/* ACE Electronics — hoja de estilos
   Sistema: design-system/ace-electronics/MASTER.md (adaptado)
   Tipografía: IBM Plex Sans. Un solo acento (azul de acción). */

:root {
  --ink: #0B1B33;        /* navy profundo, texto y superficies oscuras */
  --ink-soft: #1C2E4A;
  --paper: #F5F7FA;      /* fondo de página */
  --white: #FFFFFF;
  --steel: #D3DAE3;      /* líneas y bordes */
  --slate: #56657A;      /* texto secundario */
  --signal: #1B4FD8;     /* acción */
  --signal-strong: #153FB0;
  --danger: #B42318;

  --font: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --measure: 62ch;

  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2.5rem;
  --s-5: 4rem;
  --s-6: 6rem;
  --s-7: 8rem;

  --gutter: clamp(1.25rem, 3.5vw, 3rem);   /* 48px en escritorio */
  --nav-h: 4.5rem;
  --ease: cubic-bezier(.2,.7,.2,1);
}

*, *::before, *::after { box-sizing: border-box; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; overflow-x: clip;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern", "liga";
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0 0 var(--s-2); max-width: var(--measure); }
h1, h2, h3 { margin: 0; font-weight: 300; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(2.5rem, 6vw, 4.75rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); margin-bottom: var(--s-3); max-width: 24ch; }
h3 { font-size: 1.375rem; font-weight: 500; letter-spacing: -0.01em; margin-bottom: var(--s-1); }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: calc(100% - 2 * var(--gutter)); margin-inline: auto; }

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

.skip {
  position: absolute; left: var(--s-2); top: -100px;
  background: var(--ink); color: var(--white); padding: .6rem 1rem; z-index: 100;
}
.skip:focus { top: var(--s-2); }

/* Botones y enlaces */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  min-height: 3rem; padding: 0 1.4rem;
  font: inherit; font-weight: 500; font-size: 1rem; line-height: 1;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn--primary { background: var(--signal); color: var(--white); }
.btn--primary:hover { background: var(--signal-strong); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--white); }
.btn--nav { min-height: 2.5rem; padding: 0 1.1rem; font-size: .95rem; }

.link {
  color: var(--signal); font-weight: 500; text-decoration: none;
  border-bottom: 1px solid currentColor; padding-bottom: 1px;
  transition: color .2s var(--ease);
}
.link:hover { color: var(--signal-strong); }

/* Navegación */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245,247,250,.88);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--steel); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--nav-h); gap: var(--s-3); }
.brand { text-decoration: none; display: inline-flex; align-items: center; color: inherit; }
.brand__logo { height: 2.25rem; width: auto; display: block; }
.footer .brand__logo { height: 2.5rem; }
.nav__menu { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2rem); }
.nav__menu > a:not(.btn) {
  text-decoration: none; font-size: .95rem; color: var(--ink-soft);
  padding: .5rem 0; border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.nav__menu > a:not(.btn):hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav__toggle {
  display: none; width: 2.75rem; height: 2.75rem; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--steel); color: var(--ink); cursor: pointer;
}
.nav__toggle .ico-close { display: none; }
.nav__toggle[aria-expanded="true"] .ico-open { display: none; }
.nav__toggle[aria-expanded="true"] .ico-close { display: block; }

/* Hero: el titular se apoya en la pared clara de la foto */
.hero { position: relative; min-height: min(calc(100vh - var(--nav-h)), 44rem); min-height: min(calc(100svh - var(--nav-h)), 44rem); display: grid; align-items: center; overflow: hidden; background: #E9EEF4; }
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: 78% 50%; }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(240,244,248,.94) 0%, rgba(240,244,248,.82) 36%, rgba(240,244,248,0) 64%);
}
.hero__content { position: relative; padding-block: var(--s-6); }
.hero__content h1 { max-width: 14ch; }
.hero__lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); margin-top: var(--s-3); max-width: 48ch; color: var(--ink-soft); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-top: var(--s-4); }

@media (prefers-reduced-motion: no-preference) {
  .hero__content > * { animation: rise .7s var(--ease) both; }
  .hero__content > :nth-child(2) { animation-delay: .1s; }
  .hero__content > :nth-child(3) { animation-delay: .2s; }
  .hero__media { animation: fade 1s var(--ease) both; }
}
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* Cifras: banda oscura, números grandes en peso medio */
.hero__phone { margin: var(--s-3) 0 0; font-size: .95rem; color: var(--ink-soft); }
.hero__phone a { font-weight: 500; text-decoration: none; }
.hero__phone a:hover { text-decoration: underline; }

