:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1d232a;
  --muted: #667085;
  --line: #d9dee7;
  --accent: #2364aa;
  --accent-strong: #174d85;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 20px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
}

h2 {
  font-size: 18px;
}

h3 {
  margin-top: 24px;
  margin-bottom: 10px;
  font-size: 15px;
}

#identity {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 22px;
}

button,
input,
select {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

button {
  padding: 0 12px;
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

input,
select {
  padding: 0 10px;
}

.dev-auth,
.toolbar,
.tabs {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.tabs {
  margin-bottom: 18px;
}

.tabs button {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line);
}

.tabs button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.summary-grid,
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.metric,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

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

.metric strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.panel {
  display: grid;
  gap: 8px;
  align-content: start;
}

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: #fbfcfe;
}

#toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: 420px;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: 160ms ease;
  pointer-events: none;
}

#toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 760px) {
  .app-header {
    align-items: stretch;
    flex-direction: column;
  }

  main {
    padding: 14px;
  }
}