/* =====================================================================
   RA PACKAGING · Hoja de estilos principal
   ---------------------------------------------------------------------
   Concepto: el mundo de la imprenta como identidad visual.
   - Paleta CMYK de la marca (Cian, Magenta, Amarillo, Negro) sobre papel.
   - Barra de color CMYK y marcas de registro como elementos firma.
   Organización:
     1. Fuentes (@font-face, auto-alojadas)
     2. Tokens de diseño (custom properties) + modo oscuro
     3. Reset y base
     4. Tipografía
     5. Utilidades de layout
     6. Componentes: botones, marcas de registro, barra CMYK
     7. Secciones: header, hero, beneficios, servicios, nosotros,
        clientes, contacto, footer
     8. Animaciones y accesibilidad
     9. Responsivo
   ===================================================================== */

/* =====================================================================
   1. FUENTES AUTO-ALOJADAS (woff2, subconjunto latino)
   ===================================================================== */
/* Display: Archivo variable (permite el ancho "expanded" vía font-stretch) */
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-var-latin.woff2") format("woff2");
  font-weight: 600 800;
  font-stretch: 100% 125%;
  font-style: normal;
  font-display: swap;
}
/* Cuerpo: Inter */
@font-face { font-family: "Inter"; src: url("../fonts/inter-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }
/* Datos técnicos: IBM Plex Mono (ficha de especificaciones) */
@font-face { font-family: "Plex Mono"; src: url("../fonts/plexmono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("../fonts/plexmono-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("../fonts/plexmono-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }

/* =====================================================================
   2. TOKENS DE DISEÑO
   ===================================================================== */
:root {
  /* Paleta de marca (fija en ambos temas) */
  --cyan: #00AEEF;
  --magenta: #EC008C;
  --yellow: #FFD200;
  /* Magenta más oscuro SOLO para texto sobre fondos claros (contraste AA).
     En modo oscuro se sobrescribe con el magenta brillante. */
  --magenta-text: #B4006D;

  /* Tema claro (por defecto) */
  --ink: #141414;          /* texto principal / negro K */
  --paper: #FAFAF7;        /* fondo papel */
  --surface: #FFFFFF;      /* tarjetas */
  --surface-2: #F1EFE9;    /* superficies sutiles */
  --muted: #5F5F5C;        /* texto secundario */
  --line: #E4E1D8;         /* bordes/hairlines */
  --hero-bg: #141414;      /* el hero es oscuro en ambos temas */
  --hero-ink: #FAFAF7;

  /* Tipografía */
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "Plex Mono", ui-monospace, monospace;

  /* Escala tipográfica fluida (clamp: móvil -> desktop) */
  --step--1: clamp(0.80rem, 0.77rem + 0.15vw, 0.88rem);
  --step-0:  clamp(1.00rem, 0.95rem + 0.25vw, 1.13rem);
  --step-1:  clamp(1.25rem, 1.15rem + 0.5vw, 1.55rem);
  --step-2:  clamp(1.60rem, 1.40rem + 1.0vw, 2.30rem);
  --step-3:  clamp(2.00rem, 1.55rem + 2.0vw, 3.40rem);
  --step-4:  clamp(2.35rem, 1.55rem + 3.4vw, 5.50rem);

  /* Espaciado y radios */
  --gap: clamp(1rem, 0.7rem + 1.4vw, 2rem);
  --section-y: clamp(4rem, 3rem + 6vw, 8rem);
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1200px;

