/* ══════════════════════════════════════════════════════════════
   Odontología Arana — v2
   Prueba cromática: base blanca predominante con pasteles naturales,
   gris taupe y acentos dorados.
   ══════════════════════════════════════════════════════════════ */

:root{
  /* Base clara + acentos pastel naturales */
  --crema:#FAFAF8;
  --blanco-calido:#FFFFFF;
  --pastel-salvia:#E0D8D0;
  --pastel-celeste:#F0F0F0;
  --pastel-rosa:#D0C8C0;
  --dorado:#A88860;
  --dorado-20:rgba(168,136,96,.20);
  --dorado-35:rgba(168,136,96,.35);
  --petroleo:#7C746A;
  --gris:#5F5C56;

  /* Derivados */
  --petroleo-12:rgba(124,116,106,.12);
  --petroleo-20:rgba(124,116,106,.20);
  --petroleo-45:rgba(124,116,106,.45);
  --petroleo-70:rgba(124,116,106,.70);

  --display:'Alexandria',system-ui,sans-serif;
  --texto:'Lato',system-ui,sans-serif;

  --col:1180px;
  --r:18px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--crema);
  color:var(--gris);
  font-family:var(--texto);
  font-size:clamp(1rem,.96rem + .2vw,1.08rem);
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto}

h1,h2,h3{
  font-family:var(--display);
  color:var(--petroleo);
  line-height:1.08;
  letter-spacing:-.02em;
  margin:0;
  font-weight:700;
}

p{margin:0 0 1.1em}
a{color:inherit}

.wrap{width:min(var(--col),92vw);margin-inline:auto}
.centrar{text-align:center}

/* Los ítems de grilla no deben crecer con el tamaño intrínseco de sus
   imágenes: sin esto, la portada de 1929px estira su columna. */
.hero-grid>*,
.caso-mes-grid>*,
.nosotros-grid>*,
.faq-grid>*,
.franja-grid>*,
.grilla-servicios>*,
.pasos>*,
.sedes>*{min-width:0}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--petroleo);color:var(--crema);
  padding:.8rem 1.2rem;border-radius:0 0 var(--r) 0;
}
.skip-link:focus{left:0}

:focus-visible{
  outline:2px solid var(--petroleo);
  outline-offset:3px;
  border-radius:4px;
}

/* ── Elemento firma: el trazo continuo ──────────────────────────
   Un solo gesto, como la "A" del isologo, que atraviesa la página
   y se va dibujando con el scroll. Cuarenta años sin cortes.      */
.spine{
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:min(var(--col),92vw);
  height:100%;
  color:rgba(124,116,106,.08);
  z-index:0;
  pointer-events:none;
}
.spine path{
  stroke-dasharray:var(--largo,4000);
  stroke-dashoffset:var(--offset,4000);
}

main,.cabecera,.pie{position:relative;z-index:1}

/* ── Cintillo: caps espaciadas, el mismo gesto que "ODONTOLOGÍA"
      en el imagotipo ───────────────────────────────────────────── */
.cintillo{
  font-family:var(--texto);
  font-size:.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.28em;
  color:var(--dorado);
  margin:0 0 1.4rem;
}

.titulo{font-size:clamp(2rem,1.3rem + 2.6vw,3.1rem)}

.entrada{
  font-size:clamp(1.08rem,1rem + .35vw,1.25rem);
  line-height:1.65;
  color:var(--gris);
  max-width:52ch;
}

/* ── Botones ────────────────────────────────────────────────── */
.boton{
  --bg:transparent;--fg:var(--petroleo);--bd:var(--petroleo);
  display:inline-flex;align-items:center;justify-content:center;
  gap:.5rem;
  background:var(--bg);color:var(--fg);
  border:1px solid var(--bd);
  border-radius:999px;
  padding:.95rem 1.9rem;
  font-family:var(--display);
  font-size:.92rem;
  font-weight:500;
  letter-spacing:.01em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.boton:hover{transform:translateY(-2px)}
.boton-lleno{--bg:var(--petroleo);--fg:var(--crema)}
.boton-lleno:hover{--bg:#6B4A38;--bd:#6B4A38}
.boton-linea:hover{--bg:var(--pastel-salvia);--fg:var(--petroleo)}
.boton-linea{--bd:var(--dorado);--fg:var(--petroleo)}
.boton-chico{padding:.62rem 1.3rem;font-size:.84rem}
.boton-ancho{width:100%}

