:root {
  --azul-tech: #001f3f;
  --azul-oscuro: #0a192f;
  --verde-neon: #39FF14;
  --blanco: #ffffff;
  --gris-claro: #f4f7f6;
  --azul-neon: #00d4ff;
}

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

body {
  background: var(--blanco);
  color: #333;
  line-height: 1.6;
}

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

/* header*/
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;
}

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

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

.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-tech);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 50%;
  font-weight: bold;
}

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

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--azul-tech);
  margin-bottom: 50px;
}

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

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

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

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

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

.features li {
  font-size: 14px;
  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;
}

.btn-action {
  width: 100%;
  padding: 15px;
  background: var(--azul-tech);
  color: var(--verde-neon);
  border: none;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
}

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

.eng-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.eng-row {
  display: flex;
  align-items: center;
  background: #fff;
  padding: 30px;
  margin-bottom: 30px;
  border-radius: 20px;
  border: 1px solid #eee;
  cursor: pointer;
}

.eng-icon-circle {
  width: 90px;
  height: 90px;
  min-width: 90px;
  border-radius: 50%;
  margin-left: 40px;
  border: 2px solid var(--azul-neon);
  overflow: hidden;
  display: flex;
}

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

/*footer*/
footer {
  background: #001f3f;
  color: #ffffff;
  padding: 30px 0;
  text-align: center;
  border-top: 2px solid #39FF14;
}

.copyright-text {
  font-size: 14px;
  font-weight: 500;
}

/* responsive*/
@media (max-width: 768px) {
  header {
    height: auto;
    padding: 15px 0;
  }
  .header-inner {
    flex-direction: column;
    gap: 15px;
  }
  nav {
    margin: 0;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .eng-row {
    flex-direction: column-reverse;
    text-align: center;
    gap: 20px;
  }
  .eng-icon-circle {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.5rem;
  }
  .product-card {
    padding: 20px;
  }
}