h3 {
  color: #0047AB;
}

main.container {
  flex-grow: 1;
  max-width: 600px;
  margin: 3rem auto;
  padding: 0 1rem;
  width: 100%;
  text-align: center;
}

.form-icon {
  font-size: 4rem;
  color: #0047AB;
  margin-bottom: 1rem;
}

form {
  text-align: left;
  background-color: #e6f0ff;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 71, 171, 0.15);
}

.form-label {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.form-control {
  border-radius: 12px;
  border: 1.5px solid #0047AB;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  color: #0047AB;
  background-color: white;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  border-color: #00296b;
  box-shadow: 0 0 6px #00296b88;
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.btn-send {
  background-color: #0047AB;
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0, 71, 171, 0.4);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
  display: block;
  margin-top: 1.5rem;
  width: 100%;
}

.btn-send:hover,
.btn-send:focus {
  background-color: #00296b;
  box-shadow: 0 8px 25px rgba(0, 41, 107, 0.7);
  outline: none;
}

@media (max-width: 576px) {
  main.container {
    margin: 2rem 1rem;
  }

  form {
    padding: 1.5rem;
  }

  .form-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
  }
}