/* ── Cabecera ───────────────────────────────────────────────── */
.cabecera{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.cabecera:not(.fija) .marca-logo{color:var(--dorado)}
.cabecera:not(.fija) .nav a{color:var(--petroleo)}
.cabecera:not(.fija) .nav a::after{background:var(--petroleo)}
.cabecera:not(.fija) .boton{background:var(--crema);color:var(--petroleo)}
.cabecera.fija{
  border-bottom-color:var(--petroleo-12);
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
}
.cabecera-fila{
  display:flex;align-items:center;justify-content:space-between;
  gap:1.5rem;
  padding:1rem 0;
}
/* El sprite solo aloja el <symbol>: no se dibuja. */
.sprite{display:none}

.marca{display:block}
.marca-logo{
  display:block;
  width:172px;
  aspect-ratio:4512/1324;
  color:var(--dorado);
  fill:currentColor;
}

.nav{display:flex;gap:2rem;margin-left:auto}
.nav a{
  font-family:var(--display);
  font-size:.9rem;
  font-weight:400;
  color:var(--petroleo);
  text-decoration:none;
  position:relative;
  padding-bottom:2px;
}
.nav a::after{
  content:'';
  position:absolute;left:0;bottom:0;
  width:100%;height:1px;
  background:var(--petroleo);
  transform:scaleX(0);transform-origin:right;
  transition:transform .35s var(--ease);
}
.nav a:hover::after{transform:scaleX(1);transform-origin:left}

.nav-toggle{
  display:none;
  flex-direction:column;gap:5px;
  background:none;border:0;padding:.4rem;cursor:pointer;
}
.nav-toggle span{
  display:block;width:24px;height:1.5px;
  background:var(--petroleo);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ── Hero ───────────────────────────────────────────────────── */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  align-items:center;
  overflow:hidden;
  padding:clamp(6.8rem,10vw,8.6rem) 0 clamp(2.8rem,5vw,4.8rem);
  background:
    linear-gradient(90deg,rgba(168,136,96,.78),rgba(168,136,96,.78)) top left/100% 10px no-repeat,
    radial-gradient(ellipse at 8% 74%,rgba(168,136,96,.08) 0 34%,transparent 35%),
    radial-gradient(ellipse at 88% 52%,rgba(168,136,96,.12) 0 28%,transparent 62%),
    linear-gradient(90deg,#fff 0%,#fff 50%,#FAF7F2 100%);
}

.hero::before{
  content:'';
  position:absolute;
  left:0;
  right:0;
  top:clamp(5.6rem,8vw,7rem);
  height:1px;
  background:linear-gradient(90deg,transparent 0 7%,var(--dorado-35) 7% 49%,transparent 49% 53%,var(--dorado-35) 53% 94%,transparent 94%);
  z-index:1;
}

.hero-marca-agua{
  position:absolute;
  right:-.1em;
  top:5%;
  writing-mode:vertical-rl;
  font-family:var(--display);
  font-size:clamp(8rem,17vw,17rem);
  font-weight:200;
  line-height:.8;
  color:rgba(168,136,96,.075);
  pointer-events:none;
}

.hero-contenido{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(18rem,.78fr) minmax(31rem,1.38fr);
  gap:clamp(1rem,2.8vw,3.6rem);
  align-items:center;
  isolation:isolate;
}

.hero-texto{
  position:relative;
  z-index:3;
  padding:clamp(1rem,2vw,2rem) 0;
}

