/* ADNG Revista Digital — visor flipbook */
body.viewer { height: 100vh; height: 100dvh; overflow: hidden; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; background:
  radial-gradient(900px 520px at 50% 38%, color-mix(in srgb, var(--brand) 55%, #2b4a70), transparent 70%),
  linear-gradient(180deg, color-mix(in srgb, var(--brand) 85%, black), color-mix(in srgb, var(--brand) 60%, black)); color: #fff; }

.topbar { display: flex; align-items: center; gap: 16px; padding: 10px max(16px, env(safe-area-inset-left)); background: rgba(8, 18, 30, .35); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.08); z-index: 5; }
.brand img { height: 34px; width: auto; }
.doc-title { flex: 1; min-width: 0; margin: 0; font-size: 15px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: rgba(255,255,255,.88); }
.top-actions { display: flex; align-items: center; gap: 10px; }
.badge-preview { background: #ffcf5c; color: #3b2a00; font-size: 12px; font-weight: 700; padding: 6px 10px; border-radius: 999px; }
.cta { animation: ctaPulse 3.2s ease-in-out 4s 3; }
@keyframes ctaPulse { 0%, 100% { box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent); } 50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 25%, transparent); } }

.stage { position: relative; display: flex; align-items: center; gap: 8px; min-height: 0; padding: 14px 10px; }
.book-wrap { position: relative; flex: 1 1 auto; align-self: stretch; min-width: 0; min-height: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.nav-arrow { flex: none; }
.book { margin: 0 auto; filter: drop-shadow(0 22px 40px rgba(0,0,0,.45)); }
.book .page { background: #fff; overflow: hidden; }
.book .page img { width: 100%; height: 100%; object-fit: contain; user-select: none; -webkit-user-drag: none; pointer-events: none; background: #fff; }
.stf__parent { margin: 0 auto; }

.book-loading { position: absolute; inset: 0; display: grid; place-items: center; z-index: 2; pointer-events: none; transition: opacity .35s; }
.book-loading img { max-height: 92%; max-width: 46%; box-shadow: 0 22px 40px rgba(0,0,0,.45); }
.book-loading .spinner { position: absolute; width: 38px; height: 38px; border-radius: 50%; border: 3px solid rgba(255,255,255,.25); border-top-color: #fff; animation: spin .8s linear infinite; }
.ready .book-loading { opacity: 0; }
@keyframes spin { to { transform: rotate(360deg); } }

.nav-arrow { width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.08); color: #fff; display: grid; place-items: center; cursor: pointer; transition: background .15s, transform .15s; z-index: 3; }
.nav-arrow:hover { background: rgba(255,255,255,.18); transform: scale(1.05); }
.nav-arrow svg { width: 26px; height: 26px; }
.nav-arrow:disabled { opacity: .25; cursor: default; transform: none; }

.toolbar { display: flex; justify-content: center; align-items: center; gap: 6px; flex-wrap: wrap; padding: 8px 12px calc(10px + env(safe-area-inset-bottom)); }
.tb-group { display: flex; align-items: center; gap: 2px; background: rgba(8, 18, 30, .45); border: 1px solid rgba(255,255,255,.1); border-radius: 999px; padding: 4px; backdrop-filter: blur(10px); }
.tool { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; border: 0; background: transparent; color: #fff; cursor: pointer; text-decoration: none; }
.tool:hover, .tool.on { background: rgba(255,255,255,.14); }
.page-ind { display: flex; align-items: center; gap: 6px; font-size: 14px; color: rgba(255,255,255,.8); padding: 0 6px; }
.page-ind input { width: 64px; text-align: center; font: 600 14px var(--font); color: #fff; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); border-radius: 8px; padding: 6px 4px; }

