:root {
  --paper: #f4f6f7;
  --panel: #ffffff;
  --ink: #1d2833;
  --ink-2: #4a5866;
  --ink-3: #7b8895;
  --line: #d3dae0;
  --line-2: #e6ebef;
  --action: #2b55d9;
  --action-ink: #ffffff;
  --action-soft: #e8eefc;
  --ok: #0e8a63;
  --ok-soft: #e3f4ed;
  --fault: #c23b22;
  --fault-soft: #fbe9e5;
  --warn: #9a6200;
  --warn-soft: #fbf1dc;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
  --r-sm: 4px;
  --r-md: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 1.0625rem; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.015em; }
h3 { font-size: 0.9375rem; font-weight: 600; }
p { margin: 0; }
code, pre, .mono { font-family: var(--mono); font-size: 0.8125rem; }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.small { font-size: 0.8125rem; }
[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--action); outline-offset: 2px; }

/* ---------- controls ---------- */
button, .btn {
  font: 500 0.875rem/1 var(--sans);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: var(--r-sm);
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  white-space: nowrap;
}
button:hover { border-color: var(--ink-3); }
button.primary { background: var(--action); color: var(--action-ink); border-color: var(--action); }
button.primary:hover { background: #2348bd; }
button.danger { color: var(--fault); }
button.danger:hover { border-color: var(--fault); }
button.quiet { border-color: transparent; background: transparent; color: var(--ink-2); padding: 0.4rem 0.5rem; }
button.quiet:hover { color: var(--ink); background: var(--line-2); }
button:disabled { opacity: 0.5; cursor: default; }

input, select, textarea {
  font: 0.875rem/1.3 var(--sans);
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.5rem 0.6rem;
  width: 100%;
  min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--action); box-shadow: 0 0 0 3px var(--action-soft); }
textarea { font-family: var(--mono); font-size: 0.8125rem; resize: vertical; }
input[type="checkbox"] { width: auto; accent-color: var(--action); }
.field { display: grid; gap: 0.3rem; font-size: 0.8125rem; color: var(--ink-2); font-weight: 500; }
label.check { display: inline-flex; gap: 0.45rem; align-items: center; font-size: 0.875rem; color: var(--ink); cursor: pointer; }

/* ---------- sign in ---------- */
.signin {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem 1rem;
}
.signin form {
  width: min(400px, 100%);
  display: grid;
  gap: 1rem;
}
.signin .board {
  display: flex;
  gap: 6px;
  margin-bottom: 0.5rem;
}
.signin .board span { width: 12px; height: 12px; border-radius: 50%; background: var(--line); }
.signin .board span:nth-child(3) { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.signin h2 { font-size: 1.75rem; letter-spacing: -0.025em; }
.signin .error { color: var(--fault); font-size: 0.875rem; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 5;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar-row {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.7rem 1.25rem;
  flex-wrap: wrap;
}
.demo-pick { display: flex; align-items: center; gap: 0.5rem; min-width: 0; }
.demo-pick select { width: auto; font-weight: 600; padding-right: 2rem; }
.spacer { flex: 1; }

/* the switchboard: one lamp per table */
.lamps {
  display: flex; align-items: center; gap: 0.25rem;
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
}
.lamp {
  display: inline-flex; align-items: center; gap: 0.45rem;
  border: 0; background: transparent;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  font: 500 0.8125rem/1 var(--sans);
  color: var(--ink-2);
}
.lamp:hover { background: var(--panel); }
.lamp i {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--line);
  flex: none;
}
.lamp.ok i { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.lamp.fault i { background: var(--fault); box-shadow: 0 0 0 3px var(--fault-soft); }
.lamp.fault { color: var(--fault); }
.lamp.checking i { animation: blink 0.9s ease-in-out infinite; background: var(--ink-3); }
@keyframes blink { 50% { opacity: 0.25; } }
@media (prefers-reduced-motion: reduce) { .lamp.checking i { animation: none; } }
.ready { font-size: 0.8125rem; font-weight: 600; padding: 0 0.4rem 0 0.2rem; }
.ready.ok { color: var(--ok); }
.ready.fault { color: var(--fault); }

