.icon{width:20px;height:20px;flex:none;vertical-align:middle}.rail-label{font-size:0.75rem;letter-spacing:.065em}.small-book{font-size:0.75rem;letter-spacing:.07em}.eyebrow{font-size:0.75rem;letter-spacing:.105em}.chapter-number{font-size:0.75rem;letter-spacing:.06em}.role-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.role-card-top .icon{color:#56758b;width:22px;height:22px}.role-card{position:relative;overflow:hidden}.role-card:before{content:'';position:absolute;left:0;top:26px;bottom:26px;width:3px;background:var(--red)}.role-card:nth-child(2):before{background:var(--blue)}.role-card:nth-child(3):before{background:var(--navy)}.role-card h2{margin-top:18px}.role-card .text-link{font-size:0.875rem}.role-card p{font-size:0.9375rem}.breadcrumb{flex-wrap:wrap;gap:7px 12px}.breadcrumb a:hover{text-decoration:underline}.breadcrumb .breadcrumb-current{color:var(--ink)}.subtle-link{font-size:0.875rem}.rail-link .icon{width:18px;height:18px}.rail-link{gap:10px;padding-left:10px;padding-right:10px}.rail-link>span:last-child{font-size:0.75rem}.video-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:19px}.video-card{min-width:0;display:flex;flex-direction:column;border-radius:7px}.video-cover{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:7px;background:#0b233c;isolation:isolate}.video-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease,filter .25s ease;filter:brightness(.9)}.video-card:hover .video-cover img{transform:scale(1.035);filter:brightness(.7)}.play-badge{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:38px;height:38px;display:grid;place-items:center;border-radius:50%;color:var(--navy);background:#fffffff0;box-shadow:0 3px 12px #0003}.play-badge .icon{width:18px;height:18px;margin-left:1px;fill:currentColor;stroke-width:0}.duration{position:absolute;bottom:8px;right:8px;color:white;background:#091c2fe8;padding:2px 6px;font-size:0.75rem;font-weight:600;border-radius:3px}.video-card-copy{padding-top:15px;display:flex;flex-direction:column;flex:1}.video-audience{font-size:0.75rem;font-weight:650;letter-spacing:.07em;color:var(--muted);margin-bottom:6px}.video-card h3{font-size:0.9375rem;line-height:1.55;font-weight:750}.watch-label{font-size:0.8125rem;font-weight:600;color:var(--blue);padding-top:11px;margin-top:auto}.video-card:hover h3{color:var(--blue)}.essentials{margin-top:43px}.section-description{color:var(--muted);font-size:0.875rem;margin-top:-10px;margin-bottom:20px}.guide-list{border-top:1px solid var(--line)}.guide-row{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:15px;padding:23px 12px 23px 0;border-bottom:1px solid var(--line);transition:background .15s}.guide-row:hover{background:#edf2f6}.guide-row:hover h3{color:var(--blue)}.row-number{font-size:0.75rem;letter-spacing:.04em;color:var(--muted);align-self:start;margin-top:3px;font-variant-numeric:tabular-nums}.row-copy h3{font-size:1.0rem;font-weight:700}.row-copy p{font-size:0.875rem;line-height:1.6;color:var(--muted);margin-top:5px}.status{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;align-self:center;font-size:0.8125rem}.status.coming{color:#5c6d7d;background:#edf0f3;border:1px solid #e0e5e9;padding:4px 9px;border-radius:4px}.status.available{color:#126b4c;font-weight:600}.status .icon{width:14px;height:14px}.status-duration{color:var(--muted);font-size:0.75rem;margin-left:5px;font-weight:500}.page-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:25px;margin-top:53px;color:var(--muted);font-size:0.75rem}.page-footer span:first-child{font-weight:600;color:var(--ink)}.role-intro{display:flex;gap:22px;align-items:flex-start}.chapter-flag{font-family:Manrope,sans-serif;font-size:1.5625rem;font-weight:750;background:#e8eef4;border-top:3px solid var(--red);width:56px;height:72px;display:grid;place-items:center;flex:none}.role-intro h1{font-size:clamp(2rem,3vw,2.7rem);max-width:670px}.role-intro .eyebrow{margin-bottom:9px}.chapter-meta{display:flex;align-items:center;gap:12px;font-size:0.8125rem;margin-top:22px;color:var(--muted);flex-wrap:wrap}.chapter-meta span+span{border-left:1px solid #bec9d2;padding-left:12px}.notice{padding:18px 