/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
.header {
    background-color: #fff;
    border-radius: 8px;
    padding: 5px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 拖拽相关样式 */
.course-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.timetable-cell.drag-over {
    background-color: rgba(63, 81, 181, 0.1);
    outline: 2px dashed #3f51b5;
}

.header h1 {
    color: #3f51b5;
    margin-bottom: 0;
    text-align: center;
}
/* 控制按钮样式 */
.controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 20px 0;
    text-align: center;
}

/* 操作按钮容器 */
.action-buttons {
    display: flex;
    gap: 8px;
    flex: 1 1 auto;
    justify-content: center;
    flex-wrap: wrap;
    margin: 0;
}

/* 面板按钮样式 */
.panel-button {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
    min-width: 90px;
    font-weight: 500;
    background-color: #607d8b; /* 默认背景，确保未定义专用颜色的按钮可见 */
}

.panel-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    background-color: #546e7a; /* 默认悬停更深色 */
}

.panel-button:active {
    transform: translateY(0);
}

/* 保存按钮样式 - 蓝色 */
.save-button {
    background-color: #2196F3;
}

.save-button:hover {
    background-color: #0b7dda;
}

/* 加载按钮样式 - 绿色 */
.load-button {
    background-color: #4CAF50;
}

.load-button:hover {
    background-color: #3d8b40;
}

/* 清空按钮样式 - 红色 */
.clear-button {
    background-color: #f44336;
}

.clear-button:hover {
    background-color: #da190b;
}

/* 关闭按钮 */
.close-panel {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background-color: #f44336;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    z-index: 1001;
}

.close-panel:hover {
    background-color: #d32f2f;
}

.controls button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
    min-width: 120px;
}

.controls button:hover {
    background-color: #303f9f;
}

/* 主内容区域 */
.main-content {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

/* 课程表样式 */
.timetable-container {
    flex: 1;
    min-width: 500px;
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
/* 课程表样式 */
.timetable {
    width: 100%;
    border-collapse: collapse;
    max-height: 600px;
    overflow-y: auto;
    table-layout: fixed; /* 固定表格布局，确保列宽一致 */
}

.timetable th,
.timetable td {
    border: 1px solid #e0e0e0;
    padding: 8px;
    text-align: center;
    font-size: 23px;
    width: 14.28%; /* 7天，每天占约14.28%的宽度 */
    min-width: 100px;
    height: 80px;
    position: relative;
    word-wrap: break-word;
    word-break: normal; /* 正常的单词换行 */
    display: table-cell;
    vertical-align: middle;
}

/* 表头单元格特殊设置 */
.timetable th {
    width: 14.28%;
    min-width: 100px;
}

/* 课程名称样式 - 合并为一个定义，确保JavaScript可以正确设置字体大小 */
.course-name {
    font-size: inherit; /* 从父元素继承字体大小，允许JavaScript覆盖 */
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 2px;
    line-height: 1.2;
    font-weight: 500;
    margin-bottom: 0;
}

.timetable th {
    background-color: #3f51b5;
    color: white;
    font-weight: normal;
}

.timetable .section-cell {
    background-color: #f5f5f5;
    font-weight: bold;
    vertical-align: middle;
}

.timetable-cell {
    height: 80px;
    cursor: pointer;
    position: relative;
    vertical-align: middle;
}

.timetable-cell:hover:not(.has-course) {
    background-color: #e8eaf6;
}

.timetable-cell.has-course {
    /* 移除默认背景色，使用动态分配的课程背景色类 */
    background-color: transparent;
}

/* 课程背景色类 - 淡色系 */
.course-bg-1 {
    background-color: #e8f5e9;
}

.course-bg-2 {
    background-color: #e3f2fd;
}

.course-bg-3 {
    background-color: #e0f7fa;
}

.course-bg-4 {
    background-color: #e8f5e9;
}

.course-bg-5 {
    background-color: #fff3e0;
}

.course-bg-6 {
    background-color: #f3e5f5;
}

.course-bg-7 {
    background-color: #ede7f6;
}

.course-bg-8 {
    background-color: #f1f8e9;
}

.course-bg-9 {
    background-color: #fffde7;
}

.course-bg-10 {
    background-color: #fce4ec;
}

.remove-course {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.remove-course:hover {
    background-color: #d32f2f;
}

