/* ============================================================
   Los Altillos — Precio m² Steel Framing (Metalcon) Chile
   Archivo: assets/precio-steel-framing-chile.css
   Prefijo: sfcl-
   Depende de assets/main.css (variables de color, tipografías, reset).
   Escala propia en px: no depende de html{font-size:12px} (main.css)
   ni del :root{font-size:15px} móvil del bloque 26 de functions.php.
   Texto de lectura: 18px escritorio / 17px móvil. Nada por debajo de 14px.
   ============================================================ */

/* ============================================================
   0 · GLOBALES DE LA PÁGINA
   Header fijo de 64px: sin scroll-padding, los saltos del índice
   dejan el título tapado.
   ============================================================ */
html{scroll-padding-top:calc(var(--header-height) + 72px)}
@media (min-width:1080px){html{scroll-padding-top:calc(var(--header-height) + 24px)}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .sfcl *{animation:none!important;transition:none!important}
}

/* ============================================================
   1 · SCOPE Y ESQUELETO
   ============================================================ */
.sfcl{
  --sfcl-ink:var(--color-text);
  --sfcl-muted:var(--color-text-muted);
  --sfcl-subtle:var(--color-text-subtle);
  --sfcl-blue:var(--color-secondary);
  --sfcl-navy:var(--color-bg-dark);
  --sfcl-red:var(--color-accent);
  --sfcl-line:var(--color-border);
  --sfcl-ok-bg:#E8F6EE;  --sfcl-ok-ink:#14532D;
  --sfcl-no-bg:#FDECEE;  --sfcl-no-ink:#9F1239;
  --sfcl-mid-bg:#FEF3DC; --sfcl-mid-ink:#854D0E;
  background:var(--color-bg);
  color:var(--sfcl-ink);
  font-family:var(--font-body);
  font-size:18px;
  line-height:1.7;
  overflow-x:clip; /* clip, no hidden: no rompe position:sticky */
}
.sfcl img{width:100%;height:auto}
.sfcl a{transition:color var(--transition-fast),background var(--transition-fast),border-color var(--transition-fast)}
.sfcl a:focus-visible,.sfcl button:focus-visible,.sfcl input:focus-visible,.sfcl summary:focus-visible{outline:2px solid var(--sfcl-red);outline-offset:3px}

.sfcl-shell{max-width:1200px;margin-inline:auto;padding-inline:18px}
@media (min-width:768px){.sfcl-shell{padding-inline:32px}}

.sfcl-layout{display:grid;grid-template-columns:minmax(0,1fr)}
@media (min-width:1080px){
  .sfcl-layout{grid-template-columns:minmax(0,1fr) 280px;column-gap:56px;align-items:start}
}
.sfcl-main{min-width:0}
@media (max-width:1079px){.sfcl-main{width:100%;max-width:780px;margin-inline:auto}}

.sfcl-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* Secciones: el fondo alterno sangra a todo el ancho sin mover la reja */
.sfcl-section{position:relative;padding:72px 0}
.sfcl-section:first-child{padding-top:48px}
.sfcl-section--alt{isolation:isolate}
.sfcl-section--alt::before{content:"";position:absolute;z-index:-1;top:0;bottom:0;left:-100vw;right:-100vw;background:var(--color-bg-secondary)}
.sfcl-section[id],.sfcl-h3[id]{scroll-margin-top:calc(var(--header-height) + 72px)}
@media (min-width:1080px){.sfcl-section[id],.sfcl-h3[id]{scroll-margin-top:calc(var(--header-height) + 24px)}}

/* ============================================================
   2 · HERO — texto a la izquierda, etiqueta de precio a la derecha
   ============================================================ */
.sfcl-hero{position:relative;isolation:isolate;overflow:hidden;background:var(--sfcl-navy);color:#fff;padding:calc(var(--header-height) + 64px) 0 64px}
.sfcl .sfcl-hero__image{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;object-position:center}
.sfcl-hero .sfcl-ph{aspect-ratio:auto!important;border-radius:0;box-shadow:none;background:var(--color-bg-tertiary)}
.sfcl-hero .sfcl-ph span{position:absolute;right:24px;bottom:16px;border-color:rgba(255,255,255,.35);color:rgba(255,255,255,.7);background:rgba(0,0,0,.2)}
.sfcl-hero__overlay{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(1,20,48,.88) 0%,rgba(1,20,48,.66) 55%,rgba(1,20,48,.45) 100%)}
.sfcl-hero__grid{display:grid;gap:40px;align-items:end}
@media (min-width:1000px){.sfcl-hero__grid{grid-template-columns:minmax(0,1fr) 360px;gap:56px}}
.sfcl-hero__text{min-width:0}

.sfcl-breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-bottom:24px;font-size:15px;line-height:1.5;color:rgba(255,255,255,.72)}
.sfcl-breadcrumbs a{color:rgba(255,255,255,.82);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,255,255,.35)}
.sfcl-breadcrumbs a:hover{color:#fff;text-decoration-color:#fff}
.sfcl-breadcrumbs [aria-current="page"]{color:#fff;font-weight:600}

.sfcl-hero__title{max-width:22ch;font-family:var(--font-display);font-weight:400;font-size:clamp(32px,4.6vw,54px);line-height:1.08;letter-spacing:-.02em;color:#fff;text-wrap:balance}
.sfcl-hero__sub{max-width:58ch;margin-top:20px;font-size:19px;line-height:1.6;color:rgba(255,255,255,.86)}

.sfcl-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:32px;max-width:680px;list-style:none;padding:0}
@media (min-width:720px){.sfcl-meta{grid-template-columns:repeat(4,minmax(0,1fr))}}
.sfcl-meta li{padding:10px 12px;border-top:2px solid rgba(255,255,255,.28);font-size:15px;line-height:1.4;color:#fff}
.sfcl-meta li > span:first-child{display:block;margin-bottom:2px;font-size:14px;color:rgba(255,255,255,.62)}

