body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f7f9fb;
    color: #222;
}

.logo {
    height: 48px;
    width: auto;
}

.hero {
    background: linear-gradient( rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65) ), url("../images/exploration-and-drilling.jpg");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    color: #fff;
    padding: 120px 0;
    min-height: 550px;
    display: flex;
    align-items: center;
}

.section-title {
    font-weight: 700;
    color: #0b2c45;
}

.card {
    border: none;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.btn-primary {
    background: #0b5c8a;
    border-color: #0b5c8a;
}

    .btn-primary:hover {
        background: #083f60;
        border-color: #083f60;
    }

.footer a {
    text-decoration: none;
}

.contact-box {
    background: #ffffff;
    padding: 25px;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}
.about-image {
    border-radius: 24px;
    max-width: 100%;
    width: 850px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    border: 4px solid #ffffff;
}