* {
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #072bca, #5d5dde);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 50%;
  padding: 30px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  color: #fff;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

.input-group input {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: none;
  outline: none;
  font-size: 16px;
  margin-bottom: 15px;
}

.select-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

select {
  width: 40%;
  padding: 10px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
}

button {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: none;
  background: #00e6a8;
  color: #000;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.loading {
  display: none;
  margin-top: 15px;
}

.result {
  margin-top: 15px;
  font-size: 18px;
  font-weight: bold;
}

.error {
  margin-top: 10px;
  color: #ffb3b3;
}