:root {
  --bg-deep: #0a0a0f;
  --bg-surface: #12121a;
  --bg-card: #1a1a26;
  --bg-card-hover: #222233;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #6ee7b7;
  --accent-glow: rgba(110, 231, 183, 0.15);
  --accent-dim: #3ba578;
  --negative: #f87171;
  --radius: 12px;
  --max-w: 1100px;
}

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

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

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.15;
}

/* ---- NAV ---- */
.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px 24px;
}
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  padding: 40px 24px 80px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: left;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero h1 .accent {
  color: var(--accent);
}
.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
}
.hero-stats {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 60px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--fg-dim);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: var(--bg-surface);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ---- CONTRAST ---- */
.contrast {
  padding: 100px 24px;
}
.contrast-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.contrast h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}
.contrast-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--fg-dim);
  border-radius: var(--radius);
  overflow: hidden;
}
.contrast-col {
  padding: 40px 36px;
}
.contrast-col.old {
  background: var(--bg-surface);
}
.contrast-col.new {
  background: var(--bg-card);
}
.contrast-header {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}
.contrast-col.old .contrast-header {
  color: var(--negative);
}
.contrast-col.new .contrast-header {
  color: var(--accent);
}
.contrast-col ul {
  list-style: none;
}
.contrast-col li {
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--fg-muted);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.contrast-col li:last-child {
  border-bottom: none;
}
.contrast-col.old li::before {
  content: '\2715 ';
  color: var(--negative);
  margin-right: 8px;
}
.contrast-col.new li::before {
  content: '\2713 ';
  color: var(--accent);
  margin-right: 8px;
}

/* ---- FEATURES ---- */
.features {
  padding: 100px 24px;
  background: var(--bg-surface);
}
.features-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.features-header {
  margin-bottom: 56px;
}
.features-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.features-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 520px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--fg-dim);
  border-radius: var(--radius);
  overflow: hidden;
}
.feature-card {
  background: var(--bg-card);
  padding: 36px 32px;
  transition: background 0.2s;
}
.feature-card:hover {
  background: var(--bg-card-hover);
}
.feature-card.feature-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  gap: 0 24px;
  padding: 44px 40px;
}
.feature-large .feature-icon {
  grid-row: span 2;
  font-size: 2.4rem;
  align-self: start;
}
.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
  display: block;
}
.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--fg);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 24px;
  text-align: center;
}
.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}
.closing h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.closing-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 48px;
}
.closing-vision {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 40px;
}
.closing-vision p {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.01em;
}

/* ---- FOOTER ---- */
.footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--accent);
}
.footer-sub {
  font-size: 0.85rem;
  color: var(--fg-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }
  .contrast-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .feature-card.feature-large {
    grid-column: span 1;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .feature-large .feature-icon {
    grid-row: auto;
    margin-bottom: 12px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
}