:root {
  --course-ink: #16324f;
  --course-teal: #0f766e;
  --course-teal-dark: #115e59;
  --course-coral: #e76f51;
  --course-sand: #f7f3eb;
  --course-mist: #eef7f6;
  --course-border: #d7e5e3;
  --bs-primary: var(--course-teal);
  --bs-primary-rgb: 15, 118, 110;
}

body {
  color: #334155;
  background: #fcfdfd;
}

/* Prosa justificada. Solo los párrafos y listas que cuelgan directamente del
   documento, sus secciones y los callouts: el código, las figuras, las demos,
   las tarjetas del calendario y la portada conservan su alineación. El guionado
   (según `lang: es`) evita los huecos grandes entre palabras. */
#quarto-document-content > p,
#quarto-document-content > :is(ul, ol) > li,
#quarto-document-content section > p,
#quarto-document-content section > :is(ul, ol) > li,
.callout-body-container > p,
.callout-body-container > :is(ul, ol) > li,
.recursion-exercise-copy > p,
.recursion-exercise-copy > :is(ul, ol) > li {
  text-align: justify;
  hyphens: auto;
}

.navbar {
  background: linear-gradient(100deg, var(--course-teal-dark), var(--course-teal)) !important;
  box-shadow: 0 3px 18px rgba(15, 76, 72, 0.18);
}

.navbar-title,
.navbar .nav-link {
  color: #fff !important;
}

.sidebar-logo {
  max-width: 165px;
  margin: 0 auto 1rem;
}

.sidebar-navigation .sidebar-item a.active {
  color: var(--course-teal);
  border-left-color: var(--course-coral);
}

a {
  color: var(--course-teal);
}

a:hover {
  color: var(--course-teal-dark);
}

.course-hero {
  position: relative;
  isolation: isolate;
  min-height: 300px;
  width: calc(100% - 2rem);
  margin: 1rem 1rem 2.25rem;
  padding: 3rem clamp(2rem, 6vw, 5rem);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 82% 22%, rgba(231, 111, 81, 0.9) 0 7%, transparent 7.3%),
    radial-gradient(circle at 88% 35%, rgba(255, 255, 255, 0.12) 0 17%, transparent 17.3%),
    linear-gradient(120deg, #12334a 0%, #0f766e 62%, #149188 100%);
  border-radius: 0.65rem;
}

.course-hero::after {
  content: "</>";
  position: absolute;
  right: clamp(2rem, 6vw, 5rem);
  bottom: -1.5rem;
  z-index: -1;
  color: rgba(255, 255, 255, 0.1);
  font: 700 clamp(7rem, 18vw, 15rem)/1 monospace;
  letter-spacing: -0.14em;
}

.course-hero-content {
  max-width: 760px;
}

.course-hero h1 {
  margin: 0.5rem 0 0.2rem;
  color: #fff;
  font-size: clamp(2.4rem, 5vw, 4.1rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #b9f1eb;
}

.course-code {
  margin: 0.55rem 0 0.9rem;
  color: #ffd7cc;
  font-size: 1.15rem;
  font-weight: 700;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 1.4rem;
  font-size: clamp(1.05rem, 1.7vw, 1.2rem);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.course-hero .btn {
  margin: 0 0.55rem 0.55rem 0;
  border-radius: 0.45rem;
  font-weight: 700;
}

.course-hero .btn-primary {
  color: #17324a;
  background: #fff;
  border-color: #fff;
}

.course-hero .btn-primary:hover {
  background: var(--course-sand);
}

.section-title {
  color: var(--course-ink);
}

main h2 {
  border-bottom: 0;
}

main hr {
  display: none;
}

.section-title::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: 4px;
  margin-top: 0.55rem;
  background: var(--course-coral);
  border-radius: 4px;
}

.calendar-empty {
  max-width: 720px;
  margin: 2rem auto;
  padding: 3rem 2rem;
  text-align: center;
  background: linear-gradient(145deg, #fff, var(--course-mist));
  border: 1px dashed #8abcb7;
  border-radius: 0.6rem;
}

