/* ARVEX INGENIERIA, S.L. — hoja de estilos principal
   Dirección: lámina de plano sobre papel claro. Fondo luminoso con retícula
   técnica y dos halos de color, tipografía condensada para titulares y
   monoespaciada para etiquetas y datos. Dos bloques oscuros (banda final y pie)
   dan el contraste y marcan el ritmo de la página. */

:root {
  /* --- Fondos claros: neutros fríos, sesgados hacia el azul del acento --- */
  --c-bg:        #f4f7fb;
  --c-bg-2:      #eaf0f8;
  --c-surface:   #ffffff;
  --c-surface-2: #f8fafd;

  /* --- Bloques oscuros de contraste --- */
  --c-dark:      #0c1826;
  --c-dark-2:    #142639;

  /* --- Líneas --- */
  --c-line:      #dde5ef;
  --c-line-2:    #c2d1e1;

  /* --- Texto --- */
  --c-text:      #0c1826;
  --c-muted:     #4e657f;
  --c-dim:       #5b6f83;   /* 4.83:1 sobre el papel — antes 4.18, no llegaba a AA */

  /* --- Texto sobre los bloques oscuros --- */
  --c-on-dark:       #eef3f9;
  --c-on-dark-muted: #a3b6ca;

  /* --- Acentos --- */
  --c-accent:    #1668c4;
  --c-accent-2:  #0f4f9b;
  --c-accent-3:  #4d9ae8;
  --c-signal:    #9a5700;   /* 5.23:1 — el asterisco de obligatorio estaba en 3.48 */

  /* --- Tipografía --- */
  --f-display: "Barlow Condensed", "Arial Narrow", Impact, sans-serif;
  --f-body:    "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1200px;
  --pad: clamp(1.25rem, 4vw, 3rem);
  /* Escala de radios: cuanto más grande el elemento, más redondeado. */
  --radius-xs: 6px;    /* campos, etiquetas pequeñas */
  --radius: 10px;      /* botones, iconos, avisos */
  --radius-lg: 16px;   /* fichas, formulario, paneles */
  --ease: cubic-bezier(.22,.61,.36,1);
  --shadow:    0 1px 2px rgba(12,24,38,.05), 0 10px 30px rgba(12,24,38,.06);
  --shadow-lg: 0 2px 4px rgba(12,24,38,.06), 0 18px 44px rgba(12,24,38,.10);

  /* Retículas de plano: clara para los fondos luminosos, tenue para los oscuros */
  --trama:
    linear-gradient(rgba(22,104,196,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,104,196,.07) 1px, transparent 1px);
  --trama-oscura:
    linear-gradient(rgba(160,196,235,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(160,196,235,.07) 1px, transparent 1px);
  --trama-size: 88px 88px;
}

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

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

body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--c-accent); }

::selection { background: var(--c-accent); color: #fff; }

:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

.skip {
  position: absolute; top: 0; left: 0; z-index: 100;
  background: var(--c-accent); color: #fff; padding: .75rem 1rem; font-weight: 600;
  border-radius: 0 0 var(--radius) 0;
  transform: translateY(-120%);
  transition: transform .18s var(--ease);
}
.skip:focus { transform: none; }

/* ---------- Etiquetas monoespaciadas (el hilo conductor del diseño) ---------- */
.eyebrow {
  font-family: var(--f-mono);
  font-size: .7rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--c-accent); margin: 0 0 1rem;
  display: flex; align-items: center;
}

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-stuck {
  background: rgba(255,255,255,.94);
  border-bottom-color: var(--c-line);
  box-shadow: 0 1px 12px rgba(12,24,38,.05);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 74px;
}

.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; color: var(--c-text); }
/* El logotipo hereda el color del texto: gris pizarra sobre fondo claro,
   claro sobre los bloques oscuros. La V mantiene siempre el azul de marca. */
.brand__logo { height: 22px; width: auto; display: block; flex: none; }
.brand__sub {
  font-family: var(--f-mono);
  font-size: .62rem; letter-spacing: .24em; text-transform: uppercase; color: var(--c-dim);
  padding-left: .8rem; border-left: 1px solid var(--c-line-2); line-height: 1;
}

