/* ecodubi.com: economía para entender lo que pasa a tu alrededor */

@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif";
  src: url("fonts/source-serif.woff2") format("woff2");
  font-weight: 200 900;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif";
  src: url("fonts/source-serif-italic.woff2") format("woff2");
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --paper: #f2f5f3;
  --surface: #ffffff;
  --ink: #12263a;
  --muted: #4c5d6c;
  --line: #d3ddd7;
  --grid: #e1e9e4;
  --c-investigacion: #2156a5;
  --c-clase: #1b7448;
  --c-episodio: #7b3b8c;
  --c-lectura: #9c5410;
  --c-glosario: #12263a;
  --supply: #b65f0f;
  --demand: #2156a5;
  --accent: var(--c-investigacion);
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --serif: "Source Serif", "Iowan Old Style", Georgia, serif;
  --wrap: 72rem;
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1a24;
    --surface: #152431;
    --ink: #e3ecf0;
    --muted: #a0b3c0;
    --line: #2a3e4f;
    --grid: #1b2d3c;
    --c-investigacion: #86adf0;
    --c-clase: #63c696;
    --c-episodio: #cf9ade;
    --c-lectura: #eaa766;
    --c-glosario: #e3ecf0;
    --supply: #eaa766;
    --demand: #86adf0;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.55 var(--sans);
  font-stretch: 100%;
}
img, video, svg { max-width: 100%; }
img { height: auto; }
a { color: inherit; text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
body[data-section] { --accent: var(--c-investigacion); }
body[data-section="clase"] { --accent: var(--c-clase); }
body[data-section="episodio"] { --accent: var(--c-episodio); }
body[data-section="lectura"] { --accent: var(--c-lectura); }

h1, h2, h3 { font-family: var(--sans); font-stretch: 112%; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 5.4vw, 3.9rem); line-height: 1.02; font-weight: 780; letter-spacing: -.015em; }
h2 { font-size: 1.35rem; line-height: 1.15; font-weight: 720; }
h3 { font-size: 1.22rem; line-height: 1.22; font-weight: 680; }
p { margin: 0 0 1rem; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 1rem; top: -4rem; background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 50; border-radius: var(--radius); }
.skip:focus { top: .75rem; }

/* ---------------------------------------------------------------- cabecera */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top-in { max-width: var(--wrap); margin: 0 auto; padding: .7rem 1rem; display: flex; align-items: center; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; font-weight: 800; font-stretch: 120%; font-size: 1.3rem; letter-spacing: -.02em; }
.top-in { padding-block: .35rem; }
.logo { height: 3.6rem; width: auto; flex: none; display: block; }
@media (max-width: 44rem) { .logo { height: 3.1rem; } }
.foot-brand .logo { height: 5.5rem; }
/* Las letras del logo son negras: en modo oscuro va sobre una placa blanca */
@media (prefers-color-scheme: dark) { .logo { background: #fff; border-radius: .5rem; padding: .15rem .35rem; } }
.nav { margin-left: auto; display: flex; align-items: center; gap: .15rem; }
.nav a { text-decoration: none; padding: .45rem .6rem; border-radius: 6px; font-size: .95rem; font-weight: 520; color: var(--muted); position: relative; }
.nav a:hover, .nav a[aria-current] { color: var(--ink); }
.nav a[aria-current]::after { content: ""; position: absolute; left: .6rem; right: .6rem; bottom: .15rem; height: 3px; border-radius: 2px; background: var(--ink); }
.nav a[data-s="investigacion"][aria-current]::after { background: var(--c-investigacion); }
.nav a[data-s="clase"][aria-current]::after { background: var(--c-clase); }
.nav a[data-s="episodio"][aria-current]::after { background: var(--c-episodio); }
.nav a[data-s="lectura"][aria-current]::after { background: var(--c-lectura); }
.nav-search { display: inline-flex; align-items: center; gap: .3rem; }
/* Icono y nombre corto: solo los usa la barra de pestañas del móvil (si el tema la activa) */
.nav .ni, .nav .ns, .top-search { display: none; }
.nav-search svg { width: 1.05rem; height: 1.05rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: var(--radius); width: 2.75rem; height: 2.75rem; padding: .55rem; cursor: pointer; }
.nav-toggle svg { width: 100%; height: 100%; stroke: currentColor; stroke-width: 2; stroke-linecap: round; fill: none; }
@media (max-width: 62rem) {
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); padding: .5rem 1rem 1rem; gap: 0; }
  .nav.open { display: flex; }
  .nav a { padding: .8rem .25rem; font-size: 1.05rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav a[aria-current]::after { left: .25rem; right: auto; width: 2.5rem; bottom: .3rem; }
}
.admin-bar { background: var(--ink); color: var(--paper); font-size: .9rem; padding: .45rem 1rem; display: flex; gap: 1.25rem; justify-content: center; }

