/* ==========================
           GLOBAL
        ========================== */
        body {
            font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            color: #111827;
        }

        /* ==========================
           NAVBAR (STICKY – NO ANIMATION)
        ========================== */
        .navbar {
            background: #ffffff;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .navbar .nav-link {
            font-weight: 500;
            color: #374151;
        }

        .navbar .nav-link.active,
        .navbar .nav-link:hover {
            color: #111827;
        }

        /* ==========================
           SECTION – WHAT WE DO
        ========================== */
        .linen-modern {
            padding: 6rem 0;
            background: linear-gradient(180deg, #fafafa 0%, #f3f4f6 100%);
        }

        .modern-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 600;
            letter-spacing: -0.5px;
        }

        .modern-title span {
            color: #6b7280;
            font-weight: 400;
        }

        .modern-lead {
            max-width: 720px;
            margin: 0 auto;
            font-size: 1.05rem;
            color: #6b7280;
            line-height: 1.7;
        }

        /* ==========================
           EXPERTISE CARD CONTAINER
        ========================== */
        .expertise-card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(16px);
            border-radius: 20px;
            padding: 3rem;
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 25px 60px rgba(0, 0, 0, 0.08);
        }

        .expertise-label {
            font-size: 0.85rem;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: #9ca3af;
            margin-bottom: 2rem;
        }

        /* ==========================
           3D EXPERTISE CARDS
        ========================== */
        .expertise-3d-card {
            height: 100%;
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem;
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.35s ease;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
        }

        .expertise-3d-card:hover {
            transform: translateY(-10px) scale(1.03);
            box-shadow: 0 40px 80px rgba(0, 0, 0, 0.15);
        }

        .expertise-3d-card h6 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .expertise-3d-card p {
            font-size: 0.95rem;
            color: #6b7280;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ==========================
           FOOTER
        ========================== */
        .footer {
            background: #f57c00;
            color: #ffffff;
            padding: 1.5rem 0;
            text-align: center;
        }

        /* ==========================
           BACK TO TOP
        ========================== */
        .back-to-top {
            position: fixed;
            bottom: 25px;
            right: 25px;
            z-index: 999;
        }