/* =====================================================================
   Fundación Rheumatos — sistema visual
   Concepto: humanismo editorial + red molecular viva.
   Paleta derivada del logotipo: pizarra, rojo Rheumatos, dorado, azul-nodo.
   ===================================================================== */

/* ---------- Tokens ---------- */
:root{
  /* marca */
  --ink:        #25323f;   /* pizarra "Fundación" */
  --ink-deep:   #18222d;   /* secciones oscuras */
  --ink-soft:   #5a6b7a;
  --red:        #e0241b;   /* "Rheumatos" */
  --red-deep:   #b81a13;
  --gold:       #f6b41e;   /* grafo molecular */
  --gold-deep:  #d9970a;
  --blue:       #2e6fd6;   /* nodos */
  --blue-deep:  #1f55ad;

  /* superficies */
  --paper:      #fbf7f1;   /* crema cálido */
  --paper-2:    #f4ece1;   /* crema más profundo */
  --white:      #ffffff;
  --line:       #e7ddcf;
  --line-soft:  #efe7da;

  /* texto */
  --tx:         #25323f;
  --tx-soft:    #5d6b78;
  --tx-mute:    #8a96a1;
  --on-dark:    #eef3f8;
  --on-dark-soft:#9fb0bf;

  /* tipografía */
  --display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --body:    "Hanken Grotesk", system-ui, sans-serif;

  /* medidas */
  --wrap: 1200px;
  --r-sm: 10px;
  --r:    18px;
  --r-lg: 28px;
  --r-xl: 40px;

  --sh-sm: 0 2px 10px rgba(37,50,63,.06);
  --sh:    0 18px 50px -24px rgba(37,50,63,.30);
  --sh-lg: 0 40px 90px -40px rgba(37,50,63,.45);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--body);
  font-size:clamp(16px,1.05vw,17.5px);
  line-height:1.7;
  color:var(--tx);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
::selection{ background:var(--gold); color:var(--ink-deep); }

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:800;
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--ink);
  margin:0 0 .5em;
  text-wrap:balance;
}
h1{ font-size:clamp(2.5rem,6.2vw,5rem); }
h2{ font-size:clamp(1.9rem,3.8vw,3.1rem); }
h3{ font-size:clamp(1.25rem,1.9vw,1.6rem); }
p{ margin:0 0 1.1em; }

/* ---------- Layout ---------- */
.wrap{ width:min(var(--wrap),92vw); margin-inline:auto; }
.section{ position:relative; padding:clamp(64px,9vw,128px) 0; }
.section--paper2{ background:var(--paper-2); }
.section--dark{ background:var(--ink-deep); color:var(--on-dark); }
.section--dark h1,.section--dark h2,.section--dark h3{ color:#fff; }

.eyebrow{
  display:inline-flex; align-items:center; gap:.55em;
  font-family:var(--display); font-weight:700;
  font-size:.78rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--red-deep);
}
.eyebrow::before{
  content:""; width:26px; height:2px; border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--red));
}
.section--dark .eyebrow{ color:var(--gold); }

.lead{ font-size:clamp(1.12rem,1.5vw,1.32rem); color:var(--tx-soft); max-width:62ch; }
.section-head{ max-width:720px; margin-bottom:clamp(36px,5vw,64px); }
.center{ text-align:center; margin-inline:auto; }

/* ---------- Botones ---------- */
.btn{
  --bg:var(--ink); --fg:#fff;
  position:relative; display:inline-flex; align-items:center; gap:.6em;
  padding:.95em 1.5em; border:none; border-radius:999px;
  font-family:var(--display); font-weight:700; font-size:.98rem; letter-spacing:-.01em;
  color:var(--fg); background:var(--bg); overflow:hidden;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
  box-shadow:var(--sh-sm);
}
.btn svg{ width:1.05em; height:1.05em; transition:transform .35s var(--ease); }
.btn::after{ /* brillo barrido */
  content:""; position:absolute; inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-120%); transition:transform .7s var(--ease);
}
.btn:hover{ transform:translateY(-3px); box-shadow:var(--sh); }
.btn:hover::after{ transform:translateX(120%); }
.btn:hover svg{ transform:translateX(3px); }
.btn--red{ --bg:linear-gradient(120deg,var(--red),var(--red-deep)); }
.btn--gold{ --bg:linear-gradient(120deg,var(--gold),var(--gold-deep)); --fg:var(--ink-deep); }
.btn--ghost{ --bg:transparent; --fg:var(--ink); box-shadow:inset 0 0 0 1.5px var(--line); }
.btn--ghost:hover{ background:rgba(37,50,63,.05); }
/* Fantasma sobre fondos oscuros (hero, CTA, page-hero, secciones oscuras) */
.hero .btn--ghost,
.cta .btn--ghost,
.page-hero .btn--ghost,
.section--dark .btn--ghost{ --fg:#fff; box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.45); }
.hero .btn--ghost:hover,
.cta .btn--ghost:hover,
.page-hero .btn--ghost:hover,
.section--dark .btn--ghost:hover{ background:rgba(255,255,255,.12); box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.75); }
.btn--lg{ padding:1.1em 1.8em; font-size:1.05rem; }

