:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --ball-bg: #eeeeee;
    --ball-text: #333333;
    --button-bg: #f0f0f0;
    --button-text: #333333;
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --ball-bg: #333333;
    --ball-text: #ffffff;
    --button-bg: #444444;
    --button-text: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    padding: 50px 20px;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.contact-section {
    margin-top: 50px;
    width: 100%;
    max-width: 400px;
    background-color: var(--ball-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.contact-section h2 {
    margin-top: 0;
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    background-color: var(--bg-color);
    color: var(--text-color);
    box-sizing: border-box;
    font-family: inherit;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

#contact-form button {
    width: 100%;
    margin-top: 10px;
}

.comments-section {
    width: 100%;
    max-width: 800px;
    margin-top: 50px;
    padding-bottom: 50px;
}

#theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
}