.hero-texto::before{
  content:'';
  position:absolute;
  left:-7vw;
  top:34%;
  width:min(58vw,620px);
  height:clamp(5rem,10vw,8rem);
  border:1px solid rgba(168,136,96,.16);
  border-left:0;
  border-radius:0 999px 999px 0;
  transform:translateY(-50%);
  z-index:-1;
}

.hero-titulo{
  font-size:clamp(3rem,1.4rem + 5.2vw,6.15rem);
  line-height:.86;
  margin:0 0 1.7rem;
  display:flex;flex-direction:column;
  color:var(--dorado);
  text-shadow:0 14px 34px rgba(255,255,255,.72);
}
.hero-titulo-1{font-weight:200;letter-spacing:-.035em}
.hero-titulo-2{font-weight:500;letter-spacing:-.045em;color:#8F7F6C}

.hero-bajada{
  font-size:clamp(1.04rem,.98rem + .25vw,1.2rem);
  max-width:34ch;
  color:#7C746A;
  margin-bottom:2.2rem;
  text-shadow:none;
}

.hero .cintillo{color:#A88860}

.hero-acciones{display:flex;flex-wrap:wrap;gap:.9rem}
.hero-cta-casos{
  background:transparent !important;
  color:var(--dorado) !important;
  border-color:rgba(168,136,96,.45) !important;
  font-weight:600;
  box-shadow:none;
}
.hero-cta-casos:hover{
  background:rgba(168,136,96,.08) !important;
  border-color:rgba(168,136,96,.78) !important;
  box-shadow:none;
}

.hero-visual{
  position:relative;
  z-index:1;
  min-height:clamp(31rem,50vw,44rem);
  display:flex;
  align-items:center;
  margin-right:calc((100vw - min(100vw - 2rem,var(--max)))/-2);
  isolation:isolate;
  pointer-events:none;
}

.hero-foto{
  position:relative;
  margin:0;
  overflow:hidden;
  background:transparent;
  border:0;
  box-shadow:none;
}

.hero-foto>img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:sepia(.08) saturate(.86) contrast(.96) brightness(1.03);
}

.hero-foto-principal{
  width:min(calc(100% + clamp(15rem,29vw,30rem)),1440px);
  aspect-ratio:1568/1003;
  margin-left:clamp(-18rem,-17vw,-8.5rem);
  -webkit-mask-image:
    linear-gradient(90deg,transparent 0%,#000 10%,#000 86%,transparent 100%),
    linear-gradient(180deg,transparent 0%,#000 9%,#000 90%,transparent 100%);
  -webkit-mask-composite:source-in;
  mask-image:
    linear-gradient(90deg,transparent 0%,#000 10%,#000 86%,transparent 100%),
    linear-gradient(180deg,transparent 0%,#000 9%,#000 90%,transparent 100%);
  mask-composite:intersect;
}
.hero-foto-principal::before,
.hero-foto-principal::after{
  content:'';
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
}
.hero-foto-principal::before{
  background:
    linear-gradient(90deg,#fff 0%,rgba(255,255,255,.84) 8%,rgba(255,255,255,.24) 22%,transparent 44%),
    linear-gradient(180deg,#fff 0%,transparent 16%,transparent 82%,#FAF7F2 100%);
}
.hero-foto-principal::after{
  background:linear-gradient(90deg,transparent 56%,rgba(250,247,242,.14) 76%,#FAF7F2 100%);
  mix-blend-mode:screen;
}
.hero-foto-principal>img{
  object-position:48% 50%;
}

