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@media(pointer:coarse),(max-width:800px){button,select{min-height:44px}input[type=range]{min-height:44px}}

.intro{margin-bottom:22px}h1{font-size:36px}main{padding-top:26px}#visualAnswer{border-top:1px solid #d6d9d2;background:#fcfbf7;padding:18px 20px}#visualAnswer[hidden],#beltDiagram[hidden],#dimensionDiagram[hidden],#requirementCard[hidden]{display:none}.diagram-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:14px}.diagram-heading button{font-size:11px}.diagram-label{font-family:Arial,sans-serif;font-size:13px;fill:#475c48}.dimension-label{font-family:Arial,sans-serif;font-size:15px;fill:#7f4328}.diagram-note{font-size:11px;line-height:1.65;color:#75796e;margin:4px 0 8px}#visualAnswer svg{width:100%;display:block;max-height:290px}.outline-key{display:flex;gap:24px;font-size:10px;margin-top:14px;color:#7d725f}#changeStrip{font-size:12px;border-top:1px solid #dedfd5;margin-top:12px;padding-top:12px;line-height:1.7;color:#a34b27}.checkpoints{display:flex;flex-wrap:wrap;gap:6px}.checkpoints button{font-size:11px;padding:8px}#requirementCard{margin-top:22px;border-top:1px solid #ddd;padding-top:8px}#requirementCard h3{font-size:17px;font-weight:500}#requirementCard h4{font-size:11px;margin:18px 0 8px;color:#68705d;text-transform:uppercase;letter-spacing:.6px}#requirementCard ul{padding-left:17px;font-size:12px;line-height:1.65;margin:0}#nextInput{font-size:13px;line-height:1.5;color:#8e4c29}.source summary{cursor:pointer;font-size:12px;color:#6d7266}.source p{font-size:11px}.source>div{margin-top:10px}body.has-answer #viewer{height:280px}#movingCarton{animation:carry 5s linear infinite}.belt-flow{animation:beltPulse 1s linear infinite}#visualAnswer.paused *{animation-play-state:paused!important}@keyframes carry{from{transform:translateX(-60px)}to{transform:translateX(190px)}}@keyframes beltPulse{0%,100%{opacity:.55}50%{opacity:1}}@media(prefers-reduced-motion:reduce){#movingCarton,.belt-flow{animation:none}}@media(max-width:800px){h1{font-size:31px}#visualAnswer{padding:15px 12px}.diagram-heading{font-size:12px}.outline-key{gap:9px;font-size:9px}#visualAnswer svg{min-height:200px}body.has-answer #viewer{height:230px}.source{margin-bottom:17px}}
@media(max-width:800px){.dimension-label{font-size:24px}.diagram-label{font-size:21px}}
#sampleBanner{padding:13px 18px;background:#fff2d7;border:1px solid #d5b778;display:flex;gap:20px;align-items:center;justify-content:space-between;font-size:12px;margin-bottom:14px}#sampleBanner[hidden]{display:none}#focusBadge{position:absolute;z-index:2;top:12px;left:14px;background:#fffdf5;padding:8px 12px;border-left:3px solid #a65b2d;font-size:12px;pointer-events:none}.linked-controls{display:flex;gap:9px;margin-top:12px}.linked-controls button{font-size:12px}.linked-active{stroke:#bd5425;stroke-width:3px;filter:drop-shadow(0 0 3px #e7ae6f)}button.linked-active{background:#f7e5c8;color:#793b19;border-color:#ac6c38;filter:none}#linkedNote{font-size:11px;color:#746c5f;line-height:1.6}[data-link],[data-map]{cursor:pointer}#viewer canvas{position:relative;z-index:0}@media(max-width:800px){#sampleBanner{align-items:start;gap:9px}#sampleBanner button{font-size:11px}}
#sampleBanner{position:sticky;top:0;z-index:20;box-shadow:0 3px 9px #00000012}.preview-mode #visualAnswer{border-left:3px solid #c49337}.preview-mode #requirementCard{border-left:3px solid #c49337;padding-left:12px}

