:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e6e3;
  --fg-muted: #8a8896;
  --fg-subtle: #5a586a;
  --accent: #c9f754;
  --accent-dim: #a3cc3d;
  --accent-glow: rgba(201, 247, 84, 0.12);
  --border: #2a2a3a;
  --radius: 16px;
  --radius-sm: 8px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(201, 247, 84, 0.06), transparent);
}

.hero-inner {
  max-width: 860px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid rgba(201, 247, 84, 0.25);
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  margin-bottom: 2.5rem;
  background: var(--accent-glow);
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  color: var(--fg);
  margin-bottom: 1.5rem;
}

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

.lede {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto 3.5rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  padding: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

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

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  max-width: 140px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== PROBLEM ===== */
.problem {
  padding: 8rem 2rem;
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.problem-label,
.features-label,
.how-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.problem h2,
.features h2,
.how h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 4rem;
  max-width: 700px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  transition: border-color 0.3s ease;
}

.problem-card:hover {
  border-color: rgba(201, 247, 84, 0.3);
}

.problem-icon {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-dim);
  margin-bottom: 1.25rem;
  opacity: 0.6;
}

.problem-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ===== FEATURES ===== */
.features {
  padding: 8rem 2rem;
  background: var(--bg-elevated);
}

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

.features-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-row {
  display: flex;
  align-items: flex-start;
  gap: 3rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.15;
  line-height: 1;
  flex-shrink: 0;
  width: 80px;
}

.feature-content h3 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.feature-content p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ===== HOW (Built For) ===== */
.how {
  padding: 8rem 2rem;
}

.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.how h2 {
  max-width: 800px;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.how-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.75rem 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
}

.how-card:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.how-card span {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--fg);
}

/* ===== CLOSING ===== */
.closing {
  padding: 10rem 2rem;
  text-align: center;
  position: relative;
  background: radial-gradient(ellipse 70% 50% at 50% 50%, rgba(201, 247, 84, 0.04), transparent);
}

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

.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.closing p {
  font-size: 1.3rem;
  color: var(--accent);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--fg-subtle);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 5rem 1.5rem 3rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .stat-label {
    max-width: 200px;
  }

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

  .feature-row {
    flex-direction: column;
    gap: 1rem;
  }

  .feature-number {
    font-size: 2.5rem;
    width: auto;
  }

  .how-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .problem,
  .features,
  .how {
    padding: 5rem 1.5rem;
  }

  .closing {
    padding: 6rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}