/* Shared tutorial navigation: a fixed hierarchy with an independently scrollable chapter list. */
.course-layout{display:grid;grid-template-columns:288px minmax(0,1fr);gap:30px;align-items:start;margin:0}.course-layout:before,.course-layout:after{display:none}.course-layout>.course-reader{width:auto;min-width:0;float:none;padding:0}.course-layout .article--big{margin-top:0}.course-reader:focus{outline:none}.course-navigation{position:sticky;top:102px;display:flex;flex-direction:column;width:auto;min-width:0;float:none;padding:0;margin:0;max-height:calc(100dvh - 210px);border:1px solid #d9e5dc!important;border-radius:12px;background:#fff;overflow:hidden;box-shadow:0 5px 18px #163e2305}.course-nav-header{flex-shrink:0;padding:19px 21px 17px;background:linear-gradient(135deg,#edf5ef,#f8fbf8);border-bottom:1px solid #e1ebe4}.course-nav-back{display:inline-flex;align-items:center;gap:7px;min-height:30px;margin-bottom:16px;font-size:11px;color:#587c63!important}.course-nav-back:hover{color:#0c6b46!important}.course-nav-eyebrow{display:block;font-size:9px;font-weight:600;letter-spacing:1.7px;color:#73937d;margin-bottom:8px}.site-theme .course-nav-header h2{font-size:18px;line-height:1.6;letter-spacing:-.2px;margin:0 0 8px;color:#254d33;overflow-wrap:anywhere}.course-nav-header p{font-size:11px;color:#6f8777;line-height:1.8;margin:0}.course-nav-tools{padding:15px 16px 10px;flex-shrink:0}.course-nav-search{display:flex;align-items:center;gap:8px;padding:0 10px;background:#f7faf7;border:1px solid #dce7df;border-radius:7px;min-height:42px}.course-nav-search:focus-within{border-color:#51a977;box-shadow:0 0 0 3px #44b78b12}.course-nav-search>svg{width:16px;height:16px;fill:none;stroke:#7d9987;stroke-width:1.6;stroke-linecap:round;flex-shrink:0}.course-nav-search input{min-width:0;flex:1;width:100%;padding:10px 0;border:0;border-radius:0;background:transparent;box-shadow:none;outline:none;font-size:12px;color:#315e40;line-height:1.6;appearance:none}.course-nav-search input::placeholder{color:#819687;opacity:1}.course-nav-search input::-webkit-search-cancel-button{appearance:none}.course-nav-clear{border:0;border-radius:5px;color:#5f7b69;background:transparent;font-size:20px;width:29px;min-width:29px;height:34px;line-height:1;margin-right:-5px;padding:0;display:grid;place-items:center}.course-nav-clear:hover{background:#e9f2ec}.course-nav-search-status{display:block;margin-top:10px;font-size:11px;color:#708a79}.course-nav-scroll{flex:1;min-height:0;overflow:auto;padding:0 11px 14px;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#c4d7c9 transparent;scroll-padding:12px}.course-nav-scroll:focus{outline:none}.course-nav-overview{display:flex;align-items:center;gap:10px;min-height:43px;padding:9px 12px;margin:3px 4px 12px;border:1px solid transparent;border-radius:7px;color:#597a63!important;font-size:12px;line-height:1.7}.course-nav-overview>svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.4;stroke-linejoin:round;flex-shrink:0}.course-nav-overview>span:first-of-type{flex:1}.course-nav-overview>span:last-child{font-size:12px;color:#88a28f}.course-nav-overview[aria-current]{background:#eff6f1;border-color:#d8e8dd;color:#0c6b46!important;font-weight:600}.course-nav-overview:hover{background:#f1f7f3}.course-nav-section-label{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:7px 14px 12px}.site-theme .course-nav-section-label h3{font-size:11px;font-weight:600;color:#758d7d;letter-spacing:.5px;margin:0}.course-nav-section-label>span{color:#8ba293;font-size:10px;min-width:21px;text-align:center;background:#f1f6f2;border-radius:4px;padding:1px 5px;font-variant-numeric:tabular-nums}.course-chapter-list{list-style:none;margin:0;padding:0 3px}.course-chapter-list>li{list-style:none;margin:3px 0;padding:0}.course-chapter-list a{display:flex;align-items:flex-start;gap:10px;position:relative;min-height:46px;padding:12px 13px;border:1px solid transparent;border-radius:7px;text-decoration:none!important;line-height:1.75;color:#536f5d!important}.course-chapter-number{font:10px/22px ui-monospace,SFMono-Regular,Consolas,monospace;color:#95a99c;flex-shrink:0;min-width:20px;font-variant-numeric:tabular-nums}.course-chapter-title{min-width:0;flex:1;font-size:12px;overflow-wrap:anywhere}.course-chapter-list a:hover{background:#f3f8f4;color:#22653e!important}.course-chapter-list a:hover .course-chapter-number{color:#57946d}.course-chapter-list