.inv-sec-title {
    font-family: 'Press Start 2P', monospace;
    font-size: 7px;
    color: var(--pink);
    margin-bottom: 7px;
}

.inv-bg-grid {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.inv-bg-item {
    border: 3px solid var(--dark);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
    width: 78px;
    height: 48px;
    transition: transform .15s;
    flex-shrink: 0;
}

.inv-bg-item:hover {
    transform: scale(1.05);
}

.inv-bg-item.active {
    border-color: var(--pink);
    box-shadow: 0 0 0 2px var(--pink);
}

.inv-bg-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.inv-bg-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, .55);
    font-family: 'Press Start 2P', monospace;
    font-size: 4px;
    color: white;
    text-align: center;
    padding: 2px;
}

.inv-locked {
    opacity: .35;
    cursor: not-allowed;
    filter: grayscale(70%);
}

.inv-lock-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
}

.inv-reward-item {
    background: white;
    border: 2px solid var(--dark);
    border-radius: 8px;
    padding: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.inv-reward-icon {
    font-size: 18px;
}

.inv-reward-name {
    font-family: 'Press Start 2P', monospace;
    font-size: 6px;
    color: var(--dark);
}

.inv-reward-code {
    font-family: 'Press Start 2P', monospace;
    font-size: 6px;
    color: var(--pink);
    margin-top: 2px;
}

.inv-empty {
    font-family: 'Press Start 2P', monospace;
    font-size: 6px;
    color: #aaa;
    text-align: center;
    padding: 12px;
    line-height: 1.8;
}