/* La etiqueta de precio: el elemento memorable de la página.
   Cuerpo blanco, ojal arriba, y la letra chica como talón perforado. */
.sfcl-tag{position:relative;padding:36px 28px 24px;background:#fff;color:var(--sfcl-ink);border-radius:16px;border:1px solid var(--sfcl-line);box-shadow:0 8px 24px rgba(29,32,37,.12)}
.sfcl-tag::before{content:"";position:absolute;top:14px;left:50%;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:var(--color-bg-secondary);box-shadow:inset 0 0 0 1px var(--sfcl-line)}
.sfcl-tag p{margin:0}
.sfcl-tag__label{font-size:15px;font-weight:600;color:var(--sfcl-muted)}
.sfcl-tag__figure{margin-top:4px!important;font-family:var(--font-display);font-size:60px;line-height:1;letter-spacing:-.03em;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-tag__figure small{font-family:var(--font-body);font-size:20px;font-weight:700;letter-spacing:0;color:var(--sfcl-ink)}
.sfcl-tag__clp{margin-top:10px!important;font-size:18px;font-weight:700;color:var(--sfcl-ink);font-variant-numeric:tabular-nums}
.sfcl-tag__date{margin-top:4px!important;font-size:14px;line-height:1.5;color:var(--sfcl-subtle)}
.sfcl-tag__date a{color:var(--sfcl-blue);text-decoration:underline;text-underline-offset:2px}
.sfcl-tag__fine{position:relative;margin:22px -28px 0;padding:20px 28px 4px;border-top:2px dashed var(--color-border-dark)}
.sfcl-tag__fine::before,.sfcl-tag__fine::after{content:"";position:absolute;top:-11px;width:20px;height:20px;border-radius:50%;background:var(--color-bg-secondary);box-shadow:inset 0 0 0 1px var(--sfcl-line)}
.sfcl-tag__fine::before{left:-10px}
.sfcl-tag__fine::after{right:-10px}
.sfcl-tag__fine p{font-size:15px;line-height:1.55;color:var(--sfcl-muted)}
.sfcl-tag__fine p+p{margin-top:8px}
.sfcl-tag__fine strong{color:var(--sfcl-ink)}
.sfcl-tag__cta{display:flex;align-items:center;justify-content:center;min-height:48px;margin-top:20px;padding:12px 18px;border-radius:var(--radius-sm);background:var(--sfcl-red);color:#fff;font-size:16px;font-weight:700;text-align:center}
.sfcl-tag__cta:hover{background:var(--color-accent-dark);color:#fff}

@media (max-width:767px){
  .sfcl-hero{padding:calc(var(--header-height) + 36px) 0 40px}
  .sfcl-hero__overlay{background:linear-gradient(180deg,rgba(1,20,48,.78) 0%,rgba(1,20,48,.9) 100%)}
  .sfcl-hero__sub{font-size:17px}
  .sfcl-tag{padding:32px 20px 20px}
  .sfcl-tag__fine{margin-inline:-20px;padding-inline:20px}
  .sfcl-tag__figure{font-size:52px}
}

/* ============================================================
   3 · TIPOGRAFÍA
   ============================================================ */
.sfcl-prose{max-width:68ch;font-size:18px;line-height:1.75;color:var(--sfcl-muted)}
.sfcl-prose p{margin:0 0 18px}
.sfcl-prose p:last-child{margin-bottom:0}
.sfcl-prose a,.sfcl-callout a,.sfcl-card a,.sfcl-table a,.sfcl-sources a,.sfcl-byline a{color:var(--sfcl-red);text-decoration:underline;text-underline-offset:3px}
.sfcl-prose a:hover,.sfcl-table a:hover,.sfcl-sources a:hover{text-decoration:none}
.sfcl-prose strong{color:var(--sfcl-ink);font-weight:700}
.sfcl-prose + .sfcl-prose{margin-top:18px}

.sfcl-h2{max-width:24ch;margin:0 0 20px;font-family:var(--font-display);font-weight:400;font-size:clamp(28px,3.4vw,40px);line-height:1.14;letter-spacing:-.02em;color:var(--sfcl-ink);text-wrap:balance}
.sfcl-h2--small{font-size:clamp(24px,2.6vw,30px)}
.sfcl-h3{margin:44px 0 12px;font-family:var(--font-body);font-size:23px;line-height:1.3;font-weight:700;color:var(--sfcl-ink);text-wrap:balance}

/* ============================================================
   4 · RESPUESTA CORTA
   ============================================================ */
.sfcl-answer{position:relative;margin:28px 0;padding:26px 26px 24px 30px;background:#fff;border:1px solid var(--sfcl-line);border-left:5px solid var(--sfcl-red);border-radius:0 14px 14px 0;box-shadow:var(--shadow-md)}
.sfcl-answer p{margin:0;font-size:18px;line-height:1.7;color:var(--sfcl-muted)}
.sfcl-answer p+p{margin-top:12px}
.sfcl-answer strong{color:var(--sfcl-ink)}
.sfcl-answer .sfcl-answer__label{margin-bottom:8px;font-size:15px;font-weight:700;color:var(--sfcl-red)}
@media (max-width:767px){.sfcl-answer{padding:20px 18px 20px 20px}}