a[aria-current]{background:#eaf4ed;border-color:#cce2d3;box-shadow:inset 3px 0 #1c7b4b;color:#0c6137!important;font-weight:600}.course-chapter-list a[aria-current] .course-chapter-number{color:#3f8860}.course-chapter-indicator{align-self:center;flex-shrink:0;width:5px;height:5px;border-radius:50%;background:#328452;margin-left:1px}.course-nav-empty{padding:15px 13px;color:#819688;font-size:12px;line-height:1.9}.course-nav-no-results{padding:22px 14px 25px;text-align:center}.course-nav-no-results p{font-size:12px;color:#52715d;margin:0 0 9px}.course-nav-no-results>span{font-size:11px;line-height:1.9;color:#83998b}.course-nav-extras{border-top:1px solid #e5eee7;margin:16px 7px 0;padding-top:8px}.course-nav-extras details{border-bottom:1px solid #edf2ee}.course-nav-extras details:last-child{border:0}.course-nav-extras summary{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 7px;min-height:45px;list-style:none;cursor:pointer;color:#5b7b65;font-size:12px;font-weight:500}.course-nav-extras summary::-webkit-details-marker{display:none}.course-nav-extras summary>svg{width:16px;height:16px;fill:none;stroke:#8ba293;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .15s}.course-nav-extras details[open] summary>svg{transform:rotate(90deg)}.course-nav-extras summary:hover{color:#0c6b46}.course-nav-resources{list-style:none;margin:0;padding:0 0 13px}.course-nav-resource{list-style:none;margin:0;padding:0}.course-nav-resource a{display:block;position:relative;min-height:40px;padding:9px 22px 9px 11px;line-height:1.8;font-size:11px;color:#7b9182;overflow-wrap:anywhere;text-decoration:none!important;border-radius:6px}.course-nav-resource a:after{content:'↗';position:absolute;right:7px;top:10px;font-size:10px;color:#95aa9b}.course-nav-resource a:hover{background:#f3f8f4;color:#326d48}.course-nav-footer{flex-shrink:0;padding:14px 17px;background:#fcfdfc;border-top:1px solid #e1ebe4}.course-nav-footer>p{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:10px;line-height:1.7;color:#809789;margin:0 0 11px}.course-nav-footer strong{font-size:11px;font-weight:500;color:#477a59;font-variant-numeric:tabular-nums}.course-nav-pager{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:9px}.course-nav-pager>a,.course-nav-pager>span{display:flex;align-items:center;justify-content:center;min-height:38px;border:1px solid #dce7df;border-radius:6px;background:#fff;color:#3d7752;font-size:11px;white-space:nowrap}.course-nav-pager>a:hover{background:#edf6ef;border-color:#b5d7c1}.course-nav-pager>span{background:#f8faf8;border-color:#edf2ee;color:#a1b2a7}.course-nav-start{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:42px;border:1px solid #c9e0d1;border-radius:7px;background:#edf6ef;color:#1d6b3d!important;padding:10px 13px;font-size:12px;font-weight:500}.course-nav-start:hover{background:#e2f0e6}.course-overview-action{display:flex;align-items:center;gap:22px;border-top:1px solid #e3ece6;margin-top:30px;padding-top:25px;flex-wrap:wrap}.course-overview-action>span{font-size:12px;color:#7a9283}.course-menu-toggle{display:none}.course-reader .article__footer .tags{overflow-wrap:anywhere;line-height:1.9}.course-reader .article__footer .article-tag{max-width:100%}
@media(min-width:992px) and (max-height:700px){.course-navigation{max-height:calc(100dvh - 130px)}.course-nav-header{padding:13px 18px}.course-nav-eyebrow,.course-nav-header p{display:none}.course-nav-back{margin-bottom:6px;min-height:25px}.site-theme .course-nav-header h2{font-size:16px;margin-bottom:0}.course-nav-tools{padding-top:10px}.course-nav-footer{padding:11px 16px}}
@media(min-width:992px) and (max-width:1199px){.course-layout{grid-template-columns:264px minmax(0,1fr);gap:23px}.course-nav-header{padding-left:18px;padding-right:18px}.course-nav-tools{padding-left:13px;padding-right:13px}.course-chapter-list a{padding-left:11px;padding-right:10px;gap:9px}}
