:root {
  color-scheme: light;
  --ink: #151a23;
  --muted: #667085;
  --line: #d6dce6;
  --surface: #ffffff;
  --soft: #f3f6fa;
  --nav: #101828;
  --accent: #0f766e;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

body.locked {
  display: block;
}

body.locked .sidebar,
body.locked main {
  display: none;
}

body:not(.locked) .login-screen {
  display: none;
}

.login-screen {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, .08), rgba(180, 35, 24, .06)),
    var(--soft);
}

.login-card {
  display: grid;
  gap: 14px;
  width: min(380px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(16, 24, 40, .16);
  padding: 26px;
}

.login-card img {
  width: 96px;
  height: 70px;
  object-fit: contain;
}

.login-card h1 {
  font-size: 24px;
}

.login-card label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.login-card button {
  background: #eef6f4;
  color: var(--accent);
  font-weight: 700;
}

#loginHint {
  min-height: 20px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px 14px;
  background: var(--nav);
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  margin-bottom: 18px;
  padding: 0 8px;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand strong,
.brand span {
  display: block;
}

.brand span {
  margin-top: 3px;
  color: #aeb8c8;
  font-size: 13px;
}

.nav {
  display: block;
  width: 100%;
  min-height: 42px;
  margin-bottom: 6px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #d0d5dd;
  padding: 10px 12px;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.nav:hover,
.nav.active {
  background: #1d2939;
  color: #fff;
}

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

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

#adminUser {
  color: var(--muted);
  font-size: 13px;
}

.header p {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 18px;
}

button,
input,
select,
textarea {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  padding: 8px 11px;
  font: inherit;
}

textarea {
  resize: vertical;
}

button {
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat,
.panel,
.form-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.stat {
  min-height: 96px;
  padding: 16px;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.stat strong {
  display: block;
  margin-top: 10px;
  font-size: 27px;
}

.panel {
  margin-bottom: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
}

.panel-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  min-width: min(280px, 100%);
}

.panel-tools select {
  width: min(220px, 100%);
}

.panel-tools button {
  background: #eef6f4;
  color: var(--accent);
  font-weight: 700;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
  padding: 14px;
}

.form-row button {
  background: #eef6f4;
  color: var(--accent);
  font-weight: 700;
}

.settings-form {
  display: block;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  padding: 16px;
}

.settings-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.settings-grid input,
.settings-grid select,
.settings-grid textarea {
  width: 100%;
  color: var(--ink);
  font-weight: 400;
}

.settings-grid .wide {
  grid-column: 1 / -1;
}

.settings-grid.one-col {
  grid-template-columns: 1fr;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}

.security-panel {
  margin-bottom: 14px;
}

.form-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  border-top: 1px solid var(--line);
  padding: 14px 16px;
}

.form-actions button {
  background: #eef6f4;
  color: var(--accent);
  font-weight: 700;
}

button.secondary {
  background: var(--surface);
  color: var(--muted);
}

button.danger {
  border-color: #fecdca;
  background: #fff7f7;
  color: var(--danger);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  background: #eef6f4;
  color: var(--accent);
  padding: 4px 9px;
  font-size: 13px;
  font-weight: 700;
}

.badge.warn {
  background: #fff7ed;
  color: #b45309;
}

.badge.off {
  background: #fef2f2;
  color: var(--danger);
}

.row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.row-actions button {
  min-height: 30px;
  padding: 5px 8px;
  font-size: 13px;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 54px;
  border-top: 1px solid var(--line);
  padding: 10px 14px;
}

.pager span {
  color: var(--muted);
  font-size: 13px;
}

.pager button {
  min-height: 32px;
  padding: 5px 9px;
}

.compact-cell {
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mono {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.num {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #e8eef6;
  font-size: 12px;
  font-weight: 800;
}

#toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: none;
  max-width: min(420px, calc(100vw - 48px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 45px rgba(16, 24, 40, 0.16);
  padding: 12px 14px;
}

#toast.show {
  display: block;
}

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

  .sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    height: auto;
  }

  .brand {
    width: 100%;
  }

  .nav {
    width: auto;
  }

  main {
    padding: 16px;
  }
}