// ── Buddy btn (bottom-left mirror of #id_kit_btn) ─────────────────────────
//
// Lives on post.html only — slide-out recipient field for the share-post
// async flow. Mutually exclusive w. #id_kit_btn (bottom-right): when one is
// active (.active class on btn + html.{kit|buddy}-open class on root), the
// other quickly fades to opacity 0.
//
// Spec: functional_tests/test_buddy_btn.py.

#id_buddy_btn {
    position: fixed;
    bottom: 0.5rem;
    left: 0.5rem;

    @media (orientation: landscape) {
        left: 1rem;
        bottom: 0.5rem;
        top: auto;
    }

    @media (orientation: landscape) and (min-width: 1800px) {
        left: 2.5rem;  // mirror the doubled 8rem sidebar centring
    }

    z-index: 318;
    font-size: 1.75rem;
    cursor: pointer;
    color: rgba(var(--secUser), 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background-color: rgba(var(--priUser), 1);
    border: 0.15rem solid rgba(var(--secUser), 1);
    transition: opacity 0.15s ease;

    &.active {
        color: rgba(var(--quaUser), 1);
        border-color: rgba(var(--quaUser), 1);
    }
}

// Slide-out panel: collapsed by default; opens to span ~viewport - 3rem.
#id_buddy_panel {
    position: fixed;
    bottom: 0.5rem;       // align bottom edge w. buddy btn
    left: 1.5rem;
    right: 1.5rem;
    height: 3rem;         // match buddy btn height for vertical-centre alignment
    z-index: 317;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    pointer-events: none;
    overflow: hidden;

    // Closed state — collapse leftward into the buddy btn
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 0.2s ease-out, opacity 0.15s ease;
    opacity: 0;

    @media (orientation: landscape) {
        left: calc(4rem + 0.5rem);   // clear the navbar sidebar
        right: calc(4rem + 0.5rem);  // clear the footer sidebar
    }

    @media (orientation: landscape) and (min-width: 1800px) {
        left: calc(8rem + 0.5rem);
        right: calc(8rem + 0.5rem);
    }

    #id_recipient {
        flex: 1;
        min-width: 0;
        height: 100%;
        // Generous left padding so the buddy btn glyph (3rem circle pinned
        // at left:1.5rem) doesn't visually overlap the placeholder/typed text.
        padding: 0 1rem 0 3.5rem;
        background-color: rgba(var(--priUser), 1);
        color: rgba(var(--secUser), 1);
        border: 0.1rem solid rgba(var(--secUser), 0.5);
        border-radius: 1.5rem;
        font-family: inherit;

        &:focus {
            outline: none;
            border-color: rgba(var(--terUser), 0.75);
            box-shadow: 0 0 0.75rem rgba(var(--terUser), 0.5);
        }
    }

    .btn.btn-confirm {
        flex-shrink: 0;
    }
}

// html.buddy-open: slide the panel out, fade the kit btn away.
html.buddy-open {
    #id_buddy_panel {
        transform: scaleX(1);
        opacity: 1;
        pointer-events: auto;
    }

    #id_kit_btn {
        opacity: 0;
        pointer-events: none;
    }
}

// Kit dialog open: hide the buddy btn. We don't add an `html.kit-open`
// class (game-kit.js uses [open] on the dialog + .active on the btn), so
// the mutual-exclusion is driven by `:has()` against the open dialog.
html:has(#id_kit_bag_dialog[open]) #id_buddy_btn {
    opacity: 0;
    pointer-events: none;
}