/* =============================================================
   Bit Informático – Stylesheet
   Arquitectura: Custom Properties → Reset → Base → Layout →
                 Componentes → Páginas → Utilidades → Media Queries
   ============================================================= */

/* ── 1. Custom Properties ───────────────────────────────────── */
:root {
  /* Colores */
  --clr-primary:     #2563EB;
  --clr-primary-dk:  #1D4ED8;
  --clr-secondary:   #7C3AED;
  --clr-accent:      #06B6D4;
  --clr-dark:        #0F172A;
  --clr-dark-2:      #1E293B;
  --clr-gray-600:    #475569;
  --clr-gray-400:    #94A3B8;
  --clr-gray-100:    #F1F5F9;
  --clr-white:       #FFFFFF;
  --clr-success:     #10B981;
  --clr-error:       #EF4444;
  --clr-warning:     #F59E0B;

  /* Gradientes */
  --grad-primary:    linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-secondary) 100%);
  --grad-dark:       linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  --grad-subtle:     linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 100%);

  /* Tipografía */
  --font-base:    system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono:    'Cascadia Code', 'Fira Code', 'Courier New', monospace;
  --fs-xs:        0.75rem;
  --fs-sm:        0.875rem;
  --fs-base:      1rem;
  --fs-lg:        1.125rem;
  --fs-xl:        1.25rem;
  --fs-2xl:       1.5rem;
  --fs-3xl:       1.875rem;
  --fs-4xl:       2.25rem;
  --fs-5xl:       3rem;
  --fs-6xl:       3.75rem;
  --lh-tight:     1.25;
  --lh-snug:      1.375;
  --lh-normal:    1.6;

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

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1rem, 5vw, 2rem);

  /* Bordes & Sombras */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px rgba(0,0,0,.1), 0 10px 10px rgba(0,0,0,.04);
  --shadow-glow: 0 0 40px rgba(37,99,235,.15);

  /* Transiciones */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:    150ms;
  --dur-base:    250ms;
  --dur-slow:    400ms;
}

/* ── 2. Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-base);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--clr-dark);
  background: var(--clr-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; }

/* ── 3. Skip Link ───────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: var(--sp-3) var(--sp-6);
  background: var(--clr-primary);
  color: var(--clr-white);
  z-index: 9999;
  border-radius: 0 0 var(--radius-md) 0;
  font-weight: 600;
  transition: top var(--dur-fast);
}
.skip-link:focus { top: 0; }

/* ── 4. Layout ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.section {
  padding-block: clamp(var(--sp-16), 8vw, var(--sp-24));
}
.section--alt { background: var(--clr-gray-100); }
.section--dark {
  background: var(--grad-dark);
  color: var(--clr-white);
}

/* ── 5. Tipografía ──────────────────────────────────────────── */
.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(37,99,235,.08);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}
.section__title {
  font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl));
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: -.02em;
  margin-bottom: var(--sp-4);
}
.section__title span { background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section__subtitle {
  font-size: var(--fs-lg);
  color: var(--clr-gray-600);
  max-width: 640px;
  margin-bottom: var(--sp-12);
}
.section__header { text-align: center; }
.section__header .section__subtitle { margin-inline: auto; }

/* ── 6. Botones ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--fs-base);
  transition: all var(--dur-base) var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.1);
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.btn:hover::after { opacity: 1; }
.btn:focus-visible { outline: 3px solid var(--clr-primary); outline-offset: 3px; }

.btn--primary {
  background: var(--grad-primary);
  color: var(--clr-white);
  box-shadow: 0 4px 15px rgba(37,99,235,.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(37,99,235,.45); }

.btn--outline {
  border: 2px solid var(--clr-primary);
  color: var(--clr-primary);
  background: transparent;
}
.btn--outline:hover { background: var(--clr-primary); color: var(--clr-white); }

.btn--white {
  background: var(--clr-white);
  color: var(--clr-primary);
  font-weight: 700;
}
.btn--white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn--ghost {
  color: var(--clr-white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn--ghost:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.8); }