#showActual{margin:12px 0;width:100%;border-color:#a96340;color:#874024}#actualEvidence{margin:28px 0;border-top:1px solid #cbcbbf;border-bottom:1px solid #cbcbbf;padding:18px 0}#actualEvidence>summary,.internalParts>summary{cursor:pointer;min-height:44px;padding:12px 4px;color:#874024;font-weight:600}.mpe{--mpe-accent:#9b4527;--mpe-bg:#f6f5f1;--mpe-ink:#25312e;--mpe-muted:#647065;--mpe-rule:#d6d9d2}.mpe__header{padding-top:18px}.mpe__header h2{font-size:30px}.mpe__motion-grid{grid-template-columns:minmax(260px,.75fr) minmax(0,1.25fr)}.mpe__video-stage,.mpe__video-stage video{height:560px;min-height:0}.mpe__video-stage video{object-fit:contain}.mpe__diagram-stage{width:min(100%,400px);min-width:0;margin:auto}.mpe__diagram-stage>img{height:auto;object-fit:contain}.mpe aside{padding:20px;border-left:0}.mpe__header p{font-size:14px}.mpe__step-copy strong{font-size:15px}.mpe__media-grid{display:block}.mpe__diagram-scroll{overflow:visible}.mpe__readout{pointer-events:none}.mpe__hotspot,.mpe__jumps button{min-width:44px;min-height:44px}@media(max-width:800px){.mpe__motion-grid{grid-template-columns:1fr}.mpe__header{grid-template-columns:1fr;gap:12px}.mpe__video-stage,.mpe__video-stage video{height:470px}.mpe__header h2{font-size:25px}.mpe__diagram-stage{min-width:0}.mpe__hotspot{width:44px;height:44px}.mpe__detail-grid{grid-template-columns:1fr}}

.internalParts[open]{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:18px}.internalParts>summary,.internalParts>.mpe__source{grid-column:1/-1}.internalParts .mpe__media-grid{margin:0}.internalParts .mpe__detail-grid{display:block;margin:0}.mpe__diagram-stage{aspect-ratio:540/960;width:min(100%,340px)}.mpe__diagram-stage>img{height:100%}.mpe__diagram figcaption{display:block}.mpe__diagram figcaption span{display:block;text-align:left;margin-top:8px;line-height:1.5}@media(max-width:800px){.internalParts[open]{grid-template-columns:1fr}.mpe__diagram-stage{width:min(100%,340px)}}

.internalParts[open]{display:block}.internal-grid{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:18px}.internalParts .mpe__module-map ol{display:block}.internalParts .mpe__module-map li{border-right:0}.internalParts .mpe__proof{margin-top:16px}@media(max-width:800px){.internal-grid{grid-template-columns:1fr}}

#contactPanel{margin:20px 0;border:1px solid #ccd0c5;padding:16px}#contactPanel summary{cursor:pointer;min-height:44px;color:#874024;font-weight:600}#contactViewport{height:340px;background:#eae7df;width:100%;overflow:hidden}#contactViewport canvas{display:block;max-width:100%;touch-action:none}.contact-controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.contact-controls button{min-height:44px}.contact-progress{display:flex;align-items:center;gap:12px;margin-top:12px}.contact-progress input{flex:1;min-width:60px;min-height:44px}.contact-boundary,#contactStatus{font-size:12px;line-height:1.65;color:#686b61}#contactPanel h3{font-size:19px;font-weight:500}@media(max-width:800px){#contactViewport{height:270px}.contact-progress{font-size:12px;flex-wrap:wrap}.contact-progress input{width:100%}}

#guidedMachine{background:#eceee7;border:1px solid #d1d7ca;padding:18px;margin-bottom:20px}.guided-heading{display:flex;justify-content:space-between;gap:18px;align-items:start}.guided-heading h2{font-size:20px;margin:0}.guided-heading p{font-size:11px;line-height:1.6;max-width:340px;margin:0;color:#64705c}.guided-steps{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.guided-steps button{min-height:44px}.guided-steps [aria-current="step"]{background:#994728;color:#fff;border-color:#994728}#guidedStatus{font-size:12px;line-height:1.7;margin:12px 0 0;color:#666c5f}@media(max-width:800px){.guided-heading{display:block}.guided-heading p{margin-top:9px}.guided-steps{display:grid;grid-template-columns:1fr 1fr}.guided-steps button{font-size:11px;text-align:left}}

