/* ============================================================================
   TREV-ON SOLUCIÓN INDUSTRIAL® — Landing page
   Hoja de estilos única (sin build, sin framework). Mobile-first.
   ---------------------------------------------------------------------------
   CÓMO EDITAR:
   - Colores y tokens de marca: bloque :root de abajo.
   - Tipografías: se cargan en <head> (Google Fonts). Ver --font-*.
   - Cada sección tiene un comentario /* == NOMBRE == * / para ubicarla rápido.
   ========================================================================== */

/* ============================== TOKENS DE MARCA ========================== */
:root {
  /* Colores de marca Trev-on (amarillo muestreado del brochure = #FDF000) */
  --yellow: #FDF000;         /* Amarillo de marca (CTA, acentos, líneas) */
  --yellow-hover: #E4D800;   /* Amarillo más oscuro para hover de botones */
  --black: #0F0F0F;          /* Negro / casi negro (texto y fondos) */
  --charcoal: #1c1c1c;       /* Gris carbón (secciones oscuras) */
  --charcoal-2: #242424;     /* Tarjetas sobre fondo oscuro */
  --charcoal-line: #343434;  /* Bordes sobre fondo oscuro */
  --white: #ffffff;
  --gray-50: #f5f5f5;        /* Fondos alternos claros */
  --gray-100: #ededed;
  --gray-200: #e2e2e2;       /* Bordes claros */
  --gray-400: #9a9a9a;
  --gray-500: #6a6a6a;       /* Texto secundario/atenuado */
  --ink: #171717;            /* Texto principal sobre claro */

  /* Tipografías */
  --font-display: "Oswald", "Arial Narrow", sans-serif; /* Títulos industriales */
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --maxw: 1200px;
  --gutter: 20px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 6px 24px rgba(0, 0, 0, .10);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, .18);
  --header-h: 68px;
  --topbar-h: 38px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ============================== RESET / BASE ============================= */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; }

/* Foco visible accesible */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

/* Enlace "saltar al contenido" para lectores de pantalla / teclado */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--yellow); color: var(--black); padding: 10px 16px;
  font-weight: 700; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ============================== TIPOGRAFÍA ============================== */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: .3px; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600; text-transform: uppercase;
  letter-spacing: 2.5px; font-size: .8rem;
  color: var(--black);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 28px; height: 3px; background: var(--yellow); display: inline-block; }
.eyebrow--light { color: var(--white); }

.section-title {
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  text-transform: uppercase;
  color: var(--ink);
  margin-top: 10px;
}
.section-title--light { color: var(--white); }
.section-lead { color: var(--gray-500); max-width: 62ch; margin-top: 14px; font-size: 1.02rem; }
.section-lead--light { color: rgba(255, 255, 255, .72); }

/* ============================== LAYOUT ================================= */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 64px 0; }
.section--tight { padding: 48px 0; }
.section--dark { background: var(--charcoal); color: var(--white); }
.section--black { background: var(--black); color: var(--white); }
.section--gray { background: var(--gray-50); }
.section-head { margin-bottom: 40px; max-width: 760px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .section-lead { margin-left: auto; margin-right: auto; }
.section-head--center .eyebrow { justify-content: center; }

/* ============================== BOTONES ================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; letter-spacing: .5px;
  text-transform: uppercase; font-size: .95rem;
  padding: 14px 26px; border: 2px solid transparent; border-radius: var(--radius-sm);
  transition: transform .15s var(--ease), background .15s var(--ease),
              color .15s var(--ease), border-color .15s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 20px; height: 20px; flex: none; }
.btn--primary { background: var(--yellow); color: var(--black); }
.btn--primary:hover { background: var(--yellow-hover); transform: translateY(-2px); }
.btn--dark { background: var(--black); color: var(--white); }
.btn--dark:hover { background: #000; transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--white); border-color: rgba(255, 255, 255, .45); }
.btn--ghost:hover { border-color: var(--yellow); color: var(--yellow); }
.btn--ghost-dark { background: transparent; color: var(--ink); border-color: var(--gray-200); }
.btn--ghost-dark:hover { border-color: var(--black); }
.btn--block { width: 100%; }
.btn--lg { padding: 17px 32px; font-size: 1.02rem; }

