@font-face {
  font-family: 'Neue Power Ultra';
  src: url('../fonts/NeuePower-Ultra.ttf') format('truetype');
}

@font-face {
  font-family: 'Neue Power Medium';
  src: url('../fonts/NeuePower-Medium.ttf') format('truetype');
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Neue Power Ultra', sans-serif;
  background-color: #fff;
  color: #000;
  overflow-x: hidden;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #fff;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo img {
  height: 1.5rem;
  width: auto;
}

.logo-text {
  font-family: 'Neue Power Medium', sans-serif;
  font-size: 1.1rem;
  color: #000;
  margin-left: 20px;
  text-transform: uppercase;
}

.logo-text span {
  display: block;
  text-align: left;
}

.contact-link {
  font-size: 1.3rem;
  color: #000;
  text-decoration: none;
  font-family: 'Neue Power Medium', sans-serif;
  text-transform: uppercase;
  position: fixed;
  top: 20px;
  right: 20px;
}

.contact-link:hover {
  color: #aaa;
}

.content {
  padding-top: 100px;
}

.banner-image {
  width: 90%;
  max-width: 2000px;
  height: 800px;
  object-fit: cover;
  display: block;
  margin: 30px auto;
  object-position: 50% 40%;
}

.cda-container, .cda5-cda6-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding: 0 5%;
}

.cda-container img, .cda5-cda6-container img {
  width: 100%;
  height: 800px;
  object-fit: cover;
}

.cda4-image, .cda7-image {
  width: 90%;
  max-width: 2000px;
  height: 800px;
  object-fit: cover;
  display: block;
  margin: 30px auto;
  object-position: 50% 40%;
}

.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.3s;
  opacity: 0;
  visibility: hidden;
}

.scroll-to-top svg {
  width: 24px;
  height: 24px;
  fill: white;
}

.scroll-to-top.show {
  opacity: 1;
  visibility: visible;
}

/* Responsive 768px */
@media screen and (max-width: 768px) {
  .logo img { height: 2.5rem; }
  .logo-text { font-size: 1rem; margin-left: 10px; }
  .contact-link { font-size: 1rem; top: 10px; right: 10px; }
  .banner-image, .cda-container img, .cda5-cda6-container img, .cda4-image, .cda7-image {
    height: 500px;
  }
  .cda-container, .cda5-cda6-container {
    grid-template-columns: 1fr;
  }
  .content {
    padding-top: 120px;
  }
}

/* Responsive 480px */
@media screen and (max-width: 480px) {
  .logo img { height: 2rem; }
  .logo-text { font-size: 0.9rem; }
  .contact-link { font-size: 0.9rem; }
  .banner-image, .cda-container img, .cda5-cda6-container img, .cda4-image, .cda7-image {
    height: 400px;
  }
}