/* =====================================================================
   Estilo retro «web de los 2000» (Apariencia → Diseño → Estilo general).
   Se carga DESPUÉS de site.css y solo cambia el aspecto: la estructura,
   el SEO, la accesibilidad y la lectura (Georgia 18–19 px, columna
   estrecha, buen contraste) se mantienen.
   ===================================================================== */

.style-y2k {
  /* Versión «suave»: mismo espíritu 2000 (barras de título, cajas, botones
     88×31) pero con esquinas redondeadas, bordes finos, sombras difusas y
     colores menos saturados, al estilo de Windows XP / Mac OS X de 2003. */
  --y2k-desk: #e4eaf3;
  --y2k-desk-2: #cfd9e8;
  --y2k-panel: #ffffff;
  --y2k-silver: #f1f0ec;
  --y2k-silver-2: #f8f7f4;
  --y2k-hi: #ffffff;
  --y2k-lo: #aab4c5;
  --y2k-dark: #8791a5;
  --y2k-edge: #cfd6e2;
  --y2k-edge-strong: #9fabc0;
  --y2k-btn: linear-gradient(#ffffff, #eceae4);
  --y2k-btn-hover: linear-gradient(#ffffff, #f4f2ec);
  --y2k-title-1: #3d5f9f;
  --y2k-title-2: #6a8cc8;
  --y2k-title-3: #c4d5ef;
  --y2k-link: #2b52a3;
  --y2k-visited: #6a4f98;
  --y2k-head: #2d4a85;
  --y2k-red: #bf5540;
  --y2k-yellow: #ffecad;
  --y2k-ui: #2a2f3a;
  --y2k-field: #ffffff;
  --y2k-r: 6px;
  --y2k-shadow: 0 1px 2px rgba(40,60,100,.08), 0 4px 14px rgba(40,60,100,.07);
  --y2k-shadow-lg: 0 8px 28px rgba(30,45,80,.18);
  --bg: var(--y2k-panel);
  --bg-soft: #f6f6f2;
  --bg-card: #ffffff;
  --ink: #262a33;
  --ink-2: #3b404c;
  --ink-3: #69707f;
  --line: #d6dbe4;
  --accent: #3d5f9f;
  --accent-ink: #ffffff;
  --accent-soft: #eaf0f9;
  --code-bg: #f5f5f1;
  --radius: 6px;
  --font: Verdana, Tahoma, "DejaVu Sans", Geneva, sans-serif;
  --font-head: "Trebuchet MS", "Lucida Grande", Tahoma, sans-serif;
  --font-read: Georgia, "Times New Roman", Times, serif;
  --fs-base: 15px;
  --y2k-w: min(1360px, 100% - 48px);
  --y2k-head-h: 64px;
  --y2k-side-w: 320px;
  --fs-read: 18px;
  --hw: 700;
  color-scheme: light;
}

