/* =========================================================
   Eraikuntza · Galería de proyectos (carrusel "lámina técnica")
   Colores y tipografía tomados de www.eraikuntza.cl
   ========================================================= */

:root {
  --azul: #2984d1;          /* cabecera del sitio madre */
  --azul-hover: #1f6fb3;
  --marino: #0a2a4a;        /* azul del logotipo */
  --marino-90: rgba(10, 42, 74, .9);
  --coral: #df7366;         /* botones del sitio madre */
  --coral-hover: #c95f53;
  --ciruela: #483949;       /* títulos del sitio madre */
  --grafito: #2b252c;       /* pie del sitio madre */
  --niebla: #f0f4f4;        /* fondo del sitio madre */
  --blanco: #ffffff;
  --texto: #4f4f4f;
  --linea: rgba(10, 42, 74, .16);
  --whatsapp: #25d366;

  --fuente: "Source Sans Pro", "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --ancho: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --radio: 4px;
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--fuente);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--texto);
  background: var(--niebla);
}
img { max-width: 100%; display: block; }
a { color: var(--azul); }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; }
.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;
}
.salto {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--marino); color: #fff; padding: 10px 16px; border-radius: var(--radio);
}
.salto:focus { top: 12px; }
.contenedor { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Cabecera y menú (mismos botones que el sitio madre) ---------- */
.cabecera {
  position: sticky; top: 0; z-index: 50;
  background: var(--blanco);
  border-bottom: 1px solid var(--linea);
}
.cabecera__fila {
  display: flex; align-items: center; justify-content: space-between;
  min-height: var(--header-h); gap: 24px;
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { height: 58px; width: auto; }
.logo__lema {
  font-size: .8125rem; line-height: 1.3; color: var(--ciruela); max-width: 15ch;
  border-left: 1px solid var(--linea); padding-left: 12px;
}
.menu ul { list-style: none; margin: 0; padding: 0; }
.menu > ul { display: flex; align-items: center; gap: 4px; }
.menu a, .menu__abrir {
  display: block; padding: 10px 14px;
  color: var(--ciruela); text-decoration: none; font-size: 1.0625rem;
  background: none; border: 0; border-radius: var(--radio);
}
.menu a:hover, .menu__abrir:hover { color: var(--azul); }
.menu a[aria-current="page"] { color: var(--marino); font-weight: 600; box-shadow: inset 0 -3px 0 var(--coral); border-radius: 0; }
.menu__abrir { display: flex; align-items: center; gap: 6px; }
.menu__abrir svg { transition: transform .2s; }
.menu__item--sub { position: relative; }
.submenu {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 270px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 6px; box-shadow: 0 14px 34px rgba(10, 42, 74, .14);
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity .15s, transform .15s, visibility .15s;
}
.menu__item--sub.abierto .submenu,
.menu__item--sub:hover .submenu { opacity: 1; visibility: visible; transform: none; }
.menu__item--sub.abierto .menu__abrir svg { transform: rotate(180deg); }
.submenu a { padding: 9px 12px; font-size: 1rem; }
.submenu a:hover { background: var(--niebla); }
.hamburguesa {
  display: none; width: 46px; height: 46px; border: 1px solid var(--linea);
  background: var(--blanco); border-radius: var(--radio); color: var(--marino);
  align-items: center; justify-content: center;
}

@media (max-width: 960px) {
  .logo__lema { display: none; }
  .hamburguesa { display: inline-flex; }
  .menu {
    position: fixed; inset: var(--header-h) 0 auto 0; max-height: calc(100vh - var(--header-h));
    overflow-y: auto; background: var(--blanco); border-bottom: 1px solid var(--linea);
    padding: 8px var(--gutter) 20px; display: none;
  }
  .menu.abierto { display: block; }
  .menu > ul { flex-direction: column; align-items: stretch; }
  .menu a, .menu__abrir { padding: 14px 4px; width: 100%; border-bottom: 1px solid var(--linea); border-radius: 0; }
  .menu a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--coral); padding-left: 12px; }
  .submenu {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    border: 0; padding: 0 0 0 14px; display: none; min-width: 0;
  }
  .menu__item--sub:hover .submenu { display: none; }
  .menu__item--sub.abierto .submenu { display: block; }
}

