body {
  font-family: 'Segoe UI', sans-serif;
  background: #f5f8fa;
  color: #232c3d;
  margin: 0;
  padding: 0;
}
header {
  background: linear-gradient(90deg, #142850 70%, #bfcad6 100%);
  color: #fff;
  padding: 2rem;
  text-align: center;
  border-bottom-left-radius: 2rem;
  border-bottom-right-radius: 2rem;
}
main {
  max-width: 650px;
  background: #fff;
  margin: 2rem auto;
  padding: 2rem;
  border-radius: 1.5rem;
  box-shadow: 0 2px 14px #232c3d11;
}
form section {
  margin-bottom: 1.2rem;
}
form label {
  font-weight: 600;
  margin-bottom: 0.4rem;
  display: block;
}
.row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
input[type="number"], input[type="text"], input[type="tel"], input[type="email"], select {
  width: 100%;
  padding: 0.6rem;
  border-radius: 0.8rem;
  border: 1px solid #bfcad6;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}
input[type="file"] {
  border: none;
  margin-top: 0.3rem;
}
button[type="submit"] {
  background: #142850;
  color: #fff;
  border: none;
  border-radius: 1.2rem;
  font-size: 1.1rem;
  padding: 0.8rem 2rem;
  font-weight: bold;
  box-shadow: 0 1px 6px #232c3d22;
  margin-top: 1.2rem;
  transition: background 0.2s;
}
button[type="submit"]:hover {
  background: #3c5a99;
}
#result {
  margin-top: 2rem;
  border-radius: 1.2rem;
  background: #e3eefd;
  color: #222d4a;
  padding: 1.2rem;
  font-size: 1.1rem;
  display: none;
}
footer {
  margin-top: 3rem;
  text-align: center;
  color: #6c7b91;
  padding: 1rem 0;
}