/* ============================================================
   5 · BANDAS — los cinco precios en la misma escala
   ============================================================ */
.sfcl-bands{margin:32px 0;padding:24px;background:#fff;border:1px solid var(--sfcl-line);border-radius:14px;box-shadow:var(--shadow-sm)}
.sfcl-bands__head{display:block;margin-bottom:22px}
.sfcl-bands__title{display:block;font-size:18px;font-weight:700;color:var(--sfcl-ink)}
.sfcl-bands__note{display:block;margin-top:4px;font-size:15px;line-height:1.55;color:var(--sfcl-subtle)}
.sfcl-band{margin-bottom:18px}
.sfcl-band__row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:2px 12px;margin-bottom:6px}
.sfcl-band__name{font-size:16px;font-weight:600;color:var(--sfcl-ink)}
.sfcl-band__value{font-size:16px;font-weight:700;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-band__value em{font-style:normal;font-weight:500;color:var(--sfcl-subtle)}
.sfcl-band__track{position:relative;height:22px;border-radius:4px;background-color:var(--color-bg-tertiary);background-image:repeating-linear-gradient(90deg,rgba(15,23,42,.14) 0 1px,transparent 1px 25%)}
.sfcl-band__fill{position:absolute;top:0;bottom:0;min-width:4px;border-radius:4px;background:var(--color-steel-dark)}
.sfcl-band--alcance .sfcl-band__fill{background:var(--color-secondary-light)}
.sfcl-band--destacado .sfcl-band__fill{background:var(--sfcl-red)}
.sfcl-band--destacado .sfcl-band__name,.sfcl-band--destacado .sfcl-band__value{color:var(--sfcl-red)}
.sfcl-band--otro .sfcl-band__fill{background:var(--sfcl-navy)}
.sfcl-band__fill--open{background:linear-gradient(90deg,var(--color-steel-dark) 0%,rgba(154,163,178,0) 100%)!important}
.sfcl-bands__axis{position:relative;height:26px;margin-top:4px;border-top:1px solid var(--color-border-dark)}
.sfcl-bands__axis span{position:absolute;top:6px;transform:translateX(-50%);font-size:14px;color:var(--sfcl-subtle);white-space:nowrap;font-variant-numeric:tabular-nums}
.sfcl-bands__axis span:first-child{transform:none}
.sfcl-bands__axis span:last-child{transform:translateX(-100%)}
@media (max-width:767px){
  .sfcl-bands{padding:18px 16px}
  .sfcl-band__row{flex-direction:column;align-items:flex-start}
  .sfcl-bands__axis span:nth-child(2),.sfcl-bands__axis span:nth-child(4){display:none}
}

/* ============================================================
   6 · TABLAS
   ============================================================ */
.sfcl-table-wrap{width:100%;overflow-x:auto;margin:24px 0;border:1px solid var(--sfcl-line);border-radius:12px;background:#fff;box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch}
.sfcl-table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.5;color:var(--sfcl-muted)}
.sfcl-table caption{caption-side:bottom;padding:12px 16px;text-align:left;font-size:15px;line-height:1.55;color:var(--sfcl-subtle);border-top:1px solid var(--sfcl-line)}
.sfcl-table th,.sfcl-table td{padding:12px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--sfcl-line)}
.sfcl-table thead th{background:var(--color-bg-secondary);font-weight:700;color:var(--sfcl-ink);border-bottom:2px solid var(--sfcl-line)}
.sfcl-table tbody th[scope="row"]{font-weight:600;color:var(--sfcl-ink);background:#fff}
.sfcl-table tbody tr:last-child th,.sfcl-table tbody tr:last-child td{border-bottom:0}
.sfcl-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.sfcl-table thead .num{text-align:right}
.sfcl-table strong{color:var(--sfcl-ink)}
.sfcl-table tr.is-key th,.sfcl-table tr.is-key td{background:rgba(199,8,29,.045)}
.sfcl-table tr.is-key strong{color:var(--sfcl-red)}
.sfcl-table-wrap:has(.sfcl-table--tight),.sfcl-case .sfcl-table-wrap{max-width:600px}

/* En móvil las tablas de texto se apilan en fichas: nada que deslizar */
@media (max-width:639px){
  .sfcl-table--stack thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .sfcl-table--stack{display:flex!important;flex-direction:column}
  .sfcl-table--stack caption{display:block;order:2;width:100%}
  .sfcl-table--stack tbody,.sfcl-table--stack tr,.sfcl-table--stack th,.sfcl-table--stack td{display:block;width:100%}
  .sfcl-table--stack tr{padding:12px 16px;border-bottom:1px solid var(--sfcl-line)}
  .sfcl-table--stack tbody tr:last-child{border-bottom:0}
  .sfcl-table--stack th,.sfcl-table--stack td{padding:2px 0;border:0;text-align:left}
  .sfcl-table--stack .num{text-align:left;white-space:normal}
  .sfcl-table--stack tbody th[scope="row"]{background:transparent;font-size:17px;margin-bottom:4px}
  .sfcl-table--stack td[data-label]::before{content:attr(data-label) ": ";font-weight:600;color:var(--sfcl-subtle)}
  .sfcl-table--stack tr.is-key{background:rgba(199,8,29,.045)}
  .sfcl-table--stack tr.is-key th,.sfcl-table--stack tr.is-key td{background:transparent}
}

