:root { color-scheme: dark; }
* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body { background: #17191c; color: #fff; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, select, input { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.pdf-reader { display: grid; grid-template-rows: auto minmax(0, 1fr); width: 100%; height: 100dvh; }
.pdf-reader__toolbar { z-index: 10; display: flex; align-items: center; gap: .4rem; min-height: 54px; padding: .45rem max(.6rem, env(safe-area-inset-right)) .45rem max(.6rem, env(safe-area-inset-left)); background: rgba(24,27,31,.96); border-bottom: 1px solid #3b4047; box-shadow: 0 2px 12px rgba(0,0,0,.3); }
.pdf-reader__group { display: flex; gap: .25rem; }
.pdf-reader__toolbar button, .pdf-reader__toolbar a, .pdf-reader__toolbar select { min-width: 2.35rem; min-height: 2.35rem; border: 1px solid #565d66; border-radius: .4rem; background: #292d32; color: #fff; text-decoration: none; display: inline-grid; place-items: center; cursor: pointer; }
.pdf-reader__toolbar button:hover, .pdf-reader__toolbar a:hover, .pdf-reader__toolbar select:hover { background: #3b4148; }
.pdf-reader__toolbar button:focus-visible, .pdf-reader__toolbar a:focus-visible, .pdf-reader__toolbar select:focus-visible, .pdf-reader__viewport:focus-visible { outline: 3px solid #6ea8fe; outline-offset: 1px; }
.pdf-reader__toolbar button:disabled { opacity: .35; cursor: default; }
.pdf-reader__toolbar select { width: auto; padding: 0 .55rem; }
.pdf-reader__separator { width: 1px; height: 1.7rem; background: #565d66; margin: 0 .15rem; }
.pdf-reader__spacer { flex: 1; }
.pdf-reader__counter { display: flex; align-items: center; gap: .3rem; white-space: nowrap; }
.pdf-reader__counter select { width: 5.5rem; min-height: 2.35rem; padding: 0 .4rem; }
.pdf-reader__viewport { position: relative; min-height: 0; overflow: hidden; touch-action: none; user-select: none; overscroll-behavior: contain; }
.pdf-reader__canvas { position: absolute; inset: 0; display: flex; justify-content: center; align-items: center; gap: 0; transform-origin: 0 0; will-change: transform; cursor: grab; }
.pdf-reader__canvas.is-dragging { cursor: grabbing; }
.pdf-reader__page { position: relative; flex: 0 0 auto; max-height: 100%; box-shadow: 0 5px 24px rgba(0,0,0,.45); background: #fff; }
.pdf-reader__page + .pdf-reader__page { border-left: 1px solid rgba(0,0,0,.45); }
.pdf-reader__page img { display: block; width: auto; height: auto; max-width: 100%; max-height: 100%; object-fit: contain; pointer-events: none; }
.pdf-reader__map { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.pdf-reader__map a { pointer-events: auto; cursor: pointer; }
.pdf-reader__loading { position: absolute; left: 50%; top: 50%; translate: -50% -50%; padding: .65rem 1rem; border-radius: .45rem; background: rgba(0,0,0,.72); }
@media (max-width: 720px) {
  .pdf-reader__toolbar { gap: .25rem; overflow-x: auto; }
  .pdf-reader__separator, [data-action="first"], [data-action="last"], [data-action="sound"] { display: none !important; }
  .pdf-reader__toolbar [data-role="layout"] { max-width: 2.55rem; color: transparent; background-image: none; }
  .pdf-reader__counter select { width: 5rem; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }