:root {
  color-scheme: light dark;
  --page: light-dark(#fff, #212121);
  --side: light-dark(#f6f6f5, #181818);
  --surface: light-dark(#f5f5f4, #2d2d2d);
  --text: light-dark(#262626, #ededed);
  --muted: light-dark(#62625f, #b0b0aa);
  --border: light-dark(#e2e2df, #41413d);
  --active: light-dark(#e8e8e5, #30302e);
  --accent: light-dark(#29644f, #b3d7c6);
  --button: light-dark(#262626, #ededed);
  --button-text: light-dark(#fff, #212121);
  --error: light-dark(#a32b2b, #ffb2ae);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text);
}
* { box-sizing: border-box; }
body { margin: 0; }
button, select, input, textarea { font: inherit; }
button, select { cursor: pointer; }
button { color: inherit; }
button:disabled { cursor: wait; opacity: .6; }
button:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
[hidden] { display: none !important; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.app-shell { display: flex; height: 100vh; height: 100dvh; overflow: hidden; }
.sidebar { width: 218px; flex: 0 0 218px; display: flex; flex-direction: column; padding: 22px 14px 14px; background: var(--side); }
.brand { display: flex; align-items: center; gap: 9px; padding: 0 10px 28px; font-size: 16px; font-weight: 600; letter-spacing: -.4px; }
.brand-symbol { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; color: var(--accent); background: var(--page); }
.navigation-button { display: flex; align-items: center; gap: 10px; border: 0; border-radius: 8px; padding: 10px; background: transparent; width: 100%; text-align: start; }
.navigation-button:hover { background: var(--active); }
.history-label { margin: 26px 10px 8px; color: var(--muted); font-size: 12px; }
.history-list { flex: 1; min-height: 0; overflow: auto; }
.history-list button { display: block; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.history-list button[aria-current="true"] { background: var(--active); }
.sidebar-bottom { padding-top: 18px; }
.identity { display: flex; gap: 10px; align-items: center; padding: 14px 10px 6px; }
.avatar { display: grid; place-items: center; width: 31px; height: 31px; border-radius: 50%; background: var(--active); font-size: 12px; }
small { display: block; color: var(--muted); font-size: 12px; font-weight: 400; }
.main-pane { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.chat-header { flex-shrink: 0; min-height: 66px; display: flex; align-items: center; gap: 12px; padding: 16px 25px; }
.chat-title { font-weight: 500; flex: 1; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.connection-status { color: var(--muted); font-size: 12px; padding: 3px 8px; border: 1px solid var(--border); border-radius: 6px; background: transparent; white-space: nowrap; }
.connection-status[data-state="connected"] { color: var(--accent); }
.icon-button { border: 0; background: transparent; display: inline-flex; padding: 7px; align-items: center; justify-content: center; border-radius: 6px; }
.icon-button:hover { background: var(--surface); }
.compact-settings { display: none; }
.chat-pane { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.conversation-scroll { flex: 1; min-height: 0; overflow: auto; padding: 64px 32px 30px; scrollbar-width: thin; }
.welcome { max-width: 620px; margin: 0 auto; }
.greeting-symbol { width: 36px; height: 36px; margin-bottom: 18px; background: var(--surface); border-radius: 11px; display: grid; place-items: center; color: var(--accent); }
.greeting-symbol svg { width: 22px; height: 22px; }
h1 { margin: 0 0 12px; font-size: 25px; font-weight: 500; line-height: 1.3; letter-spacing: -.8px; }
p { margin: 0; }
.welcome p { max-width: 445px; color: var(--muted); }
.context-chip { display: inline-flex; align-items: center; gap: 7px; margin: 22px 0 12px; border: 1px solid var(--border); border-radius: 999px; padding: 5px 11px; font-size: 12px; }
.context-chip svg { width: 14px; height: 14px; }
.text-button { border: 0; background: transparent; padding: 4px 0; color: var(--muted); font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
.welcome .text-button { margin-left: 10px; }
.message-list { display: grid; gap: 32px; max-width: 740px; margin: 0 auto; }
.turn { display: grid; gap: 25px; }
.user-message { background: var(--surface); border-radius: 17px; padding: 12px 16px; max-width: 90%; justify-self: end; overflow-wrap: anywhere; white-space: pre-wrap; }
.assistant-message { min-width: 0; }
.assistant-label { display: flex; align-items: center; gap: 8px; font-weight: 500; margin-bottom: 9px; }
.assistant-label svg { color: var(--accent); }
.assistant-content { overflow-wrap: anywhere; }
.assistant-content.streaming { white-space: pre-wrap; }
.assistant-content p, .assistant-content ul, .assistant-content ol, .assistant-content pre, .assistant-content h2, .assistant-content h3 { margin: 0 0 14px; }
.assistant-content h2 { font-size: 19px; font-weight: 500; }
.assistant-content h3 { font-size: 16px; font-weight: 500; }
.assistant-content ul, .assistant-content ol { padding-inline-start: 24px; }
.assistant-content code { font-family: ui-monospace, Consolas, monospace; background: var(--surface); border-radius: 4px; padding: 1px 4px; font-size: .92em; }
.assistant-content pre { padding: 15px; background: var(--surface); border-radius: 10px; white-space: pre-wrap; }
.assistant-content pre code { padding: 0; }
.table-scroll { overflow-x: auto; margin-bottom: 14px; }
.assistant-content table { border-collapse: collapse; min-width: 100%; }
.assistant-content th, .assistant-content td { text-align: start; border-bottom: 1px solid var(--border); padding: 8px 12px; }
.assistant-content th { font-weight: 500; }
.message-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.message-actions button { font-size: 12px; color: var(--muted); border: 0; padding: 4px 0; background: transparent; }
