:root {
  --bg: #F7F6F2; --ink: #21231F; --ink-soft: #5B5D57; --line: #DEDBD2;
  --accent: #576F6F; --accent-soft: #E0E0E0; --nota-bg: #D4DBDC; --amber: #C0812E; --surface: #FFFFFF;
  --barra: 228, 222, 217; /* color de cabecera y footer (en RGB para poder darle transparencia) */
  padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg:#171815; --ink:#EDEBE4; --ink-soft:#A3A69B; --line:#33352E; --accent:#A5BEBE; --accent-soft:#272727; --nota-bg:#2A3336; --amber:#D69B4B; --surface:#1E1F1B; --barra: 36, 37, 32; }
}
:root[data-theme="dark"] { --bg:#171815; --ink:#EDEBE4; --ink-soft:#A3A69B; --line:#33352E; --accent:#A5BEBE; --accent-soft:#272727; --nota-bg:#2A3336; --amber:#D69B4B; --surface:#1E1F1B; --barra: 36, 37, 32; }

* { box-sizing: border-box; }
/* Al saltar a un #ancla, deja libre la altura real de la cabecera fija (la calcula script.js) */
html { scroll-behavior: smooth; scroll-padding-top: var(--alto-cabecera, 64px); }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: 'Space Grotesk', system-ui, sans-serif; line-height: 1.55; -webkit-font-smoothing: antialiased; }
.mono { font-family: 'JetBrains Mono'; }
/* Mismo ancho que la cabecera */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header / nav superior (compartido en todas las páginas) */
header { position: sticky; top: 0; top: env(safe-area-inset-top, 0px); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); z-index: 20; }
.nav { max-width: 1200px; margin: 0 auto; padding: 24px 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 700; font-size: 1.05rem; text-decoration: none; color: var(--ink); }
.logo-nombre span { color: var(--accent); }
/* Ruta de la sección actual en el logo, como en un terminal: ~/gráfica.interactiva/programacion-i */
.logo-ruta { font-family: 'JetBrains Mono', monospace; font-weight: 500; font-size: 0.85em; color: var(--ink-soft); }
.logo-ruta::before { content: "/"; }
.navlinks { display: flex; gap: 26px; font-size: 0.92rem; color: var(--ink-soft); }
.navlinks a { color: inherit; text-decoration: none; }
.nav-sep { width: 1px; background: #5B5D57; flex-shrink: 0; }
.navlinks a.active, .navlinks a:hover { color: var(--ink); }
/* Aire de código en la cabecera */
/* 1. Logo como ruta de terminal: ~/gráfica.interactiva */
.logo::before { content: ""; font-family: 'JetBrains Mono', monospace; font-weight: 500; font-size: 0.9em; color: var(--accent); margin-right: 1px; }
/* 2. La sección activa, entre corchetes, como en código */
/* La sección activa, resaltada como un texto seleccionado en el editor */
.navlinks a.active { background: var(--accent-soft); color: var(--ink); font-weight: 500; padding: 3px 8px; margin: -3px -8px; border-radius: 4px; }

.btn { font-family: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer; padding: 10px 18px; border-radius: 3px; border: 1px solid transparent; text-decoration: none; display: inline-block; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: #9DAEB3; color: #21231F; }
.sidebar-toggle { display: none; font-family: inherit; font-size: 0.85rem; font-weight: 600; background: var(--ink); color: var(--bg); border: none; border-radius: 3px; padding: 8px 14px; cursor: pointer; }
/* Botón hamburguesa (solo visible en móvil y tablet) */
.menu-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 36px; padding: 0 9px; background: none; border: 1px solid var(--line); border-radius: 3px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 1px; transition: transform 0.2s ease, opacity 0.2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.menu-toggle:focus-visible, .sidebar-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
footer { padding: 12px 0 14px; background: rgba(var(--barra), 0.85); }
/* Mismo ancho que la cabecera */
.foot-row { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; color: var(--ink-soft); font-size: 0.8rem; }
/* En el footer todo el texto es gris y sin subrayar, también los enlaces */
.foot-row a, .foot-row a:hover { color: inherit; text-decoration: none; }
.foot-row a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Página de inicio (index.html) ---------- */
.hero { padding: 88px 0 64px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.kicker { font-family: 'JetBrains Mono'; font-size: 0.82rem; color: var(--accent); margin: 0 0 14px; }
h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 20px; font-weight: 700; }
.lede { color: var(--ink-soft); font-size: 1.08rem; max-width: 46ch; margin: 0 0 30px; }
.hero-ctas { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.link-quiet { color: var(--ink); font-size: 0.92rem; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line); }
.term { background: var(--ink); color: var(--bg); border-radius: 6px; padding: 20px 22px; font-family: 'JetBrains Mono'; font-size: 0.85rem; overflow-x: auto; }
.term-bar { display: flex; gap: 6px; margin-bottom: 14px; }
.term-bar span { width: 9px; height: 9px; border-radius: 50%; background: color-mix(in srgb, var(--bg) 30%, transparent); }
.term-bar span:first-child { background: #c4723c; }
.term pre { margin: 0; white-space: pre; }
/* Animación de escritura del terminal (la prepara script.js).
   El cursor es el borde derecho de cada línea: avanza con el texto mientras se escribe
   y, al terminar, se queda parpadeando al final de la última línea. */
.term-linea { display: inline-block; vertical-align: top; white-space: pre; }
.term pre.preparando .term-linea { visibility: hidden; }
.term pre.escribiendo .term-linea { box-sizing: content-box; width: 0; overflow: hidden; border-right: 0.55em solid transparent;
  animation: term-escribir calc(var(--n) * 32ms) steps(var(--n), end) var(--d) forwards,
             term-cursor-activo calc(var(--n) * 32ms) step-end var(--d); }
.term pre.escribiendo .term-linea:last-child {
  animation: term-escribir calc(var(--n) * 32ms) steps(var(--n), end) var(--d) forwards,
             term-cursor-activo calc(var(--n) * 32ms) step-end var(--d),
             term-parpadeo-borde 1s steps(1) calc(var(--d) + var(--n) * 32ms) infinite; }
@keyframes term-escribir { to { width: var(--ancho); } }
.term pre.escribiendo .term-linea.escrita { width: auto; overflow: visible; animation: none; border-right-color: transparent; }
.term pre.escribiendo .term-linea.escrita:last-child { animation: term-parpadeo-borde 1s steps(1) infinite; }
@keyframes term-cursor-activo { from, to { border-right-color: #9DAEB3; } }
@keyframes term-parpadeo-borde { 0% { border-right-color: #9DAEB3; } 50% { border-right-color: transparent; } }
/* Cursor fijo (cuando el sistema pide reducir el movimiento) */
.term-cursor { display: inline-block; width: 0.55em; height: 1.15em; background: #9DAEB3; vertical-align: text-bottom; }
.term .c1 { color: #9DAEB3; } .term .c2 { color: #E0B978; }
.term a { color: inherit; text-decoration: none; }
/* Símbolo tipo código delante de cada enlace del terminal: se añade solo, también a los enlaces que pongas más adelante */
.term a::before { content: "./"; display: inline-block; color: #9DAEB3; margin-right: 0.6ch; }
.term a:hover { background: #9DAEB3; color: #21231F; }
.term a:hover::before { color: inherit; }

section { padding: 64px 0; border-bottom: 1px solid var(--line); }
/* Al saltar a una sección (#enlaces, #temas…) se descuenta parte de su relleno superior,
   para que el título quede cerca de la cabecera y no tras un hueco vacío */
section[id] { scroll-margin-top: -40px; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
h2 { font-size: 1.6rem; letter-spacing: -0.01em; margin: 0; font-weight: 600; }
.section-note { color: var(--ink-soft); font-size: 0.92rem; max-width: 34ch; margin: 0; }

.courses { display: flex; flex-direction: column; }
.course-row { display: grid; grid-template-columns: 90px 1fr auto; gap: 20px; align-items: center; padding: 22px 0; border-top: 1px solid var(--line); text-decoration: none; color: inherit; }
.course-row:last-child { border-bottom: none; }
.course-tag { font-family: 'JetBrains Mono'; font-size: 0.78rem; color: var(--accent); }
.course-title { font-weight: 600; font-size: 1.05rem; margin: 0 0 4px; }
.course-desc { color: var(--ink-soft); font-size: 0.92rem; margin: 0; }
.course-meta { font-size: 0.85rem; color: var(--ink-soft); white-space: nowrap; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step-num { font-family: 'JetBrains Mono'; font-size: 0.82rem; color: var(--ink-soft); margin: 0 0 10px; }
.step h3 { font-size: 1.05rem; margin: 0 0 8px; font-weight: 600; }
.step p { color: var(--ink-soft); font-size: 0.92rem; margin: 0; }
.step a { color: var(--accent); text-underline-offset: 3px; }

.stat-band { background: var(--accent-soft); border-radius: 6px; padding: 36px 32px; display: flex; gap: 48px; flex-wrap: wrap; }
.stat b { display: block; font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; }
.stat span { color: var(--ink-soft); font-size: 0.88rem; }
.cta h2 { font-size: 2rem; max-width: 20ch; margin-bottom: 14px; }
.cta p { color: var(--ink-soft); max-width: 44ch; margin: 0 0 26px; }

@media (max-width: 780px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } .hero { padding: 56px 0 48px; } }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .course-row { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- Páginas de temario con menú lateral (html.html, css.html, js.html) ---------- */
.layout { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 290px 1fr; gap: 40px; align-items: start; }
/* Menú lateral: deja hueco fijo para la barra de scroll (que no se pegue a las cruces) y la hace fina */
aside { position: sticky; top: var(--alto-cabecera, 64px); align-self: start; max-height: calc(100vh - var(--alto-cabecera, 64px)); overflow-y: auto; padding: 28px 14px 40px 0;
  scrollbar-gutter: stable; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.tema { border-bottom: 1px solid var(--line); }
.tema-btn { width: 100%; background: none; border: none; font-family: inherit; color: var(--ink); text-align: left; cursor: pointer; padding: 12px 4px; display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 0.95rem; font-weight: 600; }
.tema-icon { font-family: 'JetBrains Mono'; font-size: 0.95rem; color: var(--accent); width: 16px; text-align: center; flex-shrink: 0; }
.subtemas-wrap { overflow: hidden; max-height: 0; transition: max-height 0.25s ease; }
.subtemas { list-style: none; margin: 0; padding: 2px 4px; display: grid; gap: 2px; }
.subtemas a { display: block; font-size: 0.85rem; color: var(--ink-soft); text-decoration: none; padding: 7px 10px 7px 26px; border-radius: 3px; }
.subtemas a:hover { color: var(--ink); }
.subtemas a.active { color: var(--ink); background: var(--accent-soft); font-weight: 500; }

main { padding: 40px 0 100px; min-width: 0; }
.tema-block { padding-bottom: 56px; }
.tema-block h2 { font-size: 1.7rem; letter-spacing: -0.01em; margin: 0 0 8px; font-weight: 700; }
/* Títulos de los temas con almohadilla, como en Markdown: # Tema 1 · … */
.tema-block > h2::before { content: "# "; font-family: 'JetBrains Mono', monospace; font-weight: 400; font-size: 0.85em; color: var(--accent); }
.tema-block > p.intro { color: var(--ink-soft); margin: 0 0 36px; max-width: 60ch; }
.subtema-block { padding: 30px 0; border-top: 1px solid var(--line); }
.subtema-block:first-of-type { border-top: none; }
.subtema-block h3 { font-size: 1.15rem; margin: 0 0 10px; font-weight: 600; }
.subtema-block p { color: var(--ink-soft); max-width: 66ch; margin: 0 0 14px; }
.code { background: var(--ink); color: var(--bg); border-radius: 6px; padding: 16px 18px; font-family: 'JetBrains Mono'; font-size: 0.82rem; overflow-x: auto; }
/* Contenido de los apuntes */
/* Sin ligaduras: JetBrains Mono une «<!--», «-->», «!=»… en un solo símbolo y en clase hay que ver cada carácter */
.code, .subtema-block code, .subtema-block kbd, .term { font-variant-ligatures: none; font-feature-settings: "liga" 0, "calt" 0; }
pre.code { margin: 0 0 18px; white-space: pre; line-height: 1.6; max-width: 100%; }
.subtema-block h4 { font-size: 0.98rem; margin: 26px 0 8px; font-weight: 600; }
.subtema-block ul, .subtema-block ol { color: var(--ink-soft); max-width: 66ch; margin: 0 0 18px; padding-left: 22px; }
