* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  background: linear-gradient(135deg, #fdfbfb, #ebedee);
  color: #333;
  padding: 40px 20px;
}

/* Heading */
h1 {
  font-size: 2rem;
  margin-bottom: 25px;
  color: #007bff;
  text-align: center;
  font-weight: 700;
}

/* Form */
form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #fff;
  padding: 20px 25px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 420px;
}

form input {
  padding: 12px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 8px;
  outline: none;
  transition: all 0.3s ease;
}

form input:focus {
  border-color: #007bff;
  box-shadow: 0 0 6px rgba(0, 123, 255, 0.4);
}

form button {
  padding: 12px;
  background: #007bff;
  color: #fff;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

form button:hover {
  background: #0056b3;
  transform: translateY(-2px);
}

/* Result zones */
p {
  margin-top: 15px;
  font-size: 18px;
  padding: 14px 16px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  width: 100%;
  max-width: 420px;
  line-height: 1.5;
}

p span {
  font-weight: bold;
  color: #007bff;
  margin-left: 8px;
}

@media (max-width: 500px) {
  h1 {
    font-size: 1.6rem;
  }

  form, p {
    width: 100%;
    padding: 15px;
    font-size: 16px;
  }

  form input, form button {
    font-size: 14px;
    padding: 10px;
  }
}