/* Reusable adaptive reader. Opt in with data-reader-content and data-reader-toolbar. */

:root {
  --reader-line-length: clamp(52rem, 78vw, 76rem);
  --reader-workbench-line-length: clamp(96ch, 72vw, 116ch);
  --reader-breakout-width: clamp(72rem, 84vw, 88rem);
}

html[data-reader-width="focus"] {
  --reader-line-length: 52rem;
  --reader-workbench-line-length: 76ch;
  --reader-breakout-width: 58rem;
}

html[data-reader-width="standard"] {
  --reader-line-length: 64rem;
  --reader-workbench-line-length: 96ch;
  --reader-breakout-width: 75rem;
}

html[data-reader-width="wide"] {
  --reader-line-length: 76rem;
  --reader-workbench-line-length: 116ch;
  --reader-breakout-width: 88rem;
}

[data-reader-content] {
  width: calc(100% - 2rem);
  max-width: var(--reader-line-length) !important;
  margin-inline: auto !important;
}

[data-reader-content][data-reader-layout="managed"] {
  width: 100%;
  max-width: none !important;
}

html[data-reader-text="small"] [data-reader-content] { font-size: 0.94em; }
html[data-reader-text="large"] [data-reader-content] { font-size: 1.08em; }

.reader-progress,
[data-reader-progress] {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent, #c85534), var(--cyan, #168798));
  transition: width 100ms linear;
}

.reader-outline { margin: 0; padding: 0; list-style: none; }
.reader-outline li { margin: 0; }
.reader-outline a { display: block; padding: 0.4rem 0.5rem; color: var(--ink-soft, #3f4b50); text-decoration: none; }
.reader-outline .is-nested a { padding-left: 1.25rem; font-size: 0.92em; }

.code-sample {
  position: relative;
  margin: 1.5rem 0;
  background: var(--code-bg, #11191d);
  border: 1px solid #314046;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(17, 25, 29, 0.14);
  overflow: hidden;
  transition: width 180ms ease, box-shadow 180ms ease;
}

.code-sample-toolbar {
  min-height: 42px;
  padding: 0.45rem 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: #c6d4d6;
  background: #182329;
  border-bottom: 1px solid #314046;
  font-family: -apple-system, "Helvetica Neue", sans-serif;
}

.code-sample-language {
  margin-right: auto;
  color: #91a7ab;
  font: 700 0.68rem/1 "SF Mono", Menlo, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.code-sample button {
  min-height: 30px;
  padding: 0.3rem 0.55rem;
  color: #c6d4d6;
  background: transparent;
  border: 1px solid #3a4d55;
  border-radius: 5px;
  font: 600 0.68rem/1 -apple-system, "Helvetica Neue", sans-serif;
  cursor: pointer;
}

.code-sample button:hover { color: #fff; border-color: #86d8df; }
.code-sample pre { margin: 0; border: 0; border-radius: 0; box-shadow: none; max-height: none; }
.code-sample.is-expanded {
  width: min(var(--reader-breakout-width, 75rem), calc(100vw - 3rem));
  max-width: none;
  margin-left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  box-shadow: 0 24px 70px rgba(17, 25, 29, 0.28);
}

.reader-lab {
  margin: 1.5rem 0 2.25rem;
  padding: clamp(1rem, 2.5vw, 1.6rem);
  background: var(--paper, #fffdf8);
  border: 1px solid var(--rule, #cfd5d3);
  border-radius: 10px;
}

.reader-lab-kicker {
  margin: 0 0 0.55rem;
  color: var(--cyan, #168798);
  font: 700 0.7rem/1 -apple-system, "Helvetica Neue", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reader-settings {
  position: relative;
  flex: 0 0 auto;
  margin-left: auto;
  color: var(--ink, #161d21);
  font-family: -apple-system, "Helvetica Neue", sans-serif;
  text-align: left;
}

.reader-settings > summary {
  min-height: 40px;
  padding: 0.45rem 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink-soft, #3f4b50);
  background: var(--paper, #fffdf8);
  border: 1px solid var(--rule, #cfd5d3);
  border-radius: 7px;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.reader-settings > summary::-webkit-details-marker { display: none; }
.reader-settings > summary::before { content: "Aa"; color: var(--accent, #c85534); font-family: Georgia, serif; font-size: 1rem; }
.reader-settings[open] > summary { color: var(--ink, #161d21); border-color: var(--cyan, #168798); }

.reader-settings-panel {
  position: absolute;
  top: calc(100% + 0.55rem);
  right: 0;
  z-index: 400;
  width: min(21rem, calc(100vw - 2rem));
  padding: 1rem;
  color: var(--ink, #161d21);
  background: var(--paper, #fffdf8);
  border: 1px solid var(--rule, #cfd5d3);
  border-radius: 10px;
  box-shadow: 0 18px 48px rgba(17, 25, 29, 0.2);
}

.reader-settings-panel fieldset {
  min-width: 0;
  margin: 0 0 1rem;
  padding: 0;
  border: 0;
}

.reader-settings-panel legend {
  margin-bottom: 0.5rem;
  color: var(--ink-soft, #3f4b50);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reader-settings-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
}

.reader-settings-options[data-reader-options="text"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.reader-settings-panel button {
  min-height: 40px;
  padding: 0.5rem 0.6rem;
  color: var(--ink-soft, #3f4b50);
  background: var(--bg, #f2f1ed);
  border: 1px solid var(--rule, #cfd5d3);
  border-radius: 6px;
  font: 600 0.75rem/1.2 -apple-system, "Helvetica Neue", sans-serif;
  cursor: pointer;
}

.reader-settings-panel button:hover { color: var(--ink, #161d21); border-color: var(--cyan, #168798); }
.reader-settings-panel button[aria-pressed="true"] { color: #fff; background: var(--cyan, #168798); border-color: var(--cyan, #168798); }
.reader-settings-panel .reader-settings-reset { width: 100%; color: var(--accent, #c85534); background: transparent; }

.nav-superior .ubicacion {
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-toolbar-host {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 400;
}

@media (max-width: 700px) {
  [data-reader-content] { width: calc(100% - 1.5rem); }
  [data-reader-content][data-reader-layout="managed"] { width: 100%; }
  .nav-superior .ubicacion { display: none; }
  .reader-settings > summary { min-height: 38px; padding-inline: 0.6rem; }
  .reader-settings-panel { position: fixed; top: 7.25rem; right: 1rem; }
  .code-sample.is-expanded { width: calc(100vw - 1.5rem); }
  .code-sample-toolbar { align-items: stretch; flex-wrap: wrap; }
  .code-sample-language { width: 100%; margin-bottom: 0.15rem; }
}

@media print {
  .reader-settings,
  .reader-toolbar-host,
  [data-reader-progress] { display: none !important; }
  [data-reader-content] { width: 100%; max-width: 100% !important; margin: 0 !important; font-size: inherit !important; }
  .code-sample-toolbar { display: none !important; }
  .code-sample { border: 1px solid #999; box-shadow: none; }
}