:root {
  --navy: #0f172a;
  --navy-light: #1e293b;
  --blue: #2563eb;
  --bg: #f8fafc;
  --border: #e2e8f0;
  --text-muted: #64748b;
}

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

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.logo { font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
.logo span { color: var(--blue); }

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
}

.nav-links a:hover { color: var(--blue); }

.nav-cta {
  background: var(--navy);
  color: #fff;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.nav-cta:hover { background: var(--navy-light); }

.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; }

/* Hero */
.hero {
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
  padding: 90px 24px 70px;
  text-align: center;
}

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  max-width: 720px;
  margin: 0 auto 18px;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 18px;
  color: #cbd5e1;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn-primary {
  background: var(--blue);
  color: #fff;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
}

.btn-primary:hover { background: #1d4ed8; }

.btn-secondary {
  background: transparent;
  color: #fff;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid #475569;
  cursor: pointer;
}

.btn-secondary:hover { border-color: #94a3b8; }

/* Stats */
.stats {
  display: flex;
  justify-content: center;
  gap: 64px;
  padding: 40px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  text-align: center;
}

.stat-value { font-size: 32px; font-weight: 800; color: var(--blue); }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* Sections */
section { padding: 80px 0; }
section.alt { background: var(--bg); }

.section-header { text-align: center; max-width: 620px; margin: 0 auto 48px; }
.section-header h2 { font-size: 30px; font-weight: 800; letter-spacing: -0.01em; }
.section-header p { color: var(--text-muted); margin-top: 12px; font-size: 16px; }

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  background: #fff;
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #eff6ff;
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.service-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--text-muted); }

/* Why choose us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.why-item { display: flex; gap: 16px; }

.why-badge {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.why-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.why-item p { font-size: 14px; color: var(--text-muted); }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 20px;
  margin-bottom: 12px;
  background: #fff;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  padding: 16px 0;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  float: right;
  font-size: 20px;
  color: var(--blue);
}

.faq-item[open] summary::after { content: "\2212"; }

.faq-item p { padding-bottom: 16px; color: var(--text-muted); font-size: 14px; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  background: #fff;
}

.contact-row { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.contact-row:last-child { margin-bottom: 0; }

.contact-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: #eff6ff;
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-row a:hover { color: var(--blue); }

/* Footer */
footer {
  background: var(--navy);
  color: #94a3b8;
  padding: 32px 24px;
  text-align: center;
  font-size: 14px;
}

footer strong { color: #fff; }

@media (max-width: 860px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 30px; }
  .services-grid { grid-template-columns: 1fr; }
  .stats { gap: 32px; }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 62px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 24px;
    z-index: 100;
  }

  .nav-links.mobile-open li { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-links.mobile-open li:last-child { border-bottom: none; }
}