:root {
    --fondo: #0a1416;
    --texto-acento: #00e0f0;
    --texto-principal: #f8fafc;
    --texto-secundario: #64748b;
    /* Versión RGB para poder usar transparencias */
    --acento-rgb: 0, 224, 240;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--fondo);
    background-image:
        radial-gradient(circle at 5% 55%, rgba(var(--acento-rgb), 0.15) 0%, rgba(var(--acento-rgb), 0.02) 55%, transparent 80%);
    background-size: 100% 100%, 45px 45px;
    background-attachment: fixed;
    color: var(--texto-principal);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    margin-bottom: 3rem;
}

nav a {
    color: var(--texto-principal);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
    transition: color 0.3s;
    justify-content: space-between;
    margin: 20px;
}

.header-principal {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(var(--acento-rgb), 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(var(--acento-rgb), 0.1);
}

h1 {
    font-weight: 800;
    letter-spacing: -1px;
    font-size: 3.5rem;
}

.texto-acento {
    color: var(--texto-acento);
}

.texto-principal {
    color: var(--texto-principal);
}

.texto-secundario {
    color: var(--texto-secundario);
}

.contenedor-principal {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
}

.badge-estado {
    display: inline-block;
    background-color: rgba(var(--acento-rgb), 0.1);
    color: var(--texto-acento);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(var(--acento-rgb), 0.2);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    width: fit-content;
}

.hero {
    padding: 5.5rem 0 15rem 0;
    display: flex;
    flex-direction: row;
}

.hero-introduccion {
    display: flex;
    flex-direction: column;
    width: 55%;
}

.hero-imagenes {
    position: relative;
    width: 45%;
    min-height: 400px;
    display: block;
    margin: 40px;
}

.crecimiento-ingresos {
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    z-index: 2;
    filter: drop-shadow(0 0 20px rgba(0, 224, 240, 0.1));
    animation: flotando 6s ease-in-out infinite;
}

.actividad-nodos {
    position: absolute;
    width: 225px;
    bottom: 25px;
    left: 10px;
    z-index: 1;
    filter: drop-shadow(0 0 20px rgba(0, 224, 240, 0.1));
    animation: parpadeando 3s ease-in-out infinite;
}

.botones-hero {
    display: flex;
    gap: 1rem;
}

.boton-principal {
    background-color: var(--texto-acento);
    color: var(--fondo);
    font-weight: 700;
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 14px rgba(var(--acento-rgb) 0.3);
    transition: all 0.3s ease;
}

.boton-principal:hover {
    transform: translateY(-2px);
    /*lo mueve hacía arriba*/
    box-shadow: 0 5px 15px rgba(var(--acento-rgb) 0.3);
    /*hace un resplandor en el boton*/
    filter: brightness(1.1)
        /*hace que brille un poco más*/
}

.boton-secundario {
    background-color: transparent;
    color: var(--texto-principal);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.473);
    padding: 10px;
    transition: all 0.3s ease;
}

.boton-secundario:hover {
    transform: translateY(-2px);
}

.estudios-casos {
    padding: 5rem 0;
}

.herramientas-contenedor {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.contenedor-stack {
    text-align: center;
    padding: 5rem 0;
}

.contenedor-stack h2 {
    font-size: 2rem;
    color: var(--texto-acento);
}

.herramientas {
    display: flex;
    flex-direction: column;
    text-align: center;
    background-color: transparent;
    gap: 10px;
    filter: drop-shadow(0 0 20px rgba(0, 224, 240, 0.3));
}

.herramientas img {
    height: 40px;
}

@keyframes flotando {
    0% {
        transform: translateY(0px);
    }

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

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

@keyframes parpadeando {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}