/* Design tokens follow docs/UI-STANDARDS.md (SN-Dev design intelligence). */
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("fonts/plus-jakarta-sans-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-sidebar: #f1f5f9;
  --color-hover: #e8edf3;
  --color-foreground: #0f172a;
  --color-muted-text: #475569;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-accent: #0070ad;
  --color-accent-strong: #005a8c;
  --color-accent-soft: #e6f1f8;
  --color-on-accent: #ffffff;
  --color-danger: #b3261e;
  --color-danger-soft: #fdf0ef;
  --color-success: #166534;
  --color-success-soft: #e8f5e9;
  --color-warning: #8a5300;
  --color-warning-soft: #fff4e0;
  --color-code-bg: #0f172a;
  --color-code-fg: #e2e8f0;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-1: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-2: 0 8px 24px rgba(15, 23, 42, 0.14);
  --shadow-3: 0 20px 60px rgba(15, 23, 42, 0.25);

  --z-menu: 20;
  --z-drawer: 40;

  --font: "Plus Jakarta Sans", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur: 180ms;

  --sidebar-w: 272px;
  --outputs-w: 340px;
  --thread-w: 760px;
  --target: 32px;
}
@media (pointer: coarse) {
  :root { --target: 44px; }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  display: flex;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
button, select, [role="option"], summary, label.team-toggle, label.switch { cursor: pointer; touch-action: manipulation; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: var(--space-2); background: var(--color-surface); padding: var(--space-2) var(--space-3); z-index: 100; border-radius: var(--radius-sm); }
.skip-link:focus { left: var(--space-2); }
.muted { color: var(--color-muted-text); }
.small { font-size: 13px; }
.icon { width: 18px; height: 18px; flex-shrink: 0; vertical-align: middle; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--target); padding: 6px 14px;
  border: 1px solid var(--color-border-strong); background: var(--color-surface); color: var(--color-foreground);
  border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; line-height: 1.2;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.btn:hover { background: var(--color-hover); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-on-accent); }
.btn-primary:hover { background: var(--color-accent-strong); border-color: var(--color-accent-strong); }
.btn-danger { background: var(--color-danger); border-color: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #8f1e18; }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--color-hover); }
.btn-block { width: 100%; }
.btn-sm { min-height: 28px; padding: 4px 10px; font-size: 13px; }
@media (pointer: coarse) { .btn-sm { min-height: 40px; } }
.icon-btn {
  display: inline-grid; place-items: center; width: var(--target); height: var(--target);
  border: 0; background: transparent; color: var(--color-muted-text); border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.icon-btn:hover { background: var(--color-hover); color: var(--color-foreground); }
.link-btn {
  display: flex; align-items: center; gap: var(--space-2); width: 100%; min-height: var(--target);
  border: 0; background: none; color: var(--color-muted-text); padding: 4px var(--space-2); text-align: left; font-size: 14px; border-radius: var(--radius-sm);
}
.link-btn:hover { color: var(--color-foreground); background: var(--color-hover); }
.count { display: inline-block; min-width: 20px; padding: 0 6px; border-radius: var(--radius-pill); background: var(--color-accent-soft); color: var(--color-accent-strong); font-size: 12px; text-align: center; font-variant-numeric: tabular-nums; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: var(--color-sidebar); border-right: 1px solid var(--color-border);
  display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-4) var(--space-3);
}
.brand { display: flex; align-items: center; gap: var(--space-3); padding: 0 var(--space-1) var(--space-1); }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px; background: var(--color-accent);
  color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 14px; letter-spacing: 0.5px;
}
.brand-name { font-weight: 700; font-size: 15px; line-height: 1.3; }
.brand-sub { font-size: 12px; color: var(--color-muted-text); }
.search input {
  width: 100%; min-height: var(--target); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  padding: 6px 10px; background: var(--color-surface);
}
.conversation-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
.conv-group { font-size: 12px; color: var(--color-muted-text); padding: var(--space-3) var(--space-2) var(--space-1); font-weight: 700; }
.conv-item { display: flex; align-items: center; border-radius: var(--radius-sm); }
.conv-item .conv-open {
  flex: 1; min-width: 0; min-height: var(--target); text-align: left; border: 0; background: none;
  padding: 6px var(--space-2); border-radius: var(--radius-sm); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 14px;
}
.conv-item:hover, .conv-item.active { background: var(--color-hover); }
.conv-item.active .conv-open { font-weight: 600; }
.conv-actions { display: flex; opacity: 0; transition: opacity var(--dur) var(--ease); }
.conv-item:hover .conv-actions, .conv-item.active .conv-actions, .conv-item:focus-within .conv-actions { opacity: 1; }
@media (pointer: coarse) { .conv-actions { opacity: 1; } }
.conv-actions .icon-btn { width: 28px; height: 28px; }
.conv-actions .icon { width: 15px; height: 15px; }
.sidebar-footer { display: flex; flex-direction: column; gap: 2px; border-top: 1px solid var(--color-border); padding-top: var(--space-2); }
.user-chip { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-2) 0; }
.user-chip .avatar { background: #475569; }
.user-chip .who { min-width: 0; flex: 1; }
.user-chip .who strong { display: block; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-chip .who span { font-size: 12px; color: var(--color-muted-text); }