.txt-link{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--display); font-weight:700; color:var(--red);
  position:relative;
}
.txt-link svg{ width:1em; height:1em; transition:transform .3s var(--ease); }
.txt-link::after{ content:""; position:absolute; left:0; bottom:-3px; height:2px; width:100%;
  background:currentColor; transform:scaleX(0); transform-origin:left; transition:transform .35s var(--ease); }
.txt-link:hover::after{ transform:scaleX(1); }
.txt-link:hover svg{ transform:translateX(4px); }

/* ===================================================================
   Topbar + Header
   =================================================================== */
.topbar{ background:var(--ink-deep); color:var(--on-dark-soft); font-size:.85rem; }
.topbar__in{ display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.5rem 0; }
.topbar a{ display:inline-flex; align-items:center; gap:.45em; transition:color .25s; }
.topbar a:hover{ color:#fff; }
.topbar svg{ width:15px; height:15px; }
.topbar__contact{ display:flex; gap:1.4rem; flex-wrap:wrap; }
.topbar__social{ display:flex; gap:.4rem; }
.topbar__social a{ width:30px; height:30px; justify-content:center; border-radius:50%;
  background:rgba(255,255,255,.07); }
.topbar__social a:hover{ background:var(--gold); color:var(--ink-deep); }

.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(251,247,241,.82); backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid transparent; transition:box-shadow .3s, border-color .3s, background .3s;
}
.site-header.scrolled{ box-shadow:var(--sh-sm); border-color:var(--line-soft); background:rgba(251,247,241,.95); }
.site-header__in{ display:flex; align-items:center; justify-content:space-between; gap:1.5rem; padding:.7rem 0; }
.brand{ flex:none; }
.brand img{ height:46px; width:auto; }
.nav{ display:flex; align-items:center; gap:.7rem; margin-left:auto; }
.nav a{
  position:relative; font-family:var(--display); font-weight:600; font-size:.96rem; white-space:nowrap;
  padding:.55em .8em; border-radius:999px; color:var(--ink); transition:color .25s;
}
.nav a::after{ content:""; position:absolute; left:50%; bottom:.35em; width:0; height:2px; border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--red)); transform:translateX(-50%); transition:width .3s var(--ease); }
.nav a:hover::after,.nav a.active::after{ width:1.4em; }
.nav a.active{ color:var(--red-deep); }
.header-cta{ display:flex; align-items:center; gap:.8rem; }

.nav-toggle{ display:none; width:46px; height:46px; border:1px solid var(--line); border-radius:12px;
  background:var(--white); position:relative; }
.nav-toggle span{ position:absolute; left:50%; top:50%; width:20px; height:2px; background:var(--ink);
  transform:translate(-50%,-50%); transition:.3s var(--ease); }
.nav-toggle span:nth-child(1){ transform:translate(-50%,-7px); }
.nav-toggle span:nth-child(3){ transform:translate(-50%,5px); }
body.nav-open .nav-toggle span:nth-child(1){ transform:translate(-50%,-50%) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2){ opacity:0; }
body.nav-open .nav-toggle span:nth-child(3){ transform:translate(-50%,-50%) rotate(-45deg); }

