/* A playable, simplified journey through six chapters of cosmic history. */
.cosmic-dialog{--cosmic-ink:#172b43;--cosmic-paper:#fff9ed;--cosmic-lime:#dced88;--cosmic-lilac:#d4c6f5;--cosmic-orange:#ed8657;position:fixed;inset:0;width:min(1110px,calc(100vw - 28px));max-width:none;max-height:calc(100dvh - 28px);margin:auto;padding:0;border:2px solid #152943;border-radius:28px;overflow:hidden;background:var(--cosmic-paper);color:var(--cosmic-ink);box-shadow:0 28px 100px #0008,7px 7px 0 #bcb2ed;font-family:var(--sans,sans-serif)}
.cosmic-dialog::backdrop{background:#050a1de8;backdrop-filter:blur(10px)}.cosmic-dialog[open]{animation:cosmic-arrive .5s cubic-bezier(.16,1,.3,1) both}.cosmic-dialog [hidden]{display:none!important}.cosmic-shell{max-height:calc(100dvh - 32px);padding:26px;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;box-sizing:border-box}.cosmic-close{position:absolute;z-index:10;top:15px;right:15px;display:grid;place-items:center;width:48px;height:48px;padding:0;border:1.5px solid #172b4350;border-radius:50%;background:#fff9edf5;box-shadow:0 3px 10px #172b4310;color:var(--cosmic-ink);font:400 28px/1 sans-serif;cursor:pointer;transition:transform .25s,background .25s}.cosmic-close:hover{background:var(--cosmic-lilac);transform:rotate(8deg)}
.cosmic-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-right:58px;margin-bottom:20px}.cosmic-kicker{margin:0 0 7px;font:700 8px/1.5 var(--latin,sans-serif);letter-spacing:.13em}.cosmic-title{margin:0;font:800 clamp(23px,3vw,35px)/1.1 var(--latin,sans-serif);letter-spacing:-.055em}.cosmic-title em{color:#ac4d35;font-style:normal}.cosmic-language{min-width:92px;min-height:48px;padding:8px 10px;border:1.5px solid #172b4355;border-radius:10px;background:#fffef8;color:var(--cosmic-ink);font:600 12px/1.4 var(--sans,sans-serif)}
.cosmic-timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;margin:0 0 18px;padding:0;list-style:none}.cosmic-timeline>li{display:flex;align-items:center;justify-content:center;gap:10px;min-height:36px;border:1px solid #172b4324;border-radius:11px;background:#eee9e8;color:#657086;transition:background .4s,border-color .4s,box-shadow .4s}.cosmic-timeline span{font:700 9px/1 var(--latin,sans-serif)}.cosmic-timeline i{font:400 18px/1 sans-serif;font-style:normal}.cosmic-timeline>.cosmic-completed{background:var(--cosmic-lime);border-color:#172b4355;color:var(--cosmic-ink)}.cosmic-timeline>.cosmic-current{background:var(--cosmic-lilac);border-color:var(--cosmic-ink);color:var(--cosmic-ink);box-shadow:0 3px 0 var(--cosmic-ink)}
.cosmic-layout{display:grid;grid-template-columns:minmax(0,1.16fr) minmax(0,1fr);gap:22px;align-items:stretch}.cosmic-figure{position:relative;isolation:isolate;min-width:0;min-height:490px;margin:0;overflow:hidden;border:1px solid #344668;border-radius:24px;background:#080e24;color:#fff9ed;box-shadow:inset 0 0 0 1px #ffffff10}.cosmic-scene-meta{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding:24px 24px 0;color:#d3d8ee;font-size:9px;line-height:1.5}.cosmic-chapter-label{font:700 9px/1.5 var(--latin,var(--sans,sans-serif));letter-spacing:.05em}.cosmic-era{color:#dbca99;font-size:9px}.cosmic-scene-title{position:relative;z-index:2;margin:12px 24px 0;max-width:430px;color:#fff9ed;font-size:clamp(18px,2.15vw,27px);line-height:1.5;font-weight:700;letter-spacing:-.035em;pointer-events:none}.cosmic-art{position:absolute;inset:0;z-index:0;overflow:hidden;border-radius:inherit;background:radial-gradient(ellipse