/* scoreBoard7 site — video tutorial pages and the YouTube playlist card */
.yt-card{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:36px;align-items:center;margin-top:36px}
.yt-card.compact{grid-template-columns:minmax(0,1fr) minmax(0,1fr);max-width:980px}
.yt-poster{position:relative;display:block;aspect-ratio:16/9;background:var(--bezel);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.yt-poster img{display:block;width:100%;height:100%;object-fit:cover}
.yt-poster iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt-icon{position:absolute;left:50%;top:50%;width:76px;margin:-27px 0 0 -38px;transition:transform .15s}
.yt-icon svg{display:block;width:100%;height:auto}
.yt-poster:hover .yt-icon,.yt-poster:focus-visible .yt-icon{transform:scale(1.1)}
.yt-kicker{font-size:15px;font-weight:600;color:var(--ink-3)}
.yt-body h3{font-size:clamp(24px,2.4vw,30px);line-height:1.15;margin:4px 0 6px}
.yt-meta{color:var(--ink-2);margin-bottom:14px}
.yt-body .check-list{margin-bottom:18px}
@media (max-width:760px){.yt-card,.yt-card.compact{grid-template-columns:1fr;gap:20px}}

.tut-player{position:relative;max-width:960px;aspect-ratio:16/9;background:var(--bezel);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);margin-top:18px}
.tut-player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.tut-now{max-width:960px;margin-top:14px;font-weight:600;color:var(--ink)}

.tut-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-top:36px}
.tut-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;scroll-margin-top:96px}
.tut-card:target{border-color:var(--board);box-shadow:var(--shadow)}
.tut-thumb{position:relative;display:block;background:var(--bezel)}
.tut-thumb img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.tut-thumb::after{content:'';position:absolute;left:50%;top:50%;margin:-14px 0 0 -9px;border-style:solid;border-width:14px 0 14px 22px;border-color:transparent transparent transparent #fff;filter:drop-shadow(0 1px 3px rgba(0,0,0,.6))}
.tut-time{position:absolute;right:8px;bottom:8px;padding:1px 6px;border-radius:4px;background:rgba(14,20,17,.85);color:#fff;font-size:14px}
.tut-card h3{font-size:22px;line-height:1.2;margin:16px 18px 8px}
.tut-card h3 span{color:var(--board)}
.tut-card p{font-size:16px;line-height:1.55;color:var(--ink-2);margin:0 18px 14px}
.tut-chapters{margin:auto 18px 16px;font-size:15px}
.tut-chapters summary{cursor:pointer;font-weight:600;color:var(--ink)}
.tut-chapters ol{list-style:none;margin-top:8px}
.tut-chapters li{padding:3px 0}
.tut-chapters time{display:inline-block;min-width:44px;color:var(--ink-3);font-variant-numeric:tabular-nums}