@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-input: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --border-color: #475569;
  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
}

body {
  background-color: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  font-family: "Poppins", sans-serif;
}

.container {
  width: 100%;
  max-width: 400px;
  background-color: var(--bg-secondary);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

h1 {
  text-align: center;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 15px;
}

label {
  display: block;
  margin-bottom: 5px;
  color: var(--text-secondary);
}

input,
select {
  width: 100%;
  padding: 10px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-size: 1rem;
  color: var(--text-primary);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

button {
  width: 100%;
  padding: 12px;
  background-color: var(--accent-primary);
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

#result {
  margin-top: 20px;
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-primary);
}