.calendar-empty-icon {
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1rem;
  place-items: center;
  color: #fff;
  background: var(--course-teal);
  border-radius: 0.5rem;
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.25);
  font-size: 2rem;
}

.calendar-empty h2 {
  color: var(--course-ink);
}

#calendar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.practice-card.is-current {
  border-left: 6px solid var(--course-teal) !important;
  background-color: var(--course-mist);
  box-shadow: 0 0.5rem 1rem rgba(15, 118, 110, 0.15) !important;
}

.practice-card.is-past {
  filter: grayscale(100%);
  opacity: 0.6;
}

.practice-card.is-past .badge {
  opacity: 0.7;
}

/* Práctica que todavía no se ha publicado: se muestra la ficha con sus fechas,
   pero el guion no existe aún en el sitio, así que la tarjeta no enlaza. */
.practice-card.is-locked {
  background-color: #f6f7f8;
  border: 1px dashed #c9d2d0 !important;
  box-shadow: none !important;
  cursor: default;
}

.practice-card-wrapper .card {
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.practice-card-wrapper .card:hover {
  background-color: #f8f9fa;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1) !important;
}

.practice-card-wrapper .card.is-locked:hover {
  background-color: #f6f7f8;
  box-shadow: none !important;
}

.calendar-sessions summary {
  color: var(--course-teal);
  cursor: pointer;
  font-weight: 700;
}

.calendar-session-scroll {
  overflow-x: auto;
}

.calendar-session-list {
  min-width: 620px;
  font-size: 0.9rem;
}

.calendar-session-row {
  display: grid;
  grid-template-columns: 0.7fr 1.2fr 1fr 1.5fr;
  gap: 0.75rem;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--course-border);
}

.calendar-session-head {
  color: var(--course-ink);
  background: #f1f6f5;
  font-weight: 700;
}

.callout {
  border-radius: 0.4rem;
}

.nav-footer {
  background: #f1f6f5;
  border-top-color: var(--course-border) !important;
}

.interactive-demo,
.native-diagram {
  margin: 1rem 0 1.35rem;
  padding: 0.9rem;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), transparent 52%),
    #fff;
  border: 1px solid var(--course-border);
  border-radius: 0.6rem;
  box-shadow: 0 10px 24px rgba(22, 50, 79, 0.08);
}

.interactive-demo:not(.is-ready) {
  min-height: 12rem;
}

.demo-toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem 1rem;
  align-items: end;
  margin-bottom: 0.75rem;
}

.demo-toolbar.demo-toolbar-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.demo-control {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: center;
  margin: 0;
  color: var(--course-ink);
  font-weight: 700;
}

.demo-control input[type="range"] {
  min-width: 0;
  accent-color: var(--course-teal);
}

.demo-control output {
  min-width: 3rem;
  color: var(--course-teal-dark);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.demo-zoom-hint {
  margin: 0.4rem 0;
  color: var(--course-teal-dark);
  font-size: 0.85rem;
}

.taylor-demo .demo-canvas:focus-visible {
  outline: 2px solid var(--course-teal);
  outline-offset: 2px;
}

.demo-text-control {
  display: grid;
  gap: 0.35rem;
  color: var(--course-ink);
  font-weight: 700;
}

.demo-text-input {
  width: 100%;
  padding: 0.48rem 0.58rem;
  color: #263646;
  background: #fff;
  border: 1px solid #a8c9c5;
  border-radius: 0.4rem;
  font: inherit;
  font-family: "Cascadia Mono", "Fira Code", Consolas, monospace;
}

.demo-text-input:focus-visible {
  outline: 2px solid rgba(15, 118, 110, 0.35);
  outline-offset: 1px;
}