/* ---------- Portada de la galería: fondo de plano técnico ---------- */
.portada {
  position: relative; color: #e7eef6;
  background-color: var(--marino);
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  background-position: -1px -1px;
  padding: clamp(36px, 6vw, 72px) 0 clamp(150px, 16vw, 210px);
}
.migas ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; padding: 0; font-size: .9375rem; }
.migas li + li::before { content: "/"; margin-right: 8px; opacity: .5; }
.migas a { color: #9fc8ee; text-decoration: none; }
.migas a:hover { text-decoration: underline; }
.portada h1 {
  margin: 0; color: #fff; font-weight: 300;
  font-size: clamp(2.5rem, 6vw, 4.25rem); line-height: 1.05; letter-spacing: -.01em;
}
.portada__intro { max-width: 62ch; margin: 16px 0 0; font-size: 1.1875rem; color: #c9d7e6; }

.herramientas {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; margin-top: 34px;
}
.filtros { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; border: 0; min-width: 0; max-width: 100%; }
.filtro {
  border: 1px solid rgba(255,255,255,.28); background: transparent; color: #dbe6f1;
  padding: 7px 14px; border-radius: 999px; font-size: .9375rem; line-height: 1.2;
  transition: background .15s, border-color .15s, color .15s;
}
.filtro:hover { border-color: #fff; color: #fff; }
.filtro[aria-pressed="true"] { background: var(--coral); border-color: var(--coral); color: #fff; }
.filtro span { opacity: .7; margin-left: 4px; font-size: .8125rem; }

.vista { display: inline-flex; border: 1px solid rgba(255,255,255,.28); border-radius: var(--radio); overflow: hidden; }
.vista button {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: #dbe6f1; border: 0; padding: 8px 14px; font-size: .9375rem;
}
.vista button + button { border-left: 1px solid rgba(255,255,255,.28); }
.vista button[aria-pressed="true"] { background: #fff; color: var(--marino); }

/* ---------- Escenario del carrusel ---------- */
.galeria { margin-top: clamp(-190px, -14vw, -130px); position: relative; z-index: 2; padding-bottom: 72px; }
.escenario {
  position: relative; background: var(--grafito); border-radius: var(--radio);
  overflow: hidden; box-shadow: 0 30px 60px -20px rgba(10, 42, 74, .45);
  touch-action: pan-y;
}
.escenario:focus-visible { outline-offset: 4px; }
.pista {
  display: flex; margin: 0; padding: 0; list-style: none;
  transition: transform .65s cubic-bezier(.65, .05, .25, 1);
  will-change: transform;
}
.escenario.arrastrando .pista { transition: none; }
.lamina { flex: 0 0 100%; position: relative; }
.lamina[hidden] { display: none; }
.lamina figure { margin: 0; }
.lamina__foto {
  position: relative; aspect-ratio: 2000 / 1414; overflow: hidden; background: #1b2632;
}
.lamina__foto img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.06); transition: transform 7s ease-out;
}
.lamina.activa .lamina__foto img { transform: scale(1); }

/* La ficha técnica (cajetín de plano) — nombre, trabajo, ciudad */
.cajetin {
  position: absolute; left: clamp(16px, 3vw, 32px); bottom: clamp(16px, 3vw, 32px);
  width: min(560px, calc(100% - 200px));
  display: grid; grid-template-columns: 1fr 1fr auto;
  background: var(--blanco); color: var(--marino);
  border: 1.5px solid var(--marino); border-radius: 2px;
  box-shadow: 0 12px 30px rgba(0,0,0,.28);
  opacity: 0; transform: translateY(10px);
  transition: opacity .45s .25s, transform .45s .25s;
}
.lamina.activa .cajetin { opacity: 1; transform: none; }
.cajetin > div, .cajetin > dl { padding: 10px 14px 12px; margin: 0; min-width: 0; }
.cajetin dt, .cajetin__rotulo {
  display: block; font-size: .75rem; color: #6a7b8c; margin: 0 0 2px; letter-spacing: .02em;
}
.cajetin dd { margin: 0; }
.cajetin__proyecto { grid-column: 1 / -1; border-bottom: 1.5px solid var(--marino); }
.cajetin__proyecto h2 {
  margin: 0; font-size: clamp(1.125rem, 1.9vw, 1.5rem); font-weight: 600; line-height: 1.2; color: var(--marino);
}
.cajetin__trabajo { border-right: 1px solid var(--linea); }
.cajetin__trabajo a { color: var(--azul); text-decoration: none; font-weight: 600; }
.cajetin__trabajo a:hover { text-decoration: underline; }
.cajetin__ciudad dd { display: flex; align-items: center; gap: 6px; font-weight: 600; }
.cajetin__ciudad svg { flex: none; color: var(--coral); }
.cajetin__lamina { border-left: 1.5px solid var(--marino); text-align: center; background: var(--niebla); }
.cajetin__lamina strong { display: block; font-size: 1.375rem; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.cajetin__lamina small { font-size: .75rem; color: #6a7b8c; }

