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10px;font-size:.68rem;font-weight:800}.faq{margin-top:64px;display:grid;grid-template-columns:1fr 1fr;gap:16px 35px}.faq>h3{grid-column:1/-1;font:800 1.65rem system-ui,sans-serif;letter-spacing:-.04em;margin:0 0 10px}.faq details{border-bottom:1px solid #dce4ed;padding:15px 0}.faq summary{list-style:none;font-weight:800;font-size:.89rem;cursor:pointer;display:flex;justify-content:space-between;gap:14px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';color:#4776a9;font-size:1.2rem}.faq details[open] summary:after{content:'−'}.faq details p{font-size:.81rem;line-height:1.8;color:#697a8b}.footer{background:#111e31;color:#e3edf6;padding:63px 0 24px}.footer-inner{display:flex;justify-content:space-between;gap:45px}.footer .brand-title{color:white}.footer-inner p{color:#a6b7cf;max-width:375px;font-size:.79rem;margin-top:18px}.footer-links{display:grid;grid-template-columns:repeat(2,auto);gap:12px 33px}.footer-links a{color:#b1c1d5}.footer-bottom{margin-top:52px;border-top:1px solid #304057;padding-top:23px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#7f94ad;font-size:.72rem}.concept-detail[hidden],.nav-links[hidden]{display:none!important}
@media(max-width:1060px){.shell{width:min(var(--shell),calc(100% - 48px))}.nav-links{gap:14px}.header-cta{display:none}.hero-grid{grid-template-columns:1.03fr .97fr}.visual-card.visual-a{left:0}.visual-card.visual-b{right:-16px}.visual-card.visual-c{left:0}.concept-detail{padding:25px}.detail-grid{grid-template-columns:1.3fr 1fr}.resource-grid{grid-template-columns:repeat(2,1fr)}.participant-grid{gap:45px}}@media(max-width:800px){.header-inner{justify-content:space-between;min-height:67px}.menu-toggle{display:flex;flex-direction:column;gap:4px}.menu-toggle span{width:22px;height:2px;background:#29405c}.nav-links{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;box-shadow:0 18px 24px #17283c14;padding:20px 24px;flex-direction:column;align-items:stretch;gap:0}.nav-links.is-open{display:flex}.nav-links a{padding:12px 6px}.hero-grid{display:flex;flex-direction:column;align-items:stretch;padding:55px 0 25px;gap:14px}.hero-visual{height:360px;width:min(530px,100%);margin:auto}.hero-metrics{grid-template-columns:repeat(2,1fr)}.hero-metrics>div{padding:17px!important}.hero-metrics>div:nth-child(2){border-right:0}.hero-metrics>div:nth-child(-n+2){border-bottom:1px solid #e0e7ed}.intro-grid,.participant-grid,.detail-grid{grid-template-columns:1fr;gap:20px}.intro-grid>div:nth-child(2){padding-top:0}.process-row{grid-template-columns:repeat(3,1fr)}.process-row>div:nth-child(3){border-right:0}.process-row>div:nth-child(-n+3){border-bottom:1px solid #e6ebf0}.concept-cards{grid-template-columns:repeat(3,1fr);gap:10px}.concept-image{height:140px;padding:10px}.concept-summary{padding:14px}.concept-summary h3{font-size:1.05rem}.concept-summary p{font-size:.76rem}.concept-detail{padding:23px}.detail-heading{align-items:start;flex-direction:column}.player-layout{grid-template-columns:1fr}.player-sidebar{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.player-sidebar .tiny-label,.player-hint{grid-column:1/-1}.playlist-button{margin:0}.section-top{align-items:start;flex-direction:column;gap:18px}.section{padding:75px 0}.faq{grid-template-columns:1fr}.player-stage{min-height:340px}}@media(max-width:540px){.shell{width:calc(100% - 36px)}.announcement{font-size:.6rem;gap:7px}.announcement-divider{display:none}.hero h1{font-size:clamp(2.55rem,12vw,3.8rem)}.hero-description{font-size:.96rem}.hero-visual{height:320px}.visual-a{transform:scale(.8) rotate(-8deg);transform-origin:top