/* =============================================================
   BLACKNODE v3 — /agent page specific styles
   ============================================================= */

.ag-body { background: transparent; }

/* ============ APP SHELL (2-column: rail + main) ============ */
/* Note: 2026-05-23 — dropped the right sidebar grid track since
   /agent now ships the right-side live-browser panel INSIDE .ag-main
   via .ag-workarea split-view. The third 320px track was wasted space. */
.ag-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: 100vh;
}
.ag-shell--no-sidebar { grid-template-columns: 240px minmax(0, 1fr); }
@media (max-width: 1100px) {
  .ag-shell, .ag-shell--no-sidebar { grid-template-columns: 64px minmax(0, 1fr); }
  .ag-shell .ag-sidebar { display: none; }
  .ag-rail__label { display: none; }
}

/* ============ LEFT RAIL (vertical nav) ============ */
.ag-rail {
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: var(--bn-s-1);
  padding: var(--bn-s-5) var(--bn-s-3);
  background: var(--bn-bg-page);
  border-right: 1px solid var(--bn-border-soft);
}
.ag-rail__logo {
  display: flex;
  align-items: center;
  gap: var(--bn-s-2);
  padding: var(--bn-s-2);
  margin-bottom: var(--bn-s-5);
  color: var(--bn-ink);
  font-weight: var(--bn-fw-semibold);
  font-size: var(--bn-text-md);
  letter-spacing: var(--bn-ls-tight);
}
.ag-rail__logo svg { width: 22px; height: 22px; }
.ag-rail__btn {
  display: flex;
  align-items: center;
  gap: var(--bn-s-3);
  padding: 9px 12px;
  background: transparent;
  border: none;
  border-radius: var(--bn-r-md);
  color: var(--bn-ink-secondary);
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-regular);
  cursor: pointer;
  text-align: left;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-rail__btn:hover { background: var(--bn-bg-surface-1); color: var(--bn-ink); }
.ag-rail__btn--active {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink);
  font-weight: var(--bn-fw-medium);
}
.ag-rail__btn iconify-icon, .ag-rail__btn svg.lucide {
  width: 18px; height: 18px;
  color: currentColor;
}
.ag-rail__spacer { flex: 1; }
.ag-rail__section-label {
  font-size: 11px;
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--bn-s-3) var(--bn-s-3) var(--bn-s-2);
}

/* ============ MAIN PANE ============ */
.ag-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
}
.ag-topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bn-s-4);
  padding: var(--bn-s-3) var(--bn-s-7);
  border-bottom: 1px solid var(--bn-border-soft);
  background: rgba(248, 246, 242, 0.78);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  position: sticky;
  top: 0;
  z-index: var(--bn-z-sticky);
}
.ag-topnav__search {
  display: inline-flex;
  align-items: center;
  gap: var(--bn-s-2);
  padding: 7px 14px 7px 10px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-pill);
  color: var(--bn-ink-muted);
  font-size: var(--bn-text-sm);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), border-color var(--bn-dur-fast) var(--bn-ease);
}
.ag-topnav__search:hover { background: var(--bn-bg-surface-2); border-color: var(--bn-border); }
.ag-topnav__actions { display: flex; align-items: center; gap: var(--bn-s-2); flex-shrink: 0; }
.ag-topnav .bn-tabs { min-width: 0; flex-shrink: 1; }

/* ============ HERO ============ */
.ag-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--bn-s-12) var(--bn-s-7);
  text-align: center;
  position: relative;
  isolation: isolate;
}
.ag-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--bn-s-2);
  margin-bottom: var(--bn-s-5);
  padding: 5px 13px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-pill);
  font-size: var(--bn-text-xs);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink-secondary);
}
.ag-hero__eyebrow iconify-icon { color: var(--bn-accent); }
.ag-hero__title {
  font-family: var(--bn-font-display);
  font-size: clamp(40px, 5.6vw, 64px);
  font-weight: var(--bn-fw-medium);
  line-height: var(--bn-lh-tight);
  letter-spacing: var(--bn-ls-tighter);
  color: var(--bn-ink);
  margin: 0 0 var(--bn-s-4) 0;
  max-width: 880px;
}
.ag-hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--bn-accent) 0%, #B83218 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ag-hero__sub {
  font-size: var(--bn-text-lg);
  color: var(--bn-ink-secondary);
  line-height: var(--bn-lh-relaxed);
  margin: 0 0 var(--bn-s-8) 0;
  max-width: 600px;
}
.ag-hero__composer {
  width: min(720px, 100%);
  margin-bottom: var(--bn-s-7);
}
.ag-hero__suggestions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--bn-s-3);
  width: min(900px, 100%);
}
@media (max-width: 720px) {
  .ag-hero__suggestions { grid-template-columns: 1fr; }
}
.ag-suggest {
  display: flex;
  align-items: flex-start;
  gap: var(--bn-s-3);
  padding: var(--bn-s-4) var(--bn-s-5);
  text-align: left;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-lg);
  cursor: pointer;
  transition:
    background var(--bn-dur) var(--bn-ease),
    border-color var(--bn-dur) var(--bn-ease),
    transform var(--bn-dur) var(--bn-ease);
}
.ag-suggest:hover {
  background: var(--bn-bg-surface-2);
  border-color: var(--bn-border-strong);
  transform: translateY(-1px);
}
.ag-suggest__icon {
  width: 32px; height: 32px;
  display: grid;
  place-items: center;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-sm);
  flex-shrink: 0;
}
.ag-suggest__icon iconify-icon { color: var(--bn-accent); width: 16px; height: 16px; }
.ag-suggest__title {
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
  margin-bottom: 2px;
  line-height: var(--bn-lh-snug);
}
.ag-suggest__desc {
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-muted);
  line-height: var(--bn-lh-snug);
}

/* ============ SIDEBAR (right) ============ */
.ag-sidebar {
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  padding: var(--bn-s-7) var(--bn-s-5);
  background: var(--bn-bg-page);
  border-left: 1px solid var(--bn-border-soft);
  overflow-y: auto;
}
.ag-sidebar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--bn-s-4);
}
.ag-sidebar__title {
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink);
}
.ag-sidebar__list { display: grid; gap: var(--bn-s-2); }

.ag-profile-card {
  display: flex;
  align-items: center;
  gap: var(--bn-s-3);
  padding: var(--bn-s-3);
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-md);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), border-color var(--bn-dur-fast) var(--bn-ease);
}
.ag-profile-card:hover { background: var(--bn-bg-surface-2); border-color: var(--bn-border); }
.ag-profile-card__icon {
  width: 32px; height: 32px;
  display: grid;
  place-items: center;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-sm);
  font-size: 14px;
  color: var(--bn-ink-secondary);
  flex-shrink: 0;
}
.ag-profile-card__name {
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
}
.ag-profile-card__desc {
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-muted);
}

/* ============ CHAT VIEW ============ */
.ag-chat[hidden] { display: none !important; }
.ag-hero[hidden] { display: none !important; }
.ag-gate[hidden] { display: none !important; }
.ag-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 820px;
  margin: 0 auto;
  width: 100%;
  padding: var(--bn-s-7) var(--bn-s-6);
}
.ag-msg {
  display: flex;
  gap: var(--bn-s-3);
  margin-bottom: var(--bn-s-5);
  animation: ag-msg-in var(--bn-dur-slow) var(--bn-ease);
}
.ag-msg__avatar {
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--bn-r-pill);
  flex-shrink: 0;
  font-size: var(--bn-text-xs);
  font-weight: var(--bn-fw-medium);
}
.ag-msg--user .ag-msg__avatar {
  background: var(--bn-ink);
  color: var(--bn-ink-inverse);
}
.ag-msg--assistant .ag-msg__avatar {
  background: var(--bn-accent-soft);
  color: var(--bn-accent);
}
.ag-msg__body {
  flex: 1;
  font-size: var(--bn-text-base);
  line-height: var(--bn-lh-relaxed);
  color: var(--bn-ink);
  padding-top: 3px;
}
@keyframes ag-msg-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ag-chat__footer {
  position: sticky;
  bottom: 0;
  padding: var(--bn-s-4) 0;
  background: linear-gradient(180deg, transparent, var(--bn-bg-page) 30%);
}

