/* Grundlayout */
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #222;
}

/* Header */
header {
    background: #111;
    color: #fff;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo {
    font-size: 24px;
    font-weight: bold;
}

header .logo span {
    color: #00e0ff;
}

nav a {
    color: #fff;
    margin-left: 20px;
    text-decoration: none;
    font-size: 16px;
}

nav a:hover {
    color: #00e0ff;
}

/* Hero */
.hero {
    text-align: center;
    padding: 120px 20px;
    background: linear-gradient(135deg, #00e0ff, #0066ff);
    color: #fff;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero h2 {
    font-size: 24px;
    margin-bottom: 20px;
}

.cta {
    display: inline-block;
    padding: 12px 25px;
    background: #fff;
    color: #0066ff;
    font-weight: bold;
    border-radius: 6px;
    text-decoration: none;
}

.cta:hover {
    background: #e6e6e6;
}

/* Sections */
.section {
    padding: 60px 30px;
    max-width: 900px;
    margin: auto;
}

.section.dark {
    background: #222;
    color: #fff;
}

.features li {
    margin: 10px 0;
    font-size: 18px;
}

/* PROXX Grid */
.proxx-grid {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.proxx-item {
    flex: 1;
    background: #333;
    padding: 20px;
    border-radius: 8px;
}

.proxx-item h3 {
    color: #00e0ff;
}

/* Umwelt / Flex-Fuel Sektion */
#eco {
    background: #e8f7ec; /* sanftes Grün */
    border-left: 8px solid #2ecc71; /* kräftiges Nachhaltigkeitsgrün */
    padding: 60px 30px;
}

#eco h2 {
    color: #2ecc71;
}

#eco p {
    font-size: 18px;
    line-height: 1.6;
}

#eco .features li {
    color: #1e7f4f;
    font-weight: bold;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background: #111;
    color: #fff;
    margin-top: 40px;
}