/* Three specific product pages, expanded from the approved StudyCat v3 panels.
   The shared site shell and other SEO surfaces retain their own styles. */
.sp-page{--st-violet:#671ff6;--st-deep:#4c14c1;--st-ink:#272439;--st-quiet:#625d70;--st-line:#e6e0ef;--sp-ink:#272439;--sp-muted:#625d70;--sp-lilac:#f2eefb;--sp-line:#e6e0ef;--sp-lime:#bfff64;color:var(--sp-ink);font:400 17px/1.65 Manrope,sans-serif;background:#faf9fe;overflow:clip}
.sp-page *,.sp-page *::before,.sp-page *::after{box-sizing:border-box}
.sp-page .sb-body{margin:0;padding:0 0 24px;border-radius:0;background:#faf9fe}
.sp-page .sp-wrap{width:min(1320px,calc(100% - 80px));margin-inline:auto}
.sp-page h1,.sp-page h2,.sp-page h3,.sp-page p{margin:0}
.sp-page h1,.sp-page h2{text-wrap:balance}
.sp-page h2{font:700 clamp(30px,2.4vw,42px)/1.2 Manrope,sans-serif;letter-spacing:-.025em}
.sp-page h3{font:700 21px/1.4 Manrope,sans-serif;letter-spacing:-.015em}
.sp-page p{text-wrap:pretty}
.sp-page a{color:var(--st-violet);text-decoration:none;text-underline-offset:4px}
.sp-page button,.sp-page textarea{font:inherit}
.sp-page button{cursor:pointer}
.sp-page svg{flex:none}
.sp-page ::selection{color:var(--sp-ink);background:var(--sp-lime)}
.sp-page :is(a,button,textarea,summary):focus-visible{outline:3px solid var(--st-violet);outline-offset:5px}
.sp-page [id]{scroll-margin-top:100px}
.sp-page .sp-topline{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-block:26px 22px}
.sp-breadcrumb{display:flex;align-items:center;gap:12px;color:var(--sp-muted);font-size:13px;line-height:1.5;flex-wrap:wrap}
.sp-breadcrumb a:hover{text-decoration:underline}
.sp-motion{display:flex;align-items:center;gap:7px;border:0;background:transparent;color:var(--sp-muted);padding:6px 0;font-size:12px!important;line-height:1.5}
.sp-motion[hidden]{display:none}
.sp-motion svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.sp-motion:hover{color:var(--st-violet)}
.sp-page .sp-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.06fr);gap:50px;align-items:center;background:var(--sp-lilac);padding:48px 52px 30px;border-radius:36px;overflow:hidden}
.sp-hero-copy{min-width:0;align-self:stretch;display:flex;flex-direction:column;align-items:flex-start}
.sp-page h1{font:800 clamp(30px,2.15vw,40px)/1.22 Unbounded,Manrope,sans-serif;letter-spacing:-.035em;max-width:19ch}
.sp-page .sp-lead{font-size:21px;line-height:1.5;max-width:36ch;margin-top:22px}
.sp-page .sp-hero-detail{font-size:16px;line-height:1.65;color:var(--sp-muted);max-width:45ch;margin-top:14px}
.sp-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:24px;position:relative;z-index:1}
.sp-page .sp-button{display:inline-flex;justify-content:center;align-items:center;gap:13px;min-height:50px;padding:13px 23px;border:1px solid transparent;border-radius:100px;color:#fff;background:var(--st-violet);font:600 15px/1.45 Manrope,sans-serif;text-align:center;text-decoration:none;transition:background-color .18s,color .18s}
.sp-page .sp-button:hover{color:#fff;background:var(--st-deep)}
.sp-page .sp-button svg,.sp-paper-note svg,.sp-question-prompts svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sp-page .sp-text-link{display:inline-flex;align-items:center;gap:14px;font-size:14px;font-weight:600;line-height:1.5;color:var(--st-violet)}
.sp-page .sp-text-link:hover{text-decoration:underline}
.sp-page .sp-price{margin-top:12px;font-size:12px;color:var(--sp-muted);position:relative;z-index:1}
.sp-hero-cat{position:relative;width:min(410px,100%);aspect-ratio:3/2;margin:8px 0 -18px -10px;pointer-events:none}
.sp-hero-cat>img{display:block;width:100%;height:100%;object-fit:contain}
.sp-page .sp-assembly-cat{width:min(310px,100%);aspect-ratio:560/530;pointer-events:auto;margin:8px auto -14px}
.sp-assembly-cat [data-product-art]{width:100%;height:100%}
.sp-assembly-cat [data-assembly-trigger]{display:block;width:100%;height:100%;padding:0;border:0;background:transparent;border-radius:24px;cursor:pointer}
.sp-assembly-cat .gl-assembly-scene{display:block;width:100%;height:100%;overflow:visible}
.sp-page .sp-assembly-cat{width:min(310px,100%);aspect-ratio:560/530;pointer-events:auto;margin:8px auto -14px}
.sp-assembly-cat [data-product-art]{width:100%;height:100%}
.sp-assembly-cat [data-assembly-trigger]{display:block;width:100%;height:100%;padding:0;border:0;background:transparent;border-radius:24px;cursor:pointer}
.sp-assembly-cat .gl-assembly-scene{display:block;width:100%;height:100%;overflow:visible}
.sp-hero-proof{min-width:0;width:100%;align-self:center;padding-bottom:18px}
.sp-page .sp-hero-proof .sb-mini-app{width:100%;height:590px}
.sp-page .sp-hero-proof .sb-generator-app{height:610px}
.sp-page .sp-hero-proof .sb-solver-app,.sp-page .sp-hero-proof .sb-conversation-app{height:590px}
.sp-page .sp-benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px;padding:40px 28px 46px;border-bottom:1px solid var(--sp-line)}
.sp-page .sp-benefits h2{font:700 19px/1.45 Manrope,sans-serif;letter-spacing:-.015em}
.sp-page .sp-benefits p{font-size:15px;line-height:1.7;color:var(--sp-muted);margin-top:8px;max-width:38ch}
.sp-page .sp-section{padding-block:70px}
.sp-section-heading{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end;margin-bottom:34px}
.sp-section-heading>p{max-width:52ch;color:var(--sp-muted);font-size:17px;line-height:1.75}
.sp-page .sp-section-lead{font-size:19px;line-height:1.65;color:var(--sp-muted);margin-top:20px;max-width:42ch}
.sp-workflow{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}
.sp-process{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-direction:column;gap:0}
.sp-process>li{position:relative;display:grid;grid-template-columns:40px 1fr;gap:20px;padding-bottom:26px}
.sp-process>li:last-child{padding-bottom:0}
.sp-process>li:not(:last-child)::before{content:"";position:absolute;left:19px;top:43px;bottom:5px;width:1px;background:#d9cbea}
.sp-process>li>span{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#eee6fb;color:var(--st-violet);font-size:15px;font-weight:700}
.sp-process h3{font-size:18px;line-height:1.5;padding-top:5px}
.sp-process p{margin-top:5px;font-size:15px;line-height:1.65;color:var(--sp-muted);max-width:47ch}
.sp-plan-scene{background:var(--sp-lilac);padding:42px 42px 30px;border-radius:32px}
.sp-plan-paper{background:#fff;padding:32px 30px;border:1px solid #e6deed;border-radius:4px 4px 20px 4px;box-shadow:0 15px 30px rgba(46,22,77,.06)}
.sp-paper-top{display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--sp-muted);font-size:12px;line-height:1.5;padding-bottom:20px;border-bottom:1px solid var(--sp-line)}
.sp-plan-paper h3{font-size:21px;line-height:1.5;margin:23px 0}
.sp-page .sp-plan-intro{font-size:15px;font-weight:700;margin-top:15px}
.sp-plan-paper ol{display:flex;flex-direction:column;gap:18px;list-style:none;padding:0;margin:20px 0}
.sp-plan-paper li{display:flex;gap:13px;font-size:15px;line-height:1.65}
.sp-plan-paper li>span{font-weight:700;color:var(--st-violet)}
.sp-paper-note{display:flex;align-items:center;gap:9px;margin-top:24px;padding-top:18px;border-top:1px solid var(--sp-line);color:var(--st-violet);font-size:13px;font-weight:600}
.sp-page .sp-scene-caption{margin-top:23px;text-align:center;font-size:13px;line-height:1.6;color:var(--sp-muted)}
.sp-document-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:75px;align-items:center;padding:44px 48px;background:#fff;border-radius:32px}