/* Main */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2) var(--space-5);
  border-bottom: 1px solid var(--color-border); background: var(--color-background); min-height: 56px;
}
.conversation-title { font-size: 16px; font-weight: 700; margin: 0; flex: 1; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.mode-badge { font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: var(--radius-pill); border: 1px solid; white-space: nowrap; }
.mode-badge.demo { background: var(--color-warning-soft); color: var(--color-warning); border-color: #f0d2a0; }
.mode-badge.live { background: var(--color-success-soft); color: var(--color-success); border-color: #b9dcbb; }
.topbar-controls { display: flex; align-items: center; gap: var(--space-2); }
.control { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--color-muted-text); }
.control select { min-height: var(--target); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: 4px 8px; background: var(--color-surface); color: var(--color-foreground); }
.switch { min-height: var(--target); padding: 0 var(--space-2); border-radius: var(--radius-sm); }
.switch:hover { background: var(--color-hover); }
.switch input, .team-toggle input, .plan-step input { accent-color: var(--color-accent); width: 16px; height: 16px; margin: 0; flex-shrink: 0; }
.control, .switch { white-space: nowrap; }
.only-mobile { display: none; }

.content { flex: 1; display: flex; min-height: 0; }
.thread { flex: 1; overflow-y: auto; padding: var(--space-5) var(--space-5) var(--space-3); }
.thread > * { max-width: var(--thread-w); margin-left: auto; margin-right: auto; }

/* Empty state */
.hero { text-align: center; padding: var(--space-6) 0 var(--space-2); }
.hero h2 { font-size: 28px; font-weight: 700; margin: 0 0 var(--space-2); letter-spacing: -0.3px; line-height: 1.25; }
.hero p { margin: 0; color: var(--color-muted-text); }
.agent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin: var(--space-5) auto; }
.agent-card {
  text-align: left; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface);
  padding: var(--space-4); box-shadow: var(--shadow-1); display: flex; flex-direction: column; gap: var(--space-2);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.agent-card:hover { border-color: var(--color-accent); }
.agent-card[aria-pressed="true"] { border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-accent-soft); }
.agent-card .who { display: flex; gap: var(--space-3); align-items: center; }
.agent-card .name { font-weight: 700; line-height: 1.3; }
.agent-card .role { font-size: 13px; color: var(--color-muted-text); }
.agent-card .good { font-size: 13px; color: var(--color-muted-text); line-height: 1.5; }
.examples { display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-2) auto var(--space-5); }
.examples h3 { font-size: 12px; font-weight: 700; color: var(--color-muted-text); margin: 0 0 2px; text-transform: uppercase; letter-spacing: 0.6px; }
.chip {
  display: flex; align-items: center; gap: var(--space-2); text-align: left; min-height: 40px;
  border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3); font-size: 14px; transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.chip:hover { border-color: var(--color-accent); background: var(--color-accent-soft); }
.chip.showcase { border-color: #9fc7e0; background: var(--color-accent-soft); }
.chip.showcase strong { color: var(--color-accent-strong); }
.chip .icon { color: var(--color-accent); }

/* Avatars */
.avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; color: #fff; font-weight: 700;
  display: grid; place-items: center; font-size: 14px;
}
.avatar.avatar-3d { background: none !important; box-shadow: none; filter: drop-shadow(0 2px 2px rgba(15, 23, 42, 0.22)) drop-shadow(0 4px 6px rgba(15, 23, 42, 0.12)); }
.avatar-3d svg { width: 100%; height: 100%; display: block; overflow: visible; }
.agent-card .avatar-3d { transition: transform var(--dur) var(--ease); }
.agent-card:hover .avatar-3d { transform: translateY(-2px) scale(1.04); }
.avatar.lg { width: 44px; height: 44px; font-size: 16px; border-radius: 12px; }

