:root {
  --bg:         #F3EFE9;
  --panel:      #FBF9F6;
  --text:       #6b5d59;
  --text-muted: #a89a8e;
  --divider:    rgba(154, 139, 135, 0.25);
  --danger:     #b05c4d;
  --ok:         #6f8b6a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Serif TC', Georgia, serif;
  line-height: 1.7;
  padding: 24px 16px 64px;
}

.admin-wrap {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.admin-header h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.admin-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--divider);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-form {
  display: flex;
  gap: 8px;
}

input[type="text"],
input[type="date"] {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--divider);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 12px;
}

input:focus { outline: 1px solid var(--text-muted); }

.btn {
  border: 1px solid var(--divider);
  border-radius: 8px;
  background: #ece6df;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover { background: #e2dbd2; }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-primary { background: #dcd5d3; }
.btn-danger  { color: #fff; background: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #9d4f41; }

.message {
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}
.message--error { color: var(--danger); }
.message--ok    { color: var(--ok); }

.result-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nfc-code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.9rem;
  background: #efe9e2;
  border-radius: 6px;
  padding: 4px 10px;
  word-break: break-all;
}

.badge {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  border-radius: 100px;
  padding: 3px 14px;
  border: 1px solid var(--divider);
  background: #efe9e2;
}
.badge--valid   { color: #fff; background: var(--ok); border-color: var(--ok); }
.badge--demo    { color: var(--text); background: #e3ddf0; }
.badge--expired { color: #fff; background: #c08a3e; border-color: #c08a3e; }
.badge--locked  { color: #fff; background: var(--danger); border-color: var(--danger); }
.badge--off     { color: #fff; background: #8d8580; border-color: #8d8580; }

.fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 20px;
  border-top: 1px solid var(--divider);
  padding-top: 16px;
}

.field--full { grid-column: 1 / -1; }

.field dt {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.field dd {
  font-size: 0.92rem;
  word-break: break-all;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--divider);
  padding-top: 16px;
}

.action-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.action-row label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  min-width: 9em;
}

@media (max-width: 480px) {
  .fields { grid-template-columns: 1fr; }
  .action-row label { min-width: 0; width: 100%; }
}