at center,#1a2a55,#070d22 76%);transition:box-shadow .4s}.cosmic-art svg{display:block;width:100%;height:100%;overflow:visible}.cosmic-art circle{transition:cx .65s cubic-bezier(.2,.8,.2,1),cy .65s cubic-bezier(.2,.8,.2,1),r .65s,opacity .6s}.cosmic-art g,.cosmic-art path{transition:transform .7s cubic-bezier(.2,.8,.2,1),opacity .6s}.cosmic-art .cosmic-scene{animation:cosmic-scene-in .6s ease-out both}.cosmic-background-stars{transform-origin:400px 300px;animation:cosmic-sky-drift 100s linear infinite}.cosmic-expansion-glow,.cosmic-star-halo{transform-origin:400px 300px;animation:cosmic-breathe 7s ease-in-out infinite}.cosmic-disk-rings{transform-origin:400px 300px;animation:cosmic-orbit-lean 14s ease-in-out infinite}.cosmic-light-rays{stroke-dasharray:110 40;animation:cosmic-light-travel 9s linear infinite}.cosmic-caption{position:absolute;z-index:3;left:0;right:0;bottom:0;margin:0;padding:55px 24px 24px;background:linear-gradient(transparent,#070d22cc 48%,#070d22f5);color:#dce4f5;font-size:11px;line-height:1.9;pointer-events:none}.cosmic-grown{box-shadow:inset 0 0 0 3px #dced88a8}.cosmic-grown:after{content:'';position:absolute;left:50%;top:50%;width:80px;height:80px;border:1px solid #dced88cc;border-radius:50%;pointer-events:none;animation:cosmic-growth-ring .7s ease-out both}
.cosmic-panel{min-width:0;align-self:stretch;padding:20px 2px 10px 0}.cosmic-panel h3{margin:10px 0 16px;font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.65;letter-spacing:-.035em}.cosmic-panel-kicker{margin:0;color:#735296;font:700 9px/1.5 var(--latin,sans-serif);letter-spacing:.09em}.cosmic-body,.cosmic-lesson{margin:0 0 22px;font-size:12px;line-height:2;color:#415268}.cosmic-guide{display:grid;gap:10px;margin:24px 0;padding:0;border:0}.cosmic-guide legend{margin-bottom:10px;font-size:11px;font-weight:700}.cosmic-guide label{display:flex;align-items:center;gap:10px;min-height:58px;padding:12px 14px;border:1.5px solid #172b4335;border-radius:13px;background:#fffefa;cursor:pointer}.cosmic-guide label:has(input:checked){background:#eee5ff;border-color:var(--cosmic-ink);box-shadow:3px 3px 0 var(--cosmic-ink)}.cosmic-guide input{width:17px;height:17px;margin:0;accent-color:var(--cosmic-ink)}.cosmic-guide strong{display:block;font-size:12px;line-height:1.4}.cosmic-guide small{display:block;margin-top:5px;color:#4b5c70;font-size:10px;line-height:1.5}
.cosmic-primary,.cosmic-secondary{min-height:49px;padding:12px 20px;border:1.5px solid var(--cosmic-ink);border-radius:999px;color:var(--cosmic-ink);font:700 12px/1.5 var(--sans,sans-serif);cursor:pointer;touch-action:manipulation;transition:transform .2s,box-shadow .2s,background .2s}.cosmic-primary{width:100%;background:var(--cosmic-lime);box-shadow:4px 4px 0 var(--cosmic-ink)}.cosmic-primary:hover{transform:translateY(-2px);box-shadow:4px 6px 0 var(--cosmic-ink)}.cosmic-primary:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--cosmic-ink)}.cosmic-secondary{width:100%;margin-top:15px;background:var(--cosmic-paper);box-shadow:2px 2px 0 var(--cosmic-ink)}
