/* ===================================================================
   实验笔记组件样式 - experiment-notes.css
   与现有 UI 风格（暖橘红色调）统一
=================================================================== */

.exp-notes-section {
    margin-top: 40px;
    background: #ffffff;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(216, 67, 21, 0.07);
    border-top: 4px solid #D84315;
}

.exp-notes-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.exp-notes-header-left {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.exp-notes-header h2 {
    margin: 0;
    color: #D84315;
    font-size: 1.4em;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.exp-notes-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

/* 未登录提示 */
.exp-notes-login-hint {
    font-size: 12px;
    color: #9E9E9E;
    margin: 0;
    font-style: italic;
}

.exp-notes-login-link {
    color: #D84315;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
    font-weight: 700;
}

.exp-notes-login-link:hover {
    color: #BF360C;
}

/* 全局状态消息 */
.exp-notes-global-status {
    font-size: 12px;
    color: #9E9E9E;
    margin: 0 0 12px 0;
    min-height: 18px;
    transition: color 0.3s;
}

.exp-notes-global-status.saving {
    color: #FF8F00;
}

.exp-notes-global-status.saved {
    color: #43A047;
}

.exp-notes-global-status.error {
    color: #E53935;
}

/* 笔记列表容器 */
.exp-notes-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 40px;
}

/* 空状态 - 添加笔记按钮居中 */
.exp-notes-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
    gap: 16px;
    border: 2px dashed #FFE0B2;
    border-radius: 12px;
    background: #FFFAF0;
    transition: border-color 0.2s;
}

.exp-notes-empty:hover {
    border-color: #FFCC80;
}

.exp-notes-empty p {
    margin: 0;
    color: #BCAAA4;
    font-size: 0.95em;
}

/* 笔记卡片 */
.exp-note-card {
    background: #FFFAF0;
    border: 1px solid #FFE0B2;
    border-radius: 12px;
    padding: 20px 22px 14px;
    position: relative;
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.exp-note-card:hover {
    box-shadow: 0 4px 14px rgba(216, 67, 21, 0.1);
}

.exp-note-card-header {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

/* 标题：编辑框与预览（MathJax）共用区域 */
.exp-note-title-wrap {
    flex: 1;
    min-width: 0;
}

.exp-note-title-render {
    font-size: 1.05em;
    font-weight: 700;
    color: #4E342E;
    line-height: 1.45;
    padding: 3px 4px;
    word-break: break-word;
}

.exp-note-title-render .MathJax,
.exp-note-title-render mjx-container {
    font-weight: 700;
    max-width: 100%;
    overflow-x: auto;
    display: inline-block;
    vertical-align: middle;
}

/* 标题输入框 - 隐藏边框风格，加粗 */
.exp-note-title-input {
    flex: 1;
    width: 100%;
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    font-size: 1.05em;
    font-weight: 700;
    color: #4E342E;
    padding: 3px 4px;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
    font-family: inherit;
    line-height: 1.5;
    min-width: 0;
}

.exp-note-title-input:hover {
    border-bottom-color: #FFCC80;
}

.exp-note-title-input:focus {
    border-bottom-color: #D84315;
    background: rgba(255, 245, 235, 0.6);
    border-radius: 4px 4px 0 0;
}

.exp-note-title-input::placeholder {
    color: #D7CCC8;
    font-weight: 400;
}

/* 删除按钮 */
.exp-note-delete-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #D7CCC8;
    font-size: 15px;
    padding: 3px 7px;
    border-radius: 5px;
    transition: color 0.2s, background 0.2s;
    line-height: 1;
    flex-shrink: 0;
}

.exp-note-delete-btn:hover {
    color: #D84315;
    background: #FFEBEE;
}

/* 内容区域 */
.exp-note-body {
    position: relative;
    margin-bottom: 6px;
}

/* 内容文本框 */
.exp-note-content-input {
    width: 100%;
    min-height: 96px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    font-size: 0.92em;
    color: #5D4037;
    padding: 8px 8px;
    outline: none;
    resize: vertical;
    font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
    line-height: 1.7;
    transition: border-color 0.2s ease, background 0.2s ease;
    box-sizing: border-box;
    display: block;
}

.exp-note-content-input:hover {
    border-color: #FFE0B2;
    background: rgba(255, 250, 245, 0.8);
}

.exp-note-content-input:focus {
    border-color: #D84315;
    background: #FFF8F0;
    box-shadow: 0 0 0 3px rgba(216, 67, 21, 0.06);
}

