/* Mobile reading, course study and app navigation enhancements. */
.cards-carousel{overflow:hidden;}
.cards-carousel-track,.question-carousel{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,calc((100% - 52px)/3));gap:24px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x mandatory;scrollbar-width:thin;padding:2px 2px 18px;}
.cards-carousel-track>.article-card,.question-carousel>.question-preview{scroll-snap-align:start;min-width:0;}
.carousel-controls{display:flex;justify-content:flex-end;gap:8px;margin:-14px 0 15px;}
.question-preview{display:flex;flex-direction:column;justify-content:space-between;gap:18px;min-height:190px;padding:22px;border:1px solid var(--line);border-radius:12px;background:#eef0e7;scroll-snap-align:start;}
.question-preview h3{font-size:21px;margin:0;}
.question-preview>span:last-child{font-size:12px;font-weight:600;}
.academy-intro{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(250px,.6fr);gap:40px;align-items:center;padding-top:35px;}
.academy-intro h2{font-size:clamp(32px,4vw,52px);}
.academy-intro .notice{padding:24px;border-radius:12px;background:#e7ebdf;}
.academy-intro .text-link{margin-left:20px;}
.academy-course-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
.path-progress{overflow:hidden;}
.path-progress[role=progressbar]{height:7px;margin:12px 0 6px;background:#e5e8df;border-radius:9px;}
.path-progress[role=progressbar]>span{display:block;height:100%;background:#6b8d53;border-radius:inherit;transition:width .2s;}
.academy-toolbar{display:grid;grid-template-columns:1fr minmax(170px,280px) auto;align-items:center;gap:24px;padding:20px 0;}
.academy-module{padding:30px 0;border-top:1px solid var(--line);}
.academy-steps{display:grid;gap:12px;}
.academy-step{display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;padding:20px;border:1px solid var(--line);border-radius:10px;background:#fffefa;}
.academy-step h3{margin:5px 0 8px;}
.academy-step p{margin-bottom:8px;color:var(--muted);}
.step-number{font:14px var(--mono);color:#607a52;}
.academy-faq{margin:12px 0;padding:16px 18px;border:1px solid var(--line);border-radius:9px;background:#fffefa;}
.academy-faq summary{cursor:pointer;font-weight:600;}
.academy-faq summary .eyebrow{margin-top:6px;color:var(--muted);font-weight:400;}
.academy-faq>p{margin:14px 0 8px;}
.question-search{display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:center;margin:25px 0;}
.question-search label{grid-column:1/-1;font-weight:600;}
.question-search input{min-height:50px;padding:12px 15px;border:1px solid var(--line);border-radius:8px;background:#fffefa;}
.question-search output{font-size:12px;color:var(--muted);}
.faq-sources{margin-top:14px;padding-top:10px;border-top:1px solid var(--line);}
.faq-sources li{margin:8px 0;}
.faq-sources li span{display:block;color:var(--muted);font-size:11px;}
.install-card{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-top:30px;padding-bottom:65px;}
.install-card>div{padding:28px;border:1px solid var(--line);border-radius:12px;background:#fffefa;}
.install-card h2{font-size:30px;margin:10px 0;}
.offline-pack{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:12px 0;padding:16px;border:1px solid var(--line);border-radius:9px;list-style:none;}
.offline-pack small{display:block;color:var(--muted);margin-top:4px;}
.article-community-invite,.stonkb-next-step{margin:30px 0;padding:24px;border:1px solid var(--line);border-radius:12px;background:#eef0e7;}
.article-community-invite{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.article-community-invite h2,.stonkb-next-step h2{margin:7px 0 10px;font-size:clamp(24px,3vw,34px);}
.article-community-invite p,.stonkb-next-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.7;}
.article-community-invite .eyebrow,.stonkb-next-step .eyebrow{color:#607a52;font-size:9px;}
.stonkb-next-step .fine-print{margin-top:15px;font-size:11px;}
.stonkb-next-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:19px;}
.stonkb-learning-next{padding:22px 26px;border:1px solid var(--line);border-radius:12px;background:#eef0e7;}
.stonkb-learning-next h2{margin:7px 0 10px;font-size:clamp(24px,3vw,34px);}
.stonkb-learning-next p{max-width:720px;color:var(--muted);font-size:13px;}
.stonkb-learning-next .eyebrow{color:#607a52;font-size:9px;}
.mobile-bottom-nav{display:none;}
@media(max-width:820px){
 .cards-carousel-track,.question-carousel{grid-auto-columns:minmax(72%,340px);gap:16px;}
 .academy-course-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .academy-toolbar{grid-template-columns:1fr auto;}
 .academy-toolbar>div:nth-child(2){grid-column:1;grid-row:2;}
 .academy-toolbar>[data-download-course]{grid-column:2;grid-row:1/3;}
 .install-card{gap:16px;}
}
@media(max-width:640px){
 body{padding-bottom:calc(70px + env(safe-area-inset-bottom));}
 .mobile-bottom-nav{position:fixed;z-index:35;inset:auto 0 0;display:grid;grid-template-columns:repeat(4,1fr);min-height:62px;padding:7px 8px calc(7px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:rgba(251,250,246,.97);backdrop-filter:blur(14px);}
 .mobile-bottom-nav a{display:grid;justify-items:center;align-content:center;gap:1px;min-height:44px;color:var(--muted);}
 .mobile-bottom-nav a span{font-size:19px;line-height:1.1;}
 .mobile-bottom-nav a small{font-size:10px;line-height:1.3;}
 .mobile-bottom-nav a[aria-current=page]{color:var(--ink);font-weight:700;}
 .academy-intro,.install-card{grid-template-columns:1fr;gap:15px;}
 .academy-intro .text-link{margin:16px 0 0;}
 .academy-course-grid{grid-template-columns:1fr;}
 .academy-toolbar{grid-template-columns:1fr;gap:12px;}
 .academy-toolbar>div:nth-child(2),.academy-toolbar>[data-download-course]{grid-column:auto;grid-row:auto;}
 .academy-toolbar>[data-download-course]{width:100%;}
 .academy-step{grid-template-columns:34px minmax(0,1fr);padding:15px;gap:10px;}
 .article-community-invite{align-items:flex-start;flex-direction:column;gap:15px;padding:20px;}
 .article-community-invite .button,.stonkb-next-actions .button{width:100%;}
 .stonkb-next-step{padding:20px;}
 .stonkb-next-actions{align-items:stretch;flex-direction:column;gap:12px;}
 .question-search{grid-template-columns:1fr;}
 .question-search label{grid-column:auto;}
 .offline-pack{align-items:flex-start;}
 .carousel-controls{justify-content:flex-start;}
}
@media(prefers-reduced-motion:reduce){.path-progress[role=progressbar]>span{transition:none;}}