/* Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  color: #1f2937;
  background: #f6f7f8;
}
a { color: #0a5c7c; text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

/* Header */
header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky; top: 0; z-index: 50;
}
.navbar { display: flex; align-items: center; justify-content: space-between; padding: 0.8rem 0; gap: 1rem; }
.nav-logo { font-weight: 800; letter-spacing: 0.03em; }
.nav-logo span { display: block; font-weight: 400; font-size: 0.85rem; color: #6b7280; margin-top: 0.1rem; }
.nav-links { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.95rem; }
.nav-links a { padding: 0.2rem 0; }
.nav-links a.active { font-weight: 700; border-bottom: 2px solid #0a5c7c; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0a5c7c, #114b5f);
  color: #fff;
  padding: 3.25rem 0 2.75rem;
}
.hero-inner { display: flex; flex-direction: column; gap: 1.1rem; }
.hero h1 { font-size: 2.05rem; max-width: 780px; }
.hero p { max-width: 820px; font-size: 1.03rem; color: rgba(255,255,255,0.92); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.25rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.62rem 1.35rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
}
.btn-primary { background: #f6c453; color: #111827; }
.btn-outline { border: 1px solid #fff; color: #fff; background: transparent; }

/* Sections */
.section { padding: 2.75rem 0; background: #f6f7f8; }
.section.alt { background: #ffffff; }
.section h1 { font-size: 1.9rem; margin-bottom: 0.75rem; }
.section h2 { font-size: 1.55rem; margin-bottom: 0.85rem; }
.section h3 { font-size: 1.15rem; margin: 1.1rem 0 0.45rem; }
.section p { margin-bottom: 0.85rem; }

/* Cards / grids */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0.9rem;
  padding: 1.15rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.card h3 { margin-top: 0; }

/* Lists */
ul, ol { margin-left: 1.15rem; margin-bottom: 0.85rem; }
li { margin-bottom: 0.3rem; }

/* Badges */
.badge {
  display: inline-flex;
  gap: 0.55rem;
  align-items: center;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  width: fit-content;
}

/* Article */
.article-list article { padding-bottom: 2.25rem; margin-bottom: 2.25rem; border-bottom: 1px solid #e5e7eb; }
.small-note { font-size: 0.92rem; color: #6b7280; }

/* Footer */
footer { background: #111827; color: #e5e7eb; padding: 1.7rem 0; margin-top: 2rem; font-size: 0.92rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; color: #cbd5e1; }

/* Responsive */
@media (max-width: 920px) {
  .grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-2 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.75rem; }
}
@media (max-width: 680px) {
  .nav-links { display: none; } /* simple mobile header */
  .hero { padding: 2.5rem 0 2.15rem; }
  .grid { grid-template-columns: 1fr; }
}