.demo-canvas {
  display: block;
  width: 100%;
  border: 1px solid #b8d4d1;
  border-radius: 0.5rem;
  background: #f8fcfb;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.demo-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin-top: 0.6rem;
  font-size: 0.93rem;
}

.demo-legend-swatch {
  display: inline-block;
  width: 1.3rem;
  height: 0.22rem;
  margin-right: 0.35rem;
  vertical-align: middle;
  border-radius: 999px;
}

.demo-swatch-primary {
  background: var(--course-teal);
}

.demo-swatch-secondary {
  background: var(--course-coral);
}

.demo-readout,
.demo-output {
  margin-top: 0.7rem;
  padding: 0.62rem 0.72rem;
  color: #263646;
  background: #f5f9f8;
  border-left: 4px solid var(--course-teal);
  border-radius: 0.25rem;
  font-variant-numeric: tabular-nums;
}

.demo-readout-line {
  display: block;
}

.demo-readout-line + .demo-readout-line {
  margin-top: 0.15rem;
}

.demo-output code {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.demo-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.7rem;
}

.demo-comparison > div {
  min-width: 0;
  padding: 0.65rem;
  background: #f7faf9;
  border: 1px solid var(--course-border);
  border-radius: 0.45rem;
}

.demo-comparison strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--course-ink);
}

.rle-runs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.7rem;
}

.rle-run {
  padding: 0.32rem 0.48rem;
  color: #17324a;
  background: #d9f0ed;
  border: 1px solid #91c6c0;
  border-radius: 0.35rem;
  font-family: "Cascadia Mono", "Fira Code", Consolas, monospace;
}

.rle-run:nth-child(even) {
  background: #fde8e2;
  border-color: #efb2a2;
}

.native-diagram .cell,
.native-diagram .cell-output-display,
.native-diagram .mermaid {
  margin: 0;
}

.native-diagram svg {
  max-width: 100%;
  height: auto;
}

.native-diagram.diagram-wide {
  padding: 0.55rem 0.7rem;
}

.native-diagram.diagram-wide .mermaid,
.native-diagram.diagram-wide .cell-output-display,
.native-diagram.diagram-wide svg {
  width: 100% !important;
  max-width: none !important;
}

.column-margin .native-diagram {
  width: 100%;
  margin: 0.25rem 0 1rem;
  padding: 0.45rem;
  box-shadow: none;
}

.column-margin .native-diagram svg {
  display: block;
  width: 100% !important;
  max-width: none !important;
}

.recursion-exercise-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(9rem, 10.5rem);
  gap: 1.25rem;
  align-items: start;
}

.recursion-exercise-copy {
  min-width: 0;
}

.recursion-exercise-diagram {
  box-sizing: border-box;
  width: 100%;
  max-width: 10.5rem;
  margin: 0;
  padding: 0.5rem;
  justify-self: end;
  box-shadow: none;
}

.recursion-exercise-diagram svg {
  display: block;
  width: 100% !important;
  max-width: 100% !important;
}

pre.console-output,
.console-output pre {
  position: relative;
  padding: 2.55rem 1rem 1rem;
  overflow-x: auto;
  color: #d7f7e9;
  background: #10252d;
  border: 1px solid #294650;
  border-radius: 0.55rem;
  box-shadow: 0 12px 28px rgba(16, 37, 45, 0.18);
  font-family: "Cascadia Mono", "Fira Code", Consolas, monospace;
}

pre.console-output::before,
.console-output pre::before {
  content: "●  ●  ●    Terminal";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  padding: 0.55rem 0.8rem;
  color: #efb2a2;
  background: #193740;
  border-bottom: 1px solid #294650;
  font: 700 0.78rem/1 system-ui, sans-serif;
  letter-spacing: 0.04em;
}

/* Un título propio por bloque, sin necesidad de JavaScript. */
pre.console-output[data-title]::before,
.console-output pre[data-title]::before {
  content: "●  ●  ●    " attr(data-title);
}

