/* Extension landing page: stage lights, compact type and a focused product preview. */
.past-paper-explanations-page{--extension-bg:#101012;--extension-ink:#f4f3f5;--extension-muted:#aaa6af;--extension-line:#2c2930;--extension-accent:#b64bff;display:none;width:100%;min-width:0;color:var(--extension-ink);background:var(--extension-bg);font-family:Inter,'Segoe UI',sans-serif}
.is-extension-page>.app-home-inner,.is-extension-page>.analytics-page{display:none}
.app-home-panel.is-extension-page{padding:0!important;border-radius:22px!important;background:#101012!important;overflow-y:auto!important;scroll-behavior:smooth;scroll-padding-top:24px;scrollbar-width:thin;scrollbar-color:#4d4358 #101012}
.app-home-panel.is-extension-page::-webkit-scrollbar{width:9px}
.app-home-panel.is-extension-page::-webkit-scrollbar-track{background:#101012;border-radius:22px}
.app-home-panel.is-extension-page::-webkit-scrollbar-thumb{background:#4d4358;border:2px solid #101012;border-radius:20px}
.app-home-panel.is-extension-page::-webkit-scrollbar-thumb:hover{background:#786389}
.is-extension-page>.past-paper-explanations-page{display:block}
.extension-hero{position:relative;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:570px;padding:218px 24px 40px;box-sizing:border-box;text-align:center;overflow:hidden;background:#101012}
.extension-page-title{margin:0;color:var(--extension-ink);font-size:clamp(30px,2.55vw,38px);font-weight:600;line-height:1.1;letter-spacing:-.045em}
.extension-page-title span{position:relative;color:var(--extension-ink)}
.extension-page-title span::after{content:'';position:absolute;height:4px;width:43%;left:28%;bottom:-8px;background:#b64bff;border-radius:50%;transform:rotate(-1deg)}
.extension-hero-copy{max-width:470px;margin:27px 0 30px;color:#aaa6af;font-size:14px;line-height:1.65}
.extension-install{display:flex;flex-direction:column;align-items:center;gap:12px}
.extension-store-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:0 22px;border:1px solid #bc63ef;border-radius:999px;background:#aa43eb;color:#fff;font:600 14px Inter,'Segoe UI',sans-serif;text-decoration:none;transition:background .18s,transform .18s}
.extension-store-button:hover{background:#ba59f5;color:#fff;transform:translateY(-2px)}
.extension-store-button svg{width:22px;height:22px;background:white;border-radius:50%;padding:2px}
.extension-publication-status{color:var(--extension-muted);font-size:11px;line-height:1.5}
.extension-preview-link{display:inline-flex;align-items:center;gap:7px;margin-top:32px;color:#c3bfc8;text-decoration:none;font-size:12px}
.extension-preview-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.extension-preview{width:calc(100% - 64px);max-width:1040px;margin:0 auto;border:1px solid #49404e;border-radius:22px;overflow:hidden;background:#525659}
.extension-interactive-demo{display:block;width:100%;height:740px;border:0;background:#525659}
.extension-details{padding:58px 40px 56px;max-width:1040px;margin:0 auto;box-sizing:border-box}
.extension-details-heading{text-align:center}
.extension-details-heading>p{margin:0 0 12px;color:#c297e6;font-size:13px}
.extension-details-heading h2{margin:0 0 16px;color:var(--extension-ink);font-size:clamp(24px,2.5vw,30px);font-weight:600;letter-spacing:-.035em;line-height:1.2}
.extension-details-heading>span{color:var(--extension-muted);font-size:13px;line-height:1.6}
.extension-feature-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:32px}
.extension-feature-list article{padding:24px;border:1px solid var(--extension-line);border-radius:22px;background:#141217}
.extension-feature-list h3{margin:0 0 12px;color:var(--extension-ink);font-size:15px;font-weight:600}
.extension-feature-list p{margin:0;color:var(--extension-muted);font-size:13px;line-height:1.7}
