:root {
  --bg: #0d1117;
  --fg: #ffffff;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --muted: #8b949e;
  --card: #161b22;
  --card-border: #21262d;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  padding: 22px 48px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 700;
  font-size: 20px;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.nav-logo span { color: var(--accent); }

.nav-cta {
  background: var(--accent);
  color: white;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--accent-light); }

/* HERO */
.hero { padding: 96px 48px 80px; max-width: 860px; }

.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-headline {
  font-weight: 800;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 44px;
}

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 15px 34px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }

/* PROBLEM / SOLUTION */
.problem-solution { padding: 80px 48px; border-top: 1px solid var(--card-border); border-bottom: 1px solid var(--card-border); }

.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }

.section-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-headline {
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.4px;
  color: var(--fg);
  margin-bottom: 16px;
}

.section-body { font-size: 15px; color: var(--muted); line-height: 1.7; }

.check-list { list-style: none; margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.check-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--fg); line-height: 1.5; }
.check-list li svg { flex-shrink: 0; margin-top: 3px; }
.problem-list svg { color: #f85149; }
.solution-list svg { color: var(--accent); }

/* PRICING */
.pricing { padding: 80px 48px; }

.pricing-header { text-align: center; margin-bottom: 56px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.tier {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
}

.tier.popular { border-color: var(--accent); position: relative; }

.tier.popular::before {
  content: 'Most Popular';
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.tier-name { font-weight: 700; font-size: 17px; color: var(--fg); margin-bottom: 8px; }
.tier-price { font-weight: 800; font-size: 38px; color: var(--fg); margin-bottom: 4px; line-height: 1; }
.tier-price span { font-size: 15px; font-weight: 400; color: var(--muted); }
.tier-desc { font-size: 13px; color: var(--muted); margin-bottom: 24px; line-height: 1.6; }

.tier-deliverables { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; flex: 1; }
.tier-deliverables li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--fg); }
.tier-deliverables li svg { color: var(--accent); flex-shrink: 0; }

.btn-tier {
  display: block;
  text-align: center;
  background: var(--accent);
  color: white;
  padding: 13px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.btn-tier:hover { background: var(--accent-light); }

/* HOW IT WORKS */
.howitworks {
  padding: 80px 48px;
  background: var(--card);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}
.howitworks .section-eyebrow { text-align: center; }
.howitworks .section-headline { text-align: center; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 52px; }

.step-card { border-top: 2px solid var(--accent); padding-top: 24px; }

.step-num {
  font-weight: 800;
  font-size: 34px;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
  line-height: 1;
}

.step-title { font-weight: 700; font-size: 17px; color: var(--fg); margin-bottom: 10px; }
.step-desc { font-size: 14px; color: var(--muted); line-height: 1.7; }

/* SOCIAL PROOF */
.socialproof { padding: 80px 48px; }
.socialproof-header { text-align: center; margin-bottom: 48px; }

.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.testimonial {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 30px 28px;
}

.testimonial-quote {
  font-size: 15px;
  color: var(--fg);
  line-height: 1.7;
  margin-bottom: 22px;
  font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: 12px; }

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  color: white;
  flex-shrink: 0;
}

.testimonial-name { font-weight: 600; font-size: 14px; color: var(--fg); }
.testimonial-role { font-size: 12px; color: var(--muted); }

/* FAQ */
.faq { padding: 80px 48px; border-top: 1px solid var(--card-border); border-bottom: 1px solid var(--card-border); }
.faq-header { text-align: center; margin-bottom: 48px; }

.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; }

.faq-item { border-bottom: 1px solid var(--card-border); }

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  gap: 16px;
}
.faq-q svg { color: var(--accent); flex-shrink: 0; }

.faq-a {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  padding-bottom: 22px;
  display: none;
}
.faq-item.open .faq-a { display: block; }

/* FINAL CTA */
.final-cta { padding: 100px 48px; text-align: center; }

.final-cta-headline {
  font-weight: 800;
  font-size: clamp(26px, 4vw, 44px);
  color: var(--fg);
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 14px;
}

.final-cta-sub { font-size: 16px; color: var(--muted); margin-bottom: 36px; }

/* FOOTER */
.footer {
  padding: 28px 48px;
  border-top: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo { font-weight: 700; font-size: 15px; color: var(--fg); }
.footer-logo span { color: var(--accent); }
.footer-copy { font-size: 12px; color: var(--muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .pricing-grid, .testimonials, .steps { grid-template-columns: 1fr; }
  .split-grid { grid-template-columns: 1fr; }
  .tier.popular { margin-top: 20px; }
}

@media (max-width: 768px) {
  .nav, .hero, .problem-solution, .pricing, .howitworks, .socialproof, .faq, .final-cta { padding-left: 24px; padding-right: 24px; }
  .footer { padding: 24px; flex-direction: column; gap: 8px; align-items: flex-start; }
  .hero-headline { letter-spacing: -1px; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 36px; }
  .tier-price { font-size: 30px; }
}