body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #243d63;
}

.topbar {
    height: 50px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 120px;
}

.logo {
    font-weight: bold;
    color: #333;
}

.signin {
    background: #0d6efd;
    color: #fff;
    padding: 8px 20px;
    border-radius: 4px;
    text-decoration: none;
}

.form-wrapper {
    max-width: 720px;
    margin: 40px auto 70px;
    background: #fff;
    padding: 22px;
    border-radius: 5px;
}

h2 {
    text-align: center;
    font-weight: 400;
    border-bottom: 2px solid #1683ff;
    padding-bottom: 12px;
}

.section-title {
    background: #91aae5;
    color: #1f2937;
    padding: 12px;
    border-radius: 4px;
    margin: 25px 0 15px;
    font-size: 18px;
}

.line {
    border-top: 2px solid #1683ff;
    margin: 25px 0 10px;
}

label {
    display: block;
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 6px;
}

input,
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 3px;
    box-sizing: border-box;
    max-width: 100%;
}

.small-btn {
    background: #0d6efd;
    color: white;
    border: none;
    padding: 12px 18px;
    margin-bottom: 8px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 240px;
    max-width: 100%;
    font-size: 15px;
    font-weight: 500;
}

.submit-btn {
    background: #0d6efd;
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    cursor: pointer;
}

.required {
    color: red;
    font-size: 12px;
    margin-top: 5px;
}

footer {
    background: #1f293d;
    color: #cbd5e1;
    padding: 50px 140px;
    font-size: 13px;
}

    footer h4 {
        color: #fff;
        margin-top: 0;
    }

.bottom {
    background: #111827;
    color: #aaa;
    text-align: center;
    padding: 18px;
    font-size: 12px;
}

#previewImg {
    display: none;
    width: 120px;
    border-radius: 6px;
}

@media(max-width:768px) {

    .topbar {
        padding: 0 20px;
    }

    .form-wrapper {
        margin: 15px;
        padding: 16px;
    }

    footer {
        padding: 30px;
    }

    .small-btn {
        width: 100%;
    }

    select {
        font-size: 14px;
    }
}