* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #2b2b2b;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: #1a3c5e;
  color: #fff;
  padding: 8px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  border-bottom: 1px solid #e5e5e5;
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #1a3c5e;
  font-weight: 700;
  font-size: 1.2rem;
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
}
.main-nav a {
  text-decoration: none;
  color: #2b2b2b;
  font-weight: 500;
}
.main-nav a:hover { color: #1a3c5e; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #1a3c5e 0%, #234b73 100%);
  color: #fff;
  padding: 100px 0;
  text-align: center;
}
.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 16px;
}
.tagline {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 32px;
  opacity: 0.9;
}
.btn {
  display: inline-block;
  background: #fff;
  color: #1a3c5e;
  padding: 12px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
}
.btn:hover { background: #e5e5e5; }

/* Services */
.services { padding: 80px 0; text-align: center; }
.services h2, .about h2, .contact h2 {
  font-size: 2rem;
  margin-bottom: 40px;
  color: #1a3c5e;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  text-align: left;
}
.service-card {
  padding: 24px;
  border: 1px solid #eee;
  border-radius: 8px;
}
.service-card .icon { margin-bottom: 14px; }
.service-card h3 { margin-bottom: 10px; color: #1a3c5e; }

/* About */
.about {
  background: #f7f9fb;
  padding: 80px 0;
  text-align: center;
}
.about p {
  max-width: 800px;
  margin: 0 auto 20px;
}

/* Contact */
.contact { padding: 80px 0; text-align: center; }
.contact-details {
  list-style: none;
  display: inline-block;
  text-align: left;
}
.contact-details li { margin-bottom: 10px; }

/* Footer */
.site-footer {
  background: #1a3c5e;
  color: #fff;
  text-align: center;
  padding: 24px 0;
  font-size: 0.9rem;
}