/* file-browser.css — the reusable lazy file tree (controls/file-browser.js).
   Tokens only (core.css / active skin); tints via color-mix, never raw hex.
   Every rule that sets display on a togglable element carries its own [hidden]
   guard — an author display rule beats the UA's [hidden] { display:none }. */

.lp-fb {
    display: flex;
    flex-direction: column;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
    outline: none;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius, 6px);
}
.lp-fb[hidden] { display: none; }

.lp-fb-tree {
    overflow-y: auto;
    padding: 4px 0;
    min-height: 0;
}

.lp-fb-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px calc(10px + (var(--fb-depth, 0) * 16px));
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lp-fb-row[hidden] { display: none; }
.lp-fb-row:hover { background: color-mix(in srgb, var(--text-primary) 6%, transparent); }
.lp-fb-row--selected,
.lp-fb-row[aria-selected="true"] {
    background: color-mix(in srgb, var(--accent) 14%, transparent);
}
.lp-fb-row--focus {
    outline: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
    outline-offset: -1px;
}

/* Transient rows are information, not targets. */
.lp-fb-row--loading,
.lp-fb-row--empty {
    color: var(--text-muted);
    cursor: default;
    font-style: italic;
}
.lp-fb-row--error {
    color: var(--status-warning, var(--text-muted));
    cursor: default;
    white-space: normal; /* refusal copy must wrap, not truncate */
}

.lp-fb-caret {
    flex: 0 0 auto;
    width: 12px;
    text-align: center;
    font-size: 10px;
    color: var(--text-muted);
}
.lp-fb-caret--none { visibility: hidden; }

.lp-fb-icon { flex: 0 0 auto; font-size: 13px; }
.lp-fb-name { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; }
.lp-fb-meta {
    flex: 0 0 auto;
    font-size: 11px;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0 6px;
}

.lp-fb-inline-create {
    display: flex;
    gap: 6px;
    cursor: default;
}
.lp-fb-inline-create[hidden] { display: none; }
.lp-fb-create-input {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 12px;
    padding: 2px 6px;
    background: var(--bg-surface, var(--bg-panel));
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
}
.lp-fb-create-btn,
.lp-fb-add-mount,
.lp-fb-dialog-cancel,
.lp-fb-dialog-confirm {
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--bg-surface, var(--bg-panel));
    color: var(--text-primary);
    cursor: pointer;
}
.lp-fb-create-btn:disabled,
.lp-fb-dialog-confirm:disabled { opacity: 0.5; cursor: default; }
.lp-fb-dialog-confirm {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

.lp-fb-add-mount {
    display: block;
    margin: 6px 10px 10px;
    text-align: left;
}
.lp-fb-add-mount[hidden] { display: none; }

.lp-fb-dialog-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: min(440px, 80vw);
}
.lp-fb-dialog-body .lp-fb { max-height: min(420px, 60vh); }
.lp-fb-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}
.lp-fb-dialog-actions[hidden] { display: none; }