* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Poppins', sans-serif;
      line-height: 1.6;
      color: #2c3e50;
      background-color: #f4f7f9;
    }

    /* NAVIGATION */
    nav {
      background-color: #ffffff;
      padding: 1rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .logo img {
      height: 60px;
      width: auto;
    }

    .nav-links {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .nav-links a {
      color: #34495e;
      text-decoration: none;
      font-weight: 600;
      font-size: 1rem;
      transition: color 0.3s ease;
    }

    .nav-links a:hover {
      color: #ff6600;
    }

    /* HAMBURGER MENU */
    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
    }

    .hamburger div {
      width: 25px;
      height: 3px;
      background-color: #34495e;
      margin: 4px 0;
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: #fff;
        position: absolute;
        top: 70px;
        left: 0;
        padding: 1rem 2rem;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      }

      .nav-links.active {
        display: flex;
      }

      .hamburger {
        display: flex;
      }
    }

    header {
      background: url('foto.PNG') center/cover no-repeat;
      height: 85vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
      position: relative;
      margin: 0 20px;
    }

    header::after {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.55);
    }

    header h1 {
      position: relative;
      font-size: 2.5rem;
      font-weight: 700;
      z-index: 1;
      padding: 1rem 2rem;
      max-width: 800px;
    }

    @media (max-width: 768px) {
      header h1 {
        font-size: 1.8rem;
      }
    }

    section {
      padding: 4rem 2rem;
      max-width: 1200px;
      margin: auto;
    }

    section h2 {
      text-align: center;
      margin-bottom: 2.5rem;
      font-size: 2.2rem;
      font-weight: 700;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }

    .card {
      background-color: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }

    .card h3 {
      padding: 1rem;
      font-size: 1.4rem;
    }

    .card p {
      padding: 0 1rem 1.5rem;
      color: #5d6d7e;
    }

    .about {
      text-align: center;
    }

    .about p {
      max-width: 700px;
      margin: auto;
      font-size: 1.1rem;
      color: #566573;
    }

    .cta {
      display: inline-block;
      margin-top: 2rem;
      padding: 1rem 2.5rem;
      background-color: #ff6600;
      color: white;
      font-size: 1rem;
      font-weight: 600;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: background 0.3s ease;
    }

    .cta:hover {
      background-color: #e65c00;
    }

    footer {
      background-color: #2c3e50;
      color: #ccc;
      text-align: center;
      padding: 2rem 1rem;
      margin-top: 4rem;
      font-size: 0.95rem;
    }

    /* BOTÓ CONTACTE */
    .contacte-menu {
      position: relative;
      display: inline-block;
    }

    .contacte-btn {
      background-color: #007bff;
      color: white;
      padding: 10px 15px;
      border: none;
      cursor: pointer;
      border-radius: 4px;
      font-size: 16px;
    }

    .contacte-submenu {
      display: none;
      position: absolute;
      top: 45px;
      left: 0;
      background-color: #f9f9f9;
      min-width: 180px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      border-radius: 4px;
      z-index: 1000;
    }

    .contacte-submenu a {
      display: block;
      padding: 10px 15px;
      color: #333;
      text-decoration: none;
      transition: background 0.3s;
    }

    .contacte-submenu a:hover {
      background-color: #eee;
    }

    .contacte-submenu.show {
      display: block;
    }