.entity-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

.entity {
    position: absolute;
    width: var(--cell-size);
    height: var(--cell-size);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: top 0.3s, left 0.3s;
}

.entity-inner {
    width: 80%;
    height: 80%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
    position: relative;
    z-index: 2;
}

.survivor .entity-inner {
    background: #1e293b;
    border: 2px solid #60a5fa;
    color: white;
}

.survivor.selected .entity-inner {
    background: #581c87;
    border-color: #facc15;
    box-shadow: 0 0 10px #facc15;
}

.survivor.dead {
    filter: grayscale(1);
    opacity: 0.5;
}

.enemy .entity-inner {
    background: transparent;
}

.hp-bar {
    position: absolute;
    top: -5px;
    left: 0;
    width: 100%;
    height: 4px;
    background: #333;
}

.hp-fill {
    height: 100%;
    background: var(--accent-red);
}

.survivor .hp-fill { background: #06b6d4; }

/* Footprint Layer */
.footprint-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 4;
}

.footprint-marker {
    position: absolute;
    width: var(--cell-size);
    height: var(--cell-size);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.footprint-marker svg {
    width: 60%;
    height: 60%;
    filter: drop-shadow(0 0 1px black);
}

.footprint-marker.survivor {
    color: #3b82f6;
    opacity: 0.7;
}

.footprint-marker.enemy {
    color: #ef4444;
    opacity: 0.7;
}