:root {
  color-scheme: light;
  --canvas: #f2f4f1;
  --surface: #ffffff;
  --surface-muted: #f7f8f6;
  --ink: #202823;
  --muted: #657169;
  --faint: #89938c;
  --line: #dce2dc;
  --line-strong: #c6d0c8;
  --accent: #28624f;
  --accent-soft: #e8f1eb;
  --danger: #a33f37;
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.55;
}

button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid #88b5a1;
  outline-offset: 2px;
}

.masthead {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  font-size: 11px;
  font-weight: 760;
  letter-spacing: .11em;
}

.brand-mark {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  font-size: 14px;
  letter-spacing: 0;
}

.brand-separator, .meta-divider { color: var(--faint); }
.masthead-meta, .eyebrow, .raw-format, .keyboard-note, .page-footer {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .055em;
}
.masthead-meta { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.live-dot, .state-dot { width: 7px; height: 7px; border-radius: 50%; background: #57916f; }

.page-shell { width: min(1480px, calc(100% - 40px)); margin: 0 auto; }
.intro { padding: 40px 0 30px; }
.eyebrow { color: var(--accent); text-transform: uppercase; font-weight: 700; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin: 8px 0 7px; font-size: clamp(34px, 4vw, 48px); line-height: 1.05; letter-spacing: -.055em; font-weight: 680; }
h1 span { color: var(--muted); font-weight: 430; }
.intro p { margin: 0; color: var(--muted); font-size: 14px; }
.intro p.intro-warning { margin-top: 9px; color: #77551d; font-size: 12px; }

.workspace { display: grid; grid-template-columns: minmax(340px, .92fr) minmax(420px, 1.08fr); gap: 18px; align-items: start; }
.output-column { display: grid; gap: 18px; }
.panel { border: 1px solid var(--line); background: var(--surface); }
.composer { padding: 22px; }
.results-panel, .raw-panel { padding: 22px; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
h2 { margin: 4px 0 0; font-size: 19px; letter-spacing: -.035em; line-height: 1.2; font-weight: 650; }
.example-picker select { width: auto; min-width: 118px; padding-right: 30px; font-size: 12px; }

.field-label { display: block; margin: 0 0 6px; font-size: 12px; font-weight: 650; color: #38423c; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: #fff;
  color: var(--ink);
  padding: 9px 10px;
}
textarea { min-height: 60px; resize: vertical; line-height: 1.5; }
input::placeholder, textarea::placeholder { color: #7a857d; opacity: 1; }
select { appearance: auto; }
#state-input { min-height: 126px; }
.field-note { margin: 5px 0 16px; color: var(--muted); font-size: 11px; }

.question-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; margin: 26px 0 6px; }
.question-heading .field-note { margin: -2px 0 8px; }
.button {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 650;
  transition: background-color 140ms ease, color 140ms ease, transform 140ms ease;
}
.button:active { transform: scale(.98); }
.button-primary { background: #203b30; color: #fff; }
.button-primary:hover { background: #315845; }
.button-primary:disabled { cursor: wait; opacity: .68; }
.button-subtle { border-color: var(--line-strong); background: var(--surface); color: var(--ink); white-space: nowrap; }
.button-subtle:hover { background: var(--surface-muted); }
.form-actions { display: flex; align-items: center; gap: 14px; padding-top: 18px; border-top: 1px solid var(--line); }
.keyboard-note { color: var(--faint); }

.question-list { display: grid; }
.question-card { min-width: 0; margin: 0; padding: 16px 0 17px; border: 0; border-top: 1px solid var(--line); }
.question-card-head { display: grid; grid-template-columns: minmax(100px, .8fr) minmax(150px, 1.2fr) auto; gap: 9px; align-items: end; margin-bottom: 13px; }
.question-key-wrap, .question-type-wrap { min-width: 0; }
.question-key-wrap input, .question-type-wrap select { height: 38px; padding-top: 7px; padding-bottom: 7px; }
.remove-question, .remove-item, .move-criterion, .copy-button {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
}
.remove-question { height: 38px; padding: 0 9px; font-size: 11px; }
.remove-question:hover, .remove-item:hover { border-color: #d4a09a; color: var(--danger); }
.question-instructions { min-height: 62px; }
.type-editor { margin-top: 13px; padding-top: 12px; border-top: 1px dashed var(--line); }
.type-hint { margin: 0; color: var(--muted); font-size: 11px; }
.editor-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.editor-heading .field-label { margin: 0; }
.editor-help { margin: 3px 0 9px; color: var(--muted); font-size: 11px; }
.editable-list { display: grid; gap: 6px; }
.editable-item { display: grid; align-items: center; gap: 6px; }
.option-item { grid-template-columns: minmax(76px, .62fr) minmax(120px, 1.5fr) 30px; }
.criterion-item { grid-template-columns: 22px minmax(140px, 1fr) 28px 28px 30px; }
.editable-item input { min-width: 0; height: 34px; padding: 6px 8px; font-size: 12px; }
.criterion-index { color: var(--faint); text-align: center; font-family: var(--mono); font-size: 11px; }
.remove-item, .move-criterion { width: 28px; height: 28px; padding: 0; font-size: 14px; line-height: 1; }
.move-criterion { font-family: var(--mono); }
.small-add { margin-top: 8px; padding: 4px 0; border: 0; background: transparent; color: var(--accent); font-size: 11px; font-weight: 650; }
.small-add:hover { text-decoration: underline; }

