:root{color-scheme:dark;--bpt-bg:#191919;--bpt-panel:#252525;--bpt-text:#fff;--bpt-muted:#b9b9b9;--bpt-accent:#fff}
*{box-sizing:border-box}
html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bpt-bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--bpt-text)}
button{font:inherit}
.bpt-viewer{position:fixed;inset:0;display:grid;grid-template-rows:58px minmax(0,1fr);background:radial-gradient(circle at center,#303030 0,#171717 65%)}
.bpt-toolbar{position:relative;z-index:30;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;padding:8px 14px;background:rgba(20,20,20,.94);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 3px 16px rgba(0,0,0,.3)}
.bpt-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:600}
.bpt-toolbar__center,.bpt-toolbar__right{display:flex;align-items:center;gap:6px}
.bpt-toolbar__right{justify-content:flex-end}
.bpt-control{display:inline-flex;min-width:38px;height:38px;align-items:center;justify-content:center;border:0;border-radius:4px;background:transparent;color:#fff;cursor:pointer;font-size:20px;text-decoration:none}
.bpt-control:hover,.bpt-control:focus-visible{background:rgba(255,255,255,.12);outline:none}
.bpt-counter{min-width:72px;text-align:center;color:var(--bpt-muted);font-size:13px;font-variant-numeric:tabular-nums}
.bpt-stage{position:relative;min-height:0;overflow:auto;display:flex;align-items:center;justify-content:center;padding:24px 70px 34px}
.bpt-stage__inner{width:100%;height:100%;min-height:380px;display:flex;align-items:center;justify-content:center;transition:transform .18s ease}
.bpt-book{width:100%;height:100%;max-width:1500px;max-height:calc(100vh - 96px)}
.bpt-page{position:relative;background:#fff;box-shadow:inset 0 0 0 1px rgba(0,0,0,.07);overflow:hidden}
.bpt-page::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.04),transparent 8%,transparent 92%,rgba(0,0,0,.05));pointer-events:none}
.bpt-page canvas{display:block;width:100%;height:100%;object-fit:contain;background:#fff;opacity:0;transition:opacity .22s ease}
.bpt-page.is-rendered canvas{opacity:1}
.bpt-page:not(.is-rendered)::before{content:"";position:absolute;left:50%;top:50%;width:25px;height:25px;margin:-13px;border:3px solid #ddd;border-top-color:#777;border-radius:50%;animation:bpt-spin .8s linear infinite}
.bpt-loader{position:absolute;z-index:40;inset:58px 0 0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#181818;transition:opacity .25s ease}
.bpt-loader[hidden]{display:none}
.bpt-loader__status{margin-bottom:14px;color:#eee;font-size:15px}
.bpt-loader__bar{width:min(360px,70vw);height:4px;overflow:hidden;border-radius:4px;background:#3b3b3b}
.bpt-loader__progress{display:block;width:0;height:100%;background:#fff;transition:width .2s ease}
.bpt-loader.has-error .bpt-loader__progress{background:#d63638}
.bpt-help{position:absolute;z-index:20;left:50%;bottom:8px;transform:translateX(-50%);color:rgba(255,255,255,.55);font-size:11px;pointer-events:none}
@keyframes bpt-spin{to{transform:rotate(360deg)}}
@media(max-width:760px){.bpt-viewer{grid-template-rows:52px minmax(0,1fr)}.bpt-toolbar{grid-template-columns:minmax(0,1fr) auto;padding:7px 8px}.bpt-toolbar__center{display:none}.bpt-title{font-size:13px}.bpt-control{min-width:34px;height:34px}.bpt-stage{padding:12px 8px 28px}.bpt-book{max-height:calc(100vh - 78px)}.bpt-help{display:none}.bpt-loader{inset:52px 0 0}}
@media(max-width:420px){.bpt-title{max-width:120px}.bpt-toolbar__right{gap:1px}.bpt-control[data-action="zoom-in"],.bpt-control[data-action="zoom-out"]{display:none}}