/* ===================================================================
   Hero — red molecular viva
   =================================================================== */
.hero{ position:relative; background:var(--ink-deep); color:var(--on-dark); overflow:hidden;
  padding:clamp(90px,15vh,160px) 0 clamp(80px,12vh,130px); }
.hero__canvas{ position:absolute; inset:0; width:100%; height:100%; z-index:0; opacity:.9; }
.hero__mesh{ position:absolute; inset:-20%; z-index:0; pointer-events:none;
  background:
    radial-gradient(40% 50% at 78% 18%, rgba(46,111,214,.40), transparent 70%),
    radial-gradient(36% 46% at 12% 82%, rgba(224,36,27,.30), transparent 70%),
    radial-gradient(42% 50% at 88% 90%, rgba(246,180,30,.22), transparent 70%);
  filter:blur(10px); animation:meshDrift 22s ease-in-out infinite alternate; }
@keyframes meshDrift{ to{ transform:translate3d(-4%,3%,0) scale(1.08); } }
.hero__in{ position:relative; z-index:2; max-width:880px; }
.hero .eyebrow{ color:var(--gold); }
.hero h1{ color:#fff; margin:.25em 0 .35em; }
.hero h1 .grad{
  background:linear-gradient(100deg,var(--gold),var(--red) 55%,var(--blue));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero__sub{ font-size:clamp(1.1rem,1.6vw,1.4rem); color:var(--on-dark-soft); max-width:60ch; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:.9rem; margin-top:2rem; }
.hero__scroll{ position:absolute; left:50%; bottom:26px; transform:translateX(-50%); z-index:2;
  font-size:.74rem; letter-spacing:.2em; text-transform:uppercase; color:var(--on-dark-soft);
  display:flex; flex-direction:column; align-items:center; gap:.5rem; }
.hero__scroll span{ width:1px; height:34px; background:linear-gradient(var(--gold),transparent); animation:scrollPulse 1.8s ease-in-out infinite; }
@keyframes scrollPulse{ 0%,100%{ opacity:.3; transform:scaleY(.6);} 50%{ opacity:1; transform:scaleY(1);} }

/* franja de marca (chips de cobertura) */
.hero__chips{ display:flex; flex-wrap:wrap; gap:.6rem; margin-top:2.2rem; }
.chip{ display:inline-flex; align-items:center; gap:.5em; padding:.5em 1em; border-radius:999px;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12);
  font-size:.85rem; color:var(--on-dark); }
.chip b{ color:var(--gold); }

/* ===================================================================
   Sobre / split editorial
   =================================================================== */
.split{ display:grid; grid-template-columns:1.05fr 1fr; gap:clamp(32px,5vw,72px); align-items:center; }
.split--rev .split__media{ order:2; }
.split__media{ position:relative; }
.split__media .ph{ border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh); aspect-ratio:4/5; }
.split__media img{ width:100%; height:100%; object-fit:cover; }
.split__badge{ position:absolute; bottom:-26px; left:-26px; background:var(--white);
  border-radius:var(--r); padding:1.1rem 1.4rem; box-shadow:var(--sh); display:flex; gap:.9rem; align-items:center; max-width:78%; }
.split__badge .num{ font-family:var(--display); font-weight:800; font-size:2.2rem; color:var(--red); line-height:1; }
.split__badge small{ color:var(--tx-soft); font-size:.85rem; line-height:1.3; }
.tick{ display:flex; gap:.8rem; align-items:flex-start; margin:.7rem 0; }
.tick svg{ flex:none; width:26px; height:26px; color:var(--blue); margin-top:2px; }
.tick b{ font-family:var(--display); }

/* ===================================================================
   Áreas (qué hacemos) — cards
   =================================================================== */
.grid{ display:grid; gap:1.4rem; }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }

.area{
  position:relative; background:var(--white); border:1px solid var(--line-soft);
  border-radius:var(--r-lg); padding:2rem 1.7rem 1.9rem; overflow:hidden;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.area::before{ content:""; position:absolute; left:0; top:0; height:4px; width:100%;
  background:linear-gradient(90deg,var(--gold),var(--red)); transform:scaleX(0); transform-origin:left;
  transition:transform .45s var(--ease); }
.area:hover{ transform:translateY(-8px); box-shadow:var(--sh); border-color:transparent; }
.area:hover::before{ transform:scaleX(1); }
.area__ic{ width:56px; height:56px; border-radius:16px; display:grid; place-items:center; margin-bottom:1.1rem;
  background:linear-gradient(140deg,rgba(46,111,214,.14),rgba(246,180,30,.16)); color:var(--blue); }
.area__ic svg{ width:28px; height:28px; }
.area h3{ margin-bottom:.45rem; }
.area p{ color:var(--tx-soft); margin:0; font-size:.97rem; }

