* { box-sizing: border-box; }
:root { font-family: Arial, Helvetica, sans-serif; color: #172327; background: #f4f5f2; font-synthesis: none; }
body { margin: 0; }
button { font: inherit; cursor: pointer; }
button:focus-visible { outline: 3px solid #d25a00; outline-offset: 4px; }
.sample { max-width: 1320px; min-height: 100svh; margin: auto; display: flex; flex-direction: column; background: #fafaf7; }
.sample-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 30px; border-bottom: 1px solid #dfe4e1; }
.sample-brand { font-size: 25px; font-weight: 800; letter-spacing: -1px; white-space: nowrap; }
.sample-brand > span { color: #f77b13; }
.sample-brand small { margin-left: 12px; font-size: 9px; letter-spacing: 2px; vertical-align: middle; color: #526163; }
.demo-label { padding: 6px 10px; border: 1px solid #d9ded8; border-radius: 20px; font-size: 10px; white-space: nowrap; color: #586665; }
.sample-body { flex: 1; display: grid; grid-template-columns: 1.1fr .9fr; }
.scenario-copy { padding: clamp(22px, 4vw, 50px); }
.eyebrow { margin: 0 0 13px; color: #a64a04; font-weight: 700; font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(26px, 3.7vw, 47px); line-height: 1.06; letter-spacing: -1.5px; }
.intro { max-width: 45ch; font-size: 14px; line-height: 1.65; color: #526163; margin: 18px 0; }
.choices { display: grid; gap: 9px; }
.choices button { display: flex; align-items: center; gap: 10px; padding: 12px; text-align: left; background: #fff; border: 1px solid #dce2dd; border-radius: 10px; font-size: 12px; color: #263b3a; }
.choices button > span { display: grid; place-items: center; width: 26px; height: 26px; flex-shrink: 0; border-radius: 7px; background: #f1f3ef; font-weight: 700; }
.choices button > b { margin-left: auto; font-weight: 400; color: #8c9690; }
.choices button:hover, .choices button[aria-pressed="true"] { border-color: #e98837; background: #fff4e8; }
.feedback { margin-top: 18px; border-left: 3px solid #f7a249; padding: 3px 0 3px 13px; font-size: 13px; }
.feedback p { margin: 6px 0 0; font-size: 12px; line-height: 1.6; color: #526163; }
.reset { padding: 8px 0; margin-top: 10px; border: 0; background: transparent; color: #735135; font-size: 12px; }
.scenario-scene { position: relative; overflow: hidden; min-height: 300px; background: #163a3d; }
.scenario-scene > img { width: 100%; height: 100%; position: absolute; object-fit: cover; opacity: .35; }
.scenario-scene::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg,#0c272bdf,transparent); pointer-events: none; }
.scene-caption { position: absolute; top: 28px; left: 24px; z-index: 1; display: flex; align-items: center; gap: 8px; color: #fff; font-size: 11px; }
.scene-dot { width: 7px; height: 7px; border-radius: 50%; background: #ffc877; }
.decision-card { position: absolute; bottom: 12%; left: 10%; right: 8%; z-index: 1; color: #fff; }
.decision-card > span { color: #c3d1c6; font-size: 9px; letter-spacing: 2px; }
.decision-card strong { display: block; margin: 15px 0 30px; font-size: clamp(25px,3.5vw,43px); line-height: 1.12; font-weight: 500; letter-spacing: -1px; }
.decision-path { display: flex; align-items: center; }
.decision-path i { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid #91a79a; color: #d1d9d0; font-size: 10px; font-style: normal; }
.decision-path i:first-child { background: #ffbd70; border-color: #ffbd70; color: #263b3a; }
.decision-path b { height: 1px; flex: 1; max-width: 55px; background: #799c91; }
.sample-footer { display: flex; justify-content: space-between; gap: 12px; padding: 15px 30px; margin-top: auto; border-top: 1px solid #dfe4e1; color: #64716e; font-size: 10px; line-height: 1.5; }
.explorer-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 25px 30px; }
.explorer-heading h1 { font-size: clamp(24px,3vw,36px); }
