body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
}

.container {
    text-align: center;
    width: 90%;
    max-width: 500px;
    margin: auto;
}

.wheel-container {
    position: relative;
    margin: 20px 0;
}

canvas {
    width: 100%;
    height: auto;
}

.arrow {
    position: absolute;
    top: 52%;
    left: 51%;
    transform: translate(-50%, -100%) rotate(-90deg);
    width: 0;
    height: 0;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-top: 20px solid red;
    z-index: 1;
}

.btn {
    display: block;
    width: 100%;
    margin: 10px 0;
    padding: 10px;
    font-size: 16px;
    color: white;
    background-color: #007BFF;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

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

#result {
    margin-top: 20px;
    font-size: 1.5em;
    font-weight: bold;
}

#list-editor {
    width: 90%;
    margin-top: 20px;
}

.hidden {
    display: none;
}

#item-list {
    list-style: none;
    padding: 0;
}

#item-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

#item-list button {
    padding: 5px;
    font-size: 12px;
    color: white;
    background-color: #FF4D4D;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#item-list button:hover {
    background-color: #cc0000;
}

#new-item {
    width: 70%;
    padding: 10px;
    margin-right: 5%;
    font-size: 16px;
}

#add-item {
    width: 25%;
}