/* ==========================================================================
   Chat workspace: the list, the search panel and the conversation.

   Layout: .chats-page > .chats-page-frame > .chat-workspace
             .chat-workspace-side          list (.chat-list-page) or search (.chat-search-page)
             .chat-workspace-conversation  the open conversation or .chat-empty-pane

   The side column shows one panel at a time, chosen by data-chat-mode on the
   workspace. On phones only one column is visible: the side column until a
   conversation is open (data-chat-active="1"), then the conversation.

   Colours come from the tokens below so the three panels stay consistent.
   Buttons are the standard .classowl-button with the generic `compact` and
   `icon-only` modifiers from classowl-ui.css, and nothing here needs !important
   ========================================================================== */

.chats-page {
    /* The fixed header is 61px and overlaps the first content pixel, so 41 on top keeps the visible gap at 40 on every side */
    padding: 41px 40px 40px;
    --chat-text: #282828;
    --chat-text-heading: #1f3c77;
    --chat-text-muted: #657fac;
    --chat-text-faint: #8a9bb8;
    --chat-border: #e1e7f0;
    --chat-surface: #fff;
    --chat-surface-alt: #f7f9fd;
    --chat-surface-hover: #f7faff;
    --chat-surface-unread: #f3f7ff;
    --chat-surface-selected: #eaf3ff;
    --chat-accent: #3080eb;
    --chat-accent-soft: #edf2fb;
    --chat-warning-text: #9b6c15;
    --chat-warning-surface: #fff4d8;
    --chat-warning-border: #f8b33c;
    --chat-danger-text: #b42f2f;
    --chat-danger-surface: #fff4f4;
    --chat-radius: 12px;
    --chat-side-padding: 20px;
    font-size: 14px;
}
.chats-page .none { display: none !important; }
.chats-page-frame { box-sizing: border-box; width: 100%; max-width: none; padding: 0; overflow: hidden; }

/* ---------- workspace grid ---------- */

/* 100vh less the 60px header and the page's 41px above and 40px below, so the frame keeps the same gap on all four sides */
.chat-workspace { display: grid; grid-template-columns: clamp(320px, 26vw, 430px) minmax(0, 1fr); width: 100%; height: calc(100vh - 141px); min-height: 620px; }
.chat-workspace-side { box-sizing: border-box; display: flex; flex-direction: column; min-width: 0; min-height: 0; border-right: 1px solid var(--chat-border); background: var(--chat-surface); }
.chat-workspace-conversation { box-sizing: border-box; display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--chat-surface-alt); }

.chat-list-page, .chat-search-page { display: flex; flex-direction: column; width: 100%; height: 100%; min-width: 0; min-height: 0; }
.chat-workspace[data-chat-mode="search"] .chat-list-page { display: none; }
.chat-workspace[data-chat-mode="list"] .chat-search-page { display: none; }

/* ---------- side column header (shared by list and search) ---------- */

/* 18 + 36 (title row) + 18 = 72px, the same height as the conversation header (14 + 44 avatar + 14), so both bottom borders share one line */
.chat-side-header { flex: 0 0 auto; padding: 18px var(--chat-side-padding); border-bottom: 1px solid var(--chat-border); }
.chat-side-header-row { display: flex; align-items: center; gap: 12px; }
.chat-side-header h1 { flex: 0 1 auto; min-width: 0; margin: 0; overflow: hidden; color: var(--chat-text-heading); font-size: 22px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.chat-side-header .classowl-button { flex: 0 0 auto; width: auto; margin: 0; }
.chat-side-header .classowl-button .fa { margin-right: 4px; }

/* Title row: the gear sits after the title as a quiet icon, New chat at the right edge, and a small accent dot on the gear means the unread-only filter is on */
.chat-side-header-row > .chat-icon-button { margin-left: -6px; }
.chat-side-header-row > [data-chat-open-search] { margin-left: auto; }
.chat-list-settings-button { position: relative; }
/* The cog glyph sits high in its box, and 2px down puts its centre on the title's x-height */
.chat-list-settings-button .fa { position: relative; top: 2px; }
.chat-list-settings-dot { position: absolute; top: 4px; right: 4px; width: 7px; height: 7px; border: 2px solid var(--chat-surface); border-radius: 50%; background: var(--chat-accent); }