.explorer-count { font-size: 11px; white-space: nowrap; padding: 8px 12px; border-radius: 20px; background: #e7ece5; color: #395442; }
.equipment-scene { position: relative; margin: 0 30px; min-height: 180px; aspect-ratio: 2.6; overflow: hidden; border-radius: 14px; background: #21323b; }
.equipment-scene > img { position: absolute; width: 100%; height: 100%; object-fit: cover; }
.hotspot { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%,-50%); display: grid; place-items: center; width: 40px; height: 40px; border: 3px solid #fff; border-radius: 50%; background: #ff8315; color: #172327; box-shadow: 0 0 0 7px #ff9e2e42,0 4px 15px #0003; font-size: 13px; font-weight: 700; }
.hotspot:hover, .hotspot[aria-pressed="true"] { background: #fff; border-color: #ff8315; }
.hotspot.is-visited:not([aria-pressed="true"]) { background: #224e40; color: #fff; }
.scene-hint { position: absolute; bottom: 12px; left: 16px; padding: 7px 10px; border-radius: 5px; background: #13292ade; color: #fff; font-size: 10px; }
.explorer-detail { display: flex; align-items: center; gap: 15px; padding: 22px 30px; }
.detail-number { flex-shrink: 0; display: grid; place-items: center; width: 40px; height: 40px; background: #fff0df; color: #a54b0d; border-radius: 12px; }
.explorer-detail h2 { font-size: 17px; margin: 0 0 7px; }
.explorer-detail p { font-size: 12px; line-height: 1.6; color: #526163; margin: 0; }
.explorer-detail .reset { margin-left: auto; flex-shrink: 0; }
/* The compact card is a working activity, with feedback visible beside the controls. */
.preview-mode .sample { height: 100svh; min-height: 0; overflow: hidden; }
.preview-mode .sample-header { flex: 0 0 auto; padding: 9px 16px; }
.preview-mode .sample-brand { font-size: 19px; }
.preview-mode .sample-brand small { font-size: 7px; letter-spacing: 1px; }
.preview-mode .demo-label { font-size: 8px; padding: 4px 7px; }
.preview-mode .sample-body { min-height: 0; }
.preview-mode .scenario-copy { padding: 16px; }
.preview-mode .eyebrow { font-size: 8px; margin-bottom: 9px; letter-spacing: 1px; }
.preview-mode h1 { font-size: clamp(18px,4vw,25px); letter-spacing: -.8px; }
.preview-mode .intro { font-size: 11px; line-height: 1.4; margin: 10px 0; }
.preview-mode .sample-footer { display: none; }
.preview-mode .choices { margin-top: 10px; gap: 6px; }
.preview-mode .choices button { min-height: 36px; font-size: 10px; padding: 7px; gap: 6px; border-radius: 6px; }
.preview-mode .choices button > span { width: 18px; height: 18px; font-size: 9px; border-radius: 4px; }
.preview-mode .scenario-scene { min-height: 0; }
.preview-mode .scene-caption { top: 18px; left: 16px; font-size: 9px; }
.preview-mode .decision-card { top: 50px; bottom: auto; left: 16px; right: 16px; }
.preview-mode .feedback { margin: 0; padding: 0 0 0 11px; }
.preview-mode .feedback strong { display: block; margin: 0 0 10px; color: #fff; font-size: clamp(17px,3.4vw,22px); font-weight: 600; line-height: 1.15; letter-spacing: -.5px; }
.preview-mode .feedback p { color: #e8efeb; font-size: 12px; line-height: 1.5; }
.preview-mode .decision-card .reset { display: inline-block; min-height: 32px; margin-top: 14px; color: #ffd8a7; }
.preview-mode .explorer-heading { flex: 0 0 auto; padding: 12px 16px; gap: 10px; }
.preview-mode .explorer-heading h1 { font-size: clamp(17px,3.4vw,23px); letter-spacing: -.6px; }
.preview-mode .explorer-count { font-size: 9px; padding: 6px 8px; }
.preview-mode .equipment-scene { margin: 0 14px; flex: 1; min-height: 90px; aspect-ratio: auto; border-radius: 9px; }
.preview-mode .scene-hint { display: none; }
.preview-mode .hotspot { width: 34px; height: 34px; font-size: 11px; border-width: 2px; box-shadow: 0 0 0 5px #ff9e2e42; }
.preview-mode .explorer-detail { flex: 0 0 auto; gap: 9px; padding: 12px 16px; }