/* Messages */
.msg { margin-bottom: var(--space-5); }
.msg-user { display: flex; justify-content: flex-end; }
.msg-user .bubble {
  background: var(--color-hover); border-radius: 16px 16px 4px 16px; padding: 10px var(--space-4); max-width: 85%;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.msg-agent { display: flex; gap: var(--space-3); }
.msg-agent .body { flex: 1; min-width: 0; }
.msg-head { display: flex; align-items: baseline; gap: var(--space-2); margin-bottom: 2px; flex-wrap: wrap; }
.msg-head .name { font-weight: 700; }
.msg-head .role { font-size: 13px; color: var(--color-muted-text); }
.routed { font-size: 13px; color: var(--color-muted-text); background: var(--color-accent-soft); border-radius: var(--radius-sm); padding: 6px 10px; margin: var(--space-1) 0 var(--space-2); display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; }
.routed select { font-size: 13px; border: 1px solid var(--color-border-strong); border-radius: 6px; padding: 2px 4px; background: var(--color-surface); }
.msg-actions { display: flex; gap: 2px; margin-top: var(--space-2); flex-wrap: wrap; align-items: center; }
.msg-actions button {
  display: inline-flex; align-items: center; gap: 6px; min-height: var(--target);
  border: 1px solid transparent; background: none; color: var(--color-muted-text); font-size: 13px; font-weight: 500;
  padding: 2px var(--space-2); border-radius: 6px; transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.msg-actions button .icon { width: 16px; height: 16px; }
.msg-actions button:hover { border-color: var(--color-border); color: var(--color-foreground); background: var(--color-surface); }
.msg-actions button.active { color: var(--color-accent-strong); background: var(--color-accent-soft); }
.meta { font-size: 12px; color: var(--color-muted-text); margin-top: var(--space-1); }
.meta summary { display: inline-flex; align-items: center; gap: 4px; min-height: 28px; }
.meta dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px var(--space-3); margin: 6px 0 0; }
.meta dt { font-weight: 700; }
.meta dd { margin: 0; font-variant-numeric: tabular-nums; }
.sources { margin-top: 10px; font-size: 13px; }
.sources ol { margin: 4px 0 0; padding-left: 20px; }
.sources li { margin: 2px 0; }
.src-tag { display: inline-block; margin-left: 4px; padding: 0 6px; border: 1px solid var(--color-border-strong); border-radius: 4px; font-size: 12px; line-height: 18px; color: var(--color-muted-text); background: var(--color-surface); white-space: nowrap; }
.src-tag.src-docs { border-color: var(--color-accent); color: var(--color-accent-strong); background: var(--color-accent-soft); }
.src-tag.src-community { border-color: #f0d2a0; color: var(--color-warning); background: var(--color-warning-soft); }
.switch.is-disabled { cursor: not-allowed; }
.switch.is-disabled input, .switch.is-disabled > span:not(.src-off) { opacity: 0.6; }
.src-off { font-size: 12px; color: var(--color-muted-text); }
.error-box { border: 1px solid #f1c6c3; background: var(--color-danger-soft); color: var(--color-danger); border-radius: var(--radius-sm); padding: 10px var(--space-3); }
.notice-box { border: 1px solid #f0d2a0; background: var(--color-warning-soft); color: var(--color-warning); border-radius: var(--radius-sm); padding: 10px var(--space-3); }
.success-box { border: 1px solid #b9dcbb; background: var(--color-success-soft); color: var(--color-success); border-radius: var(--radius-sm); padding: 10px var(--space-3); }
.typing::after { content: ""; display: inline-block; width: 8px; height: 16px; margin-left: 2px; vertical-align: text-bottom; background: var(--color-accent); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Markdown */
.md { overflow-wrap: break-word; }
.md > :first-child { margin-top: 0; }
.md > :last-child { margin-bottom: 0; }
.md h1, .md h2, .md h3, .md h4 { line-height: 1.3; margin: 20px 0 var(--space-2); font-weight: 700; }
.md h1 { font-size: 20px; } .md h2 { font-size: 18px; } .md h3 { font-size: 16px; } .md h4 { font-size: 15px; }
.md p { margin: var(--space-2) 0; }
.md ul, .md ol { padding-left: 22px; margin: var(--space-2) 0; }
.md li { margin: 2px 0; }
.md blockquote { margin: var(--space-2) 0; padding: 6px var(--space-3); border-left: 3px solid var(--color-accent); background: var(--color-accent-soft); border-radius: 0 6px 6px 0; }
.md code { font-family: var(--mono); font-size: 13px; background: var(--color-hover); padding: 1px 5px; border-radius: 4px; }
.md pre { position: relative; background: var(--color-code-bg); color: var(--color-code-fg); border-radius: var(--radius-sm); padding: 36px var(--space-4) var(--space-4); overflow-x: auto; }
.md pre code { background: none; padding: 0; color: inherit; }
.md pre .copy-code { position: absolute; top: 6px; right: 6px; display: inline-flex; align-items: center; gap: 4px; font-size: 12px; background: #1e293b; color: #e2e8f0; border: 0; border-radius: 6px; padding: 4px 8px; min-height: 26px; }
.md pre .copy-code:hover { background: #334155; }
.md .table-wrap { overflow-x: auto; margin: 10px 0; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.md table { border-collapse: collapse; width: 100%; font-size: 13px; background: var(--color-surface); }
.md th, .md td { border-bottom: 1px solid var(--color-border); padding: var(--space-2) 10px; text-align: left; vertical-align: top; overflow-wrap: normal; word-break: normal; min-width: 7em; line-height: 1.5; }
.md td:first-child, .md th:first-child { min-width: 5.5em; }
.md th { background: var(--color-sidebar); font-weight: 700; white-space: nowrap; }
.md tr:last-child td { border-bottom: 0; }
.md hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-4) 0; }
.md a { color: var(--color-accent); text-underline-offset: 2px; }
.md .link-host { font-size: 12px; color: var(--color-muted-text); }