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a:not(.nav__cta) {
  position: relative;
  color: var(--c-muted); text-decoration: none;
  font-size: .84rem; font-weight: 500; letter-spacing: .04em; text-transform: uppercase;
  font-family: var(--f-mono);
  padding: .3rem 0;
  transition: color .18s ease;
}
.nav a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px;
  background: var(--c-accent); transition: right .25s ease;
}
.nav a:not(.nav__cta):hover { color: var(--c-text); }
.nav a:not(.nav__cta):hover::after { right: 0; }

.nav__cta {
  display: inline-flex; align-items: center; gap: .6rem;
  text-decoration: none; white-space: nowrap;
  font-family: var(--f-mono);
  font-size: .76rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; line-height: 1;
  color: #fff; background: var(--c-accent);
  padding: .82rem 1.3rem;
  border: 1px solid var(--c-accent); border-radius: var(--radius);
  transition: background-color .18s ease, border-color .18s ease;
}
.nav__cta { transition: background-color .2s ease, border-color .2s ease, transform .18s var(--ease), box-shadow .25s var(--ease); }
.nav__cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(22,104,196,.28); }
.nav__cta:active { transform: translateY(0); }
.nav__cta svg { flex: none; transition: transform .18s ease; }
.nav__cta:hover { background: var(--c-accent-2); border-color: var(--c-accent-2); }
.nav__cta:hover svg { transform: translateX(3px); }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--c-line-2);
  border-radius: var(--radius); padding: .5rem .65rem; cursor: pointer; color: var(--c-text);
  transition: border-color .2s ease, background-color .2s ease;
}
.nav-toggle:hover { border-color: var(--c-accent); background: rgba(22,104,196,.06); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  text-decoration: none; cursor: pointer;
  font-family: var(--f-mono);
  font-size: .8rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
  padding: 1rem 1.7rem; border-radius: var(--radius); border: 1px solid transparent;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease,
              box-shadow .25s var(--ease), transform .18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--c-accent); color: #fff; border-color: var(--c-accent); box-shadow: 0 6px 18px rgba(22,104,196,.22); }
.btn--primary:hover { background: var(--c-accent-2); border-color: var(--c-accent-2); box-shadow: 0 8px 22px rgba(22,104,196,.3); }
.btn--ghost { background: rgba(255,255,255,.7); color: var(--c-text); border-color: var(--c-line-2); }
.btn--ghost:hover { border-color: var(--c-accent); color: var(--c-accent); background: #fff; }
.btn--dark { background: var(--c-dark); color: var(--c-on-dark); border-color: var(--c-dark); }
.btn--dark:hover { background: var(--c-dark-2); border-color: var(--c-dark-2); }
.btn--sm { padding: .6rem 1.1rem; font-size: .72rem; }

/* Sobre los bloques oscuros el botón fantasma se invierte */
.cta-band .btn--ghost { background: transparent; color: var(--c-on-dark); border-color: rgba(255,255,255,.28); }
.cta-band .btn--ghost:hover { background: rgba(255,255,255,.08); border-color: #fff; color: #fff; }

/* ---------- Hero: lámina de plano sobre papel ---------- */
.hero {
  position: relative;
  background:
    linear-gradient(158deg, var(--c-bg-2) 0%, #ffffff 42%, #eef4fb 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
}
/* Retícula técnica: dos escalas, desvanecida hacia los bordes */
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    var(--trama),
    linear-gradient(rgba(22,104,196,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,104,196,.045) 1px, transparent 1px);
  background-size: var(--trama-size), var(--trama-size), 22px 22px, 22px 22px;
  -webkit-mask-image: radial-gradient(ellipse 88% 80% at 70% 35%, #000 12%, transparent 82%);
  mask-image: radial-gradient(ellipse 88% 80% at 70% 35%, #000 12%, transparent 82%);
  pointer-events: none;
}
/* Dos halos de color: el azul del acento y un ámbar de señalización, muy diluidos */
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle 42vw at 82% 8%, rgba(77,154,232,.28) 0%, transparent 62%),
    radial-gradient(circle 30vw at 96% 78%, rgba(230,164,60,.16) 0%, transparent 65%);
}
.hero .wrap { position: relative; z-index: 1; padding-block: clamp(4rem, 11vw, 7.5rem); }
.hero__inner { max-width: 54rem; }