/* Paneles inferiores */
.sheet { position: fixed; left: 50%; bottom: 74px; transform: translateX(-50%); width: min(920px, calc(100% - 24px)); max-height: min(70dvh, 560px); overflow: auto; background: #fff; color: var(--ink); border-radius: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.45); padding: 6px 18px 18px; z-index: 40; animation: rise .22s cubic-bezier(.2,.8,.2,1); }
.sheet[hidden] { display: none; }
.sheet-head { position: sticky; top: 0; background: #fff; display: flex; align-items: center; justify-content: space-between; padding: 10px 0; z-index: 1; }
.sheet-head h2 { margin: 0; font-size: 16px; color: var(--brand); }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 14px; }
.thumbs button { border: 0; background: none; padding: 0; cursor: pointer; text-align: center; font: 600 12px var(--font); color: var(--muted); }
.thumbs img { width: 100%; aspect-ratio: var(--ratio, .707); object-fit: cover; border-radius: 4px; box-shadow: 0 4px 12px rgba(16,32,52,.18); margin-bottom: 6px; border: 2px solid transparent; transition: transform .15s; }
.thumbs button:hover img { transform: translateY(-2px); }
.thumbs button.cur img { border-color: var(--accent); }
.thumbs button.locked img { filter: blur(3px) grayscale(.5); opacity: .7; }
.search-input { width: 100%; font: 400 16px var(--font); padding: 12px 14px; border: 1px solid #cfd6de; border-radius: 12px; margin-bottom: 10px; }
.results { list-style: none; margin: 0; padding: 0; }
.results li button { width: 100%; text-align: left; border: 0; background: none; padding: 12px 8px; border-bottom: 1px solid var(--line); cursor: pointer; font: 400 14px/1.5 var(--font); color: var(--ink); display: grid; grid-template-columns: 64px 1fr; gap: 12px; }
.results li button:hover { background: var(--bg); }
.results b { color: var(--accent); }
.results .pg { font-weight: 700; color: var(--brand); }
.results .none { color: var(--muted); padding: 14px 4px; }
.share-link { display: flex; gap: 8px; margin-bottom: 10px; }
.share-link input { flex: 1; min-width: 0; font: 400 14px var(--font); padding: 10px 12px; border: 1px solid #cfd6de; border-radius: 10px; background: var(--bg); }
.share-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.share-grid a, .share-grid button { display: grid; justify-items: center; gap: 6px; font: 600 12px var(--font); color: var(--ink); text-decoration: none; cursor: pointer; border: 0; background: none; padding: 8px 0; border-radius: 12px; }
.share-grid a:hover, .share-grid button:hover { background: var(--bg); }
.sico { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; color: #fff; }
.sico.wa { background: #1faa59; } .sico.li { background: #0a66c2; } .sico.em { background: var(--brand); } .sico.nt { background: var(--accent); }

/* Zoom */
.zoom { position: fixed; inset: 0; z-index: 50; background: rgba(6, 12, 20, .94); display: grid; grid-template-rows: auto 1fr; }
.zoom[hidden] { display: none; }
.zoom-bar { display: flex; justify-content: center; align-items: center; gap: 8px; padding: 10px; color: #fff; font-weight: 600; font-size: 14px; }
.zoom-bar span { min-width: 56px; text-align: center; }
.zoom-scroll { overflow: auto; touch-action: pan-x pan-y pinch-zoom; cursor: grab; }
.zoom-scroll.drag { cursor: grabbing; }
.zoom-inner { display: flex; justify-content: center; gap: 0; padding: 12px; margin: 0 auto; width: max-content; min-width: 100%; }
.zoom-inner img { height: auto; box-shadow: 0 10px 40px rgba(0,0,0,.6); user-select: none; -webkit-user-drag: none; }

/* Responsivo */
@media (max-width: 760px) {
  .topbar { gap: 10px; padding: 8px 12px; }
  .brand img { height: 26px; }
  .doc-title { font-size: 13px; }
  .cta span { display: none; }
  .cta { width: 42px; padding: 0; }
  .nav-arrow { display: none; }
  .stage { padding: 8px 6px; }
  .toolbar { gap: 4px; padding: 6px 6px calc(8px + env(safe-area-inset-bottom)); }
  .tool { width: 36px; height: 36px; }
  .tb-group { padding: 2px; }
  .page-ind { padding: 0 2px; font-size: 13px; }
  [data-fullscreen] { display: none; }
  .pager [data-first], .pager [data-last] { display: none; }
  .page-ind input { width: 46px; }
  .sheet { bottom: 64px; }
  .share-grid { grid-template-columns: repeat(4, 1fr); }
  .book-loading img { max-width: 86%; }
}
@supports (-webkit-touch-callout: none) { .hide-ios { display: none; } }