/* Vista affiancata (/Split): due moduli nella stessa pagina, ciascuno in un iframe */

body.split-view-page {
    overflow: hidden;
}

body.split-view-page main.main-content {
    padding: 0 !important;
}

.split-view {
    --split-left: 50%;
    display: flex;
    gap: 0;
    height: calc(100vh - 70px);
    padding: 4px 8px 8px;
}

.split-pane {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(15, 23, 42, .06);
}

.split-pane[data-side="left"] { flex: 0 0 var(--split-left); }
.split-pane[data-side="right"] { flex: 1 1 0; }

.split-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
}

.split-select {
    flex: 1 1 auto;
    min-width: 0;
    max-width: 320px;
    font-weight: 600;
}

.split-btn {
    border: 1px solid #e2e8f0;
    color: #475569;
    line-height: 1;
    padding: 6px 8px;
}

.split-frame-wrap {
    position: relative;
    flex: 1 1 auto;
    min-height: 0;
}

.split-frame {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: var(--crm-bg, #f1f5f9);
}

.split-loading {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 1.6rem;
    background: rgba(248, 250, 252, .6);
    pointer-events: none;
}

.split-pane.is-loading .split-loading { display: flex; }

/* Divisore trascinabile, con il pulsante per scambiare i due lati */
.split-divider {
    position: relative;
    flex: 0 0 10px;
    cursor: col-resize;
    display: flex;
    align-items: center;
    justify-content: center;
}

.split-divider::before {
    content: "";
    width: 3px;
    height: 40px;
    border-radius: 2px;
    background: #cbd5e1;
    transition: background .15s;
}

.split-divider:hover::before,
.split-view.is-dragging .split-divider::before { background: #6366f1; }

.split-swap {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #475569;
    font-size: .75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    z-index: 2;
    cursor: pointer;
}

.split-swap:hover { color: #6366f1; border-color: #6366f1; }

/* Durante il trascinamento gli iframe non devono "mangiarsi" il mouse */
.split-view.is-dragging { cursor: col-resize; user-select: none; }
.split-view.is-dragging .split-frame { pointer-events: none; }

/* Schermi stretti: uno sopra l'altro */
@media (max-width: 767.98px) {
    body.split-view-page { overflow: auto; }

    .split-view {
        flex-direction: column;
        height: auto;
    }

    .split-pane[data-side="left"],
    .split-pane[data-side="right"] {
        flex: 0 0 auto;
        height: 75vh;
    }

    .split-divider {
        flex: 0 0 36px;
        cursor: default;
    }

    .split-divider::before { display: none; }
    .split-swap { top: 50%; transform: translate(-50%, -50%) rotate(90deg); }
}

/* Selettore della navbar: si scelgono i due moduli prima di aprire /Split */
.split-picker-menu {
    width: 300px;
    padding: 14px 16px 16px;
}

.split-picker-title {
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 10px;
}

.split-picker-label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    color: #64748b;
    margin: 10px 0 4px;
}

@media (max-width: 575.98px) {
    .split-picker-menu { width: 100%; }
}