/* ========================================
   AL RAHMAN TRAVEL - FRONTEND ANIMATIONS CSS
   Transitions, Animations & Motion
   ======================================== */

/* ===== 1. FADE IN ANIMATIONS ===== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@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);
  }
}

/* Animation classes for use with JavaScript */
.fade-in {
  animation: fadeIn 0.6s ease-in-out;
}

.fade-in-up {
  animation: fadeInUp 0.7s ease-out;
}

.fade-in-down {
  animation: fadeInDown 0.7s ease-out;
}

.fade-in-left {
  animation: fadeInLeft 0.7s ease-out;
}

.fade-in-right {
  animation: fadeInRight 0.7s ease-out;
}

/* Intersection Observer classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll-left.animated {
  opacity: 1;
  transform: translateX(0);
}

.animate-on-scroll-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll-right.animated {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger animation delays */
.animate-delay-1 { animation-delay: 0.1s; transition-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; transition-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; transition-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; transition-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; transition-delay: 0.5s; }

/* ===== 2. SCALE & ZOOM ANIMATIONS ===== */

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes zoomInSubtle {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.zoom-in {
  animation: zoomIn 0.5s ease-out;
}

.zoom-in-subtle {
  animation: zoomInSubtle 0.4s ease-out;
}

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

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

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

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

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

.hover-scale-lg:hover {
  transform: scale(1.1);
}

/* ===== 3. SLIDE ANIMATIONS ===== */

@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.slide-in-up {
  animation: slideInUp 0.6s ease-out;
}

.slide-in-down {
  animation: slideInDown 0.6s ease-out;
}

/* ===== 4. ROTATE & SPIN ANIMATIONS ===== */

@keyframes rotate360 {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-180deg) scale(0.5);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}

.rotate-in {
  animation: rotateIn 0.7s ease-out;
}

.spin {
  animation: rotate360 1s linear infinite;
}

/* Hover rotate */
.hover-rotate {
  transition: transform var(--transition-base);
}

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

/* ===== 5. BOUNCE & PULSE ANIMATIONS ===== */

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-15px);
  }
  60% {
    transform: translateY(-7px);
  }
}

@keyframes bounceGentle {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

@keyframes pulseSubtle {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

.bounce {
  animation: bounce 2s infinite;
}

.bounce-gentle {
  animation: bounceGentle 2s ease-in-out infinite;
}

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

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

/* ===== 6. CARD HOVER TRANSITIONS ===== */

.card-hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover-lift:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.card-hover-lift-sm {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover-lift-sm:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

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

.card-image-zoom img {
  transition: transform var(--transition-slow);
}

.card-image-zoom:hover img {
  transform: scale(1.15);
}

/* ===== 7. BUTTON ANIMATIONS ===== */

/* Ripple effect */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  pointer-events: none;
}

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

/* Button hover effects */
.btn-hover-slide {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-hover-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.15);
  transition: left var(--transition-base);
  z-index: -1;
}

.btn-hover-slide:hover::before {
  left: 100%;
}

/* Button glow effect */
@keyframes buttonGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(229, 151, 86, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(229, 151, 86, 0.6);
  }
}

.btn-glow {
  animation: buttonGlow 2s ease-in-out infinite;
}

/* ===== 8. LOADING ANIMATIONS ===== */

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

@keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}

.loading-spinner {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-tertiary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-spinner-lg {
  width: 50px;
  height: 50px;
  border-width: 4px;
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(1) infinite;
}

/* ===== 9. SHIMMER / SKELETON LOADING ===== */

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border) 0%,
    var(--color-light-bg) 50%,
    var(--color-border) 100%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

.skeleton-text {
  height: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.skeleton-title {
  height: 24px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  width: 60%;
}

.skeleton-image {
  height: 200px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

/* ===== 10. NAVBAR SCROLL ANIMATIONS ===== */

.navbar-scroll-hidden {
  transform: translateY(-100%);
  transition: transform var(--transition-base);
}

.navbar-scroll-visible {
  transform: translateY(0);
  transition: transform var(--transition-base);
}

/* Sticky header animation */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.sticky-header.scrolled {
  box-shadow: var(--shadow-lg);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
}

/* ===== 11. UNDERLINE ANIMATIONS ===== */

.animated-underline {
  position: relative;
  display: inline-block;
}

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

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

.animated-underline-center::after {
  left: 50%;
  transform: translateX(-50%);
}

/* ===== 12. GRADIENT ANIMATIONS ===== */

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

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 5s ease infinite;
}

/* ===== 13. FLOATING ANIMATIONS ===== */

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes floatSubtle {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-7px);
  }
}

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

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

/* ===== 14. SHAKE ANIMATION (for errors) ===== */

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

.shake {
  animation: shake 0.5s ease-in-out;
}

/* ===== 15. ICON ANIMATIONS ===== */

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

.icon-hover-bounce:hover {
  animation: bounceGentle 0.6s ease-in-out;
}

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

.icon-hover-rotate:hover {
  transform: rotate(360deg);
}

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

.icon-hover-scale:hover {
  transform: scale(1.2);
}

/* ===== 16. PAGE TRANSITION ===== */

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

.page-load-animation {
  animation: pageLoad 0.5s ease-out;
}

/* ===== 17. ACCESSIBILITY - REDUCED MOTION ===== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .animate-on-scroll,
  .animate-on-scroll-left,
  .animate-on-scroll-right {
    opacity: 1;
    transform: none;
  }
}