/* public/css/jmd-pdf-viewer.css
 *
 * JMD in-house PDF viewer (js/shared/jmd-pdf-viewer.js). .jpdf-* namespace.
 * Themed with the site's tokens; animated open/close + per-page fade-in.
 * Honors prefers-reduced-motion.
 */

/* ─── Overlay + modal ────────────────────────────────────────────────── */
.jpdf-overlay {
  position: fixed; inset: 0; z-index: 9200;
  background: rgba(8, 27, 22, .72);
  -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.jpdf-overlay.show { display: flex; animation: jpdfFadeIn .22s ease both; }
.jpdf-overlay.closing { animation: jpdfFadeOut .18s ease both; }

.jpdf-modal {
  width: 980px; max-width: 100%; height: 92vh; max-height: 100%;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--r-lg, 12px); box-shadow: var(--shadow-xl, 0 24px 64px rgba(0,0,0,.35));
  display: flex; flex-direction: column; overflow: hidden;
}
.jpdf-overlay.show .jpdf-modal { animation: jpdfRise .26s cubic-bezier(.22,.9,.34,1) both; }
.jpdf-overlay.closing .jpdf-modal { animation: jpdfSink .18s ease both; }

@keyframes jpdfFadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes jpdfFadeOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes jpdfRise { from { opacity: 0; transform: translateY(14px) scale(.975); } to { opacity: 1; transform: none; } }
@keyframes jpdfSink { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateY(10px) scale(.985); } }

html.jpdf-lock, html.jpdf-lock body { overflow: hidden; }

/* ─── Header / toolbar ───────────────────────────────────────────────── */
.jpdf-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 14px; border-bottom: 1px solid var(--border-color);
  background: var(--bg-card); flex-shrink: 0;
}
.jpdf-title-wrap { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.jpdf-title {
  font-weight: 700; font-size: var(--fs-body, 15px); color: var(--text-primary);
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.jpdf-pageind {
  font-size: var(--fs-caption, 12px); color: var(--text-muted);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.jpdf-tools { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.jpdf-tool {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 10px; border-radius: var(--r-md, 8px);
  border: 1px solid var(--border-color); background: var(--bg-tertiary);
  color: var(--text-primary); cursor: pointer; text-decoration: none;
  font-family: inherit; font-size: var(--fs-sm, 13px); font-weight: 700;
  transition: background .15s ease, border-color .15s ease, transform .12s ease;
}
.jpdf-tool:hover { border-color: var(--border-strong, var(--border-color)); filter: brightness(1.05); }
.jpdf-tool:active { transform: scale(.94); }
.jpdf-tool svg { width: 17px; height: 17px; }
.jpdf-zoom-pct { min-width: 56px; font-variant-numeric: tabular-nums; }
.jpdf-tool-sep { width: 1px; height: 22px; background: var(--border-color); margin: 0 4px; }

/* ─── Body / page stack ──────────────────────────────────────────────── */
.jpdf-body {
  flex: 1; min-height: 0; overflow: auto; position: relative;
  background: var(--bg-secondary);
  overscroll-behavior: contain; scroll-behavior: smooth;
}
.jpdf-pages {
  display: flex; flex-direction: column; align-items: center;
  gap: 18px; padding: 24px;
}
.jpdf-page {
  position: relative; background: #fff; border-radius: 3px;
  box-shadow: 0 2px 14px rgba(8, 27, 22, .18), 0 0 0 1px rgba(8, 27, 22, .06);
  overflow: hidden; flex-shrink: 0;
  animation: jpdfPageIn .3s ease both;
}
@keyframes jpdfPageIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.jpdf-canvas { display: block; width: 100%; height: 100%; opacity: 0; transition: opacity .25s ease; }
.jpdf-canvas.in { opacity: 1; }
.jpdf-page-err {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: var(--fs-sm, 13px);
}

/* ─── Loading / error state ──────────────────────────────────────────── */
.jpdf-loading {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  color: var(--text-secondary); font-size: var(--fs-sm, 13px); font-weight: 600;
  background: var(--bg-secondary); z-index: 2;
  transition: opacity .25s ease;
}
.jpdf-loading.hide { opacity: 0; pointer-events: none; }
.jpdf-loading.error { opacity: 1; pointer-events: auto; }
.jpdf-spinner {
  width: 30px; height: 30px; border-radius: 50%;
  border: 3px solid var(--border-color); border-top-color: var(--accent-cyan, #2B7A78);
  animation: jpdfSpin .8s linear infinite;
}
@keyframes jpdfSpin { to { transform: rotate(360deg); } }
.jpdf-loading.error .jpdf-spinner { display: none; }
.jpdf-fallback {
  color: var(--accent-cyan, #2B7A78); font-weight: 700; text-decoration: underline;
  min-height: 44px; display: inline-flex; align-items: center;
}

/* ─── Mobile ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .jpdf-overlay { padding: 0; }
  .jpdf-modal { height: 100%; border-radius: 0; border: none; }
  .jpdf-head { flex-wrap: wrap; }
  .jpdf-tool { min-width: 44px; height: 44px; }
  .jpdf-pages { padding: 12px; gap: 12px; }
  .jpdf-pageind { display: none; }
}

/* ─── Reduced motion ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .jpdf-overlay.show, .jpdf-overlay.closing,
  .jpdf-overlay.show .jpdf-modal, .jpdf-overlay.closing .jpdf-modal,
  .jpdf-page { animation: none; }
  .jpdf-canvas { opacity: 1; transition: none; }
  .jpdf-body { scroll-behavior: auto; }
  .jpdf-spinner { animation-duration: 1.6s; }
}