.youtube-section{flex-direction:column;gap:30px;display:flex}.subsection-title{color:var(--text-dark);margin-bottom:15px;font-size:1.2rem}.video-wrapper{height:0;box-shadow:var(--card-shadow);background:#000;border-radius:12px;padding-bottom:56.25%;position:relative;overflow:hidden}.video-wrapper iframe{width:100%;height:100%;position:absolute;top:0;left:0}.youtube-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;display:grid}.yt-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;flex-direction:column;transition:transform .2s,box-shadow .2s;display:flex;overflow:hidden;box-shadow:0 4px 15px #0000000d}.yt-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #0000001a}.yt-thumbnail{aspect-ratio:16/9;background-color:#eee;width:100%;position:relative;overflow:hidden}.yt-thumbnail img{object-fit:cover;width:100%;height:100%;transition:transform .3s}.yt-card:hover .yt-thumbnail img{transform:scale(1.05)}.yt-play-btn{color:#fff;opacity:0;background-color:#000000b3;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;padding-left:4px;font-size:20px;transition:opacity .2s;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.yt-card:hover .yt-play-btn{opacity:1}.yt-info{padding:12px 15px}.yt-title{color:var(--text-dark);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:8px;font-size:.95rem;font-weight:600;line-height:1.4;display:-webkit-box;overflow:hidden}.yt-date{color:var(--text-muted);font-size:.8rem}.loading-spinner{text-align:center;color:var(--text-muted);padding:40px}