.hero h1 {
  font-family: var(--f-display);
  font-size: clamp(2.6rem, 7.4vw, 5.4rem);
  line-height: .96; letter-spacing: -.005em; font-weight: 600;
  text-transform: uppercase;
  text-wrap: balance;
  color: var(--c-text);
  margin: 0 0 1.5rem;
}
.hero h1 em { font-style: normal; color: var(--c-accent); }
.hero p.lead {
  font-size: clamp(1.05rem, 1.7vw, 1.24rem);
  color: var(--c-muted); margin: 0 0 2.5rem; max-width: 38rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* Acción secundaria: enlace de texto bajo el botón principal. Deliberadamente
   ligero — no debe competir con el CTA, solo estar ahí para quien lo busca. */
.accion-secundaria { margin: 1.3rem 0 0; font-size: .9rem; }
.accion-secundaria a {
  display: inline-flex; align-items: center; gap: .5rem;
  color: var(--c-muted); text-decoration: none;
  padding: .35rem 0; border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.accion-secundaria svg { flex: none; color: var(--c-signal); }
.accion-secundaria span { transition: transform .2s var(--ease); display: inline-block; }
.accion-secundaria a:hover { color: var(--c-text); border-bottom-color: var(--c-line-2); }
.accion-secundaria a:hover span { transform: translateX(3px); }

.accion-secundaria--oscura { margin-top: 1.5rem; }
.accion-secundaria--oscura a { color: var(--c-on-dark-muted); }
.accion-secundaria--oscura a:hover { color: #fff; border-bottom-color: rgba(255,255,255,.35); }

/* Franja de datos bajo el hero */
.hero__facts {
  position: relative; z-index: 1;
  border-top: 1px solid var(--c-line);
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(4px);
}
.hero__facts ul {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.hero__facts li {
  display: flex; gap: .85rem; align-items: flex-start;
  padding: 1.6rem clamp(1rem, 2.5vw, 2rem);
  font-size: .93rem; color: var(--c-muted);
  border-left: 1px solid var(--c-line);
  transition: background-color .25s ease, color .25s ease;
}
.hero__facts li:first-child { border-left: 0; padding-left: 0; }
.hero__facts li:hover { background: rgba(22,104,196,.045); color: var(--c-text); }
.hero__facts svg { flex: none; margin-top: .15rem; color: var(--c-accent); transition: transform .25s var(--ease); }
.hero__facts li:hover svg { transform: scale(1.12); }

/* ---------- Secciones ---------- */
.section { padding-block: clamp(4rem, 9vw, 7rem); background: var(--c-bg); }
.section[id], .hero[id] { scroll-margin-top: 86px; }
.section--alt {
  background:
    var(--trama),
    linear-gradient(180deg, var(--c-surface), var(--c-surface-2));
  background-size: var(--trama-size), auto;
  border-block: 1px solid var(--c-line);
}

.section__head { max-width: 44rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section__head h2 {
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.04; letter-spacing: -.005em;
  text-transform: uppercase; font-weight: 600; text-wrap: balance;
  margin: 0 0 1rem; color: var(--c-text);
}
.section__head p { margin: 0; color: var(--c-muted); font-size: 1.04rem; }

/* ---------- Quiénes somos: composición editorial a dos columnas ---------- */
.about {
  display: grid; grid-template-columns: 1fr 1.35fr;
  gap: clamp(2rem, 6vw, 5rem); align-items: start;
}
.about__title { margin: 0; }
.about__title h2 {
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.04;
  text-transform: uppercase; font-weight: 600; text-wrap: balance;
  margin: 0; color: var(--c-text);
}
.about blockquote {
  margin: 0; padding-left: clamp(1.2rem, 2.5vw, 2rem);
  border-left: 2px solid var(--c-accent);
  font-size: clamp(1.08rem, 2vw, 1.35rem); line-height: 1.55; color: var(--c-text);
  font-weight: 300;
}
.about blockquote p { margin: 0 0 1.4rem; }
.about blockquote p:last-child { margin-bottom: 0; color: var(--c-muted); }
.about blockquote strong { color: var(--c-accent); font-weight: 500; }

