body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
}

header {
   background: url('class.jpg') no-repeat center center/cover;
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

header img {
  height: 100px;
}

.contact {
  text-align: right;
}

.hero {
 
  position: relative;
  padding: 80px 20px;
  text-align: center;
  color: white;
}

.hero .overlay {
  background-color: rgba(15, 118, 110, 0.8);
  padding: 40px;
  border-radius: 12px;
  display: inline-block;
}

.hero h2 {
  font-size: 30px;
  margin-bottom: 15px;
}

.section {
  padding: 30px 20px;
  background-color: #ffffff;
  margin: 20px auto;
  max-width: 1000px;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0,0,0,0.05);
}

.section h3 {
  font-size: 24px;
  color: #0f766e;
  margin-bottom: 15px;
}

.section ul {
  padding-left: 20px;
}

.subjects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  text-align: center;
  padding: 10px;
}

.footer {
  background-color: #0d4b45;
  color: white;
  text-align: center;
  padding: 25px;
  margin-top: 40px;
}

.form-section {
  max-width: 1000px;
  margin: 0 auto 40px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
  color: #1f2937;
}

.form-group input {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
  box-sizing: border-box;
}

.form-group input:focus {
  border-color: #0f766e;
  outline: none;
}

.submit-btn {
  width: 100%;
  background-color: #0f766e;
  color: white;
  padding: 12px;
  font-size: 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.submit-btn:hover {
  background-color: #115e59;
}