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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #0f0f0f;
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background: #1a1a1a;
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    border: 1px solid #2a2a2a;
}

h1 {
    font-size: 24px;
    margin-bottom: 24px;
    color: #ffffff;
}

input {
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 12px;
    background: #0f0f0f;
    border: 1px solid #333;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 14px;
    outline: none;
}

input:focus {
    border-color: #4a9eff;
}

button {
    width: 100%;
    padding: 12px;
    background: #4a9eff;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
}

button:hover {
    background: #3a8eef;
}

.link {
    display: block;
    text-align: center;
    margin-top: 16px;
    color: #888;
    font-size: 13px;
}

.link a {
    color: #4a9eff;
    text-decoration: none;
}

.link a:hover {
    text-decoration: underline;
}

#ergebnis {
    margin-top: 12px;
    padding: 10px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
}

.success {
    background: #0a2a0a;
    color: #4ade80;
    border: 1px solid #166534;
}

.error {
    background: #2a0a0a;
    color: #f87171;
    border: 1px solid #991b1b;
}

#welcome {
    font-size: 18px;
    margin-bottom: 20px;
}