.cosmic-intro{margin:0 0 22px;padding:14px 16px;border-left:3px solid #a492c9;border-radius:0 10px 10px 0;background:#eee7f4;color:#354a63;font-size:11px;line-height:1.9}.cosmic-step-label{margin:0;color:#8d5036;font:700 10px/1.5 var(--latin,var(--sans,sans-serif))}.cosmic-panel .cosmic-question{margin:9px 0 20px;font-size:19px;line-height:1.65}.cosmic-question:focus,.cosmic-learn-title:focus,.cosmic-done-title:focus{outline:none}
.cosmic-range-panel{padding:18px 0 3px}.cosmic-range-label{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px}.cosmic-range-value{font-family:var(--latin,var(--sans,sans-serif));font-size:10px;color:#526179}.cosmic-range{display:block;width:100%;height:48px;margin:7px 0 0;padding:0;appearance:none;-webkit-appearance:none;background:transparent;cursor:ew-resize;touch-action:pan-y}.cosmic-range::-webkit-slider-runnable-track{height:8px;border:1px solid #172b4325;border-radius:99px;background:linear-gradient(90deg,#b9add5 0 var(--cosmic-goal,60%),#dced88 var(--cosmic-goal,60%) 100%)}.cosmic-range::-moz-range-track{height:8px;border:1px solid #172b4325;border-radius:99px;background:linear-gradient(90deg,#b9add5 0 var(--cosmic-goal,60%),#dced88 var(--cosmic-goal,60%) 100%)}.cosmic-range::-webkit-slider-thumb{width:27px;height:27px;margin-top:-10px;border:2px solid var(--cosmic-ink);border-radius:50%;appearance:none;-webkit-appearance:none;background:var(--cosmic-paper);box-shadow:2px 2px 0 var(--cosmic-ink)}.cosmic-range::-moz-range-thumb{width:24px;height:24px;border:2px solid var(--cosmic-ink);border-radius:50%;background:var(--cosmic-paper);box-shadow:2px 2px 0 var(--cosmic-ink)}.cosmic-range-goal{margin:0 0 20px;text-align:right;color:#5e6472;font-size:10px;line-height:1.4}.cosmic-range:focus-visible{outline:3px solid #8e6ac2;outline-offset:3px;border-radius:8px}
.cosmic-choices{display:grid;gap:11px}.cosmic-choice{display:flex;align-items:center;gap:11px;width:100%;min-height:56px;padding:11px 12px;border:1.5px solid #172b4350;border-radius:13px;background:#fffef9;color:var(--cosmic-ink);text-align:left;font:600 12px/1.55 var(--sans,sans-serif);cursor:pointer;touch-action:manipulation;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}.cosmic-choice:hover{transform:translateX(2px);background:#f1e9ff;border-color:var(--cosmic-ink)}.cosmic-choice:active{transform:translateY(2px)}.cosmic-choice-number{display:grid;place-items:center;flex:0 0 25px;width:25px;height:25px;border:1px solid #172b4340;border-radius:8px;font:700 10px/1 var(--latin,sans-serif);color:#52627a}.cosmic-choice-label{flex:1;min-width:0}.cosmic-recommended{border-color:#172b4380;background:#f2f4da}.cosmic-choice-badge{flex-shrink:0;padding:5px 6px;border-radius:6px;background:var(--cosmic-lime);font-size:8px;line-height:1.2;white-space:nowrap}.cosmic-help{min-height:45px;margin:8px 0 0;padding:8px 3px;border:0;border-radius:6px;background:transparent;color:#654b86;text-decoration:underline;text-underline-offset:4px;font:600 11px/1.4 var(--sans,sans-serif);cursor:pointer}.cosmic-hint{margin:3px 0 9px;padding:12px 14px;border:1px solid #b2be7770;border-radius:11px;background:#f0f2d9;color:#44522c;font-size:11px;line-height:1.8}.cosmic-keyboard{margin:10px 0 0;color:#68778b;font-size:9px;line-height:1.7}
