/* ==========================================================================
   想法 Markdown 输入辅助（选中浮出格式条 + 预览）
   发布器与编辑器模态框共用，见 assets/js/thought-markdown.js
   ========================================================================== */

/* 浮出格式条：定位在输入框所在的 position:relative 容器内部，
   始终使用正偏移，避免被模态框 body 的 overflow 裁掉 */
.uap-md-bar {
    position: absolute;
    z-index: 30;
    display: flex;
    gap: 2px;
    padding: 4px;
    background: #1f2937;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.24);
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: opacity 0.12s ease, transform 0.12s ease, visibility 0.12s;
    pointer-events: none;
}

.uap-md-bar.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.uap-md-btn {
    width: 28px !important;
    height: 28px !important;
    min-width: 28px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    border: none !important;
    border-radius: 6px !important;
    color: #e5e7eb !important;
    cursor: pointer;
    box-shadow: none !important;
    transition: background 0.15s, color 0.15s;
}

.uap-md-btn svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    stroke: currentColor;
}

.uap-md-btn:hover,
.uap-md-btn:focus {
    background: rgba(255, 255, 255, 0.16) !important;
    color: #fff !important;
    outline: none !important;
}

@media (prefers-reduced-motion: reduce) {
    .uap-md-bar {
        transition: none;
    }
}

/* 预览开关：位于提交区（发布按钮左侧 / 模态框页脚左侧），
   与「发布」同层级的视图切换，不占工具行宽度。图标 + 文字，语义更明确。 */
.uap-md-preview-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 36px;
    padding: 0 12px;
    background: transparent;
    border: 1px solid var(--uap-border, #e5e7eb);
    border-radius: 999px;
    font-size: 13px;
    line-height: 1;
    white-space: nowrap;
    color: var(--uap-text-muted, #6b7280);
    cursor: pointer;
    box-shadow: none;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.uap-md-preview-toggle svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    stroke: currentColor;
}

.uap-md-preview-toggle:hover {
    background: var(--uap-primary-light, #eff6ff);
    border-color: var(--uap-primary, #2563eb);
    color: var(--uap-action-bg, #4f46e5);
}

.uap-md-preview-toggle:focus-visible {
    outline: 2px solid var(--uap-primary, #2563eb);
    outline-offset: 2px;
}

.uap-md-preview-toggle.is-active {
    background: #ecfdf5;
    border-color: #a7f3d0;
    color: #10b981;
}

.uap-md-preview-toggle.is-active:hover {
    background: #d1fae5;
    border-color: #6ee7b7;
    color: #10b981;
}

/* 预览面板：视觉上与最终卡片正文一致，便于判断真实效果 */
.uap-md-preview {
    box-sizing: border-box;
    padding: 14px 16px;
    background: var(--uap-bg, #f9fafb);
    border: 1px dashed var(--uap-border, #e5e7eb);
    border-radius: var(--uap-radius-lg, 12px);
    font-size: 15px;
    line-height: 1.7;
    color: var(--uap-text, #1f2937);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.uap-md-preview-empty {
    margin: 0;
    color: var(--uap-text-light, #9ca3af);
    font-size: 14px;
}

/* 预览内的富文本元素与想法正文保持同一套呈现 */
.uap-md-preview .uap-thought-quote {
    margin: 8px 0;
    padding: 6px 12px;
    border-left: 3px solid var(--uap-border, #e5e7eb);
    color: var(--uap-text-light, #6b7280);
}

.uap-md-preview .uap-thought-quote p {
    margin: 0;
}

.uap-md-preview .uap-thought-list {
    margin: 8px 0;
    padding-left: 22px;
}

.uap-md-preview .uap-thought-code {
    padding: 2px 6px;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    font-size: 13px;
    font-family: Consolas, Monaco, "Courier New", monospace;
}

.uap-md-preview .uap-thought-link,
.uap-md-preview .uap-mention,
.uap-md-preview .uap-topic-link {
    color: var(--uap-action-bg, #4f46e5);
    text-decoration: none;
}

.uap-md-preview .uap-thought-link:hover,
.uap-md-preview .uap-mention:hover,
.uap-md-preview .uap-topic-link:hover {
    text-decoration: underline;
}

/* 预览态隐藏绝对定位的字数计数器，避免浮在预览内容之上 */
.uap-md-previewing .uap-thought-counter,
.uap-md-previewing .uap-thought-editor-counter {
    display: none;
}