/* ---------- Servicios: paneles de ficha ----------
   Columnas automáticas: la rejilla se adapta al número de fichas que haya.
   Las fichas se estiran a la misma altura (comportamiento por defecto de la
   rejilla): el catálogo de utillajes va plegado, así que ya no desequilibra. */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--c-surface); padding: clamp(1.7rem, 2.6vw, 2.3rem);
  border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
  display: flex; flex-direction: column; position: relative;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease),
              border-color .25s ease, background-color .25s ease;
}
.card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--c-accent); transform: scaleX(0); transform-origin: left;
  transition: transform .3s ease;
}
.card:hover, .card:focus-within {
  transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #c9d8e8;
}
.card:hover::after, .card:focus-within::after { transform: scaleX(1); }
.card:hover .card__icon { background: var(--c-accent); color: #fff; transform: rotate(-6deg); }

.card__icon {
  width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 1.4rem;
  border-radius: var(--radius);
  color: var(--c-accent); background: rgba(22,104,196,.09);
  transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.card__tag {
  font-family: var(--f-mono); font-size: .66rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--c-dim); display: block; margin-bottom: .55rem;
}
.card h3 {
  font-family: var(--f-display);
  margin: 0 0 .8rem; font-size: 1.5rem; line-height: 1.12; text-transform: uppercase;
  font-weight: 600; color: var(--c-text); letter-spacing: .005em;
}
.card p { margin: 0 0 1.4rem; color: var(--c-muted); font-size: .96rem; }
.card ul {
  margin: auto 0 0; padding: 1.2rem 0 0; list-style: none;
  border-top: 1px solid var(--c-line);
  display: grid; gap: .55rem;
}
.card li {
  font-family: var(--f-mono); font-size: .78rem; line-height: 1.45; color: var(--c-muted);
  padding-left: 1.1rem; position: relative;
}
.card li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 5px; height: 5px; background: var(--c-accent); transform: rotate(45deg);
}
.card__link {
  display: inline-flex; align-items: center; gap: .5rem;
  margin-top: 1.4rem; font-family: var(--f-mono); font-size: .74rem;
  letter-spacing: .1em; text-transform: uppercase; font-weight: 500;
  text-decoration: none; color: var(--c-accent);
}
.card__link span { transition: transform .18s ease; display: inline-block; }
.card__link:hover { color: var(--c-accent-2); }
.card__link:hover span { transform: translateX(4px); }

/* ---------- Catálogo de utillajes: desplegable dentro de la ficha ---------- */
.utillajes { margin-top: 1.5rem; }
.utillajes > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: .7rem;
  padding: .8rem 1rem;
  border: 1px solid var(--c-line); border-radius: var(--radius);
  background: var(--c-surface-2);
  font-family: var(--f-mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--c-muted);
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.utillajes > summary::-webkit-details-marker { display: none; }
.utillajes > summary:hover { border-color: var(--c-accent); color: var(--c-accent); background: rgba(22,104,196,.05); }
.utillajes__titulo { flex: 1; }
.utillajes__contador {
  font-size: .68rem; line-height: 1; padding: .28rem .5rem; border-radius: 99px;
  background: var(--c-accent); color: #fff; letter-spacing: .06em;
}
.utillajes__flecha { flex: none; transition: transform .3s var(--ease); }
.utillajes[open] > summary { border-color: var(--c-accent); color: var(--c-accent); border-radius: var(--radius) var(--radius) 0 0; }
.utillajes[open] .utillajes__flecha { transform: rotate(180deg); }