/* ============ TOASTS (JS uses .ag-toast / .ag-toast--kind) ============ */
.bn-toasts, #agToasts {
  position: fixed;
  bottom: var(--bn-s-5);
  right: var(--bn-s-5);
  top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--bn-s-2);
  z-index: var(--bn-z-toast);
  pointer-events: none;
  max-width: 380px;
}
.ag-toast {
  display: flex;
  align-items: center;
  gap: var(--bn-s-3);
  padding: 12px 16px;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-md);
  color: var(--bn-ink);
  font-size: var(--bn-text-sm);
  box-shadow: var(--bn-shadow-lg);
  pointer-events: auto;
  animation: bn-toast-in var(--bn-dur-slow) var(--bn-ease-spring);
}
.ag-toast--success {
  border-left: 3px solid var(--bn-success);
}
.ag-toast--success::before {
  content: '✓';
  font-weight: 700;
  color: var(--bn-success);
}
.ag-toast--error {
  border-left: 3px solid var(--bn-danger);
}
.ag-toast--error::before {
  content: '!';
  width: 18px; height: 18px;
  display: grid; place-items: center;
  background: var(--bn-danger);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.ag-toast--info {
  border-left: 3px solid var(--bn-info);
}
.ag-toast--info::before {
  content: 'i';
  width: 18px; height: 18px;
  display: grid; place-items: center;
  background: var(--bn-info);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.ag-toast__msg { flex: 1; }
.ag-toast__btn {
  margin-left: auto;
  padding: 4px 10px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink);
  font-size: var(--bn-text-xs);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease);
}
.ag-toast__btn:hover { background: var(--bn-bg-surface-2); }

@media (max-width: 600px) {
  .bn-toasts, #agToasts {
    left: 12px;
    right: 12px;
    bottom: 12px;
    max-width: calc(100vw - 24px);
  }
}

/* Typing dots while assistant is thinking */
.ag-msg__dots {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 2px;
}
.ag-msg__dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bn-ink-muted);
  opacity: 0.4;
  animation: ag-typing 1.2s ease-in-out infinite;
}
.ag-msg__dots span:nth-child(2) { animation-delay: 0.15s; }
.ag-msg__dots span:nth-child(3) { animation-delay: 0.30s; }
@keyframes ag-typing {
  0%, 60%, 100% { opacity: 0.25; transform: translateY(0); }
  30%           { opacity: 1;    transform: translateY(-3px); }
}

.ag-msg--user {
  justify-content: flex-end;
}
.ag-msg--user .ag-msg__body {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink);
  padding: 10px 16px;
  border-radius: 18px 18px 4px 18px;
  max-width: 78%;
}
.ag-msg--assistant {
  justify-content: flex-start;
}
.ag-msg--assistant .ag-msg__body,
.ag-msg--assistant {
  max-width: 92%;
}

/* ============ CONNECTOR LIST (inside sidebar tab) ============ */
.ag-connectors__list { display: grid; gap: var(--bn-s-2); }
.ag-connector {
  display: grid;
  grid-template-columns: 36px 1fr;
  grid-template-rows: auto auto;
  column-gap: var(--bn-s-3);
  row-gap: var(--bn-s-2);
  padding: var(--bn-s-3);
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-md);
  transition: background var(--bn-dur-fast) var(--bn-ease), border-color var(--bn-dur-fast) var(--bn-ease);
}
.ag-connector:hover { background: var(--bn-bg-surface-2); border-color: var(--bn-border); }
.ag-connector__icon {
  grid-row: 1;
  grid-column: 1;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--bn-r-sm);
  overflow: hidden;
}
.ag-connector__icon--brand {
  box-shadow: 0 0 0 1px rgba(255,255,255,0.06), inset 0 0 0 1px rgba(255,255,255,0.04);
}
.ag-connector__icon--brand iconify-icon {
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.25));
  width: 18px;
  height: 18px;
}
.ag-connector__body {
  grid-row: 1;
  grid-column: 2;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bn-s-2);
}
.ag-connector__text { min-width: 0; flex: 1; }
.ag-connector__name {
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
  line-height: 1.25;
}
.ag-connector__sub {
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-muted);
  margin-top: 2px;
  line-height: 1.3;
}
.ag-connector__status {
  font-size: 9px;
  font-weight: var(--bn-fw-medium);
  padding: 3px 7px;
  border-radius: var(--bn-r-pill);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}
.ag-connector__status--connected {
  background: rgba(74, 124, 89, 0.14);
  color: var(--bn-success);
}
.ag-connector__status--available {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink-muted);
}
.ag-connector__btn {
  grid-row: 2;
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--bn-ink);
  color: var(--bn-ink-inverse);
  border: none;
  border-radius: var(--bn-r-pill);
  font-family: var(--bn-font-sans);
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), transform var(--bn-dur-fast) var(--bn-ease);
}
.ag-connector__btn iconify-icon {
  width: 14px;
  height: 14px;
}
.ag-connector__btn:hover {
  background: var(--bn-accent);
  color: #fff;
  transform: translateY(-1px);
}
.ag-connector__btn--connected {
  background: rgba(74, 124, 89, 0.14);
  color: var(--bn-success);
}
.ag-connector__btn--connected:hover {
  background: rgba(74, 124, 89, 0.20);
  color: var(--bn-success);
}
[data-theme="dark"] .ag-connector__btn { background: var(--bn-accent); color: #fff; }
[data-theme="dark"] .ag-connector__btn:hover { background: var(--bn-accent-hover); }

/* =====================================================================
   ATTACH STRIP + MIC RECORDING
   ===================================================================== */
.ag-attach-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.ag-attach-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-pill);
  font-size: var(--bn-text-xs);
  color: var(--bn-ink);
}
.ag-attach-chip iconify-icon {
  width: 13px;
  height: 13px;
  color: var(--bn-accent);
}
.ag-attach-chip__name {
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ag-attach-chip__size {
  color: var(--bn-ink-muted);
  font-size: 10px;
}
.ag-attach-chip__x {
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  background: transparent;
  border: none;
  color: var(--bn-ink-muted);
  cursor: pointer;
  border-radius: 50%;
}
.ag-attach-chip__x:hover {
  background: rgba(26, 24, 21, 0.06);
  color: var(--bn-ink);
}
.ag-attach-chip__x iconify-icon { width: 11px; height: 11px; }

/* Mic recording pulse */
.ag-mic-btn.is-recording iconify-icon {
  color: var(--bn-accent) !important;
}
.ag-mic-btn.is-recording {
  position: relative;
}
.ag-mic-btn.is-recording::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: rgba(233, 75, 44, 0.20);
  animation: ag-mic-pulse 1s ease-in-out infinite;
  pointer-events: none;
}
@keyframes ag-mic-pulse {
  0%, 100% { transform: scale(0.85); opacity: 0.6; }
  50%      { transform: scale(1.10); opacity: 1; }
}

/* ============ MEMORY VIEW (sidebar tab) ============ */
.ag-memory__title {
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink);
  margin-bottom: var(--bn-s-3);
}
.ag-mem-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--bn-s-2);
  margin: 0 6px 6px 0;
  padding: 5px 11px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-pill);
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-secondary);
}

/* ============ EMPTY STATE ============ */
.ag-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--bn-s-9) var(--bn-s-5);
  color: var(--bn-ink-muted);
}
.ag-empty iconify-icon { font-size: 32px; margin-bottom: var(--bn-s-3); opacity: 0.5; }
.ag-empty h3 {
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
  margin: 0 0 var(--bn-s-2);
}
.ag-empty p { font-size: var(--bn-text-sm); margin: 0; }

/* ============ TOOLTIP ============ */
[data-bn-tooltip] { position: relative; }
[data-bn-tooltip]::after {
  content: attr(data-bn-tooltip);
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  padding: 6px 10px;
  background: var(--bn-bg-inverse);
  color: var(--bn-ink-inverse);
  font-size: var(--bn-text-xs);
  white-space: nowrap;
  border-radius: var(--bn-r-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--bn-dur-fast) var(--bn-ease);
}
[data-bn-tooltip]:hover::after { opacity: 1; }

/* =====================================================================
   HIGGSFIELD-GRADE POLISH (overnight 2026-05-19 round 2)
   ===================================================================== */

/* Cursor spotlight — coral ambient that follows mouse on hero */
.ag-body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(
      circle 500px at var(--mouse-x, 80%) var(--mouse-y, 30%),
      rgba(233, 75, 44, 0.05),
      transparent 60%
    );
  transition: background 200ms ease;
}
.ag-shell { position: relative; z-index: 1; }

/* Hero title — animated fade-up entrance */
.ag-hero__eyebrow,
.ag-hero__title,
.ag-hero__sub,
.ag-hero__composer,
.ag-hero__suggestions {
  animation: ag-fade-up 600ms cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
.ag-hero__eyebrow     { animation-delay: 0ms; }
.ag-hero__title       { animation-delay: 80ms; }
.ag-hero__sub         { animation-delay: 160ms; }
.ag-hero__composer    { animation-delay: 240ms; }
.ag-hero__suggestions { animation-delay: 320ms; }
@keyframes ag-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Composer focus glow — premium accent ring */
.ag-hero__composer .bn-composer:focus-within {
  border-color: var(--bn-accent) !important;
  box-shadow:
    0 0 0 4px rgba(233, 75, 44, 0.12),
    0 12px 32px rgba(26, 24, 21, 0.10),
    var(--bn-inset-highlight) !important;
}

