/* ===============================
   SECCIÓN SOLUCIONES – ENTERPRISE
================================ */

.solutions-section {
    position: relative;
    color: #fff;
    padding: 120px 20px;
    display: grid;
    gap: 80px;
    max-width: 1500px;
    margin: 0 auto;
    overflow: hidden;
}

/* ===============================
   CANVAS
================================ */

#network-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;

    /* 🔥 CLAVE: el núcleo ya no queda detrás de las cards */
    z-index: 1;

    /* evita bloquear hover/flip de las cards */
    pointer-events: none;

    opacity: .35;
}

/* Contenido por encima del fondo pero sin tapar efectos */
.solutions-left,
.solutions-grid {
    position: relative;
    z-index: 2;
}

/* ===============================
   PARTÍCULAS SUAVES
================================ */

.solutions-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
            radial-gradient(circle at 20% 30%, rgba(0,150,255,.08) 2px, transparent 3px),
            radial-gradient(circle at 70% 60%, rgba(0,120,255,.06) 2px, transparent 3px);
    background-size: 180px 180px;
    animation: particlesMove 60s linear infinite;
    pointer-events: none;
    opacity: .4;
}

@keyframes particlesMove {
    from { transform: translateY(0); }
    to { transform: translateY(-300px); }
}

/* ===============================
   IZQUIERDA
================================ */

.solutions-left {
    position: relative;
}

.solutions-left::before {
    content: "";
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, #0072ff, transparent);
    display: block;
    margin-bottom: 30px;
}

.solutions-left h2 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 500;
    letter-spacing: -.02em;
    margin-bottom: 28px;
    animation: titlePulse 4s ease-in-out infinite;
}

@keyframes titlePulse {
    0%,100% { text-shadow: 0 0 8px rgba(0,200,255,.15); }
    50% { text-shadow: 0 0 18px rgba(0,200,255,.35); }
}

.solutions-left p {
    line-height: 1.9;
    font-size: 1.05rem;
    color: rgba(255,255,255,.75);
}

/* ===============================
   BLOQUE IZQUIERDO – REVEAL PREMIUM
================================ */

/* estado inicial oculto */
.solutions-left::before {
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .8s cubic-bezier(.4,.2,.2,1);
}

.solutions-left h2,
.solutions-left p {
    opacity: 0;
    transform: translateY(30px);
    transition:
            opacity .8s cubic-bezier(.4,.2,.2,1),
            transform .8s cubic-bezier(.4,.2,.2,1);
}

/* cuando se activa */
.solutions-left.show::before {
    transform: scaleX(1);
}

.solutions-left.show h2 {
    opacity: 1;
    transform: translateY(0);
    transition-delay: .15s;
}

.solutions-left.show p {
    opacity: 1;
    transform: translateY(0);
    transition-delay: .35s;
}


/* ===============================
   GRID
================================ */

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
}

/* ===============================
   CARD BASE
================================ */

.solution-card {
    position: relative;
    height: clamp(260px, 30vw, 340px);
    border-radius: 18px;
    overflow: hidden;
    perspective: 1400px;
    background: rgba(255,255,255,.02);
    border: 1px solid rgba(255,255,255,.05);
    transition: transform .4s ease, border-color .4s ease;
}

.solution-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0,140,255,.4);
}

/* ===============================
   FLIP
================================ */

.card-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform .9s cubic-bezier(.4,.2,.2,1);
}

.card-front,
.card-back {
    position: absolute;
    inset: 0;
    border-radius: 18px;
    backface-visibility: hidden;
}

.card-front {
    background:
            linear-gradient(to bottom, rgba(0,0,0,.3), rgba(0,0,0,.75)),
            var(--bg) center / cover no-repeat;
}

.card-front .overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
}

.card-front h3 {
    width: 100%;
    margin: 0;
    padding: 22px 28px;
    font-size: .95rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    background: rgba(5,18,32,.65);
    backdrop-filter: blur(8px);
}

.card-back {
    transform: rotateY(180deg);
    background:
            linear-gradient(145deg, rgba(0,45,85,.96), rgba(5,18,32,.98)),
            var(--bg) center / cover no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    padding: 40px;
    text-align: center;
}

.card-back h3 {
    font-size: 1.3rem;
    letter-spacing: .2em;
    text-transform: uppercase;
}

.btn-more {
    padding: 14px 36px;
    border: 1px solid rgba(0,140,255,.6);
    color: #fff;
    text-decoration: none;
    font-size: .7rem;
    letter-spacing: .25em;
    text-transform: uppercase;
    transition: .3s ease;
    background: rgba(0,80,150,.08);
}

.btn-more:hover {
    background: rgba(0,140,255,.8);
    color: #081628;
}

.solution-card.flipped .card-inner{
    transform: rotateY(180deg);
}

@media (hover: hover) {
    .solution-card:hover .card-inner {
        transform: rotateY(180deg);
    }
}

/* ===============================
   CARD ENTRANCE ANIMATION
================================ */

.solution-card {
    opacity: 0;
    transform: translateY(40px) scale(.96);
    transition:
            opacity .8s cubic-bezier(.4,.2,.2,1),
            transform .8s cubic-bezier(.4,.2,.2,1);
}

/* cuando se activa */
.solution-card.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}


/* ===============================
   TABLET
================================ */

@media (min-width: 576px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===============================
   DESKTOP ENTERPRISE FIX
================================ */

@media (min-width: 1200px) {

    .solutions-section {
        grid-template-columns: 420px 1fr;
        gap: 80px;
        padding-left: 20px;
        padding-right: 20px;

        /* 🔥 CLAVE: centra verticalmente el texto respecto a las cards */
        align-items: center;
    }

    .solutions-left {
        position: sticky;

        /* antes: 140px (lo empujaba hacia arriba) */
        top: 50%;

        /* 🔥 centra el bloque completo en el eje vertical */
        transform: translateY(-50%);

        padding-right: 60px;
        max-width: 420px;
    }
}
/* Animación líneas */
@keyframes dataFlow {
    from { background-position: 0 0, 0 0; }
    to   { background-position: 0 0, 0 -40px; }
}