@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap");

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

body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  background: linear-gradient(315deg,#0f2027,#203a43,#2c5364 74%);
}

.container {
  background: #f7f7f7; border-radius: 10px;
  padding: 25px; max-width: 700px; width: 100%;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

header {
  text-align: center; font-size: 1.8rem;
  color: #333; font-weight: 600; margin-bottom: 20px;
}

.input-box, .select-box {
  margin-top: 15px; width: 100%;
}

label { color: #333; font-weight: 500; }

input, select {
  width: 100%; padding: 12px; margin-top: 8px;
  border: 1px solid #ccc; border-radius: 6px;
  font-size: 1rem; outline: none;
}

input:focus, select:focus {
  border-color: #6c63ff; box-shadow: 0 0 5px rgba(108,99,255,0.3);
}

.column { display: flex; gap: 15px; }

fieldset { border: none; margin-top: 15px; }
legend { font-weight: 600; margin-bottom: 5px; }

.gender-box {
  display: flex; justify-content: space-between; 
  border: 1px solid #ccc; border-radius: 8px;
  padding: 10px; background: #fff;
}

.gender-box label { cursor: pointer; }

.btn {
  width: 100%; padding: 15px;
  background: #4caf50; color: white;
  font-size: 1rem; font-weight: 600;
  border: none; border-radius: 6px;
  margin-top: 25px; cursor: pointer;
  transition: 0.3s;
}

.btn:hover {
  background: #43a047;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
}

/* Responsive */
@media (max-width: 600px) {
  .column { flex-wrap: wrap; }
  .gender-box { flex-wrap: wrap; gap: 10px; }
}