/**
 * 出题系统组件样式
 */

.problem-posing {
    width: 100%;
}

.problem-posing-header {
    margin-bottom: 30px;
    text-align: center;
}

.problem-posing-header h3 {
    font-size: 1.8rem;
    margin-bottom: 12px;
    color: var(--ls-text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.problem-posing-header h3 i {
    color: var(--ls-primary);
}

.problem-posing-desc {
    color: var(--ls-text-secondary);
    font-size: 1rem;
}

.posing-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.step {
    background: var(--ls-bg-secondary);
    border-radius: var(--ls-radius-lg);
    padding: 30px;
    border-left: 4px solid var(--ls-border-color);
    transition: var(--ls-transition);
    opacity: 0.5;
}

.step.active {
    opacity: 1;
    border-left-color: var(--ls-primary);
    box-shadow: var(--ls-shadow-md);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--ls-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    flex-shrink: 0;
}

.step-header h4 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--ls-text-primary);
}

.step-content {
    color: var(--ls-text-primary);
}

/* 第1步：知识点选择 */
.kp-selection p {
    margin-bottom: 20px;
    color: var(--ls-text-secondary);
}

.kp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kp-card {
    background: var(--ls-bg-primary);
    border: 2px solid var(--ls-border-color);
    border-radius: var(--ls-radius-md);
    padding: 16px;
    cursor: pointer;
    transition: var(--ls-transition);
    display: flex;
    align-items: start;
    gap: 12px;
}

.kp-card:hover {
    border-color: var(--ls-primary);
    transform: translateY(-2px);
}

.kp-card.selected {
    border-color: var(--ls-primary);
    background: var(--ls-primary-light);
}

.kp-card input[type="checkbox"] {
    margin-top: 4px;
    flex-shrink: 0;
}

.kp-card label {
    flex: 1;
    cursor: pointer;
}

.kp-card label strong {
    display: block;
    margin-bottom: 4px;
    color: var(--ls-text-primary);
}

.kp-card label .kp-type {
    font-size: 0.8rem;
    color: var(--ls-text-secondary);
    background: var(--ls-bg-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 8px;
}

.kp-card label p {
    font-size: 0.9rem;
    color: var(--ls-text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* 第2步：题目编辑器 */
.problem-editor {
    max-width: 800px;
}

.editor-field {
    margin-bottom: 24px;
}

.editor-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--ls-text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--ls-border-color);
    border-radius: var(--ls-radius-md);
    background: var(--ls-bg-primary);
    color: var(--ls-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--ls-transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--ls-primary);
    box-shadow: 0 0 0 3px var(--ls-primary-light);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.code-textarea {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
}

.editor-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.step-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 30px;
}

/* 第3步：质量评估 */
.evaluation-result {
    max-width: 700px;
}

.evaluation-score {
    text-align: center;
    margin-bottom: 40px;
}

.score-circle {
    width: 120px;
    height: 120px;
    border: 6px solid;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.score-circle span {
    font-size: 2.5rem;
    font-weight: 800;
}

.evaluation-details {
    margin-bottom: 30px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.detail-label {
    width: 120px;
    font-weight: 600;
    color: var(--ls-text-primary);
    flex-shrink: 0;
}

.detail-bar {
    flex: 1;
    height: 8px;
    background: var(--ls-bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.detail-fill {
    height: 100%;
    transition: width 0.3s ease;
}

.detail-value {
    width: 50px;
    text-align: right;
    font-weight: 600;
    color: var(--ls-text-primary);
    flex-shrink: 0;
}

.evaluation-feedback,
.evaluation-suggestions {
    background: var(--ls-bg-primary);
    padding: 20px;
    border-radius: var(--ls-radius-md);
    margin-bottom: 24px;
}

.evaluation-feedback h4,
.evaluation-suggestions h4 {
    margin: 0 0 16px 0;
    color: var(--ls-text-primary);
}

.feedback-item {
    display: flex;
    align-items: start;
    gap: 12px;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: var(--ls-radius-md);
    background: var(--ls-bg-secondary);
}

.feedback-item i {
    flex-shrink: 0;
    margin-top: 2px;
}

.feedback-success {
    border-left: 3px solid var(--ls-secondary);
}

.feedback-success i {
    color: var(--ls-secondary);
}

.feedback-warning {
    border-left: 3px solid var(--ls-accent);
}

.feedback-warning i {
    color: var(--ls-accent);
}

.feedback-error {
    border-left: 3px solid var(--ls-danger);
}

.feedback-error i {
    color: var(--ls-danger);
}

.feedback-suggestion {
    border-left: 3px solid var(--ls-primary);
}

.feedback-suggestion i {
    color: var(--ls-primary);
}

.evaluation-suggestions ul {
    margin: 0;
    padding-left: 20px;
    color: var(--ls-text-secondary);
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .kp-grid {
        grid-template-columns: 1fr;
    }

    .editor-row {
        grid-template-columns: 1fr;
    }

    .detail-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .detail-label {
        width: 100%;
    }

    .detail-bar {
        width: 100%;
    }
}