/* ================================
   Animations & Transitions
   ================================ */

/* Fade In Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

/* Scale Animation */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Gradient Animation */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

/* Pulse Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Shimmer Animation */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Rotate Animation */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ================================
   Animation Classes
   ================================ */

.animate-on-scroll {
  opacity: 0;
  transition: all 0.6s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-down {
  animation: fadeInDown 0.6s ease-out forwards;
}

.fade-in-left {
  animation: fadeInLeft 0.6s ease-out forwards;
}

.fade-in-right {
  animation: fadeInRight 0.6s ease-out forwards;
}

.scale-in {
  animation: scaleIn 0.6s ease-out forwards;
}

/* Stagger Animation Delays */
.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

.stagger-5 {
  animation-delay: 0.5s;
}

.stagger-6 {
  animation-delay: 0.6s;
}

/* Hover Effects */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(18, 158, 217, 0.3);
}

/* Background Animations */
.gradient-animated {
  background: linear-gradient(270deg, #129ed9, #a474eb, #129ed9);
  background-size: 400% 400%;
  animation: gradientShift 8s ease infinite;
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

@media (max-width: 768px) {
  .float-animation {
    position: static !important;
    top: auto !important;
    right: auto !important;
    bottom: auto !important;
    left: auto !important;
    transform: none !important;
    width: 100%;
    max-width: 100%;
    margin: 0.75rem 0 0;
    box-sizing: border-box;
    animation: none !important;
  }

  .pulse-animation,
  .gradient-animated {
    animation: none !important;
  }

  body {
    animation: none !important;
  }
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: shimmer 2s infinite;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-gradient);
  z-index: 9999;
  transform-origin: left;
  transition: transform 0.1s ease-out;
}

/* Smooth Transitions */
.transition-all {
  transition: all var(--transition-base);
}

.transition-colors {
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}

.transition-opacity {
  transition: opacity var(--transition-base);
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .float-animation,
  .pulse-animation,
  .gradient-animated {
    animation: none !important;
  }
}

/* Page Load Animation */
body {
  animation: fadeIn 0.5s ease-out;
}

/* Link Underline Animation */
.link-animated {
  position: relative;
  text-decoration: none;
}

.link-animated::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gradient);
  transition: width var(--transition-base);
}

.link-animated:hover::after {
  width: 100%;
}

/* Button Press Animation */
.btn-press {
  position: relative;
  transition: transform 0.1s ease;
}

.btn-press:active {
  transform: scale(0.98);
}

/* Card Tilt Effect (Subtle) */
.card-tilt {
  transition: transform var(--transition-base);
}

.card-tilt:hover {
  transform: perspective(1000px) rotateX(2deg) rotateY(-2deg);
}