/* AI chat tab */
.dashboard-page .main-content:has(> #content-area > .aic) { padding: 16px 20px; }
.aic { --aic-r: 12px; display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); min-height: 440px; border: 1px solid var(--c-line-soft); border-radius: var(--aic-r); background: var(--c-surface-2); overflow: hidden; position: relative; }
.aic button { font: inherit; color: inherit; cursor: pointer; }
.aic button:disabled { cursor: not-allowed; opacity: .45; }
.aic :focus-visible { outline: 2px solid var(--c-brand); outline-offset: 2px; }
.aic.is-drop::after { content: ''; position: absolute; inset: 8px; border: 2px dashed var(--c-brand); border-radius: var(--aic-r); background: rgba(143, 207, 160, .06); pointer-events: none; z-index: 5; }

.aic-side { grid-column: 1; grid-row: 1 / -1; width: 272px; display: flex; flex-direction: column; gap: 10px; padding: 14px 12px; border-right: 1px solid var(--c-line-soft); background: var(--c-bg-deep); min-height: 0; }
.aic-side-top { display: flex; gap: 8px; }
.aic-new { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; height: 40px; border-radius: 10px; border: 1px solid var(--c-line); background: var(--c-surface-1); font-size: 14px; font-weight: 500; transition: border-color .15s, background .15s; }
.aic-new:hover { border-color: var(--c-brand); background: var(--c-surface-3); }
.aic-side-close { display: none; }
.aic-search { display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 10px; border: 1px solid var(--c-line-soft); border-radius: 9px; background: var(--c-surface-2); color: var(--c-ink-dim); }
.aic-search:focus-within { border-color: var(--c-brand); }
.aic-search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--c-ink); font-size: 13px; }
.aic-list { flex: 1; min-height: 0; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; margin: 0 -4px; padding: 0 4px; scrollbar-width: thin; }
.aic-group { padding: 12px 8px 4px; font-size: 11px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--c-ink-dim); }
.aic-item { display: flex; flex-direction: column; gap: 2px; width: 100%; padding: 8px 10px; border: 1px solid transparent; border-radius: 9px; background: transparent; text-align: left; transition: background .12s; }
.aic-item:hover { background: var(--c-surface-1); }
.aic-item.is-active { background: var(--c-surface-3); border-color: var(--c-line-soft); }
.aic-item-title { display: flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--c-ink); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-item-meta { font-size: 11.5px; color: var(--c-ink-dim); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-dot { flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--c-brand); animation: aic-pulse 1.2s ease-in-out infinite; }
.aic-list-empty { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 28px 8px; text-align: center; font-size: 13px; color: var(--c-ink-dim); }
.aic-list-skel, .aic-msgs-skel { display: flex; flex-direction: column; gap: 10px; padding: 8px 4px; }
.aic-list-skel .ui-skeleton { height: 40px; }
.aic-msgs-skel { max-width: 760px; width: 100%; margin: 0 auto; padding-top: 24px; }
.aic-msgs-skel .ui-skeleton { height: 64px; }
.aic-msgs-skel .ui-skeleton:nth-child(2) { width: 70%; margin-left: auto; }
.aic-link { border: 0; background: none; color: var(--c-brand) !important; text-decoration: underline; font-size: 13px; }
.aic-backdrop { display: none; }

