/* Civilisation as a luminous route through deep space. */
.single-universe .cu-intro{top:42%;left:10%}
.single-universe .cu-intro h1{font-size:78px;letter-spacing:19px;margin:14px 0 12px;font-weight:300}
.single-universe .cu-intro .cu-eyebrow{font-size:8px;letter-spacing:4px;color:#b2bac895}
.single-universe .cu-intro-copy{font-size:13px;letter-spacing:2.5px;color:#b5becb}
#civilization-deep-cosmos .cu-intro-actions .cu-cruise{border:0!important;border-bottom:1px solid #d4c59f80!important;backdrop-filter:none;background:transparent;min-width:180px;justify-content:space-between;padding:10px 0 15px!important;font:14px var(--serif)!important}
#civilization-deep-cosmos .cu-cruise:hover{color:#fff5d8!important;border-bottom-color:#f4d593!important}
.single-universe .cu-intro-actions .cu-discover{border-bottom:0!important;color:#929da8!important;font-size:11px!important;padding:10px 0 15px!important}
.single-universe .cu-intro-actions{gap:28px}
.single-universe .cu-timeline{bottom:18px;padding-top:0;border:0}
.single-universe .cu-time-heading{display:none}
.single-universe .cu-time-track{height:16px;margin-bottom:0}
.single-universe .cu-density{opacity:.25}
.single-universe .cu-era-nav button{min-height:30px;color:#95a2b1!important;font-size:10px!important;padding-top:7px!important}
.single-universe .cu-era-nav button[aria-pressed=true]{color:#e7d7af!important}
.single-universe .cu-slider{opacity:.75}.single-universe .cu-slider:hover{opacity:1}
.single-universe .cu-controls{bottom:83px;border:0;background:none;backdrop-filter:none}
.single-universe .cu-fit,.single-universe .cu-controls .cu-scale{display:none}
.single-universe .cu-controls .cu-motion{margin-left:12px}
.single-universe .cu-statusbar{bottom:95px;font-size:10px;color:#8191a4;letter-spacing:1px}
.single-universe .cu-flight-hint{bottom:83px;letter-spacing:1.4px;color:#93a1b2;font-size:10px}
.single-universe .cu-flight-hint>span:first-child{display:none}
.single-universe .cu-flight-hint>i{width:32px}
.single-universe .cu-panel{top:104px;bottom:91px;right:4%;width:435px;max-width:39vw;border:0;border-top:1px solid #bbc9d736;background:linear-gradient(125deg,#06101be8,#030913eb);box-shadow:-20px 10px 80px #02040a33;backdrop-filter:blur(18px);border-radius:0;padding:28px 29px;scrollbar-width:thin}
.single-universe .cu-detail-header,.single-universe .cu-result-header{top:-28px;padding-top:12px;background:linear-gradient(#07101b 80%,#07101bf0);border-bottom:0}
.single-universe .cu-detail-title{font-size:30px;line-height:1.6;letter-spacing:2px;margin:13px 0 5px}
.single-universe .cu-detail-date{font:11px var(--sans);letter-spacing:1px;color:#97a4b7}
.single-universe .cu-context{font-size:12px;color:#728399;margin-top:0}
.single-universe .cu-detail-actions{border-top:0;border-bottom:1px solid #b4c4d019;padding:9px 0 15px;margin:0 0 20px}
.single-universe .cu-bookmark{font-size:12px!important;color:#b5bbbf!important}
.single-universe .cu-lesson-step{display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:2px;color:#ac9f83;margin:22px 0 12px}
.cu-lesson-step b{font:13px var(--sans);letter-spacing:1px;color:#dfd5bd}.cu-lesson-step i{font-style:normal;color:#6d7a8b;font-size:10px}
.single-universe .cu-lesson h3{font:22px/1.65 var(--serif);color:#e1dbcd;letter-spacing:1px;margin:14px 0 23px}
.cu-lesson ol{list-style:none;padding:0;margin:0}.cu-lesson li{display:flex;gap:15px;padding:15px 0;border-top:1px solid #a1b2c317}
.cu-lesson li>span{font:10px/2.7 var(--sans);color:#7d8b9d;flex:0 0 18px;letter-spacing:1px}.cu-lesson li p{margin:0;font-size:15px;line-height:1.95;color:#b7c3d1;letter-spacing:.2px}
.cu-reflection{margin:20px 0 9px;border-left:1px solid #c7b48b55;padding-left:16px}
.cu-reflection summary{display:flex;gap:12px;align-items:center;justify-content:space-between;font-size:12px;line-height:1.8;cursor:pointer;color:#c9b68f;list-style:none;padding:6px 0}
.cu-reflection summary::-webkit-details-marker{display:none}.cu-reflection summary span{color:#7e8a9a}.cu-reflection[open] summary span{transform:rotate(45deg)}
.cu-reflection p{font:15px/1.9 var(--serif);color:#c6c9c9;margin:14px 0}
