@font-face {
  font-family: "Area";
  src: url("../assets/fonts/Area-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Area";
  src: url("../assets/fonts/Area-Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --reader-black: #141414;
  --reader-white: #f5f5f2;
  --reader-muted: rgba(255, 255, 255, .46);
  --reader-line: rgba(255, 255, 255, .13);
  --reader-line-active: rgba(255, 255, 255, .72);
  --reader-accent: #59ffa7;
  --reader-header: 62px;
  --reader-footer: 58px;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--reader-black);
  color: var(--reader-white);
  font-family: "Area", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

button,
input {
  font: inherit;
}

button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
}

.official-reader {
  --reader-accent: var(--issue-color, #59ffa7);
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-rows: var(--reader-header) minmax(0, 1fr) var(--reader-footer);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--reader-black);
  isolation: isolate;
}

.official-reader__header,
.official-reader__footer {
  position: relative;
  z-index: 80;
  display: grid;
  align-items: center;
  padding-inline: 20px;
  transition: opacity 220ms ease, transform 320ms var(--ease-out);
}

.official-reader__header {
  grid-template-columns: 1fr auto 1fr;
}

.official-reader__footer {
  grid-template-columns: minmax(78px, auto) minmax(120px, 1fr) auto;
  gap: 20px;
}

.official-reader__home {
  position: relative;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  width: 116px;
  height: 28px;
  color: var(--reader-white);
  text-decoration: none;
}

.official-reader__home::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--issue-color, #fff);
  -webkit-mask: url("../assets/images/submarine-logo-white.svg") center / contain no-repeat;
  mask: url("../assets/images/submarine-logo-white.svg") center / contain no-repeat;
  transition: background-color 160ms ease;
}

.official-reader__home:hover::before {
  background: #fff;
}

.official-reader__logo {
  display: block;
  width: 100%;
  height: auto;
  opacity: 0;
}

.official-reader__meta {
  justify-self: center;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 12px;
  line-height: 1;
  letter-spacing: .01em;
  white-space: nowrap;
}

.official-reader__meta-year {
  color: var(--reader-muted);
}

.official-reader__close {
  justify-self: end;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, .58);
  text-decoration: none;
  transition: color 160ms ease, opacity 160ms ease;
}

.official-reader__close:hover,
.official-reader__close:focus-visible {
  color: #fff;
}

.official-reader__close svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
  stroke-linecap: square;
}

.official-reader__home:focus-visible,
.official-reader__close:focus-visible,
.official-reader__zoom-button:focus-visible,
.official-reader__zoom-value:focus-visible,
.official-reader__fullscreen:focus-visible {
  outline: 1px solid rgba(255, 255, 255, .72);
  outline-offset: 3px;
}

.reader-stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--reader-black);
  touch-action: none;
}

.pageflip-host {
  position: relative;
  display: grid;
  place-items: center;
  width: calc(100vw - 116px);
  height: calc(100dvh - var(--reader-header) - var(--reader-footer) - 20px);
  max-width: 1760px;
  max-height: 1120px;
}

.reader-stage[data-mode="landscape"] .pageflip-host {
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
  transform-origin: 50% 50%;
  will-change: transform;
  touch-action: none;
}

.reader-stage[data-mode="landscape"] .pageflip-host *,
.reader-stage[data-mode="landscape"] .pageflip-host .stf__item {
  cursor: inherit;
}

.reader-stage[data-mode="landscape"] .pageflip-host.is-zoomed {
  cursor: grab;
}

.reader-stage[data-mode="landscape"] .pageflip-host.is-zoomed.is-panning {
  cursor: grabbing;
}

.pageflip-book {
  width: 100%;
  height: 100%;
}

.pageflip-page {
  position: relative;
  overflow: hidden;
  background: #f4f4f0;
}

.pageflip-page canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #f4f4f0;
}

.pageflip-page::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .008);
}

.official-reader__nav {
  position: absolute;
  z-index: 60;
  top: 50%;
  bottom: auto;
  width: 52px;
  height: 104px;
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: .42;
  transform: translateY(-50%);
  transition: opacity 180ms ease;
}

.official-reader__nav--prev { left: 4px; }
.official-reader__nav--next { right: 4px; }

.reader-stage[data-mode="landscape"]:hover .official-reader__nav:not(:disabled) {
  opacity: .84;
}

.reader-stage[data-mode="landscape"] .official-reader__nav:hover:not(:disabled) {
  opacity: 1;
}

.official-reader__nav:disabled {
  pointer-events: none;
  opacity: 0 !important;
}