.request-state { display: inline-flex; align-items: center; gap: 8px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); font-family: var(--mono); font-size: 10px; white-space: nowrap; }
.request-state[data-state="busy"] .state-dot { background: #c08b35; animation: pulse 1s ease-in-out infinite; }
.request-state[data-state="error"] .state-dot { background: var(--danger); }
.request-state[data-state="success"] .state-dot { background: #57916f; }
@keyframes pulse { 50% { opacity: .35; } }
.empty-state { min-height: 235px; display: grid; align-content: center; justify-items: start; padding: 26px; border: 1px dashed var(--line-strong); background: var(--surface-muted); }
.empty-mark { width: 34px; height: 34px; display: grid; place-items: center; margin-bottom: 18px; border: 1px solid var(--line-strong); color: var(--accent); font-family: var(--mono); }
.empty-state h3 { margin-bottom: 4px; font-size: 16px; letter-spacing: -.02em; }
.empty-state p { max-width: 34ch; margin: 0; color: var(--muted); font-size: 12px; }
.decision-results { display: grid; gap: 12px; }
.answer-card { padding: 15px; border: 1px solid var(--line); background: var(--surface-muted); }
.answer-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 11px; }
.answer-name { margin: 0; font-size: 13px; font-weight: 700; overflow-wrap: anywhere; }
.answer-instructions { margin: 2px 0 0; color: var(--muted); font-size: 11px; }
.type-tag { flex: 0 0 auto; padding: 3px 6px; border: 1px solid var(--line); background: #fff; color: var(--muted); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .04em; }
.answer-main { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 10px 0 8px; }
.answer-value { margin: 0; color: var(--accent); font-size: 18px; line-height: 1.2; font-weight: 700; letter-spacing: -.03em; overflow-wrap: anywhere; }
.answer-detail { color: var(--muted); font-family: var(--mono); font-size: 10px; white-space: nowrap; }
.probability-list { display: grid; gap: 7px; margin-top: 12px; }
.probability-row { display: grid; grid-template-columns: minmax(86px, 1fr) minmax(70px, 2fr) 45px; align-items: center; gap: 9px; font-size: 10px; }
.probability-label { color: var(--muted); overflow-wrap: anywhere; }
.bar-track { height: 6px; overflow: hidden; background: #e2e7e2; }
.bar-fill { height: 100%; background: var(--accent); }
.probability-number { text-align: right; color: var(--muted); font-family: var(--mono); font-size: 10px; }
.score-axis { display: flex; justify-content: space-between; margin-top: 8px; color: var(--faint); font-family: var(--mono); font-size: 9px; }
.response-meta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 10px; }
.response-error { padding: 12px; border: 1px solid #e6c7c4; background: #fff7f6; color: #7c302b; font-size: 12px; }

.raw-heading { margin-bottom: 14px; }
.raw-format { color: var(--faint); }
.json-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.json-pane { min-width: 0; border: 1px solid var(--line); }
.json-label { height: 35px; display: flex; align-items: center; justify-content: space-between; padding: 0 9px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; font-weight: 650; }
.copy-button { padding: 3px 7px; font-size: 10px; }
.copy-button:hover { color: var(--accent); border-color: var(--accent); }
.json-output { min-height: 120px; max-height: 280px; overflow: auto; margin: 0; padding: 10px; background: #fbfcfa; color: #344139; font-family: var(--mono); font-size: 10px; line-height: 1.55; white-space: pre-wrap; overflow-wrap: anywhere; }
.page-footer { display: flex; justify-content: space-between; gap: 12px; padding: 20px 0 28px; color: var(--faint); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 980px) {
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .output-column { grid-row: 2; }
}

@media (max-width: 600px) {
  .page-shell { width: min(100% - 24px, 720px); }
  .masthead { height: 54px; padding: 0 12px; }
  .masthead-meta { font-size: 8px; gap: 5px; }
  .intro { padding: 30px 0 22px; }
  .composer, .results-panel, .raw-panel { padding: 16px; }
  .panel-heading { margin-bottom: 18px; }
  .question-card-head { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
  .remove-question { grid-column: 2; justify-self: end; height: 30px; }
  .json-grid { grid-template-columns: 1fr; }
  .page-footer { flex-direction: column; gap: 4px; }
  .probability-row { grid-template-columns: minmax(72px, 1fr) minmax(60px, 1.4fr) 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}