/* ============================================================
   Nexum Consultores — Landing page
   Paleta: edita las variables en :root para cambiar el tema.
   ============================================================ */

:root {
  --color-primary: #1e3a5f;
  --color-primary-dark: #15294a;
  --color-accent: #2563eb;
  --color-accent-dark: #1d4ed8;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 18px 40px rgba(15, 23, 42, 0.10), 0 4px 12px rgba(15, 23, 42, 0.06);

  --container: 1200px;
  --header-height: 72px;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --transition: 200ms ease;
}

/* ----- Reset --------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }

/* ----- Base ---------------------------------------------------------- */

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* Focus visible — accesibilidad */
:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ----- Botones ------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: background-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background-color: var(--color-accent-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border-strong);
}
.btn--secondary:hover { background-color: var(--color-surface); border-color: var(--color-primary); }

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}
.btn--ghost:hover { background-color: var(--color-primary); color: #fff; }

/* ----- Header / Navegación ------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.15rem;
}
.brand__mark { display: inline-flex; color: var(--color-primary); }
.brand__name { letter-spacing: -0.01em; }
.brand__dot { color: var(--color-accent); }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.primary-nav__list {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}
.primary-nav__list a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}
.primary-nav__list a:hover { color: var(--color-primary); }
.primary-nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition);
}
.primary-nav__list a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
}
.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.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);
}

/* ----- Hero ---------------------------------------------------------- */

.hero {
  position: relative;
  padding: clamp(3rem, 7vw, 6rem) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(1200px 400px at 80% -10%, rgba(37, 99, 235, 0.08), transparent 60%),
    radial-gradient(900px 350px at 0% 10%, rgba(30, 58, 95, 0.06), transparent 60%),
    var(--color-bg);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}
.hero__accent {
  background: linear-gradient(120deg, var(--color-accent) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 36rem;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}
.hero__badges li {
  display: flex;
  flex-direction: column;
}
.hero__badges strong {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.hero__badges span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__svg {
  width: 100%;
  max-width: 480px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(30, 58, 95, 0.15));
}

/* ----- Section header (compartido) ---------------------------------- */

.services { padding: clamp(4rem, 8vw, 6rem) 0; }

.section-header {
  text-align: center;
  max-width: 44rem;
  margin: 0 auto 3rem;
}
.section-header__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}
.section-header__title {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.section-header__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* ----- Problemas (problem-agitation) -------------------------------- */

.problems {
  background:
    linear-gradient(180deg, #eff6ff 0%, #e0e7ef 100%);
  padding: clamp(4rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.problems__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.problem-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition), box-shadow var(--transition);
  /* Animación on-scroll */
  opacity: 0;
  transform: translateY(16px);
}
.problem-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 600ms ease, transform 600ms ease, box-shadow var(--transition);
}
.problem-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.problem-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(37, 99, 235, 0.12);
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.problem-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.problem-card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.problems__cta {
  text-align: center;
  margin-top: 2.5rem;
}
.problems__cta-note {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .problems__grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .problem-card { opacity: 1; transform: none; }
}

/* ----- Servicios — Grid de tarjetas --------------------------------- */

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  /* Animación on-scroll */
  opacity: 0;
  transform: translateY(16px);
}
.service-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 600ms ease, transform 600ms ease, box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.10), rgba(30, 58, 95, 0.10));
  color: var(--color-accent);
}

.service-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.service-card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.service-card__link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition);
  align-self: flex-start;
}
.service-card__link:hover { gap: 0.7rem; }

/* ----- FAQ ----------------------------------------------------------- */

.faq {
  padding: clamp(4rem, 8vw, 6rem) 0;
  background-color: var(--color-bg);
}

.faq__list {
  max-width: 820px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.faq-item__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background-color var(--transition);
}
.faq-item__q:hover { background-color: rgba(37, 99, 235, 0.04); }
.faq-item__q::-webkit-details-marker { display: none; }
.faq-item__q::marker { content: ""; }

.faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background-color: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.faq-item__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}
.faq-item__icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}
.faq-item[open] .faq-item__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq-item__a {
  padding: 0 1.5rem 1.35rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  border-top: 1px solid var(--color-border);
  margin-top: -1px;
}
.faq-item__a p { padding-top: 1.1rem; }
.faq-item__a strong { color: var(--color-text); font-weight: 600; }

