:root {
  color-scheme: light;
  --ink: #10264d;
  --muted: #53647e;
  --blue: #1764d7;
  --blue-soft: #eaf2ff;
  --line: #dbe4f1;
  --surface: #ffffff;
  --page: #f5f8fc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

.site-header {
  background: linear-gradient(135deg, #ffffff 0%, #edf4ff 100%);
  border-bottom: 1px solid var(--line);
}

.header-inner,
main,
footer {
  width: min(880px, calc(100% - 40px));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 56px 0 48px;
}

.brand-mark {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: 22px;
  box-shadow: 0 12px 32px rgb(16 38 77 / 12%);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 3.7rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.updated {
  margin: 12px 0 0;
  color: var(--muted);
}

main {
  padding: 38px 0 24px;
}

section {
  margin: 0 0 18px;
  padding: 30px 34px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgb(16 38 77 / 5%);
}

.summary {
  background: var(--blue-soft);
  border-color: #cfe0fb;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.3;
}

p {
  margin: 0;
}

p + p,
ul + p {
  margin-top: 14px;
}

ul {
  margin: 14px 0 0;
  padding-left: 1.35rem;
}

li + li {
  margin-top: 10px;
}

a {
  color: #0b55be;
  font-weight: 650;
  text-underline-offset: 3px;
}

a:focus-visible {
  outline: 3px solid #8bb8f4;
  outline-offset: 3px;
  border-radius: 3px;
}

footer {
  padding: 12px 0 44px;
  color: var(--muted);
  font-size: 0.92rem;
  text-align: center;
}

@media (max-width: 620px) {
  .header-inner {
    align-items: flex-start;
    gap: 18px;
    padding: 38px 0 34px;
  }

  .brand-mark {
    width: 70px;
    height: 70px;
    border-radius: 16px;
  }

  section {
    padding: 24px 22px;
    border-radius: 15px;
  }
}