.hidden{display:none!important}.presentation{border:1px solid #ffffff30;border-radius:8px;overflow:hidden;background:#091e50;box-shadow:0 18px 50px #0002}.slide-top{display:flex;justify-content:space-between;padding:13px 23px;border-bottom:1px solid #ffffff24;color:#c9d8f6;font-size:11px;letter-spacing:1px;text-transform:uppercase}.teaching-slide{min-height:390px;display:grid;grid-template-columns:1fr 1fr;position:relative;background:radial-gradient(ellipse at 85% 20%,#244caa,#102c77 65%)}.slide-copy{padding:34px 28px 32px 34px;position:relative;z-index:1}.slide-copy h2{font:normal clamp(28px,3vw,43px)/1.16 var(--serif);letter-spacing:-.6px;margin:20px 0 28px}.slide-copy ul{padding:0;margin:0;list-style:none;max-width:480px}.slide-copy li{font-size:17px;margin:17px 0;padding-left:21px;position:relative;line-height:1.6}.slide-copy li:before{content:'';width:5px;height:5px;background:#ffac67;position:absolute;left:0;top:11px}.slide-visual{min-width:0;display:flex;align-items:center;justify-content:center;padding:25px 26px 25px 0}.slide-photo{height:100%;min-height:320px;width:100%;background:linear-gradient(90deg,#12327a88,transparent),url('/assets/freight-dawn.png') 72% center/cover;border-radius:5px}.concept-flow{width:100%;display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px}.concept-node{display:flex;gap:15px;align-items:center;width:100%;max-width:320px;min-height:58px;background:#081c49a6;border:1px solid #6d95e080;border-radius:5px;padding:13px 17px}.concept-node span{display:grid;place-items:center;width:28px;height:28px;border:1px solid #e6a066;border-radius:50%;color:#ffb87d;flex-shrink:0;font-size:12px}.concept-node strong{font-weight:500;font-size:14px;line-height:1.5}.concept-connector{transform:rotate(90deg);font-size:19px;line-height:1;color:#ffb87d}.map-flow{background:radial-gradient(ellipse at 55% 50%,#4268b12e,transparent 70%);border:1px dashed #8aa8e74a;border-radius:50%;padding:32px}.slide-paper{background:#fffaf0;color:#193455;transform:rotate(-2deg);border-radius:2px;padding:25px 22px;box-shadow:0 15px 40px #0004;width:100%;max-width:350px}.paper-heading{font:700 9px/1.5 var(--sans);letter-spacing:1px;color:#46617b;border-bottom:2px solid #d7782c;padding-bottom:15px}.paper-row{display:flex;align-items:start;gap:12px;font-size:14px;padding:18px 0;border-bottom:1px solid #b9c8d9}.paper-row b{color:#bc601b;font-size:11px}.paper-foot{color:#5f7188;font-size:9px;padding-top:20px}.scenario-note{font-size:11px;color:#bdd0f5;border-top:1px solid #ffffff30;padding-top:18px;margin-top:25px}.narration-area{background:#071941;padding:19px 23px;border-top:1px solid #ffffff26}.narration-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.narration-controls button{font-size:12px;padding:8px 12px}.caption-toggle{font-size:12px;display:flex;align-items:center;gap:7px;margin-left:auto}.caption-toggle input{accent-color:#ffac67}.narration-area audio{width:100%;margin-top:16px}.lesson-caption{min-height:52px;padding:16px 10px 0;text-align:center;font-size:17px;line-height:1.7;color:#e3ecff;max-width:800px;margin:auto}.lesson-caption .speaking{color:#ffb471;text-decoration:underline;text-underline-offset:4px}.recording-note{margin:13px 0 0;font-size:11px;color:#aebfdf}.slide-transcript{background:#102c62;padding:20px 24px;margin-top:18px;border-radius:4px}.slide-transcript h3{font-size:13px;color:#ffc18a;margin-bottom:10px}.slide-transcript p{font-size:16px;line-height:1.9;margin:0}.slide-navigation{display:flex;gap:12px;align-items:center;padding:17px 23px;background:#0c2459;border-top:1px solid #ffffff1a}.slide-navigation label{font-size:11px;color:#b9cbed;flex-shrink:0}.slide-navigation select{max-width:450px;width:100%;min-width:0;background:#071d4c;color:white;border:1px solid #ffffff3b;border-radius:4px;padding:8px;font-size:12px}.slide-navigation button{margin-left:auto;white-space:nowrap;font-size:11px;padding:8px 11px}
@media(max-width:1150px){.teaching-slide{grid-template-columns:1.1fr .9fr}.slide-copy{padding:28px 22px}.slide-copy h2{font-size:31px}.slide-copy li{font-size:15px}.slide-visual{padding-right:18px}.concept-node{padding:11px;font-size:12px}.concept-node strong{font-size:12px}.slide-paper{padding:20px 16px}.paper-row{font-size:12px}}
@media(max-width:760px){.teaching-slide{grid-template-columns:1fr;min-height:0}.slide-copy{padding:26px 23px 10px}.slide-copy h2{font-size:31px;margin:14px 0 22px}.slide-copy ul{max-width:none}.slide-copy li{margin:11px 0;font-size:15px}.slide-visual{padding:12px 22px 26px}.slide-photo{min-height:200px;max-height:240px}.concept-flow{padding:8px;gap:7px}.concept-node{max-width:none;min-height:48px;padding:10px 14px}.concept-node strong{font-size:13px}.slide-paper{max-width:none;transform:none}.paper-row{font-size:13px;padding:12px 0}.map-flow{border-radius:7px;padding:20px}.narration-area{padding:16px}.narration-controls{gap:8px}.narration-controls button{font-size:11px;padding:8px}.caption-toggle{margin-left:0}.lesson-caption{font-size:15px}.slide-navigation{padding:15px;flex-wrap:wrap}.slide-navigation select{max-width:none;flex:1}.slide-navigation button{margin-left:0}.slide-top{font-size:9px;padding:12px 16px;gap:15px}}
@media print{.presentation{display:none!important}.reading.hidden{display:block!important}}