.subtema-block li { margin-bottom: 6px; }
.subtema-block strong { color: var(--ink); font-weight: 600; }
.subtema-block code, .subtema-block kbd { font-family: 'JetBrains Mono'; font-size: 0.85em; background: var(--accent-soft); color: var(--ink); padding: 1px 5px; border-radius: 3px; }
.subtema-block kbd { border: 1px solid var(--line); }
/* Avisos («Ojo», «Truco», «Idea clave»…): texto en el color principal para que se lea bien sobre el fondo */
.subtema-block p.nota { border-left: 3px solid var(--accent); background: var(--nota-bg); color: var(--ink); padding: 12px 16px; border-radius: 0 4px 4px 0; }
.subtema-block p.nota code { background: var(--surface); }
.subtema-block a { color: var(--accent); text-underline-offset: 3px; }
/* Línea de tiempo */
.linea-tiempo { list-style: none; padding: 0 !important; border-left: 2px solid var(--line); margin-left: 4px !important; }
.linea-tiempo li { display: grid; grid-template-columns: 84px 1fr; gap: 14px; position: relative; padding: 0 0 16px 18px; margin: 0; }
.linea-tiempo li::before { content: ""; position: absolute; left: -6px; top: 7px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.lt-year { font-size: 0.82rem; color: var(--accent); padding-top: 2px; }
/* Flujo de pasos (cliente → servidor) */
.flujo { list-style: none; padding: 0 !important; display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; max-width: none !important; }
.flujo-4 { grid-template-columns: repeat(4, 1fr); }
.flujo li { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 14px; margin: 0; display: flex; flex-direction: column; gap: 4px; font-size: 0.88rem; position: relative; }
.flujo li strong { font-size: 0.92rem; }
.flujo-n { font-size: 0.75rem; color: var(--accent); }
.flujo li:not(:last-child)::after { content: "→"; position: absolute; right: -12px; top: 50%; transform: translate(50%, -50%); color: var(--ink-soft); font-size: 0.9rem; }
/* Esquema de la estructura semántica */
.esquema { display: grid; grid-template-columns: 3fr 1fr; grid-template-areas: "header header" "main aside" "footer footer"; gap: 8px; max-width: 66ch; margin: 0 0 18px; font-family: 'JetBrains Mono'; font-size: 0.78rem; color: var(--ink-soft); font-variant-ligatures: none; }
.esquema > div, .e-box { border: 1px dashed var(--ink-soft); border-radius: 4px; padding: 10px; background: var(--surface); }
.e-box { margin-top: 8px; background: var(--accent-soft); color: var(--accent); }
.e-box .e-box { background: var(--surface); }
.e-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.esquema-demo { margin: 0 0 22px; }
.esquema-demo .esquema { max-width: none; margin: 0; font-size: 0.82rem; }
.esquema-demo .esquema > div, .esquema-demo .e-box { cursor: pointer; outline: none; transition: border-color 0.2s ease, background-color 0.2s ease; }
.esquema-demo .esquema > div { padding: 14px; min-height: 52px; }
.esquema-demo .e-row .e-box { min-height: 64px; }
/* Todo el esquema en la gama azulada: cada nivel, un poco más tintado */
.esquema-demo .esquema { color: var(--accent); }
.esquema-demo .esquema > div, .esquema-demo .e-box { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: var(--surface); color: var(--accent); }
.esquema-demo .esquema > div > .e-box { background: color-mix(in srgb, var(--nota-bg) 35%, var(--surface)); }
.esquema-demo .e-row .e-box { background: color-mix(in srgb, var(--nota-bg) 65%, var(--surface)); }
.esquema-demo .e-body > .e-nombre { color: var(--accent); }
.esquema-demo .esquema .activa { border-style: solid; border-color: var(--accent); background: var(--nota-bg); }
.esquema-demo .activa > .e-nombre { color: var(--accent); font-weight: 600; }
.esquema-demo [data-etiqueta]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.e-ventana { display: flex; align-items: center; gap: 6px; padding: 8px 12px; border: 1px solid var(--line); border-bottom: 0; border-radius: 8px 8px 0 0; background: var(--nota-bg); }
.e-ventana > span:not(.e-ventana-url) { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); opacity: 0.5; }
.e-ventana-url { flex: 1; margin-left: 10px; max-width: 260px; padding: 2px 12px; border-radius: 999px; background: var(--surface); font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--ink-soft); }
.e-body { padding: 12px; border: 1px solid var(--line); border-radius: 0 0 8px 8px; background: var(--bg); font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; color: var(--ink-soft); cursor: pointer; outline: none; transition: border-color 0.2s ease, background-color 0.2s ease; }
.e-body > .e-nombre { display: block; margin-bottom: 10px; }
.esquema-demo .e-body.activa { border-color: var(--accent); background: color-mix(in srgb, var(--nota-bg) 45%, var(--bg)); }
.e-info { margin-top: 12px; padding: 12px 14px; border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 6px 6px 0; min-height: 4.6em; }
.e-info-titulo.e-info-codigo { font-family: 'JetBrains Mono', monospace; }
.e-info-titulo { display: block; font-size: 0.9rem; color: var(--ink); margin-bottom: 4px; }
.subtema-block .e-info-texto { margin: 0; font-size: 0.86rem; }
@media print { .e-info { display: none; } }
.e-header { grid-area: header; } .e-main { grid-area: main; } .e-aside { grid-area: aside; } .e-footer { grid-area: footer; }
@media (max-width: 480px) { .esquema { grid-template-columns: 1fr; grid-template-areas: "header" "main" "aside" "footer"; } }
/* Índice de encabezados (jerarquía h1–h6) */
.indice-encabezados, .indice-encabezados ul { list-style: none; padding-left: 0 !important; margin: 0 !important; }
.indice-encabezados { margin: 0 0 18px !important; font-size: 0.85rem; }
.indice-encabezados ul { padding-left: 22px !important; border-left: 1px dashed var(--line); margin-left: 10px !important; }
.indice-encabezados li { margin: 6px 0; color: var(--ink); }
.indice-encabezados span { display: inline-block; min-width: 28px; margin-right: 10px; padding: 1px 6px; border-radius: 3px; background: var(--accent-soft); color: var(--accent); font-size: 0.75rem; text-align: center; }
.tabla mark { background: #F3E3A6; color: #21231F; padding: 0 3px; }
/* Caja «Resultado»: muestra cómo se ve el código de arriba */
.resultado { position: relative; max-width: 100%; margin: 0 0 18px; padding: 30px 18px 18px; border: 1px dashed var(--ink-soft); border-radius: 6px; background: var(--surface); }
/* Debajo de un bloque de código, el resultado se une a él: esquinas de arriba rectas */
pre.code + .resultado { margin-top: -8px; border-radius: 0 0 6px 6px; }
.resultado::before { content: "Resultado"; position: absolute; top: 8px; left: 18px; font-family: 'JetBrains Mono'; font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); }
.resultado .tabla { margin: 0; }
.resultado caption { caption-side: top; text-align: left; font-weight: 600; font-size: 0.9rem; padding-bottom: 8px; color: var(--ink); }
.tabla td[rowspan], .tabla td[colspan] { background: var(--accent-soft); color: var(--ink); }
.resultado tbody th { background: transparent; }
/* Formulario de ejemplo */
.form-demo { display: grid; gap: 6px; max-width: 360px; }
.form-demo label { font-size: 0.85rem; font-weight: 600; margin-top: 8px; }
.form-demo input, .form-demo select, .form-demo textarea { font: inherit; font-size: 0.9rem; padding: 8px 10px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg); color: var(--ink); }
.form-demo input:focus, .form-demo select:focus, .form-demo textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form-demo button { justify-self: start; margin-top: 12px; font: inherit; font-weight: 600; font-size: 0.88rem; padding: 9px 18px; border: none; border-radius: 3px; background: var(--ink); color: var(--bg); cursor: pointer; }
.form-demo-linea { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; }
.form-demo .form-demo-linea label, .form-demo label.form-demo-linea { margin-top: 0; font-weight: 400; }
.form-demo label.form-demo-linea { margin-top: 8px; }
.form-demo input[type="checkbox"], .form-demo input[type="radio"] { width: 16px; height: 16px; padding: 0; margin: 0; accent-color: var(--accent); }
.form-demo fieldset { margin: 0; padding: 8px 14px 12px; border: 1px solid var(--line); border-radius: 4px; display: grid; gap: 8px; }
.form-demo legend { padding: 0 6px; font-size: 0.85rem; font-weight: 600; }
.form-demo optgroup { font-weight: 600; }
.form-demo-botones > span { display: flex; gap: 8px; }
.form-demo .form-demo-sec { background: transparent; color: var(--ink); border: 1px solid var(--ink-soft); }
.tabla-wrap.tabla-ancha { max-width: none; }
.tabla-inputs td:last-child { min-width: 190px; }
.tabla-inputs input { font: inherit; font-size: 0.85rem; accent-color: var(--accent); }
.tabla-inputs input:is([type="text"], [type="email"], [type="tel"], [type="password"], [type="number"], [type="date"], [type="time"], [type="search"]) { width: 100%; max-width: 200px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg); color: var(--ink); }
.tabla-inputs input[type="range"] { width: 100%; max-width: 200px; }
.tabla-inputs input[type="file"] { font-size: 0.76rem; max-width: 220px; }
.tabla-inputs input[type="color"] { width: 48px; height: 30px; padding: 2px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); }
/* Muestras de color */
.muestras-color { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.muestra { display: flex; flex-direction: column; gap: 6px; font-size: 0.8rem; }
.muestra small { color: var(--ink-soft); }
.muestra-color { display: block; height: 56px; border-radius: 4px; border: 1px solid var(--line); }
.muestra-alpha { background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#ccc 0 25%, #fff 0 50%) 0 0 / 14px 14px; }
/* Diagrama del modelo de caja (colores como en el inspector del navegador) */
.caja-diagrama { font-family: 'JetBrains Mono'; font-size: 0.75rem; color: #21231F; }
.caja-diagrama > div, .caja-diagrama div div { position: relative; padding: 28px 22px 18px; border-radius: 3px; }
/* Cada capa es una franja de color (como en el inspector): la franja amarilla ES el borde */
.cd-margin { background: #F6D7A7; border: 1px dashed rgba(0, 0, 0, 0.35); }
.cd-border { background: #494845; border: 1px dashed rgba(0, 0, 0, 0.35); }
.cd-padding { background: #C9DDB3; border: 1px dashed rgba(0, 0, 0, 0.35); }
.caja-diagrama .cd-content { background: #A9C6DE; padding: 18px !important; text-align: center; }
.cd-label { position: absolute; top: 7px; left: 10px; }
.cd-border > .cd-label { color: #F7F6F2; font-weight: 600; }
/* Ejemplos en vivo de Flexbox y Grid */
.d-flex, .d-grid, .d-areas { gap: 8px; padding: 8px; background: var(--accent-soft); border: 1px dashed var(--ink-soft); border-radius: 4px; }
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-item { background: var(--accent); color: #fff; font-family: 'JetBrains Mono'; font-size: 0.8rem; padding: 10px 14px; border-radius: 3px; text-align: center; min-width: 40px; }
.d-alto { height: 110px; }
.d-grande { padding-top: 26px; padding-bottom: 26px; }
.demo-lista .demo-titulo { margin: 14px 0 6px; font-size: 0.8rem; color: var(--ink-soft); }
.demo-lista .demo-titulo:first-child { margin-top: 0; }
.d-areas { display: grid; grid-template-columns: 3fr 1fr; grid-template-areas: "cabecera cabecera" "principal lateral" "pie pie"; }
.d-areas .d-item[style*="principal"] { min-height: 90px; }
.d-areas-responsive { grid-template-columns: 1fr; grid-template-areas: "cabecera" "principal" "lateral" "pie"; }
@media (min-width: 1100px) { .d-areas-responsive { grid-template-columns: 3fr 1fr; grid-template-areas: "cabecera cabecera" "principal lateral" "pie pie"; } }
/* Ejemplos en vivo del Tema 6 */
.demo-lista .demo-texto { margin: 0 0 6px; max-width: 60ch; color: var(--ink); }
.d-sombras { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 22px; padding: 10px 6px; }
.d-tarjeta { background: var(--surface); border: 1px solid var(--line); padding: 22px 14px; text-align: center; font-family: 'JetBrains Mono'; font-size: 0.75rem; color: var(--ink-soft); border-radius: 10px; }
.d-degradado { height: 90px; border-radius: 6px; background: linear-gradient(135deg, #576F6F, #9DAEB3); }
.d-hover-sube, .d-hover-escala, .d-hover-gira { transition: transform 0.3s ease, box-shadow 0.3s ease; cursor: default; }
