:root {
    --primary-color: #FF5733;
    --secondary-color: #FFC300;
    --bonus-color: #4CAF50; /* Green for bonus */
    --background-color: #f0f0f0;
    --text-color: #333;
    --white: #fff;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-image: linear-gradient(to right top, #d16ba5, #c777b9, #ba83ca, #aa8fd8, #9a9ae1, #8aa7ec, #79b3f4, #69bff8, #52cffe, #41dfff, #46eefa, #5ffbf1);
}

main {
    text-align: center;
}

.lotto-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.numbers-container, .bonus-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.number, .bonus-number {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.number {
    background-color: var(--secondary-color);
}

.bonus-number {
    background-color: var(--bonus-color);
}

#generate-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

#generate-btn:hover {
    background-color: #e64a19;
    transform: scale(1.05);
}

body.dark {
    --background-color: #333;
    --text-color: #f0f0f0;
    --white: #444;
    --primary-color: #FFC300;
    --secondary-color: #FF5733;
}

#theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

#theme-toggle:hover {
    transform: scale(1.2);
}