:root {
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.08);
  --text: #e7eefc;
  --muted: rgba(231, 238, 252, 0.75);
  --border: rgba(255, 255, 255, 0.12);
  --accent: #7dd3fc;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 20% 10%, rgba(125, 211, 252, 0.14), transparent 60%),
    radial-gradient(900px 600px at 70% 30%, rgba(167, 139, 250, 0.16), transparent 60%),
    var(--bg);
  color: var(--text);
}

a { color: var(--accent); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  backdrop-filter: blur(10px);
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 920px) {
  .row { grid-template-columns: 2fr 1fr; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  gap: 8px;
  user-select: none;
}
.btn:hover { background: rgba(255, 255, 255, 0.10); }
.btn.primary { border-color: rgba(125, 211, 252, 0.35); }

.pager {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.pager-input {
  width: 54px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  padding: 0;
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.pager #pageTotal {
  display: inline-block;
  min-width: 64px;
  text-align: center;
}

.zoom {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.zoom input[type="range"] {
  width: 160px;
}

.speed {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.speed input[type="range"] {
  width: 140px;
}

.zoom-pane {
  height: 100%;
  width: 100%;
  transform: translate3d(0, 0, 0) scale(1);
  transform-origin: center center;
  cursor: default;
  touch-action: none;
}

.zoom-pane.zoomed {
  cursor: grab;
}

.zoom-pane.zoomed.dragging {
  cursor: grabbing;
}

.share-row {
  display: grid;
  gap: 10px;
}

.share-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.55);
}

.share-modal.open {
  display: grid;
}

.share-panel.card {
  width: min(760px, 100%);
  background: rgba(11, 18, 32, 0.96);
  backdrop-filter: none;
}

.share-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
  align-items: center;
}

.share-actions-left {
  flex: 0 0 auto;
}

.share-actions-right {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: nowrap;
  align-items: center;
  margin-left: auto;
  min-width: 0;
}

@media (max-width: 760px) {
  .share-actions {
    flex-wrap: wrap;
  }
  .share-actions-right {
    flex-wrap: wrap;
    justify-content: flex-start;
    margin-left: 0;
    width: 100%;
  }
}

.share-row-header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.share-row-toggle {
  display: flex;
  gap: 10px;
  align-items: center;
}

.share-row-fields {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.share-url {
  flex: 1;
  min-width: 220px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

/* "Full window" mode (not browser fullscreen): remove outer padding/max-width so the viewer fills the viewport */
body.mv-fullwindow .container {
  max-width: none;
  padding: 0;
}

body.mv-fullwindow .viewer-shell {
  height: 100vh;
}

body.mv-fullwindow .viewer-toolbar.card,
body.mv-fullwindow .footer.card,
body.mv-fullwindow .spread-wrap.card {
  border-radius: 0;
}

body.mv-fullwindow .viewer-toolbar.card,
body.mv-fullwindow .footer.card {
  border-left: 0;
  border-right: 0;
}

body.mv-fullwindow .spread-wrap.card {
  border-left: 0;
  border-right: 0;
  border-top: 0;
  border-bottom: 0;
  padding: 0;
}

body.mv-fullwindow .spread-stage {
  height: 100%;
}

body.mv-fullwindow .mvpf-book {
  min-height: 0;
  height: 100%;
}

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.mv-chart {
  display: block;
}

.mv-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.mv-legend-item {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.mv-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  display: inline-block;
}

.mv-heat {
  display: grid;
  gap: 6px;
  min-width: max-content;
}

.mv-heat-head,
.mv-heat-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 26px;
  align-items: center;
  gap: 4px;
}

.mv-heat-cell {
  height: 22px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mv-heat-left {
  width: 86px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.04);
}

.mv-heat-day {
  background: rgba(255, 255, 255, 0.04);
}

.pub {
  display: grid;
  grid-template-rows: 150px auto;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}
.pub img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.04);
}
.pub .info { padding: 12px; display: grid; gap: 6px; }
.pub .title { font-weight: 650; }

/* Viewer */
.viewer-shell {
  height: calc(100vh - 48px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
}

.viewer-toolbar {
  position: relative;
  z-index: 200;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.spread-wrap {
  position: relative;
  z-index: 1;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.viewer-controls {
  padding: 12px 16px;
  display: grid;
  gap: 12px;
}

