* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

h1, h2, h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

p {
    margin-bottom: 15px;
}

/* Navigation */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #3498db;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #3498db;
}

/* Burger Menü (Mobile) */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px;
    transition: all 0.3s ease;
}

/* Sections & Layout */
section {
    padding: 80px 20px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.bg-light {
    background-color: #f9f9f9;
    max-width: 100%;
}

/* Hero Bereich (Startseite) */
.hero {
    background: linear-gradient(rgba(52, 152, 219, 0.1), rgba(52, 152, 219, 0.1));
    max-width: 100%;
    padding: 120px 20px;
}

.hero h1 {
    font-size: 2.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 10px 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-outline {
    background-color: transparent;
    color: #3498db;
    border: 2px solid #3498db;
}

.btn-outline:hover {
    background-color: #3498db;
    color: white;
}

/* Listen & Grids */
.feature-list {
    list-style: none;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.feature-list li {
    margin-bottom: 10px;
    padding: 10px;
    background: #f4f4f4;
    border-radius: 5px;
}

.grid-container, .help-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
}

footer a {
    color: #bdc3c7;
    text-decoration: none;
}

/* Mobile Responsiveness */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 60px;
        left: 0;
        background-color: #fff;
        text-align: center;
        box-shadow: 0 5px 5px rgba(0,0,0,0.1);
    }
    
    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .burger {
        display: block;
    }
}