/* Planilla A/B/C: se desliza con la primera columna fija */
.sfcl-abc{min-width:560px}
.sfcl-abc thead th:not(:first-child),.sfcl-abc td{text-align:center}
.sfcl-abc tbody th[scope="row"],.sfcl-abc thead th:first-child,.sfcl-abc tfoot th{position:sticky;left:0;z-index:1;box-shadow:1px 0 0 var(--sfcl-line)}
.sfcl-abc thead th:first-child{background:var(--color-bg-secondary)}
.sfcl-abc tfoot th,.sfcl-abc tfoot td{background:var(--color-bg-secondary);border-top:2px solid var(--sfcl-line);border-bottom:0;font-size:15px;color:var(--sfcl-ink)}
.sfcl-badge{display:inline-block;min-width:92px;padding:4px 10px;border-radius:100px;font-size:14px;font-weight:700;line-height:1.35;white-space:nowrap}
.sfcl-badge--si{background:var(--sfcl-ok-bg);color:var(--sfcl-ok-ink)}
.sfcl-badge--no{background:var(--sfcl-no-bg);color:var(--sfcl-no-ink)}
.sfcl-badge--parcial{background:var(--sfcl-mid-bg);color:var(--sfcl-mid-ink)}
.sfcl-badge--si::before{content:"✓ "}
.sfcl-badge--no::before{content:"✕ "}
.sfcl-badge--parcial::before{content:"◐ "}
@media (max-width:639px){
  .sfcl-abc{min-width:520px;font-size:15px}
  .sfcl-abc th,.sfcl-abc td{padding:10px 8px}
  .sfcl-badge{min-width:0;padding:4px 8px}
}

/* ============================================================
   7 · FIGURAS Y MARCADORES DE IMAGEN
   ============================================================ */
.sfcl-figure{margin:32px 0}
.sfcl-figure img{display:block;aspect-ratio:16/9;object-fit:cover;border-radius:14px}
.sfcl-figure figcaption{margin-top:10px;font-size:15px;line-height:1.55;color:var(--sfcl-subtle)}
.sfcl-ph{position:relative;display:grid;place-items:center;width:100%;padding:16px;border-radius:14px;background:linear-gradient(135deg,var(--color-steel-light) 0%,var(--color-steel) 100%);text-align:center}
.sfcl-ph span{max-width:44ch;padding:10px 14px;border:1px dashed var(--color-steel-dark);border-radius:8px;font-size:14px;line-height:1.5;color:var(--color-secondary-dark)}
.sfcl-ph code{font-size:14px;word-break:break-all}

/* ============================================================
   8 · CALLOUTS, CITAS, REENCUADRES
   ============================================================ */
.sfcl-callout{max-width:68ch;margin:24px 0;padding:16px 20px;background:rgba(29,32,37,.05);border-left:4px solid var(--sfcl-blue);border-radius:0 10px 10px 0;font-size:18px;line-height:1.65;font-weight:600;color:var(--sfcl-ink)}
.sfcl-callout--warning{background:rgba(199,8,29,.06);border-left-color:var(--sfcl-red)}
.sfcl-callout--quote{font-size:20px;border-left-color:var(--sfcl-red)}
.sfcl-callout--final{padding:22px 24px;background:var(--sfcl-navy);border-left:4px solid var(--sfcl-red);border-radius:0 14px 14px 0;color:#fff;font-size:19px;box-shadow:var(--shadow-md)}

.sfcl-pull{max-width:68ch;margin:28px 0;padding:0 0 0 22px;border-left:4px solid var(--sfcl-red)}
.sfcl-pull p{font-family:var(--font-display);font-size:clamp(24px,3vw,32px);line-height:1.2;letter-spacing:-.01em;color:var(--sfcl-ink)}

.sfcl-reframe{display:grid;gap:10px;max-width:68ch;margin:24px 0}
.sfcl-reframe blockquote{margin:0;padding:16px 20px;border-radius:12px;font-size:18px;line-height:1.6}
.sfcl-reframe__before{background:var(--color-bg-tertiary);color:var(--sfcl-subtle)}
.sfcl-reframe__before p{text-decoration:line-through;text-decoration-color:rgba(199,8,29,.55);text-decoration-thickness:2px}
.sfcl-reframe__after{background:#fff;border:2px solid var(--sfcl-blue);color:var(--sfcl-ink);font-weight:600}
.sfcl-reframe__arrow{margin:4px 0 0;font-size:16px;font-weight:600;color:var(--sfcl-subtle)}
/* En normativa la primera pregunta no se tacha: sigue siendo válida */
#normativa .sfcl-reframe__before p{text-decoration:none}

/* UF → pesos */
.sfcl-conv{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px;max-width:68ch;margin:20px 0 24px}
.sfcl-conv__item{padding:16px 18px;background:#fff;border:1px solid var(--sfcl-line);border-radius:12px}
.sfcl-conv__item span{display:block}
.sfcl-conv__uf{font-family:var(--font-display);font-size:26px;line-height:1.1;color:var(--sfcl-blue)}
.sfcl-conv__eq{margin:6px 0 2px;font-size:15px;color:var(--sfcl-subtle)}
.sfcl-conv__item strong{font-size:22px;color:var(--sfcl-ink);font-variant-numeric:tabular-nums}

/* ============================================================
   9 · LISTAS
   ============================================================ */
.sfcl-list-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:8px;margin:20px 0 24px;padding:0;list-style:none}
.sfcl-list-cards li{position:relative;margin:0;padding:10px 14px 10px 34px;background:#fff;border:1px solid var(--sfcl-line);border-radius:10px;font-size:16px;line-height:1.5;color:var(--sfcl-muted)}
.sfcl-list-cards li::before{content:"";position:absolute;left:14px;top:18px;width:8px;height:8px;border-radius:50%;background:var(--sfcl-blue)}
.sfcl-list-cards--warning li{background:#FFF8F8;border-color:rgba(199,8,29,.2)}
.sfcl-list-cards--warning li::before{background:var(--sfcl-red)}

.sfcl-chips{display:flex;flex-wrap:wrap;gap:8px;max-width:72ch;margin:16px 0 24px;padding:0;list-style:none}
.sfcl-chips li{margin:0;padding:6px 14px;border:1px solid var(--color-border-dark);border-radius:100px;background:#fff;font-size:16px;line-height:1.45;color:var(--sfcl-muted)}

