.ab-shell{max-width:1280px;margin:auto;padding:26px 24px 48px;color:#243247}.ab-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:20px}.ab-heading h1{font-size:32px;line-height:1.2;margin:0 0 10px}.ab-heading p{margin:0;max-width:860px;color:#536982;line-height:1.6}.ab-heading>a{white-space:nowrap}.ab-meta,.ab-small{font-size:14px;color:#536982}.ab-reading,.ab-contact,.ab-related{margin-top:22px}.ab-section,.ab-contact{background:white;border:1px solid #d9e3ed;border-radius:10px;padding:22px;margin-bottom:16px}.ab-section h2,.ab-contact h2,.ab-related h2{font-size:21px;margin:0 0 12px}.ab-reading p,.ab-reading li,.ab-contact p{line-height:1.7;max-width:940px}.ab-reading p:first-child{margin-top:0}.ab-reading li{margin:8px 0}.ab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.ab-card{display:block;background:#fff;border:1px solid #d9e3ed;border-radius:10px;padding:20px;text-decoration:none;color:#243247}.ab-card:hover{border-color:#0071ba;background:#f5faff}.ab-card strong{color:#0071ba;font-size:18px}.ab-card strong span{float:right}.ab-card p{font-size:15px;line-height:1.6;color:#536982;margin-bottom:0}.ab-hub-tabs{display:flex;gap:0;overflow-x:auto;background:#eaf3f9;border-radius:10px 10px 0 0;margin-bottom:0}.ab-hub-tabs button{border:0;background:transparent;padding:16px 22px;white-space:nowrap;color:#0069a9;font:inherit;font-weight:600;cursor:pointer}.ab-hub-tabs button[aria-pressed=true]{background:white;color:#243247}.ab-tab-pane{padding:20px;border:1px solid #d9e3ed;border-top:0;background:white;border-radius:0 0 10px 10px}.ab-expander{background:white;border:1px solid #d9e3ed;border-radius:10px;margin-bottom:12px}.ab-expander summary{font-size:18px;font-weight:600;padding:18px 20px;cursor:pointer}.ab-expander>div{padding:0 20px 16px}.ab-tools{display:flex;gap:12px;margin-bottom:12px}.ab-tools button{padding:9px 14px;border:1px solid #c5d7e5;border-radius:10px;background:white;color:#0071ba;font:inherit;cursor:pointer}.ab-carousel{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px}.ab-carousel .ab-card{min-width:280px;flex:1 0 31%;scroll-snap-align:start}.ab-menu.vx-panel{padding:0!important;display:grid!important;grid-template-columns:220px minmax(0,1fr);gap:0!important}.ab-menu-tabs{background:#f0f6fa;padding:14px}.ab-menu-tabs button{display:block;width:100%;padding:14px 16px;text-align:left;border:0;background:transparent;color:#243247;font:inherit;font-weight:600;cursor:pointer;border-radius:10px}.ab-menu-tabs button[aria-pressed=true]{background:white;color:#0071ba;box-shadow:0 1px 4px #173a6010}.ab-menu-content{padding:24px}.ab-menu-pane{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.ab-menu-pane h3{font-size:15px!important;color:#536982!important;margin:0 0 12px!important}.ab-menu-pane a{display:block;padding:9px 0!important;font-size:16px!important}.ab-menu-bottom{grid-column:1/-1;display:flex;justify-content:space-between;border-top:1px solid #e1e8ef;padding:12px 24px}.ab-legacy{display:flex;gap:20px;margin-top:20px}[hidden]{display:none!important}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #0071ba;outline-offset:3px}
@media(max-width:800px){.ab-shell{padding:20px 16px 32px}.ab-heading{display:block}.ab-heading h1{font-size:27px}.ab-heading>a{display:inline-block;margin-top:12px}.ab-grid{grid-template-columns:1fr 1fr}.ab-menu.vx-panel{grid-template-columns:1fr}.ab-menu-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px}.ab-menu-content{padding:16px}.ab-menu-pane{grid-template-columns:1fr;gap:16px}.ab-menu-pane section{border-bottom:1px solid #e1e8ef;padding-bottom:10px}.ab-menu-bottom{padding:12px 16px;gap:12px}.ab-section,.ab-contact{padding:18px}.ab-hub-tabs button{padding:14px 16px}}
