/* ==========================================================================
   GEARBOX GIANTS - KEYFRAMES & ANIMATIONS
   ========================================================================== */

@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 10px var(--amber-400);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.15);
    box-shadow: 0 0 20px var(--amber-400);
  }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spin-reverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(1000%); }
}

/* Entrance Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Rotating Gear Icon Helper */
.spin-on-hover:hover svg {
  animation: spin-slow 4s linear infinite;
}

/* UK Reg Plate Pulse Focus */
.uk-reg-box:focus-within {
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.5), 0 10px 25px rgba(0,0,0,0.5);
  border-color: #f59e0b;
}