/* ============================================================================
   Sutton Studio harness v1 — ai.css: chat and AI elements (ai.js). Linked
   after elements.css. Tokens only, so light and dark both work. Logical
   properties (inline-start / inline-end) so right-to-left flips correctly.
   Assistant text sits plain on the page; the user's turns are cream bubbles.
   ============================================================================ */

/* ---- Shared bits ----------------------------------------------------------------------- */
@keyframes ai-spin { to { transform: rotate(360deg); } }
@keyframes ai-shimmer { from { background-position: 100% 0; } to { background-position: -100% 0; } }
@keyframes ai-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes ai-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.ai-spin { animation: ai-spin .9s linear infinite; }
.ai-shimmer {
  background: linear-gradient(90deg, var(--color-label) 0%, var(--color-label) 40%, var(--color-text) 50%, var(--color-label) 60%, var(--color-label) 100%);
  background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: ai-shimmer 1.6s linear infinite;
}
@media (prefers-reduced-motion: reduce) { .ai-spin, .ai-shimmer, .ai-caret { animation: none; } }

.ai-act {
  width: 28px; height: 28px; flex: none; display: inline-flex; align-items: center; justify-content: center; padding: 0;
  border: 0; border-radius: 6px; background: none; color: var(--color-label); cursor: pointer;
}
.ai-act .icon { width: 15px; height: 15px; }
.ai-act:hover { background: var(--color-surface-cream); color: var(--color-text); }
.ai-act:disabled { opacity: .4; cursor: default; background: none; }
.ai-act.is-on { color: var(--color-text); background: var(--color-surface-alt); }
.ai-act.is-done { color: var(--color-success-text); }
.ai-act:focus-visible, .ai-chip:focus-visible, .ai-disc-head:focus-visible, .ai-send:focus-visible, .ai-tree-row:focus-visible,
.ai-cite:focus-visible, .ai-ctx:focus-visible, .ai-jump:focus-visible, .ai-model-trigger:focus-visible, .ai-queue-check:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* One status glyph everywhere. */
.ai-st { width: 15px; height: 15px; }
.ai-st--running { color: var(--color-accent); }
.ai-st--done { color: var(--color-success-text); }
.ai-st--error { color: var(--color-danger-text); }
.ai-st--waiting { color: var(--color-warn-text); }
.ai-st--pending, .ai-st--skipped { color: var(--color-muted); }

/* Disclosure: a quiet header row that opens a body. */
.ai-disc-head {
  display: flex; align-items: center; gap: var(--space-2); width: 100%; padding: 0; border: 0; background: none; cursor: pointer;
  font: inherit; font-size: var(--fs-base); color: var(--color-label); text-align: start;
}
.ai-disc-head:hover { color: var(--color-text); }
.ai-disc-head > .icon { width: 15px; height: 15px; }
.ai-disc-chev { transition: transform .15s ease; margin-inline-start: auto; color: var(--color-muted); }
.ai-disc.is-open > .ai-disc-head .ai-disc-chev { transform: rotate(180deg); }
.ai-disc-body { display: none; }
.ai-disc.is-open > .ai-disc-body { display: block; }

/* Built-in file chip (used only when elements.js is missing). */
.ai-file { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 4px 0 8px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg); font-size: var(--fs-sm); max-width: 240px; }
.ai-file .icon { width: 14px; height: 14px; color: var(--color-label); }
.ai-file-thumb { width: 20px; height: 20px; border-radius: 4px; object-fit: cover; }
.ai-file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-file-meta { color: var(--color-muted); font-size: var(--fs-xs); }
.ai-file-x { width: 20px; height: 20px; padding: 0; border: 0; background: none; border-radius: 4px; color: var(--color-muted); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.ai-file-x:hover { background: var(--color-surface-cream); color: var(--color-text); }

/* ---- Markdown ---------------------------------------------------------------------------- */
.ai-md { font-size: var(--fs-md); line-height: 1.6; color: var(--color-text); overflow-wrap: anywhere; }
.ai-md > :first-child { margin-top: 0; }
.ai-md > :last-child { margin-bottom: 0; }
.ai-md p { margin: 0 0 var(--space-3); }
.ai-md h1, .ai-md h2, .ai-md h3, .ai-md h4, .ai-md h5, .ai-md h6 { margin: var(--space-5) 0 var(--space-2); line-height: var(--lh-tight); font-weight: var(--fw-semibold); letter-spacing: var(--tracking-tight); }
.ai-md h1 { font-size: var(--fs-xl); }
.ai-md h2 { font-size: var(--fs-lg); }
.ai-md h3 { font-size: var(--fs-md); }
.ai-md h4, .ai-md h5, .ai-md h6 { font-size: var(--fs-base); }
.ai-md ul, .ai-md ol { margin: 0 0 var(--space-3); padding-inline-start: 1.4em; }
.ai-md li { margin: 2px 0; }
.ai-md li > ul, .ai-md li > ol { margin: 2px 0 0; }
.ai-md li::marker { color: var(--color-label); }
.ai-md .ai-md-task { list-style: none; position: relative; }
.ai-md-check { position: absolute; inset-inline-start: -1.4em; top: .3em; width: 15px; height: 15px; border: 1.5px solid var(--color-border); border-radius: 4px; display: inline-flex; align-items: center; justify-content: center; }
.ai-md-check.is-done { background: var(--color-text); border-color: var(--color-text); color: var(--color-bg); }
.ai-md-check .icon { width: 11px; height: 11px; stroke-width: 3; }
.ai-md blockquote { margin: 0 0 var(--space-3); padding: 2px 0 2px var(--space-3); border-inline-start: 3px solid var(--cream-300); color: var(--color-label); }
.ai-md hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-4) 0; }
.ai-md a { color: var(--color-accent); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--color-accent) 35%, transparent); text-underline-offset: 2px; }
.ai-md a:hover { text-decoration-color: currentColor; }
.ai-md code { font-family: var(--font-mono); font-size: .86em; padding: 1px 5px; border-radius: 5px; background: var(--color-surface-cream); border: 1px solid var(--color-border-faint); }
.ai-md .codeblock { margin: 0 0 var(--space-3); }
.ai-md .codeblock code { padding: 0; border: 0; background: none; font-size: inherit; }
.ai-md del { color: var(--color-label); }
.ai-md-table { margin: 0 0 var(--space-3); overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-card); }
.ai-md-table .table { font-size: var(--fs-base); }
.ai-md-table .table th { background: var(--cream-50); text-align: start; font-weight: var(--fw-medium); color: var(--color-label); }
.ai-md-table .table th, .ai-md-table .table td { padding: 7px var(--space-3); border-right: 0; white-space: nowrap; }
.ai-md-table .table tbody tr:last-child td { border-bottom: 0; }
.ai-md-table .table .num { text-align: end; font-variant-numeric: tabular-nums; }
.ai-md-center { text-align: center; }

