:root {
    --primary: #00ff88; /* Energie-Grün */
    --dark: #1a1a1a;
    --light: #ffffff;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.container {
    max-width: 800px;
    background: #252525;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border-top: 5px solid var(--primary);
}

h1 { color: var(--primary); font-size: 2.5rem; margin-bottom: 10px; }
h2 { color: var(--primary); margin-top: 30px; }

.btn {
    display: inline-block;
    background: var(--primary);
    color: var(--dark);
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    margin-top: 20px;
}

.feature {
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
}