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img{display:block;max-width:none;height:auto}.viewer-caption{padding:10px 20px;background:var(--md-surface-container);border-top:1px solid var(--md-outline-variant);font-size:var(--md-body-small);color:var(--md-on-surface-variant);line-height:1.5;max-height:80px;overflow-y:auto;flex-shrink:0}.viewer-caption strong{color:var(--md-on-surface);font-weight:500}.viewer-nav-btn{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;z-index:10}.viewer-nav-btn#viewerPrev{left:12px}.viewer-nav-btn#viewerNext{right:12px}.well-diagram{display:block;width:100%;height:auto}@media (max-width:640px){.viewer-toolbar{padding:6px 10px;gap:6px}.viewer-title{font-size:var(--md-label-large)}.viewer-toolbar-center{gap:2px}.viewer-btn{width:32px;height:32px}.viewer-caption{font-size:var(--md-label-medium);padding:8px 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iframe{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:var(--md-shape-sm)}.video-description{font-size:var(--md-body-medium);color:var(--md-on-surface-variant);margin:0 0 12px;line-height:1.5}.video-link{display:inline-flex;align-items:center;gap:4px;font-size:var(--md-label-medium);font-weight:500;color:var(--md-primary);text-decoration:none;padding:6px 12px;border-radius:var(--md-shape-full);transition:background var(--md-duration-short2) var(--md-easing-standard)}.video-link:hover{background:color-mix(in srgb,var(--md-primary) 8%,transparent);color:var(--md-on-primary-container)}[data-theme="dark"] .video-card{background:var(--md-surface-container);border-color:var(--md-outline-variant)}[data-theme="dark"] .video-card:hover{box-shadow:var(--md-elevation-2)}[data-theme="dark"] .video-embed{background:#1a1a1a}.table-of-contents{background:var(--md-surface-container-lowest);border:1px solid var(--md-outline-variant);border-radius:var(--md-shape-md);padding:16px 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print{.table-of-contents{display:none}}