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



header { 
  position: fixed;      /*fixiert den Header */
  top: 0;               /* immer oben */
  left: 0;
  width: 100%;
  background: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  box-sizing: border-box;
  margin: 0;

}

/* Body */
body { 
  padding-top: 100px; /* Header-Höhe */
  background: linear-gradient(to bottom, #ccefff, #e6f7ff); /* sanfter Hellblau-Verlauf */ 
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
}


nav a { 
  color: #0a527b;
  text-decoration: none;
  margin-left: 1.5rem;
  padding: 8px 16px;
  border-radius: 5px;
  transition: background 0.3s;
}

nav a:hover { 
  background: rgba(0,0,0,0.05);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem 6rem 2rem; /* mehr Abstand unten zu den Karten */
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  color: #004a70;
}

.hero p {
  font-size: 1.2rem;
  color: #006699;
}

/* Auswahl-Karten */
.auswahl-container {  
  display: flex; /* Flexbox für Layout */
  justify-content: center; 
  gap: 3rem;        /*   Abstand zwischen den Pop-ups */
  flex-wrap: wrap;
  padding: 2rem;
  margin-top: -2rem;   
}


.karte {
  background: linear-gradient(to bottom right, #d9f0ff, #aee0ff);
  border-radius: 15px; 
  padding: 2rem 4rem;  /* mehr Innenabstand, größere Karte */
  width: 450px;         /* breite der Karte */
  min-height: 200px;    /* Höhe der Karte */
  text-align: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.karte3 {
  background: linear-gradient(to bottom right, #d9f0ff, #aee0ff);
  border-radius: 15px; 
  padding: 2rem 4rem;  /* mehr Innenabstand, größere Karte */
  width: 450px;         /* breite der Karte */
  min-height: 200px;    /* Höhe der Karte */
  text-align: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.karte h2 { 
  font-size: 2rem;     /* größere Überschrift */
  margin-bottom: 1rem;
  color: #004a70;
}

.karte p { 
  font-size: 1.2rem; 
  margin-bottom: 1rem; /* Abstand zwischen Text und Button vergrößert */
  color: #003f5c;
}

/* Button auf Karte */
.karte button {
  background-color: #007acc;
  color: white;
  border: none;
  padding: 14px 30px; 
  border-radius: 25px; 
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

.karte button:hover {
  background-color: #005f99;
  transform: translateY(-3px);
}

/* Hover-Effekt für Karte */
.karte:hover {
  transform: translateY(-10px);  
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.karte3:hover {
  transform: translateY(-10px);  
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

/* Footer */
footer { 
  text-align: center; 
  padding: 2rem; 
  margin-top: 4rem;
  color: #004a70;
}

footer a {
  color: #003f5c;
  text-decoration: underline; 
}


.logo {
  display: flex;        
  align-items: center;
  gap: 0;               /* kein Abstand */
  font-size: 1.8rem;
  font-weight: bold;
}
.logo img {
  height: 70px;
  width: auto;
  margin: 0;
  padding: 0;
  display: block;
}