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78px);padding:24px;border-radius:14px;background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid var(--frame-border-color);box-shadow:var(--frame-shadow);margin:12px}.document-presentation-slide h3{margin:0 0 18px;font-size:clamp(1.6rem,2.5vw,2.4rem)}.document-presentation-slide p{margin:0 0 .9rem;font-family:Inter,Segoe UI,sans-serif;color:var(--office-slide-text);font-size:1rem}.document-pdf-viewport{height:100%;min-height:360px;display:flex;justify-content:flex-start;align-items:flex-start;overflow:auto;scrollbar-gutter:stable;padding:0}.document-pdf-page-stack{display:flex;flex-direction:column;gap:14px;width:100%;align-items:stretch}.document-pdf-page-shell{position:relative;width:100%;overflow:hidden;border-radius:4px}.document-pdf-canvas{display:block;width:100%;height:100%;border-radius:4px;box-shadow:var(--frame-shadow)}@keyframes viewer-spin{to{transform:rotate(360deg)}}.viewer-pulse{width:72px;height:72px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--accent) 22%,transparent),transparent 72%);position:relative}.viewer-pulse:after{content:"";position:absolute;top:-10px;right:-10px;bottom:-10px;left:-10px;border-radius:inherit;border:1px solid color-mix(in srgb,var(--accent) 18%,var(--border));animation:viewer-pulse 1.8s ease-out infinite}.viewer-callout{display:flex;flex-direction:column;gap:4px;padding:14px 16px;border-radius:18px;background:var(--accent-soft);border:1px solid var(--border)}.viewer-actions{display:flex;gap:12px;flex-wrap:wrap}.viewer-callout strong,.viewer-footer span,.viewer-message-panel strong{font-family:Inter,Segoe UI,sans-serif;font-size:.98rem;color:var(--text);word-break:break-word}.viewer-footer{display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;padding:12px 16px 16px;border-top:1px solid var(--border)}.viewer-actions-centered{justify-content:center}@keyframes viewer-pulse{0%{opacity:.8;transform:scale(.94)}to{opacity:0;transform:scale(1.22)}}@media(max-width:960px){.viewer-shell{padding:0}}@media(max-width:640px){.viewer-shell,.document-text-shell,.document-markdown,.document-office-shell,.document-pdf-shell,.document-media-shell{padding:0}.document-markdown-prose>:is(h1,h2,h3,h4,h5,h6,p,ul,ol,dl,blockquote,hr){max-width:100%}.viewer-footer{flex-direction:column;align-items:flex-start}}