:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-card: #18181b;
  --bg-card-hover: #1f1f23;
  --fg-primary: #f4f4f5;
  --fg-secondary: #a1a1aa;
  --fg-muted: #71717a;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.15);
  --accent-glow: rgba(245, 158, 11, 0.08);
  --border: #27272a;
  --radius: 12px;
  --radius-lg: 20px;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── HERO ── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-glow) 0%, transparent 70%),
    var(--bg-primary);
}

.hero-inner {
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--fg-primary);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

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

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

/* ── PROBLEM ── */
.problem {
  padding: 120px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.problem-label,
.features-label,
.how-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.problem h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--fg-primary);
}

.problem-text {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
}

/* ── FEATURES ── */
.features {
  padding: 120px 24px;
  background: var(--bg-primary);
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

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

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-dim);
}

.feature-card-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  gap: 0 20px;
  align-items: start;
  background:
    linear-gradient(135deg, var(--accent-glow) 0%, transparent 50%),
    var(--bg-card);
  border-color: rgba(245, 158, 11, 0.2);
}

.feature-card-large .feature-icon {
  grid-row: span 2;
  font-size: 2.8rem;
  align-self: center;
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 8px;
}

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

/* ── HOW IT WORKS ── */
.how {
  padding: 120px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.how-step {
  position: relative;
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 16px;
}

.how-step h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 10px;
}

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

/* ── CLOSING ── */
.closing {
  padding: 140px 24px;
  text-align: center;
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, var(--accent-glow) 0%, transparent 70%),
    var(--bg-primary);
}

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

.closing h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-text {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.closing-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* ── FOOTER ── */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg-primary);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-large {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .feature-card-large .feature-icon {
    grid-row: auto;
    margin-bottom: 12px;
  }

  .how-steps {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-stat-row {
    flex-direction: column;
    gap: 24px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .hero {
    min-height: auto;
    padding: 100px 20px 80px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}