/* Send button — coral on hover (matches accent) */
.bn-composer__send:hover {
  background: var(--bn-accent) !important;
}
.bn-composer__send {
  transition: background 200ms ease, transform 160ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Suggestion card hover — coral border + subtle lift */
.ag-suggest {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.ag-suggest::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 200px at var(--card-mx, -100px) var(--card-my, -100px), rgba(233, 75, 44, 0.10), transparent 60%);
  opacity: 0;
  transition: opacity 260ms ease;
  pointer-events: none;
  z-index: -1;
}
.ag-suggest:hover::before { opacity: 1; }
.ag-suggest:hover .ag-suggest__icon {
  background: var(--bn-accent-soft);
  border-color: rgba(233, 75, 44, 0.30);
}
.ag-suggest:hover .ag-suggest__icon iconify-icon {
  color: var(--bn-accent);
}

/* Rail icon spring on hover */
.ag-rail__btn {
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    color var(--bn-dur-fast) var(--bn-ease),
    transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ag-rail__btn:hover iconify-icon {
  transform: scale(1.1);
}
.ag-rail__btn iconify-icon {
  transition: transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Avatar focus + sign-in pill polish */
.bn-avatar--signed-out {
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    border-color var(--bn-dur-fast) var(--bn-ease),
    transform var(--bn-dur-fast) var(--bn-ease);
}
.bn-avatar--signed-out:hover {
  background: var(--bn-bg-surface-2);
  border-color: var(--bn-border-strong);
  transform: translateY(-1px);
}

/* Top tabs animated active indicator */
.bn-tab {
  position: relative;
  transition: color var(--bn-dur-fast) var(--bn-ease);
}
.bn-tab.is-active {
  animation: bn-tab-pop 320ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes bn-tab-pop {
  0% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* "New task" CTA — subtle glow pulse */
#newTaskBtn {
  position: relative;
}
#newTaskBtn::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--bn-r-pill);
  background: linear-gradient(135deg, var(--bn-accent), #FBA94C);
  opacity: 0;
  z-index: -1;
  filter: blur(10px);
  transition: opacity 260ms ease;
}
#newTaskBtn:hover::before { opacity: 0.6; }

/* =====================================================================
   MOBILE — full responsive (375px+)
   ===================================================================== */

/* Tablet collapse: rail icon-only */
@media (max-width: 1100px) {
  .ag-shell {
    grid-template-columns: 64px minmax(0, 1fr) !important;
  }
  .ag-sidebar { display: none; }
  .ag-rail { padding: 12px 8px; }
  .ag-rail__logo {
    justify-content: center;
    padding: 8px 4px;
  }
  .ag-rail__logo span,
  .ag-rail__label { display: none; }
  .ag-rail__btn {
    justify-content: center;
    padding: 9px 0;
  }
  .ag-rail__section-label { display: none; }
  .ag-topnav { padding: 12px 16px; }
  .ag-hero { padding: 48px 24px; }
}

/* Mobile 720px and below */
@media (max-width: 720px) {
  .ag-shell {
    grid-template-columns: 1fr !important;
  }
  .ag-rail {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    height: 60px;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--bn-border-soft);
    border-right: none;
    background: rgba(248, 246, 242, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    z-index: 50;
    padding: 6px 8px;
    gap: 0;
  }
  .ag-rail__logo,
  .ag-rail__section-label,
  .ag-rail__spacer,
  .ag-rail__btn[id="agSettingsBtn"] {
    display: none;
  }
  .ag-rail__btn {
    flex: 1;
    flex-direction: column;
    gap: 2px;
    padding: 6px 0;
    font-size: 10px;
    border-radius: var(--bn-r-sm);
    color: var(--bn-ink-muted);
  }
  .ag-rail__btn .ag-rail__label {
    display: block !important;
    font-size: 9px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  .ag-rail__btn iconify-icon {
    width: 20px !important;
    height: 20px !important;
  }
  .ag-rail__btn[data-bn-tooltip]::after { display: none; }
  .ag-rail__btn--active { color: var(--bn-accent); background: transparent; }

  .ag-main { padding-bottom: 70px; }
  .ag-topnav {
    padding: 8px 12px;
    gap: 8px;
    flex-wrap: wrap;
  }
  .ag-topnav .bn-tabs { display: none; }
  .ag-topnav__actions { width: 100%; justify-content: space-between; gap: 6px; }
  .ag-topnav__search { padding: 6px 10px 6px 10px; font-size: 12px; }
  .ag-topnav__search kbd { display: none; }
  #newTaskBtn { padding: 7px 12px; font-size: 12px; }
  #newTaskBtn iconify-icon { display: none; }

  .ag-hero { padding: 32px 16px 24px; }
  .ag-hero__title { font-size: clamp(32px, 9vw, 44px); }
  .ag-hero__sub { font-size: 14px; padding: 0 8px; }
  .ag-hero__eyebrow { font-size: 11px; }
  .ag-hero__composer { width: 100%; padding: 0 8px; }
  .ag-hero__suggestions {
    grid-template-columns: 1fr !important;
    gap: 8px;
    padding: 0 8px;
  }
  .ag-suggest { padding: 12px 14px; }

  .ag-chat { padding: 16px 12px 24px; }
  .ag-chat__footer { padding: 12px 8px; }
}

/* =====================================================================
   TOP-TIER SETTINGS DRAWER (Anthropic / Linear style)
   ===================================================================== */
.ag-settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 24, 21, 0.32);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  animation: bn-fade-in 200ms var(--bn-ease);
}
.ag-settings-drawer {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(880px, calc(100vw - 32px));
  height: min(640px, calc(100vh - 32px));
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-2xl);
  box-shadow: var(--bn-shadow-xl);
  z-index: 101;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: ag-settings-in var(--bn-dur) var(--bn-ease-spring);
}
@keyframes ag-settings-in {
  from { opacity: 0; transform: translate(-50%, -48%) scale(0.96); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.ag-settings__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--bn-border-soft);
}
.ag-settings__title {
  font-family: var(--bn-font-display);
  font-size: 18px;
  font-weight: var(--bn-fw-semibold);
  letter-spacing: var(--bn-ls-tight);
}
.ag-settings__close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: transparent;
  border: none;
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink-secondary);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-settings__close:hover {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink);
}

.ag-settings__body {
  flex: 1;
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 0;
}
.ag-settings__nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px;
  border-right: 1px solid var(--bn-border-soft);
  background: var(--bn-bg-surface-1);
  overflow-y: auto;
}
.ag-settings__nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--bn-r-md);
  color: var(--bn-ink-secondary);
  font-size: 14px;
  font-weight: var(--bn-fw-regular);
  text-align: left;
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-settings__nav-btn iconify-icon {
  width: 16px; height: 16px;
  color: currentColor;
  flex-shrink: 0;
}
.ag-settings__nav-btn:hover {
  background: rgba(26, 24, 21, 0.04);
  color: var(--bn-ink);
}
.ag-settings__nav-btn.is-active {
  background: var(--bn-bg-page);
  color: var(--bn-ink);
  font-weight: var(--bn-fw-medium);
}

.ag-settings__content {
  overflow-y: auto;
  padding: 24px 28px;
  position: relative;
}
.ag-settings__pane {
  display: none;
  animation: bn-fade-in 200ms var(--bn-ease);
}
.ag-settings__pane.is-active { display: block; }
.ag-settings__pane-title {
  font-family: var(--bn-font-display);
  font-size: 20px;
  font-weight: var(--bn-fw-semibold);
  margin-bottom: 18px;
  letter-spacing: var(--bn-ls-tight);
}
.ag-settings__row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--bn-border-soft);
}
.ag-settings__row:last-of-type { border-bottom: none; }
.ag-settings__row-label {
  font-size: 12px;
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.ag-settings__row-value {
  font-size: 14px;
  color: var(--bn-ink);
  font-weight: var(--bn-fw-medium);
}
.ag-settings__row-spacer { height: 12px; }
.ag-settings__caption {
  color: var(--bn-ink-secondary);
  font-size: 13px;
  line-height: 1.6;
  margin: 8px 0;
}
.ag-settings__avatar {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--bn-ink);
  color: var(--bn-ink-inverse);
  border-radius: var(--bn-r-pill);
  font-weight: var(--bn-fw-semibold);
  font-size: 16px;
  flex-shrink: 0;
}
.ag-settings__provider-icon {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--bn-r-sm);
  flex-shrink: 0;
}

