/* ============================================================
   Bóveda Arquitectura — v2 "Umbral"
   Dirección de arte: la luz y la sombra que proyecta.
   Oballe Studio Web · oballestudio.com
   ============================================================ */

:root{
  --cal:#F7F5F1;        /* cal: el blanco de los muros */
  --sombra:#15191B;     /* la sombra en esta latitud: casi negro, frío */
  --arena:#E3DED4;      /* travertino */
  --piedra:#B9B2A6;     /* filetes y texto secundario */
  --mar:#20403F;        /* marino-pino: foco y acentos, casi nunca */

  --display:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --texto:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;

  --gutter:clamp(1.25rem,4.5vw,4.5rem);
  --estrato:clamp(4.25rem,9vw,9rem);    /* altura del estrato (sección) */
  --max:1560px;
  --medida:62ch;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

body{
  margin:0;
  background:var(--cal);
  color:var(--sombra);
  font-family:var(--texto);
  font-weight:300;
  font-size:clamp(1rem,.96rem + .2vw,1.09rem);
  line-height:1.68;
  letter-spacing:.002em;
  font-synthesis-weight:none;
  -webkit-font-smoothing:antialiased;
}

img,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-underline-offset:.2em;text-decoration-thickness:1px}
a:focus-visible,button:focus-visible,summary:focus-visible,
input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--mar);outline-offset:3px;
}

/* ---------- Tipografía ---------- */
h1,h2,h3{margin:0 0 .5em;font-weight:400}

h1,.h-display{
  font-family:var(--display);
  font-weight:300;
  font-size:clamp(2.75rem,1.35rem + 5.6vw,6.4rem);
  line-height:.96;
  letter-spacing:-.018em;
}
h2{
  font-family:var(--display);
  font-weight:300;
  font-size:clamp(2rem,1.3rem + 2.7vw,3.9rem);
  line-height:1.02;
  letter-spacing:-.014em;
  max-width:18ch;
}
h3{
  font-family:var(--texto);
  font-weight:500;
  font-size:clamp(1.02rem,.98rem + .25vw,1.18rem);
  line-height:1.3;
  letter-spacing:.004em;
}
p{margin:0 0 1.2em;max-width:var(--medida)}
p:last-child{margin-bottom:0}
ul,ol{max-width:var(--medida)}
strong{font-weight:500}

.lede{
  font-family:var(--display);
  font-size:clamp(1.35rem,1.05rem + 1.1vw,2rem);
  line-height:1.26;
  letter-spacing:-.008em;
  font-weight:300;
  color:var(--sombra);
  max-width:28ch;
  margin:0 0 2.4rem;
}
.sec--sombra .lede{color:var(--cal)}

.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- Navegación ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:color-mix(in srgb,var(--cal) 88%,transparent);
  backdrop-filter:saturate(130%) blur(10px);
  border-bottom:1px solid var(--piedra);
}
.nav__in{
  max-width:var(--max);margin-inline:auto;
  padding:.95rem var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
}
.nav__logo{
  display:block;color:var(--sombra);
  width:clamp(142px,14.5vw,184px);
  flex:0 0 auto;
}
.nav__logo svg{display:block;width:100%;height:auto}
.nav__links{
  display:flex;align-items:baseline;gap:clamp(.9rem,1.7vw,1.9rem);
  list-style:none;margin:0;padding:0;font-size:.91rem;
}
.nav__links a{text-decoration:none;padding-block:.3rem;
  border-bottom:1px solid transparent;transition:border-color .3s ease}
.nav__links a:hover,.nav__links a[aria-current="page"]{border-bottom-color:var(--sombra)}
.nav__tel{white-space:nowrap}
.solo-movil{display:none}
.nav__lang{font-size:.78rem;letter-spacing:.16em;color:var(--piedra);text-decoration:none}
.nav__lang:hover{color:var(--sombra)}
.nav__toggle{display:none;background:none;border:0;padding:.4rem 0;
  font-family:var(--texto);font-size:.93rem;color:inherit;cursor:pointer;
  border-bottom:1px solid var(--sombra)}

