:root {
    --primary-color: #4a90e2;
    --accent-color: #f39c12;
    --background-color: #f5f6fa;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    padding: 20px;
}

.control-panel {
    margin-bottom: 20px;
}

.control-panel label {
    color: #333;
    font-size: 16px;
    margin-right: 5px;
}

input {
    padding: 10px;
    margin: 5px;
    border: 2px solid var(--primary-color);
    border-radius: 5px;
    font-size: 16px;
}

button {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #357abd;
}

.wheel-container {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

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

.pointer {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-top: 40px solid var(--accent-color);
}

.result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    font-size: 18px;
    transition: all 0.3s;
}

.success {
    background-color: #2ecc71;
    color: white;
}

.failure {
    background-color: #e74c3c;
    color: white;
}

.page-title {
    color: var(--primary-color);
    font-size: 28px;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}