body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

#app {
    width: 80%;
    max-width: 600px;
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    margin-bottom: 2rem;
}

.generator-container {
    text-align: center;
    margin-bottom: 2rem;
}

#generate-btn {
    padding: 0.8rem 1.5rem;
    font-size: 1.2rem;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
}

#lotto-numbers-display {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.lotto-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
}

.history-container h2 {
    margin-bottom: 1rem;
}

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

#history-list li {
    padding: 0.5rem;
    border-bottom: 1px solid #eee;
}