/**
 * ANIMATIONS CSS
 * Animations fluides et professionnelles
 */

/* ==============================================
   KEYFRAMES
   ============================================== */

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

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.8);
    }
}

@keyframes glowText {
    0%, 100% {
        text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
    }
}

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

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

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

/* ==============================================
   CLASSES D'ANIMATION
   ============================================== */

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

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

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

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

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

.glow-text {
    animation: glowText 2s ease-in-out infinite;
}

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

/* ==============================================
   ANIMATIONS AU SCROLL (via JS)
   ============================================== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ==============================================
   ANIMATIONS SPÉCIFIQUES
   ============================================== */

/* Animation du logo */
.nav-logo a {
    animation: fadeInDown 0.8s ease-out;
}

/* Animation des liens de navigation */
.nav-link {
    opacity: 0;
    animation: fadeInDown 0.6s ease-out forwards;
}

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

/* Animation du hero */
.hero-content h1 {
    animation: fadeInUp 1s ease-out;
}

.hero-content h2 {
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-content p {
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

/* Animation des cartes */
.card {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.cards-grid .card:nth-child(1) { animation-delay: 0.1s; }
.cards-grid .card:nth-child(2) { animation-delay: 0.2s; }
.cards-grid .card:nth-child(3) { animation-delay: 0.3s; }
.cards-grid .card:nth-child(4) { animation-delay: 0.4s; }
.cards-grid .card:nth-child(5) { animation-delay: 0.5s; }
.cards-grid .card:nth-child(6) { animation-delay: 0.6s; }

/* Hover effects */
.card:hover .card-icon {
    animation: pulse 0.5s ease;
}

/* Animation de la barre de progression des skills */
.skill-progress {
    animation: slideRight 1.5s ease-out;
}

@keyframes slideRight {
    from {
        width: 0;
    }
}

/* Animation du bouton theme toggle */
.theme-toggle i {
    transition: transform 0.5s ease;
}

body.dark-mode .theme-toggle i {
    transform: rotate(180deg);
}

/* Effet shimmer sur les boutons */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

/* Réduction des animations sur demande (accessibilité) */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .scroll-reveal, .scroll-reveal-left, .scroll-reveal-right { opacity: 1; transform: none; }
    .card, .nav-link { opacity: 1 !important; animation: none !important; }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}