/**
 * ANIMATIONS & TRANSITIONS LIBRARY
 * Comprehensive animation system
 * Version 2.0.0
 *
 * Features:
 * - Smooth transitions
 * - Micro-interactions
 * - Loading animations
 * - Enter/exit animations
 * - Hover effects
 * - Reduced motion support
 */

/* ========================================
   KEYFRAME ANIMATIONS
   ======================================== */

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

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

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

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

/* Slide animations */
@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

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

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

/* Rotate & Spin */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

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

/* Shimmer effect for loading */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

/* Progress bar animation */
@keyframes progressBar {
    from {
        transform: scaleX(0);
        transform-origin: left;
    }
    to {
        transform: scaleX(1);
        transform-origin: left;
    }
}

/* Glow effect */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--brand-gold-900),
                    0 0 10px var(--brand-gold-900);
    }
    50% {
        box-shadow: 0 0 20px var(--brand-gold-900),
                    0 0 30px var(--brand-gold-900),
                    0 0 40px var(--brand-gold-900);
    }
}

/* Ripple effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* Float animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Wiggle */
@keyframes wiggle {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(-3deg);
    }
    75% {
        transform: rotate(3deg);
    }
}

/* ========================================
   UTILITY ANIMATION CLASSES
   ======================================== */

/* Fade utilities */
.animate-fade-in {
    animation: fadeIn var(--duration-base) var(--ease-out);
}

.animate-fade-out {
    animation: fadeOut var(--duration-base) var(--ease-in);
}

.animate-fade-in-up {
    animation: fadeInUp var(--duration-slow) var(--ease-out);
}

.animate-fade-in-down {
    animation: fadeInDown var(--duration-slow) var(--ease-out);
}

.animate-fade-in-left {
    animation: fadeInLeft var(--duration-slow) var(--ease-out);
}

.animate-fade-in-right {
    animation: fadeInRight var(--duration-slow) var(--ease-out);
}

/* Scale utilities */
.animate-scale-in {
    animation: scaleIn var(--duration-base) var(--ease-out);
}

.animate-scale-out {
    animation: scaleOut var(--duration-base) var(--ease-in);
}

/* Slide utilities */
.animate-slide-in-up {
    animation: slideInUp var(--duration-slow) var(--ease-out);
}

.animate-slide-in-down {
    animation: slideInDown var(--duration-slow) var(--ease-out);
}

.animate-slide-in-left {
    animation: slideInLeft var(--duration-slow) var(--ease-out);
}

.animate-slide-in-right {
    animation: slideInRight var(--duration-slow) var(--ease-out);
}

/* Spin utilities */
.animate-spin {
    animation: spin var(--duration-slowest) linear infinite;
}

.animate-spin-slow {
    animation: spin 2s linear infinite;
}

.animate-spin-fast {
    animation: spin 0.5s linear infinite;
}

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

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

.animate-shake {
    animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

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

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

/* ========================================
   ANIMATION DELAYS
   ======================================== */

.delay-75 { animation-delay: 75ms; }
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-500 { animation-delay: 500ms; }
.delay-700 { animation-delay: 700ms; }
.delay-1000 { animation-delay: 1000ms; }

/* ========================================
   ANIMATION DURATIONS
   ======================================== */

.duration-75 { animation-duration: 75ms; }
.duration-100 { animation-duration: 100ms; }
.duration-150 { animation-duration: 150ms; }
.duration-200 { animation-duration: 200ms; }
.duration-300 { animation-duration: 300ms; }
.duration-500 { animation-duration: 500ms; }
.duration-700 { animation-duration: 700ms; }
.duration-1000 { animation-duration: 1000ms; }

/* ========================================
   TRANSITION UTILITIES
   ======================================== */

.transition-none {
    transition: none;
}

.transition-all {
    transition: all var(--duration-base) var(--ease-out);
}

.transition-colors {
    transition: var(--transition-colors);
}

.transition-opacity {
    transition: var(--transition-opacity);
}

.transition-transform {
    transition: var(--transition-transform);
}

.transition-fast {
    transition-duration: var(--duration-fast);
}

.transition-base {
    transition-duration: var(--duration-base);
}

.transition-slow {
    transition-duration: var(--duration-slow);
}

/* ========================================
   HOVER EFFECTS
   ======================================== */

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

.hover-lift:hover {
    transform: translateY(-4px);
}

/* Grow effect */
.hover-grow {
    transition: var(--transition-transform);
}

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

/* Shrink effect */
.hover-shrink {
    transition: var(--transition-transform);
}

