/* ==========================================================================
   Mcatecnics — hoja de estilos principal
   Marco fijo: columna de texto a la izquierda, imagen a la derecha.
   ========================================================================== */

:root {
  --paper:      #ffffff;
  /* Tipografía en azul RAL 5013 (Kobaltblau) y dos tintes del mismo azul */
  --ink-strong: #1E213D;   /* RAL 5013 exacto: marca, titulares, énfasis */
  --ink:        #43465E;   /* texto corrido */
  --ink-mute:   #727486;   /* texto secundario (contraste AA) */
  --rule:       #e2e2e2;

  --m:          clamp(18px, 2.8vw, 40px);   /* margen del marco */
  --rail:       clamp(280px, 32vw, 460px);  /* ancho de la columna izquierda */
  /* Ancho útil de la zona de imagen, para calcular la altura de la banda */
  --stage-w:    calc(100vw - clamp(280px, 32vw, 460px) - var(--m));
  --header-h:   54px;                       /* solo en móvil */

  --f: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
       "Helvetica Neue", Arial, sans-serif;

  --t-nav:   0.656rem;   /* 10.5px */
  --t-micro: 0.688rem;
  --t-small: 0.813rem;
  --t-body:  0.875rem;
  --t-brand: clamp(1.75rem, 3.4vw, 3.25rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f);
  font-size: var(--t-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
h1, h2, h3, p, figure, dl, dd, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 1px solid var(--ink-strong); outline-offset: 3px; }
::selection { background: var(--ink-strong); color: var(--paper); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -100px; left: var(--m); z-index: 200;
  padding: 10px 16px; background: var(--ink-strong); color: var(--paper);
  font-size: var(--t-small);
}
.skip-link:focus { top: 10px; }

/* ============================================================== El marco == */
.shell {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  height: 100svh;
  overflow: hidden;
}

/* ----------------------------------------------- Columna izquierda ------- */
.rail {
  display: flex;
  flex-direction: column;
  padding: var(--m);
  min-height: 0;
}

.rail__brand {
  display: block;
  font-size: var(--t-brand);
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 0.95;
  text-transform: uppercase;
  color: var(--ink-strong);
  margin-bottom: clamp(20px, 3.2vh, 38px);
}

.rail__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding-right: 12px;
  scrollbar-width: thin;
  /* Difumina el corte inferior para insinuar que hay más texto */
  mask-image: linear-gradient(to bottom, #000 calc(100% - 26px), transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000 calc(100% - 26px), transparent);
}
.rail__body::-webkit-scrollbar { width: 3px; }
.rail__body::-webkit-scrollbar-thumb { background: var(--rule); }

.rail__nav {
  flex: 0 0 auto;
  padding-top: 26px;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  line-height: 1.75;
}
.rail__nav a { color: var(--ink); transition: color 0.25s var(--ease); }
.rail__nav a:hover { color: var(--ink-mute); }
.rail__nav a[aria-current="page"] { color: var(--ink-mute); }
.rail__nav .lang { margin-top: 4px; color: var(--ink-mute); }
.rail__nav .lang a[aria-current="true"] { color: var(--ink); }
.rail__nav .legal { margin-top: 14px; color: var(--ink-mute); }

/* Tipografía de la columna */
.eyebrow {
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-strong);
}
.meta { font-size: var(--t-nav); letter-spacing: 0.04em; color: var(--ink); }
.muted { color: var(--ink-mute); }

.rail__text p { font-size: var(--t-body); max-width: 40ch; }
.rail__text p + p { margin-top: 1.1em; }

.toggle {
  display: inline-block;
  margin-top: 22px;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-strong);
}
.toggle:hover { color: var(--ink-mute); }

.panel[hidden] { display: none; }
.panel { margin-top: 16px; }
.panel p { font-size: var(--t-small); line-height: 1.6; max-width: 42ch; }
.panel p + p { margin-top: 0.95em; }
.panel__h {
  font-size: var(--t-nav);
  font-weight: 400;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-strong);
  margin-top: 1.7em;
  margin-bottom: 0.6em;
}
.panel > .panel__h:first-child { margin-top: 0; }

