* {
  box-sizing: border-box;
  font-family: "Poppins";
}

body {
  font-family: "Poppins", sans-serif;
  background-color: #000;
  color: #fff;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  height: 100vh;
  padding: 0 10px;
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  width: 450px;
}

.container {
  text-align: center;
  max-width: 500px;
  width: 450px;
  padding: 20px;
  border-radius: 15px;
  overflow: hidden;
  background-color: #000;
}

h1 {
  font-size: 50px;
  font-weight: 700;
  margin-bottom: 20px;
}

textarea {
  width: 100%;
  height: 150px;
  border: 2px solid #555;
  border-radius: 10px;
  padding: 10px;
  font-size: 16px;
  background-color: #000;
  color: #fff;
  margin-bottom: 15px;
  resize: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  word-wrap: break-word;
}

textarea:focus {
  outline: none;
  border-color: #fff;
  box-shadow: 0 0 3px #fff;
}

.button-container {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

button {
  width: 100%;
  background-color: #ffffff;
  color: rgb(0, 0, 0);
  border: none;
  border-radius: 10px;
  padding: 15px;
  font-size: 24px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
}

button:hover {
  background-color: #45ff4e;
}

.result {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

.result-item {
  background-color: #000000;
  border-radius: 10px;
  padding: 15px;
  max-width: 100%;
  width: 300px;
  color: #000;
  font-size: 14px;
  text-align: center;
  word-wrap: break-word;
}

.valid {
  color: #28a745;
}

.invalid {
  color: #ff4d4d;
}

footer {
  text-align: center;
  color: #fff;
  font-size: 14px;
  margin-top: 20px;
}

footer a {
  color: #45ff4e;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}