/* ============================================================================
   GRUPO · DESIGN SYSTEM v7 · base/chrome.css
   Navbar + footer del esqueleto unico del grupo (prefijo .gr-).
   ----------------------------------------------------------------------------
   El chrome se genera ESTATICO en build/deploy (HTML emitido por el sitio o
   por su backend). PROHIBIDO montarlo como web component de runtime.
   Unico JS permitido: theme.js (toggle claro/oscuro, guard one-shot).

   Estructura navbar:
     <header class="gr-nav">
       <div class="gr-nav__inner">
         <a class="gr-nav__brand" href="/">[mark svg] <span class="gr-nav__wordmark">...</span></a>
         <button class="gr-nav__toggle" aria-label="Abrir menu" aria-expanded="false">
           <span></span><span></span><span></span></button>
         <nav class="gr-nav__links" aria-label="Navegacion principal">
           <div class="gr-nav__group"><a class="gr-nav__link" href="/">Inicio</a></div>
           ...
         </nav>
         <div class="gr-nav__actions">
           <button class="gr-nav__theme" data-theme-toggle aria-label="Cambiar tema">...</button>
           <!-- login info: variante anon o auth, decidida server-side/build -->
           <div class="gr-login" data-state="anon">...</div>
         </div>
       </div>
     </header>

   Estructura footer (estilo innovacionsantiago.cl):
     <footer class="gr-footer">
       <div class="gr-footer__top">
         <div class="gr-footer__brand">[mark] nombre + tagline mono</div>
         <div class="gr-footer__grid"> 4x <section class="gr-footer__col"> </div>
       </div>
       <!-- vinculacion societaria (v7.1, feedback Martin 2026-07-31):
            linea unica .gr-footer__attrib con .gr-footer__attrib-inner--line.
            Sitios CIS/cochid: "Operado por <legal> · una empresa de [mark CDS]
            Circulo de Santiago". Sitios propios de la matriz: "Circulo de
            Santiago SpA · RUT 78.372.913-K" a secas (nunca "una empresa de"
            sobre si misma). El mark CDS va INLINE (svg .gr-footer__attrib-mark). -->
       <div class="gr-footer__attrib">...</div>
       <div class="gr-footer__base">...</div>           (legal + dominios)
     </footer>
   ============================================================================ */

/* ================================ NAVBAR ================================== */

.gr-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  -webkit-backdrop-filter: saturate(1.1) blur(12px);
  backdrop-filter: saturate(1.1) blur(12px);
  border-bottom: 1px solid var(--line);
}
.gr-nav__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--pad-x);
}

/* Brand: mark SVG (stroke currentColor) + wordmark apilado */
.gr-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}
.gr-nav__brand svg { display: block; flex-shrink: 0; }
.gr-nav__wordmark {
  display: inline-flex;
  flex-direction: column;
  font-size: var(--fs-micro);
  font-weight: 800;
  line-height: .96;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--ink);
}
/* Variante wordmark 2 lineas mas grande (CDS) */
.gr-nav__wordmark--lg {
  font-size: 16px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: -.015em;
}
/* Variante wordmark tipografico mono (cochid, forma secundaria).
   El lockup primario cochid es mark cuadrado azul #1d4ed8 + wordmark
   apilado (ver brands/cochid/tokens.css); esta variante mono es para
   contextos compactos. */
.gr-nav__wordmark--mono {
  flex-direction: row;
  gap: .45em;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: .04em;
  align-items: baseline;
}
.gr-nav__wordmark--mono .gr-nav__sub {
  color: var(--accent);
  font-weight: 400;
}

/* Links agrupados con separador vertical */
.gr-nav__links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.gr-nav__group {
  display: inline-flex;
  gap: 22px;
  padding: 0 22px;
  border-right: 1px solid var(--line);
}
.gr-nav__group:last-child { border-right: 0; padding-right: 0; }
.gr-nav__link {
  color: var(--ink-muted);
  font-size: var(--fs-small);
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  text-decoration: none;
  transition: color var(--t-fast), border-color var(--t-fast);
  white-space: nowrap;
}
.gr-nav__link:hover { color: var(--ink); }
.gr-nav__link.is-active { color: var(--ink); border-bottom-color: var(--accent); }

/* Acciones a la derecha */
.gr-nav__actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* Toggle de tema: cuadrado, sin radius (icono sol/luna 18px stroke 1.8) */
.gr-nav__theme {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 0;
  background: none;
  color: var(--ink-muted);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.gr-nav__theme:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--paper-raised);
}
/* Icono segun tema: emitir ambos SVG y esconder el que no toca */
.gr-nav__theme .icon-moon { display: none; }
:root[data-theme="dark"] .gr-nav__theme .icon-sun { display: none; }
:root[data-theme="dark"] .gr-nav__theme .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .gr-nav__theme .icon-sun { display: none; }
  :root:not([data-theme="light"]) .gr-nav__theme .icon-moon { display: block; }
}

