*{
            margin:0;
            padding:0;
            box-sizing:border-box;
            font-family:Arial,sans-serif;
        }

        body{
            background:#f4f7fb;
            color:#111827;
        }

        /* HERO */
        .hero{
            width:100%;
            min-height:85vh;
            background:
            linear-gradient(rgba(15,23,42,0.75),rgba(15,23,42,0.75)),
            url('https://images.unsplash.com/photo-1504307651254-35680f356dfd');
            background-size:cover;
            background-position:center;
            display:flex;
            align-items:center;
            justify-content:center;
            text-align:center;
            padding:20px;
        }

        .hero-content{
            max-width:850px;
            color:white;
        }

        .hero-content span{
            background:rgba(255,255,255,0.15);
            padding:10px 22px;
            border-radius:40px;
            display:inline-block;
            margin-bottom:25px;
        }

        .hero-content h1{
            font-size:60px;
            margin-bottom:25px;
        }

        .hero-content p{
            line-height:1.9;
            font-size:18px;
            margin-bottom:35px;
        }

        .hero-btn{
            background:#2563eb;
            color:white;
            text-decoration:none;
            padding:15px 30px;
            border-radius:12px;
            display:inline-block;
        }

        /* SECTION */
        .section{
            padding:90px 20px;
            background:white;
        }

        .container{
            max-width:1300px;
            margin:auto;
        }

        .title{
            text-align:center;
            margin-bottom:60px;
        }

        .title h2{
            font-size:46px;
            margin-bottom:20px;
        }

        .title p{
            max-width:700px;
            margin:auto;
            color:#555;
            line-height:1.8;
        }

        /* GRID */
        .grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:30px;
        }

        .card{
            background:#f8fafc;
            padding:35px 25px;
            border-radius:25px;
            text-align:center;
            transition:0.4s;
        }

        .card:hover{
            transform:translateY(-10px);
            background:#eff6ff;
        }

        .card i{
            font-size:45px;
            margin-bottom:20px;
            display:block;
        }

        .card h3{
            margin-bottom:15px;
            font-size:24px;
        }

        .card p{
            color:#555;
            line-height:1.7;
        }

        /* LAB */
        .lab-grid{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:30px;
        }

        .lab-card{
            position:relative;
            overflow:hidden;
            border-radius:25px;
            height:350px;
        }

        .lab-card img{
            width:100%;
            height:100%;
            object-fit:cover;
        }

        .overlay{
            position:absolute;
            inset:0;
            background:linear-gradient(transparent,rgba(0,0,0,0.8));
            display:flex;
            align-items:flex-end;
            padding:25px;
        }

        .overlay h3{
            color:white;
            font-size:28px;
        }

        @media(max-width:992px){

            .grid,
            .lab-grid{
                grid-template-columns:1fr 1fr;
            }

            .hero-content h1{
                font-size:44px;
            }
        }

        @media(max-width:768px){

            .grid,
            .lab-grid{
                grid-template-columns:1fr;
            }

            .hero-content h1{
                font-size:32px;
            }

            .title h2{
                font-size:32px;
            }

            .section{
                padding:70px 15px;
            }
        }