.inspection-illustration{width:100%;padding:20px;border:1px solid #5e7fa9;border-radius:10px;background:#0b2049}.inspection-illustration svg{display:block;width:100%;height:auto}.inspection-key{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:12px}.inspection-key b{display:inline-grid;place-items:center;background:#b8561a;color:white;border-radius:50%;width:20px;height:20px}.inspection-illustration .small{margin:18px 0 0;font-size:12px;line-height:1.5}

[data-visual-point]{transition:background-color .2s,color .2s,border-color .2s}.slide-copy li.is-speaking-point{color:#ffd09e;background:#ff9b4a18;border-radius:5px;outline:1px solid #ff9b4a60;padding:8px 10px;margin-left:-10px}.concept-node.is-speaking-point,.paper-row.is-speaking-point{border-color:#ffb271;background:#a44b20;color:#fff}.paper-row.is-speaking-point span{color:white}@media(prefers-reduced-motion:reduce){[data-visual-point]{transition:none}}

.component-photo{margin:0;width:100%}.component-photo img{display:block;width:100%;height:420px;object-fit:contain;background:#07152c}.component-photo figcaption{font:12px/1.6 Arial,sans-serif;color:#d8e5ff;margin-top:10px}.component-photo a{color:#ffbb80}

.duty-timeline{width:100%;background:#0b2049;padding:20px;border:1px solid #6686ba;border-radius:8px}.duty-timeline svg{width:100%;height:auto}.duty-events{font-size:12px;display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;padding-left:22px}.duty-events b{color:#ffbd85}.duty-timeline .small{font-size:12px;line-height:1.5}@media(max-width:650px){.duty-events{grid-template-columns:1fr}}

.research-ledger{border:1px solid #6d8fc3;background:#0b2049;border-radius:10px;padding:20px}.research-ledger table{border-collapse:collapse;width:100%;font:14px/1.55 Arial,sans-serif;color:#e8efff}.research-ledger th,.research-ledger td{padding:14px 10px;text-align:left;border-bottom:1px solid #58729b;vertical-align:top}.research-ledger thead{color:#ffc28b}.research-ledger tbody th{width:27%;color:white}.research-ledger p{font:12px/1.6 Arial,sans-serif;color:#d2e3ff;margin-top:18px}.research-ledger tr.is-speaking-detail{background:#97491e;outline:2px solid #ffb16d;outline-offset:-2px}@media(max-width:650px){.research-ledger{padding:12px}.research-ledger th,.research-ledger td{padding:10px 6px;font-size:12px}}

