/* Continuous page readers for the 2025 HPLT x NLPL Winter School notes. */

:root {
  --ws-reader-bar-height: 72px;
  background: #edf3f5;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--ws-reader-bar-height) + 1rem);
}

body.ws-reader-page {
  --ws-reader-bg: #edf3f5;
  --ws-reader-paper: #fffdf8;
  --ws-reader-paper-muted: #f4f1e9;
  --ws-reader-ink: #202a30;
  --ws-reader-copy: #4b5961;
  --ws-reader-muted: #68757c;
  --ws-reader-rule: rgba(38, 77, 92, 0.26);
  --ws-reader-rule-soft: rgba(38, 77, 92, 0.09);
  --ws-reader-blue: #155e6b;
  --ws-reader-blue-dark: #113f47;
  --ws-reader-red: #a23d34;
  --theme: var(--ws-reader-bg);
  --entry: var(--ws-reader-paper);
  --primary: var(--ws-reader-ink);
  --secondary: var(--ws-reader-muted);
  --content: var(--ws-reader-copy);
  --border: var(--ws-reader-rule);
  background:
    radial-gradient(circle at 14% 3%, rgba(255, 255, 255, 0.94), transparent 30rem),
    radial-gradient(circle at 88% 18%, rgba(162, 61, 52, 0.055), transparent 24rem),
    linear-gradient(180deg, #e8f1f5 0, var(--ws-reader-bg) 28rem, #f7f5ee 100%);
  color: var(--ws-reader-copy);
  color-scheme: light;
  isolation: isolate;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-x: clip;
  padding-top: var(--ws-reader-bar-height);
}

body.ws-reader-page::before {
  background:
    linear-gradient(var(--ws-reader-rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 77, 92, 0.055) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  inset: 0;
  opacity: 0.54;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

.ws-reader-page ::selection {
  background: rgba(21, 94, 107, 0.2);
  color: var(--ws-reader-ink);
}

.ws-reader-page a {
  color: var(--ws-reader-blue);
}

.ws-reader-page a:hover {
  color: var(--ws-reader-red);
}

.ws-reader-page :focus-visible {
  outline: 3px solid var(--ws-reader-blue);
  outline-offset: 3px;
}

.ws-skip-link {
  background: var(--ws-reader-ink);
  border: 1px solid var(--ws-reader-paper);
  border-radius: 0.2rem;
  color: var(--ws-reader-paper) !important;
  font-size: 0.82rem;
  font-weight: 700;
  inset-inline-start: 1rem;
  padding: 0.65rem 0.9rem;
  position: fixed;
  top: 0;
  transform: translateY(calc(-100% - 1rem));
  transition: transform 140ms ease-out;
  z-index: 100;
}

.ws-skip-link:focus,
.ws-skip-link:focus-visible {
  outline-color: var(--ws-reader-paper);
  transform: translateY(0.75rem);
}

.ws-reader-bar {
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  background: rgba(255, 253, 248, 0.93);
  border-bottom: 1px solid var(--ws-reader-rule);
  box-shadow: 0 8px 28px rgba(32, 42, 48, 0.08);
  color: var(--ws-reader-ink);
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 20;
}

.ws-reader-bar-inner {
  align-items: center;
  display: grid;
  gap: 0.75rem clamp(0.8rem, 2.5vw, 2rem);
  grid-template-columns: minmax(0, 1fr) minmax(13rem, 2.35fr) minmax(0, 1fr);
  margin: 0 auto;
  max-width: 1180px;
  min-width: 0;
  padding: 0.7rem clamp(0.85rem, 3vw, 2rem);
}

.ws-reader-back,
.ws-reader-download {
  align-items: center;
  background: transparent;
  border: 1px solid var(--ws-reader-rule);
  border-radius: 0.2rem;
  color: var(--ws-reader-blue-dark) !important;
  display: inline-flex;
  font-size: 0.73rem;
  font-weight: 700;
  gap: 0.38rem;
  justify-content: center;
  letter-spacing: 0.035em;
  line-height: 1.2;
  min-height: 44px;
  padding: 0.48rem 0.7rem;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.ws-reader-back {
  justify-self: start;
}

.ws-reader-back:hover,
.ws-reader-download:hover {
  background: rgba(232, 241, 245, 0.72);
  border-color: rgba(162, 61, 52, 0.54);
  color: var(--ws-reader-red) !important;
}

.ws-reader-heading {
  min-width: 0;
  text-align: center;
}

.ws-reader-speaker {
  color: var(--ws-reader-red);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.105em;
  line-height: 1.25;
  margin: 0 0 0.12rem;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

.ws-reader-heading h1 {
  color: var(--ws-reader-ink);
  display: -webkit-box;
  font-size: clamp(0.94rem, 1.8vw, 1.17rem);
  letter-spacing: -0.022em;
  line-height: 1.2;
  margin: 0;
  overflow: hidden;
  overflow-wrap: anywhere;
  text-wrap: balance;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.ws-reader-tools {
  align-items: center;
  display: flex;
  gap: 0.7rem;
  justify-content: flex-end;
  min-width: 0;
}

.ws-reader-progress {
  color: var(--ws-reader-copy);
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.025em;
  white-space: nowrap;
}

.ws-reader-main {
  margin: 0 auto;
  max-width: 850px;
  min-width: 0;
  overflow-wrap: anywhere;
  padding: clamp(1.5rem, 5vw, 3.25rem) clamp(0.65rem, 4vw, 2rem) 5rem;
  position: relative;
  width: 100%;
}

.ws-reader-intro {
  color: var(--ws-reader-muted);
  font-size: 0.76rem;
  letter-spacing: 0.055em;
  line-height: 1.55;
  margin: 0 auto clamp(1.65rem, 5vw, 3rem);
  max-width: 65ch;
  text-align: center;
  text-transform: uppercase;
  text-wrap: balance;
}