.utillajes dl {
  margin: 0; padding: 1.4rem 1rem .3rem;
  border: 1px solid var(--c-accent); border-top: 0;
  border-radius: 0 0 var(--radius) var(--radius);
  display: grid; gap: 1.1rem 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
}
.utillajes dt {
  font-family: var(--f-display); font-size: 1.02rem; line-height: 1.2;
  text-transform: uppercase; font-weight: 600; color: var(--c-text);
  padding-left: .85rem; position: relative;
}
.utillajes dt::before {
  content: ""; position: absolute; left: 0; top: .42em;
  width: 5px; height: 5px; background: var(--c-accent); transform: rotate(45deg);
}
.utillajes dd {
  margin: .15rem 0 0 .85rem; font-size: .84rem; line-height: 1.45; color: var(--c-muted);
}
/* El contenido entra con un desplazamiento corto al abrir el desplegable. */
.utillajes[open] dl { animation: desplegar .32s var(--ease); }
@keyframes desplegar {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Contacto ---------- */
.section--contact .section__head h1 {
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.04;
  text-transform: uppercase; font-weight: 600; margin: 0 0 1rem; color: var(--c-text);
}
.contact-tabs {
  display: flex; flex-wrap: wrap; gap: 0;
  margin-bottom: clamp(2rem, 4vw, 3rem); border-bottom: 1px solid var(--c-line);
}
.contact-tabs__link {
  display: inline-block; text-decoration: none;
  font-family: var(--f-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-muted); padding: .85rem 1.3rem; border-radius: var(--radius-xs) var(--radius-xs) 0 0;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color .18s ease, border-color .18s ease;
}
.contact-tabs__link:first-child { padding-left: 0; }
.contact-tabs__link:hover { color: var(--c-text); }
.contact-tabs__link.is-active { color: var(--c-accent); border-bottom-color: var(--c-accent); }

.contact {
  display: grid; grid-template-columns: .85fr 1.25fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: start;
}
.contact__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.contact__list li {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.35rem 0; border-bottom: 1px solid var(--c-line);
}
.contact__list li:first-child { padding-top: 0; }
.contact__list svg { flex: none; margin-top: .2rem; color: var(--c-accent); }
.contact__k {
  font-family: var(--f-mono); font-size: .66rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--c-dim); margin-bottom: .3rem;
}
.contact__v { font-size: 1.02rem; color: var(--c-text); }
.contact__v a { color: var(--c-text); text-decoration: none; border-bottom: 1px solid var(--c-line-2); }
.contact__v a:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.contact__v address { font-style: normal; }

/* ---------- Formularios ---------- */
.form {
  background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.4rem);
  box-shadow: var(--shadow-lg);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field { margin-bottom: 1.15rem; display: flex; flex-direction: column; }
.field label {
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-muted); margin-bottom: .5rem;
}
.field .req { color: var(--c-signal); }
.field input, .field textarea, .field select {
  font-family: var(--f-body); font-size: .98rem; color: var(--c-text);
  padding: .8rem .95rem; border: 1px solid var(--c-line-2); border-radius: var(--radius-xs);
  background: var(--c-surface-2); width: 100%;
  transition: border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--c-dim); }
.field input:hover, .field textarea:hover, .field select:hover { border-color: #a6bbd1; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--c-accent); background: #fff;
  box-shadow: 0 0 0 3px rgba(22,104,196,.14);
}
.field textarea { resize: vertical; min-height: 140px; }
.field select {
  appearance: none; cursor: pointer; padding-right: 2.4rem;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--c-muted) 50%),
    linear-gradient(135deg, var(--c-muted) 50%, transparent 50%);
  background-position: calc(100% - 1.1rem) 1.25rem, calc(100% - .75rem) 1.25rem;
  background-size: 6px 6px, 6px 6px; background-repeat: no-repeat;
}

.form .consent {
  display: flex; flex-wrap: wrap; gap: .7rem; align-items: flex-start;
  font-size: .87rem; color: var(--c-muted); margin-bottom: 1.4rem;
}
/* El texto se queda junto a la casilla y solo el aviso de error salta de línea:
   sin esto, con flex-wrap el párrafo entero caía debajo de la casilla. */
.form .consent > span { flex: 1 1 0; min-width: 0; }
.form .consent .field__error { flex: 0 0 100%; margin-left: 0; }
.form .consent input { margin-top: .3rem; flex: none; width: auto; accent-color: var(--c-accent); }
.form .btn { width: 100%; }
.form__note {
  margin: .9rem 0 0; font-family: var(--f-mono); font-size: .7rem;
  letter-spacing: .04em; color: var(--c-dim); text-align: center;
}
/* --- Campos con error --- */
.field.is-invalid input, .field.is-invalid textarea, .field.is-invalid select {
  border-color: #c0392b; background: #fdf3f2;
}
.field.is-invalid input:focus, .field.is-invalid textarea:focus, .field.is-invalid select:focus {
  border-color: #c0392b; box-shadow: 0 0 0 3px rgba(192,57,43,.14);
}
.field.is-invalid label { color: #a83226; }
.consent.is-invalid { color: #a83226; }
.consent.is-invalid input { outline: 2px solid #c0392b; outline-offset: 2px; }
.field__error {
  margin: .45rem 0 0; font-size: .8rem; line-height: 1.35; color: #a83226;
  display: flex; align-items: flex-start; gap: .4rem;
}
.field__error::before { content: "!"; font-family: var(--f-mono); font-weight: 500; flex: none; }