  /* Sombras */
  --shadow: 0 1px 2px rgba(20,20,20,.04), 0 12px 30px -12px rgba(20,20,20,.14);
  --shadow-lg: 0 24px 60px -20px rgba(20,20,20,.28);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* Tema oscuro: por preferencia del sistema o por toggle (data-theme) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #F3F2EE;
    --paper: #0E0E10;
    --surface: #17171B;
    --surface-2: #1F1F24;
    --muted: #A0A0A6;
    --line: #2A2A30;
    --magenta-text: var(--magenta);
    --hero-bg: #0A0A0C;
    --hero-ink: #F3F2EE;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 14px 34px -14px rgba(0,0,0,.6);
    --shadow-lg: 0 26px 70px -20px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"] {
  --ink: #F3F2EE;
  --paper: #0E0E10;
  --surface: #17171B;
  --surface-2: #1F1F24;
  --muted: #A0A0A6;
  --line: #2A2A30;
  --magenta-text: var(--magenta);
  --hero-bg: #0A0A0C;
  --hero-ink: #F3F2EE;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 14px 34px -14px rgba(0,0,0,.6);
  --shadow-lg: 0 26px 70px -20px rgba(0,0,0,.7);
}

/* =====================================================================
   3. RESET Y BASE
   ===================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html:focus-within { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;                /* evita scroll horizontal accidental */
  transition: background-color .4s var(--ease), color .4s var(--ease);
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }

/* Foco visible y accesible en todos los elementos interactivos */
:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Enlace para saltar al contenido (accesibilidad de teclado) */
.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--ink); color: var(--paper);
  padding: .6rem 1rem; border-radius: var(--radius-sm); z-index: 200;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* =====================================================================
   4. TIPOGRAFÍA
   ===================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.01em;
  font-stretch: 118%;                /* look "expanded" del display */
  text-wrap: balance;
  overflow-wrap: break-word;         /* evita desbordes en pantallas pequeñas */
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); font-weight: 700; }
p { text-wrap: pretty; }

/* Etiqueta técnica (eyebrow) con estética de ficha de imprenta */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--magenta-text);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {                    /* marca de registro en miniatura */
  content: "";
  width: 12px; height: 12px;
  background:
    linear-gradient(var(--magenta-text),var(--magenta-text)) center/100% 1.5px no-repeat,
    linear-gradient(var(--magenta-text),var(--magenta-text)) center/1.5px 100% no-repeat;
  border: 1.5px solid var(--magenta-text);
  border-radius: 50%;
  flex: none;
}

.lead { font-size: var(--step-1); color: var(--muted); font-weight: 400; }

/* Palabra resaltada con subrayado CMYK */
.mark-cyan { color: var(--cyan); }
.mark-magenta { color: var(--magenta); }

/* =====================================================================
   5. UTILIDADES DE LAYOUT
   ===================================================================== */
.container { width: min(100% - 2.4rem, var(--maxw)); margin-inline: auto; }
.section { padding-block: var(--section-y); position: relative; }
.section-head { max-width: 62ch; margin-bottom: clamp(2rem, 1.4rem + 2vw, 3.5rem); }
.section-head .lead { margin-top: 1rem; }

.grid { display: grid; gap: var(--gap); }

/* =====================================================================
   6. COMPONENTES FIRMA
   ===================================================================== */

/* --- Barra de color CMYK: divisor recurrente (como el borde de un pliego) --- */
.cmyk-bar {
  display: flex;
  height: 6px;
  width: 100%;
}
.cmyk-bar span { flex: 1; }
.cmyk-bar span:nth-child(1) { background: var(--cyan); }
.cmyk-bar span:nth-child(2) { background: var(--magenta); }
.cmyk-bar span:nth-child(3) { background: var(--yellow); }
.cmyk-bar span:nth-child(4) { background: var(--ink); }

/* --- Botones --- */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .9rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: 110%;
  font-size: var(--step-0);
  border-radius: 999px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
  will-change: transform;
  line-height: 1;
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn-primary { background: var(--magenta); color: #fff; box-shadow: 0 8px 20px -8px rgba(236,0,140,.7); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 28px -8px rgba(236,0,140,.75); }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.btn-ghost { border: 1.5px solid currentColor; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-3px); }
.btn-lg { padding: 1.05rem 1.9rem; }

/* --- Marca de registro decorativa (⊕) --- */
.reg-mark {
  width: 30px; height: 30px; flex: none;
  color: var(--line);
}

