/* Course documents keep the site's palette with a quieter reading layout. */

body[data-page="courses"]{background:#fff}body[data-page="courses"] .site-header,body[data-page="courses"] .site-header.is-scrolled{height:80px;background:var(--paper);border-bottom:1px solid var(--line);padding:0 32px;backdrop-filter:none}body[data-page="courses"] .header-note{display:none}body[data-page="courses"] .brand-cn{font-size:29px}body[data-page="courses"] .brand-en{font-size:8px}body[data-page="courses"] #footer{display:none}body[data-page="courses"] .reading-progress{display:none}
.course-gate{padding-top:80px;min-height:100dvh;display:grid;grid-template-columns:1.1fr 1fr;background:var(--paper)}.course-gate-intro{background:#e9eecc;padding:42px clamp(32px,6vw,110px);display:flex;align-items:flex-start;flex-direction:column}.course-back{font-size:13px;color:#5a604b;margin-bottom:clamp(65px,10vh,130px)}.course-back:hover{text-decoration:underline}.course-gate-intro>.eyebrow{font-size:11px;color:#687042;letter-spacing:.18em}.course-gate-intro h1{font-family:var(--serif);font-size:clamp(43px,4.65vw,72px);line-height:1.42;letter-spacing:-.04em;margin:23px 0}.course-gate-intro>p{font-size:15px;line-height:2;color:#62684f}.course-gate-topics{display:flex;gap:16px;flex-wrap:wrap;margin-top:45px;font-size:12px;color:#535a3d}.course-gate-topics i{font-style:normal;color:#929a71}.course-gate-signature{margin-top:auto;padding-top:90px;display:flex;gap:22px;align-items:center;font-size:12px;letter-spacing:.13em;color:#6d7550}.course-gate-signature span{font-size:11px;letter-spacing:.08em}.course-gate-panel{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:60px 35px}.course-gate-card{width:100%;max-width:400px;background:#fff;border:1px solid #e1e4d8;border-radius:12px;padding:38px 34px;box-shadow:0 12px 44px #454f0f04}.course-lock-icon{display:grid;place-items:center;width:48px;height:48px;background:var(--lime);border-radius:10px;margin-bottom:28px}.course-lock-icon svg{width:23px;height:23px}.course-gate-card>.eyebrow{font-size:10px;letter-spacing:.16em;color:#7f836e}.course-gate-card h2{font-family:var(--serif);font-size:35px;margin:9px 0 13px}.course-gate-description{font-size:13px;color:#74786a;line-height:1.8;margin-bottom:34px}.course-password-form>label{font-size:13px;display:block;margin-bottom:10px}.course-password-field{position:relative}.course-password-field input{width:100%;height:48px;border:1px solid #d6dacf;background:#fdfefa;border-radius:5px;padding:0 65px 0 13px;font:inherit;font-size:14px;outline-offset:3px}.course-password-field input:focus{outline:2px solid #8f9e32}.course-password-field input[aria-invalid]{border-color:#b64e3c}.course-password-toggle{position:absolute;right:4px;top:4px;min-width:50px;height:40px;color:#666e55;font-size:12px}.course-password-error{min-height:32px;font-size:12px;color:#a83a2c;line-height:1.7;padding-top:7px}.course-unlock{display:flex;align-items:center;justify-content:space-between;width:100%;background:var(--ink);color:var(--paper);height:48px;border-radius:5px;padding:0 16px;font-size:14px}.course-unlock:hover{background:#414b2a}.course-unlock svg{width:19px}.course-session-note{font-size:11px;color:#7c816f;margin-top:20px;display:flex;align-items:center;justify-content:center;gap:6px}.course-session-note svg{width:12px;height:12px}.course-gate-caption{font-size:11px;letter-spacing:.12em;color:#8a8e7c;margin-top:25px}
