:root {
  --azul-oscuro: #001f3f;
  --azul-neon: #00d4ff;
  --verde-neon: #39FF14;
  --gris-fondo: #f1f3f5;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

/*header*/
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  height: 80px;
  background: #fff;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-area img {
  width: 45px;
  height: auto;
}

nav {
  display: flex;
  gap: 25px;
  margin-left: auto;
  margin-right: 30px;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
}

.cart-area {
  position: relative;
  cursor: pointer;
}

.cart-area img {
  width: 22px;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--verde-neon);
  color: var(--azul-oscuro);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 50%;
  font-weight: bold;
  transition: transform 0.2s ease;
  display: inline-block;
}

.cart-count.active {
  transform: scale(1.3);
}

/*productos */
.content-wrapper {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 800;
  color: var(--azul-oscuro);
  margin-bottom: 40px;
}

.product-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.product-card {
  background: #fff;
  border: 2px solid var(--azul-neon);
  border-radius: 15px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: 0.3s ease;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 212, 255, 0.2);
}

.product-card h3 {
  font-size: 22px;
  color: var(--azul-oscuro);
  margin-bottom: 20px;
  text-align: center;
}

.features {
  list-style: none;
  margin-bottom: 20px;
  flex-grow: 1;
}

.features li {
  font-size: 14px;
  color: #444;
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.features li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--azul-neon);
  font-weight: bold;
}

.rubro {
  background: #f0faff;
  border-left: 4px solid var(--verde-neon);
  padding: 10px;
  font-size: 13px;
  margin-bottom: 25px;
  border-radius: 4px;
}

.btn-action {
  width: 100%;
  padding: 14px;
  background: var(--azul-oscuro);
  color: var(--verde-neon);
  border: none;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
  text-transform: uppercase;
  position: relative;
  z-index: 10;
  transition: all 0.2s ease;
}

/*inge*/
.engineering-section {
  background-color: var(--gris-fondo);
  padding: 80px 20px;
  margin-top: 50px;
  border-radius: 50px 50px 0 0;
}

.eng-container {
  max-width: 900px;
  margin: 0 auto;
}

.eng-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  padding: 25px;
  margin-bottom: 25px;
  border-radius: 20px;
  border: 2px solid var(--azul-neon);
  transition: 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.eng-icon-circle {
  width: 120px;
  height: 120px;
  min-width: 120px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 40px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  overflow: hidden;
  border: 2px solid var(--azul-neon);
}

.eng-icon-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* footer*/
footer {
  background: var(--azul-oscuro);
  color: #fff;
  text-align: center;
  padding: 40px;
  border-top: 5px solid var(--verde-neon);
}

/* seccion responsiva */
@media (max-width: 768px) {
  header {
    height: auto;
    padding: 15px 0;
  }

  .header-inner {
    flex-direction: column;
    gap: 15px;
  }

  nav {
    margin: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
  }

  .eng-row {
    flex-direction: column-reverse;
    text-align: center;
    gap: 20px;
  }

  .eng-icon-circle {
    margin-left: 0;
  }

  .section-title {
    font-size: 24px;
    padding: 0 10px;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .logo-area strong {
    font-size: 14px;
  }
}