* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: Poppins, sans-serif;
}

html,
body {
  width: 100%;
}

/* -------------------
-------------------
Host Banner
-------------------
------------------- */

.top-banner {
  width: 100%;
  text-align: center; /* Center the image */
  padding: 10px 0; /*Add some spacing */
  border-bottom: 1px solid #ddd; /* Thin separator line */
}

.top-banner img {
  max-width: 100%;
  height: 50px; /* Maintain aspect ratio */
}

/* -------------------
-------------------
Navbar
-------------------
------------------- */

#header {
  position: -webkit-sticky; /* For Safari */
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6, 12, 34, 0.98);
  padding: 15px 0;
  transition: all 0.5s;
}

/* Container inside header */
.container {
  width: 90%;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
}

/* Logo styling */
#logo img {
  max-height: 40px;
}

/* Nav Menu Container */
#nav-menu-container {
  float: right;
}

/* Nav Menu Essentials */
.nav-menu,
.nav-menu * {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-menu li {
  position: relative;
  margin-left: 15px;
}

.nav-menu li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 8px 12px;
  font-weight: 600;
  font-size: 14px;
  transition: color 0.3s;
}

/* Dropdown Menu */
.nav-menu li.menu-has-children > ul.dropdown {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background: #fff;
  box-shadow: 0px 0px 30px rgba(127, 137, 161, 0.25);
  border-radius: 3px;
  padding: 10px 0;
  z-index: 99;
}

.nav-menu li.menu-has-children:hover > ul.dropdown {
  display: block;
}

.nav-menu li.menu-has-children ul.dropdown li {
  min-width: 180px;
  margin: 0;
}

.nav-menu li.menu-has-children ul.dropdown li a {
  padding: 10px;
  color: #060c22;
  font-size: 13px;
  display: block;
  transition: background 0.3s, color 0.3s;
}

.nav-menu li.menu-has-children ul.dropdown li a:hover {
  background: #9b5de5;
  color: #000;
}

/* Optional: Add transitions or effects on scroll
       (For example, you might add a "header-scrolled" class via JavaScript to change height or background) */
#header.header-scrolled {
  background: rgba(6, 12, 34, 0.98);
  padding: 10px 0;
}

.nav-menu li.Registration a {
  color: #000000;
  background: #00bbf9;
  padding: 7px 22px;
  border-radius: 50px;
  border: 2px solid #00bbf9;
  transition: all ease-in-out 0.3s;
  font-weight: 700;
  margin-left: 8px;
  margin-top: 2px;
  line-height: 1;
  font-size: 13px;
}

.nav-menu li.Abstract a {
  color: #000000;
  background: #fee440;
  padding: 7px 22px;
  border-radius: 50px;
  border: 2px solid #fee440;
  transition: all ease-in-out 0.3s;
  font-weight: 700;
  margin-left: 8px;
  margin-top: 2px;
  line-height: 1;
  font-size: 13px;
}

.selected {
  color: #fee440;
}

/* -------------------
-------------------
Banner Image
-------------------
------------------- */

.banner {
  height: 400px;
  width: 100%;
  background-image: url("../img/About-iitm-banner.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

/* -------------------
-------------------
Heading
-------------------
------------------- */

.heading {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}

.heading h1 {
  margin-top: 1.5%;
  font-size: 3rem;
  text-transform: uppercase;
  color: #373737;
  font-family: "Montserrat Alternates";
}

.heading h2 {
  font-size: 1.2rem;
  color: #373737;
  font-weight: 700;
  font-family: Fondamento;
}

/* -------------------
-------------------
About-Header
-------------------
------------------- */

.iitm-info {
  width: 100%;
  margin-top: 20px;
  padding: 10px;
  color: #5d5d5d;
  display: flex;
  justify-content: center;
}

.info {
  max-width: 1100px;
  margin: 0px 20px;
}

.iitm-info p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 7px;
}

/* -------------------
-------------------
Images of Campus
-------------------
------------------- */

.images {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.images img {
  height: 18vh;
  width: 18vw;
  margin: 7px;
  border-radius: 9px;
  box-shadow: 0px 0px 20px -9px rgba(0, 0, 0, 0.75);
}

/* -------------------
-------------------
Atmospheric Science Info Section
-------------------
------------------- */

.atmos-science-info {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  width: 100%;
  margin-top: 20px;
  padding: 10px;
  color: #5d5d5d;
  background-color: rgb(240, 240, 240);
}

.atmos-science-info h2 {
  font-size: 2rem;
  color: #373737;
  margin-top: 20px;
  font-weight: 700;
  font-family: "Fondamento";
}

.atmos-science-info p {
  max-width: 1100px;
  margin: 10px 20px;
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 7px;
}

/* -------------------
-------------------
IITM Facilities Info Section
-------------------
------------------- */

.IITM-Facilities-info {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  width: 100%;
  margin-top: 20px;
  padding: 10px;
  color: #5d5d5d;
}

.IITM-Facilities-info h2 {
  font-size: 2rem;
  color: #373737;
  margin-top: 20px;
  font-weight: 700;
  font-family: "Fondamento";
}

.IITM-Facilities-info p {
  max-width: 1100px;
  margin: 10px 20px;
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 7px;
}

/* -------------------
-------------------
Footer Section
-------------------
------------------- */

footer {
  height: 8vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background-color: #070e23;
  color: #ffffff;
  margin-top: 20px;
}

footer div {
  margin-top: 1.5em;
}

/* Extra :
box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.2);
background: linear-gradient(to right, #C9EEFF, #F5C7F7); */