/* Atelier · chat: transcript, why a persona says this, summaries. Loaded after atelier.css. */

/* ── Chat: a transcript, not bubbles. The persona speaks in the serif; you ask in the UI voice. ── */
:root[data-register] .conversation-page > .conversation-header,
:root[data-register='card'] .conversation-page > .conversation-header {
  padding: 8px 0 24px; background: transparent; border-radius: 0; border-bottom: 1px solid var(--on-surface);
}
:root[data-register] .conversation-page .conversation-identity { gap: 20px; align-items: center; }
:root[data-register] .conversation-page .conversation-identity .avatar { width: 84px; height: 84px; border-radius: 16px; overflow: hidden; font-size: var(--text-2xl); }
.conversation-page .conversation-identity .avatar img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
:root[data-register] .conversation-page .conversation-header .page-head__title { font-size: clamp(2.25rem, 3.6vw, 3.25rem); font-weight: 610; line-height: 1; letter-spacing: -.04em; }
.conversation-page .page-head__kicker { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .09em; text-transform: uppercase; color: var(--on-surface-faint); }

:root[data-register] .conversation-page .chat-messages { display: grid; gap: 36px; padding-block: 36px; }
/* Researcher: a quiet row with a mono label */
:root[data-register] .conversation-page .msg--user {
  grid-template-columns: 52px minmax(0, 1fr); column-gap: 16px; justify-items: start;
}
:root[data-register] .conversation-page .msg--user > .avatar { display: none; }
:root[data-register] .conversation-page .msg--user .msg__who {
  grid-column: 1; grid-row: 1; justify-self: start; text-align: start; padding-top: 4px;
  font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: .09em; text-transform: uppercase; color: var(--on-surface-faint);
}
:root[data-register] .conversation-page .msg--user .msg__who .msg__time { display: none; }
:root[data-register] .conversation-page .msg--user .msg__body {
  grid-column: 2; grid-row: 1; justify-self: start; max-width: 60ch; padding: 0; border-radius: 0; background: none;
  font-size: var(--text-md); line-height: 1.55; color: var(--on-surface-muted);
}
/* Persona: the serif voice, no card */
:root[data-register] .conversation-page .chat-message--persona,
:root[data-register='card'] .conversation-page .chat-message--persona {
  grid-template-columns: 52px minmax(0, 1fr); column-gap: 16px; padding: 0; border: 0; border-radius: 0; background: none;
}
:root[data-register] .conversation-page .chat-message--persona > .avatar { width: 44px; height: 44px; border-radius: 50%; overflow: hidden; grid-row: 1 / span 2; }
.conversation-page .chat-message--persona > .avatar img { width: 100%; height: 100%; object-fit: cover; }
:root[data-register] .conversation-page .chat-message--persona .msg__who { font-size: var(--text-sm); font-weight: 600; }
:root[data-register] .conversation-page .chat-message--persona .msg__time { display: inline; margin-inline-start: 6px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .04em; color: var(--on-surface-faint); }
:root[data-register] .conversation-page .chat-message--persona .msg__body {
  margin-top: 6px; max-width: 40ch;
  font-family: var(--font-voice); font-style: italic; font-weight: 400;
  font-size: var(--text-xl); line-height: 1.3; letter-spacing: -.005em; color: var(--on-surface);
}
.conversation-page .persona-update-marker { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .03em; color: var(--on-surface-muted); }

/* Composer: one rounded field with the live Send */
:root[data-register] .conversation-page .chat-composer,
:root[data-register='card'] .conversation-page .chat-composer {
  padding: 16px 18px; border-radius: 22px; background: var(--surface-raised);
  box-shadow: 0 0 0 1px var(--line), 0 18px 40px -26px color-mix(in oklch, var(--on-surface) 40%, transparent);
}
.conversation-page .chat-composer:focus-within { box-shadow: 0 0 0 1.5px var(--on-surface), 0 18px 40px -26px color-mix(in oklch, var(--on-surface) 40%, transparent); }
.conversation-page .chat-composer .field__label { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: .09em; text-transform: uppercase; color: var(--on-surface-faint); }
.conversation-page .chat-composer .textarea { border: 0; background: transparent; padding-inline: 0; font-size: var(--text-md); }
.conversation-page .chat-composer .textarea:focus { outline: none; }
.conversation-page .chat-composer .toolbar { border-top-color: var(--line); }

