/**
 * 公共区域样式
 */

/* 通用样式 */
.sag-container {
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.sag-section {
    margin-bottom: 20px;
}

.sag-title {
    margin-bottom: 15px;
    font-size: 1.5em;
    font-weight: bold;
}

.sag-subtitle {
    margin-bottom: 10px;
    font-size: 1.2em;
    font-weight: bold;
}

.sag-description {
    margin-bottom: 15px;
}

.sag-error {
    padding: 10px 15px;
    margin-bottom: 15px;
    border-left: 4px solid #dc3232;
    background-color: #f8d7da;
    color: #721c24;
}

.sag-success {
    padding: 10px 15px;
    margin-bottom: 15px;
    border-left: 4px solid #46b450;
    background-color: #d4edda;
    color: #155724;
}

.sag-info {
    padding: 10px 15px;
    margin-bottom: 15px;
    border-left: 4px solid #00a0d2;
    background-color: #d1ecf1;
    color: #0c5460;
}

.sag-warning {
    padding: 10px 15px;
    margin-bottom: 15px;
    border-left: 4px solid #ffb900;
    background-color: #fff3cd;
    color: #856404;
}

.sag-button {
    display: inline-block;
    padding: 8px 12px;
    background-color: #0073aa;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
}

.sag-button:hover {
    background-color: #005177;
    color: #fff;
    text-decoration: none;
}

.sag-button-secondary {
    background-color: #f7f7f7;
    color: #555;
    border: 1px solid #ccc;
}

.sag-button-secondary:hover {
    background-color: #e6e6e6;
    color: #555;
}

/* 作业列表 */
.sag-assignments-list {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.sag-assignments-list th,
.sag-assignments-list td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}

.sag-assignments-list th {
    background-color: #f7f7f7;
    font-weight: bold;
}

.sag-assignments-list tr:nth-child(even) {
    background-color: #f9f9f9;
}

.sag-assignments-list tr:hover {
    background-color: #f0f0f0;
}

.sag-status-badge {
    display: inline-block;
    padding: 3px 6px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
}

.sag-status-not-submitted {
    background-color: #f1f1f1;
    color: #777;
}

.sag-status-pending {
    background-color: #e5f5fa;
    color: #0073aa;
}

.sag-status-graded {
    background-color: #d4edda;
    color: #155724;
}

.sag-status-returned {
    background-color: #fff3cd;
    color: #856404;
}

/* 作业详情 */
.sag-assignment-details {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.sag-assignment-meta {
    margin-bottom: 15px;
}

.sag-assignment-meta-item {
    display: inline-block;
    margin-right: 15px;
    font-size: 14px;
    color: #666;
}

.sag-assignment-description {
    margin-bottom: 15px;
}

.sag-submission-summary {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #ddd;
}

.sag-grade {
    font-size: 1.2em;
    font-weight: bold;
    color: #155724;
}

/* 提交表单 */
.sag-submit-container {
    margin-top: 20px;
}

.sag-form-group {
    margin-bottom: 15px;
}

.sag-form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.sag-form-control {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.sag-form-help {
    margin-top: 5px;
    font-size: 12px;
    color: #666;
}

/* 文件预览样式 */
.sag-file-preview {
    margin: 15px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.sag-file-item {
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 4px;
    background: #f9f9f9;
    width: calc(33.333% - 10px);
    min-width: 200px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.sag-file-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 3px 5px rgba(0,0,0,0.15);
}

.sag-file-item img {
    max-width: 100%;
    height: auto;
    display: block;
    margin-bottom: 10px;
    border-radius: 3px;
}

.sag-file-icon {
    font-size: 48px;
    color: #2271b1;
    text-align: center;
    margin-bottom: 10px;
}

