/* === General === */
body {
  background-color: black;
  margin: 0;
}

/* === Glass Navbar === */
.glass-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 15px 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
  z-index: 999;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.back-btn {
  color: white;
  text-decoration: none;
  padding: 8px 20px;
  border: 1px solid #888;
  border-radius: 10px;
  font-size: 16px;
  font-family: 'Inter', sans-serif;
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.back-btn:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: scale(1.05);
}

/* === Heading === */
.main-heading {
  padding-top: 4rem;
  text-align: center;
  font-family: 'Montserrat', sans-serif;
  color: white;
  font-size: 2rem;
}

/* === Content Container === */
.container {
  padding: 1rem 2rem 0 4rem;
}

.container h3 {
  font-family: 'Montserrat', sans-serif;
  color: grey;
  font-size: 1.4rem;
  font-weight: 500;
}

section {
  margin-bottom: 2rem;
}

.container p {
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.8rem;
}

.container ul {
  padding-left: 1rem;
  line-height: 2rem;
}

.container ul li {
  color: white;
  line-height: 2rem;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
}

/* === Links === */
.container a {
  color: lightskyblue;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  text-decoration: none;
}

.container a:hover {
  color: skyblue;
}

/* === Block Diagram (full width center) === */
.container img {
  display: block;
  width: 25rem;
  max-width: 600px;
  margin: 1.2rem auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease;
}

.container img:hover {
  transform: scale(1.02);
}

/* === Image Row for Prototype Views === */
.image-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.image-row img {
  width: 200px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease;
}

.image-row img:hover {
  transform: scale(1.05);
}

/* === Mobile Responsive === */
@media (max-width: 600px) {
  .main-heading {
    font-size: 1.3rem;
  }

  .container {
    padding: 1rem;
  }
  .container img{
    width: 20rem;
  }
  .container h3 {
    font-size: 1rem;
    font-weight: 500;
  }

  .container p {
    font-size: 0.85rem;
    line-height: 1.5rem;
  }

  .container ul li {
    font-size: 0.85rem;
    line-height: 1.5rem;
  }

  .container a {
    font-size: 0.85rem;
  }

  .back-btn {
    font-size: 14px;
    padding: 6px 16px;
  }

  .image-row img {
    width: 100%;
    max-width: 300px;
  }
}