:root {
  --paper: #f2efe6;
  --paper-deep: #e7e0d1;
  --ink: #172229;
  --muted: #687078;
  --signal: #ec5428;
  --signal-soft: #ffd7c9;
  --acid: #c8e43d;
  --line: rgba(23, 34, 41, 0.18);
  --dark: #111a20;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --serif: "Bodoni 72", Didot, Georgia, serif;
  --sans: "Avenir Next", Avenir, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--paper); color: var(--ink); }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  background:
    radial-gradient(circle at 9% 7%, rgba(236, 84, 40, 0.09), transparent 24rem),
    linear-gradient(90deg, transparent 49.9%, rgba(23, 34, 41, 0.035) 50%, transparent 50.1%);
}

.paper-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.32;
  z-index: 10;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 140 140' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}

button, input, textarea { font: inherit; }
button { cursor: pointer; }

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 12px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
}

.wordmark { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; font-weight: 700; letter-spacing: -0.03em; }
.wordmark-mark { display: grid; place-items: center; width: 38px; height: 38px; color: var(--paper); background: var(--ink); font-family: var(--serif); font-style: italic; font-size: 25px; }
.masthead-meta { display: flex; align-items: center; gap: 12px; font: 11px/1 var(--mono); letter-spacing: 0.11em; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 4px rgba(200, 228, 61, 0.2); }
.edition { padding-left: 12px; border-left: 1px solid var(--line); color: var(--muted); }

.workspace { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.65fr); min-height: calc(100vh - 116px); }
.builder-panel { padding: clamp(36px, 6vw, 88px) clamp(20px, 5vw, 80px) 80px; border-right: 1px solid var(--line); }
.result-panel { position: sticky; top: 0; align-self: start; min-height: calc(100vh - 76px); padding: clamp(28px, 4vw, 56px); background: var(--dark); color: #f5f0e4; }

.section-kicker, .field-label { font: 11px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.section-kicker { color: var(--signal); }
.headline-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin: 28px 0 56px; }
h1 { margin: 0; font: 500 clamp(56px, 7vw, 104px)/0.86 var(--serif); letter-spacing: -0.065em; }
h1 em { color: var(--signal); font-weight: 400; }
.lede { max-width: 540px; margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.model-stamp { flex: 0 0 auto; padding: 16px; border: 1px solid var(--ink); transform: rotate(-2deg); font-family: var(--mono); }
.model-stamp span { display: block; margin-bottom: 7px; color: var(--signal); font-size: 9px; letter-spacing: 0.16em; }
.model-stamp strong { font-size: 11px; }

.field-label { display: flex; justify-content: space-between; margin-bottom: 10px; color: var(--muted); }
textarea, input { width: 100%; color: var(--ink); background: rgba(255,255,255,0.34); border: 1px solid var(--line); border-radius: 0; outline: none; transition: border-color 160ms, background 160ms, box-shadow 160ms; }
textarea:focus, input:focus { border-color: var(--signal); background: rgba(255,255,255,0.7); box-shadow: 3px 3px 0 var(--signal-soft); }
textarea { min-height: 170px; padding: 20px; resize: vertical; font: 15px/1.7 var(--mono); }
input { height: 44px; padding: 0 12px; font: 13px/1.4 var(--mono); }

.question-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin: 48px 0 18px; }
.question-heading p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.add-menu { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.add-menu button, .text-button { border: 1px solid var(--ink); padding: 8px 10px; color: var(--ink); background: transparent; font: 10px/1 var(--mono); text-transform: uppercase; transition: 150ms; }
.add-menu button:hover, .text-button:hover { color: var(--paper); background: var(--ink); }

.question-list { display: grid; gap: 14px; }
.question-card { position: relative; padding: 18px; border: 1px solid var(--line); background: rgba(255,255,255,0.26); animation: reveal 360ms both; }
.question-card::before { content: ""; position: absolute; left: -1px; top: -1px; bottom: -1px; width: 3px; background: var(--signal); transform: scaleY(0); transform-origin: bottom; transition: transform 180ms; }
.question-card:focus-within::before { transform: scaleY(1); }
.question-card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.question-number { font: 11px/1 var(--mono); color: var(--muted); }
.type-chip { padding: 5px 8px; font: 9px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.12em; border: 1px solid currentColor; }
.type-boolean { color: #16786f; }
.type-choice { color: #b14a22; }
.type-score { color: #6653b4; }
.remove-question { margin-left: auto; padding: 0; border: 0; color: var(--muted); background: none; font: 10px var(--mono); }
.remove-question:hover { color: var(--signal); }
.question-core { display: grid; grid-template-columns: minmax(140px, 0.36fr) 1fr; gap: 10px; }
.question-card label span { display: block; margin-bottom: 6px; color: var(--muted); font: 9px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.criteria-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.criteria-list { display: grid; gap: 7px; margin-top: 10px; }
.option-row { display: grid; grid-template-columns: 30px minmax(100px, 0.32fr) 1fr 28px; gap: 7px; align-items: center; }
.score-row { grid-template-columns: 30px 1fr 28px; }
.drag-index { color: var(--muted); font: 9px var(--mono); }
.icon-button { width: 28px; height: 28px; padding: 0; border: 1px solid var(--line); background: transparent; color: var(--muted); }
.icon-button:hover { color: var(--paper); background: var(--signal); border-color: var(--signal); }
.text-button { justify-self: start; margin: 3px 0 0 37px; border-color: var(--line); }