.tabs { display: flex; gap: 0.25rem; padding: 0 1.25rem; }
.tabs button {
  border: 0; border-radius: 0; background: none;
  padding: 0.7rem 0.75rem 0.65rem;
  color: var(--ink-2);
  border-bottom: 2px solid transparent;
  font-weight: 600;
}
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--action); }
.tabs button:hover { color: var(--ink); }

.health-detail {
  margin: 0.75rem 1.25rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--fault);
  background: var(--fault-soft);
  border-radius: var(--r-sm);
  display: grid; gap: 0.25rem;
  font-size: 0.875rem;
}

/* ---------- workspace ---------- */
main { padding: 1.25rem; max-width: 1440px; margin: 0 auto; }
.workspace {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}
.side {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 0.5rem;
  display: grid; gap: 2px;
  position: sticky; top: 7.5rem;
}
.side-head { display: flex; justify-content: space-between; align-items: center; padding: 0.5rem 0.6rem 0.4rem; }
.side-head h3 { color: var(--ink-2); font-size: 0.8125rem; }
.side button.item {
  border: 0; text-align: left; width: 100%;
  padding: 0.55rem 0.6rem;
  display: grid; gap: 0.15rem;
  white-space: normal;
}
.side button.item:hover { background: var(--paper); }
.side button.item[aria-current="true"] { background: var(--action-soft); color: var(--action); }
.side .item small { color: var(--ink-3); font-weight: 400; font-size: 0.75rem; }
.side .item[aria-current="true"] small { color: var(--action); opacity: 0.8; }

.pane {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  min-width: 0;
}
.pane-head {
  display: flex; align-items: flex-start; gap: 1rem; flex-wrap: wrap;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--line-2);
}
.pane-head > div:first-child { flex: 1; min-width: 220px; display: grid; gap: 0.3rem; }
.pane-body { padding: 1.25rem; display: grid; gap: 1.25rem; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }

.chip {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font: 500 0.75rem/1 var(--sans);
  padding: 0.3rem 0.5rem;
  border-radius: 999px;
  background: var(--line-2); color: var(--ink-2);
}
.chip.ok { background: var(--ok-soft); color: var(--ok); }
.chip.fault { background: var(--fault-soft); color: var(--fault); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.action { background: var(--action-soft); color: var(--action); }

.empty { padding: 3rem 1.5rem; text-align: center; color: var(--ink-2); display: grid; gap: 0.75rem; justify-items: center; }

/* ---------- test console ---------- */
.console { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 1.25rem; }
.params { display: grid; gap: 0.85rem; align-content: start; }
.param-label { display: flex; gap: 0.4rem; align-items: baseline; }
.param-label .req { color: var(--fault); }
.body-preview, .response pre {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  padding: 0.75rem 0.85rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 520px;
}
.response { display: grid; gap: 0.6rem; align-content: start; }
.response-head { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; min-height: 2rem; }
.response.fault pre { border-color: #efc6bd; background: #fff8f6; }
.hint { padding: 0.6rem 0.8rem; background: var(--warn-soft); border-radius: var(--r-sm); font-size: 0.875rem; color: #6b4500; }

/* ---------- data grid ---------- */
.grid-wrap { overflow: auto; border-top: 1px solid var(--line-2); max-height: calc(100vh - 16rem); }
table.grid { border-collapse: separate; border-spacing: 0; width: max-content; min-width: 100%; font-size: 0.875rem; }
.grid th, .grid td { border-bottom: 1px solid var(--line-2); border-right: 1px solid var(--line-2); text-align: left; vertical-align: top; }
.grid th {
  position: sticky; top: 0; z-index: 1;
  background: var(--paper);
  font-weight: 600; font-size: 0.8125rem; color: var(--ink-2);
  padding: 0.55rem 0.7rem;
  white-space: nowrap;
}
.grid td { padding: 0; max-width: 340px; }
.grid td .cell {
  display: block; width: 100%; min-height: 2.25rem;
  padding: 0.5rem 0.7rem;
  border: 0; border-radius: 0; background: none;
  text-align: left; font: inherit; color: inherit;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  cursor: text;
}
.grid td .cell:hover { background: var(--action-soft); }
.grid td .cell.locked { cursor: default; color: var(--ink-3); }
.grid td .cell.locked:hover { background: none; }
.grid td input.edit { border: 0; border-radius: 0; box-shadow: inset 0 0 0 2px var(--action); padding: 0.5rem 0.7rem; min-width: 180px; }
.grid td.idcol { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-3); padding: 0.6rem 0.7rem; white-space: nowrap; }
.grid td.rowact { padding: 0.25rem; white-space: nowrap; }
.grid tr.saving td { opacity: 0.55; }
.grid tr.flash td { animation: flash 1.2s ease-out; }
@keyframes flash { from { background: var(--ok-soft); } }
@media (prefers-reduced-motion: reduce) { .grid tr.flash td { animation: none; } }
.grid tr.newrow td { background: #fafbfd; }
.grid tr.newrow input { border: 0; border-radius: 0; background: transparent; padding: 0.5rem 0.7rem; }
.grid-foot { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1.25rem; flex-wrap: wrap; }

