/* Navigation for the current conversation, separate from saved task history. */
.conversation-nav { position: absolute; z-index: 12; inset: 0 auto 0 8px; width: 32px; display: flex; align-items: center; }
.conversation-nav[hidden], .conversation-nav [hidden] { display: none !important; }
.conversation-nav button { box-shadow: none; transform: none; font: inherit; letter-spacing: normal; }
.conversation-nav button:active { transform: none; }
.conversation-nav button:focus-visible { outline: 2px solid var(--ink); outline-offset: -2px; }
.conversation-marks { width: 100%; max-height: calc(100% - 32px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: none; padding-block: 4px; }
.conversation-marks::-webkit-scrollbar { display: none; }
.conversation-nav .conversation-mark { display: flex; align-items: center; justify-content: flex-start; width: 32px; height: 24px; min-height: 24px; padding: 0 6px; border: 0; border-radius: 4px; background: transparent; }
.conversation-mark span { width: 20px; height: 2px; border-radius: 1px; background: var(--muted-soft); transform: scaleX(.5); transform-origin: left; transition: transform 140ms ease-out, background-color 140ms ease-out; }
.conversation-mark:hover span, .conversation-mark:focus-visible span { transform: scaleX(.8); background: var(--ink); }
.conversation-mark[aria-current="step"] span { transform: scaleX(1); background: var(--ink); }
.conversation-preview { position: absolute; left: 36px; width: min(340px, var(--conversation-preview-width)); max-height: calc(100% - 16px); overflow-y: auto; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--ink); overflow-wrap: anywhere; scrollbar-width: thin; scrollbar-color: var(--muted-soft) transparent; }
.conversation-preview p { margin: 0; font-size: 13px; line-height: 1.55; }
.conversation-preview .conversation-preview-title { font-size: 14px; font-weight: 550; margin-bottom: 8px; }
.conversation-preview .conversation-preview-answer { color: var(--muted); }
.conversation-preview .conversation-preview-meta { margin-top: 12px; color: var(--muted); font-size: 11px; }
.conversation-nav .conversation-nav-toggle, .conversation-stage-panel { display: none; }
.turn[data-turn-index]:focus { outline: none; }
.turn[data-turn-index]:focus-visible { outline: 2px solid var(--border-hover); outline-offset: 6px; border-radius: 6px; }
@media (min-width: 721px) and (hover: hover) and (pointer: fine) {
  .conversation-frame.has-conversation-nav .conversation-content { padding-inline: clamp(52px, 5vw, 66px); }
}
@media (max-width: 720px), (hover: none), (pointer: coarse) {
  .conversation-nav { position: static; order: -1; flex: none; width: 100%; height: 44px; justify-content: flex-end; padding: 0 16px; }
  .conversation-marks, .conversation-preview { display: none; }
  .conversation-nav .conversation-nav-toggle { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; width: auto; padding: 8px 4px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); font-size: 12px; }
  .conversation-nav-toggle svg { width: 18px; height: 18px; }
  .conversation-nav-toggle[aria-expanded="true"] { color: var(--ink); }
  .conversation-stage-panel { display: flex; flex-direction: column; position: absolute; top: 44px; right: 16px; width: min(340px, calc(100% - 32px)); max-height: calc(100% - 56px); border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
  .conversation-stage-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 4px 8px 4px 16px; }
  .conversation-stage-heading strong { font-size: 14px; font-weight: 550; }
  .conversation-nav .conversation-nav-close { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 8px; color: var(--muted); background: transparent; }
  .conversation-nav-close svg { width: 18px; height: 18px; }
  .conversation-stage-list { list-style: none; padding: 0 6px 6px; margin: 0; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: var(--muted-soft) transparent; }
  .conversation-nav .conversation-stage-link { width: 100%; display: flex; flex-direction: column; gap: 4px; text-align: left; padding: 12px 10px; border: 0; border-radius: 8px; background: transparent; color: var(--ink); font-size: 13px; line-height: 1.45; }
  .conversation-stage-link:hover, .conversation-stage-link[aria-current="step"] { background: var(--accent-soft); }
  .conversation-stage-link > span:first-child { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
  .conversation-stage-link > span:last-child { color: var(--muted); font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  .conversation-mark span { transition: none; }
}