body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(145deg, #1f1f2e, #2c2c3d);
    color: #ffffff;
    margin: 0;
    padding: 0;
}

header {
    position: relative; /* wichtig für .back-button */
    text-align: center;
    padding: 2rem 1rem 1rem;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 2.5rem;
    color: #00e5ff;
    margin-bottom: 0.5rem;
}

header .slogan {
    font-size: 1.2rem;
    color: #ccc;
    text-shadow: 0 0 5px rgba(0, 229, 255, 0.2);
}

/* === Zurück-Button === */
.back-button {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: #00d9ff;
    color: #0d1117;
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
    transition: background-color 0.3s ease, transform 0.3s ease;
    font-size: 1rem;
    z-index: 1000;
}

.back-button:hover {
    background-color: #00aacc;
    transform: scale(1.05);
}

/* Responsives Verhalten */
@media (max-width: 768px) {
    .back-button {
        top: 10px;
        left: 10px;
        padding: 8px 14px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .back-button {
        top: 8px;
        left: 8px;
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

.settings-container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(0, 9, 22, 0.95);
    border-radius: 20px;
    box-shadow:
        0 0 15px rgba(0, 229, 255, 0.05),
        0 4px 10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.section {
    background-color: rgba(10, 15, 25, 0.95);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.1);
    transition: transform 0.3s ease;
}

.section:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.2);
}

.section h2 {
    margin-bottom: 1rem;
    color: #00e5ff;
}

.switch-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1rem 0;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #888;
    transition: 0.4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #00e5ff;
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.settings-form input {
    padding: 0.8rem;
    border-radius: 8px;
    border: none;
    background: #1a1a2e;
    color: #fff;
}

.settings-form button {
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    background-color: #00e5ff;
    color: #00172e;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.settings-form button:hover {
    background-color: #4cc3dd;
    transform: scale(1.02);
}

.danger-zone button {
    background-color: #ff4d4d;
    color: #fff;
}

.danger-zone button:hover {
    background-color: #cc0000;
}

/* === Footer === */
footer {
    background-color: #111122;
    padding: 1rem;
    text-align: center;
    font-size: 0.9rem;
    color: #aaa;
}

footer a {
    color: #66d9ef;
    text-decoration: none;
    margin: 0 0.5rem;
}

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