/* Theme picker */
.ag-settings__theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.ag-settings__theme {
  background: transparent;
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-md);
  padding: 12px;
  cursor: pointer;
  transition: border-color var(--bn-dur-fast) var(--bn-ease), background var(--bn-dur-fast) var(--bn-ease);
  text-align: center;
}
.ag-settings__theme:hover { border-color: var(--bn-border-strong); }
.ag-settings__theme.is-active {
  border-color: var(--bn-accent);
  background: var(--bn-accent-soft);
}
.ag-settings__theme-swatch {
  width: 100%;
  height: 64px;
  border-radius: var(--bn-r-sm);
  position: relative;
  margin-bottom: 8px;
  overflow: hidden;
}
.ag-settings__theme-accent {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(0,0,0,0.1);
}
.ag-settings__theme-label {
  font-size: 13px;
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
}

/* Mobile drawer — full screen */
@media (max-width: 720px) {
  .ag-settings-drawer {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    top: 0; left: 0;
    transform: none;
  }
  .ag-settings__body {
    grid-template-columns: 1fr;
  }
  .ag-settings__nav {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--bn-border-soft);
    padding: 8px;
    gap: 4px;
  }
  .ag-settings__nav::-webkit-scrollbar { display: none; }
  .ag-settings__nav-btn {
    flex-shrink: 0;
    padding: 6px 12px;
  }
}

/* Touch target sizing — every clickable element min 36px */
@media (pointer: coarse) {
  .bn-btn { min-height: 36px; }
  .bn-composer__icon-btn,
  .bn-composer__send,
  .bn-tab { min-height: 36px; }
  .ag-rail__btn { min-height: 40px; }
}

/* =====================================================================
   BLACKNODE-APP /agent additions (2026-05-23)
   - Recent tasks rail list
   - Tool-use pills
   - Thinking note + error banner
   - Workspace gate
   - Chat head with status
   ===================================================================== */

/* Recent tasks list inside left rail */
.ag-rail__tasks {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 240px;
  overflow-y: auto;
  padding: 0 4px;
  margin-bottom: var(--bn-s-3);
}
.ag-rail__empty {
  font-size: 11px;
  color: var(--bn-ink-muted);
  padding: 4px 8px;
}
.ag-rail__task {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: transparent;
  border: none;
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink-secondary);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-rail__task:hover {
  background: var(--bn-bg-surface-1);
  color: var(--bn-ink);
}
.ag-rail__task iconify-icon { font-size: 12px; flex-shrink: 0; opacity: 0.7; }
.ag-rail__task-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.ag-rail__clear {
  align-self: flex-end;
  background: transparent;
  border: none;
  color: var(--bn-ink-muted);
  font-size: 10px;
  font-weight: 500;
  padding: 2px 6px;
  margin: 0 4px 4px auto;
  cursor: pointer;
  border-radius: var(--bn-r-xs);
  transition: color var(--bn-dur-fast) var(--bn-ease), background var(--bn-dur-fast) var(--bn-ease);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.ag-rail__clear:hover {
  color: var(--bn-ink);
  background: var(--bn-bg-surface-1);
}

/* Hide rail recent-tasks list on mobile bottom bar */
@media (max-width: 720px) {
  .ag-rail__tasks,
  .ag-rail__section-label { display: none !important; }
}

/* Chat header */
.ag-chat__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bn-s-3);
  padding: var(--bn-s-4) 0 var(--bn-s-4);
  border-bottom: 1px solid var(--bn-border-soft);
  margin-bottom: var(--bn-s-5);
}
.ag-chat__title {
  font-size: var(--bn-text-lg);
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink);
  letter-spacing: var(--bn-ls-tight);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ag-chat__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-muted);
  padding: 4px 10px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-pill);
}
.ag-chat__status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bn-ink-muted);
  flex-shrink: 0;
}
.ag-chat__status[data-state="running"] .ag-chat__status-dot,
.ag-chat__status[data-state="thinking"] .ag-chat__status-dot {
  background: var(--bn-accent);
  animation: ag-pulse 1.4s ease-in-out infinite;
}
.ag-chat__status[data-state="done"]  .ag-chat__status-dot { background: var(--bn-success); animation: none; }
.ag-chat__status[data-state="error"] .ag-chat__status-dot { background: var(--bn-danger); animation: none; }
@keyframes ag-pulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 1; }
}

/* Messages scroller */
.ag-chat__messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-bottom: var(--bn-s-4);
  min-height: 240px;
}

/* Tool pill in chat */
.ag-tool {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0 6px 40px;
  padding: 6px 12px;
  max-width: calc(100% - 40px);
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-pill);
  font-size: 12px;
  color: var(--bn-ink-secondary);
  flex-wrap: wrap;
  cursor: default;
  align-self: flex-start;
}
.ag-tool--has-result { cursor: pointer; }
.ag-tool--has-result:hover { background: var(--bn-bg-surface-2); }
.ag-tool__icon iconify-icon { font-size: 12px; color: var(--bn-accent); }
.ag-tool__name {
  font-family: var(--bn-font-mono);
  font-size: 11px;
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
}
.ag-tool__input {
  font-family: var(--bn-font-mono);
  font-size: 11px;
  color: var(--bn-ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
}
.ag-tool__status {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bn-ink-muted);
  padding: 2px 6px;
  background: var(--bn-bg-page);
  border-radius: var(--bn-r-pill);
}
.ag-tool--done .ag-tool__status { color: var(--bn-success); }
.ag-tool--error { border-color: rgba(176, 41, 27, 0.3); background: rgba(176, 41, 27, 0.05); }
.ag-tool--error .ag-tool__status { color: var(--bn-danger); }
.ag-tool__body {
  width: 100%;
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-md);
  font-family: var(--bn-font-mono);
  font-size: 11px;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow-y: auto;
  color: var(--bn-ink-secondary);
}
.ag-tool--expanded { border-radius: var(--bn-r-md); }

/* Thinking note */
.ag-thinking {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 6px 0 6px 40px;
  padding: 4px 10px;
  font-size: 11px;
  color: var(--bn-ink-muted);
  font-style: italic;
}
.ag-thinking iconify-icon {
  font-size: 12px;
  color: var(--bn-ink-muted);
  animation: ag-spin 1.6s linear infinite;
}
@keyframes ag-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Inline error banner inside chat */
.ag-error {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 10px 0;
  padding: 12px 14px;
  background: rgba(176, 41, 27, 0.08);
  border: 1px solid rgba(176, 41, 27, 0.30);
  border-radius: var(--bn-r-md);
  color: var(--bn-danger);
  font-size: var(--bn-text-sm);
}
.ag-error iconify-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* Workspace gate state */
.ag-gate {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--bn-s-12) var(--bn-s-7);
  gap: var(--bn-s-3);
}
.ag-gate__icon {
  font-size: 56px;
  color: var(--bn-ink-muted);
  margin-bottom: var(--bn-s-2);
  opacity: 0.6;
}
.ag-gate__title {
  font-family: var(--bn-font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: var(--bn-fw-semibold);
  letter-spacing: var(--bn-ls-tight);
  margin: 0;
  color: var(--bn-ink);
}
.ag-gate__sub {
  font-size: var(--bn-text-base);
  color: var(--bn-ink-secondary);
  max-width: 520px;
  line-height: var(--bn-lh-relaxed);
  margin: 0;
}
.ag-gate__actions {
  display: flex;
  gap: var(--bn-s-3);
  margin-top: var(--bn-s-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* Advanced rail btn (Open in VS Code) — secondary accent */
.ag-rail__btn--advanced {
  color: var(--bn-accent-strong);
  border: 1px dashed var(--bn-border);
  margin-top: var(--bn-s-2);
}
.ag-rail__btn--advanced:hover {
  background: var(--bn-accent-soft);
  border-style: solid;
  border-color: rgba(233, 75, 44, 0.30);
  color: var(--bn-accent);
}

/* Sign-in pill avatar fallback (when not signed in) — match other pages */
.bn-avatar--signed-out {
  padding: 6px 12px;
  font-size: var(--bn-text-sm);
  width: auto;
  border-radius: var(--bn-r-pill);
}

/* Dark theme adjustments */
[data-theme="dark"] .ag-chat__status { background: var(--bn-bg-surface-1); border-color: var(--bn-border); }
[data-theme="dark"] .ag-tool { background: var(--bn-bg-surface-1); border-color: var(--bn-border); }
[data-theme="dark"] .ag-tool__body { background: var(--bn-bg-page); border-color: var(--bn-border); }
[data-theme="dark"] .ag-topnav {
  background: rgba(14, 13, 11, 0.78);
}
[data-theme="dark"] .ag-rail {
  background: var(--bn-bg-page);
}
[data-theme="dark"] .ag-rail__btn--advanced {
  color: var(--bn-accent);
  border-color: var(--bn-border);
}
[data-theme="dark"] .ag-rail__btn--advanced:hover {
  color: #fff;
  background: var(--bn-accent);
}

