body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
}

/* Light Mode */
body.light {
    background-color: #f4f4f4;
    color: #333;
}

/* Dark Mode (default) */
body.dark {
    background-color: #1c2526;
    color: #ffffff;
}

header {
    background-color: #ffd700;
    color: #1c2526;
    padding: 1rem;
    text-align: center;
}

header h1 {
    margin: 0;
}

button {
    padding: 0.5rem 1rem;
    margin: 0.5rem;
    cursor: pointer;
    border-radius: 1rem;
    background-image: linear-gradient(to right, lime, blue);
}

section {
    padding: 2rem;
}

#announcementList, #bookList {
    margin-top: 1rem;
}

.announcement, .book {
    border: 1px solid #ccc;
    padding: 1rem;
    margin-bottom: 1rem;
}

.dark .announcement, .dark .book {
    border-color: #ffffff;
}

.book a {
    color: #ffd700;
    text-decoration: none;
}

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

textarea, input {
    width: 100%;
    margin: 0.5rem 0;
    padding: 0.5rem;
}

#authSection {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
}

#userName {
    margin-left: 1rem;
    font-weight: bold;
}

/* Style for the Only Members section */
#members {
    background-color: #f0f0f0;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

.dark #members {
    background-color: #2a3b3c;
}

#members label {
    display: flex;
    align-items: center;
    font-size: 1.1rem;
}

#members input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

#adminEmailList {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #e0e0e0;
    border-radius: 4px;
}

.dark #adminEmailList {
    background-color: #3a4b4c;
}

#emailList {
    white-space: pre-wrap;
}