:root {
    --bg-color: #f4f6f8;
    --text-color: #333;
    --ball-bg: #4a90e2;
    --ball-text: #ffffff;
    --btn-bg: #4a90e2;
    --btn-hover: #357abd;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f4f6f8;
    --ball-bg: #e67e22;
    --ball-text: #ffffff;
    --btn-bg: #e67e22;
    --btn-hover: #d35400;
}

body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: var(--bg-color);
    color: var(--text-color);
    padding-top: 80px;
    transition: background 0.3s, color 0.3s;
}

h1 {
    color: var(--text-color);
}

.set {
    margin: 15px 0;
}

.ball {
    display: inline-block;
    width: 45px;
    height: 45px;
    line-height: 45px;
    margin: 5px;
    border-radius: 50%;
    background: var(--ball-bg);
    color: var(--ball-text);
    font-weight: bold;
    transition: background 0.3s;
}

button {
    margin-top: 30px;
    padding: 15px 30px;
    font-size: 18px;
    border: none;
    border-radius: 8px;
    background: var(--btn-bg);
    color: white;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: var(--btn-hover);
}

/* Contact Form Styles */
.contact-container {
    margin-top: 50px;
    padding: 20px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .contact-container {
    border-color: rgba(255, 255, 255, 0.1);
}

.contact-container h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    box-sizing: border-box;
}

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

.submit-btn {
    width: 100%;
    margin-top: 10px !important;
}

#theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    font-size: 14px;
    margin-top: 0;
}