:root{--bg:#151519;--panel:#222329;--panel2:#1c1d22;--line:#393b45;--text:#f3f1e8;--muted:#aeb5c5;--accent:#a3d9a5;--soft:#2a4232;--green:#8fd4ac;--red:#f09b8e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid var(--line);background:transparent;color:inherit}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}body>aside{position:fixed;inset:0 auto 0 0;width:220px;border-right:1px solid var(--line);background:var(--panel2);padding:32px 20px;display:flex;flex-direction:column}.brand{color:var(--accent);text-decoration:none;display:flex;gap:12px;align-items:center;font-size:21px;font-weight:650}.brand-icon{display:grid;place-items:center;width:36px;height:43px;border:1px solid var(--accent);font:25px Georgia,serif}.brand small{display:block;font-size:8px;letter-spacing:1.5px;font-weight:500}.subject{font-size:9px;letter-spacing:1.5px;color:var(--muted);margin:46px 0 15px}nav{display:grid;gap:7px}nav button{text-align:left;padding:12px 10px;border-color:transparent;display:flex;align-items:center;justify-content:space-between;font-size:13px}nav button span{color:var(--muted);font-size:11px}nav button:hover{background:#ffffff05}nav button.active{background:var(--soft);color:var(--accent)}.aside-note{margin-top:auto;padding-top:24px;color:var(--muted);font-size:11px}.aside-note small{font-size:10px}.status-dot{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%;margin-right:5px}main{margin-left:220px;padding:30px 40px;max-width:1650px}header{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:48px}.breadcrumb{font-size:10px;letter-spacing:1.6px;color:var(--muted)}.breadcrumb span{margin:0 12px;color:#555965}.version{font-size:9px;letter-spacing:1px;border:1px solid var(--line);padding:5px 8px;color:var(--muted)}.page-title{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:26px}.eyebrow{font-size:10px;color:var(--accent);letter-spacing:1.8px;margin-bottom:9px}h1{font-size:clamp(28px,3.5vw,44px);line-height:1.17;letter-spacing:-1.4px;margin:0 0 12px;font-weight:650}.page-title p{font-size:16px;color:var(--muted);margin:0}.progress-pill{border:1px solid var(--line);padding:8px 12px;color:var(--muted);white-space:nowrap;font-size:12px}.mode-switch{display:flex;gap:6px;margin-bottom:22px;flex-wrap:wrap}.mode-switch button{font-size:15px;padding:9px 14px}.mode-switch button[aria-pressed=true]{color:var(--accent);border-color:var(--accent);background:var(--soft)}.learning-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:22px;align-items:start}.question-card{background:var(--panel);border:1px solid var(--line)}.question-top{display:flex;justify-content:space-between;gap:16px;padding:14px 24px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.prompt{padding:28px 24px 24px}.question-label{font-size:12px;letter-spacing:1.5px;color:var(--muted)}h2{margin:0;font-size:21px;line-height:1.35;letter-spacing:-.4px}.prompt h2{font-size:clamp(25px,3vw,36px);margin-top:9px}.prompt h2.definition-title{font-size:26px;line-height:1.6;font-weight:500}.answers{display:grid;gap:10px;padding:0 24px 24px}.answer{display:flex;align-items:center;gap:18px;padding:20px;text-align:left;line-height:1.65;font-size:20px;min-height:92px;background:var(--panel2);position:relative}.answer:hover:not(:disabled){border-color:#777b87}.letter{display:grid;place-items:center;width:34px;height:34px;border:1px solid #4a4c55;flex:none;font-size:14px;color:var(--muted)}.answer.selected{border-color:var(--accent);background:var(--soft)}.answer.selected .letter{background:var(--accent);border-color:var(--accent);color:#151519}.answer:disabled{opacity:1}.answer.correct{border-color:var(--green);background:#24382d}.answer.wrong{border-color:var(--red);background:#392827}.answer-mark{margin-left:auto;font-size:22px}.answer.correct .answer-mark{color:var(--green)}.answer.wrong .answer-mark{color:var(--red)}.question-actions{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border-top:1px solid var(--line);gap:16px}.keyboard{font-size:10px;color:var(--muted)}.primary{background:var(--accent);border-color:var(--accent);color:#151519;font-size:16px;font-weight:550;padding:12px 