.exp-note-content-input::placeholder {
    color: #D7CCC8;
    font-family: inherit;
}

/* Markdown / LaTeX 渲染视图 */
.exp-note-render-view {
    display: none;
    min-height: 60px;
    padding: 12px 14px;
    font-size: 0.93em;
    color: #5D4037;
    line-height: 1.85;
    cursor: text;
    border-radius: 8px;
    border: 1px dashed #FFE0B2;
    background: transparent;
    transition: border-color 0.2s, background 0.2s;
    word-break: normal;
    overflow-x: auto;
}

.exp-note-render-view:hover {
    background: rgba(255, 250, 245, 0.6);
}

.exp-note-render-view.active {
    display: block;
}

/* MathJax overflow handling */
.exp-note-render-view mjx-container,
.exp-note-render-view .MathJax,
.exp-note-render-view .MJX-TEX {
    display: inline-block;
    max-width: none;
    overflow-x: visible;
    vertical-align: middle;
}

.exp-note-render-view p {
    margin: 0 0 8px;
}

.exp-note-render-view p:last-child {
    margin-bottom: 0;
}

.exp-note-render-view h1,
.exp-note-render-view h2,
.exp-note-render-view h3 {
    color: #D84315;
    margin: 12px 0 6px;
}

.exp-note-render-view .exp-note-section-header {
    display: block;
    color: #D84315;
    font-size: 1.0em;
    font-weight: 700;
    margin: 18px 0 6px;
    padding: 3px 0 4px;
    border-bottom: 1.5px solid #FFE0B2;
    letter-spacing: 0.03em;
}

.exp-note-render-view .exp-note-section-header:first-child {
    margin-top: 4px;
}

.exp-note-render-view code {
    background: #FFF3E0;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 0.88em;
    font-family: 'SFMono-Regular', 'Consolas', monospace;
}

.exp-note-render-view pre {
    background: #FFF3E0;
    padding: 10px;
    border-radius: 6px;
    overflow-x: auto;
}

.exp-note-render-view blockquote {
    border-left: 3px solid #D84315;
    padding-left: 12px;
    margin: 8px 0 8px 0;
    color: #8D6E63;
    font-style: italic;
}

.exp-note-render-view ul,
.exp-note-render-view ol {
    padding-left: 20px;
    margin: 4px 0 8px;
}

.exp-note-render-view .exp-note-table-wrap {
    width: 100%;
    overflow-x: auto;
    margin: 10px 0;
    border: 1px solid #FFE0B2;
    border-radius: 8px;
    background: #fff;
}

.exp-note-render-view table {
    border-collapse: collapse;
    width: max-content;
    min-width: 100%;
    margin: 0;
    font-size: 0.9em;
}

.exp-note-render-view th,
.exp-note-render-view td {
    border: 1px solid #FFE0B2;
    padding: 8px 10px;
    text-align: left;
    white-space: nowrap;
}

.exp-note-render-view th {
    background: #FFF3E0;
    font-weight: 700;
    position: sticky;
    top: 0;
    z-index: 1;
}

.exp-note-render-view tbody tr:nth-child(even) td {
    background: #FFFAF5;
}

.exp-note-render-view tbody tr:hover td {
    background: #FFF1E3;
}

/* 笔记底部状态栏 */
.exp-note-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    gap: 8px;
    flex-wrap: wrap;
}

.exp-note-status {
    font-size: 11px;
    color: #D7CCC8;
    min-height: 16px;
    transition: color 0.3s;
}

.exp-note-status.saving {
    color: #FF8F00;
}

.exp-note-status.saved {
    color: #43A047;
}

.exp-note-status.error {
    color: #E53935;
}

.exp-note-footer-actions {
    display: flex;
    gap: 5px;
    align-items: center;
}

.exp-note-toggle-btn {
    font-size: 11px;
    padding: 2px 8px;
    border: 1px solid #FFE0B2;
    background: #FFF3E0;
    color: #8D6E63;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.exp-note-toggle-btn:hover {
    background: #FFE0B2;
    color: #D84315;
}

/* ── 主操作按钮 ── */
.exp-notes-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    background: linear-gradient(135deg, #D84315, #FF8F00);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.22s ease;
    box-shadow: 0 2px 8px rgba(216, 67, 21, 0.25);
    font-family: inherit;
}

.exp-notes-add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 16px rgba(216, 67, 21, 0.32);
}

.exp-notes-add-btn:active {
    transform: translateY(0);
}

/* 工具按钮（导出、AI 生成、保存等） */
.exp-notes-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 15px;
    border-radius: 8px;
    font-size: 0.87em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
}