.d-hover-sube:hover { transform: translateY(-6px); box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12); }
.d-hover-escala:hover { transform: scale(1.06); }
.d-hover-gira:hover { transform: rotate(3deg); }
@media (prefers-reduced-motion: reduce) { .d-hover-sube, .d-hover-escala, .d-hover-gira { transition: none; } }
.d-hr { border: none; border-top: 1px dashed #9DAEB3; margin: 1rem 0; }
/* Ejemplos en vivo de Programación 2º · posicionamiento */
.d-tarjeta-pos { position: relative; max-width: 260px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.d-tarjeta-pos p { margin: 0; padding: 12px 14px; font-weight: 600; color: var(--ink); }
.d-imagen { height: 150px; background: linear-gradient(135deg, #576F6F, #9DAEB3); }
.d-etiqueta { position: absolute; top: 12px; right: 12px; background: #E0B978; color: #21231F; font-family: 'JetBrains Mono'; font-size: 0.72rem; padding: 3px 8px; border-radius: 3px; }
.d-scroll { height: 180px; overflow-y: auto; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.d-scroll p { margin: 0; padding: 10px 14px; color: var(--ink-soft); font-size: 0.9rem; }
.d-sticky { position: sticky; top: 0; background: var(--accent); color: #fff; padding: 10px 14px; font-family: 'JetBrains Mono'; font-size: 0.8rem; z-index: 1; }
.d-capas { position: relative; height: 160px; }
.d-capa { position: absolute; width: 150px; height: 90px; display: flex; align-items: flex-end; padding: 8px 10px; border-radius: 6px; font-family: 'JetBrains Mono'; font-size: 0.75rem; color: #fff; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
.d-capa:nth-child(1) { background: #576F6F; } .d-capa:nth-child(2) { background: #9DAEB3; color: #21231F; } .d-capa:nth-child(3) { background: #C0812E; }
.d-externo { color: var(--accent); font-weight: 600; }
.d-externo::after { content: " ↗"; }
.d-titulo-linea { margin: 0; font-size: 1.1rem; }
.d-titulo-linea::before { content: ""; display: block; width: 40px; height: 4px; background: var(--accent); margin-bottom: 12px; }
.d-cebra tbody tr:nth-child(even) td { background: var(--accent-soft); }
.d-overlay { position: relative; max-width: 300px; border-radius: 8px; overflow: hidden; }
.d-overlay .d-imagen { height: 180px; }
.d-overlay::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.75)); }
.d-overlay p { position: absolute; left: 16px; bottom: 12px; z-index: 1; margin: 0; color: #fff; font-weight: 600; }
/* Ejemplos en vivo de Programación 2º · responsive avanzado */
.d-fluido { margin: 0 0 6px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; font-size: clamp(1.6rem, 1rem + 4vw, 3.6rem); color: var(--ink); }
.d-objfit { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.d-objfit figure { margin: 0; }
.d-objfit img { display: block; width: 100%; aspect-ratio: 1; border: 1px dashed var(--ink-soft); background: var(--accent-soft); }
.d-objfit figcaption { margin-top: 6px; font-size: 0.78rem; color: var(--ink-soft); }
.d-cq { container-type: inline-size; }
.d-cq-tarjeta { display: grid; gap: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.d-cq-tarjeta .d-imagen { height: 110px; border-radius: 4px; }
.d-cq-tarjeta p { margin: 4px 0 0; font-size: 0.85rem; color: var(--ink-soft); }
@container (min-width: 400px) { .d-cq-tarjeta { grid-template-columns: 150px 1fr; align-items: center; } }
/* Imagen interactiva con hotspots */
.d-mapa { position: relative; margin: 0; max-width: 600px; }
.d-mapa img { display: block; width: 100%; height: auto; border-radius: 4px; }
.d-punto { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); width: 30px; height: 30px; border-radius: 50%; border: 3px solid #fff; background: #C0812E; color: #fff; font-family: 'JetBrains Mono'; font-size: 0.75rem; font-weight: 600; cursor: pointer; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3); padding: 0; transition: transform 0.2s ease; }
.d-punto:hover, .d-punto:focus-visible { transform: translate(-50%, -50%) scale(1.15); z-index: 2; outline: none; }
.d-punto:focus-visible { box-shadow: 0 0 0 3px #576F6F; }
.d-ficha { position: absolute; bottom: calc(100% + 12px); left: 50%; transform: translateX(-50%); width: 200px; padding: 10px 12px; border-radius: 6px; background: #21231F; color: #F7F6F2; font-family: 'Space Grotesk', system-ui, sans-serif; font-size: 0.8rem; font-weight: 400; line-height: 1.4; text-align: left; opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s; pointer-events: none; }
.d-ficha strong { color: #E0B978; }
.d-punto:hover .d-ficha, .d-punto:focus-visible .d-ficha, .d-punto:focus .d-ficha { opacity: 1; visibility: visible; }
/* Ejemplos en vivo de Programación 2º · efectos */
.d-modos { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.d-modo { border-radius: 8px; padding: 16px; font-size: 0.85rem; border: 1px solid; }
.d-modo p { margin: 6px 0 12px; }
.subtema-block .d-modo strong { color: inherit; }
.d-modo-claro { background: #F7F6F2; color: #21231F; border-color: #DEDBD2; }
.d-modo-claro p { color: #5B5D57; }
.d-modo-oscuro { background: #171815; color: #EDEBE4; border-color: #33352E; }
.d-modo-oscuro p { color: #A3A69B; }
.d-modo-boton { display: inline-block; padding: 6px 14px; border-radius: 4px; font-weight: 600; font-size: 0.8rem; }
.d-modo-claro .d-modo-boton { background: #576F6F; color: #fff; }
.d-modo-oscuro .d-modo-boton { background: #A5BEBE; color: #171815; }
.d-anim-fila { display: flex; align-items: center; gap: 18px; }
.d-anim-fila .demo-titulo { margin: 0; }
.d-latido { width: 26px; height: 26px; border-radius: 50%; background: #C0812E; border: 3px solid #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3); flex-shrink: 0; }
@keyframes d-latido { 0% { transform: scale(1); } 50% { transform: scale(1.25); } 100% { transform: scale(1); } }
@media (prefers-reduced-motion: no-preference) { .d-latido { animation: d-latido 1.5s ease-in-out infinite; } }
.d-filtros { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; }
.d-filtros-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 600px) { .d-filtros-4 { grid-template-columns: repeat(2, 1fr); } }
.d-filtros figure { margin: 0; }
.d-filtros img { display: block; width: 100%; height: auto; border-radius: 4px; }
.d-filtros figcaption { margin-top: 6px; font-size: 0.72rem; }
.d-blend { aspect-ratio: 3 / 2; border-radius: 4px; background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%27300%27%20height%3D%27200%27%20viewBox%3D%270%200%20300%20200%27%3E%3Crect%20width%3D%27300%27%20height%3D%27200%27%20fill%3D%27%239DAEB3%27/%3E%3Crect%20y%3D%27130%27%20width%3D%27300%27%20height%3D%2770%27%20fill%3D%27%23576F6F%27/%3E%3Ccircle%20cx%3D%27210%27%20cy%3D%2770%27%20r%3D%2738%27%20fill%3D%27%23E0B978%27/%3E%3Cpolygon%20points%3D%2740%2C130%20110%2C50%20180%2C130%27%20fill%3D%27%23C0812E%27/%3E%3C/svg%3E"); background-size: cover; background-color: #C0812E; }
.d-blend-texto { display: flex; align-items: center; justify-content: center; background-color: transparent; }
.d-blend-texto span { font-size: 2.6rem; font-weight: 700; color: #fff; mix-blend-mode: difference; }
/* Diagrama de flujo (SVG en línea; se adapta a modo claro y oscuro con las variables) */
.diagrama-flujo { display: block; width: 100%; max-width: 580px; height: auto; margin: 0 auto; font-family: 'Space Grotesk', system-ui, sans-serif; }
.diagrama-flujo text { font-size: 15px; text-anchor: middle; fill: var(--ink); }
.diagrama-flujo .df-etiqueta { font-family: 'JetBrains Mono', monospace; font-size: 13px; fill: var(--accent); font-weight: 600; }
.df-forma { stroke: var(--ink); stroke-width: 1.5; }
.df-terminal { fill: var(--accent-soft); }
.df-proceso { fill: var(--surface); }
.df-decision { fill: #F3E3A6; }
.df-es { fill: var(--bg); }
.df-linea { stroke: var(--ink-soft); stroke-width: 1.5; }
.df-punta { fill: var(--ink-soft); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .df-decision { fill: #4A4326; } }
:root[data-theme="dark"] .df-decision { fill: #4A4326; }
/* Bloques plegables «Para saber más» (contenido opcional) */
.ampliacion { border: 1px dashed var(--ink-soft); border-radius: 6px; margin: 0 0 12px; background: var(--surface); }
.ampliacion summary { list-style: none; cursor: pointer; padding: 12px 44px 12px 16px; font-weight: 600; color: var(--ink); display: block; position: relative; }
.ampliacion summary::-webkit-details-marker { display: none; }
.ampliacion summary::after { content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-family: 'JetBrains Mono'; color: var(--ink-soft); font-weight: 400; }
.ampliacion[open] summary::after { content: "×"; }
.ampliacion summary:hover { color: var(--accent); }
.ampliacion summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.ampliacion-cuerpo { padding: 4px 16px 6px; border-top: 1px dashed var(--line); }
.ampliacion-cuerpo > :first-child { margin-top: 12px; }
/* Ejemplos de JavaScript ejecutables */
.ejecutable { margin: 0 0 18px; }
.ejecutable textarea { display: block; width: 100%; resize: vertical; border: none; outline: none; background: var(--ink); color: var(--bg); border-radius: 6px 6px 0 0; padding: 16px 18px; font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.6; white-space: pre; overflow-x: auto; overflow-y: hidden; tab-size: 2; font-variant-ligatures: none; }
.ejecutable textarea:focus-visible { box-shadow: inset 0 0 0 2px var(--accent); }
.ejec-barra { display: flex; gap: 8px; padding: 8px 10px; background: color-mix(in srgb, var(--ink) 88%, var(--bg)); }
.ejec-barra button { font: inherit; font-size: 0.8rem; font-weight: 600; padding: 6px 12px; border-radius: 3px; border: none; cursor: pointer; }
.ejec-run { background: #9DAEB3; color: #21231F; }
.ejec-run:hover { background: #B6C3C7; }
.ejec-reset { background: transparent; color: var(--bg); opacity: 0.75; }
.ejec-reset:hover { opacity: 1; }
.ejec-salida { margin: 0; min-height: 2.6em; padding: 12px 18px; border: 1px dashed var(--ink-soft); border-top: none; border-radius: 0 0 6px 6px; background: var(--surface); color: var(--ink); font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; white-space: pre-wrap; }
.ejec-salida:empty::before { content: "Pulsa «Ejecutar» para ver el resultado"; color: var(--ink-soft); font-family: 'Space Grotesk', system-ui, sans-serif; font-size: 0.8rem; }
.ejec-salida.ejec-error { color: #B3261E; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .ejec-salida.ejec-error { color: #F2B8B5; } }
:root[data-theme="dark"] .ejec-salida.ejec-error { color: #F2B8B5; }
@media print { .ejec-barra, .ejec-salida { display: none; } .ejecutable textarea { background: none; color: #000; border: 1px solid #000; } }
/* Ejemplos web ejecutables (HTML + CSS + JS en una mini página) */
.ejecutable-web { margin: 0 0 18px; border-radius: 6px; overflow: hidden; }
.ejecutable-web textarea { display: block; width: 100%; resize: vertical; border: none; outline: none; background: var(--ink); color: var(--bg); padding: 4px 18px 14px; font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.6; white-space: pre; overflow-x: auto; overflow-y: hidden; tab-size: 2; font-variant-ligatures: none; }
.ejecutable-web textarea:focus-visible { box-shadow: inset 0 0 0 2px var(--accent); }
.ejec-lenguaje { display: block; background: var(--ink); color: #9DAEB3; font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; letter-spacing: 0.08em; padding: 10px 18px 2px; border-top: 1px solid color-mix(in srgb, var(--bg) 15%, transparent); }
.ejecutable-web .ejec-lenguaje:first-child { border-top: none; }
.ejec-vista { display: block; width: 100%; border: 1px dashed var(--ink-soft); border-top: none; background: #F7F6F2; }
.ejecutable-web .ejec-salida { border-radius: 0 0 6px 6px; }
.ejecutable-web .ejec-salida:empty { display: none; }
.ejecutable-web .ejec-vista:has(+ .ejec-salida:empty) { border-radius: 0 0 6px 6px; }
@media print { .ejecutable-web .ejec-vista { display: none; } .ejecutable-web textarea { background: none; color: #000; border: 1px solid #000; } .ejec-lenguaje { background: none; color: #000; } }
/* Listas de comprobación con casillas */
.subtema-block .checklist { list-style: none; padding-left: 0; }
.checklist li { margin: 0; border-bottom: 1px dashed var(--line); }