.sp-document-sheet{padding:30px 34px 36px;background:#fff;border:1px solid var(--sp-line);border-radius:4px;box-shadow:0 12px 32px rgba(45,25,70,.045)}
.sp-document-sheet h3{font-size:21px;margin-block:25px 18px}
.sp-document-sheet>p{font-size:16px;line-height:1.9}
.sp-document-annotation{background:#f3edff;padding:16px 18px;border-radius:12px;color:#604782;font-size:13px;line-height:1.65;margin-top:25px}
.sp-document-guide{display:flex;flex-direction:column;gap:28px}
.sp-document-guide h3{font-size:20px}
.sp-document-guide p{font-size:16px;line-height:1.7;color:var(--sp-muted);margin-top:9px;max-width:42ch}
.sp-preparation{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px;border-bottom:1px solid var(--sp-line)}
.sp-preparation>div>p+p{margin-top:18px}
.sp-preparation p{color:var(--sp-muted);line-height:1.8}
.sp-preparation .sp-text-link{margin-top:22px}
.sp-prompt-quote{font-size:20px;line-height:1.6;background:var(--sp-lilac);border-radius:24px;padding:24px 28px;margin-block:24px;color:var(--sp-ink)}
.sp-solve-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
.sp-example{min-width:0;background:#fff;padding:30px;border-radius:24px;border:1px solid var(--sp-line)}
.sp-example-featured{padding:34px 36px}
.sp-example-meta{display:flex;justify-content:space-between;gap:15px;color:var(--sp-muted);font-size:13px;line-height:1.5;margin-bottom:18px}
.sp-example-meta>span:last-child{color:var(--st-violet)}
.sp-example h3{font-size:22px;line-height:1.5}
.sp-page .sp-example-result{display:inline-block;color:var(--sp-ink);background:#e9fbd7;padding:6px 13px;border-radius:8px;font-size:18px;line-height:1.6;font-weight:700;margin-top:21px}
.sp-example .sp-disclosure{margin-top:22px;border-top:1px solid var(--sp-line)}
.sp-disclosure summary{display:flex;justify-content:space-between;align-items:center;gap:24px;cursor:pointer;list-style:none;font-weight:600;line-height:1.5;padding:22px 0}
.sp-disclosure summary::-webkit-details-marker{display:none}
.sp-disclosure .sp-when-open{display:none}
.sp-disclosure[open]>summary .sp-when-open{display:inline}
.sp-disclosure[open]>summary .sp-when-closed{display:none}
.sp-disclosure summary:hover{color:var(--st-violet)}
.sp-disclosure-sign{position:relative;flex:none;width:16px;height:16px;color:var(--st-violet)}
.sp-disclosure-sign::before,.sp-disclosure-sign::after{content:"";position:absolute;inset:7px 0 auto;height:2px;background:currentColor;border-radius:2px}
.sp-disclosure-sign::after{transform:rotate(90deg)}
.sp-disclosure[open]>.sp-disclosure-sign::after,.sp-disclosure[open]>summary .sp-disclosure-sign::after{transform:none}
.sp-reasoning{margin:0;padding:0;list-style:none;counter-reset:reasoning;display:flex;flex-direction:column;gap:18px}
.sp-reasoning>li{counter-increment:reasoning;position:relative;padding-left:35px;font-size:15px;line-height:1.75}
.sp-reasoning>li::before{content:counter(reasoning);position:absolute;left:0;top:0;color:var(--st-violet);font-weight:700}
.sp-example-aside{padding:10px 25px}
.sp-example-aside>p:not(.sp-pullquote){color:var(--sp-muted);font-size:16px;line-height:1.8;margin-top:14px;max-width:42ch}
.sp-page .sp-pullquote{font-size:30px;font-weight:600;line-height:1.4;letter-spacing:-.025em;margin-block:30px}
.sp-pullquote em{font-style:normal;color:var(--st-violet)}
.sp-example-pair{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:26px}
.sp-question-stage{display:grid;grid-template-columns:1fr 1fr;gap:80px;background:var(--sp-lilac);padding:48px 52px;border-radius:32px;margin-block:50px 0}
.sp-question-form{background:#fff;padding:30px;border-radius:22px;align-self:start}
.sp-question-form>label{display:block;font-size:18px;font-weight:700;line-height:1.5;margin-bottom:15px}
