/* ── CFIG FlipBook 3D — Public Styles ── */
:root {
  --wpfb-bg:     #151520;
  --wpfb-bar:    #0c0c18;
  --wpfb-accent: #e94560;
  --wpfb-text:   #e8e8f0;
  --wpfb-bdr:    rgba(255,255,255,.07);
}

.wpfb-wrap {
  position: relative;
  width: 100%;
  height: 700px;
  background: var(--wpfb-bg);
  color: var(--wpfb-text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  user-select: none;
  overflow: hidden;
  box-sizing: border-box;
}

.wpfb-wrap *, .wpfb-wrap *::before, .wpfb-wrap *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Layout */
.wpfb-layout {
  display: flex;
  height: 100%;
}

/* Sidebar */
.wpfb-sidebar {
  width: 140px;
  background: rgba(0,0,0,.4);
  overflow-y: auto;
  padding: .5rem .35rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  flex-shrink: 0;
}
.wpfb-sidebar::-webkit-scrollbar { width: 3px; }
.wpfb-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); }
.wpfb-sidebar-title {
  font-size: .68rem;
  opacity: .4;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .2rem .2rem .3rem;
}
.wpfb-cat-item {
  cursor: pointer;
  border-radius: 5px;
  overflow: hidden;
  border: 2px solid transparent;
  background: rgba(255,255,255,.04);
  transition: border-color .16s, background .16s;
  padding-bottom: .25rem;
}
.wpfb-cat-item:hover { border-color: rgba(233,69,96,.4); background: rgba(255,255,255,.07); }
.wpfb-cat-item.active { border-color: var(--wpfb-accent); }
.wpfb-cat-thumb { width: 100%; display: block; aspect-ratio: 3/2; object-fit: cover; }
.wpfb-cat-thumb-pdf {
  width: 100%; aspect-ratio: 3/2;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.06);
  font-size: .7rem; opacity: .4;
}
.wpfb-cat-name {
  font-size: .62rem;
  text-align: center;
  padding: .18rem .25rem 0;
  opacity: .6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Viewer wrap */
.wpfb-viewer-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#wpfb-viewer {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Toolbar */
#wpfb-tb {
  background: var(--wpfb-bar);
  padding: .3rem .55rem;
  display: flex;
  align-items: center;
  gap: .12rem;
  flex-shrink: 0;
  z-index: 10;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--wpfb-bdr);
}
.wpfb-tg {
  display: flex;
  align-items: center;
  gap: .08rem;
  padding: 0 .3rem;
  border-right: 1px solid var(--wpfb-bdr);
}
.wpfb-tg:last-child { border: none; margin-left: auto; }
.wpfb-btn {
  background: none;
  border: none;
  color: var(--wpfb-text);
  cursor: pointer;
  padding: .28rem .42rem;
  border-radius: 5px;
  font-size: .77rem;
  transition: background .14s;
  display: flex;
  align-items: center;
  gap: .22rem;
  white-space: nowrap;
  line-height: 1;
}
.wpfb-btn:hover { background: rgba(255,255,255,.08); }
.wpfb-btn.on    { background: var(--wpfb-accent); }
.wpfb-btn:disabled { opacity: .2; cursor: default; }
.wpfb-btn svg { width: 14px; height: 14px; flex-shrink: 0; }
.wpfb-sep { opacity: .3; font-size: .76rem; }
#wpfb-zlbl { font-size: .74rem; min-width: 34px; text-align: center; }
#wpfb-spd {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--wpfb-bdr);
  color: var(--wpfb-text);
  padding: .2rem .28rem;
  border-radius: 4px;
  font-size: .72rem;
  cursor: pointer;
}

/* Main */
#wpfb-main {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Thumbnails */
#wpfb-thumbs {
  width: 130px;
  background: rgba(0,0,0,.28);
  overflow-y: auto;
  padding: .4rem .3rem;
  display: none;
  flex-direction: column;
  gap: .3rem;
  flex-shrink: 0;
}
#wpfb-thumbs.on { display: flex; }
#wpfb-thumbs::-webkit-scrollbar { width: 3px; }
#wpfb-thumbs::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); }
.wpfb-th {
  cursor: pointer;
  border-radius: 3px;
  overflow: hidden;
  border: 2px solid transparent;
  background: #0a0a14;
  transition: border-color .16s;
}
.wpfb-th:hover { border-color: rgba(233,69,96,.4); }
.wpfb-th.cur   { border-color: var(--wpfb-accent); }
.wpfb-th canvas { width: 100%; display: block; }
.wpfb-thn { text-align: center; font-size: .62rem; padding: .1rem; opacity: .4; }

/* Viewport */
#wpfb-vp {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
#wpfb-vp canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
}

/* Status bar */
#wpfb-sb {
  background: var(--wpfb-bar);
  padding: .22rem .65rem;
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .7rem;
  opacity: .65;
  flex-shrink: 0;
  border-top: 1px solid var(--wpfb-bdr);
}
#wpfb-prog {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,.06);
  border-radius: 2px;
  cursor: pointer;
}
#wpfb-pfill {
  height: 100%;
  background: var(--wpfb-accent);
  border-radius: 2px;
  transition: width .22s;
}
#wpfb-sbz { min-width: 30px; text-align: right; }

/* Loading */
.wpfb-loading {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.8);
  z-index: 100;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .7rem;
}
.wpfb-loading.on { display: flex; }
.wpfb-spin {
  width: 40px; height: 40px;
  border: 3px solid rgba(255,255,255,.07);
  border-top-color: var(--wpfb-accent);
  border-radius: 50%;
  animation: wpfb-spin .6s linear infinite;
}
@keyframes wpfb-spin { to { transform: rotate(360deg); } }
#wpfb-ltxt  { font-size: .9rem; }
#wpfb-lprog { font-size: .75rem; opacity: .5; min-height: 1em; }

/* Toast */
#wpfb-toast {
  position: absolute;
  bottom: 1.4rem;
  left: 50%;
  transform: translateX(-50%) translateY(50px);
  opacity: 0;
  background: rgba(10,10,25,.95);
  color: #fff;
  padding: .45rem .9rem;
  z-index: 200;
  transition: .25s;
  font-size: .78rem;
  border: 1px solid var(--wpfb-bdr);
  white-space: nowrap;
  pointer-events: none;
}
#wpfb-toast.on { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── Mobile: sidebar moves to bottom strip ── */
@media (max-width: 899px) {
	#wpfb-vp canvas{
		padding-left: 10px;
		padding-right: 10px;
	}
  .wpfb-layout {
    flex-direction: column;
  }
  .wpfb-sidebar {
    order: 2;
    width: 100%;
    height: 88px;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding: .35rem .4rem;
    gap: .35rem;
    flex-shrink: 0;
    border-top: 1px solid var(--wpfb-bdr);
  }
  .wpfb-sidebar::-webkit-scrollbar { height: 3px; width: auto; }
  .wpfb-sidebar-title { display: none; }
  .wpfb-cat-item {
    min-width: 72px;
    max-width: 72px;
    flex-shrink: 0;
    padding-bottom: .2rem;
  }
  .wpfb-viewer-wrap {
    order: 1;
    flex: 1;
    min-height: 0;
  }
}

/* Zoom modal */
#wpfb-zm {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.96);
  z-index: 150;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
#wpfb-zm.on { display: flex; }
#wpfb-zmcv  { max-width: 94%; max-height: 94%; cursor: default; }