.aic-main { grid-column: 2; grid-row: 2; min-width: 0; display: flex; flex-direction: column; min-height: 0; }
.aic-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--c-line-soft); }
.aic-menu { display: none; }
.aic-head-text { flex: 1; min-width: 0; }
.aic-head-text h2 { margin: 0; font-size: 16px; font-weight: 600; color: var(--c-ink); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-head-text p { margin: 2px 0 0; font-size: 12px; color: var(--c-ink-dim); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-rename { width: 100%; max-width: 420px; height: 30px; padding: 0 8px; border: 1px solid var(--c-brand); border-radius: 7px; background: var(--c-surface-2); color: var(--c-ink); font-size: 15px; }
.aic-tools { display: flex; gap: 2px; flex: none; }
.aic-icon { display: inline-grid; place-items: center; width: 36px; height: 36px; flex: none; border: 0; border-radius: 9px; background: transparent; color: var(--c-ink-soft) !important; transition: background .12s, color .12s; }
.aic-icon:hover { background: var(--c-surface-3); color: var(--c-ink) !important; }
.aic-icon[aria-pressed="true"] { background: var(--c-brand-soft); color: var(--c-brand) !important; }
/* The chat list toggle exists only on phones (the list is always visible on PC). */
.aic .aic-icon.aic-menu, .aic .aic-icon.aic-side-close { display: none; }
@media (max-width: 768px) { .aic .aic-icon.aic-menu, .aic .aic-icon.aic-side-close { display: inline-grid; } }
/* Simple / Advanced tabs (same look as the top-up method tabs) */
/* Tabs row spans the whole chat window (above the chat list and the conversation). */
/* PC: title + tabs only over the conversation, the chat list runs full height beside them. */
.aic-top { grid-column: 2; grid-row: 1; display: flex; flex-direction: column; gap: 8px; padding: 8px; border-bottom: 1px solid var(--c-line-soft); }
/* Chat title row (menu · title · tools) sits above the tabs. */
.aic-top .aic-head { padding: 0 0 0 4px; border-bottom: 0; }
.aic-modes { display: block; }
.aic-mode-tabs { width: 100%; }
.aic-mode-tabs button { border: 0; background: transparent; font-weight: 500; }
.aic-mode-tabs button.is-active { background: transparent; box-shadow: none; }

/* Toolbar inside the input box: attach · model · reasoning · internet … mic · send */
.aic-round { display: inline-grid; place-items: center; flex: none; width: 34px; height: 34px; border: 1px solid transparent; border-radius: 50%; background: transparent; color: var(--c-ink-dim) !important; transition: background .15s, color .15s, border-color .15s; }
.aic-round:hover { background: var(--c-surface-3); color: var(--c-ink) !important; }
.aic-round svg { pointer-events: none; }
.aic-round[hidden] { display: none; }
.aic-web.is-on { background: var(--c-brand-soft); border-color: color-mix(in srgb, var(--c-brand) 45%, transparent); color: var(--c-brand) !important; }
.aic-mic.is-rec { background: rgba(238, 125, 133, .16); border-color: rgba(238, 125, 133, .5); color: var(--c-red) !important; animation: aic-pulse 1.2s ease-in-out infinite; }
.aic-bar-controls { display: flex; align-items: center; gap: 4px; min-width: 0; flex: 0 1 auto; }
.aic-bar-gap { flex: 1 1 0; min-width: 0; }
.aic-pill { min-width: 0; }
.aic-pill .select-menu { display: block; position: relative; min-width: 0; }
.aic-pill .select-trigger { height: 34px; padding: 0 10px; gap: 6px; border: 1px solid var(--c-line-soft); border-radius: 999px; background: transparent; font-size: 13px; color: var(--c-ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.aic-pill .select-trigger:hover { background: var(--c-surface-3); color: var(--c-ink); }
.aic-pill .select-trigger::after { width: 5px; height: 5px; }
.aic-pill .select-icon { width: 16px; height: 16px; }
.aic-pill-model { flex: 0 1 230px; }
.aic-pill-effort { flex: 0 0 auto; }
.aic-pill select:not(.select-native) { height: 34px; max-width: 100%; padding: 0 8px; border: 1px solid var(--c-line-soft); border-radius: 999px; background: transparent; color: var(--c-ink); }

