/* ================= GRUNDSTILE ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background-color: #f6f6f6;
    color: #333;
    line-height: 1.6;
}

/* ================= HEADER / NAV ================= */
.header {
    background-color: #ffffff;
    border-bottom: 3px solid #0d4b7d;
}

.nav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    list-style: none;
    padding: 15px;
}

.nav li {
    margin: 5px 15px;
}

.nav a {
    text-decoration: none;
    color: #0d4b7d;
    font-weight: bold;
}

.nav .active a {
    color: #f4a000;
}

/* ================= CONTAINER ================= */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

/* ================= HERO ================= */
.hero {
    display: flex;
    gap: 30px;
    align-items: center;
    margin: 40px 0;
}

.hero-image img {
    width: 100%;
    max-width: 250px;
}

.hero-text {
    background-color: #0d4b7d;
    color: #ffffff;
    padding: 25px;
    border-radius: 20px;
}

/* ================= INFO BOXEN ================= */
.info-box {
    padding: 25px;
    border-radius: 20px;
    margin: 25px 0;
}

.info-box.blue {
    background-color: #4f7f99;
    color: #ffffff;
}

.info-box.yellow {
    background-color: #f4a000;
    color: #ffffff;
}

/* ================= LERNZIELE ================= */
.learning {
    margin: 40px 0;
}

.learning h2 {
    margin-bottom: 15px;
}

.learning ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.learning li {
    margin-bottom: 10px;
}

.learning-note {
    font-size: 0.95rem;
    color: #555;
}

/* ================= FOOTER ================= */
.footer {
    background-color: #ffffff;
    padding: 30px 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    border-top: 2px solid #ddd;
}

.footer-column {
    width: 30%;
    min-width: 200px;
    margin-bottom: 20px;
}

.footer-column h4 {
    margin-bottom: 10px;
    color: #0d4b7d;
}

/* ================= RESPONSIVE DESIGN ================= */
@media (max-width: 768px) {

    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        border-radius: 15px;
    }

    .footer {
        flex-direction: column;
        text-align: center;
    }

    .footer-column {
        width: 100%;
    }
}