/* Base responsive styles for modern-site */
:root {
  --primary: #0a3d62;
  --accent: #1e90ff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --bg: #ffffff;
  --surface: #f8fafc;
  --maxw: 1040px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

header {
  background: var(--bg);
  border-bottom: 1px solid #e5e7eb;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
}
.brand img { height: 54px; width: auto; }
.brand h1 { margin: 0; font-size: 1.125rem; color: var(--primary); }
.brand p { margin: 0; color: var(--muted); font-size: .9rem; }

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  list-style: none;
  margin: 0; padding: 10px 0 14px;
}
nav a {
  display: inline-block;
  padding: 8px 12px;
  color: var(--primary);
  text-decoration: none;
  border-radius: 8px;
}
nav a:hover, nav a[aria-current="page"] {
  background: #eaf4ff;
}

main { padding: 28px 0; }
.hero {
  background: linear-gradient(180deg, #eaf4ff, transparent);
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 24px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}
.col-8 { grid-column: span 8; }
.col-4 { grid-column: span 4; }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .col-8, .col-4 { grid-column: span 1; }
}

article h2 { margin-top: 0; color: var(--primary); }
aside {
  background: var(--bg);
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
}
aside h3 { margin-top: 0; font-size: 1rem; color: var(--primary); }
aside ul { margin: 0; padding-left: 18px; }

footer {
  border-top: 1px solid #e5e7eb;
  color: var(--muted);
  font-size: .9rem;
  padding: 18px 0;
}