:root {
  --bg: #0c0f13;
  --bg-surface: #141922;
  --bg-elevated: #1a2233;
  --fg: #e8eaed;
  --fg-muted: #8b95a5;
  --accent: #3dd68c;
  --accent-glow: rgba(61, 214, 140, 0.15);
  --warm: #f0c27a;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1120px;
  --space-xl: clamp(80px, 10vw, 140px);
  --space-lg: clamp(48px, 6vw, 80px);
  --space-md: clamp(24px, 3vw, 40px);
  --space-sm: 16px;
  --radius: 16px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-md) var(--space-lg);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(61,214,140,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(240,194,122,0.06) 0%, transparent 60%),
    linear-gradient(180deg, #0c0f13 0%, #111720 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.hero-lede {
  max-width: 580px;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--fg-muted);
  line-height: 1.7;
}

.hero-stats {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: var(--space-lg) auto 0;
  width: 100%;
  display: flex;
  gap: var(--space-lg);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--accent);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 4px;
}

/* ---- FEATURES ---- */
.features {
  padding: var(--space-xl) var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}

.features-header {
  margin-bottom: var(--space-lg);
}

.features-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.features-sub {
  max-width: 540px;
  color: var(--fg-muted);
  margin-top: var(--space-sm);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: var(--space-md);
  transition: border-color 0.3s;
}

.feature-card:hover {
  border-color: rgba(61,214,140,0.25);
}

.feature-card--large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
  border-color: rgba(61,214,140,0.12);
}

.feature-icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 12px;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 8px;
}

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

/* ---- HOW / COMPARISON ---- */
.how {
  padding: var(--space-xl) var(--space-md);
  background: var(--bg-surface);
}

.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.how-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.how-col {
  padding: var(--space-md);
  border-radius: var(--radius);
}

.how-col--old {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
}

.how-col--new {
  background: var(--accent-glow);
  border: 1px solid rgba(61,214,140,0.2);
}

.how-col h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.how-col--old h3 { color: var(--fg-muted); }
.how-col--new h3 { color: var(--accent); }

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

.how-col ul li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.how-col--old ul li::before {
  content: '\00D7';
  position: absolute;
  left: 0;
  color: #ff6b6b;
  font-weight: 700;
}

.how-col--new ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.how-col--new ul li { color: var(--fg); }

/* ---- CLOSING ---- */
.closing {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: var(--space-md);
  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: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .feature-card--large {
    grid-column: 1;
  }
  .how-comparison {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.5rem;
  }
}