@media (max-width:980px){
  .nav__in{align-items:center}
  .nav__toggle{display:block}
  .nav__links{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--cal);border-bottom:1px solid var(--piedra);
    padding:0 var(--gutter) 1.4rem;font-size:1.05rem;
  }
  .nav__links.is-open{display:flex}
  .solo-movil{display:block}
  .nav__links li{width:100%;border-top:1px solid var(--arena)}
  .nav__links a{display:block;padding:.95rem 0;border:0}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--sombra);color:var(--cal);overflow:hidden}
.hero__media{position:relative;height:clamp(460px,90svh,1000px)}
.hero--int .hero__media{height:clamp(340px,62svh,680px)}
.hero__media img,.hero__media video{width:100%;height:100%;object-fit:cover;
  filter:brightness(.72) saturate(.94)}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(183deg,
    rgba(21,25,27,.34) 0%,
    rgba(21,25,27,.08) 28%,
    rgba(21,25,27,.46) 60%,
    rgba(21,25,27,.86) 100%);
}
.hero__txt{
  position:absolute;z-index:2;left:0;right:0;bottom:clamp(2.2rem,5vw,4.2rem);
  max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter);
}
.hero__txt h1{color:var(--cal);max-width:15ch;margin-bottom:.34em;
  text-shadow:0 2px 40px rgba(21,25,27,.5)}
.hero--int .hero__txt h1{max-width:17ch;
  font-size:clamp(2.4rem,1.3rem + 4.2vw,5.2rem)}
/* el horizonte: el filete que estructura todo el sitio */
.hero__horizonte{
  height:1px;background:rgba(247,245,241,.42);margin-bottom:1.4rem;
  transform-origin:left;
}
.hero__txt p{color:rgba(247,245,241,.9);max-width:46ch;margin:0;font-size:1.03rem;
  text-shadow:0 1px 24px rgba(21,25,27,.5)}

/* Un único momento orquestado: la entrada del hero */
@media (prefers-reduced-motion:no-preference){
  .hero__txt h1{
    opacity:0;animation:subir 1.15s cubic-bezier(.16,.84,.26,1) .15s forwards;
  }
  .hero__horizonte{transform:scaleX(0);animation:trazar 1.1s cubic-bezier(.16,.84,.26,1) .75s forwards}
  .hero__txt p{opacity:0;animation:aparecer .9s ease 1.1s forwards}
  @keyframes subir{from{opacity:0;transform:translateY(.42em)}to{opacity:1;transform:none}}
  @keyframes trazar{to{transform:scaleX(1)}}
  @keyframes aparecer{to{opacity:1}}
}

/* ---------- Estratos (secciones) ---------- */
.sec{padding-block:var(--estrato);border-top:1px solid var(--piedra)}
.sec:first-of-type{border-top:0}
.sec--arena{background:var(--arena);border-top-color:var(--arena)}
.sec--sombra{background:var(--sombra);color:var(--cal);border-top-color:var(--sombra)}
.sec--sombra h2,.sec--sombra h3{color:var(--cal)}
.sec--sombra .apunte{color:rgba(247,245,241,.62)}
.hero + .sec{border-top:0}

/* Retícula asimétrica: texto a la izquierda, apoyo a la derecha */
.retic{display:grid;gap:clamp(2rem,4vw,5rem);grid-template-columns:1fr}
@media (min-width:1000px){
  .retic{grid-template-columns:minmax(0,7fr) minmax(0,4fr);align-items:start}
  .retic--inv{grid-template-columns:minmax(0,4fr) minmax(0,7fr)}
}
.apunte{font-size:.92rem;color:#6E6960;max-width:34ch}

/* Encabezado de estrato: h2 + línea de apoyo */
.cab{margin-bottom:clamp(2.4rem,5vw,4rem)}
@media (min-width:1000px){
  .cab{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);
       gap:clamp(2rem,4vw,5rem);align-items:end}
  .cab h2{margin-bottom:0}
  .cab .lede{margin-bottom:.2rem}
}

