* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: #111827;
  background: #f5f7fb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.app {
  width: min(100%, 720px);
  padding: 36px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #ffffff;
}

.eyebrow {
  margin: 0 0 10px;
  color: #5b6fb7;
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.1;
}

.intro {
  margin: 14px 0 24px;
  color: #6b7280;
  font-size: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input {
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
}

button {
  padding: 12px 18px;
  border: 1px solid #2563eb;
  border-radius: 8px;
  color: #ffffff;
  background: #2563eb;
  font-weight: 700;
  cursor: pointer;
}

button.secondary {
  margin-top: 14px;
  color: #2563eb;
  background: #ffffff;
}

.feedback {
  min-height: 24px;
  color: #b91c1c;
  font-weight: 700;
}

.prompt-list {
  display: grid;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.prompt-list li {
  padding: 14px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #f8fafc;
}

@media (max-width: 620px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}