/* =========================================================
   INNPULSO S.A.S. — Web corporativa
   Estilo cálido + acento verde-teal del logo (sustituye ámbar)
   ========================================================= */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  /* Marca — teal-slate del logo */
  --color-navy-900: #1E3438;
  --color-navy-800: #2F4A52;
  --color-navy-700: #3F5F68;
  --color-navy-600: #557682;
  --color-steel-500: #4A5C63;
  --color-steel-300: #93A8AE;
  --color-steel-200: #C5D2D6;
  --color-steel-100: #E0E7E9;
  --color-bg: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-text: #0F172A;
  --color-text-muted: #475569;

  /* Acento verde del logo — más vivo que el teal base (como el ámbar anterior) */
  --color-accent-400: #5ECDB5;
  --color-accent-500: #3AAF96;
  --color-accent-600: #2E947F;

  --color-accent-rgb: 58, 175, 150;

  /* Feedback */
  --color-success: #10B981;
  --color-error: #EF4444;

  /* Tipografía */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Montserrat', var(--font-sans);

  /* Escala fluida (clamp): mobile -> desktop */
  --fs-xs:   clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --fs-sm:   clamp(0.875rem, 0.83rem + 0.2vw, 0.9375rem);
  --fs-base: clamp(1rem, 0.96rem + 0.25vw, 1.0625rem);
  --fs-lg:   clamp(1.125rem, 1.05rem + 0.4vw, 1.25rem);
  --fs-xl:   clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-2xl:  clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --fs-3xl:  clamp(1.875rem, 1.5rem + 1.8vw, 2.75rem);
  --fs-4xl:  clamp(2.25rem, 1.7rem + 2.8vw, 3.75rem);
  --fs-hero: clamp(2.5rem, 1.8rem + 3.5vw, 4.5rem);

  /* Espaciado (8px grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1240px;
  --container-px: clamp(1rem, 3vw, 2rem);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.18);
  --shadow-cta: 0 8px 20px -6px rgba(var(--color-accent-rgb), 0.5);

  /* Animaciones */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-slow: 500ms var(--ease-out);

  /* Header */
  --header-h: 72px;
}

/* ---------- 2. RESET MÍNIMO ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}
button { font: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
input, textarea, select { font: inherit; }

/* Accesibilidad: skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-navy-900);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

/* Foco visible */
:focus-visible {
  outline: 3px solid var(--color-accent-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 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;
  }
}

/* ---------- 3. TIPOGRAFÍA ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-navy-900);
}
h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
p  { color: var(--color-text-muted); max-width: 65ch; }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--color-accent-600);
  margin-bottom: var(--space-3);
}
.section-title {
  margin-bottom: var(--space-4);
}
.section-subtitle {
  font-size: var(--fs-lg);
  max-width: 60ch;
  margin-bottom: var(--space-12);
}

/* ---------- 4. LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  padding-inline: var(--container-px);
  margin-inline: auto;
}
section {
  padding-block: clamp(3rem, 7vw, 6rem);
}
.section--dark {
  background: var(--color-navy-900);
  color: #E5E7EB;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: #CBD5E1; }
.section--dark .eyebrow { color: var(--color-accent-400); }

.section--alt {
  background: linear-gradient(180deg, #F4F6FA 0%, #FAFAFA 100%);
}

/* ---------- 5. BOTONES (CTAs neuromarketing) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-weight: 600;
  font-size: var(--fs-base);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  white-space: nowrap;
  text-align: center;
  min-height: 48px; /* touch target */
}
.btn--primary {
  background: linear-gradient(135deg, var(--color-accent-500), var(--color-accent-600));
  color: #fff;
  box-shadow: var(--shadow-cta);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -6px rgba(var(--color-accent-rgb), 0.65);
}
.btn--primary:active { transform: translateY(0); }
.btn--secondary {
  background: transparent;
  color: var(--color-navy-900);
  border: 2px solid var(--color-navy-900);
}
.btn--secondary:hover {
  background: var(--color-navy-900);
  color: #fff;
}
.btn--ghost-light {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}
.btn--ghost-light:hover { background: rgba(255,255,255,0.18); }