.checklist label { display: flex; gap: 10px; align-items: flex-start; padding: 8px 4px; cursor: pointer; }
.checklist input { margin-top: 5px; accent-color: var(--accent); width: 16px; height: 16px; flex-shrink: 0; }
.check-enlaces { display: inline-block; margin-left: 4px; font-size: 0.78rem; }
.check-enlaces a { color: var(--accent); }
.checklist input:checked + span { color: var(--ink-soft); text-decoration: line-through; text-decoration-color: var(--ink-soft); }
/* Esquema de HTML y CSS: fichas de consulta rápida */
.fichas { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.subtema-block > .fichas { margin-bottom: 18px; }
.ficha { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 16px; min-width: 0; }
.ficha h4 { margin: 0 0 10px !important; font-size: 0.95rem; }
.ficha pre.code { font-size: 0.74rem; margin: 0 0 10px; padding: 12px 14px; }
.subtema-block .ficha p { font-size: 0.84rem; margin: 0 0 10px; max-width: none; }
.ficha-enlace { margin-top: auto; font-size: 0.78rem; color: var(--accent); text-decoration: none; }
.ficha-enlace:hover { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 400px) { .fichas { grid-template-columns: 1fr; } }
@media print { .fichas { grid-template-columns: 1fr 1fr; gap: 10px; } .ficha { break-inside: avoid; padding: 10px; } .ficha-enlace { display: none; } }
/* Leyes del diseño: fichas con ejemplo visual */
.leyes { display: grid; gap: 18px; margin-bottom: 28px; }
.ley { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
.ley-demo { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-height: 140px; background: var(--bg); border-radius: 6px; padding: 14px; color: var(--ink); }
.ley-texto h4 { margin: 0 0 8px !important; font-size: 1.05rem; }
.subtema-block .ley-texto p { margin: 0 0 8px; max-width: none; font-size: 0.92rem; }
.subtema-block .ley-texto p.ley-fijate { font-size: 0.82rem; color: var(--accent); margin: 0; }
.ley-fijate strong { color: var(--accent) !important; }
@media (max-width: 640px) { .ley { grid-template-columns: 1fr; } }
/* Demos Gestalt */
.gp { display: block; width: 12px; height: 12px; border-radius: 50%; background: currentColor; }
.gp-acento { background: #C0812E; }
.g-proximidad { --sep: 28px; display: grid; grid-template-columns: repeat(6, 12px); gap: 8px; column-gap: 8px; }
.g-proximidad .gp:nth-child(6n+3), .g-proximidad .gp:nth-child(6n+5) { margin-left: var(--sep); }
.g-control { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 0.72rem; color: var(--ink-soft); }
.g-control input { width: 150px; accent-color: var(--accent); }
.g-rejilla { display: grid; grid-template-columns: repeat(4, 12px); gap: 12px; }
.g-region { display: flex; gap: 14px; align-items: center; }
.g-caja, .g-sin-caja { display: grid; grid-template-columns: repeat(2, 12px); gap: 10px; padding: 12px; border-radius: 6px; }
.g-caja { background: var(--accent-soft); border: 1px solid var(--accent); }
.g-svg { width: 100%; max-width: 160px; height: auto; color: var(--ink); }
.g-acento-fill { fill: #C0812E; }
.g-figura { position: relative; width: 170px; height: 110px; border-radius: 6px; overflow: hidden; }
.g-fondo-falso { position: absolute; inset: 0; display: grid; gap: 6px; padding: 10px; background: var(--surface); }
.g-fondo-falso span { display: block; height: 8px; border-radius: 2px; background: var(--line); }
.g-fondo-falso::after { content: ""; position: absolute; inset: 0; background: rgba(0, 0, 0, 0.45); }
.g-modal { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: var(--surface); color: var(--ink); font-size: 0.78rem; font-weight: 600; padding: 14px 18px; border-radius: 6px; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3); }
/* Demos leyes de UX */
.u-fitts { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 100%; }
.u-fitts-zona { position: relative; width: 190px; height: 96px; border: 1px dashed var(--line); border-radius: 6px; }
.u-diana { position: absolute; border: none; border-radius: 4px; cursor: pointer; font: inherit; font-weight: 600; color: #fff; }
.u-diana-peq { width: 14px; height: 14px; padding: 0; right: 10px; top: 10px; background: #C0812E; font-size: 0; }
.u-diana-gra { width: 96px; height: 40px; left: 10px; bottom: 10px; background: var(--accent); font-size: 0.85rem; }
.u-diana.hecho { outline: 3px solid #9DAEB3; outline-offset: 2px; }
.subtema-block .u-fitts-salida { margin: 0; max-width: 200px; text-align: center; font-size: 0.75rem; line-height: 1.35; color: var(--ink); }
.u-fitts-repetir { font: inherit; font-size: 0.72rem; padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-soft); cursor: pointer; }
.u-hick { display: flex; gap: 14px; align-items: flex-start; font-size: 0.66rem; }
.u-menu { display: grid; gap: 3px; }
.u-menu span { padding: 2px 6px; border-radius: 2px; background: var(--surface); border: 1px solid var(--line); white-space: nowrap; }
.u-menu-largo { grid-template-columns: 1fr 1fr; }
.u-jakob { width: 180px; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: var(--surface); }
.u-barra { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px; border-bottom: 1px solid var(--line); font-size: 0.7rem; }
.u-logo { font-weight: 700; }
.u-links { display: flex; gap: 4px; } .u-links span { width: 16px; height: 5px; border-radius: 2px; background: var(--line); }
.u-cuerpo { display: grid; gap: 6px; padding: 10px 8px; } .u-cuerpo span { height: 8px; border-radius: 2px; background: var(--line); } .u-cuerpo span:last-child { width: 60%; }
.u-restorff { display: grid; gap: 5px; width: 140px; font-size: 0.75rem; }
.u-restorff span { padding: 5px 10px; border-radius: 4px; background: var(--surface); border: 1px solid var(--line); text-align: center; }
.u-restorff .u-destaca { background: #C0812E; border-color: #C0812E; color: #fff; font-weight: 700; }
.u-miller { display: grid; gap: 10px; text-align: center; }
.u-num { font-family: 'JetBrains Mono', monospace; font-size: 1.05rem; letter-spacing: 0.02em; color: var(--ink-soft); }
.u-num-ok { color: var(--ink); font-weight: 500; }
.u-estetica { display: flex; gap: 12px; }
.u-feo { padding: 6px 10px; background: #ccc; border: 2px outset #eee; font-family: 'Times New Roman', serif; font-size: 0.8rem; color: #000; }
.u-bonito { padding: 7px 16px; background: var(--accent); color: #fff; border-radius: 999px; font-size: 0.8rem; font-weight: 600; box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15); }
/* Bloque «Para profundizar» con enlaces externos */
.profundizar { margin: 22px 0 0; padding: 14px 18px; border: 1px dashed var(--line); border-radius: 6px; font-size: 0.88rem; }
.subtema-block .profundizar p { margin: 0 0 6px; max-width: none; }
.subtema-block .profundizar ul { margin: 0; padding-left: 18px; display: flex; flex-wrap: wrap; gap: 4px 22px; }
.profundizar li { margin: 0; }
/* Composición: ejemplos */
.c-comparar { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px) { .c-comparar { grid-template-columns: 1fr; } }
.c-tarjeta { display: flex; flex-direction: column; gap: 6px; padding: 16px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); font-size: 0.88rem; color: var(--ink); }
.c-plana span { font-size: 0.88rem; }
.c-jerarquia { gap: 4px; }
.c-meta { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); }
.c-titulo { font-size: 1.3rem; font-weight: 700; line-height: 1.15; margin-bottom: 4px; }
.c-texto { color: var(--ink-soft); font-size: 0.85rem; margin-bottom: 10px; }
.c-boton { align-self: flex-start; background: var(--accent); color: #fff; font-weight: 600; padding: 7px 14px; border-radius: 4px; font-size: 0.82rem; }
.c-reticula { position: relative; }
.c-columnas, .c-bloques { display: grid; grid-template-columns: repeat(12, 1fr); gap: 8px; }
.c-columnas { position: absolute; inset: 0; }
.c-columnas span { display: flex; justify-content: center; padding-top: 3px; background: color-mix(in srgb, #C0812E 14%, transparent); border-radius: 2px; font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: #C0812E; }
.c-bloques { position: relative; padding-top: 22px; row-gap: 8px; }
.c-bloque { padding: 10px 0; text-align: center; border-radius: 3px; background: var(--accent); color: #fff; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; }
.c-patrones { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px) { .c-patrones { grid-template-columns: 1fr; } }
.c-patrones figure { margin: 0; }
.c-patron { display: block; width: 100%; height: auto; }
.c-patrones figcaption { margin-top: 6px; font-size: 0.82rem; color: var(--ink-soft); text-align: center; }
.c-pag { fill: var(--bg); stroke: var(--line); }
.c-lineas rect, .c-bloq { fill: var(--line); }
.c-bloq-suave { fill: var(--accent-soft); stroke: var(--line); }
.c-bloq-acento { fill: var(--accent); }
.c-ruta { fill: none; stroke: #C0812E; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; opacity: 0.85; }
/* Interfaces: miniaturas de patrones */
.i-patrones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 700px) { .i-patrones { grid-template-columns: repeat(2, 1fr); } }
.i-patron { margin: 0; }
.i-patron figcaption { margin-top: 6px; font-size: 0.75rem; color: var(--ink-soft); text-align: center; }
.i-mock { position: relative; display: flex; flex-direction: column; gap: 6px; height: 104px; padding: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); overflow: hidden; font-size: 0.55rem; color: var(--ink); }
.i-l { display: block; height: 6px; border-radius: 2px; background: var(--line); }
.i-l:last-child { width: 70%; }
.i-nav { display: flex; align-items: center; gap: 5px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.i-nav b { width: 18px; height: 8px; border-radius: 2px; background: var(--ink); margin-right: auto; }
.i-nav span { width: 14px; height: 4px; border-radius: 2px; background: var(--ink-soft); }
.i-hamb { display: grid; gap: 2px; } .i-hamb span { width: 12px; height: 2px; background: var(--ink); }
.i-migas { color: var(--ink-soft); white-space: nowrap; } .i-migas strong { color: var(--ink); }
.i-tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); } .i-tabs span { padding: 3px 5px; color: var(--ink-soft); } .i-tabs .on { color: var(--ink); border-bottom: 2px solid var(--accent); font-weight: 600; }
.i-panel { display: flex; flex-direction: column; gap: 6px; }
.i-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; } .i-cards div { display: grid; gap: 4px; padding: 3px; border-radius: 3px; background: var(--surface); border: 1px solid var(--line); } .i-cards i { display: block; height: 26px; border-radius: 2px; background: var(--accent-soft); }
.i-acc { display: flex; flex-direction: column; gap: 4px; } .i-acc span { display: flex; justify-content: space-between; padding: 2px 4px; border-bottom: 1px solid var(--line); } .i-acc em { font-style: normal; color: var(--accent); }
.i-modal-fondo { position: absolute; inset: 0; display: flex; flex-direction: column; gap: 6px; padding: 8px; }
.i-modal-fondo::after { content: ""; position: absolute; inset: 0; background: rgba(0, 0, 0, 0.4); }
.i-modal { position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 70%; display: grid; gap: 6px; padding: 8px; border-radius: 4px; background: var(--surface); }
.i-modal b { justify-self: end; padding: 2px 6px; border-radius: 2px; background: var(--accent); color: #fff; font-weight: 600; }
.i-toast { position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%); padding: 4px 8px; border-radius: 4px; background: #21231F; color: #F7F6F2; white-space: nowrap; }
/* Interfaces: estados */
.i-estados { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 14px; text-align: center; }
.i-estados figure { margin: 0; } .i-estados figcaption { margin-top: 8px; font-size: 0.75rem; color: var(--ink-soft); }
.i-est { display: inline-block; padding: 8px 16px; border-radius: 4px; background: #576F6F; color: #fff; font-weight: 600; font-size: 0.85rem; }
.i-hover { background: #475B5B; }
.i-foco { outline: 3px solid #C0812E; outline-offset: 3px; }
.i-activo { transform: scale(0.95); background: #3B4D4D; }
.i-desact { background: #C9CBC4; color: #6B6D67; }
.i-cargando { opacity: 0.8; }
/* Interfaces: formularios y color */
.i-form { display: flex; flex-direction: column; gap: 6px; padding: 14px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); font-size: 0.8rem; color: var(--ink); }