.pretrip-visual{display:block;width:100%;min-width:0}.pretrip-visual>.inspection-illustration+.inspection-illustration{margin-top:16px}.inspection-illustration.pretrip-case{background:#f7f4ec;color:#102553}.inspection-illustration.pretrip-case .paper-heading{color:#102553;font-size:12px}.inspection-illustration:not(.pretrip-case)>.paper-heading{color:#e1e9ff;font-size:12px}.inspection-illustration.pretrip-case .muted{color:#344c69}

.pretrip-case>summary{font-weight:700;cursor:pointer;color:#102553;line-height:1.5}.pretrip-case[open]>summary{padding-bottom:12px;border-bottom:2px solid #d7782c}

/* t608 stable-layout narration highlight: no padding/margin/border-width change while speaking; ring drawn with box-shadow (paint only). */
.slide-copy li.is-speaking-point{padding:0 0 0 21px;margin-left:0;outline:none;border-radius:5px;background:#ff9b4a18;box-shadow:0 0 0 6px #ff9b4a18,0 0 0 7px #ff9b4a60}

/* Between slides: tell the student more is coming, so a pause doesn't feel like the end */
.teaching-slide{position:relative}.up-next{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:5;display:flex;flex-direction:column;gap:2px;align-items:center;text-align:center;max-width:calc(100% - 24px);background:#081a46f0;color:#f6f7ff;border:1px solid #ff9b4a88;border-radius:12px;padding:10px 18px 12px;box-shadow:0 8px 24px #0008;overflow:hidden}.up-next span{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#ff9b4a;font-weight:700}.up-next b{font-size:15px}.up-next i{position:absolute;left:0;bottom:0;height:3px;width:100%;background:#ff9b4a;transform-origin:left;animation:upnext linear forwards}.up-next.done{border-color:#7ee0b888}.up-next.done span{color:#7ee0b8}@keyframes upnext{from{transform:scaleX(0)}to{transform:scaleX(1)}}@media (prefers-reduced-motion:reduce){.up-next i{animation:none;transform:scaleX(1)}}
/* Pause and decide: the answer waits until the student decides */
.is-held{visibility:hidden;position:relative}
.slide-copy li.is-held{display:none}
.decide-note{margin:10px 0 0;padding:8px 12px;border:1px dashed #ffffff40;border-radius:6px;color:#ffffffa0;font-size:.9em;font-style:italic}
.decide-gate{margin-top:14px;padding:14px 16px;border:1px solid #ff9b4a80;border-radius:8px;background:#ff9b4a14}
.decide-gate p{margin:0 0 10px}
.decide-gate button{width:100%;max-width:340px}
.decide-hidden{opacity:.7}
.concept-node.is-held,.paper-row.is-held{visibility:visible;border-style:dashed;background:transparent}
.concept-node.is-held>*,.paper-row.is-held>*{visibility:hidden}
/* Phones: the moving picture first, the play controls right under it, the written points after. Step tabs stay on one swipeable row. */
@media(max-width:760px){.presentation{display:flex;flex-direction:column}.slide-top{order:0}.teaching-slide{display:contents}.slide-visual{order:1;padding:8px}.narration-area{order:2}.slide-copy{order:3;padding:18px 20px 14px}.slide-navigation{order:4}.up-next{position:static;transform:none;order:2;margin:8px auto;max-width:calc(100% - 24px)}.tabs{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto;gap:4px;-webkit-overflow-scrolling:touch}.tabs button{flex:0 0 auto;white-space:nowrap}}

/* Full-width picture on a computer screen: picture first, written points under it. */
@media(min-width:761px){.teaching-slide.wide-scene{grid-template-columns:minmax(0,1fr)!important}.teaching-slide.wide-scene .slide-visual,.teaching-slide.wide-scene .slide-visual:has(.live-scene){order:1;padding:14px 18px 6px!important}.teaching-slide.wide-scene .slide-copy{order:2;padding:18px 34px 26px}.teaching-slide.wide-scene .slide-copy h2{font-size:30px;margin:8px 0 12px}.teaching-slide.wide-scene .live-scene{aspect-ratio:16/8.6}}