.sp-question-form textarea{display:block;width:100%;min-height:170px;padding:15px 17px;resize:vertical;border:1px solid #cfc3df;border-radius:12px;color:var(--sp-ink);background:#fff;font-size:16px;line-height:1.7;caret-color:var(--st-violet)}
.sp-question-form textarea::placeholder{color:#756b80}
.sp-question-form textarea[aria-invalid=true]{border:2px solid #a62c43}
.sp-page .sp-form-help{font-size:13px;line-height:1.6;color:var(--sp-muted);margin-top:12px}
.sp-question-form>.sp-button{margin-top:22px;width:100%}
.sp-question-form>.sp-button:disabled{background:#d8c7ee;color:#473656;cursor:wait}
.sp-question-form>.sp-text-link{margin-top:16px;font-size:13px}
.sp-page .sp-form-error{color:#a62c43;font-size:14px;line-height:1.6}
.sp-form-error:not(:empty){margin-top:12px}
.sp-process-compact{margin-top:25px}
.sp-process-compact>li{padding-bottom:20px}
.sp-process-compact h3{font-size:17px}
.sp-process-compact p{font-size:14px}
.sp-page .sp-faq{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px}
.sp-page .sp-muted{color:var(--sp-muted);font-size:16px;line-height:1.7;margin-top:18px}
.sp-faq-list{border-top:1px solid var(--sp-line)}
.sp-faq-list>.sp-disclosure{border-bottom:1px solid var(--sp-line)}
.sp-faq-list summary{font-size:17px;line-height:1.6;padding-block:22px}
.sp-faq-list .sp-disclosure>p{color:var(--sp-muted);font-size:16px;line-height:1.8;padding-bottom:24px}
.sp-page .sp-closing{display:flex;justify-content:space-between;gap:60px;align-items:center;padding:50px 52px;border-radius:32px;background:#f0e8ff;color:var(--sp-ink);border:1px solid #ddcdf9;margin-block:12px 32px}
.sp-closing h2{max-width:24ch;font-size:36px;line-height:1.25}
.sp-closing p{color:#584275;max-width:56ch;font-size:16px;line-height:1.7;margin-top:15px}
.sp-closing>.sp-button{flex:none}
.sp-page .sp-button-lime{background:var(--sp-lime);color:var(--sp-ink)}
.sp-page .sp-button-lime:hover{background:#d2ff93;color:var(--sp-ink)}
.sp-closing :focus-visible{outline:3px solid var(--st-violet);outline-offset:5px}
.sp-related{display:flex;gap:24px;align-items:center;justify-content:space-between;padding-block:32px 24px;font-size:13px;line-height:1.5}
.sp-related p{color:var(--sp-muted)}
.sp-related a{display:flex;gap:10px}
.sp-related a:hover{text-decoration:underline}
.sp-catalog{border-top:1px solid var(--sp-line);margin-bottom:32px}
.sp-catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding-bottom:28px}
.sp-page .sp-catalog-grid h2{font-size:16px;margin-bottom:16px}
.sp-catalog-grid a{display:block;font-size:14px;line-height:1.6;margin-block:8px;color:var(--sp-muted)}
.sp-catalog-grid a:hover{text-decoration:underline;color:var(--st-violet)}
@media(max-width:700px){.sp-catalog-grid{grid-template-columns:1fr;gap:20px}}
.sp-page .sb-lesson{margin:0}
.sp-page .sb-lesson-grid{gap:50px}
.sp-page .sb-lesson-story h3{font-size:27px;line-height:1.35}
.sp-meaning-values{display:grid;grid-template-columns:1fr 1fr;background:#fff;border-radius:28px;padding:32px 40px;gap:50px}
.sp-meaning-values article>span{color:var(--sp-muted);font-size:15px;line-height:1.5}
.sp-page .sp-equation{font-size:27px;line-height:1.5;letter-spacing:-.02em;margin-block:12px}
.sp-equation strong{color:var(--st-violet)}
.sp-meaning-values article>p:last-child{font-size:15px;color:var(--sp-muted);line-height:1.7}
.sp-meaning-note{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px;margin-top:32px;padding:20px 4px}
.sp-meaning-note h3{font-size:23px}
.sp-meaning-note p{font-size:16px;line-height:1.8;color:var(--sp-muted)}
.sp-derivative-proof{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:start}
.sp-derivative-proof>div>p:last-child{font-size:16px;line-height:1.8;color:var(--sp-muted);margin-top:22px;max-width:43ch}
.sp-question-prompts{margin:28px 0 0;padding:0;list-style:none}
