body {
    font-family: 'Vazirmatn', sans-serif;
}

.time-btn {
    background-color: #374151;
    border: 2px solid #3b82f6;
    color: white;
    padding: 1rem;
    border-radius: 0.75rem;
    font-weight: 500;
    font-size: 1.125rem;
    transition: all 0.2s;
    cursor: pointer;
}

.time-btn:hover {
    background-color: #3b82f6;
    transform: translateY(-2px);
}

.nav-btn {
    background-color: #374151;
    border: 2px solid #3b82f6;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 0.75rem;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-btn:hover:not(:disabled) {
    background-color: #3b82f6;
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.action-btn {
    background-color: #3b82f6;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: bold;
    font-size: 1.125rem;
    width: 100%;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.action-btn:hover {
    background-color: #2563eb;
    transform: translateY(-2px);
}

.choice-btn {
    width: 100%;
    text-align: right;
    padding: 1rem;
    border-radius: 0.75rem;
    border: 2px solid #4b5563;
    background-color: #374151;
    color: white;
    transition: all 0.2s;
    font-size: 1rem;
    cursor: pointer;
}

.choice-btn:hover:not(:disabled) {
    background-color: #4b5563;
}

.choice-btn.correct {
    background-color: #10b981;
    border-color: #10b981;
    color: white;
}

.choice-btn.wrong {
    background-color: #ef4444;
    border-color: #ef4444;
    color: white;
}

.choice-btn:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.hidden {
    display: none !important;
}

.review-item {
    background-color: #374151;
    padding: 1rem;
    border-radius: 0.75rem;
    border: 1px solid #4b5563;
}

.review-correct {
    border-color: #10b981;
}

.review-wrong {
    border-color: #ef4444;
}