@keyframes skel-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.card-preview .preview-slide{object-fit:contain;border:1px solid var(--border);background:linear-gradient(90deg,#eef0f3 0%,#e3e6ea 50%,#eef0f3 100%) 0 0/200% 100%;border-radius:.2rem;width:76%;height:78%;animation:1.4s linear infinite skel-shimmer;display:block;position:absolute;top:10%;left:12%;box-shadow:0 2px 8px #0000001a}.card-preview .preview-slide.preview-loaded{background:#fff;animation:none}.card-preview .preview-slide.preview-portrait{object-fit:fill;border-bottom:none;border-radius:.2rem .2rem 0 0;width:58%;height:auto;max-height:none;top:8%;left:50%;transform:translate(-50%)}.card-preview:has(.preview-thumb){background:radial-gradient(#2a3142 0%,#11151c 100%)}.preview-doc{border:1px solid var(--border);text-align:left;background:#fff;border-bottom:none;border-radius:.2rem .2rem 0 0;padding:.55rem .65rem;position:absolute;inset:8% 10% 0;overflow:hidden;box-shadow:0 2px 8px #00000014}.preview-doc-text{color:var(--foreground);-webkit-line-clamp:8;-webkit-box-orient:vertical;font-size:.62rem;line-height:1.5;display:-webkit-box;overflow:hidden}.preview-doc-text mark{background:var(--brand-accent-tint);color:var(--brand-accent);border-radius:.18rem;padding:.02rem .18rem}.preview-doc-text .preview-from{letter-spacing:.06em;color:var(--brand-accent);text-transform:uppercase;margin-bottom:.3rem;font-size:.55rem;font-weight:700;display:block}.preview-doc-text.preview-md{max-height:100%;display:block}.preview-doc-text.preview-md h1,.preview-doc-text.preview-md h2,.preview-doc-text.preview-md h3,.preview-doc-text.preview-md h4{margin:.25rem 0 .15rem;font-size:.72rem;font-weight:700;line-height:1.25}.preview-doc-text.preview-md p{margin:.2rem 0}.preview-doc-text.preview-md ul,.preview-doc-text.preview-md ol{margin:.2rem 0;padding-left:1rem}.preview-doc-text.preview-md li{margin:.05rem 0}.preview-doc-text.preview-md a{color:var(--brand-accent)}.preview-doc-text.preview-md code{background:#f4f6fa;border-radius:.18rem;padding:.05rem .2rem;font-size:.92em}.preview-doc-text.preview-md hr{border:none;border-top:1px solid var(--border);margin:.3rem 0}.preview-doc-text.preview-md table{border-collapse:collapse}.preview-doc-text.preview-md th,.preview-doc-text.preview-md td{border:1px solid var(--border);text-align:left;padding:.05rem .2rem}.preview-doc-text.preview-md img{display:none}.preview-video{background:radial-gradient(#2a3142 0%,#11151c 100%)}.preview-video-scrim{background:linear-gradient(#00000040 0%,#000000b3 100%)}.preview-video-text{z-index:1;color:#fff;text-shadow:0 1px 2px #00000080;-webkit-line-clamp:4;-webkit-box-orient:vertical;font-size:.66rem;line-height:1.45;display:-webkit-box;position:relative;overflow:hidden}.preview-video-text mark{color:#fff;background:#ffffff2e;border-radius:.18rem;padding:.02rem .18rem}.preview-video-text .preview-from{letter-spacing:.06em;color:#fff;text-transform:uppercase;opacity:.85;margin-bottom:.25rem;font-size:.58rem;font-weight:700;display:block}.preview-audio{background:radial-gradient(#34283f 0%,#1a1024 100%)}.preview-audio-text{z-index:1;color:#fff;text-shadow:0 1px 2px #00000080;-webkit-line-clamp:4;-webkit-box-orient:vertical;font-size:.66rem;line-height:1.45;display:-webkit-box;position:relative;overflow:hidden}.preview-audio-text mark{color:#fff;background:#ffffff2e;border-radius:.18rem;padding:.02rem .18rem}.preview-audio-text .preview-from{letter-spacing:.06em;color:#fff;text-transform:uppercase;opacity:.85;margin-bottom:.25rem;font-size:.58rem;font-weight:700;display:block}.topic-link.active{background:var(--brand-accent);color:#fff;border-left-color:var(--brand-accent);font-weight:500}.topic-link.active .topic-count{opacity:.85}