.spread-scrub input[type="range"] {
  width: 100%;
}

.viewer-controls-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
}

.viewer-controls-left {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}

.viewer-controls-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.viewer-controls-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  .viewer-controls-grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .viewer-controls-left {
    justify-content: center;
  }

  .viewer-controls-right {
    justify-content: center;
  }
}

.edge-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: clamp(140px, 33%, 260px);
  width: 54px;
  border-radius: 14px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  z-index: 300;
  display: grid;
  place-items: center;
  user-select: none;
  backdrop-filter: none;
}

.edge-btn:hover {
  background: rgba(0, 0, 0, 0.10);
}

.edge-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.edge-btn span {
  font-size: 26px;
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.75);
}

.edge-left {
  left: 10px;
}

.edge-right {
  right: 10px;
}

.spread-stage {
  position: relative;
  height: 100%;
  perspective: 1600px;
}

.spread {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
}

@media (max-width: 760px) {
  .spread { grid-template-columns: 1fr; }
}

.page {
  position: relative;
  background: rgba(0, 0, 0, 0.25);
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.page img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.page .blank {
  color: rgba(255, 255, 255, 0.35);
  font-size: 14px;
}

.layer.top {
  z-index: 2;
}

.layer.under {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0;
  pointer-events: none;
}

.layer.under .hotspots {
  display: none;
}

.hotspots {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hotspot {
  position: absolute;
  pointer-events: auto;
  border-radius: 8px;
  border: 1px solid rgba(125, 211, 252, 0.35);
  background: rgba(125, 211, 252, 0.10);
}
.hotspot:hover {
  background: rgba(125, 211, 252, 0.18);
}

.flip-anim {
  transition: transform var(--nudge-ms, 200ms) ease;
}
.flip-anim.forward {
  transform: translateX(-12px);
}
.flip-anim.backward {
  transform: translateX(12px);
}

.turn-sheet {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  z-index: 3;
  transform-style: preserve-3d;
  pointer-events: none;
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  transition: transform var(--turn-ms, 650ms) cubic-bezier(0.2, 0.85, 0.2, 1);
}

.turn-sheet.hidden {
  display: none;
}

.turn-sheet.right {
  left: 50%;
  transform-origin: left center;
  transform: rotateY(0deg);
}

.turn-sheet.left {
  left: 0;
  transform-origin: right center;
  transform: rotateY(0deg);
}

.turn-sheet.right.turn-forward {
  transform: rotateY(-180deg);
}

.turn-sheet.left.turn-backward {
  transform: rotateY(180deg);
}

.turn-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  background: rgba(0, 0, 0, 0.22);
}

.turn-face img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.turn-face.back {
  transform: rotateY(180deg);
}

.turn-gloss {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.45),
    rgba(0, 0, 0, 0.10) 35%,
    rgba(255, 255, 255, 0.12) 55%,
    rgba(0, 0, 0, 0.25) 80%,
    rgba(0, 0, 0, 0.55)
  );
  opacity: 0.55;
  mix-blend-mode: soft-light;
  pointer-events: none;
  transform: translateZ(1px);
}

.turn-sheet.right.turn-forward .turn-gloss {
  opacity: 0.65;
}

.turn-sheet.left.turn-backward .turn-gloss {
  opacity: 0.65;
}

.fade-swap {
  opacity: 0;
  transition: opacity var(--fade-ms, 160ms) ease;
}

.fade-swap.done {
  opacity: 1;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

/* Viewer (PageFlip engine) */
.mvpf-book {
  width: 100%;
  height: 100%;
  min-height: 0;
}

.mvpf-page {
  width: 100%;
  height: 100%;
  background: transparent;
  padding: 0 !important;
  position: relative;
  overflow: hidden;
}

.mvpf-inner {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: transparent;
}

.mvpf-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

/* PageFlip (StPageFlip) tends to add a center gutter/padding around pages.
   Force pages to sit flush with no gap between left/right. */
.mvpf-book .stf__wrapper,
.mvpf-book .stf__block {
  padding: 0 !important;
}

.mvpf-book .stf__block {
  gap: 0 !important;
}

.mvpf-book .stf__item,
.mvpf-book .stf__page {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
}

.mvpf-book .stf__page {
  box-shadow: none !important;
}