/* Advanced panel */
.aic-adv { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 14px; max-height: 42%; overflow-y: auto; padding: 12px 16px; border-bottom: 1px solid var(--c-line-soft); background: var(--c-surface-1); scrollbar-width: thin; }
.aic-adv[hidden] { display: none; }
.aic-adv-block { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.aic-adv-label { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; font-size: 12px; font-weight: 500; color: var(--c-ink-soft); }
.aic-adv-note { font-size: 11.5px; font-weight: 400; color: var(--c-ink-dim); }
.aic-adv small { font-size: 11.5px; line-height: 1.4; color: var(--c-ink-dim); }
.aic-adv textarea { width: 100%; min-height: 66px; max-height: 180px; padding: 8px 10px; border: 1px solid var(--c-line-soft); border-radius: 9px; background: var(--c-surface-2); color: var(--c-ink); font: inherit; font-size: 13.5px; resize: vertical; }
.aic-adv textarea:focus { border-color: var(--c-brand); outline: 0; }
.aic-presets { display: flex; flex-wrap: wrap; gap: 6px; }
.aic-chip-btn { height: 28px; padding: 0 10px; border: 1px solid var(--c-line); border-radius: 999px; background: var(--c-surface-2); font-size: 12px; color: var(--c-ink-soft) !important; }
.aic-chip-btn:hover { border-color: var(--c-brand); color: var(--c-ink) !important; }
.aic-adv-field { display: flex; flex-direction: column; gap: 5px; }
.aic-adv-field > label { font-size: 12px; font-weight: 500; color: var(--c-ink-soft); }
.aic-adv-field b { font-weight: 600; color: var(--c-ink); font-variant-numeric: tabular-nums; }
.aic-adv input[type="range"] { width: 100%; accent-color: var(--c-brand); }
.aic-adv input[type="range"].is-auto { opacity: .5; }
.aic-adv .select-menu { display: block; position: relative; }
.aic-adv .select-trigger { height: 34px; padding: 0 10px; font-size: 13px; }
.aic-adv-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.aic-adv-row > :first-child { flex: 1 1 140px; min-width: 0; }
.aic-switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--c-ink-soft); cursor: pointer; }
.aic-switch input { width: 16px; height: 16px; accent-color: var(--c-brand); }
.aic-sources { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.aic-sources-label { display: inline-flex; align-items: center; gap: 5px; margin-right: 2px; font-size: 12px; color: var(--c-ink-dim); }
.aic-source { display: inline-flex; align-items: center; gap: 6px; max-width: 220px; height: 26px; padding: 0 9px 0 4px; border: 1px solid var(--c-line); border-radius: 999px; background: var(--c-surface-1); color: var(--c-ink-soft); font-size: 12px; text-decoration: none; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-source:hover { border-color: var(--c-brand); color: var(--c-ink); }
.aic-source b { display: inline-grid; place-items: center; min-width: 18px; height: 18px; border-radius: 50%; background: var(--c-surface-3); font-size: 10.5px; font-weight: 600; color: var(--c-ink-soft); }
.aic-queries { margin: 0; font-size: 12px; color: var(--c-ink-dim); overflow-wrap: anywhere; }
/* Only the message list scrolls; the page stays put while the chat tab is open. */
html.aic-lock, html.aic-lock body { overflow: hidden; overscroll-behavior: none; }
.aic-msgs-wrap { position: relative; flex: 1 1 0; min-height: 0; display: flex; flex-direction: column; }
.aic-msgs { flex: 1 1 0; min-height: 0; overflow-y: auto; overflow-x: hidden; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; padding: 20px 16px 8px; display: flex; flex-direction: column; gap: 18px; scrollbar-width: thin; }
.aic-msgs > * { flex: none; }
.aic-msgs-wrap > .aic-msgs { position: relative; z-index: 0; }
.aic-jump { position: absolute; right: 50%; bottom: 12px; transform: translateX(50%); z-index: 4; display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--c-line); border-radius: 50%; background: var(--c-surface-3); color: var(--c-ink) !important; box-shadow: 0 6px 20px rgba(0, 0, 0, .45); }
.aic-jump:hover { border-color: var(--c-brand); }
.aic-jump svg, .aic-icon svg, .aic-act svg { pointer-events: none; }
.aic-jump[hidden] { display: none; }

