body {
    font-family: 'Nanum Gothic', sans-serif;
    background-color: #f7f9fc;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(0,0,0,0.05) 1px, transparent 0);
    background-size: 20px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #333;
}

.container {
    text-align: center;
    background-color: #ffffff;
    padding: 50px 60px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 8, 42, 0.1), 0 5px 15px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-5px);
}


h1 {
    font-weight: 800;
    font-size: 2.5em;
    color: #1a237e;
    margin-bottom: 10px;
}

p {
    font-size: 1.1em;
    color: #555;
    margin-bottom: 40px;
}

#lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.number {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(145deg, #5c6bc0, #3f51b5);
    color: #ffffff;
    font-size: 2em;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 15px rgba(63, 81, 181, 0.3);
    transition: all 0.3s ease;
    border: 3px solid #ffffff;
}

.number:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 20px rgba(63, 81, 181, 0.4);
}

#generate-btn {
    background: linear-gradient(145deg, #ff7043, #f4511e);
    color: #ffffff;
    border: none;
    padding: 20px 40px;
    font-size: 1.2em;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 15px rgba(255, 112, 67, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#generate-btn:hover {
    background: linear-gradient(145deg, #f4511e, #ff7043);
    transform: translateY(-3px);
    box-shadow: 0 12px 20px rgba(255, 112, 67, 0.4);
}

#generate-btn:active {
    transform: translateY(1px);
    box-shadow: 0 4px 10px rgba(255, 112, 67, 0.3);
}