:root {
            --soft-blue: #F0F7FF;
            --mid-blue: #D1E9FF;
            --accent-blue: #1A5F7A;
            --deep-text: #2C3E50;
            --glass-white: rgba(255, 255, 255, 0.8);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; 
            background-color: var(--soft-blue); 
            color: var(--deep-text);
            scroll-behavior: smooth;
        }

        /* Navigation */
        nav { 
            position: sticky; top: 0; z-index: 1000;
            background: var(--glass-white);
            backdrop-filter: blur(10px);
            padding: 15px 10%;
            display: flex; justify-content: space-between; align-items: center;
            border-bottom: 1px solid var(--mid-blue);
        }
        .logo { font-weight: bold; font-size: 1.5rem; color: var(--accent-blue); letter-spacing: 1px; }

        /* Hero Section */
        .hero {
            padding: 80px 10% 60px;
            display: flex; flex-direction: column; align-items: center; text-align: center;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--soft-blue) 100%);
        }
        .hero h1 { font-size: 3.5rem; font-weight: 300; margin-bottom: 20px; color: var(--accent-blue); }
        .hero p { max-width: 700px; font-size: 1.2rem; color: #5D6D7E; margin-bottom: 40px; line-height: 1.6; }
        .hero-img { 
            width: 100%; max-width: 900px; height: auto;
            filter: drop-shadow(0 20px 40px rgba(0,0,0,0.08));
            border-radius: 20px;
        }

        /* Stats Section */
        .stats-bar {
            display: grid; grid-template-columns: repeat(4, 1fr);
            gap: 20px; width: 80%; margin: -40px auto 80px;
            background: white; padding: 30px; border-radius: 15px;
            box-shadow: 0 10px 30px rgba(26, 95, 122, 0.1);
        }
        .stat-item h4 { color: var(--accent-blue); font-size: 1.8rem; margin-bottom: 5px; }
        .stat-item p { font-size: 0.9rem; color: #7F8C8D; text-transform: uppercase; }

        /* Features Section */
        .section { padding: 80px 10%; }
        .feature-row { display: flex; align-items: center; gap: 80px; margin-bottom: 120px; }
        .feature-row.reverse { flex-direction: row-reverse; }
        .feature-text { flex: 1; }
        .feature-text h2 { font-size: 2.5rem; margin-bottom: 25px; color: var(--accent-blue); font-weight: 400; }
        .feature-text p { font-size: 1.1rem; line-height: 1.8; color: #566573; margin-bottom: 20px; }
        
        /* Multi-Image Grid for Handpiece */
        .handpiece-grid {
            flex: 1.5;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .handpiece-grid img {
            width: 100%;
            height: auto;
            background: white;
            border-radius: 20px;
            padding: 10px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
        }
        .handpiece-grid img:hover { transform: scale(1.03); }
        .full-width-feature { grid-column: span 2; }

        .feature-img-single { 
            flex: 1.2; background: white; border-radius: 30px; 
            padding: 20px; box-shadow: inset 0 0 50px var(--soft-blue); 
            text-align: center; 
        }
        .feature-img-single img { width: 100%; height: auto; border-radius: 15px; }

        /* Icon Grid */
        .icon-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px; margin-top: 50px;
        }
        .icon-card {
            background: white; padding: 40px; border-radius: 20px;
            transition: transform 0.3s; border: 1px solid var(--mid-blue);
        }
        .icon-card:hover { transform: translateY(-10px); background: var(--mid-blue); }
        .icon-card h3 { color: var(--accent-blue); margin-bottom: 15px; }

        /* CTA */
        .cta { 
            background: var(--accent-blue); color: white; padding: 80px 10%; text-align: center; 
            border-radius: 40px 40px 0 0;
        }
        .btn-main {
            background: white; color: var(--accent-blue); padding: 18px 50px;
            border-radius: 35px; text-decoration: none; font-weight: bold;
            display: inline-block; transition: 0.3s;
        }
        .btn-main:hover { background: var(--mid-blue); transform: scale(1.05); }

        /* Responsive */
        @media (max-width: 992px) {
            .feature-row, .feature-row.reverse { flex-direction: column; text-align: center; gap: 40px; }
            .hero h1 { font-size: 2.8rem; }
            .stats-bar { grid-template-columns: repeat(2, 1fr); width: 95%; }
        }