.cosmic-learn-star{display:block;margin:5px 0 13px;color:#b4613f;font:400 46px/1 sans-serif;transform:rotate(-8deg)}.cosmic-learn .cosmic-panel-kicker{color:#765b39}.cosmic-panel .cosmic-learn-title{margin-top:9px;font-size:22px}.cosmic-lesson{font-size:12px;line-height:2;margin-bottom:17px}.cosmic-sources{margin:0 0 20px;color:#52647a;font-size:10px;line-height:1.8}.cosmic-sources summary{cursor:pointer;min-height:28px}.cosmic-sources a{display:block;margin:7px 0;color:#5d4980;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.cosmic-next-note{margin:0 0 14px;color:#607183;font-size:10px;line-height:1.7}.cosmic-done{padding-top:20px}.cosmic-panel .cosmic-done-title{font-size:28px;line-height:1.6}.cosmic-done .cosmic-body{margin-bottom:27px}
.cosmic-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:18px}.cosmic-footer p{margin:0;color:#687386;font-size:9px;line-height:1.5}.cosmic-restart{flex-shrink:0;min-height:44px;padding:7px 8px;border:0;border-radius:6px;background:transparent;color:#526079;font:600 10px/1.4 var(--sans,sans-serif);text-decoration:underline;text-underline-offset:4px;cursor:pointer}.cosmic-status{position:absolute;width:1px;height:1px;margin:0;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.cosmic-close:focus-visible,.cosmic-language:focus-visible,.cosmic-primary:focus-visible,.cosmic-secondary:focus-visible,.cosmic-choice:focus-visible,.cosmic-help:focus-visible,.cosmic-restart:focus-visible,.cosmic-guide label:focus-within{outline:3px solid #815cb8;outline-offset:3px}
@keyframes cosmic-arrive{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}@keyframes cosmic-scene-in{from{opacity:0}to{opacity:1}}@keyframes cosmic-sky-drift{to{transform:rotate(360deg)}}@keyframes cosmic-breathe{50%{transform:scale(1.06)}}@keyframes cosmic-orbit-lean{50%{transform:rotate(-5deg)}}@keyframes cosmic-light-travel{to{stroke-dashoffset:-300}}@keyframes cosmic-growth-ring{from{opacity:.8;transform:translate(-50%,-50%) scale(.6)}to{opacity:0;transform:translate(-50%,-50%) scale(5)}}
@media(max-width:850px){.cosmic-shell{padding:20px}.cosmic-layout{grid-template-columns:1fr 1fr;gap:18px}.cosmic-figure{min-height:480px}.cosmic-scene-meta{padding:19px 19px 0;gap:4px}.cosmic-scene-title{margin:10px 19px 0;font-size:20px}.cosmic-caption{padding:45px 19px 19px;font-size:10px}.cosmic-panel{padding-top:8px}.cosmic-panel h3{font-size:21px}.cosmic-panel .cosmic-question{font-size:17px}.cosmic-body,.cosmic-lesson{font-size:11px}.cosmic-intro{padding:11px 12px;font-size:10px;margin-bottom:17px}.cosmic-choice{font-size:11px;gap:8px}.cosmic-choice-badge{font-size:7px}.cosmic-guide label{padding:10px}.cosmic-guide strong{font-size:11px}.cosmic-guide small{font-size:9px}.cosmic-primary{font-size:11px;padding-inline:15px}.cosmic-era{font-size:8px}}
@media(max-width:620px){.cosmic-dialog{width:calc(100vw - 16px);max-height:calc(100dvh - 16px);border-radius:21px;box-shadow:4px 4px 0 #bcb2ed}.cosmic-shell{max-height:calc(100dvh - 20px);padding:17px 14px 12px}.cosmic-close{top:10px;right:10px;width:48px;height:48px}.cosmic-header{gap:8px;padding-right:50px;margin-bottom:14px}.cosmic-kicker{font-size:6px;letter-spacing:.04em;margin-bottom:6px}.cosmic-title{font-size:21px;line-height:1.15}.cosmic-title em{display:block}.cosmic-language{min-width:76px;min-height:48px;padding:6px;font-size:10px}.cosmic-timeline{gap:6px;margin-bottom:13px}.cosmic-timeline>li{min-height:30px;gap:5px;border-radius:8px}.cosmic-timeline span{font-size:7px}.cosmic-timeline i{font-size:14px}.cosmic-layout{grid-template-columns:1fr;gap:17px}.cosmic-figure{min-height:0;height:226px;border-radius:17px}.cosmic-art