@media(max-width:991px){.course-layout{grid-template-columns:minmax(0,1fr);gap:16px}.course-menu-toggle{position:relative;display:flex;align-items:center;gap:12px;width:100%;margin:0;min-height:68px;padding:13px 17px;text-align:left;background:#fff;border:1px solid #d9e7de;border-radius:9px;color:#315f40}.course-menu-toggle:after{display:none}.course-menu-toggle>span:nth-child(2){flex:1;min-width:0}.course-menu-toggle strong{font-size:14px;font-weight:600;display:block;color:#2d6040;line-height:1.7}.course-menu-toggle small{font-size:10px;font-weight:400;color:#7e9a88;margin-left:8px}.course-menu-current{display:block;color:#7f9788;font-size:11px;line-height:1.8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px}.course-menu-toggle__icon{display:grid;place-items:center;width:34px;height:34px;border-radius:7px;background:#eef6f0;color:#48815c;flex-shrink:0}.course-menu-toggle__icon svg{width:17px;height:17px;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;fill:none}.course-menu-toggle__chevron{width:17px;height:17px;stroke:#6e967c;stroke-width:1.5;fill:none;flex-shrink:0;transition:transform .15s}.course-menu-toggle[aria-expanded=true]{background:#f4f9f5;border-color:#b8d6c2}.course-menu-toggle[aria-expanded=true] .course-menu-toggle__chevron{transform:rotate(180deg)}.course-navigation{display:none;position:static;top:auto;max-height:min(75dvh,680px);margin:0;overflow:hidden;border-radius:9px}.course-navigation.is-open{display:flex}.course-nav-header{padding:18px 20px 16px}.course-nav-back{margin-bottom:10px;min-height:36px}.site-theme .course-nav-header h2{font-size:18px}.course-nav-header p{font-size:12px}.course-nav-eyebrow{font-size:9px}.course-nav-tools{padding:14px 17px 12px}.course-nav-search{min-height:48px;gap:10px;padding-left:12px}.course-nav-search input{font-size:16px;min-height:46px;padding-top:10px;padding-bottom:10px}.course-nav-clear{min-width:40px;height:44px;font-size:23px}.course-nav-scroll{max-height:none;padding-left:12px;padding-right:12px}.course-nav-section-label h3{font-size:12px}.course-chapter-list a{min-height:48px;padding:12px 14px;gap:12px}.course-chapter-title{font-size:14px;line-height:1.8}.course-chapter-number{font-size:11px;line-height:25px}.course-nav-overview{min-height:48px;font-size:13px;padding:11px 13px}.course-nav-section-label{padding-top:9px;padding-bottom:13px}.course-nav-extras summary{min-height:48px;font-size:13px;padding:14px 8px}.course-nav-resource a{font-size:12px;min-height:44px;padding:11px 25px 11px 12px}.course-nav-footer{padding:15px 18px}.course-nav-footer>p{font-size:11px}.course-nav-footer strong{font-size:12px}.course-nav-pager>a,.course-nav-pager>span{font-size:12px;min-height:44px}.course-nav-start{min-height:46px;font-size:13px}.course-nav-search-status{font-size:12px}.course-overview-action{gap:15px}.course-overview-action>span{font-size:12px}}
@media(max-width:480px){.course-layout{gap:14px}.ui-course-page .community-breadcrumb{font-size:11px;padding-top:5px;padding-bottom:18px}.course-nav-header{padding:16px 18px 14px}.course-nav-header p{font-size:11px}.course-nav-eyebrow{display:none}.site-theme .course-nav-header h2{font-size:17px}.course-nav-back{min-height:32px;margin-bottom:9px}.course-nav-tools{padding:12px 14px 10px}.course-nav-scroll{padding-left:9px;padding-right:9px}.course-navigation{max-height:76dvh}.course-menu-toggle{padding:12px 14px;gap:11px}.course-chapter-list a{padding-left:12px;padding-right:12px;gap:10px}.course-nav-footer{padding:12px 16px}.course-overview-action .home-button{width:100%}}
@media(max-height:560px) and (max-width:991px){.course-navigation{max-height:88dvh}.course-nav-header{display:none}.course-nav-footer>p{display:none}.course-nav-footer{padding:10px 15px}.course-nav-tools{padding-top:10px;padding-bottom:8px}}
@media(prefers-reduced-motion:reduce){.course-nav-extras summary>svg,.course-menu-toggle__chevron{transition:none}}
/* Override the legacy wrapper spacing so the menu and reader share a clean top edge. */
.ui-course-page>.content-wrapper{padding-top:0;padding-bottom:0}.site-theme .ui-course-page .course-navigation{margin:0}.course-chapter-title{font-size:13px}.course-nav-search input{font-size:13px}.course-nav-pager>a,.course-nav-pager>span{font-size:12px;min-height:40px}.course-nav-header{position:relative}.course-nav-close{display:none}
@media(max-width:991px){.course-navigation{max-height:calc(100dvh - 255px)}.course-chapter-title{font-size:14px}.course-nav-search input{font-size:16px}.course-nav-pager>a,.course-nav-pager>span{min-height:44px}.course-nav-close{display:grid;place-items:center;position:absolute;right:10px;top:10px;width:40px;height:40px;min-height:40px;background:transparent;border:0;border-radius:6px;color:#658b72}.course-nav-close:hover{background:#e5f0e8}.course-nav-close svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}}
@media(max-height:560px) and (max-width:991px){.course-navigation{max-height:85dvh}}