:root {
    --background-color: #ffffff;
    --text-color: #000000;
    --profile-border: #ddd;
    --link-color: #00bfff;
    --icon-opacity: 0.7;
}

[data-theme="dark"] {
    --background-color: #121212;
    --text-color: #ffffff;
    --profile-border: #333;
    --link-color: #4ecdc4;
    --icon-opacity: 0.8;
}

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

.container {
    text-align: center;
    padding: 20px;
}

h1 {
    font-size: 36px;
}

.location {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.description {
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto 30px;
    line-height: 1.5;
}

.social-icons img {
    width: 40px;
    height: 40px;
    margin: 0 10px;
    opacity: var(--icon-opacity);
    transition: opacity 0.3s ease;
}

.profile-img {
    width: 150px;
    height: 150px;
    border-radius: 100%;
    margin-bottom: 20px;
}

.social-icons img:hover {
    opacity: 1;
}

.footer {
    margin-top: 40px;
    font-size: 14px;
}

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

.footer a:hover {
    text-decoration: underline;
}

.toggle-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;

    width: 40px;
    height: 40px;
    margin: 0 10px;
    opacity: var(--icon-opacity);
    transition: opacity 0.3s ease;
}