body {
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    background-color: #f7f9fc;
    color: #212529;
    margin: 0;
    padding: 0;
}

#container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

form {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

a {
    color: #1e90ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

input[type="text"],
input[type="email"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0 20px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background-color: #fff;
    font-size: 14px;
}

input[type="submit"],
button,
.btn {
    background-color: #1e90ff;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px 20px;
    font-size: 14px;
    cursor: pointer;
}

input[type="submit"]:hover,
button:hover,
.btn:hover {
    background-color: #187bcd;
}

/* ✅ Responsive tweaks */
@media (max-width: 768px) {
    #container {
        padding: 10px;
    }

    form {
        padding: 15px;
    }

    input[type="submit"],
    button,
    .btn {
        width: 100%;
        padding: 12px;
    }

    h1, h2, h3 {
        font-size: 1.4em;
        text-align: center;
    }

    table {
        width: 100%;
        font-size: 14px;
    }

    .navigation {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
}