.battle-container {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 20px 0;
}

.canvas-wrapper {
    position: relative;
    border: 1px solid var(--control-outline);
    background: #fff;
    image-rendering: crisp-edges;
    flex: 2;
    min-width: 0;
}

#pixel-canvas {
    display: block;
    width: 100%;
    height: auto;
    image-rendering: pixelated;
    cursor: crosshair;
}

.canvas-info {
    display: flex;
    justify-content: space-between;
    padding: 4px 8px;
    background: var(--control-bg);
    border-top: 1px solid var(--control-outline);
    font-size: 12px;
}

.timer.ready {
    color: #2e7d32;
    font-weight: bold;
}

.timer.waiting {
    color: #b71c1c;
}

.controls {
    flex: 1;
    min-width: 160px;
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}

.color-swatch-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--control-outline);
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.1s;
}

.color-swatch-btn:hover {
    transform: scale(1.1);
    border-color: var(--text-accent);
}

.color-swatch-btn.selected {
    border: 3px solid var(--text-accent);
    box-shadow: 0 0 0 2px var(--bg);
}

.message {
    margin-top: 12px;
    min-height: 24px;
    color: var(--text-secondary);
}

.message.error {
    color: #b71c1c;
}

.activity-list {
    list-style: none;
    padding: 0;
    margin: 8px 0;
    max-height: 150px;
    overflow-y: auto;
    border: 1px solid var(--control-outline);
    background: var(--control-bg);
    border-radius: 4px;
    padding: 8px;
}

.activity-list li {
    font-size: 12px;
    padding: 2px 0;
    border-bottom: 1px dotted var(--text-secondary);
}

.activity-list li:last-child {
    border-bottom: none;
}