/* Artículo Gold de unidad — estilos scoped bajo .unidad-gold
   (se encola solo en is_singular('unidad'); ver inc/enqueue.php) */

.unidad-gold{
  --ink:#0B1B2B;--muted:#5B6675;--paper:#FFFFFF;--bg:#F8F8F4;--stone:#E5E7EB;
  --brand:#10B981;--brand-dark:#059669;--alzado:#10B981;--planta:#F59E0B;--perfil:#6366F1;--coral:#EF4444;
  /* full-bleed: rompe la restricción de ancho de single-unidad.html */
  width:100vw;max-width:100vw;margin-left:calc(50% - 50vw);
  background:var(--paper);color:var(--ink);
  font-family:'IBM Plex Sans',system-ui,sans-serif;line-height:1.7;font-size:1.0625rem;
}
.unidad-gold *{box-sizing:border-box}
.unidad-gold .wrap{max-width:1180px;margin:0 auto;padding:0 1.5rem}
.unidad-gold .mono{font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:500}
.unidad-gold h1,.unidad-gold h2,.unidad-gold h3{font-family:Spectral,Georgia,serif;line-height:1.15;color:var(--ink)}
.unidad-gold h1{font-size:clamp(2.2rem,5vw,3.4rem);font-weight:700;letter-spacing:-.02em;margin:.4rem 0 1rem}
.unidad-gold h2{font-size:1.9rem;font-weight:600;margin:3rem 0 1rem;scroll-margin-top:90px;padding-top:.6rem;border-top:1px solid var(--stone)}
.unidad-gold main section:first-child h2{border-top:0;padding-top:0;margin-top:.5rem}
.unidad-gold h3{font-size:1.22rem;font-weight:600;margin:1.8rem 0 .6rem}
.unidad-gold p{margin:0 0 1.1rem}
.unidad-gold a{color:var(--brand-dark)}
.unidad-gold ul,.unidad-gold ol{margin:0 0 1.1rem;padding-left:1.3rem}
.unidad-gold li{margin:.3rem 0}
.unidad-gold strong{font-weight:600}
/* Hero */
.unidad-gold .hero{padding:1.5rem 0 .5rem}
.unidad-gold .crumb{color:var(--perfil)}
.unidad-gold .lead{font-size:1.2rem;color:var(--muted);max-width:70ch}
.unidad-gold .hero-banner{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;background:linear-gradient(135deg,#ECFDF5,#F0FDFA);border:1px solid #A7F3D0;border-radius:14px;padding:1rem 1.25rem;margin:1.4rem 0 .5rem}
.unidad-gold .hero-banner p{margin:0;font-size:.97rem;color:#065F46;flex:1;min-width:240px}
.unidad-gold .hero-banner .btn-sm{white-space:nowrap}
.unidad-gold .btn-sm{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;font-size:.9rem;padding:.6rem 1.2rem;border-radius:9999px}
/* Layout 2 columnas */
.unidad-gold .layout{display:grid;grid-template-columns:250px 1fr;gap:3rem;align-items:start;margin-top:1.5rem}
.unidad-gold .sidebar{position:sticky;top:90px;align-self:start;display:flex;flex-direction:column;gap:1.25rem}
.unidad-gold .side-index .mono{color:var(--muted);display:block;margin:0 0 .6rem;padding-left:.85rem}
.unidad-gold .side-index a{display:block;color:var(--muted);text-decoration:none;font-size:.92rem;padding:.32rem .85rem;border-left:2px solid var(--stone);line-height:1.35}
.unidad-gold .side-index a:hover{color:var(--ink)}
.unidad-gold .side-index a.active{color:var(--ink);font-weight:600;border-left-color:var(--brand)}
.unidad-gold .side-cta{background:linear-gradient(135deg,#0F172A,#1F2937);border-radius:14px;padding:1.25rem;color:#fff}
.unidad-gold .side-cta .ico{font-size:1.4rem}
.unidad-gold .side-cta h3{color:#fff;font-size:1.1rem;margin:.3rem 0 .4rem}
.unidad-gold .side-cta p{color:rgba(255,255,255,.72);font-size:.85rem;line-height:1.5;margin:0 0 1rem}
.unidad-gold .side-cta a{display:block;text-align:center;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;font-size:.9rem;padding:.7rem;border-radius:10px}
/* Figuras */
.unidad-gold figure{margin:1.5rem 0}
.unidad-gold figure img{width:100%;border:1px solid var(--stone);border-radius:12px;background:#fff;display:block}