/* Versión nocturna retro (modo oscuro del dispositivo o forzado). */
.style-y2k.scheme-dark {
  --y2k-desk: #0f1430; --y2k-desk-2: #1a2147; --y2k-panel: #151a36; --y2k-silver: #1d2344; --y2k-silver-2: #242b50;
  --y2k-hi: #3a426c; --y2k-lo: #2c3358; --y2k-dark: #0a0d22; --y2k-edge: #2c3459; --y2k-edge-strong: #4a5585;
  --y2k-btn: linear-gradient(#2a3159, #1f2548); --y2k-btn-hover: linear-gradient(#323a66, #262d52);
  --y2k-title-1: #2c4079; --y2k-title-2: #435f9f; --y2k-title-3: #6078b0;
  --y2k-link: #9dbcf5; --y2k-visited: #c6b0f0; --y2k-head: #c3d4f7; --y2k-red: #f09a86; --y2k-yellow: #f3dc8c; --y2k-ui: #e6e9f4; --y2k-field: #10152f;
  --y2k-shadow: 0 1px 2px rgba(0,0,0,.25), 0 4px 14px rgba(0,0,0,.25); --y2k-shadow-lg: 0 8px 28px rgba(0,0,0,.45);
  --bg: #151a36; --bg-soft: #1b2142; --bg-card: #181e3c; --ink: #e6e8f2; --ink-2: #cbd0e3; --ink-3: #a0a7c4; --line: #2e355c;
  --accent: #9dbcf5; --accent-ink: #0f1430; --accent-soft: #222a55; --code-bg: #10152f; color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  .style-y2k.scheme-auto {
    --y2k-desk: #0f1430; --y2k-desk-2: #1a2147; --y2k-panel: #151a36; --y2k-silver: #1d2344; --y2k-silver-2: #242b50;
    --y2k-hi: #3a426c; --y2k-lo: #2c3358; --y2k-dark: #0a0d22; --y2k-edge: #2c3459; --y2k-edge-strong: #4a5585;
    --y2k-btn: linear-gradient(#2a3159, #1f2548); --y2k-btn-hover: linear-gradient(#323a66, #262d52);
    --y2k-title-1: #2c4079; --y2k-title-2: #435f9f; --y2k-title-3: #6078b0;
    --y2k-link: #9dbcf5; --y2k-visited: #c6b0f0; --y2k-head: #c3d4f7; --y2k-red: #f09a86; --y2k-yellow: #f3dc8c; --y2k-ui: #e6e9f4; --y2k-field: #10152f;
    --y2k-shadow: 0 1px 2px rgba(0,0,0,.25), 0 4px 14px rgba(0,0,0,.25); --y2k-shadow-lg: 0 8px 28px rgba(0,0,0,.45);
    --bg: #151a36; --bg-soft: #1b2142; --bg-card: #181e3c; --ink: #e6e8f2; --ink-2: #cbd0e3; --ink-3: #a0a7c4; --line: #2e355c;
    --accent: #9dbcf5; --accent-ink: #0f1430; --accent-soft: #222a55; --code-bg: #10152f; color-scheme: dark;
  }
}

/* ---------- Fondo de escritorio y «ventana» central ---------- */
.style-y2k {
  background-color: var(--y2k-desk);
  background-image:
    radial-gradient(var(--y2k-desk-2) 1px, transparent 1.6px),
    linear-gradient(180deg, var(--y2k-desk-2), var(--y2k-desk) 420px);
  background-size: 16px 16px, 100% 100%;
  font-size: var(--fs-base);
  line-height: 1.6;
}
.style-y2k main, .style-y2k .y2k-cols { background: transparent; }
.style-y2k .site-header, .style-y2k .site-footer, .style-y2k .y2k-cols {
  width: var(--y2k-w);
  margin-inline: auto;
}
.style-y2k .y2k-cols {
  display: grid; grid-template-columns: minmax(0, 1fr) var(--y2k-side-w); gap: 36px; align-items: start;
  background: var(--y2k-panel); padding: 28px 32px; margin-top: 20px;
  border: 1px solid var(--y2k-edge);
  box-shadow: var(--y2k-shadow); border-radius: var(--y2k-r);
}
.style-y2k main:not(.y2k-main) {
  width: var(--y2k-w); margin: 20px auto 0; background: var(--y2k-panel); padding: 28px 0 48px; border-radius: var(--y2k-r); box-shadow: var(--y2k-shadow);
  border: 1px solid var(--y2k-edge);
}
.style-y2k .y2k-main { min-height: 0; padding-bottom: 24px; min-width: 0; }
.style-y2k .y2k-main .wrap, .style-y2k .y2k-main .wrap-narrow, .style-y2k .y2k-main .wrap-wide { width: 100%; }
.style-y2k .y2k-main .post-layout, .style-y2k .y2k-main .post-layout.has-toc { width: 100%; max-width: 780px; display: block; margin: 0 auto; }
@media (max-width: 1100px) { .style-y2k { --y2k-side-w: 270px; } .style-y2k .y2k-cols { gap: 24px; padding: 22px; } }
@media (max-width: 900px) {
  .style-y2k { --y2k-w: min(100%, 100% - 20px); }
  .style-y2k .y2k-cols { grid-template-columns: 1fr; padding: 14px; margin-top: 12px; }
  .style-y2k .y2k-side { order: 2; }
}