.stats { background: var(--ink); color: var(--white); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); padding-block: var(--s-5); }
.stat { display: grid; gap: .35rem; padding-right: var(--s-3); }
.stat + .stat { border-left: 1px solid rgba(255,255,255,.18); padding-left: var(--s-3); }
.stat strong { font-weight: 500; font-size: clamp(2.25rem, 4vw, 3.25rem); line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat > span { color: rgba(255,255,255,.72); font-size: .95rem; line-height: 1.45; max-width: 22ch; }
.stat strong .num { display: inline-block; min-width: 1ch; }
@media (prefers-reduced-motion: no-preference) {
  .stat { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
  .stat:nth-child(2) { transition-delay: .1s; }
  .stat:nth-child(3) { transition-delay: .2s; }
  .stat:nth-child(4) { transition-delay: .3s; }
  .stats.is-visible .stat { opacity: 1; transform: none; }
}

/* Secciones */
.section { padding-block: var(--s-7); }
.section--tint { background: var(--white); border-block: 1px solid var(--steel); }
.section__head { margin-bottom: var(--s-5); }
.section__head p { color: var(--slate); font-size: 1.125rem; }

/* Soluciones: imagen + título + texto, sin tarjetas */
.solutions { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
.solution img { aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: var(--s-3); background: var(--steel); }
.solution p { color: var(--slate); font-size: 1rem; }

/* Galería de campo: tres columnas iguales, pies alineados */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
.gallery__item { margin: 0; display: grid; grid-template-rows: auto 1fr; gap: .75rem; min-width: 0; }
.gallery__item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: var(--steel); }
.gallery__item figcaption { font-size: .95rem; color: var(--slate); line-height: 1.5; }

/* Bloques imagen / texto */
.split { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(var(--s-4), 6vw, var(--s-6)); align-items: center; }
.split--reverse { grid-template-columns: 7fr 5fr; }
.split--reverse .split__media { order: 2; }
.split__media { margin: 0; }
.split__media img { width: 100%; max-height: 40rem; object-fit: cover; }
.split__media--full img { max-height: none; object-fit: contain; height: auto; }   /* foto completa, sin recorte */
.split__body p { color: var(--ink-soft); }

.list { margin: var(--s-3) 0 var(--s-4); border-top: 1px solid var(--steel); max-width: var(--measure); }
.list li { padding: .85rem 0; border-bottom: 1px solid var(--steel); }

.meta { display: grid; gap: var(--s-2); margin: var(--s-4) 0 0; border-top: 1px solid var(--steel); padding-top: var(--s-3); }
.meta div { display: grid; grid-template-columns: 7rem 1fr; gap: var(--s-2); }
.meta dt { color: var(--slate); }
.meta dd { margin: 0; }

/* Tabla de equipos */
.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-3); margin-bottom: var(--s-5); }
.product { display: grid; grid-template-rows: auto auto 1fr; gap: .5rem; }
.product__media { background: var(--white); border: 1px solid var(--steel); aspect-ratio: 1; padding: 12%; margin-bottom: var(--s-2); }
.product__media img { width: 100%; height: 100%; object-fit: contain; }
.product h3 { font-size: 1.1rem; margin: 0; }
.product p { margin: 0; font-size: .95rem; color: var(--slate); }
.products__more { font-size: 1rem; font-weight: 500; color: var(--slate); margin: 0 0 var(--s-2); }
.table-wrap { overflow-x: auto; border-top: 1px solid var(--ink); }
.spec { width: 100%; border-collapse: collapse; font-size: 1rem; min-width: 46rem; }
.spec th, .spec td { text-align: left; padding: .95rem 1rem .95rem 0; border-bottom: 1px solid var(--steel); vertical-align: top; }
.spec thead th { font-weight: 500; color: var(--slate); font-size: .9rem; padding-top: .8rem; }
.spec tbody th { font-weight: 500; }
.spec td { color: var(--ink-soft); }
.spec tbody tr:hover { background: var(--white); }
.note { margin-top: var(--s-3); color: var(--slate); }

/* Contacto */
.contact { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(var(--s-4), 6vw, var(--s-6)); align-items: start; }
.contact__intro p { color: var(--ink-soft); }
.contact__data { font-style: normal; margin-top: var(--s-4); border-top: 1px solid var(--steel); }
.contact__data p { display: grid; grid-template-columns: 6rem 1fr; gap: var(--s-2); margin: 0; padding: .8rem 0; border-bottom: 1px solid var(--steel); max-width: none; }
.contact__data span { color: var(--slate); }
.contact__data a { text-decoration: none; overflow-wrap: anywhere; }
.contact__data a:hover { text-decoration: underline; }