/* ── Caso del mes ───────────────────────────────────────────── */
.caso-mes{
  background:linear-gradient(180deg,var(--crema) 0%,var(--pastel-celeste) 100%);
  padding:clamp(3.8rem,7vw,6.6rem) 0;
  border-bottom:1px solid var(--petroleo-12);
}
.caso-mes-grid{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:clamp(2rem,5vw,5rem);
  align-items:center;
}
.caso-mes-texto .titulo{
  margin-bottom:1.2rem;
  max-width:11ch;
}
.caso-mes-texto .entrada{margin-bottom:1.6rem}
.caso-mes-datos{
  display:flex;
  flex-wrap:wrap;
  gap:.55rem;
  margin:0 0 2rem;
}
.caso-mes-datos span{
  display:inline-flex;
  align-items:center;
  min-height:2.2rem;
  border:1px solid var(--petroleo-20);
  border-radius:999px;
  padding:.45rem .85rem;
  font-family:var(--display);
  font-size:.78rem;
  font-weight:500;
  color:var(--petroleo);
  background:rgba(255,255,255,.78);
  box-shadow:inset 0 0 0 1px var(--dorado-20);
}
.caso-mes-acciones{display:flex;flex-wrap:wrap;gap:.85rem}
.caso-mes-media{
  margin:0;
  padding:clamp(.8rem,1.8vw,1.4rem);
  border:1px solid var(--petroleo-12);
  border-radius:var(--r);
  background:rgba(255,255,255,.72);
}
.caso-mes-fotos{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(.75rem,1.5vw,1rem);
}
.caso-mes-foto{
  position:relative;
  overflow:hidden;
  border-radius:calc(var(--r) - 6px);
  background:var(--petroleo-12);
}
.caso-mes-foto img{
  width:100%;
  aspect-ratio:1;
  object-fit:cover;
}
.caso-mes-foto span{
  position:absolute;
  left:.85rem;
  bottom:.85rem;
  padding:.34rem .72rem;
  border-radius:999px;
  background:rgba(124,116,106,.82);
  color:var(--crema);
  font-family:var(--display);
  font-size:.68rem;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.caso-mes-media figcaption{
  margin:.9rem 0 0;
  font-size:.82rem;
  line-height:1.45;
  color:var(--petroleo-70);
}

/* ── Franja de confianza ────────────────────────────────────── */
.franja{
  background:var(--pastel-salvia);
  color:var(--petroleo);
  padding:clamp(2.6rem,4vw,3.6rem) 0;
}
.franja-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:2rem;
}
.dato{
  display:flex;align-items:baseline;gap:1rem;
  padding-left:1.6rem;
  border-left:1px solid rgba(124,116,106,.16);
}
.franja-grid .dato:first-child{border-left:0;padding-left:0}
.dato-n{
  font-family:var(--display);
  font-size:clamp(2.4rem,1.6rem + 2.4vw,3.6rem);
  font-weight:200;
  line-height:1;
  color:var(--dorado);
  letter-spacing:-.03em;
}
.dato-l{
  font-size:.9rem;
  line-height:1.45;
  color:var(--petroleo-70);
  max-width:20ch;
}

/* ── Secciones ──────────────────────────────────────────────── */
.seccion{padding:clamp(4.5rem,8vw,8rem) 0}
.seccion-head{margin-bottom:clamp(2.5rem,4vw,4rem)}
.seccion-head .titulo{margin-bottom:1.2rem}
.centrada{text-align:center}
.centrada .entrada{margin-inline:auto}

/* ── Nosotros ───────────────────────────────────────────────── */
.nosotros-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(2.5rem,5vw,5rem);
  align-items:center;
}
.nosotros-texto .titulo{margin-bottom:1.4rem}
.nosotros-texto .boton{margin-top:1rem}
.nosotros-media{margin:0}
.nosotros-media img{
  width:100%;
  border-radius:var(--r);
  aspect-ratio:5/4;
  object-fit:cover;
}
.nosotros-media figcaption{
  margin-top:.9rem;
  font-size:.85rem;
  color:var(--petroleo-70);
  letter-spacing:.01em;
}

/* ── Servicios ──────────────────────────────────────────────── */
.grilla-servicios{
  list-style:none;margin:0;padding:0;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:rgba(124,116,106,.10);
  border:1px solid var(--petroleo-12);
  border-radius:var(--r);
  overflow:hidden;
}
.grilla-servicios>li{background:var(--blanco-calido)}

