/* Battle Barge — shared Missions / Maps screen styling
   ================================================================
   Per-universe HH and TOW templates inside /app/missions emit the
   same `.tools-subtab*`, `.mission-section*`, `.maps-grid`, and
   `.map-card` classes as the legacy /hh and /tow apps. Per-universe
   CSS is not loaded by the unified shell, so without these rules the
   entire Missions screen renders as unstyled stacked text.
   ================================================================ */

/* Subtab bar — horizontal pill row at the top of the Missions screen */
.tools-subtab-bar {
    display: flex;
    gap: var(--bb-space-2);
    padding: var(--bb-space-3) var(--bb-space-4);
    border-bottom: 1px solid var(--bb-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.tools-subtab-bar::-webkit-scrollbar { display: none; }

.tools-subtab {
    flex: 0 0 auto;
    padding: var(--bb-space-2) var(--bb-space-4);
    background: transparent;
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-full);
    color: var(--bb-text-secondary);
    font-family: var(--bb-font-display);
    font-size: var(--bb-text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    white-space: nowrap;
    min-height: var(--bb-touch-min);
    transition: border-color var(--bb-transition-fast),
                color var(--bb-transition-fast),
                background var(--bb-transition-fast);
}
.tools-subtab:hover,
.tools-subtab:focus-visible {
    color: var(--bb-text-primary);
    border-color: var(--bb-accent-primary);
    outline: none;
}
.tools-subtab.active,
.tools-subtab[aria-selected="true"] {
    color: var(--bb-bg-base);
    background: var(--bb-accent-primary);
    border-color: var(--bb-accent-primary);
}

.tools-subtab-panel { padding: var(--bb-space-4); }

/* Section group — collapsible groupings of missions or maps */
.mission-section {
    margin-bottom: var(--bb-space-4);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-md);
    background: var(--bb-bg-surface);
    overflow: hidden;
}
.mission-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--bb-space-3) var(--bb-space-4);
    background: var(--bb-bg-elevated);
    cursor: pointer;
    user-select: none;
}
.mission-section-header h3 {
    margin: 0;
    font-family: var(--bb-font-display);
    font-size: var(--bb-text-sm);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--bb-text-primary);
}
.mission-section-toggle {
    color: var(--bb-text-secondary);
    font-size: var(--bb-text-xs);
    transition: transform var(--bb-transition-fast);
}
.mission-section.is-collapsed .mission-section-toggle { transform: rotate(-90deg); }
.mission-section-content {
    /* Multi-column grid so mission/map cards flow horizontally and wrap
       to new rows instead of stacking 1-up. Cards keep a FIXED width
       (260px) regardless of how much room is in the section — earlier
       draft used `1fr` and the cards stretched to fill the row, making
       a 3-card row look very different from a 6-card row. */
    display: grid;
    grid-template-columns: repeat(auto-fill, 260px);
    justify-content: start;
    gap: var(--bb-space-3);
    padding: var(--bb-space-3) var(--bb-space-4);
}
.mission-section.is-collapsed .mission-section-content { display: none; }

.mission-detail-row {
    margin: var(--bb-space-1) 0;
    color: var(--bb-text-secondary);
    font-size: var(--bb-text-sm);
    line-height: 1.45;
}
.mission-detail-row strong {
    color: var(--bb-text-primary);
    margin-right: var(--bb-space-1);
}

/* The top-level container holds CATEGORIES (.mission-section bars).
   These should stack one-per-row, full-width — the user explicitly
   does NOT want categories laid out as a multi-column grid. The grid
   layout below is for the CARDS *inside* each category. */
.maps-gallery {
    display: flex;
    flex-direction: column;
    gap: var(--bb-space-3);
}

/* Multi-column card grid — used by the maps render path for the cards
   INSIDE one category (`<div class="maps-grid">…cards…</div>`). Fixed
   260px tracks so cards stay the same size whether a category has 2
   entries or 12; otherwise auto-fit/`1fr` would stretch the cards in
   sparse categories and make Core Maps look bigger than supplements. */
.maps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 260px);
    justify-content: start;
    gap: var(--bb-space-3);
}