/* =====================================================================
   7. HEADER / NAVEGACIÓN
   ===================================================================== */
.site-header {
  position: fixed; top: 0; inset-inline: 0; z-index: 100;
  color: #fff;                       /* legible sobre el hero oscuro (arriba del todo) */
  transition: background-color .3s var(--ease), box-shadow .3s var(--ease), color .3s var(--ease);
}
/* Al hacer scroll, el header queda sobre fondo papel: texto en tinta */
.site-header.is-stuck { color: var(--ink); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding-block: .8rem;
}
/* Fondo del header al hacer scroll (clase añadida por JS) */
.site-header.is-stuck {
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  box-shadow: 0 1px 0 var(--line);
}

/* Logo (cubo SVG + palabra) */
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand__cube { width: 34px; height: 36px; }
.brand__name {
  font-family: var(--font-display); font-weight: 800; font-stretch: 118%;
  font-size: 1.15rem; letter-spacing: .02em; line-height: 1;
}
.brand__name small {
  display: block; font-family: var(--font-mono); font-weight: 500;
  font-size: .52rem; letter-spacing: .28em; color: currentColor; opacity: .6;
  text-transform: uppercase; margin-top: 3px;
}

/* Navegación desktop */
.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2rem); }
.nav__link {
  font-weight: 500; font-size: var(--step--1); letter-spacing: .01em;
  position: relative; padding: .3rem 0;
}
.nav__link::after {                   /* subrayado animado */
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 2px; background: var(--magenta);
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav__link:hover::after, .nav__link:focus-visible::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--magenta-text); }

.header-actions { display: flex; align-items: center; gap: .7rem; }

/* Botón de tema (claro/oscuro) */
.theme-toggle {
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 50%; border: 1.5px solid var(--line);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.theme-toggle:hover { border-color: var(--ink); transform: rotate(20deg); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon,
:root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle .icon-sun { display: none; }
  :root:not([data-theme="dark"]) .theme-toggle .icon-moon { display: block; }
}

/* Botón hamburguesa (solo móvil) */
.nav-toggle { display: none; width: 44px; height: 44px; position: relative; z-index: 120; }
.nav-toggle span {
  position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink);
  border-radius: 2px; transition: transform .3s var(--ease), opacity .2s var(--ease), top .3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 21px; transform: rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* =====================================================================
   8. HERO
   ===================================================================== */
.hero {
  background: var(--hero-bg);
  color: var(--hero-ink);
  padding-top: clamp(7rem, 6rem + 8vw, 11rem);
  padding-bottom: clamp(4rem, 3rem + 6vw, 7rem);
  position: relative;
  overflow: hidden;
}
/* Textura sutil de "pliego": líneas de guía tenues */
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 75%);
  pointer-events: none;
}
/* Halo de color CMYK difuminado */
.hero::after {
  content: ""; position: absolute; top: -20%; right: -10%;
  width: 55vw; height: 55vw; max-width: 720px; max-height: 720px;
  background:
    radial-gradient(circle at 30% 30%, rgba(0,174,239,.35), transparent 60%),
    radial-gradient(circle at 70% 40%, rgba(236,0,140,.32), transparent 60%),
    radial-gradient(circle at 50% 70%, rgba(255,210,0,.30), transparent 60%);
  filter: blur(30px);
  pointer-events: none;
  animation: heroGlow 14s var(--ease) infinite alternate;
}
@keyframes heroGlow { to { transform: translate(-4%, 5%) scale(1.08); } }

.hero__inner { position: relative; z-index: 2; display: grid; gap: 2rem; }
.hero .eyebrow { color: var(--yellow); }
.hero .eyebrow::before { border-color: var(--yellow); background:
  linear-gradient(var(--yellow),var(--yellow)) center/100% 1.5px no-repeat,
  linear-gradient(var(--yellow),var(--yellow)) center/1.5px 100% no-repeat; }