21px;display:flex;align-items:flex-start;gap:14px;border:1px solid #d9e4ed;border-radius:6px;background:#eef4f8;color:#466175;font-size:0.875rem}.notice .icon{margin-top:2px}.topic-section{margin-top:40px}.topic-section .section-heading{margin-bottom:18px}.topic-section h2{font-size:1.25rem}.section-index{font-size:0.75rem;color:var(--muted);font-variant-numeric:tabular-nums}.chapter-end{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:40px;padding:23px 0;border-top:1px solid var(--line);font-size:0.875rem;color:var(--muted)}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 28px}.library-grid .video-card h3{font-size:1.25rem}.library-grid .video-audience{font-size:0.75rem;margin-bottom:8px}.library-grid .watch-label{font-size:0.875rem}.library-grid .play-badge{width:48px;height:48px}.library-grid .play-badge .icon{width:22px;height:22px}.article-header{margin-bottom:26px}.article-header h1{font-size:clamp(1.875rem,3vw,2.7rem);max-width:850px;line-height:1.2}.article-description{color:var(--muted);margin-top:16px;max-width:720px;line-height:1.7;font-size:1.0rem}.article-meta{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:20px;color:var(--muted);font-size:0.8125rem}.article-meta .status{font-size:0.875rem}.video-player-wrap{background:var(--navy);border-radius:8px;overflow:hidden}.tutorial-player{display:block;width:100%;aspect-ratio:16/9;background:var(--navy)}.video-help{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:0.8125rem;padding:15px 0 24px}.video-help span:first-child{display:flex;align-items:center;gap:7px}.video-help .icon{height:16px;width:16px}.transcript{background:white;border:1px solid var(--line);border-radius:6px}.transcript summary{padding:19px 21px;display:flex;align-items:center;gap:11px;font-weight:600;font-size:0.875rem;cursor:pointer;list-style:none;min-height:58px}.transcript summary::-webkit-details-marker{display:none}.expand-symbol{margin-left:auto;font-size:1.375rem;font-weight:400}.transcript[open] .expand-symbol{transform:rotate(45deg)}.transcript-content{padding:5px 28px 28px;max-width:850px}.transcript-section{margin-top:22px}.transcript-section h3{font-size:1.0rem}.transcript-section p{font-size:1.0rem;color:var(--muted);line-height:1.8;margin-top:7px}.example-note{font-size:0.8125rem;color:var(--muted);margin-top:19px;line-height:1.7}.guide-pagination{display:grid;grid-template-columns:1fr 1fr;gap:30px;border-top:1px solid var(--line);padding-top:24px;margin-top:36px}.guide-pagination a{display:flex;flex-direction:column;gap:8px;padding:7px 0}.guide-pagination a:hover strong{text-decoration:underline}.guide-pagination span{font-size:0.75rem;letter-spacing:.06em;color:var(--muted)}.guide-pagination strong{font-size:0.875rem;font-weight:600;max-width:330px}.guide-pagination .next-topic{text-align:right;align-items:end}.related-videos .video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.placeholder-panel{background:white;border:1px solid var(--line);border-radius:8px;padding:46px 30px;display:flex;align-items:center;flex-direction:column;text-align:center}.placeholder-icon{display:grid;place-items:center;width:58px;height:58px;background:#edf3f7;border-radius:50%;color:#496a84;margin-bottom:24px}.placeholder-icon .icon{width:27px;height:27px}.placeholder-panel .eyebrow{font-size:0.75rem;color:var(--muted);margin-bottom:10px}.placeholder-panel h2{font-size:1.5625rem}.placeholder-panel p{font-size:1.0rem;line-height:1.75;color:var(--muted);max-width:435px;margin-top:13px}.primary-link{background:var(--navy);color:#fff;padding:12px 20px;border-radius:5px;font-size:0.875rem;font-weight:550;display:inline-flex;align-items:center;justify-content:center;min-height:46px;margin-top:25px}.primary-link:hover{background:#183e5d}.placeholder-panel>.subtle-link{margin-top:18px}.chapter-links{display:flex;flex-direction:column;gap:3px}.chapter-links a{font-size:0.75rem;line-height:1.55;padding:8px 12px;color:var(--muted);border-left:2px solid transparent}.chapter-links a:hover{color:var(--ink)}.chapter-links a[aria-current]{border-left-color:var(--red);color:var(--ink);background:#f7f9fb;font-weight:650}.media-error{background:#fff1f1;color:#92242e;padding:20px}.media-error a{text-decoration:underline}
