:root {
  --bg-primary: #0a0b0f;
  --bg-secondary: #12141c;
  --bg-card: #181a24;
  --fg-primary: #f0f0f2;
  --fg-secondary: #9a9bab;
  --fg-muted: #5c5d6e;
  --accent: #3bef8a;
  --accent-dim: rgba(59, 239, 138, 0.12);
  --accent-glow: rgba(59, 239, 138, 0.25);
  --red-soft: #ff6b6b;
  --border: rgba(255,255,255,0.06);
  --radius: 12px;
  --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-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  overflow: hidden;
}

.hero-inner {
  max-width: 780px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
  border: 1px solid rgba(59, 239, 138, 0.15);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 7vw, 76px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 28px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 19px;
  color: var(--fg-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat { text-align: center; }

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--fg-primary);
  letter-spacing: -1px;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
}

/* ===== SIGNALS (Features) ===== */
.signals {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.signals-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.signals h2, .how h2, .closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 48px;
}

.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.25s ease;
}

.signal-card:hover {
  border-color: rgba(59, 239, 138, 0.2);
}

.signal-card-wide {
  grid-column: 1 / -1;
}

.signal-icon {
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 16px;
}

.signal-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.signal-card p {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== HOW (Comparison) ===== */
.how {
  padding: 100px 24px;
}

.how-inner {
  max-width: 900px;
  margin: 0 auto;
}

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

.compare-col {
  border-radius: var(--radius);
  padding: 36px 32px;
}

.compare-old {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.compare-new {
  background: linear-gradient(135deg, rgba(59,239,138,0.08) 0%, rgba(59,239,138,0.02) 100%);
  border: 1px solid rgba(59, 239, 138, 0.18);
}

.compare-header {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.compare-old .compare-header { color: var(--fg-muted); }
.compare-new .compare-header { color: var(--accent); }

.compare-col ul {
  list-style: none;
  padding: 0;
}

.compare-col li {
  font-size: 15px;
  color: var(--fg-secondary);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  line-height: 1.6;
}

.compare-old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--red-soft);
  font-size: 13px;
  opacity: 0.7;
}

.compare-new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 14px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 24px 80px;
  background: var(--bg-secondary);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing-text {
  font-size: 18px;
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 40px;
}

.closing-vision {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.5px;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 48px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 700px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--fg-muted);
}

/* ===== MOBILE ===== */
@media (max-width: 700px) {
  .hero { min-height: auto; padding: 60px 20px 50px; }
  .lede { font-size: 17px; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 26px; }
  .stat-divider { display: none; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal-card-wide { grid-column: auto; }
  .comparison { grid-template-columns: 1fr; }
  .signals, .how, .closing { padding: 60px 20px; }
  .closing-vision { font-size: 19px; }
}