.servicio{
  height:100%;
  background:var(--blanco-calido);
  transition:background .35s var(--ease),color .35s var(--ease);
}
.servicio summary{
  list-style:none;
  cursor:pointer;
  padding:2.2rem 3.4rem 2.4rem 1.9rem;
  position:relative;
}
.servicio summary::-webkit-details-marker{display:none}
.servicio h3{
  font-size:1.18rem;
  font-weight:500;
  margin-bottom:.7rem;
  transition:color .35s var(--ease);
}
.servicio-resumen{margin:0;font-size:.96rem;line-height:1.6}

/* El mismo signo + de dos trazos que en las preguntas frecuentes */
.servicio summary::after,
.servicio summary::before{
  content:'';
  position:absolute;
  top:2.75rem;
  background:var(--petroleo);
  transition:transform .3s var(--ease),opacity .3s var(--ease),background .35s var(--ease);
}
/* Trazo horizontal, y el vertical centrado sobre él */
.servicio summary::after{right:1.9rem;width:13px;height:1px;margin-top:6px}
.servicio summary::before{right:calc(1.9rem + 6px);width:1px;height:13px}
.servicio[open] summary::before{transform:rotate(90deg);opacity:0}

.servicio-detalle{
  padding:0 1.9rem 2.4rem;
  font-size:.94rem;
}
.servicio-detalle p{margin:0 0 1rem;line-height:1.65}
.servicio-detalle ul{
  margin:0 0 1.2rem;
  padding:0;
  list-style:none;
}
.servicio-detalle li{
  position:relative;
  padding-left:1.1rem;
  margin-bottom:.4rem;
  line-height:1.5;
}
/* Un nodo, como los del recurso gráfico */
.servicio-detalle li::before{
  content:'';
  position:absolute;left:0;top:.62em;
  width:5px;height:5px;
  border-radius:999px;
  background:var(--petroleo-45);
}
.servicio-tiempo{
  margin:0;
  padding-top:1rem;
  border-top:1px solid var(--petroleo-12);
  font-size:.85rem;
  color:var(--petroleo-70);
}

/* Abierto o con el mouse encima, la tarjeta se invierte */
.servicio:hover,
.servicio[open]{background:var(--pastel-salvia);color:var(--petroleo-70)}
.servicio:hover h3,
.servicio[open] h3{color:var(--petroleo)}
.servicio:hover summary::after,
.servicio:hover summary::before,
.servicio[open] summary::after,
.servicio[open] summary::before{background:var(--petroleo)}
.servicio[open] .servicio-detalle li::before{background:var(--petroleo-45)}
.servicio[open] .servicio-tiempo{
  border-top-color:var(--petroleo-12);
  color:var(--petroleo-70);
}

/* ── Casos: comparador antes/después ────────────────────────── */
.comparador{
  position:relative;
  margin:0 auto;
  max-width:900px;
  border-radius:var(--r);
  overflow:hidden;
  user-select:none;
  isolation:isolate;
}
.comparador{--pos:50%}
.cmp-img{width:100%;display:block;pointer-events:none}
/* Las dos fotos ocupan exactamente el mismo rectángulo; solo cambia el recorte. */
.cmp-antes{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  clip-path:inset(0 calc(100% - var(--pos)) 0 0);
}
.cmp-linea{
  position:absolute;top:0;bottom:0;left:var(--pos);
  width:2px;
  background:var(--crema);
  transform:translateX(-1px);
}
.cmp-handle{
  position:absolute;top:50%;left:var(--pos);
  width:46px;height:46px;
  transform:translate(-50%,-50%);
  border-radius:999px;
  background:var(--crema);
  color:var(--petroleo);
  display:grid;place-items:center;
  box-shadow:0 4px 18px rgba(124,116,106,.25);
  pointer-events:none;
}
.cmp-range{
  position:absolute;inset:0;
  width:100%;height:100%;
  margin:0;opacity:0;cursor:ew-resize;
  -webkit-appearance:none;appearance:none;background:none;
}
.cmp-range::-webkit-slider-thumb{-webkit-appearance:none;width:46px;height:100%;cursor:ew-resize}
.cmp-range:focus-visible{opacity:1;outline-offset:-3px}
.cmp-tag{
  position:absolute;top:1rem;
  font-family:var(--display);
  font-size:.68rem;font-weight:500;
  text-transform:uppercase;letter-spacing:.2em;
  padding:.4rem .85rem;
  border-radius:999px;
  background:rgba(124,116,106,.75);
  color:var(--crema);
  backdrop-filter:blur(4px);
  transition:opacity .2s ease;
  pointer-events:none;
}
.cmp-tag-antes{left:1rem}
.cmp-tag-despues{right:1rem}

