/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: #0a0a0f;
  color: #e0e0e6;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === Layout === */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* === Colors === */
:root {
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --green: #22c55e;
  --surface: #12121a;
  --surface-2: #1a1a26;
  --border: #2a2a3a;
  --text: #e0e0e6;
  --text-dim: #8888a0;
  --text-bright: #ffffff;
}

/* === Nav === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { font-size: 1.4rem; font-weight: 800; letter-spacing: -0.5px; }
.logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.9rem; color: var(--text-dim); transition: color 0.2s; }
.nav-links a:hover { color: var(--text-bright); }
.mobile-menu { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-menu span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.2s; }

/* === Buttons === */
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 600;
  font-size: 0.95rem; transition: all 0.2s; border: none; cursor: pointer;
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; text-align: center; }
.btn-outline {
  background: transparent; border: 1px solid var(--border); color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

/* === Hero === */
.hero {
  padding: 160px 0 100px; text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
}
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 100px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 0.82rem; color: var(--text-dim); margin-bottom: 28px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem); font-weight: 800;
  line-height: 1.1; margin-bottom: 24px; letter-spacing: -1.5px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent), #818cf8, var(--accent));
  background-size: 200% 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  animation: shimmer 4s ease-in-out infinite;
}
@keyframes shimmer { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.hero-sub {
  max-width: 640px; margin: 0 auto 36px; font-size: 1.15rem;
  color: var(--text-dim); line-height: 1.7;
}
.hero-cta { margin-bottom: 56px; }
.hero-note { margin-top: 12px; font-size: 0.82rem; color: var(--text-dim); }
.hero-stats {
  display: flex; justify-content: center; align-items: center; gap: 40px;
  padding: 32px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; max-width: 680px; margin: 0 auto;
}
.stat { text-align: center; }
.stat-num { display: block; font-size: 1.8rem; font-weight: 800; color: var(--text-bright); }
.stat-label { font-size: 0.82rem; color: var(--text-dim); }
.stat-divider { width: 1px; height: 48px; background: var(--border); }

/* === Problem === */
.problem { padding: 100px 0; }
.problem h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 48px; }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.problem-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 32px;
  transition: border-color 0.3s;
}
.problem-card:hover { border-color: var(--accent); }
.problem-icon { font-size: 2rem; margin-bottom: 16px; }
.problem-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.problem-card p { color: var(--text-dim); font-size: 0.92rem; }

/* === How It Works === */
.how { padding: 100px 0; background: var(--surface); }
.how h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--text-dim); margin-bottom: 56px; font-size: 1.05rem; }
.steps { max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; gap: 40px; }
.step { display: flex; gap: 24px; align-items: flex-start; }
.step-num {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 12px;
  background: var(--accent); color: #fff; font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.step-content h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.step-content p { color: var(--text-dim); font-size: 0.92rem; }

/* === Testimonials === */
.proof { padding: 100px 0; }
.proof h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 48px; }
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 32px;
}
.stars { color: #f59e0b; font-size: 1.2rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial p { font-size: 0.95rem; line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonial-author { font-size: 0.85rem; color: var(--text-dim); }
.testimonial-author strong { color: var(--text); }

/* === Pricing === */
.pricing { padding: 100px 0; background: var(--surface); }
.pricing h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 16px; }
.pricing-grid.two-col { grid-template-columns: repeat(2, 1fr); max-width: 780px; margin-left: auto; margin-right: auto; }
.price-card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 16px;
  padding: 36px; position: relative; display: flex; flex-direction: column;
}
.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow);
  transform: scale(1.04);
}
.price-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 0.75rem; font-weight: 700;
  padding: 4px 16px; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.5px;
}
.price-tier { font-size: 0.9rem; font-weight: 600; color: var(--text-dim); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; }
.price-amount { font-size: 2.8rem; font-weight: 800; margin-bottom: 28px; }
.price-amount span { font-size: 1rem; font-weight: 500; color: var(--text-dim); }
.price-features { margin-bottom: 32px; flex-grow: 1; }
.price-features li {
  padding: 8px 0; font-size: 0.9rem; color: var(--text-dim);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  padding-left: 20px; position: relative;
}
.price-features li::before {
  content: "\2713"; position: absolute; left: 0; color: var(--green); font-weight: 700;
}

/* === ROI === */
.roi { padding: 100px 0; }
.roi h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 40px; }
.roi-box {
  max-width: 600px; margin: 0 auto; background: var(--surface);
  border: 1px solid var(--border); border-radius: 16px; padding: 36px;
}
.roi-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.95rem;
}
.roi-row:last-child { border-bottom: none; }
.roi-row.total { padding-top: 20px; margin-top: 8px; border-top: 2px solid var(--accent); border-bottom: none; }
.roi-val { font-weight: 700; color: var(--text-bright); }
.roi-val.highlight { color: var(--green); font-size: 1.1rem; }

/* === FAQ === */
.faq { padding: 100px 0; background: var(--surface); }
.faq h2 { text-align: center; font-size: 2rem; font-weight: 700; margin-bottom: 48px; }
.faq-list { max-width: 680px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; background: none; border: none; color: var(--text); text-align: left;
  padding: 20px 0; font-size: 1rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-family: inherit;
}
.faq-q::after { content: "+"; font-size: 1.4rem; color: var(--text-dim); transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-a { max-height: 200px; }
.faq-a p { padding-bottom: 20px; color: var(--text-dim); font-size: 0.92rem; line-height: 1.7; }

/* === CTA === */
.cta {
  padding: 100px 0; text-align: center;
  background: radial-gradient(ellipse at 50% 100%, rgba(59, 130, 246, 0.1) 0%, transparent 60%);
}
.cta h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.cta > .container > p { color: var(--text-dim); margin-bottom: 40px; font-size: 1.05rem; }
.cta-form {
  max-width: 420px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px;
}
.cta-form input, .cta-form select {
  width: 100%; padding: 14px 16px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font-size: 0.95rem; font-family: inherit;
  outline: none; transition: border-color 0.2s;
}
.cta-form input:focus, .cta-form select:focus { border-color: var(--accent); }
.cta-form select { appearance: none; cursor: pointer; }

/* === Footer === */
.footer { padding: 48px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.footer-brand { text-align: center; }
.footer-brand p { color: var(--text-dim); font-size: 0.85rem; margin-top: 8px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.85rem; color: var(--text-dim); }
.footer-links a:hover { color: var(--text-bright); }
.footer-copy { font-size: 0.8rem; color: var(--text-dim); }

/* === Mobile === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: var(--surface);
    padding: 24px; gap: 16px; border-bottom: 1px solid var(--border);
  }
  .problem-grid, .testimonials, .pricing-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 48px; height: 1px; }
  .hero h1 { font-size: 2.2rem; }
}