.form__status { margin: 1.1rem 0 0; font-size: .92rem; padding: .85rem 1rem; border-radius: var(--radius); display: none; }
.form__status:focus-visible { outline-offset: 2px; }
.form__status.is-ok  { display: block; background: #e7f5ec; color: #1c5c34; border: 1px solid #bfdfcb; }
.form__status.is-err { display: block; background: #fdecea; color: #8c2f2a; border: 1px solid #f1c6c2; }
.hp { position: absolute; left: -9999px; }

/* ---------- Banda CTA: bloque oscuro de contraste ---------- */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--c-dark); color: var(--c-on-dark); text-align: center;
  padding-block: clamp(4rem, 9vw, 6.5rem);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background-image: var(--trama-oscura); background-size: var(--trama-size);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 50%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 100% at 50% 50%, #000, transparent 75%);
}
.cta-band::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle 34vw at 50% 120%, rgba(77,154,232,.22) 0%, transparent 65%);
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band .eyebrow { justify-content: center; margin-bottom: 1rem; color: var(--c-accent-3); }
.cta-band h2 {
  font-family: var(--f-display);
  font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.02; text-transform: uppercase;
  font-weight: 600; margin: 0 0 1.1rem; color: #fff; text-wrap: balance;
}
.cta-band__lead { margin: 0 auto 2.4rem; max-width: 34rem; color: var(--c-on-dark-muted); font-size: 1.04rem; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: center; margin-bottom: 2rem; }
.cta-band__direct { margin: 0; font-family: var(--f-mono); font-size: .78rem; color: var(--c-on-dark-muted); letter-spacing: .03em; }
.cta-band__direct a { color: var(--c-on-dark); text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.25); }
.cta-band__direct a:hover { color: #fff; border-bottom-color: #fff; }

/* ---------- Pie: el segundo bloque oscuro ---------- */
.site-footer {
  background: var(--c-dark); color: var(--c-on-dark-muted); font-size: .92rem;
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.site-footer a { color: var(--c-on-dark-muted); text-decoration: none; transition: color .18s ease; }
.site-footer a:hover { color: var(--c-accent-3); }
.footer__grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem;
  padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__grid h2 {
  margin: 0 0 1.1rem; font-family: var(--f-mono); font-size: .66rem;
  letter-spacing: .2em; text-transform: uppercase; color: #7e93aa; font-weight: 500;
}
.footer__grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .65rem; }
.footer__brand .brand__logo { height: 26px; color: #fff; }
.footer__brand p { margin: 1rem 0 0; max-width: 24rem; color: #8ea2b8; font-size: .92rem; }
.footer__legal {
  padding-top: 1.5rem; display: flex; flex-wrap: wrap; gap: .6rem 1.5rem;
  justify-content: space-between; color: #7e93aa;
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .04em;
}

/* ---------- Páginas legales ---------- */
.legal { padding-block: clamp(3rem, 7vw, 5rem); background: var(--c-bg); }
.legal .wrap { max-width: 46rem; }
.legal h1 {
  font-family: var(--f-display); font-size: clamp(2rem, 5vw, 3rem);
  text-transform: uppercase; font-weight: 600; color: var(--c-text); margin: 0 0 .6rem;
}
.legal .updated { font-family: var(--f-mono); color: var(--c-dim); font-size: .76rem; letter-spacing: .06em; margin: 0 0 3rem; }
.legal h2 {
  font-family: var(--f-display); font-size: 1.45rem; text-transform: uppercase;
  font-weight: 600; color: var(--c-accent); margin: 2.8rem 0 .9rem;
}
.legal p, .legal li { color: var(--c-muted); }
.legal strong { color: var(--c-text); }
.tabla-scroll {
  overflow-x: auto; margin: 1.4rem 0;
  border-radius: var(--radius-xs);
  -webkit-overflow-scrolling: touch;
}
.legal table {
  width: 100%; border-collapse: collapse; margin: 0; font-size: .92rem;
  background: var(--c-surface); min-width: 22rem;
}
.legal th, .legal td { text-align: left; padding: .75rem .9rem; border: 1px solid var(--c-line); vertical-align: top; color: var(--c-muted); }
.legal th {
  background: var(--c-bg-2); color: var(--c-text); font-weight: 500;
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase;
}
.legal .back { margin-top: 3rem; }
.nav--simple { gap: 1.6rem; flex-wrap: wrap; justify-content: flex-end; }