.bpt-page{isolation:isolate}
.bpt-link-layer{position:absolute;z-index:8;inset:0;pointer-events:none}
.bpt-pdf-link{position:absolute;display:block;pointer-events:auto;background:rgba(255,255,0,0);border:0;cursor:pointer}
.bpt-pdf-link:hover,.bpt-pdf-link:focus-visible{outline:2px solid rgba(34,113,177,.75);background:rgba(34,113,177,.10)}
.bpt-focus-view{position:absolute;z-index:25;inset:0;display:flex;align-items:center;justify-content:center;padding:18px 28px 42px;background:radial-gradient(circle at center,#303030 0,#171717 70%);overflow:auto}
.bpt-focus-view[hidden]{display:none}
.bpt-focus-page{position:relative;display:flex;align-items:center;justify-content:center;max-width:100%;max-height:100%;background:#fff;box-shadow:0 12px 42px rgba(0,0,0,.45)}
.bpt-focus-page canvas{display:block;max-width:100%;max-height:calc(100vh - 130px);width:auto;height:auto;background:#fff}
.bpt-focus-page .bpt-link-layer{pointer-events:auto}
.bpt-focus-hint{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);color:rgba(255,255,255,.62);font-size:11px;white-space:nowrap}
.bpt-viewer.is-focus-mode .bpt-book{visibility:hidden}
.bpt-control[data-action="sound"].is-muted{opacity:.55}
@media(max-width:760px){.bpt-focus-view{padding:10px 8px 35px}.bpt-focus-page canvas{max-height:calc(100vh - 100px)}}

/* PDF-linklaag moet altijd boven canvas, schaduwen en pageturner-interactie liggen. */
.bpt-page canvas{position:relative;z-index:1}
.bpt-page::after{z-index:2}
.bpt-page .bpt-link-layer{
	z-index:9999 !important;
	pointer-events:auto !important;
	transform:translateZ(10px);
}
.bpt-page .bpt-pdf-link{
	z-index:10000 !important;
	pointer-events:auto !important;
	-webkit-user-select:none;
	user-select:none;
	touch-action:manipulation;
}
.bpt-page .bpt-pdf-link:hover,
.bpt-page .bpt-pdf-link:focus-visible{
	outline:2px solid rgba(34,113,177,.95);
	outline-offset:-1px;
	background:rgba(34,113,177,.14);
}

/* Links expliciet herkenbaar en klikbaar. */
.bpt-pdf-link{
	cursor:pointer !important;
}
.bpt-pdf-link:hover{
	background:rgba(34,113,177,.18) !important;
	box-shadow:inset 0 0 0 2px rgba(34,113,177,.95);
}

/* Versie 1.1.4: links zichtbaar boven de pageturner. */
.bpt-link-layer {
	z-index: 2147483000 !important;
	pointer-events: auto !important;
}

.bpt-pdf-link {
	z-index: 2147483001 !important;
	pointer-events: auto !important;
	cursor: pointer !important;
}

.bpt-pdf-link:hover,
.bpt-pdf-link:focus-visible {
	background: rgba(30, 115, 190, .20) !important;
	box-shadow: inset 0 0 0 2px rgba(30, 115, 190, .95) !important;
	outline: none !important;
}


/* Versie 1.1.6: technische lege beginpagina is volledig onzichtbaar. */
.bpt-page--blank,
.bpt-page--blank.is-rendered {
	visibility: hidden !important;
	opacity: 0 !important;
	background: transparent !important;
	box-shadow: none !important;
	border: 0 !important;
}

.bpt-page--blank::before,
.bpt-page--blank::after {
	display: none !important;
	content: none !important;
}

.bpt-page--blank canvas {
	opacity: 0 !important;
	background: transparent !important;
	box-shadow: none !important;
}