.hero h1 { max-width: 16ch; }

/* Palabra con separación de color CMYK (elemento firma):
   se imprime "fuera de registro" y entra en registro al cargar. */
.registro {
  position: relative;
  display: inline-block;
  color: var(--hero-ink);
}
.registro::before, .registro::after {
  content: attr(data-word);
  position: absolute; inset: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}
.registro::before { color: var(--cyan); animation: regCyan 1.1s var(--ease) .2s both; }
.registro::after  { color: var(--magenta); animation: regMag 1.1s var(--ease) .2s both; }
@keyframes regCyan { from { transform: translate(-10px, 6px); opacity: .9; } to { transform: translate(0,0); opacity: 0; } }
@keyframes regMag  { from { transform: translate(9px, -6px); opacity: .9; } to { transform: translate(0,0); opacity: 0; } }

.hero__lead { max-width: 52ch; color: color-mix(in srgb, var(--hero-ink) 78%, transparent); font-size: var(--step-1); }
.hero__cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: .5rem; }
.hero .btn-ghost { color: var(--hero-ink); }
.hero .btn-ghost:hover { background: var(--hero-ink); color: var(--hero-bg); }

/* Fila de datos duros bajo el hero (prueba social en cifras) */
.hero__stats {
  display: grid; grid-template-columns: repeat(3, auto); gap: clamp(1.5rem, 4vw, 3.5rem);
  margin-top: 1rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(255,255,255,.14);
  width: fit-content;
}
.stat b { font-family: var(--font-display); font-weight: 800; font-stretch: 118%; font-size: var(--step-2); display: block; line-height: 1; }
.stat span { font-family: var(--font-mono); font-size: var(--step--1); color: color-mix(in srgb, var(--hero-ink) 65%, transparent); letter-spacing: .04em; }

/* =====================================================================
   9. BENEFICIOS
   ===================================================================== */
.benefits { background: var(--paper); }
.benefits__grid { grid-template-columns: repeat(4, 1fr); }
.benefit {
  padding: 1.6rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.benefit:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.benefit__icon {
  width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
  margin-bottom: 1rem; color: #fff;
}
.benefit__icon svg { width: 26px; height: 26px; }
.benefit:nth-child(1) .benefit__icon { background: var(--cyan); }
.benefit:nth-child(2) .benefit__icon { background: var(--magenta); }
.benefit:nth-child(3) .benefit__icon { background: var(--yellow); color: var(--ink); }
.benefit:nth-child(4) .benefit__icon { background: var(--ink); }
.benefit h3 { font-size: var(--step-0); font-weight: 700; margin-bottom: .35rem; font-family: var(--font-body); letter-spacing: 0; }
.benefit p { font-size: var(--step--1); color: var(--muted); }

/* =====================================================================
   10. SERVICIOS
   ===================================================================== */
.services__grid { grid-template-columns: repeat(6, 1fr); }
.service {
  grid-column: span 2;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem;
  position: relative; overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  display: flex; flex-direction: column; gap: 1rem;
}
/* Las dos primeras tarjetas ocupan 3 columnas (jerarquía asimétrica) */
.service--wide { grid-column: span 3; }
.service:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
/* Acento de color en el borde superior, distinto por servicio */
.service::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--accent, var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.service:hover::before { transform: scaleX(1); }
.service__num {
  font-family: var(--font-mono); font-size: var(--step--1); font-weight: 600;
  color: var(--accent, var(--cyan)); letter-spacing: .1em;
}
.service h3 { font-family: var(--font-display); font-size: var(--step-1); }
.service p { color: var(--muted); font-size: var(--step--1); }
/* Lista de especificaciones técnicas en mono */
.service__specs { margin-top: auto; display: flex; flex-wrap: wrap; gap: .5rem; }
.spec {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .02em;
  padding: .3rem .6rem; border: 1px solid var(--line); border-radius: 6px;
  color: var(--muted); background: var(--surface-2);
}

/* =====================================================================
   11. NOSOTROS / MAQUINARIA
   ===================================================================== */
.about { background: var(--surface-2); }
.about__grid { grid-template-columns: 1.05fr .95fr; align-items: center; }
.about__media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.about__media .cmyk-bar { position: absolute; bottom: 0; left: 0; right: 0; height: 8px; }
.about__copy .lead { margin: 1rem 0 1.6rem; }

/* Lista de maquinaria/capacidades */
.machines { display: grid; gap: .1rem; margin-top: 1.5rem; }
.machine {
  display: flex; align-items: baseline; gap: 1rem;
  padding: 1rem 0; border-top: 1px solid var(--line);
}
.machine b { font-family: var(--font-display); font-stretch: 110%; font-size: var(--step-0); min-width: 8.5rem; }
.machine span { color: var(--muted); font-size: var(--step--1); }

/* Fila de valores/beneficios de crédito y entrega */
.about__points { display: grid; gap: .8rem; margin-top: 1.5rem; }
.about__points li { display: flex; gap: .7rem; align-items: flex-start; font-size: var(--step--1); }
.about__points svg { width: 20px; height: 20px; color: var(--magenta); flex: none; margin-top: 2px; }

/* =====================================================================
   12. CLIENTES (muro de logos)
   ===================================================================== */
.clients__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.client {
  background: var(--surface);
  display: grid; place-items: center;
  padding: 1.6rem 1rem; min-height: 96px;
}
.client span {
  font-family: var(--font-display); font-weight: 700; font-stretch: 105%;
  font-size: 1.05rem; letter-spacing: .02em;
  color: var(--muted);
  opacity: .7; filter: grayscale(1);
  transition: opacity .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
  text-align: center;
}
.client:hover span { opacity: 1; color: var(--ink); transform: scale(1.06); }

/* =====================================================================
   13. CONTACTO
   ===================================================================== */
.contact { background: var(--hero-bg); color: var(--hero-ink); }
.contact__grid { grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 4vw, 4rem); }
.contact .eyebrow { color: var(--cyan); }
.contact .eyebrow::before { border-color: var(--cyan); background:
  linear-gradient(var(--cyan),var(--cyan)) center/100% 1.5px no-repeat,
  linear-gradient(var(--cyan),var(--cyan)) center/1.5px 100% no-repeat; }
.contact h2 { color: var(--hero-ink); }
.contact__lead { color: color-mix(in srgb, var(--hero-ink) 76%, transparent); margin: 1rem 0 2rem; }

/* Datos de contacto */
.contact__info { display: grid; gap: 1.3rem; }
.contact__item { display: flex; gap: .9rem; align-items: flex-start; }
.contact__item svg { width: 22px; height: 22px; color: var(--yellow); flex: none; margin-top: 3px; }
.contact__item b { font-family: var(--font-display); font-stretch: 110%; display: block; font-size: var(--step-0); }
.contact__item a, .contact__item span { color: color-mix(in srgb, var(--hero-ink) 80%, transparent); font-size: var(--step--1); }
.contact__item a:hover { color: var(--yellow); }

/* Formulario */
.form {
  background: var(--surface); color: var(--ink);
  border-radius: var(--radius); padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  box-shadow: var(--shadow-lg);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.field label { font-size: var(--step--1); font-weight: 600; }
.field .req { color: var(--magenta-text); }
.field input, .field textarea, .field select {
  width: 100%; padding: .8rem .9rem;
  background: var(--surface-2); border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--cyan);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cyan) 25%, transparent);
}
/* Estado de error por campo */
.field.has-error input, .field.has-error textarea { border-color: var(--magenta); }
.field__error { font-size: .78rem; color: var(--magenta-text); min-height: 1em; display: none; }
.field.has-error .field__error { display: block; }

/* Honeypot: oculto para humanos, visible para bots */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form__consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .8rem; color: var(--muted); margin-bottom: 1.2rem; }
.form__consent input { width: 18px; height: 18px; margin-top: 2px; flex: none; accent-color: var(--magenta); }
.form__consent a { color: var(--magenta-text); text-decoration: underline; }

