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

body {
  font-family: Arial, sans-serif;
  background-color: #EAF6FF ; 
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.container {
  width: 400px;
  background: white;
  padding: 22px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  color: black;
}

h1 {
  margin-bottom: 10px;
  color: #333;
}

.datetime {
  font-size: 14px;
  color: #555;
  margin-bottom: 10px;
}

input[type="number"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.options {
  margin-bottom: 15px;
}

.options label {
  margin: 0 10px;
  font-size: 16px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  background-color: #008cba;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #005f7f;
}

.result-box {
  margin-top: 10px;
  font-size: 18px;
  color: #222;
  font-weight: bold;
}

/* ✅ Media Query for small screens */
@media (max-width: 500px) {
  .container {
    width: 90%;
    padding: 20px;
  }

  h1 {
    font-size: 20px;
  }

  input[type="number"], button {
    font-size: 14px;
  }

  .options label {
    font-size: 14px;
  }

  .result-box {
    font-size: 16px;
  }
}