/* =====================================================================
   NAVIGATION, MUSIC CONTROL, SCROLL PROGRESS, FLOATING PETALS
   ===================================================================== */

.petals-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  overflow: hidden;
}
.petal {
  position: absolute;
  top: -40px;
  font-size: 18px;
  opacity: 0.8;
  will-change: transform;
  animation: petal-fall linear infinite;
  color: var(--gold);
}
@keyframes petal-fall {
  to { transform: translateY(110vh) translateX(var(--drift, 40px)) rotate(360deg); }
}

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--maroon));
  z-index: 100;
  transition: width 0.1s linear;
}

.music-control {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 40px;
  border: 1px solid var(--gold);
  background: rgba(251, 246, 239, 0.92);
  backdrop-filter: blur(6px);
  color: var(--maroon);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s var(--ease);
}
.music-control:hover { transform: scale(1.05); }
.music-control.playing .music-icon { animation: spin-note 2s linear infinite; }
@keyframes spin-note { from { transform: rotate(0); } to { transform: rotate(360deg); } }

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: transparent;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.site-nav.scrolled {
  background: rgba(251, 246, 239, 0.92);
  backdrop-filter: blur(8px);
  padding: 12px 32px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}
.nav-logo {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.35);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.nav-brand:hover .nav-logo { transform: scale(1.06); box-shadow: 0 6px 20px rgba(0,0,0,0.4); }
.site-nav.scrolled .nav-logo { width: 40px; height: 40px; box-shadow: 0 3px 10px rgba(0,0,0,0.18); }

.nav-links {
  display: flex;
  gap: 30px;
}
.nav-links a {
  color: var(--ivory);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  transition: color 0.4s var(--ease), opacity 0.2s;
  opacity: 0.9;
}
.nav-links a:hover { opacity: 1; color: var(--gold-light); }
.site-nav.scrolled .nav-links a { color: var(--ink); }
.site-nav.scrolled .nav-links a:hover { color: var(--maroon); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ivory);
  transition: background 0.3s;
}
.site-nav.scrolled .nav-toggle span { background: var(--maroon); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: 78%;
    max-width: 320px;
    background: var(--ivory);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px;
    gap: 26px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { color: var(--ink); font-size: 1.1rem; }
  .nav-toggle { display: flex; }
  .music-control { bottom: 16px; right: 16px; padding: 10px 14px; }
  .music-label { display: none; }
}