/* ============================================================================
   LANT AUDIO — styles.css
   Todo lo que no es token. Los overrides de contraste (si hicieran falta) viven
   aquí, NO en tokens.css. Móvil primero; clamp() hace el resto sin breakpoints.
   ========================================================================== */

/* ---- Reset --------------------------------------------------------------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ---- Accesibilidad: skip link ------------------------------------------- */
.skip-link {
  position: absolute; left: 8px; top: -60px; z-index: 200;
  background: var(--accent); color: var(--text-on-orange);
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-weight: 700; font-size: var(--fs-sm); letter-spacing: var(--ls-wide);
  transition: top var(--duration-base) var(--ease-standard);
}
.skip-link:focus { top: 8px; }

/* ---- Layout primitives --------------------------------------------------- */
.wrap { width: 100%; max-width: var(--wrap-max); margin-inline: auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: var(--wrap-narrow); }
.section { padding-block: var(--section-y); position: relative; }
.section + .section { border-top: 0.5px solid var(--border-subtle); }

.eyebrow {
  display: inline-block;
  font-size: var(--fs-eyebrow); font-weight: 700;
  letter-spacing: var(--ls-widest); text-transform: uppercase;
  color: var(--accent); margin-bottom: 1rem;
}
.eyebrow::before { content: "[ "; opacity: .6; }
.eyebrow::after  { content: " ]"; opacity: .6; }

.section-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: var(--fs-h2); letter-spacing: var(--ls-tight); line-height: 1.1;
  color: var(--text); text-wrap: balance;
}
.section-lead { color: var(--text-secondary); font-size: var(--fs-lead); max-width: 56ch; margin-top: 1rem; }

/* ---- Botones / CTA ------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  font-size: var(--fs-sm); font-weight: 700;
  letter-spacing: var(--ls-wide); text-transform: uppercase;
  padding: 1rem 1.75rem; border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: var(--text-on-orange); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--ghost { border: 1px solid var(--lant-gray-500); color: var(--text); } /* borde ≥3:1 sobre negro (afordancia) */
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
/* CTAs de WhatsApp: estándar de la casa (data-cta="whatsapp" + fallback local
   href="#calculadora" + data-pending). Mientras no haya número son enlaces VIVOS
   al embudo, no muertos, así que no requieren estilo de "deshabilitado". */

/* ---- Header sticky (logo blanco↔color) ---------------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding-block: 1.1rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard),
              padding var(--duration-base) var(--ease-standard);
}
/* el interior va en .wrap para alinearse con el contenido y el footer */
.site-header__inner { display: flex; align-items: center; justify-content: space-between; }
.site-header.is-scrolled {
  background: rgba(0, 0, 0, .88);                        /* fallback sin color-mix */
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom-color: var(--border-subtle);
  padding-block: .8rem;
}
.brand-mark {
  display: inline-flex; align-items: center;
  font-family: var(--font-display); font-weight: 700;
  font-size: 1rem; letter-spacing: var(--ls-widest); text-transform: uppercase;
  color: var(--text);                 /* fallback si el logo no carga */
  transition: color var(--duration-base) var(--ease-standard);
}
.site-header.is-scrolled .brand-mark { color: var(--accent); }
/* Logo oficial (variante blanca+naranja para fondos oscuros, del brand manual) */
.brand-logo { height: 38px; width: auto; display: block; }
.brand-logo--sm { height: 30px; }
.site-header .brand-logo { transition: transform var(--duration-base) var(--ease-standard); }
.site-header.is-scrolled .brand-logo { transform: scale(.92); }

.site-nav { display: flex; align-items: center; gap: 1.75rem; }
.site-nav a {
  font-size: var(--fs-sm); font-weight: 600; color: var(--text-secondary);
  letter-spacing: .02em; transition: color var(--duration-fast) var(--ease-standard);
}
.site-nav a:hover { color: var(--text); }
.site-nav .btn { padding: .7rem 1.2rem; }
.site-nav__lang {
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: var(--ls-wide);
  color: var(--text-muted); border: 1px solid var(--border);
  padding: .35rem .6rem; border-radius: var(--radius-sm);
}
.site-nav__lang:hover { color: var(--accent); border-color: var(--accent); }

.nav-toggle { display: none; position: relative; z-index: 101; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 22px; height: 2px; background: var(--text);
  transition: transform var(--duration-base) var(--ease-standard), opacity var(--duration-fast);
}
.nav-toggle span::before { transform: translateY(-7px); }
.nav-toggle span::after  { transform: translateY(5px); }

@media (max-width: 820px) {
  .js .nav-toggle { display: inline-flex; }   /* sin JS no se muestra un control inerte */
  .site-nav {
    position: fixed; inset: 0 0 0 auto; width: min(80vw, 320px);
    flex-direction: column; align-items: flex-start; justify-content: center; gap: 1.5rem;
    padding: 2rem var(--gutter);
    background: var(--bg-elevated); border-left: 1px solid var(--border);
    transform: translateX(100%); visibility: hidden;    /* fuera del tab order al estar cerrado */
    transition: transform var(--duration-base) var(--ease-standard),
                visibility var(--duration-base) var(--ease-standard);
  }
  html.nav-open .site-nav { transform: translateX(0); visibility: visible; }
  html.nav-open body { overflow: hidden; }              /* bloquea scroll de fondo */
  html.nav-open .nav-toggle span { background: transparent; }
  html.nav-open .nav-toggle span::before { transform: rotate(45deg); }
  html.nav-open .nav-toggle span::after  { transform: rotate(-45deg); }
}

