:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6e3;
  --fg-muted: #8a8690;
  --fg-dim: #5a5660;
  --accent: #c4f54a;
  --accent-dim: rgba(196, 245, 74, 0.15);
  --border: #2a2a35;
  --radius: 12px;
  --font-body: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.accent { color: var(--accent); }
.mono { font-family: var(--font-mono); font-size: 0.9em; color: var(--accent); }

/* ===== HERO ===== */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, rgba(196, 245, 74, 0.06) 0%, transparent 60%);
}

.hero-inner {
  max-width: 760px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.waveform-visual {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 6px;
  height: 100px;
  margin-top: 16px;
}

.wave-bar {
  width: 6px;
  background: linear-gradient(to top, var(--accent), rgba(196, 245, 74, 0.3));
  border-radius: 3px;
  animation: pulse 2.4s ease-in-out infinite;
}

.wave-bar:nth-child(odd) { animation-delay: 0.2s; }
.wave-bar:nth-child(3n) { animation-delay: 0.5s; }
.wave-bar:nth-child(4n) { animation-delay: 0.8s; }
.wave-bar:nth-child(5n) { animation-delay: 1.1s; }

@keyframes pulse {
  0%, 100% { transform: scaleY(1); opacity: 0.7; }
  50% { transform: scaleY(0.6); opacity: 1; }
}

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 24px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.problem-left h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  position: sticky;
  top: 40px;
}

.problem-card {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.problem-card:last-child { border-bottom: none; }

.problem-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}

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

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

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

.how-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  text-align: center;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

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

.how-item:hover { border-color: rgba(196, 245, 74, 0.3); }

.how-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 10px;
  margin-bottom: 20px;
}

.how-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ===== GENRES ===== */
.genres {
  padding: 100px 24px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.genres-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.genres-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

.genre-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 56px;
}

.genre-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 100px;
  transition: all 0.2s;
}

.genre-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.genre-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: left;
}

.genre-detail-item {
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.genre-detail-item .mono {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
  font-weight: 500;
}

.genre-detail-item p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 100%, rgba(196, 245, 74, 0.06) 0%, transparent 60%);
}

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

.closing h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

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

/* ===== HERO CTA ===== */
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0a0a0f;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 100px;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s;
  margin-bottom: 48px;
}

.hero-cta:hover {
  opacity: 0.88;
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

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

.footer-logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .problem-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .problem-left h2 {
    position: static;
  }

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

  .genre-detail {
    grid-template-columns: 1fr;
  }

  .hero { min-height: auto; padding: 80px 24px 60px; }

  .waveform-visual { gap: 4px; }
  .wave-bar { width: 4px; }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}