.course-workspace{display:grid;grid-template-columns:268px minmax(0,1fr);padding-top:80px;min-height:100dvh}.course-sidebar{position:sticky;top:80px;height:calc(100dvh - 80px);border-right:1px solid #e4e6dc;background:#f7f8f2;display:flex;flex-direction:column;padding:30px 17px 18px;overflow:auto;overscroll-behavior:contain}.course-space{display:flex;gap:12px;align-items:center;padding:0 9px}.course-space-icon{display:grid;place-items:center;background:var(--ink);color:var(--lime);width:40px;height:40px;border-radius:8px}.course-space-icon svg{width:21px;height:21px}.course-space h2{font-size:19px;font-weight:600;line-height:1.5}.course-space p{font-size:11px;color:#7e8372;margin-top:2px}.course-search{display:flex;align-items:center;gap:8px;border:1px solid #dde1d2;border-radius:6px;padding:0 10px;background:#fff;margin:27px 7px 30px;min-height:37px}.course-search svg{width:15px;height:15px;color:#929983}.course-search:focus-within{outline:2px solid #8f9e32;outline-offset:2px}.course-search input{min-width:0;flex:1;outline:none;border:0;background:none;font:inherit;font-size:12px;height:35px}.course-search input::placeholder{color:#89907c}.course-nav-label{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#868c77;padding:0 11px;margin-bottom:16px}.course-nav-label small{font-size:10px}.course-nav{flex:1}.course-nav-group{margin-bottom:20px}.course-nav-group summary{list-style:none;display:flex;align-items:center;gap:7px;cursor:pointer;padding:5px 9px;margin-bottom:7px;font-size:12px;font-weight:500;color:#5f674e;min-height:31px}.course-nav-group summary::-webkit-details-marker{display:none}.course-nav-group summary>svg{width:12px;height:12px;transition:transform .15s}.course-nav-group[open] summary>svg{transform:rotate(90deg)}.course-nav-group summary small{font-size:10px;font-weight:400;color:#9a9f90;margin-left:auto;font-family:Arial}.course-nav-group>div{display:flex;flex-direction:column;gap:4px}.course-nav a{display:flex;align-items:flex-start;gap:9px;padding:10px 9px 10px 23px;border-radius:5px;font-size:12px;color:#626856;line-height:1.6}.course-nav a svg{width:15px;height:15px;margin-top:2px;color:#8f9682}.course-nav a:hover{background:#ecefe0}.course-nav a[aria-current]{background:#e6eec2;color:#354018;font-weight:500}.course-nav a[aria-current] svg{color:#637b22}.course-search-empty{padding:15px 12px;color:#737c61;font-size:12px;line-height:1.9}.course-search-empty button{padding:8px 0;color:#516814;text-decoration:underline}.course-sidebar-bottom{padding:25px 8px 0;margin-top:auto}.course-sidebar-note{border-top:1px solid #dfe4d2;padding:20px 2px;display:flex;gap:12px;font-size:12px;line-height:1.85;color:#82896f}.course-note-dot{width:6px;height:6px;flex-shrink:0;background:#a3b838;border-radius:50%;margin-top:8px}.course-sidebar-bottom>button{display:flex;align-items:center;gap:8px;font-size:11px;color:#7d846e;padding:8px 0;min-height:36px}.course-sidebar-bottom>button svg{width:13px;height:13px}.course-sidebar-bottom>button:hover{color:var(--ink)}
