/* ==========================================================================
   CHILE PERICIAS — Hoja de estilos principal
   Asesoría forense y pericial
   --------------------------------------------------------------------------
   Índice
   01. Tokens de diseño (variables)
   02. Reset y base
   03. Utilidades
   04. Botones e iconos
   05. Encabezado y navegación
   06. Hero
   07. Franja de compromisos
   08. Secciones genéricas
   09. Tarjetas de servicios
   10. Metodología (pasos)
   11. Ámbitos (mosaico)
   12. Nosotros (split)
   13. Contacto y formulario
   14. Pie de página
   15. Botón flotante de WhatsApp
   16. Animaciones de aparición
   17. Responsive
   18. Impresión
   ========================================================================== */


/* ==========================================================================
   01. TOKENS DE DISEÑO
   ========================================================================== */
:root {
  /* Paleta institucional tomada del logotipo */
  --azul-900: #07162f;
  --azul-800: #0b1f45;
  --azul-700: #0d2352;
  --azul-600: #143168;
  --azul-500: #1c4593;
  --azul-400: #2c5fc0;

  --rojo-600: #b41f26;
  --rojo-500: #d22630;
  --rojo-400: #e8434c;

  --wa-600: #128c7e;
  --wa-500: #25a366;
  --wa-400: #2fbd76;

  /* Neutros */
  --tinta: #101827;
  --gris-700: #374357;
  --gris-600: #566078;
  --gris-500: #7a8497;
  --gris-300: #ccd3de;
  --gris-200: #e2e7ef;
  --gris-100: #eef2f7;
  --gris-050: #f6f8fb;
  --blanco: #ffffff;

  /* Roles semánticos */
  --fondo: var(--blanco);
  --fondo-alt: var(--gris-050);
  --texto: var(--gris-700);
  --titulo: var(--azul-800);
  --borde: var(--gris-200);
  --acento: var(--azul-600);

  /* Tipografía */
  --f-titulo: "Source Serif 4", "Georgia", "Times New Roman", serif;
  --f-texto: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --t-xs: 0.8125rem;
  --t-sm: 0.9375rem;
  --t-base: 1.0313rem;
  --t-md: clamp(1.0625rem, 0.3vw + 1rem, 1.1875rem);
  --t-lg: clamp(1.25rem, 0.6vw + 1.1rem, 1.4375rem);
  --t-xl: clamp(1.5rem, 1.1vw + 1.2rem, 1.875rem);
  --t-2xl: clamp(1.875rem, 2vw + 1.3rem, 2.625rem);
  --t-3xl: clamp(2.25rem, 3.2vw + 1.4rem, 3.5rem);

  /* Espaciado y forma */
  --ancho: 1200px;
  --gutter: clamp(1.125rem, 3vw, 2.5rem);
  --sec-y: clamp(3.75rem, 7vw, 6.5rem);

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-pill: 999px;

  --sombra-1: 0 1px 2px rgba(7, 22, 47, .06), 0 2px 8px rgba(7, 22, 47, .05);
  --sombra-2: 0 2px 4px rgba(7, 22, 47, .06), 0 12px 28px rgba(7, 22, 47, .09);
  --sombra-3: 0 8px 20px rgba(7, 22, 47, .12), 0 28px 60px rgba(7, 22, 47, .16);

  --trans: 200ms cubic-bezier(.4, 0, .2, 1);
}


/* ==========================================================================
   02. RESET Y BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font-family: var(--f-texto);
  font-size: var(--t-base);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4 {
  margin: 0 0 .6em;
  font-family: var(--f-titulo);
  font-weight: 700;
  line-height: 1.18;
  color: var(--titulo);
  letter-spacing: -.012em;
  text-wrap: balance;
}

h1 { font-size: var(--t-3xl); }
h2 { font-size: var(--t-2xl); }
h3 { font-size: var(--t-lg); }

p { margin: 0 0 1.1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: var(--azul-500); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--rojo-500); }

img { max-width: 100%; height: auto; display: block; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button, input, select, textarea { font: inherit; color: inherit; }

/* El atributo [hidden] debe ganarle a cualquier display de componente. */
[hidden] { display: none !important; }

:focus-visible {
  outline: 3px solid var(--azul-400);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--azul-600); color: #fff; }


/* ==========================================================================
   03. UTILIDADES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--ancho);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.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;
}

