.diagnosis-demo { --amber: #906020; --amber-wash: #f0e6d2; }
.diagnosis-demo .example-heading { padding: 55px 48px 42px; }
.diagnosis-demo .subject { margin-bottom: 16px; color: var(--muted); font-size: 15px; }
.diagnosis-demo .example-heading h1 { font-size: clamp(40px,4.6vw,64px); max-width: 850px; line-height: 1.07; }
.diagnosis-demo .lead { margin-top: 23px; color: var(--muted); max-width: 660px; font-size: 18px; }
.diagnosis-demo .walkthrough { margin: 0 48px; border: 1px solid var(--line); scroll-margin-top: 20px; }
.diagnosis-demo .example-context { padding: 14px 24px; display: flex; justify-content: space-between; gap: 16px; align-items: baseline; font-size: 12px; color: var(--muted); background: #e5e6dc; }
.diagnosis-demo .example-context > span { flex-shrink: 0; color: var(--ink); font-weight: 500; }
.diagnosis-demo .steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-block: 1px solid var(--line); }
.diagnosis-demo button { font-family: "IA Foundry Sans",sans-serif; cursor: pointer; }
.diagnosis-demo button:disabled { cursor: default; }
.diagnosis-demo .steps button { background: transparent; border: 0; padding: 22px 20px; text-align: left; color: var(--muted); display: flex; align-items: center; gap: 14px; font-size: 16px; line-height: 1.4; position: relative; }
.diagnosis-demo .steps button + button { border-left: 1px solid var(--line); }
.diagnosis-demo .steps button[aria-pressed="true"] { color: var(--ink); background: var(--panel); }
.diagnosis-demo .steps button[aria-pressed="true"]::after { content: ""; position: absolute; bottom: -1px; height: 3px; left: 0; right: 0; background: var(--green); }
.diagnosis-demo .step-number { font: 500 27px/1 "IA Foundry Display",sans-serif; }
.diagnosis-demo .steps small { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
.diagnosis-demo .evidence-choice { padding: 18px 24px; margin: 0; border: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; font-size: 13px; border-bottom: 1px solid var(--line); }
.diagnosis-demo .evidence-choice legend { float: left; padding: 0; margin-right: 24px; color: var(--muted); line-height: 44px; }
.diagnosis-demo .evidence-choice label { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; cursor: pointer; }
.diagnosis-demo .evidence-choice input { width: 16px; height: 16px; accent-color: var(--green); margin: 0; }
.diagnosis-demo .evidence-choice input:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
.diagnosis-demo .scene { background: #f6f5ef; }
.diagnosis-demo .scene-panel { display: grid; grid-template-columns: 1.4fr 1fr; min-height: 440px; }
.diagnosis-demo [hidden] { display: none !important; }
.diagnosis-demo .incident-visual, .diagnosis-demo .trace-visual { padding: 32px; min-width: 0; }
.diagnosis-demo .scene-title { display: flex; gap: 20px; justify-content: space-between; align-items: flex-start; }
.diagnosis-demo .scene h2 { font-size: 38px; line-height: 1.13; }
.diagnosis-demo .scene h3 { font-size: 22px; line-height: 1.3; }
.diagnosis-demo .state-label { font-size: 12px; padding: 4px 10px; border: 1px solid var(--amber); color: var(--amber); border-radius: 3px; }
.diagnosis-demo .machine { margin-top: 22px; }
.diagnosis-demo .machine svg { display: block; width: 100%; height: auto; color: var(--green); }
.diagnosis-demo .machine figcaption { color: var(--muted); font-size: 14px; max-width: 46ch; margin-top: 10px; }
.diagnosis-demo .incident-story { border-left: 1px solid var(--line); padding: 34px 28px; }
.diagnosis-demo .event-list { list-style: none; margin: 28px 0; padding: 0; }
.diagnosis-demo .event-list li { display: grid; grid-template-columns: 68px 1fr; gap: 20px; padding: 0 0 26px; position: relative; }
.diagnosis-demo .event-list li:last-child { padding-bottom: 0; }
.diagnosis-demo .event-list li::before { content: ""; position: absolute; width: 1px; background: var(--line); top: 8px; left: 75px; bottom: -8px; }
.diagnosis-demo .event-list li:last-child::before { bottom: 8px; }
.diagnosis-demo .event-list time { font-size: 12px; color: var(--muted); padding-top: 3px; }
.diagnosis-demo .event-list strong { font-weight: 500; font-size: 15px; }
.diagnosis-demo .event-list p { font-size: 14px; color: var(--muted); margin-top: 3px; }
.diagnosis-demo .agent-action { font-size: 15px; color: var(--muted); padding-top: 20px; border-top: 1px solid var(--line); }
