body {
  font-family: "Segoe UI", sans-serif;
  background: #f8fafc;
  color: #0f172a;
  margin: 0;
  padding: 0;
}

header {
  background: linear-gradient(135deg, #06b6d4, #10b981);
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

main {
  max-width: 700px;
  margin: 2rem auto;
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

label {
  display: block;
  margin-top: 1rem;
}

input {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
}

button {
  margin-top: 1rem;
  background: #10b981;
  color: white;
  border: none;
  padding: 0.8rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-size: 1rem;
}
button:hover { background: #059669; }

#add {
  background: #06b6d4;
}
#add:hover { background: #0284c7; }

.hidden { display: none; }

.result {
  margin-top: 2rem;
  background: #f0fdf4;
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid #86efac;
}

.exports button {
  margin-right: 1rem;
}

footer {
  text-align: center;
  color: #64748b;
  font-size: 0.9rem;
  padding: 1rem 0;
}