:root {
  --blue: #123f8c;
  --blue-deep: #0a2559;
  --red: #c93445;
  --ink: #172033;
  --muted: #5d6b80;
  --line: #dce5f1;
  --paper: #fbfcff;
  --white: #ffffff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 252, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand-row,
.site-nav,
.page,
.site-footer {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
}

.brand-row {
  padding: 18px 0 8px;
}

.brand {
  color: var(--blue);
  font-size: 1.08rem;
  font-weight: 900;
}

.site-nav {
  display: flex;
  gap: 22px;
  padding: 0 0 14px;
  overflow-x: auto;
  font-size: 0.94rem;
}

.site-nav a {
  min-width: max-content;
  color: var(--muted);
}

.content-section {
  padding: clamp(48px, 8vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.label {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  color: var(--blue);
  font-size: clamp(2.25rem, 6vw, 4.35rem);
}

h2 {
  margin-top: 34px;
  color: var(--red);
  font-size: clamp(1.35rem, 3vw, 2rem);
}

h3 {
  margin-top: 18px;
  color: var(--blue-deep);
  font-size: 1.18rem;
}

p,
li {
  color: var(--muted);
  font-size: 1.05rem;
}

p {
  margin: 18px 0 0;
}

ul {
  margin: 16px 0 0;
  padding-left: 22px;
}

li {
  margin: 7px 0;
}

figure {
  margin: 28px 0 0;
}

img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.site-footer {
  padding: 30px 0 44px;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 640px) {
  .site-nav {
    gap: 16px;
  }

  .content-section {
    padding: 42px 0;
  }

  h1 {
    font-size: 2.35rem;
  }
}