.aic-logo { display: inline-grid; place-items: center; flex: none; width: 26px; height: 26px; border-radius: 8px; background: var(--c-surface-3); border: 1px solid var(--c-line-soft); overflow: hidden; }
.aic-logo img { width: 62%; height: 62%; object-fit: contain; }
.aic-logo-letter { font-size: 12px; font-weight: 600; color: var(--c-ink-soft); }
.aic-item { flex-direction: row !important; align-items: center; gap: 10px !important; }
.aic-item-logo { width: 30px; height: 30px; border-radius: 9px; }
.aic-item-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.aic-welcome-logo { width: 56px; height: 56px; border-radius: 16px; }
.aic-welcome-model { margin: 8px 0 0 !important; font-size: 13px !important; font-weight: 600; color: var(--c-ink-soft) !important; }
.select-trigger.has-icon, .select-popover button.has-icon { display: flex; align-items: center; gap: 9px; justify-content: flex-start; }
.select-trigger.has-icon::after { margin-left: auto; }
.select-icon { width: 18px; height: 18px; flex: none; object-fit: contain; }
.aic-msg { width: 100%; max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 6px; }
.aic-user { align-items: flex-end; }
.aic-bubble { max-width: min(85%, 640px); padding: 10px 14px; border-radius: 16px 16px 4px 16px; background: var(--c-surface-3); border: 1px solid var(--c-line-soft); color: var(--c-ink); font-size: 14.5px; line-height: 1.55; overflow-wrap: anywhere; }
.aic-text { white-space: normal; }
.aic-bot-head { display: flex; align-items: center; gap: 8px; }
.aic-bot-name { font-size: 12.5px; font-weight: 600; color: var(--c-ink-soft); }
.aic-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; min-height: 28px; opacity: .55; transition: opacity .15s; }
.aic-msg:hover .aic-actions, .aic-msg:focus-within .aic-actions { opacity: 1; }
.aic-act { display: inline-grid; place-items: center; width: 30px; height: 28px; border: 0; border-radius: 7px; background: transparent; color: var(--c-ink-dim) !important; }
.aic-act:hover { background: var(--c-surface-3); color: var(--c-ink) !important; }
.aic-act.is-done { color: var(--c-brand) !important; }
.aic-meta { margin-left: 6px; font-size: 11.5px; color: var(--c-ink-dim); font-variant-numeric: tabular-nums; }

.aic-md { color: var(--c-ink); font-size: 14.5px; line-height: 1.65; overflow-wrap: anywhere; }
.aic-md > :first-child { margin-top: 0; }
.aic-md > :last-child { margin-bottom: 0; }
.aic-md p, .aic-md ul, .aic-md ol, .aic-md blockquote, .aic-md .aic-table, .aic-md .aic-code { margin: 0 0 12px; }
.aic-md h3, .aic-md h4, .aic-md h5, .aic-md h6 { margin: 18px 0 8px; font-weight: 600; line-height: 1.3; color: var(--c-ink); }
.aic-md h3 { font-size: 18px; } .aic-md h4 { font-size: 16px; } .aic-md h5, .aic-md h6 { font-size: 15px; }
.aic-md ul, .aic-md ol { padding-left: 1.4rem; }
.aic-md ul { list-style: disc; } .aic-md ol { list-style: decimal; }
.aic-md li { margin: 3px 0; }
.aic-md a { color: var(--c-brand); text-decoration: underline; }
.aic-md strong { font-weight: 600; }
.aic-md em { font-style: italic; }
.aic-md hr { border: 0; border-top: 1px solid var(--c-line); margin: 16px 0; }
.aic-md blockquote { padding: 2px 0 2px 12px; border-left: 3px solid var(--c-line-strong); color: var(--c-ink-soft); }
.aic-md :not(pre) > code { padding: 1px 5px; border-radius: 5px; background: var(--c-surface-3); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .88em; }
.aic-code { border: 1px solid var(--c-line-soft); border-radius: 10px; background: var(--c-bg-deep); overflow: hidden; }
.aic-code-head { display: flex; align-items: center; justify-content: space-between; padding: 4px 6px 4px 12px; border-bottom: 1px solid var(--c-line-soft); font-size: 11.5px; color: var(--c-ink-dim); }
.aic-code-copy { height: 26px; padding: 0 9px; border: 0; border-radius: 6px; background: transparent; color: var(--c-ink-soft) !important; font-size: 12px !important; }
.aic-code-copy:hover { background: var(--c-surface-3); }
.aic-code-copy.is-done { color: var(--c-brand) !important; }
.aic-code pre { margin: 0; padding: 12px 14px; overflow-x: auto; }
.aic-code code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; line-height: 1.55; color: var(--c-ink); white-space: pre; }
.aic-table { overflow-x: auto; border: 1px solid var(--c-line-soft); border-radius: 8px; }
.aic-table table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.aic-table th, .aic-table td { padding: 7px 10px; border-bottom: 1px solid var(--c-line-soft); text-align: left; }
.aic-table th { background: var(--c-surface-1); font-weight: 600; }

