.claw-tank {
    background: #fff;
    border: 1px solid #444;
    border-radius: 20px;
    min-height: 160px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    align-items: center;
    justify-items: center;
    gap: 5px;
    padding: 10px;
    position: relative;
}

@media (min-width: 576px) {
    .claw-tank {
        grid-template-columns: repeat(8, 1fr);
        padding: 15px;
    }
}

.toy-capsule {
    font-size: 2.4rem;
    display: inline-block;
    transition: transform 0.3s ease;
    animation: bounce 4s infinite alternate;
}

@media (min-width: 576px) {
    .toy-capsule {
        font-size: 3.6rem;
    }
}

.vocab-btn {
    background-color: #FFFFFF !important;
    color: #333333 !important;
    border: 1px solid #E0E0E0 !important;
    border-radius: 12px !important;
    font-weight: 700 !important;
    font-size: 1.1rem !important;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    padding: 12px 8px !important;
}

    /* Hover State - Clean deep blue pop */
    .vocab-btn:hover {
        border-color: #4A90E2 !important;
        color: #1A549B !important;
        transform: translateY(-2px);
        box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
    }

    /* Active Push Down click state */
    .vocab-btn:active {
        transform: translateY(1px) !important;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
    }

    /* Dynamic State: Correct Answer (Light Green) */
    .vocab-btn.btn-correct {
        background-color: #E8F5E9 !important;
        color: #2E7D32 !important;
        border-color: #81C784 !important;
        box-shadow: 0 0 0 3px rgba(129, 199, 132, 0.4) !important;
    }

    /* Dynamic State: Wrong Answer (Light Red) */
    .vocab-btn.btn-wrong {
        background-color: #FFEBEE !important;
        color: #C62828 !important;
        border-color: #E57373 !important;
        box-shadow: 0 0 0 3px rgba(229, 115, 115, 0.4) !important;
    }

.feedback-banner {
    display: none;
    font-size: 1.1rem;
    border-radius: 12px;
}

@keyframes bounce {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(-8px);
    }
}