/* ============================================
   ANIMATIONS - Tendances 2026
   Micro-interactions et animations fluides
   ============================================ */

/* ============================================
   KEYFRAMES 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);
    }
}

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

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

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

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

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

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

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

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

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

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

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

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

.animate-pulse {
    animation: pulse 2s infinite;
}

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

/* Delay utilities */
.animation-delay-100 {
    animation-delay: 100ms;
}

.animation-delay-200 {
    animation-delay: 200ms;
}

.animation-delay-300 {
    animation-delay: 300ms;
}

.animation-delay-400 {
    animation-delay: 400ms;
}

.animation-delay-500 {
    animation-delay: 500ms;
}

/* ============================================
   HOVER EFFECTS - Tendances 2026
   ============================================ */

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

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

/* Glow effect */
.hover-glow {
    position: relative;
    transition: all var(--transition-base);
}

.hover-glow::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    box-shadow: 0 0 20px rgba(0, 130, 59, 0.5);
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.hover-glow:hover::after {
    opacity: 1;
}

/* Shine effect */
.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.5s;
}

.hover-shine:hover::before {
    left: 100%;
}

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

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

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.scroll-fade-in {
    opacity: 0;
    transition: opacity 0.8s ease-out;
}

.scroll-fade-in.visible {
    opacity: 1;
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

.skeleton-loading {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0%,
        var(--color-gray-300) 50%,
        var(--color-gray-200) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-image {
    height: 200px;
    width: 100%;
}

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

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

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

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

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

/* ============================================
   PARTICLE EFFECT (Background Animation)
   ============================================ */

.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 10s infinite ease-in-out;
}

@keyframes float-particle {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-100px) translateX(50px);
    }
    50% {
        transform: translateY(-200px) translateX(-30px);
    }
    75% {
        transform: translateY(-100px) translateX(80px);
    }
}

/* ============================================
   PARALLAX EFFECT
   ============================================ */

.parallax {
    transform: translateZ(0);
    transition: transform 0.1s ease-out;
}

/* ============================================
   GRADIENT ANIMATIONS
   ============================================ */

.gradient-animated {
    background: linear-gradient(
        -45deg,
        var(--color-primary),
        var(--color-accent),
        var(--color-secondary),
        var(--color-primary)
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* ============================================
   TEXT ANIMATIONS
   ============================================ */

.text-shimmer {
    background: linear-gradient(
        90deg,
        var(--color-gray-800),
        var(--color-primary),
        var(--color-gray-800)
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

.text-typing {
    overflow: hidden;
    border-right: 2px solid var(--color-primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40) 1s 1 normal both, blink 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

/* ============================================
   MORPHING SHAPES
   ============================================ */

.morph-shape {
    animation: morph 8s ease-in-out infinite;
}

@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    25% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    50% {
        border-radius: 70% 30% 50% 50% / 30% 30% 70% 70%;
    }
    75% {
        border-radius: 40% 60% 60% 40% / 70% 50% 50% 60%;
    }
}

/* ============================================
   PROGRESS ANIMATIONS
   ============================================ */

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

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

/* ============================================
   STAGGER ANIMATIONS (for lists)
   ============================================ */

.stagger-animation > * {
    animation: fadeInUp 0.6s ease-out backwards;
}

.stagger-animation > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animation > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animation > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animation > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-animation > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-animation > *:nth-child(6) { animation-delay: 0.6s; }
.stagger-animation > *:nth-child(7) { animation-delay: 0.7s; }
.stagger-animation > *:nth-child(8) { animation-delay: 0.8s; }
.stagger-animation > *:nth-child(9) { animation-delay: 0.9s; }
.stagger-animation > *:nth-child(10) { animation-delay: 1s; }

/* ============================================
   MICRO-INTERACTIONS
   ============================================ */

/* Button press effect */
.btn-press {
    transition: transform 0.1s ease;
}

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

/* Icon bounce on hover */
.icon-bounce:hover i {
    animation: bounce 0.5s ease;
}

/* Card tilt effect */
.card-tilt {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

.card-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(2deg);
}

/* ============================================
   TRANSITION GROUPS (for SPA-like behavior)
   ============================================ */

.fade-enter {
    opacity: 0;
}

.fade-enter-active {
    opacity: 1;
    transition: opacity 0.3s ease;
}

.fade-exit {
    opacity: 1;
}

.fade-exit-active {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slide-enter {
    transform: translateX(100%);
}

.slide-enter-active {
    transform: translateX(0);
    transition: transform 0.3s ease;
}

.slide-exit {
    transform: translateX(0);
}

.slide-exit-active {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

/* ============================================
   REDUCED MOTION (Accessibility)
   ============================================ */

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

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* GPU acceleration for smooth animations */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Will-change for known animations */
.will-animate {
    will-change: transform, opacity;
}

/* Remove will-change after animation */
.animation-complete {
    will-change: auto;
}