.aic-reason { border: 1px solid var(--c-line-soft); border-radius: 10px; background: var(--c-surface-1); }
.aic-reason summary { display: flex; align-items: center; gap: 6px; padding: 7px 10px; font-size: 12.5px; color: var(--c-ink-soft); cursor: pointer; list-style: none; }
.aic-reason summary::-webkit-details-marker { display: none; }
.aic-reason summary::after { content: ''; width: 6px; height: 6px; margin-left: 2px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(-45deg); transition: transform .15s; }
.aic-reason[open] summary::after { transform: rotate(45deg); }
.aic-reason-body { max-height: 320px; overflow-y: auto; padding: 0 12px 10px; font-size: 13px; line-height: 1.55; color: var(--c-ink-dim); }
.aic-reason-body .aic-md, .aic-reason-body p { font-size: 13px; color: var(--c-ink-dim); }
.aic-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--c-ink-dim); }
.aic-typing { display: inline-flex; gap: 3px; }
.aic-typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--c-brand); animation: aic-pulse 1s ease-in-out infinite; }
.aic-typing i:nth-child(2) { animation-delay: .15s; } .aic-typing i:nth-child(3) { animation-delay: .3s; }
.aic-error { display: flex; align-items: flex-start; gap: 8px; padding: 9px 12px; border: 1px solid rgba(238, 125, 133, .35); border-radius: 10px; background: rgba(238, 125, 133, .08); color: var(--c-red); font-size: 13.5px; }
.aic-error svg { flex: none; margin-top: 2px; }
.aic-stopped { font-size: 12.5px; color: var(--c-ochre); }
@keyframes aic-pulse { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

.aic-atts { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.aic-bubble .aic-atts:last-child { margin-bottom: 0; }
.aic-att { display: flex; align-items: center; gap: 8px; max-width: 240px; padding: 5px 10px 5px 5px; border: 1px solid var(--c-line); border-radius: 10px; background: var(--c-surface-2); text-align: left; }
.aic-att:hover { border-color: var(--c-brand); }
.aic-att-thumb { display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 7px; overflow: hidden; background: var(--c-surface-3); color: var(--c-ink-dim); }
.aic-att-thumb img { width: 100%; height: 100%; object-fit: cover; }
.aic-att-name { min-width: 0; font-size: 12.5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-att-size { flex: none; font-size: 11px; color: var(--c-ink-dim); }
.aic-lightbox { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 24px; background: rgba(0, 0, 0, .82); }
.aic-lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; }
.aic-lightbox .aic-icon { position: absolute; top: 14px; right: 14px; background: var(--c-surface-3); color: var(--c-ink) !important; }

.aic-welcome { margin: auto; max-width: 520px; padding: 24px 8px; text-align: center; }
.aic-welcome h3 { margin: 14px 0 6px; font-size: 22px; font-weight: 600; color: var(--c-ink); }
.aic-welcome p { margin: 0; font-size: 14px; color: var(--c-ink-dim); }
.aic-tips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 18px; }
.aic-tip { padding: 8px 12px; border: 1px solid var(--c-line); border-radius: 999px; background: var(--c-surface-1); font-size: 13px; color: var(--c-ink-soft) !important; }
.aic-tip:hover { border-color: var(--c-brand); color: var(--c-ink) !important; }

.aic-edit { width: 100%; display: flex; flex-direction: column; gap: 8px; }
.aic-edit textarea { width: 100%; min-height: 96px; padding: 10px 12px; border: 1px solid var(--c-brand); border-radius: 10px; background: var(--c-surface-2); color: var(--c-ink); font: inherit; font-size: 14.5px; resize: vertical; }
.aic-edit-actions { display: flex; justify-content: flex-end; gap: 8px; }
.aic-btn { height: 34px; padding: 0 14px; border: 1px solid var(--c-line); border-radius: 8px; background: var(--c-surface-1); font-size: 13px; }
.aic-btn-primary { border-color: transparent; background: var(--c-brand); color: var(--c-bg-deep) !important; font-weight: 500; }