/* ---------------------------------------------------------------- botones */
.btn, .btn-ghost {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  min-height: 2.75rem; padding: .55rem 1.1rem; border-radius: var(--radius);
  font: 600 1rem/1.2 var(--sans); text-decoration: none; cursor: pointer;
}
.btn { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); }
.btn:hover { background: color-mix(in srgb, var(--ink) 85%, var(--accent)); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid color-mix(in srgb, var(--ink) 35%, transparent); }
.btn-ghost:hover { border-color: var(--ink); }

/* ---------------------------------------------------------------- portada */
main { display: block; }
.hero { max-width: var(--wrap); margin: 0 auto; padding: clamp(2rem, 6vw, 4.5rem) 1rem clamp(2rem, 5vw, 3.5rem); display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: center; }
.hero h1 { max-width: 13ch; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 38rem; margin-top: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
@media (max-width: 52rem) { .hero { grid-template-columns: 1fr; } }

/* gráfico de oferta y demanda */
.sd { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1rem 1.1rem; }
.sd-chart { display: block; width: 100%; height: auto; }
.sd-gridline { fill: none; stroke: var(--grid); stroke-width: 1; }
.sd-axis { fill: none; stroke: var(--ink); stroke-width: 2; }
.sd-axlabel { fill: var(--muted); font: 600 13px var(--sans); }
.sd-s, .sd-d { stroke-width: 5; stroke-linecap: round; }
.sd-s { stroke: var(--supply); }
.sd-d { stroke: var(--demand); }
.sd-lab { font: 700 15px var(--sans); font-stretch: 112%; }
.sd-lab-s { fill: var(--supply); }
.sd-lab-d { fill: var(--demand); }
.sd-guide { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 4 5; }
.sd-eq { fill: var(--ink); stroke: var(--surface); stroke-width: 3; }
.sd-val { fill: var(--ink); font: 700 14px var(--sans); }
.sd-controls { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 1.25rem; margin-top: .6rem; }
.sd-controls label { display: grid; gap: .15rem; font-size: .9rem; font-weight: 600; }
.sd-controls label:first-child span { color: var(--demand); }
.sd-controls label:last-child span { color: var(--supply); }
.sd-controls input { width: 100%; accent-color: var(--ink); min-height: 1.75rem; }
.sd figcaption { margin-top: .6rem; color: var(--muted); font-size: .97rem; min-height: 3em; }
.sd figcaption strong { color: var(--ink); }
@media (prefers-reduced-motion: no-preference) {
  .sd.drawn .sd-s, .sd.drawn .sd-d { stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 1.1s cubic-bezier(.3,.6,.2,1) forwards; }
  .sd.drawn .sd-d { animation-delay: .25s; }
  .sd.drawn .sd-eq, .sd.drawn .sd-guide, .sd.drawn .sd-val { opacity: 0; animation: appear .4s ease 1.2s forwards; }
  @keyframes draw { to { stroke-dashoffset: 0; } }
  @keyframes appear { to { opacity: 1; } }
}

.home-grid { max-width: var(--wrap); margin: 0 auto; padding: 0 1rem 3rem; display: grid; grid-template-columns: minmax(0, 1fr) 21rem; gap: 2rem 3.5rem; }
@media (max-width: 58rem) { .home-grid { grid-template-columns: minmax(0, 1fr); } }
.block > h2 { margin-bottom: .9rem; }
.home-side { display: grid; gap: 2.25rem; align-content: start; }
.latest > h2 { padding-top: 1.5rem; border-top: 3px solid var(--ink); }
.home-side .block > h2 { padding-top: 1.5rem; border-top: 3px solid var(--ink); }

.term { background: var(--surface); }
.home-side .term { border: 1px solid var(--line); border-top: 3px solid var(--ink); border-radius: 0 0 var(--radius) var(--radius); padding: 0 1.15rem .4rem; }
.home-side .term > h2 { border-top: 0; padding-top: 1.15rem; }
.term-word { font: 760 1.6rem/1.1 var(--sans); font-stretch: 118%; margin-bottom: .5rem; }
.term p:not(.term-word) { font-family: var(--serif); font-size: 1.05rem; line-height: 1.6; }
.term a { font-family: var(--sans); font-size: .95rem; font-weight: 600; }

.episode-band { background: var(--surface); border-block: 1px solid var(--line); }
.ep-in { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1rem; }
.ep-title { font: 720 1.5rem/1.2 var(--sans); font-stretch: 110%; margin: .2rem 0 .6rem; }
.ep-title a { text-decoration: none; }
.ep-title a:hover { text-decoration: underline; }
.episode-band h2 { color: var(--c-episodio); font-size: 1rem; }