/* Team */
.team { border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); box-shadow: var(--shadow-1); overflow: hidden; }
.team-head { display: flex; align-items: center; gap: 10px; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); background: var(--color-sidebar); flex-wrap: wrap; }
.team-head h2 { margin: 0; font-size: 15px; }
.team-head .avatar { background: #475569; }
.team-head .status { margin-left: auto; font-size: 13px; color: var(--color-muted-text); }
.plan { padding: var(--space-3) var(--space-4); }
.plan p { margin: 0 0 10px; color: var(--color-muted-text); font-size: 14px; }
.plan-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.plan-step { border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.plan-step label { display: flex; align-items: center; gap: 10px; padding: var(--space-2) 10px; min-height: 48px; }
.plan-step.off { opacity: 0.55; }
.plan-step .num { font-size: 12px; color: var(--color-muted-text); width: 18px; text-align: center; }
.plan-step .task { flex: 1; font-size: 14px; }
.plan-step .task strong { display: block; font-size: 14px; }
.plan-actions { display: flex; gap: var(--space-2); align-items: center; margin-top: var(--space-3); flex-wrap: wrap; }
.plan-actions select { min-height: var(--target); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: 4px 8px; background: var(--color-surface); }
.relay { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; font-size: 13px; }
.relay .arrow { color: var(--color-muted-text); }
.step { border-top: 1px solid var(--color-border); }
.step > summary { list-style: none; padding: 10px var(--space-4); display: flex; gap: 10px; align-items: center; min-height: 52px; }
.step > summary::-webkit-details-marker { display: none; }
.step > summary::after { content: ""; width: 8px; height: 8px; margin-left: var(--space-2); border-right: 2px solid var(--color-muted-text); border-bottom: 2px solid var(--color-muted-text); transform: rotate(45deg); transition: transform var(--dur) var(--ease); flex-shrink: 0; }
.step:not([open]) > summary::after { transform: rotate(-45deg); }
.step > summary:hover { background: var(--color-background); }
.step .step-title { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.step .step-title .task { font-size: 13px; color: var(--color-muted-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step .step-state { font-size: 12px; color: var(--color-muted-text); white-space: nowrap; font-variant-numeric: tabular-nums; }
.step .step-body { padding: var(--space-1) var(--space-4) var(--space-4) 58px; }
.verdict { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: var(--radius-pill); border: 1px solid; }
.verdict.approve { color: var(--color-success); border-color: #b9dcbb; background: var(--color-success-soft); }
.verdict.comments { color: var(--color-accent-strong); border-color: #b5d8ea; background: var(--color-accent-soft); }
.verdict.changes { color: var(--color-warning); border-color: #f0d2a0; background: var(--color-warning-soft); }
.verdict.escalate { color: var(--color-danger); border-color: #f1c6c3; background: var(--color-danger-soft); }
.final { border-top: 2px solid var(--color-accent); padding: var(--space-4); background: #fbfdff; }
.final h3 { margin: 0 0 6px; font-size: 12px; color: var(--color-accent-strong); text-transform: uppercase; letter-spacing: 0.6px; }

