:root {
  --bg: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #1a2236;
  --bg-card-old: #1c1215;
  --bg-card-new: #0f1f1a;
  --fg: #e8ecf4;
  --fg-muted: #8b95a8;
  --fg-dim: #5b6478;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.15);
  --green: #34d399;
  --green-glow: rgba(52, 211, 153, 0.12);
  --red-muted: #f87171;
  --red-glow: rgba(248, 113, 113, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === HERO === */
.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero > * { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  background: rgba(56, 189, 248, 0.06);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  max-width: 700px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 56px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-dim);
  max-width: 160px;
  text-align: center;
  line-height: 1.4;
}

/* === CONTRAST === */
.contrast {
  padding: 80px 24px;
  max-width: 960px;
  margin: 0 auto;
}

.contrast-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contrast-card {
  border-radius: var(--radius);
  padding: 36px 32px;
}

.contrast-card.old {
  background: var(--bg-card-old);
  border: 1px solid rgba(248, 113, 113, 0.15);
}

.contrast-card.new {
  background: var(--bg-card-new);
  border: 1px solid rgba(52, 211, 153, 0.2);
}

.contrast-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.contrast-card.old .contrast-label { color: var(--red-muted); }
.contrast-card.new .contrast-label { color: var(--green); }

.contrast-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contrast-card.old li {
  color: var(--fg-muted);
  padding-left: 22px;
  position: relative;
  font-size: 0.95rem;
}

.contrast-card.old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--red-muted);
  opacity: 0.6;
  font-size: 0.8rem;
  top: 2px;
}

.contrast-card.new li {
  color: var(--fg);
  padding-left: 22px;
  position: relative;
  font-size: 0.95rem;
}

.contrast-card.new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.9rem;
  top: 1px;
}

/* === FEATURES === */
.features {
  padding: 100px 24px;
  max-width: 1040px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: 64px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.features-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.3s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(56, 189, 248, 0.2);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 18px;
  display: block;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--fg);
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* === PROOF === */
.proof {
  padding: 80px 24px;
  background: var(--bg-surface);
}

.proof-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.proof-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.proof-content > p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.proof-points {
  display: flex;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}

.proof-point {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.proof-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}

.proof-text {
  font-size: 0.82rem;
  color: var(--fg-dim);
  max-width: 180px;
  text-align: center;
  line-height: 1.4;
}

/* === CLOSING === */
.closing {
  padding: 100px 24px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--fg), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

/* === FOOTER === */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  color: var(--fg-dim);
  font-size: 0.85rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--fg-muted);
}

.footer-divider {
  opacity: 0.3;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { min-height: 75vh; padding: 60px 20px 40px; }
  .hero-stats { gap: 32px; }
  .contrast-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .proof-points { gap: 36px; }
  .contrast-card { padding: 28px 24px; }
  .feature-card { padding: 28px 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .stat-number { font-size: 2rem; }
  .proof-points { flex-direction: column; align-items: center; }
}