/* ---------- Bloques (sin tarjetas: solo filetes) ---------- */
.bloques{display:grid;grid-template-columns:1fr;gap:0}
@media (min-width:760px){.bloques{grid-template-columns:repeat(2,1fr);column-gap:clamp(2rem,4vw,5rem)}}
.bloque{padding:1.9rem 0;border-top:1px solid var(--piedra)}
.sec--arena .bloque{border-top-color:#CDC6B9}
.sec--sombra .bloque{border-top-color:rgba(247,245,241,.22)}
.bloque h3{margin-bottom:.55em}
.bloque p{font-size:.97rem;color:#6E6960;max-width:46ch}
.sec--sombra .bloque p{color:rgba(247,245,241,.7)}
.bloque a{text-decoration:none;border-bottom:1px solid var(--piedra)}
.bloque a:hover{border-bottom-color:currentColor}

/* ---------- Proceso: sí es una secuencia ---------- */
.proceso{list-style:none;margin:0;padding:0;max-width:none;counter-reset:paso}
.proceso li{
  display:grid;grid-template-columns:2.6rem 1fr;gap:clamp(1rem,2vw,2.5rem);
  padding:1.7rem 0;border-top:1px solid var(--piedra);align-items:start;
}
.sec--arena .proceso li{border-top-color:#CDC6B9}
.proceso li:last-child{border-bottom:1px solid var(--piedra)}
.sec--arena .proceso li:last-child{border-bottom-color:#CDC6B9}
.proceso .n{font-family:var(--display);font-size:1.5rem;line-height:1;color:var(--piedra);padding-top:.1rem}
.proceso h3{margin-bottom:.35em}
.proceso p{font-size:.97rem;color:#6E6960;max-width:58ch;margin:0}
@media (min-width:1000px){
  .proceso li{grid-template-columns:2.6rem minmax(0,22ch) minmax(0,1fr)}
  .proceso h3{margin:0}
}

/* ---------- Índice editorial de proyectos ---------- */
.indice{display:grid;gap:clamp(3rem,6vw,6.5rem)}
.obra{display:grid;gap:clamp(1.2rem,3vw,3rem);text-decoration:none;align-items:end}
.obra__pie{border-top:1px solid var(--piedra);padding-top:1.4rem}
.sec--arena .obra__pie{border-top-color:#CDC6B9}
@media (min-width:900px){
  .obra{grid-template-columns:minmax(0,7fr) minmax(0,4fr)}
  .obra:nth-child(even) .obra__img{order:2}
  .obra:nth-child(even){grid-template-columns:minmax(0,4fr) minmax(0,7fr)}
}
.obra__img{overflow:hidden;background:var(--arena)}
.obra__img img{width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform 1.3s cubic-bezier(.16,.84,.26,1)}
.obra:hover .obra__img img{transform:scale(1.035)}
.obra h3{font-family:var(--display);font-weight:300;
  font-size:clamp(1.7rem,1.2rem + 1.6vw,2.6rem);line-height:1.05;
  letter-spacing:-.012em;margin-bottom:.9rem}
.obra:hover h3{text-decoration:underline;text-decoration-thickness:1px}
.obra__meta{display:flex;flex-wrap:wrap;gap:.35rem 2.2rem;
  font-size:.85rem;color:#6E6960;list-style:none;margin:0;padding:0}
.obra__meta li{white-space:nowrap}

/* ---------- Página de proyecto: figuras a sangre ---------- */
.figura{margin:0;background:var(--arena)}
.figura img{width:100%;object-fit:cover}
.figura--alta img{aspect-ratio:3/4;max-height:92svh}
.figura--ancha img{aspect-ratio:16/9;max-height:92svh}
.figura--sangre{margin-inline:calc(50% - 50vw);width:100vw}
.par{display:grid;grid-template-columns:1fr;gap:clamp(.8rem,1.6vw,1.4rem)}
@media (min-width:760px){.par{grid-template-columns:1fr 1fr}}
.texto-obra{max-width:var(--medida)}
.texto-obra p + p{margin-top:0}

/* ---------- Ficha técnica ---------- */
.ficha{border-top:1px solid var(--sombra);margin-top:0}
.sec--arena .ficha{border-top-color:var(--sombra)}
.ficha dl{display:grid;grid-template-columns:1fr;margin:0}
@media (min-width:640px){.ficha dl{grid-template-columns:repeat(2,1fr);column-gap:clamp(2rem,4vw,4.5rem)}}
.ficha .fila{display:flex;justify-content:space-between;align-items:baseline;
  gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--piedra)}
.sec--arena .ficha .fila{border-bottom-color:#CDC6B9}
.ficha dt{font-size:.8rem;letter-spacing:.07em;color:#6E6960}
.ficha dd{margin:0;font-size:.95rem;text-align:right}