.i-form-mal { flex-direction: row; flex-wrap: wrap; }
.i-form-mal .i-campo { flex: 1 1 40%; color: #9A9C95; padding: 6px 8px; }
.i-form-bien label { font-weight: 600; font-size: 0.78rem; margin-top: 4px; } .i-form-bien small { font-weight: 400; color: var(--ink-soft); }
.i-campo { display: block; min-height: 28px; border: 1px solid #B9BBB4; border-radius: 4px; background: var(--surface); }
.i-campo-alto { min-height: 52px; }
.i-campo-error, .i-rojo { border: 2px solid #B3261E; }
.i-verde { border: 2px solid #2E7D32; }
.i-error { color: #B3261E; font-size: 0.75rem; font-weight: 600; }
.i-ok { color: #2E7D32; font-size: 0.75rem; font-weight: 600; }
.i-boton-mal { padding: 4px 10px; border: 1px solid #B9BBB4; border-radius: 2px; font-size: 0.7rem; color: #6B6D67; }
.i-boton-bien { align-self: flex-start; margin-top: 6px; padding: 8px 16px; border-radius: 4px; background: var(--accent); color: #fff; font-weight: 600; }
.i-color-solo { display: flex; flex-direction: column; gap: 6px; padding: 14px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); }
/* Interfaces: comprobador de contraste */
.i-contraste { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; align-items: center; }
@media (max-width: 600px) { .i-contraste { grid-template-columns: 1fr; } }
.i-contraste-muestra { display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 8px; border: 1px solid var(--line); font-size: 1rem; }
.i-cm-grande { font-size: 1.6rem; font-weight: 700; line-height: 1.1; }
.i-contraste-controles { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; font-size: 0.85rem; }
.i-contraste-controles label { display: flex; align-items: center; gap: 6px; }
.i-contraste-controles input { width: 40px; height: 30px; padding: 0; border: 1px solid var(--line); border-radius: 4px; background: none; cursor: pointer; }
.subtema-block .i-ratio { width: 100%; margin: 0; font-family: 'JetBrains Mono', monospace; font-size: 1.6rem; font-weight: 500; color: var(--ink); }
.subtema-block .i-veredicto { width: 100%; margin: 0; font-size: 0.85rem; color: var(--ink); }
/* De Figma al código */
.f-comparar { display: flex; align-items: center; justify-content: center; gap: 22px; flex-wrap: wrap; }
.f-panel { width: 240px; padding: 12px; border-radius: 8px; background: #2C2C2C; color: #E6E6E6; font-family: system-ui, sans-serif; font-size: 0.75rem; }
.subtema-block .f-panel-tit { margin: 0 0 8px; font-weight: 600; color: #fff; font-size: 0.8rem; }
.f-fila { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; border-top: 1px solid #3D3D3D; }
.f-fila b { font-weight: 500; color: #fff; }
.f-flecha { font-size: 1.6rem; color: var(--ink-soft); }
.f-boton { display: inline-flex; flex-direction: row; gap: 8px; padding: 12px 20px; align-items: center; border-radius: 6px; background: var(--accent); color: #fff; font-weight: 600; outline: 1px dashed #C0812E; outline-offset: 3px; }
.f-icono { font-size: 0.9em; }
/* UX: el proceso */
.ux-diamante { display: block; width: 100%; height: auto; font-family: 'Space Grotesk', system-ui, sans-serif; }
.ux-diamante text { font-size: 15px; text-anchor: middle; fill: var(--ink); font-weight: 600; }
.ux-diamante .ux-sub { font-size: 12px; font-weight: 400; fill: var(--ink-soft); }
.ux-diamante .ux-hito { font-size: 11px; font-weight: 400; fill: #C0812E; }
.ux-d1 { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.5; }
.ux-d2 { fill: color-mix(in srgb, #C0812E 14%, transparent); stroke: #C0812E; stroke-width: 1.5; }
.ux-fases { list-style: none; padding: 0 !important; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; counter-reset: fase; max-width: none !important; }
.ux-fases li { counter-increment: fase; display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; font-size: 0.82rem; }
.ux-fases li::before { content: "0" counter(fase); font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--accent); }
@media (max-width: 800px) { .ux-fases { grid-template-columns: 1fr; } }
.ux-persona { max-width: 420px; padding: 16px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); font-size: 0.85rem; }
.ux-persona-cab { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.ux-persona-cab div { display: flex; flex-direction: column; } .ux-persona-cab span:not(.ux-avatar) { color: var(--ink-soft); font-size: 0.8rem; }
.ux-avatar { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: #C0812E; color: #fff; font-weight: 700; flex-shrink: 0; }
.ux-persona dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; }
.ux-persona dt { font-weight: 600; } .ux-persona dd { margin: 0; color: var(--ink-soft); }
.ux-empatia { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; max-width: 520px; }
.ux-empatia div { display: flex; flex-direction: column; gap: 4px; padding: 12px; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); font-size: 0.82rem; }
.ux-empatia strong { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); }
.ux-fidelidad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 600px) { .ux-fidelidad { grid-template-columns: 1fr; } }
.ux-fidelidad figure { margin: 0; } .ux-fidelidad figcaption { margin-top: 6px; font-size: 0.8rem; color: var(--ink-soft); text-align: center; }
.ux-fid { display: flex; flex-direction: column; gap: 7px; height: 160px; padding: 12px; border-radius: 6px; overflow: hidden; }
.ux-baja { background: #FFFDF5; border: 1px solid #E3DCC5; }
.ux-garabato { height: 34px; border: 2px solid #8A8577; border-radius: 10px 4px 12px 6px; }
.ux-g2 { height: 18px; width: 70%; border-radius: 4px 12px 5px 10px; }
.ux-cruz { flex: 1; border: 2px solid #8A8577; border-radius: 4px; background: linear-gradient(to top right, transparent calc(50% - 1px), #8A8577, transparent calc(50% + 1px)), linear-gradient(to top left, transparent calc(50% - 1px), #8A8577, transparent calc(50% + 1px)); }
.ux-media { background: #FFFFFF; border: 1px solid #D5D5D5; }
.ux-media span { background: #DADADA; border-radius: 2px; }
.ux-bar { height: 10px; } .ux-img { height: 48px; } .ux-lin { height: 6px; } .ux-corta { width: 60%; } .ux-btn { height: 16px; width: 45%; }
.ux-alta { background: #F7F6F2; border: 1px solid var(--line); }
.ux-alta .ux-bar { background: #21231F; border-radius: 2px; }
.ux-alta .ux-img { border-radius: 3px; background: linear-gradient(135deg, #576F6F, #9DAEB3); }
.ux-alta .ux-tit { font-weight: 700; font-size: 0.85rem; color: #21231F; }
.ux-alta .ux-lin { background: #CFCDC5; border-radius: 2px; }
.ux-alta .ux-btn { display: grid; place-items: center; height: 22px; border-radius: 4px; background: #C0812E; color: #fff; font-size: 0.68rem; font-weight: 600; }
.ux-heuristicas { columns: 2; column-gap: 28px; max-width: none !important; }
.ux-heuristicas li { break-inside: avoid; }
@media (max-width: 700px) { .ux-heuristicas { columns: 1; } }
/* Glosario */
.g-herramientas { position: sticky; top: var(--alto-cabecera, 64px); z-index: 2; display: flex; flex-direction: column; gap: 10px; padding: 14px 0 12px; margin-bottom: 8px; background: var(--bg); border-bottom: 1px solid var(--line); }
.g-buscar { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; font-weight: 600; }
.g-buscar input { flex: 1; max-width: 420px; font: inherit; font-weight: 400; padding: 9px 12px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--ink); }
.g-buscar input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.g-filtros { display: flex; flex-wrap: wrap; gap: 6px; }
.g-filtro { font: inherit; font-size: 0.78rem; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft); cursor: pointer; }
.g-filtro:hover { color: var(--ink); }
.g-filtro.activo { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.g-letras { display: flex; flex-wrap: wrap; gap: 2px 10px; font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; }
.g-letras a { color: var(--accent); text-decoration: none; }
.g-letras a:hover { text-decoration: underline; }
.subtema-block .g-contador { margin: 0; font-size: 0.78rem; color: var(--ink-soft); }
.g-letra { scroll-margin-top: calc(var(--alto-cabecera, 64px) + 190px); }
.g-letra h4 { margin: 22px 0 6px !important; font-family: 'JetBrains Mono', monospace; font-size: 1.1rem; color: var(--accent); border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.g-letra dl { margin: 0; }
.g-termino { padding: 10px 0; border-bottom: 1px dashed var(--line); }
.g-termino dt { font-weight: 600; color: var(--ink); }
.g-cat { display: inline-block; margin-left: 6px; padding: 1px 7px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-family: 'JetBrains Mono', monospace; font-size: 0.66rem; font-weight: 500; vertical-align: 2px; }
.g-termino dd { margin: 4px 0 0; color: var(--ink-soft); font-size: 0.92rem; max-width: 70ch; }
.g-ver { font-size: 0.8rem; color: var(--accent); white-space: nowrap; }
.subtema-block .g-vacio { padding: 18px 0; color: var(--ink-soft); }
@media print { .g-herramientas { display: none; } .g-termino { break-inside: avoid; } }
/* Herramientas e inspiración: tarjetas de enlaces */
.enlaces { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin-bottom: 20px; }
.enlace { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); text-decoration: none !important; transition: background-color 0.4s ease, border-color 0.4s ease; }
.enlace:hover, .enlace:focus-visible { background: color-mix(in srgb, var(--surface) 50%, var(--bg)); border-color: color-mix(in srgb, var(--line) 75%, var(--ink-soft)); }
.enlace-cab { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.enlace-cab strong { font-size: 0.95rem; color: var(--ink); }
.enlace-idioma { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; padding: 1px 6px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.enlace-desc { font-size: 0.85rem; color: var(--ink-soft); line-height: 1.45; }
.enlace-url { margin-top: auto; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--accent); overflow-wrap: anywhere; }
@media print { .enlace { break-inside: avoid; } }
.ley-enlace { display: inline-block; margin-top: 8px; font-size: 0.8rem; color: var(--accent); }
/* Demos de las leyes añadidas */
.u-carga { display: flex; gap: 14px; align-items: center; }
.u-carga-mal { display: grid; grid-template-columns: repeat(3, 18px); gap: 4px; }
.u-carga-mal span { height: 14px; border-radius: 2px; background: #C0812E; opacity: 0.75; }
.u-carga-mal span:nth-child(3n+2) { background: var(--accent); } .u-carga-mal span:nth-child(4n) { background: var(--ink-soft); }
.u-carga-bien { display: grid; gap: 6px; width: 70px; } .u-carga-bien span { height: 8px; border-radius: 2px; background: var(--line); } .u-carga-bien b { height: 16px; border-radius: 3px; background: var(--accent); }
.u-serie { display: flex; gap: 6px; } .u-serie span { width: 16px; height: 30px; border-radius: 3px; background: var(--line); } .u-serie .u-serie-on { background: var(--accent); }
.subtema-block .u-pie { margin: 0; font-size: 0.7rem; color: var(--ink-soft); text-align: center; max-width: none; }
.u-tesler { display: flex; align-items: center; gap: 8px; font-size: 0.6rem; }
.u-campos { display: grid; gap: 3px; } .u-campos span { padding: 2px 6px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); white-space: nowrap; }
.u-campos .u-auto { padding: 6px 8px; border-color: var(--accent); color: var(--accent); font-weight: 600; }
.u-flecha { color: var(--ink-soft); font-size: 1rem; }
.u-doherty { width: 190px; }
.u-escala { position: relative; height: 16px; font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; color: var(--ink-soft); }
.u-escala span { position: absolute; transform: translateX(-50%); white-space: nowrap; } .u-escala .u-limite { color: #C0812E; font-weight: 600; }
.u-barra-t { height: 8px; border-radius: 4px; background: linear-gradient(to right, var(--accent) 0 30%, #C0812E 30% 62%, var(--line) 62%); }
/* Medios I · ejemplo del sistema binario */
.binario { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; }
.bin-bits { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.bin-bit { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 44px; padding: 10px 0 6px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink-soft); font: inherit; cursor: pointer; transition: background 0.15s ease, color 0.15s ease; }