.skip-link {
  position: absolute;
  top: -100px; left: 16px;
  z-index: 200;
  padding: .7rem 1.1rem;
  background: var(--azul-700);
  color: #fff;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  font-weight: 600;
  transition: top var(--trans);
}
.skip-link:focus { top: 0; color: #fff; }

.eyebrow {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin: 0 0 1rem;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--azul-500);
}
.eyebrow__dot {
  width: 22px; height: 2px;
  margin-top: .72em; /* alinea con la primera línea aunque el texto envuelva */
  background: var(--rojo-500);
  border-radius: 2px;
  flex: none;
}
.eyebrow--light { color: #9dc0ff; }
.eyebrow--light .eyebrow__dot { background: var(--rojo-400); }


/* ==========================================================================
   04. BOTONES E ICONOS
   ========================================================================== */
.btn {
  --btn-bg: var(--azul-700);
  --btn-fg: #fff;
  --btn-bd: var(--azul-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .85rem 1.5rem;
  border: 1.5px solid var(--btn-bd);
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--f-texto);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: transform var(--trans), box-shadow var(--trans),
              background-color var(--trans), color var(--trans), border-color var(--trans);
}
.btn:hover {
  color: var(--btn-fg);
  transform: translateY(-2px);
  box-shadow: var(--sombra-2);
}
.btn:active { transform: translateY(0); }

.btn--primary { --btn-bg: var(--azul-700); --btn-bd: var(--azul-700); }
.btn--primary:hover { --btn-bg: var(--azul-600); --btn-bd: var(--azul-600); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--azul-700);
  --btn-bd: var(--gris-300);
}
.btn--ghost:hover { --btn-bd: var(--azul-600); --btn-bg: rgba(20, 49, 104, .05); }

.btn--wa { --btn-bg: var(--wa-500); --btn-bd: var(--wa-500); }
.btn--wa:hover { --btn-bg: var(--wa-600); --btn-bd: var(--wa-600); }

.btn--sm { padding: .58rem 1.05rem; font-size: var(--t-xs); }
.btn--block { width: 100%; padding-block: 1rem; font-size: var(--t-base); }
.btn[disabled] { opacity: .6; pointer-events: none; }

.icon {
  width: 18px; height: 18px;
  fill: currentColor;
  flex: none;
}


/* ==========================================================================
   05. ENCABEZADO Y NAVEGACIÓN
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--borde);
  transition: box-shadow var(--trans), background-color var(--trans);
}
.site-header.is-stuck { box-shadow: var(--sombra-1); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 92px;
  padding-block: .5rem;
}

.brand { display: inline-flex; align-items: center; }
.brand__logo {
  width: auto;
  height: clamp(62px, 6.6vw, 92px);
  transition: height var(--trans), transform var(--trans);
}
.site-header.is-stuck .brand__logo { height: clamp(54px, 5.4vw, 74px); }
.brand:hover .brand__logo { transform: scale(1.03); }

.nav { display: flex; align-items: center; gap: 1.75rem; }

.nav__list { display: flex; align-items: center; gap: 1.6rem; }

.nav__link {
  position: relative;
  display: inline-block;
  padding: .4rem 0;
  color: var(--gris-700);
  font-size: var(--t-sm);
  font-weight: 500;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--rojo-500);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans);
}
.nav__link:hover,
.nav__link.is-active { color: var(--azul-700); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 101; /* por encima del panel lateral para poder cerrarlo */
  width: 46px; height: 46px;
  padding: 0;
  border: 1px solid var(--borde);
  border-radius: var(--r-sm);
  background: var(--blanco);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle__bar {
  display: block;
  width: 20px; height: 2px;
  background: var(--azul-700);
  border-radius: 2px;
  transition: transform var(--trans), opacity var(--trans);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(7, 22, 47, .45);
  backdrop-filter: blur(2px);
}


/* ==========================================================================
   06. HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-block: clamp(3rem, 6vw, 5.5rem) clamp(3.5rem, 7vw, 6rem);
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(28, 69, 147, .09), transparent 65%),
    radial-gradient(700px 380px at 100% 0%, rgba(210, 38, 48, .07), transparent 60%),
    linear-gradient(180deg, #fbfcfe 0%, var(--blanco) 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset-inline: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gris-200), transparent);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero__content { max-width: 42ch; }
.hero h1 { max-width: 19ch; }

.hero__lead {
  max-width: 54ch;
  font-size: var(--t-md);
  color: var(--gris-600);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 1.9rem;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  margin-top: 2.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--borde);
}
.hero__badges li {
  position: relative;
  padding-left: 1.35rem;
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--gris-600);
}
.hero__badges li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--rojo-500);
  box-shadow: 0 0 0 3px rgba(210, 38, 48, .16);
}

