body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #e0f2fe, #93c5fd);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.converter-container {
  background: #ffffff;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  width: 90%;
  max-width: 500px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  color: #1e40af;
}

.input-section input,
.input-section select,
.input-section button {
  width: 100%;
  padding: 12px;
  margin-top: 8px;
  font-size: 1rem;
  border-radius: 10px;
  border: 1px solid #ccc;
}

.currency-select {
  width: 100%;
}

.input-section label {
  display: block;
  margin-top: 15px;
  font-weight: 500;
  text-align: left;
  color: #1e3a8a;
}

.input-section button {
  background: #2563eb;
  color: white;
  font-weight: bold;
  cursor: pointer;
  margin-top: 20px;
  transition: background 0.3s;
}

.input-section button:hover {
  background: #1e3a8a;
}

.result-section h2 {
  margin-top: 30px;
  color: #0f172a;
  font-size: 1.25rem;
}