/*!
 * UWDP 3D FlipBook — viewer styles
 * Copyright (c) Utah Web Design Pros. Licensed GPL-2.0-or-later.
 */

/* ---------- Embed / trigger wrappers ---------- */
.uwdpfb { position: relative; box-sizing: border-box; }
.uwdpfb *, .uwdpfb *::before, .uwdpfb *::after { box-sizing: border-box; }
.uwdpfb-embed { position: relative; width: 100%; height: 80vh; min-height: 380px; border-radius: var(--uwdpfb-radius, 10px); overflow: hidden; background: #e9e5de; }
.uwdpfb-embed.is-full { height: 100vh; border-radius: 0; }
.uwdpfb-embed-title { margin: 0 0 .6em; font-size: 1.15em; }

.uwdpfb-thumb-card { display: inline-flex; flex-direction: column; align-items: center; gap: .7em; max-width: 100%; text-decoration: none !important; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; font: inherit; text-align: center; }
.uwdpfb-thumb-cover { position: relative; display: block; width: var(--uwdpfb-thumb-w, 240px); max-width: 100%; border-radius: 3px 6px 6px 3px; overflow: hidden; background: #f1eee8; box-shadow: 0 1px 2px rgba(0,0,0,.12), 0 10px 26px -8px rgba(0,0,0,.35); transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s; }
.uwdpfb-thumb-cover::before { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(90deg, rgba(0,0,0,.18) 0, rgba(255,255,255,.18) 2.5%, rgba(0,0,0,.06) 5%, transparent 9%); }
.uwdpfb-thumb-cover img { display: block; width: 100%; height: auto; aspect-ratio: var(--uwdpfb-ratio, 0.7727); object-fit: cover; margin: 0; border: 0; }
.uwdpfb-thumb-cover img[data-uwdpfb-autothumb]:not(.is-ready) { opacity: 0; }
.uwdpfb-thumb-cover img[data-uwdpfb-autothumb] { transition: opacity .4s; }
.uwdpfb-thumb-card:hover .uwdpfb-thumb-cover, .uwdpfb-thumb-card:focus-visible .uwdpfb-thumb-cover { transform: translateY(-4px) rotateZ(-.4deg); box-shadow: 0 2px 4px rgba(0,0,0,.12), 0 22px 40px -12px rgba(0,0,0,.45); }
.uwdpfb-thumb-badge { position: absolute; z-index: 2; left: 50%; bottom: 14px; transform: translate(-50%, 8px); opacity: 0; background: rgba(20,20,22,.82); color: #fff; font-size: 13px; line-height: 1; letter-spacing: .04em; padding: 9px 14px; border-radius: 999px; transition: opacity .25s, transform .25s; white-space: nowrap; }
.uwdpfb-thumb-card:hover .uwdpfb-thumb-badge, .uwdpfb-thumb-card:focus-visible .uwdpfb-thumb-badge { opacity: 1; transform: translate(-50%, 0); }
.uwdpfb-thumb-title { font-weight: 600; line-height: 1.3; }

.uwdpfb-button { display: inline-flex; align-items: center; gap: .5em; padding: .8em 1.4em; border-radius: 999px; border: 0; background: var(--uwdpfb-accent, #8a5a44); color: #fff !important; font: inherit; font-weight: 600; line-height: 1; text-decoration: none !important; cursor: pointer; transition: filter .2s, transform .2s; }
.uwdpfb-button:hover { filter: brightness(1.08); transform: translateY(-1px); }
.uwdpfb-button svg { width: 1.15em; height: 1.15em; }
.uwdpfb-link { cursor: pointer; }

.uwdpfb-gallery { display: grid; grid-template-columns: repeat(var(--uwdpfb-cols, 3), minmax(0, 1fr)); gap: 32px 24px; align-items: start; justify-items: center; }
.uwdpfb-gallery .uwdpfb { width: 100%; display: flex; justify-content: center; }
.uwdpfb-gallery .uwdpfb-thumb-cover { width: 100%; }
@media (max-width: 782px) { .uwdpfb-gallery { grid-template-columns: repeat(min(var(--uwdpfb-cols, 3), 2), minmax(0, 1fr)); gap: 24px 16px; } }
@media (max-width: 420px) { .uwdpfb-gallery { grid-template-columns: 1fr; } }