/* ---------- Revelado al entrar en pantalla ----------
   Solo se oculta si el JS ha marcado el documento: sin JS, todo visible. */
.js-anim .reveal { opacity: 0; transform: translateY(18px); }
.js-anim .reveal.is-in {
  opacity: 1; transform: none;
  transition: opacity .6s ease, transform .6s cubic-bezier(.22,.61,.36,1);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about, .contact { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__facts ul { grid-template-columns: 1fr; }
  .hero__facts li { border-left: 0; border-top: 1px solid var(--c-line); padding: 1.1rem 0; }
  .hero__facts li:first-child { border-top: 0; }
}

/* Menú plegable: el umbral debe coincidir con esMovil() en main.js */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav:not(.nav--simple) {
    position: absolute; top: 74px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-block: 1px solid var(--c-line);
    padding: .5rem var(--pad) 1.2rem;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-lg);
  }
  .nav[hidden] { display: none; }
  .nav:not(.nav--simple) a:not(.nav__cta) { padding: .95rem 0; border-bottom: 1px solid var(--c-line); }
  .nav__cta { margin: 1rem 0 .25rem; justify-content: center; padding: .95rem 1.35rem; }
}

/* Por debajo de 430px el rótulo "Ingeniería" ya no cabe junto al logotipo y
   el botón de menú: el logotipo ya dice ARVEX, así que se oculta. */
@media (max-width: 430px) {
  .brand__sub { display: none; }
  .nav--simple { gap: .9rem; font-size: .9rem; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__legal { flex-direction: column; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js-anim .reveal { opacity: 1; transform: none; }
}

/* ---------- Banner de cookies ----------
   Solo aparece si assets/js/cookies.js tiene analítica configurada.
   Los dos botones tienen el mismo tamaño y están juntos: rechazar debe costar
   lo mismo que aceptar. */
.cookies {
  position: fixed; left: var(--pad); right: var(--pad); bottom: var(--pad); z-index: 90;
  max-width: 42rem; margin-inline: auto;
  display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: center; justify-content: space-between;
  background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: 1.2rem 1.4rem;
  animation: cookies-entra .35s var(--ease);
}
.cookies__texto { flex: 1 1 18rem; }
.cookies__texto p { margin: 0; font-size: .88rem; line-height: 1.5; color: var(--c-muted); }
.cookies__texto strong { color: var(--c-text); }
.cookies__enlace { margin-top: .4rem !important; font-size: .82rem !important; }
.cookies__acciones { display: flex; gap: .6rem; flex: 0 0 auto; }
.cookies__acciones .btn { flex: 1 1 auto; }

@keyframes cookies-entra {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

@media (max-width: 560px) {
  .cookies { padding: 1.1rem; }
  .cookies__acciones { width: 100%; }
}

@media (prefers-reduced-motion: reduce) { .cookies { animation: none; } }

/* ---------- Impresión ----------
   Los textos legales se imprimen y se archivan: fuera cromos y navegación. */
@media print {
  .site-header, .site-footer, .skip, .cta-band, .hero__facts, .accion-secundaria,
  .legal .back { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .legal { padding-block: 0; background: #fff; }
  .legal .wrap { max-width: none; padding-inline: 0; }
  .legal h1, .legal h2 { color: #000; }
  .legal p, .legal li, .legal th, .legal td { color: #1a1a1a; }
  .legal table { background: #fff; page-break-inside: avoid; }
  .tabla-scroll { overflow: visible; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; color: #555; }
}