*{
  box-sizing: border-box;
}

body{
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  font-size:18px;
  line-height:1.6;
  background:#ffffff;
  color:#111;
}

.wrap{
  max-width:900px;
  margin:0 auto;
  padding:18px;
}

.header{
  padding-top:26px;
}

h1{
  margin:0;
  font-size:34px;
}

h2{
  margin-top:0;
  font-size:24px;
}

.subtitle{
  margin:6px 0 14px 0;
  font-size:20px;
}

.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.nav a{
  text-decoration:none;
  border:2px solid #111;
  border-radius:10px;
  padding:10px 14px;
  color:#111;
}

.nav a.active{
  background:#111;
  color:#fff;
}

.card{
  border:2px solid #e5e5e5;
  border-radius:14px;
  padding:16px;
  margin:16px 0;
  background:#fff;
}

/* Portrait-Layout */

.about-flex{
  display:flex;
  align-items:flex-start;
  gap:22px;
}

.about-text{
  flex:1;
}

.portrait{
  width:200px;
  height:auto;
/*  border:3px solid #ddd;
  padding:6px;
  background:#fff; */
}

/* Mobile */
@media (max-width: 700px){
  .about-flex{
    flex-direction:column;
  }

  .portrait{
    width:190px;
  }
}

.footer{
  color:#333;
  padding-bottom:30px;
}


.grid img{
  height:500px;
  object-fit:contain;
  background:#f5f5f5;
}

/* Mobile: Bilder kleiner */
@media (max-width: 700px){
  .grid img{
    height:160px;      /* Handy-Höhe */
  }
}

/* Sehr kleine Handys */
@media (max-width: 400px){
  .grid img{
    height:140px;
  }
}