/* nilvo.app: la guía y las tiendas. Letra grande y contraste alto: buena parte de quien lee tiene más de
   sesenta años o lee para alguien que los tiene. Los colores son los de Nilvo (papel, tinta y jade). */
:root {
  --paper: #f6f3eb;
  --raised: #fffdf8;
  --ink: #172321;
  --muted: #4f5a57;
  --line: rgba(23, 35, 33, 0.14);
  --jade: #167d72;
  --jade-dark: #105f57;
  --jade-soft: #dcefe9;
  --gold-soft: #f4e9bf;
  --gold-ink: #6e5004;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(23, 35, 33, 0.06), 0 8px 24px rgba(23, 35, 33, 0.06);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #151a19;
    --raised: #1d2423;
    --ink: #eef2ef;
    --muted: #b3bdb9;
    --line: rgba(238, 242, 239, 0.14);
    --jade: #7ee0ce;
    --jade-dark: #a8ecdf;
    --jade-soft: #1f3a35;
    --gold-soft: #3a2f12;
    --gold-ink: #f1cf7e;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* Los fondos y núcleos decorativos de la portada se salen a propósito: nunca dan desplazamiento lateral. */
html, body { overflow-x: clip; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.1875rem/1.65 "Avenir Next", "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--jade-dark); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--jade); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 5.5vw, 3.4rem); font-weight: 800; margin: 0 0 18px; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2rem); font-weight: 800; margin: 2.2em 0 0.6em; }
h3 { font-size: 1.3rem; font-weight: 750; margin: 1.8em 0 0.5em; }
p { margin: 0 0 1em; }

.wrap { width: min(100% - 32px, 1080px); margin: 0 auto; }
.skip { position: absolute; left: -999px; top: 8px; padding: 10px 16px; background: var(--ink); color: var(--paper); border-radius: 10px; z-index: 10; }
.skip:focus { left: 16px; }

/* Cabecera */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top__in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none; font-size: 0.95rem; }
.menu { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.menu a { padding: 10px 12px; border-radius: 12px; color: var(--ink); font-size: 1rem; font-weight: 650; text-decoration: none; }
.menu a:hover { background: var(--jade-soft); }
.menu .menu__cta { background: var(--ink); color: var(--paper); }
.menu .menu__cta:hover { background: var(--jade-dark); color: var(--paper); }
@media (max-width: 720px) {
  .menu a:not(.menu__cta):not(:first-child) { display: none; }
}

/* Portada */
.eyebrow { margin: 0 0 10px; color: var(--jade-dark); font-size: 0.9rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.lead { color: var(--muted); font-size: clamp(1.2rem, 2.4vw, 1.4rem); line-height: 1.55; max-width: 44ch; }
.hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: center; padding: 64px 0 40px; }
.hero--small { display: block; padding: 56px 0 8px; }
.hero--center { display: block; text-align: center; padding: 80px 0; }
.hero--center .lead { margin-inline: auto; }
.hero__small { margin-top: 14px; color: var(--muted); font-size: 1rem; }
.hero__art { margin: 0; justify-self: center; }
.hero__art img { width: min(320px, 100%); border-radius: 36px; box-shadow: var(--shadow), 0 30px 60px rgba(23, 35, 33, 0.12); border: 1px solid var(--line); }
.mark { margin-bottom: 18px; }
@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding-top: 40px; }
  .hero__art img { width: min(240px, 70vw); }
}

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 24px 0; }
.pillars div { padding: 24px; background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius); }
.pillars h2 { margin: 0 0 8px; font-size: 1.25rem; }
.pillars p { margin: 0; color: var(--muted); font-size: 1.05rem; }
@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }

.simple { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; margin: 56px auto; padding: 40px; background: var(--jade-soft); border-radius: 28px; }
.simple h2 { margin-top: 0; }
.checks { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: center; padding: 14px 18px; background: var(--raised); border-radius: 14px; font-weight: 650; }
.checks li::before { content: ""; flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--jade) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 12.5 4 4L18 8' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat; }
@media (max-width: 820px) { .simple { grid-template-columns: 1fr; padding: 28px 22px; } }

.band { margin: 56px auto 72px; padding: 48px 32px; text-align: center; background: var(--ink); color: var(--paper); border-radius: 28px; }
.band h2 { margin-top: 0; }
.band p { max-width: 52ch; margin: 0 auto 22px; color: color-mix(in srgb, var(--paper) 80%, transparent); }
.band .stores { justify-content: center; }
.band .store { background: var(--paper); color: var(--ink); }

/* Botones de tienda */
.stores { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.stores--center { justify-content: center; }
.stores--compact { margin-top: 14px; }
.store { display: inline-flex; align-items: center; gap: 12px; min-height: 60px; padding: 10px 22px 10px 18px; border-radius: 16px; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 750; font-size: 1.15rem; line-height: 1.1; }
.store small { display: block; font-size: 0.75rem; font-weight: 600; opacity: 0.85; }
.store svg { width: 28px; height: 28px; flex: none; }
.store:hover { background: var(--jade-dark); color: var(--paper); }
.store[hidden] { display: none; }
.stores--compact .store { min-height: 52px; font-size: 1.05rem; }

/* Tarjetas y estanterías */
.shelf { padding: 8px 0 24px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.card { display: flex; flex-direction: column; gap: 8px; padding: 24px; background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); text-decoration: none; box-shadow: var(--shadow); transition: transform 160ms ease, border-color 160ms ease; }
.card:hover { transform: translateY(-2px); border-color: var(--jade); }
.card__cat { color: var(--jade-dark); font-size: 0.85rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
.card__title { font-size: 1.25rem; font-weight: 800; line-height: 1.25; }
.card__text { color: var(--muted); font-size: 1.02rem; line-height: 1.5; }
.card__meta { margin-top: auto; padding-top: 6px; color: var(--muted); font-size: 0.9rem; }
.more { margin-top: 20px; font-weight: 700; }
@media (prefers-reduced-motion: reduce) { .card { transition: none; } .card:hover { transform: none; } }

/* Artículo */
.article { max-width: 760px; padding: 32px 0 24px; }
.crumbs { font-size: 0.95rem; color: var(--muted); margin-bottom: 26px; }
.crumbs a { color: var(--muted); }
.article__head { margin-bottom: 28px; }
.meta { color: var(--muted); font-size: 0.98rem; }
.toc { margin: 0 0 32px; padding: 20px 24px; background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius); }
.toc p { margin: 0 0 8px; font-weight: 800; }
.toc ol { margin: 0; padding-left: 1.3em; }
.toc li { margin: 4px 0; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: 0.4em 0; }
.prose blockquote { margin: 1.6em 0; padding: 4px 0 4px 22px; border-left: 4px solid var(--jade); color: var(--ink); font-size: 1.25rem; }
.prose h2:first-child { margin-top: 0; }
.table-wrap { overflow-x: auto; margin: 1.4em 0 1.8em; border: 1px solid var(--line); border-radius: 14px; background: var(--raised); }
table { width: 100%; border-collapse: collapse; font-size: 1rem; line-height: 1.45; }
th, td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
thead th { background: var(--jade-soft); font-weight: 800; }
tbody th { font-weight: 750; min-width: 9rem; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }

.cta { display: flex; gap: 18px; align-items: flex-start; margin: 40px 0; padding: 24px; background: var(--jade-soft); border-radius: 22px; }
.cta__mark { flex: none; border-radius: 12px; }
.cta__title { margin: 0 0 4px; font-weight: 800; font-size: 1.2rem; }
.cta p { margin: 0; }
@media (max-width: 560px) { .cta { flex-direction: column; } }