@media (max-width: 40rem) {
  :root[data-register] .conversation-page .conversation-identity .avatar { width: 64px; height: 64px; }
  :root[data-register] .conversation-page .msg--user,
  :root[data-register] .conversation-page .chat-message--persona { grid-template-columns: 36px minmax(0, 1fr); column-gap: 12px; }
  :root[data-register] .conversation-page .chat-message--persona > .avatar { width: 36px; height: 36px; }
  :root[data-register] .conversation-page .chat-message--persona .msg__body { grid-column: 2; font-size: var(--text-lg); }
  :root[data-register] .conversation-page .msg--user .msg__body { grid-column: 2; }
}

/* Why a persona says this: the traits the reply leaned on, with their provenance */
:root[data-register] .conversation-page .reply-why { grid-column: 2; margin-top: 12px; max-width: 60ch; padding: 0; background: none; border-radius: 0; }
.conversation-page .reply-why summary { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; font-size: var(--text-sm); font-weight: 600; color: var(--on-surface-muted); cursor: pointer; list-style: none; }
.conversation-page .reply-why summary::-webkit-details-marker { display: none; }
.conversation-page .reply-why summary:hover { color: var(--on-surface); }
.conversation-page .reply-why summary:focus-visible { outline: 2px solid var(--on-surface); outline-offset: 2px; }
.reply-why__traits { display: grid; gap: 8px; margin: 8px 0 0; padding: 12px 14px; list-style: none; border-radius: 12px; background: var(--surface-raised); box-shadow: 0 0 0 1px var(--line); }
.reply-why__traits li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font-size: var(--text-sm); }
.reply-why__traits .field__source { flex: none; }
.reply-why__label { font-weight: 600; }
.reply-why__value { flex-basis: 100%; color: var(--on-surface-muted); }
.reply-why__note { margin: 8px 0 0; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .02em; color: var(--on-surface-faint); }
.proposal-trait__hint { flex-basis: 100%; margin: 0; }

/* ── Chat summary: a document a colleague can read without the conversation ── */
.conversation-page .page-head__actions { display: flex; flex-wrap: wrap; gap: 8px; }
.summary-request { display: inline; }
.summary-page { max-width: 52rem; }
.summary-doc { margin-top: 16px; padding: clamp(24px, 4vw, 48px); border-radius: 20px; background: var(--surface-raised); box-shadow: 0 0 0 1px var(--line), 0 30px 60px -44px color-mix(in oklch, var(--on-surface) 45%, transparent); }
.summary-doc__head { display: grid; gap: 16px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.summary-doc__kind { display: flex; justify-content: space-between; gap: 12px; margin: 0; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .08em; text-transform: uppercase; color: var(--on-surface-faint); }
.summary-doc__kind span { color: var(--on-surface); font-weight: 500; }
.summary-doc__who { display: flex; align-items: center; gap: 12px; font-size: var(--text-sm); color: var(--on-surface-muted); line-height: 1.4; }
.summary-doc__who strong { color: var(--on-surface); font-size: var(--text-md); }
.summary-doc__who .avatar { width: 44px; height: 44px; border-radius: 50%; overflow: hidden; flex: none; }
.summary-doc__who .avatar img { width: 100%; height: 100%; object-fit: cover; }
.summary-doc__limit { display: flex; align-items: flex-start; gap: 10px; margin: 0; padding: 10px 14px; border-radius: 10px; background: var(--surface-sunken); font-size: var(--text-sm); color: var(--on-surface-muted); }
.summary-doc__limit-mark { flex: none; width: 10px; height: 10px; margin-top: 5px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--on-surface-muted); background: linear-gradient(90deg, var(--on-surface-muted) 50%, transparent 50%); }
.summary-doc__headline { margin: 28px 0 28px; font-size: clamp(1.45rem, 2.4vw, 1.9rem); font-weight: 600; line-height: 1.15; letter-spacing: -.02em; text-wrap: balance; }
.summary-doc__headline--quiet { color: var(--on-surface-muted); font-weight: 500; }
.summary-doc__label { margin: 0 0 12px; font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--on-surface-faint); }
.summary-takeaways { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; counter-reset: takeaway; }
.summary-takeaways li { position: relative; padding-left: 40px; counter-increment: takeaway; }
.summary-takeaways li::before { content: counter(takeaway, decimal-leading-zero); position: absolute; left: 0; top: 3px; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--on-surface-faint); }
.summary-takeaways p { margin: 0; font-size: var(--text-md); line-height: 1.55; max-width: 62ch; }
.summary-takeaways .summary-takeaways__cite { margin-top: 4px; font-size: var(--text-sm); color: var(--on-surface-faint); }
.summary-takeaways__cite a { color: var(--on-surface-muted); text-underline-offset: 3px; }
.summary-validate { margin-top: 32px; padding: 18px 20px; border-left: 2px dashed var(--on-surface); border-radius: 0 12px 12px 0; background: var(--surface-page); }
.summary-validate ul, .summary-validate ol { display: grid; gap: 8px; margin: 0; padding-left: 22px; }
.summary-doc__made { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.summary-doc__made dl { display: grid; gap: 6px; margin: 0; }
.summary-doc__made dl div { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: 12px; font-size: var(--text-sm); }
.summary-doc__made dt { color: var(--on-surface-faint); }
.summary-doc__made dd { margin: 0; color: var(--on-surface-muted); }
.summary-doc__made a { color: inherit; text-underline-offset: 3px; }
.summary-outdated { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; padding: 14px 18px; border-left: 3px solid var(--attention); border-radius: 0 12px 12px 0; background: color-mix(in oklch, var(--attention) 10%, var(--surface-raised)); }
.summary-outdated p { margin: 0; }
.summary-versions { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 24px; font-size: var(--text-sm); }
.summary-versions .summary-doc__label { flex-basis: 100%; margin: 0; }
.summary-versions a { color: var(--on-surface-muted); text-underline-offset: 3px; }
.conversation-page .chat-message--researcher { scroll-margin-top: 96px; }
@media (max-width: 40rem) {
  .summary-doc__made dl div { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .summary-takeaways li { padding-left: 32px; }
}
@media print {
  .nav-primary, .study-bar__crumbs, .summary-outdated, .summary-versions { display: none; }
  .summary-doc { box-shadow: none; padding: 0; }
}