.course-reader{min-width:0}.course-toolbar{position:sticky;top:80px;z-index:12;height:58px;border-bottom:1px solid #edf0e6;display:flex;align-items:center;justify-content:space-between;padding:0 38px;background:#fffffff5;backdrop-filter:blur(8px);gap:15px}.course-breadcrumb{display:flex;align-items:center;gap:13px;font-size:11px;color:#777e68;min-width:0}.course-breadcrumb>span:last-child{color:#515846}.course-breadcrumb a:hover{text-decoration:underline}.course-toolbar-actions{display:flex;align-items:center;gap:22px}.course-sample-badge{font-size:10px;color:#7b826c;background:#f4f6ee;padding:5px 8px;border-radius:4px;white-space:nowrap}.course-toolbar-actions button{display:flex;align-items:center;gap:6px;font-size:11px;min-height:36px;color:#777e68}.course-toolbar-actions svg{width:14px;height:14px}.course-document-grid{display:grid;grid-template-columns:minmax(0,730px) 146px;gap:clamp(28px,4.2vw,65px);max-width:1120px;margin:auto;padding:42px clamp(28px,4vw,62px) 45px}.course-document{min-width:0;font-size:14px;line-height:1.95;color:#505647}.course-doc-header{position:relative;margin-bottom:32px}.course-doc-cover{height:102px;border-radius:5px;background:#f0f3e3;position:relative;overflow:hidden;display:flex;align-items:center;padding:0 30px;color:#929e6e}.course-doc-cover>span{font-family:Arial;font-size:10px;letter-spacing:.22em}.course-cover-art{position:absolute;width:190px;right:20px;top:0;height:110px}.course-cover-art i{position:absolute;display:block;width:74px;height:96px;border:1px solid #b7c488;border-radius:3px;transform:rotate(22deg);right:8px;top:16px;background:#e5ebce}.course-cover-art i:nth-child(2){right:58px;top:24px;transform:rotate(-3deg);background:#d9e5a4}.course-cover-art i:nth-child(3){right:100px;top:39px;transform:rotate(-23deg);background:#d9ed43}.course-doc-icon{display:grid;place-items:center;position:relative;background:var(--lime);border:4px solid #fff;width:48px;height:48px;border-radius:11px;margin:-22px 0 22px 0}.course-doc-icon svg{width:24px;height:24px}.course-doc-eyebrow{display:block;font-size:10px;letter-spacing:.1em;color:#949b85;font-family:Arial,var(--sans);margin-bottom:8px}.course-doc-header h1{font-size:33px;font-weight:600;line-height:1.5;letter-spacing:-.035em;color:#2b3024;overflow-wrap:anywhere}.course-doc-description{font-size:14px;color:#818775;margin-top:9px;line-height:1.85}.course-doc-meta{display:flex;align-items:center;gap:8px;font-size:11px;color:#8a917e;margin-top:22px;padding-bottom:26px;border-bottom:1px solid #e9ece1;line-height:1.5}.course-avatar{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#edf1d9;color:#627637;font-size:11px}.course-doc-meta i{font-style:normal;margin:0 2px}.course-doc-type{margin-left:auto;font-size:10px}.course-section{scroll-margin-top:52px;margin-bottom:34px}.course-section h2{font-size:21px;line-height:1.6;font-weight:550;color:#323929;margin:0 0 16px;letter-spacing:-.02em}.course-section>p{margin:12px 0;line-height:2}.course-callout{display:flex;gap:13px;background:#f1f5dd;border:1px solid #e5ebcb;border-radius:5px;padding:18px 19px;margin:19px 0;line-height:1.8}.course-callout>span{color:#71872a;flex-shrink:0;font-size:20px;line-height:1.5}.course-callout strong{font-size:13px;font-weight:550;color:#4b5b2b}.course-callout p{font-size:13px;color:#788266;margin-top:4px;line-height:1.85}.course-callout.is-neutral{background:#f6f7f2;border-color:#e7eade}.course-callout.is-neutral>span{font-family:Georgia;color:#858b77}.course-callout.is-neutral strong{color:#626951}.course-list{padding-left:23px;margin:13px 0}.course-list li{padding-left:3px;margin:7px 0}.course-list li::marker{color:#7e8b51}.course-table-wrap{overflow-x:auto;border:1px solid #e1e6d5;border-radius:5px;margin:21px 0}.course-table-wrap table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.8;min-width:400px}.course-table-wrap th{font-weight:500;text-align:left;background:#f2f5e8;color:#647149}.course-table-wrap th,.course-table-wrap td{padding:13px 