:root {
  --navy: #10233f;
  --muted: #526176;
  --blue: #1769e0;
  --line: #dce3eb;
  --soft-blue: #f3f7fd;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--navy);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 3px solid rgba(23, 105, 224, 0.28);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  width: min(800px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--navy);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.site-header p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.hero {
  padding-top: clamp(64px, 10vw, 104px);
  padding-bottom: clamp(64px, 9vw, 88px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
p {
  max-width: 70ch;
}

h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.35rem);
  font-weight: 720;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.intro {
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.7;
}

.notice {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--blue);
  background: var(--soft-blue);
  font-size: 0.94rem;
}

.notice p {
  margin: 0;
}

.notice p + p {
  margin-top: 5px;
  color: var(--muted);
}

.sections {
  border-top: 1px solid var(--line);
}

.sections section {
  padding: 48px 0;
  scroll-margin-top: 24px;
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 0 0 18px;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.sections p {
  margin: 0;
  color: var(--muted);
}

.sections p + p {
  margin-top: 10px;
}

ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

li::marker {
  color: var(--blue);
}

.site-footer {
  padding: 42px 0 48px;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: 8px 18px;
}

.site-footer nav a {
  font-size: 0.84rem;
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 32px, 800px);
  }

  .hero {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .sections section {
    padding: 40px 0;
  }

  .footer-layout {
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}