/* ---------- config editor ---------- */
.banner {
  display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap;
  padding: 0.75rem 1rem;
  border-radius: var(--r-sm);
  background: var(--paper);
  border: 1px solid var(--line-2);
  font-size: 0.875rem;
}
.banner.override { background: var(--action-soft); border-color: #cfdaf8; }
.banner.unsaved { background: var(--warn-soft); border-color: #f0dcae; }
.problems { padding: 0.85rem 1rem; border-radius: var(--r-sm); background: var(--fault-soft); color: #7c2414; font-size: 0.875rem; }
.problems ul { margin: 0.4rem 0 0; padding-left: 1.2rem; display: grid; gap: 0.2rem; }
.problems.clear { background: var(--ok-soft); color: #0a5c42; }

.row { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); align-items: end; }
.section { display: grid; gap: 0.9rem; padding-top: 1.25rem; border-top: 1px solid var(--line-2); }
.section:first-child { padding-top: 0; border-top: 0; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

.rows { display: grid; gap: 0.5rem; }
.rows .line {
  display: grid; gap: 0.5rem; align-items: center;
  padding: 0.5rem; border: 1px solid var(--line-2); border-radius: var(--r-sm); background: var(--paper);
}
.rows .line.tables { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto auto; }
.rows .line.filters { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr) minmax(0, 0.9fr) auto auto; }
.rows .line.where { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; }
.rows .colhead { display: grid; gap: 0.5rem; padding: 0 0.5rem; font-size: 0.75rem; color: var(--ink-3); font-weight: 500; }
.colhead.tables { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto auto; }
.colhead.filters { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr) minmax(0, 0.9fr) auto auto; }
.colhead.where { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; }
.colhead .pad { width: 2.25rem; }
.colhead .padw { width: 5.5rem; }

.seg { justify-self: start; display: inline-flex; border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 0.45rem 0.75rem; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--ink); color: #fff; }

.json-edit { min-height: 520px; line-height: 1.5; }

dialog {
  border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 1.25rem; width: min(440px, calc(100vw - 2rem));
  color: var(--ink);
}
dialog::backdrop { background: rgba(29, 40, 51, 0.35); }
dialog form { display: grid; gap: 1rem; }

#toast {
  position: fixed; left: 50%; bottom: 1.25rem; transform: translate(-50%, 1rem);
  background: var(--ink); color: #fff;
  padding: 0.65rem 1rem; border-radius: var(--r-md);
  font-size: 0.875rem; opacity: 0; pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
  max-width: calc(100vw - 2rem); z-index: 20;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#toast.fault { background: var(--fault); }

/* ---------- small screens ---------- */
@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
  .side { position: static; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .side-head { grid-column: 1 / -1; }
  .console { grid-template-columns: 1fr; }
  .rows .line.filters, .colhead.filters { grid-template-columns: 1fr 1fr; }
  .colhead.filters { display: none; }
}
@media (max-width: 600px) {
  main { padding: 1rem; }
  .topbar-row { padding: 0.6rem 1rem; }
  .demo-pick { width: 100%; }
  .demo-pick select { flex: 1; width: 100%; }
  .tabs { padding: 0 0.5rem; overflow-x: auto; }
  .lamps { order: 3; width: 100%; overflow-x: auto; border-radius: var(--r-md); }
  .rows .line.tables { grid-template-columns: 1fr 1fr; }
  .colhead.tables { display: none; }
  .pane-head, .pane-body { padding: 1rem; }
}