.bodyH{
     border: 20px solid orange;   
      padding: 20px;             /* space between border and content */
      background-color:oldlace;
}
.bodyaT{
  border: 20px solid rgb(114, 114, 197);   /* thick pink border */
      padding: 20px;             /* space between border and content */
      background-color:#d8f8f5;
}
.bodyPRr {
      border: 20px solid yellowgreen;   /* thick pink border */
      padding: 20px;             /* space between border and content */
      background-color:lemonchiffon;
         }
.bodyCo {
      border: 20px solid pink;   /* thick pink border */
      padding: 20px;             /* space between border and content */
      background-color: #fffafc;
}
.bodySA {
      border: 20px solid rgb(19, 226, 147);   /* thick pink border */
      padding: 20px;             /* space between border and content */
      background-color: #9ff1cb;
}




 .h1Heading {
       display: block;               /* make heading behave like a block */
      width: 100%;                  /* stretch across the whole page */
      background-color: grey;  /* background color */
      color: rgb(108, 234, 238);              /* text color */
      text-align: center;           /* center the text */
      padding: 20px;                /* space inside the block */
      margin: 0;                    
      border-bottom: 4px solid rgb(192, 152, 219); 
 }
    /* Fade-in animation for the whole nav bar */
   /* Navigation bar */
nav {
  background-color: #333;
  padding: 20px;
  text-align: center;
  animation: fadeDown 1s ease-in-out;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 20px;
  font-size: 20px;
  position: relative;
  transition: color 0.3s ease, transform 0.3s ease;
}

nav a:hover {
  color: yellow;
  transform: scale(1.2);
  animation: bounce 0.6s;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 3px;
  background: yellow;
  transition: width 0.4s ease;
}

nav a:hover::after {
  width: 100%;
}

/* Animations */
@keyframes bounce {
  0%   { transform: translateY(0); }
  30%  { transform: translateY(-5px); }
  50%  { transform: translateY(0); }
  70%  { transform: translateY(-3px); }
  100% { transform: translateY(0); }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-30px); }
  to   { opacity: 1; transform: translateY(0); }
}
/* ---------------- RESPONSIVE RULES ---------------- */

/* Medium screens (tablets, ≤ 1024px) */
@media (max-width: 1024px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

/* Small screens (phones, ≤ 768px) */
@media (max-width: 768px) {
  nav {
    padding: 10px;
  }

  nav a {
    display: block;     /* stack links vertically */
    margin: 10px 0;
  }

  .menu-item {
    width: 100%;        /* each item takes full width */
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  h3 {
    font-size: 1.1rem;
  }
}

/* Extra small screens (≤ 480px) */
@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  nav a {
    font-size: 14px;
  }
}