body {
    font-family: Arial, sans-serif;
    background-color: #f5f7fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.registration-container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

.registration-container h2 {
    margin-top: 0;
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
}

.password-toggle {
    position: relative;
}

.password-toggle input {
    padding-right: 30px;
}

.toggle-btn {
    position: absolute;
    right: 8px;
    top: 28px;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    padding: 10px;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.submit-btn.login {
    background-color: #007bff;
}

.submit-btn.register {
    background-color: #2eb92e;
}

.submit-btn.delete {
    background-color: #f00;
}

.submit-btn.login:hover {
    background-color: #0056b3;
}

.submit-btn.register:hover {
    background-color: #269926;
}

.submit-btn.delete:hover {
    background-color: #b30000;
}

/* Top Navigation Bar */
.top-nav {
    background-color: #fff;
    overflow: hidden;
    display: flex;
    justify-content: center;
    padding: 10px 0;
    margin-bottom: 20px;

    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);

    position: absolute;
    top: 10px;
    border-radius: 10px;
}

.top-nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.top-nav li {
    margin: 0 10px;
}

.top-nav a {
    color: black;
    text-decoration: none;
    padding: 10px 20px;
    display: block;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.top-nav a:hover {
    background-color: #999;
}

.top-nav #nav-delete.active {
    background-color: #f00;
}

.top-nav #nav-register.active {
    background-color: #2eb92e;
}

.top-nav #nav-login.active {
    background-color: #007bff;
}