.extension-install-guide{margin-top:36px;border-top:1px solid var(--extension-line);border-bottom:1px solid var(--extension-line);padding:20px 0;color:var(--extension-muted);font-size:14px;line-height:1.8}
.extension-install-guide summary{color:var(--extension-ink);cursor:pointer}
.extension-install-guide li{margin:8px 0}
.extension-install-guide code{color:#c297e6}
.extension-install-guide p{max-width:730px;margin-bottom:0}
.past-paper-explanations-page :is(a,summary):focus-visible{outline:2px solid #c297e6;outline-offset:5px}
#dashboardWorkspace #pastPaperExplanationsNav{font-family:'Nunito Sans','Segoe UI',system-ui,sans-serif;font-size:14px;font-weight:500;line-height:20px}
#pastPaperExplanationsNav span{font:inherit}
#dashboardWorkspace #pastPaperExplanationsNav svg{width:24px;height:24px;flex:0 0 24px;fill:none;stroke:none;overflow:visible}
#pastPaperExplanationsNav .icon-extension-piece{transform-origin:12px 12px}
@media(prefers-reduced-motion:no-preference){#pastPaperExplanationsNav:is(:hover,:focus-visible) .icon-extension-piece{animation:sidebar-extension-wiggle 650ms cubic-bezier(.22,.61,.36,1) both}}
@keyframes sidebar-extension-wiggle{0%,100%{transform:rotate(0) translateY(0)}30%{transform:rotate(-12deg) translateY(-2px)}65%{transform:rotate(9deg) translateY(-1px)}}
@media(max-width:700px){.extension-hero{min-height:570px;padding:206px 20px 34px}.extension-page-title{font-size:30px}.extension-hero-copy{font-size:13px;max-width:390px}.extension-preview{width:calc(100% - 24px)}.extension-interactive-demo{height:860px}.extension-details{padding:44px 24px}.extension-feature-list{grid-template-columns:1fr;gap:16px}}
@media(prefers-reduced-motion:reduce){.app-home-panel.is-extension-page{scroll-behavior:auto}.extension-store-button{transition:none}}
.main:has(>.app-home-panel.is-extension-page:not([hidden]))::after{background:transparent!important;border-radius:22px!important}
/* Minimal two-column introduction; page corners match the shared dashboard frame. */
.app-home-panel.is-extension-page{border-radius:var(--dashboard-chrome-radius,12px)!important}
.main:has(>.app-home-panel.is-extension-page:not([hidden]))::after{border-radius:var(--dashboard-chrome-radius,12px)!important}
.extension-hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.15fr);align-items:center;gap:56px;width:min(100%,1180px);margin:0 auto;min-height:510px;padding:76px 48px 64px;text-align:left;overflow:visible}
.extension-hero-content{min-width:0}
.extension-page-label{margin:0 0 24px;color:#b5a5ce;font-size:12px;font-weight:600}
.extension-page-title{font-size:clamp(30px,3vw,44px);line-height:1.12;letter-spacing:-.045em}
.extension-page-title span::after{display:none}
.extension-hero-copy{margin:22px 0 28px;max-width:380px;font-size:14px;line-height:1.8;color:#a5a2ac}
.extension-install{align-items:flex-start;gap:12px}
.extension-store-button{min-height:44px;border-radius:8px;background:#c0a1ee;border-color:#c0a1ee;color:#21172e;font-weight:600}
.extension-store-button:hover{background:#ceb5f1;color:#21172e}
.extension-publication-status{max-width:320px;font-size:10px}
.extension-preview-link{margin-top:24px;color:#c6c2cc;font-size:12px}
.extension-preview{width:100%;max-width:none;margin:0;border:0;border-radius:12px;background:transparent;overflow:visible}
.extension-interactive-demo{height:auto;aspect-ratio:800/620;border:0;background:transparent}
.extension-details{padding:8px 48px 48px;max-width:1180px}
.extension-details-heading{text-align:left;border-top:1px solid #2a272e;padding-top:32px}
.extension-details-heading>p{display:none}
.extension-details-heading h2{font-size:24px;margin-bottom:12px}
.extension-feature-list{gap:32px;margin-top:32px}