/* 课程面板 */
.course-panel {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    /* 优化高度：自适应内容，限定最大高度以便滚动 */
    height: auto;
    max-height: 60vh;
    background-color: #f5f5f5;
    border-top: 1px solid #ddd;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    display: block; /* 改为块元素，交由内部Grid布局 */
}

.course-panel.show {
    transform: translateY(0%);
}

/* 面板头部区域 */
.panel-header {
    /* 改为栅格布局以更清晰排布各功能块 */
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: auto;
    gap: 12px;
    align-items: start;
    margin-bottom: 15px;
    position: relative;
}
/* 标题占满一行 */
.course-panel h3 {
    color: #3f51b5;
    margin: 0;
    grid-column: 1 / -1;
}
/* 操作按钮置顶占满一行 */
.action-buttons {
    grid-column: 1 / -1;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin: 0;
}
/* 分享区：占满一行，作为保存区 */
.share-area {
    grid-column: 1 / -1;
    display: grid;
    /* 改为按内容宽度的列，使输入不再过长 */
    grid-template-columns: auto auto auto auto;
    gap: 8px;
    align-items: center;
}
/* 缩短分享相关输入框的默认宽度 */
.share-area input[type="text"] {
    width: 220px;
}
/* 分享口令稍短 */
#share-code-input {
    width: 180px;
}
/* 拥有者密钥与访问码适度宽一些 */
#owner-key-input, #access-key-input {
    width: 220px;
}
/* 说明文字占满一行，放在输入区域下方 */
.share-area .share-tip {
    grid-column: 1 / -1;
    line-height: 1.6;
}
/* 模板区：占满一行，位于课节数之后 */
.template-area {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 8px;
    align-items: center;
}
/* 课节数：占满一行，位于快速添加之后 */
.section-count-area {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 8px;
    align-items: center;
}
/* 快速添加与批量导入（左侧加号/减号） */
.quick-add-area {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto 1fr; /* 左侧操作按钮列 + 右侧内容列 */
    grid-template-rows: auto auto; /* 去掉批量导入行 */
    gap: 8px;
}
.panel-header .course-actions {
    /* 更新为横向排列，取消旧的网格定位 */
    margin-bottom: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
}
/* 输入与列表在右侧列（已移除quick-add显式定位，遵循默认布局） */
/* quick-add selectors positional overrides removed */
/* .bulk-area 已移除，不再定义网格定位 */
#bulk-import-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background-color: #fff;
    font-size: 14px;
}

#quick-add-input:focus,
#bulk-import-input:focus {
    outline: none;
    border-color: #3f51b5;
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.12);
}

#quick-add-input::placeholder,
#bulk-import-input::placeholder {
    color: #9aa4af;
}

.bulk-area {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    align-items: start;
}

.quick-add-list {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-height: 70px;
    overflow-y: auto;
}

.quick-add-list .quick-item {
    padding: 6px 10px;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    background-color: #fff;
    color: #374151;
    font-size: 13px;
    cursor: pointer;
}

.quick-add-list .quick-item:hover {
    background-color: #f3f4f6;
    border-color: #cfd8dc;
}

/* 课程列表与项 */
.course-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.course-item {
    position: relative;
    display: flex;
    align-items: center;
    padding: 8px 12px;
    margin: 4px 0;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    white-space: nowrap;
}

.course-item .delete-icon {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.course-item.show-delete .delete-icon {
    display: flex;
}

.course-item .delete-icon:hover {
    background-color: #d32f2f;
}

.course-item:hover {
    background-color: #e0e0e0;
    border-color: #4CAF50;
}

.course-item.selected {
    background-color: #4CAF50;
    color: white;
    border-color: #388E3C;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* 添加课程对话框 */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.dialog-overlay.show {
    display: flex;
}

.dialog {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 400px;
}

.dialog h3 {
    color: #3f51b5;
    margin-bottom: 15px;
    text-align: center;
}

.dialog input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    margin-bottom: 15px;
}
/* 新增：对话框内提示信息区域（预留高度） */
.dialog-message {
    min-height: 24px;
    margin: 6px 0 10px;
    font-size: 14px;
    line-height: 1.4;
}
.dialog-message.info { color: #374151; }
.dialog-message.success { color: #059669; }
.dialog-message.error { color: #dc2626; }

.dialog input:focus {
    outline: none;
    border-color: #3f51b5;
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.15);
}

