/* ===== Patrimonio de la Humanidad en Castilla y León ===== */
/* Diseño moderno, elegante, temática patrimonial */

:root{
  --stone-900:#1c1917;
  --stone-800:#292524;
  --stone-700:#44403c;
  --stone-600:#57534e;
  --stone-500:#78716c;
  --stone-400:#a8a29e;
  --stone-300:#d6d3d1;
  --stone-200:#e7e5e4;
  --stone-100:#f5f5f4;
  --cream:#faf8f4;
  --gold:#b08d57;
  --gold-light:#c9a878;
  --terracotta:#a2482a;
  --crimson:#7f1d1d;
  --ink:#2b2622;
  --shadow:0 18px 40px -12px rgba(0,0,0,.45);
  --shadow-sm:0 6px 18px -6px rgba(0,0,0,.35);
  --serif:"Cormorant Garamond","Playfair Display",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --nav-h:78px;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-soft:cubic-bezier(.25,1,.5,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--cream);
  line-height:1.7;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--terracotta);text-decoration:none;transition:color .25s}
a:hover{color:var(--gold)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
.nav :focus-visible,.hero :focus-visible,.page-hero :focus-visible,footer :focus-visible,.lightbox :focus-visible{outline-color:var(--gold-light)}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.15;color:var(--stone-900)}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.5vw,2.8rem);letter-spacing:.01em}
h3{font-size:clamp(1.4rem,2.2vw,1.8rem)}
p{margin:1em 0}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* ===== NAVBAR ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s,box-shadow .4s,padding .4s;
  padding:18px 0;
}
.nav.scrolled{
  background:rgba(28,25,23,.96);
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset, var(--shadow-sm);
  padding:12px 0;
  backdrop-filter:blur(8px);
}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;color:#fff}
.brand-logo{display:block;height:54px;width:auto}
.nav ul{list-style:none;display:flex;gap:6px;align-items:center}
.nav ul a{
  color:rgba(255,255,255,.82);font-size:.92rem;font-weight:500;
  padding:10px 14px;border-radius:6px;letter-spacing:.02em;
}
.nav ul a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav .lang{display:flex;gap:2px;font-size:.78rem;font-weight:600;letter-spacing:.1em}
.nav .lang a{padding:6px 8px;opacity:.6}
.nav .lang a.active{opacity:1;color:var(--gold-light)}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* ===== HERO ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  color:#fff;overflow:hidden;
  background:linear-gradient(rgba(28,25,23,.55),rgba(28,25,23,.75)),var(--stone-900);
}
.hero .bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.08);animation:heroZoom 20s var(--ease-soft) forwards;
}
@keyframes heroZoom{to{transform:scale(1)}}
.hero .overlay{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,rgba(0,0,0,.2),rgba(0,0,0,.7))}
.hero .content{position:relative;z-index:2;padding:140px 0 90px;text-align:center}
.hero .kicker{
  display:inline-block;font-size:.8rem;letter-spacing:.4em;text-transform:uppercase;
  color:var(--gold-light);margin-bottom:18px;font-weight:600;text-shadow:0 1px 14px rgba(0,0,0,.65);
}
.hero h1{color:#fff;margin-bottom:22px;text-shadow:0 4px 30px rgba(0,0,0,.5)}
.hero p{font-size:clamp(1.05rem,2vw,1.25rem);max-width:680px;margin:0 auto 32px;opacity:.92}
.hero .cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:40px;font-weight:600;font-size:.95rem;
  letter-spacing:.02em;transition:transform .25s,background .25s,color .25s;
}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--terracotta));color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 22px 45px -12px rgba(176,141,87,.6)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.btn:active{transform:translateY(0) scale(.98)}
.scroll-cue{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:grid;place-items:center;width:48px;height:48px;color:rgba(255,255,255,.8);font-size:1.6rem;animation:bob 2.4s infinite ease-in-out;transition:opacity .5s var(--ease-out),color .25s}
.scroll-cue:hover{color:#fff}
.nav.scrolled ~ .hero .scroll-cue{opacity:0;pointer-events:none}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ===== SECTION ===== */
section{padding:90px 0}
.section-head{text-align:center;margin-bottom:54px}
.section-head .kicker{color:var(--terracotta);font-size:.78rem;letter-spacing:.35em;text-transform:uppercase;font-weight:700;margin-bottom:10px;display:block}
.section-head h2{margin-bottom:14px}
.section-head .lead{max-width:680px;margin:0 auto;color:var(--stone-600);font-size:1.08rem}

