body {
    font-family: 'Montserrat', sans-serif;
    background: #1a2526; /* Dark mode default */
    color: #e0e0e0; /* Dark mode text */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background 0.3s ease, color 0.3s ease;
}

.member-list {
    background: #263238;
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    max-width: 700px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    margin: 20px;
    transition: background 0.3s ease;
}

h1 {
    font-size: 2em;
    font-weight: 600;
    margin-bottom: 25px;
    text-align: center;
    color: #e0e0e0; /* Dark mode default */
    transition: color 0.3s ease;
}

.search-container {
    margin-bottom: 25px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 12px 40px 12px 15px;
    border: 1px solid #37474f; /* Dark mode border */
    border-radius: 6px;
    background: #2e3b3e; /* Dark mode background */
    color: #e0e0e0; /* Dark mode text */
    font-size: 1em;
    transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
    box-sizing: border-box;
}

.search-input::placeholder {
    color: #90a4ae; /* Dark mode placeholder */
}

.search-input:focus {
    border-color: #546e7a;
    outline: none;
}

.search-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #90a4ae; /* Dark mode icon */
    font-size: 1.2em;
    transition: color 0.3s ease;
}

.member {
    display: flex;
    align-items: center;
    padding: 15px;
    margin: 10px 0;
    background: #2e3b3e; /* Dark mode default */
    border: 1px solid #37474f; /* Dark mode border */
    border-radius: 6px;
    color: #e0e0e0; /* Dark mode text */
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
    transition: background 0.2s ease, border-color 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.member.hidden {
    display: none;
}

.member:hover {
    background: #37474f;
    border-color: #455a64;
}

.member .profile-pic {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.member .content {
    flex-grow: 1;
}

.member .name {
    font-size: 1.1em;
    font-weight: 600;
    margin: 0 0 4px;
    color: #e0e0e0; /* Dark mode default */
    transition: color 0.3s ease;
}

.member .link {
    font-size: 0.9em;
    color: #b0bec5; /* Dark mode link */
    text-decoration: none;
    transition: color 0.3s ease;
}

.member .link:hover {
    color: #e0e0e0;
    text-decoration: underline;
}

.fb-icon {
    width: 28px;
    height: 28px;
    background: #546e7a; /* Dark mode default */
    color: #fff;
    text-align: center;
    line-height: 28px;
    border-radius: 50%;
    margin-left: 15px;
    transition: background 0.3s ease;
}

.fb-icon:hover {
    background: #607d8b;
}

.credit {
    margin-top: 25px;
    text-align: center;
    font-size: 0.85em;
    color: #90a4ae; /* Dark mode default */
    padding-top: 15px;
    border-top: 1px solid #37474f; /* Dark mode border */
    transition: color 0.3s ease, border-top-color 0.3s ease;
}

.credit a {
    color: #b0bec5; /* Dark mode link */
    text-decoration: none;
    transition: color 0.3s ease;
}

.credit a:hover {
    color: #e0e0e0;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 25px;
    gap: 15px;
}

.pagination button {
    padding: 8px 16px;
    background: #546e7a; /* Dark mode default */
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 600;
    transition: background 0.3s ease;
}

.pagination button:disabled {
    background: #455a64; /* Dark mode disabled */
    cursor: not-allowed;
}

.pagination button:hover:not(:disabled) {
    background: #607d8b;
}

.pagination span {
    font-size: 0.95em;
    color: #b0bec5; /* Dark mode default */
    transition: color 0.3s ease;
}

.theme-toggle {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 32px;
    height: 32px;
    background: #546e7a; /* Dark mode default */
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 1em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.theme-toggle:hover {
    background: #607d8b;
}

/* Light Mode */
body.light-mode {
    background: #f5f6f5;
    color: #333;
}

body.light-mode .member-list {
    background: #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

body.light-mode h1 {
    color: #2c3e50;
}

body.light-mode .member {
    background: #fff;
    border-color: #eee;
    color: #333;
}

body.light-mode .member:hover {
    background: #fafafa;
    border-color: #ddd;
}

body.light-mode .member .name {
    color: #2c3e50;
}

body.light-mode .member .link {
    color: #555;
}

body.light-mode .member .link:hover {
    color: #2c3e50;
}

body.light-mode .search-input {
    background: #fff;
    border-color: #ddd;
    color: #333;
}

body.light-mode .search-input::placeholder {
    color: #999;
}

body.light-mode .search-input:focus {
    border-color: #2c3e50;
}

body.light-mode .search-icon {
    color: #999;
}

body.light-mode .credit {
    color: #777;
    border-top-color: #eee;
}

body.light-mode .credit a {
    color: #2c3e50;
}

body.light-mode .credit a:hover {
    color: #2c3e50;
}

body.light-mode .pagination span {
    color: #555;
}

body.light-mode .pagination button {
    background: #2c3e50;
}

body.light-mode .pagination button:disabled {
    background: #ccc;
}

body.light-mode .pagination button:hover:not(:disabled) {
    background: #34495e;
}

body.light-mode .fb-icon {
    background: #2c3e50;
}

body.light-mode .fb-icon:hover {
    background: #34495e;
}

body.light-mode .theme-toggle {
    background: #2c3e50;
}

body.light-mode .theme-toggle:hover {
    background: #34495e;
}

/* โฆษณาด้านข้าง (เดิม) */
.floating-ad {
    position: fixed;
    top: 20%;
    width: 200px;
    background: #263238;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    transition: background 0.3s ease;
}

.left-ad {
    left: 20px;
}

.right-ad {
    right: 20px;
}

/* โฆษณาด้านล่าง (ใหม่) */
.bottom-ad {
    position: fixed;
    bottom: 20px; /* ห่างจากขอบล่าง 20px */
    left: 50%; /* อยู่กึ่งกลาง */
    transform: translateX(-50%); /* จัดกึ่งกลางแนวนอน */
    width: 500px; /* ความกว้าง banner */
    background: #263238;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    transition: background 0.3s ease;
}

.ad-content {
    text-align: center;
    color: #e0e0e0;
    font-family: 'Montserrat', sans-serif;
}

.ad-image {
    width: 100%;
    height: auto;
    border-radius: 6px;
    margin-bottom: 10px;
}

.ad-content h3 {
    font-size: 1.1em;
    font-weight: 600;
    margin: 0 0 8px;
    color: #e0e0e0;
    transition: color 0.3s ease;
}

.ad-content p {
    font-size: 0.9em;
    color: #b0bec5;
    margin: 0 0 10px;
    transition: color 0.3s ease;
}

.ad-button {
    display: inline-block;
    padding: 8px 16px;
    background: #28a745; /* สีเขียว */
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: 600;
    transition: background 0.3s ease;
}

.ad-button:hover {
    background: #218838; /* สีเขียวเข้มเมื่อ hover */
}

.close-ad {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 20px;
    height: 20px;
    background: #ff4444;
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 14px;
    cursor: pointer;
    line-height: 20px;
    transition: background 0.3s ease;
}

.close-ad:hover {
    background: #cc0000;
}

/* Light Mode Adjustments */
body.light-mode .floating-ad,
body.light-mode .bottom-ad {
    background: #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

body.light-mode .ad-content h3 {
    color: #2c3e50;
}

body.light-mode .ad-content p {
    color: #555;
}

body.light-mode .ad-button {
    background: #28a745;
}

body.light-mode .ad-button:hover {
    background: #218838;
}