/* ---------- Cabecera: barra de título flotante (siempre arriba) ---------- */
.style-y2k .site-header {
  position: sticky; top: 0; z-index: 60; margin-top: 0; border-radius: 0 0 var(--y2k-r) var(--y2k-r); box-shadow: var(--y2k-shadow); border: 1px solid var(--y2k-edge);
  background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 45%, var(--y2k-title-3)); backdrop-filter: none; -webkit-backdrop-filter: none;
}
.style-y2k.header-static .site-header { position: relative; }
.style-y2k .header-inner { width: 100%; height: auto; min-height: var(--y2k-head-h); padding: 0 10px 0 0; flex-wrap: nowrap; gap: 14px; align-items: center; }
.style-y2k .brand {
  flex: 0 0 auto; padding: 8px 18px; color: #fff; font: 700 22px/1.2 var(--font-head); letter-spacing: 0;
  text-shadow: 0 1px 2px rgba(0,0,0,.25);
}
.style-y2k .brand::before { content: "✦"; margin-right: 8px; color: var(--y2k-yellow); }
.style-y2k .brand img { border-radius: var(--y2k-r); image-rendering: auto; }
.style-y2k .main-nav { margin: 0 0 0 auto; flex: 0 1 auto; }
.style-y2k .main-nav > ul { gap: 6px; padding: 0; flex-wrap: wrap; justify-content: flex-end; }
.style-y2k .main-nav > ul > li > a, .style-y2k .main-nav a.nav-cta {
  font: 700 14px/1 var(--font); color: var(--y2k-ui) !important; padding: 9px 14px; border-radius: var(--y2k-r); margin: 0;
  background: var(--y2k-btn); transition: background .15s, border-color .15s; border: 1px solid var(--y2k-edge);
}
.style-y2k .main-nav > ul > li > a:hover { background: var(--y2k-btn-hover); border-color: var(--y2k-edge-strong); color: var(--y2k-ui); }
.style-y2k .main-nav > ul > li > a:active, .style-y2k .main-nav > ul > li > a[aria-current] {
  border-color: var(--y2k-edge-strong); background: var(--y2k-silver-2);
}
.style-y2k .main-nav a.nav-cta { background: var(--y2k-yellow); color: #2a2f3a !important; border-color: #e0c979; }
.style-y2k .main-nav .sub-menu { border-radius: var(--y2k-r); border: 1px solid var(--y2k-edge); background: var(--y2k-silver); box-shadow: var(--y2k-shadow-lg); padding: 3px; }
.style-y2k .main-nav .sub-menu a { color: var(--y2k-ui); font: 13px var(--font); border-radius: var(--y2k-r); }
.style-y2k .main-nav .sub-menu a:hover { background: var(--y2k-title-1); color: #fff; }
.style-y2k .header-tools { padding: 0; }
.style-y2k .icon-btn { border-radius: var(--y2k-r); color: var(--y2k-ui); background: var(--y2k-btn); border: 1px solid var(--y2k-edge); width: 38px; height: 34px; }
.style-y2k .search-panel { background: var(--y2k-silver); border-top: 1px solid var(--y2k-edge); border-radius: 0 0 var(--y2k-r) var(--y2k-r); padding: 10px 0; }
.style-y2k.header-accent .site-header, .style-y2k.header-dark .site-header { background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 45%, var(--y2k-title-3)); }
.style-y2k.header-accent .main-nav > ul > li > a, .style-y2k.header-dark .main-nav > ul > li > a, .style-y2k.header-accent .icon-btn, .style-y2k.header-dark .icon-btn { color: var(--y2k-ui); }
@media (max-width: 820px) {
  .style-y2k .site-header { margin-top: 0; border-radius: 0 0 var(--y2k-r) var(--y2k-r); }
  .style-y2k .header-inner { flex-wrap: wrap; gap: 0; padding-right: 8px; min-height: 54px; }
  .style-y2k .brand { flex: 1 1 auto; font-size: 19px; padding: 8px 14px; }
  .style-y2k .main-nav { position: static; display: none; flex: 1 1 100%; margin: 0; background: var(--y2k-silver); border: 0; border-top: 1px solid var(--y2k-edge); }
  .style-y2k .main-nav.open { display: block; }
  .style-y2k .main-nav > ul { flex-direction: column; padding: 8px; }
  .style-y2k .header-tools { margin-left: auto; }
}