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

/* Glow on hover */
.hover-glow {
    transition: box-shadow var(--duration-base) var(--ease-out);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(255, 184, 28, 0.5),
                0 0 30px rgba(255, 184, 28, 0.3);
}

/* Shadow lift */
.hover-shadow {
    transition: box-shadow var(--duration-base) var(--ease-out);
}

.hover-shadow:hover {
    box-shadow: var(--shadow-xl);
}

/* Underline grow */
.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--brand-gold-900);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-base) var(--ease-out);
}

.hover-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--neutral-200);
    border-top-color: var(--brand-gold-900);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* Skeleton loader */
.skeleton {
    position: relative;
    overflow: hidden;
    background-color: var(--neutral-200);
    border-radius: var(--radius-md);
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.6) 50%,
        transparent 100%
    );
    animation: shimmerSlide 1.5s ease-in-out infinite;
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
    border-radius: var(--radius-sm);
}

.skeleton-heading {
    height: 2em;
    margin-bottom: 1em;
    border-radius: var(--radius-md);
}

.skeleton-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.skeleton-button {
    height: 44px;
    width: 120px;
    border-radius: var(--radius-md);
}

/* Pulse loader */
.pulse-loader {
    display: inline-flex;
    gap: var(--space-2);
}

.pulse-loader span {
    width: 12px;
    height: 12px;
    background-color: var(--brand-gold-900);
    border-radius: 50%;
    animation: pulse 1.4s ease-in-out infinite;
}

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

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

/* Progress bar */
.progress-bar {
    position: relative;
    width: 100%;
    height: 4px;
    background-color: var(--neutral-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--brand-gold-900);
    border-radius: var(--radius-full);
    transition: width var(--duration-base) var(--ease-out);
}

.progress-bar-indeterminate .progress-bar-fill {
    width: 30%;
    animation: progressBar 1.5s ease-in-out infinite;
}

/* ========================================
   STAGGER ANIMATIONS
   ======================================== */

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 50ms; }
.stagger-children > *:nth-child(3) { animation-delay: 100ms; }
.stagger-children > *:nth-child(4) { animation-delay: 150ms; }
.stagger-children > *:nth-child(5) { animation-delay: 200ms; }
.stagger-children > *:nth-child(6) { animation-delay: 250ms; }
.stagger-children > *:nth-child(7) { animation-delay: 300ms; }
.stagger-children > *:nth-child(8) { animation-delay: 350ms; }
.stagger-children > *:nth-child(9) { animation-delay: 400ms; }
.stagger-children > *:nth-child(10) { animation-delay: 450ms; }

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

.scroll-fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* ========================================
   ATTENTION SEEKERS
   ======================================== */

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    10%, 30% {
        transform: scale(1.1);
    }
    20%, 40% {
        transform: scale(1);
    }
}

.animate-heartbeat {
    animation: heartbeat 1.3s ease-in-out infinite;
}

/* Flash */
@keyframes flash {
    0%, 50%, 100% {
        opacity: 1;
    }
    25%, 75% {
        opacity: 0;
    }
}

.animate-flash {
    animation: flash 1s ease-in-out infinite;
}

/* ========================================
   BUTTON RIPPLE EFFECT
   ======================================== */

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

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ========================================
   PAGE TRANSITION
   ======================================== */

.page-transition-enter {
    opacity: 0;
    transform: translateY(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.page-transition-exit {
    opacity: 1;
    transform: translateY(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease-in, transform 0.3s ease-in;
}

/* ========================================
   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;
    }

    /* Keep essential animations */
    .spinner,
    .progress-bar-indeterminate .progress-bar-fill {
        animation-duration: 1s !important;
    }

    /* Disable decorative animations */
    .animate-pulse,
    .animate-bounce,
    .animate-float,
    .hover-lift,
    .hover-grow {
        animation: none !important;
    }

    .hover-lift:hover,
    .hover-grow:hover {
        transform: none !important;
    }
}

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

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