.sentence-box {
    font-size: 1.5rem;
    line-height: 2;
    margin: 2rem 0;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    border: 1px dashed rgba(139, 92, 246, 0.3);
}

.blank {
    display: inline-block;
    min-width: 120px;
    height: 40px;
    border-bottom: 3px solid var(--primary-color);
    margin: 0 10px;
    vertical-align: middle;
    transition: all 0.3s;
    text-align: center;
    color: var(--secondary-color);
    font-weight: bold;
}

.options-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.word-option {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    user-select: none;
}

.word-option:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

#feedback {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    min-height: 35px;
}

.correct-text { color: #10b981; }
.wrong-text { color: #ef4444; }

@media (max-width: 500px) {
    .sentence-box { font-size: 1.2rem; padding: 1rem; }
    .word-option { font-size: 1rem; padding: 0.6rem 1rem; }
}