/* ===================================================================
   Valores — lista numerada elegante
   =================================================================== */
.values{ display:grid; grid-template-columns:repeat(2,1fr); gap:0; border-top:1px solid var(--line); }
.value{ display:flex; gap:1.2rem; padding:1.7rem .4rem; border-bottom:1px solid var(--line);
  align-items:flex-start; transition:background .3s; }
.value:hover{ background:var(--paper-2); }
.value:nth-child(odd){ border-right:1px solid var(--line); padding-right:2rem; }
.value:nth-child(even){ padding-left:2rem; }
.value .vn{ font-family:var(--display); font-weight:800; font-size:1.1rem; color:var(--gold-deep);
  flex:none; width:2.2em; }
.value h3{ font-size:1.15rem; margin-bottom:.25rem; }
.value p{ margin:0; color:var(--tx-soft); font-size:.95rem; }

/* ===================================================================
   Impacto — stats band
   =================================================================== */
.stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:2rem; }
.stat{ text-align:center; position:relative; }
.stat__n{ font-family:var(--display); font-weight:800; line-height:1;
  font-size:clamp(2.8rem,5.5vw,4.4rem);
  background:linear-gradient(120deg,var(--gold),var(--red)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat__l{ color:var(--on-dark-soft); margin-top:.6rem; font-size:1rem; max-width:24ch; margin-inline:auto; }
.stats .stat:not(:last-child)::after{ content:""; position:absolute; right:-1rem; top:15%; height:70%; width:1px;
  background:rgba(255,255,255,.12); }

/* ===================================================================
   Blog
   =================================================================== */
.post{ background:var(--white); border:1px solid var(--line-soft); border-radius:var(--r-lg); overflow:hidden;
  display:flex; flex-direction:column; transition:transform .4s var(--ease), box-shadow .4s var(--ease); }
.post:hover{ transform:translateY(-8px); box-shadow:var(--sh); }
.post__img{ aspect-ratio:16/10; overflow:hidden; background:var(--paper-2); }
.post__img img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.post:hover .post__img img{ transform:scale(1.06); }
.post__body{ padding:1.5rem 1.5rem 1.7rem; display:flex; flex-direction:column; flex:1; }
.post__tag{ font-family:var(--display); font-weight:700; font-size:.74rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--blue); margin-bottom:.6rem; }
.post h3{ font-size:1.22rem; margin-bottom:.5rem; }
.post p{ color:var(--tx-soft); font-size:.95rem; flex:1; }
.post .txt-link{ margin-top:.6rem; }

/* ===================================================================
   CTA band
   =================================================================== */
.cta{ position:relative; overflow:hidden; border-radius:var(--r-xl);
  background:linear-gradient(125deg,var(--ink-deep),#243748); color:#fff;
  padding:clamp(40px,6vw,76px); text-align:center; }
.cta__mesh{ position:absolute; inset:-30%; z-index:0; pointer-events:none;
  background:radial-gradient(40% 50% at 20% 10%,rgba(246,180,30,.30),transparent 70%),
             radial-gradient(40% 50% at 85% 90%,rgba(224,36,27,.30),transparent 70%);
  filter:blur(8px); }
.cta>*{ position:relative; z-index:1; }
.cta h2{ color:#fff; }
.cta__cta{ display:flex; gap:.9rem; justify-content:center; flex-wrap:wrap; margin-top:1.6rem; }

/* ===================================================================
   Contacto
   =================================================================== */
.contact{ display:grid; grid-template-columns:1fr 1.15fr; gap:clamp(32px,5vw,64px); align-items:start; }
.contact__info .ic-row{ display:flex; gap:1rem; align-items:flex-start; margin-bottom:1.5rem; }
.contact__info .ic{ width:48px; height:48px; flex:none; border-radius:14px; display:grid; place-items:center;
  background:linear-gradient(140deg,rgba(46,111,214,.14),rgba(246,180,30,.16)); color:var(--blue); }
.contact__info .ic svg{ width:22px; height:22px; }
.contact__info b{ font-family:var(--display); display:block; }
.contact__info a,.contact__info span{ color:var(--tx-soft); }
.contact__info a:hover{ color:var(--red); }

