/* AI Hub — chat page. Dark "ink" identity. No inline styles anywhere (strict CSP). */

:root {
  /* Identity tokens (SPEC) */
  --ink: #0B1026;
  --panel: #141A3A;
  --panel-2: #1C2450;
  --line: #2A3470;
  --text: #EEF0FF;
  --muted: #9AA3D0;
  --violet: #7C5CFF;
  --violet-2: #A48BFF;
  --coral: #FF7A59;
  --amber: #FFB547;
  --danger: #FF5C7A;

  /* Derived from the tokens above */
  --violet-ink: #634BCF;                 /* violet deepened with ink: white text ≥ 6:1 */
  --violet-wash: rgb(124 92 255 / 0.14);
  --violet-edge: rgb(164 139 255 / 0.45);
  --coral-wash: rgb(255 122 89 / 0.14);
  --danger-wash: rgb(255 92 122 / 0.12);
  --code-bg: #080C1E;

  --font: "Segoe UI", "Noto Sans Arabic", "Tahoma", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --col: 780px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

[hidden] { display: none !important; }

html { height: 100%; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  height: 100%;
  min-height: 100dvh;
  background-color: var(--ink);
  background-image:
    radial-gradient(60rem 28rem at 85% -12rem, rgb(124 92 255 / 0.20), transparent 70%),
    radial-gradient(40rem 22rem at 5% 115%, rgb(255 122 89 / 0.08), transparent 70%);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  text-align: start;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

h1, h2, h3, h4, p, ul, ol { margin: 0; }
ul, ol { padding: 0; }
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--violet-2); }

::selection { background: rgb(124 92 255 / 0.45); color: #fff; }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--violet-2);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.sprite { position: absolute; inline-size: 0; block-size: 0; overflow: hidden; }
.g-stop-a { stop-color: var(--violet); }
.g-stop-b { stop-color: var(--coral); }

.noscript {
  margin: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--danger);
  border-radius: var(--r-md);
  background: var(--danger-wash);
}

/* ───────────── Marks & icons ───────────── */
.mark { inline-size: 28px; block-size: 28px; flex: none; display: block; }
.mark-lg { inline-size: 44px; block-size: 44px; }
.mark-xl { inline-size: 56px; block-size: 56px; margin-inline: auto; }
.icon { inline-size: 18px; block-size: 18px; flex: none; display: block; }

/* ───────────── Buttons ───────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-block-size: 40px;
  padding-block: 0.4rem;
  padding-inline: 1rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  background: transparent;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease), transform 0.15s var(--ease);
}
.btn:disabled { cursor: not-allowed; opacity: 0.45; }
.btn-sm { min-block-size: 34px; padding-inline: 0.75rem; font-size: 0.85rem; border-radius: 10px; }
.btn-block { inline-size: 100%; }

.btn-primary { background: var(--coral); color: var(--ink); }
.btn-primary:not(:disabled):hover { background: #FF8D70; }
.btn-primary:not(:disabled):active { transform: translateY(1px); }

.btn-ghost { border-color: var(--line); color: var(--text); background: rgb(20 26 58 / 0.6); }
.btn-ghost:hover { border-color: var(--violet-edge); background: var(--panel-2); }

.btn-stop { background: var(--panel-2); border-color: var(--violet-edge); color: var(--text); }
.btn-stop:hover { border-color: var(--coral); color: var(--coral); }

.btn-round { inline-size: 42px; min-block-size: 42px; padding: 0; border-radius: 50%; flex: none; }

/* ───────────── Key gate ───────────── */
.gate {
  position: relative;
  block-size: 100%;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  overflow-y: auto;
}
.gate-lang { position: absolute; inset-block-start: 1rem; inset-inline-end: 1rem; }

.gate-card {
  position: relative;
  inline-size: min(100%, 26.5rem);
  padding: 2rem 1.75rem 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--panel-2), var(--panel) 42%);
  box-shadow: 0 30px 80px rgb(4 6 20 / 0.55);
}
.gate-card::before {
  content: "";
  position: absolute;
  inset-block-start: -1px;
  inset-inline: 1.75rem;
  block-size: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--violet), var(--coral));
}
.gate-brand { display: flex; align-items: center; gap: 0.9rem; margin-block-end: 1.75rem; }
.gate-title { font-size: 1.5rem; line-height: 1.3; font-weight: 700; letter-spacing: 0; }
.gate-tag { color: var(--muted); font-size: 0.92rem; }

