/* ========================================================
   HIỆU ỨNG CÁNH HOA SEN RƠI — LOTUS PETALS FALLING EFFECT
   ======================================================== */

.falling-lotus-container {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 95;
}

.lotus-petal {
  position: absolute;
  top: -55px;
  display: block;
  user-select: none;
  pointer-events: none;
  animation: lotusPetalFall linear infinite;
  filter: drop-shadow(0 3px 6px rgba(81, 20, 25, 0.18));
  transform-origin: center center;
  will-change: transform, opacity;
}

.lotus-petal svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

@keyframes lotusPetalFall {
  0% {
    transform: translateY(-45px) translateX(0) rotate(var(--rot-start, 0deg)) rotateY(0deg) scale(var(--scale-base, 0.9));
    opacity: 0;
  }
  10% {
    opacity: var(--max-opacity, 0.88);
  }
  35% {
    transform: translateY(35vh) translateX(var(--sway-1, 35px)) rotate(calc(var(--rot-start, 0deg) + 90deg)) rotateY(130deg) scale(calc(var(--scale-base, 0.9) * 1.05));
  }
  65% {
    transform: translateY(68vh) translateX(var(--sway-2, -30px)) rotate(calc(var(--rot-start, 0deg) + 210deg)) rotateY(240deg) scale(var(--scale-base, 0.9));
    opacity: var(--max-opacity, 0.88);
  }
  90% {
    opacity: calc(var(--max-opacity, 0.88) * 0.8);
  }
  100% {
    transform: translateY(106vh) translateX(var(--sway-3, 45px)) rotate(calc(var(--rot-start, 0deg) + 360deg)) rotateY(360deg) scale(calc(var(--scale-base, 0.9) * 0.95));
    opacity: 0;
  }
}