/* ============================== TOP BAR ================================= */
.topbar {
  background: var(--black); color: rgba(255, 255, 255, .82);
  font-size: .82rem; border-bottom: 1px solid #000;
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--topbar-h); gap: 16px; }
.topbar__group { display: flex; align-items: center; gap: 20px; }
.topbar a { display: inline-flex; align-items: center; gap: 7px; transition: color .15s; }
.topbar a:hover { color: var(--yellow); }
.topbar svg { width: 15px; height: 15px; color: var(--yellow); flex: none; }
.topbar__loc { color: rgba(255, 255, 255, .6); }
.topbar .topbar__hide-sm { display: none; }

/* ============================== HEADER / NAV ============================ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: saturate(150%) blur(6px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow .2s var(--ease), background .2s var(--ease);
}
.header.is-scrolled { box-shadow: var(--shadow); }
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); transition: height .2s var(--ease);
}
.header.is-scrolled .header__inner { height: 58px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 46px; width: auto; transition: height .2s var(--ease); }
.header.is-scrolled .brand img { height: 40px; }
.brand__sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.nav { display: none; align-items: center; gap: 6px; }
.nav a {
  font-family: var(--font-display); font-weight: 500; text-transform: uppercase;
  letter-spacing: .6px; font-size: .92rem; color: var(--ink);
  padding: 10px 12px; border-radius: 6px; position: relative;
}
.nav a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 2px;
  background: var(--yellow); transform: scaleX(0); transform-origin: left; transition: transform .2s var(--ease);
}
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.header__cta { display: none; }

/* Botón hamburguesa (móvil) */
.hamburger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 46px; height: 42px; background: var(--black); border: none; border-radius: 8px; padding: 0 11px;
}
.hamburger span { height: 2px; background: var(--yellow); border-radius: 2px; transition: transform .2s var(--ease), opacity .2s var(--ease); }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menú móvil desplegable */
.mobile-menu {
  position: fixed; inset: 0 0 0 auto; width: min(84vw, 340px); z-index: 130;
  background: var(--black); color: var(--white);
  transform: translateX(100%); transition: transform .28s var(--ease);
  padding: calc(var(--header-h) + 20px) 26px 30px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 4px;
}
.mobile-menu.is-open { transform: translateX(0); box-shadow: var(--shadow-lg); }
.mobile-menu a {
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: .8px;
  font-size: 1.15rem; padding: 14px 4px; border-bottom: 1px solid var(--charcoal-line);
}
.mobile-menu a:hover { color: var(--yellow); }
.mobile-menu .btn { margin-top: 20px; }
.mobile-menu__contact { margin-top: auto; padding-top: 24px; font-size: .9rem; color: rgba(255, 255, 255, .7); display: grid; gap: 8px; }
.mobile-menu__contact a { border: none; padding: 0; font-family: var(--font-body); text-transform: none; letter-spacing: 0; font-size: .9rem; }
.overlay {
  position: fixed; inset: 0; z-index: 120; background: rgba(0, 0, 0, .5);
  opacity: 0; visibility: hidden; transition: opacity .28s, visibility .28s;
}
.overlay.is-open { opacity: 1; visibility: visible; }

/* ============================== HERO =================================== */
.hero { position: relative; background: var(--black); color: var(--white); overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
/* Overlay oscuro para legibilidad del texto sobre la foto */
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 10, 10, .92) 0%, rgba(10, 10, 10, .78) 45%, rgba(10, 10, 10, .45) 100%),
    linear-gradient(0deg, rgba(10, 10, 10, .8) 0%, rgba(10, 10, 10, .1) 40%);
}
.hero__inner { position: relative; z-index: 1; padding: 56px 0 48px; max-width: 760px; }
.hero h1 {
  font-size: clamp(2.1rem, 7vw, 4rem); text-transform: uppercase;
  margin: 18px 0 0; letter-spacing: .5px;
}
.hero h1 .accent { color: var(--yellow); }
.hero__sub { font-size: clamp(1rem, 2.4vw, 1.18rem); color: rgba(255, 255, 255, .86); margin-top: 18px; max-width: 60ch; }
.hero__sub strong { color: var(--white); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero__partners {
  margin-top: 40px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .16);
  display: flex; align-items: center; gap: 22px 30px; flex-wrap: wrap;
}
.hero__partners-label {
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: 1.5px;
  font-size: .72rem; color: rgba(255, 255, 255, .6); max-width: 92px; line-height: 1.3;
}
.hero__partners img { height: 26px; width: auto; opacity: .95; }