@media(max-width:520px){.ab-grid{grid-template-columns:1fr}.ab-tab-pane{padding:14px}.ab-card{padding:18px}.ab-expander summary{font-size:17px}.ab-carousel .ab-card{min-width:85%;flex-basis:85%}.ab-hub-tabs{margin-right:0}.ab-menu-bottom{font-size:14px}}
@media print{.vx-header,.vx-footer,.vx-mobile-dock,.ab-tools,.ab-related,.ab-heading>a,.ab-contact{display:none!important}.ab-shell{padding:0;max-width:none}.ab-expander{break-inside:avoid;border:0}.ab-expander>div{display:block!important}.ab-heading h1{font-size:26px}}

.ab-related-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.ab-related-heading .ab-tools{margin-bottom:0}

/* One compact title/action row across the About pages. */
.ab-heading{align-items:center;flex-wrap:wrap;gap:12px 24px;margin-bottom:16px}.ab-heading h1{margin:0;min-width:0;flex:1 1 260px}.ab-heading-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:10px 16px;margin-left:auto}.ab-heading-actions:empty{display:none}.ab-heading-actions button{padding:9px 14px;min-height:44px;border:1px solid #c5d7e5;border-radius:10px;background:white;color:#0071ba;font:inherit;cursor:pointer}.ab-heading-actions a{white-space:nowrap;display:inline-flex;align-items:center;min-height:44px}.ab-meta{margin:0 0 16px}.ab-reading{margin-top:16px}
@media(max-width:800px){.ab-heading{display:flex}.ab-heading h1{flex-basis:240px}.ab-heading-actions{gap:8px 12px}}
@media(max-width:520px){.ab-heading h1{flex-basis:100%}.ab-heading-actions{width:100%;justify-content:flex-start;margin-left:0}.ab-heading-actions button{font-size:14px}.ab-heading-actions a{font-size:14px}}
@media print{.ab-heading-actions{display:none!important}}
/* Match the Skill Lab category selector and three-column submenu. */
.ab-menu.vx-panel{grid-template-columns:minmax(210px,24%) minmax(0,1fr);max-height:calc(100dvh - 95px)}.ab-menu-tabs{display:flex;flex-direction:column;gap:5px;padding:14px 12px;background:#f3f6fa;border-right:1px solid #e0e6ed}.ab-menu-tabs button{min-height:38px;margin:0;padding:9px 11px;border-radius:6px;color:#40556b;font-size:12px;font-weight:500;line-height:1.45;letter-spacing:0;box-shadow:none}.ab-menu-tabs button[aria-pressed=true]{background:#0071ba;color:white;box-shadow:none}.ab-menu-content{padding:18px 20px}.ab-menu-pane{gap:20px}.ab-menu-pane h3{font-size:12px!important;line-height:1.4;color:#243449!important;margin:0 0 7px!important;font-weight:650}.ab-menu-pane a{display:flex;align-items:flex-start;min-height:25px;padding:4px 3px!important;margin:0;font-size:12px!important;line-height:1.45;color:#40556b;border-radius:4px;text-decoration:none;white-space:normal}.ab-menu-pane a:hover{color:#0071ba;background:#eef6fc}.ab-menu-bottom{padding:12px 20px}
@media(max-width:760px){.ab-menu.vx-panel{grid-template-columns:1fr}.ab-menu-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;padding:10px;border-right:0;border-bottom:1px solid #e0e6ed}.ab-menu-tabs button{font-size:11px;min-height:40px;padding:8px}.ab-menu-content{padding:14px}.ab-menu-pane{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.ab-menu-pane section{border:0;padding:0}.ab-menu-bottom{padding:10px 14px}}
@media(max-width:430px){.ab-menu-pane{grid-template-columns:1fr}.ab-menu-pane a{min-height:32px}}