22px;min-height:44px}.primary:hover:not(:disabled){background:#bbe9bc}.secondary{font-size:13px;padding:10px 15px}.feedback{padding:16px 24px;font-size:17px}.feedback.success{color:var(--green)}.feedback.failure{color:var(--red)}.feedback.neutral{color:var(--muted)}.insight{padding:24px 20px;border:1px solid var(--line);background:#1c1d22}.insight h2{font-size:20px;margin-bottom:15px}.insight p{font-size:17px;line-height:1.75;color:var(--muted)}.insight-icon{font-size:42px;line-height:1;color:var(--accent);margin-bottom:24px}.insight-divider{border-top:1px solid var(--line);margin:24px 0}.distinction{border-left:2px solid var(--accent);padding-left:12px;color:var(--text)!important}.fact{margin-top:22px}.fact>span,.comparison>span{display:block;color:var(--muted);font-size:12px;letter-spacing:1px;margin-bottom:7px}.fact strong{font-size:16px;font-weight:500}.fact ul{font-size:16px;padding-left:16px;margin:0;color:var(--text)}.comparison{padding-top:16px;margin-top:18px;border-top:1px solid var(--line)}footer{display:flex;justify-content:space-between;gap:18px;margin-top:40px;border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:10px}.text-button{padding:0;border:0;color:var(--muted);font-size:11px;text-decoration:underline;text-underline-offset:4px}.empty{text-align:center;padding:70px 20px}.empty p{color:var(--muted);font-size:13px;max-width:420px;margin:20px auto}.empty-icon{color:var(--green);font-size:48px}.search{display:block;font-size:12px;color:var(--muted);margin-bottom:24px}.search input{display:block;margin-top:8px;width:min(100%,600px);padding:13px;background:var(--panel);border:1px solid var(--line);color:var(--text)}.catalog{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}.catalog-card{border:1px solid var(--line);padding:20px;background:var(--panel)}.catalog-card[hidden]{display:none}.catalog-card summary{display:flex;justify-content:space-between;gap:12px;cursor:pointer;align-items:center;list-style:none}.catalog-card summary span:first-child{font-size:10px;color:var(--muted)}.catalog-card h2{font-size:18px;margin-top:4px}.catalog-score{font-size:10px;color:var(--muted);white-space:nowrap}.catalog-card p{font-size:17px;line-height:1.7}.catalog-card .secondary{margin-top:14px}.results{display:grid;gap:14px;margin-bottom:24px}.result{border:1px solid var(--line);padding:24px;background:var(--panel)}.result-head{display:flex;align-items:center;gap:15px}.result-head>span{color:var(--muted);font-size:12px}.result-head b{margin-left:auto}.result p{font-size:17px;line-height:1.7;color:var(--muted)}.result.success b{color:var(--green)}.result.failure b{color:var(--red)}dialog{color:var(--text);background:var(--panel);border:1px solid var(--line);padding:28px;width:min(600px,calc(100vw - 32px));max-height:85vh}dialog::backdrop{background:#000b}dialog p,dialog li{font-size:13px;color:var(--muted)}dialog a{color:var(--accent)}.dialog-close{float:right;font-size:24px;border:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(max-width:1100px){main{padding:24px}.learning-grid{grid-template-columns:1fr}.insight:not(:has(.fact)){display:none}.insight:has(.fact){display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}.insight .eyebrow,.insight h2,.insight>.distinction,.insight .comparison{grid-column:1/-1}.fact{margin-top:8px}}
@media(max-width:700px){body>aside{position:static;width:100%;padding:18px 16px 12px;border-right:0;border-bottom:1px solid var(--line);gap:14px}.brand{font-size:18px}.brand-icon{height:34px;width:30px;font-size:21px}.subject,.aside-note{display:none}nav{display:flex;gap:5px;overflow-x:auto}nav button{font-size:11px;padding:9px 8px;white-space:nowrap}nav button span{display:none}main{margin:0;padding:22px 16px}header{margin-bottom:26px}.breadcrumb{font-size:8px;letter-spacing:1px}.breadcrumb span{margin:0 5px}.version{display:none}h1{font-size:31px}.page-title{align-items:flex-start}.progress-pill{font-size:10px;padding:6px 8px}.question-top{padding:12px 16px;font-size:12px}.prompt{padding:22px 16px}.answers{padding:0 12px 16px;gap:8px}.answer{padding:17px 14px;font-size:18px;gap:13px;min-height:88px}.letter{width:29px;height:29px;font-size:13px}.question-actions{padding:15px 16px;justify-content:flex-end}.keyboard{display:none}.insight:has(.fact){display:block}.insight .fact{margin-top:18px}.catalog{grid-template-columns:1fr}.catalog-card{padding:16px}footer{flex-direction:column;gap:8px}}