/* ============================== TRUST STRIP ============================ */
.trust { background: var(--charcoal); color: var(--white); border-top: 3px solid var(--yellow); }
.trust__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--charcoal-line);
}
.trust__item { background: var(--charcoal); padding: 24px 18px; text-align: center; }
.trust__num { font-family: var(--font-display); font-weight: 700; font-size: 1.9rem; color: var(--yellow); line-height: 1; }
.trust__label { font-size: .82rem; color: rgba(255, 255, 255, .78); margin-top: 8px; letter-spacing: .3px; }
.trust__iso { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; }
.trust__iso img { height: 46px; width: auto; border-radius: 4px; }
.trust__iso span { font-size: .74rem; color: rgba(255, 255, 255, .7); }

/* ============================== SERVICIOS ============================== */
.services-grid {
  display: grid; grid-template-columns: 1fr; gap: 22px;
}
.card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gray-100); }
.card__media { position: relative; aspect-ratio: 16 / 10; background: var(--gray-100); overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.card:hover .card__media img { transform: scale(1.05); }
.card__icon {
  position: absolute; left: 14px; bottom: -22px; width: 48px; height: 48px;
  background: var(--yellow); border-radius: 10px; display: grid; place-items: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .25);
}
.card__icon svg { width: 26px; height: 26px; color: var(--black); }
.card__body { padding: 30px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card__title { font-size: 1.2rem; text-transform: uppercase; color: var(--ink); }
.card__desc { color: var(--gray-500); font-size: .95rem; margin-top: 8px; flex: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tag {
  font-family: var(--font-display); font-size: .72rem; text-transform: uppercase; letter-spacing: .6px;
  padding: 4px 10px; border-radius: 999px; border: 1px solid var(--gray-200); color: var(--gray-500); background: var(--gray-50);
}
.tag--on { background: var(--black); color: var(--yellow); border-color: var(--black); }
.card__link {
  margin-top: 18px; font-family: var(--font-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .6px; font-size: .88rem; color: var(--ink);
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
}
.card__link svg { width: 16px; height: 16px; transition: transform .18s var(--ease); }
.card__link:hover { color: #000; }
.card__link:hover svg { transform: translateX(4px); }
.card__link .u { border-bottom: 2px solid var(--yellow); padding-bottom: 2px; }

/* ============================== ¿POR QUÉ TREV-ON? ===================== */
.why-grid { display: grid; grid-template-columns: 1fr; gap: 2px; background: var(--charcoal-line); border: 1px solid var(--charcoal-line); border-radius: var(--radius); overflow: hidden; }
.why-item { background: var(--charcoal); padding: 28px 24px; }
.why-item__ico { width: 46px; height: 46px; border-radius: 10px; background: rgba(253, 240, 0, .12); display: grid; place-items: center; margin-bottom: 16px; }
.why-item__ico svg { width: 26px; height: 26px; color: var(--yellow); }
.why-item h3 { font-size: 1.15rem; text-transform: uppercase; color: var(--white); }
.why-item p { color: rgba(255, 255, 255, .72); font-size: .95rem; margin-top: 8px; }

/* ============================== SECTORES ============================== */
.sectors { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sector {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 28px 18px; text-align: center; transition: transform .2s var(--ease), border-color .2s;
}
.sector:hover { transform: translateY(-4px); border-color: var(--black); }
.sector__ico { width: 60px; height: 60px; margin: 0 auto 14px; border-radius: 14px; background: var(--black); display: grid; place-items: center; }
.sector__ico svg { width: 32px; height: 32px; color: var(--yellow); }
.sector h3 { font-size: 1.05rem; text-transform: uppercase; color: var(--ink); }