.exp-notes-action-btn.secondary {
    background: #FFF3E0;
    color: #D84315;
    border: 1px solid #FFE0B2;
}

.exp-notes-action-btn.secondary:hover {
    background: #FFE0B2;
    box-shadow: 0 2px 8px rgba(216, 67, 21, 0.12);
}

.exp-notes-action-btn.ai {
    background: linear-gradient(135deg, #5C6BC0, #7E57C2);
    color: white;
    box-shadow: 0 2px 8px rgba(92, 107, 192, 0.28);
}

.exp-notes-action-btn.ai:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(92, 107, 192, 0.38);
}

.exp-notes-action-btn.ai:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

/* AI 生成加载动画 */
@keyframes exp-notes-spin {
    to {
        transform: rotate(360deg);
    }
}

.exp-notes-ai-spinner {
    display: inline-block;
    width: 13px;
    height: 13px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: exp-notes-spin 0.7s linear infinite;
    vertical-align: middle;
}

/* 删除确认弹窗 */
.exp-notes-confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.38);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: exp-notes-fadein 0.15s ease;
}

@keyframes exp-notes-fadein {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.exp-notes-confirm-box {
    background: white;
    border-radius: 14px;
    padding: 28px 30px 22px;
    max-width: 360px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
    text-align: center;
    animation: exp-notes-slideup 0.18s ease;
}

@keyframes exp-notes-slideup {
    from {
        transform: translateY(12px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.exp-notes-confirm-box p {
    margin: 0 0 20px;
    color: #4E342E;
    font-size: 0.97em;
    line-height: 1.6;
}

.exp-notes-confirm-box strong {
    color: #D84315;
}

.exp-notes-confirm-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.exp-notes-export-box {
    max-width: 460px;
    text-align: left;
}

.exp-notes-export-format {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: #6D4C41;
    font-size: 0.9em;
}

.exp-notes-export-format-select {
    border: 1px solid #FFE0B2;
    border-radius: 8px;
    padding: 6px 10px;
    background: #fff;
    color: #5D4037;
    font-family: inherit;
}

.exp-notes-export-title {
    line-height: 1.5;
    word-break: break-word;
}

.exp-notes-export-title mjx-container,
.exp-notes-export-title .MathJax {
    font-size: 0.96em;
}

.exp-notes-export-list {
    max-height: 260px;
    overflow: auto;
    border: 1px solid #FFE0B2;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 14px;
    background: #FFFAF0;
}

.exp-notes-export-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 6px;
    border-radius: 6px;
    cursor: pointer;
    color: #5D4037;
}

.exp-notes-export-item:hover {
    background: #FFF3E0;
}

.exp-notes-export-checkbox {
    width: 15px;
    height: 15px;
}

.exp-notes-confirm-cancel {
    padding: 8px 22px;
    border: 1px solid #D7CCC8;
    background: white;
    color: #8D6E63;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.exp-notes-confirm-cancel:hover {
    background: #EFEBE9;
}

.exp-notes-confirm-delete {
    padding: 8px 22px;
    border: none;
    background: linear-gradient(135deg, #D84315, #BF360C);
    color: white;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    box-shadow: 0 2px 6px rgba(216, 67, 21, 0.3);
}

.exp-notes-confirm-delete:hover {
    box-shadow: 0 4px 12px rgba(216, 67, 21, 0.4);
    transform: translateY(-1px);
}

/* 美化滚动条样式 */
.exp-note-render-view::-webkit-scrollbar,
.exp-note-title-render::-webkit-scrollbar {
    height: 6px;
    background: #FFF3E0;
    border-radius: 3px;
}

.exp-note-render-view::-webkit-scrollbar-thumb,
.exp-note-title-render::-webkit-scrollbar-thumb {
    background: #FFCC80;
    border-radius: 3px;
}

.exp-note-render-view::-webkit-scrollbar-thumb:hover,
.exp-note-title-render::-webkit-scrollbar-thumb:hover {
    background: #D84315;
}

/* Firefox 滚动条 */
.exp-note-render-view,
.exp-note-title-render {
    scrollbar-width: thin;
    scrollbar-color: #FFCC80 #FFF3E0;
}

/* 响应式 */
@media (max-width: 600px) {
    .exp-notes-section {
        padding: 20px 16px;
    }

    .exp-notes-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .exp-note-card {
        padding: 14px 14px 10px;
    }
}