:root {
  --primary: #0b3d91;
  --secondary: #0ea5e9;
  --dark: #07111f;
  --text: #1f2937;
  --muted: #64748b;
  --light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: Arial, sans-serif; color: var(--text); background: var(--white); line-height: 1.6; }
a { text-decoration: none; color: inherit; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.95); border-bottom: 1px solid var(--border); }
.navbar { max-width: 1200px; margin: auto; padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 24px; font-weight: 800; color: var(--primary); }
.logo span { color: var(--secondary); }
.nav-links { list-style: none; display: flex; gap: 28px; font-weight: 600; }
.nav-links a:hover { color: var(--secondary); }
.menu-toggle { display: none; background: none; border: none; font-size: 28px; cursor: pointer; }

.hero { min-height: 88vh; display: flex; align-items: center; background: linear-gradient(135deg, #07111f 0%, #0b3d91 60%, #0ea5e9 100%); color: var(--white); padding: 90px 24px; }
.hero-content { max-width: 1100px; margin: auto; }
.eyebrow { text-transform: uppercase; letter-spacing: 2px; font-size: 13px; font-weight: 700; color: var(--secondary); margin-bottom: 12px; }
.hero h1 { max-width: 950px; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; margin-bottom: 24px; }
.hero-text { max-width: 760px; font-size: 20px; color: #dbeafe; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 22px; border-radius: 10px; font-weight: 700; cursor: pointer; border: none; }
.btn.primary { background: var(--secondary); color: var(--white); }
.btn.secondary { border: 1px solid rgba(255,255,255,0.5); color: var(--white); }

.section { max-width: 1200px; margin: auto; padding: 80px 24px; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.15; color: var(--dark); }
.intro p { max-width: 900px; font-size: 19px; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { border: 1px solid var(--border); border-radius: 18px; padding: 26px; background: var(--white); box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(15, 23, 42, 0.1); }
.card h3 { color: var(--primary); margin-bottom: 12px; font-size: 21px; }
.card p { color: var(--muted); }
.highlight-card { border: 2px solid var(--secondary); background: #f0f9ff; }

.dark-section { max-width: none; background: var(--dark); color: var(--white); }
.dark-section .section-heading, .dark-section .steps { max-width: 1200px; margin-left: auto; margin-right: auto; }
.dark-section .section-heading h2 { color: var(--white); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.steps div { background: rgba(255,255,255,0.06); padding: 24px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.1); }
.steps span { color: var(--secondary); font-weight: 800; font-size: 28px; }
.steps h3 { margin: 12px 0; }
.steps p { color: #cbd5e1; }

.engagement-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.engagement-grid div { background: var(--light); border-radius: 18px; padding: 28px; border: 1px solid var(--border); }
.engagement-grid h3 { color: var(--primary); margin-bottom: 10px; }

.cta { text-align: center; background: linear-gradient(135deg, #0b3d91, #0ea5e9); color: var(--white); padding: 70px 24px; }
.cta h2 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 12px; }
.cta p { margin-bottom: 24px; color: #e0f2fe; }

.contact-form { display: grid; gap: 16px; max-width: 700px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 15px; border-radius: 10px; border: 1px solid var(--border); font: inherit; }
.contact-form textarea { resize: vertical; }
.contact-form .btn { width: fit-content; }

footer { text-align: center; padding: 28px; background: var(--dark); color: #cbd5e1; }

@media (max-width: 900px) {
  .cards, .steps, .engagement-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .menu-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 20px 24px; border-bottom: 1px solid var(--border); }
  .nav-links.active { display: flex; }
  .cards, .steps, .engagement-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
}