:root {
    --primary-color: oklch(65% 0.25 260);
    --secondary-color: oklch(85% 0.15 260);
    --background-color: oklch(98% 0.02 260);
    --text-color: oklch(20% 0.02 260);
}

body {
    font-family: sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

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

.lotto-machine {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.number-display {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.lotto-ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
}

#generate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

#generate-btn:hover {
    background-color: oklch(70% 0.25 260);
}

.history {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

#history-list li {
    padding: 1rem;
    border-bottom: 1px solid var(--secondary-color);
}

#history-list li:last-child {
    border-bottom: none;
}