.form{ background:var(--white); border:1px solid var(--line-soft); border-radius:var(--r-lg);
  padding:clamp(1.5rem,3vw,2.4rem); box-shadow:var(--sh-sm); }
.field{ margin-bottom:1.1rem; }
.field label{ font-family:var(--display); font-weight:600; font-size:.9rem; display:block; margin-bottom:.4rem; }
.field input,.field textarea{
  width:100%; padding:.85em 1em; border:1.5px solid var(--line); border-radius:12px;
  font-family:inherit; font-size:1rem; color:var(--tx); background:var(--paper); transition:border-color .25s, box-shadow .25s; }
.field input:focus,.field textarea:focus{ outline:none; border-color:var(--blue); box-shadow:0 0 0 4px rgba(46,111,214,.12); background:#fff; }
.field textarea{ resize:vertical; min-height:130px; }
.form__row{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.hp{ position:absolute; left:-9999px; opacity:0; height:0; width:0; }
.check{ display:flex; gap:.6rem; align-items:flex-start; font-size:.88rem; color:var(--tx-soft); margin-bottom:1.1rem; }
.check input{ margin-top:.25rem; accent-color:var(--blue); }
.form__msg{ font-size:.92rem; margin-top:.6rem; min-height:1.2em; }
.form__msg.ok{ color:var(--blue-deep); }
.form__msg.err{ color:var(--red-deep); }

/* ===================================================================
   Footer
   =================================================================== */
.site-footer{ background:var(--ink-deep); color:var(--on-dark-soft); padding:clamp(56px,7vw,84px) 0 2rem; }
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:2.5rem; }
.site-footer h3{ color:#fff; font-size:1rem; letter-spacing:.02em; margin-bottom:1.1rem; }
.footer-logo img{ height:52px; filter:brightness(0) invert(1); opacity:.95; margin-bottom:1rem; }
.site-footer p{ font-size:.92rem; line-height:1.7; }
.footer-links{ list-style:none; padding:0; margin:0; }
.footer-links li{ margin-bottom:.6rem; }
.footer-links a{ transition:color .25s, padding-left .25s; font-size:.93rem; }
.footer-links a:hover{ color:var(--gold); padding-left:.3rem; }
.footer-social{ display:flex; gap:.6rem; margin-top:.4rem; }
.footer-social a{ width:38px; height:38px; display:grid; place-items:center; border-radius:50%;
  background:rgba(255,255,255,.07); transition:.25s; }
.footer-social a:hover{ background:var(--gold); color:var(--ink-deep); transform:translateY(-3px); }
.footer-social svg{ width:18px; height:18px; }
.footer-bottom{ margin-top:3rem; padding-top:1.6rem; border-top:1px solid rgba(255,255,255,.1);
  display:flex; flex-wrap:wrap; gap:.6rem 1.5rem; justify-content:space-between; font-size:.84rem; }
.footer-bottom a:hover{ color:var(--gold); }

/* ===================================================================
   Interior page header
   =================================================================== */
.page-hero{ background:var(--ink-deep); color:#fff; position:relative; overflow:hidden;
  padding:clamp(70px,10vw,120px) 0 clamp(50px,7vw,80px); }
.page-hero__mesh{ position:absolute; inset:-30%; z-index:0;
  background:radial-gradient(40% 60% at 85% 10%,rgba(46,111,214,.35),transparent 70%),
             radial-gradient(40% 60% at 5% 90%,rgba(246,180,30,.22),transparent 70%); filter:blur(8px); }
.page-hero__in{ position:relative; z-index:1; max-width:780px; }
.page-hero h1{ color:#fff; }
.page-hero .lead{ color:var(--on-dark-soft); }
.crumb{ font-size:.85rem; color:var(--on-dark-soft); margin-bottom:1rem; display:flex; gap:.5rem; }
.crumb a:hover{ color:var(--gold); }

/* artículo / texto legal */
.prose{ max-width:760px; margin-inline:auto; }
.prose h2{ font-size:clamp(1.4rem,2.4vw,2rem); margin-top:2em; }
.prose h3{ margin-top:1.6em; }
.prose ul{ padding-left:1.2em; }
.prose li{ margin-bottom:.5em; }
.prose a{ color:var(--red-deep); text-decoration:underline; text-underline-offset:3px; }

/* ===================================================================
   Reveal on scroll
   =================================================================== */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal[data-d="1"]{ transition-delay:.08s; }
.reveal[data-d="2"]{ transition-delay:.16s; }
.reveal[data-d="3"]{ transition-delay:.24s; }
.reveal[data-d="4"]{ transition-delay:.32s; }
@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .hero__mesh,.hero__scroll span{ animation:none; }
  html{ scroll-behavior:auto; }
}

