@import url('https://fonts.googleapis.com/css2?family=Nanum+Gothic:wght@400;700;800&display=swap');

:root {
    --background-color: #f0f0f0;
    --card-background: #ffffff;
    --title-color: #333;
    --button-bg: #4CAF50;
    --button-text-color: white;
    --ball-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

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

.lotto-machine {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    text-align: center;
}

.title {
    color: var(--title-color);
    margin-bottom: 2rem;
    font-weight: 800;
}

.number-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 2rem;
    min-height: 60px;
}

.ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
    box-shadow: var(--ball-shadow);
    transition: all 0.3s ease;
}

.generate-btn {
    background-color: var(--button-bg);
    color: var(--button-text-color);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.generate-btn:hover {
    background-color: #45a049;
}