.sources { margin-top: 40px; padding-top: 8px; border-top: 1px solid var(--line); font-size: 1rem; }
.sources h2 { font-size: 1.2rem; margin: 18px 0 10px; }
.sources li { margin: 6px 0; overflow-wrap: anywhere; }
.note { margin-top: 28px; padding: 16px 18px; background: var(--gold-soft); color: var(--gold-ink); border-radius: 14px; font-size: 1rem; }
.related { padding: 8px 0 56px; }
.related h2 { margin-top: 24px; }

/* Pie */
.foot { margin-top: 32px; padding: 40px 0 28px; border-top: 1px solid var(--line); background: var(--raised); font-size: 1rem; }
.foot__in { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.foot__in p { color: var(--muted); }
.foot nav { display: flex; flex-direction: column; gap: 8px; }
.foot nav a { color: var(--ink); text-decoration: none; }
.foot nav a:hover { text-decoration: underline; }
.foot__h { margin: 0 0 4px; font-weight: 800; color: var(--ink) !important; }
.foot__note { margin-top: 28px; color: var(--muted); font-size: 0.92rem; }
@media (max-width: 720px) { .foot__in { grid-template-columns: 1fr; } }

/* Lo que ya había en portal/ (legal, soporte) usa sus propios estilos; aquí solo el aviso de dato pendiente. */
.pendiente { color: var(--gold-ink); }

/* ---------------------------------------------------------------- Pase editorial
   Titulares de revista (serif del sistema, sin descargas), portadas con los trazos de Nilvo y un color por
   sección. Todo decorativo va con aria-hidden. */
h1, h2, .card__title, .cta__title, .stat__n {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  letter-spacing: -0.015em;
}
h1 { font-weight: 700; }
h2 { font-weight: 700; }
.hl { background: linear-gradient(transparent 62%, color-mix(in srgb, var(--accent, #D3A32A) 45%, transparent) 62%); padding: 0 0.08em; }

.glyphs { display: block; width: 100%; height: auto; overflow: visible; }

/* Portada: composición de núcleos alrededor del móvil */
.hero { position: relative; }
.hero::before {
  content: ""; position: absolute; inset: -80px -50vw -220px; z-index: -1;
  background: radial-gradient(60% 70% at 85% 30%, color-mix(in srgb, #2D8C83 14%, transparent), transparent 70%),
              radial-gradient(40% 50% at 10% 90%, color-mix(in srgb, #D3A32A 14%, transparent), transparent 70%);
}
.hero__art { position: relative; }
.hero__art .float { position: absolute; width: 132px; filter: drop-shadow(0 12px 22px rgba(23, 35, 33, 0.14)); }
.hero__art .float--a { top: 6%; left: -34%; transform: rotate(-8deg); }
.hero__art .float--b { bottom: 10%; right: -26%; transform: rotate(7deg); }
@media (max-width: 1100px) { .hero__art .float--a { left: -18%; } .hero__art .float--b { right: -12%; } }
@media (max-width: 820px) { .hero__art .float { width: 96px; } .hero__art .float--a { left: -6%; } .hero__art .float--b { right: -6%; } }

/* Cifras con fuente */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 8px auto 24px; border-block: 1px solid var(--line); }
.stat { padding: 28px 24px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat__n { display: block; font-size: clamp(2.6rem, 6vw, 3.6rem); font-weight: 700; line-height: 1; color: var(--c, var(--jade-dark)); }
.stat__t { display: block; margin-top: 10px; font-size: 1.05rem; line-height: 1.45; }
.stat__s { display: block; margin-top: 8px; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 820px) { .stats { grid-template-columns: 1fr; } .stat + .stat { border-left: 0; border-top: 1px solid var(--line); } }

