/**
 * IN-CONTRO 2.0 Animations
 *
 * Animazioni sottili e funzionali con rispetto per prefers-reduced-motion
 */

/* ============================================
   SCROLL-TRIGGERED ANIMATIONS
   ============================================ */

/* Base state for animated elements */
.animate-fade-up,
.animate-fade-down,
.animate-fade-left,
.animate-fade-right,
.animate-scale,
.animate-blur {
  opacity: 0;
  transition:
    opacity var(--duration-700) var(--ease-smooth),
    transform var(--duration-700) var(--ease-smooth),
    filter var(--duration-700) var(--ease-smooth);
}

.animate-fade-up {
  transform: translateY(30px);
}

.animate-fade-down {
  transform: translateY(-30px);
}

.animate-fade-left {
  transform: translateX(30px);
}

.animate-fade-right {
  transform: translateX(-30px);
}

.animate-scale {
  transform: scale(0.95);
}

.animate-blur {
  filter: blur(8px);
  transform: translateY(20px);
}

/* Animated state */
.animate-fade-up.is-visible,
.animate-fade-down.is-visible,
.animate-fade-left.is-visible,
.animate-fade-right.is-visible,
.animate-scale.is-visible,
.animate-blur.is-visible {
  opacity: 1;
  transform: translate(0, 0) scale(1);
  filter: blur(0);
}

/* Animation Delays */
.animate-delay-100 { transition-delay: 100ms; }
.animate-delay-200 { transition-delay: 200ms; }
.animate-delay-300 { transition-delay: 300ms; }
.animate-delay-400 { transition-delay: 400ms; }
.animate-delay-500 { transition-delay: 500ms; }
.animate-delay-600 { transition-delay: 600ms; }

/* Staggered children animations */
.animate-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-500) var(--ease-smooth),
    transform var(--duration-500) var(--ease-smooth);
}

.animate-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.animate-stagger.is-visible > *:nth-child(2) { transition-delay: 100ms; }
.animate-stagger.is-visible > *:nth-child(3) { transition-delay: 200ms; }
.animate-stagger.is-visible > *:nth-child(4) { transition-delay: 300ms; }
.animate-stagger.is-visible > *:nth-child(5) { transition-delay: 400ms; }
.animate-stagger.is-visible > *:nth-child(6) { transition-delay: 500ms; }
.animate-stagger.is-visible > *:nth-child(7) { transition-delay: 600ms; }
.animate-stagger.is-visible > *:nth-child(8) { transition-delay: 700ms; }

.animate-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HOVER ANIMATIONS
   ============================================ */

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

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

/* Scale effect */
.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* Glow effect */
.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(27, 67, 50, 0.15);
}

/* Image zoom */
.hover-zoom {
  overflow: hidden;
}

.hover-zoom img {
  transition: transform var(--duration-500) var(--ease-smooth);
}

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

/* ============================================
   MICRO-INTERACTIONS
   ============================================ */

/* Button press effect */
.btn:active {
  transform: scale(0.98);
}

/* Link underline animation */
.link-underline {
  position: relative;
  display: inline-block;
}

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

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

/* Icon rotation */
.icon-rotate {
  transition: transform var(--transition-base);
}

.icon-rotate:hover {
  transform: rotate(15deg);
}

/* ============================================
   LOADING STATES
   ============================================ */

/* Skeleton loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 0%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

/* Pulse */
.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Bounce */
.animate-bounce {
  animation: bounce 1s infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(-5%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }
  50% {
    transform: translateY(0);
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

/* Fade page in on load */
.page-wrapper {
  animation: page-fade-in var(--duration-500) var(--ease-smooth);
}

@keyframes page-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ============================================
   COUNTER ANIMATION
   ============================================ */

.counter {
  font-variant-numeric: tabular-nums;
}

/* ============================================
   FORM ANIMATIONS
   ============================================ */

/* Input focus animation */
.form-input,
.form-select,
.form-textarea {
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

/* Form success/error shake */
.form-shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Alert slide in */
.alert {
  animation: slide-in-top var(--duration-300) var(--ease-smooth);
}

@keyframes slide-in-top {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   MENU ANIMATIONS
   ============================================ */

/* Hamburger to X animation */
.header__toggle-icon line {
  transition: all var(--transition-base);
  transform-origin: center;
}

.header__toggle[aria-expanded="true"] .header__toggle-icon line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.header__toggle[aria-expanded="true"] .header__toggle-icon line:nth-child(2) {
  opacity: 0;
}

.header__toggle[aria-expanded="true"] .header__toggle-icon line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile menu slide */
.nav {
  transition:
    transform var(--duration-300) var(--ease-smooth),
    opacity var(--duration-300) var(--ease-smooth),
    visibility var(--duration-300);
}

/* ============================================
   SCROLL INDICATOR
   ============================================ */

.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-brand), var(--color-primary-400));
  transform-origin: left;
  transform: scaleX(0);
  z-index: var(--z-max);
  transition: transform 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;
  }

  .animate-fade-up,
  .animate-fade-down,
  .animate-fade-left,
  .animate-fade-right,
  .animate-scale,
  .animate-blur,
  .animate-stagger > * {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .hover-lift:hover,
  .hover-scale:hover,
  .hover-zoom:hover img {
    transform: none;
  }

  .hero__blob {
    animation: none;
  }

  .page-wrapper {
    animation: none;
  }

  .skeleton {
    animation: none;
  }

  .animate-pulse,
  .animate-bounce {
    animation: none;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  * {
    animation: none !important;
    transition: none !important;
  }

  .animate-fade-up,
  .animate-fade-down,
  .animate-fade-left,
  .animate-fade-right,
  .animate-scale,
  .animate-blur {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}