/* ---- Messages ------------------------------------------------------------------------------ */
.ai-msg { display: flex; flex-direction: column; gap: var(--space-2); animation: ai-in .18s ease both; }
.ai-msg + .ai-msg { margin-top: var(--space-4); }
.ai-msg--user + .ai-msg { margin-top: var(--space-1); }   /* the user turn's hover actions already add room */
.ai-msg--user { align-items: flex-end; }
.ai-msg-bubble {
  max-width: min(80%, 620px); padding: 10px 14px; border-radius: 18px; border-end-end-radius: 6px;
  background: var(--color-surface-cream); border: 1px solid var(--cream-200); color: var(--color-text);
}
.ai-msg-plain { font-size: var(--fs-md); line-height: 1.55; white-space: pre-wrap; overflow-wrap: anywhere; }
.ai-msg-content { min-width: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.ai-msg-content:empty { display: none; }
.ai-msg-head { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-sm); }
.ai-msg-name { font-weight: var(--fw-semibold); }
.ai-msg-time { color: var(--color-muted); }
.ai-msg-files { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.ai-msg--assistant .ai-msg-files { justify-content: flex-start; }
.ai-msg-system { align-self: center; font-size: var(--fs-sm); color: var(--color-label); text-align: center; }
.ai-msg-system .ai-md { font-size: var(--fs-sm); color: var(--color-label); }
.ai-caret { display: inline-block; width: 8px; height: 1em; margin-inline-start: 2px; vertical-align: -2px; border-radius: 2px; background: var(--color-text); animation: ai-blink 1s steps(1) infinite; }
.ai-msg-actions { display: flex; align-items: center; gap: 2px; margin-top: -4px; margin-inline-start: -6px; opacity: 0; transition: opacity .12s ease; min-height: 28px; }
.ai-msg-actions:empty { display: none; }
.ai-msg--user .ai-msg-actions { margin-inline-start: 0; margin-inline-end: -6px; }
.ai-msg:hover .ai-msg-actions, .ai-msg.is-latest .ai-msg-actions, .ai-msg-actions:focus-within { opacity: 1; }
.ai-msg.is-streaming .ai-msg-actions { opacity: 0; pointer-events: none; }
.ai-branch { display: inline-flex; align-items: center; gap: 2px; margin-inline-start: var(--space-2); }
.ai-branch-label { font-size: var(--fs-xs); color: var(--color-label); font-variant-numeric: tabular-nums; min-width: 32px; text-align: center; }

/* Bubbles (two-sided chats: support, vendor messages). */
.ai-bubble-row { display: flex; align-items: flex-end; gap: var(--space-2); }
.ai-bubble-row + .ai-bubble-row { margin-top: var(--space-2); }
.ai-bubble-row--end { flex-direction: row-reverse; }
.ai-bubble-col { display: flex; flex-direction: column; gap: 2px; max-width: min(75%, 560px); }
.ai-bubble-row--end .ai-bubble-col { align-items: flex-end; }
.ai-bubble { padding: 8px 12px; border-radius: 16px; font-size: var(--fs-base); line-height: 1.5; overflow-wrap: anywhere; }
.ai-bubble-row--start .ai-bubble { border-end-start-radius: 6px; }
.ai-bubble-row--end .ai-bubble { border-end-end-radius: 6px; }
.ai-bubble--cream { background: var(--color-surface-cream); border: 1px solid var(--cream-200); }
.ai-bubble--plain { background: var(--color-bg); border: 1px solid var(--color-border); }
.ai-bubble--accent { background: var(--color-accent); color: var(--color-on-accent); }
.ai-bubble-time { font-size: var(--fs-2xs); line-height: 16px; color: var(--color-muted); padding: 0 6px; }
.ai-bubble-row:has(.ai-bubble-time) > .avatar { margin-bottom: 18px; }   /* line up with the bubble, not its time */

/* Markers: labeled dividers and status notes inside a conversation. */
.ai-marker { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-sm); color: var(--color-label); }
.ai-marker .icon { width: 14px; height: 14px; }
.ai-marker--divider { gap: var(--space-3); margin: var(--space-2) 0; }
.ai-marker--divider::before, .ai-marker--divider::after { content: ''; flex: 1; height: 1px; background: var(--color-border); }
.ai-marker-label { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-xs); color: var(--color-label); }
.ai-marker--status { align-self: flex-start; width: fit-content; padding: 4px 10px; border-radius: var(--radius-pill); background: var(--color-surface-cream); }
.ai-marker--row { padding: 6px 0; }
.ai-marker-text { min-width: 0; }
.ai-marker .btn { margin-inline-start: auto; }
.ai-marker--running .icon { color: var(--color-accent); }
.ai-marker--success .icon { color: var(--color-success-text); }
.ai-marker--warn { color: var(--color-warn-text); }
.ai-marker--danger { color: var(--color-danger-text); }
.ai-marker--status.ai-marker--warn { background: var(--pill-amber-bg); }
.ai-marker--status.ai-marker--danger { background: var(--pill-red-bg); }
.ai-marker--status.ai-marker--success { background: var(--pill-green-bg); color: var(--color-success-text); }