.sag-file-title {
    font-size: 14px;
    word-break: break-all;
}

.sag-file-container {
    margin-top: 10px;
}

.sag-file-info {
    margin-top: 5px;
    font-weight: bold;
}

#sag-file-error {
    color: #d63638;
    margin-top: 5px;
    display: none;
}

/* 音频录制 */
.sag-audio-recorder {
    margin-top: 15px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.sag-recording-controls {
    margin-bottom: 10px;
}

.sag-recording-indicator {
    display: none;
    color: #dc3232;
    font-weight: bold;
    margin: 10px 0;
}

.sag-recording-time {
    font-family: monospace;
    font-size: 16px;
    font-weight: bold;
    color: #dc3232;
    margin-left: 10px;
    display: inline-block;
    vertical-align: middle;
    background: rgba(220, 50, 50, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    border: 1px solid rgba(220, 50, 50, 0.3);
}

.sag-audio-preview {
    margin-top: 10px;
}

/* 音频预览布局样式 */
.sag-audio-controls-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.sag-audio-controls-container audio {
    flex: 1;
    max-width: 300px;
}

.sag-audio-controls-container .sag-button {
    flex-shrink: 0;
}



/* 提交详情 */
.sag-submission-details {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.sag-submission-meta {
    margin-bottom: 15px;
}

.sag-submission-meta-item {
    display: inline-block;
    margin-right: 15px;
    font-size: 14px;
    color: #666;
}

.sag-submission-content {
    margin-bottom: 15px;
}

.sag-submission-file {
    margin-bottom: 15px;
}

.sag-submission-file a {
    display: inline-block;
    padding: 5px 10px;
    background-color: #f7f7f7;
    border: 1px solid #ddd;
    border-radius: 3px;
    text-decoration: none;
    color: #555;
}

.sag-submission-file a:hover {
    background-color: #e6e6e6;
}

.sag-feedback {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}

.sag-feedback-content {
    margin-bottom: 15px;
}

.sag-feedback-file {
    margin-bottom: 15px;
}

.sag-feedback-grade {
    margin-bottom: 15px;
    font-size: 1.2em;
    font-weight: bold;
}

/* 提交历史 */
.sag-submission-history {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.sag-submission-history th,
.sag-submission-history td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}

.sag-submission-history th {
    background-color: #f7f7f7;
    font-weight: bold;
}

.sag-submission-history tr:nth-child(even) {
    background-color: #f9f9f9;
}

.sag-submission-history tr:hover {
    background-color: #f0f0f0;
}

/* 学生成绩 */
.sag-grades-container {
    margin-bottom: 20px;
}

.sag-grades-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.sag-grades-table th,
.sag-grades-table td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}

.sag-grades-table th {
    background-color: #f7f7f7;
    font-weight: bold;
}

.sag-grades-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.sag-grades-table tr:hover {
    background-color: #f0f0f0;
}

.sag-course-average {
    margin-top: 15px;
    font-size: 1.2em;
    font-weight: bold;
}

/* 响应式调整 */
@media screen and (max-width: 600px) {
    .sag-assignments-list,
    .sag-submission-history,
    .sag-grades-table {
        display: block;
        overflow-x: auto;
    }
    
    .sag-assignment-meta-item,
    .sag-submission-meta-item {
        display: block;
        margin-bottom: 5px;
    }

    /* 批改页面响应式调整 */
    .sag-grade-container {
        flex-direction: column;
    }

    .sag-grade-submission-info,
    .sag-grade-form-container {
        flex: 1 1 100%;
        min-width: 100%;
    }

    .sag-grade-form-container {
        margin-top: 20px;
    }

    .sag-form-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .sag-form-buttons a,
    .sag-form-buttons button {
        width: 100%;
        text-align: center;
    }

    .sag-submission-image {
        max-width: 100%;
    }

    /* 调整表单元素在手机上的宽度 */
    .sag-grade-field-group input[type="number"],
    .sag-grade-field-group select {
        width: 100%;
        max-width: 100%;
    }
    