.hero__card {
  padding: clamp(1.6rem, 2.5vw, 2.2rem);
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-top: 4px solid var(--azul-700);
  border-radius: var(--r-lg);
  box-shadow: var(--sombra-2);
}
.hero__card-title { font-size: var(--t-lg); margin-bottom: .45em; }
.hero__card-text { font-size: var(--t-sm); color: var(--gris-600); margin-bottom: 1.5rem; }

/* Lista de contacto reutilizable */
.contact-list { display: grid; gap: 1rem; }
.contact-list__item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: .15rem .9rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--gris-200);
}
.contact-list__item:last-child { padding-bottom: 0; border-bottom: 0; }
.contact-list__label {
  grid-column: 1 / -1;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gris-500);
}
.contact-list__value {
  font-family: var(--f-titulo);
  font-size: var(--t-md);
  font-weight: 600;
  color: var(--azul-700);
  letter-spacing: .01em;
}
.contact-list__value:hover { color: var(--rojo-500); }
.contact-list__value--plain { color: var(--gris-600); font-weight: 600; }

.contact-list__wa {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .75rem;
  border: 1px solid rgba(37, 163, 102, .38);
  border-radius: var(--r-pill);
  background: rgba(37, 163, 102, .09);
  color: var(--wa-600);
  font-size: var(--t-xs);
  font-weight: 600;
  transition: background-color var(--trans), color var(--trans), border-color var(--trans);
}
.contact-list__wa:hover {
  background: var(--wa-500);
  border-color: var(--wa-500);
  color: #fff;
}
.contact-list__wa .icon { width: 15px; height: 15px; }

.contact-list--light .contact-list__item { border-bottom-color: rgba(255, 255, 255, .18); }
.contact-list--light .contact-list__label { color: #9dc0ff; }
.contact-list--light .contact-list__value { color: #fff; }
.contact-list--light .contact-list__value:hover { color: #ffc4c7; }
.contact-list--light .contact-list__value--plain { color: #c9d8f2; }
.contact-list--light .contact-list__wa {
  background: rgba(47, 189, 118, .16);
  border-color: rgba(47, 189, 118, .45);
  color: #7fe4ae;
}
.contact-list--light .contact-list__wa:hover { background: var(--wa-500); color: #fff; }


/* ==========================================================================
   07. FRANJA DE COMPROMISOS
   ========================================================================== */
.strip {
  padding-block: clamp(2.5rem, 4.5vw, 3.75rem);
  background: var(--azul-800);
  background-image: linear-gradient(135deg, var(--azul-800) 0%, var(--azul-700) 55%, var(--azul-600) 100%);
  color: #d5e0f2;
}
.strip__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.strip__item { padding-left: 1.25rem; border-left: 2px solid rgba(255, 255, 255, .16); }
.strip__icon { width: 26px; height: 26px; fill: var(--rojo-400); margin-bottom: .8rem; }
.strip__item h3 {
  margin-bottom: .35em;
  font-size: var(--t-base);
  color: #fff;
  letter-spacing: 0;
}
.strip__item p { font-size: var(--t-sm); line-height: 1.6; color: #b9c8e2; }


/* ==========================================================================
   08. SECCIONES GENÉRICAS
   ========================================================================== */
.section { padding-block: var(--sec-y); }
.section--alt { background: var(--fondo-alt); border-block: 1px solid var(--borde); }

.section__head { max-width: 62ch; margin-bottom: clamp(2.25rem, 4vw, 3.25rem); }
.section__lead { font-size: var(--t-md); color: var(--gris-600); }


/* ==========================================================================
   09. TARJETAS DE SERVICIOS
   ========================================================================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: clamp(1.1rem, 2vw, 1.75rem);
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 2.3vw, 2rem);
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--r-lg);
  box-shadow: var(--sombra-1);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}
.card::before {
  content: "";
  position: absolute;
  inset-inline: 0; top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--azul-600), var(--rojo-500));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms cubic-bezier(.4, 0, .2, 1);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--gris-300);
  box-shadow: var(--sombra-3);
}
.card:hover::before { transform: scaleX(1); }

