/* ==========================================================================
   Holinnova — Sistema de diseño
   Estética editorial premium · Ivory + Dark Carbon · Acento terracota/oliva
   Tipografía: Fraunces (display) + Hanken Grotesk (texto/UI)
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens -- */
:root {
  /* Color — superficies cálidas */
  --ivory: #F4F1EA;
  --ivory-50: #FBFAF6;
  --sand: #EAE3D6;
  --sand-200: #DDD5C5;
  --sand-acc: #C8B79A;

  /* Color — tinta */
  --carbon: #1B1A17;
  --carbon-800: #26241F;
  --carbon-700: #322F29;
  --ink-600: #4A4640;
  --ink-400: #767066;

  /* Color — líneas y acentos */
  --line: #E0D9CC;
  --line-strong: #CFC6B4;
  --clay: #B65A3C;
  --clay-700: #964127;
  --olive: #6E7155;

  /* Tokens semánticos (modo claro por defecto) */
  --bg: var(--ivory);
  --surface: var(--ivory-50);
  --text: var(--carbon);
  --text-soft: var(--ink-600);
  --text-mute: var(--ink-400);
  --border: var(--line);
  --accent: var(--clay);

  /* Tipografía */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  /* Escala fluida */
  --fs-display: clamp(2.6rem, 1.7rem + 3.6vw, 4.5rem);
  --fs-h1: clamp(2.2rem, 1.6rem + 2.4vw, 3.4rem);
  --fs-h2: clamp(1.8rem, 1.4rem + 1.6vw, 2.6rem);
  --fs-h3: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
  --fs-lead: clamp(1.12rem, 1.04rem + 0.4vw, 1.32rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Forma */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* Profundidad (muy sutil) */
  --shadow-sm: 0 1px 2px rgba(27, 26, 23, 0.04);
  --shadow-md: 0 18px 40px -24px rgba(27, 26, 23, 0.30);

  /* Movimiento */
  --t-fast: 150ms cubic-bezier(0.2, 0.6, 0.2, 1);
  --t: 220ms cubic-bezier(0.2, 0.6, 0.2, 1);

  /* Layout */
  --container: 1180px;
  --container-narrow: 760px;
  --header-h: 74px;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
svg { fill: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; border-radius: 3px; }

/* ----------------------------------------------------------- Tipografía -- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--text);
  font-optical-sizing: auto;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); letter-spacing: -0.01em; }
p { color: var(--text-soft); max-width: 68ch; }
strong { color: var(--text); font-weight: 600; }
.font-display { font-family: var(--font-display); }

/* --------------------------------------------------------------- Layout --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 0.5rem + 3vw, 2.5rem);
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: clamp(3.5rem, 2rem + 6vw, 7.5rem); }
.section--tight { padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem); }

/* Inversión de tokens en superficies oscuras */
.section--dark {
  --bg: var(--carbon);
  --surface: var(--carbon-800);
  --text: var(--ivory);
  --text-soft: #C9C2B5;
  --text-mute: #968F82;
  --border: #38342D;
  background: var(--carbon);
  color: var(--ivory);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--ivory); }
.section--sand { background: var(--sand); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--text-soft);
  max-width: 60ch;
}

/* Eyebrow — etiqueta de sección */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: var(--space-4);
}
.section--dark .eyebrow { color: var(--sand-acc); }
.eyebrow::before {
  content: "";
  width: 1.6rem; height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.section-head { max-width: 60ch; margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem); }
.section-head .lead { margin-top: var(--space-4); }
.text-center { text-align: center; }
.text-center .eyebrow { justify-content: center; }
.text-center .section-head,
.mx-auto { margin-inline: auto; }

/* -------------------------------------------------------------- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.97rem;
  line-height: 1;
  padding: 0.85rem 1.4rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  transition: transform var(--t-fast), background var(--t), border-color var(--t), color var(--t);
  white-space: nowrap;
}
.btn .ico { width: 1.05em; height: 1.05em; }
.btn--primary { background: var(--carbon); color: var(--ivory); }
.btn--primary:hover { background: #000; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.section--dark .btn--primary { background: var(--ivory); color: var(--carbon); }
.section--dark .btn--primary:hover { background: #fff; }