.specs { margin-top: 18px; }
.specs div { display: flex; gap: 10px; font-size: var(--t-micro); line-height: 1.85; }
.specs dt { flex: 0 0 82px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.05em; }
.specs dd { margin: 0; }

.pager {
  display: flex;
  gap: 18px;
  margin-top: 26px;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.pager a:hover { color: var(--ink-mute); }

/* Filtros (listado de proyectos) */
.filters { display: grid; gap: 2px; }
.filters button {
  text-align: left;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 2px 0;
  transition: color 0.25s var(--ease);
}
.filters button:hover { color: var(--ink); }
.filters button[aria-pressed="true"] { color: var(--ink-strong); }

/* Servicios y equipo dentro de la columna */
.block + .block { margin-top: 26px; }
.block h3 { font-size: var(--t-nav); letter-spacing: 0.07em; text-transform: uppercase; font-weight: 400; color: var(--ink-strong); }
.block p, .block li { font-size: var(--t-small); line-height: 1.6; }
.block ul { margin-top: 4px; }
.block li { color: var(--ink-mute); }
.block .person { display: block; color: var(--ink); margin-top: 8px; }
.block .person span { display: block; color: var(--ink-mute); }

/* ------------------------------------------------- Zona de imagen -------- */
.stage {
  position: relative;
  min-height: 0;
  padding: var(--m) var(--m) var(--m) 0;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.stage--scroll { overflow-y: auto; display: block; }

/* Pase de imágenes.
   La banda tiene SIEMPRE la misma altura, así que todas las fotos de un
   proyecto se ven a la misma altura y es el ancho el que cambia según el
   formato de cada una. Ninguna se recorta. La altura se limita además a una
   proporción del ancho disponible para que una foto apaisada quepa entera. */
.slider {
  position: relative;
  width: 100%;
  /* La banda se calcula a partir de la foto más apaisada de CADA proyecto
     (--banda, que pone el generador), de modo que dentro de un proyecto todas
     salen a la misma altura y ninguna llega a topar con el ancho. 0,46 admite
     hasta 2,17:1 y es el valor por defecto. */
  height: min(100%, calc(var(--stage-w) * var(--banda, 0.46)));
}
.slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.55s var(--ease), visibility 0s linear 0.55s;
}
.slide.is-on {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.55s var(--ease), visibility 0s linear 0s;
}
/* Cuando la imagen va dentro de un enlace, el <a> debe ocupar toda la
   diapositiva; si no, el 100% de altura de la imagen no tiene contra qué
   resolverse y la foto sale a tamaño natural. */
.slide > a {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  max-width: 100%;
}

.slide img {
  height: 100%;
  width: auto;
  /* max-width haría que el navegador recalculase la altura a partir del ancho,
     que es justo lo que queremos evitar: la altura manda, el ancho va libre. */
  max-width: none;
}

.slider__arrow {
  position: absolute;
  top: 0; bottom: 0;
  width: clamp(48px, 7vw, 92px);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--ink-strong);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  z-index: 3;
}
.slider:hover .slider__arrow,
.slider__arrow:focus-visible { opacity: 1; }
.slider__arrow--prev { left: 0; }
.slider__arrow--next { right: 0; }

.slider__caption {
  position: absolute;
  left: 0; bottom: -2px;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-mute);
  z-index: 2;
  pointer-events: none;
}
.slider__caption a { pointer-events: auto; color: var(--ink-strong); }

/* La portada enlaza al proyecto */
.slide--link img { cursor: pointer; }

/* -------------------------------------------- Retícula de proyectos ------ */
.thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 54px 20px;
  align-content: start;
}
/* En pantalla ancha: tres columnas pegadas a la derecha, dejando aire a la
   izquierda, como en Plantea. */
@media (min-width: 1180px) {
  .thumbs {
    grid-template-columns: repeat(3, minmax(0, 232px));
    justify-content: end;
  }
}
.thumb { position: relative; display: block; }
.thumb__media {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #f2f1ef;
}
.thumb__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 0.35s var(--ease);
}
.thumb:hover .thumb__media img { opacity: 0.82; }
.thumb__label {
  margin-top: 7px;
  font-size: var(--t-nav);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.4;
}
.thumb__label span { display: block; color: var(--ink-mute); }
.thumb[hidden] { display: none; }