/* ---- Message scroller ------------------------------------------------------------------------ */
.ai-scroller-wrap { position: relative; flex: 1; min-height: 0; display: flex; }
.ai-scroller { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: var(--space-6) var(--space-6) var(--space-3); scrollbar-gutter: stable; }
.ai-scroll-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; }
.ai-scroll-list > .ai-marker, .ai-scroll-list > .ai-checkpoint, .ai-scroll-list > .ai-bubble-row { margin-top: var(--space-4); }
.ai-scroll-list > :first-child { margin-top: 0; }
/* The loading pill floats over the top edge (no height), so content never shifts when it goes. */
.ai-scroll-older { position: sticky; top: var(--space-2); height: 0; z-index: 2; display: flex; justify-content: center; overflow: visible; }
.ai-scroll-loading {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 12px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-bg); box-shadow: var(--shadow-sm); font-size: var(--fs-sm); color: var(--color-label); white-space: nowrap;
}
.ai-scroll-loading .icon { width: 14px; height: 14px; }
.ai-jump {
  position: absolute; inset-inline-start: 50%; bottom: var(--space-3); transform: translateX(-50%); z-index: 2;
  display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-bg); box-shadow: var(--shadow-md); font: inherit; font-size: var(--fs-sm); color: var(--color-text); cursor: pointer;
}
[dir="rtl"] .ai-jump { transform: translateX(50%); }
.ai-jump[hidden] { display: none; }
.ai-jump .icon { width: 14px; height: 14px; }
.ai-jump:hover { background: var(--color-hover); }

/* ---- Trace (agent steps) ------------------------------------------------------------------- */
.ai-trace { display: flex; flex-direction: column; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg); overflow: hidden; }
.ai-trace-item + .ai-trace-item { border-top: 1px solid var(--color-border-faint); }
.ai-trace-row { display: flex; align-items: center; gap: var(--space-3); width: 100%; padding: 9px var(--space-3); border: 0; background: none; font: inherit; color: inherit; text-align: start; }
.ai-trace-row.is-clickable { cursor: pointer; }
.ai-trace-row.is-clickable:hover { background: var(--color-hover); }
.ai-trace-icon { flex: none; width: 26px; height: 26px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center; background: var(--color-surface-cream); color: var(--color-label); }
.ai-trace-icon .icon { width: 14px; height: 14px; }
.ai-trace-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-trace-title { font-size: var(--fs-base); font-weight: var(--fw-medium); }
.ai-trace-desc { font-size: var(--fs-sm); color: var(--color-label); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-trace-desc:empty { display: none; }
.ai-trace-meta { flex: none; font-size: var(--fs-xs); color: var(--color-muted); font-variant-numeric: tabular-nums; }
.ai-trace-chev { width: 14px; height: 14px; color: var(--color-muted); transition: transform .15s ease; }
.ai-trace-item.is-open .ai-trace-chev { transform: rotate(90deg); }
[dir="rtl"] .ai-trace-chev { transform: scaleX(-1); }
.ai-trace-body { display: none; padding: 0 var(--space-3) var(--space-3) calc(var(--space-3) * 2 + 26px); font-size: var(--fs-sm); color: var(--color-label); }
.ai-trace-item.is-open .ai-trace-body { display: block; }
.ai-trace-item--running .ai-trace-title { color: var(--color-text); }
.ai-trace-item--pending .ai-trace-title { color: var(--color-label); }

/* ---- Suggestions ------------------------------------------------------------------------------ */
.ai-suggest { display: flex; gap: var(--space-2); overflow-x: auto; scrollbar-width: none; padding: 1px; }
.ai-suggest::-webkit-scrollbar { display: none; }
.ai-suggest[hidden] { display: none; }
.ai-chip {
  flex: none; display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-bg); font: inherit; font-size: var(--fs-sm); color: var(--color-text); cursor: pointer; white-space: nowrap;
}
.ai-chip .icon { width: 14px; height: 14px; color: var(--color-label); }
.ai-chip:hover { background: var(--color-surface-cream); border-color: var(--cream-300); }

/* ---- Model selector ---------------------------------------------------------------------------- */
.ai-model { position: relative; display: inline-flex; }
.ai-model-trigger {
  display: inline-flex; align-items: center; gap: 6px; height: var(--control-height); padding: 0 10px; border-radius: var(--radius-input);
  border: 1px solid var(--color-border); background: var(--color-bg); font: inherit; font-size: var(--fs-base); color: var(--color-text); cursor: pointer; box-shadow: var(--shadow-sm);
}
.ai-model-trigger:hover { background: var(--color-hover); }
.ai-model-trigger .icon { width: 14px; height: 14px; }
.ai-model-ico { color: var(--color-ai); }
.ai-model-caret { color: var(--color-muted); }
.ai-model-trigger--compact { height: 30px; padding: 0 8px; border-color: transparent; box-shadow: none; background: none; font-size: var(--fs-sm); color: var(--color-label); }
.ai-model-trigger--compact:hover { background: var(--color-surface-cream); color: var(--color-text); }
.ai-model-menu { width: 300px; max-height: 360px; display: flex; flex-direction: column; overflow: hidden; }
.ai-model-list { overflow-y: auto; min-height: 0; }
.ai-model-item { white-space: normal; align-items: flex-start; }
.ai-model-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.ai-model-row { display: flex; align-items: center; gap: 6px; }
.ai-model-item-name { font-weight: var(--fw-medium); }
.ai-model-desc { font-size: var(--fs-xs); color: var(--color-label); }
.ai-model-item .ui-menu-check { flex: none; width: 16px; margin-top: 2px; }
.ai-model-item .ui-menu-check .icon { width: 14px; height: 14px; }

