.quiz-container {
    background-color: rgba(26, 26, 46, 0.8);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.start-screen {
    text-align: center;
    padding: 40px 20px;
}

.start-screen h2 {
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.question-container {
    margin-bottom: 20px;
}

.question-text {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.options-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.option-btn {
    background-color: rgba(74, 68, 206, 0.2);
    border: 1px solid var(--primary-color);
    color: var(--light-color);
    padding: 12px;
    border-radius: 5px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.option-btn:hover {
    background-color: rgba(74, 68, 206, 0.4);
}

.option-btn.correct {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.option-btn.incorrect {
    background-color: var(--error-color);
    border-color: var(--error-color);
}

/* Remove any duplicate .feedback-modal or .modal-content rules */
.feedback-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.feedback-modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--darker-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--box-shadow);
    position: relative;
    z-index: 1001;
}

.progress-container {
    margin-top: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    height: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--secondary-color);
    width: 0%;
    transition: width 0.3s ease;
}