body {
    font-family: Arial;
    text-align: center;
    padding: 50px;
}

input {
    padding: 10px;
    margin: 5px;
    width: 200px;
}

button {
    padding: 10px;
    width: 200px;
    font-size: 16px;
}

.error {
    color: red;
    margin-bottom: 20px;
}

.register-link {
    margin-top: 20px;
    font-size: 14px;
}

.password-wrapper {
    position: relative;
    display: inline-block;
    margin: 5px;
}

.password-wrapper input {
    margin: 0;
    padding-right: 36px;
    width: 200px;
    box-sizing: border-box;
}

.show-password-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: auto;
    font-size: 16px;
    line-height: 1;
    color: #888;
    user-select: none;
    -webkit-user-select: none;
}

.show-password-btn:hover {
    color: #444;
}

#themeToggle {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    align-items: center;
}