:root { --uva-ui-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; }
html.uva-lightbox-open { overflow: hidden; }
.uva-flipbook-viewer, .uva-flipbook-viewer *, .uva-flipbook-lightbox, .uva-flipbook-lightbox * { box-sizing: border-box; }
.uva-flipbook-viewer { width: 100%; min-height: 420px; overflow: hidden; border-radius: 14px; background: var(--uva-bg, #f8fafc); color: var(--uva-text, #111827); font-family: var(--uva-ui-font); line-height: 1.4; isolation: isolate; box-shadow: 0 18px 50px rgba(15, 23, 42, .11); border: 1px solid rgba(15, 23, 42, .08); }
.uva-viewer-shell { display: flex; flex-direction: column; width: 100%; height: 100%; min-height: inherit; background: var(--uva-bg, #f8fafc); }
.uva-viewer-toolbar { position: relative; z-index: 10; display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 16px; min-height: 64px; padding: 12px 18px; background: var(--uva-toolbar-bg, #fff); border-bottom: 1px solid rgba(17, 24, 39, .075); }
.uva-viewer-title { min-width: 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--uva-text, #111827); font-size: 14px; font-weight: 700; }
.uva-viewer-spacer { min-width: 0; }
.uva-viewer-controls { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-width: 0; padding: 6px; border: 1px solid rgba(17, 24, 39, .09); border-radius: 999px; background: var(--uva-toolbar-bg, #fff); box-shadow: 0 10px 28px rgba(15, 23, 42, .10); }
.uva-control-btn, .uva-viewer-controls .uva-control-btn, .uva-viewer-controls button, .uva-viewer-controls a { appearance: none; -webkit-appearance: none; display: inline-flex; align-items: center; justify-content: center; min-width: 34px; height: 34px; margin: 0; padding: 0 11px; border: 0 !important; border-radius: 999px; background: transparent; color: var(--uva-text, #111827); font-family: var(--uva-ui-font); font-size: 15px; font-weight: 700; line-height: 34px; text-decoration: none; cursor: pointer; box-shadow: none !important; transition: background-color .14s ease, color .14s ease, opacity .14s ease; }
.uva-viewer-controls .uva-control-btn:hover, .uva-viewer-controls button:hover, .uva-viewer-controls a:hover { background: var(--uva-btn-bg, #111827); color: var(--uva-btn-text, #fff); opacity: 1; text-decoration: none; }
.uva-viewer-controls .uva-control-btn:disabled, .uva-viewer-controls button:disabled, .uva-viewer-controls input:disabled { cursor: wait; opacity: .45; }
.uva-viewer-controls .uva-download { width: auto; padding-inline: 14px; font-size: 13px; font-weight: 700; }
.uva-viewer-controls input.uva-page-input { width: 58px; height: 34px; margin: 0; padding: 0 8px; border: 1px solid rgba(17, 24, 39, .12); border-radius: 999px; background: rgba(255,255,255,.72); color: var(--uva-text, #111827); font: 700 14px/34px var(--uva-ui-font); text-align: center; box-shadow: inset 0 1px 2px rgba(15, 23, 42, .05); }
.uva-page-total { min-width: 42px; color: var(--uva-text, #111827); opacity: .72; font-size: 13px; font-weight: 700; white-space: nowrap; }
.uva-viewer-stage { position: relative; flex: 1; display: flex; align-items: center; justify-content: center; min-height: 0; overflow: auto; padding: clamp(18px, 4vw, 52px); perspective: 1400px; background: radial-gradient(circle at 50% 18%, rgba(255,255,255,.72) 0%, var(--uva-bg, #f8fafc) 38%, var(--uva-stage-bg, #e6ebf3) 100%); cursor: default; contain: layout paint; }
.uva-viewer-stage:before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse at center, rgba(255,255,255,0) 42%, rgba(15,23,42,.06) 100%); }
.uva-book { position: relative; z-index: 1; max-width: 100%; transform-style: preserve-3d; filter: drop-shadow(0 28px 34px rgba(15, 23, 42, .16)); }
.uva-page-shell { --uva-page-ratio: 1 / 1.414; position: relative; max-width: min(92vw, 780px); max-height: calc(100vh - 150px); aspect-ratio: var(--uva-page-ratio); transform-style: preserve-3d; }
.uva-pdf-canvas { display: block; width: auto; max-width: min(92vw, 780px); max-height: calc(100vh - 150px); height: auto; background: #fff; border-radius: 7px; box-shadow: 0 0 0 1px rgba(15, 23, 42, .08), 0 22px 56px rgba(15, 23, 42, .18); }
.uva-current-page { position: relative; z-index: 1; }
.uva-turning-page { position: absolute; inset: 0; z-index: 3; display: none; width: 100%; height: 100%; transform-origin: left center; backface-visibility: hidden; will-change: transform, opacity; pointer-events: none; }
.uva-page-shine { position: absolute; inset: 0; z-index: 4; display: none; pointer-events: none; border-radius: 7px; opacity: 0; background: linear-gradient(90deg, rgba(255,255,255,0) 10%, rgba(255,255,255,.42) 45%, rgba(15,23,42,.12) 72%, rgba(15,23,42,0) 100%); transform: translateX(-10%); will-change: transform, opacity; }
.uva-page-shell.is-turning-next .uva-turning-page { animation: uvaPageTurnNext 360ms cubic-bezier(.22,.7,.26,1) both; }
.uva-page-shell.is-turning-prev .uva-turning-page { transform-origin: right center; animation: uvaPageTurnPrev 360ms cubic-bezier(.22,.7,.26,1) both; }