.status.video-preview{position:relative;display:block;width:128px;aspect-ratio:16/9;flex:none;overflow:hidden;padding:0;border:1px solid #091c2f1a;border-radius:5px;background:var(--navy);color:white;isolation:isolate;line-height:1;font-family:inherit}.video-preview img{display:block;width:100%;height:100%;object-fit:cover;transition:filter .18s ease}.preview-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:#fffffff2;color:var(--navy);box-shadow:0 2px 8px #0003}.preview-play .icon{width:12px;height:12px;fill:currentColor;stroke:none;margin-left:2px}.preview-duration{position:absolute;bottom:4px;right:4px;padding:3px 4px;border-radius:2px;background:#091c2ff0;color:white;font-size:.6875rem;font-weight:600;font-variant-numeric:tabular-nums}.guide-row:hover .video-preview img,.guide-row:focus-visible .video-preview img,button.video-preview:hover img,button.video-preview:focus-visible img{filter:brightness(.72)}button.video-preview{cursor:pointer}button.video-preview:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.article-meta .video-preview{margin-right:2px}@media(max-width:760px){.status.video-preview{width:112px}.article-meta{column-gap:14px}.preview-play{width:23px;height:23px}}@media(prefers-reduced-motion:reduce){.video-preview img{transition:none}}
.site-header{gap:24px}.header-nav{margin-left:auto;gap:24px}.header-actions{display:flex;align-items:center;gap:12px;flex:none}.language-switch{display:flex;align-items:center;padding:3px;border:1px solid var(--line);border-radius:6px;gap:2px;background:var(--paper)}.language-switch button{border:0;border-radius:3px;background:transparent;color:var(--muted);min-width:38px;min-height:36px;padding:6px 8px;font-size:.8125rem;font-weight:700;cursor:pointer}.language-switch button[aria-pressed="true"]{background:var(--navy);color:white}.language-switch button:hover:not([aria-pressed="true"]){background:#e6edf3;color:var(--ink)}.video-unavailable .video-cover{background:#eaf0f5;border:1px solid var(--line)}.video-placeholder{height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;text-align:center;padding:16px;color:var(--muted);font-size:.8125rem}.video-placeholder>.icon{width:26px;height:26px}.video-unavailable .watch-label{color:var(--muted)}.status.coming{white-space:normal;max-width:160px;text-align:center}.guide-row{grid-template-columns:32px minmax(0,1fr) auto}.related-videos .video-grid:has(>.video-card:only-child){grid-template-columns:minmax(0,340px)}@media(min-width:761px) and (max-width:1050px){.site-header{gap:14px;padding:0 22px}.header-nav{gap:16px;font-size:.8125rem}.brand{gap:12px}.brand img{width:50px}.brand>span:last-child{font-size:1rem}}@media(max-width:760px){:root{--header:116px}.site-header{display:grid;grid-template-columns:1fr auto;grid-template-rows:64px 43px;gap:0 12px;padding:0 20px 9px}.header-actions{display:contents}.language-switch{grid-column:2;grid-row:1}.brand{grid-column:1;grid-row:1}.menu-toggle{grid-column:1/-1;grid-row:2;justify-self:stretch;text-align:center;min-height:38px;padding:6px 12px}.status.coming{max-width:none;text-align:left}.video-placeholder{padding:12px;font-size:.75rem;gap:7px}.video-placeholder>.icon{width:22px;height:22px}.video-grid .video-unavailable .video-cover{min-height:95px}.article-meta{row-gap:12px}}@media(max-width:360px){.site-header{padding-left:15px;padding-right:15px}.language-switch button{min-width:34px;padding:6px}.brand-divider{display:none}.brand{gap:8px}}
@media(min-width:1600px){.video-card h3{font-size:1.0625rem}.video-audience{font-size:0.75rem}}
@media(max-width:1200px){.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.video-card h3{font-size:1.0625rem}.video-audience{font-size:0.75rem}.role-card-top .icon{display:none}.role-card p{font-size:0.875rem}.role-card .text-link{font-size:0.8125rem}.sidebar{padding-left:12px;padding-right:12px}.rail-link{font-size:0.8125rem;gap:8px}}