.btn--whatsapp {
  background: #25D366;
  color: #fff;
}
.btn--whatsapp:hover { background: #20BD5B; transform: translateY(-2px); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* WhatsApp flotante */
.whatsapp-float {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 24px -6px rgba(37, 211, 102, 0.6);
  z-index: 90;
  transition: transform var(--transition-base);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; }

/* ---------- 6. HEADER ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  z-index: 100;
  transition: box-shadow var(--transition-base);
}
.site-header.is-scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-navy-900);
}
.logo img {
  height: 44px;
  width: auto;
  display: block;
}
.logo--footer img {
  filter: brightness(0) invert(1);
  opacity: 0.95;
  height: 40px;
}

/* Language switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.25rem;
  background: rgba(47, 74, 82, 0.08);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 600;
}
.lang-switcher a {
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
  letter-spacing: 0.05em;
}
.lang-switcher a:hover { color: var(--color-navy-900); }
.lang-switcher a.is-active {
  background: var(--color-navy-900);
  color: #fff;
}
.lang-switcher--dark {
  background: rgba(255,255,255,0.1);
}
.lang-switcher--dark a { color: rgba(255,255,255,0.7); }
.lang-switcher--dark a:hover { color: #fff; }
.lang-switcher--dark a.is-active { background: var(--color-accent-500); color: #fff; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav {
  display: none;
}
.nav-list {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}
.nav-list a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-navy-800);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--color-accent-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.nav-list a:hover { color: var(--color-accent-600); }
.nav-list a:hover::after,
.nav-list a.is-active::after { transform: scaleX(1); }

.header-cta { display: none; }

/* Toggle móvil */
.nav-toggle {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy-900);
  position: relative;
  transition: transform var(--transition-base);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-navy-900);
  transition: transform var(--transition-base), top var(--transition-base);
}
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

/* Drawer móvil */
.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  padding: var(--space-8) var(--container-px);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: 99;
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: var(--space-4); }
.mobile-nav a {
  display: block;
  padding: var(--space-3) 0;
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--color-navy-900);
  border-bottom: 1px solid var(--color-steel-100);
}
.mobile-nav .btn {
  margin-top: var(--space-6);
  width: 100%;
}
body.nav-open { overflow: hidden; }

/* ---------- 7. HERO ---------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + 3rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
  background: linear-gradient(135deg, #0A1F3D 0%, #102A52 60%, #1A3A6E 100%);
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(var(--color-accent-rgb), 0.22), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(26, 58, 110, 0.55), transparent 50%);
  pointer-events: none;
}
.hero::after {
  /* Patrón de líneas tenue, evoca planos estructurales */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
  align-items: center;
}
.hero h1 {
  color: #fff;
  margin-bottom: var(--space-5);
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--color-accent-400), var(--color-accent-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: var(--fs-lg);
  color: #CBD5E1;
  margin-bottom: var(--space-8);
  max-width: 56ch;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(var(--color-accent-rgb), 0.14);
  border: 1px solid rgba(var(--color-accent-rgb), 0.35);
  color: var(--color-accent-400);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
  text-transform: uppercase;
}
.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-400);
  box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.6); }
  70% { box-shadow: 0 0 0 12px rgba(var(--color-accent-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0); }
}

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.18), rgba(26, 58, 110, 0.4)),
    linear-gradient(135deg, #102A52, #1A3A6E);
  box-shadow: var(--shadow-lg);
  display: grid;
  place-items: center;
  color: rgba(255,255,255,0.5);
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-visual::after {
  content: "Imagen Proyecto Insignia";
  padding: 1rem;
  text-align: center;
}