/* ---------------------------------------------------------------- listados */
.rows { display: grid; }
.row { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; padding: 1.1rem 0 1.2rem; border-bottom: 1px solid var(--line); }
.row:first-child { padding-top: .2rem; }
.row.has-img { grid-template-columns: minmax(0, 1fr) 8.5rem; align-items: start; }
.row-h { font-size: 1.22rem; line-height: 1.22; font-weight: 680; }
.row-h a { text-decoration: none; }
.row-h a:hover { text-decoration: underline; }
.row-sum { color: var(--muted); margin: .4rem 0 0; max-width: 40rem; }
.row-img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 6px; background: var(--grid); }
@media (max-width: 30rem) { .row.has-img { grid-template-columns: minmax(0, 1fr) 5.5rem; } }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: .1rem .55rem; font-size: .88rem; color: var(--muted); margin: 0 0 .35rem; }
.sep { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .6; }
.kind { font-weight: 700; color: var(--ink); display: inline-flex; align-items: center; gap: .35rem; }
.kind::before { content: ""; width: .7rem; height: .7rem; border-radius: 2px; background: var(--ink); }
.kind[data-t="investigacion"]::before { background: var(--c-investigacion); }
.kind[data-t="clase"]::before { background: var(--c-clase); }
.kind[data-t="episodio"]::before { background: var(--c-episodio); border-radius: 50%; }
.kind[data-t="lectura"]::before { background: var(--c-lectura); }
.empty { color: var(--muted); font-style: italic; font-family: var(--serif); font-size: 1.05rem; }

.sec-head { max-width: var(--wrap); margin: 0 auto; padding: clamp(2rem, 5vw, 3.5rem) 1rem .5rem; }
.sec-head h1 { max-width: 18ch; }
.sec-head h1::before { content: ""; display: block; width: 3.5rem; height: 6px; border-radius: 3px; background: var(--accent); margin-bottom: 1.1rem; }
body[data-section="glosario"] .sec-head h1::before, body[data-section="buscar"] .sec-head h1::before, body[data-section="sobre"] .sec-head h1::before { background: var(--ink); }
.sec-body { max-width: var(--wrap); margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.sub-links { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; font-weight: 600; }
.crumbs { font-weight: 650; font-size: .95rem; margin-bottom: .9rem; }
.crumbs a { color: var(--accent); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.pager { max-width: var(--wrap); margin: 0 auto; padding: 0 1rem 3rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; color: var(--muted); }
.pager a { font-weight: 650; color: var(--ink); }

/* libros */
.books { display: grid; grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr)); gap: 2rem 1.5rem; }
.book a { text-decoration: none; display: block; }
.book img, .book-blank { width: 100%; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 3px 6px 6px 3px; box-shadow: 0 1px 2px rgb(0 0 0 / .15), 0 8px 18px -8px rgb(0 0 0 / .35); background: var(--grid); }
.book-blank { display: flex; align-items: flex-end; padding: 1rem; background: var(--c-lectura); color: #fff; font: 760 1.1rem/1.15 var(--sans); font-stretch: 110%; }
@media (prefers-color-scheme: dark) { .book-blank { color: #1c1105; } }
.book h2 { font-size: 1.05rem; line-height: 1.25; font-weight: 680; margin-top: .8rem; }
.book a:hover h2 { text-decoration: underline; }
.book-author { color: var(--muted); font-size: .92rem; margin: .2rem 0 0; }

/* clases */
.classes, .course { display: grid; grid-template-columns: minmax(0, 1fr) 20rem; gap: 2rem 3.5rem; align-items: start; }
@media (max-width: 58rem) { .classes, .course { grid-template-columns: minmax(0, 1fr); } }
.course-cards { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.course-cards a { display: block; text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--c-clase); border-radius: var(--radius); padding: 1.1rem 1.25rem; }
.course-cards a:hover h3 { text-decoration: underline; }
.cc-sub { margin: .3rem 0 0; color: var(--muted); }
.cc-meta { margin: .6rem 0 0; font-size: .9rem; font-weight: 600; color: var(--c-clase); }
.course-links { list-style: none; margin: 0; padding: 0; }
.course-links a { display: grid; padding: .7rem 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.course-links a:hover strong { text-decoration: underline; }
.course-links span { color: var(--muted); font-size: .92rem; }
.timeline-h { margin: .5rem 0 1.25rem; }
.timeline { list-style: none; margin: 0; padding: 0 0 0 1.5rem; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 0 0 1.75rem; }
.timeline li::before { content: ""; position: absolute; left: calc(-1.5rem - 7px); top: .3rem; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 3px solid var(--c-clase); }
.timeline time { font-size: .9rem; font-weight: 650; color: var(--c-clase); }
.timeline h3 { margin: .15rem 0 .35rem; }
.timeline h3 a { text-decoration: none; }
.timeline h3 a:hover { text-decoration: underline; }
.timeline p { margin: 0 0 .5rem; color: var(--muted); max-width: 42rem; }
.tl-files { display: flex; flex-wrap: wrap; gap: .5rem; }
.tl-files a { display: inline-flex; align-items: center; gap: .4rem; font-size: .9rem; font-weight: 600; color: var(--ink); text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: .35rem .6rem; }
.tl-files a:hover { border-color: var(--ink); }
.draft-tag { font-size: .75rem; font-weight: 700; background: var(--ink); color: var(--paper); padding: .1rem .45rem; border-radius: 4px; vertical-align: middle; }
.ftype { font-size: .72rem; font-weight: 800; letter-spacing: .02em; background: var(--ink); color: var(--paper); border-radius: 4px; padding: .12rem .4rem; }

