/* ===== Shared Keyframes ===== */

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.7; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(91, 155, 213, 0.4); }
  50% { box-shadow: 0 0 20px rgba(91, 155, 213, 0.8); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes rippleExpand {
  to { transform: scale(4); opacity: 0; }
}

@keyframes borderDraw {
  0% { stroke-dashoffset: 100; }
  100% { stroke-dashoffset: 0; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

@keyframes heartBeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.3); }
  30% { transform: scale(1); }
  45% { transform: scale(1.15); }
}

@keyframes wave {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(2.5); }
}

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

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes expandWidth {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes rotateIn {
  from { transform: rotate(-180deg) scale(0); opacity: 0; }
  to { transform: rotate(0) scale(1); opacity: 1; }
}

@keyframes flipIn {
  from { transform: perspective(400px) rotateY(90deg); opacity: 0; }
  to { transform: perspective(400px) rotateY(0); opacity: 1; }
}

@keyframes morphSquare {
  0%, 100% { border-radius: 8px; transform: rotate(0deg); }
  25% { border-radius: 50%; transform: rotate(90deg); }
  50% { border-radius: 8px; transform: rotate(180deg); }
  75% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; transform: rotate(270deg); }
}

@keyframes curtainLeft {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

@keyframes curtainRight {
  from { transform: translateX(0); }
  to { transform: translateX(100%); }
}

@keyframes typewriterCaret {
  0%, 100% { border-right-color: var(--text-primary); }
  50% { border-right-color: transparent; }
}

@keyframes glitch1 {
  0%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
  20% { clip-path: inset(20% 0 60% 0); transform: translate(-3px, 2px); }
  40% { clip-path: inset(40% 0 30% 0); transform: translate(3px, -1px); }
  60% { clip-path: inset(60% 0 10% 0); transform: translate(-2px, 1px); }
  80% { clip-path: inset(10% 0 70% 0); transform: translate(2px, -2px); }
}

@keyframes glitch2 {
  0%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
  20% { clip-path: inset(60% 0 10% 0); transform: translate(3px, -2px); }
  40% { clip-path: inset(10% 0 60% 0); transform: translate(-3px, 1px); }
  60% { clip-path: inset(30% 0 40% 0); transform: translate(2px, -1px); }
  80% { clip-path: inset(70% 0 5% 0); transform: translate(-2px, 2px); }
}

@keyframes neonFlicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    text-shadow: 0 0 7px #fff, 0 0 10px #fff, 0 0 21px #fff, 0 0 42px var(--accent-blue), 0 0 82px var(--accent-blue);
    opacity: 1;
  }
  20%, 24%, 55% {
    text-shadow: none;
    opacity: 0.8;
  }
}

/* ===== Hover Effect Classes ===== */

.hover-scale {
  transition: transform var(--transition-normal);
}
.hover-scale:hover {
  transform: scale(1.1);
}

.hover-shadow-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.hover-shadow-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(91, 155, 213, 0.3);
}

.hover-color-shift {
  transition: background-color var(--transition-normal), color var(--transition-normal);
}
.hover-color-shift:hover {
  background-color: var(--accent-coral);
}

/* ===== Loading Spinner Utility Classes ===== */

.spinner-rotate {
  animation: spin 1s linear infinite;
}

.spinner-pulse {
  animation: pulse 1.2s ease-in-out infinite;
}

.bounce-dot {
  animation: bounce 0.6s ease-in-out infinite;
}
.bounce-dot:nth-child(2) { animation-delay: 0.1s; }
.bounce-dot:nth-child(3) { animation-delay: 0.2s; }

/* ===== Hidden state for IntersectionObserver ===== */

.effect-hidden {
  opacity: 0;
  transform: translateY(20px);
}

.effect-visible {
  animation: fadeInUp 0.5s ease forwards;
}