/* ---- Prompt input ------------------------------------------------------------------------------ */
.ai-prompt {
  display: flex; flex-direction: column; gap: 4px; padding: 10px 10px 8px; border: 1px solid var(--color-border); border-radius: var(--radius-composer);
  background: var(--color-bg); box-shadow: var(--shadow-sm); cursor: text; transition: border-color .12s ease, box-shadow .12s ease;
}
.ai-prompt:focus-within { border-color: var(--cream-400); box-shadow: var(--shadow-md); }
.ai-prompt.is-over { border-color: var(--color-accent); border-style: dashed; background: var(--color-accent-soft); }
.ai-prompt-files { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 2px 4px; }
.ai-prompt-files[hidden] { display: none; }
.ai-prompt-text {
  width: 100%; min-height: 24px; resize: none; border: 0; outline: none; background: none; padding: 2px 4px; margin: 0;
  font: inherit; font-size: var(--fs-md); line-height: 1.5; color: var(--color-text); overflow-y: hidden;
}
.ai-prompt-text::placeholder { color: var(--color-muted); }
.ai-prompt-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); cursor: default; }
.ai-prompt-left, .ai-prompt-right { display: flex; align-items: center; gap: 4px; min-width: 0; }
.ai-prompt-left { flex: 1; flex-wrap: wrap; }
.ai-prompt-plus { width: 30px; height: 30px; border-radius: var(--radius-pill); border: 1px solid var(--color-border); }
.ai-prompt-tools { display: contents; }
.ai-tool-chip {
  display: inline-flex; align-items: center; gap: 4px; height: 28px; padding: 0 6px 0 8px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-accent-soft); background: var(--color-accent-soft); color: var(--color-accent); font: inherit; font-size: var(--fs-sm); cursor: pointer;
}
.ai-tool-chip .icon { width: 13px; height: 13px; }
.ai-tool-chip-x { opacity: .6; }
.ai-tool-chip:hover .ai-tool-chip-x { opacity: 1; }
/* The send button is the composer's one call to action: the gradient circle. */
.ai-send {
  width: 32px; height: 32px; flex: none; border-radius: 50%; border: 0; padding: 0; display: inline-flex; align-items: center; justify-content: center;
  background: var(--grad-primary); color: var(--btn-primary-text); box-shadow: var(--btn-primary-shadow); cursor: pointer; transition: opacity .12s ease;
}
.ai-send .icon { width: 16px; height: 16px; stroke-width: 2.25; color: var(--btn-primary-text); }
.ai-send:hover:not(:disabled) { background: var(--grad-primary-hover); }
.ai-send:disabled { background: var(--color-surface-alt); color: var(--color-muted); box-shadow: none; cursor: default; }
.ai-send:disabled .icon { color: var(--color-muted); }
.ai-send--streaming, .ai-send--submitted { background: var(--color-text); box-shadow: none; }
.ai-send--streaming:hover:not(:disabled), .ai-send--submitted:hover:not(:disabled) { background: var(--color-text); opacity: .85; }
.ai-send--streaming .icon, .ai-send--submitted .icon { color: var(--color-bg); }
.ai-send-stop { fill: currentColor; width: 12px !important; height: 12px !important; }

/* ---- Chat ----------------------------------------------------------------------------------- */
.ai-chat { display: flex; flex-direction: column; height: 100%; min-height: 0; background: var(--color-bg); }
.ai-chat-foot { flex: none; display: flex; flex-direction: column; gap: var(--space-2); width: 100%; max-width: calc(760px + var(--space-6) * 2); margin: 0 auto; padding: 0 var(--space-6) var(--space-4); }
.ai-chat-empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-2); padding: var(--space-10) var(--space-4) var(--space-6); margin: auto 0; }
.ai-chat-empty-icon { width: 44px; height: 44px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; background: var(--grad-ai-tint); color: var(--color-ai); margin-bottom: var(--space-2); }
.ai-chat-empty-icon .icon { width: 22px; height: 22px; }
.ai-chat-empty-title { font-size: var(--fs-xl); font-weight: var(--fw-semibold); letter-spacing: var(--tracking-tight); }
.ai-chat-empty-desc { font-size: var(--fs-base); color: var(--color-label); max-width: 420px; }
.ai-scroll-list:has(> .ai-chat-empty) { min-height: 100%; justify-content: center; }

/* ---- Reasoning + chain of thought ------------------------------------------------------------ */
.ai-reason, .ai-cot { font-size: var(--fs-base); }
.ai-reason > .ai-disc-head, .ai-cot > .ai-disc-head { width: fit-content; }
.ai-reason > .ai-disc-head .ai-disc-chev, .ai-cot > .ai-disc-head .ai-disc-chev { margin-inline-start: 0; }
.ai-reason-ico { color: var(--color-label); }
.ai-reason-text { margin-top: var(--space-2); padding-inline-start: var(--space-3); border-inline-start: 2px solid var(--color-border); }
.ai-reason-text .ai-md { font-size: var(--fs-base); color: var(--color-label); }
.ai-cot-steps { list-style: none; margin: var(--space-3) 0 0; padding: 0; }
.ai-cot-step { position: relative; display: flex; gap: var(--space-3); padding-bottom: var(--space-3); }
.ai-cot-step:not(:last-child)::before { content: ''; position: absolute; inset-inline-start: 9px; top: 22px; bottom: 2px; width: 1px; background: var(--color-border); }
.ai-cot-dot { flex: none; width: 19px; height: 19px; display: inline-flex; align-items: center; justify-content: center; color: var(--color-label); }
.ai-cot-dot .icon { width: 14px; height: 14px; }
.ai-cot-step--active .ai-cot-dot { color: var(--color-accent); }
.ai-cot-step--pending { color: var(--color-muted); }
.ai-cot-step--pending .ai-cot-dot { color: var(--color-muted); }
.ai-cot-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; padding-top: 1px; }
.ai-cot-label { font-weight: var(--fw-medium); }
.ai-cot-step--pending .ai-cot-label { font-weight: var(--fw-regular); }
.ai-cot-desc { font-size: var(--fs-sm); color: var(--color-label); }
.ai-cot-content { font-size: var(--fs-sm); }
.ai-cot-sources { display: flex; flex-wrap: wrap; gap: 4px; }
.ai-src-chip { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: var(--radius-pill); background: var(--color-surface-cream); border: 1px solid var(--cream-200); font-size: var(--fs-xs); color: var(--color-label); text-decoration: none; }
a.ai-src-chip:hover { color: var(--color-text); border-color: var(--cream-300); }
.ai-cot-figure { margin: 4px 0 0; }
.ai-cot-figure img { max-width: 100%; border-radius: 8px; border: 1px solid var(--color-border); display: block; }
.ai-cot-figure figcaption { font-size: var(--fs-xs); color: var(--color-muted); margin-top: 4px; }