svg{width:100%;height:100%;transform:scale(1.05)}.cosmic-scene-meta{padding:13px 15px 0;font-size:7px;gap:5px}.cosmic-chapter-label,.cosmic-era{font-size:7px}.cosmic-scene-title{margin:7px 15px 0;font-size:16px;max-width:90%;line-height:1.45}.cosmic-caption{padding:30px 15px 12px;font-size:9px;line-height:1.65}.cosmic-panel{padding:0 3px 2px}.cosmic-panel h3{margin-top:8px;margin-bottom:12px;font-size:21px}.cosmic-panel-kicker{font-size:8px}.cosmic-body{font-size:11px;line-height:1.9;margin-bottom:14px}.cosmic-guide{grid-template-columns:1fr 1fr;gap:9px;margin:17px 0 20px}.cosmic-guide legend{font-size:10px;margin-bottom:8px}.cosmic-guide label{gap:7px;padding:10px 8px;min-height:65px;align-items:flex-start}.cosmic-guide input{width:14px;height:14px;flex-shrink:0;margin-top:2px}.cosmic-guide strong{font-size:10px;line-height:1.5}.cosmic-guide small{font-size:8px;margin-top:4px;line-height:1.5}.cosmic-primary,.cosmic-secondary{min-height:48px;font-size:11px;padding:11px 16px}.cosmic-intro{padding:10px 12px;font-size:10px;line-height:1.75;margin-bottom:13px}.cosmic-panel .cosmic-question{font-size:17px;margin:6px 0 13px;line-height:1.6}.cosmic-step-label{font-size:9px}.cosmic-choices{gap:9px}.cosmic-choice{min-height:51px;padding:10px;gap:9px;font-size:11px;border-radius:11px}.cosmic-choice-number{width:22px;height:22px;flex-basis:22px}.cosmic-choice-badge{font-size:7px;padding:4px 5px}.cosmic-help{min-height:44px;font-size:10px;margin-top:5px}.cosmic-keyboard{font-size:8px;margin-top:5px;line-height:1.6}.cosmic-hint{font-size:10px;padding:10px 12px}.cosmic-range-panel{padding-top:8px}.cosmic-range-label{font-size:10px}.cosmic-range-value,.cosmic-range-goal{font-size:9px}.cosmic-range-goal{margin-bottom:12px}.cosmic-footer{margin-top:12px;gap:7px}.cosmic-footer p{font-size:7px;max-width:67%}.cosmic-restart{font-size:8px;min-height:44px;padding-inline:4px}.cosmic-learn-star{float:right;margin:0 4px 0 8px;font-size:36px}.cosmic-panel .cosmic-learn-title{font-size:20px}.cosmic-lesson{font-size:11px;line-height:1.9;margin-bottom:12px}.cosmic-sources{font-size:9px;margin-bottom:14px}.cosmic-next-note{font-size:9px;margin-bottom:12px}.cosmic-done{padding-top:3px}.cosmic-panel .cosmic-done-title{font-size:24px}.cosmic-done .cosmic-body{margin-bottom:20px}}
@media(max-width:360px){.cosmic-header{gap:5px;padding-right:48px}.cosmic-title{font-size:18px}.cosmic-kicker{font-size:5.5px}.cosmic-language{min-width:70px;font-size:9px}.cosmic-figure{height:210px}.cosmic-scene-title{font-size:15px}.cosmic-guide label{padding-inline:7px;gap:5px}.cosmic-guide strong{font-size:9px}.cosmic-choice{font-size:10px}.cosmic-choice-badge{font-size:6px}}
@media(max-height:520px) and (min-width:621px){.cosmic-shell{padding:15px 18px 12px}.cosmic-header{margin-bottom:11px}.cosmic-title{font-size:25px}.cosmic-kicker{font-size:6px;margin-bottom:5px}.cosmic-timeline{margin-bottom:12px}.cosmic-timeline>li{min-height:27px}.cosmic-layout{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:16px;align-items:start}.cosmic-figure{position:sticky;top:5px;min-height:0;height:260px}.cosmic-scene-meta{padding:13px 15px 0}.cosmic-scene-title{font-size:17px;margin:8px 15px 0}.cosmic-caption{font-size:9px;padding:35px 15px 13px}.cosmic-panel{padding-top:0}.cosmic-panel h3{font-size:20px;margin-top:6px}.cosmic-guide{margin:15px 0}.cosmic-intro{margin-bottom:13px}.cosmic-panel .cosmic-question{font-size:16px;margin-bottom:12px}.cosmic-choice{min-height:49px;padding:9px 11px}.cosmic-choices{gap:8px}.cosmic-primary{min-height:48px}.cosmic-footer{margin-top:12px}.cosmic-done{padding-top:0}}
