:root{
    --blue:#5f88a0;
    --dark:#2d5266;
    --soft:#edf4f7;
    --line:#d9e5ea;
    --text:#2d3c44;
}

*{
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    color:var(--text);
    background:#fff;
    line-height:1.7;
}

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

.site-header{
    position:sticky;
    top:0;
    z-index:100;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:24px 7%;
    background:#fff;
    border-bottom:1px solid var(--line);
}

.brand{
    font-size:14px;
    font-weight:bold;
    letter-spacing:.15em;
    text-transform:uppercase;
    color:var(--dark);
}

.nav{
    display:flex;
    gap:28px;
}

/* ---------- Sprachumschalter ---------- */

.language-switch{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--dark);
    white-space:nowrap;
}

.language-switch a{
    color:var(--dark);
    text-decoration:none;
}

.language-switch a.active{
    font-weight:bold;
}

.page{
    padding:60px 7%;
}

.hero{
    display:grid;
    grid-template-columns:1fr 1.2fr;
    gap:70px;
    align-items:center;
}

.hero__image-wrap{
    background:linear-gradient(#fff,var(--soft));
    padding:20px;
}

.hero__image{
    width:100%;
    display:block;
}

h1{
    font-size:64px;
    font-weight:400;
    color:var(--dark);
    margin:0 0 30px;
}

h2{
    color:var(--dark);
    margin:0 0 30px;
    font-size:24px;
}

h3{
    color:var(--dark);
    margin-top:30px;
    margin-bottom:15px;
}

.hero p{
    font-size:18px;
    margin-bottom:20px;
}

.expertise{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    margin:70px 0;
}

.card{
    background:#fbfdfe;
    border:1px solid var(--line);
    border-radius:18px;
    padding:36px;
}

.timeline{
    list-style:none;
    margin:0;
    padding:0;
}

.timeline li{
    display:grid;
    grid-template-columns:70px 1fr;
    gap:18px;
    padding:14px 0;
    border-bottom:1px solid #edf2f5;
}

.timeline strong{
    color:var(--blue);
}

.langs,
.tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}

.langs span,
.tags span{
    padding:10px 16px;
    background:var(--soft);
    border:1px solid #d3e3ea;
    border-radius:999px;
}

/* ---------- Kontaktbereich ---------- */

.bottom{
    display:grid;
    grid-template-columns:1fr 1fr;
    border-top:1px solid var(--line);
    padding-top:50px;
    align-items:start;
}

.bottom > div:first-child{
    justify-self:start;
}

.bottom > div:last-child{
    justify-self:end;
}

.contact{
    text-align:left;
    line-height:1.9;
}

/* ---------- Responsive ---------- */

@media (max-width:900px){

    .site-header{
        display:flex;
        justify-content:space-between;
        align-items:center;
    }

    .hero{
        grid-template-columns:1fr;
    }

    .expertise{
        grid-template-columns:1fr;
    }

    .bottom{
        grid-template-columns:1fr;
    }

    .bottom > div:last-child{
        justify-self:start;
        margin-top:30px;
    }

    h1{
        font-size:46px;
    }

    .nav{
        display:none;
    }

    .language-switch{
        display:flex;
    }

}