/* Settings panel: under the title row, left edge under the gear, the same surface as the conversation info card */
.chat-side-header { position: relative; }
.chat-list-settings { position: absolute; z-index: 6; top: calc(100% - 6px); left: var(--chat-side-padding); width: 280px; padding: 18px 20px 20px; border: 1px solid #e5e5e5; border-radius: 12px; background: var(--chat-surface); box-shadow: 0 8px 24px rgba(31, 60, 119, .14); }
.chat-list-settings-title { margin: 0 32px 6px 0; color: var(--chat-text-heading); font-size: 15px; font-weight: 600; line-height: 24px; }
.chat-list-settings-close { position: absolute; top: 16px; right: 16px; }
.chat-list-settings .classowl-toggle { padding: 8px 0; line-height: 20px; }
.chat-list-settings .classowl-toggle > .caption { color: var(--chat-text-heading); font-size: 13px; }
.chat-list-settings .classowl-toggle > input:checked ~ .toggle { background-color: var(--chat-accent); }
.chat-list-settings-hint { margin: 0 0 0 46px; color: var(--chat-text-faint); font-size: 11px; line-height: 15px; text-align: left; }

/* Search row: the magnifier at the left end of the frame, the date filter as an icon button at the right. The picker hangs off an off-screen input and the chosen day shows as a chip */
.chat-list-search { margin: 12px 0 0; }
.chat-list-search > .input { padding-right: 36px; }
.chat-list-search > .chat-list-date-button { position: absolute; top: 4px; right: 4px; }
.chat-list-filter-hint { flex: 0 0 auto; padding: 8px var(--chat-side-padding); color: var(--chat-text-faint); font-size: 11px; text-align: center; }
.chat-list-date-picker { position: relative; height: 0; margin: 0; }
.chat-list-date-picker > .chat-list-date-input { position: absolute; top: 0; left: 0; width: 1px; height: 1px; padding: 0; border: 0; opacity: 0; pointer-events: none; }
.chat-list-date-chip { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; padding: 4px 6px 4px 10px; border-radius: 14px; color: var(--chat-text-muted); background: var(--chat-accent-soft); font-size: 12px; line-height: 18px; }
.chat-list-date-chip .fa-calendar { color: var(--chat-accent); }
.chat-list-date-clear { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; padding: 0; border: 0; border-radius: 50%; background: transparent; color: var(--chat-text-muted); cursor: pointer; font-size: 11px; }
.chat-list-date-clear:hover, .chat-list-date-clear:focus-visible { color: var(--chat-text-heading); background: rgba(31, 60, 119, .1); outline: none; }

/* ---------- icon buttons ---------- */

/* Every flat icon control in the workspace: 28px square, no frame, grey glyph, light square on hover. That is the list settings and date filter, the search back arrow, info, card close, composer tools and message actions */
.chat-icon-button { display: inline-flex; flex: 0 0 auto; align-items: center; justify-content: center; box-sizing: border-box; width: 28px; height: 28px; margin: 0; padding: 0; border: 0; border-radius: 3px; background: transparent; color: var(--chat-text-faint); font-size: 16px; line-height: 1; text-decoration: none; cursor: pointer; transition: background-color 150ms ease, color 150ms ease; }
.chat-icon-button:hover, .chat-icon-button[aria-expanded="true"] { color: var(--chat-text-muted); background: var(--chat-surface-alt); text-decoration: none; }
.chat-icon-button.active, .chat-icon-button[aria-pressed="true"] { color: var(--chat-accent); }
.chat-icon-button:focus-visible { outline: 2px solid var(--chat-accent); outline-offset: 1px; }
.chat-icon-button .fa { display: block; }

.chat-list-history-only { flex: 0 0 auto; margin: 12px var(--chat-side-padding) 0; padding: 10px 12px; border: 1px solid var(--chat-warning-border); border-radius: 4px; color: var(--chat-text-muted); background: var(--chat-warning-surface); }
/* Status lines: muted while loading with a spinner, red on error, collapsed when empty */
.chat-status { color: var(--chat-text-muted); }
.chat-status[data-state="error"] { color: var(--chat-danger-text); }
.chat-status .fa-spinner { margin-right: 6px; }
.chat-list-status { flex: 0 0 auto; padding: 0 var(--chat-side-padding); }
.chat-list-status[data-state] { padding-top: 12px; padding-bottom: 12px; }
.chat-side-loading { flex: 1 1 auto; display: grid; place-items: center; min-height: 160px; color: var(--chat-text-faint); font-size: 24px; }
.chat-list-unavailable { margin: 20px var(--chat-side-padding); padding: 16px; border: 1px solid #ef4949; border-radius: 4px; color: var(--chat-danger-text); background: var(--chat-danger-surface); }
.chat-list-page.unavailable .chat-list-items, .chat-list-page.unavailable .chat-list-empty, .chat-list-page.unavailable .chat-side-pagination { display: none; }