.btn--secondary { background: transparent; color: var(--text); border-color: var(--border); }
.btn--secondary:hover { border-color: var(--text); background: rgba(27,26,23,0.03); transform: translateY(-1px); }
.section--dark .btn--secondary { border-color: #4a463d; color: var(--ivory); }
.section--dark .btn--secondary:hover { border-color: var(--ivory); background: rgba(255,255,255,0.05); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* Link con subrayado animado */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--clay);
  width: fit-content;
}
.section--dark .link-arrow { color: var(--sand-acc); }
.link-arrow .ico { transition: transform var(--t); }
.link-arrow:hover .ico { transform: translateX(4px); }

/* ----------------------------------------------------------------- Hero --- */
.hero { padding-top: clamp(3rem, 2rem + 4vw, 5.5rem); padding-bottom: clamp(3rem, 2rem + 4vw, 6rem); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 1rem + 4vw, 4.5rem);
  align-items: center;
}
.hero h1 { font-size: var(--fs-display); margin-bottom: var(--space-6); }
.hero .lead { margin-bottom: var(--space-8); font-size: var(--fs-lead); max-width: 46ch; }
.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; }

/* Tira de encuadre */
.strip { border-block: 1px solid var(--border); }
.strip-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-block: var(--space-8);
}
.strip-item { display: flex; gap: 0.7rem; align-items: flex-start; color: var(--text-soft); font-size: 0.98rem; }
.strip-item .ico { color: var(--clay); width: 1.3rem; height: 1.3rem; flex: none; margin-top: 0.1rem; }

/* ---------------------------------------------------------------- Cards --- */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 1rem + 1.5vw, 2.1rem);
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  height: 100%;
}
a.card:hover, .card--link:hover { transform: translateY(-3px); border-color: var(--text); box-shadow: var(--shadow-md); }
.card .card-ico {
  width: 2.6rem; height: 2.6rem;
  display: grid; place-items: center;
  border-radius: 10px;
  background: var(--ivory); border: 1px solid var(--border);
  color: var(--clay);
  margin-bottom: var(--space-2);
}
.section--dark .card .card-ico { background: var(--carbon-700); }
.card .card-ico .ico { width: 1.4rem; height: 1.4rem; }
.card h3 { margin-bottom: 0.15rem; }
.card p { font-size: 0.98rem; color: var(--text-soft); }
.card .link-arrow { margin-top: auto; padding-top: var(--space-2); }

/* Tarjeta destacada (servicio principal) */
.card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 1rem + 2vw, 3rem);
  align-items: center;
  background: var(--carbon);
  color: var(--ivory);
  border-color: var(--carbon);
}
.card--featured h3 { color: var(--ivory); font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); }
.card--featured p { color: #C9C2B5; }
.card--featured .card-ico { background: var(--carbon-700); border-color: #3a362e; color: var(--sand-acc); }
.card--featured .link-arrow { color: var(--sand-acc); }
.card--featured .feat-visual svg { width: 100%; }
.card--featured .badge { margin-bottom: var(--space-2); }

.badge {
  display: inline-block;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--clay);
  background: rgba(182,90,60,0.10);
  border: 1px solid rgba(182,90,60,0.25);
  padding: 0.3rem 0.6rem; border-radius: var(--r-pill);
}
.section--dark .badge, .card--featured .badge { color: var(--sand-acc); background: rgba(200,183,154,0.12); border-color: rgba(200,183,154,0.28); }

/* ---------------------------------------------------- Feature (destacado) - */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: clamp(2rem, 1rem + 4vw, 4.5rem);
  align-items: center;
}
.feature-list { display: grid; gap: var(--space-4); margin-top: var(--space-8); }
.feature-list li { display: flex; gap: 0.75rem; align-items: flex-start; color: var(--text-soft); }
.feature-list .ico { color: var(--sand-acc); width: 1.3rem; height: 1.3rem; flex: none; margin-top: 0.15rem; }

/* --------------------------------------------------------- Pasos / método - */
.steps { display: grid; gap: 0; counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 0.5rem + 2vw, 2.5rem);
  padding-block: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
  border-top: 1px solid var(--border);
  align-items: baseline;
}
.step:last-child { border-bottom: 1px solid var(--border); }
.step-n {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.4rem);
  color: var(--clay);
  font-weight: 500;
  line-height: 1;
}
.section--dark .step-n { color: var(--sand-acc); }
.step-body h3 { margin-bottom: 0.4rem; }
.step-body p { max-width: 62ch; }