#subject-tabs{display:flex;border:1px solid var(--line);padding:3px;gap:3px;margin-bottom:20px}#subject-tabs button{flex:1;padding:7px 9px;font-size:12px;border-color:transparent}#subject-tabs button[aria-pressed=true]{background:var(--accent);color:#151519}.breadcrumb b{font-weight:400}
@media(max-width:700px){#subject-tabs{margin:0;max-width:240px}.subject{display:none}}
.learning-grid>.question-card{grid-column:1;grid-row:1}.order-panel{grid-column:2;grid-row:1;background:var(--panel2);border:1px solid var(--line);padding:22px 18px}.order-panel h2{font-size:19px;margin-bottom:20px}.order-panel p{font-size:14px;line-height:1.7;color:var(--muted);margin:18px 0 0}.order-choices{display:grid;gap:8px}.order-choices button{display:flex;align-items:center;gap:10px;padding:12px;text-align:left;font-size:15px;min-height:50px}.order-choices button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:var(--soft)}.order-radio{width:15px;height:15px;border:1px solid var(--muted);border-radius:50%;flex:none}.order-choices button[aria-pressed=true] .order-radio{border:4px solid var(--accent)}.learning-grid>.insight{grid-column:1/-1;grid-row:2;display:block;margin-top:0}.learning-grid>.insight .insight-icon{font-size:30px;margin-bottom:12px}.learning-grid>.insight p{max-width:800px}.learning-grid>.insight .fact{display:inline-block;vertical-align:top;width:31%;padding-right:20px}.learning-grid>.insight .insight-divider{margin:15px 0}
@media(max-width:1100px){.learning-grid{grid-template-columns:minmax(0,1fr) 235px}}
@media(max-width:850px){.learning-grid{grid-template-columns:minmax(0,1fr)}.learning-grid>.order-panel{grid-column:1;grid-row:2}.learning-grid>.insight{grid-column:1;grid-row:3}.order-choices{grid-template-columns:repeat(3,minmax(0,1fr))}.order-panel p{margin-top:12px}}
@media(max-width:700px){.learning-grid>.insight .fact{display:block;width:100%;padding-right:0}.order-choices{grid-template-columns:1fr}.order-panel{padding:18px}}

.knowledge-panel{background:var(--panel);border:1px solid var(--line);padding:24px;min-width:0}
.compact-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:23px}.compact-heading h2{font-size:21px;letter-spacing:-.3px}.compact-heading>span{color:var(--muted);font-size:13px}
.compact-endpoints{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:11px;margin-bottom:9px}
.knowledge-matrix{display:grid;grid-template-columns:repeat(var(--topic-count),minmax(0,1fr));gap:4px;position:relative;padding-bottom:11px;margin-bottom:8px;min-width:0}.knowledge-matrix:after{content:'';position:absolute;left:0;right:0;bottom:0;border-top:1px solid var(--line);height:5px;background:repeating-linear-gradient(90deg,transparent 0,transparent calc(100% / var(--topic-count) - 1px),var(--line) calc(100% / var(--topic-count) - 1px),var(--line) calc(100% / var(--topic-count)))}
.knowledge-cell{--knowledge-color:#42434b;position:relative;width:100%;height:58px;min-width:0;padding:0;background:var(--knowledge-color);border:1px solid #ffffff0b;transition:filter .15s,transform .15s}.knowledge-cell.red,.knowledge-detail.red{--knowledge-color:#bb675f}.knowledge-cell.yellow,.knowledge-detail.yellow{--knowledge-color:#aaa050}.knowledge-cell.green,.knowledge-detail.green{--knowledge-color:#4f925f}.knowledge-cell:hover{filter:brightness(1.25)}.knowledge-cell[aria-pressed=true]{box-shadow:inset 0 -4px var(--text)}.knowledge-cell.is-included:before{content:'';position:absolute;top:4px;right:3px;width:4px;height:4px;border-radius:50%;background:var(--accent)}.knowledge-cell:focus-visible{outline-offset:2px;z-index:1}
