/* =========================================================
   franVagu — HERO REFINEMENT
   Mantiene la estructura HTML actual.
   Cargar DESPUÉS de style.css
   ========================================================= */

:root {
    --fv-blue: #0D47A1;
    --fv-blue-2: #1565C0;
    --fv-cyan: #00B8FF;
    --fv-accent: #00E1C6;
    --fv-navy: #0A0F1A;
}

/* HERO */
.hero {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

/* Cuadrícula tecnológica, mucho más sutil */
.hero-grid {
    opacity: .72;
    background-image:
        linear-gradient(rgba(0,184,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,184,255,.055) 1px, transparent 1px);
}

/* Luz detrás del elemento FVA */
.hero-glow {
    background:
        radial-gradient(circle at 72% 48%,
            rgba(0,184,255,.16) 0%,
            rgba(0,225,198,.07) 24%,
            transparent 58%);
}

/* Etiqueta superior */
.hero-label {
    letter-spacing: .16em;
}

.hero-label-dot {
    background: var(--fv-cyan);
    box-shadow:
        0 0 0 4px rgba(0,184,255,.09),
        0 0 18px rgba(0,184,255,.55);
}

/* H1: la segunda línea se convierte en firma visual */
.hero-content h1 span {
    display: inline-block;
    background: linear-gradient(
        110deg,
        #ffffff 0%,
        #dcecff 42%,
        var(--fv-cyan) 78%,
        var(--fv-accent) 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Botón principal */
.hero-button-primary {
    border: 1px solid rgba(0,225,198,.28);
    background: linear-gradient(
        120deg,
        var(--fv-blue),
        var(--fv-blue-2) 45%,
        var(--fv-cyan) 100%
    );
    box-shadow: 0 10px 30px rgba(0,71,161,.18);
}

.hero-button-primary:hover {
    box-shadow:
        0 12px 34px rgba(0,184,255,.22),
        0 0 0 1px rgba(0,225,198,.18);
}

/* Botón secundario */
.hero-button-secondary {
    border-color: rgba(0,184,255,.30);
}

.hero-button-secondary:hover {
    border-color: rgba(0,225,198,.65);
    color: var(--fv-accent);
}

/* Especialidades */
.hero-trust span:not(:nth-child(even)) {
    transition: color .25s ease;
}

.hero-trust span:not(:nth-child(even)):hover {
    color: #ffffff;
}

/* =========================================================
   ELEMENTO FVA — protagonista visual
   ========================================================= */

.hero-visual {
    position: relative;
}

/* Anillos */
.hero-ring {
    border-color: rgba(0,184,255,.10);
}

.hero-ring-1 {
    box-shadow: 0 0 55px rgba(0,184,255,.05);
}

.hero-ring-2 {
    border-color: rgba(0,225,198,.12);
}

.hero-ring-3 {
    border-color: rgba(21,101,192,.16);
}

/* Nodos */
.hero-node {
    background: var(--fv-cyan);
    box-shadow:
        0 0 0 4px rgba(0,184,255,.08),
        0 0 20px rgba(0,184,255,.65);
}

.hero-node-2 {
    background: var(--fv-accent);
}

/* FVA */
.fva-mark {
    position: relative;
    transform: scale(1.03);
    filter: drop-shadow(0 20px 40px rgba(0,71,161,.20));
}

.fva-mark::before {
    content: "";
    position: absolute;
    inset: 18% 18%;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(0,184,255,.12),
        transparent 68%
    );
    filter: blur(12px);
    z-index: -1;
}

/* F y A: sobrias */
.fva-f,
.fva-a {
    color: #dbe8f8;
    text-shadow: 0 0 24px rgba(0,184,255,.10);
}

/* V: protagonista de marca */
.fva-v {
    color: var(--fv-cyan) !important;
    text-shadow:
        0 0 10px rgba(0,184,255,.55),
        0 0 30px rgba(0,184,255,.30),
        0 0 60px rgba(0,225,198,.12);
    position: relative;
    z-index: 2;
}

/* Pequeño acento debajo de FVA */
.hero-visual-caption {
    border-top-color: rgba(0,184,255,.18);
}

.hero-visual-caption span:first-child {
    color: var(--fv-cyan);
}

.hero-visual-caption span:last-child {
    color: rgba(255,255,255,.52);
    letter-spacing: .20em;
}

/* Scroll */
.hero-scroll-line {
    background: linear-gradient(
        to bottom,
        var(--fv-cyan),
        transparent
    );
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 900px) {
    .hero-glow {
        background:
            radial-gradient(circle at 50% 58%,
                rgba(0,184,255,.13),
                transparent 62%);
    }

    .hero-content h1 span {
        display: inline;
    }
}

@media (max-width: 600px) {
    .hero-glow {
        opacity: .75;
    }

    .fva-mark {
        transform: scale(.92);
    }
}