/* hex decorativo */
.hexline{ position:absolute; opacity:.5; pointer-events:none; z-index:1; }

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width:1000px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:2rem; }
}
@media (max-width:860px){
  .nav{ position:fixed; inset:0 0 0 auto; width:min(82vw,340px);
    flex-direction:column; align-items:flex-start; justify-content:flex-start;
    gap:.3rem; padding:6rem 1.6rem 2rem; background:var(--paper);
    box-shadow:-20px 0 60px -30px rgba(0,0,0,.4); transform:translateX(100%);
    transition:transform .4s var(--ease); }
  body.nav-open .nav{ transform:none; }
  .nav a{ width:100%; font-size:1.1rem; padding:.7em .5em; }
  .nav-toggle{ display:block; z-index:70; }
  .header-cta .btn{ display:none; }
  .split,.split--rev .split__media{ grid-template-columns:1fr; order:0; }
  .split{ grid-template-columns:1fr; }
  .split__media{ max-width:480px; margin-inline:auto; }
  .contact{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:1fr; gap:2.5rem; }
  .stats .stat:not(:last-child)::after{ display:none; }
  .grid-3{ grid-template-columns:1fr; }
}
@media (max-width:600px){
  .grid-4,.grid-2{ grid-template-columns:1fr; }
  .values{ grid-template-columns:1fr; }
  .value:nth-child(odd){ border-right:none; padding-right:.4rem; }
  .value:nth-child(even){ padding-left:.4rem; }
  .form__row{ grid-template-columns:1fr; }
  .topbar__contact{ display:none; }
  .split__badge{ left:0; }
}

.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; }

/* ===================================================================
   Selector de idioma (ES/EN)
   =================================================================== */
.nav a.lang-switch{
  font-family:var(--display); font-size:.82rem; font-weight:700; color:var(--tx-mute);
  border:1.5px solid var(--line); border-radius:999px; padding:.4em .85em; margin-left:.5rem;
}
.nav a.lang-switch::after{ display:none; }
.nav a.lang-switch:hover{ color:var(--red-deep); border-color:var(--gold-deep); }
@media (max-width:860px){
  .nav a.lang-switch{ width:auto; align-self:flex-start; margin-top:.8rem; margin-left:0; }
}

/* ===================================================================
   Sello Kit Digital
   =================================================================== */
.kit-digital{ padding:clamp(30px,4vw,46px) 0; background:var(--paper-2); border-top:1px solid var(--line); }
.kit-digital .wrap{ display:flex; justify-content:center; }
.kit-digital img{ max-width:640px; width:100%; height:auto; display:block; }


/* ---------- Nav dropdowns (submenús La Fundación / Actualidad) ---------- */
.nav-drop{ position:relative; display:inline-flex; align-items:center; gap:.05rem; }
.nav-caret{ appearance:none; background:none; border:none; cursor:pointer; padding:.3em; margin-left:-.4em;
  color:var(--ink); display:inline-flex; align-items:center; justify-content:center; }
.nav-caret svg{ width:14px; height:14px; transition:transform .25s var(--ease); }
.nav-drop.open .nav-caret svg, .nav-drop:hover .nav-caret svg{ transform:rotate(180deg); }
.nav-drop__menu{ position:absolute; top:100%; left:0; margin-top:.4rem; min-width:240px; background:var(--paper);
  border-radius:14px; box-shadow:0 24px 48px -24px rgba(0,0,0,.35); padding:.5rem; display:none;
  flex-direction:column; z-index:80; }
.nav-drop__menu a{ padding:.6em .8em; border-radius:10px; white-space:nowrap; font-size:.92rem;
  font-family:var(--display); font-weight:600; color:var(--ink); }
.nav-drop__menu a:hover{ background:rgba(0,0,0,.05); }
.nav-drop:hover .nav-drop__menu, .nav-drop.open .nav-drop__menu{ display:flex; }
@media (max-width:860px){
  .nav-drop{ flex-direction:column; align-items:flex-start; width:100%; }
  .nav-drop__menu{ position:static; box-shadow:none; margin-top:0; padding-left:1.2rem; width:100%; }
  .nav-drop:hover .nav-drop__menu{ display:none; }
  .nav-drop.open .nav-drop__menu{ display:flex; }
}