.uva-page-shell.is-turning-next .uva-page-shine { animation: uvaPageShineNext 360ms cubic-bezier(.22,.7,.26,1) both; }
.uva-page-shell.is-turning-prev .uva-page-shine { animation: uvaPageShinePrev 360ms cubic-bezier(.22,.7,.26,1) both; }
.uva-viewer-loading, .uva-viewer-error { position: absolute; left: 50%; top: 50%; z-index: 8; max-width: min(86%, 440px); transform: translate(-50%, -50%); padding: 13px 18px; border-radius: 999px; background: rgba(17, 24, 39, .88); color: #fff; box-shadow: 0 18px 45px rgba(0,0,0,.22); font: 700 14px/1.35 var(--uva-ui-font); text-align: center; }
.uva-viewer-error { border-radius: 14px; background: #b42318; }
.uva-flipbook-error { padding: 12px 14px; border-left: 4px solid #d63638; background: #fff5f5; color: #5f1717; font-family: var(--uva-ui-font); }
.uva-flipbook-open { appearance: none; -webkit-appearance: none; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin: 0; padding: 0 18px; border: 1px solid rgba(17, 24, 39, .12); border-radius: 999px; background: var(--uva-btn-bg, #111827); color: var(--uva-btn-text, #fff); font: 700 14px/1 var(--uva-ui-font); text-decoration: none; cursor: pointer; box-shadow: 0 12px 28px rgba(17, 24, 39, .18); transition: box-shadow .14s ease, background-color .14s ease; }
.uva-flipbook-open:hover { color: var(--uva-btn-text, #fff); text-decoration: none; box-shadow: 0 16px 34px rgba(17, 24, 39, .22); }
.uva-flipbook-lightbox { display: none; position: fixed; z-index: 999999; inset: 0; padding: 22px; background: var(--uva-bg, rgba(248, 250, 252, .96)); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.uva-flipbook-lightbox.is-open { display: block; }
.uva-flipbook-lightbox__inner { position: relative; width: 100%; height: 100%; }
.uva-flipbook-lightbox .uva-flipbook-viewer { height: 100% !important; border-radius: 18px; }
.uva-flipbook-lightbox__close, .uva-flipbook-lightbox button.uva-flipbook-lightbox__close { appearance: none !important; -webkit-appearance: none !important; position: absolute; top: 14px; right: 14px; z-index: 40; display: flex !important; align-items: center !important; justify-content: center !important; width: 44px !important; min-width: 44px !important; max-width: 44px !important; height: 44px !important; min-height: 44px !important; max-height: 44px !important; margin: 0 !important; padding: 0 !important; border: 1px solid rgba(17, 24, 39, .10) !important; border-radius: 50% !important; background: var(--uva-btn-bg, #fff) !important; color: var(--uva-btn-text, #111827) !important; font-family: Arial, Helvetica, sans-serif !important; font-size: 24px !important; font-weight: 400 !important; line-height: 1 !important; text-align: center !important; text-indent: 0 !important; letter-spacing: 0 !important; cursor: pointer; box-shadow: 0 14px 28px rgba(15, 23, 42, .14) !important; transform: none !important; }
@keyframes uvaPageTurnNext { 0% { opacity: 1; transform: translateZ(3px) rotateY(0deg) translateX(0); } 55% { opacity: .88; transform: translateZ(18px) rotateY(-24deg) translateX(1.2%); } 100% { opacity: 0; transform: translateZ(28px) rotateY(-42deg) translateX(3.2%); } }
@keyframes uvaPageTurnPrev { 0% { opacity: 1; transform: translateZ(3px) rotateY(0deg) translateX(0); } 55% { opacity: .88; transform: translateZ(18px) rotateY(24deg) translateX(-1.2%); } 100% { opacity: 0; transform: translateZ(28px) rotateY(42deg) translateX(-3.2%); } }
@keyframes uvaPageShineNext { 0% { opacity: 0; transform: translateX(-18%); } 35% { opacity: .45; transform: translateX(0); } 100% { opacity: 0; transform: translateX(18%); } }
@keyframes uvaPageShinePrev { 0% { opacity: 0; transform: translateX(18%); } 35% { opacity: .45; transform: translateX(0); } 100% { opacity: 0; transform: translateX(-18%); } }
@media (prefers-reduced-motion: reduce) { .uva-page-shell.is-turning-next .uva-turning-page, .uva-page-shell.is-turning-prev .uva-turning-page, .uva-page-shell.is-turning-next .uva-page-shine, .uva-page-shell.is-turning-prev .uva-page-shine { animation-duration: 1ms; } }
@media (max-width: 782px) { .uva-flipbook-viewer { border-radius: 10px; min-height: 360px; } .uva-viewer-toolbar { grid-template-columns: 1fr; justify-items: center; gap: 10px; padding: 12px; } .uva-viewer-title { max-width: 100%; text-align: center; } .uva-viewer-spacer { display: none; } .uva-viewer-controls { max-width: 100%; overflow-x: auto; justify-content: flex-start; border-radius: 18px; } .uva-viewer-stage { padding: 14px; } .uva-pdf-canvas, .uva-page-shell { max-width: 96vw; max-height: calc(100vh - 175px); } .uva-viewer-controls .uva-download { display: none !important; } .uva-flipbook-lightbox { padding: 8px; } .uva-flipbook-lightbox .uva-flipbook-viewer { border-radius: 12px; } .uva-flipbook-lightbox__close, .uva-flipbook-lightbox button.uva-flipbook-lightbox__close { top: 12px !important; right: 12px !important; width: 42px !important; min-width: 42px !important; max-width: 42px !important; height: 42px !important; min-height: 42px !important; max-height: 42px !important; font-size: 23px !important; } }