/* =========================================================================
   3VA Web — Splash screen
   CSS puro: corre en index.html antes de que arranque Angular, sin framework
   ni JS. El logo entra con un fundido suave y un loader late abajo en bucle
   hasta que la app lo oculta añadiendo `.fuse-splash-screen-hidden` al <body>
   (FuseSplashScreenService).

   Fondo oscuro, así que se usa la variante on-dark del wordmark, cuyo texto va
   en blanco para cumplir el contraste WCAG AA.
   ========================================================================= */

body fuse-splash-screen {
    --a-bg: #0d1113;
    --a-acento: #6fb8ca;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    inset: 0;
    background-color: var(--a-bg);
    z-index: 999999;
    pointer-events: none;
    opacity: 1;
    visibility: visible;
    overflow: hidden;
    transition: opacity 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Glow ambiental --------------------------------------------------------- */
body fuse-splash-screen::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 560px;
    height: 560px;
    transform: translate(-50%, -50%) scale(0.6);
    background: radial-gradient(
        circle,
        rgba(111, 184, 202, 0.1) 0%,
        rgba(111, 184, 202, 0.05) 45%,
        transparent 70%
    );
    opacity: 0;
    filter: blur(14px);
    animation:
        a-glow-in 900ms cubic-bezier(0.22, 1, 0.36, 1) 120ms forwards,
        a-glow-breathe 5s ease-in-out 1.5s infinite;
}

body fuse-splash-screen .a-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
}

/* Logo ------------------------------------------------------------------- */
body fuse-splash-screen .a-logo {
    position: relative;
    width: 220px;
    max-width: 66vw;
    opacity: 0;
    transform: scale(0.94);
    animation:
        a-logo-in 500ms ease 150ms forwards,
        a-float 5s ease-in-out 900ms infinite;
}

body fuse-splash-screen .a-logo-full {
    display: block;
    width: 100%;
    height: auto;
}

/* Loader ----------------------------------------------------------------- */
body fuse-splash-screen .a-loader {
    position: relative;
    margin-top: 30px;
    width: 150px;
    max-width: 60vw;
    height: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
    opacity: 0;
    animation: a-fade-in 600ms ease 500ms forwards;
}

body fuse-splash-screen .a-loader span {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 42%;
    border-radius: inherit;
    background: linear-gradient(
        90deg,
        transparent,
        var(--a-acento) 50%,
        transparent
    );
    animation: a-slide 1.3s cubic-bezier(0.65, 0, 0.35, 1) 600ms infinite;
}

/* Keyframes -------------------------------------------------------------- */
@keyframes a-fade-in {
    to {
        opacity: 1;
    }
}
@keyframes a-logo-in {
    to {
        opacity: 1;
        transform: scale(1);
    }
}
@keyframes a-float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}
@keyframes a-slide {
    0% {
        left: -42%;
        width: 42%;
    }
    50% {
        width: 52%;
    }
    100% {
        left: 100%;
        width: 42%;
    }
}
@keyframes a-glow-in {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.6);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}
@keyframes a-glow-breathe {
    0%,
    100% {
        opacity: 0.85;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.08);
    }
}

/* Movimiento reducido: sin animación, logo y loader visibles -------------- */
@media (prefers-reduced-motion: reduce) {
    body fuse-splash-screen::before,
    body fuse-splash-screen .a-logo,
    body fuse-splash-screen .a-loader {
        animation: none;
        opacity: 1;
        transform: none;
    }
    body fuse-splash-screen .a-loader span {
        animation: a-slide 1.3s cubic-bezier(0.65, 0, 0.35, 1) infinite;
    }
}

/* Ocultar / mostrar ------------------------------------------------------ */
body:not(.fuse-splash-screen-hidden) {
    overflow: hidden;
}

body.fuse-splash-screen-hidden fuse-splash-screen {
    visibility: hidden;
    opacity: 0;
}