:root {
  --primary: #00b2e2;
  --primary-dark: #002b49;
  --text: #0f172a;
  --muted: #63656a;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --ring: rgba(0, 178, 226, 0.25);
  --radius: 16px;
  --shadow: 0 10px 25px rgba(2, 44, 71, 0.12);
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

/* Containers */
.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid #e6ecf3;
}
.nav {
  position: relative;
  display: flex; /* ✅ agregado */
  align-items: center; /* ✅ agregado */
  gap: 20px; /* ✅ agregado */
  padding: 14px 0; /* ✅ agregado */
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-dark);
  font-weight: 700;
  text-decoration: none;
}
.logo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
}
.nav-links {
  display: flex;
  gap: 18px;
  margin-left: auto;
  align-items: center;
}
.nav-links a {
  color: #334155;
  text-decoration: none;
  font-weight: 600;
}
.nav-cta {
  display: flex;
  gap: 10px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
}
/* Alternar íconos del botón (hamburguesa/cerrar) ✅ agregado */
.nav-toggle .icon-close[hidden],
.nav-toggle .icon-menu[hidden] {
  display: none;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 6px 16px var(--ring);
  transition: transform 0.05s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px var(--ring);
}
.btn.ghost {
  background: transparent;
  color: var(--primary-dark);
  border-color: #d8e7ef;
}

/* Hero */
.hero {
  padding: 72px 0 32px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(28px, 2.6vw, 44px);
  line-height: 1.15;
  margin: 0 0 12px;
}
.hero-copy .lead {
  font-size: 18px;
  color: #334155;
  margin: 0 0 18px;
}
.hero-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.trust {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  margin-top: 14px;
}
.trust-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}
.cite {
  font-style: italic;
  opacity: 0.85;
}
.hero-media img {
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: var(--shadow);
}

/* Sections */
.section {
  padding: 64px 0;
}
.section.alt {
  background: var(--bg-alt);
}
.section-head {
  max-width: 760px;
  margin: 0 auto 28px;
  text-align: center;
}
.section-head h2 {
  font-size: clamp(22px, 2vw, 34px);
  margin: 0 0 6px;
}
.section-head p {
  color: #475569;
  margin: 0;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 24px;
}
.card {
  background: #fff;
  border: 1px solid #e9eef5;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
}
.card .icon {
  font-size: 22px;
}
.card h3 {
  margin: 8px 0 6px;
  font-size: 18px;
}
.card p {
  color: #475569;
  margin: 0;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.step {
  background: #fff;
  border: 1px solid #e9eef5;
  border-radius: var(--radius);
  padding: 16px;
}
.step img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.step h3 {
  margin: 12px 0 6px;
  font-size: 18px;
}
.step p {
  margin: 0;
  color: #475569;
}

/* Solutions */
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 12px;
}
.solution {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 18px;
  align-items: center;
  background: #fff;
  border: 1px solid #e9eef5;
  border-radius: var(--radius);
  padding: 16px;
}
.solution img {
  width: 100%;
  height: auto;
  border-radius: 12px;
}
.checklist {
  margin: 8px 0 10px;
  padding: 0 0 0 18px;
  color: #334155;
}
.link {
  font-weight: 700;
  color: var(--primary-dark);
  text-decoration: none;
}

/* Testimonials */
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 12px;
}
.testimonial {
  background: #fff;
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
}
.testimonial blockquote {
  margin: 0 0 8px;
  font-weight: 600;
}
.footnote {
  margin-top: 8px;
  color: #6b7280;
  font-size: 13px;
  text-align: center;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--primary-dark), #01486f);
  color: #fff;
  padding: 64px 0;
}
.cta-box {
  display: grid;
  gap: 14px;
  text-align: center;
}
.cta-form {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  padding: 12px;
  border-radius: 999px;
}
.cta-form input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  outline: none;
}
.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.8);
}
.cta .btn {
  background: #00b2e2;
}

/* Footer */
.site-footer {
  background: #0b2234;
  color: #dbe7ef;
  padding: 40px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 18px;
}
.site-footer h3,
.site-footer h4 {
  margin: 6px 0 10px;
}
.list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.list a {
  color: #dbe7ef;
  text-decoration: none;
}
.small {
  font-size: 13px;
  color: #a9bac6;
}

/* Accessibility helpers */
.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
/* Focus visible accesible ✅ agregado */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: 8px;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .solution {
    grid-template-columns: 1fr;
  }
  .testimonials {
    grid-template-columns: 1fr;
  }
  .cta-form {
    grid-template-columns: 1fr;
    border-radius: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }

  /* Menú off-canvas en móvil ✅ */
  .nav-links {
    position: fixed;
    top: 64px; /* altura aproximada del header */
    left: 0;
    right: 0;
    display: block; /* visibilidad con transform/opacity */
    padding: 16px;
    background: #ffffff;
    border-top: 1px solid #e6ecf3;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.22s ease, opacity 0.22s ease;
    z-index: 45;
  }
  .nav-links a {
    display: block;
    padding: 10px 6px;
  }
  .nav-cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
  }
  .nav-toggle {
    display: block;
    margin-left: auto;
    color: #1f2937;
  }
  /* Estado abierto */
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* Backdrop para cerrar tocando fuera */
  .nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(2, 44, 71, 0.28);
    backdrop-filter: blur(2px);
    z-index: 40;
  }
  .nav-backdrop.is-visible {
    display: block;
  }

  /* Bloqueo de scroll cuando el menú está abierto ✅ */
  body.nav-lock {
    overflow: hidden;
  }
}

/* Botones flotantes */
.float-btn {
  position: fixed;
  bottom: 22px;
  z-index: 9999;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

/* WhatsApp (lado izquierdo) */
.float-btn.whatsapp {
  left: 18px;
  background-color: #25d366;
}

/* Teléfono (lado derecho) */
.float-btn.phone {
  right: 18px;
  background-color: var(--primary-dark);
}

/* Hover / efecto */
.float-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

/* Ajuste en móviles */
@media (max-width: 600px) {
  .float-btn {
    width: 46px;
    height: 46px;
    font-size: 22px;
  }
  .float-btn.whatsapp {
    left: 12px;
  }
  .float-btn.phone {
    right: 12px;
  }
}