.card--wide { grid-column: 1 / -1; }

.card__icon {
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  margin-bottom: 1.15rem;
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(28, 69, 147, .16), rgba(210, 38, 48, .14));
  box-shadow: inset 0 0 0 1px rgba(13, 35, 82, .1);
  color: var(--azul-700);
}
.card__icon svg { width: 27px; height: 27px; fill: currentColor; }

.card__title { margin-bottom: .5em; font-size: var(--t-lg); }
.card__text { font-size: var(--t-sm); color: var(--gris-600); }

.card__list {
  display: grid;
  gap: .55rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--gris-100);
}
.card__list--two { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: .55rem 2rem; }
.card__list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: var(--t-sm);
  line-height: 1.55;
  color: var(--gris-700);
}
.card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 9px; height: 9px;
  border: 2px solid var(--rojo-500);
  border-radius: 2px;
  transform: rotate(45deg);
}


/* ==========================================================================
   10. METODOLOGÍA
   ========================================================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(1.25rem, 2.4vw, 2rem);
  counter-reset: paso;
}
.step {
  position: relative;
  padding: 1.9rem 1.5rem 1.6rem;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--r-lg);
  transition: transform var(--trans), box-shadow var(--trans);
}
.step:hover { transform: translateY(-4px); box-shadow: var(--sombra-2); }
.step__num {
  position: absolute;
  top: -18px; left: 1.5rem;
  display: grid;
  place-items: center;
  min-width: 46px; height: 36px;
  padding-inline: .6rem;
  border-radius: var(--r-pill);
  background: var(--azul-700);
  color: #fff;
  font-family: var(--f-titulo);
  font-size: var(--t-sm);
  font-weight: 700;
  letter-spacing: .06em;
  box-shadow: 0 4px 12px rgba(13, 35, 82, .28);
}
.step__title { margin-top: .65rem; margin-bottom: .45em; font-size: var(--t-base); letter-spacing: 0; }
.step p { font-size: var(--t-sm); color: var(--gris-600); }


/* ==========================================================================
   11. ÁMBITOS
   ========================================================================== */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 1px;
  background: var(--borde);
  border: 1px solid var(--borde);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.tile {
  padding: clamp(1.5rem, 2.2vw, 2rem);
  background: var(--blanco);
  transition: background-color var(--trans);
}
.tile:hover { background: var(--gris-050); }
.tile h3 {
  position: relative;
  margin-bottom: .5em;
  padding-bottom: .6rem;
  font-size: var(--t-base);
  letter-spacing: 0;
}
.tile h3::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 30px; height: 2px;
  background: var(--rojo-500);
  border-radius: 2px;
}
.tile p { font-size: var(--t-sm); color: var(--gris-600); }


/* ==========================================================================
   12. NOSOTROS
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.split__text p { color: var(--gris-600); }

.checklist { display: grid; gap: .7rem; margin: 1.75rem 0 2rem; }
.checklist li {
  position: relative;
  padding-left: 2rem;
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--gris-700);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: .25em;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(28, 69, 147, .1);
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 6.5px; top: .62em;
  width: 5px; height: 9px;
  border: solid var(--azul-600);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.split__aside { display: grid; gap: 1.5rem; }

.quote {
  margin: 0;
  padding: 1.6rem 1.75rem;
  background: var(--azul-800);
  background-image: linear-gradient(135deg, var(--azul-800), var(--azul-600));
  border-radius: var(--r-lg);
  color: #e2eaf8;
}
.quote p {
  font-family: var(--f-titulo);
  font-size: var(--t-md);
  font-style: italic;
  line-height: 1.6;
  color: #eaf1fd;
}

.panel {
  padding: 1.6rem 1.75rem;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-left: 4px solid var(--rojo-500);
  border-radius: var(--r-md);
}
.panel__title { font-size: var(--t-base); margin-bottom: .8em; letter-spacing: 0; }
.panel__list { display: grid; gap: .65rem; }
.panel__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: var(--t-sm);
  color: var(--gris-600);
}
.panel__list li::before {
  content: "";
  position: absolute;
  left: 0; top: .68em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--azul-500);
}
.panel__list strong { color: var(--titulo); font-weight: 600; }


/* ==========================================================================
   13. CONTACTO Y FORMULARIO
   ========================================================================== */
.section--contact {
  position: relative;
  background: var(--azul-900);
  background-image:
    radial-gradient(720px 420px at 0% 0%, rgba(28, 69, 147, .55), transparent 62%),
    radial-gradient(620px 380px at 100% 100%, rgba(180, 31, 38, .3), transparent 60%),
    linear-gradient(160deg, var(--azul-900) 0%, var(--azul-800) 100%);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(2.25rem, 5vw, 4.5rem);
  align-items: start;
}
.contact__intro h2 { color: #fff; }
@media (min-width: 1081px) {
  .contact__intro { position: sticky; top: 124px; }
}
.contact__lead { font-size: var(--t-md); color: #c3d3ee; margin-bottom: 2.25rem; }

