:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2937;
  background: #f3f4f6;
}

body {
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 20px;
}

.hero,
.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

h1 {
  margin-top: 0;
  font-size: 2.4rem;
  letter-spacing: -0.04em;
}

h2 {
  margin-top: 0;
  font-size: 1.5rem;
}

p {
  color: #4b5563;
}

label {
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  box-sizing: border-box;
  margin-top: 6px;
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 700;
  color: #ffffff;
  background: #2563eb;
}

button:hover {
  background: #1d4ed8;
}

#result {
  background: #f9fafb;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  padding: 20px;
}

.badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 0.85rem;
  font-weight: 700;
}

#result h3 {
  margin-top: 0;
}

#result ul {
  padding-left: 20px;
}