/* ---------- Barra de aviso: marquesina (se para al pasar el ratón) ---------- */
.style-y2k .announce { background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2)); color: #fff4c4; border-radius: var(--y2k-r); font: 700 13px/1 var(--font); overflow: hidden; width: var(--y2k-w); margin: 14px auto 0; border: 1px solid var(--y2k-edge); }
.style-y2k .announce-inner { display: inline-block; padding: 9px 0 9px 100%; white-space: nowrap; animation: y2k-marquee 22s linear infinite; }
.style-y2k .announce:hover .announce-inner, .style-y2k .announce:focus-within .announce-inner { animation-play-state: paused; }
.style-y2k .announce a { color: #fff4c4; }
.style-y2k .announce-close { border-radius: var(--y2k-r); background: var(--y2k-btn); color: var(--y2k-ui); border: 1px solid var(--y2k-edge); padding: 2px 7px; font-size: 14px; opacity: 1; }
@keyframes y2k-marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) { .style-y2k .announce-inner { animation: none; padding: 9px 44px; white-space: normal; } }

/* ---------- Tipografía y enlaces clásicos ---------- */
.style-y2k a { color: var(--y2k-link); text-decoration: underline; }
.style-y2k a:visited { color: var(--y2k-visited); }
.style-y2k a:hover { color: var(--y2k-red); }
.style-y2k h1, .style-y2k h2, .style-y2k h3, .style-y2k .post-title, .style-y2k .hero-title, .style-y2k .archive-title, .style-y2k .section-title { color: var(--y2k-head); letter-spacing: 0; }
.style-y2k .hero { padding: 6px 0 10px; }
.style-y2k .hero-title { font-size: clamp(26px, 3.4vw, 36px); max-width: none; line-height: 1.15; }
.style-y2k .hero-lead { font: 15px/1.6 var(--font); color: var(--ink-2); }
.style-y2k .section-title {
  font: 700 15px/1 var(--font-head); color: #fff; padding: 7px 10px; margin: 20px 0 14px; border-radius: var(--y2k-r);
  background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 70%, var(--y2k-title-3));
}
.style-y2k .kicker { color: var(--y2k-red); letter-spacing: .04em; font: 700 11px/1.2 var(--font); text-decoration: none; }
.style-y2k .meta, .style-y2k .muted { color: var(--ink-3); }

/* Chips de categorías → botoncitos */
.style-y2k .chips a { border-radius: var(--y2k-r); background: var(--y2k-btn); color: var(--y2k-ui); font: 12px var(--font); text-decoration: none; border: 1px solid var(--y2k-edge); padding: 4px 9px; }
.style-y2k .chips a:hover { background: var(--y2k-yellow); color: #2a2f3a; border-color: #e0c979; }

/* ---------- Tarjetas de entradas: fichas con marco ---------- */
.style-y2k .grid { gap: 16px; }
.style-y2k .grid-3, .style-y2k .grid-4 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1180px) { .style-y2k .grid-3, .style-y2k .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .style-y2k .grid-3, .style-y2k .grid-4, .style-y2k .grid-2 { grid-template-columns: 1fr; } }
.style-y2k .card { gap: 8px; padding: 8px; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--y2k-r); box-shadow: var(--y2k-shadow); transition: transform .18s ease, box-shadow .18s ease, border-color .18s; }
.style-y2k .card:hover { transform: translateY(-2px); box-shadow: var(--y2k-shadow-lg); border-color: var(--y2k-edge-strong); }
@media (prefers-reduced-motion: reduce) { .style-y2k .card, .style-y2k .card:hover { transition: none; transform: none; } }
.style-y2k .card-media { border-radius: calc(var(--y2k-r) - 2px); border: 1px solid var(--y2k-edge); }
.style-y2k .card:hover .card-media img { transform: none; }
.style-y2k .card-title { font: 700 18px/1.3 var(--font-head); }
.style-y2k .card-title a { color: var(--y2k-link); text-decoration: underline; }
.style-y2k .card-title a:visited { color: var(--y2k-visited); }
.style-y2k .card-excerpt { font: 14px/1.6 var(--font); }
.style-y2k .card-placeholder { background: repeating-linear-gradient(45deg, var(--bg-soft) 0 8px, var(--y2k-silver-2) 8px 16px); color: var(--y2k-head); }
.style-y2k .card-big { grid-template-columns: 1fr 1fr; gap: 16px; padding: 10px; }
.style-y2k .card-big .card-title { font-size: clamp(20px, 2.4vw, 26px); }
@media (max-width: 820px) { .style-y2k .card-big { grid-template-columns: 1fr; } }
.style-y2k .featured { margin: 10px 0 20px; }
.style-y2k .post-list .card { grid-template-columns: 200px 1fr; }