.mission-card,
.map-card {
    display: flex;
    flex-direction: column;
    gap: var(--bb-space-2);
    padding: var(--bb-space-3) var(--bb-space-4);
    background: var(--bb-bg-elevated);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-md);
    transition: border-color var(--bb-transition-fast);
}

.mission-card:hover,
.map-card:hover {
    border-color: var(--bb-accent-primary);
}
.mission-card.map-active,
.map-card.map-active {
    border-color: var(--bb-accent-primary);
    box-shadow: 0 0 0 1px var(--bb-accent-primary);
}

.map-active-badge,
.mission-source-tag {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bb-accent-primary);
    color: var(--bb-bg-base);
    border-radius: var(--bb-radius-sm);
    font-family: var(--bb-font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.mission-title,
.map-title {
    margin: 0;
    font-family: var(--bb-font-display);
    font-size: var(--bb-text-base);
    font-weight: 700;
    color: var(--bb-text-primary);
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: var(--bb-space-2);
    flex-wrap: wrap;
}

.map-image-container {
    background: var(--bb-bg-base);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-sm);
    aspect-ratio: 3 / 2;
    overflow: hidden;
}
.map-image,
.map-canvas-preview {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.mission-desc,
.map-desc {
    color: var(--bb-text-secondary);
    font-size: var(--bb-text-sm);
    line-height: 1.45;
}

.empty-state {
    padding: var(--bb-space-6) var(--bb-space-4);
    text-align: center;
    color: var(--bb-text-muted);
    background: var(--bb-bg-surface);
    border: 1px dashed var(--bb-border);
    border-radius: var(--bb-radius-md);
}

/* Allegiance pill row — used by TOW roster create dialog inside missions */
.allegiance-btn {
    flex: 1 1 auto;
    padding: var(--bb-space-2) var(--bb-space-3);
    background: var(--bb-bg-elevated);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-sm);
    color: var(--bb-text-secondary);
    font-family: var(--bb-font-display);
    font-size: var(--bb-text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
}
.allegiance-btn[aria-checked="true"],
.allegiance-btn.is-active {
    background: var(--bb-accent-primary);
    color: var(--bb-bg-base);
    border-color: var(--bb-accent-primary);
}

/* Map builder canvas */
.mb-canvas-wrap {
    margin: var(--bb-space-3) 0;
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-md);
    background: var(--bb-bg-base);
    padding: var(--bb-space-2);
}
.mb-canvas {
    display: block;
    width: 100%;
    height: auto;
    cursor: crosshair;
    image-rendering: pixelated;
}

/* TOW Missions screen — `_missions_tow.html` uses a two-column grid of
   bare h3 + list blocks. Without these rules the columns rendered as
   unstyled stacked text on the page background. Scoped to the TOW
   Missions screen mount via `[data-universe="tow"] #screen-mount` so
   the setup wizard's `#setup-missions-grid.missions-grid` (which has
   its own per-source full-width section layout) isn't affected. */
[data-universe="tow"] #screen-mount > .missions-grid,
[data-universe="tow"] #screen-mount .missions-grid:not(#setup-missions-grid) {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--bb-space-4);
    padding: var(--bb-space-4);
}
.missions-col {
    background: var(--bb-bg-surface);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-md);
    padding: var(--bb-space-4);
    display: flex;
    flex-direction: column;
    gap: var(--bb-space-3);
    box-shadow: var(--bb-shadow-sm);
}
.missions-col h3 {
    margin: 0;
    font-family: var(--bb-font-display);
    font-size: var(--bb-text-base);
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--bb-text-primary);
    text-transform: uppercase;
}
.missions-col h3 + * { margin-top: 0; }
.missions-col h3:not(:first-child) {
    padding-top: var(--bb-space-3);
    border-top: 1px solid var(--bb-border);
}
@media (max-width: 720px) {
    [data-universe="tow"] #screen-mount > .missions-grid,
    [data-universe="tow"] #screen-mount .missions-grid:not(#setup-missions-grid) {
        grid-template-columns: 1fr;
    }
}