/*
 * 输入框上方的「待发送 / 引导」队列（js/ai-followups.js，5.4.1）。
 * 与任务进度条同一张卡片：只取 reading-theme.css 里成对定义的语义变量，不写色值。
 * 上下边距由 ai-search.css「输入框上方叠放的几行」统一管。
 */
.ai-followups {
    border: 1px solid var(--kb-paper-line);
    border-radius: 10px;
    background: var(--kb-paper-panel);
    color: var(--kb-ink);
    font-size: 0.8125rem;
    overflow: hidden;
}

.ai-followups[hidden] {
    display: none;
}

/* ---- 标题行 ---- */
.ai-followups__head {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 4px 6px 4px 12px;
}

.ai-followups__head > i {
    flex-shrink: 0;
    color: var(--kb-accent);
    font-size: 1rem;
}

.ai-followups__title {
    flex-shrink: 0;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.ai-followups__hint {
    flex: 1;
    min-width: 0;
    color: var(--kb-ink-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ai-followups__head-actions {
    display: inline-flex;
    flex-shrink: 0;
    gap: 4px;
}

/* ---- 列表 ---- */
.ai-followups__list {
    list-style: none;
    margin: 0;
    padding: 0 0 4px;
    max-height: 196px;
    overflow-y: auto;
    border-top: 1px solid var(--kb-paper-line);
}

.ai-followup {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 40px;
    padding: 2px 6px 2px 8px;
}

.ai-followup + .ai-followup {
    border-top: 1px dashed color-mix(in srgb, var(--kb-paper-line) 70%, transparent);
}

.ai-followup.is-dragging {
    opacity: 0.45;
}

.ai-followup.is-drop-before::before,
.ai-followup.is-drop-after::after {
    content: '';
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    border-radius: 999px;
    background: var(--kb-accent);
}

.ai-followup.is-drop-before::before { top: -1px; }
.ai-followup.is-drop-after::after { bottom: -1px; }

.ai-followup__grip {
    flex-shrink: 0;
    display: inline-flex;
    width: 16px;
    justify-content: center;
    color: var(--kb-ink-muted);
    cursor: grab;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.ai-followup:hover .ai-followup__grip,
.ai-followup:focus-within .ai-followup__grip {
    opacity: 1;
}

@media (pointer: coarse) {
    /* 触屏没有拖放：排序走「更多」菜单里的上移 / 下移 */
    .ai-followup__grip { display: none; }
}

/* 正在上传 / 接入：转圈；正在引导：脉冲点 */
.ai-followup__state {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    margin: 0 1px;
    /* 全站统一的一圈珠子（css/loading.css 的 --kb-spinner-beads） */
    border: 0;
    background: var(--kb-spinner-beads);
    color: var(--kb-accent);
    animation: kb-loading-beads 0.96s steps(8, end) infinite;
}

.ai-followup__state.is-pulse {
    width: 8px;
    height: 8px;
    margin: 0 4px;
    border: 0;
    background: var(--kb-accent);
    animation: ai-followup-pulse 1.4s ease-in-out infinite;
}

@keyframes ai-followup-pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--kb-accent-soft); opacity: 1; }
    50% { box-shadow: 0 0 0 5px var(--kb-accent-soft); opacity: 0.6; }
}

.ai-followup__warn {
    flex-shrink: 0;
    color: var(--color-error);
    font-size: 0.9375rem;
}

.ai-followup__body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.ai-followups .ai-followup__text {
    display: block;
    width: 100%;
    min-height: 0;
    padding: 4px 2px;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 400;
    line-height: 1.5;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    transition: none;
}

.ai-followup.is-expanded .ai-followup__text {
    white-space: pre-wrap;
    word-break: break-word;
}

.ai-followup.is-steer .ai-followup__text,
.ai-followup.is-claimed .ai-followup__text,
.ai-followup.is-local .ai-followup__text {
    color: var(--kb-ink-soft);
}

.ai-followup__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 10px;
    padding: 0 2px 3px;
    color: var(--kb-ink-muted);
    font-size: 0.75rem;
    line-height: 1.4;
}

.ai-followup__meta > span {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.ai-followup.is-failed .ai-followup__meta {
    color: var(--color-error);
}