.sfcl-questions{margin:16px 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.sfcl-questions li{margin:0;padding:6px 12px;border-radius:8px;background:var(--color-bg-tertiary);font-size:16px;font-weight:600;color:var(--sfcl-ink)}
.sfcl-questions--grid{max-width:68ch}

/* ============================================================
   10 · CASO 90 M² Y PILA BASE → TOTAL
   ============================================================ */
.sfcl-case{margin:8px 0 24px}
.sfcl-case .sfcl-table-wrap{margin:16px 0}
.sfcl-case .sfcl-prose{margin-top:8px}

.sfcl-stack{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;gap:12px;max-width:720px;margin:28px 0}
.sfcl-stack__col{padding:18px 20px;border-radius:12px;background:#fff;border:1px solid var(--sfcl-line);box-shadow:var(--shadow-sm)}
.sfcl-stack__col span{display:block;font-size:15px;color:var(--sfcl-subtle)}
.sfcl-stack__col .sfcl-stack__label{margin-bottom:6px;font-weight:600;color:var(--sfcl-muted)}
.sfcl-stack__col strong{display:block;font-family:var(--font-display);font-weight:400;font-size:26px;line-height:1.15;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-stack__col--total{background:var(--sfcl-navy);border-color:var(--sfcl-navy)}
.sfcl-stack__col--total span,.sfcl-stack__col--total .sfcl-stack__label{color:rgba(255,255,255,.75)}
.sfcl-stack__col--total strong{color:#fff}
.sfcl-stack__plus{align-self:center;padding:6px 10px;border-radius:100px;background:var(--sfcl-red);color:#fff;font-size:15px;font-weight:700;white-space:nowrap}
@media (max-width:639px){
  .sfcl-stack{grid-template-columns:1fr}
  .sfcl-stack__plus{justify-self:start}
}

/* ============================================================
   11 · CALCULADORA
   ============================================================ */
.sfcl-calc{margin-top:24px;padding:24px;background:#fff;border:1px solid var(--sfcl-line);border-radius:16px;box-shadow:var(--shadow-md)}
.sfcl-calc__presets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.sfcl-chip-btn{min-height:44px;padding:8px 16px;border:1px solid var(--color-border-dark);border-radius:100px;background:#fff;color:var(--sfcl-muted);font-size:15px;font-weight:600;cursor:pointer;text-align:left}
.sfcl-chip-btn:hover{border-color:var(--sfcl-blue);color:var(--sfcl-blue)}
.sfcl-chip-btn.is-active{background:var(--sfcl-blue);border-color:var(--sfcl-blue);color:#fff}
.sfcl-calc__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 12px;padding-bottom:22px;margin-bottom:22px;border-bottom:1px solid var(--sfcl-line)}
.sfcl-field{display:flex;flex-direction:column;gap:6px;min-width:0}
.sfcl-field__label{font-size:15px;font-weight:700;color:var(--sfcl-ink)}
.sfcl-field__box{display:flex;align-items:stretch;border:1px solid var(--color-border-dark);border-radius:8px;background:#fff;overflow:hidden}
.sfcl-field__box:focus-within{border-color:var(--sfcl-blue);box-shadow:0 0 0 3px rgba(29,32,37,.15)}
.sfcl-field__box input{flex:1;min-width:0;width:100%;min-height:48px;padding:10px 12px;border:0;outline:none;background:transparent;color:var(--sfcl-ink);font-size:18px;font-weight:600;font-variant-numeric:tabular-nums}
.sfcl-field__unit{display:inline-flex;align-items:center;padding:0 12px;background:var(--color-bg-secondary);border-left:1px solid var(--sfcl-line);color:var(--sfcl-subtle);font-size:15px;font-weight:600}
.sfcl-field__unit--pre{border-left:0;border-right:1px solid var(--sfcl-line)}
.sfcl-field__help{font-size:14px;line-height:1.45;color:var(--sfcl-subtle)}
/* Móvil: superficie y UF a lo ancho; mínimos y máximos en pareja.
   Desde 640px: tres columnas (superficie · mín · máx / UF · adicional mín · máx). */
.sfcl-field--wide{grid-column:1/-1}
@media (min-width:640px){
  .sfcl-calc__grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .sfcl-field--wide{grid-column:auto}
}
.sfcl-field input[aria-invalid="true"]{color:var(--sfcl-red)}

.sfcl-calc__results{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px}
.sfcl-calc__out{padding:18px 20px;border-radius:12px;background:var(--color-bg-secondary);border:1px solid var(--sfcl-line)}
.sfcl-calc__out--total{background:var(--sfcl-navy);border-color:var(--sfcl-navy);color:#fff}
.sfcl-calc__k{display:block;margin-bottom:6px;font-size:15px;font-weight:700;color:var(--sfcl-muted)}
.sfcl-calc__out--total .sfcl-calc__k{color:rgba(255,255,255,.75)}
.sfcl-calc__out strong{display:block;font-family:var(--font-display);font-weight:400;font-size:clamp(24px,3vw,30px);line-height:1.12;letter-spacing:-.01em;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-calc__out--total strong{color:#fff}
.sfcl-calc__out em{display:block;margin-top:6px;font-style:normal;font-size:17px;font-weight:600;color:var(--sfcl-ink);font-variant-numeric:tabular-nums}
.sfcl-calc__out--total em{color:rgba(255,255,255,.88)}
.sfcl-calc__error{margin-top:12px;padding:10px 14px;border-radius:8px;background:var(--sfcl-no-bg);color:var(--sfcl-no-ink);font-size:15px;font-weight:600}
.sfcl-calc__foot{margin-top:14px;font-size:15px;line-height:1.6;color:var(--sfcl-subtle)}
@media (max-width:639px){.sfcl-calc{padding:18px 16px}}