.gate-form { display: grid; gap: 0.55rem; }
.field-label { font-size: 0.88rem; font-weight: 600; color: var(--muted); }
.field {
  inline-size: 100%;
  min-block-size: 46px;
  padding-block: 0.5rem;
  padding-inline: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.95rem;
  text-align: left;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.field::placeholder { color: rgb(154 163 208 / 0.55); }
.field:focus-visible {
  outline: none;
  border-color: var(--violet-2);
  box-shadow: 0 0 0 3px rgb(124 92 255 / 0.35);
  border-radius: var(--r-md);
}
.field-help { color: var(--muted); font-size: 0.8rem; }
.form-error {
  padding-block: 0.55rem;
  padding-inline: 0.8rem;
  border: 1px solid rgb(255 92 122 / 0.55);
  border-radius: var(--r-sm);
  background: var(--danger-wash);
  color: #FFC2CD;
  font-size: 0.88rem;
}
.gate-form .btn-primary { margin-block-start: 0.6rem; min-block-size: 46px; }

/* ───────────── App frame ───────────── */
.app {
  block-size: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.topbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-block-size: 54px;
  padding-block: 0.5rem;
  padding-inline: max(1rem, env(safe-area-inset-left)) max(1rem, env(safe-area-inset-right));
  background: rgb(11 16 38 / 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.topbar::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  block-size: 1px;
  background: linear-gradient(90deg, transparent, var(--violet) 22%, var(--coral) 78%, transparent);
  opacity: 0.55;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  text-decoration: none;
  min-inline-size: 0;
}
.brand-name { font-size: 1.06rem; font-weight: 700; white-space: nowrap; }

.topbar-actions { display: flex; align-items: center; gap: 0.5rem; min-inline-size: 0; }

/* Status pill */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 30px;
  padding-inline: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
  max-inline-size: 17rem;
  overflow: hidden;
}
.pill-text { overflow: hidden; text-overflow: ellipsis; }
.pill-dot {
  inline-size: 8px;
  block-size: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--muted);
}
.pill[data-state="ready"] { color: var(--text); border-color: var(--violet-edge); }
.pill[data-state="ready"] .pill-dot { background: var(--violet-2); box-shadow: 0 0 0 3px rgb(164 139 255 / 0.22); }
.pill[data-state="pulling"] { color: var(--amber); border-color: rgb(255 181 71 / 0.5); }
.pill[data-state="pulling"] .pill-dot { background: var(--amber); animation: pulse 1.4s ease-in-out infinite; }
.pill[data-state="notready"] { color: var(--amber); border-color: rgb(255 181 71 / 0.5); }
.pill[data-state="notready"] .pill-dot { background: transparent; border: 2px solid var(--amber); }
.pill[data-state="unreachable"] { color: #FFC2CD; border-color: rgb(255 92 122 / 0.55); }
.pill[data-state="unreachable"] .pill-dot { background: var(--danger); }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.75); }
}

/* ───────────── Shell: rail + stage ───────────── */
.shell {
  display: grid;
  grid-template-columns: 17.5rem minmax(0, 1fr);
  min-block-size: 0;
}

.rail {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-block-size: 0;
  padding: 1.1rem 0.85rem;
  border-inline-end: 1px solid var(--line);
  background: rgb(20 26 58 / 0.45);
  overflow-y: auto;
}
.rail-title {
  padding-inline: 0.6rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}
.project-list { list-style: none; display: grid; gap: 0.3rem; }
.project {
  position: relative;
  display: grid;
  gap: 0.1rem;
  inline-size: 100%;
  padding-block: 0.6rem;
  padding-inline: 0.9rem 0.7rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  background: transparent;
  text-align: start;
  cursor: pointer;
  transition: background-color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.project::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block: 0.7rem;
  inline-size: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--violet), var(--coral));
  opacity: 0;
  transition: opacity 0.15s var(--ease);
}
.project:hover { background: var(--panel); }
.project[aria-current="true"] { background: var(--panel-2); border-color: var(--line); }
.project[aria-current="true"]::before { opacity: 1; }
.project-name { font-weight: 600; font-size: 0.95rem; line-height: 1.45; }
.project-desc {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.rail-foot {
  margin-block-start: auto;
  padding-inline: 0.6rem;
  color: var(--muted);
  font-size: 0.76rem;
  overflow-wrap: anywhere;
}

.stage {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-inline-size: 0;
  min-block-size: 0;
}

.stage-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.8rem;
  padding-inline: 1.5rem;
  border-block-end: 1px solid rgb(42 52 112 / 0.6);
}
.stage-title-wrap { min-inline-size: 0; }
.stage-title { font-size: 1.05rem; font-weight: 700; line-height: 1.4; }
.stage-desc {
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stage-head .btn { flex: none; }