/* Composer */
.composer { padding: var(--space-2) var(--space-5) var(--space-3); }
.composer-box {
  position: relative; max-width: var(--thread-w); margin: 0 auto; border: 1px solid var(--color-border-strong);
  border-radius: 16px; background: var(--color-surface); box-shadow: var(--shadow-1); padding: 10px var(--space-3) var(--space-2);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.composer-box:focus-within { border-color: var(--color-accent); box-shadow: 0 0 0 4px var(--color-accent-soft); }
.composer-box:has(textarea:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.composer textarea {
  width: 100%; border: 0; resize: none; outline: none; background: transparent; padding: 4px 2px;
  max-height: 220px; min-height: 26px; line-height: 1.5;
}
.composer-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); margin-top: 6px; flex-wrap: wrap; }
.composer-left, .composer-right { display: flex; align-items: center; gap: var(--space-2); }
.composer-left { flex-wrap: wrap; min-width: 0; flex: 1 1 auto; }
.agent-select { min-width: 0; max-width: 100%; }
.agent-select select { max-width: 100%; }
.agent-select select { min-height: var(--target); border: 1px solid var(--color-border-strong); border-radius: var(--radius-pill); padding: 4px 12px; background: var(--color-background); font-weight: 600; font-size: 14px; }
.team-toggle { white-space: nowrap; display: flex; align-items: center; gap: 6px; min-height: var(--target); font-size: 14px; font-weight: 600; padding: 0 12px; border-radius: var(--radius-pill); border: 1px solid var(--color-border-strong); background: var(--color-background); }
.team-toggle:has(input:checked) { border-color: var(--color-accent); background: var(--color-accent-soft); color: var(--color-accent-strong); }
.disclaimer { text-align: center; margin: 6px 0 0; }
.mention-menu {
  position: absolute; bottom: calc(100% + 6px); left: var(--space-3); background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-2); min-width: 260px; padding: 4px; z-index: var(--z-menu);
}
.mention-item { display: flex; gap: 10px; align-items: center; padding: 6px var(--space-2); min-height: 40px; border-radius: 6px; }
.mention-item[aria-selected="true"], .mention-item:hover { background: var(--color-accent-soft); }
.mention-item .avatar { width: 26px; height: 26px; font-size: 12px; }

/* Outputs panel */
.outputs { width: var(--outputs-w); flex-shrink: 0; border-left: 1px solid var(--color-border); background: var(--color-surface); padding: var(--space-4); overflow-y: auto; }
.outputs-head { display: flex; align-items: center; justify-content: space-between; }
.outputs-head h2 { font-size: 16px; margin: 0; }
.outputs-list { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-direction: column; gap: var(--space-2); }
.output-item { border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 10px; display: flex; flex-direction: column; gap: var(--space-2); }
.output-item .top { display: flex; gap: var(--space-2); align-items: center; }
.output-item .avatar { width: 24px; height: 24px; font-size: 11px; }
.output-item .title { font-size: 14px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.output-item .by { font-size: 12px; color: var(--color-muted-text); }
.output-item .actions { display: flex; gap: 6px; }

/* Modals */
.modal { border: 0; border-radius: var(--radius); padding: var(--space-5); max-width: 520px; width: calc(100% - 32px); box-shadow: var(--shadow-3); color: var(--color-foreground); }
.modal[open] { animation: pop var(--dur) var(--ease); }
@keyframes pop { from { opacity: 0; transform: translateY(6px) scale(0.98); } }
.modal::backdrop { background: rgba(15, 23, 42, 0.45); }
.modal-wide { max-width: 920px; }
.modal h2 { margin: 0 0 10px; font-size: 20px; }
.modal h3 { margin: var(--space-5) 0 var(--space-2); font-size: 15px; }
.modal ul { padding-left: 20px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-4); }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: var(--space-2); }
.data-table th, .data-table td { border-bottom: 1px solid var(--color-border); padding: var(--space-2); text-align: left; vertical-align: middle; }
.data-table th { background: var(--color-sidebar); font-weight: 700; }
.data-table td.num, .data-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: var(--radius-pill); background: var(--color-hover); color: var(--color-muted-text); white-space: nowrap; }
.tag.admin { background: var(--color-accent-soft); color: var(--color-accent-strong); }
.tag.off { background: var(--color-danger-soft); color: var(--color-danger); }
.tag.pending { background: var(--color-warning-soft); color: var(--color-warning); }
.row-actions { display: flex; gap: 4px; flex-wrap: wrap; }