/* ---------- Botones con relieve ---------- */
.style-y2k .btn, .style-y2k .cc-btn, .style-y2k .page-num, .style-y2k .page-link {
  border-radius: var(--y2k-r); font: 700 13px/1.2 var(--font); color: var(--y2k-ui); background: var(--y2k-btn); text-decoration: none; filter: none;
  border: 1px solid var(--y2k-edge); box-shadow: none; padding: 7px 14px;
}
.style-y2k .btn:hover, .style-y2k .page-num:hover, .style-y2k .page-link:hover { background: var(--y2k-btn-hover); border-color: var(--y2k-edge-strong); color: var(--y2k-ui); filter: none; }
.style-y2k .btn:active, .style-y2k .cc-btn:active { border-color: var(--y2k-edge-strong); transform: none; }
.style-y2k .page-num[aria-current] { background: var(--y2k-title-1); color: #fff; border-color: var(--y2k-edge-strong); }
.style-y2k .btn-ghost { background: var(--y2k-silver-2); }
.style-y2k .linklike { color: var(--y2k-link); }

/* Formularios «hundidos» */
.style-y2k .form input[type=text], .style-y2k .form input[type=email], .style-y2k .form input[type=url], .style-y2k .form textarea, .style-y2k .search-form input {
  border-radius: var(--y2k-r); border: 1px solid var(--y2k-edge); background: var(--y2k-field); color: var(--y2k-ui); font: 14px var(--font); box-shadow: inset 0 1px 2px rgba(0,0,0,.08);
}
.style-y2k .form input:focus, .style-y2k .form textarea:focus, .style-y2k .search-form input:focus { border-color: var(--y2k-title-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--y2k-title-2) 22%, transparent); outline: none; }

/* ---------- Artículo: lectura cómoda, marco clásico ---------- */
.style-y2k .y2k-main .post-header, .style-y2k .y2k-main .post-cover, .style-y2k .y2k-main .post-footer { width: 100%; max-width: 780px; margin-inline: auto; }
.style-y2k .post-header { padding: 4px 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.style-y2k .post-title { font: 700 clamp(26px, 3.2vw, 36px)/1.18 var(--font-head); margin: 8px 0 12px; text-wrap: balance; }
.style-y2k .post-meta { font: 12.5px var(--font); gap: 6px 14px; }
.style-y2k .post-meta a { color: var(--y2k-link); }
.style-y2k .avatar { border-radius: 50%; background: var(--y2k-btn); color: var(--y2k-head); border: 1px solid var(--y2k-edge); }
.style-y2k .post-cover { margin-bottom: 26px; }
.style-y2k .post-cover img, .style-y2k .prose img { border-radius: var(--y2k-r); border: 1px solid var(--line); padding: 3px; background: var(--bg-card); box-shadow: var(--y2k-shadow); }
.style-y2k .prose { font-family: var(--font-read); font-size: var(--fs-read); line-height: 1.78; color: var(--ink); }
.style-y2k .prose h2, .style-y2k .prose h3 { font-family: var(--font-head); color: var(--y2k-head); text-wrap: balance; }
.style-y2k .prose h2 { padding-bottom: 6px; border-bottom: 2px solid; border-image: linear-gradient(90deg, var(--y2k-title-2), transparent 85%) 1; }
.style-y2k .prose a { color: var(--y2k-link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
.style-y2k .prose a:hover { text-decoration-thickness: 2px; }
.style-y2k .prose a:visited { color: var(--y2k-visited); }
.style-y2k .prose blockquote { position: relative; border: 1px solid var(--y2k-edge); border-left: 4px solid var(--y2k-title-2); border-radius: var(--y2k-r); background: var(--accent-soft); padding: 14px 18px 14px 22px; }
.style-y2k .prose :not(pre) > code { background: var(--accent-soft); border: 1px solid var(--y2k-edge); border-radius: 4px; padding: .08em .35em; font-size: .86em; }
.style-y2k .prose code, .style-y2k .prose pre { font-family: "Courier New", Courier, monospace; }
.style-y2k .prose pre { border: 1px solid var(--y2k-edge); background: #1f2533; color: #a8e6b8; border-radius: var(--y2k-r); }
.style-y2k .prose pre code { background: none; border: 0; padding: 0; }
.style-y2k .prose table { border-radius: var(--y2k-r); overflow: hidden; border: 1px solid var(--y2k-edge); }
.style-y2k .prose th { background: var(--y2k-btn); color: var(--y2k-ui); font-family: var(--font); font-size: .85em; }
.style-y2k .prose td, .style-y2k .prose th { border: 1px solid var(--line); }
.style-y2k .prose tr:nth-child(even) td { background: color-mix(in srgb, var(--bg-soft) 70%, transparent); }
.style-y2k .video { border-radius: var(--y2k-r); border: 1px solid var(--y2k-edge); }