.casos-nota{
  text-align:center;
  margin:2.2rem auto 1.6rem;
  max-width:46ch;
  color:var(--petroleo-70);
}

/* ── Primera visita: nodos sobre el trazo ───────────────────── */
/* Acá los pasos SÍ son una secuencia: la línea con nodos dice algo
   verdadero del contenido, no lo decora. */
.visita{
  background:var(--pastel-rosa);
  color:var(--petroleo-70);
}
.visita .titulo,
.visita .paso h3{color:var(--petroleo)}
.visita .cintillo{color:var(--dorado)}
.visita .entrada{color:var(--petroleo-70)}

.pasos{
  list-style:none;margin:0;padding:0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:2rem;
}
.paso{
  position:relative;
  padding-top:3rem;
}
/* La línea que une los nodos */
.paso::before{
  content:'';
  position:absolute;top:6px;left:0;right:-2rem;
  height:1px;
  background:rgba(124,116,106,.18);
}
.pasos .paso:last-child::before{right:0}
/* El nodo */
.paso::after{
  content:'';
  position:absolute;top:1px;left:0;
  width:11px;height:11px;
  border-radius:999px;
  background:var(--crema);
  border:1.5px solid var(--petroleo);
  transition:background .4s var(--ease);
}
.paso:hover::after{background:var(--petroleo)}
.paso h3{
  font-size:1.1rem;
  font-weight:500;
  margin-bottom:.6rem;
}
.paso p{margin:0;font-size:.94rem;line-height:1.6}

/* ── FAQ ────────────────────────────────────────────────────── */
.faq-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:clamp(2.5rem,5vw,5rem);
  align-items:start;
}
.faq-head{position:sticky;top:7rem}
.faq-lista{border-top:1px solid var(--petroleo-12)}
.qa{border-bottom:1px solid var(--petroleo-12)}
.qa summary{
  list-style:none;
  cursor:pointer;
  padding:1.35rem 2.4rem 1.35rem 0;
  position:relative;
  font-family:var(--display);
  font-size:1.03rem;
  font-weight:400;
  color:var(--petroleo);
  transition:color .3s var(--ease);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--gris)}
/* El signo + hecho de dos trazos: mismo vocabulario de líneas */
.qa summary::after{
  content:'';
  position:absolute;right:2px;top:50%;
  width:13px;height:1px;
  background:var(--petroleo);
  transition:transform .3s var(--ease);
}
.qa summary::before{
  content:'';
  position:absolute;right:8px;top:50%;
  width:1px;height:13px;
  margin-top:-6px;
  background:var(--petroleo);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.qa[open] summary::before{transform:rotate(90deg);opacity:0}
.qa p{
  margin:0;
  padding:0 3rem 1.5rem 0;
  font-size:.98rem;
  color:var(--gris);
}
.pendiente{
  color:var(--petroleo-45);
  font-style:italic;
}

