/* ── Animations · Cinematic & 3D ── */

.fade-up {
  opacity: 0;
  transform: translateY(30px) translateZ(-20px);
  animation: fadeUp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.fade-down {
  opacity: 0;
  transform: translateY(-20px) translateZ(0);
  animation: fadeDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 3D Scroll Reveal */
.reveal-3d {
  opacity: 0;
  transform: translateY(50px) rotateX(-15deg) scale(0.9);
  transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
}

.reveal-3d.active {
  opacity: 1;
  transform: translateY(0) rotateX(0) scale(1);
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0) translateZ(0);
  }
}

@keyframes fadeDown {
  to {
    opacity: 1;
    transform: translateY(0) translateZ(0);
  }
}

/* ── Floating Animation ── */
.float-anim {
  animation: float3D 6s ease-in-out infinite;
}

@keyframes float3D {
  0%, 100% {
    transform: translateY(0) rotateX(0) rotateY(0);
  }
  25% {
    transform: translateY(-10px) rotateX(2deg) rotateY(2deg);
  }
  50% {
    transform: translateY(-15px) rotateX(0) rotateY(0);
  }
  75% {
    transform: translateY(-10px) rotateX(-2deg) rotateY(-2deg);
  }
}

/* ── Heart Loader ── */
.heart {
  width: 32px;
  height: 32px;
  background: var(--primary);
  transform: rotate(45deg);
  animation: heartbeat 1.4s ease-in-out infinite;
  position: relative;
  box-shadow: 0 0 20px var(--primary-glow);
}

.heart::before,
.heart::after {
  content: '';
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 50%;
  position: absolute;
  box-shadow: 0 0 20px var(--primary-glow);
}

.heart::before {
  top: -16px;
  left: 0;
}

.heart::after {
  left: -16px;
  top: 0;
}

@keyframes heartbeat {
  0% { transform: rotate(45deg) scale(1); opacity: 1; }
  50% { transform: rotate(45deg) scale(1.15); opacity: 0.85; filter: brightness(1.2); }
  100% { transform: rotate(45deg) scale(1); opacity: 1; }
}