/* LayerFilterPanel — top-inline-end map overlay. Sits at top: 12px so it
   visually aligns with the AisLayerFilterPanel on the opposite top corner.
   In RTL the inset-inline-end token automatically flips to the visual
   left without any html[dir] override.
   WeatherChip (formerly stacked above this panel at top: 12px) was moved
   to bottom-inline-end so the two top corners stay reserved for the
   primary control surfaces. */

.ms-layer-filter {
    position: absolute;
    top: 12px;
    inset-inline-end: 12px;
    z-index: 5;
    display: flex;
    flex-direction: column;
    background: var(--ms-panel);
    border: 1px solid var(--ms-panel-border);
    color: var(--ms-text);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    pointer-events: auto;
    min-width: 168px;
    max-width: 240px;
}

/* ---- Header / collapse toggle ---- */

.ms-layer-filter-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--ms-panel-header);
    border: none;
    color: var(--ms-text);
    cursor: var(--ms-cursor-pointer);
    font-family: var(--ms-font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-align: start;
}
.ms-layer-filter-toggle:hover { filter: brightness(1.1); }
.ms-layer-filter.expanded .ms-layer-filter-toggle {
    border-bottom: 1px solid var(--ms-panel-border);
}
.ms-layer-filter-toggle-label { flex: 1; }
.ms-layer-filter-toggle-count {
    font-family: var(--ms-font-mono);
    font-size: 10px;
    color: var(--ms-text-dim);
    letter-spacing: 0.04em;
    text-transform: none;
}
.ms-layer-filter-toggle-total { color: var(--ms-text-mute); }

/* ---- Pills body ---- */

.ms-layer-filter-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

/* Expand/collapse-all controls (P6) — a thin row above the groups. */
.ms-layer-bulk {
    display: flex;
    gap: 6px;
    padding: 6px 8px 0;
}
.ms-layer-bulk-btn {
    flex: 1;
    background: none;
    border: 1px solid var(--ms-panel-border);
    color: var(--ms-text-dim);
    border-radius: 3px;
    padding: 3px 6px;
    font-size: 10px;
    font-family: var(--ms-font-mono);
    letter-spacing: 0.04em;
    cursor: var(--ms-cursor-pointer);
}
.ms-layer-bulk-btn:hover { color: var(--ms-accent); border-color: var(--ms-accent); }

.ms-layer-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    background: transparent;
    color: var(--ms-text-dim);
    border: 1px solid var(--ms-panel-border);
    border-radius: 4px;
    cursor: var(--ms-cursor-pointer);
    font-family: var(--ms-font-ui);
    font-size: 13px;
    line-height: 1.2;
    transition: background-color 100ms ease-out, border-color 100ms ease-out, color 100ms ease-out;
    text-align: start;
}
.ms-layer-pill:hover {
    border-color: var(--ms-text-dim);
    color: var(--ms-text);
}
.ms-layer-pill:focus-visible {
    outline: 2px solid var(--ms-accent);
    outline-offset: 1px;
}

.ms-layer-pill.active {
    /* color-mix gives a subtle accent tint without a second token; falls back
       cleanly to the panel header in browsers without color-mix support. */
    background: color-mix(in srgb, var(--ms-accent) 12%, var(--ms-panel-header));
    border-color: var(--ms-accent);
    color: var(--ms-text);
}
.ms-layer-pill.active .ms-layer-pill-icon { color: var(--ms-accent); }
.ms-layer-pill.active .ms-layer-pill-label { font-weight: 600; }

.ms-layer-pill-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ms-text-mute);
}
.ms-layer-pill:hover .ms-layer-pill-icon { color: var(--ms-text-dim); }

.ms-layer-pill-label {
    flex: 1;
    font-weight: 500;
    /* Arabic glyphs render slightly larger; Noto Sans Arabic handled in
       tokens.css per :root[lang|="ar"], no extra rule needed here. */
}

.ms-layer-pill-count {
    font-family: var(--ms-font-mono);
    font-size: 10px;
    color: var(--ms-text-mute);
    background: transparent;
    padding: 1px 5px;
    border: 1px solid var(--ms-panel-border);
    border-radius: 2px;
    min-width: 22px;
    text-align: end;
}
.ms-layer-pill.active .ms-layer-pill-count {
    border-color: var(--ms-accent);
    color: var(--ms-accent);
}

