/* --- Grundlegende Einstellungen & Variablen --- */
:root {
    --primary-color: #6a0dad; /* Lebhaftes Lila als Akzentfarbe */
    --primary-color-dark: #5a0b94;
    --background-light: #f9f9f9;
    --background-dark: #121212;
    --text-light: #1d1d1f;
    --text-dark: #f5f5f7;
    --secondary-text-light: #515152;
    --secondary-text-dark: #a1a1a6;
    --card-background-light: #ffffff;
    --card-background-dark: #1d1d1d;
    --border-light: #e5e5e5;
    --border-dark: #3a3a3c;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--background-light);
    color: var(--text-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header & Navigation --- */
.main-header {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-light);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-nav .logo {
    font-weight: 600;
    font-size: 1.2em;
    color: var(--text-light);
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 25px;
}

.main-nav ul a {
    text-decoration: none;
    color: var(--secondary-text-light);
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.main-nav ul a:hover {
    color: var(--primary-color);
}

/* --- Hero Sektion --- */
.hero {
    padding: 100px 0;
    text-align: center;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

.hero-content h1 {
    font-size: 3.5em;
    font-weight: 700;
    line-height: 1.1;
    margin: 0 0 20px;
    color: var(--text-light);
}

.hero-content .subtitle {
    font-size: 1.2em;
    max-width: 600px;
    margin: 0 auto 30px;
    color: var(--secondary-text-light);
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* --- Features Sektion --- */
.features {
    padding: 80px 0;
    background-color: #fff;
}

.features h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 20px;
}

.feature-card .material-symbols-outlined {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.4em;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--secondary-text-light);
    font-size: 0.95em;
}

/* --- Privacy Sektion --- */
.privacy-section {
    padding: 100px 0;
    background-color: var(--background-light);
}

.privacy-content {
    max-width: 650px;
    margin: 0 auto;
    text-align: center;
}

.privacy-content h2 {
    font-size: 2.8em;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.privacy-content p {
    font-size: 1.1em;
    color: var(--secondary-text-light);
    margin-bottom: 30px;
}

.secondary-button {
    display: inline-block;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 12px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.secondary-button:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* --- Footer --- */
.main-footer {
    padding: 40px 0;
    text-align: center;
    background-color: #fff;
    border-top: 1px solid var(--border-light);
}

.footer-nav {
    margin-bottom: 20px;
}

.footer-nav a {
    color: var(--secondary-text-light);
    text-decoration: none;
    margin: 0 15px;
    font-size: 0.9em;
}

.footer-nav a:hover {
    color: var(--primary-color);
}

.main-footer p {
    font-size: 0.85em;
    color: #aaa;
    margin: 0;
}

/* --- Responsive Design --- */
@media (min-width: 768px) {
    .hero .container {
        flex-direction: row;
        text-align: left;
    }

    .hero-content {
        flex: 1;
    }

    .hero-content h1, .hero-content .subtitle {
        margin-left: 0;
        margin-right: 0;
    }
    
    .hero-image {
        flex: 0 0 40%;
    }
}

@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 2.5em;
    }
    
    .features h2, .privacy-content h2 {
        font-size: 2em;
    }

    .main-nav ul {
        display: none; /* Vereinfachtes Menü für Mobile, kann später erweitert werden */
    }
}