:root {
    --primary-color: #3f51b5; /* Blau */
    --secondary-color: #f44336; /* Rot */
    --background-color: #1a1a1a; /* Dunkelgrau */
    --card-bg-color: #2c2c2c; /* Etwas helleres Grau für die Karte */
    --text-color: #ffffff; /* Weiß */
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    text-align: center;
}

.container {
    max-width: 600px;
    width: 100%;
}

.card {
    background-color: var(--card-bg-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    transition: transform var(--transition-speed) ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
}

.logo {
    width: 250px;
    margin-bottom: 20px;
}

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

p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background-color: var(--secondary-color);
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.2rem;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed) ease-in-out, transform var(--transition-speed) ease-in-out;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #d32f2f;
    transform: scale(1.05);
}

.footer {
    margin-top: 30px;
    font-size: 0.9rem;
    color: #888;
}

.lang-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 0.9rem;
}

.lang-switcher a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.lang-switcher a:hover {
    color: #fff;
}

.lang-switcher a.active {
    color: #fff;
    font-weight: bold;
}