:root {
  --bg: #f5f6fa;
  --fg: #1f2937;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --danger: #dc2626;
  --warning: #f59e0b;
  --ok: #16a34a;
  --border: #e5e7eb;
  --card-bg: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 15px;
  line-height: 1.5;
}
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand { font-weight: 600; font-size: 17px; }
.topbar nav a {
  margin-left: 16px;
  text-decoration: none;
  color: var(--fg);
  padding: 6px 12px;
  border-radius: 6px;
}
.topbar nav a:hover { background: var(--bg); }
.muted { color: var(--muted); }
main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
h1 { margin: 0 0 16px; font-size: 22px; }
h2 { margin: 24px 0 12px; font-size: 17px; }
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin: 12px 0;
}
label { display: block; margin-bottom: 14px; }
label span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=password], input[type=search], select, input[type=file] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
}
button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn:hover { background: var(--accent-hover); }
table.data {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
table.data th, table.data td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
table.data th { background: #f9fafb; font-weight: 600; font-size: 13px; }
table.data tr:last-child td { border-bottom: 0; }
code { background: #f3f4f6; padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}
.badge-published { background: #fef3c7; color: #92400e; }
.badge-inquired { background: #dbeafe; color: #1e40af; }
.badge-purchased { background: #d1fae5; color: #065f46; }
.flashes { max-width: 1100px; margin: 12px auto; padding: 0 16px; }
.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 8px;
}
.flash-success { background: #d1fae5; color: #065f46; }
.flash-danger  { background: #fee2e2; color: #991b1b; }
.flash-warning { background: #fef3c7; color: #92400e; }
.flash-info    { background: #dbeafe; color: #1e40af; }
.empty { color: var(--muted); padding: 24px; text-align: center; }
.filter { display: flex; gap: 8px; margin-bottom: 12px; }
.filter input[type=search] { flex: 1; }
.stats { display: flex; gap: 12px; margin: 12px 0 24px; }
.stat {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}
.stat .num { font-size: 28px; font-weight: 600; }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }
.stat.published .num { color: var(--warning); }
.stat.inquired .num  { color: var(--accent); }
.stat.purchased .num { color: var(--ok); }
.meta { color: var(--muted); font-size: 13px; margin: 8px 0; display: flex; gap: 12px; align-items: center; }
.origimg { max-width: 100%; max-height: 360px; border: 1px solid var(--border); border-radius: 6px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.footer {
  text-align: center;
  color: var(--muted);
  padding: 24px;
  margin-top: 24px;
}
fieldset {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 16px;
  margin: 12px 0;
}
legend { padding: 0 8px; font-weight: 600; font-size: 14px; }