/* ---- Basemap style picker (sits above the layer pills) ---- */

.ms-basemap-picker {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    border-bottom: 1px solid var(--ms-panel-border);
}
.ms-basemap-picker-label {
    font-family: var(--ms-font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ms-text-dim);
}
.ms-basemap-picker-options {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.ms-basemap-chip {
    flex: 1 1 auto;
    padding: 4px 8px;
    background: transparent;
    color: var(--ms-text-dim);
    border: 1px solid var(--ms-panel-border);
    border-radius: 4px;
    cursor: var(--ms-cursor-pointer);
    font-family: var(--ms-font-ui);
    font-size: 12px;
    line-height: 1.2;
    white-space: nowrap;
    text-align: center;
    transition: background-color 100ms ease-out, border-color 100ms ease-out, color 100ms ease-out;
}
.ms-basemap-chip:hover {
    border-color: var(--ms-text-dim);
    color: var(--ms-text);
}
.ms-basemap-chip:focus-visible {
    outline: 2px solid var(--ms-accent);
    outline-offset: 1px;
}
.ms-basemap-chip.active {
    background: color-mix(in srgb, var(--ms-accent) 12%, var(--ms-panel-header));
    border-color: var(--ms-accent);
    color: var(--ms-text);
    font-weight: 600;
}

/* ---- Collapsed state: just the header chip ---- */

.ms-layer-filter.collapsed { min-width: auto; }

/* ---- Avoid colliding with the AIS sub-filter on narrow layouts ---- */

@media (max-width: 1280px) {
    .ms-layer-filter {
        top: auto;
        bottom: 12px;
        inset-inline-end: 12px;
    }
}

/* -- Basemap selector (operator-selectable map styles) ----------------------
   Sits above the layer pills inside the expanded panel. Mirrors the
   .ms-layer-pill visual language (same tokens) so the two groups read as one
   control surface. Chips wrap; the active chip uses the accent tint. */
.ms-basemap-picker {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 8px 6px;
    border-bottom: 1px solid var(--ms-panel-border);
}
.ms-basemap-picker-label {
    font-family: var(--ms-font-ui);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ms-text-mute);
}
.ms-basemap-picker-options {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.ms-basemap-chip {
    padding: 4px 10px;
    background: transparent;
    color: var(--ms-text-dim);
    border: 1px solid var(--ms-panel-border);
    border-radius: 4px;
    cursor: var(--ms-cursor-pointer);
    font-family: var(--ms-font-ui);
    font-size: 12px;
    font-weight: 500;
}
.ms-basemap-chip:hover {
    border-color: var(--ms-text-dim);
    color: var(--ms-text);
}
.ms-basemap-chip:focus-visible {
    outline: 2px solid var(--ms-accent);
    outline-offset: 1px;
}
.ms-basemap-chip.active {
    background: color-mix(in srgb, var(--ms-accent) 12%, var(--ms-panel-header));
    border-color: var(--ms-accent);
    color: var(--ms-text);
    font-weight: 600;
}

/* ---- collapsible layer groups (Tarek 2026-05-31) ---- */
.ms-layer-group-head {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    background: none;
    border: none;
    border-block-start: 1px solid var(--ms-panel-border);
    cursor: var(--ms-cursor-pointer);
    font-family: var(--ms-font-mono);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ms-text-mute);
    padding: 7px 2px 5px 2px;
    margin-block-start: 4px;
    text-align: start;
}
.ms-layer-group-head:hover { color: var(--ms-text); }
.ms-layer-group-head:focus-visible { outline: 2px solid var(--ms-accent); outline-offset: 1px; }
.ms-layer-group-arrow {
    display: inline-block;
    width: 0.8em;
    font-size: 10px;
    line-height: 1;
}
.ms-layer-group-label { flex: 1; }
.ms-layer-group-count {
    font-size: 9px;
    color: var(--ms-accent);
    font-variant-numeric: tabular-nums;
}
.ms-layer-group-count.dim { color: var(--ms-text-mute); }
.ms-layer-group-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding-block: 2px 4px;
}