/* Tarjetas con portada */
.card { padding: 0; overflow: hidden; gap: 0; }
.card > :not(.card__cover) { padding-inline: 22px; }
.card__cover { display: block; padding: 22px 28px 14px; background: color-mix(in srgb, var(--cat, #2D8C83) 16%, var(--raised)); border-bottom: 1px solid var(--line); }
.card__cover .glyphs { max-width: 260px; margin: 0 auto; }
.card__cat { padding-top: 18px; color: color-mix(in srgb, var(--cat, #2D8C83) 80%, var(--ink)); }
.card__title { padding-top: 6px; font-size: 1.35rem; }
.card__text { padding-top: 8px; }
.card__meta { padding-bottom: 20px; }
.card:hover { border-color: var(--cat, var(--jade)); }

/* Artículo */
.article-band { background: color-mix(in srgb, var(--cat) 16%, var(--paper)); border-bottom: 1px solid var(--line); }
.article-band__in { max-width: 760px; padding: 36px 0 18px; }
.article-band .glyphs { max-width: 520px; }
.article .eyebrow { color: color-mix(in srgb, var(--cat) 80%, var(--ink)); }
.article h1 { font-size: clamp(2.2rem, 5.2vw, 3.3rem); }
.prose > p:first-child { font-size: 1.32rem; line-height: 1.6; }
.prose h2 { padding-top: 0.4em; }
.prose h2::before { content: ""; display: block; width: 44px; height: 5px; margin-bottom: 14px; border-radius: 3px; background: var(--cat, var(--jade)); }
.prose blockquote { position: relative; padding: 18px 0 18px 64px; border: 0; font-family: "Iowan Old Style", Palatino, Georgia, serif; font-size: 1.45rem; line-height: 1.45; }
.prose blockquote::before { content: "“"; position: absolute; left: 0; top: -6px; font-size: 5rem; line-height: 1; color: var(--cat, var(--jade)); font-family: Georgia, serif; }
.prose strong { background: linear-gradient(transparent 70%, color-mix(in srgb, var(--cat, #D3A32A) 22%, transparent) 70%); }
.toc { border-left: 5px solid var(--cat, var(--jade)); }
.cta { background: linear-gradient(135deg, var(--jade-soft), color-mix(in srgb, #D3A32A 14%, var(--jade-soft))); }

/* Índice de la guía: cabecera de cada sección con su color */
.shelf h2 { display: flex; align-items: center; gap: 12px; }
.shelf h2::before { content: ""; width: 14px; height: 14px; border-radius: 4px; background: var(--cat, var(--jade)); }
/* El color de cada sección: los de las capas del juego. */
#ciencia, .cat-ciencia { --cat: #6D73B9; --c: #6D73B9; }
#practica, .cat-practica { --cat: #2D8C83; --c: #2D8C83; }
#juegos, .cat-juegos { --cat: #E06B5F; --c: #E06B5F; }
#nilvo, .cat-nilvo { --cat: #D3A32A; --c: #D3A32A; }

/* «Ver toda la guía»: una tarjeta más, en el color de la marca. */
.card--all { --cat: #172321; }
.card--all .card__cover { background: color-mix(in srgb, #2D8C83 22%, var(--raised)); }
.card--all .card__cat { color: var(--jade-dark); }
.card__go { color: var(--jade-dark); font-weight: 750; font-size: 1rem; }

/* Capturas de la app dentro de un artículo: marco de teléfono discreto y pie de foto. */
.shots { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; margin: 2em 0 2.2em; }
.shot { margin: 0; width: min(260px, 72vw); text-align: center; }
.shots--1 .shot { width: min(300px, 78vw); }
.shot img { display: block; width: 100%; border-radius: 30px; border: 1px solid var(--line); box-shadow: var(--shadow), 0 22px 44px rgba(23, 35, 33, 0.12); background: var(--raised); }
.shot figcaption { margin-top: 12px; color: var(--muted); font-size: 0.95rem; line-height: 1.4; }

.showcase { padding: 40px 0 8px; text-align: center; }
.showcase h2 { margin-top: 0; }
.showcase .shot { width: min(250px, 72vw); }