.presentation-carousel{position:relative;width:100%;background:var(--md-graphite);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.presentation-carousel.fullscreen{border-radius:0;height:100vh;display:flex;flex-direction:column}.presentation-carousel.maximized{position:fixed;inset:0;width:100vw;height:100vh;border-radius:0;z-index:9999;display:flex;flex-direction:column}.carousel-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background:#000c;backdrop-filter:blur(10px)}.carousel-title{display:flex;align-items:center;gap:1rem}.carousel-title h3{margin:0;color:#fff;font-size:1.125rem;font-weight:600}.slide-counter{color:#ffffffb3;font-size:.875rem;font-family:var(--font-family-mono)}.carousel-controls{display:flex;gap:.5rem}.control-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);color:#fff;cursor:pointer;transition:all .2s}.control-btn:hover{background:#fff3;border-color:#ffffff4d}.control-btn.close-btn:hover{background:var(--color-error);border-color:var(--color-error)}.carousel-main{position:relative;display:flex;align-items:center;justify-content:center;min-height:400px;padding:1rem}.fullscreen .carousel-main,.maximized .carousel-main{flex:1;min-height:0}.slide-container{position:relative;max-width:100%;max-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.slide-image{max-width:100%;max-height:60vh;object-fit:contain;border-radius:var(--radius-md);box-shadow:0 10px 40px #0000004d}.fullscreen .slide-image,.maximized .slide-image{max-height:calc(100vh - 200px)}.slide-caption{margin-top:1rem;padding:.75rem 1.5rem;background:#0009;border-radius:var(--radius-md);color:#fff;font-size:.95rem;text-align:center;max-width:80%}.nav-btn{position:absolute;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:56px;height:56px;background:#00000080;border:2px solid rgba(255,255,255,.2);border-radius:50%;color:#fff;cursor:pointer;transition:all .2s;z-index:10}.nav-btn:hover{background:#000c;border-color:var(--md-sunbeam);color:var(--md-sunbeam);transform:translateY(-50%) scale(1.1)}.nav-prev{left:1rem}.nav-next{right:1rem}.carousel-thumbnails{display:flex;gap:.5rem;padding:1rem;background:#000c;overflow-x:auto;justify-content:center;flex-wrap:wrap}.thumbnail{flex-shrink:0;width:80px;height:50px;padding:0;border:2px solid transparent;border-radius:var(--radius-sm);overflow:hidden;cursor:pointer;transition:all .2s;opacity:.6}.thumbnail:hover{opacity:.9;border-color:#ffffff4d}.thumbnail.active{opacity:1;border-color:var(--md-sunbeam);box-shadow:0 0 10px #ffde004d}.thumbnail img{width:100%;height:100%;object-fit:cover}.keyboard-hints{display:flex;justify-content:center;gap:2rem;padding:.75rem 1rem;background:#0009;color:#ffffff80;font-size:.75rem}.keyboard-hints span{display:flex;align-items:center;gap:.5rem}@media(max-width:768px){.carousel-header{padding:.75rem 1rem;flex-wrap:wrap;gap:.5rem}.carousel-title h3{font-size:1rem}.carousel-main{min-height:300px}.nav-btn{width:44px;height:44px}.nav-prev{left:.5rem}.nav-next{right:.5rem}.thumbnail{width:60px;height:38px}.keyboard-hints{display:none}.slide-caption{font-size:.85rem;padding:.5rem 1rem}}.presentation-card{display:block;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:all .3s;text-decoration:none}.presentation-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.presentation-card-image{position:relative;aspect-ratio:16 / 9;overflow:hidden}.presentation-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.presentation-card:hover .presentation-card-image img{transform:scale(1.05)}.presentation-card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.6),transparent);opacity:0;transition:opacity .3s;display:flex;align-items:center;justify-content:center}.presentation-card:hover .presentation-card-overlay{opacity:1}.play-icon{width:64px;height:64px;background:var(--md-sunbeam);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--md-graphite);transform:scale(.8);transition:transform .3s}.presentation-card:hover .play-icon{transform:scale(1)}.presentation-card-content{padding:1.5rem}.presentation-card-title{font-size:1.25rem;font-weight:600;color:var(--md-ink);margin-bottom:.5rem}.presentation-card-description{color:var(--md-slate);font-size:.95rem;margin-bottom:1rem;line-height:1.5}.presentation-card-meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--md-slate)}.presentation-card-slides{display:flex;align-items:center;gap:.5rem}.presentation-card-date{color:var(--md-slate)}