/* ---------- person rows (list rows and search results share this) ---------- */

.chat-person-row { display: flex; align-items: center; gap: 12px; min-height: 72px; padding: 12px var(--chat-side-padding); border-bottom: 1px solid var(--chat-border); color: var(--chat-text); text-decoration: none; }
.chat-person-row, .chat-person-row:hover, .chat-person-row:focus, .chat-person-row * { text-decoration: none; }
.chat-person-row:hover { background: var(--chat-surface-hover); }
.chat-person-row:focus-visible { outline: 2px solid var(--chat-accent); outline-offset: -2px; }
.chat-person-row.selected, .chat-person-row.selected:hover { background: var(--chat-surface-selected); box-shadow: inset 3px 0 var(--chat-accent); }
/* A row whose conversation is loading keeps its look, because dimming it made every switch flicker. aria-busy stays for assistive tech */

.chat-avatar { position: relative; flex: 0 0 auto; display: block; width: 48px; height: 48px; overflow: hidden; border-radius: 50%; background: #6b56c9; color: #fff; line-height: 48px; text-align: center; font-size: 15px; font-weight: 600; }
.chat-avatar img { position: absolute; z-index: 1; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; }
.chat-avatar-initials { display: block; }

.chat-person-main { flex: 1; min-width: 0; }
.chat-person-topline, .chat-person-details { display: flex; align-items: center; gap: 8px; min-width: 0; }
.chat-person-name { flex: 1; overflow: hidden; color: var(--chat-text-heading); font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.chat-person-details { margin-top: 3px; color: var(--chat-text-muted); font-size: 12px; }
.chat-person-role, .chat-list-read-only { padding: 2px 7px; border-radius: 10px; background: var(--chat-accent-soft); white-space: nowrap; }
.chat-person-role:empty { display: none; }
/* On the selected row the pill's usual tint would vanish into the row's, so a deeper tint keeps it a pill rather than a white patch */
.chat-person-row.selected .chat-person-role { background: #d8e5fa; }
.chat-person-context { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- conversation list ---------- */

.chat-list-items { flex: 1 1 auto; min-height: 0; overflow-y: auto; }
.chat-list-page.is-empty .chat-list-items { flex: 0 0 auto; }
.chat-list-row.unread { background: var(--chat-surface-unread); }
.chat-list-row.unread .chat-list-preview { color: var(--chat-text-heading); font-weight: 600; }
.chat-list-row.read-only { opacity: .78; }
.chat-list-time { flex: 0 0 auto; color: var(--chat-text-faint); font-size: 12px; }
.chat-list-read-only { color: var(--chat-warning-text); background: var(--chat-warning-surface); }
.chat-list-unread { flex: 0 0 auto; min-width: 20px; margin-left: auto; padding: 2px 6px; border-radius: 10px; color: #fff; background: var(--chat-accent); font-size: 11px; font-weight: 600; text-align: center; }
.chat-list-page.no-preview .chat-list-preview { display: none; }
.chat-list-preview { display: block; display: -webkit-box; overflow: hidden; margin-top: 4px; color: var(--chat-text-muted); line-height: 19px; -webkit-box-orient: vertical; -webkit-line-clamp: 1; }

/* Empty state shared by the list ("no conversations") and the search ("type a name", "nobody matched") */
.chat-side-empty { flex: 1 1 auto; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 48px var(--chat-side-padding); text-align: center; color: var(--chat-text-muted); }
.chat-side-empty .fa { color: #b9c8df; font-size: 40px; }
.chat-side-empty .title { color: var(--chat-text-heading); font-size: 16px; font-weight: 600; }
.chat-side-empty p { margin: 0; }
.chat-side-empty .classowl-button { width: auto; margin-top: 6px; }