/* Forms (login, admin) */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-4); }
.field label { font-weight: 600; font-size: 14px; }
.field .required { color: var(--color-danger); }
.field input, .field select {
  min-height: 44px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: 8px 12px; background: var(--color-surface); font-size: 15px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input:focus, .field select:focus { border-color: var(--color-accent); box-shadow: 0 0 0 4px var(--color-accent-soft); }
.field input:focus-visible, .field select:focus-visible, .search input:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.field input[aria-invalid="true"] { border-color: var(--color-danger); }
.field .help { font-size: 13px; color: var(--color-muted-text); }
.field-error { font-size: 13px; color: var(--color-danger); }
.password-wrap { position: relative; display: flex; }
.password-wrap input { flex: 1; padding-right: 48px; }
.password-wrap .icon-btn { position: absolute; right: 2px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr 150px auto; gap: var(--space-3); align-items: end; }
.form-grid .field { margin-bottom: 0; }
.form-grid .btn { min-height: 44px; }
.secret { font-family: var(--mono); font-size: 15px; background: var(--color-surface); border: 1px dashed var(--color-border-strong); border-radius: 6px; padding: 4px 8px; user-select: all; }

/* Login page */
body.auth-page { display: grid; place-items: center; overflow: auto; min-height: 100dvh; padding: var(--space-5); }
.auth-card { width: 100%; max-width: 420px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 16px; box-shadow: var(--shadow-1); padding: var(--space-6); }
.auth-card .brand { margin-bottom: var(--space-5); padding: 0; }
.auth-card h1 { font-size: 22px; margin: 0 0 var(--space-1); line-height: 1.3; }
.auth-card .lead { color: var(--color-muted-text); margin: 0 0 var(--space-5); font-size: 14px; }
.auth-card .btn { min-height: 44px; width: 100%; }
.auth-card .error-box { margin-bottom: var(--space-4); }
.auth-foot { margin-top: var(--space-5); font-size: 12px; color: var(--color-muted-text); text-align: center; }

@media (max-width: 1200px) {
  .topbar { flex-wrap: wrap; row-gap: var(--space-1); }
  .topbar-controls { width: 100%; }
}
@media (max-width: 600px) {
  .topbar-controls { flex-wrap: wrap; row-gap: 4px; }
  .topbar-controls .control > span:not(.short) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .topbar-controls .control { flex: 1 1 auto; min-width: 0; }
  .topbar-controls .control select { width: 100%; }
  .topbar-controls .btn .label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .topbar-controls .btn { padding: 6px 10px; }
  .topbar-controls .switch .short { display: inline; }
  .topbar-controls .switch { flex: 0 0 auto; padding: 0 4px; }
  .topbar-controls .control:not(.switch) { flex: 1 1 100%; }
  #export-chat { margin-left: auto; }
}
.switch .short { display: none; }
@media (max-width: 1100px) {
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
  .hint { display: none; }
  .form-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  body { font-size: 16px; }
  .sidebar { position: fixed; inset: 0 auto 0 0; z-index: var(--z-drawer); transform: translateX(-100%); transition: transform 220ms var(--ease); box-shadow: var(--shadow-3); }
  .sidebar.open { transform: none; }
  .only-mobile { display: inline-grid; }
  .outputs { position: fixed; inset: 0 0 0 auto; z-index: var(--z-drawer); width: min(100%, var(--outputs-w)); box-shadow: var(--shadow-3); }
  .topbar { flex-wrap: wrap; padding: var(--space-2) var(--space-3); }
  .thread { padding: var(--space-4) var(--space-3) var(--space-2); }
  .composer { padding: 6px 10px 10px; }
  .agent-grid { grid-template-columns: 1fr; }
  .step .step-body { padding-left: var(--space-4); }
  .form-grid { grid-template-columns: 1fr; }
  .hero h2 { font-size: 22px; }
  .auth-card { padding: var(--space-5); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* Utility classes (replace inline styles so the CSP needs no 'unsafe-inline') */
.u-pad-8 { padding: 8px; }
.u-pad-24 { padding: 24px; }
.u-minw-0 { min-width: 0; }
.u-row { display: flex; gap: 8px; align-items: center; }
.u-wrap { flex-wrap: wrap; }
.u-mt-8 { margin-top: 8px; }
.u-mt-12 { margin-top: 12px; }