:root {
  --admin-ink: #221f1d;
  --admin-muted: #766e68;
  --admin-line: #e6ded6;
  --admin-paper: #fffdf9;
  --admin-bg: #f5f1eb;
  --admin-accent: #a73f57;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0; color: var(--admin-ink); background: var(--admin-bg);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.muted { color: var(--admin-muted); font-size: 13px; }
.admin-login-page { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.admin-login-card {
  width: min(430px, 100%); padding: 30px; border: 1px solid var(--admin-line);
  border-radius: 20px; background: var(--admin-paper); box-shadow: 0 20px 60px #4b392318;
}
.admin-brand { color: inherit; font-weight: 750; text-decoration: none; }
.admin-login-card form { display: grid; gap: 12px; margin-top: 18px; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--admin-muted); }
input, textarea, select {
  width: 100%; border: 1px solid var(--admin-line); border-radius: 10px;
  padding: 10px 11px; background: #fff; color: var(--admin-ink);
}
textarea { min-height: 90px; resize: vertical; }
form button, .toolbar button {
  border: 0; border-radius: 10px; padding: 10px 13px;
  background: var(--admin-ink); color: white;
}
.link-button { border: 0; background: none; color: var(--admin-accent); padding: 14px 0 0; }
.status { min-height: 20px; color: var(--admin-accent); }
.admin-enroll-card h1 { margin: 22px 0 8px; }
.totp-qr {
  width: min(280px, 100%); margin: 18px auto; padding: 14px;
  border: 1px solid var(--admin-line); border-radius: 16px; background: #fff;
}
.totp-qr svg { display: block; width: 100%; height: auto; }
.totp-secret {
  display: block; margin: 8px 0 18px; padding: 10px 12px;
  overflow-wrap: anywhere; border: 1px dashed var(--admin-line);
  border-radius: 9px; background: #fff; color: var(--admin-ink);
  font: 13px/1.6 ui-monospace, Menlo, Consolas, monospace;
}
.admin-enroll-card h2 { margin-top: 0; font-size: 18px; }
.admin-rebind-login { display: inline-block; margin-top: 8px; color: var(--admin-accent); }
.recovery-panel {
  margin: 0 0 22px; padding: 16px;
  border: 1px solid var(--admin-line); border-radius: 14px;
  background: var(--admin-paper);
}
.recovery-panel h2 { margin: 0 0 8px; font-size: 17px; }
.recovery-panel h3 { margin: 18px 0 8px; font-size: 15px; }
.recovery-panel form { margin-top: 12px; }
.recovery-actions {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px;
  margin: 12px 0;
}
.recovery-actions button {
  border: 0; border-radius: 10px; padding: 10px 13px;
  background: var(--admin-ink); color: white;
}
.recovery-confirm {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--admin-muted); font-size: 12px;
}
.recovery-confirm input { width: auto; }
.admin-rebind-login.is-disabled {
  opacity: .48;
  cursor: not-allowed;
}
.admin-body { min-height: 100vh; }
.admin-topbar {
  height: 58px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px; border-bottom: 1px solid var(--admin-line); background: var(--admin-paper);
}
.admin-topbar button { margin-left: 12px; }
.admin-secondary-link {
  margin-left: 12px;
  color: var(--admin-accent);
  font-size: 13px;
  text-decoration: none;
}
.admin-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: calc(100vh - 58px); }
.admin-nav { padding: 16px 10px; border-right: 1px solid var(--admin-line); background: #fbf8f3; }
.admin-nav button {
  display: block; width: 100%; margin-bottom: 5px; padding: 10px;
  border: 0; border-radius: 9px; background: transparent; text-align: left;
  color: var(--admin-muted);
}
.admin-nav button.active { background: #f3e3e7; color: var(--admin-accent); }
.admin-content { padding: 26px; }
.admin-panel { display: none; max-width: 1100px; }
.admin-panel.active { display: block; }
h1 { margin: 0 0 18px; font-size: 22px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.metric-grid div, .admin-list article, .admin-panel form, pre {
  border: 1px solid var(--admin-line); border-radius: 14px;
  background: var(--admin-paper); padding: 14px;
}
.metric-grid span { display: block; color: var(--admin-muted); font-size: 12px; }
.metric-grid strong { display: block; margin-top: 8px; font-size: 24px; }
.boundary-note { margin-top: 16px; padding: 12px; background: #fff7e5; border-radius: 12px; font-size: 13px; }
.toolbar { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.toolbar input { flex: 1; }
.admin-list { display: grid; gap: 9px; }
.admin-list article { line-height: 1.65; }
.admin-list article header { display: flex; justify-content: space-between; gap: 12px; font-weight: 700; }
.admin-list article footer { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.admin-list article footer button {
  border: 1px solid var(--admin-line); border-radius: 8px; background: #fff; padding: 6px 9px;
}
.admin-panel form { display: grid; gap: 11px; margin-bottom: 14px; }
.admin-toast {
  position: fixed; right: 22px; bottom: 22px; padding: 10px 14px;
  border-radius: 10px; background: var(--admin-ink); color: #fff;
  opacity: 0; transform: translateY(10px); transition: .2s; pointer-events: none;
}
.admin-toast.show { opacity: 1; transform: translateY(0); }
pre { overflow: auto; white-space: pre-wrap; }
dialog {
  width: min(460px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--admin-line);
  border-radius: 18px; background: var(--admin-paper); color: var(--admin-ink);
}
dialog::backdrop { background: #221f1d66; }
dialog form {
  display: grid; gap: 12px; padding: 22px;
}
dialog h2 { margin: 0 0 4px; font-size: 19px; }
.admin-created-result pre { max-height: 220px; }
@media (max-width: 800px) {
  .admin-layout { display: block; }
  .admin-nav { display: flex; gap: 5px; overflow: auto; border-right: 0; border-bottom: 1px solid var(--admin-line); }
  .admin-nav button { width: auto; white-space: nowrap; }
  .admin-content { padding: 16px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}