:root {
            --contact-blue: #1e40af;
            --contact-indigo: #4f46e5;
            --contact-purple: #7c3aed;
            --contact-cyan: #06b6d4;
            --contact-teal: #14b8a6;
            --contact-gold: #d4af37;
            --contact-green: #10b981;
        }

        /* Contact Section Background */
        #contact-us {
            background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%);
            position: relative;
            overflow: hidden;
            min-height: 100vh;
        }

        #contact-us::before {
            content: '';
            position: absolute;
            width: 900px;
            height: 900px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.12), transparent);
            border-radius: 50%;
            top: -450px;
            left: 50%;
            transform: translateX(-50%);
            animation: float-contact 28s ease-in-out infinite;
        }

        #contact-us::after {
            content: '';
            position: absolute;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.1), transparent);
            border-radius: 50%;
            bottom: -350px;
            right: -350px;
            animation: float-contact 24s ease-in-out infinite reverse;
        }

        @keyframes float-contact {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(-70px); }
        }

        /* Section Title */
        .contact-title {
            background: linear-gradient(135deg, var(--contact-cyan) 0%, var(--contact-indigo) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: shine-contact 3s ease-in-out infinite;
        }

        @keyframes shine-contact {
            0%, 100% { filter: brightness(1); }
            50% { filter: brightness(1.35); }
        }

        /* Title Underline */
        .contact-underline {
            width: 150px;
            height: 5px;
            background: linear-gradient(90deg, var(--contact-cyan), var(--contact-indigo), var(--contact-cyan));
            position: relative;
            overflow: hidden;
        }

        .contact-underline::before {
            content: '';
            position: absolute;
            width: 50%;
            height: 100%;
            background: rgba(255, 255, 255, 0.8);
            animation: slide-contact 2.5s ease-in-out infinite;
        }

        @keyframes slide-contact {
            0% { left: -50%; }
            100% { left: 150%; }
        }

        /* Contact Cards */
        .contact-card {
            background: white;
            border: 2px solid transparent;
            transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
        }

        .contact-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.1), transparent);
            transition: left 0.7s;
        }

        .contact-card:hover::before {
            left: 100%;
        }

        .contact-card:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 30px 70px rgba(6, 182, 212, 0.3) !important;
            border-color: var(--contact-cyan);
        }

        /* Patent Holder Card Special */
        .patent-holder-contact {
            border: 3px solid var(--contact-gold) !important;
        }

        .patent-holder-contact:hover {
            border-color: var(--contact-gold) !important;
            box-shadow: 0 30px 70px rgba(212, 175, 55, 0.4) !important;
        }

        /* Crown Badge */
        .crown-badge {
            position: absolute;
            top: -25px;
            right: 20px;
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--contact-gold), #b8941f);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
            animation: pulse-crown 2.5s ease-in-out infinite;
            z-index: 10;
        }

        @keyframes pulse-crown {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.12); }
        }

        .crown-badge i {
            font-size: 1.8rem;
            color: white;
        }

        /* Contact Info Item */
        .contact-info-item {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            border-left: 5px solid var(--contact-cyan);
            padding: 15px 20px;
            margin-bottom: 15px;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .contact-info-item:hover {
            background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
            transform: translateX(10px);
            box-shadow: 0 8px 20px rgba(6, 182, 212, 0.2);
        }

        .contact-info-item a {
            color: var(--contact-indigo);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .contact-info-item a:hover {
            color: var(--contact-cyan);
            text-decoration: underline;
        }

        .contact-icon {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--contact-cyan), var(--contact-indigo));
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* Map Container */
        .map-container {
            position: relative;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 15px 40px rgba(6, 182, 212, 0.3);
            transition: all 0.4s ease;
        }

        .map-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 50px rgba(6, 182, 212, 0.4);
        }

        .map-container iframe {
            border: none;
            border-radius: 15px;
        }

        /* Name Badge */
        .name-badge {
            background: linear-gradient(135deg, var(--contact-cyan), var(--contact-indigo));
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            display: inline-block;
            font-size: 1.3rem;
            font-weight: 800;
            box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
            margin-bottom: 20px;
            animation: pulse-name 2.5s ease-in-out infinite;
        }

        .name-badge-gold {
            background: linear-gradient(135deg, var(--contact-gold), #b8941f);
            box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
        }

        @keyframes pulse-name {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        /* Role Badge */
        .role-badge {
            background: rgba(6, 182, 212, 0.1);
            color: var(--contact-cyan);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 15px;
        }

        .role-badge-gold {
            background: rgba(212, 175, 55, 0.1);
            color: var(--contact-gold);
        }

        /* Decorative Elements */
        .decoration-shape {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.08), transparent);
            animation: float-decoration 22s ease-in-out infinite;
        }

        @keyframes float-decoration {
            0%, 100% { transform: translate(0, 0) rotate(0deg); }
            33% { transform: translate(40px, -40px) rotate(120deg); }
            66% { transform: translate(-40px, 40px) rotate(240deg); }
        }

        /* Responsive */
        @media (max-width: 768px) {
            .crown-badge {
                width: 50px;
                height: 50px;
                top: -20px;
                right: 15px;
            }

            .crown-badge i {
                font-size: 1.4rem;
            }

            .name-badge {
                font-size: 1.1rem;
                padding: 10px 24px;
            }

            .contact-info-item {
                padding: 12px 15px;
            }
        }

        /* Smooth Scroll */
        html {
            scroll-behavior: smooth;
        }