:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --line: #d8dee9;
  --text: #1f2937;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --ok: #15803d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  height: 34px;
  border: 1px solid var(--primary);
  border-radius: 6px;
  padding: 0 14px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: var(--primary-dark);
}

button.ghost {
  border-color: var(--line);
  background: #fff;
  color: var(--text);
}

button.danger {
  border-color: var(--danger);
  background: var(--danger);
}

input,
select,
textarea {
  width: 100%;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 72px;
  padding-top: 8px;
  resize: vertical;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

td.actions {
  white-space: nowrap;
}

td.actions button {
  margin-right: 6px;
}

.hidden {
  display: none !important;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(360px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 28px;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.08);
}

.login-panel h1 {
  margin: 0 0 24px;
  font-size: 24px;
}

.login-panel label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.error {
  min-height: 20px;
  color: var(--danger);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 220px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-right: 1px solid var(--line);
  background: #ffffff;
  padding: 20px;
}

.brand {
  display: grid;
  gap: 5px;
}

.brand strong {
  font-size: 18px;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
}

nav {
  display: grid;
  gap: 8px;
}

.nav-item {
  justify-content: flex-start;
  border-color: transparent;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.nav-item.active,
.nav-item:hover {
  border-color: #dbeafe;
  background: #eff6ff;
  color: var(--primary);
}

#logoutBtn {
  margin-top: auto;
}

.main {
  min-width: 0;
  padding: 24px;
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 18px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toolbar h2 {
  margin: 0;
  font-size: 22px;
}

.filters {
  display: grid;
  grid-template-columns: 160px 180px 140px 140px auto;
  gap: 8px;
  align-items: center;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.metrics div,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metrics div {
  padding: 18px;
}

.metrics span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metrics strong {
  display: block;
  margin-top: 8px;
  font-size: 26px;
}

.panel {
  min-width: 0;
  overflow: auto;
  padding: 16px;
}

.panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  background: #f1f5f9;
  color: var(--muted);
  font-size: 12px;
}

.badge.ok {
  background: #dcfce7;
  color: var(--ok);
}

.badge.off {
  background: #fee2e2;
  color: var(--danger);
}

dialog {
  width: min(680px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.38);
}

#editForm {
  padding: 20px;
}

#editForm h3 {
  margin: 0 0 16px;
}

.fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.fields label {
  display: grid;
  gap: 7px;
}

.fields label.full {
  grid-column: 1 / -1;
}

.fields span {
  color: var(--muted);
  font-size: 12px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  border-radius: 6px;
  background: #111827;
  color: #fff;
  padding: 10px 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.2);
}

pre {
  margin: 0;
  white-space: pre-wrap;
}

.url-cell {
  max-width: 460px;
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .filters,
  .metrics,
  .grid.two,
  .fields {
    grid-template-columns: 1fr;
  }
}