.bin-bit[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.bin-bit:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.bin-num { font-family: 'JetBrains Mono', monospace; font-size: 1.3rem; font-weight: 600; line-height: 1; }
.bin-peso { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; opacity: 0.8; }
.bin-resultado { display: grid; gap: 6px; }
.subtema-block .bin-linea { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 0.9rem; color: var(--ink); }
.bin-etq { width: 86px; font-size: 0.75rem; color: var(--ink-soft); }
.bin-linea strong { font-family: 'JetBrains Mono', monospace; font-size: 1.4rem; }
.bin-gris { display: inline-block; width: 44px; height: 44px; border-radius: 6px; border: 1px solid var(--line); background: #000; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
@media (max-width: 480px) { .bin-bit { width: 34px; } .bin-num { font-size: 1.05rem; } }
/* Desglose de un color hexadecimal */
.hex-desglose { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-family: 'JetBrains Mono', monospace; }
.hex-almohadilla, .hex-igual { font-size: 1.6rem; color: var(--ink-soft); }
.hex-par { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 12px; border-radius: 6px; border: 2px solid; min-width: 64px; }
.hex-par b { font-size: 1.6rem; font-weight: 600; color: var(--ink); }
.hex-par small { font-family: 'Space Grotesk', system-ui, sans-serif; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.hex-par em { font-style: normal; font-size: 0.75rem; color: var(--ink-soft); }
.hex-r { border-color: #D9534F; } .hex-r small { color: #C0392B; }
.hex-g { border-color: #4CAF50; } .hex-g small { color: #2E7D32; }
.hex-b { border-color: #4A7FD0; } .hex-b small { color: #2F5FA8; }
.hex-rgb { font-size: 0.95rem; }
.hex-muestra { width: 46px; height: 46px; border-radius: 6px; border: 1px solid var(--line); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
/* Medios I · Tema 2: ejemplos */
.prof-barra { display: flex; height: 34px; border-radius: 4px; overflow: hidden; border: 1px solid var(--line); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.prof-barra span { flex: 1; }
.prof-continua { background: linear-gradient(to right, #000, #fff); }
.vec-demo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.vec-demo figure { margin: 0; }
.vec-demo figcaption { margin-top: 6px; text-align: center; font-size: 0.8rem; color: var(--ink-soft); }
.vec-marco { display: flex; align-items: center; justify-content: center; height: 220px; overflow: hidden; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); }
#vec-bitmap { image-rendering: pixelated; image-rendering: crisp-edges; }
#vec-svg { display: block; }
.vec-control { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 0.85rem; }
.vec-control input { flex: 1; max-width: 260px; accent-color: var(--accent); }
.vec-control output { font-family: 'JetBrains Mono', monospace; min-width: 30px; }
.sintesis { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .sintesis, .vec-demo { grid-template-columns: 1fr; } }
.sintesis figure { margin: 0; } .sintesis figcaption { margin-top: 8px; text-align: center; font-size: 0.8rem; color: var(--ink-soft); line-height: 1.4; }
.sint { position: relative; height: 200px; border-radius: 6px; isolation: isolate; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.sint span { position: absolute; width: 96px; height: 96px; border-radius: 50%; }
.sint-rgb { background: #000; } .sint-rgb span { mix-blend-mode: screen; }
.sint-cmy { background: #fff; border: 1px solid var(--line); } .sint-cmy span { mix-blend-mode: multiply; }
.s-r, .s-c { left: calc(50% - 78px); top: 22px; } .s-g, .s-m { left: calc(50% - 18px); top: 22px; } .s-b, .s-y { left: calc(50% - 48px); top: 78px; }
.s-r { background: #FF0000; } .s-g { background: #00FF00; } .s-b { background: #0000FF; }
.s-c { background: #00FFFF; } .s-m { background: #FF00FF; } .s-y { background: #FFFF00; }
/* Medios I · Tema 3: espectro y selector HSL */
.espectro { padding: 4px 0 2px; }
.esp-barra { height: 40px; border-radius: 4px; background: linear-gradient(to left, #7a00c4 0%, #3d00ff 12%, #0050ff 25%, #00c8ff 38%, #00e050 50%, #b4f000 60%, #ffe800 68%, #ff9a00 78%, #ff2800 90%, #b40000 100%); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.esp-escala { position: relative; height: 18px; margin-top: 4px; font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--ink-soft); }
.esp-escala span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.esp-escala span:first-child { transform: none; } .esp-escala span:last-child { transform: translateX(-100%); }
.esp-extremos { display: flex; justify-content: space-between; margin-top: 4px; font-size: 0.72rem; color: var(--ink-soft); }
/* Espectro electromagnético completo */
.em { --em-vis: linear-gradient(to left, #7a00c4, #0050ff, #00c8ff, #00e050, #ffe800, #ff9a00, #ff2800); }
.em-ejes { display: flex; justify-content: space-between; gap: 12px; font-size: 0.72rem; color: var(--ink-soft); }
.em-onda { display: block; width: 100%; height: 36px; margin: 4px 0 6px; }
.em-onda path { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.em-fila { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; text-align: center; }
.em-fila span { min-width: 0; overflow-wrap: anywhere; }
.em-nombres { font-size: 0.74rem; font-weight: 600; color: var(--ink); align-items: end; line-height: 1.2; margin-bottom: 4px; }
.em-barra span { height: 26px; background: var(--line); }
.em-barra span:first-child { border-radius: 4px 0 0 4px; } .em-barra span:last-child { border-radius: 0 4px 4px 0; }
.em-barra .em-vis { background: var(--em-vis); }
.em-barra span, .em-zoom { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.em-medida { margin-top: 4px; font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; color: var(--ink-soft); line-height: 1.3; }
.em-uso { margin-top: 2px; font-size: 0.68rem; color: var(--ink-soft); line-height: 1.3; }
.em-nombres .em-vis, .em-medida .em-vis { color: var(--accent); }
.em-zoom { height: 34px; margin-top: 8px; background: var(--accent-soft); clip-path: polygon(42.86% 0, 57.14% 0, 100% 100%, 0 100%); }
.subtema-block .em-ampliado { margin: 10px 0 8px; font-size: 0.78rem; font-weight: 600; color: var(--ink); }
@media (max-width: 560px) {
  .em-nombres span { writing-mode: vertical-rl; transform: rotate(180deg); justify-self: center; text-align: left; }
  .em-medida, .em-uso { display: none; }
}
.hsl-demo { display: grid; grid-template-columns: 160px 1fr; gap: 20px; align-items: center; }
@media (max-width: 560px) { .hsl-demo { grid-template-columns: 1fr; } }
.hsl-muestra { height: 160px; border-radius: 8px; border: 1px solid var(--line); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.hsl-controles { display: grid; gap: 12px; }
.hsl-controles label { display: grid; gap: 4px; font-size: 0.82rem; font-weight: 600; }
.hsl-controles label span { display: flex; justify-content: space-between; }
.hsl-controles output { font-family: 'JetBrains Mono', monospace; font-weight: 400; color: var(--ink-soft); }
.hsl-controles input[type="range"] { -webkit-appearance: none; appearance: none; height: 12px; border-radius: 6px; border: 1px solid var(--line); cursor: pointer; }
.hsl-controles input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 2px solid #21231F; }
.hsl-controles input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 2px solid #21231F; }
.hsl-rango-h { background: linear-gradient(to right, hsl(0,90%,50%), hsl(60,90%,50%), hsl(120,90%,50%), hsl(180,90%,50%), hsl(240,90%,50%), hsl(300,90%,50%), hsl(360,90%,50%)); }
#hsl-s { background: linear-gradient(to right, hsl(var(--h,180), 0%, 50%), hsl(var(--h,180), 100%, 50%)); }
#hsl-l { background: linear-gradient(to right, #000, hsl(var(--h,180), var(--s,12%), 50%), #fff); }
.subtema-block .hsl-codigos { margin: 0; display: flex; gap: 8px; flex-wrap: wrap; }
/* Escala de temperatura de color (kelvin) */
.k-barra { height: 40px; border-radius: 4px; background: linear-gradient(to right, #ff8a1f 0%, #ffb46b 12.5%, #ffd7a8 30%, #fff1df 43.75%, #ffffff 56.25%, #dfe8ff 75%, #b9cdff 100%); border: 1px solid var(--line); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.k-escala { position: relative; height: 18px; margin-top: 4px; font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--ink-soft); }
.k-escala span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.k-escala span:first-child { transform: none; } .k-escala span:last-child { transform: translateX(-100%); }
.k-ejemplos { display: flex; justify-content: space-between; margin-top: 4px; font-size: 0.72rem; color: var(--ink-soft); }
/* Medios I · Tema 4: Photoshop */
.ps-ui { display: grid; grid-template-columns: 64px 1fr 130px; grid-template-rows: auto auto 160px; grid-template-areas: "menu menu menu" "opc opc opc" "herr lienzo pan"; gap: 4px; font-size: 0.78rem; font-weight: 600; color: var(--ink); }
.ps-ui > div { background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 6px 8px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.ps-ui span { font-weight: 400; font-size: 0.7rem; color: var(--ink-soft); }
.ps-menu { grid-area: menu; } .ps-opciones { grid-area: opc; } .ps-herr { grid-area: herr; hyphens: manual; }
.ps-paneles { grid-area: pan; }
.ps-lienzo { grid-area: lienzo; align-items: center; justify-content: center; text-align: center; background: var(--accent-soft) !important; }
@media (max-width: 560px) { .ps-ui { grid-template-columns: 52px 1fr 92px; grid-template-rows: auto auto 140px; } .ps-menu span { display: none; } }
.capas-demo { display: grid; grid-template-columns: 220px 1fr; gap: 20px; align-items: start; }
@media (max-width: 560px) { .capas-demo { grid-template-columns: 1fr; } }
.capas-vista { position: relative; width: 220px; height: 220px; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: repeating-conic-gradient(#ccc 0 25%, #fff 0 50%) 0 0 / 16px 16px; }
.capas-vista, .capas-panel, .mascara-demo, .histo { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.cv { position: absolute; }
.cv-fondo { inset: 0; background: #E9DCC4; }
.cv-circulo { width: 120px; height: 120px; left: 26px; top: 24px; border-radius: 50%; background: #C0812E; }
.cv-franja { left: 0; right: 0; top: 104px; height: 46px; background: #576F6F; }
.cv-texto { left: 14px; bottom: 12px; font-size: 2rem; font-weight: 700; color: #21231F; letter-spacing: -0.02em; }
.cv.oculta { visibility: hidden; }
.subtema-block .capas-panel { list-style: none; margin: 0; padding: 0; max-width: 340px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); font-size: 0.85rem; color: var(--ink); }
.capas-panel li { display: grid; grid-template-columns: 32px 26px 1fr auto; align-items: center; gap: 8px; padding: 6px 8px; margin: 0; border-bottom: 1px solid var(--line); }
.capas-panel li:last-child { border-bottom: 0; }
.capas-panel button { font: inherit; background: none; border: 1px solid transparent; border-radius: 4px; color: var(--ink); cursor: pointer; padding: 2px 6px; line-height: 1; }
.capas-panel button:hover { border-color: var(--line); }
.capas-panel button:disabled { opacity: 0.3; cursor: default; border-color: transparent; }
.capas-panel .capa-ojo[aria-pressed="false"] svg { opacity: 0.2; }
.capas-panel li.apagada .capa-nombre, .capas-panel li.apagada .capa-mini { opacity: 0.45; }
.capa-mini { width: 26px; height: 26px; border: 1px solid var(--line); border-radius: 3px; }
.capa-nombre { min-width: 0; }
.capa-flechas { display: flex; gap: 2px; }
.capa-candado { color: var(--ink-soft); padding-right: 6px; }
.mascara-demo { display: grid; grid-template-columns: 200px 1fr; gap: 20px; align-items: center; }
@media (max-width: 560px) { .mascara-demo { grid-template-columns: 1fr; } }
.masc-vista { position: relative; height: 140px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; background: repeating-conic-gradient(#ccc 0 25%, #fff 0 50%) 0 0 / 16px 16px; }
.masc-capa { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: #576F6F; color: #fff; font-weight: 700; font-size: 1.3rem; }
.masc-muestra-fila { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--ink); }