/* ── Contacto ───────────────────────────────────────────────── */
.sedes{
  display:grid;
  gap:1.6rem;
  max-width:440px;
  margin-inline:auto;
}
.sede{
  border:1px solid var(--petroleo-12);
  border-radius:var(--r);
  padding:2.4rem 2rem;
  background:var(--blanco-calido);
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.sede:hover{border-color:var(--petroleo-45);transform:translateY(-3px)}
.sede h3{font-size:1.5rem;font-weight:500;margin-bottom:.25rem}
.sede-dir{
  color:var(--petroleo-70);
  font-size:.95rem;
  margin-bottom:1.6rem;
}
.sede-datos{margin:0 0 1.8rem}
.sede-datos>div{
  display:flex;justify-content:space-between;gap:1rem;
  padding:.7rem 0;
  border-top:1px solid var(--petroleo-12);
  font-size:.93rem;
}
.sede-datos dt{
  color:var(--petroleo-70);
  font-weight:400;
}
.sede-datos dd{margin:0;text-align:right}
.sede-datos dd a{
  color:var(--petroleo);
  text-decoration:none;
  border-bottom:1px solid var(--petroleo-20);
}
.sede-datos dd a:hover{border-bottom-color:var(--petroleo)}
.mapa-link{
  display:inline-block;
  margin-top:1.1rem;
  font-size:.88rem;
  color:var(--petroleo-70);
  text-decoration:none;
}
.mapa-link::after{content:' →';transition:opacity .3s var(--ease)}
.mapa-link:hover{color:var(--petroleo)}

/* ── Pie ────────────────────────────────────────────────────── */
.pie{
  background:var(--pastel-celeste);
  color:var(--petroleo-70);
  padding:clamp(3rem,5vw,4.5rem) 0 2.5rem;
}
.pie-fila{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:1.5rem 2rem;
}
.pie-logo{
  display:block;
  width:190px;
  aspect-ratio:4512/1324;
  color:var(--dorado);
  fill:currentColor;
}
.pie-claim{
  margin:0;
  font-family:var(--display);
  font-weight:200;
  font-size:1.05rem;
  color:var(--petroleo);
  letter-spacing:-.01em;
}
.pie-redes{display:flex;gap:1.4rem}
.pie-redes a{
  font-size:.88rem;
  text-decoration:none;
  color:var(--petroleo-70);
  transition:color .3s var(--ease);
}
.pie-redes a:hover{color:var(--petroleo)}
.pie-legal{
  grid-column:1/-1;
  margin:1.5rem 0 0;
  padding-top:1.5rem;
  border-top:1px solid var(--petroleo-12);
  font-size:.8rem;
  color:var(--petroleo-70);
}

/* ── WhatsApp flotante ──────────────────────────────────────── */
.wa{position:fixed;right:1.4rem;bottom:1.4rem;z-index:60}
.wa-btn{
  width:54px;height:54px;
  border-radius:999px;border:0;
  background:var(--petroleo);
  color:var(--crema);
  display:grid;place-items:center;
  cursor:pointer;
  box-shadow:0 6px 24px rgba(124,116,106,.26);
  transition:transform .3s var(--ease);
}
.wa-btn:hover{transform:scale(1.06)}
.wa-panel{
  position:absolute;right:0;bottom:66px;
  width:220px;
  background:var(--crema);
  border:1px solid var(--petroleo-12);
  border-radius:var(--r);
  padding:1.1rem;
  box-shadow:0 12px 40px rgba(124,116,106,.16);
}
.wa-titulo{
  margin:0 0 .8rem;
  font-family:var(--display);
  font-size:.85rem;
  font-weight:500;
  color:var(--petroleo);
}
.wa-panel a{
  display:block;
  padding:.6rem .8rem;
  border-radius:10px;
  font-size:.92rem;
  text-decoration:none;
  color:var(--petroleo);
  transition:background .25s var(--ease);
}
.wa-panel a:hover{background:var(--petroleo-12)}

/* ── Revelado al hacer scroll ───────────────────────────────── */
.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
}
.reveal.visible{opacity:1;transform:none}