/* ==========================================================================
   想法编辑器：语法速查、内联校验、视频时长徽标
   见 assets/js/thought-composer.js 与 assets/js/thought-markdown.js
   ========================================================================== */

/* 语法提示：输入框下方的文字入口（GitHub 的「Markdown is supported」模式）。
   原先是工具行里的一个 ? 图标 —— 图标无法说明「这里支持 Markdown」，
   而这句话本身就是最有效的可发现性提示，且不占工具行宽度。 */
.uap-md-help-hint {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 6px;
    padding: 2px 0;
    background: transparent;
    border: none;
    font-size: 12px;
    line-height: 1.6;
    color: var(--uap-text-light, #9ca3af);
    cursor: pointer;
    box-shadow: none;
    transition: color 0.18s ease;
}

.uap-md-help-hint svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    stroke: currentColor;
}

.uap-md-help-hint:hover,
.uap-md-help-hint.is-active {
    background: transparent;
    color: var(--uap-action-bg, #4f46e5);
    text-decoration: underline;
}

.uap-md-help-hint:focus-visible {
    outline: 2px solid var(--uap-primary, #2563eb);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 面板挂在 body 上并用 fixed 定位：输入区处于卡片/模态框顶部，
   向上展开会被页面 header 盖住，或被模态框内容区的 overflow 裁掉。
   z-index 需高于编辑器模态框（99999）。 */
.uap-md-help-panel {
    position: fixed;
    z-index: 100010;
    width: 400px;
    max-width: calc(100vw - 32px);
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--uap-border, #e5e7eb);
    border-radius: 14px;
    box-shadow: 0 12px 36px rgba(15, 23, 42, 0.16);
}

.uap-md-help-panel[hidden] {
    display: none;
}

/* 移动端改为底部抽屉，与「可见范围」下拉保持同一交互语言 */
.uap-md-help-overlay {
    position: fixed;
    inset: 0;
    z-index: 100005;
    background: rgba(0, 0, 0, 0.4);
}

@media (max-width: 640px) {
    .uap-md-help-panel.uap-md-help-mobile {
        top: auto !important;
        left: 0 !important;
        right: 0;
        bottom: 0;
        width: 100%;
        max-width: none;
        max-height: 70vh;
        padding: 18px 18px calc(18px + env(safe-area-inset-bottom, 0px));
        border: none;
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -8px 28px rgba(15, 23, 42, 0.18);
        animation: uapMdHelpSlideUp 0.2s ease;
    }
}

@keyframes uapMdHelpSlideUp {
    from { transform: translateY(12px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .uap-md-help-panel.uap-md-help-mobile {
        animation: none;
    }
}

.uap-md-help-title {
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--uap-text, #1f2937);
}

.uap-md-help-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 4px 16px;
}

.uap-md-help-list li {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    line-height: 1.8;
}

.uap-md-help-list code {
    padding: 1px 6px;
    background: var(--uap-bg, #f3f4f6);
    border-radius: 4px;
    font-size: 12px;
    font-family: Consolas, Monaco, "Courier New", monospace;
    color: var(--uap-text, #374151);
    white-space: nowrap;
}

.uap-md-help-arrow {
    color: var(--uap-text-light, #9ca3af);
    flex-shrink: 0;
}

.uap-md-help-sample {
    color: var(--uap-text, #1f2937);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.uap-md-help-quote {
    padding-left: 8px;
    border-left: 3px solid var(--uap-border, #e5e7eb);
    color: var(--uap-text-light, #6b7280);
}

.uap-md-help-li::before {
    content: '• ';
    color: var(--uap-text-light, #9ca3af);
}

.uap-md-help-link {
    color: var(--uap-action-bg, #4f46e5);
    text-decoration: underline;
}

.uap-md-help-tip {
    margin: 8px 0 0;
    padding-top: 8px;
    border-top: 1px solid var(--uap-border-light, #f3f4f6);
    font-size: 12px;
    line-height: 1.6;
    color: var(--uap-text-light, #9ca3af);
}

/* 内联持久校验提示：替代自动消失的 toast，可被屏幕阅读器关联到输入框 */
.uap-composer-error {
    margin-top: 8px;
    padding: 8px 12px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.6;
    color: #b91c1c;
}