.scroller {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--line) transparent;
  scrollbar-width: thin;
  padding-block: 1.5rem 1rem;
  padding-inline: 1.5rem;
}
.column { inline-size: min(100%, var(--col)); margin-inline: auto; }

/* ───────────── Empty state ───────────── */
.empty { padding-block: clamp(1rem, 7vh, 4.5rem) 1rem; text-align: center; }
.empty-title { margin-block-start: 1rem; font-size: clamp(1.35rem, 3.2vw, 1.8rem); font-weight: 700; line-height: 1.35; }
.empty-sub { margin-block-start: 0.3rem; color: var(--muted); font-size: 0.95rem; }
.suggestions {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-block-start: 1.75rem;
  text-align: start;
}
.suggestion {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  inline-size: 100%;
  block-size: 100%;
  padding-block: 0.8rem;
  padding-inline: 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgb(20 26 58 / 0.7);
  font-size: 0.92rem;
  line-height: 1.6;
  text-align: start;
  cursor: pointer;
  transition: border-color 0.15s var(--ease), background-color 0.15s var(--ease), transform 0.15s var(--ease);
}
.suggestion::before {
  content: "";
  flex: none;
  inline-size: 6px;
  block-size: 6px;
  margin-block-start: 0.62em;
  border-radius: 50%;
  background: var(--coral);
}
.suggestion:hover { border-color: var(--violet-edge); background: var(--panel-2); transform: translateY(-1px); }

/* ───────────── Messages ───────────── */
.messages { display: flex; flex-direction: column; gap: 1.1rem; }
.messages:empty { display: none; }

.msg { max-inline-size: 100%; min-inline-size: 0; overflow-wrap: anywhere; animation: rise 0.22s var(--ease) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.msg-user {
  align-self: flex-end;
  max-inline-size: min(84%, 38rem);
  padding-block: 0.6rem;
  padding-inline: 1rem;
  border-radius: var(--r-lg);
  border-end-end-radius: 6px;
  background: var(--violet-ink);
  box-shadow: inset 0 0 0 1px rgb(164 139 255 / 0.35);
  color: #fff;
  white-space: pre-wrap;
  text-align: start;
}

.msg-assistant {
  align-self: stretch;
  padding-block: 0.95rem;
  padding-inline: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  border-start-start-radius: 6px;
  background: var(--panel);
}

.msg-body > * + * { margin-block-start: 0.7em; }
.msg-body p, .msg-body li, .msg-body h3, .msg-body h4 { text-align: start; unicode-bidi: plaintext; }
.msg-body h3 { font-size: 1.08rem; line-height: 1.45; }
.msg-body h4 { font-size: 1rem; line-height: 1.45; color: var(--violet-2); }
.msg-body ul, .msg-body ol { padding-inline-start: 1.4rem; display: grid; gap: 0.25rem; }
.msg-body li::marker { color: var(--violet-2); }
.msg-body strong { font-weight: 700; color: #fff; }
.msg-body hr { border: 0; border-block-start: 1px solid var(--line); margin-block: 1rem; }

.inline-code {
  direction: ltr;
  unicode-bidi: isolate;
  padding-block: 0.08em;
  padding-inline: 0.38em;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--code-bg);
  font-family: var(--mono);
  font-size: 0.86em;
  color: #D9D2FF;
}

/* Code blocks are always LTR, whatever the page direction. */
.code {
  direction: ltr;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--code-bg);
  overflow: hidden;
}
.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-block: 0.3rem;
  padding-inline: 0.85rem 0.4rem;
  border-block-end: 1px solid var(--line);
  background: rgb(28 36 80 / 0.55);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
}
.code-copy {
  min-block-size: 28px;
  padding-block: 0.15rem;
  padding-inline: 0.6rem;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.76rem;
  cursor: pointer;
}
.code-copy:hover { color: var(--text); border-color: var(--line); background: var(--panel-2); }
.code-copy[data-copied="true"] { color: var(--violet-2); }
.code pre {
  margin: 0;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.6;
  tab-size: 2;
  white-space: pre;
  scrollbar-color: var(--line) transparent;
  scrollbar-width: thin;
}
.code code { font-family: inherit; color: #E3E6FF; }

/* Typing indicator */
.typing { display: inline-flex; align-items: center; gap: 5px; block-size: 1.7em; }
.typing span {
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: var(--violet-2);
  animation: blink 1.2s ease-in-out infinite;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes blink {
  0%, 80%, 100% { opacity: 0.25; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-2px); }
}

.msg-error {
  padding-block: 0.55rem;
  padding-inline: 0.8rem;
  border: 1px solid rgb(255 92 122 / 0.5);
  border-inline-start: 3px solid var(--danger);
  border-radius: var(--r-sm);
  background: var(--danger-wash);
  color: #FFC2CD;
  font-size: 0.9rem;
}
.msg-note { color: var(--muted); font-size: 0.82rem; font-style: normal; }

