body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f3f6f9;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #e3f2fd;
    text-align: center;
    padding: 30px 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo {
    width: 350px;
    max-width: 90%;
    margin: 10px 0;
    border-radius: 12px;
}

nav {
    background-color: #1976d2;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 12px 0;
    gap: 20px;
}

nav a {
    color: #fff;
    padding: 10px 20px;
    background-color: #1565c0;
    text-decoration: none;
    font-weight: 600;
    border-radius: 6px;
    transition: background 0.3s ease;
}

nav a:hover {
    background-color: #0d47a1;
}

.section {
    padding: 30px 20px;
    margin: 20px auto;
    background-color: #ffffff;
    border-radius: 12px;
    max-width: 1000px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.section h2 {
    color: #0d47a1;
    margin-bottom: 15px;
}

ul {
    list-style: none;
    padding-left: 0;
}

ul li::before {
    content: "✔ ";
    color: green;
    font-weight: bold;
}

form input, form button {
    margin: 10px 0;
    padding: 10px;
    width: 100%;
    max-width: 500px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 16px;
}

form button {
    background-color: #388e3c;
    color: white;
    font-weight: bold;
    cursor: pointer;
    border: none;
    transition: background 0.3s;
}

form button:hover {
    background-color: #2e7d32;
}

footer {
    background-color: #e0e0e0;
    padding: 20px;
    font-size: 13px;
    text-align: center;
    color: #555;
    margin-top: 40px;
}

.profile-img {
    float: right;
    width: 160px;
    margin-left: 20px;
    border-radius: 10px;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

button {
    padding: 12px 24px;
    margin: 10px 5px;
    font-size: 16px;
    border-radius: 6px;
    background-color: #00897b;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background-color: #00695c;
}

@media screen and (max-width: 768px) {
    .profile-img {
        float: none;
        display: block;
        margin: 0 auto 20px auto;
    }
    nav {
        flex-direction: column;
        align-items: center;
    }
}