/* ============================================================
   12 · ESCALERA DE ALCANCES (estructura → llave en mano)
   ============================================================ */
.sfcl-scope{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:16px;margin:28px 0 0;padding:0;list-style:none}
.sfcl-scope__card{display:flex;flex-direction:column;padding:22px;background:#fff;border:1px solid var(--sfcl-line);border-radius:14px;box-shadow:var(--shadow-sm)}
.sfcl-scope__card p{margin:0 0 12px;font-size:17px;line-height:1.65;color:var(--sfcl-muted)}
.sfcl-scope__card .sfcl-h3{margin:0 0 12px;font-size:21px}
.sfcl-scope__top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px}
.sfcl-scope__meter{display:inline-flex;gap:4px}
.sfcl-scope__meter i{display:block;width:22px;height:8px;border-radius:2px;background:var(--color-bg-tertiary)}
.sfcl-scope__card[data-lvl="1"] .sfcl-scope__meter i:nth-child(-n+1),
.sfcl-scope__card[data-lvl="2"] .sfcl-scope__meter i:nth-child(-n+2),
.sfcl-scope__card[data-lvl="3"] .sfcl-scope__meter i:nth-child(-n+3),
.sfcl-scope__card[data-lvl="4"] .sfcl-scope__meter i{background:var(--sfcl-blue)}
.sfcl-scope__fig{font-size:15px;font-weight:700;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-scope__card .sfcl-scope__punch{margin-top:auto;margin-bottom:0;padding-top:12px;border-top:1px solid var(--sfcl-line);font-weight:700;color:var(--sfcl-ink)}
.sfcl-scope__card--key{border:2px solid var(--sfcl-red)}
.sfcl-scope__card--key .sfcl-scope__meter i{background:var(--sfcl-red)!important}
.sfcl-scope__card--key .sfcl-scope__fig{color:var(--sfcl-red)}
.sfcl-scope .sfcl-questions{margin:4px 0 14px}
.sfcl-scope .sfcl-questions li{font-size:15px}

/* ============================================================
   13 · TARJETAS
   ============================================================ */
.sfcl-cards-grid{display:grid;gap:16px;margin-top:24px}
.sfcl-cards-grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.sfcl-card{padding:22px;background:#fff;border:1px solid var(--sfcl-line);border-radius:14px;box-shadow:var(--shadow-sm)}
.sfcl-card--wide{grid-column:1/-1}
.sfcl-card p{margin:0 0 12px;font-size:17px;line-height:1.65;color:var(--sfcl-muted)}
.sfcl-card p:last-child{margin-bottom:0}
.sfcl-card strong{color:var(--sfcl-ink)}
.sfcl-card .sfcl-h3{margin:0 0 12px;font-size:21px}
.sfcl-card .sfcl-card__tag{display:inline-block;margin-bottom:10px;padding:3px 10px;border-radius:100px;background:rgba(29,32,37,.08);color:var(--sfcl-blue);font-size:14px;font-weight:700}
.sfcl-card .sfcl-card__figure{margin-bottom:12px;font-family:var(--font-display);font-size:30px;line-height:1.1;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-card__figure small{font-family:var(--font-body);font-size:17px;font-weight:700}

/* ============================================================
   14 · METALCON VS ALBAÑILERÍA
   ============================================================ */
.sfcl-vs{max-width:720px;margin:24px 0;padding:20px 22px;background:#fff;border:1px solid var(--sfcl-line);border-radius:14px}
.sfcl-vs__row{display:grid;grid-template-columns:190px minmax(0,1fr) 110px;align-items:center;gap:12px;margin-bottom:12px}
.sfcl-vs__name{font-size:16px;font-weight:600;color:var(--sfcl-ink)}
.sfcl-vs__track{position:relative;height:20px;border-radius:4px;background-color:var(--color-bg-tertiary);background-image:repeating-linear-gradient(90deg,rgba(15,23,42,.14) 0 1px,transparent 1px 33.333%)}
.sfcl-vs__fill{position:absolute;top:0;bottom:0;border-radius:4px;background:var(--sfcl-red)}
.sfcl-vs__row--alt .sfcl-vs__fill{background:var(--sfcl-navy)}
.sfcl-vs__val{font-size:16px;font-weight:700;color:var(--sfcl-ink);text-align:right;font-variant-numeric:tabular-nums}
.sfcl-vs__axis{display:flex;justify-content:space-between;margin-left:202px;margin-right:122px;font-size:14px;color:var(--sfcl-subtle)}
@media (max-width:639px){
  .sfcl-vs{padding:16px}
  .sfcl-vs__row{grid-template-columns:1fr auto;gap:6px 10px}
  .sfcl-vs__track{grid-column:1/-1;grid-row:2}
  .sfcl-vs__axis{margin:0}
}

/* ============================================================
   15 · NORMATIVA Y FUENTES
   ============================================================ */
.sfcl-norm{display:grid;gap:20px;align-items:start;margin:20px 0}
@media (min-width:760px){.sfcl-norm{grid-template-columns:230px minmax(0,1fr)}}
.sfcl-norm__stat{padding:20px;border-radius:14px;background:var(--sfcl-navy);color:#fff}
.sfcl-norm__stat span{display:block}
.sfcl-norm__k{font-size:15px;line-height:1.4;color:rgba(255,255,255,.75)}
.sfcl-norm__v{margin-top:6px;font-family:var(--font-display);font-size:40px;line-height:1;color:#fff}
.sfcl-norm__v small{font-family:var(--font-body);font-size:16px;font-weight:700}
.sfcl-norm__was{margin-top:10px;font-size:15px;color:rgba(255,255,255,.75);text-decoration:line-through;text-decoration-color:var(--color-accent-light)}

