/* Trang danh sách đề, làm bài, kết quả, lịch sử */

/* Danh sách đề (dùng lại quiz-grid từ home – định nghĩa ở đây để list.php không cần home.css) */
.quiz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.quiz-card {
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.quiz-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}

.quiz-card .quiz-meta {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.quiz-card .quiz-meta span {
    margin-right: 16px;
}

/* Làm bài */
.quiz-do h1 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.quiz-info {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.timer {
    background: var(--primary);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius);
    display: inline-block;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 24px;
}

.question-block {
    background: var(--white);
    padding: 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.question-block h3 {
    font-size: 15px;
    font-weight: 500;
    margin: 0 0 16px;
    color: var(--text);
    line-height: 1.5;
}

.answers {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.answer-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    background: var(--white);
    transition: border-color 0.15s ease, background 0.15s ease;
}

.answer-option:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.answer-option input[type="radio"] {
    margin: 0;
    accent-color: var(--primary);
}

/* Kết quả */
.result-summary {
    max-width: 520px;
    margin-bottom: 32px;
}

.result-summary .card-body h2 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px;
}

.score-big {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 8px;
}

.result-details {
    margin-bottom: 24px;
}

.result-details h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.result-details .detail-item {
    margin-bottom: 12px;
}

.detail-item.correct {
    border-left: 4px solid var(--success);
}

.detail-item.incorrect {
    border-left: 4px solid var(--danger);
}

.detail-item .card-body p {
    margin: 0 0 4px;
    font-size: 14px;
}

.correct-ans {
    color: var(--success);
    font-weight: 500;
    font-size: 14px;
}