/* The paging bar of the side column, list and search alike. The composer opposite is 1 + 20 + 22 + 14 + 28 + 12 = 97px for a one-line draft */
.chat-side-pagination { flex: 0 0 auto; display: flex; justify-content: space-between; margin: 0; padding: 13px var(--chat-side-padding); border-top: 1px solid var(--chat-border); }
.chat-side-pagination .classowl-button { width: auto; margin: 0; }
.chat-side-pagination .classowl-button:disabled { cursor: default; }

/* ---------- find a person ---------- */

/* The back arrow is a quiet icon whose glyph lines up with the left content edge, like the calendar in the list */
.chat-side-header-row > .chat-search-back { margin-left: -6px; margin-right: 2px; }
.chat-search-form { margin-top: 12px; }
.chat-search-query { margin: 0; }
/* Filters sit two per row, and a filter alone in its row takes the full width. All 36px tall, 3px radius like the input above */
.chat-search-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chat-search-field { flex: 1 1 calc(50% - 4px); min-width: 0; margin: 0; }
.chat-search-multiselect > .drop-icon { border-radius: 3px; }
.chat-search-multiselect > .drop-icon > .frame > .title, .chat-search-multiselect > .drop-icon > .frame > .empty { font-size: 14px; }
.chat-search-multiselect.value-empty > .drop-icon > .frame > .empty { color: var(--chat-text); }

.chat-search-summary { flex: 0 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 18px; padding: 10px var(--chat-side-padding) 8px; color: var(--chat-text-muted); font-size: 12px; line-height: 18px; }
.chat-search-count strong { color: var(--chat-text-heading); }
.chat-search-clear { margin-left: auto; padding: 0; border: 0; background: none; color: var(--chat-accent); font-size: 12px; line-height: 18px; cursor: pointer; }
.chat-search-clear:hover { text-decoration: underline; }
.chat-search-results { flex: 0 1 auto; min-height: 0; overflow-y: auto; }
.chat-search-results:not(:empty) { border-top: 1px solid var(--chat-border); }
.chat-search-status { margin: 0; }
.chat-search-row { cursor: default; }
.chat-search-row.restricted .chat-person-name { color: var(--chat-text-muted); }
.chat-search-restriction { display: block; margin-top: 4px; color: var(--chat-warning-text); font-size: 12px; }
.chat-search-action { flex: 0 0 auto; min-width: 88px; }
.chat-search-action:disabled { opacity: .5; cursor: default; }

/* ---------- conversation pane ---------- */

.chat-empty-pane { display: flex; flex: 1; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 32px; color: #71829d; font-size: 16px; text-align: center; }
.chat-empty-pane .fa { color: #b9c8df; font-size: 48px; }

.chat-conversation { display: flex; flex: 1; flex-direction: column; width: 100%; min-height: 0; margin: 0; }
/* Avatar and name are one button that opens the info card, and the header is the card's anchor */
.chat-conversation-header { position: relative; flex: 0 0 auto; display: flex; align-items: center; gap: 14px; margin: 0; padding: 14px 24px; border-bottom: 1px solid var(--chat-border); background: var(--chat-surface); }
.chat-conversation-partner { flex: 1; display: flex; align-items: center; gap: 14px; min-width: 0; border-radius: 6px; cursor: pointer; }
.chat-conversation-partner:hover .chat-conversation-title { color: var(--chat-accent); }
.chat-conversation-partner:focus-visible { outline: 2px solid var(--chat-accent); outline-offset: 2px; }
.chat-profile-card { position: absolute; z-index: 6; top: calc(100% - 6px); left: 24px; width: 320px; padding: 20px; border: 1px solid #e5e5e5; border-radius: 12px; background: var(--chat-surface); box-shadow: 0 8px 24px rgba(31, 60, 119, .14); }
.chat-profile-card-close { position: absolute; top: 10px; right: 10px; }
.chat-profile-card-head { display: flex; align-items: center; gap: 14px; padding-bottom: 16px; border-bottom: 1px solid var(--chat-border); }
.chat-profile-card-avatar { width: 56px; height: 56px; line-height: 56px; font-size: 18px; }
.chat-profile-card-who { min-width: 0; }
.chat-profile-card-name { overflow: hidden; color: var(--chat-text-heading); font-size: 17px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.chat-profile-card-role { display: inline-block; margin-top: 6px; font-size: 12px; }
.chat-profile-card-role:empty { display: none; }
.chat-profile-card-rows { margin: 0; padding: 0; }
.chat-profile-card-rows > div { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--chat-border); font-size: 13px; }
.chat-profile-card-rows > div:last-child { border-bottom: 0; padding-bottom: 0; }
.chat-profile-card-rows dt { flex: 0 0 auto; margin: 0; color: var(--chat-text-muted); font-weight: 400; }
.chat-profile-card-rows dd { flex: 0 1 auto; margin: 0; overflow: hidden; color: var(--chat-text-heading); font-weight: 600; text-align: right; text-overflow: ellipsis; }
.chat-profile-card-link { display: block; margin-top: 14px; color: var(--chat-accent); font-size: 13px; font-weight: 600; }
.chat-conversation-info { margin-right: -6px; }
.chat-conversation-back { display: none; }
.chat-conversation-avatar { width: 44px; height: 44px; line-height: 44px; font-size: 16px; }
.chat-conversation-title { flex: 1; min-width: 0; margin: 0; overflow: hidden; color: var(--chat-text-heading); font-size: 20px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }

/* The history is the pane's only scroll container */
/* Same 24px side padding as the header and the composer, so avatar, bubbles and field share one left edge */
.chat-conversation-history { display: flex; flex: 1 1 auto; flex-direction: column; min-height: 0; overflow-y: auto; padding: 16px 24px 24px; }
.chat-conversation-history .classowl-button.chat-conversation-load-older { align-self: center; flex: 0 0 auto; margin-bottom: 12px; }
.chat-conversation-status { flex: 0 0 auto; text-align: center; }
.chat-conversation-status[data-state] { padding: 8px 0 12px; }
.chat-conversation-status[data-state="loading"] { flex: 1 1 auto; display: grid; place-items: center; padding: 0; color: var(--chat-text-faint); font-size: 24px; }
.chat-conversation-status[data-state="loading"] .fa-spinner { margin: 0; }
.chat-conversation-status[data-state="loading"] + .chat-conversation-messages { display: none; }
.chat-conversation-messages { display: flex; flex: 0 0 auto; flex-direction: column; gap: 10px; margin-top: auto; }
.chat-conversation.is-empty .chat-conversation-messages { display: none; }
.chat-conversation-empty { display: grid; flex: 1 1 auto; place-items: center; padding: 28px; text-align: center; color: var(--chat-text-muted); }

.chat-day { display: flex; align-items: center; gap: 12px; margin: 10px 0 4px; color: var(--chat-text-faint); font-size: 12px; }
.chat-day::before, .chat-day::after { content: ""; flex: 1; border-top: 1px solid var(--chat-border); }
.chat-day span { flex: 0 0 auto; }
.chat-unread-separator { color: var(--chat-accent); font-weight: 600; }
.chat-unread-separator::before, .chat-unread-separator::after { border-top-color: var(--chat-accent); }
/* Last child of the scrolling history, where sticky keeps it in view while the user is scrolled up */
.chat-jump-new { position: sticky; bottom: 4px; z-index: 2; align-self: flex-end; flex: 0 0 auto; display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; padding: 6px 12px; border: 1px solid var(--chat-border); border-radius: 999px; background: var(--chat-surface); color: var(--chat-accent); box-shadow: 0 4px 12px rgba(31, 60, 119, .14); cursor: pointer; font-size: 13px; font-weight: 600; }
.chat-jump-new:hover { background: var(--chat-surface-alt); }
.chat-jump-count:empty { display: none; }

