/* ── FLIPBOOK OVERLAY ── */
#flipbook-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: #14120f;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#flipbook-overlay.open { display: flex; }

#flipbook-title-bar {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'EB Garamond', serif;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #4a4030;
  z-index: 9003;
  pointer-events: none;
  white-space: nowrap;
}

#flipbook-close {
  position: fixed;
  top: 14px;
  right: 22px;
  background: transparent;
  color: #4a4030;
  border: 1px solid #2e2820;
  font-family: 'EB Garamond', serif;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 5px 16px;
  cursor: pointer;
  z-index: 9003;
  transition: color .15s, border-color .15s;
}
#flipbook-close:hover { color: var(--cream); border-color: #6a5a40; }

#flipbook-book-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 100%;
  justify-content: center;
  padding: 52px 16px 8px;
  box-sizing: border-box;
  overflow: hidden;
}

#flipbook-spread {
  position: relative;
  width: 92vw;
  max-width: 1400px;
  flex: 1 1 auto;
  min-height: 0;
  box-shadow: 0 0 80px rgba(0,0,0,.96), 0 0 160px rgba(160,120,60,.06);
}

/* Portrait mobile: single page, taller */
@media (max-width: 767px) and (orientation: portrait) {
  #flipbook-book-area { padding: 44px 8px 6px; }
  #flipbook-spread { width: 98vw; }
  .flipbook-controls { margin-top: 8px; gap: 6px; flex-wrap: nowrap; }
  .flipbook-ctrl { font-size: 11px; padding: 5px 10px; letter-spacing: .08em; white-space: nowrap; }
  .flipbook-indicator { font-size: 11px; min-width: 52px; }
  #flipbook-thumbs { display: none; }
}

.flipbook-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.flipbook-ctrl {
  background: transparent;
  color: #6a5a40;
  border: 1px solid #2e2820;
  font-family: 'EB Garamond', serif;
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 6px 18px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.flipbook-ctrl:hover { color: var(--cream); border-color: #6a5a40; }
.flipbook-ctrl:disabled { opacity: .2; cursor: default; }

.flipbook-indicator {
  font-family: 'EB Garamond', serif;
  font-size: 13px;
  letter-spacing: .18em;
  color: #3a3025;
  min-width: 90px;
  text-align: center;
}

#flipbook-thumbs {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding: 12px 4px 2px;
  max-width: min(840px, 92vw);
  scrollbar-width: thin;
  scrollbar-color: #3a2a10 #14120f;
  margin-top: 10px;
}

.fbk-th {
  flex: 0 0 auto;
  width: 46px;
  cursor: pointer;
  border: 1px solid transparent;
  background: #1e1b16;
  position: relative;
}
.fbk-th:hover { border-color: #3a2a10; }
.fbk-th.ac { border-color: var(--accent); }

.fbk-thn {
  position: absolute;
  bottom: 2px;
  right: 3px;
  font-family: 'EB Garamond', serif;
  font-size: 9px;
  color: #333;
  letter-spacing: .05em;
}