body.product-fibern-bg {
            background-color: #120C0A;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(230, 126, 34, 0.12) 0%, transparent 45%),
                radial-gradient(circle at 90% 80%, rgba(241, 196, 15, 0.08) 0%, transparent 50%);
            color: #F5ECE8;
            
            --color-bg-dark: #120C0A;
            --color-bg-card: rgba(28, 19, 16, 0.75);
            --color-bg-card-hover: rgba(40, 27, 23, 0.85);
            
            --color-gold-rose: #E67E22; 
            --color-gold-light: #F5CBA7; 
            --color-gold-accent: #E67E22; 
            
            --color-text-light: #F5ECE8;
            --color-text-muted: #C7B5AB;
            
            --glass-border: 1px solid rgba(230, 126, 34, 0.2);
            --glass-shadow: 0 15px 35px rgba(230, 126, 34, 0.08);
            --glass-shadow-hover: 0 20px 45px rgba(230, 126, 34, 0.18);
        }
        
        body.product-fibern-bg .main-header {
            background-color: rgba(18, 12, 10, 0.85);
            border-bottom: 1px solid rgba(230, 126, 34, 0.15);
        }
        
        body.product-fibern-bg .contact-link { color: #C7B5AB; }
        body.product-fibern-bg .contact-link:hover { color: #E67E22; }
        body.product-fibern-bg .nav-tab-btn { color: #C7B5AB; border-color: rgba(230, 126, 34, 0.2); }
        body.product-fibern-bg .nav-tab-btn:hover { color: #E67E22; }
        body.product-fibern-bg .nav-tab-btn.active {
            background: linear-gradient(135deg, #E67E22, #F39C12);
            color: white;
        }
        body.product-fibern-bg .dropdown-menu {
            background-color: rgba(28, 19, 16, 0.95);
            border: 1px solid rgba(230, 126, 34, 0.25);
        }
        body.product-fibern-bg .dropdown-menu a { color: #C7B5AB; }
        body.product-fibern-bg .dropdown-menu a:hover { color: #E67E22; background-color: rgba(230, 126, 34, 0.08); }
        
        body.product-fibern-bg .btn-whatsapp-header,
        body.product-fibern-bg .btn-primary,
        body.product-fibern-bg .btn-package-featured,
        body.product-fibern-bg .btn-whatsapp-footer {
            background: linear-gradient(135deg, #E67E22, #D35400);
            color: white;
            border: none;
        }
        body.product-fibern-bg .btn-whatsapp-header:hover,
        body.product-fibern-bg .btn-primary:hover,
        body.product-fibern-bg .btn-package-featured:hover,
        body.product-fibern-bg .btn-whatsapp-footer:hover {
            box-shadow: 0 5px 15px rgba(230, 126, 34, 0.4);
            transform: translateY(-2px);
            color: white;
        }
        body.product-fibern-bg .badge {
            background: rgba(230, 126, 34, 0.15);
            color: #F5CBA7;
            border: 1px solid rgba(230, 126, 34, 0.3);
        }
        body.product-fibern-bg .price-value { color: #E67E22; }
        body.product-fibern-bg .feature-icon-wrapper {
            background: rgba(230, 126, 34, 0.1);
            color: #E67E22;
        }
        body.product-fibern-bg .ingredient-badge {
            background: rgba(230, 126, 34, 0.1);
            color: #F5CBA7;
            border: 1px solid rgba(230, 126, 34, 0.25);
        }
        body.product-fibern-bg .step-number {
            background: rgba(230, 126, 34, 0.2);
            color: #F5CBA7;
        }
        body.product-fibern-bg .step-icon-wrapper {
            color: #E67E22;
        }
        body.product-fibern-bg .btn-replay-animation {
            background: rgba(230, 126, 34, 0.15);
            color: #F5CBA7;
            border: 1px solid rgba(230, 126, 34, 0.3);
        }
        body.product-fibern-bg .btn-replay-animation:hover {
            background: #E67E22;
            color: white;
        }
        body.product-fibern-bg .btn-package {
            border: 1px solid rgba(230, 126, 34, 0.3);
            color: #F5CBA7;
        }
        body.product-fibern-bg .btn-package:hover {
            background: rgba(230, 126, 34, 0.08);
        }
        body.product-fibern-bg .glow-ring {
            background: radial-gradient(circle, rgba(230, 126, 34, 0.15) 0%, transparent 70%);
        }
        body.product-fibern-bg .package-card.featured {
            border-color: rgba(230, 126, 34, 0.4);
            box-shadow: 0 10px 30px rgba(230, 126, 34, 0.15);
        }
        body.product-fibern-bg .featured-badge {
            background: linear-gradient(135deg, #E67E22, #F39C12);
            color: white;
        }
        body.product-fibern-bg .info-card-hero h1 { color: white; }
        body.product-fibern-bg .card-title-meta h3 { color: white; }
        body.product-fibern-bg .feature-card h3 { color: white; }
        body.product-fibern-bg .use-step-card h3 { color: white; }
        body.product-fibern-bg .package-card h3 { color: white; }
        body.product-fibern-bg .expert-tip-box strong { color: #F5CBA7; }