.sfcl-sources{max-width:72ch;margin-top:32px;padding:20px 22px;background:#fff;border:1px solid var(--sfcl-line);border-left:4px solid var(--sfcl-blue);border-radius:0 12px 12px 0}
.sfcl-sources__title{margin:0 0 10px;font-size:17px;font-weight:700;color:var(--sfcl-ink)}
.sfcl-sources ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}
.sfcl-sources li{font-size:16px;line-height:1.5}
.sfcl-sources li a{font-weight:600}
.sfcl-sources li span{display:block;margin-top:2px;font-size:15px;color:var(--sfcl-subtle)}

/* Nombres */
.sfcl-terms{display:grid;gap:12px;max-width:68ch;margin:24px 0}
.sfcl-terms div{display:grid;gap:4px;padding:16px 18px;background:#fff;border:1px solid var(--sfcl-line);border-radius:12px}
@media (min-width:640px){.sfcl-terms div{grid-template-columns:150px minmax(0,1fr);gap:16px}}
.sfcl-terms dt{font-family:var(--font-display);font-size:19px;color:var(--sfcl-blue)}
.sfcl-terms dd{margin:0;font-size:17px;line-height:1.65;color:var(--sfcl-muted)}

/* ============================================================
   16 · CHECKLIST
   ============================================================ */
.sfcl-check{margin:24px 0;background:#fff;border:1px solid var(--sfcl-line);border-radius:16px;box-shadow:var(--shadow-sm)}
.sfcl-check__bar{position:sticky;top:var(--header-height);z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px 16px;padding:14px 20px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--sfcl-line);border-radius:16px 16px 0 0;backdrop-filter:blur(6px)}
.sfcl-check__count{margin:0;font-size:16px;color:var(--sfcl-muted)}
.sfcl-check__count strong{font-family:var(--font-display);font-weight:400;font-size:22px;color:var(--sfcl-blue);font-variant-numeric:tabular-nums}
.sfcl-check__progress{grid-column:1/-1;grid-row:2;height:6px;border-radius:100px;background:var(--color-bg-tertiary);overflow:hidden}
.sfcl-check__progress span{display:block;width:0;height:100%;background:var(--sfcl-blue);transition:width var(--transition-base)}
.sfcl-check.is-complete .sfcl-check__progress span{background:#15803D}
.sfcl-check__reset{min-height:44px;padding:8px 14px;border:1px solid var(--color-border-dark);border-radius:8px;background:#fff;color:var(--sfcl-muted);font-size:15px;font-weight:600;cursor:pointer}
.sfcl-check__reset:hover{border-color:var(--sfcl-red);color:var(--sfcl-red)}
.sfcl-check__groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:4px 28px;padding:18px 20px 6px}
.sfcl-check__group{min-width:0;margin:0 0 16px;padding:0;border:0}
.sfcl-check__group legend{margin-bottom:6px;padding:0;font-size:15px;font-weight:700;color:var(--sfcl-red)}
.sfcl-check__group ul{margin:0;padding:0;list-style:none}
.sfcl-check__group li{margin:0;border-bottom:1px solid var(--sfcl-line)}
.sfcl-check__group li:last-child{border-bottom:0}
.sfcl-check__group label{display:flex;align-items:flex-start;gap:12px;min-height:44px;padding:10px 0;cursor:pointer;font-size:16px;line-height:1.45;color:var(--sfcl-ink)}
.sfcl-check__group input{flex:none;width:22px;height:22px;margin-top:0;accent-color:var(--sfcl-blue);cursor:pointer}
.sfcl-check__group input:checked + span{color:var(--sfcl-subtle);text-decoration:line-through;text-decoration-color:rgba(29,32,37,.4)}
.sfcl-check__note{margin:0;padding:0 20px 16px;font-size:14px;color:var(--sfcl-subtle)}
@media (max-width:639px){
  .sfcl-check__bar{padding:12px 16px}
  .sfcl-check__groups{padding:14px 16px 4px}
  .sfcl-check__note{padding-inline:16px}
}

/* ============================================================
   17 · FAQ
   ============================================================ */
.sfcl-faq{display:grid;gap:10px;margin-top:24px}
.sfcl-faq__item{background:#fff;border:1px solid var(--sfcl-line);border-radius:12px;overflow:hidden}
.sfcl-faq__item[open]{border-color:var(--color-border-dark);box-shadow:var(--shadow-sm)}
.sfcl-faq__item summary{position:relative;display:block;min-height:48px;padding:16px 56px 16px 20px;cursor:pointer;list-style:none}
.sfcl-faq__item summary::-webkit-details-marker{display:none}
.sfcl-faq__item summary::after{content:"+";position:absolute;top:50%;right:18px;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--color-bg-secondary);color:var(--sfcl-blue);font-size:20px;font-weight:700;line-height:1;transform:translateY(-50%)}
.sfcl-faq__item[open] summary::after{content:"–";background:var(--sfcl-red);color:#fff}
.sfcl-faq__q{margin:0;font-family:var(--font-body);font-size:18px;line-height:1.4;font-weight:700;color:var(--sfcl-ink)}
.sfcl-faq__a{padding:0 20px 18px;font-size:17px;line-height:1.7;color:var(--sfcl-muted)}
.sfcl-faq__a p{margin:0 0 10px}
.sfcl-faq__a p:last-child{margin:0}
.sfcl-faq__a strong{color:var(--sfcl-ink)}