.knowledge-detail{--knowledge-color:#777981;border:1px solid var(--line);padding:22px 20px 16px;background:var(--panel2)}.knowledge-detail-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.knowledge-detail h3{font-size:20px;margin:0 0 4px;line-height:1.4}.knowledge-detail-heading p{margin:0;font-size:14px;color:var(--muted)}.knowledge-detail-score{text-align:right;flex:none}.knowledge-detail-score strong{display:block;font-size:28px;line-height:1.1;font-weight:600;letter-spacing:-1px}.knowledge-detail-score span{display:block;font-size:11px;color:var(--muted);margin-top:6px}.knowledge-detail-stats{display:flex;gap:12px 28px;flex-wrap:wrap;margin:19px 0 12px;color:var(--muted);font-size:12px}.knowledge-detail-stats b{font-weight:500;color:var(--text)}.knowledge-detail-status{margin-left:auto}.knowledge-meter{height:3px;background:var(--line);overflow:hidden}.knowledge-meter span{display:block;height:100%;background:var(--knowledge-color);transition:width .25s}.knowledge-detail-actions{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:16px}.knowledge-detail-actions .secondary{font-size:13px;padding:8px 11px}.knowledge-detail-actions button[aria-pressed=true]{color:var(--accent);border-color:var(--accent)}.knowledge-detail-actions>span{font-size:11px;color:var(--muted)}
.knowledge-legend{display:flex;gap:10px 20px;flex-wrap:wrap;padding-top:17px;font-size:12px;color:var(--muted)}.knowledge-legend span{display:flex;align-items:center;gap:7px}.knowledge-legend i{width:9px;height:9px;background:#777981}.knowledge-legend i.red{background:#bb675f}.knowledge-legend i.yellow{background:#aaa050}.knowledge-legend i.green{background:#4f925f}.knowledge-legend b{font-weight:500;color:var(--text)}.knowledge-explainer{font-size:12px;color:var(--muted);margin-top:15px}.knowledge-explainer summary{cursor:pointer;width:fit-content}.knowledge-explainer p{max-width:850px;line-height:1.7}
.knowledge-start{margin-top:22px;padding:22px 24px;border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--panel2)}.knowledge-start h2{font-size:22px}.knowledge-start p{font-size:15px;color:var(--muted);margin:8px 0 0;max-width:660px}.knowledge-start .primary{flex:none}.knowledge-tools{display:flex;gap:12px 18px;flex-wrap:wrap;margin-top:14px}.knowledge-tools .text-button{font-size:12px}
@media(max-width:700px){.knowledge-panel{padding:18px 14px}.compact-heading{align-items:flex-start;gap:12px;margin-bottom:18px}.compact-heading h2{font-size:18px}.compact-heading>span{font-size:11px;text-align:right;max-width:120px}.knowledge-matrix{grid-template-columns:repeat(var(--mobile-count),minmax(0,1fr));gap:4px}.knowledge-cell{height:43px}.knowledge-matrix:after{background:none}.knowledge-detail{padding:18px 14px}.knowledge-detail h3{font-size:18px}.knowledge-detail-score strong{font-size:25px}.knowledge-detail-stats{gap:8px 15px}.knowledge-detail-status{margin-left:0;width:100%}.knowledge-detail-actions>span{display:none}.knowledge-start{align-items:stretch;flex-direction:column;padding:20px}.knowledge-start .primary{width:100%}.knowledge-legend{font-size:11px}}
.home-heading{margin-bottom:32px}.home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.home-card{display:flex;flex-direction:column;min-width:0;border:1px solid var(--line);background:var(--panel);transition:border-color .2s}.home-card:hover{border-color:#788c7a}.home-card-art{position:relative;display:grid;place-items:center;height:210px;background:var(--panel2);overflow:hidden;border-bottom:1px solid var(--line)}.home-card-art:before{content:'';position:absolute;width:170px;height:170px;border:1px solid #a3d9a517;border-radius:50%}.home-card-art svg{width:128px;height:128px;color:var(--accent);position:relative}.home-card-art .icon-detail{opacity:.4}.home-card-art>span{position:absolute;bottom:17px;right:22px;color:var(--muted);font-size:12px}.home-card-body{display:flex;flex:1;flex-direction:column;padding:28px}.home-card h2{font-size:30px;margin-bottom:12px}.home-card p{font-size:17px;line-height:1.7;color:var(--muted);margin:0 0 26px;max-width:48ch}.home-card .eyebrow{font-size:10px;line-height:1.6}.home-card-progress{margin-top:auto;margin-bottom:24px;color:var(--muted);font-size:12px}.home-card-progress>div{height:3px;background:var(--line);margin-top:10px}.home-card-progress i{display:block;height:100%;background:var(--accent)}.home-card .primary{width:100%;display:flex;justify-content:center;align-items:center;gap:16px;min-height:48px}.home-zmrd{margin-top:24px;display:flex;align-items:center;gap:24px;padding:27px 28px;border:1px