.ws-reader-intro a {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.ws-reader-summary {
  background: rgba(255, 253, 248, 0.82);
  border: 1px solid var(--ws-reader-rule);
  border-top: 3px solid var(--ws-reader-blue);
  box-shadow: 7px 7px 0 rgba(38, 77, 92, 0.07);
  margin: 0 auto clamp(2.3rem, 7vw, 5rem);
  max-width: 780px;
  min-width: 0;
  padding: clamp(1rem, 3vw, 1.45rem);
}

.ws-reader-summary h2 {
  color: var(--ws-reader-ink);
  font-size: clamp(1.12rem, 3vw, 1.5rem);
  letter-spacing: -0.024em;
  line-height: 1.22;
  margin: 0;
  text-wrap: balance;
}

.ws-reader-summary p {
  color: var(--ws-reader-copy);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0.78rem 0 0;
}

.ws-reader-summary ul {
  display: grid;
  gap: 0.48rem 1.2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.ws-reader-summary li {
  border-left: 2px solid rgba(21, 94, 107, 0.42);
  color: var(--ws-reader-copy);
  font-size: 0.79rem;
  line-height: 1.5;
  min-width: 0;
  padding-left: 0.62rem;
}

.ws-reader-pages {
  display: grid;
  gap: clamp(2.2rem, 7vw, 5.25rem);
  list-style: none;
  margin: 0;
  min-width: 0;
  padding: 0;
}

.ws-reader-page-item {
  contain-intrinsic-size: auto min(600px, 60vw);
  content-visibility: auto;
  margin: 0;
  max-width: 100%;
  min-width: 0;
  position: relative;
  scroll-margin-top: calc(var(--ws-reader-bar-height) + 1rem);
}

.ws-reader-sheet {
  margin: 0 auto;
  max-width: 780px;
  min-width: 0;
  position: relative;
  width: 100%;
}

.ws-reader-sheet img {
  background: #fff;
  border: 1px solid rgba(38, 77, 92, 0.2);
  border-radius: 0;
  box-shadow: 0 16px 30px rgba(32, 42, 48, 0.1);
  display: block;
  height: auto;
  margin: 0;
  max-width: 100%;
  object-fit: contain;
  width: 100%;
}

.ws-reader-sheet figcaption {
  color: rgba(75, 89, 97, 0.78);
  font-size: 0.69rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  line-height: 1.4;
  margin-top: 0.58rem;
  text-align: center;
  text-transform: uppercase;
}

.ws-reader-page-item[data-reader-current="true"] .ws-reader-sheet figcaption {
  color: var(--ws-reader-blue-dark);
}

.ws-reader-end {
  align-items: center;
  border-top: 1px solid var(--ws-reader-rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.5rem;
  justify-content: center;
  margin-top: clamp(3.4rem, 9vw, 6.5rem);
  padding-top: 1.5rem;
}

.ws-reader-end a {
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

@media screen and (max-width: 800px) {
  :root {
    --ws-reader-bar-height: 120px;
  }

  .ws-reader-bar-inner {
    gap: 0.48rem 0.75rem;
    grid-template-columns: minmax(0, 1fr) auto;
    padding-block: 0.55rem;
  }

  .ws-reader-heading {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .ws-reader-back {
    grid-column: 1;
    grid-row: 2;
  }

  .ws-reader-tools {
    grid-column: 2;
    grid-row: 2;
  }

  .ws-reader-main {
    padding-inline: clamp(0.45rem, 2.5vw, 1rem);
  }

  .ws-reader-summary ul {
    grid-template-columns: 1fr;
  }

  .ws-reader-pages {
    gap: clamp(1.8rem, 9vw, 3.2rem);
  }

  .ws-reader-sheet img {
    box-shadow: 0 10px 22px rgba(32, 42, 48, 0.09);
  }
}

@media screen and (max-width: 480px) {
  .ws-reader-back,
  .ws-reader-download {
    font-size: 0.65rem;
    min-height: 40px;
    padding: 0.38rem 0.5rem;
  }

  .ws-reader-back span {
    display: none;
  }

  .ws-reader-tools {
    gap: 0.45rem;
  }

  .ws-reader-progress {
    font-size: 0.68rem;
  }

  .ws-reader-summary {
    box-shadow: 4px 4px 0 rgba(38, 77, 92, 0.07);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  .ws-skip-link {
    transition: none;
  }
}

@media (forced-colors: active) {
  body.ws-reader-page::before {
    display: none;
  }

  .ws-reader-bar {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .ws-reader-page-item[data-reader-current="true"] .ws-reader-sheet figcaption {
    font-weight: 700;
  }
}

@media print {
  :root {
    background: #fff;
  }

  .ws-reader-bar,
  .ws-reader-intro,
  .ws-reader-summary,
  .ws-reader-end,
  .ws-reader-sheet figcaption,
  .ws-skip-link {
    display: none;
  }

  body.ws-reader-page,
  body.ws-reader-page::before {
    background: #fff;
  }

  body.ws-reader-page {
    padding-top: 0;
  }

  .ws-reader-main {
    max-width: none;
    padding: 0;
  }

  .ws-reader-pages {
    display: block;
  }

  .ws-reader-page-item {
    break-after: page;
    contain: none;
    content-visibility: visible;
  }

  .ws-reader-page-item:last-child {
    break-after: auto;
  }

  .ws-reader-sheet {
    max-width: none;
  }

  .ws-reader-sheet img {
    border: 0;
    box-shadow: none;
    filter: none;
    max-height: 100vh;
  }
}