:root {
    --bg-color: #f4f4f9;
    --text-color: #333;
    --container-bg: #fff;
    --header-color: #555;
    --button-bg: #4CAF50;
    --button-hover-bg: #45a049;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --bg-color: #2c2c2c;
    --text-color: #f1f1f1;
    --container-bg: #424242;
    --header-color: #ccc;
    --button-bg: #5cb85c;
    --button-hover-bg: #4cae4c;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: background-color 0.3s;
}

h1 {
    margin-bottom: 15px;
    color: var(--header-color);
}

.theme-switcher {
    margin-bottom: 20px;
}

#theme-toggle {
    display: none;
}

#theme-toggle + label {
    cursor: pointer;
    font-size: 14px;
}

#generate-btn {
    background-color: var(--button-bg);
    color: white;
    border: none;
    padding: 15px 30px;
    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: var(--button-hover-bg);
}

.result-container {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    height: 50px; /* Pre-allocate space */
}

.lotto-ball {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-weight: bold;
    margin: 0 5px;
    box-shadow: 0 2px 5px var(--shadow-color);
}

/* Contact Form Styles */
.contact-form-container {
    margin-top: 40px;
    padding: 30px;
}

.contact-form-container h2 {
    color: var(--header-color);
    margin-bottom: 25px;
}

.contact-form-container form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 400px;
    margin: 0 auto;
}

.contact-form-container label {
    text-align: left;
    margin-bottom: -5px;
    color: var(--text-color);
    font-weight: bold;
    font-size: 14px;
}

.contact-form-container input[type="text"],
.contact-form-container input[type="email"],
.contact-form-container textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    background-color: var(--container-bg);
    color: var(--text-color);
    transition: border-color 0.3s;
}

.contact-form-container input[type="text"]:focus,
.contact-form-container input[type="email"]:focus,
.contact-form-container textarea:focus {
    border-color: var(--button-bg);
    outline: none;
}

.contact-form-container textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form-container button[type="submit"] {
    background-color: #007bff; /* A nice blue for submit */
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 10px;
}

.contact-form-container button[type="submit"]:hover {
    background-color: #0056b3;
}