/* Trust strip */
.trust-strip {
  position: relative;
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  z-index: 2;
}
.trust-strip .item {
  text-align: left;
}
.trust-strip .num {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--color-accent-400);
  display: block;
  line-height: 1;
}
.trust-strip .label {
  font-size: var(--fs-xs);
  color: #CBD5E1;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

/* ---------- 8. SERVICIOS ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-steel-100);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-500), var(--color-navy-700));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-500);
}
.service-card > * { position: relative; z-index: 1; }
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-navy-800), var(--color-navy-600));
  color: #fff;
  display: grid;
  place-items: center;
  margin-bottom: var(--space-5);
  transition: background var(--transition-base);
}
.service-icon svg { width: 28px; height: 28px; }
.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-accent-500), var(--color-accent-600));
}
.service-card h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-3);
}
.service-card p { font-size: var(--fs-sm); }

/* ---------- 9. METODOLOGÍA ---------- */
.method-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  counter-reset: step;
}
.method-step {
  position: relative;
  padding-left: 4.5rem;
}
.method-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: -0.25rem;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent-500);
  line-height: 1;
}
.method-step h3 {
  color: #fff;
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}
.method-step p { color: #94A3B8; }

/* ---------- 10. PROYECTOS (cards) ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.project-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.project-thumb {
  aspect-ratio: 16 / 11;
  background:
    linear-gradient(135deg, rgba(10, 31, 61, 0.5), rgba(26, 58, 110, 0.3)),
    linear-gradient(135deg, #1A3A6E, #0A1F3D);
  display: grid;
  place-items: center;
  color: rgba(255,255,255,0.6);
  font-size: var(--fs-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  position: relative;
}
.project-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10, 31, 61, 0.6) 0%, transparent 50%);
}
.project-meta {
  position: absolute;
  bottom: var(--space-3);
  left: var(--space-4);
  color: #fff;
  z-index: 2;
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.project-body {
  padding: var(--space-6);
}
.project-body h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}
.project-body p { font-size: var(--fs-sm); }
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: var(--space-4);
}
.project-tags span {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--color-steel-100);
  color: var(--color-navy-800);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- 11. TESTIMONIOS ---------- */
.testimonials {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.testimonial {
  background: var(--color-surface);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent-500);
  position: relative;
}
.testimonial::before {
  content: "\201C";
  position: absolute;
  top: -1rem;
  left: 1rem;
  font-family: var(--font-display);
  font-size: 5rem;
  color: var(--color-accent-500);
  opacity: 0.25;
  line-height: 1;
}
.testimonial blockquote {
  font-size: var(--fs-lg);
  color: var(--color-text);
  line-height: 1.55;
  margin-bottom: var(--space-5);
}
.testimonial cite {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-style: normal;
}
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-navy-700), var(--color-navy-900));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}
.testimonial-name {
  font-weight: 600;
  color: var(--color-navy-900);
  display: block;
}
.testimonial-role {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* ---------- 12. CTA FINAL ---------- */
.cta-block {
  background: linear-gradient(135deg, var(--color-navy-900), var(--color-navy-700));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(var(--color-accent-rgb), 0.28), transparent 50%);
}
.cta-block > * { position: relative; }
.cta-block h2 { color: #fff; margin-bottom: var(--space-4); }
.cta-block p { color: #CBD5E1; margin: 0 auto var(--space-8); max-width: 50ch; }
.cta-block .btn-row { justify-content: center; }

/* ---------- 13. FORMULARIO CONTACTO ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}
.contact-info-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-steel-100);
}
.contact-info-card h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-5);
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.contact-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.contact-list .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-navy-900);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-list .icon svg { width: 20px; height: 20px; }
.contact-list strong {
  display: block;
  color: var(--color-navy-900);
  font-size: var(--fs-sm);
  margin-bottom: 0.15rem;
}
.contact-list a, .contact-list span {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  word-break: break-word;
}
.contact-list a:hover { color: var(--color-accent-600); }