.masc-muestra { width: 32px; height: 32px; border: 1px solid var(--ink-soft); border-radius: 3px; flex: none; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.masc-controles output { font-family: 'JetBrains Mono', monospace; }
.subtema-block .masc-texto { margin: 10px 0 0; font-size: 0.85rem; color: var(--ink); }
.histos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 560px) { .histos { grid-template-columns: 1fr; } }
.histos figure { margin: 0; }
.histos figcaption { margin-top: 6px; font-size: 0.75rem; color: var(--ink-soft); }
.histo { position: relative; height: 80px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); }
.histo::before { content: ""; position: absolute; inset: 6px 6px 14px; background: var(--accent); }
.histo::after { content: ""; position: absolute; left: 6px; right: 6px; bottom: 4px; height: 6px; background: linear-gradient(to right, #000, #fff); border: 1px solid var(--line); }
.histo-osc::before { clip-path: polygon(0 100%, 0 30%, 8% 5%, 20% 25%, 32% 60%, 45% 88%, 58% 100%); }
.histo-plana::before { clip-path: polygon(30% 100%, 38% 60%, 45% 15%, 52% 5%, 60% 35%, 68% 100%); }
.histo-buena::before { clip-path: polygon(0 100%, 0 85%, 10% 55%, 22% 35%, 35% 50%, 50% 20%, 64% 30%, 78% 50%, 90% 70%, 100% 88%, 100% 100%); }
/* Medios I · Tema 1: esquema del ordenador */
.pc-esquema svg { display: block; width: 100%; height: auto; font-family: 'Space Grotesk', sans-serif; }
.pc-caja { fill: var(--surface); stroke: var(--ink-soft); stroke-width: 1.5; }
.pc-c { fill: var(--surface); stroke: var(--ink-soft); stroke-width: 1.5; transition: stroke 0.2s ease; }
.pc-placa { fill: var(--nota-bg); }
.pc-oscuro { fill: var(--accent); }
.pc-pantalla { fill: var(--accent-soft); }
.pc-papel { fill: #fff; }
.pc-tecla { fill: var(--accent-soft); stroke: none; }
.pc-pista { fill: none; stroke: var(--accent); stroke-width: 1.2; opacity: 0.5; }
.pc-linea { stroke: var(--ink-soft); stroke-width: 1.5; }
.pc-punta { fill: var(--ink-soft); }
.pc-txt { font-size: 12px; fill: var(--ink); text-anchor: middle; }
.pc-txt-izq { text-anchor: start; font-size: 11px; fill: var(--ink-soft); }
.pc-txt-claro { fill: var(--surface); font-weight: 600; font-size: 11px; }
.pc-titulo { font-size: 12px; font-weight: 600; fill: var(--ink-soft); text-anchor: middle; }
.pc-grupo { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.08em; fill: var(--accent); text-anchor: middle; }
.pc-grupo-izq { text-anchor: start; }
.pc-pieza { cursor: pointer; outline: none; }
.pc-pieza:hover .pc-c, .pc-pieza:focus-visible .pc-c, .pc-pieza.activa .pc-c { stroke: #C0812E; stroke-width: 2.5; }
.pc-pieza.activa .pc-txt { fill: #C0812E; font-weight: 600; }
.pc-pieza:focus-visible .pc-txt { text-decoration: underline; }
.pc-info { margin-top: 14px; padding: 12px 14px; border-left: 3px solid #C0812E; background: var(--surface); border-radius: 0 6px 6px 0; min-height: 4.6em; }
.pc-info-titulo { display: block; font-size: 0.92rem; color: var(--ink); margin-bottom: 4px; }
.subtema-block .pc-info-texto { margin: 0; font-size: 0.86rem; }
.pc-esquema svg, .pc-info { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
@media print { .pc-info { display: none; } }
/* Botones de las demos */
.btn-demo { font: inherit; font-size: 0.82rem; font-weight: 600; padding: 7px 14px; border-radius: 4px; border: 1px solid var(--accent); background: var(--accent); color: var(--bg); cursor: pointer; transition: background-color 0.2s ease, color 0.2s ease; }
.btn-demo:hover { background: color-mix(in srgb, var(--accent) 85%, var(--ink)); }
.btn-demo-sec { background: transparent; color: var(--accent); }
.btn-demo-sec:hover { background: var(--accent-soft); }
.btn-demo:disabled { opacity: 0.4; cursor: default; }
/* Programación I · Tema 0: Internet y sus servicios */
.resultado:has(.capas-red) { margin-top: 28px; margin-bottom: 28px; }
.capas-red-rotulo { margin: 0 0 8px !important; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem !important; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent) !important; }
.subtema-block .capas-servicios { list-style: none; padding: 0; margin: 0; max-width: none; display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.capa-servicio { margin: 0; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); display: flex; flex-direction: column; gap: 3px; font-size: 0.78rem; color: var(--ink-soft); position: relative; }
.capa-servicio strong { color: var(--ink); font-size: 0.86rem; }
.capa-servicio::after { content: ""; position: absolute; left: 50%; bottom: -15px; height: 14px; border-left: 1px dashed var(--ink-soft); }
.cs-icono { font-size: 1rem; color: var(--accent); font-family: 'JetBrains Mono', monospace; font-weight: 600; }
.cs-app { margin-top: auto; padding-top: 4px; font-size: 0.72rem; border-top: 1px dashed var(--line); }
.capa-web { border-color: #C0812E; box-shadow: inset 0 0 0 1px #C0812E; }
.capa-web .cs-icono, .capa-web .cs-app { color: #C0812E; }
.capa-internet { margin-top: 14px; border-radius: 6px; background: var(--nota-bg); padding: 4px 14px 12px; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.capa-internet svg { display: block; width: 100%; height: 50px; }
.ci-cable { fill: none; stroke: var(--accent); stroke-width: 2; opacity: 0.6; vector-effect: non-scaling-stroke; }
.ci-nodo circle { fill: var(--accent); }
.ci-texto { display: flex; flex-direction: column; gap: 2px; font-size: 0.8rem; color: var(--ink-soft); }
.ci-texto strong { color: var(--ink); font-size: 0.9rem; }
@media (max-width: 760px) { .subtema-block .capas-servicios { grid-template-columns: repeat(3, 1fr); } .capa-servicio::after { display: none; } }
@media (max-width: 420px) { .subtema-block .capas-servicios { grid-template-columns: repeat(2, 1fr); } }
/* Programación I · Tema 0: visitar una web paso a paso */
.visita-svg { display: block; width: 100%; height: auto; font-family: 'Space Grotesk', sans-serif; }
.visita-svg text { font-size: 13px; fill: var(--ink); text-anchor: middle; }
.visita-svg .vi-peq { font-size: 10px; fill: var(--ink-soft); }
.vi-dns rect { fill: var(--surface); stroke: var(--ink-soft); stroke-width: 1.5; }
.vi-dns text:first-of-type { font-weight: 600; }
.vi-nube { fill: var(--nota-bg); stroke: var(--accent); stroke-width: 1.5; }
.vi-cable { fill: none; stroke: var(--ink-soft); stroke-width: 1.5; stroke-dasharray: 4 4; }
.vi-red circle { fill: var(--accent); }
.vi-enlace { fill: none; stroke: var(--accent); stroke-width: 1.2; }
.vi-ventana { fill: var(--surface); stroke: var(--ink-soft); stroke-width: 1.5; }
.vi-barra-sup { fill: var(--accent-soft); }
.vi-punto { fill: var(--ink-soft); opacity: 0.5; }
.vi-direccion { fill: var(--bg); stroke: var(--line); }
.visita-svg .vi-url { font-family: 'JetBrains Mono', monospace; font-size: 10px; text-anchor: start; fill: var(--ink); }
.vi-pagina { opacity: 0; transition: opacity 0.6s ease; }
.vi-pagina.visible { opacity: 1; }
.vi-p-cab { fill: var(--accent); } .vi-p-img { fill: #C0812E; opacity: 0.8; } .vi-p-txt { fill: var(--line); } .vi-p-boton { fill: var(--accent); }
.vi-rack { fill: var(--surface); stroke: var(--ink-soft); stroke-width: 1.5; }
.vi-luz { fill: var(--accent); }
.visita-svg .vi-archivo { font-family: 'JetBrains Mono', monospace; font-size: 10px; text-anchor: start; fill: var(--ink-soft); }
.vi-paquete { opacity: 0; transition: transform 0.9s ease-in-out, opacity 0.3s ease; }
.vi-paquete.visible { opacity: 1; }
.vi-paquete rect { fill: #C0812E; }
.visita-svg .vi-paquete text { fill: #fff; font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 500; }
.visita-svg, .visita-info { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.visita-info { display: flex; gap: 12px; align-items: baseline; margin-top: 10px; min-height: 3.2em; }
.visita-paso { font-size: 0.8rem; color: #C0812E; font-weight: 600; }
.subtema-block .visita-info p { margin: 0; font-size: 0.88rem; color: var(--ink); }
.visita-botones { display: flex; gap: 8px; margin-top: 10px; }
@media (prefers-reduced-motion: reduce) { .vi-paquete, .vi-pagina { transition: none; } }
@media print { .visita-botones { display: none; } }
/* Medios I · Tema 3: mezclador de luces RGB */
.mezcla-luz { display: grid; grid-template-columns: 200px 1fr; gap: 24px; align-items: center; }
@media (max-width: 560px) { .mezcla-luz { grid-template-columns: 1fr; } }
.mezcla-luz .sint { width: 200px; }
.ml-controles { display: grid; gap: 10px; }
.ml-controles label { display: grid; gap: 4px; font-size: 0.82rem; font-weight: 600; color: var(--ink); }
.ml-controles label span { display: flex; justify-content: space-between; }
.ml-controles output { font-family: 'JetBrains Mono', monospace; font-weight: 400; color: var(--ink-soft); }
.ml-rango { -webkit-appearance: none; appearance: none; height: 12px; border-radius: 6px; border: 1px solid var(--line); cursor: pointer; }
.ml-rango::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 2px solid #21231F; }
.ml-rango::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 2px solid #21231F; }
.ml-rango-r { background: linear-gradient(to right, #000, #f00); } .ml-rango-g { background: linear-gradient(to right, #000, #0f0); } .ml-rango-b { background: linear-gradient(to right, #000, #00f); }
.ml-resultado { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 0.85rem; color: var(--ink); }
.ml-muestra { width: 32px; height: 32px; border-radius: 4px; border: 1px solid var(--ink-soft); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.ml-retos { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 0.8rem; color: var(--ink-soft); }
.ml-retos .btn-demo { padding: 4px 10px; font-size: 0.76rem; }
/* Medios I · Tema 5: curva de Bézier y Buscatrazos */
.bz-svg { display: block; width: 100%; height: auto; touch-action: none; user-select: none; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.bz-curva { fill: none; stroke: var(--ink); stroke-width: 3; }
.bz-manejador-linea { stroke: var(--accent); stroke-width: 1.5; }
.bz-punto { cursor: grab; outline: none; }
.bz-punto:active { cursor: grabbing; }
.bz-ancla { fill: var(--surface); stroke: var(--accent); stroke-width: 2.5; }
.bz-tirador { fill: var(--accent); stroke: var(--surface); stroke-width: 2; }
.bz-punto:hover, .bz-punto:focus-visible, .bz-punto.arrastrando { stroke: var(--ink); }
.bz-tirador:hover, .bz-tirador:focus-visible, .bz-tirador.arrastrando { fill: var(--ink); }
.bz-pie { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-top: 8px; }
.bz-codigo { font-size: 0.8rem; }
@media print { .bz-pie .btn-demo { display: none; } }
.buscatrazos { display: grid; grid-template-columns: 300px 1fr; gap: 24px; align-items: center; }
@media (max-width: 620px) { .buscatrazos { grid-template-columns: 1fr; } }
.bt-svg { display: block; width: 100%; max-width: 300px; height: auto; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.bt-svg g { display: none; }
.bt-svg g.visible { display: inline; }
.bt-a { fill: var(--accent); } .bt-b { fill: #9DAEB3; opacity: 0.85; } .bt-r { fill: var(--accent); }
.bt-botones { display: flex; flex-wrap: wrap; gap: 6px; }
.bt-botones .btn-demo[aria-pressed="true"] { background: var(--accent); color: var(--bg); }
.subtema-block .bt-texto { margin: 12px 0 0; font-size: 0.88rem; color: var(--ink); min-height: 3em; }
/* Medios II: esquema del editor de Elementor y juego «¿entrada o página?» */
.el-ui { display: grid; grid-template-columns: 150px 1fr; grid-template-rows: auto 170px; grid-template-areas: "barra barra" "panel lienzo"; gap: 4px; font-size: 0.78rem; font-weight: 600; color: var(--ink); }
.el-ui > div { background: var(--surface); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 4px; padding: 8px 10px; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.el-ui span { font-weight: 400; font-size: 0.72rem; color: var(--ink-soft); }
.el-barra { grid-area: barra; } .el-panel { grid-area: panel; background: color-mix(in srgb, var(--nota-bg) 50%, var(--surface)) !important; }
.el-lienzo { grid-area: lienzo; align-items: center; justify-content: center; text-align: center; background: var(--nota-bg) !important; }
@media (max-width: 480px) { .el-ui { grid-template-columns: 100px 1fr; } }
.subtema-block .quiz-pregunta { margin: 0 0 12px; font-size: 1.05rem; font-weight: 600; color: var(--ink); min-height: 1.5em; }