/* --- Consolas paso a paso (scripts/console-steps.js) --------------------- */

.console-demo-shell {
  position: relative;
}

.console-demo-shell:focus-visible {
  outline: 2px solid var(--course-teal, #0f766e);
  outline-offset: 3px;
}

/* La barra real ocupa exactamente la banda que `pre.console-output` ya reserva
   con su padding superior, y se pinta igual que el ::before al que sustituye,
   así que al arrancar el script no hay ni salto ni parpadeo. */
.console-bar {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1;
  display: flex;
  height: 2.55rem;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.8rem;
  color: #efb2a2;
  background: #193740;
  border-radius: 0.55rem 0.55rem 0 0;
  border-bottom: 1px solid #294650;
  font: 700 0.78rem/1 system-ui, sans-serif;
  letter-spacing: 0.04em;
}

.console-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.console-progress {
  margin-left: auto;
  color: #9fc4bd;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.console-controls {
  display: flex;
  gap: 0.15rem;
}

.console-btn {
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  padding: 0;
  color: #d7f7e9;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.3rem;
  font-size: 0.82rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.console-btn:hover:not(:disabled) {
  color: #ffffff;
  background: rgba(215, 247, 233, 0.16);
}

.console-btn:focus-visible {
  outline: 2px solid #7fd3bb;
  outline-offset: 1px;
}

.console-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Las líneas ocultas siguen ocupando su sitio: así el bloque tiene su altura
   definitiva desde el primer pintado y la página no salta en cada paso. */
[data-enhanced="1"] .console-line {
  visibility: hidden;
  opacity: 0;
}

[data-enhanced="1"] .console-line.is-visible {
  visibility: visible;
  opacity: 1;
  transition: opacity 120ms ease-out;
}

/* Al partir el contenido en <span> por línea, estas quedan expuestas a la regla
   `code span { color: #003B4F }` del resaltado de sintaxis de Quarto, que sobre
   el fondo oscuro del terminal resulta ilegible. Se restituye el color original. */
[data-enhanced="1"] .console-line,
[data-enhanced="1"] .console-text {
  color: #d7f7e9;
}

/* Lo que teclea el usuario, en el tono cálido que ya usa la barra del terminal. */
[data-enhanced="1"] .console-line[data-kind="in"],
[data-enhanced="1"] .console-line[data-kind="in"] .console-text {
  color: #efb2a2;
  font-weight: 600;
}

.console-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  margin-left: 0.05em;
  background: #7fd3bb;
  vertical-align: text-bottom;
  animation: console-blink 1.06s steps(2, start) infinite;
}

@keyframes console-blink {
  to { visibility: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  [data-enhanced="1"] .console-line.is-visible {
    transition: none;
  }

  .console-cursor {
    animation: none;
  }
}

.money-notes {
  display: flex;
  min-height: 6.7rem;
  margin-top: 0.75rem;
  padding: 1rem;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-content: flex-start;
  background: #e8f2ee;
  border: 1px solid #bed8d1;
  border-radius: 0.5rem;
}

.euro-note {
  display: grid;
  width: 5.4rem;
  height: 2.75rem;
  place-items: center;
  color: #17324a;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.6) 0 22%, transparent 23%),
    #dcefdc;
  border: 2px solid #6fa987;
  border-radius: 0.3rem;
  box-shadow: 0 4px 8px rgba(22, 50, 79, 0.12);
  font: 800 1rem/1 system-ui, sans-serif;
  animation: note-drop 0.35s both;
  animation-delay: calc(var(--drop-index) * 35ms);
}

.euro-note-20 { background-color: #dceafa; border-color: #7899bd; }
.euro-note-10 { background-color: #f7dce0; border-color: #c37d89; }

@keyframes note-drop {
  from { opacity: 0; transform: translateY(-1.2rem) rotate(-3deg); }
  to { opacity: 1; transform: translateY(0) rotate(0); }
}

