/* 애니메이션 효과 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideIn {
  from { transform: translateX(-20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

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

/* 애니메이션 적용 클래스 */
.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.slide-up {
  animation: slideUp 0.5s ease forwards;
}

.slide-in {
  animation: slideIn 0.5s ease forwards;
}

.bounce {
  animation: bounce 1s ease infinite;
}

.pulse {
  animation: pulse 2s infinite;
}

/* 요소별 애니메이션 지연 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* 호버 효과 */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.hover-glow {
  transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 15px rgba(249, 224, 0, 0.5);
}

/* 특수 효과 */
.shimmer-bg {
  background: linear-gradient(90deg, 
    rgba(255,255,255,0), 
    rgba(255,255,255,0.5), 
    rgba(255,255,255,0));
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

.reveal-border {
  position: relative;
}

.reveal-border::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.reveal-border:hover::after {
  width: 100%;
}