/* ===== SITES GRID ===== */
.sites-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px}
.site-card{
  position:relative;border-radius:18px;overflow:hidden;
  aspect-ratio:4/5;box-shadow:var(--shadow-sm);
  background:var(--stone-800);cursor:pointer;
  transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s;
}
.site-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.site-card .veil{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.85) 0%,rgba(0,0,0,.15) 55%,rgba(0,0,0,.05) 100%)}
.site-card .meta{position:absolute;left:0;right:0;bottom:0;padding:26px 24px;color:#fff}
.site-card .meta .tag{font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold-light);font-weight:700;margin-bottom:8px}
.site-card .meta h3{color:#fff;font-size:1.7rem;margin-bottom:6px}
.site-card .meta p{font-size:.88rem;opacity:.85;margin:0}
.site-card .arrow{
  position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.14);backdrop-filter:blur(6px);
  display:grid;place-items:center;color:#fff;font-size:1.1rem;
  opacity:0;transform:translateY(-6px);transition:.4s
}
.site-card:focus-visible{transform:translateY(-6px);box-shadow:var(--shadow)}
.site-card:focus-visible .arrow{opacity:1;transform:none}
.site-card:active{transform:translateY(-2px) scale(.99)}
@media(hover:none){.site-card .arrow{opacity:1;transform:none}}
@media (hover:hover){
  .site-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
  .site-card:hover img{transform:scale(1.08)}
  .site-card:hover .arrow{opacity:1;transform:translateY(0)}
  .gallery .gitem:hover img{transform:scale(1.1)}
}

/* ===== INTRO STRIP ===== */
.intro-strip{background:var(--stone-900);color:var(--stone-200);padding:80px 0}
.intro-strip h2{color:#fff}
.intro-strip .lead{color:var(--stone-300)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:30px;margin-top:48px}
.stat{text-align:center}
.stat .num{font-family:var(--serif);font-size:3rem;color:var(--gold-light);font-weight:600;line-height:1}
.stat .lbl{font-size:.78rem;letter-spacing:.25em;text-transform:uppercase;color:var(--stone-400);margin-top:8px}

/* ===== SITE PAGE ===== */
.page-hero{
  position:relative;height:62vh;min-height:440px;display:flex;align-items:flex-end;
  color:#fff;overflow:hidden;background:var(--stone-900);
}
.page-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);animation:heroZoom 16s var(--ease-soft) forwards}
.page-hero .veil{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.8),rgba(0,0,0,.25) 60%,rgba(0,0,0,.4))}
.page-hero .content{position:relative;z-index:2;padding:0 0 64px;width:100%}
.page-hero h1{color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.5);margin-bottom:10px}
.page-hero .breadcrumb{font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-light);font-weight:600}
.page-hero .breadcrumb a{color:rgba(255,255,255,.7)}
.page-hero .breadcrumb a:hover{color:#fff}

.subnav{
  position:sticky;top:var(--nav-h);z-index:40;background:rgba(250,248,244,.95);
  border-bottom:1px solid var(--stone-200);backdrop-filter:blur(8px);
}
.subnav .container{display:flex;gap:8px;flex-wrap:wrap;padding:14px 24px}
.subnav a{padding:10px 16px;border-radius:30px;font-size:.85rem;font-weight:600;color:var(--stone-600);letter-spacing:.02em;transition:background .25s,color .25s}
.subnav a.active,.subnav a:hover{background:var(--stone-900);color:#fff}

.site-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start;padding:80px 0}
.site-layout .main p{color:var(--stone-700)}
.site-layout .main h3{margin-top:2.2em;margin-bottom:.5em;color:var(--stone-900)}
.site-layout .main h3:first-child{margin-top:0}
.aside{
  position:sticky;top:calc(var(--nav-h) + 80px);
  background:#fff;border-radius:14px;padding:28px;
  box-shadow:var(--shadow-sm);border:1px solid var(--stone-200);
}
.aside h4{font-family:var(--sans);font-size:.78rem;letter-spacing:.25em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.aside dl{display:grid;gap:12px}
.aside dt{font-size:.78rem;color:var(--stone-500);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.aside dd{font-size:.95rem;color:var(--stone-800);margin:0}
.aside .quote{margin-top:20px;padding:18px;background:var(--cream);border-left:3px solid var(--gold);border-radius:8px;font-style:italic;color:var(--stone-600);font-size:.92rem}

/* ===== SUBSECTION HEADINGS (sub-encabezado) ===== */
.subsection-h{
  margin:2.6em 0 .2em;padding:0 0 .3em 18px;border-bottom:1px solid var(--stone-200);
  font-size:clamp(1.6rem,2.6vw,2.1rem);color:var(--stone-900);position:relative;
}
.subsection-h::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:linear-gradient(var(--gold),var(--terracotta))}
.subsection-sub{font-family:var(--sans);font-size:.95rem;color:var(--stone-500);font-weight:500;letter-spacing:.02em;margin:.3em 0 1em 18px;font-style:italic}