/* Controles: capa del mismo tamaño que la foto */
.capa { position: absolute; top: 0; left: 0; right: 0; aspect-ratio: 2000 / 1414; pointer-events: none; z-index: 3; }
.capa > * { pointer-events: auto; }
.progreso { position: absolute; top: 0; left: 0; right: 0; height: 3px; background: rgba(255,255,255,.15); z-index: 3; }
.progreso span { display: block; height: 100%; width: 0; background: var(--coral); }
.controles { position: absolute; right: clamp(16px, 3vw, 32px); bottom: clamp(16px, 3vw, 32px); display: flex; gap: 8px; z-index: 3; }
.controles-sup { position: absolute; top: 16px; right: 16px; display: flex; gap: 8px; z-index: 3; }
.boton-icono {
  width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: var(--radio); background: var(--marino-90); color: #fff;
  transition: background .15s;
}
.boton-icono:hover { background: var(--azul); }
.boton-icono--claro { width: 42px; height: 42px; background: rgba(10, 42, 74, .55); backdrop-filter: blur(6px); }

/* Riel de miniaturas */
.riel {
  display: flex; gap: 10px; margin: 14px 0 0; padding: 4px 2px 10px; list-style: none;
  overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: thin;
}
.riel li { flex: 0 0 auto; scroll-snap-align: start; }
.riel li[hidden] { display: none; }
.riel button {
  width: 132px; padding: 0; border: 0; background: none; text-align: left; color: var(--ciruela);
  opacity: .62; transition: opacity .2s;
}
.riel button:hover, .riel button[aria-current="true"] { opacity: 1; }
.riel img { width: 132px; aspect-ratio: 2000 / 1414; object-fit: cover; border-radius: 2px; outline: 2px solid transparent; outline-offset: 2px; }
.riel button[aria-current="true"] img { outline-color: var(--coral); }
.riel span { display: block; font-size: .8125rem; line-height: 1.3; margin-top: 8px; }

/* ---------- Vista cuadrícula (bento) ---------- */
.cuadricula {
  display: grid; grid-template-columns: repeat(6, 1fr); grid-auto-flow: dense; gap: 14px;
  margin: 0; padding: 0; list-style: none;
}
.cuadricula[hidden], .vista-carrusel[hidden] { display: none; }
.tarjeta { grid-column: span 2; }
.tarjeta--grande { grid-column: span 4; grid-row: span 2; }
.tarjeta button {
  display: flex; flex-direction: column; width: 100%; height: 100%; padding: 0; border: 0; text-align: left;
  background: var(--blanco); border-radius: var(--radio); overflow: hidden; color: var(--texto);
  border-bottom: 3px solid transparent; transition: border-color .2s;
}
.tarjeta button:hover { border-bottom-color: var(--coral); }
.tarjeta__foto { flex: 1; min-height: 0; overflow: hidden; aspect-ratio: 2000 / 1414; }
.tarjeta--grande .tarjeta__foto { aspect-ratio: auto; }
.tarjeta__foto img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.tarjeta button:hover img { transform: scale(1.04); }
.tarjeta__texto { padding: 12px 14px 14px; }
.tarjeta__texto strong { display: block; color: var(--marino); font-weight: 600; line-height: 1.25; }
.tarjeta__texto span { display: block; font-size: .875rem; margin-top: 4px; color: #6a6a6a; }

.vacio { background: var(--blanco); border-radius: var(--radio); padding: 40px; text-align: center; }

