body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Inter', sans-serif;
    flex-direction: column;
    background-color: #f1f3f5;
}

.wheel-container {
    position: relative;
    width: 70vmin; /* Increased wheel size for better mobile responsiveness */
    height: 70vmin;
}

.wheel {
    width: 100%;
    height: 100%;
    transform-origin: center;
    transition: transform 8s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    border: 0.5vmin solid #1b263b; /* Dark navy blue border */
    border-radius: 50%; /* Ensure the wheel is circular */
    background: linear-gradient(145deg, #f8f9fa, #dbe2ef); /* Lighter, modern gradient */
}

.arrow {
    position: absolute;
    top: 35vmin; /* Adjusted arrow placement */
    left: 105%;
    transform: translateY(-50%) rotate(270deg); /* Arrow points to the right */
    width: 0;
    height: 0;
    border-left: 2vmin solid transparent;
    border-right: 2vmin solid transparent;
    border-bottom: 4vmin solid #1b263b; /* Dark navy blue for the arrow */
}

.spin-button {
    margin-top: 4vmin;
    padding: 1.5vmin 4vmin;
    background: linear-gradient(145deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    font-size: 2.5vmin;
    border: none;
    border-radius: 4vmin;
    cursor: pointer;
    box-shadow: 0 1vmin 3vmin rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.spin-button:hover {
    transform: translateY(-0.5vmin);
    box-shadow: 0 1.5vmin 4vmin rgba(0, 0, 0, 0.25);
}

.result {
    margin-top: 2vmin;
    font-size: 2.5vmin;
    color: #333;
    font-weight: 600;
    height: 5vmin; /* Prevents layout shift */
    line-height: 5vmin; /* Centers text vertically */
}