:root {
    --background-color: #f0f0f0;
    --container-background: #ffffff;
    --main-text-color: #333;
    --button-background: #4CAF50;
    --button-text-color: white;
    --ball-color-1: #f44336;
    --ball-color-2: #ff9800;
    --ball-color-3: #ffeb3b;
    --ball-color-4: #4caf50;
    --ball-color-5: #2196f3;
    --ball-color-6: #9c27b0;
    --toggle-bg: #eee;
    --toggle-color: #333;
    --bg-gradient: linear-gradient(to right top, #d16ba5, #c777b9, #ba83ca, #aa8fd8, #9a9ae1, #8aa7ec, #79b3f4, #69bff8, #52cffe, #41dfff, #46eefa, #5ffbf1);
}

[data-theme="dark"] {
    --background-color: #121212;
    --container-background: #1e1e1e;
    --main-text-color: #f5f5f5;
    --button-background: #3700b3;
    --button-text-color: white;
    --toggle-bg: #333;
    --toggle-color: #f5f5f5;
    --bg-gradient: linear-gradient(to right top, #051937, #004d7a, #008793, #00bf72, #a8eb12);
}

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: var(--bg-gradient);
    transition: background-image 0.5s ease;
}

lotto-generator {
    display: block;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

#theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    border-radius: 20px;
    border: none;
    background: var(--toggle-bg);
    color: var(--toggle-color);
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    z-index: 1000;
}

#theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0,0,0,0.2);
}