/* ── Chord Companion Brochure – Custom Styles ──────────────── */

:root {
  --cc-black: #0a0a0a;
  --cc-white: #fafafa;
  --cc-gold: #F0BC45;
  --cc-charcoal: #26272B;
  --cc-cream: #FFF4C6;
  --cc-taupe: #A08979;
  --cc-spruce: #2F4F43;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  background: var(--cc-black);
  color: var(--cc-white);
}

/* Piano-stripe top accent */
.piano-stripe {
  background: repeating-linear-gradient(
    90deg,
    var(--cc-white) 0 48px,
    var(--cc-black) 48px 64px
  );
  height: 6px;
}

/* Jazz-cat background section */
.jazz-cat-bg {
  position: relative;
  overflow: hidden;
}
.jazz-cat-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/jazz-cat.png') center / contain no-repeat;
  opacity: 0.04;
  filter: grayscale(1);
  pointer-events: none;
}

/* Glass card */
.glass-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 1.5rem;
}

/* Gold accent underline */
.gold-underline {
  text-decoration: underline;
  text-decoration-color: var(--cc-gold);
  text-underline-offset: 4px;
  text-decoration-thickness: 3px;
}

/* CTA buttons */
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--cc-gold);
  color: var(--cc-black);
  font-weight: 600;
  border-radius: 9999px;
  transition: background 0.2s, transform 0.15s;
}
.btn-gold:hover { background: #d9a93d; transform: translateY(-1px); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--cc-white);
  font-weight: 600;
  border-radius: 9999px;
  transition: border-color 0.2s, background 0.2s;
}
.btn-outline:hover { border-color: var(--cc-gold); background: rgba(240, 188, 69, 0.08); }

/* Responsive video embed */
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

/* Fade-in on scroll (activated via IntersectionObserver) */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Nav */
.site-nav {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 10, 10, 0.85);
}