style.css

:root {
  --font-size: 14px;
  --font-family: monospace;
  --background-color: black;
  --text-color: white;
  --input-background-color: gray;
  --border-color: white;
  --button-background-color: #333;
  --button-text-color: #fff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size);
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.terminal {
  position: relative;
  border: 2px solid var(--border-color);
  border-radius: 5px;
  padding: 20px;
  width: 1000px;
  height: 500px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  line-height: 1.5;
}

.terminal-text {
  padding: 0 0 10px;
}

.terminal-form {
  display: flex;
  align-items: center;
  margin-top: auto;
  position: relative;
  width: 100%;
  justify-content: center;
}

.terminal-form input[type='text'] {
  flex: 1;
  margin-right: 10px;
  font-family: var(--font-family);
  font-size: var(--font-size);
  padding: 5px;
  border: none;
  border-bottom: 2px solid #ccc;
  background-color: var(--input-background-color);
  color: var(--text-color);
  outline: none;
  caret-color: var(--text-color);
}

.terminal-form input[type='submit'] {
  font-family: var(--font-family);
  font-size: var(--font-size);
  padding: 5px 10px;
  background-color: var(--button-background-color);
  color: var(--button-text-color);
  border: none;
  cursor: pointer;
}

.terminal-form input[type='text']::placeholder {
  color: var(--text-color);
}

.button-container {
  text-align: center;
}

.centered-button {
  margin: 10px;
  padding: 10px;
  font-size: 16px;
}

input[type='submit']:hover {
  background-color: var(--background-color);
  color: var(--text-color);
}