.ai-followup.is-steer .ai-followup__meta {
    color: var(--kb-accent);
}

.ai-followup__actions {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    gap: 2px;
}

/* ---- 内联编辑 ---- */
.ai-followup__editor {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 6px 0;
}

.ai-followups .ai-followup__editor textarea {
    width: 100%;
    min-height: 36px;
    max-height: 160px;
    padding: 7px 10px;
    border: 1px solid var(--kb-paper-line);
    border-radius: 8px;
    background: var(--kb-paper-soft);
    color: inherit;
    font: inherit;
    line-height: 1.5;
    resize: none;
}

.ai-followup__editor-actions {
    display: flex;
    justify-content: flex-end;
    gap: 4px;
}

/* ---- 按钮：form-unified.css 给所有 button 兜了 40px 高、16px 内边距，这里一并收回 ---- */
.ai-followups .ai-followups__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 28px;
    height: 28px;
    padding: 0 8px;
    border: 1px solid transparent;
    border-radius: 7px;
    background: transparent;
    color: var(--kb-ink-soft);
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ai-followups .ai-followups__btn i {
    font-size: 0.9375rem;
}

.ai-followups .ai-followups__btn.is-icon {
    width: 28px;
    padding: 0;
}

.ai-followups .ai-followups__btn.is-steer {
    border-color: color-mix(in srgb, var(--kb-accent) 40%, var(--kb-paper-line));
    color: var(--kb-accent);
}

.ai-followups .ai-followups__btn.is-primary {
    border-color: var(--kb-accent);
    background: var(--kb-accent);
    color: var(--text-inverse);
}

.ai-followups .ai-followups__btn.is-quiet {
    color: var(--kb-ink-muted);
}

@media (any-hover: hover) {
    .ai-followups .ai-followups__btn:where(:not(:disabled)):hover {
        background: var(--kb-active-bg);
        color: var(--kb-ink);
    }

    .ai-followups .ai-followups__btn.is-steer:where(:not(:disabled)):hover {
        background: var(--kb-accent-soft);
        color: var(--kb-accent);
    }

    .ai-followups .ai-followups__btn.is-primary:where(:not(:disabled)):hover {
        background: color-mix(in srgb, var(--kb-accent) 88%, var(--kb-ink));
        color: var(--text-inverse);
    }

    .ai-followups .ai-followup__text:hover {
        background: var(--kb-active-bg);
    }
}

.ai-followups .ai-followups__btn:disabled {
    border-color: var(--kb-control-disabled-border);
    background: var(--kb-control-disabled-bg);
    color: var(--kb-control-disabled-text);
    cursor: default;
}

.ai-followups .ai-followups__btn:focus-visible:where(html:not(.kb-focus-pointer) *),
.ai-followups .ai-followup__text:focus-visible:where(html:not(.kb-focus-pointer) *) {
    outline: 2px solid var(--kb-accent);
    outline-offset: -2px;
}

@media (max-width: 767px) {
    .ai-followups__list { max-height: 150px; }
    .ai-followups__hint { display: none; }
    /* 触控目标 ≥ 44px：行高撑满，按钮命中区靠行高与内边距补足 */
    .ai-followup { min-height: 44px; }
    .ai-followups .ai-followups__btn { height: 36px; min-height: 36px; }
    .ai-followups .ai-followups__btn.is-icon { width: 36px; }
}

@media (prefers-reduced-motion: reduce) {
    .ai-followup__state,
    .ai-followup__state.is-pulse { animation: none; }
}

/* ---- 停止键：队列模式下发送与停止分开 ---- */
.ai-input-container:has(#aiStopBtn:not([hidden])) { grid-template-columns: auto auto auto 1fr auto 32px 32px; }
.ai-input-container:has(#aiStopBtn:not([hidden])) .ai-send-btn { grid-column: 7; }
.ai-stop-btn { grid-row: 2; grid-column: 6; display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; min-height: 32px !important; padding: 0; border: 1px solid var(--kb-paper-line); border-radius: 8px; background: transparent; color: var(--kb-ink-soft); }
.ai-stop-btn i { font-size: 19px; }
.ai-stop-btn[hidden] { display: none; }

/* 权限确认和提问共用 ai-confirm-overlay：队列模式同样覆盖输入区，不参与 footer 布局。 */