.uwdpfb-locked { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; padding: 24px; border-radius: 12px; background: #f6f3ee; color: #2a2a2a; }
.uwdpfb-locked .uwdpfb-thumb-cover { width: 180px; filter: saturate(.85); }
.uwdpfb-locked-body { flex: 1 1 240px; }
.uwdpfb-locked-body h3 { margin: 0 0 .4em; font-size: 1.2em; }
.uwdpfb-locked-body p { margin: 0 0 1em; }
.uwdpfb-lock { position: absolute; z-index: 2; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(20,20,22,.35); color: #fff; }
.uwdpfb-lock svg { width: 40px; height: 40px; filter: drop-shadow(0 2px 6px rgba(0,0,0,.4)); }
.uwdpfb-notice { padding: 12px 16px; border-left: 4px solid #c9a86a; background: #faf7f1; }

/* ---------- Viewer ---------- */
.fbv {
  --fbv-bg: radial-gradient(ellipse at 50% 40%, #f6f3ee 0%, #e4dfd6 60%, #d6d0c5 100%);
  --fbv-bar: rgba(255,255,255,.9);
  --fbv-bar-border: rgba(0,0,0,.08);
  --fbv-fg: #2c2a28;
  --fbv-muted: #7b766f;
  --fbv-hover: rgba(0,0,0,.06);
  --fbv-accent: #a7804f;
  --fbv-panel: rgba(255,255,255,.96);
  --fbv-shadow: 0 8px 30px -10px rgba(0,0,0,.35), 0 1px 3px rgba(0,0,0,.08);
  position: relative; width: 100%; height: 100%; min-height: 300px; overflow: hidden;
  background: var(--fbv-bg); color: var(--fbv-fg);
  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  outline: none; -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent;
}
.fbv *, .fbv *::before, .fbv *::after { box-sizing: border-box; }
.fbv.fbv-skin-dark {
  --fbv-bg: radial-gradient(ellipse at 50% 40%, #3a3a40 0%, #232327 65%, #18181b 100%);
  --fbv-bar: rgba(34,34,38,.88);
  --fbv-bar-border: rgba(255,255,255,.08);
  --fbv-fg: #eeeae4;
  --fbv-muted: #a19d96;
  --fbv-hover: rgba(255,255,255,.1);
  --fbv-accent: #d2ad73;
  --fbv-panel: rgba(30,30,34,.97);
}
.fbv:focus-visible { box-shadow: inset 0 0 0 2px var(--fbv-accent); }
.fbv.fbv-in-lb { background: transparent; }
.fbv button { font: inherit; color: inherit; }
.fbv .fbv-ico { width: 20px; height: 20px; display: block; flex: none; }

.fbv-stage { position: absolute; top: 18px; right: 64px; bottom: 78px; left: 64px; transition: left .3s, right .3s; }
.fbv-tb-compact .fbv-stage { bottom: 70px; }
.fbv-narrow .fbv-stage { top: 10px; right: 10px; left: 10px; bottom: 66px; }
.fbv-in-lb .fbv-stage { top: 4px; }
.fbv-canvas { display: block; position: absolute; inset: 0; outline: none; }
.fbv-panel-open:not(.fbv-narrow) .fbv-stage { left: 340px; }

/* loading */
.fbv-loading { position: absolute; inset: 0; z-index: 5; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; transition: opacity .4s, visibility .4s; color: var(--fbv-muted); }
.fbv-loading.fbv-hide { opacity: 0; visibility: hidden; pointer-events: none; }
.fbv-spinner, .fbv-page-spin { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--fbv-hover); border-top-color: var(--fbv-accent); animation: fbv-spin .8s linear infinite; }
.fbv-progress { width: min(220px, 60%); height: 3px; border-radius: 3px; background: var(--fbv-hover); overflow: hidden; }
.fbv-progress span { display: block; height: 100%; width: 0; background: var(--fbv-accent); transition: width .2s; }
.fbv-loading-txt { font-size: 13px; letter-spacing: .03em; }
.fbv-error { max-width: 420px; padding: 20px; text-align: center; color: var(--fbv-fg); }
.fbv-error a { color: var(--fbv-accent); font-weight: 600; }
.fbv-page-spin { position: absolute; z-index: 4; top: 14px; right: 14px; width: 18px; height: 18px; border-width: 2px; opacity: 0; transition: opacity .3s; pointer-events: none; }
.fbv-busy.fbv-ready .fbv-page-spin { opacity: .9; transition-delay: .35s; }
@keyframes fbv-spin { to { transform: rotate(360deg); } }

