/* ==========================================================
   Probiomics Hero 01 — Background Layers
   Solo fade-in opacity, nessun transform, nessun filter.
   ========================================================== */

:root {
    --pb-hero01-entrance-bg:    0s;
    --pb-hero01-entrance-1l:    1s;
    --pb-hero01-entrance-1r:    2s;
    --pb-hero01-entrance-2r:    2.2s;
    --pb-hero01-entrance-2l:    3.5s;
    --pb-hero01-fade-dur:       1s;
    --pb-hero01-fade-dur-slow:  2.5s;
}

.pb-hero01 {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    /* z-index intenzionalmente assente: evita stacking context isolato
       che impedirebbe a mix-blend-mode di vedere il gradiente Elementor */
}

.pb-hero01__layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    top: auto;
    opacity: 0;
}


/* Layer bg video — fade-in base (sovrascritto dal rise sul desktop) */
.pb-hero01__layer--bg {
    animation: pb-fade var(--pb-hero01-fade-dur) ease-out var(--pb-hero01-entrance-bg) 1 forwards;
}

/* Layer bg PNG — fade + rise dal basso */
.pb-hero01__layer--bg-img {
    animation: pb-fade-bg-img var(--pb-hero01-fade-dur) ease-out var(--pb-hero01-entrance-bg) 1 forwards;
}

@keyframes pb-fade-bg-img {
    from { opacity: 0; transform: translateY(60px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Mobile: PNG visibile, video nascosto */
.pb-hero01__layer--bg-video {
    display: none;
}

/* Desktop: video visibile con blend mode, PNG nascosto */
@media (min-width: 769px) {
    .pb-hero01__layer--bg-img {
        display: none;
    }
    .pb-hero01__layer--bg-video {
        display: block;
        mix-blend-mode: screen;
        animation: pb-video-rise 8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0s 1 both;
    }
}

/* ----------------------------------------------------------
   Glow overlay sui layer molecolari --2l / --2r
   ---------------------------------------------------------- */
@media (max-width: 768px) {
    .pb-hero01__layer--glow { display: none; }

    .pb-hero01 {
        width: 150%;
        left: 0;
        right: auto;
    }
}

.pb-hero01__layer--glow {
    opacity: 0;
    overflow: hidden;
    animation: pb-fade var(--pb-hero01-fade-dur-slow) ease-out var(--pb-hero01-entrance-2l) 1 forwards;
    -webkit-mask-size: cover;
    mask-size: cover;
    -webkit-mask-position: center bottom;
    mask-position: center bottom;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
}

.pb-hero01__layer--glow-l {
    -webkit-mask-image: url('images/lev_2-left.png');
    mask-image: url('images/lev_2-left.png');
}

.pb-hero01__layer--glow-r {
    -webkit-mask-image: url('images/lev_2-right.png');
    mask-image: url('images/lev_2-right.png');
}

.pb-hero01__layer--glow::before {
    content: '';
    position: absolute;
    inset: 0;
    mix-blend-mode: screen;
    background: linear-gradient(
        110deg,
        transparent 15%,
        rgba(140, 230, 255, 0.5) 35%,
        rgba(180, 245, 255, 1)   50%,
        rgba(140, 230, 255, 0.5) 65%,
        transparent 85%
    );
    transform: translateX(-100%);
    animation: pb-light-sweep 13s ease-in-out calc(var(--pb-hero01-entrance-2l) + var(--pb-hero01-fade-dur-slow)) infinite;
}

.pb-hero01__layer--glow-r::before {
    animation-delay: calc(var(--pb-hero01-entrance-2l) + var(--pb-hero01-fade-dur-slow) + 4s);
}

@keyframes pb-light-sweep {
    0%   { transform: translateX(-100%); }
    50%  { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}


@keyframes pb-video-rise {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 0.4;  /* ← opacità finale */
        transform: translateY(0);
    }
}

@keyframes pb-fade-video {
    from { opacity: 0; }
    to   { opacity: var(--pb-video-opacity, 0.6); }
}

.pb-hero01__layer--1r {
    animation: pb-fade-1r var(--pb-hero01-fade-dur) ease-out var(--pb-hero01-entrance-1r) 1 forwards;
}

@keyframes pb-fade-1r {
    from { opacity: 0; transform: translateY(80px); }
    to   { opacity: 0.8; transform: translateY(0); }
}

.pb-hero01__layer--1l {
    animation: pb-fade-1l var(--pb-hero01-fade-dur) ease-out var(--pb-hero01-entrance-1l) 1 forwards;
}

@keyframes pb-fade-1l {
    from { opacity: 0; transform: translateY(80px); }
    to   { opacity: 0.5; transform: translateY(0); }
}

.pb-hero01__layer--2r {
    animation: pb-fade-2 var(--pb-hero01-fade-dur-slow) ease-out var(--pb-hero01-entrance-2r) 1 forwards;
}

.pb-hero01__layer--2l {
    animation: pb-fade-2 var(--pb-hero01-fade-dur-slow) ease-out var(--pb-hero01-entrance-2l) 1 forwards;
}

@keyframes pb-fade-2 {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pb-fade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .pb-hero01__layer {
        animation: none !important;
        opacity: 1 !important;
    }
}