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@media(max-width:767px){html{scroll-padding-top:90px}.site-header{height:68px;padding:0 18px;gap:8px}.brand{font-size:21px;gap:8px}.brand-symbol{width:35px;height:35px;border-radius:12px 12px 12px 4px}.header-nav{display:none}.site-header>.icon-button{margin-left:auto}.mobile-menu{display:grid;margin-left:0!important}.sidebar{top:68px;transform:translateX(-100%);transition:transform .2s;width:260px;padding-top:25px;bottom:0}.sidebar.is-open{transform:translateX(0)}.menu-backdrop.is-open{display:block;position:fixed;inset:68px 0 0;background:#191b3155;z-index:24}.page{margin-left:0;padding:24px 19px 0}.hero{display:flex;flex-direction:column;align-items:stretch;min-height:0;margin-bottom:30px}.hero h1{font-size:42px;max-width:400px;margin-bottom:19px}.hero h1 br{display:none}.hero-copy>p:not(.eyebrow){font-size:16px;max-width:440px}.hero-art{min-height:320px;padding-left:70px;margin-top:15px}.hero:before{width:100%;right:0;top:160px;height:360px}.robot{left:-8px;bottom:15px;width:145px;height:220px}.chat-preview{padding:17px 13px;font-size:11px;max-width:350px}.assistant-heading{font-size:12px}.solution-steps{padding-left:20px;gap:12px}.solution-steps li{gap:5px}.tile-f{left:34px;top:0}.tile-code{right:0;top:0}.float-tile{font-size:19px;border-radius:11px}.section{margin-bottom:32px}.section-heading{gap:12px;align-items:flex-start}.section-heading h2{font-size:29px}.section-heading .text-link{font-size:12px;white-space:nowrap;gap:5px;min-height:36px}.eyebrow{font-size:11px}h2{font-size:29px}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.subject-card{padding:10px 13px 15px}.subject-card img{height:115px}.subject-card span{font-size:14px}.composer{padding:24px 18px;border-radius:20px;margin-bottom:32px}.composer h2{font-size:29px}.mode-tabs{gap:6px;margin-bottom:20px}.mode-tabs button{font-size:11px;padding:9px 5px;min-height:49px;line-height:1.3}.mode-tabs .icon{display:none}.composer textarea{font-size:15px;padding:15px;min-height:135px}.form-toolbar{gap:10px}.select-wrap{flex:1;min-width:0}.select-wrap select{font-size:13px;width:100%;padding-left:9px}.submit-prompt{width:100%;margin:4px 0 0}.advanced-fields{grid-template-columns:1fr}.depth-field{grid-column:auto}.form-meta{font-size:11px}.form-helper{font-size:12px}.article-grid{grid-template-columns:1fr;gap:20px}.article-card h3{font-size:22px}.article-card img{max-height:250px}.card-content{padding:19px}.practice-banner{padding:22px 20px;flex-wrap:wrap;gap:15px}.practice-banner .practice-icon{width:50px;height:50px;font-size:28px}.practice-banner>div:nth-child(2){flex:1;min-width:180px}.practice-banner h2{font-size:25px}.practice-banner p{font-size:14px}.practice-banner .text-link{margin:0}.site-footer{align-items:flex-start;font-size:12px;gap:14px}.footer-links{gap:15px}.breadcrumbs{margin:7px 0 25px;font-size:12px}.page-intro{margin-top:12px;margin-bottom:30px}.page-intro h1{font-size:35px}.page-intro p{font-size:17px}.prose{font-size:17px;line-height:1.75}.prose h1{font-size:34px}.prose h2{font-size:27px;margin-top:36px}.prose h3{font-size:22px}.article-lead{font-size:18px}.article-cover{margin:22px 0}.toc{padding:20px;font-size:14px}.prose blockquote{padding:17px 19px}.related-section .article-grid{grid-template-columns:1fr}.related-section .article-card{display:grid;grid-template-columns:100px 1fr}.related-section .article-card img{height:100%;min-height:100px;object-fit:cover}.related-section .article-card h3{font-size:16px}.related-section .card-content{padding:13px}.related-section .card-category{font-size:9px}.tool-grid{grid-template-columns:1fr}.widget{padding:23px 18px}.widget h2{font-size:25px}.quiz-question legend{font-size:17px}.quiz-option{font-size:15px}.search-dialog{padding:20px}.search-results a{font-size:15px}}
@media(max-width:359px){.brand{font-size:18px}.site-header{padding:0 11px}.page{padding-left:14px;padding-right:14px}.hero h1{font-size:37px}.hero-art{padding-left:45px;min-height:290px}.robot{width:120px;left:-8px;bottom:0}.chat-preview{font-size:10px;padding:15px 10px}.solution-steps{padding-left:4px}.user-bubble{margin-left:15px}.preview-label{font-size:10px}.assistant-heading{font-size:11px}.hero .tile-f{left:18px}.subject-card span{font-size:13px}.composer{padding:21px 14px}.composer h2{font-size:27px}.mode-tabs button{font-size:10px}.section-heading h2{font-size:26px}.section-heading .text-link{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.sidebar{overflow-y:auto}.subject-card span .icon{width:18px;height:18px}
@media(max-width:359px){.subject-card span{font-size:11px;gap:3px;letter-spacing:-.5px}.subject-card span .icon{width:14px;height:14px}}
@media(min-width:768px){body{background:linear-gradient(90deg,#1b1e2b 0 235px,#f8f9fe 235px)}.sidebar{background:#1b1e2b}}
@media(min-width:901px) and (max-width:1150px){body{background:linear-gradient(90deg,#1b1e2b 0 190px,#f8f9fe 190px)}}
@media(min-width:768px) and (max-width:900px){body{background:linear-gradient(90deg,#1b1e2b 0 170px,#f8f9fe 170px)}}