body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #fafbfc;
    color: #222;
}
header {
    background: #274472;
    color: #fff;
    padding: 30px 0 20px 0;
    text-align: center;
}
.avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 10px;
}
nav {
    margin-top: 12px;
}
nav a {
    color: #d6e9ff;
    margin: 0 12px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.08em;
}
nav a:hover {
    text-decoration: underline;
}
main {
    max-width: 700px;
    margin: 40px auto 0 auto;
    background: #fff;
    box-shadow: 0 4px 14px rgba(20,60,100,0.04);
    padding: 32px 24px;
    border-radius: 15px;
}
section {
    margin-bottom: 40px;
}
h2 {
    color: #274472;
    margin-bottom: 15px;
}
.projects {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}
.project {
    background: #f3f6fa;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(20,80,160,0.06);
    padding: 15px;
    width: 200px;
    text-align: center;
}
.project img {
    max-width: 100%;
    border-radius: 7px;
}
footer {
    margin-top: 32px;
    padding: 18px;
    background: #222;
    color: #fff;
    text-align: center;
    font-size: 0.95em;
}
form input, form textarea {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #b3c3dd;
    border-radius: 6px;
    font-size: 1em;
    background: #f7fafd;
    resize: none;
}
form button {
    background: #274472;
    color: #fff;
    font-weight: 600;
    border: none;
    padding: 10px 26px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
}
form button:hover {
    background: #416bb1;
}
#response {
    color: #257f41;
    font-weight: 500;
}

@media (max-width: 800px) {
    main {
        max-width: 100%;
        margin: 20px 10px 0 10px;
        padding: 15px 7px;
    }
    .projects {
        flex-direction: column;
        gap: 10px;
    }
    .project {
        width: 100%;
    }
}