/* fechas */
.date-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .25rem; }
.date-list li { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr); gap: .85rem; align-items: center; padding: .55rem 0; border-bottom: 1px solid var(--line); }
.date-list time { display: grid; text-align: center; border-radius: 6px; background: var(--surface); border: 1px solid var(--line); border-top: 5px solid var(--muted); padding: .2rem 0 .3rem; line-height: 1.05; }
.date-list li[data-k="examen"] time { border-top-color: var(--c-investigacion); }
.date-list li[data-k="entrega"] time { border-top-color: var(--c-clase); }
.d-num { font: 780 1.35rem/1.1 var(--sans); font-stretch: 112%; }
.d-mon { font-size: .78rem; color: var(--muted); font-weight: 600; }
.d-title { margin: 0; font-weight: 650; line-height: 1.3; }
.d-meta { margin: .15rem 0 0; font-size: .88rem; color: var(--muted); }
.d-meta a { color: inherit; }
.d-meta strong { color: var(--ink); }
.classes .dates > h2, .course .dates > h2 { padding-top: 0; }
.course-side { display: grid; gap: 2rem; }
.course .resources > h2 { padding-top: 0; }
.res-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.res-list a { display: grid; gap: .3rem; text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--c-clase); border-radius: var(--radius); padding: .9rem 1.1rem; }
.res-list a strong::after { content: " →"; }
.res-list a.res-ext strong::after { content: " ↗"; }
.res-list a.res-doc strong::after { content: ""; }
.res-list a.res-doc strong::before { content: "PDF"; display: inline-block; margin-right: .45rem; padding: .05rem .35rem; border-radius: 4px; font-size: .72rem; font-weight: 800; letter-spacing: .02em; vertical-align: .15em; color: #fff; background: #b3261e; }
.res-list small { color: var(--muted); font-size: .82rem; font-weight: 600; }
.res-list a:hover strong { text-decoration: underline; }
.res-list span { color: var(--muted); font-size: .92rem; line-height: 1.45; }
@media (max-width: 58rem) { .course .course-side { order: -1; } }

/* ---------------------------------------------------------------- entrada */
.post { max-width: 46rem; margin: 0 auto; padding: clamp(2rem, 5vw, 3.5rem) 1rem 2rem; }
.post-head h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.05; }
.dek { font-family: var(--serif); font-size: 1.3rem; line-height: 1.5; color: var(--muted); margin: 1rem 0 0; }
.post-head .meta { margin-top: 1.1rem; font-size: .93rem; }
.draft-note { background: var(--ink); color: var(--paper); display: inline-block; padding: .3rem .7rem; border-radius: 6px; font-weight: 600; font-size: .92rem; }
.post-cover { margin: 2rem 0 0; }
.post-cover img { width: 100%; max-height: min(34rem, 70vh); object-fit: cover; border-radius: var(--radius); display: block; }
.post-media { margin-top: 2rem; }
.post-media audio, .ep-in audio { width: 100%; display: block; }
.post-media video { width: 100%; border-radius: var(--radius); background: #000; display: block; }
.media-dl { font-size: .9rem; margin-top: .5rem; }
.book-card { margin-top: 2rem; display: flex; gap: 1.25rem; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
.book-card img { width: 6rem; border-radius: 2px 4px 4px 2px; box-shadow: 0 6px 14px -6px rgb(0 0 0 / .4); }
.book-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .3rem .9rem; }
.book-card dt { color: var(--muted); font-size: .9rem; }
.book-card dd { margin: 0; font-weight: 650; }

.prose { font-family: var(--serif); font-size: 1.17rem; line-height: 1.68; margin-top: 2rem; font-optical-sizing: auto; }
.prose > * { max-width: 40rem; }
.prose h2, .prose h3, .prose h4 { font-family: var(--sans); margin: 2.2rem 0 .7rem; line-height: 1.2; }
.prose h2 { font-size: 1.55rem; }
.prose h3 { font-size: 1.25rem; }
.prose h4 { font-size: 1.05rem; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.15rem; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: .35rem; }
.prose li::marker { color: var(--accent); }
.prose a { color: var(--accent); }
.prose blockquote { margin: 1.6rem 0; padding: .2rem 0 .2rem 1.25rem; border-left: 4px solid var(--accent); font-style: italic; }
.prose blockquote p:last-child { margin-bottom: 0; }
.prose figure { margin: 2rem 0; }
.prose figure img { border-radius: var(--radius); display: block; }
.prose figcaption { font: .9rem/1.4 var(--sans); color: var(--muted); margin-top: .5rem; }
.prose hr { border: 0; height: 1px; background: var(--line); margin: 2.5rem 0; }
.prose code { font-size: .9em; background: var(--grid); padding: .05em .3em; border-radius: 4px; }
.prose-intro { margin-top: 0; margin-bottom: 1.5rem; font-size: 1.1rem; }