/* ===== TARJETAS DE INFORMACION (tres-columnas) ===== */
/* Cuadricula de alturas iguales; cada tarjeta entra escalonada (clase .reveal) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin:1.8em 0}
.tres-columnas{
  position:relative;overflow:hidden;display:flex;flex-direction:column;
  padding:24px 22px 22px;text-align:left;
  background:#fff;
  border:1px solid var(--stone-200);border-radius:14px;box-shadow:var(--shadow-sm);
  font-size:.95rem;line-height:1.65;color:var(--stone-700);
  transition:transform .5s var(--ease-out),box-shadow .5s var(--ease-out),border-color .4s;
}
/* destello calido que cruza la tarjeta */
.tres-columnas::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,transparent 32%,rgba(201,168,120,.2) 50%,transparent 68%);
  transform:translateX(-130%);transition:transform 1s var(--ease-out);
}
.tc-head{position:relative;display:flex;align-items:center;gap:14px;margin-bottom:14px;padding-bottom:16px;perspective:600px}
/* linea dorada que se dibuja */
.tc-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--terracotta));
  transform:scaleX(.3);transform-origin:left;transition:transform .8s var(--ease-out);
}
.tc-head .tc-icon{
  width:64px;height:64px;object-fit:contain;flex:0 0 auto;margin:0;padding:0;border:none;background:#fff;
}
.tc-title{font-family:var(--serif);font-size:1.2rem;font-weight:600;color:var(--stone-900);line-height:1.25;margin:0}
.tc-title::first-letter{text-transform:uppercase}
.tres-columnas .tc-text{margin:0;font-size:.95rem;flex:1}

/* entrada: el icono gira como una moneda y la linea se dibuja */
@keyframes coinIn{from{transform:perspective(500px) rotateY(-180deg) scale(.6);opacity:0}}
@keyframes drawLine{from{transform:scaleX(0)}}
.reveal.in .tc-icon{animation:coinIn 1s var(--ease-out) calc(var(--d,0ms) + .15s) backwards}
.reveal.in .tc-head::after{animation:drawLine 1.1s var(--ease-out) calc(var(--d,0ms) + .3s) backwards}
.tres-columnas:active{transform:scale(.985)}
@media (hover:hover){
  .tres-columnas:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-light)}
  .tres-columnas:hover::after{transform:translateX(130%)}
  .tres-columnas:hover .tc-head::after{transform:scaleX(1)}
  .tres-columnas:hover .tc-icon{transform:rotateY(360deg);transition:transform .9s var(--ease-out)}
}
/* Masonry real con CSS columns: cada foto conserva su proporcion natural,
   sin recortes forzados a un tamano fijo (fotografia propia, resoluciones
   variadas). El orden de lectura visual es por columna, de ahi que el salto
   de foco en el visor se gobierne por el orden de data-gallery, no por el DOM. */
.gallery{column-count:2;column-gap:14px}
.gallery .gitem{
  display:block;break-inside:avoid;margin-bottom:14px;overflow:hidden;border-radius:12px;
  cursor:pointer;position:relative;box-shadow:var(--shadow-sm);background:var(--stone-200);
}
.gallery .gitem img{display:block;width:100%;height:auto;transition:transform .6s}
.gallery .gitem:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.gallery .gitem:active img{transform:scale(1.03)}
@media(min-width:620px){.gallery{column-count:3}}
@media(min-width:960px){.gallery{column-count:4}}

.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(15,12,10,.94);
  display:flex;align-items:center;justify-content:center;padding:40px;
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease-out),visibility 0s .35s;
}
.lightbox.open{opacity:1;visibility:visible;transition-delay:0s}
.lightbox figure{margin:0;display:grid;place-items:center;min-height:120px;touch-action:pan-y}
.lightbox img{max-width:92vw;max-height:84vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.6);opacity:0;transform:scale(.97);transition:opacity .35s var(--ease-out),transform .6s var(--ease-out)}
.lightbox img.ready{opacity:1;transform:none}
.lightbox.broken img{display:none}
.lightbox .msg{margin:0;color:rgba(255,255,255,.75);font-size:.95rem;letter-spacing:.04em}
.lightbox .credit{position:absolute;right:14px;bottom:20px;margin:0;color:rgba(255,255,255,.6);font-size:.75rem;letter-spacing:.06em;background:rgba(0,0,0,.35);padding:4px 10px;border-radius:30px}
.lightbox button{background:none;border:0;color:#fff;cursor:pointer;font-family:var(--sans);line-height:1}
.lightbox .close{position:absolute;top:14px;right:14px;width:52px;height:52px;font-size:2.4rem;opacity:.85}
.lightbox .nav-btn{position:absolute;top:50%;transform:translateY(-50%);width:56px;height:72px;font-size:2.6rem;opacity:.8}
.lightbox .close,.lightbox .nav-btn{transition:opacity .25s}
.lightbox .close:hover,.lightbox .nav-btn:hover{opacity:1}
.lightbox .prev{left:12px}
.lightbox .next{right:12px}
.lightbox .count{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.75);font-size:.82rem;letter-spacing:.22em}
body.lb-open{overflow:hidden}

