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

body {
  background: #003262;
}

.navbar {
  position: absolute;
  top: 0;
  width: 100%;
  padding: 15px 0;
  display: flex;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  z-index: 1000;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 40px;
  align-items:center;
}

.nav-links a {
  color:rgb(129, 128, 128);
  text-decoration: none;
  font-weight: bold;
  position: relative;
  display:inline-block;
  transition:0.3s ease;
}

.nav-links a:hover {
  transform: scale(1.1);
}

.dropdown{
    position: relative;
    display: inline-block;
}

.dropdown-content{
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 10px;
    min-width: 160px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    overflow: hidden;
    z-index: 20;
}

.dropdown-content a{
    color: rgb(129, 128, 128);
    padding: 12px 16px;
    display: block;
    text-decoration: none;
    transition: 0.3s;
}

.dropdown-content a:hover{
    background: rgba(255,255,255,0.12);
}

.dropdown:hover .dropdown-content{
    display: block;
}

.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 20px 20px; 
  background:
  linear-gradient(to bottom, rgba(0,0,0,0.2), rgba(0,0,0,0.7)),
    url('school-photo.webp');
  background-size: cover;
  background-position: center 10%;
  text-align: center;
  position:relative;
}

.hero h1 {
  font-size: 80px;
  color: white;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
  margin-bottom: 30px;
}

.letter {
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.9),
    rgba(255,255,255,1)
  );
  backdrop-filter: blur(10px);
  margin: -60px auto 0 auto;
  max-width: 95%;
  border-radius: 40px;
  padding: 60px 20px;
  position: relative;
  z-index: 2;
}

.letter-container {
  max-width: 760px;
  margin: auto;
}

.letter-container h2 {
  font-size: 28px;
  font-weight: 700;
  color: #003262;
  margin-bottom: 24px;
}

.letter-container p {
  font-size: 15px;
  line-height: 1.85;
  color: #1a2a3a;
}

.about {
  margin-top: 50px;
  margin-bottom: 50px;
  margin-right:20px;
   margin-left:20px;
  position: relative;
  z-index: 3;
}

.boxes {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.about-card {
  background: #fff;
  border-radius: 22px;
  padding: 36px 36px;
  flex: 1;
  min-width: 260px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.card-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #7aafd4;
  margin-bottom: 8px;
}

.about-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: #003262;
  margin-bottom: 14px;
}

.about-card p {
  font-size: 14px;
  line-height: 1.8;
  color: #3a4a5a;
}

.card-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  background: #003262;
  color: white;
  font-family: 'Poppins', sans-serif;
  font-size: 13px;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none;
  transition: 0.3s ease;
}

.card-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}

.conference{
  margin-top: 50px;
  margin-bottom: 50px;
  margin-right:20px;
  margin-left:20px;
  position: relative;
  z-index: 3;
}

.conference-container{
  background: #fff;
  border-radius: 22px;
  padding: 36px 36px;
  flex: 1;
  min-width: 260px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.conference-container p {
  font-size: 15px;
  line-height: 1.85;
  color: #1a2a3a;
}

footer {
  text-align: center;
  padding: 30px;
  color: white;
  background-color: #003262;
}

.icons {
  margin-top: 10px;
}

.icons a {
  color: white;
  font-size: 22px;
  margin: 0 10px;
  transition: 0.3s;
}

.icons a:hover {
  color: #ddd;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(0, 30, 70, 0.97);
    padding: 12px 0;
  }

  .nav-links.open {
    display: flex;
  }



  .nav-links a {
    padding: 10px 24px;
    color:white;
  }
}