/* Mejor focus en details */
.faq-item__q:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: -3px;
  border-radius: var(--radius-md);
}

/* ============================================================
   LANDINGS PROVINCIALES (Cobertura territorial)
   ============================================================ */

.cities-served {
  padding: clamp(3rem, 6vw, 5rem) 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}
.cities-served__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-top: 2rem;
  max-width: 720px;
  margin-inline: auto;
}
.cities-served__chip {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition), color var(--transition), background-color var(--transition);
}
.cities-served__chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.trust-signals {
  padding: clamp(3rem, 6vw, 4rem) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.trust-signals__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 920px;
  margin-inline: auto;
}
.trust-signals__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.trust-signals__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.10), rgba(30, 58, 95, 0.10));
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.trust-signals__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}
.trust-signals__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

@media (min-width: 768px) {
  .trust-signals__grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 2.5rem; }
}

/* ============================================================
   BLOG & ARTÍCULOS
   ============================================================ */

/* ----- Breadcrumbs --------------------------------------------------- */

.breadcrumbs {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 1.5rem 0 0.5rem;
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.breadcrumbs li::after {
  content: "/";
  margin-left: 0.4rem;
  color: var(--color-border-strong);
}
.breadcrumbs li:last-child::after { content: ""; }
.breadcrumbs a {
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs li[aria-current="page"] { color: var(--color-text); font-weight: 500; }

/* ----- Blog index (listado) ----------------------------------------- */

.blog-hero {
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(2rem, 4vw, 3rem);
  text-align: center;
  background:
    radial-gradient(900px 300px at 50% 0%, rgba(37, 99, 235, 0.08), transparent 65%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.blog-hero h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.blog-hero p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0 auto;
}

.blog-list {
  padding: clamp(3rem, 6vw, 5rem) 0;
}
.blog-list__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.post-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}
.post-card__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  align-self: flex-start;
}
.post-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.post-card__excerpt {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}
.post-card__meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 1rem;
  margin-top: 0.25rem;
}
.post-card__cta {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent);
  margin-top: 0.5rem;
}

@media (min-width: 768px) {
  .blog-list__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ----- Artículo (post completo) ------------------------------------- */

.article {
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 clamp(3rem, 6vw, 5rem);
}
.article__inner {
  max-width: 760px;
  margin-inline: auto;
}
.article__header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}
.article__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.85rem;
}
.article__title {
  font-size: clamp(1.9rem, 3.8vw, 2.7rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.article__lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 1.25rem;
}
.article__meta span { display: inline-flex; align-items: center; gap: 0.4rem; }

/* Tipografía del cuerpo del artículo */
.article__body { font-size: 1.05rem; line-height: 1.75; color: var(--color-text); }
.article__body > * + * { margin-top: 1.1em; }

.article__body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin-top: 2.5em;
  line-height: 1.25;
}
.article__body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 1.8em;
  line-height: 1.3;
}
.article__body p { color: var(--color-text); }
.article__body strong { font-weight: 600; color: var(--color-text); }
.article__body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.article__body a:hover { color: var(--color-accent-dark); }

.article__body ul,
.article__body ol {
  padding-left: 1.4rem;
  margin-top: 1em;
}
.article__body ul { list-style: disc; }
.article__body ol { list-style: decimal; }
.article__body li { margin-bottom: 0.5em; padding-left: 0.25rem; }
.article__body li::marker { color: var(--color-accent); }

.article__body blockquote {
  border-left: 4px solid var(--color-accent);
  background-color: rgba(37, 99, 235, 0.04);
  padding: 1rem 1.25rem;
  margin: 1.5em 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: normal;
  color: var(--color-text);
}

.article__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.article__body th,
.article__body td {
  padding: 0.8rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.article__body th {
  background-color: var(--color-bg);
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.9rem;
}
.article__body tr:last-child td { border-bottom: 0; }

/* Caja de aviso/destacado */
.callout {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(30, 58, 95, 0.04));
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.5em 0;
}
.callout strong { color: var(--color-primary); }

/* CTA al final del artículo */
.article__cta {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #2c4a72 100%);
  border-radius: var(--radius-lg);
  color: #fff;
  text-align: center;
}
.article__cta h3 {
  color: #fff;
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.article__cta p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}
.article__cta .btn--primary {
  background-color: #ffffff;
  color: var(--color-primary);
}
.article__cta .btn--primary:hover {
  background-color: #f8fafc;
  color: var(--color-primary-dark);
}