/* ---------- Índice (tabla de contenido) ---------- */
.toc-num { flex: none; min-width: 1.9em; font-variant-numeric: tabular-nums; }
.style-y2k .toc { margin-bottom: 26px; }
.style-y2k .toc details { position: static; max-height: none; background: var(--bg-card); border: 1px solid var(--y2k-edge); border-radius: var(--y2k-r); padding: 0; overflow: hidden; box-shadow: var(--y2k-shadow); }
.style-y2k .toc summary {
  display: flex; align-items: center; gap: 10px; margin: 0; padding: 9px 14px; cursor: pointer; list-style: none; user-select: none;
  color: #fff; font: 700 13px/1.2 var(--font); text-transform: none; letter-spacing: 0;
  background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 70%, var(--y2k-title-3));
}
.style-y2k .toc summary::-webkit-details-marker { display: none; }
.style-y2k .toc summary::before { content: ""; width: 0; height: 0; border-style: solid; border-width: 5px 0 5px 7px; border-color: transparent transparent transparent currentColor; transition: transform .15s; }
.style-y2k .toc details[open] summary::before { transform: rotate(90deg); }
.style-y2k .toc-count { margin-left: auto; font-weight: 400; font-size: 11.5px; opacity: .9; }
.style-y2k .toc-list { list-style: none; margin: 0; padding: 8px; border: 0; counter-reset: none; }
.style-y2k .toc details .toc-list { columns: 2 260px; column-gap: 18px; }
.style-y2k .toc-list li { break-inside: avoid; }
.style-y2k .toc-list a {
  display: flex; gap: 6px; align-items: baseline; padding: 5px 8px; margin: 0; border: 0; border-radius: calc(var(--y2k-r) - 2px);
  color: var(--y2k-link); text-decoration: none; font: 13.5px/1.4 var(--font); transition: background .12s, color .12s;
}
.style-y2k .toc-list a:hover { background: var(--accent-soft); color: var(--y2k-link); }
.style-y2k .toc-list a:hover .toc-text { text-decoration: underline; }
.style-y2k .toc-list .toc-num { color: var(--ink-3); font-size: 12px; }
.style-y2k .toc-list .toc-l3 a { padding-left: 22px; font-size: 13px; }
.style-y2k .toc-list a.active { background: var(--accent-soft); color: var(--y2k-head); font-weight: 700; box-shadow: inset 3px 0 0 var(--y2k-title-2); }
.style-y2k .toc-list a.active .toc-num { color: var(--y2k-title-2); }
/* En escritorio el índice vive en la barra lateral flotante. */
@media (min-width: 901px) { .style-y2k .toc.toc-has-side { display: none; } }
@media (max-width: 900px) { .style-y2k .y2k-toc { display: none; } }
.style-y2k .y2k-toc .y2k-box-title { display: flex; flex-direction: column; gap: 7px; }
.style-y2k .toc-progress { display: block; height: 4px; border-radius: 4px; background: rgba(255,255,255,.3); overflow: hidden; }
.style-y2k .toc-progress span { display: block; height: 100%; background: var(--y2k-yellow); transform: scaleX(0); transform-origin: left; transition: transform .1s linear; }
.style-y2k .y2k-toc .toc-list { max-height: min(52vh, 460px); overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--y2k-edge-strong) transparent; padding: 6px; }
.style-y2k .y2k-toc .toc-list a { font-size: 13px; padding: 4px 6px; }
.style-y2k .y2k-side.has-toc .y2k-recent .y2k-list li { font-size: 13px; }