/* ---- Cards: plan, task, subagent, tool, queue, sources ---------------------------------------- */
.ai-plan, .ai-task, .ai-sub, .ai-tool, .ai-queue-sec, .ai-confirm, .ai-stack, .ai-tests {
  border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg); overflow: hidden;
}
.ai-plan > .ai-disc-head, .ai-task > .ai-disc-head, .ai-sub > .ai-disc-head, .ai-tool > .ai-disc-head, .ai-queue-sec > .ai-disc-head {
  padding: 10px var(--space-3); color: var(--color-text);
}
.ai-plan > .ai-disc-head:hover, .ai-task > .ai-disc-head:hover, .ai-sub > .ai-disc-head:hover, .ai-tool > .ai-disc-head:hover, .ai-queue-sec > .ai-disc-head:hover { background: var(--color-hover); }
.ai-plan.is-open > .ai-disc-head, .ai-task.is-open > .ai-disc-head, .ai-sub.is-open > .ai-disc-head, .ai-tool.is-open > .ai-disc-head { border-bottom: 1px solid var(--color-border-faint); }

.ai-plan-ico { color: var(--color-label); }
.ai-plan-titles { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-plan-title { font-weight: var(--fw-semibold); }
.ai-plan-desc { font-size: var(--fs-sm); color: var(--color-label); }
.ai-plan-count { font-size: var(--fs-xs); color: var(--color-label); font-variant-numeric: tabular-nums; }
.ai-plan-steps { list-style: none; margin: 0; padding: var(--space-2) var(--space-3); }
.ai-plan-step { display: flex; align-items: flex-start; gap: var(--space-3); padding: 6px 0; }
.ai-plan-mark {
  flex: none; width: 20px; height: 20px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border); font-size: var(--fs-2xs); font-weight: var(--fw-semibold); color: var(--color-label); font-variant-numeric: tabular-nums;
}
.ai-plan-mark .icon { width: 12px; height: 12px; stroke-width: 2.5; }
.ai-plan-step--complete .ai-plan-mark, .ai-plan-step--done .ai-plan-mark { background: var(--color-text); border-color: var(--color-text); color: var(--color-bg); }
.ai-plan-step--active .ai-plan-mark { border-color: var(--color-accent); color: var(--color-accent); }
.ai-plan-text { display: flex; flex-direction: column; min-width: 0; padding-top: 1px; }
.ai-plan-label { font-size: var(--fs-base); }
.ai-plan-step--complete .ai-plan-label, .ai-plan-step--done .ai-plan-label { color: var(--color-label); text-decoration: line-through; text-decoration-color: var(--color-muted); }
.ai-plan-step--active .ai-plan-label { font-weight: var(--fw-medium); }
.ai-plan-step-desc { font-size: var(--fs-sm); color: var(--color-label); }
.ai-plan-foot { display: flex; justify-content: flex-end; gap: var(--space-2); padding: var(--space-2) var(--space-3) var(--space-3); border-top: 1px solid var(--color-border-faint); }

.ai-task-st { display: inline-flex; }
.ai-task-title { flex: 1; min-width: 0; font-weight: var(--fw-medium); }
.ai-task-items { list-style: none; margin: 0; padding: var(--space-2) var(--space-3) var(--space-3); display: flex; flex-direction: column; gap: 6px; }
.ai-task-item { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: var(--fs-base); color: var(--color-label); }
.ai-task-item::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--color-muted); margin-inline-end: 4px; }
.ai-task-item--done { color: var(--color-text); }
.ai-file-pill { display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 7px; border-radius: 6px; background: var(--color-surface-cream); border: 1px solid var(--cream-200); font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--color-text); }
.ai-file-pill .icon { width: 12px; height: 12px; color: var(--color-label); }

.ai-sub-ico { flex: none; width: 26px; height: 26px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center; background: var(--grad-ai-tint); color: var(--color-ai); }
.ai-sub-ico .icon { width: 14px; height: 14px; }
.ai-sub-titles { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-sub-name { font-weight: var(--fw-medium); }
.ai-sub-desc { font-size: var(--fs-sm); color: var(--color-label); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-sub-meta { font-size: var(--fs-xs); color: var(--color-muted); white-space: nowrap; }
.ai-sub-status { display: inline-flex; }
.ai-sub .ai-trace { border: 0; border-radius: 0; }