.form-wrap {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--blanco);
  border-radius: var(--r-lg);
  box-shadow: var(--sombra-3);
}

.form__intro { font-size: var(--t-xs); color: var(--gris-500); margin-bottom: 1.5rem; }

.form__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 1.1rem;
}

.field { display: block; margin-bottom: 1.1rem; }

.field__label {
  display: block;
  margin-bottom: .4rem;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--titulo);
}
.req { color: var(--rojo-500); }

.field__input {
  width: 100%;
  padding: .8rem 1rem;
  background: var(--gris-050);
  border: 1.5px solid var(--gris-200);
  border-radius: var(--r-sm);
  font-size: var(--t-sm);
  color: var(--tinta);
  transition: border-color var(--trans), background-color var(--trans), box-shadow var(--trans);
  appearance: none;
}
.field__input::placeholder { color: var(--gris-500); opacity: 1; }
.field__input:hover { border-color: var(--gris-300); }
.field__input:focus {
  outline: none;
  background: var(--blanco);
  border-color: var(--azul-500);
  box-shadow: 0 0 0 4px rgba(28, 69, 147, .14);
}
.field__textarea { resize: vertical; min-height: 132px; line-height: 1.6; }

.field__select { position: relative; }
.field__select .field__input { padding-right: 2.6rem; cursor: pointer; }
.field__chevron {
  position: absolute;
  right: .85rem; top: 50%;
  width: 20px; height: 20px;
  transform: translateY(-50%);
  fill: var(--gris-500);
  pointer-events: none;
}

.field__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-top: .35rem;
}
.field__count { margin: 0; font-size: var(--t-xs); color: var(--gris-500); white-space: nowrap; margin-left: auto; }

.field__error {
  display: flex;
  align-items: center;
  gap: .35rem;
  margin: .35rem 0 0;
  font-size: var(--t-xs);
  font-weight: 500;
  color: var(--rojo-600);
}
.field__error::before { content: "▲"; font-size: .6em; transform: translateY(-1px); }

.field.has-error .field__input {
  border-color: var(--rojo-500);
  background: rgba(210, 38, 48, .04);
}
.field.has-error .field__input:focus { box-shadow: 0 0 0 4px rgba(210, 38, 48, .14); }

.field--check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .2rem .7rem;
  align-items: start;
  margin-block: 1.35rem;
}
.check__input {
  width: 20px; height: 20px;
  margin: .18rem 0 0;
  accent-color: var(--azul-600);
  cursor: pointer;
  flex: none;
}
.check__label { font-size: var(--t-xs); line-height: 1.55; color: var(--gris-600); cursor: pointer; }
.field--check .field__error { grid-column: 1 / -1; }
.field--check.has-error .check__label { color: var(--rojo-600); }

.hp {
  position: absolute !important;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form__note { margin: .9rem 0 0; font-size: var(--t-xs); color: var(--gris-500); text-align: center; }
.form__note--warn { color: var(--rojo-600); }

.form__status {
  margin: 1rem 0 0;
  padding: .85rem 1rem;
  border-radius: var(--r-sm);
  font-size: var(--t-sm);
  font-weight: 500;
  text-align: center;
}
.form__status.is-ok {
  background: rgba(37, 163, 102, .1);
  border: 1px solid rgba(37, 163, 102, .35);
  color: var(--wa-600);
}
.form__status.is-error {
  background: rgba(210, 38, 48, .07);
  border: 1px solid rgba(210, 38, 48, .3);
  color: var(--rojo-600);
}


/* ==========================================================================
   14. PIE DE PÁGINA
   ========================================================================== */
.site-footer {
  padding-top: clamp(2.75rem, 5vw, 4rem);
  background: var(--azul-900);
  color: #a9bbd8;
  font-size: var(--t-sm);
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: clamp(1.75rem, 3.5vw, 3rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.footer__logo-chip {
  display: inline-flex;
  padding: .9rem 1.15rem;
  background: #fff;
  border-radius: var(--r-md);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
}
.footer__logo-chip img { width: auto; height: 76px; }
.footer__tagline { margin-top: 1.1rem; max-width: 30ch; color: #93a8ca; }