left}.visual-b{transform:scale(.82) rotate(4deg);transform-origin:top right;top:75px;right:-10px!important}.visual-c{transform:scale(.85) rotate(-3deg);transform-origin:bottom left;bottom:0}.visual-stamp{display:none}.hero-metrics strong{font-size:1.45rem}.hero-metrics span{font-size:.7rem}.section-heading{font-size:2.4rem}.concept-cards{grid-template-columns:1fr;gap:12px}.concept-card{display:grid;grid-template-columns:40% 60%;min-height:150px}.concept-image{height:100%;padding:12px}.concept-summary{padding:17px;align-self:center}.concept-summary p{min-height:0;margin-bottom:8px}.detail-nav{width:100%}.detail-nav a{flex:1;text-align:center}.detail-grid{gap:14px}.preview-window{min-height:210px}.preview-content{min-height:160px}.preview-content img{max-height:225px}.process-row{grid-template-columns:repeat(2,1fr)}.process-row>div{padding:17px 15px}.process-row>div:nth-child(3){border-right:1px solid #e6ebf0}.process-row>div:nth-child(even){border-right:0}.process-row>div:nth-child(-n+4){border-bottom:1px solid #e6ebf0}.player-head{flex-direction:column;align-items:start}.player-stage{padding:8px;min-height:265px}.player-stage video{max-height:350px}.player-stage.is-mobile video{max-height:430px;min-height:0}.player-footer{flex-direction:column;align-items:start}.player-sidebar{grid-template-columns:1fr}.playlist-button{padding:12px}.resource-grid{grid-template-columns:1fr}.resource-card{min-height:235px}.footer-inner{flex-direction:column}.footer-links{grid-template-columns:repeat(2,1fr)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* Accessible written alternatives to the silent, synthetic MP4 sequences. */
.scene-transcript{border-top:1px solid #39465b;background:#172239;padding:17px 26px 22px;color:#d5e2f3}
.scene-transcript summary{cursor:pointer;color:#deebff;font-size:.81rem;font-weight:800;list-style-position:outside}
.scene-transcript summary:hover{text-decoration:underline}
.scene-transcript ol{margin:16px 0 0;padding-left:20px}
.scene-transcript li{padding:6px 0;font-size:.78rem;line-height:1.7;color:#b7c9de}
.resource-card .arrow-link+.pending-label{margin-top:12px}
@media(max-width:540px){.scene-transcript{padding:14px 19px}.scene-transcript li{font-size:.75rem}}

/* WCAG AA: deliberate high-contrast secondary text on the light surfaces. */
.hero-description,.hero-small{color:#526176}
.visual-card .mini-result{color:#4e5f72}
.visual-card .chat-reply{background:#2b7057}
.visual-stamp{color:#34586d}
.intro-grid .text-muted{color:#526176!important}
.process-row span{color:#3c5878}
.process-row small{color:#526176}
.section-side{color:#526176}
.concept-card .concept-summary p{color:#526176}
.detail-kicker,.tiny-label{color:#45576c}
.detail-intro,.preview-toolbar b,.preview-device,.detail-points li{color:#526176}
.player-sidebar .tiny-label,.playlist-button small{color:#526176}
.comparison-note{color:#526176}
.resource-card:not(.feature-resource) .tiny-label{color:#45576c}
.resource-card:not(.feature-resource) p:not(.tiny-label){color:#526176}
.resource-card .pending-label{color:#684915}
.footer-bottom{color:#bdcde0}

.approved-materials{margin-top:14px;padding-top:12px;border-top:1px solid #cad6e3;width:100%}.approved-materials h4{margin:0 0 8px;font-size:.83rem}.approved-materials ul{list-style:none;margin:0;padding:0}.approved-materials li{padding:5px 0}.approved-materials a{font-size:.76rem;color:#235b92;font-weight:700}.pending-label[hidden],.approved-materials[hidden]{display:none!important}