.submit-row { display: flex; align-items: center; gap: 20px; margin-top: 26px; }
.run-button { min-width: 190px; display: flex; justify-content: space-between; align-items: center; padding: 17px 18px; border: 1px solid var(--ink); color: var(--paper); background: var(--ink); font: 12px var(--mono); text-transform: uppercase; letter-spacing: 0.08em; box-shadow: 5px 5px 0 var(--signal); transition: 160ms; }
.run-button:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--signal); }
.run-button:disabled { opacity: 0.55; cursor: wait; transform: none; }
.run-arrow { font-size: 20px; }
#form-status { margin: 0; color: var(--muted); font: 11px/1.5 var(--mono); }

.result-topline { display: flex; justify-content: space-between; align-items: center; }
.request-state { padding: 6px 8px; border: 1px solid rgba(255,255,255,0.2); color: #9ba4a9; font: 9px var(--mono); letter-spacing: 0.14em; }
.request-state.running { color: #ffd079; border-color: #ffd079; animation: pulse 1s infinite; }
.request-state.complete { color: var(--acid); border-color: var(--acid); }
.request-state.error { color: #ff7b61; border-color: #ff7b61; }
.empty-result { min-height: 65vh; display: grid; place-content: center; text-align: center; }
.empty-result h2 { margin: 28px 0 8px; font: 36px var(--serif); }
.empty-result p { margin: 0; color: #8f999e; font-size: 13px; }
.orbital { position: relative; width: 116px; height: 116px; margin: auto; border: 1px solid rgba(255,255,255,0.2); border-radius: 50%; }
.orbital::before, .orbital::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(255,255,255,0.1); border-radius: 50%; }
.orbital::after { inset: 42px; background: var(--signal); border: 0; box-shadow: 0 0 35px rgba(236,84,40,.5); }
.orbital span { position: absolute; width: 9px; height: 9px; top: 10px; left: 50%; background: var(--acid); border-radius: 50%; transform-origin: 0 48px; animation: orbit 3s linear infinite; }

.result-content { margin-top: 44px; animation: reveal 420ms both; }
.result-content h2 { margin: 0 0 14px; font: 28px var(--serif); font-weight: 400; }
.answer-grid { display: grid; gap: 10px; }
.answer-card { padding: 18px; border: 1px solid rgba(255,255,255,0.13); background: rgba(255,255,255,0.035); }
.answer-card > span { display: block; color: #9ca6aa; font: 10px var(--mono); }
.answer-card strong { display: block; margin: 12px 0; font: 48px/1 var(--serif); font-weight: 400; color: var(--acid); }
.answer-card .choice-answer { font-size: 34px; overflow-wrap: anywhere; }
.answer-card small { color: #69767b; font: 8px var(--mono); letter-spacing: 0.14em; }
.probability-bar { height: 3px; margin-bottom: 10px; background: rgba(255,255,255,0.1); }
.probability-bar i { display: block; height: 100%; background: var(--acid); }
.metrics-section { margin-top: 42px; }
.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,0.13); border-left: 1px solid rgba(255,255,255,0.13); }
.metric { min-width: 0; padding: 14px; border-right: 1px solid rgba(255,255,255,0.13); border-bottom: 1px solid rgba(255,255,255,0.13); }
.metric span { display: block; margin-bottom: 7px; color: #718087; font: 8px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.metric strong { display: block; overflow: hidden; text-overflow: ellipsis; color: #eee8dc; font: 11px var(--mono); white-space: nowrap; }
.raw-result { margin-top: 24px; border-top: 1px solid rgba(255,255,255,0.13); }
.raw-result summary { padding: 14px 0; color: #8f999e; cursor: pointer; font: 10px var(--mono); }
.raw-result pre { max-height: 280px; overflow: auto; margin: 0; padding: 14px; color: #bdc6c9; background: #0a1014; font: 10px/1.65 var(--mono); }

footer { display: flex; justify-content: space-between; padding: 14px clamp(20px, 4vw, 64px); border-top: 1px solid var(--line); color: var(--muted); font: 9px var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.ops-shell { max-width: 1180px; margin: auto; padding: 48px 24px; }
.ops-title { font: 54px var(--serif); margin: 20px 0 36px; }
.ops-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.ops-cell { padding: 18px; background: var(--paper); }
.ops-cell span { color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.ops-cell strong { display: block; margin-top: 10px; font: 14px var(--mono); }
.log-table { width: 100%; margin-top: 28px; border-collapse: collapse; font: 11px/1.5 var(--mono); }
.log-table td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.log-table td:first-child { width: 190px; color: var(--muted); }

@keyframes reveal { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 50% { opacity: .45; } }
@keyframes orbit { to { transform: rotate(360deg); } }

@media (max-width: 980px) {
  .workspace { grid-template-columns: 1fr; }
  .builder-panel { border-right: 0; }
  .result-panel { position: relative; min-height: auto; }
  .empty-result { min-height: 430px; }
  .ops-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .masthead-meta .edition { display: none; }
  .workspace { display: block; }
  .builder-panel, .result-panel { padding: 32px 18px 52px; }
  .headline-row { display: block; margin-bottom: 38px; }
  .model-stamp { display: inline-block; margin-top: 28px; }
  h1 { font-size: 58px; }
  .question-heading { align-items: start; flex-direction: column; }
  .add-menu { justify-content: start; }
  .question-core, .criteria-grid { grid-template-columns: 1fr; }
  .option-row { grid-template-columns: 24px 1fr 28px; }
  .option-row input:nth-of-type(2) { grid-column: 2 / 3; }
  .score-row { grid-template-columns: 24px 1fr 28px; }
  .submit-row { align-items: stretch; flex-direction: column; }
  footer { gap: 12px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}