/* Base reset */
body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  /* Fondo azul metalizado: degradado de azules oscuros para un efecto metálico */
  background: linear-gradient(135deg, #062f5b, #114c8a);
  color: #e9e9e9;
}

/* Hero section */
.hero {
  /* Usamos un degradado para la sección hero en lugar de una imagen con personas */
  background: linear-gradient(135deg, #0a407a, #0e5796);
  height: 350px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  color: #fff;
}
.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.55);
}
.hero h1 {
  font-size: 2.8rem;
  margin: 0;
  z-index: 1;
}
.hero p {
  font-size: 1.2rem;
  margin-top: 1rem;
  z-index: 1;
}

/* Navigation */
.menu {
  background: #222;
  padding: 12px 0;
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: wrap;
}
.menu a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}
.menu a:hover {
  color: #00aaff;
}

/* Sections */
.section {
  padding: 60px 20px;
  max-width: 1100px;
  margin: auto;
}
.section.dark {
  /* Fondo azul oscuro para las secciones oscuras */
  background: #0f2d51;
  color: #eaeaea;
}

/* Light section: utiliza fondo claro y texto oscuro */
.section.light {
  background: #f7f7f7;
  color: #222;
}

/* Ajustar enlaces dentro de secciones claras */
.section.light a {
  color: #005999;
}
.section h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  font-weight: 700;
}

/* Grid layout */
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Cards */
.card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
}
.card p {
  margin-top: 10px;
  font-size: 0.95rem;
}

/* Variadores cards */
.grid-variadores {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 20px;
}
.variador-card {
  background: #fff;
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  text-align: center;
}
.variador-card img {
  width: 60px;
  margin-bottom: 10px;
}
.variador-card h3 {
  margin: 8px 0;
  font-size: 1.15rem;
  color: #222;
}
.variador-card p {
  font-size: 0.9rem;
  color: #444;
}

/* Technical table for variadores */
.tabla-variadores-tecnica {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
.tabla-variadores-tecnica th,
.tabla-variadores-tecnica td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
  font-size: 0.95rem;
}
.tabla-variadores-tecnica th {
  background: #222;
  color: #fff;
  font-weight: 600;
}
.tabla-variadores-tecnica tr:nth-child(even) {
  background: #f2f2f2;
}
.tabla-variadores-tecnica td {
  background: #ffffff;
  color: #222;
}
.nota-variadores {
  margin-top: 10px;
  font-size: 0.85rem;
  color: #555;
}

/* PLC cards */
.grid-plc {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 24px;
}
.plc-card {
  background: #fff;
  padding: 18px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  text-align: center;
}
.plc-card img {
  width: 80px;
  margin-bottom: 10px;
}
.plc-card h3 {
  font-size: 1.26rem;
  margin: 10px 0;
  color: #222;
}
.plc-card ul {
  text-align: left;
  font-size: 0.92rem;
  padding-left: 18px;
  margin-top: 8px;
  color: #444;
}
.plc-card li {
  margin-bottom: 5px;
}
.notas-plc {
  margin-top: 14px;
  font-size: 0.83rem;
  color: #555;
}

/* Contact info */
.contact-info {
  text-align: center;
  font-size: 1rem;
  color: #333;
}
.contact-info a {
  color: #0066cc;
  text-decoration: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background: #222;
  color: #fff;
}