html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
  background-color: white;
  display: flex;
  flex-direction: column;
}

header {
  background-image: url("https://images.pexels.com/photos/33240721/pexels-photo-33240721.jpeg");
  color: white;
  padding: 50px 20px;
  background-size: cover;
  background-position: center;
  text-align: center;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

header p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

header a {
  background-color: #bfc0ba;
  color: white;
  padding: 14px 25px;
  text-decoration: none;
  display: inline-block;
  border-radius: 5px;
}

header a:hover {
  background-color: #a5a6a0;
}

body > .features {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px;
  gap: 20px;
}

.feature {
  flex: 1 1 300px;
  max-width: 400px;
  max-height: 400px;
  padding: 20px;
  background-color: white;
  border-radius: 5px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.feature:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.feature a {
  background-color: #bfc0ba;
  color: white;
  padding: 12px 20px;
  text-decoration: none;
  display: inline-block;
  margin-top: 10px;
  border-radius: 5px;
}

.feature a:hover {
  background-color: #a5a6a0;
}

.footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px 0;
  background-color: #f4f4f4;
  font-size: 0.9rem;
}

/* Responsiv */
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }

  header p {
    font-size: 1rem;
  }

  .features {
    flex-direction: column;
    align-items: center;
  }

  .feature {
    width: 90%;
  }

  .video-center video {
    width: 90%;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.5rem;
  }

  header p {
    font-size: 0.9rem;
  }

  header a, .feature a {
    padding: 10px 15px;
    font-size: 0.9rem;
  }
}

.video-center {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 0;
  background-color: #f0f0f0;
}