.style-y2k .tags a { border-radius: 999px; font: 12px var(--font); background: var(--y2k-btn); border: 1px solid var(--y2k-edge); color: var(--y2k-ui); text-decoration: none; }
.style-y2k .share a, .style-y2k .share .linklike { border-radius: var(--y2k-r); font: 700 12px var(--font); background: var(--y2k-btn); border: 1px solid var(--y2k-edge); color: var(--y2k-ui); text-decoration: none; padding: 5px 10px; }
.style-y2k .share a:hover, .style-y2k .share .linklike:hover { background: var(--y2k-btn-hover); border-color: var(--y2k-edge-strong); }
.style-y2k .share { border-color: var(--line); border-style: solid; }
.style-y2k .author-box { border-radius: var(--y2k-r); background: var(--bg-soft); border: 1px solid var(--y2k-edge); box-shadow: var(--y2k-shadow); }

/* Comentarios estilo foro */
.style-y2k .comment article { border: 1px solid var(--line); background: var(--bg-soft); padding: 10px 12px; margin: 10px 0; border-bottom: 1px solid var(--line); }
.style-y2k .comment-list .children { border-left: 2px dotted var(--y2k-title-2); }
.style-y2k .comment-form { border-radius: var(--y2k-r); border: 1px solid var(--y2k-edge); background: var(--y2k-silver-2); }
.style-y2k.scheme-dark .comment-form { background: var(--bg-soft); }

/* Avisos, promos, productos */
.style-y2k .notice { border-radius: var(--y2k-r); border: 1px solid #e6d58f; background: #fff9e3; color: #333; }
.style-y2k .promo, .style-y2k .product-inline, .style-y2k .product-card, .style-y2k .buy-box { border-radius: var(--y2k-r); box-shadow: var(--y2k-shadow); }
.style-y2k .promo { background: #fff9e3; border: 1px dashed var(--y2k-red); }
.style-y2k .promo .promo-kicker { color: var(--y2k-red); }
.style-y2k .promo .promo-kicker::before { content: "¡NUEVO! "; }
.style-y2k .breadcrumbs { font: 12px var(--font); }
.style-y2k .archive-header { padding: 6px 0 16px; }

/* ---------- Barra lateral ---------- */
.style-y2k .y2k-side { display: grid; gap: 16px; font-size: 14px; position: sticky; top: calc(var(--y2k-head-h) + 20px); max-height: calc(100vh - var(--y2k-head-h) - 40px); overflow-y: auto; overscroll-behavior: contain; padding: 2px 4px 8px; margin: -2px -4px 0; }
@media (max-width: 900px) { .style-y2k .y2k-side { position: static; max-height: none; overflow: visible; } }
.y2k-box { background: var(--y2k-silver); border-radius: var(--y2k-r); overflow: hidden; box-shadow: var(--y2k-shadow); border: 1px solid var(--y2k-edge); }
.y2k-box-title { margin: 0; padding: 8px 12px; color: #fff !important; font: 700 13px/1.2 var(--font) !important;
  background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 70%, var(--y2k-title-3)); }
.y2k-box-body { margin: 8px; border-radius: calc(var(--y2k-r) - 2px); padding: 8px 10px; background: var(--bg-card); border: 1px solid var(--y2k-edge); }
.y2k-box-body p { margin: 0 0 6px; }
.y2k-list { list-style: none; }
.y2k-list li { padding: 3px 0 3px 14px; position: relative; line-height: 1.35; }
.y2k-list li::before { content: "»"; position: absolute; left: 0; color: var(--y2k-red); }
.y2k-count { color: var(--ink-3); }

/* ---------- Pie ---------- */
.style-y2k .site-footer { background: var(--y2k-silver); border: 1px solid var(--y2k-edge); border-radius: var(--y2k-r); box-shadow: var(--y2k-shadow); margin: 20px auto 24px; padding: 24px 0 16px; font-size: 14px; }
.style-y2k .site-footer .wrap { width: calc(100% - 32px); }
.style-y2k.scheme-dark .site-footer { background: var(--bg-soft); }
.style-y2k .footer-col h2, .style-y2k .footer-title { color: var(--y2k-head); font-family: var(--font-head); }
.style-y2k .footer-brand .brand-name::before { content: "✦ "; color: var(--y2k-title-2); }
.style-y2k .footer-col a, .style-y2k .footer-bottom a { color: var(--y2k-link); text-decoration: underline; }
.style-y2k .social-icons a { border-radius: var(--y2k-r); background: var(--y2k-silver-2); border: 1px solid var(--y2k-edge); }
.style-y2k .footer-bottom { border-top: 1px dashed var(--y2k-lo); }

