/* ==========================================================================
   LEX83 · Sistema visual (Fase 1)
   Diseño minimalista premium. Base neutra + un único acento configurable.
   Todo el sistema se controla desde los design tokens de :root.
   ========================================================================== */

/* --- Design tokens ------------------------------------------------------- */
:root {
  /* ===== Identidad LEX83 — ROJO · BLANCO · NEGRO =====
     Blanco = espacio · Negro = estructura · Rojo = firma (CTA, activo, énfasis).
     Cambia SOLO --lex-red para reajustar el acento de toda la experiencia. */
  --lex-white: #ffffff;
  --lex-black: #0a0a0b;
  --lex-red: #d40028;          /* rojo de marca, intenso y accesible */
  --lex-red-600: #b60022;      /* hover */
  --lex-red-700: #93001b;      /* activo/pressed */
  --lex-red-tint: #fceaed;     /* tinte muy sutil para fondos puntuales */

  /* El sistema hereda del rojo de marca a través de --accent. */
  --accent: var(--lex-red);
  --accent-600: var(--lex-red-600);
  --accent-700: var(--lex-red-700);
  --accent-tint: var(--lex-red-tint);
  --on-accent: #ffffff;

  /* Rojo de ERROR — deliberadamente distinto del rojo de marca (más oscuro/ladrillo). */
  --error: #9a1b12;
  --error-tint: #fbeceb;

  /* Neutros derivados de blanco/negro */
  --ink: #0a0a0b;
  --ink-soft: #1b1c22;
  --paper: #ffffff;
  --paper-2: #f6f6f4;   /* off-white neutro */
  --paper-3: #ededea;
  --muted: #60616a;
  --muted-2: #8a8b93;

  /* Líneas y superficies */
  --line: rgba(10, 10, 11, 0.10);
  --line-strong: rgba(10, 10, 11, 0.16);
  --surface: #ffffff;
  --surface-ink: #0a0a0b;

  /* Tipografía */
  --font-sans: var(--font-inter, "Inter"), system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --tracking-tight: -0.02em;
  --tracking-tighter: -0.03em;

  /* Escala tipográfica fluida (clamp) */
  --step--1: clamp(0.82rem, 0.79rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1:  clamp(1.2rem, 1.12rem + 0.4vw, 1.45rem);
  --step-2:  clamp(1.45rem, 1.3rem + 0.75vw, 1.95rem);
  --step-3:  clamp(1.85rem, 1.55rem + 1.5vw, 2.9rem);
  --step-4:  clamp(2.3rem, 1.8rem + 2.6vw, 4rem);
  --step-5:  clamp(2.9rem, 2rem + 4.4vw, 5.6rem);

  /* Spacing */
  --space-2xs: 0.375rem;
  --space-xs: 0.625rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;

  /* Radios */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(11, 11, 13, 0.04), 0 1px 1px rgba(11, 11, 13, 0.03);
  --shadow: 0 12px 30px -12px rgba(11, 11, 13, 0.16);
  --shadow-lg: 0 30px 60px -24px rgba(11, 11, 13, 0.22);

  /* Layout */
  --container: 1200px;
  --container-narrow: 820px;
  --gutter: clamp(1.15rem, 4vw, 2.5rem);

  /* Movimiento — sistema LEX83 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0.05, 0.36, 1);
  --dur-1: 160ms;
  --dur-2: 280ms;
  --dur-3: 520ms;
  /* Tokens con nomenclatura del anexo de dirección artística */
  --duration-fast: 220ms;   /* microinteracciones 150–300 ms */
  --duration-base: 520ms;   /* entradas/salidas 400–700 ms */
  --duration-slow: 680ms;

  /* z-index */
  --z-header: 100;
  --z-overlay: 200;
  --z-top: 300;

  --header-h: 72px;
}

/* --- Reset / base -------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
svg { fill: currentColor; }

a { color: inherit; text-decoration: none; }

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

button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }

input, textarea, select, button { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent); color: var(--on-accent); }

/* Skip link accesible */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: var(--z-top);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: top var(--dur-1) var(--ease);
}
.skip-link:focus { top: 12px; }