.btn--lg { padding: var(--sp-4) var(--sp-8); font-size: var(--fs-lg); }
.btn--sm { padding: var(--sp-2) var(--sp-4); font-size: var(--fs-sm); }

/* ── 7. Header & Navegación ─────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding-block: var(--sp-4);
  transition: background var(--dur-base), box-shadow var(--dur-base), padding var(--dur-base);
}
.site-header.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  padding-block: var(--sp-3);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-weight: 800;
  font-size: var(--fs-xl);
  color: var(--clr-dark);
  flex-shrink: 0;
}
.logo__text { line-height: 1; }
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.nav__link {
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-dark);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.nav__link:hover { color: var(--clr-primary); background: rgba(37,99,235,.06); }
.nav__link--cta {
  background: var(--grad-primary);
  color: var(--clr-white) !important;
  font-weight: 600;
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(37,99,235,.3);
}
.nav__link--cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(37,99,235,.4); }
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--sp-2);
  border-radius: var(--radius-md);
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--clr-dark);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 8. Hero ────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
  background: var(--clr-dark);
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
}
.hero__orb--1 {
  width: 600px; height: 600px;
  top: -100px; right: -100px;
  background: radial-gradient(circle, var(--clr-primary), transparent 70%);
}
.hero__orb--2 {
  width: 400px; height: 400px;
  bottom: -50px; left: -50px;
  background: radial-gradient(circle, var(--clr-secondary), transparent 70%);
}
.hero__grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.8);
  margin-bottom: var(--sp-6);
  backdrop-filter: blur(8px);
}
.hero__badge-dot {
  width: 8px; height: 8px;
  background: var(--clr-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,.4); }
  50%       { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}
.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.03em;
  color: var(--clr-white);
  margin-bottom: var(--sp-6);
}
.hero__title .gradient-text {
  background: linear-gradient(90deg, #60A5FA, #A78BFA, #34D399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__desc {
  font-size: clamp(var(--fs-base), 2vw, var(--fs-xl));
  color: rgba(255,255,255,.65);
  line-height: var(--lh-normal);
  margin-bottom: var(--sp-10);
  max-width: 540px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  align-items: center;
}
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-8);
  margin-top: var(--sp-16);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero__stat-num {
  display: block;
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1;
}
.hero__stat-label {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.5);
  margin-top: var(--sp-1);
}

/* ── 9. Cards ───────────────────────────────────────────────── */
.card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,.06);
  padding: var(--sp-8);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.card__icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.75rem;
  margin-bottom: var(--sp-5);
  background: var(--grad-subtle);
}
.card__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--sp-3);
  color: var(--clr-dark);
}
.card__desc {
  font-size: var(--fs-sm);
  color: var(--clr-gray-600);
  line-height: var(--lh-normal);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-primary);
  transition: gap var(--dur-fast);
}
.card__link:hover { gap: var(--sp-3); }
.card__link svg { transition: transform var(--dur-fast); }
.card__link:hover svg { transform: translateX(3px); }

/* ── 10. Grid ───────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--sp-6); }

/* ── 11. Servicios (Home preview) ───────────────────────────── */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-6); }

/* ── 12. Proceso ────────────────────────────────────────────── */
.process__steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-6);
  position: relative;
}
.process__step {
  text-align: center;
  padding: var(--sp-8) var(--sp-6);
}
.process__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: var(--clr-white);
  font-weight: 800;
  font-size: var(--fs-xl);
  margin: 0 auto var(--sp-5);
  box-shadow: 0 4px 15px rgba(37,99,235,.35);
}
.process__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--sp-2); }
.process__desc  { font-size: var(--fs-sm); color: var(--clr-gray-600); }