.extension-feature-list article{padding:0;border:0;border-radius:0;background:transparent}
.extension-install-guide{margin-top:32px}
@media(max-width:1050px){.extension-hero{gap:32px;padding:56px 32px;min-height:460px}.extension-page-title{font-size:32px}.extension-details{padding:8px 32px 40px}}
@media(max-width:760px){.extension-hero{grid-template-columns:1fr;gap:36px;padding:40px 24px;min-height:0}.extension-page-title{font-size:34px}.extension-hero-copy{max-width:440px}.extension-preview{max-width:600px}.extension-details{padding:0 24px 36px}.extension-feature-list{grid-template-columns:1fr;gap:24px}}
/* Visual feature previews use the same paper yellow, Atlas lilac and blue as the landing page. */
.extension-interactive-demo{aspect-ratio:800/540}
.extension-hero{min-height:460px;padding-top:60px;padding-bottom:60px}
.extension-install{margin-top:30px}
.extension-details-heading{padding-top:36px}
.extension-details-heading h2{font-size:clamp(24px,2.5vw,32px);letter-spacing:-.04em}
.extension-feature-list{gap:24px;margin-top:28px}
.extension-feature-list article{min-width:0}
.extension-feature-visual{height:220px;border-radius:12px;margin-bottom:22px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;color:#283044}
.extension-feature-visual--steps{background:#fff3ad}
.extension-mini-sheet{width:72%;padding:18px 22px;background:#fff;border:1px solid #e8d992;border-radius:8px;transform:rotate(-3deg)}
.extension-mini-sheet>span{display:block;font-size:10px;color:#73737d;margin-bottom:14px}
.extension-mini-sheet>strong{display:block;font:italic 28px Georgia,serif;text-align:center;color:#202431}
.extension-mini-working{text-align:center;font-size:13px;padding:12px 0;color:#73737d}
.extension-mini-mark{border-top:1px solid #eee;padding-top:12px;display:flex;align-items:center;justify-content:center;gap:20px;font-size:14px;color:#3e6f57}
.extension-mini-mark svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.extension-feature-visual--chat{background:#e7dcff;flex-direction:column;padding:18px;gap:10px}
.extension-feature-visual--chat img{width:88px;height:88px;object-fit:contain}
.extension-mini-chat{background:#fff;border-radius:8px;padding:11px 14px;color:#4d4265;font-size:11px;transform:rotate(-2deg);align-self:flex-end}
.extension-mini-reply{font-size:11px;color:#6b5b84;align-self:flex-start;margin-left:14px}
.extension-feature-visual--layout{background:#dbeafa;padding:22px}
.extension-mini-browser{width:100%;border:1px solid #a8bfd8;border-radius:8px;background:#edf3fa;overflow:hidden;transform:rotate(2deg)}
.extension-mini-bar{display:flex;gap:4px;padding:10px;background:#bdcfe4}
.extension-mini-bar i{width:4px;height:4px;background:#8097b2;border-radius:50%}
.extension-mini-panes{display:grid;grid-template-columns:1.35fr 1fr;gap:8px;padding:12px;min-height:132px}
.extension-mini-paper,.extension-mini-panel{background:#fff;padding:12px 9px;min-width:0}
.extension-mini-paper>span,.extension-mini-panel>span{display:block;font-size:9px;color:#7c8190;margin-bottom:12px}
.extension-mini-paper>strong{font:9px Georgia,serif;color:#222;display:block;margin-bottom:15px}
.extension-mini-panes i{display:block;height:2px;background:#e1e4eb;margin:8px 0}
.extension-mini-panel{border-radius:6px}
.extension-mini-panel strong{display:block;text-align:center;font:italic 14px Georgia,serif;margin-top:18px}
.extension-feature-list h3{font-size:16px;font-weight:600;margin-bottom:10px}
.extension-feature-list p{font-size:13px;line-height:1.7;max-width:290px}
@media(max-width:760px){.extension-hero{padding-top:40px;padding-bottom:40px;min-height:0}.extension-feature-list{gap:32px}.extension-feature-visual{height:240px}.extension-feature-list p{max-width:none}}