.cosmic-dialog.cosmic-asleep *,.cosmic-dialog.cosmic-asleep *:after,.cosmic-dialog:not([open]) *{animation-play-state:paused!important}
html[data-motion=off] .cosmic-dialog,html[data-motion=off] .cosmic-dialog *,html[data-motion=off] .cosmic-dialog *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
@media(prefers-reduced-motion:reduce){.cosmic-dialog,.cosmic-dialog *,.cosmic-dialog *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.cosmic-art{touch-action:pan-y}.cosmic-art.cosmic-draggable{cursor:ew-resize}.cosmic-art.cosmic-dragging{cursor:grabbing;box-shadow:inset 0 0 0 2px #dced88a8}.cosmic-drag-hint{display:block;width:max-content;max-width:100%;margin-top:8px;padding:5px 8px;border:1px solid #dced8860;border-radius:7px;background:#132339b3;color:#e0eda8;font-size:9px;line-height:1.5}.cosmic-caption-text{display:block}.cosmic-dragging circle,.cosmic-dragging g{transition-duration:.12s}
@media(max-width:620px){.cosmic-drag-hint{font-size:7px;padding:4px 6px;margin-top:5px}}
/* Keep focus scrolling inside the shell so the close control never scrolls away. */
.cosmic-dialog{overflow:clip}

/* Clear results stay on screen until the learner chooses to move on. */
.cosmic-feedback{margin:0 0 20px;padding:18px;border:2px solid #39724a;border-radius:18px;background:#eaf6dc;color:#1d452b;animation:cosmic-feedback-in .25s ease-out both}
.cosmic-feedback[data-outcome=retry]{border-color:#ac583b;background:#fff0e1;color:#73371f}
.cosmic-feedback-heading{display:flex;align-items:center;gap:12px}
.cosmic-feedback-icon{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;border-radius:50%;background:#27663f;color:#fff;font:800 29px/1 sans-serif}
.cosmic-feedback[data-outcome=retry] .cosmic-feedback-icon{background:#9c482a}
.cosmic-feedback-title{margin:0;font-size:24px;line-height:1.5;font-weight:800;scroll-margin-top:70px}
.cosmic-feedback-title:focus{outline:none}
.cosmic-feedback-body{margin:13px 0 0;font-size:16px;line-height:1.85}
.cosmic-feedback-next{margin-top:18px;background:#fffdf2}
.cosmic-choice.cosmic-answer-correct{border:2px solid #39724a;background:#eaf6dc;color:#1d452b}
.cosmic-choice.cosmic-answer-wrong{border:2px solid #ac583b;background:#fff0e1;color:#73371f}
.cosmic-answer-correct .cosmic-choice-number{background:#27663f;color:#fff;border-color:#27663f}
.cosmic-answer-wrong .cosmic-choice-number{background:#9c482a;color:#fff;border-color:#9c482a}
.cosmic-choice:disabled{cursor:default;transform:none;box-shadow:none}
.cosmic-primary:disabled{opacity:.55;cursor:default;transform:none;box-shadow:none}
.cosmic-range:disabled{cursor:default}
.cosmic-body,.cosmic-lesson,.cosmic-intro{font-size:16px;line-height:1.9}
.cosmic-primary,.cosmic-secondary,.cosmic-choice{font-size:16px;line-height:1.65}
.cosmic-panel .cosmic-question{font-size:22px;line-height:1.65;scroll-margin-top:70px}
.cosmic-guide legend,.cosmic-guide strong,.cosmic-help,.cosmic-range-label,.cosmic-range-value,.cosmic-range-goal,.cosmic-next-note,.cosmic-restart{font-size:14px}
.cosmic-guide small,.cosmic-keyboard,.cosmic-sources,.cosmic-footer p{font-size:12px}
