/* ==========================================================================
   Animaciones Globales y Clases de Utilidad
   ========================================================================== */

/* Estados iniciales para elementos observados */
.fade-in,
.slide-up,
.slide-left,
.slide-right,
.scale-in {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-up {
    transform: translateY(40px);
}

.slide-left {
    transform: translateX(40px);
}

.slide-right {
    transform: translateX(-40px);
}

.scale-in {
    transform: scale(0.9);
}

/* Estados cuando son visibles */
.is-visible {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* Retrasos para efectos en cascada */
.delay-100 {
    transition-delay: 100ms;
}

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

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

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

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

/* ==========================================================================
   Keyframes para efectos continuos
   ========================================================================== */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0.4);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(var(--color-primary-rgb), 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

/* ==========================================================================
   Partículas Tecnológicas Azules
   ========================================================================== */
.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    bottom: -10px;
    background-color: var(--color-accent);
    opacity: 0.35;
    border-radius: 50%;
    box-shadow: 0 0 8px var(--color-accent);
    animation: floatUpParticle 20s infinite linear;
}

@keyframes floatUpParticle {
    0% {
        transform: translate(0, 0) scale(0.5);
        opacity: 0;
    }

    10% {
        opacity: 0.45;
    }

    90% {
        opacity: 0.25;
    }

    100% {
        transform: translate(var(--move-x), -1000px) scale(1.5);
        opacity: 0;
    }
}

/* ==========================================================================
   Títulos Animados Premium (FASE 4.1)
   ========================================================================== */
.animated-heading {
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1), transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.animated-heading::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: width 1.2s cubic-bezier(0.85, 0, 0.15, 1) 0.4s; 
}
.animated-heading.is-visible { opacity: 1; transform: translateY(0); }
.animated-heading.is-visible::after { width: 60%; }