@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Orbitron:wght@400;700;900&display=swap');

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

:root {
  --electric-blue: #00d4ff;
  --hot-pink: #ff2d7b;
  --deep-purple: #8b5cf6;
  --neon-violet: #c084fc;
  --chrome: #e2e8f0;
  --chrome-dim: rgba(226, 232, 240, 0.3);
  --bg-dark: #080414;
  --bg-panel: rgba(20, 10, 40, 0.85);
  --text-dim: rgba(139, 92, 246, 0.5);
  --border-glow: rgba(0, 212, 255, 0.2);
  --beat-green: #00ff88;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Share Tech Mono', monospace;
  background: var(--bg-dark);
  color: var(--chrome);
  overflow-x: hidden;
}

/* ─── Scanlines ─── */
.hero-scanlines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(139, 92, 246, 0.03) 2px,
    rgba(139, 92, 246, 0.03) 4px
  );
  pointer-events: none;
  z-index: 2;
}

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  z-index: 1;
  opacity: 0.7;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 700px;
  padding: 0 24px;
}

.hero-demo-ui {
  margin-bottom: 40px;
}

.demo-beat-dots {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
}

.demo-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.25);
  transition: all 0.1s;
}

.demo-dot.active {
  background: var(--beat-green);
  box-shadow: 0 0 10px var(--beat-green), 0 0 24px rgba(0, 255, 136, 0.5);
}

.demo-bpm {
  font-family: 'Orbitron', monospace;
  font-size: clamp(48px, 10vw, 80px);
  font-weight: 900;
  color: var(--electric-blue);
  text-shadow:
    0 0 20px var(--electric-blue),
    0 0 40px rgba(0, 212, 255, 0.5),
    0 0 80px rgba(0, 212, 255, 0.2);
  letter-spacing: 0.05em;
  line-height: 1;
}

.demo-bpm-label {
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.5em;
  margin-top: 4px;
}

.hero-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(24px, 5vw, 48px);
  font-weight: 700;
  color: var(--chrome);
  text-shadow: 0 0 30px rgba(139, 92, 246, 0.4);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: clamp(13px, 2vw, 18px);
  color: var(--chrome-dim);
  max-width: 500px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

/* ─── CTA Button ─── */
.cta-btn {
  display: inline-block;
  font-family: 'Orbitron', monospace;
  font-size: clamp(14px, 2.5vw, 20px);
  font-weight: 700;
  color: var(--electric-blue);
  border: 2px solid var(--electric-blue);
  padding: 14px 40px;
  text-decoration: none;
  letter-spacing: 0.15em;
  transition: all 0.3s;
  background: rgba(0, 212, 255, 0.05);
}

.cta-btn:hover {
  background: rgba(0, 212, 255, 0.15);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.4), inset 0 0 30px rgba(0, 212, 255, 0.1);
  transform: translateY(-2px);
}

.cta-btn-large {
  font-size: clamp(16px, 3vw, 24px);
  padding: 18px 56px;
}

/* ─── Video Section ─── */
.video-section {
  padding: 80px 24px;
  display: flex;
  justify-content: center;
}

.video-wrapper {
  max-width: 640px;
  width: 100%;
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.15), 0 0 80px rgba(139, 92, 246, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.video-wrapper video {
  width: 100%;
  display: block;
}

/* ─── Section Titles ─── */
.section-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(20px, 4vw, 36px);
  font-weight: 700;
  text-align: center;
  color: var(--chrome);
  text-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  letter-spacing: 0.2em;
  margin-bottom: 48px;
}

/* ─── Features ─── */
.features {
  padding: 80px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-glow);
  padding: 28px 24px;
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  border-color: var(--deep-purple);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2), 0 0 40px rgba(0, 212, 255, 0.1);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 28px;
  color: var(--electric-blue);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--neon-violet);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--chrome-dim);
  line-height: 1.6;
}

/* ─── How It Works ─── */
.how-it-works {
  padding: 80px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.steps {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.step {
  text-align: center;
  max-width: 200px;
  opacity: 0;
  transform: translateY(20px);
}

.step.visible {
  opacity: 1;
  transform: translateY(0);
}

.step-number {
  width: 48px;
  height: 48px;
  border: 2px solid var(--electric-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--electric-blue);
  margin: 0 auto 16px;
  text-shadow: 0 0 10px var(--electric-blue);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.step h3 {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--neon-violet);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.step p {
  font-size: 13px;
  color: var(--chrome-dim);
  line-height: 1.6;
}

/* ─── Download ─── */
.download {
  padding: 80px 24px;
  text-align: center;
}

.download-price {
  font-family: 'Orbitron', monospace;
  font-size: clamp(36px, 7vw, 60px);
  font-weight: 900;
  color: var(--electric-blue);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
  margin-bottom: 8px;
}

.price-note {
  font-size: clamp(14px, 2.5vw, 20px);
  color: var(--chrome-dim);
  font-weight: 400;
}

.download-platforms {
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  margin-bottom: 32px;
}

/* ─── Donate Hint ─── */
.donate-hint {
  margin-top: 16px;
  font-size: 13px;
  color: var(--chrome-dim);
  letter-spacing: 0.1em;
}

.github-link {
  display: inline-block;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

.github-link:hover {
  color: var(--neon-violet);
}

/* ─── Footer ─── */
.footer {
  padding: 48px 24px;
  text-align: center;
  border-top: 1px solid rgba(139, 92, 246, 0.15);
}

.footer-logo {
  width: 60px;
  opacity: 0.6;
  filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.3));
  transition: all 0.3s;
}

.footer-logo-link:hover .footer-logo {
  opacity: 1;
  filter:
    drop-shadow(0 0 15px rgba(255, 45, 123, 0.6))
    drop-shadow(0 0 30px rgba(0, 212, 255, 0.4));
}

.footer-links {
  margin: 16px 0;
  display: flex;
  gap: 24px;
  justify-content: center;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--electric-blue);
}

.footer-copy {
  font-size: 11px;
  color: rgba(139, 92, 246, 0.3);
  letter-spacing: 0.1em;
}

/* ─── Scroll reveal transition ─── */
.feature-card,
.step {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
  .hero-blob {
    width: 300px;
    height: 300px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }

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