:root { color-scheme: light dark; }
body {
  font-family: -apple-system, Segoe UI, Arial, sans-serif;
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
  line-height: 1.4;
}
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; margin-top: 0; }
section {
  border: 1px solid #8884;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
label { display: block; font-size: 0.85rem; margin-top: 0.6rem; margin-bottom: 0.2rem; }
input, select, textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 0.4rem;
  font-size: 0.9rem;
}
textarea { resize: vertical; min-height: 2.5rem; }
button {
  margin-top: 0.8rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
}
.row { display: flex; gap: 0.6rem; align-items: center; }
.row > * { flex: 1; }
.row .checkbox-cell { flex: 0 0 auto; display: flex; align-items: center; gap: 0.3rem; }
.checkbox-cell input { width: auto; }
.guest-row { display: flex; gap: 0.5rem; margin-top: 0.5rem; align-items: center; }
.guest-row input[type="text"] { flex: 1; }
.guest-row .checkbox-cell { flex: 0 0 auto; }
pre {
  background: #8881;
  padding: 0.75rem;
  border-radius: 6px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.8rem;
  margin-top: 0.8rem;
}
.error { color: #d33; font-weight: bold; }
table { width: 100%; border-collapse: collapse; margin-top: 0.8rem; font-size: 0.85rem; }
th, td { border: 1px solid #8884; padding: 0.4rem; text-align: left; }
.summary { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 0.6rem; }
.summary div { background: #8882; padding: 0.4rem 0.8rem; border-radius: 6px; }
.invite-banner { padding: 0.6rem; border-radius: 6px; margin-top: 0.6rem; }
.invite-open { background: #2a82; }
.invite-closed { background: #d332; }
small.hint { display: block; margin-top: 0.3rem; opacity: 0.7; }