/* ============================================================
   18 · CONCLUSIÓN: la escalera y los tres pasos
   ============================================================ */
.sfcl-stairs{display:grid;gap:6px;max-width:640px;margin:24px 0 28px;padding:0;list-style:none;counter-reset:st}
.sfcl-stairs li{counter-increment:st;margin:0}
.sfcl-stairs li span{display:block;padding:10px 16px;border-radius:8px;background:var(--color-bg-tertiary);font-size:17px;font-weight:600;color:var(--sfcl-ink)}
.sfcl-stairs li:nth-child(1) span{width:60%}
.sfcl-stairs li:nth-child(2) span{width:70%}
.sfcl-stairs li:nth-child(3) span{width:80%}
.sfcl-stairs li:nth-child(4) span{width:90%;background:rgba(29,32,37,.12)}
.sfcl-stairs li:nth-child(5) span{width:100%;background:var(--sfcl-navy);color:#fff}
@media (max-width:639px){.sfcl-stairs li span{width:100%!important}}

.sfcl-steps{display:grid;gap:10px;max-width:68ch;margin:18px 0 24px;padding:0;list-style:none;counter-reset:sp}
.sfcl-steps li{counter-increment:sp;position:relative;margin:0;padding:14px 16px 14px 60px;background:#fff;border:1px solid var(--sfcl-line);border-radius:12px;font-size:18px;font-weight:600;color:var(--sfcl-ink)}
.sfcl-steps li::before{content:counter(sp);position:absolute;left:16px;top:50%;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--sfcl-red);color:#fff;font-family:var(--font-display);font-size:16px;transform:translateY(-50%)}

/* CTA */
.sfcl-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.sfcl-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:var(--radius-sm);background:var(--sfcl-red);color:#fff;font-size:16px;font-weight:700;text-align:center;box-shadow:var(--shadow-md)}
.sfcl-btn:hover{background:var(--color-accent-dark);color:#fff}
.sfcl-btn--ghost{background:#fff;border:1px solid var(--color-border-dark);color:var(--sfcl-blue);box-shadow:none}
.sfcl-btn--ghost:hover{background:var(--color-bg-secondary);color:var(--sfcl-blue)}
@media (max-width:520px){.sfcl-cta{flex-direction:column;align-items:stretch}}

.sfcl-byline{margin-top:20px;font-size:15px;color:var(--sfcl-subtle)}
.sfcl-table--sources th[scope="row"] a{font-weight:600}

/* ============================================================
   19 · ÍNDICE (TOC)
   Móvil: bloque plegable arriba del contenido.
   Escritorio: columna derecha fija durante todo el scroll.
   ============================================================ */
.sfcl-aside{min-width:0}
@media (max-width:1079px){.sfcl-aside{order:-1;width:100%;max-width:780px;margin:24px auto 0}}
@media (min-width:1080px){
  .sfcl-main{grid-column:1;grid-row:1}
  .sfcl-aside{grid-column:2;grid-row:1;position:sticky;top:calc(var(--header-height) + 24px);padding-top:48px}
}
.sfcl-toc{background:#fff;border:1px solid var(--sfcl-line);border-radius:12px}
.sfcl-toc__summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:12px 16px;cursor:pointer;list-style:none;font-size:16px;font-weight:700;color:var(--sfcl-ink)}
.sfcl-toc__summary::-webkit-details-marker{display:none}
.sfcl-toc__summary::after{content:"";flex:none;width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform var(--transition-fast)}
.sfcl-toc[open] .sfcl-toc__summary::after{transform:rotate(-135deg) translateY(-2px)}
.sfcl-toc__list{margin:0;padding:0 16px 14px 16px;list-style:none;counter-reset:toc}
.sfcl-toc__list li{margin:0}
.sfcl-toc__list a{display:block;padding:6px 10px;border-left:2px solid transparent;font-size:15px;line-height:1.4;color:var(--sfcl-muted)}
.sfcl-toc__list a:hover{color:var(--sfcl-red)}
.sfcl-toc__list a.is-active{border-left-color:var(--sfcl-red);color:var(--sfcl-ink);font-weight:700;background:var(--color-bg-secondary)}
@media (min-width:1080px){
  .sfcl-toc{padding:16px 8px 12px;border:0;border-left:1px solid var(--sfcl-line);border-radius:0}
  .sfcl-toc__summary{min-height:0;padding:0 10px 10px;cursor:default;pointer-events:none;font-size:15px;color:var(--sfcl-subtle)}
  .sfcl-toc__summary::after{display:none}
  .sfcl-toc__list{padding:0;max-height:calc(100vh - var(--header-height) - 120px);overflow-y:auto}
}

/* ============================================================
   20 · MÓVIL GENERAL
   ============================================================ */
@media (max-width:767px){
  .sfcl{font-size:17px}
  .sfcl-section{padding:52px 0}
  .sfcl-section:first-child{padding-top:36px}
  .sfcl-prose,.sfcl-answer p,.sfcl-callout{font-size:17px}
  .sfcl-h3{margin-top:36px;font-size:21px}
  .sfcl-callout--quote,.sfcl-callout--final{font-size:18px}
  .sfcl-scope__card,.sfcl-card{padding:18px}
  .sfcl-scope__card p,.sfcl-card p{font-size:17px}
}

/* ============================================================
   21 · IMPRESIÓN
   ============================================================ */
@media print{
  .sfcl-hero{padding:24px 0;background:none!important;color:#000}
  .sfcl-hero__image,.sfcl-hero__overlay,.sfcl-aside,.sfcl-figure,.sfcl-cta,.sfcl-tag__cta,.sfcl-calc,.sfcl-check__reset{display:none!important}
  .sfcl-hero__title,.sfcl-hero__sub,.sfcl-meta li,.sfcl-breadcrumbs,.sfcl-breadcrumbs a{color:#000!important}
  .sfcl-tag{box-shadow:none;border:1px solid #999}
  .sfcl-section{padding:20px 0}
  .sfcl-section--alt::before{display:none}
  .sfcl-check__bar{position:static}
  .sfcl-faq__item,.sfcl-card,.sfcl-scope__card,.sfcl-table-wrap{break-inside:avoid;box-shadow:none}
}