/* CTAs (Iniciar sesion / Crear cuenta) */
.gr-nav__cta {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-ctl);
  text-decoration: none;
  transition: opacity var(--t-fast), border-color var(--t-fast);
}
.gr-nav__cta--primary {
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
}
.gr-nav__cta--primary:hover { opacity: .92; }
.gr-nav__cta--secondary { color: var(--ink); border: 1px solid transparent; }
.gr-nav__cta--secondary:hover { border-color: var(--line); }

/* ---- Login info (estado decidido server-side o en build; CERO JS) ---- */
.gr-login {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}
.gr-login__enter {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--ink);
  background: transparent;
  font-weight: 600;
  text-decoration: none;
  transition: border-color var(--t-base), color var(--t-base);
}
.gr-login__enter:hover { border-color: var(--accent); color: var(--accent); }
.gr-login__user {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.gr-login__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.gr-login__name {
  max-width: 14ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gr-login__exit {
  color: var(--ink-muted);
  text-decoration: none;
  font-weight: 500;
}
.gr-login__exit:hover { color: var(--accent); }

/* ---- Hamburguesa mobile ---- */
.gr-nav__toggle {
  display: none;
  width: 34px;
  height: 34px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: none;
  cursor: pointer;
}
.gr-nav__toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
}

@media (max-width: 860px) {
  .gr-nav__inner { grid-template-columns: auto 1fr auto auto; }
  .gr-nav__toggle { display: inline-flex; }
  .gr-nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 8px var(--pad-x) 16px;
  }
  .gr-nav__links.is-open { display: flex; }
  .gr-nav__group {
    flex-direction: column;
    gap: 0;
    padding: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .gr-nav__group:last-child { border-bottom: 0; }
  .gr-nav__link { padding: 10px 0; }
  .gr-nav__cta--secondary { display: none; }
}

/* ================================ FOOTER ================================== */

.gr-footer {
  border-top: 1px solid var(--line-strong);
  background: var(--paper);
  margin-top: auto;
}
.gr-footer__top {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px var(--pad-x) 40px;
}
.gr-footer__brand {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--ink);
}
.gr-footer__brand svg { flex-shrink: 0; }
.gr-footer__brand-name { font-size: 14px; font-weight: 700; }
.gr-footer__brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  max-width: 24ch;
  margin-top: 4px;
}

/* Columnas (Empresa / Productos / Contacto / Ecosistema-Sitios del grupo) */
.gr-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.gr-footer__col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--ink-muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin: 0 0 14px;
}
.gr-footer__col ul { list-style: none; margin: 0; padding: 0; }
.gr-footer__col li { font-size: 13px; margin-bottom: 8px; }
.gr-footer__col a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-base), border-color var(--t-base);
}
.gr-footer__col a:hover { color: var(--accent); border-bottom-color: var(--accent); }
/* Sublabel mono bajo un link (patron CDS programas) */
.gr-footer__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-muted);
  margin-top: 2px;
}

/* ---- Vinculacion A: discreta, "Una empresa de" (producto/filial -> matriz).
       Nombre de la matriz CON "SpA". ---- */
.gr-footer__attrib {
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.gr-footer__attrib-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px var(--pad-x);
}
.gr-footer__attrib-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.gr-footer__attrib-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-muted);
  font-size: 12.5px;
  text-decoration: none;
}
.gr-footer__attrib-name { color: var(--ink); font-weight: 600; }
/* Variante espejo (producto -> CIS): nombre mas prominente */
.gr-footer__attrib-name--lg { font-size: 16px; font-weight: 800; letter-spacing: -.015em; }

/* v7.1: linea unica "Operado por <legal> · una empresa de [mark] Circulo de Santiago" */
.gr-footer__attrib-inner--line {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
}
.gr-footer__attrib-sep { color: var(--ink-muted); }
.gr-footer__attrib-mark {
  display: inline-block;
  flex: none;
  vertical-align: -2px;
  color: var(--ink);
}

/* ---- Vinculacion B: prominente, "Operado por" (matriz -> operadora).
       Nombre de la operadora SIN "SpA". Fila entera clickeable. ---- */
.gr-footer__sibling {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px var(--pad-x);
  text-decoration: none;
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background var(--t-base), color var(--t-base);
}
.gr-footer__sibling:hover { background: var(--paper-raised); color: var(--accent); }
.gr-footer__sibling-text { display: flex; flex-direction: column; gap: 2px; }
.gr-footer__sibling-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.gr-footer__sibling-name { font-weight: 700; font-size: 17px; letter-spacing: -.015em; }
.gr-footer__sibling-arrow {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--ink-muted);
}

/* ---- Base legal (server-first, siempre estatica): copyright + dominios ---- */
.gr-footer__base {
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  padding: 18px 0;
  font-size: 12px;
}
.gr-footer__base-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.gr-footer__base a { color: inherit; }
.gr-footer__sites {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  opacity: .75;
}

@media (max-width: 960px) {
  .gr-footer__top { grid-template-columns: 1fr; gap: 32px; padding-top: 40px; }
  .gr-footer__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .gr-footer__grid { grid-template-columns: 1fr; }
}