/* side arrows */
.fbv-arrow { position: absolute; z-index: 3; top: 50%; margin-top: -40px; width: 48px; height: 80px; display: flex; align-items: center; justify-content: center; border: 0; padding: 0; border-radius: 10px; background: transparent; color: var(--fbv-fg); opacity: .55; cursor: pointer; transition: opacity .2s, background .2s; }
.fbv-arrow .fbv-ico { width: 34px; height: 34px; stroke-width: 1.5; }
.fbv-arrow:hover { opacity: 1; background: var(--fbv-hover); }
.fbv-arrow:disabled { opacity: 0; pointer-events: none; }
.fbv-arrow-prev { left: 8px; }
.fbv-arrow-next { right: 8px; }
.fbv-narrow .fbv-arrow { width: 36px; height: 60px; margin-top: -30px; background: var(--fbv-bar); box-shadow: var(--fbv-shadow); opacity: .85; }
.fbv-narrow .fbv-arrow .fbv-ico { width: 24px; height: 24px; }
.fbv-narrow .fbv-arrow-prev { left: 4px; } .fbv-narrow .fbv-arrow-next { right: 4px; }
.fbv-zoomed .fbv-arrow { opacity: .3; }
.fbv-rtl-book .fbv-group-c { flex-direction: row-reverse; }
.fbv-panel-open:not(.fbv-narrow) .fbv-arrow-prev { left: 300px; }

.fbv-title { position: absolute; z-index: 3; top: 12px; left: 50%; transform: translateX(-50%); max-width: 70%; padding: 6px 14px; border-radius: 999px; background: var(--fbv-bar); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; box-shadow: var(--fbv-shadow); }

/* toolbar */
.fbv-toolbar { position: absolute; z-index: 6; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; align-items: center; gap: 6px; padding: 5px 6px; max-width: calc(100% - 24px); border-radius: 14px; background: var(--fbv-bar); border: 1px solid var(--fbv-bar-border); box-shadow: var(--fbv-shadow); -webkit-backdrop-filter: blur(14px) saturate(1.4); backdrop-filter: blur(14px) saturate(1.4); opacity: 0; transition: opacity .4s; }
.fbv-ready .fbv-toolbar { opacity: 1; }
.fbv-group { display: flex; align-items: center; gap: 2px; }
.fbv-group + .fbv-group { padding-left: 6px; border-left: 1px solid var(--fbv-bar-border); }
.fbv-btn { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0; border: 0; border-radius: 9px; background: transparent; cursor: pointer; transition: background .15s, color .15s, opacity .15s; color: var(--fbv-fg); }
.fbv-btn:hover { background: var(--fbv-hover); }
.fbv-btn:focus-visible, .fbv-menu-item:focus-visible, .fbv-arrow:focus-visible, .fbv-tab:focus-visible, .fbv-thumb:focus-visible, .fbv-toc-item:focus-visible, .fbv-result:focus-visible { outline: 2px solid var(--fbv-accent); outline-offset: 1px; }
.fbv-btn:disabled { opacity: .35; cursor: default; background: transparent; }
.fbv-btn-more { display: none; }
.fbv-pagebox { display: flex; align-items: center; gap: 4px; padding: 0 6px; font-variant-numeric: tabular-nums; }
.fbv-page-input { width: 64px; height: 30px; padding: 0 6px; border: 1px solid var(--fbv-bar-border); border-radius: 7px; background: var(--fbv-hover); color: var(--fbv-fg); font: inherit; font-weight: 600; text-align: center; outline: none; -webkit-user-select: text; user-select: text; }
.fbv-page-input:focus { border-color: var(--fbv-accent); }
.fbv-page-total { color: var(--fbv-muted); white-space: nowrap; }

/* compact / narrow: secondary buttons move to the "more" menu */
.fbv-tb-compact .fbv-sec, .fbv-narrow .fbv-sec { display: none; }
.fbv-tb-compact .fbv-btn-more, .fbv-narrow .fbv-btn-more { display: inline-flex; }
.fbv-tb-compact .fbv-toolbar { border-radius: 999px; }
.fbv-tiny .fbv-page-input { width: 52px; }
.fbv-tiny .fbv-btn { width: 34px; height: 34px; }
.fbv-tiny .fbv-group + .fbv-group { padding-left: 3px; }

.fbv-menu { position: absolute; z-index: 8; bottom: 72px; right: 12px; min-width: 210px; padding: 6px; border-radius: 12px; background: var(--fbv-panel); border: 1px solid var(--fbv-bar-border); box-shadow: var(--fbv-shadow); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.fbv-menu[hidden], .fbv-panel[hidden], .fbv-share[hidden], .fbv-tabpane[hidden] { display: none !important; }
.fbv-menu-item { display: flex; align-items: center; gap: 12px; width: 100%; padding: 9px 10px; border: 0; border-radius: 8px; background: transparent; text-align: left; cursor: pointer; }
.fbv-menu-item:hover { background: var(--fbv-hover); }
.fbv-menu-item .fbv-ico { width: 18px; height: 18px; color: var(--fbv-muted); }
.fbv:not(.fbv-tb-compact):not(.fbv-narrow) .fbv-menu { display: none !important; }

