:root {
    --fi-dark: #3f4b5c;
    --fi-dark-2: #556273;
    --fi-accent: #198754;
    --fi-text: #1f2937;
    --fi-muted: #6b7280;
    --fi-border: #e5e7eb;
    --fi-bg-soft: #f8fafc;
}

body {
    color: var(--fi-text);
    font-family: Arial, Helvetica, sans-serif;
    background: #fff;
}

a {
    text-decoration: none;
}

.section {
    padding: 3.5rem 0;
}

/* Navbar */
.navbar {
    --bs-navbar-padding-y: 0.9rem;
    backdrop-filter: blur(10px);
    background: rgba(63, 75, 92, 0.92);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-label {
    color: #fff;
    font-size: 1.25rem;
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.92);
    font-weight: 600;
    padding: 0.65rem 0.9rem;
    border-radius: 10px;
    transition: 0.2s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}

/* Shared cards */
.sidebar-sticky {
    position: sticky;
    top: 6rem;
}

.footer-card {
    background: #fff;
    border: 1px solid var(--fi-border);
    border-radius: 1.25rem;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-list li {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    padding: 0.35rem 0;
    color: #374151;
}

.info-list i {
    color: var(--fi-accent);
    margin-top: 0.15rem;
    flex: 0 0 auto;
}

/* Buttons */
.btn-lg {
    border-radius: 0.9rem;
}

/* Footer */
.footer {
    background: #1f2937;
    color: #d1d5db;
    padding-top: 4rem;
}

.footer a {
    color: #fff;
}

.footer .muted {
    color: #9ca3af;
}

.footer-card {
    padding: 1.25rem;
    height: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    margin-bottom: 1rem;
    transition: transform 0.2s ease;
}

.product-link {
    color: inherit;
    display: block;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.product-link:hover {
    color: inherit;
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.15);
}

.product-link:hover .footer-logo {
    transform: scale(1.05);
}

.footer-bottom {
    margin-top: 3rem;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #9ca3af;
}

/* Responsive */
@media (max-width: 991.98px) {
    .sidebar-sticky {
        position: static;
    }
}