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

    body{
      background:#f5f7fb;
      color:#222;
    }

    /* NAVBAR */

    nav{
      position:fixed;
      top:0;
      width:100%;
      background:#ffffff;
      box-shadow:0 2px 10px rgba(0,0,0,0.08);
      z-index:1000;
    }

    .nav-container{
      max-width:1200px;
      margin:auto;
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:18px 20px;
    }

    .logo{
      font-size:1.6rem;
      font-weight:bold;
      color:#ff5a36;
    }

    .nav-links{
      display:flex;
      gap:25px;
      list-style:none;
    }

    .nav-links a{
      text-decoration:none;
      color:#333;
      font-weight:600;
      transition:0.3s;
    }

    .nav-links a:hover{
      color:#ff5a36;
    }

    /* HERO */

    .hero{
      margin-top:90px;
      height:55vh;
      background:linear-gradient(
        rgba(0,0,0,0.45),
        rgba(0,0,0,0.45)
      ),
      url('https://images.unsplash.com/photo-1445205170230-053b83016050?q=80&w=1400&auto=format&fit=crop');
      
      background-size:cover;
      background-position:center;
      display:flex;
      justify-content:center;
      align-items:center;
      text-align:center;
      color:white;
      padding:20px;
    }

    .hero-content h1{
      font-size:3rem;
      margin-bottom:15px;
    }

    .hero-content p{
      font-size:1.1rem;
      margin-bottom:20px;
    }

    .btn{
      display:inline-block;
      padding:12px 28px;
      background:#ff5a36;
      color:white;
      text-decoration:none;
      border-radius:8px;
      font-weight:bold;
      transition:0.3s;
    }

    .btn:hover{
      background:#e64b29;
      transform:translateY(-2px);
    }

    /* PRODUTOS */

    .products{
      max-width:1200px;
      margin:60px auto;
      padding:0 20px;
    }

    .section-title{
      text-align:center;
      margin-bottom:40px;
    }

    .section-title h2{
      font-size:2.3rem;
      color:#1d3557;
    }

    .product-grid{
      display:grid;
      grid-template-columns:repeat(auto-fit, minmax(250px,1fr));
      gap:25px;
    }

    .card{
      background:white;
      border-radius:14px;
      overflow:hidden;
      box-shadow:0 4px 12px rgba(0,0,0,0.08);
      transition:0.3s;
    }

    .card:hover{
      transform:translateY(-6px);
      box-shadow:0 10px 18px rgba(0,0,0,0.12);
    }

    .card img{
      width:100%;
      height:280px;
      object-fit:cover;
    }

    .card-content{
      padding:18px;
    }

    .card-content h3{
      margin-bottom:10px;
      font-size:1.1rem;
    }

    .price{
      color:#fff;
      font-size:1.3rem;
      font-weight:bold;
      margin-bottom:12px;
    }

    .buy-btn{
      width:100%;
      border:none;
      padding:12px;
      background:#1d3557;
      color:white;
      border-radius:8px;
      cursor:pointer;
      font-weight:bold;
      transition:0.3s;
    }

    .buy-btn:hover{
      background:#16304d;
    }

    /* FOOTER */

    footer{
      background:#1d3557;
      color:white;
      text-align:center;
      padding:25px;
      margin-top:60px;
    }

    /* RESPONSIVO */

    @media(max-width:768px){

      .nav-container{
        flex-direction:column;
        gap:15px;
      }

      .hero-content h1{
        font-size:2.1rem;
      }

      .hero{
        height:60vh;
      }
    }

    .whatsapp{
      position:fixed;
      bottom:20px;
      left:20px;
      width:70px;
      height:70px;
      border-radius:50%;
      background:#0055aa;
      display:flex;
      align-items:center;
      justify-content:center;
      color:white;
      font-size:35px;
      text-decoration:none;
      box-shadow:0 10px 20px rgba(0,0,0,0.3);
      animation:flutuar 4s infinite ease-in-out;
    }