:root {
  --ink: #1a1a1a;
  --paper: #fafaf8;
  --line: #d8d6cf;
  --accent: #1a1a1a;
  --muted: #6b6a63;
  --error: #a3291f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.4;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.wrap-narrow { max-width: 380px; }

.page-head { margin-bottom: 24px; }
.page-head h1 { font-size: 1.6rem; margin: 0 0 4px; }
.sub { color: var(--muted); margin: 0; }
.admin-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }

.save-status {
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
  margin-top: 8px;
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 16px 20px 20px;
  margin: 0 0 20px;
}

legend {
  font-weight: 600;
  padding: 0 8px;
  font-size: 1.05rem;
}

h3 { font-size: 0.95rem; margin: 16px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.02em; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
}
.checkbox-label input { width: auto; }

input[type="text"],
input[type="tel"],
input[type="date"],
input[type="month"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 9px 10px;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}

textarea { resize: vertical; }

.note { font-size: 0.85rem; color: var(--muted); }

.legal-text {
  background: #f0efe9;
  border-radius: 4px;
  padding: 14px 16px;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 14px;
}
.legal-text p { margin: 0 0 8px; }
.legal-text p:last-child { margin-bottom: 0; }

.grid-row {
  display: grid;
  grid-template-columns: 24px 1.4fr 1fr 1.4fr 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.grid-row-3 { grid-template-columns: 24px 1.5fr 0.8fr 1fr; }
.row-num { color: var(--muted); font-size: 0.85rem; }

.submit-row { text-align: center; margin-top: 24px; }

button, .btn-secondary, .btn-danger {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 12px 28px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
}

.btn-secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); padding: 8px 16px; }
.btn-danger { background: var(--error); margin-top: 20px; }

.error { color: var(--error); }

.admin-table, .detail-table {
  width: 100%;
  border-collapse: collapse;
}
.admin-table th, .admin-table td,
.detail-table th, .detail-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.detail-table th { width: 220px; color: var(--muted); font-weight: 500; vertical-align: top; }