/**
 * Animaciones Optimizadas para Rendimiento
 * Solo usa propiedades GPU-accelerated: transform y opacity
 * Evita animaciones no compuestas que causan reflow
 */

/* ===========================================
   KEYFRAMES - SOLO TRANSFORM Y OPACITY
   =========================================== */

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

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateX(0) translateZ(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateX(0) translateZ(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateZ(0);
    }
    to {
        opacity: 1;
        transform: scale(1) translateZ(0);
    }
}

/* Pulse suave usando solo transform */
@keyframes pulse {
    0%, 100% {
        transform: scale(1) translateZ(0);
    }
    50% {
        transform: scale(1.03) translateZ(0);
    }
}

/* Float usando solo transform */
@keyframes float {
    0%, 100% {
        transform: translateY(0) translateZ(0);
    }
    50% {
        transform: translateY(-8px) translateZ(0);
    }
}

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

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

/* ===========================================
   CLASES DE ANIMACIÓN
   =========================================== */

.animate-fadeIn {
    animation: fadeIn 0.6s ease both;
    will-change: opacity;
}

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease both;
    will-change: opacity, transform;
}

.animate-fadeInDown {
    animation: fadeInDown 0.8s ease both;
    will-change: opacity, transform;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.8s ease both;
    will-change: opacity, transform;
}

.animate-fadeInRight {
    animation: fadeInRight 0.8s ease both;
    will-change: opacity, transform;
}

.animate-scaleIn {
    animation: scaleIn 0.6s ease both;
    will-change: opacity, transform;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
    will-change: transform;
}

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

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

.animation-delay-100 {
    animation-delay: 0.1s;
}

.animation-delay-200 {
    animation-delay: 0.2s;
}

.animation-delay-300 {
    animation-delay: 0.3s;
}

.animation-delay-400 {
    animation-delay: 0.4s;
}

.animation-delay-500 {
    animation-delay: 0.5s;
}

/* ===========================================
   HERO ANIMATIONS
   =========================================== */

.hero-section .hero-title {
    animation: fadeInUp 0.8s ease both;
    will-change: opacity, transform;
}

.hero-section .hero-subtitle {
    animation: fadeInUp 0.8s ease 0.2s both;
    will-change: opacity, transform;
}

.hero-section .hero-description {
    animation: fadeInUp 0.8s ease 0.4s both;
    will-change: opacity, transform;
}

.hero-section .hero-buttons {
    animation: fadeInUp 0.8s ease 0.6s both;
    will-change: opacity, transform;
}

/* ===========================================
   SERVICE CARD HOVER - GPU ACCELERATED
   =========================================== */

.service-card {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.service-card:hover {
    transform: translateY(-5px) translateZ(0);
}

.service-card:hover .service-icon {
    animation: pulse 1s ease;
}

/* ===========================================
   BUTTON EFFECTS - OPTIMIZADO
   =========================================== */

.btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%) translateZ(0);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

/* ===========================================
   LOADING ANIMATION
   =========================================== */

.loading {
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
    will-change: transform;
}

/* ===========================================
   SKELETON SHIMMER
   =========================================== */

.skeleton {
    position: relative;
    overflow: hidden;
    background: #f0f0f0;
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.5) 50%,
        transparent 100%
    );
    animation: shimmer 2s infinite;
    will-change: transform;
}

/* ===========================================
   SCROLL REVEAL
   =========================================== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px) translateZ(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
    will-change: opacity, transform;
}

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

/* ===========================================
   NAVIGATION LINK HOVER - OPTIMIZADO
   =========================================== */

.main-navigation a {
    position: relative;
    transform: translateZ(0);
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
    will-change: width;
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
    width: 100%;
}

/* ===========================================
   SOCIAL ICONS HOVER
   =========================================== */

.social-links a {
    transition: transform 0.3s ease;
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.social-links a:hover {
    transform: translateY(-3px) translateZ(0);
}

/* ===========================================
   FORM ELEMENTS
   =========================================== */

.form-group input,
.form-group textarea,
.form-group select {
    transition: transform 0.2s ease, opacity 0.2s ease;
    transform: translateZ(0);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    transform: scale(1.01) translateZ(0);
}

/* ===========================================
   EXPERIENCE BADGE - OPTIMIZADO
   =========================================== */

.experience-badge {
    animation: scaleIn 0.8s ease 0.5s both, 
               float 4s ease-in-out 1.5s infinite;
    will-change: transform, opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* ===========================================
   GPU ACCELERATION
   =========================================== */

.animate-fadeInUp,
.animate-fadeInDown,
.animate-fadeInLeft,
.animate-fadeInRight,
.service-card,
.btn,
.social-links a {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ===========================================
   PREFERS REDUCED MOTION
   =========================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
    
    .animate-fadeInUp,
    .animate-fadeInDown,
    .animate-fadeInLeft,
    .animate-fadeInRight,
    .animate-scaleIn,
    .animate-pulse,
    .animate-float {
        animation: none !important;
    }
    
    .scroll-reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

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

/* Contenedor de animaciones */
.animation-container {
    contain: layout style paint;
    content-visibility: auto;
}

/* Evitar reflows durante animaciones */
[class*="animate-"] {
    contain: layout style paint;
}