/**
 * Micro-interactions and Animations
 * Enhances user experience with smooth transitions and feedback
 */

/* Shake animation for validation errors */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Fade in animation */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Slide up animation */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Pulse animation for loading */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Skeleton loading animation */
@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

/* Success checkmark animation */
@keyframes checkmark {
  0% {
    stroke-dashoffset: 100;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

/* Scale in animation */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===== Card Hover Effects ===== */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card.lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}

/* ===== Button Interactions ===== */
.btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

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

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
  transform: translateY(0);
}

/* Loading button state */
.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

/* ===== Form Input Interactions ===== */
.form-control,
.form-select {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
  transform: scale(1.01);
}

.form-control.is-invalid {
  animation: shake 0.3s;
}

.form-control.is-valid {
  border-color: #10b981;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2310b981' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

/* ===== Alert Animations ===== */
.alert {
  animation: slideUp 0.3s ease;
}

.alert.fade.show {
  animation: fadeIn 0.3s ease;
}

/* ===== Progress Indicator ===== */
.progress-step {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #e5e7eb;
  color: #6b7280;
  font-weight: 600;
  transition: all 0.3s ease;
}

.progress-step.active {
  background: #3b82f6;
  color: white;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
  animation: scaleIn 0.3s ease;
}

.progress-step.completed {
  background: #10b981;
  color: white;
}

.progress-step.completed::after {
  content: '✓';
  position: absolute;
  font-size: 20px;
}

.progress-line {
  flex: 1;
  height: 2px;
  background: #e5e7eb;
  transition: background 0.3s ease;
}

.progress-line.completed {
  background: #10b981;
}

/* ===== Skeleton Loading ===== */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
  border-radius: 4px;
}

.skeleton-header {
  height: 80px;
  margin-bottom: 1rem;
}

.skeleton-text {
  height: 16px;
  margin-bottom: 0.5rem;
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-card {
  height: 200px;
  margin-bottom: 1rem;
}

/* ===== Link Hover Effects ===== */
a {
  transition: color 0.2s ease;
}

.nav-link {
  position: relative;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: currentColor;
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

/* ===== Icon Animations ===== */
.icon-hover {
  transition: transform 0.3s ease;
}

.icon-hover:hover {
  transform: scale(1.1) rotate(5deg);
}

/* ===== Badge Pulse ===== */
.badge-pulse {
  animation: pulse 2s infinite;
}

/* ===== Dropdown Animations ===== */
.dropdown-menu {
  animation: fadeIn 0.2s ease;
}

/* ===== Modal Animations ===== */
.modal.fade .modal-dialog {
  transition: transform 0.3s ease-out;
  transform: scale(0.9);
}

.modal.show .modal-dialog {
  transform: scale(1);
}

/* ===== Toast Notifications ===== */
.toast {
  animation: slideUp 0.3s ease;
}

/* ===== Spinner Variations ===== */
.spinner-grow-sm {
  width: 1rem;
  height: 1rem;
}

/* ===== Success Animation ===== */
.success-checkmark {
  width: 80px;
  height: 80px;
  margin: 0 auto;
}

.success-checkmark .check-icon {
  width: 80px;
  height: 80px;
  position: relative;
  border-radius: 50%;
  box-sizing: content-box;
  border: 4px solid #10b981;
}

.success-checkmark .check-icon::before {
  top: 3px;
  left: -2px;
  width: 30px;
  transform-origin: 100% 50%;
  border-radius: 100px 0 0 100px;
}

.success-checkmark .check-icon::after {
  top: 0;
  left: 30px;
  width: 60px;
  transform-origin: 0 50%;
  border-radius: 0 100px 100px 0;
  animation: rotate-circle 4.25s ease-in;
}

.success-checkmark .check-icon .icon-line {
  height: 5px;
  background-color: #10b981;
  display: block;
  border-radius: 2px;
  position: absolute;
  z-index: 10;
}

.success-checkmark .check-icon .icon-line.line-tip {
  top: 46px;
  left: 14px;
  width: 25px;
  transform: rotate(45deg);
  animation: icon-line-tip 0.75s;
}

.success-checkmark .check-icon .icon-line.line-long {
  top: 38px;
  right: 8px;
  width: 47px;
  transform: rotate(-45deg);
  animation: icon-line-long 0.75s;
}

@keyframes icon-line-tip {
  0% {
    width: 0;
    left: 1px;
    top: 19px;
  }
  54% {
    width: 0;
    left: 1px;
    top: 19px;
  }
  70% {
    width: 50px;
    left: -8px;
    top: 37px;
  }
  84% {
    width: 17px;
    left: 21px;
    top: 48px;
  }
  100% {
    width: 25px;
    left: 14px;
    top: 45px;
  }
}

@keyframes icon-line-long {
  0% {
    width: 0;
    right: 46px;
    top: 54px;
  }
  65% {
    width: 0;
    right: 46px;
    top: 54px;
  }
  84% {
    width: 55px;
    right: 0px;
    top: 35px;
  }
  100% {
    width: 47px;
    right: 8px;
    top: 38px;
  }
}

/* ===== Fade In on Scroll ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
  .card.lift:hover {
    transform: none;
  }
  
  .btn:hover {
    transform: none;
  }
}

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