/**
 * Modern Animations & Transitions
 * Smooth animations, hover effects, and loading states
 */

/* ==========================================================================
   Global Transition Settings
   ========================================================================== */

* {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Keyframe Animations
   ========================================================================== */

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

.fade-in-down {
    animation: fadeInDown 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn 0.4s ease-out;
}

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

.pulse {
    animation: pulse 2s infinite;
}

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

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

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

.bounce {
    animation: bounce 1s infinite;
}

@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;
}

/* ==========================================================================
   Hover Effects
   ========================================================================== */

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

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15),
                0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.hover-grow {
    transition: transform 0.3s ease;
}

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

.hover-shrink {
    transition: transform 0.3s ease;
}

.hover-shrink:hover {
    transform: scale(0.95);
}

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

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.4);
}

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

.hover-shadow:hover {
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.2);
}

.hover-rotate {
    transition: transform 0.3s ease;
}

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

.hover-brightness {
    transition: filter 0.3s ease;
}

.hover-brightness:hover {
    filter: brightness(1.1);
}

/* Image hover effects */
.image-hover {
    position: relative;
    overflow: hidden;
}

.image-hover img {
    transition: transform 0.5s ease;
}

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

.image-hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-hover:hover .image-hover-overlay {
    opacity: 1;
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(79, 70, 229, 0.2);
    border-top-color: var(--primary-color, #4F46E5);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.loading-spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

.loading-dots {
    display: inline-flex;
    gap: 4px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color, #4F46E5);
    animation: pulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

.loading-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, #4F46E5, #7C3AED, #EC4899);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 99999;
}

.loading-bar.active {
    animation: loading-bar 2s ease-in-out infinite;
}

@keyframes loading-bar {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

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

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 200px;
    border-radius: 12px;
}

/* ==========================================================================
   Ripple Effect
   ========================================================================== */

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

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger animations */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }

.stagger-item.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Progress Animations
   ========================================================================== */

.progress-bar-animated {
    position: relative;
    overflow: hidden;
}

.progress-bar-animated::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ==========================================================================
   Transition Utilities
   ========================================================================== */

.transition-all {
    transition: all 0.3s ease;
}

.transition-fast {
    transition-duration: 0.15s;
}

.transition-slow {
    transition-duration: 0.5s;
}

.transition-colors {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.transition-transform {
    transition: transform 0.3s ease;
}

.transition-opacity {
    transition: opacity 0.3s ease;
}

/* ==========================================================================
   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;
    }
    
    .loading-spinner,
    .spin,
    .pulse,
    .bounce {
        animation: none;
    }
}

/* ==========================================================================
   Image Loading Effect
   ========================================================================== */

.image-loading {
    position: relative;
    background: #f3f4f6;
}

.image-loading img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.image-loading img.loaded {
    opacity: 1;
}

/* ==========================================================================
   Toast Animation
   ========================================================================== */

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

.toast {
    animation: toast-in 0.3s ease-out;
}

/* ==========================================================================
   Modal Animations
   ========================================================================== */

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

@keyframes modal-slide-up {
    from {
        transform: translateY(50px);
    }
    to {
        transform: translateY(0);
    }
}

.modal.show {
    animation: modal-fade-in 0.3s ease;
}

.modal.show .modal-dialog {
    animation: modal-slide-up 0.3s ease;
}

/* ==========================================================================
   Dropdown Animations
   ========================================================================== */

@keyframes dropdown-fade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-menu.show {
    animation: dropdown-fade 0.2s ease;
}

/* ==========================================================================
   Parallax Effects
   ========================================================================== */

.parallax {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* ==========================================================================
   Counter Animation
   ========================================================================== */

.counter {
    font-variant-numeric: tabular-nums;
    transition: all 0.3s ease;
}

/* ==========================================================================
   Background Animations
   ========================================================================== */

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

.animated-gradient {
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
}

/* ==========================================================================
   Button Click Effect
   ========================================================================== */

.btn-click-effect {
    transition: transform 0.1s ease;
}

.btn-click-effect:active {
    transform: scale(0.95);
}

/* ==========================================================================
   Floating Animation
   ========================================================================== */

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* ==========================================================================
   Delay Utilities
   ========================================================================== */

.delay-100 { animation-delay: 0.1s; transition-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; transition-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; transition-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; transition-delay: 0.5s; }