/* --- Tipografía ---------------------------------------------------------- */
h1, h2, h3, h4 {
  line-height: 1.08;
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
  text-wrap: balance;
}
h1 { font-size: var(--step-5); letter-spacing: var(--tracking-tighter); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p { text-wrap: pretty; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent);
}

.lead { font-size: var(--step-1); color: var(--muted); line-height: 1.5; }
.text-muted { color: var(--muted); }
.accent { color: var(--accent); }

/* --- Layout -------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: clamp(3.5rem, 8vw, var(--space-3xl)); }
.section--tight { padding-block: clamp(2.5rem, 5vw, var(--space-2xl)); }
.section--ink { background: var(--surface-ink); color: var(--paper); }
.section--paper2 { background: var(--paper-2); }

.section-head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.section-head .eyebrow { margin-bottom: 1rem; }
.section-head p { margin-top: 1rem; }

.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.75rem); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* --- Botones ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.4rem;
  border-radius: 10px;
  font-weight: 500;
  font-size: var(--step-0);
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  transition: transform var(--dur-1) var(--ease),
              background var(--dur-2) var(--ease),
              color var(--dur-2) var(--ease),
              border-color var(--dur-2) var(--ease),
              box-shadow var(--dur-2) var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn .btn__icon { transition: transform var(--dur-2) var(--ease); }
.btn:hover .btn__icon { transform: translateX(3px); }

.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--accent); }

.btn--accent { background: var(--accent); color: var(--on-accent); box-shadow: 0 10px 24px -12px var(--accent); }
.btn--accent:hover { background: var(--accent-600); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); }

.btn--on-ink { background: var(--paper); color: var(--ink); }
.btn--on-ink:hover { background: var(--accent); color: var(--on-accent); }

.btn--ghost-ink { border-color: rgba(255,255,255,0.28); color: var(--paper); }
.btn--ghost-ink:hover { border-color: var(--paper); background: var(--paper); color: var(--ink); }

.btn--lg { padding: 1.05rem 1.8rem; font-size: var(--step-1); }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: gap var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}
.link-arrow:hover { gap: 0.75rem; color: var(--accent); border-color: var(--accent); }

/* --- Header -------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-2) var(--ease), background var(--dur-2) var(--ease), backdrop-filter var(--dur-2) var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.12rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}
.brand__dot { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 0.35rem; }
.nav a {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: var(--step-0);
  color: var(--muted);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.nav a:hover { color: var(--ink); background: var(--paper-3); }
.nav a[aria-current="page"] { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 0.6rem; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur-2) var(--ease), opacity var(--dur-1) var(--ease);
}
.nav-toggle span::before { transform: translateY(-6px); }
.nav-toggle span::after { transform: translateY(4.5px); }

/* Menú móvil */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--paper);
  padding: calc(var(--header-h) + 1.5rem) var(--gutter) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transform: translateY(-101%);
  visibility: hidden;
  transition: transform var(--dur-3) var(--ease), visibility var(--dur-3);
}
.mobile-nav.is-open { transform: translateY(0); visibility: visible; }
.mobile-nav a {
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: -0.02em;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.mobile-nav a:last-of-type { border-bottom: none; }
.mobile-nav .btn { margin-top: 1.25rem; }

body.nav-open { overflow: hidden; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: rotate(-45deg); }

/* --- Hero ---------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(3rem, 9vw, 7.5rem) clamp(3rem, 7vw, 5.5rem);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero h1 { margin-block: 1.25rem 0; }
.hero .lead { max-width: 34ch; margin-top: 1.5rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.hero__meta .stat strong {
  display: block;
  font-size: var(--step-2);
  letter-spacing: -0.03em;
  font-weight: 600;
}
.hero__meta .stat span { font-size: var(--step--1); color: var(--muted); }

.hero__visual { position: relative; }

/* Composición visual del hero (SVG/mockup) */
.visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.visual-card__bar {
  display: flex;
  gap: 6px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.visual-card__bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.visual-card__body { padding: clamp(1.1rem, 2.5vw, 1.8rem); }

.float-badge {
  position: absolute;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--step--1);
  font-weight: 500;
}
.float-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--lex-red); box-shadow: 0 0 0 4px color-mix(in srgb, var(--lex-red) 16%, transparent); }
.float-badge--tl { top: -18px; left: -18px; }
.float-badge--br { bottom: -18px; right: -18px; }