/* ============================== CASO DE ÉXITO ========================= */
.cases { display: grid; grid-template-columns: 1fr; gap: 24px; }
.case {
  display: grid; grid-template-columns: 1fr; background: var(--charcoal-2);
  border: 1px solid var(--charcoal-line); border-radius: var(--radius); overflow: hidden;
}
.case__media { aspect-ratio: 4 / 3; }
.case__media img { width: 100%; height: 100%; object-fit: cover; }
.case__body { padding: 28px 24px; display: flex; flex-direction: column; }
.case__tag {
  align-self: flex-start; font-family: var(--font-display); text-transform: uppercase; letter-spacing: 1px;
  font-size: .72rem; color: var(--black); background: var(--yellow); padding: 5px 12px; border-radius: 4px; margin-bottom: 16px;
}
.case__body h3 { font-size: 1.35rem; text-transform: uppercase; color: var(--white); }
.case__meta { color: var(--yellow); font-size: .9rem; margin-top: 6px; font-weight: 500; }
.case__result { color: rgba(255, 255, 255, .78); margin-top: 14px; }
.case__note { color: var(--gray-400); font-size: .8rem; margin-top: 20px; font-style: italic; }
.case--placeholder { border-style: dashed; opacity: .8; align-items: center; justify-content: center; text-align: center; padding: 40px 24px; color: rgba(255, 255, 255, .6); }

/* ============================== COBERTURA ============================= */
.coverage { display: grid; grid-template-columns: 1fr; gap: 30px; align-items: center; }
.cities { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.city {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: 999px; font-weight: 500; font-size: .92rem;
}
.city svg { width: 16px; height: 16px; color: var(--yellow); flex: none; }
.city--all { background: var(--black); color: var(--white); border-color: var(--black); }
.city--all svg { color: var(--yellow); }
.coverage__aside {
  background: var(--black); color: var(--white); border-radius: var(--radius); padding: 30px; border-left: 4px solid var(--yellow);
}
.coverage__aside h3 { font-size: 1.3rem; text-transform: uppercase; }
.coverage__aside p { color: rgba(255, 255, 255, .75); margin-top: 12px; }

/* ============================== MODELO V/R/S ========================= */
.model { display: grid; grid-template-columns: 1fr; gap: 18px; }
.model-col {
  background: var(--white); border: 1px solid var(--gray-200); border-top: 4px solid var(--yellow);
  border-radius: var(--radius); padding: 30px 26px;
}
.model-col__n { font-family: var(--font-display); font-weight: 700; color: var(--gray-200); font-size: 2.4rem; line-height: 1; }
.model-col h3 { font-size: 1.35rem; text-transform: uppercase; margin-top: 6px; }
.model-col p { color: var(--gray-500); margin-top: 12px; }

/* ============================== CONTACTO / FORM ====================== */
.contact { display: grid; grid-template-columns: 1fr; gap: 34px; }
.contact__intro h2 { font-size: clamp(1.8rem, 5vw, 2.7rem); text-transform: uppercase; }
.contact__list { margin-top: 26px; display: grid; gap: 18px; }
.contact__row { display: flex; gap: 14px; align-items: flex-start; }
.contact__row .ico { width: 42px; height: 42px; border-radius: 10px; background: rgba(253, 240, 0, .14); display: grid; place-items: center; flex: none; }
.contact__row .ico svg { width: 22px; height: 22px; color: var(--yellow); }
.contact__row .lbl { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .8px; font-size: .78rem; color: rgba(255, 255, 255, .55); }
.contact__row .val { color: var(--white); font-size: 1rem; }
.contact__row .val a:hover { color: var(--yellow); }
.contact__wa { margin-top: 28px; }

