/* Flowstage UI · standalone styles · MIT. Scope tokens on .fsui or a parent. */
.fsui {
  box-sizing: border-box;
  --fsui-bg: #121419;
  --fsui-panel: #191c22;
  --fsui-border: #30343e;
  --fsui-text: #f0f1f4;
  --fsui-muted: #a4a9b5;
  --fsui-accent: #b9a2ff;
  --fsui-success: #91d7b1;
  --fsui-blue: #9bbcf9;
  --fsui-radius: 12px;
  --fsui-font: Inter, 'Segoe UI', system-ui, sans-serif;
  color: var(--fsui-text);
  background: var(--fsui-bg);
  border: 1px solid var(--fsui-border);
  border-radius: var(--fsui-radius);
  padding: 22px;
  width: 100%;
  min-width: 0;
  font-family: var(--fsui-font);
  font-size: 13px;
  line-height: 1.55;
  text-align: left;
  overflow-wrap: anywhere;
  color-scheme: dark;
}
.fsui *, .fsui *::before, .fsui *::after { box-sizing: border-box; }
.fsui [hidden] { display: none !important; }
.fsui h3, .fsui p, .fsui ol, .fsui dl, .fsui dd { margin: 0; }
.fsui button, .fsui textarea, .fsui input { font: inherit; }
.fsui button { cursor: pointer; }
.fsui button:disabled { cursor: default; opacity: .48; }
.fsui svg { width: 18px; height: 18px; flex: 0 0 auto; }
.fsui :focus-visible { outline: 2px solid var(--fsui-accent); outline-offset: 3px; }
.fsui button, .fsui label, .fsui textarea { -webkit-tap-highlight-color: transparent; }
.fsui-heading { display: flex; align-items: center; gap: 11px; margin-bottom: 22px; }
.fsui-heading-copy { flex: 1; min-width: 0; }
.fsui-heading h3 { font-size: 14px; font-weight: 600; line-height: 1.45; letter-spacing: -.012em; }
.fsui-heading p { color: var(--fsui-muted); font-size: 12px; margin-top: 3px; }
.fsui-mark { display: grid; place-items: center; width: 33px; height: 33px; flex: 0 0 auto; background: #22202e; border: 1px solid #393346; color: var(--fsui-accent); border-radius: 10px; }
.fsui-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 36px; padding: 7px 12px; border: 1px solid var(--fsui-border); border-radius: 7px; background: var(--fsui-panel); color: var(--fsui-text); font-size: 12px; font-weight: 550; line-height: 1.3; transition: background-color .16s, border-color .16s; }
.fsui-button svg { width: 14px; height: 14px; }
.fsui-button:hover:not(:disabled) { border-color: #63636f; background: #24272f; }
.fsui-button--primary { color: #1b142c; background: var(--fsui-accent); border-color: var(--fsui-accent); }
.fsui-button--primary:hover:not(:disabled) { background: #c9b6ff; border-color: #c9b6ff; }
.fsui-button--text { background: transparent; border-color: transparent; color: var(--fsui-muted); padding-left: 7px; padding-right: 7px; }
.fsui-button--quiet { background: transparent; }
.fsui-button--chip { border-radius: 6px; font-size: 11px; font-weight: 450; background: transparent; min-height: 32px; }
.fsui-controls { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
.fsui-hint { color: var(--fsui-muted); font-size: 11px; }
.fsui-controls > .fsui-hint { margin-left: auto; }
.fsui-status { display: inline-flex; align-items: center; gap: 6px; color: var(--fsui-muted); font-size: 10px; font-weight: 500; padding: 3px 7px; border-radius: 5px; background: #24272f; white-space: nowrap; }
.fsui-status--success { color: var(--fsui-success); background: #1b2b25; }
.fsui-status--blue { color: var(--fsui-blue); background: #1d293f; }
.fsui-live { min-height: 0; color: var(--fsui-muted); font-size: 11px; }
.fsui-live:not(:empty) { margin-top: 10px; }
.fsui-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* Thinking trace */
.fsui-trace-summary { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-bottom: 12px; border-bottom: 1px solid #282c34; }
.fsui-trace { padding: 0; list-style: none; margin-top: 8px !important; }
.fsui-trace-step { display: flex; align-items: flex-start; gap: 13px; position: relative; }
.fsui-trace-step:not(:last-child)::after { content: ''; position: absolute; left: 10px; top: 38px; bottom: -12px; width: 1px; background: var(--fsui-border); }
.fsui-step-icon { display: grid; place-items: center; width: 21px; height: 21px; flex: 0 0 auto; margin-top: 18px; border-radius: 50%; border: 1px solid var(--fsui-border); background: var(--fsui-bg); color: var(--fsui-muted); }
.fsui-step-icon svg { width: 12px; height: 12px; }
.fsui-step-icon--complete { color: var(--fsui-success); background: #1b2b25; border-color: #335441; }
.fsui-step-icon--running { color: var(--fsui-blue); }
.fsui-step-icon--error { color: #f4b6a7; border-color: #63473f; }
.fsui-trace-body { flex: 1; min-width: 0; }
.fsui-step-toggle { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 66px; border: 0; padding: 14px 0; background: none; color: var(--fsui-text); text-align: left; }
.fsui-step-toggle > svg { width: 14px; height: 14px; margin-left: auto; color: var(--fsui-muted); transition: transform .16s; }
.fsui-step-toggle[aria-expanded='true'] > svg { transform: rotate(90deg); }
.fsui-step-label { display: flex; flex-direction: column; gap: 3px; }
.fsui-step-label strong { font-size: 12px; font-weight: 550; }
.fsui-step-label > span { font-size: 11px; color: var(--fsui-muted); }
.fsui-step-detail { color: var(--fsui-muted); padding: 0 13px 15px 0; font-size: 12px; line-height: 1.65; }

