:root {
    --primary-color: #4a90e2;
    --secondary-color: #50e3c2;
    --background-color: #f0f2f5;
    --text-color: #333;
    --white: #fff;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239C92AC' fill-opacity='0.1' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.app {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow-color);
    text-align: center;
    max-width: 500px;
    width: 90%;
}

.title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.description {
    color: #666;
    margin-bottom: 2rem;
}

.results {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 1.5rem;
    flex-wrap: wrap;
    min-height: 80px;
}

.button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.4);
}

.button:hover {
    background-color: #3a82d2;
    transform: translateY(-2px);
}

.lotto-ball {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    animation: pop-in 0.5s ease;
}

@keyframes pop-in {
    0% {
      transform: scale(0);
    }
    80% {
      transform: scale(1.1);
    }
    100% {
      transform: scale(1);
    }
}