:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #3bf0a0;
  --accent-glow: rgba(59, 240, 160, 0.15);
  --accent-dim: #2bc882;
  --card-bg: #16161f;
  --card-border: #1e1e2a;
  --old-col: #1a1520;
  --new-col: #0f1a14;
  --radius: 12px;
  --max-width: 1080px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, .badge, .col-label, .stat-number, .footer-brand {
  font-family: 'Space Grotesk', sans-serif;
}

.accent { color: var(--accent); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  text-align: center;
}
.hero-inner { max-width: var(--max-width); position: relative; z-index: 2; }
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 32px;
}
h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 48px;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.85rem; color: var(--fg-muted); margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--card-border); }

/* ---- HOW SECTION ---- */
.how {
  padding: 100px 24px;
  background: var(--bg-subtle);
}
.how-inner { max-width: var(--max-width); margin: 0 auto; }
.how h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 48px;
  line-height: 1.7;
}
.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.comparison-col {
  border-radius: var(--radius);
  padding: 32px;
}
.comparison-col.old {
  background: var(--old-col);
  border: 1px solid #2a2030;
}
.comparison-col.new {
  background: var(--new-col);
  border: 1px solid #1a3025;
}
.col-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.comparison-col.old .col-label { color: #8a7090; }
.comparison-col.new .col-label { color: var(--accent); }
.comparison-col ul { list-style: none; }
.comparison-col ul li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.95rem;
}
.comparison-col.old ul li { color: var(--fg-muted); }
.comparison-col.new ul li { color: var(--fg); }
.comparison-col ul li:last-child { border-bottom: none; }

/* ---- FEATURES ---- */
.features {
  padding: 100px 24px;
}
.features-inner { max-width: var(--max-width); margin: 0 auto; }
.features h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: var(--accent-dim); }
.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 24px;
  text-align: center;
  background: var(--bg-subtle);
}
.closing-inner { max-width: 680px; margin: 0 auto; }
.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}
.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ---- CTA BUTTON ---- */
.hero-cta, .closing-cta { margin-top: 40px; }
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0f;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 999px;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  box-shadow: 0 0 24px var(--accent-glow);
}
.cta-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 4px 32px var(--accent-glow);
}
.cta-btn:active { transform: scale(0.98); }

/* ---- FOOTER ---- */
.site-footer {
  padding: 48px 24px;
  text-align: center;
  border-top: 1px solid var(--card-border);
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ---- MOBILE ---- */
@media (max-width: 768px) {
  .hero { min-height: 80vh; padding: 60px 20px 40px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
  .comparison { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-glow { width: 350px; height: 350px; }
}
@media (max-width: 480px) {
  h1 { font-size: 2.2rem; }
  .lede { font-size: 1rem; }
  .how, .features, .closing { padding: 64px 16px; }
}