.chat-message { position: relative; align-self: flex-start; display: flex; flex-direction: column; width: fit-content; max-width: 72%; padding: 10px 14px; border: 1px solid #e5ebf4; border-radius: var(--chat-radius) var(--chat-radius) var(--chat-radius) 4px; background: var(--chat-surface); color: #314a70; box-shadow: 0 2px 8px rgba(31, 60, 119, .05); }
.chat-message.mine { align-self: flex-end; border-color: var(--chat-accent); border-radius: var(--chat-radius) var(--chat-radius) 4px var(--chat-radius); background: var(--chat-accent); color: #fff; }
.chat-message.mine.failed { border-color: var(--chat-danger-text); background: #c03c38; }
.chat-message.deleted .chat-message-body { color: var(--chat-text-faint); font-style: italic; }
.chat-message.mine.deleted .chat-message-body { color: rgba(255, 255, 255, .75); }
.chat-message-body { overflow-wrap: anywhere; white-space: pre-wrap; line-height: 20px; }
/* Links in a message are real links, and long ones wrap like the text around them */
.chat-message-body a { color: inherit; text-decoration: underline; overflow-wrap: anywhere; }
.chat-message.mine .chat-message-body a { color: #fff; }
/* Slots for attachments and a per-message menu; the actions slot holds the copy button (renderParts in chat-conversation-view.js) */
.chat-message-attachments:empty, .chat-message-actions:empty { display: none; }
.chat-message-actions { position: absolute; top: 4px; right: -32px; display: flex; gap: 2px; opacity: 0; transition: opacity 150ms ease; }
.chat-message.mine .chat-message-actions { right: auto; left: -32px; }
.chat-message:hover .chat-message-actions, .chat-message:focus-within .chat-message-actions { opacity: 1; }
.chat-message-action { font-size: 14px; }
/* A message continuing the previous one from the same sender sits closer to it. Every bubble keeps its time, because hiding it on the last message of a run read as missing */
.chat-message-continued { margin-top: -6px; }
.chat-message-meta { display: flex; align-items: center; justify-content: flex-end; gap: 6px; margin-top: 4px; color: #7c8da8; font-size: 11px; }
.chat-message.mine .chat-message-meta { color: rgba(255, 255, 255, .85); }
.chat-message-state { display: inline-flex; align-items: center; }
.chat-message-state:empty { display: none; }
.chat-message-state .fa + .fa { margin-left: -6px; }
/* Read is the state the sender waits for, so it is the opaque one. Both ticks
   sit on the blue bubble, where every legible colour is a shade of white, so
   the hue cannot carry the difference - the count does, and opacity ranks
   them. #bfe3ff measured 2.89:1 against the bubble, under the 3:1 WCAG 1.4.11
   asks of a graphical element that means something */
.chat-message-state[data-state="read"] { color: #fff; }
.chat-message.mine.failed .chat-message-state { color: #fff; }
.chat-message .classowl-button.chat-message-retry { align-self: flex-end; height: 26px; margin-top: 8px; padding: 0 10px; line-height: 26px; font-size: 12px; }
/* The glass button is muted blue for a light background, which on the failed
   bubble measured 1.02:1 - the outline showed and the word did not. Solid
   white with the danger red on it reads as an action and clears AA */
.chat-message.mine.failed .classowl-button.chat-message-retry { color: var(--chat-danger-text); border-color: transparent; background: #fff; }

.chat-conversation-read-only { flex: 0 0 auto; padding: 12px 24px; border-top: 1px solid var(--chat-border); color: var(--chat-text-muted); background: var(--chat-surface); text-align: center; }
.chat-conversation-read-only .fa { margin-right: 6px; }

/*
   The composer is the bottom strip of the pane, under a 1px line, with no box
   inside a box: the draft on top, the toolbar under it. The textarea grows
   with its content up to five lines (chat-conversation-view.js sets the
   height) and the toolbar keeps its place under the text. Emoji and microphone
   sit left (28px squares, 4px apart), the Enter hint and send sit right - a
   quiet grey arrow while the field is empty, a blue square once there is text,
   which is .has-text set by the view alongside the disabled flag. There is no
   frame and so no focus ring; the caret shows the focus.

   One line: 1 + 20 + 22 + 14 + 28 + 12 = 97px. The text starts 24px from the
   left, on the bubbles' edge, and the tool glyphs sit on that same edge: a
   28px button holds a 12 to 14px glyph, so the bar is inset 16px left and 17px
   right, with the send glyph on the right edge
*/
.chat-composer { position: relative; flex: 0 0 auto; margin: 0; padding: 0; border-top: 1px solid var(--chat-border); background: var(--chat-surface); }
/* 20px top + 22px line = 42px for one line, 20 + 5 x 22 = 130px at most; keep in step with COMPOSER_MAX_HEIGHT_PX */
.chat-composer-input { display: block; box-sizing: border-box; width: 100%; height: 42px; min-height: 42px; max-height: 130px; margin: 0; padding: 20px 24px 0; border: 0; border-radius: 0; background: transparent; color: var(--chat-text); font-size: 14px; line-height: 22px; resize: none; overflow-y: auto; outline: none; box-shadow: none; }
.chat-composer-input::placeholder { color: var(--chat-text-faint); }
.chat-composer-bar { display: flex; align-items: center; height: 28px; margin: 14px 17px 12px 16px; }
.chat-composer-tools { display: flex; flex: 1 1 auto; align-items: center; gap: 4px; }
.chat-composer-send { display: flex; flex: 0 0 auto; align-items: center; justify-content: center; width: 28px; height: 28px; margin: 0; padding: 0; border: 0; border-radius: 3px; background: transparent; color: var(--chat-text-faint); font-size: 14px; line-height: 1; cursor: default; transition: background-color 150ms ease, color 150ms ease; }
/* Optical: the smiley's ink is a circle and the microphone's mass sits high, so 1px up puts them on one line */
[data-chat-emoji] .fa { position: relative; top: -1px; }
/* While dictation runs the microphone turns red and breathes, until the browser stops listening */
.chat-composer-tool.is-listening, .chat-composer-tool.is-listening:hover { color: var(--chat-danger-text); background: var(--chat-danger-surface); animation: chat-listening 1.2s ease-in-out infinite; }
@keyframes chat-listening { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }
/* A placeholder for a tool that is not there yet: the glyph shows, nothing happens, the title says why */
.chat-composer-tool.is-placeholder { color: #c3cddd; cursor: default; }
.chat-composer-tool.is-placeholder:hover { color: #c3cddd; background: transparent; }
.chat-composer.has-text .chat-composer-send { color: #fff; background: var(--chat-accent); cursor: pointer; }
.chat-composer.has-text .chat-composer-send:hover { background: #2470d6; }
.chat-composer-send:focus-visible { outline: 2px solid var(--chat-accent); outline-offset: 1px; }
.chat-composer-count { flex: 0 0 auto; margin-right: 12px; color: var(--chat-text-faint); font-size: 11px; line-height: 16px; font-variant-numeric: tabular-nums; }
.chat-composer-count.is-near { color: var(--chat-warning-text); }
.chat-composer-count.is-full { color: var(--chat-danger-text); font-weight: 600; }
.chat-composer-hint { flex: 0 1 auto; margin-right: 12px; overflow: hidden; color: var(--chat-text-faint); font-size: 11px; line-height: 16px; white-space: nowrap; text-overflow: ellipsis; }
/* The emoji picker: eight 32px cells per row, above the composer, on the left edge of the toolbar */
.chat-composer-emoji { position: absolute; left: 16px; bottom: calc(100% + 6px); z-index: 5; display: grid; grid-template-columns: repeat(8, 32px); gap: 2px; box-sizing: border-box; padding: 8px; border: 1px solid #e5e5e5; border-radius: 3px; background: var(--chat-surface); box-shadow: 0 4px 16px rgba(31, 60, 119, 0.12); }
.chat-composer-emoji button { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; margin: 0; padding: 0; border: 0; border-radius: 3px; background: transparent; font-size: 20px; line-height: 1; cursor: pointer; }
.chat-composer-emoji button:hover, .chat-composer-emoji button:focus-visible { background: var(--chat-surface-alt); outline: none; }

/* ---------- phones: one column at a time ---------- */

@media screen and (max-width: 800px) {
    .chats-page { padding: 12px; }
    .chats-page-frame { padding: 0; }
    .chat-workspace { display: block; height: auto; min-height: 0; }
    .chat-workspace-side { display: block; min-height: 0; border-right: 0; }
    .chat-list-page, .chat-search-page { height: auto; }
    .chat-list-items, .chat-search-results { overflow: visible; }
    .chat-workspace-conversation { min-height: calc(100vh - 150px); }
    .chat-workspace[data-chat-active="1"] .chat-workspace-side,
    .chat-workspace[data-chat-active="0"] .chat-workspace-conversation { display: none; }
    .chat-conversation-back { display: inline-flex; margin-left: -6px; }
    .chat-conversation-history { overflow: visible; padding: 12px 16px 16px; }
    .chat-side-header { padding: 14px 16px; }
    .chat-person-row { min-height: 72px; padding: 12px 16px; gap: 10px; }
    .chat-person-context { display: none; }
    .chat-message { max-width: 92%; }
    .chat-conversation-header { padding: 12px 16px; }
    .chat-composer-input { padding: 16px 16px 0; height: 38px; min-height: 38px; max-height: 126px; }
    .chat-composer-bar { margin: 8px 9px 12px 8px; }
    .chat-composer-hint { display: none; }
}