.unidad-gold figcaption{font-size:.9rem;color:var(--muted);text-align:center;margin-top:.5rem}
.unidad-gold .trivista{display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem}
.unidad-gold .trivista figure{margin:0;text-align:center}
.unidad-gold .trivista img{aspect-ratio:1;object-fit:contain}
.unidad-gold .vlabel{font-family:'JetBrains Mono',monospace;font-weight:700;font-size:.72rem;letter-spacing:.04em;display:block;margin-bottom:3px}
.unidad-gold .va{color:var(--alzado)}.unidad-gold .vp{color:var(--planta)}.unidad-gold .vf{color:var(--perfil)}
.unidad-gold .duo{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:center;margin:1.5rem 0}
.unidad-gold .duo img{width:100%;border:1px solid var(--stone);border-radius:12px;background:#fff}
/* Callout */
.unidad-gold .callout{background:var(--bg);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;padding:1rem 1.25rem;margin:1.5rem 0}
.unidad-gold .callout.amber{border-left-color:var(--planta)}
.unidad-gold .callout .mono{color:var(--brand-dark)}.unidad-gold .callout.amber .mono{color:#B45309}
/* Widgets */
.unidad-gold .widget{position:relative;margin:1.75rem 0;border:1px solid var(--stone);border-radius:16px;overflow:hidden;background:linear-gradient(135deg,#0F172A,#1F2937);scroll-margin-top:90px}
.unidad-gold .fs-btn{position:absolute;top:12px;right:12px;z-index:6;background:rgba(11,27,43,.85);color:#fff;border:none;border-radius:8px;padding:.5rem .9rem;font-family:inherit;font-weight:600;font-size:.85rem;cursor:pointer;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.unidad-gold .fs-btn:hover{background:#0B1B2B}
.unidad-gold .widget-facade{cursor:pointer;color:#fff;text-align:center;padding:3rem 1.5rem;transition:filter .15s}
.unidad-gold .widget-facade:hover{filter:brightness(1.12)}
.unidad-gold .widget-facade .play{display:inline-flex;width:78px;height:78px;border-radius:50%;background:var(--brand);align-items:center;justify-content:center;margin-bottom:1rem;box-shadow:0 6px 18px rgba(16,185,129,.45)}
.unidad-gold .widget-facade h3{color:#fff;margin:.2rem 0 .35rem;font-size:1.6rem}
.unidad-gold .widget-facade p{color:rgba(255,255,255,.78);font-size:1.02rem;margin:0}
.unidad-gold .widget iframe{display:block;width:100%;height:600px;border:0;background:#fff}
.unidad-gold .widget.tall iframe{height:clamp(620px,84vh,980px)}
/* Ejercicios */
.unidad-gold .ejercicio{border:1px solid var(--stone);border-radius:14px;padding:1.25rem 1.4rem;margin:1.75rem 0;background:#fff}
.unidad-gold .ejercicio .mono{color:var(--brand-dark)}
.unidad-gold .opciones{display:flex;flex-wrap:wrap;gap:.6rem;margin:.8rem 0 0}
.unidad-gold .opciones button{flex:1;min-width:110px;background:#fff;border:2px solid var(--ink);border-radius:10px;padding:.7rem;font:inherit;font-weight:500;cursor:pointer;transition:.15s}
.unidad-gold .opciones button:hover:not(:disabled){background:var(--ink);color:#fff}
.unidad-gold .opciones button.ok{background:var(--brand);border-color:var(--brand);color:#fff}
.unidad-gold .opciones button.no{background:var(--coral);border-color:var(--coral);color:#fff}
.unidad-gold .calc{display:flex;gap:.5rem;align-items:center;margin:.8rem 0 0;flex-wrap:wrap}
.unidad-gold .calc input{width:120px;padding:.55rem .7rem;border:2px solid var(--ink);border-radius:10px;font:inherit}
.unidad-gold .calc button{background:var(--ink);color:#fff;border:none;border-radius:10px;padding:.6rem 1.1rem;font:inherit;font-weight:600;cursor:pointer}
.unidad-gold .fb{margin-top:.8rem;font-size:.95rem;display:none}
.unidad-gold .fb.show{display:block}.unidad-gold .fb.bien{color:var(--brand-dark)}.unidad-gold .fb.mal{color:#B91C1C}
