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

:root {
  --navy: #0f1b2d;
  --blue: #1d4ed8;
  --blue-light: #3b82f6;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --radius: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  z-index: 100;
}
.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}
.nav-links a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--navy); }
.nav-links a.btn-nav {
  background: var(--navy);
  color: var(--white);
  padding: 0.45rem 1rem;
  border-radius: var(--radius);
  transition: background 0.15s;
}
.nav-links a.btn-nav:hover { background: var(--blue); }

/* Hero */
.hero {
  text-align: center;
  padding: 5rem 2rem 4rem;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 680px;
  margin: 0 auto 1rem;
}
.hero p {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 540px;
  margin: 0 auto 2rem;
}
.hero-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

.btn-primary {
  background: var(--navy);
  color: var(--white);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  display: inline-block;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--blue); }
.btn-secondary {
  background: var(--white);
  color: var(--navy);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  display: inline-block;
  border: 2px solid var(--gray-200);
  transition: border-color 0.15s;
}
.btn-secondary:hover { border-color: var(--navy); }

/* Trust bar */
.trust-bar {
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--gray-400);
  background: var(--white);
}

/* Features */
.features {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.section-label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.5rem;
}
.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}
.section-subtitle {
  text-align: center;
  color: var(--gray-600);
  margin-bottom: 3rem;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 1.75rem;
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--navy);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--white);
  font-size: 1.25rem;
}
.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* How it works */
.how-it-works {
  padding: 4rem 2rem;
  background: var(--navy);
  color: var(--white);
}
.how-it-works .section-label { color: var(--teal-light); }
.how-it-works .section-title { color: var(--white); }
.how-it-works .section-subtitle { color: var(--gray-400); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.step { text-align: center; }
.step-number {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal-light);
  margin-bottom: 0.5rem;
}
.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.step p {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.6;
}

/* Pricing */
.pricing {
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.plan-card {
  border: 2px solid var(--gray-200);
  border-radius: 12px;
  padding: 2rem;
  background: var(--white);
}
.plan-card.popular {
  border-color: var(--navy);
  position: relative;
}
.plan-card.popular::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--navy);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.05em;
}
.plan-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.25rem;
}
.plan-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-400);
}
.plan-desc {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}
.plan-features {
  list-style: none;
  margin-bottom: 1.5rem;
}
.plan-features li {
  font-size: 0.9rem;
  color: var(--gray-800);
  padding: 0.3rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.plan-features li::before {
  content: '✓';
  color: var(--teal);
  font-weight: 700;
  flex-shrink: 0;
}
.plan-cta {
  display: block;
  text-align: center;
  padding: 0.7rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s;
}
.plan-cta-outline {
  border: 2px solid var(--gray-200);
  color: var(--navy);
}
.plan-cta-outline:hover { border-color: var(--navy); }
.plan-cta-solid {
  background: var(--navy);
  color: var(--white);
}
.plan-cta-solid:hover { background: var(--blue); }

/* FAQ */
.faq {
  padding: 4rem 2rem;
  max-width: 720px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--gray-200);
  padding: 1.25rem 0;
}
.faq-item:first-child { padding-top: 0; }
.faq-q {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-a {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-top: 0.5rem;
  line-height: 1.7;
  display: none;
}
.faq-item.open .faq-a { display: block; }

/* CTA */
.cta-section {
  padding: 5rem 2rem;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  text-align: center;
}
.cta-section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}
.cta-section p {
  color: var(--gray-600);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* Footer */
footer {
  background: var(--navy);
  color: var(--gray-400);
  padding: 3rem 2rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
}
.footer-brand { color: var(--white); }
.footer-brand h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.footer-brand p { font-size: 0.85rem; line-height: 1.6; }
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  max-width: 1100px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-bottom a { color: var(--gray-400); text-decoration: none; }
.footer-bottom a:hover { color: var(--white); }

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero { padding: 3rem 1.5rem 2.5rem; }
  .features, .pricing, .faq { padding-left: 1.5rem; padding-right: 1.5rem; }
}