:root{--blue:#168fdf;--navy:#001d3a;--text:#075d98;--max:1200px}

*{
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    margin:0;
    font-family:Arial,Helvetica,sans-serif;
    color:var(--text);
    background:#fff;
}

a{
    text-decoration:none;
    color:inherit;
}

.site-header {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    width: 100%;
    box-sizing: border-box;

    display: flex;
    align-items: center;

    padding: 14px 1%;
    color: #fff;
}

/*Tamaño de logo*/
.brand img{
    width:180px;
    height:auto;
    display:block;
}

.nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);

    display: flex;
    align-items: center;
    gap: 15px;

    font-size: 24px;
    letter-spacing: 1.5px;
    font-weight: 700;

    white-space: nowrap;
}

.nav a {
    transition: opacity .2s;
}

.nav a:hover {
    opacity: .7;
}

.social {
    font-weight: 700;
    font-size: 24px;
    margin-left: 5px;
}

/*Redes sociales*/
.social-icons {
    margin-left: auto;

    display: flex;
    align-items: center;
    gap: 16px;
}

.social-icons a {
    display: flex;
    align-items: center;

    color: #fff;
    text-decoration: none;
}

.contact-link {
    gap: 6px;
    font-weight: 700;
    font-size: 24px;
}

.menu-toggle {
    display: none;
    background: none;
    border: 0;
    color: #fff;
    font-size: 28px;
}

.hero{
    min-height:720px;
    background-image:url('assets/imagenes/PortadaNordik.jpg');
    background-size:cover;
    background-position:center;
    position:relative;
    display:grid;
    place-items:center;
}

.hero-overlay{
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(0,20,45,.28),rgba(0,20,45,.2) 55%,rgba(0,20,45,.65));
}

.hero-content{position:relative;
    text-align:center;
    color:#fff;
    margin-top:80px;

    position: absolute;
    top: 70%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-logo{
    width:min(360px,65vw);
    filter:brightness(0) invert(1);
    margin-bottom:18px;
}

.hero h1{
    font-size:clamp(25px,3vw,43px);
    letter-spacing:3px;
    margin:0;
    font-weight:800;
}

.section{
    max-width:var(--max);
    margin:auto;padding:45px 24px;
}

.section h2{
    text-align:center;
    font-size:clamp(28px,4vw,48px);
    color:var(--blue);
    margin:0 0 28px;
    font-weight:900;
    letter-spacing:.5px;
}

.category-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.category-card img{
    width:100%;
    aspect-ratio:1.65;
    object-fit:cover;
    display:block;

}

.category-card span{
    display:block;
    text-align:center;
    font-weight:700;
    font-size:20px;
    padding:9px 0 0;
}

.inside-grid{
    display:grid;
    grid-template-columns:1fr 1.25fr;
    align-items:center;
    gap:50px;
}

.cutaway img{
    width:100%;
    display:block;
}

.features{
    font-size:18px;
    line-height:1.45;
}

.features p{
    margin:0 0 24px;
}

.features strong{
    font-weight:800;
}

.purpose{
    text-align:center;
}  

.purpose p{
    max-width:1050px;
    margin:0 auto 28px;
    font-size:18px;
    line-height:1.45;
}

.footer-mark{
    margin:45px auto 10px;
}

.footer-mark img{
    width: 50%;
    filter:none;
}

.footer-mark small{
    display:block;
    font-weight:700;
    letter-spacing:1px;
    margin-top:5px;

}

footer{
    background:var(--navy);
    color:#fff;
    text-align:center;
    padding:28px;
    line-height:1.8;
    letter-spacing:2px;
}


@media(max-width:850px){
    
    .site-header{
        padding:18px 22px;
    }
    
    .brand img{
        width:120px;
    }
    
    .menu-toggle{
        display:block;
        margin-left:auto;
    }
    
    .nav{
        display:none;
        position:absolute;
        top:70px;
        left:0;
        right:0;
        margin:0;
        padding:22px;
        flex-direction:column;
        background:rgba(0,20,45,.95);
        gap:14px;
    }
    
    .nav.open{
        display:flex;
    }
    
    .nav span{
        display:none;
    }
    
    .hero{
        min-height:620px;
    }
    
    .category-grid,.inside-grid{
        grid-template-columns:1fr;
    }
    
    .inside-grid{
        gap:20px;
    }
    
    .features{
        font-size:16px;
    }
    
    .purpose p{
        font-size:16px;
    }

}