.cu-lesson-date-note{font-size:11px;line-height:1.8;color:#73849a;margin:20px 0 10px}
.cu-learning-actions{display:flex;justify-content:space-between;gap:12px;margin:20px 0 24px}
#civilization-deep-cosmos .cu-learning-actions button{font-size:12px;padding:8px 0;color:#a9b8c9;min-height:35px}
#civilization-deep-cosmos .cu-learning-actions button[aria-pressed=true]{color:#d8c396}
.cu-original{margin:15px 0 20px;border-top:1px solid #a1b2c319}
.cu-original>summary{padding:17px 0;display:flex;justify-content:space-between;cursor:pointer;font-size:12px;color:#8697ad;list-style:none}
.cu-original>summary::-webkit-details-marker{display:none}.cu-original[open]>summary span{transform:rotate(45deg)}
.cu-detail[data-lesson=false] .cu-original{border:0;margin-top:0}.cu-detail[data-lesson=false] .cu-original>summary{display:none}
.single-universe .cu-original .cu-body p{font-size:14px;line-height:1.95;color:#9aaabe}
.single-universe .cu-detail[data-lesson=false] .cu-original .cu-body p{font-size:16px;line-height:2;color:#b6c4d4}
.cu-lesson-source{font-size:12px;line-height:1.85;color:#91a1b7}
.single-universe .cu-source-details summary{font-size:12px;color:#8697ad}.single-universe .cu-status{font-size:12px}
#civilization-deep-cosmos .cu-experience{background:none!important;color:#bfb394!important;border:1px solid #bfb39436;min-height:43px;font-size:12px!important;margin-top:15px}
.single-universe .cu-related-title{margin-top:30px}.single-universe .cu-related-title h3{font-size:18px}.single-universe .cu-related button{font-size:14px!important}
#civilization-deep-cosmos .cu-next{border-top:1px solid #c7b48b4d!important;min-height:52px;padding:17px 0!important;color:#ded0ad!important;font:14px/1.6 var(--serif)!important;margin-top:24px}
#civilization-deep-cosmos .cu-start-path{display:block;width:100%;position:relative;margin:20px 0 0;padding:17px 32px 19px 0;text-align:left;border-bottom:1px solid #a0b6d31c}
.cu-start-path>span{display:block;font:20px var(--serif);letter-spacing:2px;color:#d0c3a9}.cu-start-path small{display:block;font:10px/1.8 var(--sans);color:#8090a5;margin-top:8px}.cu-start-path i{position:absolute;right:0;top:20px;font:20px var(--serif);color:#b8a682}
.single-universe .explore-dock{max-height:calc(100dvh - 195px);border:0;border-top:1px solid #bbc9d72e;border-radius:0;background:#06101bf0;padding:25px}
.single-universe #contentDialog{top:104px;bottom:91px;border:0;border-top:1px solid #bbc9d736;background:#06101bf0;border-radius:0}
.single-universe .cu-toast{bottom:100px}
.cu-reading .cu-labels button{opacity:.65}
@media(min-width:1500px){.single-universe .cu-panel{right:8%;width:460px}.single-universe .cu-intro h1{font-size:90px}}
@media(max-width:800px){
 .single-universe .cu-intro{left:8%;top:39%}.single-universe .cu-intro h1{font-size:56px;letter-spacing:11px;margin:15px 0 12px}
 .single-universe .cu-intro .cu-eyebrow{font-size:7px;letter-spacing:2px}.single-universe .cu-intro-copy{font-size:12px;letter-spacing:1px}
 #civilization-deep-cosmos .cu-intro-actions .cu-cruise{font-size:13px!important;min-width:160px;padding-bottom:12px!important}.single-universe .cu-intro-actions{gap:20px}
 .single-universe .cu-intro-actions .cu-discover{font-size:10px!important;letter-spacing:0!important}
 .single-universe .cu-panel{inset:86px 14px 89px;max-width:none;width:auto;padding:23px;border-top:1px solid #bbc9d736}
 .single-universe .cu-detail-header,.single-universe .cu-result-header{top:-23px}.single-universe .cu-detail-title{font-size:28px}
 .single-universe .cu-lesson h3{font-size:21px}.cu-lesson li p{font-size:15px}.cu-lesson li{gap:11px}
 .single-universe .cu-controls{bottom:78px}.single-universe .cu-flight-hint{bottom:77px;font-size:9px;letter-spacing:.4px}
 .single-universe .cu-timeline{left:20px;right:20px;bottom:16px}.single-universe .cu-era-nav button{font-size:9px!important;letter-spacing:0}
 .single-universe .cu-time-track{height:14px}.single-universe .cu-toast{bottom:95px}
 .single-universe #contentDialog{inset:86px 14px 89px;width:auto;max-width:none}
 .single-universe .explore-dock{max-height:calc(100dvh - 173px);padding:22px}
