/* Scoped video hub components; no global header or existing page overrides. */
.vt-scope{--page:#f5f6f8;--surface:#fff;--ink:#20232b;--muted:#5a6270;--line:#dce0e6;--accent:#af1767;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}.vt-scope *{box-sizing:border-box}.vt-scope a{color:var(--accent);text-decoration:none}.vt-scope a:hover{text-decoration:underline}.vt-scope :is(a,button,summary,video):focus-visible{outline:3px solid var(--accent);outline-offset:4px}.vt-header{display:flex;gap:24px;align-items:center;justify-content:space-between;padding:18px max(20px,calc((100% - 1180px)/2));background:#fff;border-bottom:1px solid var(--line)}.vt-header nav{display:flex;gap:18px;flex-wrap:wrap}.vt-brand{font-weight:900;font-size:24px}.vt-header [aria-current=true]{font-weight:800;text-decoration:underline}.vt-main{max-width:1180px;margin:auto;padding:46px 24px 64px}.vt-main h1{font-size:clamp(32px,5vw,56px);line-height:1.12;letter-spacing:-.04em;max-width:920px;margin:16px 0 22px}.vt-main h2{font-size:24px;line-height:1.25}.vt-lead{max-width:720px;font-size:19px;color:var(--muted)}.vt-kicker{color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.06em}.vt-games{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0}.vt-games a{padding:20px 24px;display:flex;gap:26px;background:var(--surface);border:1px solid var(--line);border-radius:16px}.vt-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.vt-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--surface);min-width:0}.vt-card>a{display:block;color:var(--ink);height:100%;padding:0 22px 24px}.vt-card img{display:block;width:calc(100% + 44px);margin:0 -22px 20px;height:300px;object-fit:contain;background:#e9ecf0}.vt-card h2,.vt-card h3{font-size:23px;line-height:1.25;margin:10px 0;color:var(--ink)}.vt-card p{color:var(--muted)}.vt-cta{color:var(--accent);font-weight:700}.vt-lesson{display:grid;grid-template-columns:minmax(0,390px) minmax(0,1fr);gap:40px;margin-top:32px}.vt-lesson video{display:block;width:100%;height:auto;max-height:760px;background:#111;border-radius:18px}.vt-lesson section{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:18px;align-self:start}.vt-lesson li{margin:0 0 16px}.vt-lesson details{border-top:1px solid var(--line);padding-top:18px;font-size:14px;overflow-wrap:anywhere}.vt-lesson summary{cursor:pointer;font-weight:700}.vt-footer{max-width:1180px;margin:auto;padding:24px;border-top:1px solid var(--line)}.vt-shelf{max-width:1180px;margin:32px auto;padding:24px;background:#fff;border:1px solid var(--line);border-radius:22px}.vt-shelf-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.vt-shelf-head h2{font-size:clamp(25px,3vw,34px);line-height:1.15;letter-spacing:-.03em;margin:0 0 8px}.vt-shelf-head p{margin:0;color:var(--muted)}.vt-shelf-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}.vt-shelf-actions button{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:50%;width:44px;height:44px;cursor:pointer;font-size:22px}.vt-shelf-actions button:disabled{opacity:.35;cursor:default}.vt-track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 48px)/3);gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:4px;padding:4px 4px 16px;overscroll-behavior-inline:contain}.vt-track .vt-card{scroll-snap-align:start}.vt-track .vt-card img{height:280px}.vt-track::-webkit-scrollbar{height:6px}.vt-track::-webkit-scrollbar-thumb{background:#c7ccd4;border-radius:4px}.vt-track:focus-visible{outline:3px solid var(--accent);outline-offset:4px}@media(max-width:700px){.vt-header{gap:12px;padding:15px 18px;flex-wrap:wrap}.vt-header nav{gap:12px;font-size:14px}.vt-main{padding:28px 18px 40px}.vt-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.vt-card>a{padding:0 14px 18px}.vt-card img{width:calc(100% + 28px);margin:0 -14px 15px;height:240px}.vt-card h2,.vt-card h3{font-size:19px}.vt-card p{font-size:14px}.vt-lesson{grid-template-columns:1fr;gap:22px}.vt-lesson video{max-height:660px}.vt-lesson section{padding:22px}.vt-games a{padding:14px 18px}.vt-shelf{margin:22px 12px;padding:18px}.vt-shelf-head{align-items:start;flex-direction:column}.vt-track{grid-auto-columns:78%;gap:16px}.vt-track .vt-card img{height:285px}.vt-shelf-actions{align-self:flex-end}.vt-shelf-actions button{display:none}}@media(max-width:390px){.vt-grid{grid-template-columns:1fr}.vt-card img{height:320px}}@media(prefers-reduced-motion:reduce){.vt-track{scroll-behavior:auto!important}}