:root {
    --background-color: #f4f6f9;
    --lotto-machine-background: #ffffff;
    --text-color: #212529;
    --number-background: #e9ecef;
    --button-background: #007bff;
    --button-text: #ffffff;
    --button-hover: #0056b3;
    --shadow-color: rgba(0, 0, 0, 0.075);
    --header-background: #ffffff;
    --header-shadow: rgba(0, 0, 0, 0.05);
    --link-color: #007bff;
}

body[data-theme='dark'] {
    --background-color: #121212;
    --lotto-machine-background: #1e1e1e;
    --text-color: #e9ecef;
    --number-background: #343a40;
    --button-background: #343a40;
    --button-hover: #495057;
    --shadow-color: rgba(255, 255, 255, 0.05);
    --header-background: #1e1e1e;
    --header-shadow: rgba(255, 255, 255, 0.05);
    --link-color: #80bfff;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    transition: background-color 0.3s, color 0.3s;
    margin: 0;
    padding-top: 70px; /* Space for fixed header */
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
}

.site-header {
    width: 100%;
    background-color: var(--header-background);
    box-shadow: 0 2px 4px var(--header-shadow);
    padding: 0 20px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1001;
    display: flex;
    justify-content: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 960px;
    height: 70px;
}

.site-header .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
    text-decoration: none;
}

.site-header nav a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 20px;
    font-size: 1rem;
}

.intro-text, .page-content {
    text-align: center;
    max-width: 800px;
    margin-bottom: 30px;
}

.page-content {
    text-align: left;
}

.lotto-machine {
    background-color: var(--lotto-machine-background);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow-color);
    text-align: center;
    margin-bottom: 30px;
    width: 100%;
    max-width: 500px;
}

.numbers {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.number {
    width: 50px;
    height: 50px;
    background-color: var(--number-background);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 5px;
    font-size: 24px;
    font-weight: bold;
}

#draw-button {
    background-color: var(--button-background);
    color: var(--button-text);
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
}

#draw-button:hover {
    background-color: var(--button-hover);
}

#theme-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    padding: 10px 15px;
    border-radius: 8px;
    border: none;
    background-color: var(--button-background);
    color: var(--button-text);
    cursor: pointer;
    z-index: 1000;
}

.contact-form-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--lotto-machine-background);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 12px var(--shadow-color);
    width: 300px;
    z-index: 1000;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#contact-form label, #contact-form h2 {
    text-align: left;
    color: var(--text-color);
    font-weight: bold;
}

#contact-form input, #contact-form textarea {
    padding: 10px;
    border: 1px solid var(--number-background);
    border-radius: 5px;
    background-color: var(--background-color);
    color: var(--text-color);
    width: 100%;
    box-sizing: border-box;
}

#contact-form button {
    background-color: var(--button-background);
    color: var(--button-text);
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
}

#disqus_thread {
    margin-top: 20px;
    width: 100%;
    max-width: 800px;
}

.site-footer {
    width: 100%;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background-color: var(--lotto-machine-background);
    color: var(--text-color);
}

.site-footer a {
    color: var(--link-color);
    text-decoration: none;
}