16px;vertical-align:top;border-bottom:1px solid #e5e9dc}.course-table-wrap td+td,.course-table-wrap th+th{border-left:1px solid #e5e9dc}.course-table-wrap tbody tr:last-child td{border-bottom:0}.course-steps{list-style:none;padding:0;margin:22px 0;display:grid;gap:0}.course-steps li{display:flex;gap:15px;padding:0 0 23px;position:relative}.course-steps li:last-child{padding-bottom:0}.course-steps li:not(:last-child):before{content:'';position:absolute;left:15px;top:33px;bottom:2px;width:1px;background:#e2e9ce}.course-steps li>span{background:#f0f4df;border:1px solid #e1e8c7;border-radius:50%;height:32px;width:32px;flex-shrink:0;display:grid;place-items:center;font:11px Arial;color:#7b8c48}.course-steps h3{font-size:14px;font-weight:500;line-height:1.8;color:#4d583a}.course-steps p{font-size:13px;color:#808971;margin-top:3px;line-height:1.8}.course-prompt{border:1px solid #dfe6d0;border-radius:6px;overflow:hidden;margin:20px 0;background:#fafcf4}.course-prompt>div:first-child{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;border-bottom:1px solid #e4ead8;font-size:10px;letter-spacing:.12em}.course-prompt button{background:#e8efcd;padding:6px 10px;border-radius:4px;font-size:11px;letter-spacing:0;white-space:nowrap}.course-prompt>p{font-family:Georgia,serif;font-size:15px;line-height:1.9;padding:18px;overflow-wrap:anywhere}.course-prompt-translation{padding:15px 18px;background:#f2f5e9;font-size:12px;line-height:1.9}.course-prompt-translation strong{font-weight:500}.course-prompt-translation p{margin-top:6px;color:#7d866b}.course-checklist{padding:0;list-style:none;margin:18px 0}.course-checklist li{margin:9px 0}.course-checklist label{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-size:13px;line-height:1.9}.course-checklist input{width:16px;height:16px;margin:4px 0 0;accent-color:#7e9535;flex-shrink:0}.course-checklist input:checked+span{color:#99a087;text-decoration:line-through}.course-doc-end{text-align:center;color:#9ca18f;border-top:1px solid #eaede1;margin-top:45px;padding-top:28px}.course-doc-end p{font-size:12px;margin-top:7px}.course-doc-end small{font-size:10px;display:block;margin-top:4px;color:#a0a591}.course-doc-pagination{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:32px 0 10px}.course-doc-pagination>a{display:flex;flex-direction:column;gap:5px;border-top:1px solid #e6eadd;padding-top:15px;line-height:1.7}.course-doc-pagination>a:hover{border-color:#a4b459}.course-doc-pagination>a:last-child{text-align:right}.course-doc-pagination small{font-size:10px;color:#949e81}.course-doc-pagination span{font-size:12px;color:#68744f}.course-toc{position:sticky;top:186px;align-self:start;padding-top:8px}.course-toc>span{font-size:11px;font-weight:500;color:#6a735b}.course-toc nav{border-left:1px solid #e6eadb;margin-top:17px;display:flex;flex-direction:column;gap:5px}.course-toc a{font-size:11px;color:#969e89;line-height:1.8;padding:6px 0 6px 13px;border-left:2px solid transparent;margin-left:-1px}.course-toc a[aria-current]{color:#657e23;border-left-color:#a6bf3b}.course-toc a:hover{color:#64753e}.course-toc>p{font-family:var(--serif);font-size:13px;color:#a5ad96;line-height:1.9;margin-top:37px;padding-left:14px}.course-missing{padding:80px 40px;line-height:2}.course-missing h1{font-size:28px}.course-missing p{margin:12px 0;color:var(--muted)}.course-missing a{text-decoration:underline}
@media(min-width:1600px){.course-workspace{grid-template-columns:292px minmax(0,1fr)}.course-document-grid{max-width:1240px;grid-template-columns:minmax(0,780px) 156px;gap:75px;padding-top:52px}}