.money-table {
  width: 100%;
  margin: 0.75rem 0 0;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.money-table th,
.money-table td {
  padding: 0.38rem 0.55rem;
  border-bottom: 1px solid var(--course-border);
  text-align: right;
}

.money-table th:first-child,
.money-table td:first-child { text-align: left; }

.point-circle-layout {
  display: grid;
  grid-template-columns: minmax(12rem, 0.7fr) minmax(16rem, 1.3fr);
  gap: 1rem;
  align-items: center;
  justify-content: center;
}

.point-circle-controls {
  grid-template-columns: 1fr;
  margin: 0;
}

.point-circle-stage,
.caesar-stage {
  width: min(100%, 26rem);
  margin-inline: auto;
  aspect-ratio: 1;
}

.point-circle-stage .demo-canvas,
.caesar-stage .demo-canvas {
  aspect-ratio: 1;
}

.caesar-layout {
  display: grid;
  grid-template-columns: minmax(17rem, 0.9fr) minmax(18rem, 1.1fr);
  gap: 1.15rem;
  align-items: center;
}

.caesar-details .demo-toolbar,
.caesar-details .demo-comparison {
  grid-template-columns: 1fr;
}

.caesar-details .demo-toolbar { margin-bottom: 0; }

.triangle-canvas { cursor: grab; touch-action: none; }
.triangle-canvas:active { cursor: grabbing; }

.vector-cells {
  display: flex;
  margin: 0.75rem 0;
  padding: 0.75rem;
  overflow-x: auto;
  gap: 0.22rem;
  background: #f5f9f8;
  border-radius: 0.45rem;
}

.vector-cell {
  display: grid;
  min-width: 2.25rem;
  height: 2.65rem;
  place-items: center;
  color: var(--course-ink);
  background: #fff;
  border: 1px solid #9fc3bf;
  border-radius: 0.25rem;
  font-family: "Cascadia Mono", "Fira Code", Consolas, monospace;
}

.vector-cell small {
  align-self: end;
  color: #718096;
  font-size: 0.62rem;
}

.vector-cell.is-virus {
  color: #7c2d12;
  background: #fde8e2;
  border-color: var(--course-coral);
}

.codon-list {
  display: flex;
  margin-top: 0.75rem;
  padding: 0.75rem;
  flex-wrap: wrap;
  gap: 0.45rem;
  background: #f5f9f8;
  border-radius: 0.45rem;
}

.codon {
  display: grid;
  min-width: 4.6rem;
  padding: 0.45rem 0.6rem;
  gap: 0.15rem;
  text-align: center;
  background: #fff;
  border: 1px solid #9fc3bf;
  border-radius: 0.4rem;
}

.codon b { color: var(--course-teal-dark); letter-spacing: 0.12em; }
.codon small { color: #64748b; }
.codon.is-match { background: #fff2ed; border-color: var(--course-coral); }
.codon.is-incomplete { opacity: 0.55; }

.codon-table-figure {
  margin: 0;
  overflow-x: auto;
}

.codon-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 3px;
  font-size: 0.82rem;
  table-layout: fixed;
}

.codon-table th {
  padding: 0.4rem 0.3rem;
  color: var(--course-teal-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  background: #e6f2f0;
  border-radius: 0.35rem;
}

.codon-table-base {
  width: 2.2rem;
  font-size: 0.95rem;
  vertical-align: middle;
}

.codon-cell {
  display: table-cell;
  padding: 0.4rem 0.3rem;
  text-align: center;
  background: #fff;
  border: 1px solid #9fc3bf;
  border-radius: 0.4rem;
}

.codon-cell b {
  display: block;
  color: var(--course-teal-dark);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
}

.codon-cell small {
  display: block;
  margin-top: 0.1rem;
  color: #64748b;
  font-size: 0.74rem;
}

.codon-cell.is-stop { background: #fff2ed; border-color: var(--course-coral); }
.codon-cell.is-stop small { color: #b3462a; font-weight: 700; }
.codon-cell.is-start { background: #eef7f5; border-color: var(--course-teal-dark); }
.codon-cell.is-start small { color: var(--course-teal-dark); font-weight: 700; }

