/* === ANIMATIONS ET KEYFRAMES === */

/* Animation du gradient de fond */
@keyframes gradientShift {
    0% {
        background-position: 0% 0%;
    }
    12% {
        background-position: 20% 30%;
    }
    25% {
        background-position: 60% 40%;
    }
    37% {
        background-position: 80% 70%;
    }
    50% {
        background-position: 100% 100%;
    }
    62% {
        background-position: 70% 80%;
    }
    75% {
        background-position: 30% 60%;
    }
    87% {
        background-position: 10% 20%;
    }
    100% {
        background-position: 0% 0%;
    }
}

/* Animations des particules flottantes */
@keyframes floatWave1 {
    0% {
        transform: translateY(100vh) translateX(0px) scale(0.8);
        opacity: 0.2;
    }
    20% {
        transform: translateY(75vh) translateX(30px) scale(1.1);
        opacity: 0.4;
    }
    40% {
        transform: translateY(50vh) translateX(-20px) scale(0.9);
        opacity: 0.3;
    }
    60% {
        transform: translateY(25vh) translateX(40px) scale(1.2);
        opacity: 0.8;
    }
    80% {
        transform: translateY(5vh) translateX(-15px) scale(1);
        opacity: 0.35;
    }
    100% {
        transform: translateY(-30vh) translateX(10px) scale(0.7);
        opacity: 0.1;
    }
}

@keyframes floatWave2 {
    0% {
        transform: translateY(110vh) translateX(-15px) scale(0.7);
        opacity: 0.15;
    }
    25% {
        transform: translateY(80vh) translateX(-40px) scale(1);
        opacity: 0.35;
    }
    50% {
        transform: translateY(45vh) translateX(25px) scale(1.15);
        opacity: 0.45;
    }
    75% {
        transform: translateY(15vh) translateX(-30px) scale(0.95);
        opacity: 0.3;
    }
    100% {
        transform: translateY(-40vh) translateX(20px) scale(0.8);
        opacity: 0.12;
    }
}

@keyframes floatWave3 {
    0% {
        transform: translateY(105vh) translateX(10px) scale(0.9);
        opacity: 0.25;
    }
    30% {
        transform: translateY(70vh) translateX(-25px) scale(1.3);
        opacity: 0.55;
    }
    60% {
        transform: translateY(35vh) translateX(35px) scale(1);
        opacity: 0.4;
    }
    90% {
        transform: translateY(5vh) translateX(-20px) scale(1.1);
        opacity: 0.3;
    }
    100% {
        transform: translateY(-35vh) translateX(15px) scale(0.6);
        opacity: 0.08;
    }
}

@keyframes floatWave4 {
    0% {
        transform: translateY(115vh) translateX(-5px) scale(0.85);
        opacity: 0.2;
    }
    35% {
        transform: translateY(75vh) translateX(20px) scale(1.05);
        opacity: 0.4;
    }
    65% {
        transform: translateY(40vh) translateX(-35px) scale(1.25);
        opacity: 0.48;
    }
    85% {
        transform: translateY(10vh) translateX(25px) scale(0.9);
        opacity: 0.28;
    }
    100% {
        transform: translateY(-45vh) translateX(-10px) scale(0.75);
        opacity: 0.1;
    }
}

/* Animation d'apparition */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === CLASSES D'UTILITÉ POUR LES ANIMATIONS === */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 
 * SYSTÈME D'ANIMATIONS SUBTILES ET PERFORMANTES
 * Animations d'ouverture de page et de scroll avec Intersection Observer
 */


/* === OPTIMISATIONS PERFORMANCE === */
.animate-element {
    will-change: transform, opacity;
    backface-visibility: hidden;
    perspective: 1000px;
}

/* === ÉTATS INITIAUX (INVISIBLES) === */
.fade-in-scroll,
.fade-in-up-scroll,
.fade-in-down-scroll,
.fade-in-left-scroll,
.fade-in-right-scroll,
.scale-in-scroll,
.slide-in-up-scroll,
.slide-in-down-scroll,
.slide-in-left-scroll,
.slide-in-right-scroll {
    opacity: 0;
    transform: translateZ(0); /* Force GPU */
}

/* États spécifiques avant animation */
.fade-in-up-scroll { transform: translateY(var(--animation-distance)) translateZ(0); }
.fade-in-down-scroll { transform: translateY(calc(-1 * var(--animation-distance))) translateZ(0); }
.fade-in-left-scroll { transform: translateX(calc(-1 * var(--animation-distance))) translateZ(0); }
.fade-in-right-scroll { transform: translateX(var(--animation-distance)) translateZ(0); }
.scale-in-scroll { transform: scale(0.9) translateZ(0); }
.slide-in-up-scroll { transform: translateY(var(--animation-distance)) translateZ(0); }
.slide-in-down-scroll { transform: translateY(calc(-1 * var(--animation-distance))) translateZ(0); }
.slide-in-left-scroll { transform: translateX(calc(-1 * var(--animation-distance))) translateZ(0); }
.slide-in-right-scroll { transform: translateX(var(--animation-distance)) translateZ(0); }