.quiz-botones { display: flex; gap: 8px; }
.subtema-block .quiz-respuesta { margin: 12px 0 0; font-size: 0.88rem; color: var(--ink); min-height: 2.8em; }
.quiz-respuesta strong.bien { color: var(--accent); }
.subtema-block .quiz-marcador { margin: 4px 0 0; font-size: 0.75rem; color: var(--ink-soft); }
@media print { .quiz-ep { display: none; } }
/* Programación I · Probador de selectores */
.sel-demo { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; align-items: start; }
@media (max-width: 720px) { .sel-demo { grid-template-columns: 1fr; } }
.sel-zona { display: grid; gap: 8px; padding: 12px; border: 1px dashed color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 6px; background: var(--bg); font-family: 'JetBrains Mono', monospace; font-size: 0.74rem; color: var(--ink-soft); }
.sel-zona nav { display: flex; gap: 6px; flex-wrap: wrap; }
.sel-zona a, .sel-zona li, .subtema-block .sel-zona p { padding: 4px 8px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); color: var(--ink-soft); text-decoration: none; transition: background-color 0.2s ease, outline-color 0.2s ease; }
.subtema-block .sel-zona ul { list-style: none; margin: 0; padding: 6px; max-width: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; border: 1px dashed var(--line); border-radius: 4px; color: inherit; }
.sel-zona li { margin: 0; }
.subtema-block .sel-zona p { margin: 0; max-width: none; font-size: inherit; }
.sel-zona p a { display: inline-block; padding: 0 6px; }
.sel-zona form { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.sel-zona input[type="text"], .sel-zona input[type="email"] { font: inherit; width: 108px; padding: 4px 6px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); color: var(--ink-soft); pointer-events: none; }
.sel-zona input[type="checkbox"] { accent-color: var(--accent); pointer-events: none; }
.sel-check { display: flex; gap: 4px; align-items: center; }
.sel-zona .sel-si { outline: 2px solid var(--accent); outline-offset: 1px; background: var(--nota-bg) !important; color: var(--ink) !important; }
.sel-controles { display: grid; gap: 8px; }
.sel-controles label { font-size: 0.85rem; font-weight: 600; color: var(--ink); }
.sel-entrada { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); color: var(--ink); }
.sel-entrada:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.subtema-block .sel-salida { margin: 0; font-size: 0.85rem; color: var(--ink); min-height: 1.4em; }
.sel-ejemplos { display: flex; flex-wrap: wrap; gap: 6px; }
.sel-ejemplos .btn-demo { font-family: 'JetBrains Mono', monospace; font-weight: 500; font-size: 0.74rem; padding: 4px 9px; }
/* Programación II · desplegable de ejemplo con <details> */
.d-details { border: 1px solid var(--line); border-radius: 6px; background: var(--bg); padding: 10px 14px; max-width: 520px; }
.d-details summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.subtema-block .d-details p { margin: 8px 0 0; }
/* Tablas */
.tabla-wrap { overflow-x: auto; margin: 0 0 18px; max-width: 66ch; }
.tabla { border-collapse: collapse; width: 100%; font-size: 0.88rem; }
.tabla th, .tabla td { text-align: left; vertical-align: top; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.tabla th { font-weight: 600; color: var(--ink); background: var(--accent-soft); }
.tabla td { color: var(--ink-soft); }
.tabla tbody th { background: transparent; font-weight: 600; white-space: nowrap; }
@media (max-width: 800px) {
  .flujo { grid-template-columns: 1fr; }
  .flujo li:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -12px; transform: translate(-50%, 50%); }
  .linea-tiempo li { grid-template-columns: 1fr; gap: 2px; }
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar-toggle { display: inline-block; }
  aside { position: fixed; top: 0; left: 0; height: 100%; height: 100dvh; width: 280px; max-height: none;
    background: var(--surface); border-right: 1px solid var(--line); padding: calc(var(--alto-cabecera, 80px) + 12px + env(safe-area-inset-top,0px)) 20px 20px;
    transform: translateX(-100%); transition: transform 0.25s ease; z-index: 15; }
  aside.show { transform: translateX(0); }
  .scrim { position: fixed; inset: 0; background: rgba(0,0,0,0.35); z-index: 14; opacity: 0; pointer-events: none; transition: opacity 0.2s ease; }
  .scrim.show { opacity: 1; pointer-events: auto; }
  /* Menú superior plegado: botón hamburguesa que despliega las asignaturas debajo de la cabecera */
  .nav { position: relative; gap: 10px; }
  .sidebar-toggle { margin-left: auto; }
  .menu-toggle { display: flex; }
  .navlinks { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0;
    padding: 6px 24px 14px; background: var(--bg); border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08); font-size: 1rem; }
  .navlinks.open { display: flex; }
  .navlinks a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .navlinks a.active { margin: 0; padding: 12px 10px; border-radius: 4px; }
  .logo:has(.logo-ruta) .logo-nombre { display: none; }
  .logo:has(.logo-ruta) .logo-ruta::before { content: none; }
  .navlinks a:last-child { border-bottom: none; }
  .nav-sep { width: 100%; height: 1px; margin: 6px 0; }
}

/* En pantallas grandes todo crece un poco (textos, botones y espacios en rem) */
@media (min-width: 1400px) {
  html { font-size: 18px; }
}

/* Botón "descargar / imprimir tema" al final de cada tema */
.tema-print { padding-top: 8px; margin-top: 8px; }
.btn-print { font-family: inherit; font-size: 0.88rem; font-weight: 600; cursor: pointer; padding: 10px 16px; border-radius: 3px; border: 1px dashed var(--line); background: var(--surface); color: var(--ink); display: inline-flex; align-items: center; gap: 8px; }
.btn-print:hover { border-color: #7E807A; color: #2E6E6B; }
.tema-print { display: flex; flex-wrap: wrap; gap: 10px; }
.btn-print-secundario { font-weight: 500; color: var(--ink-soft); }

/* Cita de Epicteto en la portada */
.quote { margin: 0 auto; max-width: 720px; text-align: center; }
/* Comillas grandes en la misma línea que la frase; el conjunto queda centrado */
.quote blockquote { margin: 0; display: flex; justify-content: center; align-items: flex-start; gap: 14px; }
.quote blockquote::before { content: "\201C"; font-family: Georgia, 'Times New Roman', serif; font-size: 5rem; line-height: 0.75; height: 0.5em; color: #3A3C37; }
.quote p { margin: 0; font-size: 1.35rem; font-weight: 500; line-height: 1.3; letter-spacing: -0.01em; }
.quote figcaption { margin-top: 14px; font-family: 'JetBrains Mono'; font-size: 0.85rem; color: var(--ink-soft); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .quote blockquote::before { color: var(--ink-soft); } }
:root[data-theme="dark"] .quote blockquote::before { color: var(--ink-soft); }
@media (max-width: 600px) {
  .quote blockquote::before { font-size: 4rem; }
  .quote p { font-size: 1.15rem; }
}

/* Botón flotante «Volver arriba» (lo crea script.js en todas las páginas) */
.subir { position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 12;
  width: 40px; height: 40px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  background: transparent; color: var(--ink); border: none;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s, background 0.2s ease, color 0.2s ease; }
.subir.visible { opacity: 0.75; visibility: visible; transform: translateY(0); }
.subir.visible:hover { opacity: 1; color: #9DAEB3; }
.subir:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
@media print { .subir { display: none; } }

/* Aparición suave de los elementos de la portada.
   index.html pone la clase «anim» en <html> antes de pintar: así los elementos empiezan ocultos y no parpadean.
   script.js añade «anim-js» y los va mostrando (clase «visible») al cargar y al hacer scroll.
   Si el JavaScript fallara, una red de seguridad lo muestra todo a los 2,5 segundos. */
html.anim :is(.hero-grid > div:first-child > *, section:not(.hero) .section-head, .courses > *, .steps > *, .quote):not(.visible) { opacity: 0; transform: translateY(16px); }
html.anim:not(.anim-js) :is(.hero-grid > div:first-child > *, section:not(.hero) .section-head, .courses > *, .steps > *, .quote) { animation: mostrar-seguro 0.4s 2.5s forwards; }
@keyframes mostrar-seguro { to { opacity: 1; transform: none; } }
html.anim .revelar { transition: opacity 0.55s ease, transform 0.55s ease; transition-delay: var(--retraso, 0ms); }
html.anim .revelar.visible { opacity: 1; transform: none; }
/* Cita de la portada: primero las comillas, después la frase palabra a palabra (enfocándose) y al final el autor.
   El estado oculto no lleva transición (se oculta al instante); los retrasos solo se aplican al aparecer. */
html.anim .quote blockquote::before { display: inline-block; opacity: 0; transform: scale(0.6); }
html.anim .quote figcaption { opacity: 0; }
html.anim-js .quote .palabra { display: inline-block; opacity: 0; filter: blur(6px); transform: translateY(6px); }
html.anim .quote.visible blockquote::before { opacity: 1; transform: none; transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1); }
html.anim-js .quote.visible .palabra { opacity: 1; filter: none; transform: none; transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease; transition-delay: calc(300ms + var(--i) * 110ms); }
html.anim .quote.visible figcaption { opacity: 1; transition: opacity 0.6s ease; transition-delay: calc(500ms + var(--palabras, 6) * 110ms); }
/* Si el JavaScript fallara, las comillas y el autor aparecen solos */
html.anim:not(.anim-js) .quote figcaption, html.anim:not(.anim-js) .quote blockquote::before { animation: mostrar-seguro 0.3s 2.5s forwards; }
@media print { html.anim .quote .palabra, html.anim .quote figcaption, html.anim .quote blockquote::before { opacity: 1 !important; filter: none !important; transform: none !important; } }

/* Páginas de apuntes y recursos: más rápido y sutil que en la portada */
html.anim :is(.tema-block > h2, .tema-block > .intro, .tema-block > .nota, .subtema-block):not(.visible) { opacity: 0; transform: translateY(10px); }
html.anim:not(.anim-js) :is(.tema-block > h2, .tema-block > .intro, .tema-block > .nota, .subtema-block) { animation: mostrar-seguro 0.3s 2s forwards; }
html.anim .revelar.rapido { transition-duration: 0.45s; }
/* Al imprimir, todo visible aunque no se haya llegado a mostrar con el scroll */
@media print { html.anim .revelar, html.anim :is(.tema-block > h2, .tema-block > .intro, .tema-block > .nota, .subtema-block) { opacity: 1 !important; transform: none !important; animation: none !important; } }

/* Vista de impresión: solo el tema elegido, sin menú ni cabecera */
@media print {
  header, aside, .scrim, .no-print { display: none !important; }
  /* El footer sí se imprime: lleva la autoría y la licencia */
  footer { background: none; padding: 16px 0 0; margin-top: 24px; border-top: 1px solid #999; font-size: 8pt; }
  .foot-row { padding: 0; max-width: none; }
  .layout { display: block; padding: 0; max-width: none; }
  main { padding: 0; }
  .tema-block { padding-bottom: 0; }
  /* Sólo se ocultan los demás temas si se imprime con el botón;
     con Ctrl+P se imprime la página entera en vez de salir en blanco */
  body[data-print-tema] .tema-block:not(.print-target) { display: none; }
  /* Los apartados largos SÍ se pueden partir entre páginas (si no, dejan páginas en blanco);
     lo que no se parte son las piezas pequeñas */
  .subtema-block { padding: 14px 0; }
  .subtema-block h3, .subtema-block h4 { break-after: avoid; }
  .ley, .ficha, .nota, .profundizar, .resultado, figure, pre.code, .tabla tr, .ampliacion, .ux-fases li, .checklist li { break-inside: avoid; }
  /* Los navegadores no imprimen los fondos por defecto: el código pasa a texto oscuro sobre blanco */
  .code, pre.code { background: none !important; color: #000 !important; border: 1px solid #000; }
  .subtema-block code, .subtema-block kbd { background: none; border: 1px solid #bbb; }
  /* …y los ejemplos visuales, hechos con fondos de color, se imprimen con sus colores */
  .resultado, .resultado *, .ley-demo, .ley-demo *, .esquema, .esquema *, .linea-tiempo li::before, .flujo li, .tabla th {
    -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }
}