.ai-tool-ico { color: var(--color-label); }
.ai-tool-name { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: var(--space-2); overflow: hidden; }
.ai-tool-title { font-weight: var(--fw-medium); white-space: nowrap; }
.ai-tool-name code { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--color-label); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-tool-badge .bdg { margin: 0; }
.ai-tool > .ai-disc-body { padding: var(--space-3); }
.ai-tool-sec + .ai-tool-sec, .ai-tool-sec + .ai-tool-out:not(:empty) { margin-top: var(--space-3); }
.ai-tool-h { font-size: var(--fs-2xs); text-transform: uppercase; letter-spacing: .04em; color: var(--color-muted); margin-bottom: 6px; }
.ai-tool-text .ai-md { font-size: var(--fs-base); }
.ai-tool-error { display: flex; gap: var(--space-2); align-items: flex-start; padding: var(--space-2) var(--space-3); border-radius: 8px; background: var(--pill-red-bg); color: var(--color-danger-text); font-size: var(--fs-base); }
.ai-tool-error .icon { width: 15px; height: 15px; margin-top: 2px; }
.ai-tool[data-status="awaiting-approval"] { border-color: var(--color-warn-border); }

.ai-queue { display: flex; flex-direction: column; gap: var(--space-2); }
.ai-queue-label { flex: 1; font-weight: var(--fw-medium); }
.ai-queue-count { font-size: var(--fs-xs); color: var(--color-label); min-width: 20px; height: 20px; padding: 0 6px; border-radius: var(--radius-pill); background: var(--color-surface-cream); display: inline-flex; align-items: center; justify-content: center; }
.ai-queue-sec > .ai-disc-body { padding: 0 var(--space-2) var(--space-2); }
.ai-queue-item { display: flex; align-items: flex-start; gap: var(--space-2); padding: 6px var(--space-2); border-radius: 8px; }
.ai-queue-item + .ai-queue-item { margin-top: 2px; }
.ai-queue-item:hover { background: var(--color-hover); }
.ai-queue-check {
  flex: none; width: 16px; height: 16px; margin-top: 2px; padding: 0; border-radius: 50%; border: 1.5px solid var(--color-border);
  background: var(--color-bg); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; color: var(--color-bg);
}
.ai-queue-check:hover { border-color: var(--color-label); }
.ai-queue-item.is-done .ai-queue-check { background: var(--color-text); border-color: var(--color-text); }
.ai-queue-check .icon { width: 10px; height: 10px; stroke-width: 3; }
.ai-queue-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.ai-queue-text { font-size: var(--fs-base); }
.ai-queue-item.is-done .ai-queue-text { color: var(--color-muted); text-decoration: line-through; }
.ai-queue-files { display: flex; flex-wrap: wrap; gap: 4px; }
.ai-queue-x { width: 24px; height: 24px; opacity: 0; }
.ai-queue-item:hover .ai-queue-x, .ai-queue-x:focus-visible { opacity: 1; }
.ai-queue-empty { padding: 6px var(--space-2); font-size: var(--fs-sm); color: var(--color-muted); }

/* ---- Confirmation + checkpoint ------------------------------------------------------------- */
.ai-confirm { padding: var(--space-3) var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); border-color: var(--color-warn-border); background: var(--cream-25); }
.ai-confirm-head { display: flex; gap: var(--space-3); align-items: flex-start; }
.ai-confirm-ico { flex: none; width: 28px; height: 28px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; background: var(--pill-amber-bg); color: var(--color-warn-text); }
.ai-confirm-ico .icon { width: 15px; height: 15px; }
.ai-confirm-titles { min-width: 0; display: flex; flex-direction: column; gap: 2px; padding-top: 3px; }
.ai-confirm-title { font-weight: var(--fw-semibold); }
.ai-confirm-desc { font-size: var(--fs-base); color: var(--color-label); }
.ai-confirm-details { padding: var(--space-2) var(--space-3); border-radius: 8px; background: var(--color-bg); border: 1px solid var(--color-border-faint); }
.ai-confirm-details .field-rows { gap: 2px; }
.ai-confirm-details .field { min-height: 26px; font-size: var(--fs-base); }
.ai-confirm-details .field-label { width: 110px; }
.ai-confirm-foot { display: flex; justify-content: flex-end; gap: var(--space-2); }
.ai-confirm-result { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm); font-weight: var(--fw-medium); }
.ai-confirm-result .icon { width: 15px; height: 15px; }
.ai-confirm.is-approved, .ai-confirm.is-rejected { border-color: var(--color-border); background: var(--color-bg); }
.ai-confirm.is-approved .ai-confirm-result { color: var(--color-success-text); }
.ai-confirm.is-rejected .ai-confirm-result { color: var(--color-label); }
.ai-confirm.is-approved .ai-confirm-ico, .ai-confirm.is-rejected .ai-confirm-ico { background: var(--color-surface-cream); color: var(--color-label); }

.ai-checkpoint { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--color-label); }
.ai-checkpoint-line { flex: 1; height: 1px; background: repeating-linear-gradient(90deg, var(--color-border) 0 4px, transparent 4px 8px); }
.ai-checkpoint-label { display: inline-flex; align-items: center; gap: 6px; }
.ai-checkpoint-label .icon { width: 13px; height: 13px; }
.ai-checkpoint-time { color: var(--color-muted); }
.ai-checkpoint-btn {
  display: inline-flex; align-items: center; gap: 4px; height: 24px; padding: 0 8px; border-radius: var(--radius-pill); border: 1px solid var(--color-border);
  background: var(--color-bg); font: inherit; font-size: var(--fs-xs); color: var(--color-text); cursor: pointer;
}
.ai-checkpoint-btn .icon { width: 12px; height: 12px; }
.ai-checkpoint-btn:hover { background: var(--color-surface-cream); }