.footer__title {
  margin-bottom: 1rem;
  font-family: var(--f-texto);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: #fff;
}
.footer__nav ul,
.footer__contact ul { display: grid; gap: .6rem; }
.footer__nav a,
.footer__contact a { color: #a9bbd8; }
.footer__nav a:hover,
.footer__contact a:hover { color: #fff; }

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .75rem 2rem;
  /* El espacio inferior extra evita que el botón flotante tape el texto legal. */
  padding-block: 1.35rem 5.5rem;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: var(--t-xs);
  color: #7e93b6;
}
.footer__legal p { margin: 0; }
.footer__disclaimer { max-width: 72ch; }


/* ==========================================================================
   15. BOTÓN FLOTANTE DE WHATSAPP
   ========================================================================== */
.fab-wa {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 95;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .8rem 1.15rem;
  background: var(--wa-500);
  color: #fff;
  border-radius: var(--r-pill);
  font-size: var(--t-sm);
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(18, 140, 126, .38), 0 2px 6px rgba(0, 0, 0, .18);
  transition: transform var(--trans), background-color var(--trans), box-shadow var(--trans);
}
.fab-wa:hover {
  background: var(--wa-600);
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 26px rgba(18, 140, 126, .45);
}
.fab-wa svg { width: 24px; height: 24px; fill: currentColor; }


/* ==========================================================================
   16. ANIMACIONES DE APARICIÓN
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms cubic-bezier(.16, 1, .3, 1),
              transform 620ms cubic-bezier(.16, 1, .3, 1);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}


/* ==========================================================================
   17. RESPONSIVE
   ========================================================================== */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__content { max-width: 62ch; }
  .hero h1 { max-width: 22ch; }
  .hero__card { max-width: 560px; }
  .strip__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  html { scroll-padding-top: 92px; }
  .header__inner { min-height: 80px; }
  .nav-toggle { display: flex; }

  /* Importante: backdrop-filter crea un bloque contenedor para los
     descendientes con position:fixed. Si se mantiene, el panel lateral
     se recorta a la altura del encabezado en lugar de ocupar la pantalla. */
  .site-header {
    background: var(--blanco);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 99;
    width: min(88vw, 340px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 5.75rem 1.6rem 2rem;
    background: var(--blanco);
    box-shadow: -12px 0 40px rgba(7, 22, 47, .18);
    transform: translateX(100%);
    /* Oculto también para el teclado y los lectores de pantalla mientras
       está cerrado: evita que los enlaces reciban foco fuera de pantalla. */
    visibility: hidden;
    pointer-events: none;
    transition: transform 280ms cubic-bezier(.4, 0, .2, 1), visibility 0s 280ms;
    overflow-y: auto;
  }
  .nav.is-open {
    transform: none;
    visibility: visible;
    pointer-events: auto;
    transition: transform 280ms cubic-bezier(.4, 0, .2, 1), visibility 0s 0s;
  }

  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list li { border-bottom: 1px solid var(--gris-100); }
  .nav__link { display: block; padding: .95rem .25rem; font-size: var(--t-base); }
  .nav__link::after { display: none; }
  .nav__cta { margin-top: 1.5rem; justify-content: center; padding-block: .85rem; font-size: var(--t-sm); }
}

@media (max-width: 640px) {
  .strip__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__actions .btn { width: 100%; }
  .contact-list__item { grid-template-columns: 1fr; gap: .5rem; }
  .contact-list__wa { justify-self: start; }
  .fab-wa__text { display: none; }
  .fab-wa { padding: .9rem; border-radius: 50%; }
  .card__list--two { grid-template-columns: 1fr; }
}


/* ==========================================================================
   18. IMPRESIÓN
   ========================================================================== */
@media print {
  .site-header, .fab-wa, .nav-toggle, .nav-backdrop, .form-wrap, .hero__actions { display: none !important; }
  body { color: #000; font-size: 11pt; }
  .section, .hero { padding-block: 1.25rem; }
  .strip, .section--contact, .site-footer, .quote { background: #fff !important; color: #000 !important; }
  .strip__item p, .contact__lead, .footer__tagline { color: #333 !important; }
  .contact-list--light .contact-list__value, .contact__intro h2, .strip__item h3 { color: #000 !important; }
  a { color: #000; text-decoration: underline; }
  .reveal { opacity: 1 !important; transform: none !important; }
}