@media(max-width:1199px){.course-workspace{grid-template-columns:245px minmax(0,1fr)}.course-document-grid{grid-template-columns:minmax(0,1fr);max-width:860px;padding:35px 42px}.course-toc{display:none}.course-toolbar{padding:0 30px}.course-nav a{font-size:11px}.course-gate-intro{padding-left:40px;padding-right:35px}}

.course-nav-group>.course-nav-empty-heading{display:flex;flex-direction:row;align-items:center;gap:7px;padding:5px 9px 5px 28px;min-height:31px;font-size:12px;font-weight:500;color:#5f674e}.course-nav-empty-heading>span{min-width:0;flex:1;overflow-wrap:anywhere}.course-nav-empty-heading small{margin-left:auto;font-size:10px;font-weight:400;color:#9a9f90;white-space:nowrap;flex-shrink:0}

/* Imported course resources, desktop reading layout. */
.course-resource-link{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#f6f8ef;border:1px solid #e4e9d7;border-radius:5px;padding:15px 18px;margin:14px 0;color:#586b32;font-size:13px;line-height:1.85}.course-resource-link>span{overflow-wrap:anywhere;min-width:0}.course-resource-link svg{width:17px;height:17px}.course-resource-link:hover{background:#eef3dd;border-color:#c8d59f}.course-download{font-size:11px;color:#657a32;text-decoration:underline;text-underline-offset:4px}.course-source-copy{border:1px solid #e1e6d5;background:#fafbf6;border-radius:5px;margin:16px 0;overflow:hidden}.course-source-copy>div{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 16px;border-bottom:1px solid #e6eadc;font-size:11px;color:#899276}.course-source-copy button{font-size:11px;background:#e9f0d2;padding:6px 10px;border-radius:4px;color:#596e2f}.course-source-copy>p{padding:15px 16px;font-size:13px;line-height:1.95;overflow-wrap:anywhere}.course-source-copy a{color:#657e36;text-decoration:underline;text-underline-offset:3px}

/* Feishu course documents: readable source formatting and protected media. */
.course-nav-group summary>span{min-width:0;flex:1;overflow-wrap:anywhere}
.course-nav-group summary small{flex-shrink:0;white-space:nowrap}
.course-nav a>svg{flex-shrink:0}
.course-nav a>span{flex:1;min-width:0;overflow-wrap:anywhere}
.course-nav a.is-child{padding-left:35px}
.course-nav-status{flex-shrink:0;font-size:9px;font-weight:400;line-height:1.8;color:#929878;white-space:nowrap;margin-top:1px}
.course-toolbar-actions{gap:14px;flex-shrink:0}
.course-sample-badge.is-upcoming{background:#f5f1df;color:#8b7d42}
.course-upcoming{border:1px solid #e8e2c8;background:#fbf9ed;color:#8b7d42;border-radius:5px;padding:14px 18px;margin:0 0 28px;font-size:13px;line-height:1.9}
.course-upcoming strong{font-weight:500}
.course-rich-text{white-space:pre-wrap;overflow-wrap:anywhere}
.course-rich-text a{color:#657e36;text-decoration:underline;text-underline-offset:3px}
.course-rich-text strong{font-weight:600;color:#414b31}
.course-rich-text mark{background:#f0f3b9;color:inherit;padding:1px 2px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.course-divider{border:0;border-top:1px solid #e2e6d8;margin:28px 0}
.course-section .course-content-heading{font-weight:550;color:#3f4931;line-height:1.8;letter-spacing:-.015em;margin:29px 0 11px}
.course-section h3.course-content-heading{font-size:18px}
.course-section h4.course-content-heading{font-size:16px}
.course-section h5.course-content-heading{font-size:15px}
.course-section h6.course-content-heading{font-size:14px;color:#657053}