.playback-tools{display:flex;padding:8px 20px;gap:18px;align-items:center;border-top:1px solid #ddd;font-size:11px}.playback-tools select{min-height:44px}.playback-tools span{color:#777}.sealing-evidence{padding:22px 0;border-bottom:1px solid #ccc}.sealing-evidence h2{font-size:24px}.sealing-evidence>p{font-size:13px;line-height:1.7;max-width:850px}.annotation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.annotation-grid figure{margin:0}.annotation-grid img,.annotation-grid video{width:100%;height:440px;object-fit:contain;background:#e9e9e2}.annotation-grid figcaption{font-size:12px;line-height:1.6;padding-top:10px}#sealingPhases{border-top:1px solid #d9d9ce;border-bottom:1px solid #d9d9ce;padding:16px 0;margin:16px 0}#sealingPhases[hidden]{display:none}#sealingPhaseButtons{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:14px 0}#sealingPhaseButtons button{min-height:44px;font-size:11px;text-align:left}#sealingPhaseButtons button[aria-pressed="true"]{background:#9b4527;color:white}#sealingPhaseCopy{font-size:13px;line-height:1.7}.sealing-limit{font-size:11px;line-height:1.6;color:#736b5d}#sealingGrade{font-size:9px;max-width:140px;text-align:right}@media(max-width:800px){.annotation-grid{grid-template-columns:1fr}.annotation-grid img,.annotation-grid video{height:470px}.playback-tools{padding:8px 12px;gap:10px;flex-wrap:wrap}}

.sealing-detail{font-size:12px;line-height:1.65;margin:8px 0 18px}.sealing-detail summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center}.sealing-detail p{margin:10px 0}.sealing-limit{color:#65513e;font-size:12px}#sealingGrade{max-width:180px;font-size:10px}

.sealing-key{display:grid;gap:4px;font-size:11px;line-height:1.4;color:#516760;border-left:3px solid #007f78;padding-left:9px;margin:12px 0}
@media(min-width:1000px){.sealing-mode .workspace{grid-template-columns:minmax(0,1fr) 350px}.sealing-mode #viewer{height:430px}.sealing-mode aside{padding:24px}}
@media(min-width:1000px){.sealing-mode .workspace{grid-template-columns:1fr}.sealing-mode #viewer{height:430px}.sealing-mode aside{border-left:0;border-top:1px solid var(--line)}.sealing-mode #sealingPhaseButtons{grid-template-columns:repeat(5,1fr)}.sealing-mode #sealingPhaseCopy{max-width:760px}.sealing-mode .sealing-detail{max-width:900px}.sealing-mode #answerTitle,.sealing-mode #answer,.sealing-mode aside>.source{display:none}.sealing-mode #sealingPhases{margin-top:8px}}

.seal-view-key{display:none;margin:0;padding:8px 20px;background:#e8eeea;color:#335c56;font-size:11px;line-height:1.65}.sealing-mode .seal-view-key{display:block}

.text-fallback{padding:24px;max-width:720px;line-height:1.7}.text-fallback h3{margin-top:0}.sales-handoff{padding:28px 0;border-top:1px solid var(--line)}.sales-handoff a{display:inline-block;margin:8px 18px 8px 0;color:#98431e}.sales-handoff a[hidden]{display:none}button:disabled{opacity:.5;cursor:default}

.viewer-top>div{display:flex;gap:6px;flex-wrap:wrap}.viewer-top>div button{min-height:44px;font-size:11px}@media(max-width:600px){.viewer-top{flex-wrap:wrap;gap:8px}.viewer-top>div{width:100%}}

#viewer.text-only{height:auto;min-height:300px}.text-fallback{font-size:14px}