.codon-table-legend {
  display: flex;
  margin-top: 0.6rem;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.78rem;
  color: #64748b;
}

.codon-legend-item::before {
  content: "";
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.35rem;
  vertical-align: -1px;
  border: 1px solid #9fc3bf;
  border-radius: 0.2rem;
}

.codon-legend-item.is-stop::before { background: #fff2ed; border-color: var(--course-coral); }
.codon-legend-item.is-start::before { background: #eef7f5; border-color: var(--course-teal-dark); }

@media (max-width: 620px) {
  .codon-table { min-width: 34rem; }
}

.ascii-table-scroll { overflow-x: auto; }

.ascii-table {
  display: grid;
  min-width: 36rem;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: 3px;
}

.ascii-cell {
  display: grid;
  padding: 0.32rem 0.1rem;
  place-items: center;
  gap: 0.05rem;
  color: var(--course-ink);
  background: #fff;
  border: 1px solid #c9dedb;
  border-radius: 0.35rem;
  font: inherit;
  line-height: 1.15;
  cursor: pointer;
}

.ascii-cell:hover { border-color: var(--course-teal); }

.ascii-cell:focus-visible {
  outline: 2px solid rgba(15, 118, 110, 0.35);
  outline-offset: 1px;
}

.ascii-cell b {
  font-family: "Cascadia Mono", "Fira Code", Consolas, monospace;
  font-size: 0.95rem;
}

.ascii-cell small {
  color: #64748b;
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
}

.ascii-cell.is-named b { font-size: 0.7rem; }
.ascii-cell.is-upper { background: #eef7f5; border-color: #9fc3bf; }
.ascii-cell.is-lower { background: var(--course-sand); border-color: #d8ccb4; }
.ascii-cell.is-selected { background: #fff2ed; border-color: var(--course-coral); }
.ascii-cell.is-selected b { color: #b3462a; }

.ascii-legend-upper::before { background: #eef7f5; }
.ascii-legend-lower::before { background: var(--course-sand); border-color: #d8ccb4; }
.ascii-legend-selected::before { background: #fff2ed; border-color: var(--course-coral); }

.image-processing-demo {
  padding: clamp(0.85rem, 2vw, 1.35rem);
}

.image-processing-fallback {
  width: min(100%, 30rem);
  margin: 0 auto;
}

.image-processing-fallback img {
  width: 100%;
  border-radius: 0.45rem;
}

.image-processing-tabs {
  display: flex;
  margin-bottom: 1rem;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.image-processing-tabs button {
  padding: 0.48rem 0.8rem;
  color: var(--course-teal-dark);
  background: #fff;
  border: 1px solid #9fc3bf;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.image-processing-tabs button:hover,
.image-processing-tabs button:focus-visible {
  border-color: var(--course-teal);
  outline: 0;
}

.image-processing-tabs button[aria-pressed="true"] {
  color: #fff;
  background: var(--course-teal);
  border-color: var(--course-teal);
}

.image-processing-controls {
  grid-template-columns: repeat(2, minmax(12rem, 1fr));
}

.image-processing-controls > [hidden] {
  display: none;
}

.image-processing-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.75rem, 2vw, 1.35rem);
}

.image-processing-comparison figure {
  margin: 0;
  min-width: 0;
}

.image-processing-comparison canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  background: #e8eeee;
  border: 1px solid #b8cbc9;
  border-radius: 0.5rem;
}

.bmp-structure {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) auto minmax(12rem, 0.8fr);
  gap: 0.7rem;
  align-items: stretch;
}

.bmp-block {
  display: grid;
  min-height: 6rem;
  place-items: center;
  padding: 0.8rem;
  color: var(--course-ink);
  background: #eaf4f3;
  border: 1px solid #9fc3bf;
  border-radius: 0.45rem;
  text-align: center;
}

