body {
  margin: 0;
  font-family: 'Work Sans', sans-serif;
  background-color: #111;
  color: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
  width: 90%;
  max-width: 500px;
}

h1 {
  font-weight: 300;
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

h1 span.brand {
  color: #ffd700;
  font-weight: 600;
}

.calculator {
  background-color: #1c1c1c;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.1);
}

label {
  display: block;
  margin-top: 1rem;
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
  color: #aaa;
  text-align: left;
}

input {
  width: 100%;
  padding: 0.7rem;
  border-radius: 8px;
  border: none;
  background-color: #2a2a2a;
  color: white;
  font-size: 1rem;
}

button {
  margin-top: 1.5rem;
  width: 100%;
  padding: 1rem;
  background-color: #ffd700;
  border: none;
  border-radius: 8px;
  color: #111;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #ffcc00;
}

.result {
  margin-top: 2rem;
  font-size: 1.2rem;
  color: #ffd700;
}

.logo {
  max-width: 40%;
  height: auto;
  margin-bottom: 2rem;
  margin-top: 4rem;
}

.calculator {
  padding: 0;
  background: none;
  box-shadow: none;
}

footer {
  margin-top: auto;
  text-align: center;
  font-size: 0.9rem;
  color: #aaa;
  padding: 2rem 0;
}

footer a {
  color: #ffd700;
  text-decoration: none;
  font-weight: 500;
}

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

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type=number] {
  -moz-appearance: textfield;
}