.dialog-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.dialog-buttons button {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

#confirm-add {
    background-color: #4caf50;
    color: white;
}

#confirm-add:hover {
    background-color: #45a049;
}

#cancel-add {
    background-color: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
}

#cancel-add:hover {
    background-color: #e0e0e0;
}

#toggle-delete-icons {
    background-color: #f44336;
    color: white;
}

#toggle-delete-icons:hover {
    background-color: #d32f2f;
    transform: scale(1.1);
}

/* 自定义课程表单样式 */
.custom-course-form {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

.custom-course-form h4 {
    color: #3f51b5;
    margin-bottom: 10px;
}

.form-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group label {
    font-size: 14px;
    min-width: 70px;
}

.form-group input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group input:focus {
    outline: none;
    border-color: #3f51b5;
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.12);
}

.form-group button {
    padding: 8px 16px;
    border: none;
    background-color: #4caf50;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

.form-group button:hover {
    background-color: #45a049;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .timetable-container {
        min-width: auto;
    }
    
    /* 默认在手机端收起课程面板，只有添加.show类时展开 */
    .course-panel {
        width: calc(100% - 40px);
        position: static;
        max-height: none;
        display: none; /* 默认隐藏 */
    }
    .course-panel.show {
        display: block; /* 点击按钮展开 */
    }
    
    .timetable th,
    .timetable td {
        padding: 5px;
        font-size: 12px;
    }
    
    .course-name {
        font-size: 12px;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .controls button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .header {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 20px;
    }
    
    .timetable-container {
        padding: 10px;
    }
    
    .timetable th,
    .timetable td {
        padding: 3px;
        font-size: 10px;
    }
    
    .course-panel {
        padding: 15px;
        width: calc(100% - 20px);
    }
}

/* 打印样式 - 隐藏控制按钮并优化打印布局 */
@media print {
    .controls {
        display: none !important;
    }
    
    /* 减少标题和表格之间的空白 */
    .header {
        margin-bottom: 5px !important;
        padding: 10px !important;
    }
    
    /* 优化课程表容器的边距 */
    .timetable-container {
        padding: 10px !important;
        margin: 0 !important;
    }
    
    /* 确保主内容区域没有额外的底部边距 */
    .main-content {
        margin-bottom: 0 !important;
    }
}

/* 按钮颜色优化 */
.panel-button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    min-width: 100px;
    font-weight: 600;
    background-color: #607d8b;
}
.panel-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
/* 下载/导出：主色蓝 */
.download-button {
    background-color: #2563eb;
}
.download-button:hover {
    background-color: #1d4ed8;
}
/* 清空：危险红 */
.clear-button {
    background-color: #ef4444;
}
.clear-button:hover {
    background-color: #dc2626;
}
/* 分享保存：紫色 */
.share-save-button {
    background-color: #a855f7;
}
.share-save-button:hover {
    background-color: #7c3aed;
}
/* 分享加载：绿色（区分保存） */
.share-load-button {
    background-color: #10b981;
}
.share-load-button:hover {
    background-color: #059669;
}
/* 课程操作按钮（加号/减号）样式恢复并统一色板 */
.course-actions {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
}
.course-actions button {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#open-add-dialog {
    background-color: #10b981; /* 绿色：与share-load一致的成功色 */
    color: white;
}
#open-add-dialog:hover {
    background-color: #059669;
    transform: scale(1.05);
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
#toggle-delete-icons {
    background-color: #ef4444; /* 红色：与clear按钮一致的危险色 */
    color: white;
}
#toggle-delete-icons:hover {
    background-color: #dc2626;
    transform: scale(1.05);
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* 新增：科目容器与合并配置行/底部容器样式 */
.subject-container {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: start;
    grid-column: 1 / -1; /* 占满一行 */
}
.config-combo-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    grid-column: 1 / -1; /* 占满一行 */
}
.config-combo-row label {
    margin-right: 4px;
}
.final-actions {
    display: grid;
    gap: 12px;
    grid-column: 1 / -1; /* 作为最后一块，整行展示 */
}
/* 隐藏设置面板中的分享区（改用全局浮层） */
.panel-header .share-area { display: none; }
/* 提升分享浮层的层级，覆盖底部固定面板 */
#share-dialog.dialog-overlay { z-index: 1100; }