/* ------------------------------------------------------ Formulario ------- */
.form { display: grid; gap: 14px; max-width: 38ch; margin-top: 18px; }
.field { display: grid; gap: 4px; }
.field label {
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.field input, .field textarea, .field select {
  font: inherit;
  font-size: var(--t-small);
  color: var(--ink-strong);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule);
  border-radius: 0;
  padding: 6px 0;
  transition: border-color 0.3s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-bottom-color: var(--ink-strong);
}
.field textarea { resize: vertical; min-height: 84px; }
.btn {
  justify-self: start;
  font-size: var(--t-nav);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border: 1px solid var(--ink-strong);
  padding: 9px 20px;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}
.btn:hover { background: var(--ink-strong); color: var(--paper); }
.note { font-size: var(--t-micro); color: var(--ink-mute); max-width: 40ch; }
.note a { text-decoration: underline; text-underline-offset: 2px; }

/* Mapa diferido */
.map { position: relative; width: 100%; height: 100%; border: 1px solid var(--rule); }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }
.map__ph { position: absolute; inset: 0; display: grid; place-content: center; gap: 12px; text-align: center; padding: 20px; }

/* ================================================== Cabecera de móvil ===== */
.mhead { display: none; }

@media (max-width: 999px) {
  .mhead {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: var(--header-h);
    padding-inline: var(--m);
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
  }
  .mhead__brand {
    font-size: 1.0625rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: var(--ink-strong);
  }
  .mtoggle { width: 30px; height: 30px; position: relative; margin-right: -6px; }
  .mtoggle span {
    position: absolute; left: 3px; right: 3px; height: 1.5px; background: var(--ink-strong);
    transition: transform 0.35s var(--ease);
  }
  .mtoggle span:nth-child(1) { top: 11px; }
  .mtoggle span:nth-child(2) { top: 18px; }
  body.nav-open .mtoggle span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
  body.nav-open .mtoggle span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

  .shell {
    display: flex;
    flex-direction: column;   /* la imagen va primero: ver `order` */
    height: auto;
    overflow: visible;
  }

  .rail {
    padding: 0 var(--m) 0;
    order: 2;
  }
  .rail__brand { display: none; }
  .rail__body { overflow: visible; padding: 22px 0 0; }

  /* La navegación de la columna pasa a ser el menú desplegable */
  .rail__nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    z-index: 40;
    background: var(--paper);
    padding: 8vh var(--m) var(--m);
    font-size: 1.5rem;
    letter-spacing: 0;
    line-height: 1.75;
    text-transform: none;
    transform: translateY(-101%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.5s var(--ease), visibility 0s linear 0.5s;
    overflow-y: auto;
  }
  body.nav-open .rail__nav {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.5s var(--ease), visibility 0s linear 0s;
  }
  body.nav-open { overflow: hidden; }
  .rail__nav .lang,
  .rail__nav .legal {
    font-size: var(--t-nav);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-top: 26px;
  }

  .stage {
    order: 1;
    padding: var(--m) var(--m) 0;
    height: auto;
    overflow: visible;
  }
  .slider { height: auto; }
  .slide {
    position: relative;
    inset: auto;
    display: none;
    opacity: 1;
    visibility: visible;
  }
  .slide.is-on { display: flex; }
  .slide img { width: 100%; height: auto; max-width: 100%; }
  .slider__arrow { opacity: 1; width: 44px; background: none; }
  .slider__caption { position: static; margin-top: 10px; }

  .thumbs { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 44px; }

  .rail__text p, .panel p { max-width: none; }
  .form { max-width: none; }

  /* Un poco de aire al final de la página */
  .shell { padding-bottom: var(--m); }
}

@media (max-width: 480px) {
  .thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .rail__nav, .slider__arrow, .mhead { display: none !important; }
  .shell { display: block; height: auto; overflow: visible; }
  .slide { position: static; opacity: 1; visibility: visible; }
}