/* --- Franja de valor / proof -------------------------------------------- */
.value-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1rem,2.5vw,2rem); }
.value-item { padding-top: 1.25rem; border-top: 2px solid var(--ink); }
.value-item h3 { font-size: var(--step-0); font-weight: 600; margin-bottom: 0.35rem; }
.value-item p { font-size: var(--step--1); color: var(--muted); }

.proof-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2.5rem;
  opacity: 0.7;
}
.proof-row span { font-weight: 600; letter-spacing: -0.01em; color: var(--muted); }

/* --- Cards de servicio --------------------------------------------------- */
.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.4rem, 2.5vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.service-card.is-featured { border-color: var(--ink); box-shadow: var(--shadow); }
.service-card__tag {
  align-self: flex-start;
  font-size: var(--step--1);
  color: var(--accent);
  background: var(--accent-tint);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
  font-weight: 500;
}
.service-card h3 { margin-bottom: 0.5rem; }
.service-card__ideal { font-size: var(--step--1); color: var(--muted); margin-bottom: 1.25rem; }
.service-card__list { display: grid; gap: 0.6rem; margin: 0.5rem 0 1.75rem; }
.service-card__list li { display: flex; gap: 0.6rem; font-size: var(--step-0); align-items: flex-start; }
.service-card__list li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--accent-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23d40028' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 12px no-repeat;
}
.service-card__foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.service-card__price { font-weight: 600; letter-spacing: -0.02em; }
.service-card__price small { display: block; font-size: var(--step--1); color: var(--muted); font-weight: 400; }

/* --- Cards de proyecto --------------------------------------------------- */
.project-card {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease);
}
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.project-card__media { position: relative; aspect-ratio: 16 / 11; overflow: hidden; background: var(--paper-3); }
.project-card__media > * { width: 100%; height: 100%; }
.project-card__media img,
.project-card__media svg { object-fit: cover; transition: transform var(--dur-3) var(--ease); }
.project-card:hover .project-card__media img,
.project-card:hover .project-card__media svg { transform: scale(1.04); }
.project-card__body { padding: clamp(1.2rem, 2vw, 1.6rem); }
.project-card__meta { display: flex; justify-content: space-between; gap: 1rem; font-size: var(--step--1); color: var(--muted); margin-bottom: 0.6rem; }
.project-card h3 { font-size: var(--step-1); margin-bottom: 0.4rem; }
.project-card__result { font-size: var(--step-0); color: var(--muted); }
.project-card__result strong { color: var(--ink); }

/* --- Proceso ------------------------------------------------------------- */
.process-steps { counter-reset: step; display: grid; gap: 0; }
.process-step {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.process-step:last-child { border-bottom: 1px solid var(--line); }
.process-step__num {
  font-size: var(--step-2);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--lex-red);
  font-variant-numeric: tabular-nums;
}
.process-step__num::before { content: counter(step, decimal-leading-zero); }
.process-step h3 { margin-bottom: 0.5rem; }
.process-step p { color: var(--muted); max-width: 60ch; }
.section--ink .process-step { border-color: rgba(255,255,255,0.14); }
.section--ink .process-step p { color: rgba(255,255,255,0.66); }
.section--ink .process-step__num { color: var(--lex-red); }

/* --- Diferenciadores ----------------------------------------------------- */
.feature { padding: clamp(1.3rem,2.5vw,1.9rem); border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); height: 100%; }
.feature__icon {
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: var(--accent-tint); color: var(--accent);
  margin-bottom: 1rem;
}
.feature h3 { font-size: var(--step-0); font-weight: 600; margin-bottom: 0.4rem; }
.feature p { font-size: var(--step--1); color: var(--muted); }

/* --- FAQ ----------------------------------------------------------------- */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  text-align: left;
  padding: clamp(1.1rem, 2vw, 1.5rem) 0;
  font-size: var(--step-1);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.faq__q .faq__icon { flex: none; position: relative; width: 20px; height: 20px; }
.faq__q .faq__icon::before,
.faq__q .faq__icon::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  background: var(--ink); transition: transform var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}
.faq__q .faq__icon::before { width: 100%; height: 1.5px; }
.faq__q .faq__icon::after { width: 1.5px; height: 100%; }
.faq__q[aria-expanded="true"] .faq__icon::after { transform: scaleY(0); opacity: 0; }
.faq__a { overflow: hidden; height: 0; transition: height var(--dur-2) var(--ease); }
.faq__a-inner { padding-bottom: clamp(1.1rem, 2vw, 1.5rem); color: var(--muted); max-width: 68ch; }

