body {
    font-family: Arial, sans-serif;
    background: #e6f2ff;
    margin: 0;
    padding: 0;
    color: #333;
}

header {
    background: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}

.circle-flag {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 20px auto;
    border: 3px solid #007bff;
}

.nav-buttons {
    text-align: center;
    margin-bottom: 20px;
}

.nav-buttons a {
    display: inline-block;
    margin: 10px;
    padding: 12px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background 0.3s ease;
}

.nav-buttons a:hover {
    background-color: #0056b3;
}

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

button {
    padding: 10px 15px;
    background: #0099cc;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin: 10px;
}

button:hover {
    background: #007399;
}

footer {
    margin-top: 40px;
    background-color: #007bff;
    color: white;
    text-align: center;
    padding: 15px 0;
    font-size: 14px;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

footer a:hover {
    text-decoration: none;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #e6f2ff;
    color: #333;
    transition: background 0.5s, color 0.5s;
}
header {
    background: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}
button {
    padding: 10px 15px;
    background: #0099cc;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
button:hover {
    background: #007399;
}
.dark-mode {
    background: #121212;
    color: #f4f4f4;
}
.circle-flag {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #003366;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin: 10px auto;
    display: block;
}