.preview-mode .detail-number { width: 24px; height: 24px; border-radius: 7px; font-size: 11px; }
.preview-mode .explorer-detail h2 { font-size: 13px; margin-bottom: 4px; }
.preview-mode .explorer-detail p { font-size: 11px; line-height: 1.4; }
.preview-mode .explorer-detail .reset { margin: 0 0 0 auto; min-height: 32px; font-size: 10px; }
@media (max-width: 600px) {
  html:not(.preview-mode) .sample-body { grid-template-columns: 1fr; }
  html:not(.preview-mode) .scenario-scene { display: none; }
  .sample-header { padding: 14px 18px; }
  .sample-brand small { font-size: 8px; margin-left: 7px; }
  .sample-footer { padding: 14px 20px; }
  .sample-progress { display: none; }
  .explorer-heading { padding: 22px 20px; flex-wrap: wrap; }
  .equipment-scene { margin: 0 16px; aspect-ratio: 1.4; }
  .explorer-detail { padding: 22px 20px; flex-wrap: wrap; }
  .explorer-detail > div { flex: 1; }
  .explorer-detail .reset { margin: 0 0 0 55px; }
}
@media (max-width: 410px) {
  .preview-mode .sample-brand small { display: none; }
  .preview-mode .sample-body { grid-template-columns: 1.1fr .9fr; }
  .preview-mode .scenario-copy { padding: 14px 10px; }
  .preview-mode .choices { margin-top: 9px; gap: 5px; }
  .preview-mode .choices button { min-height: 40px; font-size: 10px; padding: 5px; }
  .preview-mode .choices button > b { display: none; }
  .preview-mode .scene-caption { top: 16px; left: 12px; right: 12px; font-size: 8px; }
  .preview-mode .decision-card { top: 49px; left: 10px; right: 10px; }
  .preview-mode .feedback { padding-left: 9px; }
  .preview-mode .feedback p { font-size: 11px; }
  .preview-mode .explorer-count { display: inline-block; }
  .preview-mode .explorer-heading { padding: 10px 14px; }
  .preview-mode .explorer-heading .eyebrow { margin-bottom: 5px; }
  .preview-mode .explorer-detail { padding: 10px 12px; flex-wrap: nowrap; }
}

@media (min-width: 601px) {
  html:not(.preview-mode) .equipment-scene { max-height: max(180px, calc(100svh - 320px)); }
}

/* Narrow desktop cards use a compact activity and a feedback strip beneath it. */
@media (max-width: 300px) {
  .preview-mode .sample-header { padding: 6px 12px; }
  .preview-mode .sample-body { grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .preview-mode .scenario-copy { padding: 10px 12px; }
  .preview-mode .scenario-copy .eyebrow { display: none; }
  .preview-mode h1 { font-size: 15px; letter-spacing: -.4px; }
  .preview-mode .intro { font-size: 10px; margin: 6px 0; }
  .preview-mode .choices { gap: 4px; margin-top: 8px; }
  .preview-mode .choices button { min-height: 32px; padding: 5px 7px; }
  .preview-mode .scenario-scene { min-height: 58px; }
  .preview-mode .scenario-scene > img, .preview-mode .scene-caption { display: none; }
  .preview-mode .decision-card { position: relative; inset: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; }
  .preview-mode .feedback { padding-left: 8px; }
  .preview-mode .feedback strong { font-size: 13px; margin: 0; line-height: 1.25; letter-spacing: -.2px; }
  .preview-mode .feedback p { display: none; }
  .preview-mode .decision-card .reset { flex-shrink: 0; margin: 0; font-size: 10px; }
  .preview-mode .explorer-heading { padding: 10px 12px; gap: 6px; }
  .preview-mode .explorer-heading h1 { font-size: 15px; }
  .preview-mode .explorer-heading .eyebrow { display: none; }
  .preview-mode .explorer-count { font-size: 8px; padding: 4px 7px; }
  .preview-mode .equipment-scene { margin-inline: 10px; min-height: 80px; }
  .preview-mode .hotspot { width: 30px; height: 30px; }
  .preview-mode .explorer-detail { gap: 7px; padding: 10px; }
  .preview-mode .explorer-detail h2 { font-size: 11px; }
  .preview-mode .explorer-detail p { font-size: 10px; }
  .preview-mode .explorer-detail .detail-number { display: none; }
}