:root {
    --bg-color: #f0f0f0;
    --text-color: #333;
    --container-bg: #fff; /* Optional if you want a card look, but sticking to simple for now */
    --button-bg: #4CAF50;
    --button-hover: #45a049;
    --button-text: white;
    --ball-bg: #f0f0f0; /* Default ball color same as bg in light mode? Maybe distinct */
    --ball-text: #333;
    --ball-shadow: rgba(0,0,0,0.2);
    --toggle-bg: #ccc;
    --toggle-circle: #fff;
}

body.dark-mode {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --button-bg: #bb86fc;
    --button-hover: #9b6dd3;
    --button-text: #000;
    --ball-bg: #1e1e1e;
    --ball-text: #e0e0e0;
    --ball-shadow: rgba(255,255,255,0.1); /* Lighter shadow for dark mode */
    --toggle-bg: #bb86fc;
    --toggle-circle: #121212;
}

body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    margin: 0; /* Reset default margin */
    position: relative; /* For absolute positioning of toggle */
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-color);
    padding: 10px;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.theme-toggle:hover {
    background-color: rgba(128, 128, 128, 0.2);
}

.container {
    text-align: center;
}

.lotto-numbers-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center; /* Ensure balls are centered */
    flex-wrap: wrap; /* Handle small screens */
}

#draw-button {
    padding: 10px 20px;
    font-size: 1.2em;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: var(--button-bg);
    color: var(--button-text);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: background-color 0.3s, box-shadow 0.3s;
}

#draw-button:hover {
    background-color: var(--button-hover);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}