.course-code{border:1px solid #dfe5d3;border-radius:5px;background:#f8faf3;overflow:hidden;margin:20px 0}
.course-code>div{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:10px 16px;border-bottom:1px solid #e3e8d9;color:#7a846b;font-size:11px;line-height:1.7}
.course-code>div>span{min-width:0;overflow-wrap:anywhere}
.course-code button{font-size:11px;background:#e8efcf;padding:6px 10px;border-radius:4px;color:#596e2f;white-space:nowrap;flex-shrink:0}
.course-code pre{margin:0;padding:18px 20px;max-width:100%;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.9 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#4f5b3d;tab-size:2}
.course-code code{font:inherit;white-space:inherit}
.course-code pre:focus-visible{outline:2px solid #a3b838;outline-offset:-3px}
.course-image{margin:24px 0;max-width:100%}
.course-image>a{display:block;position:relative;max-width:100%;border:1px solid #e4e8db;border-radius:5px;overflow:hidden;background:#f8faf4;cursor:zoom-in}
.course-image img{display:block;max-width:100%;width:auto;height:auto;margin:0 auto}
.course-image-zoom{position:absolute;right:10px;bottom:10px;padding:4px 9px;border-radius:4px;background:#fffffff0;color:#71814c;border:1px solid #e3e9d7;font-size:10px;line-height:1.8;pointer-events:none;opacity:.8}
.course-image>a:hover .course-image-zoom{opacity:1}
.course-image figcaption{margin-top:9px;text-align:center;font-size:11px;color:#929b83;line-height:1.9;overflow-wrap:anywhere;white-space:pre-wrap}
.course-quote{margin:20px 0;padding:5px 0 5px 21px;border-left:3px solid #c8d79b;color:#748061;background:transparent}
.course-quote>p{margin:9px 0;line-height:2}
.course-quote>:first-child{margin-top:0}
.course-quote>:last-child{margin-bottom:0}
.course-section{scroll-margin-top:160px}

/* Phone and tablet reading: keep the document full width, with modal navigation. */
.course-toolbar .course-mobile-nav,.course-mobile-drawer{display:none}
.course-doc-header h1:focus{outline:none}
body.course-navigation-open{overflow:hidden}
@media(max-width:980px){
  body[data-page="courses"] .site-header,body[data-page="courses"] .site-header.is-scrolled{height:64px;padding:0 max(20px,env(safe-area-inset-left)) 0 max(20px,env(safe-area-inset-right))}
  body[data-page="courses"] .header-library{display:none}
  body[data-page="courses"] .brand-cn{font-size:26px}
  .course-gate{grid-template-columns:1fr;padding-top:64px;min-height:100dvh}
  .course-gate-intro{padding:23px max(24px,env(safe-area-inset-left)) 28px}
  .course-back{font-size:12px;margin-bottom:22px;min-height:28px;display:inline-flex;align-items:center}
  .course-gate-intro>.eyebrow{font-size:10px}
  .course-gate-intro h1{font-size:clamp(33px,7.7vw,48px);line-height:1.4;margin:12px 0}
  .course-gate-intro h1 br{display:block}
  .course-gate-intro>p{font-size:13px;line-height:1.9}
  .course-gate-topics{gap:9px;margin-top:18px;font-size:11px}
  .course-gate-signature{display:none}
  .course-gate-panel{padding:28px 20px max(28px,env(safe-area-inset-bottom))}
  .course-gate-card{max-width:480px;border-radius:8px;padding:27px 24px}
  .course-lock-icon{width:40px;height:40px;margin-bottom:17px}
  .course-gate-card h2{font-size:30px}
  .course-gate-description{margin-bottom:24px;font-size:14px}
  .course-password-field input{font-size:16px;height:50px}
  .course-password-toggle{height:44px;top:3px}
  .course-unlock{height:50px;font-size:15px}
  .course-session-note{font-size:12px}
  .course-gate-caption{margin-top:18px}