.cosmic-guide label{align-items:flex-start}
.cosmic-guide input{flex-shrink:0;margin-top:3px}
.cosmic-hint{font-size:15px;line-height:1.85}
.cosmic-step-label,.cosmic-chapter-label,.cosmic-era{font-size:12px}
.cosmic-caption{font-size:14px;line-height:1.75}
.cosmic-drag-hint{font-size:12px}
.cosmic-choice{display:grid;grid-template-columns:28px minmax(0,1fr);gap:5px 12px;padding:13px}
.cosmic-choice-number{width:27px;height:27px;font-size:13px}
.cosmic-choice-badge{grid-column:2;width:max-content;font-size:12px;padding:4px 7px}
.cosmic-language{font-size:14px}
.cosmic-range-note{margin:0 0 16px;color:#58657a;font-size:12px;line-height:1.75}
.cosmic-more{margin:0 0 16px;padding:12px 14px;border:1px solid #c9bddc;border-radius:12px;background:#f1ebf7;color:#354a63;font-size:14px;line-height:1.85}
.cosmic-more summary{cursor:pointer;min-height:32px;font-weight:700}
.cosmic-detail{margin:9px 0 0}
.cosmic-more summary:focus-visible,.cosmic-sources summary:focus-visible{outline:3px solid #815cb8;outline-offset:3px}
@keyframes cosmic-feedback-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media(max-width:850px){.cosmic-layout{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr)}.cosmic-panel .cosmic-question{font-size:20px}.cosmic-caption{font-size:14px}.cosmic-scene-title{font-size:19px}.cosmic-body,.cosmic-lesson,.cosmic-intro{font-size:15px}.cosmic-primary,.cosmic-secondary,.cosmic-choice{font-size:15px}.cosmic-guide strong{font-size:14px}.cosmic-guide small{font-size:12px}.cosmic-feedback-title{font-size:22px}}
@media(max-width:620px){.cosmic-layout{grid-template-columns:1fr}.cosmic-figure{height:280px}.cosmic-caption{font-size:14px;line-height:1.65;padding:48px 15px 13px}.cosmic-chapter-label,.cosmic-era{font-size:11px}.cosmic-scene-title{font-size:18px}.cosmic-drag-hint{font-size:11px}.cosmic-guide{grid-template-columns:1fr}.cosmic-guide label{padding:12px;min-height:58px}.cosmic-guide input{width:18px;height:18px;margin-top:3px}.cosmic-guide strong{font-size:15px}.cosmic-guide small{font-size:13px}.cosmic-guide legend{font-size:14px}.cosmic-primary,.cosmic-secondary,.cosmic-choice{font-size:16px}.cosmic-body,.cosmic-lesson,.cosmic-intro{font-size:15px;line-height:1.85}.cosmic-panel .cosmic-question{font-size:20px}.cosmic-choice{padding:12px;gap:5px 10px;min-height:56px}.cosmic-choice-badge{font-size:11px}.cosmic-feedback{padding:15px;margin-bottom:17px}.cosmic-feedback-title{font-size:22px}.cosmic-feedback-body{font-size:15px}.cosmic-feedback-icon{width:36px;height:36px;flex-basis:36px;font-size:25px}.cosmic-range-label{flex-wrap:wrap;gap:6px 12px;font-size:14px}.cosmic-range-value,.cosmic-range-goal,.cosmic-help,.cosmic-hint,.cosmic-next-note{font-size:14px}.cosmic-step-label{font-size:12px}.cosmic-keyboard,.cosmic-sources,.cosmic-range-note{font-size:12px}.cosmic-language{font-size:14px;min-width:82px}.cosmic-footer{align-items:flex-start;flex-wrap:wrap}.cosmic-footer p{max-width:none;font-size:11px}.cosmic-restart{font-size:12px}.cosmic-panel .cosmic-learn-title{font-size:22px}}
@media(max-width:360px){.cosmic-header{gap:6px}.cosmic-language{min-width:76px;font-size:13px}.cosmic-figure{height:285px}.cosmic-choice{font-size:15px}.cosmic-feedback-title{font-size:20px}.cosmic-feedback{padding:13px}}
@media(prefers-reduced-motion:reduce){.cosmic-feedback{animation:none}}