:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5b6673;
  --line: #d9e0e7;
  --panel: #f6f8fb;
  --brand: #0b5c6b;
  --brand-dark: #083c46;
  --accent: #b45309;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #ffffff;
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--brand-dark);
}

nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

nav a {
  text-decoration: none;
  color: var(--muted);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.hero {
  padding: 42px 0 36px;
  border-bottom: 1px solid var(--line);
}

.hero.compact {
  padding-bottom: 20px;
}

.hero h1,
.article-page h1 {
  margin: 8px 0 14px;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  padding-top: 28px;
}

.article-card {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  background: #ffffff;
}

.article-card:hover {
  border-color: var(--brand);
  background: var(--panel);
}

.article-card span {
  color: var(--accent);
  font-weight: 700;
}

.article-page {
  width: min(860px, 100%);
  margin: 0 auto;
}

.article-page h2 {
  margin-top: 42px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 26px;
  line-height: 1.2;
}

.article-page h3 {
  margin-top: 28px;
  font-size: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 15px;
}

th, td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--brand-dark);
  color: #ffffff;
}

tr:nth-child(even) td {
  background: var(--panel);
}

.table-wrap {
  overflow-x: auto;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero h1,
  .article-page h1 {
    font-size: 34px;
  }
}