 .single-universe.is-searching.explore-open .cu-start-path{display:none}
 .single-universe.is-searching.explore-open .cu-results{top:187px}
 .single-universe .cu-next{bottom:-23px;background:#060e1af5!important;margin-bottom:-23px}
}
@media(max-width:370px){.single-universe .cu-intro h1{font-size:49px}.single-universe .cu-intro-actions{gap:15px}#civilization-deep-cosmos .cu-intro-actions .cu-cruise{min-width:145px}.single-universe .cu-era-nav button{font-size:8px!important}}
@media(max-height:500px){
 .single-universe .cu-intro{top:28%;left:8%}.single-universe .cu-intro h1{font-size:39px;margin:12px 0}.single-universe .cu-intro-copy{display:none}
 .single-universe .cu-panel,.single-universe #contentDialog{top:67px;bottom:76px}.single-universe .cu-timeline{bottom:11px}.single-universe .cu-controls{bottom:70px}.single-universe .cu-flight-hint{bottom:68px}
 .single-universe .explore-dock{top:67px;max-height:calc(100dvh - 80px)}
}
@media(prefers-reduced-motion:reduce){.single-universe *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.cu-path-row>b{font:11px var(--sans);letter-spacing:1px;color:#8497ac;margin-right:6px;min-width:23px}
.cu-path-row>em{font:12px var(--sans);font-style:normal;color:#cbbb90;margin-left:auto}.cu-path-row>span{flex:1}
.single-universe .cu-detail{display:flex;flex-direction:column;overflow:hidden}
.single-universe .cu-detail-header{position:static;flex-shrink:0;margin:0 0 10px;padding:0 0 12px;background:transparent;border-bottom:1px solid #afc0d315}
.cu-detail-scroll{overflow-y:auto;overflow-x:hidden;min-height:0;flex:1;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#43516a transparent;padding-right:4px}
.cu-detail-footer{flex-shrink:0;display:flex;gap:14px;align-items:center;border-top:1px solid #c7b48b4d;margin-top:18px;padding-top:4px;min-height:56px}
#civilization-deep-cosmos .cu-detail-footer .cu-next{position:static;border:0!important;flex:1;min-width:0;margin:0;padding:10px 0!important;font-size:13px!important;background:none!important;justify-content:flex-end;text-align:right}
#civilization-deep-cosmos .cu-learning-prev{min-width:34px;min-height:42px;color:#b4bdc7;font-size:19px}
.cu-lesson-transition{font:14px/1.9 var(--serif);color:#9fabbc;border-left:1px solid #8195af55;padding-left:15px;margin:30px 0 15px}
@media(max-width:800px){.cu-detail-footer{gap:9px;margin-top:14px;min-height:48px}#civilization-deep-cosmos .cu-detail-footer .cu-next{font-size:12px!important}.single-universe .cu-detail-header{position:static;margin-top:0;padding-top:0}}
@media(max-width:800px){.single-universe .cu-detail{top:max(172px,32dvh)}.single-universe .cu-reading .cu-labels{visibility:hidden}}
@media(max-height:500px){.single-universe .cu-detail{top:67px;bottom:76px}}

/* Keep the first learning question in view; shorter screens retain a usable scroll area. */
@media(max-width:800px){
 .single-universe .cu-detail{padding:20px}
 .single-universe .cu-detail-title{font-size:22px;line-height:1.5;letter-spacing:1px;margin:8px 0}
 .single-universe .cu-detail[data-lesson=true] .cu-context{display:none}
 .single-universe .cu-detail-actions{padding:2px 0;margin:0;border:0}
 .single-universe .cu-detail-header{padding-bottom:8px;margin-bottom:8px}
 .single-universe .cu-lesson-step{margin:10px 0 6px}
 .single-universe .cu-lesson h3{font-size:18px;margin:8px 0 12px}
 .cu-lesson li{padding:11px 0}.cu-lesson li p{font-size:14px;line-height:1.85}
}
@media(max-height:500px){
 .single-universe .cu-detail{top:58px;bottom:54px;padding:10px 18px}
 .single-universe .cu-detail-header{margin:0 0 4px;padding:0 0 2px;min-height:28px}
 #civilization-deep-cosmos .cu-detail-header .cu-close{min-height:28px;height:28px;min-width:28px;width:28px;font-size:20px}
 .single-universe .cu-detail-kind{padding-top:5px;font-size:10px}
 .single-universe .cu-detail-footer{min-height:30px;margin-top:6px;padding-top:2px}
 #civilization-deep-cosmos .cu-detail-footer .cu-next{min-height:30px;padding:4px 0!important;font-size:11px!important}
 #civilization-deep-cosmos .cu-learning-prev{min-height:30px}
 .single-universe .cu-detail-title{font-size:22px;line-height:1.4}
}