.talks{margin:44px 40px 80px;outline:none}
.talk{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,1fr);grid-template-rows:auto auto 1fr;column-gap:44px;row-gap:0;align-items:start;margin-bottom:64px}
.talk-heading{grid-column:1/-1;margin-bottom:25px}
.talk-heading h2{font-size:46px;line-height:1.2;letter-spacing:-.025em;font-weight:700;margin:0 0 12px;overflow-wrap:anywhere}
.talk-meta{display:flex;flex-wrap:wrap;gap:0 9px;color:var(--muted);font-size:20px;line-height:1.6;margin:0}
.talk-player-column{grid-column:1;grid-row:2;min-width:0}
.talk-player{width:100%;aspect-ratio:16/9;min-height:200px;background:#161615;position:relative;overflow:hidden}
.player-mount,.talk-player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-cover{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#161615;color:#fff}
.video-cover img{width:100%;height:100%;object-fit:cover;opacity:.85}
.video-cover-label{position:absolute;left:20px;bottom:20px;font-size:16px;padding:10px 16px;background:#161615}
.talk-player[data-ready] .video-cover{display:none}
.player-external{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:10px 0 0;font-size:13px;line-height:1.5;color:var(--muted)}
.player-external a{text-decoration:underline;text-underline-offset:3px;padding:4px 0}
.player-retry{border:0;padding:6px 0;background:none;color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.player-notice{font-size:14px;line-height:1.5;margin-top:12px}
.talk-chapters{grid-column:2;grid-row:2/4;min-width:0}
.talk-chapters h3{font-size:27px;line-height:1.3;font-weight:700;letter-spacing:-.025em;margin:0 0 24px}
.talk-chapters ol{list-style:none;margin:0;padding:0}
.chapter{display:grid;grid-template-columns:76px minmax(0,1fr);gap:16px;align-items:start;padding:8px 12px;min-height:44px;font-size:20px;line-height:1.45;overflow-wrap:anywhere}
.chapter-time{font-variant-numeric:tabular-nums;white-space:nowrap}
.chapter[aria-current="true"]{background:var(--surface);font-weight:700}
.chapter:active{background:var(--surface)}
@media(hover:hover) and (pointer:fine){.chapter:hover{background:var(--hover)}.player-external a:hover{color:var(--ink)}}
.talk-description{grid-column:1;grid-row:3;font-size:18px;line-height:1.55;overflow-wrap:anywhere;margin-top:14px}
.talk-description p{margin:0 0 12px}
.talk-description a{text-decoration:underline;text-underline-offset:3px}
.talk-description img{max-width:100%;height:auto}
.talk-description pre{overflow:auto}
.talk-description .talk-demo{font-size:13px;color:var(--muted);margin:12px 0 0}
.talk-no-chapters{grid-template-columns:minmax(0,1fr)}
.talk-no-chapters .talk-player-column,.talk-no-chapters .talk-description{max-width:1000px;width:100%}
.talks-empty{font-size:22px;margin:80px 0}
.talks-noscript{font-size:16px;line-height:1.5}
@media(min-width:1800px){.talks{max-width:1720px;margin-inline:auto;padding-inline:40px}.talk-heading h2{font-size:48px}}
@media(max-width:1100px){.talks{margin:36px 24px 64px}.talk{grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);column-gap:28px}.talk-heading h2{font-size:36px}.talk-meta{font-size:17px}.talk-chapters h3{font-size:21px}.chapter{font-size:16px;grid-template-columns:58px minmax(0,1fr);gap:10px;padding:8px 8px}}
@media(max-width:760px){
 .talks{margin:32px 16px 56px}.talk{display:flex;flex-direction:column;gap:0;margin-bottom:64px}.talk>*{width:100%}
 .talk-heading{margin-bottom:24px}.talk-heading h2{font-size:28px;line-height:1.2;margin-bottom:16px}.talk-meta{font-size:14px;line-height:1.6;column-gap:6px}
 .talk-player-column{order:1}.talk-chapters{order:2;margin-top:28px}.talk-description{order:3;margin-top:26px;font-size:16px;line-height:1.6}
 .talk-chapters h3{font-size:21px;margin-bottom:18px}.chapter{font-size:16px;grid-template-columns:62px minmax(0,1fr);padding:8px 8px;gap:12px;min-height:44px}
 .talk-description .talk-demo{font-size:12px}.player-external{font-size:12px}.video-cover-label{font-size:14px;left:12px;bottom:12px}
}

.player-sources{display:flex;gap:4px;flex-wrap:wrap;margin:0 0 12px}
.player-sources[hidden]{display:none}
.player-sources button{min-height:44px;padding:9px 16px;border:1px solid transparent;background:transparent;color:var(--muted);font:inherit;font-size:14px;cursor:pointer}
.player-sources button[aria-pressed="true"]{background:var(--surface);border-color:var(--muted);color:var(--ink)}
.player-sources button:focus-visible,.player-retry:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.player-sources button:active{transform:scale(.97)}
@media(hover:hover) and (pointer:fine){.player-sources button:hover{color:var(--ink);background:var(--hover)}}
.talk-player video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#161615}