:root {
    --blue: #0056b3;
    --light: #f8f9fa;
    --dark: #333;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    margin: 0;
    padding: 0;
}

header {
    background: #fff;
    padding: 1rem 5%;
    border-bottom: 3px solid var(--blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.2rem;
    color: var(--blue);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

nav a {
    text-decoration: none;
    color: var(--blue);
    font-weight: bold;
    transition: color 0.3s;
}

nav a:hover {
    color: #003d7a;
}

/* Hero Bereich für die Startseite */
.hero {
    padding: 100px 10%;
    text-align: center;
    background-size: cover;
    background-position: center;
}

main {
    padding: 40px 10%;
    max-width: 1000px;
    margin: auto;
}

h1, h2, h3 {
    color: var(--blue);
}

/* Responsive Bilder-Anpassung */
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin: 20px 0;
}

.btn {
    background: var(--blue);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    transition: transform 0.2s, background 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #003d7a;
    transform: translateY(-2px);
}

.card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid #eee;
}

footer {
    background: #222;
    color: #ccc;
    padding: 40px 10%;
    text-align: center;
    margin-top: 60px;
}

footer a {
    color: #fff;
    margin: 0 10px;
    text-decoration: none;
    font-size: 0.9rem;
}

/* Mobile Optimierung */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 1rem;
    }
    nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    main {
        padding: 20px 5%;
    }
}