/* ── 13. Testimonios ────────────────────────────────────────── */
.testimonials__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-6); }
.testimonial {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  border: 1px solid rgba(0,0,0,.06);
  position: relative;
  box-shadow: var(--shadow-sm);
}
.testimonial__stars {
  color: var(--clr-warning);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: var(--sp-4);
}
.testimonial__text {
  font-size: var(--fs-base);
  color: var(--clr-dark);
  line-height: var(--lh-normal);
  margin-bottom: var(--sp-6);
  font-style: italic;
}
.testimonial__text::before { content: '"'; }
.testimonial__text::after  { content: '"'; }
.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.testimonial__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-white);
  font-weight: 700;
  font-size: var(--fs-lg);
  flex-shrink: 0;
}
.testimonial__name { font-weight: 700; font-size: var(--fs-sm); }
.testimonial__role { font-size: var(--fs-xs); color: var(--clr-gray-400); }

/* ── 14. Tecnologías ────────────────────────────────────────── */
.tech-strip {
  overflow: hidden;
  padding-block: var(--sp-6);
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.tech-strip__track {
  display: flex;
  gap: var(--sp-6);
  animation: scroll-x 30s linear infinite;
  width: max-content;
}
.tech-strip:hover .tech-strip__track { animation-play-state: paused; }
@keyframes scroll-x { to { transform: translateX(-50%); } }
.tech-tag {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: var(--clr-white);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-gray-600);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

/* ── 15. CTA Banner ─────────────────────────────────────────── */
.cta-banner {
  background: var(--grad-primary);
  border-radius: var(--radius-xl);
  padding: clamp(var(--sp-10), 6vw, var(--sp-16));
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-banner * { position: relative; z-index: 1; }
.cta-banner__title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: 800;
  color: var(--clr-white);
  margin-bottom: var(--sp-4);
}
.cta-banner__desc {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,.8);
  margin-bottom: var(--sp-8);
}
.cta-banner__actions { display: flex; gap: var(--sp-4); justify-content: center; flex-wrap: wrap; }

/* ── 16. Precios ────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-6);
  align-items: start;
}
.pricing-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  border: 2px solid rgba(0,0,0,.06);
  padding: var(--sp-10);
  position: relative;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.pricing-card--featured {
  border-color: var(--clr-primary);
  background: var(--grad-subtle);
  box-shadow: var(--shadow-glow);
}
.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-primary);
  color: var(--clr-white);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: var(--sp-1) var(--sp-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.pricing-name {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-gray-600);
  margin-bottom: var(--sp-3);
}
.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--sp-1);
  margin-bottom: var(--sp-2);
}
.pricing-price__amount {
  font-size: clamp(var(--fs-4xl), 4vw, var(--fs-5xl));
  font-weight: 900;
  line-height: 1;
  color: var(--clr-dark);
}
.pricing-price__currency { font-size: var(--fs-xl); font-weight: 700; color: var(--clr-gray-600); }
.pricing-price__period   { font-size: var(--fs-sm);  color: var(--clr-gray-400); }
.pricing-desc {
  font-size: var(--fs-sm);
  color: var(--clr-gray-600);
  margin-bottom: var(--sp-8);
  min-height: 2.5rem;
}
.pricing-divider { border: none; border-top: 1px solid rgba(0,0,0,.08); margin-bottom: var(--sp-6); }
.pricing-features { margin-bottom: var(--sp-8); }
.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding-block: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--clr-dark);
}
.pricing-feature svg { flex-shrink: 0; color: var(--clr-success); margin-top: 1px; }
.pricing-feature--no svg { color: var(--clr-gray-400); }
.pricing-feature--no span { color: var(--clr-gray-400); }

/* ── 17. Zonas ──────────────────────────────────────────────── */
.zones-map {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-5);
}
.zone-card {
  padding: var(--sp-6);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,.07);
  background: var(--clr-white);
  transition: all var(--dur-base) var(--ease-out);
}
.zone-card:hover { border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(37,99,235,.08); transform: translateY(-2px); }
.zone-card__flag { font-size: 2rem; margin-bottom: var(--sp-3); }
.zone-card__name { font-weight: 700; font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.zone-card__desc { font-size: var(--fs-sm); color: var(--clr-gray-600); }
.zone-card--featured { border-color: var(--clr-primary); background: var(--grad-subtle); }

