* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #111; 
  color: #fff;
}


main {
  display: flex;
  width: 100vw;
  height: 100vh;
  justify-content: center;
  align-items: center;
}

.container {
  display: flex;
  flex-direction: column;
  background: #1b1b1b; 
  width: 400px;
  padding: 30px;
  border-radius: 18px;
  box-shadow: 0 0 20px rgba(0,0,0,0.6);
  gap: 25px;
  border: 1px solid #333;
}


.title {
  text-align: center;
  font-size: 2.3rem;
  font-weight: bold;
  padding-bottom: 15px;
  border-bottom: 3px solid #444;
  color: #e6e6e6;
}

.input {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.input label {
  font-size: 1.1rem;
  font-weight: bold;
  color: #ccc;
}

.input input {
  height: 45px;
  border-radius: 8px;
  border: 1px solid #333;
  outline: none;
  padding: 10px;
  font-size: 1.2rem;
  text-align: center;
  background: #0e0e0e; 
  color: #fff;
  transition: 0.2s;
}

.input input:focus {
  border-color: #008cff; 
  box-shadow: 0 0 8px rgba(0,140,255,0.6);
}


button {
  width: 100%;
  height: 45px;
  border-radius: 8px;
  border: none;
  background: #008cff; 
  color: #fff;
  font-size: 1.3rem;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: #0a6cb5; 
}


.result {
  width: 100%;
  min-height: 120px;
  background: #0e0e0e;
  color: #00aaff; 
  border-radius: 10px;
  padding: 20px;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  box-shadow: 0 0 15px rgba(0,0,0,0.5);
  border: 1px solid #222;
}