.aic-composer { padding: 10px 16px 12px; border-top: 1px solid var(--c-line-soft); background: var(--c-surface-1); }
.aic-files { display: flex; flex-wrap: wrap; gap: 6px; max-width: 780px; margin: 0 auto; }
.aic-files:not(:empty) { margin-bottom: 8px; }
.aic-chip { display: flex; align-items: center; gap: 8px; max-width: 260px; padding: 4px 4px 4px 4px; border: 1px solid var(--c-line); border-radius: 10px; background: var(--c-surface-2); }
.aic-chip-thumb { display: grid; place-items: center; width: 36px; height: 36px; flex: none; border-radius: 7px; overflow: hidden; background: var(--c-surface-3); color: var(--c-ink-dim); }
.aic-chip-thumb img { width: 100%; height: 100%; object-fit: cover; }
.aic-chip-text { display: flex; flex-direction: column; min-width: 0; font-size: 12.5px; }
.aic-chip-text span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-chip-text small { font-size: 11px; color: var(--c-ink-dim); }
.aic-chip-x { display: grid; place-items: center; width: 26px; height: 26px; flex: none; border: 0; border-radius: 6px; background: transparent; color: var(--c-ink-dim) !important; }
.aic-chip-x:hover { background: var(--c-surface-3); color: var(--c-ink) !important; }
.aic-spin { width: 16px; height: 16px; border: 2px solid var(--c-line); border-top-color: var(--c-brand); border-radius: 50%; animation: aic-spin .8s linear infinite; }
@keyframes aic-spin { to { transform: rotate(360deg); } }
.aic-box { max-width: 780px; margin: 0 auto; padding: 6px 6px 6px; border: 1px solid var(--c-line); border-radius: 16px; background: var(--c-surface-2); transition: border-color .15s; }
/* No green frame while typing: just a slightly brighter neutral border. */
.aic-box:focus-within { border-color: var(--c-line-strong, var(--c-line)); }
.aic .aic-box textarea:focus, .aic .aic-box textarea:focus-visible { outline: none; box-shadow: none; }
.aic-box textarea { display: block; width: 100%; min-height: 40px; max-height: 220px; padding: 8px 8px 4px; border: 0; outline: 0; background: transparent; color: var(--c-ink); font: inherit; font-size: 14.5px; line-height: 1.45; resize: none; }
.aic-box textarea::placeholder { color: var(--c-ink-dim); }
.aic-bar { display: flex; align-items: center; gap: 4px; min-width: 0; }
.aic-send { display: inline-grid; place-items: center; width: 36px; height: 36px; flex: none; border: 0; border-radius: 50%; background: var(--c-brand); color: var(--c-bg-deep) !important; transition: background .15s, opacity .15s; }
.aic-send svg { pointer-events: none; }
.aic-send:hover:not(:disabled) { background: #a3dbb2; }
.aic-send.is-stop { background: var(--c-red-solid); color: #fff !important; }
.aic-hint { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 14px; max-width: 780px; margin: 6px auto 0; font-size: 11.5px; color: var(--c-ink-dim); text-align: center; }
.aic-hint span:empty { display: none; }

/* Chat list as a drawer only on phones; on PC it is always visible (no hamburger). */
@media (max-width: 1100px) and (min-width: 769px) {
  .aic-side { width: 220px; }
  .aic-adv { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .aic-adv-system { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .aic-side { position: absolute; inset: 0 auto 0 0; z-index: 20; width: min(300px, 86%); transform: translateX(-102%); transition: transform .22s ease; box-shadow: 8px 0 30px rgba(0, 0, 0, .45); }
  .aic.list-open .aic-side { transform: none; }
  .aic-backdrop { display: block; position: absolute; inset: 0; z-index: 19; background: rgba(0, 0, 0, .55); opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s; }
  .aic.list-open .aic-backdrop { opacity: 1; visibility: visible; }
  .aic-side-close, .aic-menu { display: inline-grid; }
  .dashboard-page .main-content:has(> #content-area > .aic) { padding: 8px; }
  .aic { border-radius: 10px; grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .aic-main, .aic-top { grid-column: 1; }
  /* Phone: the chat list drawer covers the whole chat window, title and tabs included. */
  .aic-side { grid-row: 1 / -1; }
  .aic-top { padding: 6px; gap: 6px; }
  .aic-top .aic-head { padding: 0; }
  .aic-head { padding: 6px 8px 6px 6px; gap: 4px; }
  .aic-tools .aic-icon { width: 34px; height: 34px; }
  .aic-adv { grid-template-columns: minmax(0, 1fr); max-height: 46%; padding: 10px; }
  .aic-msgs { padding: 14px 10px 6px; gap: 14px; }
  .aic-bubble { max-width: 92%; font-size: 15px; }
  .aic-md { font-size: 15px; }
  .aic-actions { opacity: 1; }
  .aic-composer { padding: 6px 6px calc(6px + env(safe-area-inset-bottom)); }
  .aic-box { border-radius: 18px; }
  .aic-box textarea, .aic-adv textarea, .aic-edit textarea, .aic-search input { font-size: 16px; }
  .aic-pill-model { flex: 1 1 auto; }
  .aic-pill .select-trigger { padding: 0 8px; font-size: 12.5px; }
  .aic-pill-model .select-trigger { max-width: 46vw; }
  .aic-hint { display: none; }
}
/* Phone keyboard open: fixed layer over the visible viewport, composer right above the keyboard. */
.aic.is-kb { position: fixed; left: 0; right: 0; width: auto; z-index: 60; border-radius: 0; border: 0; }
.aic.is-kb .aic-modes, .aic.is-kb .aic-adv, .aic.is-kb .aic-side, .aic.is-kb .aic-backdrop { display: none; }
.aic.is-kb .aic-head { padding-top: 4px; padding-bottom: 4px; }
.aic.is-kb .aic-head-text p { display: none; }

