: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 { 
    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;
    font-weight: 800;
    color: var(--azul-tech);
    margin-bottom: 50px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 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 ease;
    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;
    font-size: 1.25rem;
}

.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;
    transition: 0.3s;
}

.btn-action:hover {
    background: #003366;
}

/* 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;
    transition: 0.3s;
}

.eng-row:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.eng-text { flex: 1; }

.eng-text h3 { color: var(--azul-tech); margin-bottom: 10px; }

.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: 850px) {
    header {
        height: auto;
        padding: 15px 0;
    }
    .header-inner {
        flex-direction: column;
        gap: 15px;
    }
    nav {
        margin-right: 0;
        margin-left: 0;
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .product-grid { 
        grid-template-columns: 1fr; 
    }
    .eng-row { 
        flex-direction: column-reverse; 
        text-align: center; 
        gap: 20px;
    }
    .eng-icon-circle { 
        margin-left: 0; 
    }
    .engineering-section {
        padding: 40px 0;
    }
}