/* ---------------------------------------------------------------- Cifras -- */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.metric { padding: var(--space-6) 0; border-top: 2px solid var(--clay); }
.metric .num { font-family: var(--font-display); font-size: clamp(2rem, 1.5rem + 2vw, 3rem); font-weight: 500; line-height: 1; }
.metric .lab { color: var(--text-mute); font-size: 0.95rem; margin-top: var(--space-2); }
.section--dark .metric { border-color: var(--sand-acc); }

/* --------------------------------------------------------------- Beneficios */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.benefit { display: flex; flex-direction: column; gap: var(--space-2); }
.benefit .b-ico { color: var(--clay); width: 1.6rem; height: 1.6rem; }
.benefit h3 { font-family: var(--font-sans); font-weight: 600; font-size: 1.05rem; letter-spacing: 0; }
.benefit p { font-size: 0.97rem; }

/* ------------------------------------------------------------------ Chips - */
.chips { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-pill);
  padding: 0.5rem 1.1rem;
  font-size: 0.95rem;
  color: var(--text-soft);
  transition: border-color var(--t), color var(--t);
}
.chip:hover { border-color: var(--text); color: var(--text); }
a.chip { text-decoration: none; }
.chip .ico { width: 1.05rem; height: 1.05rem; color: var(--clay); flex: none; }
.section--dark .chip .ico { color: var(--sand-acc); }

/* --------------------------------------------------------- Casos de uso --- */
.usecase {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 1rem + 1.5vw, 2rem);
  height: 100%;
}
.usecase .card-ico { margin-bottom: var(--space-4); }
.usecase h3 { margin-bottom: var(--space-4); }
.usecase dl { display: grid; gap: var(--space-3); }
.usecase dt { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-mute); }
.usecase dd { color: var(--text-soft); font-size: 0.98rem; margin-top: 0.15rem; }
.usecase .uc-value dd { color: var(--text); font-weight: 500; }

/* ----------------------------------------------------------- Prosa / bullets */
.prose p + p { margin-top: var(--space-4); }
.prose h2 { margin-bottom: var(--space-4); }
.bullets { display: grid; gap: var(--space-3); margin-top: var(--space-2); }
.bullets.cols-2 { grid-template-columns: 1fr 1fr; column-gap: var(--space-8); }
.bullets li { display: flex; gap: 0.7rem; align-items: flex-start; color: var(--text-soft); }
.bullets .ico { color: var(--clay); width: 1.25rem; height: 1.25rem; flex: none; margin-top: 0.18rem; }
.section--dark .bullets .ico { color: var(--sand-acc); }

.note {
  border-left: 2px solid var(--clay);
  background: var(--surface);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: var(--space-6);
  margin-top: var(--space-8);
}
.note h3 { font-family: var(--font-sans); font-size: 1.02rem; font-weight: 600; margin-bottom: var(--space-2); letter-spacing: 0; }
.note p { font-size: 0.98rem; }

/* ------------------------------------------------------- Contacto canales - */
.channels { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.channel {
  display: flex; align-items: center; gap: var(--space-4);
  border: 1px solid var(--border); border-radius: var(--r-md);
  padding: var(--space-6); background: var(--surface);
  transition: border-color var(--t), transform var(--t);
}
.channel:hover { border-color: var(--text); transform: translateY(-2px); }
.channel .card-ico {
  width: 2.6rem; height: 2.6rem;
  display: grid; place-items: center;
  border-radius: 10px;
  background: var(--ivory); border: 1px solid var(--border);
  color: var(--clay);
  margin: 0; flex: none;
}
.channel .card-ico .ico { width: 1.4rem; height: 1.4rem; }
.channel .ch-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-mute); }
.channel .ch-value { font-weight: 600; color: var(--text); word-break: break-word; }