  .course-workspace{display:block;padding-top:64px}
  .course-sidebar{display:none}
  .course-toolbar{top:64px;height:56px;padding:0 max(16px,env(safe-area-inset-left)) 0 max(16px,env(safe-area-inset-right));gap:8px}
  .course-breadcrumb{display:none}
  .course-toolbar-actions{gap:14px;min-width:0}
  .course-toolbar .course-mobile-nav{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 4px;font-size:13px;color:#4f5e32;white-space:nowrap}
  .course-toolbar .course-mobile-nav svg{width:18px;height:18px}
  .course-toolbar .course-mobile-nav:disabled{opacity:.4}
  .course-sample-badge{max-width:100px;overflow:hidden;text-overflow:ellipsis}
  .course-document-grid{display:block;max-width:760px;padding:24px max(22px,env(safe-area-inset-left)) max(32px,env(safe-area-inset-bottom))}
  .course-document{font-size:16px;line-height:1.95}
  .course-toc{display:none}
  .course-doc-cover{height:86px;padding:0 18px}
  .course-doc-cover>span{font-size:9px;letter-spacing:.12em;z-index:1}
  .course-cover-art{right:-40px;opacity:.8}
  .course-doc-icon{margin-bottom:14px}
  .course-doc-header h1{font-size:clamp(26px,6.5vw,34px);line-height:1.5}
  .course-doc-eyebrow{font-size:11px}
  .course-doc-description{font-size:14px;line-height:1.9}
  .course-doc-meta{flex-wrap:wrap;row-gap:12px;font-size:12px;padding-bottom:22px;margin-top:18px}
  .course-doc-type{font-size:12px}
  .course-download{font-size:12px;display:inline-flex;align-items:center;min-height:32px}
  .course-section{scroll-margin-top:38px;margin-bottom:32px}
  .course-section h2{font-size:22px}
  .course-section h3.course-content-heading{font-size:19px}
  .course-section h4.course-content-heading{font-size:17px}
  .course-section h5.course-content-heading,.course-section h6.course-content-heading{font-size:16px}
  .course-section>p{line-height:1.95;margin:16px 0}
  .course-callout{padding:16px 14px;gap:10px}
  .course-callout>div,.course-steps li>div{min-width:0;overflow-wrap:anywhere}
  .course-callout strong,.course-callout p,.course-upcoming{font-size:14px}
  .course-table-wrap{max-width:100%;overscroll-behavior-x:contain}
  .course-table-wrap table{font-size:14px}
  .course-table-wrap th,.course-table-wrap td{padding:12px}
  .course-steps h3{font-size:16px}
  .course-steps p,.course-checklist label{font-size:15px}
  .course-checklist label{padding:5px 0}
  .course-checklist input{width:20px;height:20px}
  .course-code>div,.course-source-copy>div,.course-prompt>div:first-child{padding:8px 12px;gap:8px;letter-spacing:0}
  .course-code button,.course-source-copy button,.course-prompt button{min-height:44px;font-size:12px;padding:8px 10px;flex-shrink:0}
  .course-code pre{padding:14px;font-size:13px}
  .course-source-copy>p,.course-prompt-translation{padding:14px;font-size:14px}
  .course-prompt>p{padding:14px;font-size:16px}
  .course-resource-link{padding:14px;font-size:14px;gap:12px}
  .course-quote{padding-left:15px}
  .course-image{margin:22px 0}
  .course-image-zoom{font-size:11px;right:7px;bottom:7px}
  .course-image figcaption{font-size:12px}
  .course-doc-end small{font-size:11px;overflow-wrap:anywhere}
  .course-doc-pagination{gap:18px}
  .course-doc-pagination>a{min-width:0;min-height:72px}
  .course-doc-pagination small{font-size:12px}
  .course-doc-pagination span{font-size:14px;overflow-wrap:anywhere}
  .course-missing{padding:40px 22px}
  .course-mobile-drawer{position:fixed;inset:0 auto 0 0;width:min(90vw,420px);max-width:100vw;height:100dvh;max-height:100dvh;margin:0;padding:0;border:0;border-right:1px solid #dce2cd;background:#f7f8f2;color:var(--ink);overflow:hidden;overscroll-behavior:contain}