/* ===== VIDEOS ===== */
.video-grid{display:grid;grid-template-columns:1fr;gap:40px;max-width:960px}
.video{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);background:#000;aspect-ratio:16/9}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ===== CONTACT / APP ===== */
.panel{background:#fff;border-radius:16px;padding:40px;box-shadow:var(--shadow-sm);border:1px solid var(--stone-200)}
.panel h2{margin-bottom:16px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:30px}
.feature{padding:24px;border-radius:12px;background:var(--cream)}
.feature .ic{font-size:1.8rem;color:var(--gold);margin-bottom:10px}
.feature h3{font-size:1.25rem;margin-bottom:6px}
.feature p{font-size:.92rem;color:var(--stone-600);margin:0;overflow-wrap:anywhere}

/* ===== FOOTER ===== */
footer{background:var(--stone-900);color:var(--stone-300);padding:64px 0 30px;margin-top:0}
footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
footer h5{color:#fff;font-family:var(--serif);font-size:1.2rem;margin-bottom:14px}
footer ul{list-style:none}
footer ul li{margin:8px 0}
footer a{color:var(--stone-300)}
footer a:hover{color:var(--gold-light)}
footer .footer-about{margin:0;font-size:.95rem;line-height:1.7;color:var(--stone-300);max-width:38ch}
footer .bottom{border-top:1px solid var(--stone-700);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.88rem;color:var(--stone-400)}
footer .bottom a{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,255,255,.45)}
footer .bottom a:hover{color:var(--gold-light);text-decoration-color:currentColor}
footer .unesco{font-size:.85rem;max-width:420px}

/* ===== REVEAL ===== */
.js .reveal{opacity:0}
.reveal.in{opacity:1;animation:rise .9s var(--ease-out) var(--d,0ms) backwards}
@keyframes rise{from{opacity:0;transform:translateY(28px)}}

/* Entrada escalonada de la cabecera de cada pagina */
.hero .content>*,.page-hero .content>*{animation:rise 1s var(--ease-out) calc(.15s + var(--i,0) * .12s) backwards}
.hero .content>:nth-child(2),.page-hero .content>:nth-child(2){--i:1}
.hero .content>:nth-child(3){--i:2}
.hero .content>:nth-child(4){--i:3}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .site-layout{grid-template-columns:1fr}
  .aside{position:static}
  footer .grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  :root{--nav-h:72px}
  .brand-logo{height:40px}
  .nav-toggle{display:grid;place-items:center;width:48px;height:48px;margin-right:-10px}
  .nav.open{background:rgba(28,25,23,.98)}
  .nav ul{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(28,25,23,.98);padding:8px 18px 22px;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .35s var(--ease-out),transform .35s var(--ease-out),visibility 0s .35s
  }
  .nav.open ul{opacity:1;visibility:visible;transform:none;transition-delay:0s}
  .nav ul a{padding:14px 8px;font-size:1.05rem}
  .nav .lang{justify-content:flex-start;gap:6px;margin-top:10px;padding-top:14px;border-top:1px solid rgba(255,255,255,.14)}
  .nav .lang a{padding:10px 14px;font-size:.85rem}
  .lightbox{padding:16px}
  .lightbox img{max-height:74vh}
  .lightbox .nav-btn{top:auto;bottom:8px;transform:none;height:56px}
  .lightbox .prev{left:8px}
  .lightbox .next{right:8px}
  .lightbox .credit{top:14px;right:14px;bottom:auto}
  section{padding:60px 0}
  .hero .content{padding-top:120px}
}

/* ===== TRANSICION ENTRE PAGINAS Y MOVIMIENTO REDUCIDO ===== */
@media (prefers-reduced-motion:no-preference){
  @view-transition{navigation:auto}
  ::view-transition-old(root),::view-transition-new(root){animation-duration:.4s}
  .nav{view-transition-name:site-nav}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;transition-delay:0s !important;animation-delay:0s !important}
}

/* ===== IMPRESION: mostrar todo el contenido, sin esperar al revelado ===== */
@media print{
  .reveal{opacity:1;animation:none}
}