.form { display: grid; gap: var(--s-3); }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); }
.form__row { display: grid; gap: .45rem; }
.form label { font-size: .95rem; font-weight: 500; }
.form input, .form textarea {
  font: inherit; font-size: max(1rem, 1em); -webkit-appearance: none; appearance: none; border-radius: 0; color: var(--ink); background: var(--white);
  border: 1px solid var(--steel); padding: .8rem .9rem; min-height: 3rem; width: 100%;
  transition: border-color .2s var(--ease);
}
.form textarea { resize: vertical; }
.form input:hover, .form textarea:hover { border-color: var(--slate); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px rgba(27,79,216,.15); }
.form__hint { font-size: .9rem; color: var(--slate); margin: 0; }
.form__error { color: var(--danger); margin: 0; font-size: .95rem; }
.form .btn { justify-self: start; }


/* Marcas: carrusel con controles, pausa en hover/foco */
.brands { background: var(--white); border-block: 1px solid var(--steel); padding-block: var(--s-5); }
.brands__inner { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(var(--s-4), 5vw, var(--s-6)); align-items: center; }
.brands__intro h2 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); margin-bottom: var(--s-2); }
.brands__intro p { color: var(--slate); font-size: 1rem; margin: 0; }
.carousel { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--s-2); min-width: 0; }
.carousel__btn {
  width: 2.75rem; height: 2.75rem; display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--steel); color: var(--ink); cursor: pointer; border-radius: 999px;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.carousel__btn:hover { border-color: var(--ink); background: var(--paper); }
.carousel__track {
  display: flex; gap: var(--s-4); overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
  padding-block: var(--s-2); min-width: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__track li { flex: 0 0 auto; display: flex; align-items: center; height: 4.25rem; }
.carousel__track img { height: 3.5rem; width: auto; max-width: 12rem; object-fit: contain; filter: grayscale(1); opacity: .85; transition: filter .25s var(--ease), opacity .25s var(--ease); }
.carousel__track li:hover img, .carousel:focus-within img { filter: none; opacity: 1; }

/* Preguntas frecuentes: acordeón nativo */
.faq { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(var(--s-4), 6vw, var(--s-6)); align-items: start; }
.faq__intro p { color: var(--slate); font-size: 1.125rem; }
.faq__list { border-top: 1px solid var(--ink); }
.faq__item { border-bottom: 1px solid var(--steel); }
.faq__item summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--s-3);
  padding: 1.1rem 0; font-weight: 500; font-size: 1.05rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: ""; flex: 0 0 auto; width: .8rem; height: .8rem;
  border-right: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink);
  transform: rotate(45deg); margin-right: .3rem; transition: transform .2s var(--ease);
}
.faq__item[open] summary::after { transform: rotate(-135deg); }
.faq__item summary:hover { color: var(--signal); }
.faq__body { padding: 0 0 1.25rem; }
.faq__body p { color: var(--ink-soft); margin: 0; max-width: 60ch; }

/* Revelado al hacer scroll */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); transition-delay: var(--d, 0s); }
  .reveal.is-in { opacity: 1; transform: none; }
}

/* Área táctil mínima para enlaces en línea (44px) */
.hero__phone a, .contact__data a, .note .link, .split__body .link { display: inline-block; padding-block: .55rem; margin-block: -.55rem; }

/* Pie */
.footer { background: var(--ink); color: rgba(255,255,255,.72); padding-block: var(--s-5) 5.5rem; font-size: .95rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--s-4) var(--s-5); }
.footer p { margin: 0; }
.footer__name { color: var(--white); font-size: 1.25rem; line-height: 1.3; }
.footer__tag { font-size: .8rem; color: rgba(255,255,255,.55); margin-bottom: var(--s-3) !important; }
.footer__desc { max-width: 38ch; line-height: 1.7; }
.footer__col h2 { margin: 0 0 var(--s-2); font-size: 1.05rem; font-weight: 600; color: var(--white); }
.footer__col a { display: block; color: inherit; text-decoration: none; padding-block: .35rem; }
.footer__col a:hover { color: var(--white); text-decoration: underline; }
.footer__contact p { margin-bottom: var(--s-2); line-height: 1.6; }
.footer__contact p span { display: block; color: var(--white); font-weight: 600; font-size: .85rem; margin-bottom: .1rem; }
.footer__contact a { padding-block: .15rem; overflow-wrap: anywhere; }
.footer__bottom { margin-top: var(--s-5); padding-top: var(--s-3); border-top: 1px solid rgba(255,255,255,.14); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-1) var(--s-3); font-size: .9rem; color: rgba(255,255,255,.6); }

