* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding: 80px 20px;
  text-align: center;
  background: linear-gradient(to right, lightblue, lightgreen);
}

.container {
  background-color: white;
  padding: 30px 20px;
  width: 90%;
  max-width: 400px;
  margin: auto;
  border-radius: 40px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

.inputSec {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

input {
  padding: 10px 15px;
  font-size: 1rem;
  width: 65%;
  min-width: 180px;
  border: 3px solid grey;
  border-radius: 15px;
}

button {
  font-size: 0.9rem;
  padding: 10px 14px;
  border: none;
  border-radius: 12px;
  background-color: cornflowerblue;
  cursor: pointer;
  color: white;
  transition: transform 0.2s ease;
}

button:active {
  transform: scale(1.15);
}

@media (max-width: 440px) {
  .input {
    flex-direction: column;
  }

  input,
  button {
    width: 100%;
  }

  input {
    font-size: 0.95rem;
  }

  button {
    font-size: 1rem;
    padding: 12px;
  }
}

@media (max-width: 310px) {
  .container {
    padding: 20px 10px;
    border-radius: 30px;
  }

  .input {
    flex-direction: column;
    gap: 8px;
  }

  input,
  button {
    width: 100%;
    font-size: 0.9rem;
  }

  button {
    padding: 10px;
  }

  #heading {
    font-size: 1.2rem;
  }
}

@media (max-width: 260px) {
  .container {
    padding: 15px 8px;
    border-radius: 25px;
  }

  .input {
    flex-direction: column;
    gap: 6px;
  }

  input,
  button {
    width: 100%;
    font-size: 0.8rem;
  }

  button {
    padding: 8px;
  }

  #heading {
    font-size: 1rem;
    padding: 8px;
  }
}