body {
    font-family: Arial, sans-serif;
    background-color: #0b0c10;
    color: #c5c6c7;
    margin: 0;
    padding: 0;
}

header {
    text-align: center;
    padding: 20px;
    background: #1f2833;
}

header h1 {
    color: #66fcf1;
    margin-bottom: 5px;
}

.subtitle {
    font-style: italic;
    color: #45a29e;
}

section {
    padding: 20px;
    max-width: 800px;
    margin: auto;
}

h2 {
    color: #66fcf1;
}

input, button {
    padding: 10px;
    margin: 5px 0;
}

button {
    background: #45a29e;
    border: none;
    color: white;
    cursor: pointer;
}

button:hover {
    background: #66fcf1;
}

.disabled-btn {
    background: gray;
    cursor: not-allowed;
}

.disclaimer {
    color: #ffb347;
}

.apod-container {
    text-align: center;
}

.apod-placeholder img {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 10px;
}

/* Toggle Switch Styling */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}
.switch input { display: none; }
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0;
    right: 0; bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: #45a29e;
}
input:checked + .slider:before {
    transform: translateX(26px);
}