body, html {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #FFFFFF;
}

header {
    background-color: #FFFF00;
    padding: 10px;
    display: flex;
    justify-content: space-between;
}

#todoApp {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

#authButtons {
    text-align: center;
    margin-bottom: 20px;
}

.todo-item {
    border: 1px solid #000;
    margin-bottom: 10px;
    padding: 10px;
    display: flex;
    align-items: center;
}

.todo-item-icon {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.todo-item-content {
    flex-grow: 1;
}

.todo-item-title {
    font-weight: bold;
}

.todo-item-time {
    float: right;
}

#newTodoBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #FFFF00;
    border: none;
    padding: 10px 20px;
    font-weight: bold;
    cursor: pointer;
}

@media (max-width: 600px) {
    #todoApp {
        padding: 10px;
    }
}

#authButton {
    cursor: pointer;
}