/* =========================================================== Header ====== */
.skip-link {
  position: absolute; left: 1rem; top: -3rem;
  background: var(--carbon); color: var(--ivory);
  padding: 0.6rem 1rem; border-radius: var(--r-sm); z-index: 200;
  transition: top var(--t);
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(244,241,234,0.82);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t);
}
.site-header.is-scrolled { border-bottom-color: var(--border); background: rgba(244,241,234,0.94); }
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.logo { display: inline-flex; align-items: center; gap: 0.6rem; }
.logo .mark { width: 2rem; height: 2rem; flex: none; }
.logo .word { display: flex; flex-direction: column; line-height: 1; }
.logo .word b { font-family: var(--font-display); font-weight: 600; font-size: 1.32rem; letter-spacing: -0.02em; color: var(--carbon); }
.logo .word small { font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-400); margin-top: 0.28rem; }

/* Navegación */
.main-nav { display: flex; align-items: center; gap: var(--space-1); }
.nav-list { display: flex; align-items: center; gap: 0.15rem; }
.nav-list > li > a, .nav-trigger {
  display: inline-flex; align-items: center; gap: 0.3rem; white-space: nowrap;
  padding: 0.55rem 0.8rem; border-radius: var(--r-sm);
  font-size: 0.95rem; font-weight: 500; color: var(--text-soft);
  transition: color var(--t), background var(--t);
}
.nav-list > li > a:hover, .nav-trigger:hover, .nav-list .is-active > a { color: var(--carbon); }
.nav-list .is-active > a { font-weight: 600; }
.nav-trigger .chev { width: 0.85em; height: 0.85em; transition: transform var(--t); }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 0.5rem); left: 0;
  min-width: 320px;
  background: var(--ivory-50);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-3);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown,
.has-dropdown.open .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a {
  display: flex; gap: 0.75rem; align-items: flex-start;
  padding: 0.7rem 0.8rem; border-radius: var(--r-sm);
  transition: background var(--t);
}
.dropdown li a:hover { background: var(--sand); }
.dropdown .d-ico { color: var(--clay); width: 1.25rem; height: 1.25rem; flex: none; margin-top: 0.15rem; }
.dropdown .d-title { font-weight: 600; font-size: 0.95rem; color: var(--carbon); }
.dropdown .d-desc { font-size: 0.83rem; color: var(--text-mute); }
.dropdown .d-featured { background: var(--sand); }
.dropdown .d-sep { height: 1px; background: var(--border); margin: var(--space-2) 0.4rem; }
.dropdown .d-all { font-weight: 600; color: var(--clay); font-size: 0.9rem; }

/* Acciones header */
.header-actions { display: flex; align-items: center; gap: var(--space-2); }
/* En desktop, el selector y el botón viven en .header-actions; ocultamos las copias del panel mobile */
.main-nav > .lang-switch, .main-nav > .btn { display: none; }
.lang-switch { display: inline-flex; border: 1px solid var(--border); border-radius: var(--r-pill); overflow: hidden; }
.lang-switch a { padding: 0.35rem 0.7rem; font-size: 0.82rem; font-weight: 600; color: var(--text-mute); transition: background var(--t), color var(--t); }
.lang-switch a.is-current { background: var(--carbon); color: var(--ivory); }

/* Hamburguesa */
.menu-toggle { display: none; width: 2.75rem; height: 2.75rem; border-radius: var(--r-sm); align-items: center; justify-content: center; }
.menu-toggle span { position: relative; width: 20px; height: 2px; background: var(--carbon); border-radius: 2px; transition: background var(--t); }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--carbon); border-radius: 2px; transition: transform var(--t); }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
body.nav-open .menu-toggle span { background: transparent; }
body.nav-open .menu-toggle span::before { transform: translateY(6px) rotate(45deg); }
body.nav-open .menu-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* =========================================================== Footer ====== */
.site-footer { background: var(--carbon); color: var(--ivory); padding-block: clamp(3rem, 2rem + 3vw, 5rem); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--space-8); padding-bottom: var(--space-12); border-bottom: 1px solid #38342D; }
.footer-brand .logo .word b { color: var(--ivory); }
.footer-brand .logo .word small { color: var(--sand-acc); }
.footer-brand p { color: #C9C2B5; margin-top: var(--space-4); max-width: 34ch; font-size: 0.97rem; }
.footer-col h4 { font-family: var(--font-sans); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--sand-acc); margin-bottom: var(--space-4); font-weight: 600; }
.footer-col li { margin-bottom: var(--space-3); }
.footer-col a { color: #C9C2B5; font-size: 0.96rem; transition: color var(--t); }
.footer-col a:hover { color: var(--ivory); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; align-items: center; padding-top: var(--space-6); color: var(--text-mute); font-size: 0.88rem; }
.footer-bottom .lang-switch { border-color: #38342D; }
.footer-bottom .lang-switch a.is-current { background: var(--ivory); color: var(--carbon); }

