body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background: oklch(0.2 0.02 230);
}

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

h1 {
    color: #333;
    margin-bottom: 1.5rem;
}

#generate-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

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

.lotto-numbers-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 2rem;
    flex-wrap: wrap;
}

lotto-ball {
    --ball-color: #4CAF50;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--ball-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

#previous-numbers-container {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

#previous-numbers {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.previous-number-set {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.form-container {
    margin-top: 2rem;
    padding-top: 1rem;
    text-align: left;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="email"] {
    width: calc(100% - 20px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

.form-submit-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin-top: 1rem;
    cursor: pointer;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    width: auto;
}

.form-submit-btn:hover {
    background-color: #0056b3;
}

.back-link {
    display: block;
    margin-top: 1rem;
    text-align: center;
    color: #007bff;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

.language-switcher-container {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 100;
}

#language-switcher {
    padding: 8px 12px;
    border-radius: 5px;
    border: 1px solid #ccc;
    background-color: white;
    cursor: pointer;
    font-size: 14px;
}