  .course-mobile-drawer[open]{display:flex;flex-direction:column}
  .course-mobile-drawer::backdrop{background:#26282180}
  .course-mobile-drawer [hidden]{display:none}
  .course-mobile-drawer-head{display:flex;justify-content:space-between;align-items:center;padding:12px max(18px,env(safe-area-inset-left));gap:12px;border-bottom:1px solid #e2e6d6;flex-shrink:0}
  .course-mobile-drawer-head h2{font-size:18px;font-weight:500}
  .course-mobile-drawer-head>button{display:grid;place-items:center;width:44px;height:44px}
  .course-mobile-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:15px 18px 0;padding:4px;background:#e9edde;border-radius:6px;flex-shrink:0}
  .course-mobile-tabs button{font-size:14px;min-height:44px;border-radius:4px;color:#768062}
  .course-mobile-tabs button[aria-pressed="true"]{background:white;color:#3c4e21;box-shadow:0 1px 4px #303a1410}
  .course-mobile-tabs button:disabled{opacity:.4}
  .course-mobile-lessons{min-height:0;flex:1;display:flex;flex-direction:column;overflow:hidden;padding:23px 16px max(20px,env(safe-area-inset-bottom))}
  .course-mobile-lessons .course-space{display:none}
  .course-mobile-lessons .course-search{margin:0 2px 24px;min-height:46px;flex-shrink:0}
  .course-mobile-lessons .course-search input{font-size:16px;height:44px}
  .course-mobile-lessons .course-nav-label{font-size:12px;flex-shrink:0}
  .course-mobile-lessons .course-nav-label small{font-size:11px}
  .course-mobile-lessons .course-nav{min-height:0;overflow:auto;overscroll-behavior:contain;padding-right:3px}
  .course-mobile-lessons .course-nav-group summary{font-size:14px;min-height:44px}
  .course-mobile-lessons .course-nav-group summary small{font-size:11px}
  .course-mobile-lessons .course-nav-group>.course-nav-empty-heading{font-size:14px;min-height:44px}
  .course-mobile-lessons .course-nav a{font-size:14px;min-height:46px;padding-top:12px;padding-bottom:12px}
  .course-mobile-lessons .course-nav-status{font-size:10px}
  .course-mobile-lessons .course-sidebar-bottom{padding-top:12px;flex-shrink:0}
  .course-mobile-lessons .course-sidebar-note{display:none}
  .course-mobile-lessons .course-sidebar-bottom>button{min-height:46px;font-size:13px}
  .course-mobile-outline{min-height:0;overflow:auto;overscroll-behavior:contain;padding:24px 20px max(24px,env(safe-area-inset-bottom))}
  .course-mobile-outline>p{font-size:13px;line-height:1.8;color:#858e74;margin-bottom:18px;overflow-wrap:anywhere}
  .course-mobile-outline nav{display:flex;flex-direction:column;gap:5px}
  .course-mobile-outline a{display:flex;gap:12px;align-items:baseline;padding:13px 10px;min-height:48px;font-size:15px;line-height:1.8;border-left:2px solid transparent;overflow-wrap:anywhere}
  .course-mobile-outline a>span{font:11px Arial;color:#909c78;flex-shrink:0}
  .course-mobile-outline a[aria-current]{border-color:#94ac32;background:#eaf0d7;color:#506a1d}
}
@media(max-width:360px){
  .course-document-grid{padding-left:18px;padding-right:18px}
  .course-toolbar-actions{gap:7px}
  .course-sample-badge{max-width:65px;font-size:9px}
  .course-toolbar .course-mobile-nav{font-size:12px;gap:5px}
  .course-doc-type{width:100%;margin-left:31px}
  .course-gate-intro{padding-left:20px;padding-right:20px}
  .course-gate-intro h1{font-size:29px}
  .course-gate-topics{gap:6px;font-size:10px}
  .course-gate-card{padding:25px 20px}
}