/* KGOSS Station Builder (game.html, game.js). The assembly area is always deep space, in both themes,
   matching the exported image; the controls around it follow the site theme. */

.builder {
    display: grid;
    gap: 1rem;
}

.builder-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.builder-hint {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.builder-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.builder .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.builder-body {
    display: grid;
    grid-template-columns: 190px 1fr;
    gap: 1rem;
    align-items: start;
}

.builder-palette {
    display: grid;
    gap: 0.5rem;
}

.builder-part {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font: inherit;
    font-size: 0.85rem;
    text-align: left;
    cursor: grab;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.builder-part:hover {
    border-color: var(--accent);
}

.builder-part:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.builder-part svg {
    flex-shrink: 0;
    width: 52px;
    height: 34px;
}

.builder-part-name {
    line-height: 1.25;
}

.builder-part-short {
    display: none;
}

.builder-stage {
    position: relative;
    aspect-ratio: 10 / 7;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: linear-gradient(160deg, #0b1220, #111a2e);
}

.builder-canvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.gm-module {
    cursor: grab;
}

.gm-module:focus {
    outline: none;
}

.gm-module.dragging {
    cursor: grabbing;
}

.gm-select {
    fill: none;
    stroke: #60a5fa;
    stroke-width: 2;
    stroke-dasharray: 6 4;
    pointer-events: none;
}

.gm-module.invalid .gm-art {
    opacity: 0.55;
}

.gm-module.invalid .gm-select,
.gm-module.invalid .gm-outline {
    stroke: #f87171;
}

.gm-outline {
    fill: none;
    stroke: transparent;
    stroke-width: 2;
    pointer-events: none;
}

.gm-port {
    fill: #0b1220;
    stroke: #7dd3fc;
    stroke-width: 2;
    pointer-events: none;
}

.gm-port.target {
    fill: #7dd3fc;
}

.builder-selection {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    display: flex;
    gap: 0.4rem;
}

.builder-selection[hidden],
.builder-result[hidden] {
    display: none;
}

.builder-tool {
    padding: 0.3rem 0.7rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    background: rgba(11, 18, 32, 0.85);
    color: #e5e7eb;
    font: inherit;
    font-size: 0.8rem;
    cursor: pointer;
}

.builder-tool:hover,
.builder-tool:focus-visible {
    border-color: #7dd3fc;
}

.builder-trash {
    position: absolute;
    left: 0.6rem;
    bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.7rem;
    border: 1px dashed rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    color: #cbd5e1;
    font-size: 0.8rem;
    pointer-events: none;
}

.builder-trash svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.builder-trash.armed {
    border-style: solid;
    border-color: #f87171;
    background: rgba(248, 113, 113, 0.18);
    color: #fecaca;
}

.builder-status {
    min-height: 1.5em;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.builder-status.error {
    color: var(--danger);
}

.builder-result {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
    gap: 1.25rem;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
}

.builder-preview {
    display: block;
    justify-self: center;
    max-width: 100%;
    max-height: 420px;
    border-radius: 6px;
}

.builder-result-title {
    margin: 0 0 0.25rem;
    font-weight: 600;
}

.builder-result-note {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.builder-result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.9rem 0 0.6rem;
}

@media (max-width: 760px) {
    .builder-body {
        grid-template-columns: 1fr;
    }

    .builder-palette {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 0.35rem;
    }

    .builder-part {
        flex-direction: column;
        gap: 0.2rem;
        padding: 0.4rem 0.2rem;
        font-size: 0.72rem;
        text-align: center;
    }

    .builder-part svg {
        width: 44px;
        height: 28px;
    }

    .builder-part-name {
        display: none;
    }

    .builder-part-short {
        display: block;
    }

    .builder-trash span {
        display: none;
    }

    .builder-result {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 420px) {
    .builder-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .builder-actions {
        justify-content: flex-end;
    }
}