/* Response playback */
.fsui-response { white-space: pre-wrap; font-size: 13px; line-height: 1.85; color: #d8dbe2; min-height: 204px; }
.fsui-response.is-streaming::after { content: ''; display: inline-block; width: 5px; height: 14px; margin-left: 4px; vertical-align: -2px; border-radius: 1px; background: var(--fsui-accent); }
.fsui--streaming-response .fsui-controls { border-top: 1px solid #282c34; padding-top: 16px; }

/* Approval */
.fsui-action { background: #171a20; border: 1px solid #2a2e37; border-radius: 8px; padding: 14px; }
.fsui-action > strong { font-size: 12px; font-weight: 600; }
.fsui-action > p { margin-top: 5px; color: var(--fsui-muted); font-size: 12px; }
.fsui-facts { border-top: 1px solid #2a2e37; padding-top: 10px; margin-top: 12px !important; display: grid; gap: 5px; font-size: 11px; }
.fsui-facts > div { display: flex; gap: 16px; justify-content: space-between; }
.fsui-facts dt { color: var(--fsui-muted); }
.fsui-facts dd { text-align: right; }
.fsui-scopes { min-width: 0; padding: 0; border: 0; margin: 17px 0 0; }
.fsui-scopes legend { color: var(--fsui-muted); font-size: 11px; padding: 0 0 9px; }
.fsui-scope { display: flex; align-items: flex-start; gap: 9px; padding: 7px 0; cursor: pointer; }
.fsui input[type='radio'], .fsui input[type='checkbox'] { width: 15px; height: 15px; accent-color: var(--fsui-accent); flex: 0 0 auto; margin: 3px 0 0; cursor: pointer; }
.fsui-scope > span { display: flex; flex-direction: column; gap: 2px; }
.fsui-scope strong { font-size: 12px; font-weight: 500; }
.fsui-scope > span > span { color: var(--fsui-muted); font-size: 11px; }
.fsui-scopes:disabled { opacity: .55; }
.fsui-decision { font-size: 10px; color: var(--fsui-muted); margin-top: 13px !important; }
.fsui-decision[data-status='approved'] { color: var(--fsui-success); }
.fsui-decision[data-status='rejected'] { color: #f4b6a7; }
.fsui--approval-card .fsui-controls { margin-top: 14px; }

/* Task list */
.fsui-progress-line { display: flex; align-items: center; gap: 20px; font-size: 11px; color: var(--fsui-muted); margin-bottom: 16px; }
.fsui-progress { height: 4px; border: none; border-radius: 8px; overflow: hidden; flex: 1; min-width: 0; background: #292d36; accent-color: var(--fsui-success); }
.fsui-progress::-webkit-progress-bar { background: #292d36; border-radius: 8px; }
.fsui-progress::-webkit-progress-value { background: var(--fsui-success); border-radius: 8px; }
.fsui-progress::-moz-progress-bar { background: var(--fsui-success); border-radius: 8px; }
.fsui-task-list { list-style: none; padding: 0; }
.fsui-task { display: flex; align-items: center; gap: 10px; padding: 15px 0; border-bottom: 1px solid #282c34; }
.fsui-task-mark { color: var(--fsui-muted); display: flex; }
.fsui-task-mark svg { width: 17px; height: 17px; }
.fsui-task-copy { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.fsui-task-copy strong { font-size: 12px; font-weight: 500; }
.fsui-task-copy > span { font-size: 10px; color: var(--fsui-muted); }
.fsui-task > .fsui-status { font-size: 9px; }
.fsui-task[data-status='complete'] .fsui-task-mark { color: var(--fsui-success); }
.fsui-task[data-status='error'] .fsui-task-mark, .fsui-task[data-status='error'] .fsui-status { color: #f4b6a7; }
.fsui-task[data-status='running'] .fsui-task-mark, .fsui-task[data-status='running'] .fsui-status { color: var(--fsui-blue); }
.fsui-task > .fsui-button { padding: 4px; min-height: 28px; font-size: 10px; }
.fsui-task > .fsui-button svg { display: none; }