/* Dato pendiente de confirmar por el cliente */
.pend{background:#FBEFA8;box-shadow:0 1px 0 #A98A00;padding:0 .3em;font-size:.86em}

/* ---------- Preguntas ---------- */
.faq{border-top:1px solid var(--piedra);max-width:none}
.sec--arena .faq{border-top-color:#CDC6B9}
.faq details{border-bottom:1px solid var(--piedra)}
.sec--arena .faq details{border-bottom-color:#CDC6B9}
.faq summary{
  cursor:pointer;list-style:none;padding:1.45rem 3rem 1.45rem 0;position:relative;
  font-family:var(--display);font-size:clamp(1.2rem,1.05rem + .55vw,1.65rem);
  font-weight:300;line-height:1.2;letter-spacing:-.008em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:.35rem;top:50%;width:14px;height:1px;
  background:var(--sombra);
}
.faq summary::before{
  content:"";position:absolute;right:calc(.35rem + 6.5px);top:calc(50% - 6.5px);
  width:1px;height:14px;background:var(--sombra);
  transition:transform .3s ease,opacity .3s ease;
}
.faq details[open] summary::before{transform:rotate(90deg);opacity:0}
.faq .resp{padding:0 clamp(0rem,6vw,8rem) 1.6rem 0}
.faq .resp p{max-width:68ch}

/* ---------- Botones ---------- */
.btn{
  display:inline-block;font-family:var(--texto);font-size:.92rem;letter-spacing:.03em;
  padding:1rem 2.3rem;text-decoration:none;
  background:var(--sombra);color:var(--cal);border:1px solid var(--sombra);
  transition:background .3s ease,color .3s ease;
}
.btn:hover{background:transparent;color:var(--sombra)}
.btn--linea{background:transparent;color:var(--sombra)}
.btn--linea:hover{background:var(--sombra);color:var(--cal)}
.sec--sombra .btn{background:var(--cal);color:var(--sombra);border-color:var(--cal)}
.sec--sombra .btn:hover{background:transparent;color:var(--cal)}
.sec--sombra .btn--linea{background:transparent;color:var(--cal)}
.sec--sombra .btn--linea:hover{background:var(--cal);color:var(--sombra)}
.botones{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.4rem}

/* ---------- Enlaces relacionados ---------- */
.relacionados{margin-top:3rem;padding-top:1.4rem;border-top:1px solid var(--piedra);font-size:.95rem}
.sec--arena .relacionados{border-top-color:#CDC6B9}
.relacionados ul{list-style:none;padding:0;margin:.7rem 0 0;
  display:flex;flex-wrap:wrap;gap:.5rem 2rem}

