@font-face {
  font-family: "Barlow Condensed";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../../fonts/barlow-condensed-700.woff2") format("woff2");
}

@font-face {
  font-family: "Barlow Condensed";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../../fonts/barlow-condensed-800.woff2") format("woff2");
}

:root {
  --paper: #e9e1d0;
  --reading-paper: #f7f1e4;
  --ink: #11110f;
  --warning: #b4261e;
  --faded-ink: #5f5b52;
  --rule: rgba(17, 17, 15, 0.3);
}

* {
  box-sizing: border-box;
  cursor: default;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, sans-serif;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: 4;
  content: "";
  pointer-events: none;
  background-image: radial-gradient(
    rgba(17, 17, 15, 0.3) 0.55px,
    transparent 0.7px
  );
  background-size: 4px 4px;
  mix-blend-mode: multiply;
  opacity: 0.13;
}

button,
select,
a {
  color: inherit;
  font: inherit;
}

button,
select {
  border: 1px solid var(--ink);
  border-radius: 0;
  background: transparent;
}

button:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--warning);
  outline-offset: 0.2rem;
}

.reader-app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: 100%;
  height: 100svh;
}

.reader-header {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: center;
  padding: 0.75rem clamp(0.75rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
}

.archive-link,
.eyebrow,
.reader-tools,
.reader-footer,
.error-code {
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.archive-link {
  color: inherit;
  font-size: 1rem;
  text-decoration: none;
  white-space: nowrap;
}

.book-identity {
  min-width: 0;
}

.eyebrow {
  display: block;
  color: var(--warning);
  font-size: 0.7rem;
  line-height: 1;
}

.book-identity h1 {
  overflow: hidden;
  margin: 0.1rem 0 0;
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.reader-tools {
  display: flex;
  align-items: stretch;
  gap: 0.4rem;
}

.reader-tools button,
.reader-tools select {
  height: 2.5rem;
  padding: 0 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.reader-tools button:hover,
.reader-tools button:focus-visible {
  border-color: var(--warning);
  background: var(--warning);
  color: var(--paper);
}

.chapter-picker select {
  width: min(18rem, 25vw);
  max-width: 100%;
  background: var(--paper);
}

.reader-surface {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: clamp(2.75rem, 6vw, 4.5rem) minmax(0, 1fr)
    clamp(2.75rem, 6vw, 4.5rem);
  min-height: 0;
  padding: clamp(0.5rem, 1.5vw, 1rem) 0;
}

.viewer {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--reading-paper);
  box-shadow: 0 0.75rem 2rem rgba(17, 17, 15, 0.09);
}

.viewer iframe {
  background: var(--reading-paper);
}

.reader-status {
  position: absolute;
  inset: 50% auto auto 50%;
  width: min(28rem, calc(100% - 2rem));
  margin: 0;
  color: var(--faded-ink);
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
}

.reader-status[hidden] {
  display: none;
}

.page-button {
  border: 0;
  background: transparent;
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 800;
}

.page-button:hover,
.page-button:focus-visible {
  color: var(--warning);
}

.reader-footer {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 1rem;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.55rem clamp(0.75rem, 2vw, 1.5rem);
  border-top: 1px solid var(--ink);
  background: var(--paper);
  color: var(--faded-ink);
  font-size: 0.75rem;
}

#chapter-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-footer a {
  color: var(--warning);
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.16em;
}

.reader-error {
  align-self: center;
  width: min(50rem, calc(100% - 2rem));
  margin: 0 auto;
}

.error-code {
  margin: 0 0 0.5rem;
  color: var(--warning);
}

.reader-error h2 {
  margin: 0;
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(3.5rem, 11vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.82;
  text-transform: uppercase;
}

.reader-error p:not(.error-code) {
  max-width: 38rem;
  color: var(--faded-ink);
  line-height: 1.55;
}

.reader-error a {
  color: var(--warning);
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 760px) {
  .reader-header {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.65rem 1rem;
  }

  .reader-tools {
    grid-column: 1 / -1;
  }

  .chapter-picker {
    flex: 1;
    min-width: 0;
  }

  .chapter-picker select {
    width: 100%;
  }

  .reader-surface {
    grid-template-columns: 2.5rem minmax(0, 1fr) 2.5rem;
    padding: 0.4rem 0;
  }

  .reader-footer {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  #save-status {
    display: none;
  }
}

@media (max-width: 430px) {
  .reader-header {
    padding-inline: 0.6rem;
  }

  .reader-surface {
    grid-template-columns: 2.1rem minmax(0, 1fr) 2.1rem;
  }

  .page-button {
    padding: 0;
  }

  .reader-footer {
    padding-inline: 0.6rem;
  }
}