body {
    background: #eef4f7;
    font-family: 'Segoe UI', sans-serif;
}

/* NAVIGATION */
.topbar {
    background: #0d8f8f;
    padding: 10px 25px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.navbar .nav-link {
    color: white !important;
    margin-left: 15px;
    font-weight: 500;
    font-size: 15px;
}

.navbar .dropdown-menu {
    border-radius: 10px;
    border-color: #dcecec;
}

.brand {
    color: white !important;
    font-size: 20px;
    font-weight: 700;
}

/* SIDEBARS */
.ad-left, .ad-right {
    width: 180px;
    position: fixed;
    top: 120px;
    z-index: 10;
}

.ad-left {
    left: 10px;
}

.ad-right {
    right: 10px;
}

.ad-label {
    text-align: center;
    color: #0d8f8f;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.ad-box-small {
    width: 180px;
    height: 600px;
    background: #f3f7f9;
    border: 1px dashed #8bb6c0;
    border-radius: 8px;
    text-align: center;
    padding-top: 250px;
    font-size: 13px;
    color: #7999a4;
}

/* MAIN CONTENT OFFSET */
.page-wrapper {
    padding: 30px;
}

@media (min-width: 1200px) {
    body {
        padding-left: 200px;
        padding-right: 200px;
    }
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 20px;
    background: #f8fafa;
    border-top: 1px solid #d9e2e7;
}

/* Shared calc button style + extra spacing to right */
.btn-calc {
    background: #0d8f8f !important;
    color: white !important;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 6px;
    letter-spacing: 0.5px;
    border: none;
    margin-right: 8px; /* << space between button and result box */
}

    .btn-calc:hover {
        background: #0c7a7a !important;
        color: #fff !important;
    }