/* side panel */
.fbv-panel { position: absolute; z-index: 7; top: 0; bottom: 0; left: 0; width: 320px; max-width: 88%; display: flex; flex-direction: column; background: var(--fbv-panel); border-right: 1px solid var(--fbv-bar-border); box-shadow: var(--fbv-shadow); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); animation: fbv-slide .25s ease-out; -webkit-user-select: text; user-select: text; }
@keyframes fbv-slide { from { transform: translateX(-24px); opacity: 0; } to { transform: none; opacity: 1; } }
.fbv-panel-head { display: flex; align-items: center; gap: 6px; padding: 10px 10px 8px 12px; border-bottom: 1px solid var(--fbv-bar-border); }
.fbv-tabs { display: flex; gap: 4px; flex: 1; }
.fbv-tab { padding: 7px 12px; border: 0; border-radius: 8px; background: transparent; cursor: pointer; font-weight: 600; color: var(--fbv-muted); }
.fbv-tab:hover { background: var(--fbv-hover); }
.fbv-tab.is-active { color: var(--fbv-fg); background: var(--fbv-hover); }
.fbv-tabpane { flex: 1; overflow: auto; padding: 10px 12px 16px; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; }
.fbv-tabpane[data-pane="search"] { display: flex; flex-direction: column; }
.fbv-empty { margin: 16px 4px; color: var(--fbv-muted); }
.fbv-toc, .fbv-toc ul { list-style: none; margin: 0; padding: 0; }
.fbv-toc ul { padding-left: 16px; }
.fbv-toc-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 8px 8px; border: 0; border-radius: 8px; background: transparent; text-align: left; cursor: pointer; line-height: 1.3; }
.fbv-toc-item:hover { background: var(--fbv-hover); }
.fbv-toc-item .fbv-ico { width: 15px; height: 15px; color: var(--fbv-accent); }
.fbv-toc-item span { flex: 1; }
.fbv-toc-item em { font-style: normal; color: var(--fbv-muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.fbv-thumbs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 12px; }
.fbv-thumb { display: block; padding: 4px; border: 0; border-radius: 8px; background: transparent; cursor: pointer; text-align: center; }
.fbv-thumb:hover { background: var(--fbv-hover); }
.fbv-thumb-img { position: relative; display: block; background: #fff; border-radius: 2px; box-shadow: 0 1px 3px rgba(0,0,0,.18); overflow: hidden; }
.fbv-thumb-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; animation: fbv-fade .3s; }
@keyframes fbv-fade { from { opacity: 0; } }
.fbv-thumb-n { display: block; margin-top: 5px; font-size: 12px; color: var(--fbv-muted); font-variant-numeric: tabular-nums; }
.fbv-thumb.is-current .fbv-thumb-img { box-shadow: 0 0 0 3px var(--fbv-accent); }
.fbv-thumb.is-current .fbv-thumb-n { color: var(--fbv-fg); font-weight: 700; }
.fbv-search-form { display: flex; gap: 6px; margin-bottom: 8px; }
.fbv-search-input { flex: 1; min-width: 0; height: 38px; padding: 0 12px; border: 1px solid var(--fbv-bar-border); border-radius: 9px; background: var(--fbv-hover); color: var(--fbv-fg); font: inherit; outline: none; }
.fbv-search-input:focus { border-color: var(--fbv-accent); }
.fbv-count { margin: 6px 4px; color: var(--fbv-muted); font-size: 12px; }
.fbv-result { display: block; width: 100%; padding: 9px 10px; margin-bottom: 4px; border: 0; border-radius: 8px; background: transparent; text-align: left; cursor: pointer; line-height: 1.4; }
.fbv-result:hover { background: var(--fbv-hover); }
.fbv-result em { display: block; font-style: normal; font-size: 12px; font-weight: 700; color: var(--fbv-accent); }
.fbv-result mark { background: rgba(210,173,115,.45); color: inherit; border-radius: 2px; padding: 0 1px; }