/* ---- Context usage ---------------------------------------------------------------------------- */
.ai-ctx {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 8px; border-radius: var(--radius-pill); border: 0;
  background: none; font: inherit; font-size: var(--fs-xs); color: var(--color-label); cursor: pointer; font-variant-numeric: tabular-nums;
}
.ai-ctx:hover { background: var(--color-surface-cream); color: var(--color-text); }
.ai-ctx-ring { width: 16px; height: 16px; }
.ai-ctx-track { fill: none; stroke: var(--color-border); stroke-width: 2.5; }
.ai-ctx-fill { fill: none; stroke: var(--color-text); stroke-width: 2.5; stroke-linecap: round; transition: stroke-dashoffset .3s ease; }
.ai-ctx.is-high .ai-ctx-fill { stroke: var(--color-warn-text); }
.ai-ctx-card { display: flex; flex-direction: column; gap: var(--space-2); font-size: var(--fs-sm); }
.ai-ctx-head { display: flex; justify-content: space-between; align-items: baseline; font-weight: var(--fw-medium); }
.ai-ctx-big { font-size: var(--fs-lg); font-weight: var(--fw-semibold); font-variant-numeric: tabular-nums; }
.ai-ctx-bar { height: 6px; border-radius: var(--radius-pill); background: var(--color-surface-alt); overflow: hidden; }
.ai-ctx-bar > span { display: block; height: 100%; border-radius: inherit; background: var(--color-text); }
.ai-ctx-sub { color: var(--color-label); font-size: var(--fs-xs); }
.ai-ctx-rows { display: flex; flex-direction: column; gap: 4px; padding-top: var(--space-2); border-top: 1px solid var(--color-border-faint); }
.ai-ctx-row { display: flex; justify-content: space-between; color: var(--color-label); font-variant-numeric: tabular-nums; }
.ai-ctx-row > span:last-child { color: var(--color-text); }
.ai-ctx-cost { padding-top: var(--space-2); border-top: 1px solid var(--color-border-faint); }

/* ---- Citations + sources ---------------------------------------------------------------------- */
.ai-cite {
  display: inline-flex; align-items: center; height: 18px; padding: 0 6px; margin-inline: 3px 1px; border-radius: var(--radius-pill); border: 0; vertical-align: 1px;
  background: var(--color-surface-alt); font: inherit; font-size: var(--fs-2xs); font-weight: var(--fw-medium); color: var(--color-label); cursor: pointer; line-height: 1;
}
.ai-cite:hover { background: var(--cream-300); color: var(--color-text); }
.ai-cite-card { display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-sm); }
.ai-cite-pager { display: flex; align-items: center; justify-content: space-between; margin: -4px -4px 2px; font-size: var(--fs-xs); color: var(--color-label); }
.ai-cite-pager .ai-act { width: 24px; height: 24px; }
.ai-cite-site { display: flex; align-items: center; gap: 6px; color: var(--color-label); font-size: var(--fs-xs); }
.ai-src-initial { flex: none; width: 18px; height: 18px; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; background: var(--color-surface-alt); font-size: var(--fs-2xs); font-weight: var(--fw-semibold); color: var(--color-label); }
.ai-cite-title { font-weight: var(--fw-medium); color: var(--color-text); text-decoration: none; }
a.ai-cite-title:hover { text-decoration: underline; }
.ai-cite-desc { color: var(--color-label); line-height: 1.45; }

.ai-sources > .ai-disc-head { width: fit-content; font-size: var(--fs-sm); }
.ai-sources > .ai-disc-head .ai-disc-chev { margin-inline-start: 0; }
.ai-sources-ico { color: var(--color-label); }
.ai-sources > .ai-disc-body { margin-top: var(--space-2); }
.ai-sources.is-open > .ai-disc-body { display: flex; flex-direction: column; gap: 2px; }
.ai-source { display: flex; align-items: center; gap: var(--space-2); padding: 6px 8px; border-radius: 8px; text-decoration: none; color: var(--color-text); max-width: 520px; }
a.ai-source:hover { background: var(--color-surface-cream); }
.ai-source-text { min-width: 0; display: flex; flex-direction: column; }
.ai-source-title { font-size: var(--fs-sm); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-source-host { font-size: var(--fs-xs); color: var(--color-muted); }

/* ---- File tree --------------------------------------------------------------------------------- */
.ai-tree { display: flex; flex-direction: column; gap: 1px; padding: 4px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg); font-size: var(--fs-base); }
.ai-tree-row {
  display: flex; align-items: center; gap: 6px; height: 28px; padding-inline-start: calc(6px + var(--depth, 0) * 16px); padding-inline-end: 8px;
  border-radius: 6px; cursor: pointer; color: var(--color-text); user-select: none; outline: none;
}
.ai-tree-row:hover { background: var(--color-hover); }
.ai-tree-row.is-selected { background: var(--color-surface-alt); }
.ai-tree-chev { width: 14px; height: 14px; flex: none; color: var(--color-muted); transition: transform .12s ease; }
.ai-tree-row[aria-expanded="true"] .ai-tree-chev { transform: rotate(90deg); }
[dir="rtl"] .ai-tree-row[aria-expanded="false"] .ai-tree-chev { transform: scaleX(-1); }
.ai-tree-ico { width: 15px; height: 15px; color: var(--color-label); }
.ai-tree-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-tree-st { font-family: var(--font-mono); font-size: var(--fs-2xs); font-weight: var(--fw-semibold); }
.ai-tree-row--added .ai-tree-name, .ai-tree-row--added .ai-tree-st { color: var(--color-success-text); }
.ai-tree-row--modified .ai-tree-name, .ai-tree-row--modified .ai-tree-st { color: var(--color-warn-text); }
.ai-tree-row--deleted .ai-tree-name { color: var(--color-danger-text); text-decoration: line-through; }
.ai-tree-row--deleted .ai-tree-st { color: var(--color-danger-text); }

