body {
  background-color: black;
  color: white;
  font-family:Arial, Helvetica, sans-serif;
  margin: 0;
  text-align: center;

  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* -------------- Header and Navbar ---------------- */
header {
  height: 100px;
  margin: 5px 0px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  border-bottom: 1px solid #222;
  position: sticky;
  z-index: 100;
  top: 0;
  background-color: black;
  overflow-x: hidden;
}
.iitrlogo {
  height: 90%;
  font-size: medium;
  font-weight: 300;
  display: flex;
  align-items: center;
  gap: 25px;
}
.iitrlogo span{
  text-align: left;
}
.logotitle{
  display: flex;
  flex-direction: column;
}

.logo {
  width: 30%;
  height: 90px;
  margin: 2px;
  font-size: 24px;
  font-weight: bold;
  object-fit: contain;
  display: flex;
  align-items: center;
}
.flexend{
  justify-content: flex-end;
}
.logo img {
  height: 90%;
  cursor: pointer;
}
.logoRight{
justify-content: flex-end;
}

.ESClogo{
  height: 90%;
  font-size: medium;
  font-weight: 300;
  display: flex;
  align-items: center;
  gap: 20px;
  text-align: right;
}
.ESClogo img{
  height: 100%;
}
.hamburger {
  display: none;
}
.Navbar {
  width: 40%;
  height: 90px;
  margin: 2px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.Navbar ul {
  display: flex;
  align-items: center;
}
.Navbar ul li {
  list-style-type: none;
  margin: 0px 5px;
  padding: 2px 8px;
}
.Navbar ul li a {
  color: white;
  text-decoration: none;
}
/* .loginbtn {
  display: flex;
  align-items: flex-end;
  justify-content: end;
  width: 30%;
  border: none;
  background-color: #000000;
  color: white;
  gap: 15px;
  min-height: 30px;
  min-width: 110px;
}
#loginbtnsymbol {
  height: 15px;
} */
#Hamburger {
  filter: invert(1);
  height: 15px;
}

/* -------------- Main---------------- */
main {
  flex: 1;
}
.backbtn {
  display: flex;
  background: none;
  color: #888;
  border: none;
  border-radius: 5px;
  display: flex;
  align-items: center;
  margin: 10px 20px;
  gap: 5px;
  padding: 2px;
  cursor: pointer;
  min-height: 25px;
}
.backbtn img {
  color: #888;
  filter: invert(1);
}
.backbtn:hover {
  transform: scale(1.05);
  transition: 0.3s;
}

/* -------------- Footer ---------------- */
footer {
  border-top: 1px solid #222;
  padding: 20px;
  color: #888;
}
.latlong {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 20px;
}

/* -------------- Feedback Form ---------------- */
.feedbackimg {
  height: 4vh;
  background-color: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  filter: invert(0.7);
  cursor: pointer;
}
.circular {
  background-color: black;
  border-radius: 999px;
  height: 6vh;
  width: 6vh;
  position: fixed;
  bottom: 40px;
  right: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}
/* -------------- Mobile Responsiveness ---------------- */
@media (max-width: 600px) {
  .logo {
    width: 50%;
  }
  .logo span{
visibility: hidden;
  }
  .loginbtn {
    width: 50%;
    font-size: small;
  }
  .logo img {
    height: 50%;
  }
  header {
    height: 10vh;
    padding: 0 20px;
  }
  .Navbar {
    position: fixed;
    top: 0;
    right: -100%; /* hidden initially */
    height: 100vh;
    width: 250px;
    background: black;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 80px;
    transition: right 0.3s ease;
    z-index: 1000;
  }

  .Navbar.active {
    right: 0; /* slide in */
  }

  .Navbar ul {
    flex-direction: column;
    gap: 20px;
  }

  .hamburger {
    display: block;
    z-index: 1100;
  }
  .hamburger img {
    width: 20px;
  }
  .circular {
    right: 10px;
    bottom: 15px;
  }
  footer {
    font-size: small;
  }
}