@media(max-width:900px) and (min-width:761px){.role-card{padding:17px 13px}.role-grid{gap:10px}.chapter-number{font-size:0.75rem}.role-card h2{font-size:1.125rem}.guide-row{grid-template-columns:22px 1fr;gap:10px}.guide-row>.status{grid-column:2;justify-self:start}.related-videos .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.role-card-top{grid-column:1/-1}.role-card-top .icon{display:block;height:18px;width:18px}.role-card h2{margin-top:3px}.role-card .text-link{font-size:0.75rem}.role-card:before{top:19px;bottom:19px}.eyebrow{font-size:0.75rem}.chapter-number{font-size:0.75rem}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 14px}.video-card-copy{padding-top:11px}.video-audience{font-size:0.75rem;letter-spacing:.025em}.video-card h3{font-size:0.875rem}.watch-label{font-size:0.75rem;padding-top:8px}.play-badge{width:31px;height:31px}.play-badge .icon{height:15px;width:15px}.duration{bottom:5px;right:5px;font-size:0.75rem;padding:1px 5px}.section-heading{align-items:start}.section-heading .subtle-link{font-size:0.75rem;white-space:normal;text-align:right;max-width:110px;padding:4px 0}.section-heading h2{font-size:1.3125rem}.essentials{margin-top:37px}.section-description{font-size:0.875rem;line-height:1.7;margin-top:-7px}.guide-row{grid-template-columns:23px 1fr;gap:5px 9px;padding:20px 0}.row-copy h3{font-size:1.0rem}.row-copy p{font-size:0.875rem;margin-top:7px}.guide-row>.status{grid-column:2;justify-self:start;margin-top:8px}.status{font-size:0.75rem}.row-number{font-size:0.75rem}.page-footer{margin-top:34px;font-size:0.75rem;gap:12px;flex-wrap:wrap}.page-footer span:last-child{font-size:0.75rem}.chapter-flag{width:42px;height:58px;font-size:1.375rem}.role-intro{gap:15px}.role-intro h1{font-size:1.8125rem}.role-intro p{margin-left:-57px;margin-top:22px}.role-intro .chapter-meta{margin-left:-57px;font-size:0.75rem;margin-top:17px}.notice{padding:16px;font-size:0.875rem}.notice .icon{width:18px;height:18px}.topic-section{margin-top:30px}.topic-section .section-heading{margin-bottom:14px}.topic-section h2{font-size:1.1875rem}.chapter-end{flex-direction:column;align-items:start;gap:12px;margin-top:28px;padding:23px 0 0;font-size:0.875rem}.chapter-end .subtle-link{font-size:0.875rem;white-space:normal}.library-grid{grid-template-columns:1fr;gap:30px}.library-grid .video-card h3{font-size:1.25rem}.library-grid .video-audience{font-size:0.75rem}.library-grid .watch-label{font-size:0.875rem}.library-grid .video-card-copy{padding-top:15px}.library-grid .duration{font-size:0.75rem;bottom:10px;right:10px}.article-header h1{font-size:1.9375rem}.article-header>.eyebrow{font-size:0.75rem;letter-spacing:.065em}.article-description{font-size:1.0rem;line-height:1.7;margin-top:16px}.article-meta{gap:9px;font-size:0.75rem;margin-top:17px}.article-meta .status{font-size:0.8125rem}.video-help{font-size:0.75rem;gap:8px;padding-bottom:20px}.video-help span:first-child{gap:5px;white-space:nowrap}.video-help span:last-child{text-align:right}.transcript summary{font-size:0.875rem;padding:16px}.transcript-content{padding:0 19px 22px}.transcript-section h3,.transcript-section p{font-size:0.9375rem}.example-note{font-size:0.75rem}.guide-pagination{gap:20px;margin-top:28px}.guide-pagination span{font-size:0.75rem}.guide-pagination strong{font-size:0.8125rem}.placeholder-panel{padding:32px 20px}.placeholder-panel h2{font-size:1.375rem}.placeholder-panel p{font-size:0.9375rem}.placeholder-panel .primary-link{font-size:0.8125rem;padding-left:15px;padding-right:15px}.placeholder-panel>.subtle-link{font-size:0.8125rem}.related-videos .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related-videos .video-card:last-child{grid-column:1/-1;max-width:calc(50% - 7px)}.chapter-links a{font-size:0.875rem;padding:10px 12px}.menu-open{overflow:hidden}.menu-open main{visibility:hidden}}
@media(max-width:360px){.brand{gap:8px}.brand>span:last-child{font-size:0.875rem}.brand img{width:43px}.site-header{padding-left:15px;padding-right:15px}.menu-toggle{font-size:0.75rem}main{padding-left:18px;padding-right:18px}.role-card .text-link{font-size:0.75rem}.role-card{padding:17px 17px}.role-intro h1{font-size:1.625rem}.video-help{flex-wrap:wrap}.video-help span:last-child{text-align:left}}