:root {
  --navy: #0f1b2d;
  --navy-light: #16273f;
  --slate: #3c4d63;
  --accent: #3d8bfd;
  --accent-dark: #2569d1;
  --ivory: #f5f7fa;
  --gray: #5a6472;
  --border: #e2e6ec;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--ivory);
  line-height: 1.6;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: #cdd6e2;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav a:hover { color: #ffffff; }

.nav-cta {
  background: var(--accent);
  color: #ffffff !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 600;
}

.nav-cta:hover { background: var(--accent-dark); }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 60%, var(--slate) 100%);
  color: #ffffff;
  padding: 120px 0 100px;
}

.hero-inner {
  max-width: 760px;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: 1.15rem;
  color: #c3ccd8;
  margin-bottom: 36px;
  max-width: 620px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--navy);
  border: 2px solid var(--navy);
}

.btn-secondary:hover {
  background: var(--navy);
  color: #ffffff;
  transform: translateY(-1px);
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* Sections */
.section-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 40px;
  text-align: center;
  letter-spacing: -0.01em;
}

.services {
  padding: 90px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px 28px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--navy);
}

.service-card p {
  color: var(--gray);
  font-size: 0.98rem;
}

/* About */
.about {
  background: #ffffff;
  padding: 90px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.about p {
  color: var(--gray);
  font-size: 1.05rem;
}

/* Contact */
.contact {
  padding: 90px 0 100px;
  text-align: center;
}

.contact-inner {
  max-width: 560px;
  margin: 0 auto;
}

.contact p {
  color: var(--gray);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: #9aa6b5;
  padding: 28px 0;
  font-size: 0.85rem;
}

.footer-inner {
  text-align: center;
}

/* Responsive */
@media (max-width: 860px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.1rem;
  }
  .nav {
    gap: 16px;
  }
  .logo {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 90px 0 70px;
  }
  .nav a:not(.nav-cta) {
    display: none;
  }
}