.sp-question-prompts li{border-bottom:1px solid #ded3ec}
.sp-question-prompts li:first-child{border-top:1px solid #ded3ec}
.sp-question-prompts button{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:16px 0;background:transparent;border:0;color:var(--st-violet);font-size:15px;font-weight:600;line-height:1.6;text-align:left}
.sp-question-prompts button:hover{color:var(--st-deep);text-decoration:underline;text-underline-offset:4px}
.sp-page pre{max-width:100%;overflow:auto;padding:20px;background:#f5f1fb;font-size:14px;line-height:1.6;border-radius:12px;margin-top:18px}
.sp-page .sb-chat-history{scrollbar-color:#cbb9e5 #fff}
body:has(.sp-page) .cost-bubble,body:has(.sp-page) .help-widget{display:none}
@media (max-width:1399px){.sp-page .sp-wrap{width:calc(100% - 64px)}.sp-page .sp-hero{padding:40px 38px 26px;gap:36px}.sp-page h1{font-size:32px}.sp-page .sp-lead{font-size:19px}.sp-hero-cat{width:360px}.sp-page .sp-hero-proof .sb-mini-app{height:590px}.sp-workflow,.sp-preparation,.sp-page .sp-faq{gap:60px}.sp-question-stage{gap:48px;padding:40px}.sp-document-grid{gap:45px;padding:36px}.sp-closing h2{font-size:32px}.sp-related{gap:18px;font-size:12px}}
@media (max-width:1050px){.sp-page .sp-wrap{width:calc(100% - 40px)}.sp-page .sp-hero{gap:25px;padding:32px 28px 22px;grid-template-columns:.9fr 1.1fr}.sp-page h1{font-size:27px}.sp-page .sp-lead{font-size:18px}.sp-page .sp-hero-detail{font-size:14px}.sp-actions{gap:14px}.sp-hero-cat{width:320px;max-width:100%}.sp-page .sp-benefits{gap:28px;padding-inline:10px}.sp-page .sp-section{padding-block:52px}.sp-section-heading,.sp-workflow,.sp-preparation,.sp-page .sp-faq,.sp-solve-feature,.sp-derivative-proof{gap:36px}.sp-plan-scene{padding:25px}.sp-plan-paper{padding:25px}.sp-plan-paper h3{font-size:18px}.sp-document-grid{padding:28px;gap:30px}.sp-document-sheet{padding:24px}.sp-question-stage{padding:32px;gap:30px}.sp-question-form{padding:24px}.sp-page .sp-closing{padding:38px;gap:30px}.sp-closing h2{font-size:29px}.sp-closing>.sp-button{max-width:260px}.sp-related{flex-wrap:wrap;justify-content:flex-start;gap:18px 28px}.sp-related>p{width:100%}.sp-meaning-note{gap:40px}.sp-page .sp-equation{font-size:23px}}
@media (max-width:820px){.sp-page .sp-hero{grid-template-columns:1fr;padding:32px;gap:20px}.sp-hero-copy{position:relative;padding-right:200px}.sp-page h1{max-width:24ch;font-size:30px}.sp-hero-cat{position:absolute;right:-25px;bottom:-15px;width:220px;margin:0;z-index:0}.sp-hero-proof{width:min(100%,540px);margin-inline:auto;padding:0}.sp-page .sp-benefits{grid-template-columns:1fr;gap:22px;padding-block:30px}.sp-page .sp-benefits p{max-width:65ch;margin-top:4px}.sp-page .sp-benefits h2{font-size:19px}.sp-workflow,.sp-document-grid,.sp-preparation,.sp-page .sp-faq,.sp-question-stage,.sp-solve-feature,.sp-derivative-proof{grid-template-columns:1fr;gap:32px}.sp-section-heading{gap:30px}.sp-example-aside{padding:0 5px}.sp-pullquote br{display:none}.sp-page .sp-pullquote{font-size:26px;margin-block:20px}.sp-example-pair{gap:20px}.sp-example{padding:24px}.sp-example h3{font-size:20px}.sp-meaning-values{padding:28px;gap:28px}.sp-page .sp-equation{font-size:22px}.sp-page .sp-closing{align-items:flex-start;flex-direction:column}.sp-closing>.sp-button{max-width:none}.sp-plan-scene{max-width:550px;width:100%;margin-inline:auto}.sp-question-stage{margin-block:30px 0}.sp-page .sb-lesson-grid{grid-template-columns:1fr}}