/* ── Animación de entrada del hero (carga de página) ────────── */
@keyframes heroFadeUp{
  from{opacity:0;transform:translateY(28px)}
  to{opacity:1;transform:none}
}
@keyframes heroFadeIn{
  from{opacity:0}
  to{opacity:1}
}
.hero-titulo-1{
  animation:heroFadeUp .8s var(--ease) .1s both;
}
.hero-titulo-2{
  animation:heroFadeUp .8s var(--ease) .22s both;
}
.hero-bajada{
  animation:heroFadeUp .8s var(--ease) .38s both;
}
.hero-acciones{
  animation:heroFadeUp .8s var(--ease) .52s both;
}
.hero-visual{
  animation:heroFadeIn 1.2s var(--ease) 0s both;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width:960px){
  .nosotros-grid,
  .caso-mes-grid,
  .faq-grid{grid-template-columns:1fr}
  .hero{align-items:flex-start}
  .hero-contenido{
    grid-template-columns:1fr;
    gap:2.3rem;
    text-align:left;
  }
  .hero-texto{padding-top:0}
  .hero-texto::before{left:-12vw;width:92vw;top:28%}
  .hero-titulo{font-size:clamp(3.25rem,14vw,6rem)}
  .hero-bajada{max-width:38ch}
  .hero-visual{
    min-height:clamp(25rem,76vw,38rem);
    width:min(100%,48rem);
    margin-right:auto;
    justify-self:center;
  }
  .hero-foto-principal{
    width:100%;
    margin-inline:auto;
  }
  .caso-mes-texto{text-align:center}
  .caso-mes-texto .titulo,
  .caso-mes-texto .entrada{margin-inline:auto}
  .caso-mes-datos,
  .caso-mes-acciones{justify-content:center}
  .faq-head{position:static}
  .franja-grid{grid-template-columns:1fr;gap:1.4rem}
  .dato{border-left:0;padding-left:0;border-top:1px solid rgba(124,116,106,.16);padding-top:1.2rem}
  .franja-grid .dato:first-child{border-top:0;padding-top:0}
  .pasos{grid-template-columns:repeat(2,1fr);gap:2.4rem 2rem}
  .pasos .paso:nth-child(2n)::before{right:0}
  .grilla-servicios{grid-template-columns:repeat(2,1fr)}
  .spine{display:none}

  .nav{
    position:fixed;inset:0 0 auto;
    top:0;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:1.8rem;
    height:100dvh;
    background:var(--crema);
    transform:translateY(-100%);
    transition:transform .45s var(--ease);

    margin:0;
  }
  .nav.abierto{transform:none}
  .nav.abierto a{color:var(--petroleo) !important}
  .nav.abierto a::after{background:var(--petroleo) !important}
  .nav a{font-size:1.4rem;font-weight:300}
  .nav-toggle{display:flex;z-index:2}
  .cabecera-cta{display:none}
}

@media (max-width:600px){
  .hero{
    min-height:auto;
    padding-top:6.8rem;
  }
  .hero-contenido{gap:1.25rem}
  .hero::before{top:5.4rem}
  .hero-marca-agua{
    right:-.18em;
    top:11%;
    font-size:7.6rem;
  }
  .hero-titulo{
    font-size:clamp(2.7rem,14.8vw,3.6rem);
    line-height:.92;
  }
  .hero-bajada{font-size:1rem}
  .hero-acciones{align-items:stretch}
  .hero-acciones .boton{width:100%}
  .hero-visual{
    min-height:auto;
    width:100%;
    max-width:100%;
    overflow:hidden;
    margin-right:0;
    margin-top:-.4rem;
  }
  .hero-foto-principal{
    width:108%;
    margin-left:-4%;
    aspect-ratio:1/1.04;
    -webkit-mask-image:
      linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%),
      linear-gradient(180deg,transparent 0%,#000 8%,#000 88%,transparent 100%);
    mask-image:
      linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%),
      linear-gradient(180deg,transparent 0%,#000 8%,#000 88%,transparent 100%);
  }
  .hero-foto-principal>img{object-position:50% 50%}
  .pasos,
  .sedes,
  .grilla-servicios{grid-template-columns:1fr}
  .caso-mes-fotos{grid-template-columns:1fr}
  .paso{padding-top:2.4rem}
  .paso::before{right:0}
  .pie-fila{grid-template-columns:1fr;text-align:center;justify-items:center}
  .diente{right:-2%;bottom:-7%;width:110px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
  .reveal{opacity:1;transform:none}
  .spine path{stroke-dashoffset:0}
}