:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-card: #1a2332;
  --bg-accent: #0d2818;
  --fg-primary: #e8ecf1;
  --fg-secondary: #94a3b8;
  --fg-muted: #64748b;
  --accent: #34d399;
  --accent-dim: #059669;
  --accent-glow: rgba(52, 211, 153, 0.12);
  --border: #1e293b;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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 {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 80px 24px 60px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(52, 211, 153, 0.06) 0%, transparent 70%),
    var(--bg-primary);
}

.hero-inner { max-width: 740px; }

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-accent {
  background: linear-gradient(135deg, var(--accent) 0%, #6ee7b7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-visual {
  margin-top: 56px;
  width: 100%;
  max-width: 640px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ── CONTRAST ────────────────────────────────── */
.contrast {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.contrast-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.contrast-col {
  flex: 1;
}

.contrast-col h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

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

.contrast-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contrast-col.old li {
  color: var(--fg-muted);
  padding-left: 24px;
  position: relative;
}

.contrast-col.old li::before {
  content: '\2013';
  position: absolute;
  left: 0;
  color: var(--fg-muted);
}

.contrast-col.new li {
  color: var(--fg-primary);
  padding-left: 24px;
  position: relative;
}

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

.contrast-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-top: 48px;
}

.divider-line {
  width: 1px;
  height: 60px;
  background: var(--border);
}

.divider-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── CAPABILITIES ────────────────────────────── */
.capabilities {
  padding: 100px 24px;
  background: var(--bg-primary);
}

.cap-inner {
  max-width: 1040px;
  margin: 0 auto;
}

.capabilities h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cap-sub {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 580px;
  margin-bottom: 56px;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cap-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.cap-item:hover {
  border-color: var(--accent-dim);
}

.cap-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.cap-item h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.cap-item p {
  font-size: 0.92rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* ── HOW IT WORKS ────────────────────────────── */
.how-it-works {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.hiw-inner {
  max-width: 720px;
  margin: 0 auto;
}

.how-it-works h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hiw-sub {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  margin-bottom: 56px;
  max-width: 580px;
}

.hiw-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hiw-step {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.hiw-step:last-child {
  border-bottom: 1px solid var(--border);
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-dim);
  min-width: 64px;
  line-height: 1;
  padding-top: 4px;
}

.step-content h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
}

/* ── CLOSING ─────────────────────────────────── */
.closing {
  padding: 120px 24px;
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(52, 211, 153, 0.05) 0%, transparent 70%),
    var(--bg-primary);
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.2;
}

.closing p {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.closing-bold {
  color: var(--fg-primary) !important;
  font-weight: 500;
  font-family: var(--font-display);
  font-size: 1.15rem !important;
}

/* ── FOOTER ──────────────────────────────────── */
.site-footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

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

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.85rem;
}

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 768px) {
  .stat-grid {
    grid-template-columns: 1fr;
    max-width: 280px;
    margin: 0 auto;
  }

  .contrast-inner {
    flex-direction: column;
    gap: 48px;
  }

  .contrast-divider {
    flex-direction: row;
    padding-top: 0;
  }

  .divider-line {
    width: 60px;
    height: 1px;
  }

  .cap-grid {
    grid-template-columns: 1fr;
  }

  .hiw-step {
    flex-direction: column;
    gap: 12px;
  }

  .step-num {
    min-width: auto;
  }
}