/* ============================================================
   FORMULARIO DE CONTACTO
   ============================================================ */

.contact {
  padding: clamp(4rem, 8vw, 6rem) 0;
  background: linear-gradient(180deg, #eff6ff 0%, #e0e7ef 100%);
  border-top: 1px solid var(--color-border);
}
.contact-form {
  max-width: 640px;
  margin-inline: auto;
  background-color: var(--color-surface);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.contact-form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin-bottom: 1.1rem;
}
@media (min-width: 640px) {
  .contact-form__row { grid-template-columns: 1fr 1fr; gap: 1.1rem; }
}
.contact-form__field { margin-bottom: 1.1rem; }
.contact-form__field label,
.contact-form__check label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-primary);
}
.contact-form__field label {
  display: block;
  margin-bottom: 0.4rem;
}
.contact-form__field label span,
.contact-form__check label span {
  color: var(--color-accent);
  font-weight: 600;
  margin-left: 0.15rem;
}
.contact-form__field input,
.contact-form__field select,
.contact-form__field textarea {
  width: 100%;
  padding: 0.75rem 0.95rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-form__field input:focus,
.contact-form__field select:focus,
.contact-form__field textarea:focus {
  outline: 0;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.contact-form__field textarea { resize: vertical; min-height: 130px; }
.contact-form__check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 0.75rem 0 1.5rem;
  font-size: 0.875rem;
}
.contact-form__check input {
  flex-shrink: 0;
  margin-top: 0.2rem;
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
}
.contact-form__check label {
  font-weight: 400;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.contact-form__submit {
  width: 100%;
  padding: 0.95rem;
  font-size: 1rem;
}
.contact-form__submit:disabled {
  opacity: 0.6;
  cursor: progress;
}
.contact-form__status {
  margin-top: 1.1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
  line-height: 1.5;
}
.contact-form__status--success {
  display: block;
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}
.contact-form__status--error {
  display: block;
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* ----- Footer -------------------------------------------------------- */

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 2rem;
  margin-top: 2rem;
}
.site-footer .brand { color: #ffffff; }
.site-footer .brand__mark { color: rgba(255, 255, 255, 0.15); }

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.site-footer__tagline {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 22rem;
}
.site-footer__contact p { margin-bottom: 0.4rem; font-size: 0.95rem; }
.site-footer__contact strong { color: #ffffff; }
.site-footer__contact a { color: rgba(255, 255, 255, 0.85); transition: color var(--transition); }
.site-footer__contact a:hover { color: #ffffff; text-decoration: underline; }

.site-footer__zones p { margin-bottom: 0.4rem; font-size: 0.95rem; color: rgba(255, 255, 255, 0.85); }
.site-footer__zones strong { color: #ffffff; }
.site-footer__zones a { color: rgba(255, 255, 255, 0.85); transition: color var(--transition); }
.site-footer__zones a:hover { color: #ffffff; text-decoration: underline; }

.site-footer__legal {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.5rem;
  grid-column: 1 / -1;
}

/* ----- Responsive ---------------------------------------------------- */

@media (min-width: 640px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__inner { grid-template-columns: 2fr 1fr; }
}

@media (min-width: 1024px) {
  .hero__inner { grid-template-columns: 1.1fr 1fr; gap: 4rem; }
  .services__grid { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
  .site-footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; align-items: start; }
  .site-footer__legal {
    grid-column: 1 / -1;
    text-align: center;
  }
}

/* ----- Menú móvil --------------------------------------------------- */

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.25rem 1.5rem;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility 0s linear var(--transition);
    box-shadow: var(--shadow-md);
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    transition: opacity var(--transition), transform var(--transition), visibility 0s;
  }

  .primary-nav__list {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }
  .primary-nav__list li { border-bottom: 1px solid var(--color-border); }
  .primary-nav__list li:last-child { border-bottom: 0; }
  .primary-nav__list a {
    display: block;
    padding: 0.9rem 0;
    font-size: 1rem;
    color: var(--color-text);
  }
  .primary-nav__list a::after { display: none; }

  .primary-nav__cta {
    margin-top: 1rem;
    width: 100%;
    text-align: center;
  }
}

/* ----- prefers-reduced-motion --------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .service-card { opacity: 1; transform: none; }
}