.regions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.region {
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-steel-100);
}
.region .flag {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.25rem;
}
.region strong {
  display: block;
  font-size: var(--fs-sm);
  color: var(--color-navy-900);
}
.region span {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* Formulario */
.form {
  background: var(--color-surface);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-steel-100);
}
.form h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}
.form > p {
  margin-bottom: var(--space-6);
  font-size: var(--fs-sm);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-navy-900);
}
.form-field label .req { color: var(--color-error); }
.form-field input,
.form-field textarea,
.form-field select {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-steel-200);
  background: #fff;
  color: var(--color-text);
  font-size: var(--fs-base);
  min-height: 48px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}
.form-field textarea {
  resize: vertical;
  min-height: 130px;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--color-accent-500);
  box-shadow: 0 0 0 4px rgba(var(--color-accent-rgb), 0.18);
  outline: none;
}
.form-field .error-msg {
  font-size: var(--fs-xs);
  color: var(--color-error);
  display: none;
}
.form-field[data-error="true"] input,
.form-field[data-error="true"] textarea,
.form-field[data-error="true"] select { border-color: var(--color-error); }
.form-field[data-error="true"] .error-msg { display: block; }

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.form-consent input { margin-top: 4px; min-height: 0; }

.form-status {
  display: none;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  margin-top: var(--space-4);
}
.form-status.is-success { display: block; background: rgba(16,185,129,0.1); color: #065F46; border: 1px solid #6EE7B7; }
.form-status.is-error   { display: block; background: rgba(239,68,68,0.1); color: #991B1B; border: 1px solid #FCA5A5; }

/* ---------- 14. FOOTER ---------- */
.site-footer {
  background: var(--color-navy-900);
  color: #CBD5E1;
  padding-block: var(--space-16) var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
.footer-col h4 {
  color: #fff;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-5);
}
.footer-col ul li { margin-bottom: var(--space-2); }
.footer-col a {
  color: #CBD5E1;
  font-size: var(--fs-sm);
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--color-accent-400); }
.footer-brand p {
  color: #94A3B8;
  font-size: var(--fs-sm);
  margin-top: var(--space-3);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--fs-xs);
  color: #64748B;
}
.footer-bottom a { color: #94A3B8; }
.footer-socials {
  display: flex;
  gap: var(--space-3);
}
.footer-socials a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: grid;
  place-items: center;
  transition: background var(--transition-base);
}
.footer-socials a:hover { background: var(--color-accent-500); }
.footer-socials svg { width: 18px; height: 18px; }

/* ---------- 15. ANIMACIONES (reveal on scroll) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 100ms; }
.reveal[data-delay="2"] { transition-delay: 200ms; }
.reveal[data-delay="3"] { transition-delay: 300ms; }
.reveal[data-delay="4"] { transition-delay: 400ms; }

/* ---------- 16. RESPONSIVE BREAKPOINTS ---------- */
/* Tablet (640+) */
@media (min-width: 640px) {
  .trust-strip { grid-template-columns: repeat(4, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials  { grid-template-columns: repeat(2, 1fr); }
}

/* Small desktop (900+) */
@media (min-width: 900px) {
  .nav { display: block; }
  .header-cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
  .lang-switcher--mobile-only { display: none; }

  .hero-inner { grid-template-columns: 1.1fr 1fr; gap: var(--space-16); }
  .method-grid { grid-template-columns: repeat(2, 1fr); column-gap: var(--space-12); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .contact-grid { grid-template-columns: 1fr 1.2fr; align-items: start; }
}

/* Desktop (1100+) */
@media (min-width: 1100px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonials  { grid-template-columns: repeat(3, 1fr); }
  .method-grid   { grid-template-columns: repeat(4, 1fr); }
}

/* Print styles */
@media print {
  .site-header, .mobile-nav, .whatsapp-float, .site-footer .footer-socials { display: none; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
}