/* ---------- Visor a pantalla completa ---------- */
.visor {
  width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0;
  background: rgba(8, 20, 34, .96); color: #fff;
}
.visor::backdrop { background: rgba(8, 20, 34, .8); }
.visor[open] { display: grid; grid-template-rows: 1fr auto; }
.visor__img { display: flex; align-items: center; justify-content: center; padding: 64px 72px 12px; min-height: 0; }
.visor__img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.visor__pie { display: flex; flex-wrap: wrap; gap: 6px 24px; align-items: baseline; justify-content: center; padding: 12px 24px 26px; text-align: center; }
.visor__pie strong { font-size: 1.25rem; font-weight: 600; }
.visor__pie span { color: #b9c9da; }
.visor .boton-icono { position: absolute; }
.visor__cerrar { top: 14px; right: 14px; }
.visor__ant { left: 14px; top: 50%; transform: translateY(-50%); }
.visor__sig { right: 14px; top: 50%; transform: translateY(-50%); }

/* ---------- Llamado a cotizar ---------- */
.cotizar { background: var(--blanco); border-top: 1px solid var(--linea); padding: 56px 0; }
.cotizar__fila { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cotizar h2 { margin: 0; color: var(--ciruela); font-weight: 400; font-size: clamp(1.625rem, 3vw, 2.125rem); line-height: 1.2; }
.cotizar p { margin: 8px 0 0; max-width: 58ch; }
.botones { display: flex; flex-wrap: wrap; gap: 12px; }
.boton {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 24px;
  border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 1.0625rem;
  background: var(--coral); color: #fff; transition: background .15s;
}
.boton:hover { background: var(--coral-hover); }
.boton--borde { background: transparent; color: var(--marino); box-shadow: inset 0 0 0 1.5px var(--marino); }
.boton--borde:hover { background: var(--marino); color: #fff; }

/* ---------- Pie ---------- */
.pie { background: var(--grafito); color: #cfc8d0; padding: 56px 0 28px; font-size: 1rem; }
.pie__grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 36px; }
.pie h2 { color: #fff; font-size: 1.125rem; font-weight: 600; margin: 0 0 12px; }
.pie ul { list-style: none; margin: 0; padding: 0; }
.pie li + li { margin-top: 6px; }
.pie a { color: #cfc8d0; text-decoration: none; }
.pie a:hover { color: #fff; text-decoration: underline; }
.pie address { font-style: normal; }
.pie__marca { color: #fff; font-size: 1.5rem; font-weight: 300; margin: 0 0 8px; }
.pie__legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; font-size: .875rem; color: #9a929b; }

.whatsapp {
  position: fixed; right: 18px; bottom: 18px; z-index: 40;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--whatsapp); color: #fff; text-decoration: none; font-weight: 600;
  padding: 12px 18px; border-radius: 999px; box-shadow: 0 10px 24px rgba(0,0,0,.22);
}
.whatsapp:hover { background: #1fb457; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cajetin {
    position: static; width: auto; opacity: 1; transform: none; box-shadow: none;
    border-width: 0; border-top: 1.5px solid var(--marino); border-radius: 0;
  }
  .controles { bottom: 14px; right: 14px; }
  .cuadricula { grid-template-columns: repeat(2, 1fr); }
  .tarjeta { grid-column: span 1; }
  .tarjeta--grande { grid-column: span 2; grid-row: span 1; }
  .tarjeta--grande .tarjeta__foto { aspect-ratio: 2000 / 1414; }
  .pie__grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .herramientas { margin-top: 26px; }
  .filtros { flex-wrap: nowrap; overflow-x: auto; width: calc(100% + 2 * var(--gutter)); margin: 0 calc(-1 * var(--gutter)); padding: 0 var(--gutter) 4px; scrollbar-width: none; }
  .filtros::-webkit-scrollbar { display: none; }
  .filtro { flex: none; }
  .cajetin { grid-template-columns: 1fr auto; }
  .cajetin__trabajo { grid-column: 1 / -1; border-right: 0; border-bottom: 1px solid var(--linea); }
  .cajetin__ciudad { grid-column: 1; }
  .boton-icono { width: 42px; height: 42px; }
  .controles { bottom: 10px; right: 10px; }
  .controles-sup { top: 10px; right: 10px; }
  .riel button, .riel img { width: 108px; }
  .whatsapp span { display: none; }
  .whatsapp { padding: 14px; }
  .cuadricula { grid-template-columns: 1fr; }
  .tarjeta, .tarjeta--grande { grid-column: span 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .lamina__foto img { transform: none; }
}

/* Sin JavaScript: todas las láminas en columna, legibles */
.no-js .pista { flex-direction: column; gap: 16px; transform: none !important; }
.no-js .cajetin { opacity: 1; transform: none; }
.no-js .capa, .no-js .riel, .no-js .herramientas { display: none; }