:root {
  --navy: #0B1F33;
  --slate: #33475B;
  --teal: #2DD4BF;
  --amber: #F59E0B;
  --offwhite: #F8FAFC;
  --white: #FFFFFF;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background: var(--offwhite);
  color: var(--slate);
  line-height: 1.6;
}
h1, h2, h3, h4 { font-family: 'Hanken Grotesk', 'Inter', sans-serif; color: var(--navy); }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  background: var(--offwhite);
  border-bottom: 1px solid #e2e8f0;
  position: sticky; top: 0; z-index: 10;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.site-header img { height: 44px; }
.site-header nav { display: flex; gap: 28px; }
.site-header nav a { color: var(--navy); font-weight: 600; font-size: 15px; }
.site-header nav a:hover { color: var(--teal); text-decoration: none; }

/* Hero (dark) */
.hero {
  background: var(--navy);
  color: var(--offwhite);
  padding: 90px 0;
}
.hero .container { display: flex; align-items: center; gap: 60px; flex-wrap: wrap; }
.hero .hero-copy { flex: 1 1 480px; }
.hero h1 { color: var(--offwhite); font-size: 44px; line-height: 1.15; margin-bottom: 20px; }
.hero h1 .accent { color: var(--teal); }
.hero p { color: #cbd5e1; font-size: 19px; max-width: 560px; margin-bottom: 30px; }
.hero img { flex: 0 1 420px; max-width: 420px; width: 100%; }
.btn {
  display: inline-block; padding: 14px 30px; border-radius: 6px;
  font-weight: 700; font-size: 16px;
}
.btn-teal { background: var(--teal); color: var(--navy); }
.btn-teal:hover { background: #1fb8a5; text-decoration: none; }
.btn-outline { border: 2px solid var(--teal); color: var(--teal); margin-left: 14px; }
.btn-outline:hover { background: rgba(45,212,191,0.1); text-decoration: none; }

/* Sections */
.section { padding: 70px 0; }
.section.dark { background: var(--navy); color: var(--offwhite); }
.section.dark h2 { color: var(--offwhite); }
.section h2 { font-size: 34px; margin-bottom: 14px; }
.section .lede { font-size: 18px; color: #64748b; max-width: 720px; margin-bottom: 40px; }
.section.dark .lede { color: #94a3b8; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.card {
  background: var(--white); border: 1px solid #e2e8f0; border-radius: 10px;
  padding: 28px;
}
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { font-size: 15px; color: #64748b; }
.card .tag {
  display: inline-block; background: rgba(45,212,191,0.12); color: var(--teal);
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 4px; margin-bottom: 14px;
}
.card.dark-card { background: #12293f; border-color: #1e3a5c; }
.card.dark-card h3 { color: var(--offwhite); }
.card.dark-card p { color: #94a3b8; }

/* Pricing table */
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.price-card { background: var(--white); border: 1px solid #e2e8f0; border-radius: 10px; padding: 32px; }
.price-card.featured { border: 2px solid var(--teal); position: relative; }
.price-card .tier { font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal); }
.price-card .amount { font-size: 44px; font-weight: 800; color: var(--navy); margin: 10px 0; }
.price-card .amount span { font-size: 16px; font-weight: 500; color: #64748b; }
.price-card ul { list-style: none; margin: 18px 0; }
.price-card ul li { padding: 7px 0; border-bottom: 1px solid #f1f5f9; font-size: 15px; }
.price-card ul li::before { content: "✓ "; color: var(--teal); font-weight: 700; }

/* Footer */
.site-footer { background: var(--navy); color: #94a3b8; padding: 50px 0 30px; font-size: 14px; }
.site-footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; margin-bottom: 30px; }
.site-footer img { height: 38px; margin-bottom: 14px; }
.site-footer h4 { color: var(--offwhite); font-size: 15px; margin-bottom: 12px; }
.site-footer ul { list-style: none; }
.site-footer ul li { padding: 4px 0; }
.site-footer a { color: #94a3b8; }
.site-footer a:hover { color: var(--teal); }
.site-footer .fine { border-top: 1px solid #1e3a5c; padding-top: 20px; text-align: center; color: #64748b; }

/* Case study */
.case { background: var(--white); border-left: 4px solid var(--teal); border-radius: 8px; padding: 30px; margin-bottom: 24px; box-shadow: 0 1px 4px rgba(11,31,51,0.06); }
.case h3 { font-size: 21px; margin-bottom: 8px; }
.case .context { font-size: 13px; font-weight: 700; color: var(--teal); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }
.case p { color: #64748b; font-size: 15px; }
.case strong { color: var(--navy); }

/* CTA buttons wrap cleanly on mobile */
.btn-outline { margin-left: 14px; }
@media (max-width: 720px) {
  .btn { display: block; width: 100%; text-align: center; }
  .btn-outline { margin-left: 0; margin-top: 12px; }
}

@media (max-width: 720px) {
  .hero h1 { font-size: 32px; }
  /* nav: wrap instead of hiding */
  .site-header .container { flex-direction: column; gap: 10px; }
  .site-header nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
  .site-header nav a { font-size: 13px; }
}