/* Botón comprobar (ordenar / huecos) */
.unidad-gold .ej-check{background:var(--ink);color:#fff;border:none;border-radius:10px;padding:.55rem 1.1rem;font:inherit;font-weight:600;cursor:pointer;margin-top:.5rem}
.unidad-gold .ej-check:disabled{opacity:.5;cursor:default}
/* Emparejar */
.unidad-gold .match-cols{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin:.8rem 0 0}
.unidad-gold .match-col{display:flex;flex-direction:column;gap:.5rem}
.unidad-gold .match-term,.unidad-gold .match-opt{background:#fff;border:2px solid var(--ink);border-radius:10px;padding:.6rem .7rem;font:inherit;font-weight:500;text-align:left;cursor:pointer;transition:.15s}
.unidad-gold .match-term:hover:not(.ok),.unidad-gold .match-opt:hover:not(.ok){background:var(--ink);color:#fff}
.unidad-gold .match-term.sel{background:var(--perfil);border-color:var(--perfil);color:#fff}
.unidad-gold .match-term.ok,.unidad-gold .match-opt.ok{background:var(--brand);border-color:var(--brand);color:#fff;cursor:default}
.unidad-gold .match-opt.err{background:var(--coral);border-color:var(--coral);color:#fff}
/* Ordenar */
.unidad-gold .order-list{display:flex;flex-direction:column;gap:.5rem;margin:.8rem 0 0}
.unidad-gold .order-item{display:flex;align-items:center;gap:.5rem;background:#fff;border:2px solid var(--ink);border-radius:10px;padding:.55rem .7rem;font-weight:500}
.unidad-gold .order-item span{flex:1}
.unidad-gold .order-item.ok{border-color:var(--brand);background:#ECFDF5}
.unidad-gold .order-item.no{border-color:var(--coral);background:#FEF2F2}
.unidad-gold .order-up,.unidad-gold .order-down{flex:0 0 auto;background:var(--bg);border:1px solid var(--stone);border-radius:7px;width:30px;height:30px;cursor:pointer;font-size:.78rem;line-height:1}
.unidad-gold .order-up:disabled,.unidad-gold .order-down:disabled{opacity:.4;cursor:default}
/* Huecos (cloze) */
.unidad-gold .hole{border:2px solid var(--ink);border-radius:8px;padding:.25rem .4rem;font:inherit;background:#fff;margin:0 .15rem}
.unidad-gold .hole.ok{border-color:var(--brand);background:#ECFDF5}
.unidad-gold .hole.no{border-color:var(--coral);background:#FEF2F2}
/* FAQ */
.unidad-gold details{border-bottom:1px solid var(--stone);padding:.9rem 0}
.unidad-gold details summary{cursor:pointer;font-weight:600;font-family:Spectral,serif;font-size:1.1rem;list-style:none}
.unidad-gold details summary::-webkit-details-marker{display:none}
.unidad-gold details summary::before{content:'+ ';color:var(--brand);font-weight:700}
.unidad-gold details[open] summary::before{content:'– '}
.unidad-gold details p{margin:.7rem 0 0;color:var(--muted)}
/* CTA final */
.unidad-gold .cta{background:linear-gradient(135deg,#0F172A,#1F2937);border-radius:16px;padding:2.5rem 2rem;text-align:center;color:#fff;margin:3rem 0}
.unidad-gold .cta h2{color:#fff;margin:0 0 .4rem;border:0;padding:0}
.unidad-gold .cta p{color:rgba(255,255,255,.75);margin:0 0 1.4rem}
.unidad-gold .btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;padding:.85rem 2rem;border-radius:9999px}
.unidad-gold .dim svg{width:100%;max-width:380px;display:block;margin:0 auto}
/* Responsive */
@media(max-width:900px){
  .unidad-gold .layout{grid-template-columns:1fr;gap:1.5rem}
  .unidad-gold .sidebar{position:static;flex-direction:column}
  .unidad-gold .side-index{display:flex;flex-wrap:wrap;gap:.25rem;border:1px solid var(--stone);border-radius:12px;padding:.5rem;background:var(--bg)}
  .unidad-gold .side-index .mono{width:100%}
  .unidad-gold .side-index a{border-left:0;padding:.3rem .6rem}
  .unidad-gold .duo,.unidad-gold .trivista{grid-template-columns:1fr}
}