solid var(--line);background:var(--panel2);color:var(--text);text-decoration:none;transition:border-color .2s}.home-zmrd:hover{border-color:#ffae42}.home-zmrd-icon{display:grid;place-items:center;width:58px;height:64px;flex:none;color:#ffae42;border:1px solid #ffae42;background:#352b20;font:700 45px/1 Georgia,serif}.home-zmrd .eyebrow{color:#ffae42;font-size:9px;margin-bottom:6px}.home-zmrd h2{font-size:22px}.home-zmrd p{margin:7px 0 0;font-size:15px;line-height:1.65;color:var(--muted);max-width:65ch}.home-zmrd-cta{margin-left:auto;white-space:nowrap;color:#ffae42;font-size:15px;display:flex;gap:16px;align-items:center;flex:none}#subject-tabs[data-active=home]:before{opacity:0}@media(max-width:900px){.home-card-body{padding:24px 22px}.home-zmrd{flex-wrap:wrap}.home-zmrd>div{flex:1;min-width:180px}.home-zmrd-cta{margin-left:82px}}@media(max-width:700px){.home-grid{grid-template-columns:1fr;gap:18px}.home-heading{margin-bottom:24px}.home-card-art{height:165px}.home-card-art svg{width:112px;height:112px}.home-card-art:before{width:140px;height:140px}.home-card h2{font-size:28px}.home-card p{font-size:17px}.home-zmrd{padding:23px 20px;gap:18px}.home-zmrd-icon{width:48px;height:56px;font-size:39px}.home-zmrd>div{min-width:150px}.home-zmrd-cta{margin-left:66px;font-size:14px}}
.promo-dialog{position:fixed;width:min(570px,calc(100vw - 32px));padding:34px;background:var(--panel);border:1px solid var(--line);max-height:calc(100dvh - 32px);overflow-y:auto;box-shadow:0 24px 90px #0008}.promo-dialog::backdrop{background:#000b;backdrop-filter:blur(4px)}.promo-close{position:absolute;right:14px;top:12px;width:34px;height:34px;border:0;font-size:26px;color:var(--muted)}.promo-brand{display:grid;place-items:center;width:52px;height:58px;border:1px solid #f6dc3c;color:#f6dc3c;background:#363222;font:700 39px/1 Georgia,serif;margin-bottom:24px}.promo-dialog .eyebrow{color:#e7d875;font-size:10px;line-height:1.7}.promo-dialog h2{font-size:34px;line-height:1.15;letter-spacing:-1px;margin:12px 0 18px}.promo-dialog p{font-size:18px;line-height:1.65;color:var(--muted);margin:0}.promo-tags{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0 26px}.promo-tags span{border:1px solid var(--line);padding:6px 9px;font-size:12px;color:var(--muted)}.promo-actions{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap}.promo-actions a{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.promo-actions .secondary{font-size:14px;flex:1;min-height:46px}.promo-actions .primary{flex:1;white-space:nowrap}.promo-dialog[open]{animation:promo-enter .28s cubic-bezier(.16,1,.3,1)}@keyframes promo-enter{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@media(max-width:550px){.promo-dialog{padding:28px 22px}.promo-dialog h2{font-size:30px}.promo-actions{flex-direction:column}.promo-dialog p{font-size:17px}}@media(prefers-reduced-motion:reduce){.promo-dialog[open]{animation:none}.promo-dialog::backdrop{backdrop-filter:none}}
.promo-actions .primary{background:#f6dc3c;border-color:#f6dc3c;color:#151519}.promo-actions .primary:hover{background:#ffe766;border-color:#ffe766}
main{position:relative;perspective:1400px}#app,.section-ghost{transform-origin:50% 20%;backface-visibility:hidden}body{overflow-x:hidden}
#subject-tabs{position:relative;isolation:isolate}#subject-tabs:before{content:'';position:absolute;z-index:-1;inset:3px auto 3px 3px;width:calc((100% - 9px)/2);background:var(--accent);transform:translateX(0);transition:transform .48s cubic-bezier(.16,1,.3,1)}#subject-tabs[data-active=genres]:before{transform:translateX(calc(100% + 3px))}#subject-tabs button{transition:color .2s}#subject-tabs button[aria-pressed=true]{background:transparent}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}#subject-tabs:before,#subject-tabs button{transition:none}}

.answer>span:nth-child(2){max-width:68ch;overflow-wrap:anywhere}.answers{gap:14px}.insight p,.catalog-card p,.result p{max-width:70ch}.order-choices button{overflow-wrap:anywhere}@media(max-width:700px){.prompt h2.definition-title{font-size:23px}.insight p,.catalog-card p,.result p{font-size:16px}.answers{gap:11px}}

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