.conversation-limit { margin: 4px 0 20px; }
.follow-up-line { margin: 4px 0 0; font-size: var(--text-sm); color: var(--on-surface-muted); }
.follow-up-line a { color: inherit; text-underline-offset: 3px; }
.conversation-controls .follow-up-origin { grid-column: 1 / -1; margin: 0 0 16px; box-shadow: none; background: var(--surface-page); }

/* A saved discussion setup: the traits that steer replies as chips; background and excluded fold behind counts */
.input-tier { display: grid; gap: 6px; margin-block: 10px; }
.input-tier__label { margin: 0; font-size: var(--text-sm); }
.input-tier__label .num { color: var(--on-surface-muted); }
details.input-tier > summary { cursor: pointer; }
.trait-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.trait-chips li { padding: 3px 10px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--line-strong); font-size: var(--text-sm); line-height: 1.5; }
.trait-chips--quiet li { box-shadow: inset 0 0 0 1px var(--line); color: var(--on-surface-muted); }
.input-tier__group { margin: 0; }
.input-tier__group > summary { padding-block: 4px; cursor: pointer; font-size: var(--text-sm); color: var(--on-surface-muted); }
.input-tier__group > summary .num { color: var(--on-surface-faint); }
.input-tier__group > .trait-chips { margin: 4px 0 8px; }
/* The tier and its category rows are lines in the summary, not cards: the chat page boxes every <details>,
   and the instrument look's card list adds a radius, so this outranks both (:root:root) */
:root:root .main details:is(.input-tier, .input-tier__group) { padding-inline: 0; border-radius: 0; background: none; box-shadow: none; }
.input-tier__group { border-bottom: 1px solid var(--line); }

/* A saved chat's length at a glance (Instrument look): one dot per question, filled once answered, a ring while
   waiting. A chat with nothing asked yet shows one faint ring and steps back, so the eye goes to chats with
   something in them (Bishop, 2026-10-28). */
html[data-look="instrument"] .saved-conversation__turns { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px; margin-right: auto; max-width: 60%; }
html[data-look="instrument"] .saved-conversation__turns i { width: 7px; height: 7px; border-radius: 50%; background: var(--on-surface-muted); }
html[data-look="instrument"] .saved-conversation__turns i[data-turn="waiting"] { background: transparent; box-shadow: inset 0 0 0 1.5px var(--on-surface-muted); }
html[data-look="instrument"] .saved-conversation__turns i[data-turn="none"] { background: transparent; box-shadow: inset 0 0 0 1px var(--line-strong); }
html[data-look="instrument"] .saved-conversation__turns .num { font-size: 11px; color: var(--on-surface-faint); margin-left: 2px; }
html[data-look="instrument"] .saved-conversation--empty .saved-conversation__title { color: var(--on-surface-muted); font-weight: 500; }
html[data-look="instrument"] .saved-conversation--empty .saved-conversation__link { opacity: .78; }
html[data-look="instrument"] .saved-conversation--empty .saved-conversation__link:is(:hover, :focus-visible) { opacity: 1; }