@media (max-width:560px){.sp-page .sp-wrap{width:calc(100% - 28px)}.sp-page .sp-topline{padding-block:18px;gap:12px}.sp-breadcrumb{font-size:11px;gap:7px}.sp-motion span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.sp-motion{padding:7px}.sp-page .sp-hero{padding:26px 20px 22px;border-radius:26px}.sp-hero-copy{padding:0}.sp-page h1{font-size:26px;letter-spacing:-.035em}.sp-page .sp-lead{font-size:18px;margin-top:18px}.sp-hero-cat{position:relative;right:auto;bottom:auto;width:240px;margin:-2px auto -10px}.sp-actions{margin-top:20px;gap:13px}.sp-page .sp-button{font-size:14px;padding-inline:18px}.sp-page .sp-text-link{font-size:13px}.sp-page .sp-hero-proof .sb-mini-app{height:560px}.sp-page .sp-hero-proof .sb-generator-app{height:570px}.sp-page .sp-hero-proof .sb-solver-app,.sp-page .sp-hero-proof .sb-conversation-app{height:540px}.sp-page .sb-assembly-fields h3{font-size:15px}.sp-page .sb-assembly-types>span{font-size:10px;padding-inline:2px}.sp-page .sb-assembly-subjects>span{font-size:11px}.sp-page .sb-assembly-steps{gap:9px}.sp-page .sb-assembly-steps li{font-size:10px;gap:4px}.sp-page .sb-mini-header{padding-inline:12px}.sp-page .sb-mini-brand strong{font-size:14px}.sp-page .sb-thread-status{font-size:11px}.sp-page .sb-chat-history{padding:15px 12px}.sp-page .sb-chat-message{font-size:13px;max-width:96%}.sp-page .sb-order-hero{padding:19px 17px 45px}.sp-page .sb-order-heading h3,.sp-page .sb-order-done h3{font-size:17px}.sp-page .sb-order-stack{margin-inline:6px;padding-inline:15px}.sp-page h2{font-size:30px}.sp-page .sp-section{padding-block:40px}.sp-section-heading,.sp-meaning-note{grid-template-columns:1fr;gap:18px}.sp-section-heading{margin-bottom:25px}.sp-section-heading>p{font-size:16px}.sp-process>li{gap:14px}.sp-process h3{font-size:17px}.sp-plan-scene{padding:22px 18px;border-radius:24px}.sp-plan-paper{padding:24px 20px}.sp-document-grid{padding:22px 18px;border-radius:24px}.sp-document-sheet{padding:22px 18px}.sp-document-sheet>p{font-size:15px}.sp-document-guide{gap:22px}.sp-document-guide h3{font-size:19px}.sp-preparation p{font-size:16px}.sp-example-pair{grid-template-columns:1fr}.sp-example-featured{padding:26px 22px}.sp-example-meta{font-size:12px}.sp-example h3{font-size:20px}.sp-page .sp-example-result{font-size:17px}.sp-reasoning>li{font-size:14px;padding-left:28px}.sp-question-stage{padding:28px 20px;border-radius:26px}.sp-question-form{padding:22px 18px}.sp-question-form>label{font-size:17px}.sp-question-form textarea{font-size:15px}.sp-page .sp-section-lead{font-size:17px}.sp-faq-list summary{font-size:16px}.sp-faq-list .sp-disclosure>p{font-size:15px}.sp-page .sp-closing{padding:30px 25px;border-radius:26px}.sp-closing h2{font-size:29px}.sp-closing p{font-size:15px}.sp-related{padding:26px 5px;font-size:13px;flex-direction:column;align-items:flex-start;gap:17px}.sp-meaning-values{grid-template-columns:1fr;gap:28px;padding:26px}.sp-meaning-note{gap:15px}.sp-page .sp-equation{font-size:25px}.sp-page .sb-lesson{padding:24px 16px}.sp-page .sb-lesson-story h3{font-size:25px}.sp-page .sb-plot{min-width:0}.sp-page .sb-point-help{font-size:11px}}
@media (prefers-reduced-motion:reduce){.sp-page *,.sp-page *::before,.sp-page *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Shared closing invitation and the native route beside conversational previews. */
.sp-page .sp-closing h2{color:var(--st-deep);max-width:25ch}
.sp-page .sp-closing>.sp-button{background:var(--st-violet);color:#fff;max-width:100%;min-height:56px}
.sp-page .sp-closing>.sp-button:hover{background:var(--st-deep)}
.sp-page .sp-preview-open{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:16px 4px 0;font:600 14px/1.5 Manrope,sans-serif;color:var(--st-violet)}
.sp-page .sp-preview-open:hover{text-decoration:underline}
.sp-preview-open svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sp-write .sp-hero-cat{margin-top:auto}
@media(max-width:560px){.sp-page .sp-closing{gap:24px}.sp-closing>.sp-button{width:100%}.sp-write .sp-hero-cat{margin-top:8px}}