/* Animation enhancements for Timetable App */

/* Base Animation Variables */
:root {
  --transition-speed: 0.3s;
  --transition-function: cubic-bezier(0.4, 0, 0.2, 1);
  --animation-duration: 0.6s;
}

/* Page Transitions */
.fade-enter {
  opacity: 0;
  transform: translateY(10px);
}

.fade-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-speed) var(--transition-function),
              transform var(--transition-speed) var(--transition-function);
}

.slide-in-right {
  animation: slideInRight var(--animation-duration) var(--transition-function);
}

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

.slide-in-left {
  animation: slideInLeft var(--animation-duration) var(--transition-function);
}

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

.slide-up {
  animation: slideUp var(--animation-duration) var(--transition-function);
}

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

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

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.hover-grow {
  transition: transform var(--transition-speed) var(--transition-function);
}

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

/* Button Animation Enhancements */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%, -50%);
  transform-origin: 50% 50%;
}

.btn:active::after {
  animation: ripple 0.6s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  20% {
    transform: scale(25, 25);
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: scale(40, 40);
  }
}

/* Task Card Animations */
.task-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.task-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 8px 30px var(--shadow-color);
}

.task-card.completed {
  animation: taskComplete 0.5s forwards;
}

@keyframes taskComplete {
  0% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-10px) scale(1.05);
  }
  100% {
    transform: translateY(0) scale(1);
    background-color: rgba(var(--success-color-rgb), 0.1);
  }
}

/* Loading Indicators */
.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(var(--accent-color-rgb), 0.3);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-pulse {
  display: inline-block;
  width: 24px;
  height: 24px;
  background-color: var(--accent-color);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(var(--border-color-rgb), 0.1) 25%,
    rgba(var(--border-color-rgb), 0.2) 37%,
    rgba(var(--border-color-rgb), 0.1) 63%
  );
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

.skeleton-text {
  height: 16px;
  margin-bottom: 10px;
  border-radius: 4px;
}

.skeleton-card {
  height: 200px;
  border-radius: 16px;
}

/* Progress Bar Animation */
.progress-bar {
  position: relative;
  height: 8px;
  background-color: rgba(var(--border-color-rgb), 0.3);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--accent-color);
  border-radius: 4px;
  position: absolute;
  top: 0;
  left: 0;
  transition: width 1s ease-in-out;
}

.progress-bar-fill.animate {
  animation: progress-fill 1.2s ease-in-out;
}

@keyframes progress-fill {
  0% { width: 0%; }
  100% { width: var(--percentage); }
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  background-color: var(--card-bg);
  border-left: 4px solid var(--accent-color);
  border-radius: 4px;
  box-shadow: 0 4px 15px var(--shadow-color);
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
}

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

.toast.success {
  border-left-color: var(--success-color);
}

.toast.error {
  border-left-color: var(--error-color);
}

.toast.warning {
  border-left-color: var(--warning-color);
}

/* Mobile Navigation Animations */
.mobile-menu-toggle {
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  display: none;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
    z-index: 1010;
    margin-right: 5px;
  }
  
  .navbar {
    flex-wrap: wrap;
    justify-content: space-between;
  }
  
  .navbar-nav {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 16px);
    max-height: 0;
    background-color: var(--bg-secondary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    z-index: 1009;
    opacity: 0;
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease-in-out;
    visibility: hidden;
  }
  
  /* Glass texture for mobile nav */
  .navbar-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
      linear-gradient(125deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 40%, rgba(255,255,255,0) 100%),
      radial-gradient(circle at 20% 80%, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
    z-index: -1;
    border-radius: inherit;
  }
  
  [data-theme="dark"] .navbar-nav::before {
    background: 
      linear-gradient(125deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 40%, rgba(255,255,255,0) 100%),
      radial-gradient(circle at 20% 80%, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 100%);
  }
  
  .navbar-nav.open {
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 15px;
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    position: absolute;
    left: 0;
    border-radius: 3px;
    transition: all 0.3s ease;
  }
  
  .mobile-menu-toggle .bar:nth-child(1) {
    top: 0;
  }
  
  .mobile-menu-toggle .bar:nth-child(2) {
    top: 10px;
  }
  
  .mobile-menu-toggle .bar:nth-child(3) {
    top: 20px;
  }
  
  .mobile-menu-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg);
    top: 10px;
  }
  
  .mobile-menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg);
    top: 10px;
  }
}

/* Accordion Animation */
.accordion-item {
  border-bottom: 1px solid var(--border-color);
}

.accordion-header {
  padding: 15px;
  cursor: pointer;
  position: relative;
  transition: background-color 0.3s ease;
}

.accordion-header:hover {
  background-color: rgba(var(--accent-color-rgb), 0.05);
}

.accordion-header::after {
  content: '+';
  position: absolute;
  right: 15px;
  transition: transform 0.3s ease;
}

.accordion-item.open .accordion-header::after {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-item.open .accordion-content {
  max-height: 500px; /* Arbitrary large value */
}

/* Modal Animations */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.modal-content {
  position: relative;
  background-color: var(--card-bg);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  z-index: 2001;
  opacity: 0;
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  opacity: 1;
  transform: scale(1);
}

/* Add animation classes with staggered timing */
.stagger-fade-in > * {
  opacity: 0;
  transform: translateY(20px);
  animation: staggerFadeIn 0.5s ease forwards;
}

.stagger-fade-in > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-fade-in > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-fade-in > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-fade-in > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-fade-in > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-fade-in > *:nth-child(6) { animation-delay: 0.6s; }
.stagger-fade-in > *:nth-child(7) { animation-delay: 0.7s; }
.stagger-fade-in > *:nth-child(8) { animation-delay: 0.8s; }

@keyframes staggerFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Background subtle animation */
.animated-bg {
  position: relative;
  overflow: hidden;
}

.animated-bg::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at center,
    rgba(var(--accent-color-rgb), 0.1) 0%,
    rgba(var(--accent-color-rgb), 0) 50%
  );
  animation: rotateBg 120s linear infinite;
  z-index: -1;
}

@keyframes rotateBg {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Removed the glass-shimmer animation to keep texture static */

/* Floating navbar animation */
.navbar {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% {
    transform: translateY(0px);
    box-shadow: 0 8px 32px var(--shadow-color);
  }
  50% {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-color);
  }
  100% {
    transform: translateY(0px);
    box-shadow: 0 8px 32px var(--shadow-color);
  }
}

/* Glass texture noise effect */
.glass-noise {
  position: relative;
}

.glass-noise::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 800 800' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.5' numOctaves='6' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.04;
  pointer-events: none;
  z-index: 1;
  border-radius: inherit;
}

[data-theme="dark"] .glass-noise::before {
  opacity: 0.06;
}