:root {
  --color-primary: #1a3a5c;
  --color-primary-dark: #12283f;
  --color-accent: #2f6690;
  --color-text: #2b2b2b;
  --color-muted: #5a6672;
  --color-bg-alt: #f4f6f8;
  --color-border: #e1e5e9;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--color-primary);
  margin-top: 0;
}

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

a:hover {
  text-decoration: underline;
}

/* Header */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
}

.brand-sub {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.95rem;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #ffffff;
  padding: 64px 0;
  text-align: center;
}

.hero h1 {
  color: #ffffff;
  font-size: 2rem;
  margin-bottom: 12px;
}

.hero p {
  color: #dce6ef;
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

/* Sections */
.section {
  padding: 56px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: 1.6rem;
  margin-bottom: 20px;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
  padding-bottom: 6px;
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.service-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* Contact */
.contact-grid {
  margin-top: 16px;
}

.contact-info p {
  margin: 6px 0;
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: #cfd8e3;
  padding: 40px 0 24px;
  margin-top: 24px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-company p {
  margin: 4px 0;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #a9c1d9;
  font-size: 0.9rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: #8ea0b4;
  margin: 0;
}

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

  .main-nav ul {
    gap: 16px;
  }

  .hero {
    padding: 48px 0;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .section {
    padding: 40px 0;
  }
}