/* ── 18. Formulario ─────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: var(--sp-5); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); }
.form-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-dark);
}
.form-label span { color: var(--clr-error); }
.form-control {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 2px solid rgba(0,0,0,.1);
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  color: var(--clr-dark);
  background: var(--clr-white);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
  outline: none;
}
.form-control:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,.1);
}
.form-control:invalid:not(:placeholder-shown) { border-color: var(--clr-error); }
.form-control::placeholder { color: var(--clr-gray-400); }
textarea.form-control { resize: vertical; min-height: 130px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right var(--sp-4) center; padding-right: var(--sp-10); }
.form-check { display: flex; align-items: flex-start; gap: var(--sp-3); }
.form-check input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--clr-primary); cursor: pointer; flex-shrink: 0; }
.form-check label { font-size: var(--fs-sm); color: var(--clr-gray-600); cursor: pointer; }
.form-check a { color: var(--clr-primary); font-weight: 600; }
.form-hint { font-size: var(--fs-xs); color: var(--clr-gray-400); }
.form-success {
  display: none;
  padding: var(--sp-4) var(--sp-5);
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  border-radius: var(--radius-md);
  color: #065F46;
  font-weight: 600;
  font-size: var(--fs-sm);
}
.form-error-msg {
  display: none;
  padding: var(--sp-4) var(--sp-5);
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  border-radius: var(--radius-md);
  color: #991B1B;
  font-weight: 600;
  font-size: var(--fs-sm);
}

/* ── 19. Contacto page ──────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--sp-10);
  align-items: start;
}
.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.contact-info__icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  background: var(--grad-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
}
.contact-info__label { font-size: var(--fs-xs); color: var(--clr-gray-400); text-transform: uppercase; letter-spacing: .08em; margin-bottom: var(--sp-1); }
.contact-info__value { font-weight: 600; color: var(--clr-dark); }
.contact-info__value a { color: var(--clr-primary); }
.contact-info__value a:hover { text-decoration: underline; }
.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.08);
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
}
.map-wrapper iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ── 20. FAQ ────────────────────────────────────────────────── */
.faq { display: flex; flex-direction: column; gap: var(--sp-3); max-width: 760px; margin-inline: auto; }
.faq__item {
  border: 1px solid rgba(0,0,0,.08);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  font-size: var(--fs-base);
  font-weight: 600;
  text-align: left;
  color: var(--clr-dark);
  background: var(--clr-white);
  transition: background var(--dur-fast);
}
.faq__question:hover { background: var(--clr-gray-100); }
.faq__icon { flex-shrink: 0; transition: transform var(--dur-base) var(--ease-out); }
.faq__item.open .faq__icon { transform: rotate(45deg); }
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}
.faq__item.open .faq__answer { max-height: 400px; }
.faq__answer-inner {
  padding: 0 var(--sp-6) var(--sp-5);
  font-size: var(--fs-sm);
  color: var(--clr-gray-600);
  line-height: var(--lh-normal);
}

/* ── 21. WhatsApp flotante ──────────────────────────────────── */
.whatsapp-btn {
  position: fixed;
  bottom: var(--sp-8);
  right: var(--sp-8);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(37,211,102,.5);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
  animation: wa-appear .6s var(--ease-out) .5s both;
}
@keyframes wa-appear {
  from { transform: scale(0) rotate(-90deg); opacity: 0; }
  to   { transform: scale(1) rotate(0); opacity: 1; }
}
.whatsapp-btn:hover {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 8px 30px rgba(37,211,102,.65);
}
.whatsapp-btn__tooltip {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--clr-dark);
  color: var(--clr-white);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  font-size: var(--fs-xs);
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.whatsapp-btn__tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--clr-dark);
}
.whatsapp-btn:hover .whatsapp-btn__tooltip { opacity: 1; }

