/*
 * CARD-BACK.CSS — Container skeleton only
 *
 * NO background gradient. NO color wash. Just structure.
 * Each zone file owns its own colors from its own slots.
 *
 * Zones:
 *   card-back-header.css  — model, toggles, gear, drawer  (slots 1/2)
 *   card-back-chat.css    — image, conversation, input     (slots 3/4)
 *   card-back-actions.css — orbs + generate                (slots 5/6)
 */

.card-back-layout {
    --card-base: #1a1a2e;   /* unified with the :root seed — see standalone-carousel.css */

    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 6px;
    gap: 4px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;

    /* Hair in the cracks — contrast to any outfit */
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--primary) 25%, var(--card-base)) 0%,
        color-mix(in srgb, var(--primary) 15%, var(--card-base)) 100%);

    /* Subtle border from slot-3 */
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);

    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.card-back-layout:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow:
        0 6px 25px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* Select2 compact sizing for card-back FK selects */
.card-back-layout .select2-container .select2-selection--single {
    height: 28px;
    padding: 0 6px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-left: 3px solid color-mix(in srgb, var(--primary) 60%, transparent);
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-back-layout .select2-container .select2-selection--single:hover {
    border-color: rgba(255, 255, 255, 0.18);
    border-left-color: color-mix(in srgb, var(--primary) 80%, transparent);
}

.card-back-layout .select2-container--open .select2-selection--single {
    background: rgba(0, 0, 0, 0.4);
    border-color: var(--primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 25%, transparent);
}

.card-back-layout .select2-container .select2-selection__rendered {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.7rem;
    line-height: 28px;
    padding: 0 1.25rem 0 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-back-layout .select2-container .select2-selection__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 0.4rem;
    width: 12px;
    height: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-back-layout .select2-container .select2-selection__arrow b {
    border-color: rgba(255, 255, 255, 0.4) transparent transparent transparent;
    border-width: 4px 4px 0 4px;
}

/* Select2 dropdown (global — rendered outside card) */
.select2-container--open .select2-dropdown {
    z-index: 10000;
}

.select2-dropdown {
    background: var(--card-base);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.select2-results__option {
    color: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
}

.select2-results__option--highlighted.select2-results__option--selectable {
    background: color-mix(in srgb, var(--select2-accent) 30%, var(--card-base));
    color: white;
}

.select2-results__option--selected {
    background: color-mix(in srgb, var(--select2-accent) 20%, var(--card-base));
}

.select2-search--dropdown .select2-search__field {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: white;
    /* Horizontal padding only — vertical padding plus the container's
       `align-items: center` plus browser-specific input line-height
       was producing asymmetric centering (high on desktop, low on
       iOS / Android). Fill the container's full height instead so
       the input IS its centered slot; the flex container does the
       alignment, not the padding. */
    padding: 0 0.5rem;
    height: 100%;
    box-sizing: border-box;
    line-height: 1;
    -webkit-appearance: none;
    appearance: none;
}

.select2-search--dropdown .select2-search__field:focus {
    border-color: var(--select2-accent);
    outline: none;
}

/* FK thumb in Select2 dropdown */
.select2-results .fk-thumb {
    width: 28px;
    height: 28px;
    border-radius: 3px;
    object-fit: cover;
    flex-shrink: 0;
}

.select2-results .fk-select-result {
    display: flex;
    align-items: center;
    gap: 6px;
}