:root {
    --primary-color: #1dc7b5; /* Lebhaftes Türkis/Cyan als Akzent */
    --background-color: #1a202c; /* Dunkles Blau/Grau */
    --card-background: #2d3748;
    --text-color: #e2e8f0;
    --heading-color: #ffffff;
    --font-family-headings: 'Inter', sans-serif;
    --font-family-body: 'Open Sans', sans-serif;
}

body {
    margin: 0;
    font-family: var(--font-family-body);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    background-color: rgba(45, 55, 72, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 90%;
    border-bottom: 1px solid var(--card-background);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-family-headings);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--heading-color);
}

.logo img {
    height: 40px;
    margin-right: 15px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.button {
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.button-primary {
    background-color: var(--primary-color);
    color: var(--background-color);
}

.button-primary:hover {
    background-color: #18a393;
}

.button-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.button-outline:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
}

.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem;
    min-height: 70vh;
    background: linear-gradient(rgba(26, 32, 44, 0.8), rgba(26, 32, 44, 1)), url('https://cachyos.de/hero.png') no-repeat center center/cover;
}

.hero-content h1 {
    font-family: var(--font-family-headings);
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-family: var(--font-family-headings);
    font-size: 1.5rem;
    color: var(--heading-color);
    margin-bottom: 0.5rem;
}

.info-section {
    padding: 4rem 5%;
    max-width: 900px;
    margin: 0 auto;
}

.info-section.alt-bg {
    background-color: var(--card-background);
}

.info-content h2 {
    font-family: var(--font-family-headings);
    font-size: 2.5rem;
    text-align: center;
    color: var(--heading-color);
    margin-bottom: 2rem;
}

.info-content ul {
    list-style: none;
    padding-left: 0;
}

.info-content ul li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 1rem;
}

.info-content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.info-content .button {
    display: inline-block;
    margin-top: 1.5rem;
}

footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--card-background);
    color: #a0aec0;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* Vereinfachtes Menü für Mobile, ggf. durch Hamburger-Menü ersetzen */
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}