/* WhatsApp flotante con globo de bienvenida */
.wa { position: fixed; right: var(--s-3); bottom: var(--s-3); right: max(var(--s-3), env(safe-area-inset-right)); bottom: max(var(--s-3), env(safe-area-inset-bottom)); z-index: 40; display: flex; flex-direction: column; align-items: flex-end; gap: .75rem; }
.wa__btn {
  display: inline-flex; align-items: center; gap: .55rem;
  min-height: 3.25rem; padding: 0 1.1rem 0 .9rem;
  background: var(--ink); color: var(--white); font: inherit; font-weight: 500; border: 0; cursor: pointer;
  border-radius: 999px; box-shadow: 0 6px 20px rgba(11,27,51,.22);
  transition: background-color .2s var(--ease), transform .2s var(--ease);
}
.wa__btn:hover { background: var(--ink-soft); transform: translateY(-1px); }
.wa__panel {
  width: min(22rem, calc(100vw - 2 * var(--s-3))); background: var(--white); border: 1px solid var(--steel);
  border-radius: 12px; box-shadow: 0 16px 40px rgba(11,27,51,.18); overflow: hidden;
}
@media (prefers-reduced-motion: no-preference) {
  .wa__panel { animation: rise .25s var(--ease) both; }
}
.wa__head { display: flex; align-items: center; gap: .75rem; padding: .9rem 1rem; background: var(--ink); color: var(--white); }
.wa__avatar { width: 2.25rem; height: 2.25rem; border-radius: 50%; background: var(--signal); display: grid; place-items: center; font-weight: 600; flex: 0 0 auto; }
.wa__name { margin: 0; font-weight: 500; line-height: 1.2; }
.wa__status { margin: 0; font-size: .8rem; color: rgba(255,255,255,.72); line-height: 1.2; }
.wa__close { margin-left: auto; width: 2.25rem; height: 2.25rem; display: inline-flex; align-items: center; justify-content: center; background: none; border: 0; color: var(--white); cursor: pointer; border-radius: 50%; }
.wa__close:hover { background: rgba(255,255,255,.12); }
.wa__body { padding: 1rem; background: var(--paper); }
.wa__bubble { background: var(--white); border: 1px solid var(--steel); border-radius: 10px 10px 10px 2px; padding: .8rem .9rem; font-size: .95rem; line-height: 1.5; }
.wa__bubble p { margin: 0 0 .6rem; }
.wa__bubble p:last-child { margin: 0; }
.wa__start {
  display: flex; align-items: center; justify-content: center; gap: .55rem; margin: 0 1rem 1rem;
  min-height: 2.9rem; background: var(--signal); color: var(--white); text-decoration: none; font-weight: 500; border-radius: 8px;
  transition: background-color .2s var(--ease);
}
.wa__start:hover { background: var(--signal-strong); }

/* Responsive */
@media (max-width: 64rem) {
  .stats__grid { grid-template-columns: 1fr 1fr; row-gap: var(--s-4); }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .brands__inner, .faq { grid-template-columns: 1fr; }
  .solutions { grid-template-columns: 1fr; gap: var(--s-5); }
  .gallery { grid-template-columns: 1fr; gap: var(--s-4); }
  .gallery__item img { aspect-ratio: 16 / 9; }
  .solution img { aspect-ratio: 16 / 9; }
  .split, .split--reverse, .contact { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .split__media img { max-height: 28rem; }
  .split__media--full { max-width: 26rem; }
  .split__media--full img { max-height: none; }
  .section { padding-block: var(--s-6); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .products { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 48rem) {
  .nav__toggle { display: inline-flex; }
  .nav__menu {
    display: none; position: absolute; left: 0; right: 0; top: var(--nav-h);
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--steel);
    padding: var(--s-2) var(--gutter) var(--s-3);
  }
  .nav__menu.is-open { display: flex; }
  .nav__menu > a:not(.btn) { padding: .9rem 0; border-bottom: 1px solid var(--steel); font-size: 1.05rem; }
  .nav__menu .btn { margin-top: var(--s-2); justify-content: center; }

  .split__media--full { max-width: none; }
  .hero { min-height: 0; }
  .hero__media { position: relative; height: 15rem; order: 2; }
  .hero__media::after { display: none; }
  .hero__content { padding-block: var(--s-5) var(--s-4); }
  .hero__content h1 { max-width: none; }

  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-4) var(--s-3); }
  .products { gap: var(--s-3) var(--s-2); }
  .footer__brand, .footer__contact { grid-column: 1 / -1; }
  .footer__bottom { flex-direction: column; }
  .stats__grid { grid-template-columns: 1fr; row-gap: 0; padding-block: var(--s-3); }
  .stat { padding: var(--s-3) 0; border-left: 0 !important; padding-left: 0 !important; }
  .stat + .stat { border-top: 1px solid rgba(255,255,255,.18); }
  .carousel { gap: .5rem; }
  .carousel__btn { width: 2.5rem; height: 2.5rem; }
  .carousel__track { gap: var(--s-4); }

  .form__grid { grid-template-columns: 1fr; }
  .contact__data p, .meta div { grid-template-columns: 1fr; gap: .15rem; }
  .wa__btn span { display: none; }
  .wa__btn { padding: 0; width: 3.25rem; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; animation: none !important; }
}