/* ---- Terminal (always dark) ---------------------------------------------------------------------- */
.ai-term { border-radius: var(--radius-card); border: 1px solid var(--color-border); background: var(--color-canvas); overflow: hidden; color: var(--color-text); }
.ai-term-head { display: flex; align-items: center; gap: var(--space-2); height: 36px; padding: 0 4px 0 var(--space-3); border-bottom: 1px solid var(--color-border-faint); font-size: var(--fs-sm); color: var(--color-label); }
.ai-term-head > .icon { width: 14px; height: 14px; }
.ai-term-title { flex: 1; min-width: 0; }
.ai-term-tools { display: flex; gap: 2px; }
.ai-term-body {
  margin: 0; padding: var(--space-3); max-height: 320px; overflow: auto; outline: none;
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--color-text);
}
.ai-term-caret { display: inline-block; width: 7px; height: 1.1em; vertical-align: -3px; background: var(--color-label); animation: ai-blink 1s steps(1) infinite; }
.ansi-bold { font-weight: var(--fw-bold); }
.ansi-dim { opacity: .6; }
.ansi-30, .ansi-90 { color: var(--color-muted); }
.ansi-31, .ansi-91 { color: var(--color-danger-text); }
.ansi-32, .ansi-92 { color: var(--color-success-text); }
.ansi-33, .ansi-93 { color: var(--color-warn-text); }
.ansi-34, .ansi-94 { color: var(--color-accent); }
.ansi-35, .ansi-95 { color: color-mix(in srgb, var(--opt-magenta) 55%, var(--color-text)); }
.ansi-36, .ansi-96 { color: color-mix(in srgb, var(--opt-cyan) 55%, var(--color-text)); }
.ansi-37, .ansi-97 { color: var(--color-text); }

/* ---- Stack trace + test results ------------------------------------------------------------------ */
.ai-stack-head { display: flex; align-items: flex-start; gap: var(--space-2); padding: var(--space-3); background: var(--pill-red-bg); }
.ai-stack-ico { width: 16px; height: 16px; margin-top: 2px; color: var(--color-danger-text); }
.ai-stack-titles { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.ai-stack-name { font-family: var(--font-mono); font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--color-danger-text); }
.ai-stack-msg { font-size: var(--fs-base); color: var(--color-text); overflow-wrap: anywhere; }
.ai-stack-head .ai-act { margin: -4px -4px 0 0; }
.ai-stack-frames > .ai-disc-head { padding: 8px var(--space-3); font-size: var(--fs-xs); border-top: 1px solid var(--color-border-faint); }
.ai-stack-frames > .ai-disc-head .ai-disc-chev { margin-inline-start: 0; order: -1; }
.ai-stack-frames > .ai-disc-body { padding: 0 var(--space-2) var(--space-2); }
.ai-stack-frame {
  display: flex; gap: var(--space-3); align-items: baseline; width: 100%; padding: 4px var(--space-2); border: 0; border-radius: 6px; background: none;
  font-family: var(--font-mono); font-size: 12px; color: var(--color-text); text-align: start;
}
button.ai-stack-frame { cursor: pointer; }
button.ai-stack-frame:hover { background: var(--color-hover); }
.ai-stack-frame.is-internal { color: var(--color-muted); }
.ai-stack-fn { flex: none; max-width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-stack-loc { min-width: 0; color: var(--color-label); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; direction: rtl; text-align: start; }
.ai-stack-frame.is-internal .ai-stack-loc { color: var(--color-muted); }
.ai-test-error .ai-stack { border-radius: 8px; }

.ai-tests-head { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-2); padding: var(--space-3) var(--space-3) var(--space-2); }
.ai-tests-ico { width: 16px; height: 16px; color: var(--color-label); }
.ai-tests-title { font-weight: var(--fw-semibold); margin-inline-end: auto; }
.ai-tests-counts { display: flex; gap: var(--space-3); font-size: var(--fs-sm); color: var(--color-label); font-variant-numeric: tabular-nums; }
.ai-tests-n--passed { color: var(--color-success-text); }
.ai-tests-n--failed { color: var(--color-danger-text); }
.ai-tests-bar { display: flex; height: 6px; margin: 0 var(--space-3) var(--space-3); border-radius: var(--radius-pill); overflow: hidden; background: var(--color-surface-alt); gap: 2px; }
.ai-tests-seg:empty[style*="width:0%"] { display: none; }
.ai-tests-seg--passed { background: var(--color-success-text); }
.ai-tests-seg--failed { background: var(--color-danger-text); }
.ai-tests-seg--skipped { background: var(--color-muted); }
.ai-tests-suite { border-top: 1px solid var(--color-border-faint); }
.ai-tests-suite > .ai-disc-head { padding: 9px var(--space-3); color: var(--color-text); }
.ai-tests-suite > .ai-disc-head:hover { background: var(--color-hover); }
.ai-tests-suite-name { flex: 1; min-width: 0; font-weight: var(--fw-medium); }
.ai-tests-suite-count { font-size: var(--fs-xs); color: var(--color-label); }
.ai-tests-suite > .ai-disc-body { padding: 0 var(--space-3) var(--space-2) calc(var(--space-3) + 23px); }
.ai-test-row { display: flex; align-items: center; gap: var(--space-2); padding: 4px 0; font-size: var(--fs-base); }
.ai-test-name { flex: 1; min-width: 0; }
.ai-test--skipped .ai-test-name { color: var(--color-muted); }
.ai-test-ms { font-size: var(--fs-xs); color: var(--color-muted); font-variant-numeric: tabular-nums; }
.ai-test-error { padding: 2px 0 var(--space-2) 23px; }
.ai-test-error pre { margin: 0; padding: var(--space-2) var(--space-3); border-radius: 8px; background: var(--pill-red-bg); color: var(--color-danger-text); font-family: var(--font-mono); font-size: 12px; white-space: pre-wrap; }

/* Phones: tighter chat gutters. */
@media (max-width: 640px) {
  .ai-scroller { padding: var(--space-4) var(--space-4) var(--space-2); }
  .ai-chat-foot { padding: 0 var(--space-3) var(--space-3); }
  .ai-msg-bubble { max-width: 88%; }
}