/* ==========================================================
   cpvuc-viewer.css — Retina-Optimized PDF Viewer Styles
   Matches cpvuc-viewer.js v3.9 (UltraHQ + OffscreenCanvas)
   Conflict-free | Smooth | High-DPI safe | Mobile-friendly
   © 2025 VTU Circle | MIT License
   ========================================================== */


/* ---------- Modal Wrapper ---------- */
.cpvuc-modal {
  position: fixed;
  inset: 0;
  display: none;
  justify-content: center;
  align-items: center;
  background: rgb(10 10 10 / 50%);
  z-index: 999999;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

/* ---------- Overlay ---------- */
.cpvuc-overlay {
  position: absolute;
  inset: 0;
  background: transparent;
}

/* ---------- Modal Content ---------- */
.cpvuc-content {
  position: relative;
  background: #fff;
  width: 95%;
  max-width: 900px;
  max-height: 95vh;
  /*border-radius: 10px;*/
      border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    border-bottom-right-radius: 5px;
    border-bottom-left-radius: 5px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

@media(max-width:991px){
    .cpvuc-content{
        max-height: 80vh;
    }
	
	.cpvuc-controls{
		bottom: 15px !important;
	}
}

/* ---------- Toolbar ---------- */
.cpvuc-toolbar {
  background: #000;
  color: #fff;
  padding: 14px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  letter-spacing: 0.2px;
  user-select: none;
}

.cpvuc-actions {
    display: flex;
    gap: 12px;
}

.cpvuc-title {
    font-size: 19px;
}

.cpvuc-title i
 {
    margin-right: 2px;
}

.cpvuc-actions #cpvuc-download,
.cpvuc-actions #cpvuc-close{
    background: #fff;
    border: none;
    border-radius: 5px;
    font-size: 15px;
    padding: 9px 12px;
    line-height: normal;
  cursor: pointer;
  transition: box-shadow 0.25s ease;
}

.cpvuc-actions #cpvuc-download{
    color: #6200ee;
}

.cpvuc-actions #cpvuc-close{
    color: red;
    padding: 8px 14px;
}

.cpvuc-actions #cpvuc-close:hover {
    box-shadow: 0 0 0 2px, 0 0 0 5px #fff;
}

.cpvuc-actions #cpvuc-download:hover {
    box-shadow: 0 0 0 2px, 0 0 0 5px #fff;
}

/* ---------- Loader ---------- */
.cpvuc-loader {
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 48px 24px;
  font-size: 0.9rem;
  color: #666;
}

.cpvuc-spinner {
  width: 35px;
  height: 35px;
  border: 4px solid #6200ee29;
  border-top-color: #6200ee;
  border-radius: 50%;
  animation: cpvuc-spin 0.8s linear infinite;
  margin-bottom: 12px;
  will-change: transform;
  transform: translateZ(0);
}

@keyframes cpvuc-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}


/* ---------- Canvas Container ---------- */
.cpvuc-canvas {
  flex: 1;
  background: #fff;
  padding: 3px 8px;
  overflow-y: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: none;
    scrollbar-width: thin;
    scrollbar-color: #bcbafc #f1f1f1;
}

/* ---------- PDF Canvases ---------- */
.cpvuc-canvas canvas {
  display: block;
  margin: 14px auto;
  max-width: 100%;
  height: auto;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  transition: opacity 0.3s ease, transform 0.3s ease;
  opacity: 0;
  transform: translateZ(0);
}
.cpvuc-canvas canvas[rendered] {
  opacity: 1;
  transform: scale(1.001); /* minor GPU hint for crisp edges */
}

/* ---------- Scrollbar Refinement ---------- */
.cpvuc-canvas::-webkit-scrollbar {
  height: 7px;
}
.cpvuc-canvas::-webkit-scrollbar-thumb {
  background: #bcbafc;              /* VTU brand tone */
  border-radius: 4px;
}
.cpvuc-canvas::-webkit-scrollbar-track{
     background: #f1f1f1; 
}
.cpvuc-canvas:hover::-webkit-scrollbar-thumb {
  background: #7b5cff; 
}














.cpvuc-controls {
  position: absolute;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(25, 25, 25, 0.85);
  color: #fff;
  padding: 6px 14px;
  border-radius: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: clamp(13px, 2vw, 15px);
  backdrop-filter: blur(6px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
  transition: opacity 0.3s ease;
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
}

.cpvuc-controls span {
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.cpvuc-modal .cpvuc-controls[style*="display: flex"] {
  opacity: 1;
}