/* Generation model picker (images / video) */
.aic-pill-gen { flex: 0 0 auto; }
.aic-pill-gen.is-off .select-trigger { opacity: .6; }
.aic-pill-gen .select-trigger { max-width: 170px; }

/* Math (KaTeX) */
.aic-md .katex { font-size: 1.08em; }
.aic-math { margin: .6em 0; overflow-x: auto; overflow-y: hidden; padding: 2px 0; scrollbar-width: thin; }
.aic-math .katex-display { margin: 0; }
.aic-math-src { font-family: var(--font-mono, ui-monospace, monospace); font-size: .92em; color: var(--c-ink-soft); }

/* Interactive blocks (sandboxed iframe) */
.aic-embed { margin: .7em 0; border: 1px solid var(--c-line-soft); border-radius: 10px; background: var(--c-surface-1); overflow: hidden; }
.aic-embed-frame { min-height: 60px; }
.aic-embed-frame:empty { height: 120px; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .03), transparent) var(--c-surface-1); background-size: 200% 100%; animation: aic-shimmer 1.4s linear infinite; }
.aic-embed-iframe { display: block; width: 100%; border: 0; background: transparent; color-scheme: dark; }
.aic-embed-src { border-top: 1px solid var(--c-line-soft); }
.aic-embed-src > summary { cursor: pointer; padding: 6px 12px; font-size: 12px; color: var(--c-ink-dim); list-style: none; user-select: none; }
.aic-embed-src > summary::-webkit-details-marker { display: none; }
.aic-embed-src > summary:hover { color: var(--c-ink); }
.aic-embed-src .aic-code { margin: 0; border: 0; border-radius: 0; }
@keyframes aic-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* Generated images under an answer */
.aic-gallery { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 4px; }
.aic-gen { margin: 0; width: min(100%, 420px); border: 1px solid var(--c-line-soft); border-radius: 12px; overflow: hidden; background: var(--c-surface-1); }
.aic-gen-view { display: block; width: 100%; padding: 0; border: 0; background: var(--c-bg-deep); cursor: zoom-in; }
.aic-gen-view img { display: block; width: 100%; height: auto; max-height: 520px; object-fit: contain; }
.aic-gen figcaption { display: flex; align-items: center; justify-content: space-between; gap: 6px; padding: 4px 6px 4px 10px; font-size: 12px; color: var(--c-ink-dim); }
.aic-gen figcaption > span:first-child { display: inline-flex; align-items: center; gap: 6px; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.aic-gen-acts { display: inline-flex; gap: 2px; flex: none; }
.aic-chip-ref { border-color: color-mix(in srgb, var(--c-brand) 45%, transparent); }
@media (max-width: 768px) {
  .aic-gen { width: 100%; }
  .aic-pill-gen .select-trigger { max-width: 40px; font-size: 0; gap: 0; padding: 0 9px; }
  .aic-pill-gen .select-trigger::after { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .aic *, .aic *::after { transition: none !important; animation: none !important; }
}