/* --- Formulario ---------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.15rem; }
.field { display: flex; flex-direction: column; gap: 0.45rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: var(--step--1); font-weight: 500; }
.field label .req { color: var(--accent); }
.field .hint { font-size: var(--step--1); color: var(--muted-2); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: var(--step-0);
  color: var(--ink);
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.field .error-msg { font-size: var(--step--1); color: var(--error); display: none; }
.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea { border-color: var(--error); }
.field.is-invalid .error-msg { display: block; }

.consent { display: flex; gap: 0.65rem; align-items: flex-start; font-size: var(--step--1); color: var(--muted); }
.consent input { width: auto; margin-top: 3px; accent-color: var(--accent); }

.form-status { display: none; padding: 1rem 1.25rem; border-radius: var(--radius-sm); font-size: var(--step-0); }
.form-status.is-visible { display: block; }
.form-status--success { background: #ecfdf3; color: #05603a; border: 1px solid #a6f4c5; }
.form-status--error { background: var(--error-tint); color: var(--error); border: 1px solid color-mix(in srgb, var(--error) 30%, white); }

.btn.is-loading { pointer-events: none; opacity: 0.75; }
.btn.is-loading .btn__label { opacity: 0.6; }

/* --- CTA final ----------------------------------------------------------- */
.cta-block {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}
.cta-block h2 { margin-bottom: 1rem; }
.cta-block p { margin-bottom: 2rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }

/* --- Footer -------------------------------------------------------------- */
.site-footer { background: var(--surface-ink); color: var(--paper); padding-block: clamp(3rem, 6vw, 5rem) 2rem; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.14); }
.footer-brand .brand { color: var(--paper); font-size: 1.5rem; }
.footer-brand p { color: rgba(255,255,255,0.6); margin-top: 1rem; max-width: 34ch; font-size: var(--step-0); }
.footer-col h4 { font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.12em; color: rgba(255,255,255,0.5); margin-bottom: 1.1rem; font-weight: 500; }
.footer-col a { display: block; color: rgba(255,255,255,0.78); padding: 0.35rem 0; transition: color var(--dur-1) var(--ease); }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; padding-top: 2rem; color: rgba(255,255,255,0.55); font-size: var(--step--1); }
.footer-bottom .legal-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-bottom a:hover { color: var(--paper); }

/* --- Page hero (inner pages) -------------------------------------------- */
.page-hero { padding-block: clamp(3rem, 7vw, 6rem) clamp(2rem, 4vw, 3.5rem); }
.page-hero h1 { font-size: var(--step-4); max-width: 18ch; }
.page-hero .lead { max-width: 60ch; margin-top: 1.5rem; }

/* --- Reveal (scroll) ----------------------------------------------------- */
/* El estado oculto solo se aplica si hay JS (clase .js en <html>), para que
   sin JavaScript todo el contenido sea visible (mejora progresiva). */
html.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
html.js [data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-reveal-delay="1"] { transition-delay: 70ms; }
[data-reveal][data-reveal-delay="2"] { transition-delay: 140ms; }
[data-reveal][data-reveal-delay="3"] { transition-delay: 210ms; }
[data-reveal][data-reveal-delay="4"] { transition-delay: 280ms; }

/* --- Utilidades ---------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 520px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 820px) {
  .nav, .header-actions .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .value-strip { grid-template-columns: repeat(2, 1fr); row-gap: 1.75rem; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .value-strip { grid-template-columns: 1fr; }
  .hero__meta { gap: 1.25rem 2rem; }
  .footer-top { grid-template-columns: 1fr; }
  .process-step { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* --- Reduced motion ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* --- Print --------------------------------------------------------------- */
@media print {
  .site-header, .site-footer, .nav-toggle, .mobile-nav, .hero__visual { display: none; }
  body { color: #000; background: #fff; }
}