.diagnosis-demo .supporting { font-size: 14px; margin-top: 16px; color: var(--muted); }
.diagnosis-demo .logic-map { display: grid; grid-template-columns: minmax(0,1.65fr) 52px minmax(100px,.85fr); align-items: center; margin-top: 34px; }
.diagnosis-demo .conditions { display: grid; gap: 14px; }
.diagnosis-demo .condition { width: 100%; min-height: 68px; display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 13px 14px; border: 1px solid #b0beac; color: var(--green); background: #e8ede1; text-align: left; position: relative; font-size: 14px; line-height: 1.4; }
.diagnosis-demo .condition[aria-pressed="true"] { outline: 2px solid currentColor; outline-offset: 2px; }
.diagnosis-demo .condition:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
.diagnosis-demo .condition::after { content: ""; position: absolute; right: -20px; top: 50%; width: 20px; height: 1px; background: #9eac98; }
.diagnosis-demo .condition small { display: block; font-size: 10px; margin-top: 5px; overflow-wrap: anywhere; }
.diagnosis-demo .condition.blocked { color: var(--amber); border-color: #b99c68; background: var(--amber-wash); }
.diagnosis-demo .condition.unknown { border-style: dashed; background: #f5f0e5; color: #715427; }
.diagnosis-demo .signal-value { white-space: nowrap; font-size: 13px; }
.diagnosis-demo .signal-value > span { display: inline-block; margin-right: 3px; }
.diagnosis-demo .logic-join { position: relative; display: flex; justify-content: center; align-items: center; height: 180px; }
.diagnosis-demo .logic-join::before { content: ""; position: absolute; left: 19px; top: 0; bottom: 0; width: 1px; background: #9eac98; }
.diagnosis-demo .logic-join::after { content: ""; position: absolute; left: 19px; right: 0; top: 50%; height: 1px; background: #9eac98; }
.diagnosis-demo .logic-join span { position: relative; z-index: 1; background: #f6f5ef; border: 1px solid #9eac98; width: 42px; height: 42px; border-radius: 50%; font-size: 9px; line-height: 1.3; display: grid; align-content: center; text-align: center; }
.diagnosis-demo .permit { padding: 17px 10px; border: 1px solid #b99c68; border-left: 3px solid var(--amber); background: var(--amber-wash); }
.diagnosis-demo .permit > span, .diagnosis-demo .permit small { display: block; font-size: 11px; color: var(--amber); }
.diagnosis-demo .permit strong { display: block; color: var(--ink); font: 500 27px/1.3 "IA Foundry Display",sans-serif; margin: 8px 0; }
.diagnosis-demo .trace-caption { font-size: 14px; margin-top: 28px; color: var(--muted); max-width: 52ch; }
.diagnosis-demo .evidence-sheet { padding: 28px; background: #e8ebe0; border-left: 1px solid var(--line); min-width: 0; }
.diagnosis-demo .sheet-heading { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--muted); margin-bottom: 24px; }
.diagnosis-demo .evidence-sheet > p { margin-top: 18px; color: var(--muted); font-size: 15px; }
.diagnosis-demo pre { margin: 23px 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 12px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace; color: var(--muted); }
.diagnosis-demo pre span { display: inline-block; width: 100%; padding: 0 7px; }
.diagnosis-demo .code-selected { background: #d3ddc9; color: var(--ink); border-left: 2px solid var(--green); }
.diagnosis-demo .source-record { font-size: 12px; margin: 0; }
.diagnosis-demo .source-record > div { display: flex; justify-content: space-between; gap: 15px; padding: 8px 0; border-top: 1px solid #c4cebc; }
.diagnosis-demo .source-record dt { color: var(--muted); }
.diagnosis-demo .source-record dd { margin: 0; text-align: right; }
.diagnosis-demo .scope-note { color: var(--muted); font-size: 13px; margin-top: 22px; }
.diagnosis-demo .report { padding: 32px; background: var(--green); color: var(--paper); }
.diagnosis-demo .report-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; font-size: 12px; color: #d1decd; margin-bottom: 29px; }
.diagnosis-demo .report-state { padding-bottom: 4px; border-bottom: 1px solid #a5ba9e; }
.diagnosis-demo .report > p { margin-top: 22px; color: #e0e7d9; font-size: 16px; }
.diagnosis-demo .finding-list { margin: 26px 0 0; }
.diagnosis-demo .finding-list div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; border-top: 1px solid #779273; padding: 17px 0; font-size: 14px; }
.diagnosis-demo .finding-list dt { color: #d1decd; }
.diagnosis-demo .finding-list dd { margin: 0; }