/* ---- Hero ---------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-block: clamp(6rem, 14vh, 10rem) var(--section-y);
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: -2; background: var(--lant-black); }
.hero__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 62% center; }
/* Overlay: oscurece la izquierda (contraste del titular) + funde al fondo abajo */
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.9) 0%, rgba(0,0,0,.55) 42%, rgba(0,0,0,.12) 100%),
    linear-gradient(180deg, transparent 52%, var(--bg) 100%);
}
.hero__eyebrow { color: var(--accent); }
.hero__title {
  font-family: var(--font-display); font-weight: 800;
  font-size: var(--fs-display); letter-spacing: var(--ls-tight); line-height: .95;
  text-transform: uppercase;
}
.hero__subtitle { font-size: var(--fs-lead); color: var(--text); margin-top: 1.25rem; font-weight: 500; }
.hero__support { color: var(--text-secondary); margin-top: .75rem; max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.25rem; }

/* ---- Hero · fila de marcas de equipo -------------------------------------
   Sustituye la vieja línea de stats. Los archivos de assets/marcas/ ya vienen
   en BLANCO con alfa (96 px de alto), así que no hace falta ningún filtro de
   color; SRYLED tampoco entra con su rojo. Dos cosas sí se afinan:
   (a) altura ÓPTICA por marca — los ratios nativos van de ~1:1 (HK Audio) a
       7.4:1 (dBTechnologies) y una altura única desbalancea la fila; y
   (b) legibilidad: el degradado del hero solo baja al 12 % en el borde
       derecho, así que cada logo lleva su propia sombra de apoyo.
   Nombre .hero__logo (no .hero__brand) para no confundirlo con .brand-logo,
   que es el logotipo PROPIO de LANT. */
.hero__logos {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: clamp(1rem, 2.5vw, 2.2rem);
  margin-top: clamp(2.5rem, 7vh, 4.5rem);
  padding-top: 1.5rem; border-top: 0.5px solid var(--border);
}
.hero__logos li { display: flex; align-items: center; }
.hero__logo {
  height: var(--logo-h, 26px);
  width: auto;                      /* el reset global pone height:auto; aquí mandamos nosotros */
  opacity: .62;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, .75));
  transition: opacity var(--duration-base) var(--ease-standard);
}
.hero__logos li:hover .hero__logo { opacity: 1; }
/* Altura óptica por marca (ratios medidos del archivo) */
.hero__logo--db         { --logo-h: 18px; }   /* 710×96 · el más ancho */
.hero__logo--hk         { --logo-h: 34px; }   /*  95×96 · casi cuadrado */
.hero__logo--shure      { --logo-h: 21px; }   /* 542×96 */
.hero__logo--soundcraft { --logo-h: 26px; }   /* 384×96 · lleva bajada "by HARMAN" */
.hero__logo--sryled     { --logo-h: 26px; }   /* 380×96 · lleva bajada */
.hero__logo--behringer  { --logo-h: 30px; }   /* 119×96 */
@media (max-width: 820px) {
  .hero__logos { gap: .9rem 1.4rem; margin-top: clamp(1.75rem, 4vh, 2.5rem); padding-top: 1.1rem; }
  .hero__logo { height: calc(var(--logo-h, 26px) * .8); }
}
@media (prefers-reduced-motion: reduce) { .hero__logo { transition: none; } }

/* ---- Section shell (placeholders de Fase 3) ------------------------------ */
.shell__note {
  margin-top: 1.5rem; font-size: var(--fs-sm); color: var(--text-muted);
  border: 1px dashed var(--border); border-radius: var(--radius-md);
  padding: 1rem 1.25rem; display: inline-block;
}

/* ---- Footer -------------------------------------------------------------- */
.site-footer {
  padding-block: clamp(3rem, 7vw, 4.5rem);
  border-top: 0.5px solid var(--border);
  color: var(--text-muted); font-size: var(--fs-sm);
}
.site-footer .brand-mark { color: var(--accent); font-size: .9rem; }
.site-footer__row { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; justify-content: space-between; }
.site-footer a:hover { color: var(--text); }
.site-footer__contact { display: flex; flex-wrap: wrap; gap: .25rem .5rem; align-items: center; }
.site-footer__contact a { color: var(--text-secondary); }
.site-footer__contact a:hover { color: var(--accent); }

/* ---- WhatsApp flotante --------------------------------------------------- */
.wa-float {
  position: fixed; right: clamp(1rem, 3vw, 1.75rem); bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 90; width: 56px; height: 56px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: var(--text-on-orange);
  box-shadow: var(--shadow-lg), var(--shadow-glow-orange);
  transition: transform var(--duration-base) var(--ease-standard), background var(--duration-fast);
}
.wa-float:hover { transform: scale(1.06); background: var(--accent-hover); }
.wa-float svg { width: 28px; height: 28px; }

/* ---- Reveal on scroll (SOLO bajo .js; sin JS el contenido se ve) --------- */
.js [data-reveal] { opacity: 0; transform: translateY(18px); }
.js [data-reveal].is-in { opacity: 1; transform: none; transition: opacity .6s var(--ease-standard), transform .6s var(--ease-standard); }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  /* neutraliza TODO lo animado: menú, hamburguesa, flotante, header */
  .site-nav, .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after,
  .wa-float, .site-header { transition: none !important; }
}

/* ---- Utilidades ---------------------------------------------------------- */
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}