/* SR-only utility (reuse pattern from app) */
.bn-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Composer disabled state */
.bn-composer__field:disabled { opacity: 0.6; cursor: not-allowed; }
.bn-composer__send:disabled, .bn-composer__icon-btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* Mobile: hide topnav search + adjust */
@media (max-width: 720px) {
  .ag-topnav__search { display: none; }
  .ag-chat { padding: var(--bn-s-3) var(--bn-s-3) 80px; }
  .ag-chat__head { padding: var(--bn-s-2) 0; margin-bottom: var(--bn-s-3); }
  .ag-tool, .ag-thinking { margin-left: 0; }
  /* Prevent composer overflow on small screens */
  .bn-composer { box-sizing: border-box; max-width: 100%; }
  .ag-hero__composer { box-sizing: border-box; }
}

/* Compose box-sizing fix for all viewports */
.bn-composer { box-sizing: border-box; max-width: 100%; }
.ag-hero__composer, .ag-chat__footer { box-sizing: border-box; max-width: 100%; }
.ag-hero, .ag-chat, .ag-gate, .ag-main { max-width: 100%; overflow-x: clip; }

/* =====================================================================
   SPLIT-VIEW WORKAREA — chat left + live browser right
   2026-05-23 — AdsPower / Manus / Devin grade UX
   ===================================================================== */

/* Workarea wraps chat + browser panel; .ag-main is column flex */
.ag-workarea {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 0;
  position: relative;
  overflow: hidden;
}
.ag-workarea[data-view="chat-only"]    { grid-template-columns: minmax(0, 1fr); }
.ag-workarea[data-view="split"]        { grid-template-columns: minmax(360px, 1fr) minmax(440px, 1.1fr); }
.ag-workarea[data-view="browser-only"] { grid-template-columns: 0 minmax(0, 1fr); }

.ag-workarea__chat {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
  grid-column: 1;       /* anchor in first track to avoid auto-placement collapse */
}
.ag-workarea[data-view="browser-only"] .ag-workarea__chat {
  display: none;
}

/* When split, soft border between chat and panel */
.ag-workarea[data-view="split"] .ag-bp {
  border-left: 1px solid var(--bn-border-soft);
}

/* Topnav adapts when panel open: hide secondary nav tabs to give actions room */
.ag-main:has(.ag-workarea[data-view="split"])    .ag-topnav .bn-tabs,
.ag-main:has(.ag-workarea[data-view="browser-only"]) .ag-topnav .bn-tabs {
  display: none;
}
@media (max-width: 1400px) {
  /* Also hide the search pill when split to keep room for Watch + New task */
  .ag-main:has(.ag-workarea[data-view="split"])    .ag-topnav__search,
  .ag-main:has(.ag-workarea[data-view="browser-only"]) .ag-topnav__search {
    display: none;
  }
}

/* ============ TOPNAV WATCH BUTTON ============ */
.ag-watch-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--bn-s-2);
  padding: 7px 12px 7px 10px;
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-pill);
  color: var(--bn-ink-secondary);
  font-family: var(--bn-font-sans);
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  cursor: pointer;
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    border-color var(--bn-dur-fast) var(--bn-ease),
    color var(--bn-dur-fast) var(--bn-ease),
    transform var(--bn-dur-fast) var(--bn-ease);
}
/* Class display: inline-flex overrides the UA `[hidden] { display: none }`
   rule unless we re-assert it. Without this the Watch button stays visible
   (showing both eye icons) even when the workspace lacks vnc_url. */
.ag-watch-btn[hidden] { display: none !important; }
.ag-watch-btn:hover {
  background: var(--bn-bg-surface-2);
  border-color: var(--bn-border);
  color: var(--bn-ink);
}
.ag-watch-btn:active { transform: translateY(0.5px); }
.ag-watch-btn[aria-pressed="true"] {
  background: var(--bn-accent-soft);
  border-color: rgba(233, 75, 44, 0.28);
  color: var(--bn-accent-strong);
}
[data-theme="dark"] .ag-watch-btn[aria-pressed="true"] {
  color: var(--bn-accent);
}
.ag-watch-btn iconify-icon { width: 14px; height: 14px; color: currentColor; }
/* Iconify web component overrides the UA `[hidden]` rule on some renders;
   force display:none so we don't show both eye + eye-off icons at once. */
.ag-watch-btn iconify-icon[hidden] { display: none !important; }
.ag-watch-btn kbd {
  font-family: var(--bn-font-mono);
  font-size: 10px;
  padding: 1px 5px;
  margin-left: 2px;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border-soft);
  border-radius: 4px;
  color: var(--bn-ink-muted);
}
.ag-watch-btn:focus-visible {
  outline: 2px solid var(--bn-accent);
  outline-offset: 2px;
}

/* ============ BROWSER PANEL ============ */
.ag-bp {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  width: 100%;
  background: var(--bn-bg-surface-1);
  position: relative;
  grid-column: 2;       /* always in second track (incl. browser-only when chat is hidden) */
  animation: ag-bp-slide-in 240ms cubic-bezier(0.16, 1, 0.3, 1);
}
.ag-bp[hidden] { display: none; }
@keyframes ag-bp-slide-in {
  from { opacity: 0; transform: translateX(12px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* When browser-only, take all space and drop slide-in */
.ag-workarea[data-view="browser-only"] .ag-bp { animation: none; }

/* Head — glass effect matching topnav */
.ag-bp__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bn-s-3);
  padding: 10px 14px;
  border-bottom: 1px solid var(--bn-border-soft);
  background: rgba(241, 236, 226, 0.78);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  min-height: 48px;
  flex-shrink: 0;
}
[data-theme="dark"] .ag-bp__head {
  background: rgba(20, 18, 16, 0.72);
}
.ag-bp__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--bn-text-sm);
  color: var(--bn-ink-secondary);
  min-width: 0;
  flex: 1;
}
.ag-bp__status-text {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
}
.ag-bp__label {
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
  white-space: nowrap;
}
.ag-bp__slug {
  font-family: var(--bn-font-mono);
  font-size: 11px;
  color: var(--bn-ink-muted);
  background: var(--bn-bg-page);
  padding: 2px 7px;
  border-radius: var(--bn-r-sm);
  border: 1px solid var(--bn-border-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}
.ag-bp__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bn-ink-muted);
  flex-shrink: 0;
  box-shadow: 0 0 0 2px transparent;
  transition: background var(--bn-dur-fast) var(--bn-ease), box-shadow var(--bn-dur) var(--bn-ease);
}
.ag-bp__status[data-state="idle"]         .ag-bp__dot { background: var(--bn-ink-muted); }
.ag-bp__status[data-state="connecting"]   .ag-bp__dot { background: var(--bn-warning); animation: ag-bp-blink 1.2s ease-in-out infinite; }
.ag-bp__status[data-state="live"]         .ag-bp__dot {
  background: var(--bn-success);
  box-shadow: 0 0 0 3px rgba(58, 96, 72, 0.18);
  animation: ag-bp-pulse 1.8s ease-in-out infinite;
}
.ag-bp__status[data-state="disconnected"] .ag-bp__dot { background: var(--bn-danger); }
.ag-bp__status[data-state="error"]        .ag-bp__dot { background: var(--bn-danger); }
@keyframes ag-bp-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(58, 96, 72, 0.18); }
  50%      { box-shadow: 0 0 0 5px rgba(58, 96, 72, 0.08); }
}
@keyframes ag-bp-blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

.ag-bp__actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.ag-bp__action {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink-secondary);
  cursor: pointer;
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    border-color var(--bn-dur-fast) var(--bn-ease),
    color var(--bn-dur-fast) var(--bn-ease);
}
.ag-bp__action:hover {
  background: var(--bn-bg-surface-2);
  border-color: var(--bn-border-soft);
  color: var(--bn-ink);
}
.ag-bp__action:active { transform: scale(0.96); }
.ag-bp__action iconify-icon { width: 14px; height: 14px; color: currentColor; }
.ag-bp__action:focus-visible {
  outline: 2px solid var(--bn-accent);
  outline-offset: 1px;
}

/* Viewport — iframe container */
.ag-bp__viewport {
  flex: 1;
  position: relative;
  min-height: 0;
  background: #0e0d0b;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
[data-theme="dark"] .ag-bp__viewport { background: #050505; }

.ag-bp__frame {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  display: block;
}
.ag-bp__frame[hidden] { display: none; }