/* === ANIMATIONS ACTIVES === */
.fade-in-scroll.is-visible,
.fade-in-up-scroll.is-visible,
.fade-in-down-scroll.is-visible,
.fade-in-left-scroll.is-visible,
.fade-in-right-scroll.is-visible,
.scale-in-scroll.is-visible,
.slide-in-up-scroll.is-visible,
.slide-in-down-scroll.is-visible,
.slide-in-left-scroll.is-visible,
.slide-in-right-scroll.is-visible {
    opacity: 1;
    transform: translateX(0) translateY(0) scale(1) translateZ(0);
    transition: all var(--animation-duration) var(--animation-easing);
}

/* === ANIMATIONS OPTIONNELLES (à appliquer manuellement) === */

/* Animation d'ouverture de page optionnelle */
.animate-on-load {
    animation: fadeInLoad var(--animation-duration) var(--animation-easing) both;
}

.animate-on-load.delay-1 { animation-delay: var(--animation-delay); }
.animate-on-load.delay-2 { animation-delay: calc(var(--animation-delay) * 2); }
.animate-on-load.delay-3 { animation-delay: calc(var(--animation-delay) * 3); }
.animate-on-load.delay-4 { animation-delay: calc(var(--animation-delay) * 4); }

@keyframes fadeInLoad {
    from {
        opacity: 0;
        transform: translateY(var(--animation-distance-small)) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateY(0) translateZ(0);
    }
}

/* Animation optionnelle pour les titres */
.title-animate {
    animation: titleSlide var(--animation-duration-slow) var(--animation-easing) both;
}

@keyframes titleSlide {
    from {
        opacity: 0;
        transform: translateY(var(--animation-distance)) scale(0.98) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1) translateZ(0);
    }
}

/* Animation optionnelle pour les cards */
.card-animate {
    animation: cardFloat var(--animation-duration) var(--animation-easing) both;
}

@keyframes cardFloat {
    from {
        opacity: 0;
        transform: translateY(var(--animation-distance)) scale(0.95) translateZ(0);
        box-shadow: none;
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1) translateZ(0);
        box-shadow: var(--box-shadow);
    }
}

/* Animation optionnelle pour les boutons */
.button-animate {
    animation: buttonBounce var(--animation-duration-fast) var(--animation-easing) both;
}

@keyframes buttonBounce {
    from {
        opacity: 0;
        transform: scale(0.95) translateZ(0);
    }
    60% {
        transform: scale(1.02) translateZ(0);
    }
    to {
        opacity: 1;
        transform: scale(1) translateZ(0);
    }
}

/* === ANIMATIONS AU HOVER === */
.hover-lift {
    transition: transform var(--transition-speed) var(--transition-easing);
}

.hover-lift:hover {
    transform: translateY(-2px) translateZ(0);
}

.hover-scale {
    transition: transform var(--transition-speed) var(--transition-easing);
}

.hover-scale:hover {
    transform: scale(1.02) translateZ(0);
}

/* === ANIMATIONS POUR IMAGES === */
.image-reveal {
    overflow: hidden;
}

.image-reveal img {
    transition: transform var(--animation-duration-slow) var(--animation-easing),
                filter var(--animation-duration) var(--animation-easing);
    transform: scale(1.1) translateZ(0);
    filter: blur(2px);
}

.image-reveal.is-visible img {
    transform: scale(1) translateZ(0);
    filter: blur(0);
}

/* === RESPECT DES PRÉFÉRENCES D'ACCESSIBILITÉ === */
@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;
    }
    
    .fade-in-scroll,
    .fade-in-up-scroll,
    .fade-in-down-scroll,
    .fade-in-left-scroll,
    .fade-in-right-scroll,
    .scale-in-scroll,
    .slide-in-up-scroll,
    .slide-in-down-scroll,
    .slide-in-left-scroll,
    .slide-in-right-scroll {
        opacity: 1;
        transform: none;
    }
}

/* === CORRECTION COMPORTEMENT DE SCROLL === */
html {
    scroll-behavior: auto !important;
}

/* Éviter les conflits de position lors des changements de page */
body {
    scroll-behavior: auto !important;
}

/* Supprimer uniquement les barres de loading */
turbo-progress-bar, 
.turbo-progress-bar,
progress[value],
.loading-bar,
.progress-bar,
[role="progressbar"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}


/* === RESPONSIVE ADJUSTMENTS === */
@media (max-width: 768px) {
    :root {
        --animation-distance: 20px;
        --animation-distance-small: 10px;
        --animation-duration: 0.4s;
    }
}

/* === STAGGER DELAYS POUR LISTES === */
.stagger-item:nth-child(1) { transition-delay: calc(var(--animation-delay) * 1); }
.stagger-item:nth-child(2) { transition-delay: calc(var(--animation-delay) * 2); }
.stagger-item:nth-child(3) { transition-delay: calc(var(--animation-delay) * 3); }
.stagger-item:nth-child(4) { transition-delay: calc(var(--animation-delay) * 4); }
.stagger-item:nth-child(5) { transition-delay: calc(var(--animation-delay) * 5); }
.stagger-item:nth-child(6) { transition-delay: calc(var(--animation-delay) * 6); }