.turn-status { font-size: 12px; color: var(--muted); }
.turn-error { color: var(--error); }
.compose-zone { flex-shrink: 0; padding: 0 28px 15px; }
.composer { max-width: 740px; margin: 0 auto; border: 1px solid var(--border); border-radius: 22px; padding: 13px 13px 10px 18px; box-shadow: 0 3px 14px light-dark(#00000006, #00000012); }
textarea { display: block; width: 100%; border: 0; resize: none; min-height: 52px; max-height: 160px; color: var(--text); background: transparent; padding: 0; }
textarea::placeholder { color: var(--muted); }
textarea:focus-visible { outline: none; }
.composer:focus-within { border-color: var(--accent); }
.composer-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 6px; }
.composer-footer > span { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.send-button { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; border: 0; background: var(--button); color: var(--button-text); flex-shrink: 0; }
.stop-button { border: 1px solid var(--border); border-radius: 8px; padding: 5px 10px; background: var(--surface); white-space: nowrap; }
.composer-meta { margin-top: 10px; font-size: 11px; color: var(--muted); text-align: center; display: grid; gap: 3px; }
.notice { margin: 0 25px 10px; font-size: 12px; padding: 9px 12px; border-radius: 8px; background: var(--surface); color: var(--muted); }
.settings-pane { padding: 16px 32px 32px; max-width: 720px; width: 100%; align-self: center; overflow: auto; }
.back-button { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px; text-decoration: none; }
.settings-intro { color: var(--muted); margin-bottom: 24px; }
.settings-group { font-size: 12px; font-weight: 600; margin: 22px 0 3px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.setting-row { display: grid; grid-template-columns: minmax(115px, 1fr) minmax(150px, 1.25fr); gap: 16px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.setting-row label { font-weight: 500; }
.setting-row select, .setting-row input { min-width: 0; width: 100%; background: var(--page); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; text-overflow: ellipsis; }
.settings-actions { display: flex; justify-content: flex-end; align-items: center; gap: 9px; margin-top: 26px; }
.secondary-button, .primary-button { border: 1px solid var(--border); border-radius: 8px; background: var(--page); padding: 8px 15px; }
.primary-button { background: var(--button); color: var(--button-text); border-color: var(--button); }
.settings-error { margin-top: 16px; color: var(--error); }
.stepper-bar { flex-shrink: 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 8px 24px; background: var(--surface); border-bottom: 1px solid var(--border); font-size: 13px; }
.stepper-meta { display: flex; align-items: center; gap: 10px; min-width: 0; }
.stepper-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 600; background: var(--page); border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; color: var(--accent); white-space: nowrap; }
.stepper-icon { width: 13px; height: 13px; stroke: currentColor; stroke-width: 1.8; fill: none; }
.stepper-count { font-weight: 600; white-space: nowrap; color: var(--text); }
.stepper-domain { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .03em; background: var(--active); padding: 2px 7px; border-radius: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; }
.stepper-controls { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.stepper-btn { border: 1px solid var(--border); border-radius: 6px; background: var(--page); color: var(--text); font-size: 12px; font-weight: 500; padding: 5px 11px; cursor: pointer; display: inline-flex; align-items: center; gap: 4px; transition: background 0.15s, border-color 0.15s; }
.stepper-btn:hover:not(:disabled) { background: var(--active); }
.stepper-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.stepper-btn.primary { background: var(--button); color: var(--button-text); border-color: var(--button); font-weight: 600; }
.stepper-btn.primary:hover:not(:disabled) { opacity: 0.9; }
.stepper-btn.auto { border-color: var(--accent); color: var(--accent); }
.stepper-btn.auto.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.stepper-select { background: var(--page); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font-size: 12px; max-width: 240px; cursor: pointer; }
body.sidebar-collapsed .sidebar { display: none; }
body.sidebar-collapsed .compact-settings { display: inline-flex; }
@media (max-width: 700px) {
  .sidebar { width: 175px; flex-basis: 175px; }
  .stepper-bar { padding: 6px 14px; gap: 8px; }
  .stepper-select { max-width: 160px; }
  .conversation-scroll { padding: 45px 22px 30px; }
  .setting-row { grid-template-columns: 1fr; gap: 6px; }
  .settings-pane { padding: 8px 23px 24px; }
}
@media (max-width: 520px) {
  .sidebar { display: none; }
  body.mobile-sidebar-open .sidebar { display: flex; position: absolute; inset: 0 auto 0 0; width: min(280px, 85vw); z-index: 5; box-shadow: 5px 0 20px #0002; }
  .compact-settings { display: inline-flex; }
  .chat-header { padding: 12px 14px; gap: 7px; }
  .stepper-bar { padding: 6px 12px; }
  .stepper-domain { display: none; }
  .stepper-select { width: 100%; max-width: none; }
  .connection-status { max-width: 130px; overflow: hidden; text-overflow: ellipsis; }
  .compose-zone { padding: 0 14px 12px; }
  h1 { font-size: 23px; }
  .context-chip { margin-bottom: 5px; }
  .welcome .text-button { margin-left: 0; display: block; }
  .setting-row select, .setting-row input, textarea { font-size: 16px; }
  .settings-actions { flex-wrap: wrap; }
  .notice { margin-inline: 14px; }
}
@media (pointer: coarse) {
  button, select, input { min-height: 44px; }
  .send-button { width: 44px; }
}