/* ===================================================== Scroll reveal ===== */
/* Estado inicial oculto SOLO cuando hay JS (clase .js). Sin JS, todo es visible. */
.reveal { transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2,0.6,0.2,1); }
.js .reveal { opacity: 0; transform: translateY(16px); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 90ms; }
.reveal[data-delay="2"] { transition-delay: 180ms; }
.reveal[data-delay="3"] { transition-delay: 270ms; }

/* Trazado animado de diagramas */
.js .draw path, .js .draw line, .js .draw circle, .js .draw polyline { stroke-dasharray: var(--len, 600); stroke-dashoffset: var(--len, 600); }
.js .draw.is-visible path, .js .draw.is-visible line, .js .draw.is-visible circle, .js .draw.is-visible polyline {
  animation: draw 1.6s cubic-bezier(0.4,0,0.2,1) forwards;
}
.js .draw.is-visible .dot { animation: fadein 0.8s ease forwards; opacity: 0; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadein { to { opacity: 1; } }

/* ====================================================== Responsive ======= */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-12) var(--space-8); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 460px; }
  .feature-grid { grid-template-columns: 1fr; }
  .card--featured { grid-template-columns: 1fr; }
  .card--featured .feat-visual { order: -1; max-width: 420px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .metrics { grid-template-columns: repeat(3, 1fr); }
  .bento { grid-template-columns: 1fr 1fr; }

  /* Nav mobile */
  .site-header, .site-header.is-scrolled { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--ivory); }
  .menu-toggle { display: inline-flex; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 0 0;
    background: var(--ivory);
    flex-direction: column; align-items: stretch;
    padding: var(--space-6) clamp(1.25rem, 0.5rem + 3vw, 2.5rem) var(--space-12);
    gap: 0; overflow-y: auto;
    transform: translateX(100%); transition: transform var(--t);
    border-top: 1px solid var(--border);
  }
  body.nav-open .main-nav { transform: translateX(0); }
  body.nav-open { overflow: hidden; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list > li { border-bottom: 1px solid var(--border); }
  .nav-list > li > a, .nav-trigger { padding: 1rem 0.25rem; font-size: 1.1rem; width: 100%; justify-content: space-between; }
  .has-dropdown { position: static; }
  .dropdown {
    position: static; min-width: 0; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; background: transparent; padding: 0 0 var(--space-4) 0;
    max-height: 0; overflow: hidden; transition: max-height var(--t);
  }
  .has-dropdown:hover .dropdown { /* evita apertura por hover en touch */ max-height: 0; }
  .has-dropdown.open .dropdown { max-height: 720px; }
  .nav-trigger .chev { transition: transform var(--t); }
  .has-dropdown.open .nav-trigger .chev { transform: rotate(180deg); }
  .header-actions > .lang-switch, .header-actions > .btn { display: none; }
  .main-nav > .lang-switch { display: inline-flex; margin-top: var(--space-6); align-self: flex-start; }
  .main-nav > .btn { display: flex; margin-top: var(--space-6); width: 100%; justify-content: center; }
}
@media (max-width: 560px) {
  .strip-inner { grid-template-columns: 1fr; gap: var(--space-4); padding-block: var(--space-6); }
  .grid-3, .grid-2, .grid-4, .bento, .channels { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr; gap: var(--space-2); }
  .metric { padding: var(--space-4) 0; }
  .bullets.cols-2 { grid-template-columns: 1fr; }
  .step { grid-template-columns: auto 1fr; gap: var(--space-4); }
  .footer-top { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* ================================================= Reduced motion ======== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .draw path, .draw line, .draw circle, .draw polyline { stroke-dashoffset: 0 !important; }
  .draw .dot { opacity: 1 !important; }
}