav,
  .grid {
    display: block;
  }

  nav a {
    display: inline-block;
    margin: 8px 16px 0 0;
  }

  .hero {
    padding-bottom: 40px;
  }
}