.official-reader__nav svg {
  width: 21px;
  height: 21px;
  stroke: rgba(255, 255, 255, .82);
  stroke-width: 1.25;
  fill: none;
}

.official-reader__page {
  min-width: 78px;
  font-size: 12px;
  line-height: 1;
  color: var(--reader-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.official-reader__page strong {
  color: var(--reader-white);
  font-weight: 400;
}

.official-reader__progress,
.official-reader__progress:focus,
.official-reader__progress:active {
  outline: none !important;
  box-shadow: none !important;
  border: 0 !important;
  -webkit-tap-highlight-color: transparent;
}

.official-reader__progress {
  width: 100%;
  height: 22px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

.official-reader__progress:focus-visible {
  outline: 1px solid rgba(255, 255, 255, .42) !important;
  outline-offset: 4px !important;
  border-radius: 999px;
}

.official-reader__progress::-moz-focus-outer {
  border: 0;
}

.official-reader__progress::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--reader-line);
}

.official-reader__progress::-webkit-slider-thumb {
  width: 8px;
  height: 8px;
  margin-top: -3.5px;
  appearance: none;
  border: 0;
  border-radius: 50%;
  background: var(--reader-white);
  transition: transform 140ms ease, background 140ms ease;
}

.official-reader__progress:hover::-webkit-slider-thumb {
  transform: scale(1.18);
  background: var(--issue-color, var(--reader-accent));
}

.official-reader__progress::-moz-range-track {
  height: 1px;
  background: var(--reader-line);
}

.official-reader__progress::-moz-range-thumb {
  width: 8px;
  height: 8px;
  border: 0;
  border-radius: 50%;
  background: var(--reader-white);
}

.official-reader__progress:hover::-moz-range-thumb {
  background: var(--issue-color, var(--reader-accent));
}

.official-reader__tools {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  height: 36px;
}

.official-reader__zoom {
  display: inline-flex;
  align-items: center;
  height: 32px;
  margin-right: 7px;
  padding-right: 7px;
  border-right: 1px solid rgba(255, 255, 255, .12);
}

.official-reader__zoom-button,
.official-reader__zoom-value {
  height: 30px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: rgba(255, 255, 255, .55);
  transition: color 150ms ease, opacity 150ms ease;
}

.official-reader__zoom-button {
  width: 28px;
  font-size: 17px;
  line-height: 1;
  font-weight: 400;
}

.official-reader__zoom-value {
  min-width: 46px;
  padding-inline: 4px;
  font-size: 10px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.official-reader__zoom-button:hover:not(:disabled),
.official-reader__zoom-value:hover {
  color: rgba(255, 255, 255, .96);
}

.official-reader__zoom-button:disabled {
  opacity: .22;
  cursor: default;
}

.official-reader__fullscreen {
  justify-self: end;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-left: 0;
  cursor: pointer;
  opacity: .72;
  transition: opacity 160ms ease;
}

.official-reader__fullscreen:hover {
  opacity: 1;
}

.official-reader__fullscreen svg {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  stroke-width: 1.4;
  fill: none;
}

.reader-loading,
.reader-error {
  position: absolute;
  z-index: 90;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--reader-black);
}

.reader-error {
  padding: 28px;
  transition: opacity 360ms ease, visibility 360ms ease;
}

.reader-loading.is-hidden,
.reader-error[hidden] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.reader-error__inner {
  width: min(420px, 100%);
  text-align: center;
}

.reader-loading__mark {
  width: 24px;
  height: 24px;
  margin: 0 auto 18px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-top-color: rgba(255, 255, 255, .82);
  border-radius: 50%;
  animation: reader-spin .8s linear infinite;
}

.reader-loading p,
.reader-error p {
  margin: 0;
  font-size: 11px;
  line-height: 1.4;
  color: var(--reader-muted);
}

.reader-error a {
  display: inline-block;
  margin-top: 16px;
  color: var(--reader-white);
  font-size: 11px;
}

/* Approved mobile reader. */
.prototype-mobile {
  position: relative;
  display: none;
  flex: 0 0 auto;
  overflow: visible;
  touch-action: none;
  will-change: width, height;
}

.prototype-mobile-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #f4f4f0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .13), 0 1px 5px rgba(0, 0, 0, .08);
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.prototype-mobile-layer canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #f4f4f0;
}