/* Context sources */
.fsui-source-list { display: grid; gap: 9px; }
.fsui-source { display: flex; align-items: flex-start; gap: 11px; padding: 13px; border: 1px solid var(--fsui-border); border-radius: 8px; cursor: pointer; transition: border-color .16s, background-color .16s; }
.fsui-source:hover { background: #1b1d25; }
.fsui-source.is-selected { border-color: #51466b; background: #1a1823; }
.fsui-source-icon { display: grid; place-items: center; width: 28px; height: 30px; color: var(--fsui-muted); border: 1px solid #3a3b48; border-radius: 6px; flex: 0 0 auto; }
.fsui-source-icon svg { width: 15px; height: 15px; }
.fsui-source-copy { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.fsui-source-title { display: flex; align-items: baseline; justify-content: space-between; gap: 7px; flex-wrap: wrap; }
.fsui-source-title strong { font-size: 12px; font-weight: 550; }
.fsui-source-title > span { color: var(--fsui-muted); font-size: 9px; }
.fsui-source-excerpt { margin-top: 4px; color: var(--fsui-muted); font-size: 11px; line-height: 1.6; }
.fsui-source-meta { margin-top: 7px; color: #b3a4d6; font-size: 10px; }
.fsui-selection-summary { flex: 1; font-size: 11px; color: var(--fsui-muted); }
.fsui--context-sources .fsui-controls { margin-top: 12px; }

/* Prompt composer */
.fsui-suggestions { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 15px; }
.fsui-composer { border: 1px solid #515061; border-radius: 9px; background: #17191f; overflow: hidden; }
.fsui-composer:focus-within { border-color: var(--fsui-accent); box-shadow: 0 0 0 2px #b9a2ff16; }
.fsui-textarea { color: var(--fsui-text); background: transparent; border: 0; padding: 15px; resize: vertical; width: 100%; min-height: 118px; max-height: 280px; display: block; font-size: 13px; line-height: 1.7; border-radius: 9px 9px 0 0; }
.fsui-textarea::placeholder { color: #959aaa; }
.fsui .fsui-textarea:focus-visible { outline: 0; }
.fsui-composer-toolbar { display: flex; gap: 7px; align-items: center; padding: 0 10px 10px; }
.fsui-composer-toolbar > .fsui-hint { margin-right: auto; }
.fsui-composer-toolbar .fsui-button { font-size: 11px; padding: 8px 10px; }
.fsui-composer-help { margin-top: 10px !important; color: var(--fsui-muted); font-size: 10px; }
.fsui-example-reply { border-top: 1px solid var(--fsui-border); padding-top: 15px; margin-top: 18px; }
.fsui-example-reply > strong { display: block; color: var(--fsui-accent); font-size: 11px; font-weight: 550; margin-bottom: 6px; }
.fsui-example-reply > p { color: #c5c9d2; font-size: 12px; line-height: 1.75; }

@media (max-width: 480px) {
  .fsui { padding: 17px; }
  .fsui-heading { gap: 9px; margin-bottom: 18px; }
  .fsui-heading h3 { font-size: 13px; }
  .fsui-heading p { font-size: 11px; }
  .fsui--streaming-response .fsui-heading { flex-wrap: wrap; }
  .fsui--streaming-response .fsui-heading > .fsui-status { margin-left: 42px; }
  .fsui-controls { gap: 6px; }
  .fsui-controls > .fsui-hint { width: 100%; margin: 4px 0 0; }
  .fsui-task { gap: 8px; flex-wrap: wrap; }
  .fsui-task-copy { flex-basis: calc(100% - 28px); }
  .fsui-task > .fsui-status { margin-left: 25px; }
  .fsui-task > .fsui-button { margin-left: auto; }
  .fsui-source { padding: 11px; gap: 9px; }
  .fsui-source-icon { display: none; }
  .fsui-source-title { flex-direction: column; gap: 0; }
  .fsui-composer-toolbar { flex-wrap: wrap; }
  .fsui-composer-toolbar > .fsui-hint { width: 100%; }
  .fsui-composer-toolbar > .fsui-button--primary { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .fsui *, .fsui *::before, .fsui *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}