.diagnosis-demo .handover { padding: 36px 28px; }
.diagnosis-demo .handover > p { color: var(--muted); font-size: 16px; margin-top: 20px; }
.diagnosis-demo .work-boundary { padding-top: 25px; margin-top: 28px; border-top: 1px solid var(--line); }
.diagnosis-demo .work-boundary h4 { margin: 0 0 12px; font-size: 15px; font-weight: 500; }
.diagnosis-demo .work-boundary p { font-size: 15px; color: var(--muted); }
.diagnosis-demo .walkthrough-footer { border-top: 1px solid var(--line); padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.diagnosis-demo .walkthrough-footer > p { color: var(--muted); font-size: 12px; }
.diagnosis-demo .step-controls { display: flex; align-items: center; gap: 18px; }
.diagnosis-demo .back-step { background: none; border: 0; min-height: 44px; color: var(--green); padding: 8px; font-size: 14px; }
.diagnosis-demo .back-step:disabled { opacity: .5; }
.diagnosis-demo .concept-note { padding: 22px 48px 36px; font-size: 13px; color: var(--muted); }
.diagnosis-demo .no-script { padding: 24px; }
@media (max-width: 1100px) {
  .diagnosis-demo .scene-panel { grid-template-columns: 1fr; min-height: 0; }
  .diagnosis-demo .incident-story, .diagnosis-demo .evidence-sheet { border-left: 0; border-top: 1px solid var(--line); }
  .diagnosis-demo .logic-map { max-width: 680px; }
  .diagnosis-demo .machine { max-width: 620px; }
}
@media (max-width: 700px) {
  .diagnosis-demo .example-heading { padding: 35px 24px; }
  .diagnosis-demo .example-heading h1 { font-size: 43px; }
  .diagnosis-demo .lead { font-size: 16px; }
  .diagnosis-demo .walkthrough { margin: 0 20px; }
  .diagnosis-demo .example-context { display: block; padding: 14px 18px; }
  .diagnosis-demo .example-context p { margin-top: 6px; }
  .diagnosis-demo .steps button { display: block; padding: 16px 12px; font-size: 13px; }
  .diagnosis-demo .step-number { display: block; margin-bottom: 10px; font-size: 22px; }
  .diagnosis-demo .steps small { display: none; }
  .diagnosis-demo .evidence-choice { padding: 13px 18px; gap: 0 20px; }
  .diagnosis-demo .evidence-choice legend { float: none; padding-top: 18px; margin-right: 0; line-height: 1.5; }
  .diagnosis-demo .scene h2 { font-size: 33px; }
  .diagnosis-demo .incident-visual, .diagnosis-demo .trace-visual, .diagnosis-demo .report { padding: 26px 20px; }
  .diagnosis-demo .incident-story, .diagnosis-demo .evidence-sheet, .diagnosis-demo .handover { padding: 28px 20px; }
  .diagnosis-demo .logic-map { grid-template-columns: minmax(0,1fr) 40px 94px; }
  .diagnosis-demo .condition { padding: 11px 9px; font-size: 12px; gap: 6px; }
  .diagnosis-demo .logic-join span { width: 34px; height: 34px; font-size: 8px; }
  .diagnosis-demo .logic-join::before { left: 17px; }
  .diagnosis-demo .permit { padding: 14px 8px; }
  .diagnosis-demo .permit strong { font-size: 24px; }
  .diagnosis-demo .finding-list div { grid-template-columns: 1fr; gap: 7px; }
  .diagnosis-demo .walkthrough-footer { flex-direction: column; align-items: stretch; gap: 16px; padding: 18px; }
  .diagnosis-demo .step-controls { justify-content: space-between; gap: 10px; }
  .diagnosis-demo .step-controls .button { padding-inline: 14px; font-size: 13px; }
  .diagnosis-demo .concept-note { padding: 22px 24px; }
}
@media (max-width: 440px) {
  .diagnosis-demo .example-heading h1 { font-size: 36px; }
  .diagnosis-demo .walkthrough { margin-inline: 10px; }
  .diagnosis-demo .scene-title { display: block; }
  .diagnosis-demo .state-label { display: inline-block; margin-top: 16px; }
  .diagnosis-demo .logic-map { grid-template-columns: 1fr; }
  .diagnosis-demo .condition { padding: 14px; font-size: 14px; }
  .diagnosis-demo .condition small { font-size: 11px; }
  .diagnosis-demo .condition::after { right: -10px; width: 10px; }
  .diagnosis-demo .conditions { border-right: 1px solid #9eac98; padding-right: 10px; }
  .diagnosis-demo .logic-join { height: 64px; }
  .diagnosis-demo .logic-join::before { left: 50%; top: 0; bottom: 0; }
  .diagnosis-demo .logic-join::after { top: 0; left: 50%; right: 0; }
  .diagnosis-demo .logic-join span { width: 42px; height: 42px; font-size: 9px; }
  .diagnosis-demo .permit { text-align: center; }
  .diagnosis-demo .permit strong { margin-block: 5px; }
  .diagnosis-demo .event-list li { grid-template-columns: 59px 1fr; gap: 16px; }
  .diagnosis-demo .event-list li::before { left: 64px; }
}