/* ---------- Aviso de cookies como cuadro de diálogo de Windows ---------- */
.style-y2k .cc-banner, .style-y2k .cc-modal { border-radius: var(--y2k-r); overflow: hidden; background: var(--y2k-silver); color: var(--y2k-ui); padding: 0; border: 1px solid var(--y2k-edge); box-shadow: var(--y2k-shadow-lg); font: 13px/1.5 var(--font); }
.style-y2k .cc-banner .cc-title, .style-y2k .cc-modal .cc-title { margin: 0; padding: 6px 10px; color: #fff; font: 700 13px var(--font); background: linear-gradient(90deg, var(--y2k-title-1), var(--y2k-title-2) 70%, var(--y2k-title-3)); }
.style-y2k .cc-banner .cc-text, .style-y2k .cc-banner .cc-actions { padding: 0 14px; }
.style-y2k .cc-banner .cc-text { padding-top: 12px; color: var(--y2k-ui); }
.style-y2k .cc-banner .cc-actions { padding-bottom: 14px; }
.style-y2k .cc-modal-inner { padding: 0 0 14px; }
.style-y2k .cc-modal-inner > :not(.cc-title) { margin-left: 14px; margin-right: 14px; }
.style-y2k .cc-modal .cc-text { margin-top: 12px; color: var(--y2k-ui); }
.style-y2k .cc-cat { border-radius: var(--y2k-r); background: var(--y2k-field); border: 1px solid var(--y2k-edge); color: var(--y2k-ui); }
.style-y2k .cc-cat p { color: var(--y2k-ui); }
.style-y2k .cc-ghost { background: var(--y2k-silver-2); }
.style-y2k .cc-text a { color: #0033cc; }

/* Accesibilidad: foco bien visible (rectángulo punteado clásico) */
.style-y2k :focus-visible { outline: 2px dotted var(--y2k-title-1); outline-offset: 2px; border-radius: var(--y2k-r); }
.style-y2k.scheme-dark :focus-visible { outline-color: #fff; }
.style-y2k .promo, .style-y2k .promo p, .style-y2k .promo .promo-title { color: #1a1a1a; }
.style-y2k .notice { color: #1a1a1a; }
.style-y2k .brand, .style-y2k .brand:visited { color: #fff; text-decoration: none; }
.style-y2k .main-nav a, .style-y2k .btn, .style-y2k .chips a, .style-y2k .page-num, .style-y2k .page-link { text-decoration: none; }
.style-y2k .visit-count { font: 12px var(--font); color: var(--ink-3); }
.style-y2k .visit-count span { font-variant-numeric: tabular-nums; }

/* Detalles finales */
.style-y2k ::selection { background: color-mix(in srgb, var(--y2k-title-2) 30%, transparent); }
.style-y2k .section-title::before { content: "✦"; margin-right: 8px; color: var(--y2k-yellow); }
.style-y2k .breadcrumbs a { color: var(--y2k-link); }
.style-y2k .comment article { border-radius: var(--y2k-r); }
.style-y2k .page-num, .style-y2k .page-link { transition: background .15s, border-color .15s; }

/* Bloques de la barra lateral */
.style-y2k .y2k-cols.no-side { grid-template-columns: minmax(0, 1fr); }
.y2k-search { display: flex; gap: 6px; }
.y2k-search input { flex: 1; min-width: 0; padding: 6px 8px; border-radius: var(--y2k-r); border: 1px solid var(--y2k-edge); background: var(--y2k-field); color: var(--y2k-ui); font: 14px var(--font); }
.y2k-search .btn { padding: 6px 12px; }
.y2k-banner .y2k-box-body { padding: 6px; line-height: 0; }
.y2k-banner img { display: block; width: 100%; height: auto; border-radius: calc(var(--y2k-r) - 3px); }
.y2k-banner a { display: block; border-radius: calc(var(--y2k-r) - 3px); transition: opacity .15s, transform .15s; }
.y2k-banner a:hover { opacity: .92; }
.y2k-banner picture { display: block; }
.y2k-text { font-size: 14px; line-height: 1.6; }
.y2k-text p { margin: 0 0 8px; }
.y2k-text p:last-child { margin-bottom: 0; }
.y2k-html .y2k-box-body { overflow: hidden; }
.y2k-html img, .y2k-html iframe { max-width: 100%; height: auto; }