/* ================================================
   ANIMATION STYLES
   ================================================ */

/* Scroll Animation Classes */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-left"] {
  transform: translateX(-50px);
}

[data-animate="fade-left"].animated {
  transform: translateX(0);
}

[data-animate="fade-right"] {
  transform: translateX(50px);
}

[data-animate="fade-right"].animated {
  transform: translateX(0);
}

[data-animate="scale"] {
  transform: scale(0.9);
}

[data-animate="scale"].animated {
  transform: scale(1);
}

/* Animation Delays */
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }
[data-delay="400"] { transition-delay: 400ms; }
[data-delay="500"] { transition-delay: 500ms; }
[data-delay="600"] { transition-delay: 600ms; }

/* Stagger Animation for Grid Items */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-item.animated {
  animation: fadeInUp 0.5s ease forwards;
}

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

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.hover-scale {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

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

/* Gradient Border Animation */
.gradient-border {
  position: relative;
  background: var(--white);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gradient-border:hover::before {
  opacity: 1;
}

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

.animate-gradient-text {
  background: linear-gradient(90deg, var(--purple-500), var(--pink-500), var(--purple-500));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientText 3s ease infinite;
}

/* Button Ripple Effect */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--gray-200) 25%,
    var(--gray-100) 50%,
    var(--gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

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

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-title {
  height: 2em;
  width: 60%;
  margin-bottom: 1em;
}

.skeleton-image {
  width: 100%;
  height: 200px;
}

/* Page Transition */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--purple-900);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-transition.hidden {
  opacity: 0;
  visibility: hidden;
}

.page-transition-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Notification Toast */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: var(--space-4) var(--space-6);
  background: var(--gray-900);
  color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: translateX(120%);
  transition: transform 0.3s ease;
  z-index: var(--z-tooltip);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--error);
}

/* Modal Animation */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

/* Progress Bar Animation */
.progress-bar {
  height: 4px;
  background: var(--gray-200);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Cursor Animation */
.cursor {
  width: 20px;
  height: 20px;
  border: 2px solid var(--pink-500);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease, border-color 0.2s ease;
  mix-blend-mode: difference;
}

.cursor.hover {
  transform: scale(1.5);
  border-color: var(--purple-500);
}

/* Reveal on Scroll Image */
.reveal-image {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.reveal-image img {
  transform: scale(1.2);
  transition: transform 1.5s ease;
}

.reveal-image.animated img {
  transform: scale(1);
}

/* Parallax Effect */
.parallax {
  will-change: transform;
}

/* Magnetic Button Effect */
.magnetic-btn {
  transition: transform 0.2s ease;
}

/* Typing Animation */
.typing-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--pink-500);
  margin-left: 2px;
  animation: blink 0.7s infinite;
}

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

/* Pulse Ring Animation */
.pulse-ring {
  position: relative;
}

.pulse-ring::before,
.pulse-ring::after {
  content: '';
  position: absolute;
  inset: -10px;
  border: 2px solid var(--pink-500);
  border-radius: 50%;
  animation: pulse-ring 2s ease-out infinite;
}

.pulse-ring::after {
  animation-delay: 1s;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

/* Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  z-index: var(--z-fixed);
  transition: width 0.1s linear;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}