.yt { position: relative; aspect-ratio: 16 / 9; background: #000; border-radius: var(--radius); overflow: hidden; margin: 1.5rem 0; }
.post-media .yt, .ep-in .yt { margin: 0; }
.yt img { width: 100%; height: 100%; object-fit: cover; display: block; opacity: .85; }
.yt iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.yt-play { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .6rem; background: rgb(0 0 0 / .25); border: 0; color: #fff; font: 600 1rem var(--sans); cursor: pointer; padding: 1rem; text-shadow: 0 1px 3px rgb(0 0 0 / .6); }
.yt-play svg { width: 4.2rem; height: 4.2rem; fill: #fff; background: rgb(18 38 58 / .85); border-radius: 50%; padding: 1.05rem 1rem 1.05rem 1.2rem; }
.yt-play:hover svg { background: var(--c-episodio); }

.materials { margin-top: 2.5rem; }
.materials ul { list-style: none; margin: .8rem 0 0; padding: 0; display: grid; gap: .5rem; }
.materials a { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: .75rem; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .75rem .9rem; text-decoration: none; }
.materials a:hover { border-color: var(--ink); }
.fname { font-weight: 600; overflow-wrap: anywhere; }
.fsize { color: var(--muted); font-size: .88rem; }
.post-foot { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); display: grid; gap: 1rem; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; }
.tags a { font-size: .88rem; font-weight: 600; text-decoration: none; border: 1px solid var(--line); border-radius: 6px; padding: .25rem .6rem; background: var(--surface); }
.tags a:hover { border-color: var(--ink); }
.share { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.share-ok { color: var(--c-clase); font-weight: 600; font-size: .92rem; }
.related { max-width: 46rem; margin: 0 auto; padding: 1rem 1rem 3rem; }
.related > h2 { padding-top: 1.5rem; border-top: 3px solid var(--ink); }

.about-body { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: 2rem; align-items: start; margin-top: 2rem; }
.about-body .prose { margin-top: 0; }
.about-photo { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius); }
.about-logo { width: 100%; height: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: .75rem; box-sizing: border-box; }
.about-body:not(:has(img)) { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 40rem) { .about-body { grid-template-columns: minmax(0, 1fr); } .about-photo { max-width: 14rem; } }

/* ---------------------------------------------------------------- glosario y búsqueda */
.filter { display: grid; gap: .3rem; max-width: 26rem; margin-top: 1.25rem; font-weight: 600; font-size: .95rem; }
input[type="search"] { font: inherit; font-weight: 400; color: var(--ink); background: var(--surface); border: 1px solid color-mix(in srgb, var(--ink) 30%, transparent); border-radius: var(--radius); padding: .65rem .8rem; min-height: 2.75rem; width: 100%; }
.az { display: flex; flex-wrap: wrap; gap: .25rem; margin-top: 1rem; }
.az a { min-width: 2.25rem; min-height: 2.25rem; display: inline-grid; place-items: center; font-weight: 700; text-decoration: none; border-radius: 6px; border: 1px solid var(--line); background: var(--surface); }
.az a:hover { border-color: var(--ink); }
.glossary { display: grid; gap: 1.5rem; }
.gl-group { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 1rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.gl-group h2 { font-size: 2.4rem; font-stretch: 120%; line-height: 1; color: var(--muted); }
.gl-group dl { margin: 0; display: grid; gap: 1.2rem; }
.gl-item { max-width: 44rem; border-radius: 6px; }
.gl-item:target { background: var(--surface); outline: 2px solid var(--ink); outline-offset: .5rem; }
.gl-item dt { font: 700 1.15rem/1.25 var(--sans); font-stretch: 108%; }
.gl-item dd { margin: .25rem 0 0; font-family: var(--serif); font-size: 1.08rem; line-height: 1.6; }
@media (max-width: 34rem) { .gl-group { grid-template-columns: minmax(0, 1fr); gap: .5rem; } .gl-group h2 { font-size: 1.8rem; } }
.search { display: flex; gap: .5rem; margin-top: 1.25rem; max-width: 36rem; }
.result-count { color: var(--muted); }
.search-terms { margin: 0 0 1.5rem; display: grid; gap: 1rem; padding: 1rem 1.15rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.search-terms dt { font-weight: 700; }
.search-terms dd { margin: .2rem 0 0; color: var(--muted); }

/* ---------------------------------------------------------------- pie */
.foot { border-top: 1px solid var(--line); background: var(--surface); margin-top: 1rem; }
.foot-in { max-width: var(--wrap); margin: 0 auto; padding: 2.5rem 1rem 1.5rem; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.foot-brand p { color: var(--muted); margin-top: .6rem; max-width: 22rem; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; }
.foot a { text-decoration: none; }
.foot a:hover { text-decoration: underline; }
.foot-follow > p { font-weight: 700; margin-bottom: .6rem; }
.foot-legal { max-width: var(--wrap); margin: 0 auto; padding: 0 1rem 2rem; color: var(--muted); font-size: .88rem; }
@media (max-width: 44rem) { .foot-in { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

@media print {
  .top, .foot, .share, .admin-bar, .related { display: none; }
  body { background: #fff; color: #000; }
}