/* ---------- Contacto ---------- */
.contacto{display:grid;gap:clamp(2.5rem,5vw,6rem);grid-template-columns:1fr}
@media (min-width:980px){.contacto{grid-template-columns:minmax(0,6fr) minmax(0,5fr)}}
.form label{display:block;font-size:.8rem;letter-spacing:.07em;color:#6E6960;margin-bottom:.45rem}
.form input,.form select,.form textarea{
  width:100%;padding:.9rem 0;margin-bottom:1.7rem;
  border:0;border-bottom:1px solid var(--piedra);border-radius:0;
  background:transparent;color:var(--sombra);
  font-family:var(--texto);font-size:1rem;font-weight:300;
}
.form select{padding-inline-end:1rem}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:0;border-bottom-color:var(--mar);border-bottom-width:2px;margin-bottom:calc(1.7rem - 1px)}
.form textarea{min-height:140px;resize:vertical}
.form .acepto{display:flex;gap:.75rem;align-items:flex-start;font-size:.88rem;
  color:#6E6960;margin-bottom:2rem;max-width:54ch}
.form .acepto input{width:auto;margin:.3rem 0 0;border-bottom:0}
.datos p{margin-bottom:1.7rem}
.datos a{text-decoration:none;border-bottom:1px solid var(--piedra)}
.datos a:hover{border-bottom-color:var(--sombra)}
.mapa{margin-top:1.5rem;filter:grayscale(1) contrast(.92);border:1px solid var(--piedra)}
.mapa iframe{display:block;width:100%;height:330px;border:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- Pie ---------- */
.pie{background:var(--sombra);color:rgba(247,245,241,.72);font-size:.92rem;
  padding-block:clamp(3.5rem,7vw,6rem) 2rem}
.pie a{color:rgba(247,245,241,.72);text-decoration:none}
.pie a:hover{color:var(--cal)}
.pie__grid{display:grid;gap:2.6rem;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.pie h4{color:var(--cal);font-size:.74rem;letter-spacing:.2em;font-weight:400;
  margin:0 0 1.3rem;font-family:var(--texto)}
.pie ul{list-style:none;margin:0;padding:0}
.pie li{margin-bottom:.6rem}
.pie__legal{margin-top:4rem;padding-top:1.5rem;border-top:1px solid rgba(247,245,241,.16);
  display:flex;flex-wrap:wrap;gap:.7rem 2rem;justify-content:space-between;font-size:.82rem}
.pie__legal a{margin-right:1.6rem}

/* ---------- Varios ---------- */
.saltar{position:absolute;left:-9999px}
.saltar:focus{left:var(--gutter);top:.6rem;z-index:99;background:var(--sombra);
  color:var(--cal);padding:.75rem 1.3rem}
.migas{font-size:.8rem;color:#6E6960;padding-top:1.6rem}
.migas ol{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;margin:0;padding:0;max-width:none}
.migas li + li::before{content:"/";margin-right:.5rem;color:var(--piedra)}
.migas a{text-decoration:none;border-bottom:1px solid var(--piedra)}
.legal h2{font-size:1.3rem;font-family:var(--texto);font-weight:500;
  margin-top:2.6rem;max-width:none;letter-spacing:0}
.legal{max-width:72ch}
.legal h1{font-size:clamp(2.2rem,1.6rem + 2vw,3.4rem);margin-bottom:.6em}

/* Artículos del diario */
.articulo{max-width:68ch}
.articulo h2{font-size:clamp(1.6rem,1.25rem + 1.3vw,2.4rem);max-width:24ch;
  margin-top:2.8rem}
.articulo h3{margin-top:2rem}
.articulo ul{margin:0 0 1.2em;padding-left:1.1rem}
.articulo li{margin-bottom:.5em}
.articulo .meta{font-size:.84rem;color:#6E6960;margin-bottom:2.5rem}

/* Transición entre páginas donde el navegador la soporta */
@view-transition{navigation:auto}
@media (prefers-reduced-motion:reduce){
  @view-transition{navigation:none}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* Lightbox de galería */
dialog.lupa{border:0;padding:0;max-width:100vw;max-height:100vh;width:100vw;height:100vh;
  background:rgba(21,25,27,.96)}
dialog.lupa::backdrop{background:rgba(21,25,27,.96)}
dialog.lupa img{width:100%;height:100%;object-fit:contain;padding:clamp(1rem,4vw,4rem)}
dialog.lupa button{position:absolute;top:1.2rem;right:1.4rem;background:none;border:0;
  color:var(--cal);font-family:var(--texto);font-size:.9rem;cursor:pointer;
  letter-spacing:.08em;padding:.5rem}
.figura button.ampliar{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in}

/* ---------- WhatsApp flotante ---------- */
.wa{
  position:fixed;z-index:70;
  right:clamp(1rem,2.2vw,1.9rem);
  bottom:calc(clamp(1rem,2.2vw,1.9rem) + env(safe-area-inset-bottom,0px));
  width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;
  background:#25D366;color:#fff;text-decoration:none;
  box-shadow:0 2px 14px rgba(21,25,27,.22);
  transition:transform .25s ease,box-shadow .25s ease;
}
.wa:hover,.wa:focus-visible{transform:translateY(-2px);box-shadow:0 6px 20px rgba(21,25,27,.28)}
.wa:focus-visible{outline:2px solid var(--sombra);outline-offset:3px}
@media print{.wa{display:none}}