:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #152033;
  --muted: #5f6b7a;
  --line: #d9dee7;
  --accent: #0f5e9c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.home-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px max(16px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.home-brand {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  text-decoration: none;
}

.home-brand-logo {
  display: block;
  width: auto;
  height: 34px;
  max-width: min(180px, 42vw);
}

.home-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 14px;
}

.home-nav a {
  text-decoration: none;
}

.home-nav a:hover,
.home-nav a:focus {
  color: var(--accent);
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

.listing-header {
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.listing-header h1,
.rich-article h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.05;
  letter-spacing: 0;
}

.listing-header p,
.lead {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.article-card {
  display: block;
  min-height: 260px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  text-decoration: none;
}

.article-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 14px;
}

.article-card span,
.back-link {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.article-card h2 {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.25;
}

.article-card h3 {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.25;
}

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

.rich-article {
  max-width: 860px;
}

.page-cover {
  display: block;
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 28px;
}

.rich-content {
  margin-top: 32px;
  font-size: 18px;
}

.home-modules {
  display: grid;
  gap: 56px;
  margin-top: 56px;
}

.home-module {
  scroll-margin-top: 88px;
}

.rich-content img {
  max-width: 100%;
  height: auto;
}

.rich-content table {
  width: 100%;
  border-collapse: collapse;
}

.rich-content th,
.rich-content td {
  padding: 10px;
  border: 1px solid var(--line);
}