.form button[type="submit"] { width: 100%; justify-content: center; }
.form button[type="submit"][aria-busy="true"] { opacity: .7; pointer-events: none; }

/* Mensaje de resultado (éxito/error) */
.form__status { margin-top: 1rem; padding: .9rem 1rem; border-radius: var(--radius-sm); font-size: var(--step--1); display: none; }
.form__status.is-ok  { display: block; background: color-mix(in srgb, var(--cyan) 16%, var(--surface)); border: 1px solid var(--cyan); }
.form__status.is-err { display: block; background: color-mix(in srgb, var(--magenta) 14%, var(--surface)); border: 1px solid var(--magenta); }

/* =====================================================================
   14. FOOTER
   ===================================================================== */
.site-footer { background: var(--paper); border-top: 1px solid var(--line); }
.footer__grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem;
  padding-block: clamp(2.5rem, 2rem + 3vw, 4rem);
}
.footer__brand .brand { margin-bottom: 1rem; }
.footer__brand p { color: var(--muted); font-size: var(--step--1); max-width: 34ch; }
.footer__col h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin-bottom: 1rem; }
.footer__col li { margin-bottom: .55rem; }
.footer__col a { color: var(--ink); font-size: var(--step--1); }
.footer__col a:hover { color: var(--magenta); }

/* Barra inferior con la atribución Webzi */
.footer__bar {
  border-top: 1px solid var(--line);
  padding-block: 1.2rem;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem;
  font-size: .8rem; color: var(--muted);
}
.webzi-credit { display: inline-flex; align-items: center; gap: .5rem; transition: opacity .2s var(--ease); }
.webzi-credit:hover { opacity: .7; }
/* Logo Webzi discreto (≤20px). En tema oscuro se invierte a blanco vía filtro. */
.webzi-credit img { height: 18px; width: auto; }
:root[data-theme="dark"] .webzi-credit img,
:root:not([data-theme="light"]) .webzi-credit img { filter: invert(1) brightness(2); }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .webzi-credit img { filter: none; }
}

/* =====================================================================
   15. ANIMACIONES / REVELADO AL SCROLL
   ===================================================================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
/* Retraso escalonado para grupos */
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }

/* Respeto por usuarios que prefieren menos movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* =====================================================================
   16. RESPONSIVO
   ===================================================================== */
@media (max-width: 980px) {
  .services__grid { grid-template-columns: repeat(4, 1fr); }
  .service, .service--wide { grid-column: span 2; }
  .about__grid { grid-template-columns: 1fr; }
  .about__media { order: -1; }
  .contact__grid { grid-template-columns: 1fr; }
  .benefits__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  /* Navegación móvil: panel deslizante */
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(80vw, 320px);
    flex-direction: column; align-items: flex-start; justify-content: center;
    gap: 1.4rem; padding: 2rem;
    background: var(--surface);
    color: var(--ink);               /* siempre legible sobre el panel claro */
    /* visibility:hidden saca los enlaces del orden de tabulación cuando el
       panel está cerrado (accesibilidad de teclado), sin romper la animación. */
    visibility: hidden;
    transform: translateX(100%);
    transition: transform .35s var(--ease), visibility .35s var(--ease);
    box-shadow: var(--shadow-lg);
  }
  body.nav-open .nav { transform: translateX(0); visibility: visible; }
  .nav__link { font-size: 1.3rem; font-family: var(--font-display); font-stretch: 112%; }
  /* Telón de fondo del menú */
  .nav-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.5); opacity: 0; visibility: hidden; transition: opacity .3s var(--ease), visibility .3s; z-index: 90; }
  body.nav-open .nav-backdrop { opacity: 1; visibility: visible; }

  .services__grid { grid-template-columns: 1fr; }
  .service, .service--wide { grid-column: span 1; }
  .benefits__grid { grid-template-columns: 1fr; }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: 1fr 1fr; row-gap: 1.2rem; }
  .brand__name small { display: none; }
}

/* Contenedor con scroll horizontal propio para contenido ancho en móvil */
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }