/* =========================================================
   Site Explorer (Finder-like) – baseline styling
   Ships as a static asset from template pack.

   Goals:
   - Clean Apple/Finder vibe
   - Works with Bootstrap 5.3
   - Safe defaults without relying on exact markup
   ========================================================= */

:root {
    --se-bg: var(--bs-body-bg, #fff);
    --se-surface: rgba(0,0,0,0.02);
    --se-border: rgba(0,0,0,0.08);
    --se-border-strong: rgba(0,0,0,0.14);
    --se-text-muted: rgba(0,0,0,0.55);
    --se-accent: var(--bs-primary, #0d6efd);
    --se-hover: rgba(0,0,0,0.04);
    --se-selected: rgba(13,110,253,0.10);
    --se-selected-strong: rgba(13,110,253,0.18);
    --se-radius-sm: 8px;
    --se-radius: 12px;
    --se-radius-lg: 16px;
    --se-row-h: 34px;
    --se-icon-w: 18px;
    --se-shadow-soft: 0 8px 18px rgba(0,0,0,0.06);
}

/* Dark theme tuning (Bootstrap data-bs-theme="dark") */
html[data-bs-theme="dark"] {
    --se-surface: rgba(255,255,255,0.04);
    --se-border: rgba(255,255,255,0.10);
    --se-border-strong: rgba(255,255,255,0.18);
    --se-text-muted: rgba(255,255,255,0.60);
    --se-hover: rgba(255,255,255,0.06);
    --se-selected: rgba(13,110,253,0.18);
    --se-selected-strong: rgba(13,110,253,0.26);
    --se-shadow-soft: 0 8px 18px rgba(0,0,0,0.30);
}

/* Root container */
.site-explorer-root,
#site-explorer-root {
    background: var(--se-bg);
}

/* Header bar inside Site Explorer pages */
.site-explorer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem 1rem;
    border: 1px solid var(--se-border);
    border-radius: var(--se-radius);
    background: var(--se-surface);
    box-shadow: var(--se-shadow-soft);
}

    .site-explorer-header .title {
        font-weight: 600;
        font-size: 1.05rem;
        margin: 0;
    }

    .site-explorer-header .subtitle {
        color: var(--se-text-muted);
        font-size: .9rem;
    }

/* Layout shell for Finder columns */
.site-explorer-shell {
    margin-top: 1rem;
    border: 1px solid var(--se-border);
    border-radius: var(--se-radius-lg);
    overflow: hidden;
    background: var(--se-bg);
}

/* Toolbar (optional) */
.site-explorer-toolbar {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .75rem;
    border-bottom: 1px solid var(--se-border);
    background: var(--se-surface);
}

/* Columns region */
.site-explorer-columns {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(220px, 280px);
    height: clamp(360px, 65vh, 760px);
    overflow-x: auto;
    overflow-y: hidden;
    background: linear-gradient( to right, var(--se-bg), var(--se-bg) );
}

/* Individual column */
.site-explorer-col {
    border-right: 1px solid var(--se-border);
    background: var(--se-bg);
    display: flex;
    flex-direction: column;
    min-width: 220px;
}

    .site-explorer-col:last-child {
        border-right: none;
    }

/* Column header */
.site-explorer-col__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: .55rem .75rem;
    border-bottom: 1px solid var(--se-border);
    background: var(--se-surface);
    font-weight: 600;
    font-size: .92rem;
}

    .site-explorer-col__header .muted {
        font-weight: 400;
        color: var(--se-text-muted);
        font-size: .85rem;
    }

/* Column body list */
.site-explorer-list {
    padding: .25rem;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Row */
.site-explorer-item {
    display: flex;
    align-items: center;
    gap: .4rem;
    height: var(--se-row-h);
    padding: 0 .5rem;
    border-radius: var(--se-radius-sm);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

    .site-explorer-item:hover {
        background: var(--se-hover);
    }

    .site-explorer-item.is-selected {
        background: var(--se-selected);
        outline: 1px solid var(--se-selected-strong);
    }

    .site-explorer-item .name {
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        font-size: .92rem;
    }

    .site-explorer-item .meta {
        color: var(--se-text-muted);
        font-size: .78rem;
    }

    /* Icons */
    .site-explorer-item .ico {
        width: var(--se-icon-w);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        opacity: .85;
    }

    /* Drag states */
    .site-explorer-item[draggable="true"] {
        cursor: grab;
    }

    .site-explorer-item.is-dragging {
        opacity: .55;
    }

    .site-explorer-item.is-drop-target {
        background: var(--se-selected-strong);
        outline: 1px dashed var(--se-accent);
    }

/* "Empty column" state */
.site-explorer-empty {
    padding: 1rem;
    color: var(--se-text-muted);
    font-size: .9rem;
}

/* Right-side preview panel (optional) */
.site-explorer-preview {
    border-left: 1px solid var(--se-border);
    background: var(--se-surface);
    padding: 1rem;
}

/* Small status pill */
.se-pill {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .15rem .5rem;
    border-radius: 999px;
    font-size: .75rem;
    border: 1px solid var(--se-border);
    background: var(--se-surface);
    color: var(--se-text-muted);
}

/* Modal form helpers */
.se-form-row {
    display: grid;
    gap: .35rem;
    margin-bottom: .75rem;
}

    .se-form-row label {
        font-size: .85rem;
        color: var(--se-text-muted);
    }

/* Mobile fallback */
@media (max-width: 768px) {
    .site-explorer-columns {
        grid-auto-columns: minmax(200px, 85vw);
        height: clamp(300px, 60vh, 640px);
    }
}

/* Utility: avoid cramped layout inside PageBuilder runtime container */
#pb-runtime-root .site-explorer-shell {
    margin-top: .5rem;
}

/* =========================================================
   SB-specific Site Explorer rules (from template view)
   ========================================================= */

.sb-page-arrow {
    font-size: 1.1rem;
    line-height: 1;
    opacity: 0.6;
    margin-left: 0.25rem;
}

.sb-drag-handle {
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    padding-right: .45rem;
    opacity: .55;
    font-weight: 700;
}

    .sb-drag-handle:active {
        cursor: grabbing;
    }

.sb-drop-hover {
    outline: 2px dashed rgba(0,0,0,.15);
    outline-offset: -2px;
}

.sb-col {
    min-width: 220px;
    max-width: 260px;
}

.sb-row {
    gap: .25rem;
}

#sb-pages-error {
    word-break: break-word;
}

.sb-home-pinned .list-group-item {
    background: rgba(0,0,0,.02);
}