/* Skeleton — connecting state */
.ag-bp__skeleton,
.ag-bp__empty,
.ag-bp__error {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 32px 24px;
  text-align: center;
  color: var(--bn-ink-inverse);
  z-index: 1;
}
.ag-bp__skeleton[hidden],
.ag-bp__empty[hidden],
.ag-bp__error[hidden] { display: none; }

.ag-bp__skeleton-text {
  font-size: var(--bn-text-sm);
  color: rgba(248, 246, 242, 0.85);
  margin: 4px 0 0;
}
.ag-bp__skeleton-hint {
  font-size: var(--bn-text-xs);
  color: rgba(248, 246, 242, 0.50);
  margin: 0;
}
.ag-bp__spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid rgba(248, 246, 242, 0.16);
  border-top-color: var(--bn-accent);
  animation: ag-bp-spin 0.8s linear infinite;
}
@keyframes ag-bp-spin {
  to { transform: rotate(360deg); }
}

.ag-bp__empty iconify-icon,
.ag-bp__error iconify-icon {
  width: 32px;
  height: 32px;
  color: rgba(248, 246, 242, 0.55);
  margin-bottom: 6px;
}
.ag-bp__empty h3,
.ag-bp__error h3 {
  font-family: var(--bn-font-display);
  font-size: var(--bn-text-lg);
  font-weight: var(--bn-fw-semibold);
  color: rgba(248, 246, 242, 0.95);
  margin: 0;
  letter-spacing: var(--bn-ls-tight);
}
.ag-bp__empty p,
.ag-bp__error p {
  font-size: var(--bn-text-sm);
  color: rgba(248, 246, 242, 0.65);
  margin: 0 0 8px;
  max-width: 340px;
  line-height: var(--bn-lh-relaxed);
}

/* Footer hint */
.ag-bp__foot {
  padding: 8px 14px;
  border-top: 1px solid var(--bn-border-soft);
  background: var(--bn-bg-surface-1);
  flex-shrink: 0;
}
.ag-bp__hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--bn-ink-muted);
}
.ag-bp__hint iconify-icon { width: 12px; height: 12px; color: var(--bn-ink-muted); }
.ag-bp__hint a {
  color: var(--bn-accent-strong);
  text-decoration: none;
  font-weight: var(--bn-fw-medium);
}
.ag-bp__hint a:hover { text-decoration: underline; }
[data-theme="dark"] .ag-bp__hint a { color: var(--bn-accent); }

/* Body lock when fullscreen */
body.ag-bp-fullscreen .ag-bp,
.ag-bp:fullscreen,
.ag-bp:-webkit-full-screen {
  background: #0e0d0b;
}
.ag-bp:fullscreen .ag-bp__viewport,
.ag-bp:-webkit-full-screen .ag-bp__viewport { height: 100%; }

/* ============ MOBILE — bottom drawer instead of split ============ */
@media (max-width: 768px) {
  /* On mobile, split view becomes a slide-up drawer overlay */
  .ag-workarea[data-view="split"] {
    grid-template-columns: 1fr;
  }
  .ag-workarea[data-view="split"] .ag-bp,
  .ag-workarea[data-view="browser-only"] .ag-bp {
    position: fixed;
    inset: auto 0 0 0;
    height: 78vh;
    z-index: 90;
    border-left: none;
    border-top: 1px solid var(--bn-border);
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -18px 38px rgba(26, 24, 21, 0.18);
    animation: ag-bp-drawer-up 260ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  .ag-workarea[data-view="browser-only"] .ag-workarea__chat {
    display: flex; /* on mobile, keep chat behind drawer */
  }
  @keyframes ag-bp-drawer-up {
    from { transform: translateY(110%); }
    to   { transform: translateY(0); }
  }
  /* Backdrop overlay when drawer open */
  body.ag-bp-mobile-open::after {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(26, 24, 21, 0.42);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 89;
    pointer-events: none;
    animation: bn-fade-in 200ms var(--bn-ease);
  }
  /* Watch button stays in topnav but smaller on mobile */
  .ag-watch-btn kbd { display: none; }
  .ag-watch-btn { padding: 7px 10px 7px 9px; font-size: 12px; }
  .ag-watch-btn span[data-watch-label] { display: none; }
}

/* Small screens (<540px): drawer takes near-full height */
@media (max-width: 540px) {
  .ag-workarea[data-view="split"] .ag-bp,
  .ag-workarea[data-view="browser-only"] .ag-bp {
    height: 86vh;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .ag-bp { animation: none; }
  .ag-bp__dot { animation: none !important; }
  .ag-bp__spinner { animation: none; border-top-color: var(--bn-ink-muted); }
  .ag-workarea[data-view="split"] .ag-bp,
  .ag-workarea[data-view="browser-only"] .ag-bp { animation: none; }
}

/* =============================================================
   CLAUDE OAUTH BANNER + MODAL (chat-only client login flow)
   ============================================================= */
.ag-claude-banner {
  display: flex;
  align-items: center;
  gap: var(--bn-s-4);
  padding: 14px var(--bn-s-7) 14px var(--bn-s-7);
  background: linear-gradient(90deg, var(--bn-accent-soft) 0%, rgba(233, 75, 44, 0.04) 100%);
  border-bottom: 1px solid var(--bn-accent-soft);
  position: relative;
  animation: ag-banner-slide-in var(--bn-dur) var(--bn-ease);
}
.ag-claude-banner[hidden] { display: none !important; }
.ag-claude-banner__icon {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--bn-accent);
  color: #fff;
  border-radius: var(--bn-r-md);
  flex-shrink: 0;
  box-shadow: 0 1px 0 rgba(255,255,255,0.4) inset, 0 4px 12px var(--bn-accent-glow);
}
.ag-claude-banner__icon iconify-icon { font-size: 18px; }
.ag-claude-banner__body { flex: 1; min-width: 0; }
.ag-claude-banner__title {
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink);
  letter-spacing: var(--bn-ls-tight);
}
.ag-claude-banner__sub {
  font-size: var(--bn-text-sm);
  color: var(--bn-ink-secondary);
  margin-top: 2px;
}
.ag-claude-banner__actions {
  display: flex; align-items: center; gap: var(--bn-s-2);
  flex-shrink: 0;
}
.ag-claude-banner__close {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink-muted);
  width: 28px; height: 28px;
  display: grid; place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-claude-banner__close:hover {
  background: rgba(26,24,21,0.06);
  color: var(--bn-ink);
}
@keyframes ag-banner-slide-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (max-width: 720px) {
  .ag-claude-banner {
    flex-wrap: wrap;
    padding: 12px var(--bn-s-4);
    gap: var(--bn-s-2);
  }
  .ag-claude-banner__actions { width: 100%; }
  .ag-claude-banner__actions .bn-btn { flex: 1; }
  .ag-claude-banner__close {
    position: absolute;
    top: 8px; right: 8px;
  }
}

/* ============ CLAUDE OAUTH MODAL ============ */
.ag-claude-modal {
  width: min(540px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-2xl);
  padding: var(--bn-s-7);
  box-shadow: var(--bn-shadow-xl);
  animation: bn-modal-in var(--bn-dur) var(--bn-ease-spring);
}
.ag-claude-modal__head {
  display: flex;
  align-items: flex-start;
  gap: var(--bn-s-3);
  margin-bottom: var(--bn-s-5);
}
.ag-claude-modal__icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--bn-accent);
  color: #fff;
  border-radius: var(--bn-r-md);
  flex-shrink: 0;
  box-shadow: 0 1px 0 rgba(255,255,255,0.4) inset, 0 6px 16px var(--bn-accent-glow);
}
.ag-claude-modal__icon iconify-icon { font-size: 22px; }
.ag-claude-modal__title {
  font-family: var(--bn-font-display);
  font-size: var(--bn-text-xl);
  font-weight: var(--bn-fw-semibold);
  line-height: var(--bn-lh-snug);
  letter-spacing: var(--bn-ls-tight);
  color: var(--bn-ink);
}
.ag-claude-modal__sub {
  font-size: var(--bn-text-sm);
  color: var(--bn-ink-secondary);
  margin-top: 4px;
}
.ag-claude-modal__close {
  margin-left: auto;
  background: transparent;
  border: none;
  color: var(--bn-ink-muted);
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: var(--bn-r-sm);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), color var(--bn-dur-fast) var(--bn-ease);
}
.ag-claude-modal__close:hover { background: rgba(26,24,21,0.06); color: var(--bn-ink); }