/* ---------------------------------------------------------------- programación de sesiones */
.plan { display: grid; gap: 1.25rem; }
.plan > * { max-width: 56rem; }
.plan-tri { margin: 1.25rem 0 0; font-size: 1.05rem; color: var(--muted); }
.plan-sa { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.15rem 1.25rem; display: grid; gap: 1rem; }
.plan-sa-head h3 { font-size: 1.3rem; line-height: 1.2; margin: .15rem 0 .5rem; }
.plan-sa-head p { margin: .4rem 0 0; color: var(--muted); }
.plan-code { font-weight: 700; font-size: .9rem; color: var(--c-clase) !important; margin: 0 !important; }
.plan-product strong { color: var(--ink); }
.plan-sa details { margin-top: .75rem; }
.plan-sa summary { cursor: pointer; font-weight: 650; color: var(--accent); }
.plan-dl { margin: .75rem 0 0; display: grid; gap: .6rem; }
.plan-dl dt { font-weight: 700; }
.plan-dl dd { margin: .15rem 0 0; color: var(--muted); }
.plan-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.plan-list a { display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); gap: .75rem; align-items: start; text-decoration: none; padding: .55rem .5rem; border-radius: 8px; }
.plan-list a:hover { background: var(--paper); }
.plan-list a:hover strong { text-decoration: underline; }
.plan-n { display: grid; place-items: center; height: 2.2rem; border-radius: 8px; background: color-mix(in srgb, var(--c-clase) 12%, transparent); color: var(--c-clase); font-weight: 750; font-variant-numeric: tabular-nums; }
.plan-t { display: grid; gap: .1rem; }
.plan-t small { color: var(--muted); font-size: .9rem; line-height: 1.4; }
.plan-links { margin: .25rem 0 0; padding-left: 1.1rem; display: grid; gap: .3rem; }
.res-list a.res-plan strong::after { content: " →"; }

.session-num { font-weight: 700; color: var(--c-clase); margin: .6rem 0 .2rem; font-variant-numeric: tabular-nums; }
.session-tags { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.session-tags li { font-size: .88rem; font-weight: 600; padding: .2rem .6rem; border-radius: 6px; background: color-mix(in srgb, var(--ink) 7%, transparent); }
.session-tags a { text-decoration: none; }
.session-curr { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: .75rem; margin: 1.75rem 0 0; }
.session-curr div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; }
.session-curr dt { font-weight: 700; font-size: .9rem; color: var(--muted); }
.session-curr dd { margin: .2rem 0 0; font-weight: 650; }
.session h2 { font-size: 1.25rem; margin: 2rem 0 .75rem; }
.session-bar { display: flex; gap: 3px; height: .6rem; border-radius: 6px; overflow: hidden; margin-bottom: 1rem; }
.session-bar span, .session-steps li::before { background: var(--c-clase); }
.session-bar [data-i="1"], .session-steps [data-i="1"]::before { background: var(--c-investigacion); }
.session-bar [data-i="2"], .session-steps [data-i="2"]::before { background: var(--c-episodio); }
.session-bar [data-i="3"], .session-steps [data-i="3"]::before { background: var(--c-lectura); }
.session-bar [data-i="4"], .session-steps [data-i="4"]::before { background: var(--muted); }
.session-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.session-steps li { position: relative; display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem 1rem .9rem 1.25rem; }
.session-steps li::before { content: ""; position: absolute; left: 0; top: .75rem; bottom: .75rem; width: 4px; border-radius: 0 3px 3px 0; }
.step-time { margin: 0; font-size: .88rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.step-time span { display: block; font-size: 1.05rem; font-weight: 750; color: var(--ink); }
.session-steps h3 { font-size: 1.05rem; margin: 0 0 .25rem; }
.session-steps p { margin: 0; line-height: 1.55; }
@media (max-width: 34rem) { .session-steps li { grid-template-columns: minmax(0, 1fr); gap: .35rem; } .step-time span { display: inline; margin-right: .4rem; } }
.session-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 0 2rem; }
.session-nav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); font-weight: 650; }
@media print { .top, .foot, .session-nav { display: none !important; } .session-steps li, .session-curr div, .plan-sa { break-inside: avoid; } }
.session-bar .m1 { flex-grow: 1; }
.session-bar .m2 { flex-grow: 2; }
.session-bar .m3 { flex-grow: 3; }
.session-bar .m4 { flex-grow: 4; }
.session-bar .m5 { flex-grow: 5; }
.session-bar .m6 { flex-grow: 6; }
.session-bar .m7 { flex-grow: 7; }
.session-bar .m8 { flex-grow: 8; }
.session-bar .m9 { flex-grow: 9; }
.session-bar .m10 { flex-grow: 10; }
.session-bar .m11 { flex-grow: 11; }
.session-bar .m12 { flex-grow: 12; }
.session-bar .m13 { flex-grow: 13; }
.session-bar .m14 { flex-grow: 14; }
.session-bar .m15 { flex-grow: 15; }
.session-bar .m16 { flex-grow: 16; }
.session-bar .m17 { flex-grow: 17; }
.session-bar .m18 { flex-grow: 18; }
.session-bar .m19 { flex-grow: 19; }
.session-bar .m20 { flex-grow: 20; }
.session-bar .m21 { flex-grow: 21; }
.session-bar .m22 { flex-grow: 22; }
.session-bar .m23 { flex-grow: 23; }
.session-bar .m24 { flex-grow: 24; }
.session-bar .m25 { flex-grow: 25; }
.session-bar .m26 { flex-grow: 26; }
.session-bar .m27 { flex-grow: 27; }
.session-bar .m28 { flex-grow: 28; }
.session-bar .m29 { flex-grow: 29; }
.session-bar .m30 { flex-grow: 30; }
.session-bar .m31 { flex-grow: 31; }
.session-bar .m32 { flex-grow: 32; }
.session-bar .m33 { flex-grow: 33; }
.session-bar .m34 { flex-grow: 34; }
.session-bar .m35 { flex-grow: 35; }
.session-bar .m36 { flex-grow: 36; }
.session-bar .m37 { flex-grow: 37; }
.session-bar .m38 { flex-grow: 38; }
.session-bar .m39 { flex-grow: 39; }
.session-bar .m40 { flex-grow: 40; }
.session-bar .m41 { flex-grow: 41; }
.session-bar .m42 { flex-grow: 42; }
.session-bar .m43 { flex-grow: 43; }
.session-bar .m44 { flex-grow: 44; }
.session-bar .m45 { flex-grow: 45; }
.session-bar .m46 { flex-grow: 46; }
.session-bar .m47 { flex-grow: 47; }
.session-bar .m48 { flex-grow: 48; }
.session-bar .m49 { flex-grow: 49; }
.session-bar .m50 { flex-grow: 50; }

