:root {
    --brand-primary: #1da263;
    --brand-soft: #e9f8ef;
    --brand-dark: #147145;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #f5fff8 0%, #ecfbf1 55%, #e4f7eb 100%);
}

.page-shell {
    max-width: 1540px;
}

.offer-card {
    border: 0;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.contact-card {
    border: 1px solid #d2efdd;
    background: linear-gradient(180deg, #ffffff 0%, #f4fcf7 100%);
}

.offer-topbar {
    border: 0; 
}

.topbar-logo {
    width: 80px;
    height: 80px; 
    display: inline-flex;
    align-items: center;
    justify-content: center; 
    overflow: hidden;
    flex-shrink: 0;
}

.topbar-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.offer-number {
    font-weight: 700;
    font-size: 1.25rem;
    text-align: center;
    color: #0f2d1e;
}

.offer-slogan {
    text-align: right;
    font-weight: 600;
    color: #334155;
}

.offer-slogan .brand-word {
    color: var(--brand-primary);
}

.sidebar-card {
    position: sticky;
    top: 24px;
    border-radius: 1rem;
    border: 0;
    box-shadow: 0 18px 34px rgba(20, 113, 69, 0.16);
}

.sidebar-contact-card {
    border-radius: 1rem;
    border: 1px solid #d2efdd;
    box-shadow: 0 12px 24px rgba(20, 113, 69, 0.1);
    background: #fff;
}

.sidebar-title {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #6b7280;
    margin-bottom: 0.75rem;
}

.offer-tabs .nav-link {
    text-align: left;
    border-radius: 0.4rem;
    padding: 0.85rem 0.95rem;
    color: #133252;
    font-weight: 600;
    border: none;
    margin-bottom: 0.45rem;
}

.offer-tabs .nav-link:hover {
    background: #f2fbf6;
    border-color: #cfeedd;
}

.offer-tabs .nav-link.active {
    background: var(--brand-primary);
    color: #fff;
    border-color: var(--brand-primary);
}

.btn-primary {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--brand-dark);
    border-color: var(--brand-dark);
}

a {
    color: var(--brand-primary);
}

a:hover {
    color: var(--brand-dark);
}

.tab-pane-card {
    border: 0;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.tab-content pre {
    max-height: 380px;
    overflow: auto;
}

@media (max-width: 991.98px) {
    .sidebar-card {
        position: static;
    }

    .offer-slogan {
        text-align: left;
    }

    .offer-number {
        text-align: left;
    }
}