/* share popover */
.fbv-share { position: absolute; z-index: 8; left: 50%; bottom: 76px; transform: translateX(-50%); width: min(360px, calc(100% - 24px)); padding: 14px; border-radius: 14px; background: var(--fbv-panel); border: 1px solid var(--fbv-bar-border); box-shadow: var(--fbv-shadow); -webkit-user-select: text; user-select: text; animation: fbv-fade .2s; }
.fbv-share-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.fbv-share-head .fbv-btn { width: 30px; height: 30px; }
.fbv-share-link { display: flex; gap: 6px; }
.fbv-share-link input { flex: 1; min-width: 0; height: 36px; padding: 0 10px; border: 1px solid var(--fbv-bar-border); border-radius: 8px; background: var(--fbv-hover); color: var(--fbv-fg); font: inherit; font-size: 13px; }
.fbv-share-page { display: flex; align-items: center; gap: 6px; margin: 10px 2px; font-size: 13px; color: var(--fbv-muted); cursor: pointer; }
.fbv-share-nets { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.fbv-net { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 8px 2px; border-radius: 9px; color: var(--fbv-fg) !important; text-decoration: none !important; font-size: 11px; }
.fbv-net:hover { background: var(--fbv-hover); }
.fbv-net .fbv-ico { width: 22px; height: 22px; }

.fbv-toast { position: absolute; z-index: 9; left: 50%; top: 18px; transform: translate(-50%, -10px); padding: 8px 14px; border-radius: 999px; background: rgba(20,20,22,.88); color: #fff; font-size: 13px; opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; }
.fbv-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* fullscreen */
.fbv.fbv-fs, .fbv:fullscreen { width: 100vw; height: 100vh; border-radius: 0; }
.fbv:-webkit-full-screen { width: 100vw; height: 100vh; }
.fbv.fbv-pseudo-fs { position: fixed !important; inset: 0; z-index: 2147483000; width: 100vw; height: 100vh; height: 100dvh; }
.fbv.fbv-in-lb.fbv-fs { background: var(--fbv-bg); }
html.fbv-noscroll, html.fbv-noscroll body { overflow: hidden !important; }

/* ---------- Lightbox ---------- */
.uwdpfb-lb { position: fixed; inset: 0; z-index: 2147482000; display: flex; flex-direction: column; opacity: 0; transition: opacity .25s ease; color: #f3efe9; }
.uwdpfb-lb.is-open { opacity: 1; }
.uwdpfb-lb-dark { background: rgba(18,18,22,.84); -webkit-backdrop-filter: blur(10px) saturate(1.2); backdrop-filter: blur(10px) saturate(1.2); }
.uwdpfb-lb-dark-shadow { background: radial-gradient(ellipse at center, rgba(40,40,46,.86) 0%, rgba(8,8,10,.96) 75%); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.uwdpfb-lb-light { background: rgba(250,248,244,.86); color: #2c2a28; -webkit-backdrop-filter: blur(12px) saturate(1.3); backdrop-filter: blur(12px) saturate(1.3); }
.uwdpfb-lb-bar { flex: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 54px; padding: 0 10px 0 22px; }
.uwdpfb-lb-title { font: 600 15px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; letter-spacing: .02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.uwdpfb-lb-close { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); color: inherit; cursor: pointer; transition: background .2s, transform .2s; }
.uwdpfb-lb-light .uwdpfb-lb-close { background: rgba(0,0,0,.06); }
.uwdpfb-lb-close:hover { background: rgba(255,255,255,.2); transform: rotate(90deg); }
.uwdpfb-lb-close .fbv-ico { width: 22px; height: 22px; }
.uwdpfb-lb-close:focus-visible { outline: 2px solid #d2ad73; outline-offset: 2px; }
.uwdpfb-lb-body { position: relative; flex: 1; min-height: 0; transform: scale(.97); transition: transform .3s cubic-bezier(.2,.8,.2,1); }
.uwdpfb-lb.is-open .uwdpfb-lb-body { transform: none; }
.uwdpfb-lb .fbv { position: absolute; inset: 0; min-height: 0; }
.uwdpfb-lb-dark .fbv, .uwdpfb-lb-dark-shadow .fbv { --fbv-bar: rgba(34,34,38,.88); --fbv-bar-border: rgba(255,255,255,.08); --fbv-fg: #eeeae4; --fbv-muted: #a19d96; --fbv-hover: rgba(255,255,255,.1); --fbv-panel: rgba(30,30,34,.97); --fbv-accent: #d2ad73; }

@media (prefers-reduced-motion: reduce) {
  .fbv *, .uwdpfb-lb, .uwdpfb-lb-body, .uwdpfb-thumb-cover { transition: none !important; animation: none !important; }
}
@media print { .uwdpfb-lb { display: none !important; } }