:root {
  --bg: #f4f6f8;
  --panel: #fff;
  --text: #1c2430;
  --muted: #667085;
  --line: #e4e7ec;
  --brand: #0f766e;
  --brand-dark: #115e59;
  --danger: #b42318;
  --ok: #067647;
  --warn: #b54708;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card, .app-shell .main, dialog {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.login-card {
  width: min(420px, 100%);
  padding: 28px;
  display: grid;
  gap: 12px;
}
.login-card h1, .topbar h2, .brand { margin: 0; }
.muted, .form-error, td .muted { color: var(--muted); font-size: 14px; }
.form-error { color: var(--danger); min-height: 1.2em; }
label { display: grid; gap: 6px; font-size: 14px; }
input, select {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
}
button[type="submit"], .primary {
  background: var(--brand);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
}
button[type="submit"]:hover, .primary:hover { background: var(--brand-dark); }
.ghost, .sidebar nav button, #logout-button, #password-button, #drawer-close {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
}

.app-shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: #102027;
  color: #ecfeff;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.brand { font-weight: 700; padding: 6px 10px; }
.sidebar nav { display: grid; gap: 6px; }
.sidebar nav button {
  color: inherit;
  text-align: left;
  border-color: transparent;
}
.sidebar nav button.active, .sidebar nav button:hover { background: #164e63; }
.sidebar-foot { margin-top: auto; display: grid; gap: 8px; }
.sidebar-foot button { color: inherit; }
.main { margin: 16px; padding: 0 0 24px; border: 0; background: transparent; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.card, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.card strong { display: block; font-size: 28px; margin-top: 6px; }
.health { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 20px; }
.pill { border-radius: 999px; padding: 4px 10px; font-size: 13px; background: #eef2f6; }
.pill.ok { background: #ecfdf3; color: var(--ok); }
.pill.error, .pill.unconfigured { background: #fef3f2; color: var(--danger); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.mono { font-family: ui-monospace, Consolas, monospace; word-break: break-all; }
.row-actions, .setting-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.settings-grid { display: grid; gap: 14px; }
.setting-group { display: grid; gap: 10px; }
.setting-group h3 { margin: 0; }
.danger { background: #b42318; color: #fff; border: 0; border-radius: 10px; padding: 8px 12px; }
.ok-btn { background: var(--ok); color: #fff; border: 0; border-radius: 10px; padding: 8px 12px; }
dialog { width: min(720px, 94vw); padding: 18px; border: 1px solid var(--line); }
.drawer-head { display: flex; justify-content: space-between; align-items: center; }
#drawer-body { display: grid; gap: 10px; margin-top: 12px; }
.status { text-transform: none; }

@media (max-width: 840px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; }
  .sidebar nav { grid-auto-flow: column; overflow: auto; }
  .sidebar-foot { margin-top: 0; width: 100%; }
}