.plan-progress { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; margin-top: 1rem; color: var(--muted); }
.plan-progress b { color: var(--ink); }
.plan-meter { display: flex; width: min(16rem, 100%); height: .55rem; border-radius: 5px; overflow: hidden; gap: 2px; }
.plan-meter span { background: var(--c-clase); }
.plan-meter .rest { background: var(--line); }
.plan-week { font-size: .85rem; font-weight: 700; color: var(--muted); padding: .6rem .5rem .1rem; }
.plan-print small { color: var(--muted); font-weight: 700; font-size: .75rem; }
.plan-meter .m1 { flex-grow: 1; }
.plan-meter .m2 { flex-grow: 2; }
.plan-meter .m3 { flex-grow: 3; }
.plan-meter .m4 { flex-grow: 4; }
.plan-meter .m5 { flex-grow: 5; }
.plan-meter .m6 { flex-grow: 6; }
.plan-meter .m7 { flex-grow: 7; }
.plan-meter .m8 { flex-grow: 8; }
.plan-meter .m9 { flex-grow: 9; }
.plan-meter .m10 { flex-grow: 10; }
.plan-meter .m11 { flex-grow: 11; }
.plan-meter .m12 { flex-grow: 12; }
.plan-meter .m13 { flex-grow: 13; }
.plan-meter .m14 { flex-grow: 14; }
.plan-meter .m15 { flex-grow: 15; }
.plan-meter .m16 { flex-grow: 16; }
.plan-meter .m17 { flex-grow: 17; }
.plan-meter .m18 { flex-grow: 18; }
.plan-meter .m19 { flex-grow: 19; }
.plan-meter .m20 { flex-grow: 20; }
.plan-meter .m21 { flex-grow: 21; }
.plan-meter .m22 { flex-grow: 22; }
.plan-meter .m23 { flex-grow: 23; }
.plan-meter .m24 { flex-grow: 24; }
.plan-meter .m25 { flex-grow: 25; }
.plan-meter .m26 { flex-grow: 26; }
.plan-meter .m27 { flex-grow: 27; }
.plan-meter .m28 { flex-grow: 28; }
.plan-meter .m29 { flex-grow: 29; }
.plan-meter .m30 { flex-grow: 30; }
.plan-meter .m31 { flex-grow: 31; }
.plan-meter .m32 { flex-grow: 32; }
.plan-meter .m33 { flex-grow: 33; }
.plan-meter .m34 { flex-grow: 34; }
.plan-meter .m35 { flex-grow: 35; }
.plan-meter .m36 { flex-grow: 36; }
.plan-meter .m37 { flex-grow: 37; }
.plan-meter .m38 { flex-grow: 38; }
.plan-meter .m39 { flex-grow: 39; }
.plan-meter .m40 { flex-grow: 40; }
.plan-meter .m41 { flex-grow: 41; }
.plan-meter .m42 { flex-grow: 42; }
.plan-meter .m43 { flex-grow: 43; }
.plan-meter .m44 { flex-grow: 44; }
.plan-meter .m45 { flex-grow: 45; }
.plan-meter .m46 { flex-grow: 46; }
.plan-meter .m47 { flex-grow: 47; }
.plan-meter .m48 { flex-grow: 48; }
.plan-meter .m49 { flex-grow: 49; }
.plan-meter .m50 { flex-grow: 50; }