.ag-claude-step {
  display: flex;
  gap: var(--bn-s-3);
  padding: var(--bn-s-4);
  background: var(--bn-bg-surface-1);
  border: 1px solid var(--bn-border-soft);
  border-radius: var(--bn-r-lg);
  margin-bottom: var(--bn-s-3);
  transition: background var(--bn-dur) var(--bn-ease), border-color var(--bn-dur) var(--bn-ease);
}
.ag-claude-step--done {
  background: rgba(58, 96, 72, 0.06);
  border-color: rgba(58, 96, 72, 0.18);
}
.ag-claude-step--active {
  border-color: var(--bn-accent);
  box-shadow: 0 0 0 3px var(--bn-accent-soft);
}
.ag-claude-step__num {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  flex-shrink: 0;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: 50%;
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-semibold);
  color: var(--bn-ink);
}
.ag-claude-step--done .ag-claude-step__num {
  background: var(--bn-success);
  color: #fff;
  border-color: var(--bn-success);
}
.ag-claude-step--active .ag-claude-step__num {
  background: var(--bn-accent);
  color: #fff;
  border-color: var(--bn-accent);
}
.ag-claude-step__body { flex: 1; min-width: 0; }
.ag-claude-step__title {
  font-size: var(--bn-text-md);
  font-weight: var(--bn-fw-medium);
  color: var(--bn-ink);
  margin-bottom: 4px;
}
.ag-claude-step__hint {
  font-size: var(--bn-text-sm);
  color: var(--bn-ink-secondary);
  margin-bottom: var(--bn-s-3);
}
.ag-claude-step__link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  background: var(--bn-ink);
  color: var(--bn-ink-inverse);
  border: 1px solid var(--bn-ink);
  border-radius: var(--bn-r-md);
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  cursor: pointer;
  transition: background var(--bn-dur-fast) var(--bn-ease), transform var(--bn-dur-fast) var(--bn-ease);
}
.ag-claude-step__link:hover { background: #000; transform: translateY(-1px); }
.ag-claude-step__link iconify-icon { font-size: 14px; }
.ag-claude-step__input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-md);
  color: var(--bn-ink);
  font-family: var(--bn-font-mono);
  font-size: var(--bn-text-sm);
  outline: none;
  transition: border-color var(--bn-dur-fast) var(--bn-ease), box-shadow var(--bn-dur-fast) var(--bn-ease);
}
.ag-claude-step__input:focus {
  border-color: var(--bn-accent);
  box-shadow: 0 0 0 3px var(--bn-accent-soft);
}
.ag-claude-step__input::placeholder { color: var(--bn-ink-faint); }
.ag-claude-step__row {
  display: flex; gap: var(--bn-s-2); margin-top: var(--bn-s-2);
  align-items: center;
}
.ag-claude-step__submit {
  flex-shrink: 0;
}

.ag-claude-status {
  margin-top: var(--bn-s-4);
  padding: var(--bn-s-3) var(--bn-s-4);
  border-radius: var(--bn-r-md);
  display: flex;
  align-items: center;
  gap: var(--bn-s-2);
  font-size: var(--bn-text-sm);
  animation: bn-fade-in var(--bn-dur) var(--bn-ease);
}
.ag-claude-status--info {
  background: rgba(58, 91, 142, 0.08);
  color: var(--bn-info);
  border: 1px solid rgba(58, 91, 142, 0.18);
}
.ag-claude-status--success {
  background: rgba(58, 96, 72, 0.10);
  color: var(--bn-success);
  border: 1px solid rgba(58, 96, 72, 0.22);
}
.ag-claude-status--error {
  background: rgba(176, 41, 27, 0.10);
  color: var(--bn-danger);
  border: 1px solid rgba(176, 41, 27, 0.22);
}
.ag-claude-status__spinner {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: ag-claude-spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes ag-claude-spin { to { transform: rotate(360deg); } }

.ag-claude-modal__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--bn-s-5);
  padding-top: var(--bn-s-4);
  border-top: 1px solid var(--bn-border-soft);
  font-size: var(--bn-text-xs);
  color: var(--bn-ink-muted);
}
.ag-claude-modal__footer a {
  color: var(--bn-ink-secondary);
  border-bottom: 1px dashed var(--bn-border);
}
.ag-claude-modal__footer a:hover { color: var(--bn-accent); border-bottom-color: var(--bn-accent); }

/* Dark theme overrides for banner + modal */
[data-theme="dark"] .ag-claude-banner {
  background: linear-gradient(90deg, rgba(233, 75, 44, 0.14) 0%, rgba(233, 75, 44, 0.04) 100%);
  border-bottom-color: rgba(233, 75, 44, 0.22);
}
[data-theme="dark"] .ag-claude-modal {
  background: var(--bn-bg-page);
  border-color: var(--bn-border);
}
[data-theme="dark"] .ag-claude-step {
  background: var(--bn-bg-surface-1);
}
[data-theme="dark"] .ag-claude-step--done {
  background: rgba(58, 96, 72, 0.12);
}
[data-theme="dark"] .ag-claude-step__input {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink);
}
[data-theme="dark"] .ag-claude-step__link {
  background: var(--bn-bg-surface-3, #fff);
  color: var(--bn-bg-page);
  border-color: var(--bn-bg-surface-3, #fff);
}
[data-theme="dark"] .ag-claude-step__link:hover { background: #fff; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .ag-claude-banner,
  .ag-claude-modal,
  .ag-claude-status { animation: none !important; }
  .ag-claude-status__spinner { animation: none !important; border-top-color: currentColor; }
}

/* =============================================================
   AGENT TAB BAR (Wave 12+, multi-tab chat)
   Linear/Raycast/Higgsfield-grade tab strip above chat workarea.
   Tokens-only, no hardcoded hex. Respects prefers-reduced-motion.
   ============================================================= */
.ag-tabbar {
  display: flex;
  align-items: center;
  gap: var(--bn-s-2);
  padding: var(--bn-s-2) var(--bn-s-7);
  background: var(--bn-bg-page);
  border-bottom: 1px solid var(--bn-border-soft);
  position: sticky;
  top: 57px; /* sits flush under .ag-topnav (which is ~57px tall) */
  z-index: calc(var(--bn-z-sticky) - 1);
  min-height: 44px;
}
.ag-tabbar__scroll {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.ag-tabbar__scroll::-webkit-scrollbar { display: none; }
.ag-tabbar__list {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
  position: relative; /* anchor for .ag-tab-indicator */
}

/* Shared sliding active indicator (Linear/Raycast pattern).
   Single 2px underline that animates translateX/scaleX between tabs,
   instead of per-tab ::after underlines that "teleport". JS sets the
   base width = 1px, then transforms scaleX = activeTab.offsetWidth. */
.ag-tab-indicator {
  position: absolute;
  bottom: -1px;            /* sits flush with tabbar's bottom border */
  left: 0;
  width: 1px;              /* unit width — scaleX is the real width */
  height: 2px;
  background: var(--bn-accent);
  border-radius: 2px;
  transform: translateX(0) scaleX(0);
  transform-origin: left center;
  transition:
    transform 200ms cubic-bezier(0.16, 1, 0.3, 1),
    opacity   160ms ease-out;
  pointer-events: none;
  opacity: 1;
  will-change: transform;
}
/* First-paint guard: JS adds this class for one frame so the initial
   placement doesn't slide in from translateX(0). */
.ag-tab-indicator.is-instant { transition: none !important; }
/* When there are no tabs measured yet, hide entirely. */
.ag-tab-indicator.is-hidden { opacity: 0; }

/* Single tab */
.ag-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--bn-r-md);
  color: var(--bn-ink-secondary);
  font-family: var(--bn-font-sans);
  font-size: var(--bn-text-sm);
  font-weight: var(--bn-fw-medium);
  letter-spacing: var(--bn-ls-tight);
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    color      var(--bn-dur-fast) var(--bn-ease),
    border-color var(--bn-dur-fast) var(--bn-ease);
  max-width: 200px;
  min-width: 0;
}
.ag-tab:hover {
  background: var(--bn-bg-surface-1);
  color: var(--bn-ink);
}
.ag-tab.is-active {
  background: var(--bn-bg-surface-2);
  color: var(--bn-ink);
  border-color: var(--bn-border-soft);
}
/* The 2px active underline is rendered by the SHARED .ag-tab-indicator
   element, not a per-tab ::after. This eliminates "teleporting" between
   tabs and matches Linear/Raycast convention. */