.form {
  background: var(--white); color: var(--ink); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-lg);
}
.form h3 { font-size: 1.35rem; text-transform: uppercase; }
.form p.form__hint { color: var(--gray-500); font-size: .9rem; margin-top: 6px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .86rem; margin-bottom: 6px; }
.field label .req { color: #c0392b; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
  font-family: inherit; font-size: .98rem; background: var(--gray-50); color: var(--ink); transition: border-color .15s, background .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--black); background: var(--white); outline: none; }
.field textarea { resize: vertical; min-height: 110px; }
.field--row { display: grid; grid-template-columns: 1fr; gap: 0; }
.form__row { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
.form__status { margin-top: 12px; font-size: .9rem; padding: 12px 14px; border-radius: var(--radius-sm); display: none; }
.form__status.is-ok { display: block; background: #e8f8ee; color: #1c7a44; border: 1px solid #bfe6cd; }
.form__status.is-err { display: block; background: #fdecea; color: #b23c2e; border: 1px solid #f5c6bf; }
.form__legal { font-size: .78rem; color: var(--gray-400); margin-top: 14px; }

/* ============================== FOOTER =============================== */
.footer { background: var(--black); color: rgba(255, 255, 255, .72); padding: 56px 0 24px; }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: 34px; }
.footer__brand img { height: 66px; width: auto; margin-bottom: 16px; }
.footer__brand p { font-size: .9rem; max-width: 40ch; }
.footer h4 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 1px; color: var(--white); font-size: .95rem; margin-bottom: 16px; }
.footer ul { display: grid; gap: 10px; font-size: .92rem; }
.footer a:hover { color: var(--yellow); }
.footer__nap { display: grid; gap: 12px; font-size: .92rem; }
.footer__nap .row { display: flex; gap: 10px; align-items: flex-start; }
.footer__nap svg { width: 17px; height: 17px; color: var(--yellow); flex: none; margin-top: 3px; }
.footer__iso { display: flex; align-items: center; gap: 12px; margin-top: 6px; }
.footer__iso img { height: 42px; border-radius: 4px; }
.footer__iso span { font-size: .8rem; }
.footer__social a { display: inline-flex; align-items: center; gap: 8px; }
.footer__social svg { width: 20px; height: 20px; color: var(--yellow); }
.footer__bottom {
  border-top: 1px solid var(--charcoal-line); margin-top: 40px; padding-top: 22px;
  display: flex; flex-wrap: wrap; gap: 10px 20px; justify-content: space-between; font-size: .82rem; color: var(--gray-400);
}
.footer__bottom a:hover { color: var(--yellow); }

/* ============================== WHATSAPP FLOTANTE ==================== */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%; background: #25D366;
  display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
  transition: transform .2s var(--ease);
  animation: wa-pulse 2.4s infinite;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 32px; height: 32px; color: #fff; }
@keyframes wa-pulse {
  0% { box-shadow: 0 8px 24px rgba(0, 0, 0, .3), 0 0 0 0 rgba(37, 211, 102, .5); }
  70% { box-shadow: 0 8px 24px rgba(0, 0, 0, .3), 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 8px 24px rgba(0, 0, 0, .3), 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ============================== ANIMACIONES REVEAL =================== */
/* Elementos con [data-reveal] entran con fade + slide-up al hacer scroll */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ============================== RESPONSIVE =========================== */
@media (min-width: 560px) {
  .trust__grid { grid-template-columns: repeat(4, 1fr); }
  .sectors { grid-template-columns: repeat(4, 1fr); }
  .form__row { grid-template-columns: 1fr 1fr; }
  .topbar .topbar__hide-sm { display: inline-flex; }
}

@media (min-width: 768px) {
  .section { padding: 84px 0; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .model { grid-template-columns: repeat(3, 1fr); }
  .case { grid-template-columns: 1fr 1.2fr; }
  .case__media { aspect-ratio: auto; }
  .cases { grid-template-columns: 1fr; }
  .coverage { grid-template-columns: 1.4fr 1fr; }
  .contact { grid-template-columns: 1fr 1fr; }
  .hero__inner { padding: 88px 0 72px; }
}

@media (min-width: 992px) {
  .nav { display: flex; }
  .header__cta { display: inline-flex; }
  .hamburger { display: none; }
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1.3fr; }
  .cases { grid-template-columns: 1fr; }
}