/* ---------------------------------------------------------------- sesión: cabecera, voces, personajes y línea del tiempo */
.session-hero { margin: 0 0 1.5rem; }
.session-hero img { display: block; width: 100%; height: auto; aspect-ratio: 5 / 2; object-fit: cover; border-radius: var(--r-big, 18px); box-shadow: 0 18px 40px -28px rgb(19 33 58 / .6); }
.listen { margin-top: 2rem; display: grid; gap: .9rem; }
.listen > h2 { margin: 0; }
.listen-help { margin: 0; color: var(--muted); font-size: .95rem; }
.voice-card { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1rem; align-items: start; background: color-mix(in srgb, var(--c-episodio) 8%, var(--surface)); border: 1px solid color-mix(in srgb, var(--c-episodio) 25%, var(--line)); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.voice-card h3 { margin: 0 0 .35rem; font-size: 1.1rem; }
.voice-card p { margin: 0; line-height: 1.6; font-size: 1.05rem; }
.voice-card:not(:has(.say:not([hidden]))) { grid-template-columns: minmax(0, 1fr); }
.say { display: inline-flex; align-items: center; gap: .45rem; border: 0; border-radius: 999px; background: var(--c-episodio); color: #fff; font: 700 .95rem/1 var(--sans); padding: .7rem 1.05rem .7rem .85rem; cursor: pointer; white-space: nowrap; }
.say svg { width: 1.3rem; height: 1.3rem; fill: currentColor; }
.say svg .w { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.say[aria-pressed="true"] { background: var(--ink); color: var(--surface); }
.say:focus-visible { outline: 3px solid color-mix(in srgb, var(--c-episodio) 45%, transparent); outline-offset: 2px; }
@media (prefers-reduced-motion: no-preference) { .say[aria-pressed="true"] svg .w { animation: sayw 1s ease-in-out infinite; } @keyframes sayw { 50% { opacity: .2; } } }
.say-sm { padding: .5rem .85rem .5rem .7rem; font-size: .88rem; }
@media (prefers-color-scheme: dark) { .say { color: #0c1320; } }
.chars { display: grid; grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr)); gap: .8rem; }
.char { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: .85rem; align-items: start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem; }
.char-pic { width: 4.5rem; height: 4.5rem; border-radius: 50%; display: block; }
.char-ini { display: grid; place-items: center; background: var(--c-episodio); color: #fff; font-weight: 800; font-size: 1.35rem; }
.char-role { margin: 0; font-size: .8rem; font-weight: 700; color: var(--c-episodio); }
.char h3 { margin: .1rem 0 .35rem; font-size: 1.05rem; }
.char p:not(.char-role) { margin: 0 0 .6rem; font-size: .95rem; line-height: 1.5; color: var(--muted); }
.session-steps { position: relative; gap: .75rem; }
.session-steps::before { content: ""; position: absolute; left: 1.35rem; top: 1rem; bottom: 1rem; width: 2px; background: var(--line); }
.session-steps li { grid-template-columns: 2.75rem minmax(0, 1fr); gap: .9rem; background: transparent; border: 0; padding: 0; }
.session-steps li::before { display: none; }
.session-steps li > div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: .85rem 1rem; }
.step-icon { position: relative; z-index: 1; width: 2.75rem; height: 2.75rem; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--c-clase); box-shadow: 0 0 0 4px var(--paper); }
.step-icon svg { width: 1.35rem; height: 1.35rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.session-steps [data-i="1"] .step-icon { background: var(--c-investigacion); }
.session-steps [data-i="2"] .step-icon { background: var(--c-episodio); }
.session-steps [data-i="3"] .step-icon { background: var(--c-lectura); }
.session-steps [data-i="4"] .step-icon { background: var(--muted); }
@media (prefers-color-scheme: dark) { .step-icon { color: #0c1320; } }
.step-time { margin: 0 0 .15rem; }
.step-time span { display: inline; font-size: .95rem; }
@media (max-width: 34rem) { .session-steps li { grid-template-columns: 2.75rem minmax(0, 1fr); gap: .6rem; } .voice-card { grid-template-columns: minmax(0, 1fr); } .char { grid-template-columns: 3.5rem minmax(0, 1fr); } .char-pic { width: 3.5rem; height: 3.5rem; } }
@media print { .say { display: none !important; } }
.session-painting { margin: 0 auto 1.75rem; max-width: 34rem; display: grid; gap: .6rem; justify-items: center; }
.session-painting .frame { padding: .7rem; background: linear-gradient(135deg, #c9a24a, #8a6d1f 45%, #e2c070 70%, #8a6d1f); border-radius: 4px; box-shadow: 0 18px 36px -22px rgb(19 33 58 / .7), inset 0 0 0 2px rgb(0 0 0 / .15); }
.session-painting img { display: block; width: 100%; height: auto; border: 3px solid #4a3a0c; }
.session-painting figcaption { font-size: .85rem; color: var(--muted); text-align: center; line-height: 1.45; }