.bmp-block small { display: block; color: #64748b; }
.bmp-pixels { background: #fff2ed; border-color: #efb2a2; }
.bmp-plus { align-self: center; color: var(--course-coral); font-size: 1.5rem; font-weight: 800; }

.pixel-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.pixel-grid {
  display: grid;
  width: min(100%, 17rem);
  margin: 0.55rem auto 0;
  aspect-ratio: 1;
  border: 2px solid #64748b;
}

.pixel-grid-source { grid-template-columns: repeat(4, 1fr); }
.pixel-grid-target { grid-template-columns: repeat(8, 1fr); }
.pixel { min-width: 0; padding: 0; border: 1px solid rgba(255, 255, 255, 0.48); }
button.pixel { cursor: pointer; }
button.pixel:focus-visible { z-index: 1; outline: 3px solid #17324a; outline-offset: -3px; }
.pixel-arrow { color: var(--course-coral); font-size: 2rem; font-weight: 800; }

@media (max-width: 800px) {
  .course-hero {
    min-height: 390px;
    width: calc(100vw - 3.5rem);
    max-width: calc(100vw - 3.5rem);
    box-sizing: border-box;
    margin-right: 0;
    margin-left: 0.5rem;
    padding-right: 2.1rem;
    padding-left: 2.1rem;
    padding-top: 4rem;
    padding-bottom: 5rem;
    border-radius: 0.55rem;
  }

  .course-hero::after {
    opacity: 0.6;
  }

  .demo-toolbar,
  .demo-toolbar.demo-toolbar-three,
  .demo-comparison {
    grid-template-columns: 1fr;
  }

  .bmp-structure,
  .pixel-layout,
  .point-circle-layout,
  .caesar-layout,
  .image-processing-comparison {
    grid-template-columns: 1fr;
  }

  .bmp-plus,
  .pixel-arrow { transform: rotate(90deg); }

}

@media (max-width: 560px) {
  .recursion-exercise-layout {
    grid-template-columns: 1fr;
  }

  .recursion-exercise-diagram {
    justify-self: center;
  }
}

/* Visor de presentaciones (scripts/slides-viewer.js). */
.slides-viewer {
  margin: 1.25rem 0;
}

.slides-viewer iframe {
  display: block;
  /* Todo el ancho disponible, pero sin pasar de la altura de la ventana menos
     la barra de navegación, el título y los botones: así la diapositiva se ve
     entera sin desplazarse, también en un portátil de 768 px de alto. */
  width: min(100%, calc((100vh - 18rem) * 16 / 9));
  aspect-ratio: 16 / 9;
  border: 1px solid var(--course-border);
  border-radius: 0.5rem;
  background: var(--course-mist);
}

.slides-viewer iframe:fullscreen {
  border: 0;
  border-radius: 0;
}

.slides-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.slides-note {
  padding: 0.75rem 1rem;
  border: 1px dashed var(--course-border);
  border-radius: 0.5rem;
  background: var(--course-mist);
}

@media print {
  .demo-toolbar,
  .slides-viewer iframe,
  .slides-toolbar {
    display: none;
  }

  .image-processing-tabs {
    display: none;
  }

  .interactive-demo,
  .native-diagram {
    break-inside: avoid;
    box-shadow: none;
  }

  .money-notes { min-height: 0; }
  .euro-note { animation: none; }

  /* En papel se imprime la transcripción completa, sin controles. */
  .console-controls,
  .console-progress,
  .console-cursor {
    display: none;
  }

  [data-enhanced="1"] .console-line {
    visibility: visible !important;
    opacity: 1 !important;
    transition: none !important;
  }

  /* El color no sobrevive a una impresión en blanco y negro, así que se
     recupera el marcador para poder distinguir lo que teclea el usuario. */
  [data-enhanced="1"] .console-line[data-kind="in"] .console-text::before {
    content: "> ";
  }
}