    /* 文件上传优化 */
    .sag-file-upload {
        padding: 12px;
    }
    
    .sag-file-upload-label {
        padding: 10px;
        font-size: 14px;
    }
    
    /* 触摸友好的按钮 */
    .sag-button,
    button.sag-button,
    input[type="submit"].sag-button {
        padding: 12px 16px;
        min-height: 44px; /* 触摸友好的最小高度 */
        font-size: 16px; /* 更容易点击的字体大小 */
    }
    
    /* 改进表单布局 */
    .sag-form-field {
        margin-bottom: 16px;
    }
    
    /* 语音录制控件优化 */
    .sag-audio-controls button {
        min-width: 44px;
        min-height: 44px;
        margin: 0 5px;
    }
}

/* 添加更小屏幕的适配 */
@media screen and (max-width: 480px) {
    .sag-grade-info-box {
        padding: 10px;
    }
    
    /* 极小屏幕下的优化 */
    .sag-container {
        padding: 10px;
    }
    
    /* 改进移动端表格 */
    .sag-responsive-table {
        border: 0;
    }
    
    .sag-responsive-table thead {
        display: none; /* 隐藏表头 */
    }
    
    .sag-responsive-table tr {
        display: block;
        margin-bottom: 15px;
        border: 1px solid #ddd;
    }
    
    .sag-responsive-table td {
        display: block;
        text-align: right;
        padding: 10px;
        position: relative;
        border-bottom: 1px solid #eee;
    }
    
    .sag-responsive-table td:before {
        content: attr(data-label);
        position: absolute;
        left: 10px;
        top: 10px;
        font-weight: bold;
    }
    
    /* 移动优化音频播放器 */
    .sag-audio-player {
        width: 100%;
    }
}

/* 提交详情页面文件网格 */
.sag-files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 15px 0;
}

.sag-file-section .sag-file-item {
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.2s ease;
}

.sag-file-section .sag-file-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sag-file-section .sag-file-preview {
    padding: 10px;
    background: #f9f9f9;
    text-align: center;
}

.sag-file-section .sag-file-preview img {
    max-width: 100%;
    max-height: 200px;
    display: block;
    margin: 0 auto;
}

.sag-file-section .sag-file-name {
    padding: 10px;
    font-weight: bold;
    word-break: break-all;
    text-align: center;
}

.sag-file-section .sag-file-actions {
    display: flex;
    background: #f0f0f0;
    border-top: 1px solid #ddd;
}

.sag-file-section .sag-view-link,
.sag-file-section .sag-download-link {
    flex: 1;
    padding: 8px 12px;
    text-align: center;
    text-decoration: none;
    color: #2271b1;
    font-weight: 600;
    transition: background 0.2s;
}

.sag-file-section .sag-view-link:hover,
.sag-file-section .sag-download-link:hover {
    background: #e0e0e0;
    color: #135e96;
}

.sag-file-section .sag-view-link {
    border-right: 1px solid #ddd;
}

/* 自适应文本框样式 */
.sag-autosize-textarea {
    width: 100%;
    min-height: 150px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sag-autosize-textarea:focus {
    border-color: #2271b1;
    box-shadow: 0 0 0 1px #2271b1;
    outline: none;
}

/* 移动设备响应式样式 */
@media screen and (max-width: 768px) {
    .sag-container {
        padding: 10px;
    }
    
    .sag-form-field {
        margin-bottom: 15px;
    }
    
    .sag-file-upload-label {
        padding: 8px;
    }
    
    .sag-button {
        width: 100%;
        margin-bottom: 8px;
    }
    
    .sag-audio-controls {
        flex-direction: column;
    }
    
    .sag-audio-controls button {
        margin-bottom: 8px;
    }
    
    .sag-assignment-meta {
        flex-direction: column;
    }
    
    .sag-submission-meta {
        flex-direction: column;
    }
    
    .sag-tab-content {
        padding: 10px;
    }
}