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var(--cyan);width:min(1280px,94vw);max-height:88dvh;color:var(--text);background:#091522;margin:auto;padding:27px;box-shadow:0 0 0 1px #0a1726,16px 16px #00000059}.deck-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#01070dd4}.dialog-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px;padding-bottom:18px;display:flex}.dialog-heading span{color:var(--cyan);font:700 .65rem var(--mono);letter-spacing:.12em}.dialog-heading h2{margin:6px 0 0;font-size:1.55rem}.dialog-heading button{border:1px solid var(--line);background:var(--panel);padding:9px 12px}.overview-phases{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:20px;display:grid}.overview-phases button{border:1px solid var(--line);background:var(--panel);text-align:left;flex-direction:column;gap:7px;padding:14px;display:flex}.overview-phases span{color:var(--cyan);font:700 .65rem var(--mono)}.overview-phases 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.deck-footer,:fullscreen .phase-rail{display:none!important}:fullscreen .deck-shell{height:100dvh;display:block}:fullscreen .slide-stage{height:100dvh;padding:clamp(32px,5vh,68px) clamp(40px,6vw,110px)}:fullscreen .speaker-notes{bottom:28px}@keyframes stage-in{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@keyframes reveal-in{0%{opacity:.2;transform:translateY(5px)}to{opacity:1;transform:none}}@keyframes pulse{50%{opacity:.35;box-shadow:0 0 3px var(--cyan)}}@media (max-width:1120px){.slide-content{grid-template-columns:minmax(0,1fr) 220px;gap:28px}.slide-heading h1{font-size:clamp(2.1rem,4.5vw,4rem)}.system-visual{min-height:280px}.system-cards{gap:10px}.system-card{min-height:160px;padding:17px}.overview-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:820px){body{overflow:auto}.deck-shell{grid-template-rows:auto minmax(0,1fr) auto;grid-template-columns:1fr;min-height:100dvh}.deck-header{grid-column:1;grid-template-columns:1fr auto;padding:12px 16px}.session-status,.deck-brand small,.phase-rail{display:none}.slide-stage{grid-area:2/1;padding:25px 18px}.slide-content{grid-template-columns:1fr;align-items:start}.slide-side{grid-template-columns:1fr 1fr;display:grid}.system-visual{min-height:230px}.time-card{flex-direction:column;justify-content:center;align-self:stretch;display:flex}.deck-footer{grid-area:3/1;gap:10px;padding:10px 14px}.elapsed,.reveal-status{display:none}.system-cards,.check-list,.options{grid-template-columns:1fr}.system-card{min-height:130px}.decision-panel{grid-template-columns:1fr}.decision-panel>p{grid-column:1}.overview-phases,.overview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.help-grid{grid-template-columns:1fr}.cover-slide .slide-heading:after{display:none}}@media (max-width:520px){.deck-brand b{font-size:.67rem}.brand-mark{width:35px;height:35px}.header-tools button{width:34px;height:34px}.header-tools button:nth-child(2){display:none}.slide-heading h1,.cover-slide .slide-heading h1{font-size:2.35rem}.lead{font-size:1rem}.slide-side{grid-template-columns:1fr}.system-visual{display:none}.process-flow button{flex-basis:135px}.deck-footer .class-progress{display:none}.deck-footer{justify-content:space-between}.counter{margin-left:auto}.overview-grid button{min-height:112px}.deck-dialog{padding:17px}.dialog-heading h2{font-size:1.2rem}.help-grid kbd{min-width:95px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media print{body{overflow:visible}.deck-shell{color:#101820;background:#fff;height:auto;display:block}.deck-header,.phase-rail,.deck-footer,.speaker-notes,.notice,.deck-dialog,.slide-side{display:none}.slide-stage{padding:24px;overflow:visible}.slide-content{animation:none;display:block}.system-card,.fact-board,.check-panel,.decision-panel,.question{color:#101820;break-inside:avoid;background:#fff}.lead,.system-card p{color:#394b59}}