.prototype-mobile-target { opacity: 0; }

.reader-stage[data-mode="portrait"] .prototype-mobile { display: block; }
.reader-stage[data-mode="portrait"] .pageflip-host { display: none !important; }
.reader-stage[data-mode="landscape"] .prototype-mobile { display: none !important; }

.prototype-mobile-zoom-badge {
  position: absolute;
  z-index: 14;
  top: 10px;
  right: 10px;
  min-width: 38px;
  padding: 7px 8px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .66);
  color: #fff;
  font-size: 10px;
  line-height: 1;
  text-align: center;
  letter-spacing: .02em;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity 160ms ease, transform 200ms var(--ease-out);
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.prototype-mobile-zoom-badge.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.prototype-mobile-zoom-hint {
  position: absolute;
  z-index: 14;
  left: 50%;
  bottom: 12px;
  transform: translate(-50%, 0);
  padding: 7px 10px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .66);
  color: rgba(255, 255, 255, .88);
  font-size: 9px;
  line-height: 1;
  letter-spacing: .04em;
  white-space: nowrap;
  opacity: 1;
  transition: opacity 300ms ease, transform 380ms var(--ease-out);
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.prototype-mobile-zoom-hint.is-hidden {
  opacity: 0;
  transform: translate(-50%, 4px);
}

.prototype-mobile-hires-tile {
  position: absolute;
  z-index: 11;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 80ms linear;
}

.prototype-mobile-hires-tile.is-visible {
  opacity: 1;
}

/* Cover/back-cover transition sheet. */
.official-reader__edge-transition {
  position: absolute;
  z-index: 58;
  pointer-events: none;
  perspective: 2200px;
  transform: translateZ(0);
}

.official-reader__edge-mask,
.official-reader__edge-static,
.official-reader__edge-sheet {
  position: absolute;
  top: 0;
  width: var(--edge-page-width);
  height: 100%;
}

.official-reader__edge-mask {
  z-index: 1;
  background: var(--reader-black);
}

.official-reader__edge-static {
  z-index: 2;
  overflow: hidden;
  background: #f4f4f0;
}

.official-reader__edge-mask--left,
.official-reader__edge-static--left {
  left: 0;
}

.official-reader__edge-mask--right,
.official-reader__edge-static--right {
  right: 0;
}

.official-reader__edge-static canvas,
.official-reader__edge-face canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.official-reader__edge-sheet {
  z-index: 3;
  transform-style: preserve-3d;
  transition: transform var(--edge-duration) cubic-bezier(.22, .72, .22, 1);
  will-change: transform;
}

.official-reader__edge-sheet--left {
  left: 0;
  transform-origin: 100% 50%;
}

.official-reader__edge-sheet--right {
  right: 0;
  transform-origin: 0 50%;
}

.official-reader__edge-face {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #f4f4f0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

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

.official-reader__edge-sheet::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 18px rgba(0, 0, 0, .035);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* PDF.js viewport tile, visible only after desktop zoom/pan settles. */
.official-reader__desktop-hires {
  position: absolute;
  z-index: 55;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 80ms linear, visibility 80ms linear;
}

.official-reader__desktop-hires.is-visible {
  opacity: 1;
  visibility: visible;
}

.official-reader.is-fullscreen.is-ui-hidden .official-reader__header {
  opacity: 0;
  transform: translateY(-100%);
}

.official-reader.is-fullscreen.is-ui-hidden .official-reader__footer {
  opacity: 0;
  transform: translateY(100%);
}

@keyframes reader-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 820px) {
  :root {
    --reader-header: 56px;
    --reader-footer: 54px;
  }

  .official-reader__header,
  .official-reader__footer {
    padding-inline: 14px;
  }

  .official-reader__home {
    width: 104px;
  }

  .official-reader__meta {
    font-size: 11px;
  }

  .reader-stage[data-mode="portrait"] {
    padding: 8px 12px;
    overflow: hidden;
  }

  .official-reader__footer {
    grid-template-columns: minmax(66px, auto) minmax(70px, 1fr);
    gap: 18px;
  }

  .official-reader__tools,
  .official-reader__fullscreen,
  .official-reader__nav {
    display: none;
  }

  .official-reader__page {
    min-width: 66px;
  }
}

@media (max-width: 440px) {
  .official-reader__header {
    grid-template-columns: 1fr auto 1fr;
  }

  .official-reader__meta {
    justify-self: center;
  }

  .official-reader__close {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .official-reader__header,
  .official-reader__footer,
  .reader-loading {
    transition-duration: 1ms !important;
  }

  .reader-loading__mark {
    animation-duration: 1.8s;
  }
}