body {
    font-family: "Segoe UI", sans-serif;
    margin: 0;
    background: #f7f9fb;
    color: #333;
}

header {
    background: #003366;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
}

nav a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to right, #0055a5, #0088cc);
    color: white;
}

.hero button {
    margin-top: 15px;
    padding: 10px 20px;
    background: #ffcc00;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.services {
    padding: 40px 20px;
    background: white;
    text-align: center;
}

.service-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.service-item {
    background: #eef2f6;
    border-radius: 10px;
    width: 250px;
    padding: 15px;
}

.invoice {
    text-align: center;
    padding: 50px 20px;
    background: #e6eef8;
}

.invoice form {
    display: inline-flex;
    gap: 10px;
}

.invoice input {
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    width: 250px;
}

.invoice button {
    background: #003366;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 40px;
}