/* NTH-C: new tab slides in from right, 180ms expo-out, opacity 0 -> 1. */
@keyframes ag-tab-enter {
  from { transform: translateX(8px); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}
.ag-tab.ag-tab--enter {
  animation: ag-tab-enter 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* NTH-B: close-tab collapse animation (90ms). JS sets this class then
   splices the agent from state after the animation ends. */
.ag-tab.ag-tab--leaving {
  transition:
    opacity   90ms ease-out,
    transform 90ms ease-out;
  transform: translateY(-2px) scale(0.95);
  opacity: 0;
  pointer-events: none;
}
.ag-tab__label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}
.ag-tab__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bn-ink-muted);
  opacity: 0;
  transition: opacity var(--bn-dur-fast) var(--bn-ease);
  flex-shrink: 0;
}
.ag-tab[data-status="streaming"] .ag-tab__dot {
  background: var(--bn-accent);
  opacity: 1;
  animation: ag-tab-pulse 1.4s ease-in-out infinite;
}
.ag-tab[data-status="error"] .ag-tab__dot {
  background: var(--bn-danger);
  opacity: 1;
  animation: none;
}
.ag-tab[data-status="done"] .ag-tab__dot {
  background: var(--bn-success);
  opacity: 0.85;
  animation: none;
}
@keyframes ag-tab-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--bn-accent-glow); opacity: 0.85; }
  50%      { box-shadow: 0 0 0 4px transparent;          opacity: 1; }
}

/* Close X — visible on hover OR when active. Disabled on the last tab.
   Touch target: 20x20 visual + 4px padding-equivalent via margin = ~28x28
   effective hit area, meeting WCAG 2.5.5 (24x24 minimum) with restraint. */
.ag-tab__close {
  display: inline-grid;
  place-items: center;
  width: 20px; height: 20px;
  margin-left: 2px;
  border: none;
  background: transparent;
  color: var(--bn-ink-muted);
  border-radius: var(--bn-r-xs);
  cursor: pointer;
  opacity: 0;
  position: relative;
  transition:
    opacity   var(--bn-dur-fast) var(--bn-ease),
    background var(--bn-dur-fast) var(--bn-ease),
    color     var(--bn-dur-fast) var(--bn-ease);
}
/* Expand effective hit area to 28x28 without visually growing the icon. */
.ag-tab__close::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: var(--bn-r-sm);
}
.ag-tab__close iconify-icon { font-size: 12px; }
.ag-tab:hover .ag-tab__close,
.ag-tab.is-active .ag-tab__close,
.ag-tab__close:focus-visible { opacity: 1; }
.ag-tab__close:hover {
  background: var(--bn-bg-page);
  color: var(--bn-ink);
}
.ag-tab__close[disabled] {
  opacity: 0 !important;
  pointer-events: none;
}

/* Inline rename input — replaces the label during double-click edit */
.ag-tab__rename {
  font: inherit;
  color: inherit;
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border);
  border-radius: var(--bn-r-xs);
  padding: 1px 6px;
  min-width: 60px;
  max-width: 160px;
  outline: none;
}
.ag-tab__rename:focus { border-color: var(--bn-accent); }

/* + New agent button */
.ag-tabbar__new {
  display: inline-grid;
  place-items: center;
  width: 28px; height: 28px;
  margin-left: 2px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--bn-r-sm);
  color: var(--bn-ink-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background var(--bn-dur-fast) var(--bn-ease),
    color      var(--bn-dur-fast) var(--bn-ease),
    border-color var(--bn-dur-fast) var(--bn-ease);
}
.ag-tabbar__new iconify-icon { font-size: 14px; }
.ag-tabbar__new:hover {
  background: var(--bn-bg-surface-1);
  color: var(--bn-ink);
  border-color: var(--bn-border-soft);
}
.ag-tabbar__new[hidden] { display: none !important; }

/* Keyboard hint tooltip on tab hover */
.ag-tab__kbd {
  display: none;
  margin-left: 4px;
  padding: 1px 4px;
  font-family: var(--bn-font-mono);
  font-size: 10px;
  color: var(--bn-ink-muted);
  background: var(--bn-bg-page);
  border: 1px solid var(--bn-border-soft);
  border-radius: 3px;
}
.ag-tab:hover .ag-tab__kbd { display: inline-flex; align-items: center; }
@media (max-width: 720px) { .ag-tab__kbd { display: none !important; } }

/* Empty state (no agents — rare, only when localStorage corrupted) */
.ag-tabbar__empty {
  flex: 1;
  text-align: center;
  font-size: var(--bn-text-sm);
  color: var(--bn-ink-muted);
  padding: 6px 12px;
}

/* ---------- Mobile dropdown variant (< 720px) ---------- */
.ag-tabbar__mobile { display: none; }
@media (max-width: 720px) {
  .ag-tabbar { padding: var(--bn-s-2) var(--bn-s-4); top: 53px; }
  .ag-tabbar__scroll { display: none; }
  .ag-tabbar__mobile {
    display: flex;
    align-items: center;
    gap: var(--bn-s-2);
    width: 100%;
    position: relative;
  }
  .ag-tabbar__mobile-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    background: var(--bn-bg-surface-1);
    border: 1px solid var(--bn-border);
    border-radius: var(--bn-r-md);
    color: var(--bn-ink);
    font-size: var(--bn-text-sm);
    font-weight: var(--bn-fw-medium);
    cursor: pointer;
    flex: 1;
    justify-content: space-between;
    min-width: 0;
  }
  .ag-tabbar__mobile-trigger iconify-icon { font-size: 14px; color: var(--bn-ink-muted); }
  .ag-tabbar__mobile-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--bn-accent);
    animation: ag-tab-pulse 1.4s ease-in-out infinite;
    margin-right: 6px;
    flex-shrink: 0;
  }
  .ag-tabbar__mobile-dot[hidden] { display: none !important; }
  .ag-tabbar__mobile-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--bn-bg-page);
    border: 1px solid var(--bn-border);
    border-radius: var(--bn-r-md);
    box-shadow: var(--bn-shadow-lg);
    padding: 4px;
    z-index: var(--bn-z-sticky);
    max-height: 280px;
    overflow-y: auto;
  }
  .ag-tabbar__mobile-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 10px;
    background: transparent;
    border: none;
    border-radius: var(--bn-r-sm);
    color: var(--bn-ink);
    font-size: var(--bn-text-sm);
    text-align: left;
    cursor: pointer;
  }
  .ag-tabbar__mobile-item:hover { background: var(--bn-bg-surface-1); }
  .ag-tabbar__mobile-item.is-active { background: var(--bn-bg-surface-2); font-weight: var(--bn-fw-medium); }
  .ag-tabbar__mobile-item-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--bn-ink-muted);
    flex-shrink: 0;
    opacity: 0.4;
  }
  .ag-tabbar__mobile-item[data-status="streaming"] .ag-tabbar__mobile-item-dot {
    background: var(--bn-accent);
    opacity: 1;
    animation: ag-tab-pulse 1.4s ease-in-out infinite;
  }
  .ag-tabbar__mobile-item[data-status="error"] .ag-tabbar__mobile-item-dot { background: var(--bn-danger); opacity: 1; }
  .ag-tabbar__mobile-item[data-status="done"] .ag-tabbar__mobile-item-dot { background: var(--bn-success); opacity: 1; }
  .ag-tabbar__mobile-item-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .ag-tabbar__mobile-item-close {
    /* WCAG 2.5.5 minimum touch target (24x24) for mobile. */
    width: 24px; height: 24px;
    display: grid; place-items: center;
    border: none; background: transparent;
    color: var(--bn-ink-muted);
    border-radius: var(--bn-r-xs);
    cursor: pointer;
    flex-shrink: 0;
  }
  .ag-tabbar__mobile-item-close:hover { background: var(--bn-bg-surface-2); color: var(--bn-ink); }
  .ag-tabbar__mobile-item-close[disabled] { opacity: 0; pointer-events: none; }
  .ag-tabbar__mobile .ag-tabbar__new {
    width: 36px; height: 36px;
    background: var(--bn-bg-surface-1);
    border-color: var(--bn-border);
  }
}

/* Dark theme overrides */
[data-theme="dark"] .ag-tabbar { background: var(--bn-bg-page); border-bottom-color: var(--bn-border); }
[data-theme="dark"] .ag-tab.is-active { background: var(--bn-bg-surface-2); border-color: var(--bn-border); }
[data-theme="dark"] .ag-tab__close:hover { background: var(--bn-bg-surface-1); }
[data-theme="dark"] .ag-tab__rename { background: var(--bn-bg-surface-2); }
[data-theme="dark"] .ag-tabbar__mobile-trigger { background: var(--bn-bg-surface-2); }
[data-theme="dark"] .ag-tabbar__mobile-menu { background: var(--bn-bg-surface-1); border-color: var(--bn-border); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .ag-tab__dot,
  .ag-tabbar__mobile-dot,
  .ag-tabbar__mobile-item[data-status="streaming"] .ag-tabbar__mobile-item-dot { animation: none !important; }
  .ag-tab,
  .ag-tab__close,
  .ag-tabbar__new { transition: none !important; }
  .ag-tab-indicator { transition: none !important; }
  .ag-tab.ag-tab--enter,
  .ag-tab.ag-tab--leaving { animation: none !important; transition: none !important; }
}