.msg-foot { margin-block-start: 0.85rem; padding-block-start: 0.7rem; border-block-start: 1px dashed var(--line); display: grid; gap: 0.5rem; }
.sources-label { color: var(--muted); font-size: 0.76rem; font-weight: 600; }
.sources { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  max-inline-size: 100%;
  padding-block: 0.18rem;
  padding-inline: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--violet-wash);
  font-size: 0.78rem;
  line-height: 1.6;
}
.chip-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-inline-size: 16rem; }
.chip-path {
  direction: ltr;
  unicode-bidi: isolate;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-inline-size: 14rem;
}
.msg-meta { color: var(--muted); font-size: 0.74rem; font-variant-numeric: tabular-nums; }

/* ───────────── Composer ───────────── */
.composer {
  padding-block: 0.35rem max(0.7rem, env(safe-area-inset-bottom));
  padding-inline: 1.5rem;
  background: linear-gradient(180deg, transparent, var(--ink) 38%);
}
.composer-box {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding: 0.4rem;
  padding-inline-start: 1rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: 0 12px 34px rgb(4 6 20 / 0.45);
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.composer-box:focus-within {
  border-color: var(--violet-2);
  box-shadow: 0 0 0 3px rgb(124 92 255 / 0.28), 0 12px 34px rgb(4 6 20 / 0.45);
}
.composer-input {
  flex: 1;
  min-inline-size: 0;
  min-block-size: 42px;
  max-block-size: 13rem;
  padding-block: 0.5rem;
  padding-inline: 0;
  border: 0;
  background: transparent;
  resize: none;
  line-height: 1.6;
  text-align: start;
  overflow-y: auto;
  scrollbar-width: thin;
}
.composer-input:focus-visible { outline: none; }
.composer-input::placeholder { color: rgb(154 163 208 / 0.7); }
.composer-hint { margin-block-start: 0.4rem; color: rgb(154 163 208 / 0.75); font-size: 0.72rem; text-align: center; }

/* ───────────── Responsive ───────────── */
@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); }
  .rail {
    flex-direction: row;
    align-items: center;
    padding-block: 0.55rem;
    padding-inline: 1rem;
    border-inline-end: 0;
    border-block-end: 1px solid var(--line);
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }
  .rail::-webkit-scrollbar { display: none; }
  .rail-title, .rail-foot { display: none; }
  .project-list { display: flex; gap: 0.4rem; }
  .project-list li { flex: none; }
  .project {
    padding-block: 0.3rem;
    padding-inline: 0.85rem;
    border-color: var(--line);
    border-radius: 999px;
    white-space: nowrap;
  }
  .project::before { display: none; }
  .project[aria-current="true"] { border-color: var(--violet-2); background: var(--violet-wash); }
  .project-name { font-size: 0.86rem; }
  .project-desc { display: none; }
  .stage-head, .scroller, .composer { padding-inline: 1rem; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }
  .topbar { gap: 0.4rem; }
  .topbar-actions { gap: 0.35rem; }
  .brand-name { font-size: 0.98rem; }
  .pill { padding-inline: 0.55rem; max-inline-size: 8.5rem; }
  .btn-icon-text .btn-text { display: none; }
  .topbar .btn-sm { padding-inline: 0.6rem; }
  .stage-head { padding-block: 0.6rem; }
  .stage-desc { white-space: normal; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2; }
  .suggestions { grid-template-columns: minmax(0, 1fr); }
  .msg-user { max-inline-size: 92%; }
  .msg-assistant { padding-inline: 0.9rem; }
  .composer-hint { display: none; }
  .gate-card { padding: 1.6rem 1.2rem 1.3rem; }
}

@media (max-width: 400px) {
  .pill { max-inline-size: none; padding-inline: 0.5rem; }
  .pill-text {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .stage-head .btn-icon-text span { display: none; }
  .stage-head .btn { inline-size: 36px; padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .typing span { opacity: 0.7; }
}

@media (forced-colors: active) {
  .btn, .project, .suggestion, .pill, .chip { border: 1px solid ButtonText; }
  .project[aria-current="true"] { outline: 2px solid Highlight; }
}

/* Integration fixes: source chips must shrink inside narrow bubbles (mobile). */
.msg-foot > * { min-inline-size: 0; }
.sources > li { min-inline-size: 0; max-inline-size: 100%; }
.chip { min-inline-size: 0; }
.chip-title, .chip-path { min-inline-size: 0; flex: 0 1 auto; }