/* ── 22. Footer ─────────────────────────────────────────────── */
.site-footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,.8);
  padding-top: var(--sp-16);
  padding-bottom: var(--sp-8);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--sp-10);
  margin-bottom: var(--sp-12);
}
.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-weight: 800;
  font-size: var(--fs-xl);
  color: var(--clr-white);
  margin-bottom: var(--sp-4);
}
.footer__tagline { font-size: var(--fs-sm); color: rgba(255,255,255,.5); margin-bottom: var(--sp-5); max-width: 260px; }
.footer__social { display: flex; gap: var(--sp-3); }
.footer__social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.6);
  transition: all var(--dur-fast);
}
.footer__social a:hover { background: var(--clr-primary); color: var(--clr-white); }
.footer__heading {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-white);
  margin-bottom: var(--sp-5);
}
.footer__links li + li { margin-top: var(--sp-3); }
.footer__links a { font-size: var(--fs-sm); color: rgba(255,255,255,.5); transition: color var(--dur-fast); }
.footer__links a:hover { color: var(--clr-white); }
.footer__contact p {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.6);
  margin-bottom: var(--sp-3);
  line-height: 1.5;
}
.footer__contact svg { flex-shrink: 0; margin-top: 2px; opacity: .5; }
.footer__contact a { color: rgba(255,255,255,.8); }
.footer__contact a:hover { color: var(--clr-white); text-decoration: underline; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.4);
}
.footer__bottom nav { display: flex; gap: var(--sp-5); }
.footer__bottom a { color: rgba(255,255,255,.4); transition: color var(--dur-fast); }
.footer__bottom a:hover { color: rgba(255,255,255,.8); }

/* ── 23. Page Hero (páginas interiores) ─────────────────────── */
.page-hero {
  background: var(--clr-dark);
  padding-top: calc(5rem + var(--sp-12));
  padding-bottom: var(--sp-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 50px 50px;
}
.page-hero__content { position: relative; z-index: 1; }
.page-hero__title {
  font-size: clamp(var(--fs-3xl), 5vw, var(--fs-5xl));
  font-weight: 900;
  color: var(--clr-white);
  margin-bottom: var(--sp-4);
  letter-spacing: -.025em;
}
.page-hero__desc {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,.6);
  max-width: 600px;
  margin-inline: auto;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.4);
  margin-bottom: var(--sp-4);
}
.breadcrumb a { color: rgba(255,255,255,.4); }
.breadcrumb a:hover { color: rgba(255,255,255,.8); }
.breadcrumb__sep { opacity: .4; }

/* ── 24. Utilities ──────────────────────────────────────────── */
.text-center  { text-align: center; }
.text-gradient { background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.mt-auto { margin-top: auto; }
.mb-0    { margin-bottom: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }

/* Fade-in on scroll */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
[data-animate].visible { opacity: 1; transform: translateY(0); }

/* ── 25. Media Queries ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__col--brand { grid-column: 1 / -1; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--clr-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--sp-6);
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    z-index: 999;
    pointer-events: none;
  }
  .nav__menu.open {
    transform: translateX(0);
    pointer-events: all;
  }
  .nav__link { font-size: var(--fs-2xl); padding: var(--sp-3) var(--sp-6); }
  .nav__link--cta { margin-top: var(--sp-4); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer__bottom { flex-direction: column; text-align: center; }
  .pricing-grid { grid-template-columns: 1fr; }
  .whatsapp-btn { bottom: var(--sp-6); right: var(--sp-6); }
}

@media (max-width: 480px) {
  .hero__stats { gap: var(--sp-6); }
  .hero__actions { flex-direction: column; width: 100%; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .cta-banner__actions { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .tech-strip__track { animation: none; }
}

@media print {
  .site-header, .site-footer, .whatsapp-btn { display: none; }
  .hero { min-height: auto; padding-top: 0; }
}