body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

input[type="text"] {
    display: block;
    margin: 20px auto;
    padding: 10px;
    width: 50%;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

table {
    width: 90%;
    margin: 20px auto;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f2f2f2;
}

button {
    padding: 10px 20px;
    margin: 5px;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    font-size: 16px;
}

button:hover {
    background-color: #ddd;
}

form {
    text-align: center;
    margin: 20px;
}

#popupForm {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border: 1px solid #ddd;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-radius: 8px;
}

#popupForm label {
    font-size: 14px;
    margin-bottom: 5px;
    color: #555;
}

#popupForm input[type="text"], 
#popupForm input[type="number"] {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 10px;
}

#popupForm button {
    padding: 10px;
    font-size: 16px;
    border-radius: 4px;
}

#popupForm button:hover {
    background-color: #ddd;
}
.admin-button {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    font-size: 16px;
    background-color: #555;
    color: white;
    border: none;
    border-radius: 4px;
}

.admin-button:hover {
    background-color: #444;
}

#adminLoginPopup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border: 1px solid #ddd;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: none;
    flex-direction: column;
    gap: 10px;
    border-radius: 8px;
}