:root {
  --bg: #f6f5f3;
  --surface: #ffffff;
  --sunken: #faf9f7;
  --text: #1d1c1a;
  --muted: #8b867e;
  --line: #e9e6e1;
  --accent: #4a5fd8;
  --accent-soft: #eceffc;
  --ok: #1f8a5b;
  --ok-soft: #e7f4ed;
  --bad: #c2453a;
  --bad-soft: #fbeceb;
  --warn: #a8791f;
  --warn-soft: #fbf3e2;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  --radius: 14px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #111110;
  --surface: #181716;
  --sunken: #141413;
  --text: #ebe9e5;
  --muted: #8a857d;
  --line: #292826;
  --accent: #8b9cf5;
  --accent-soft: #20233a;
  --ok: #52c08d;
  --ok-soft: #14261d;
  --bad: #ef7f73;
  --bad-soft: #2c1a18;
  --warn: #d9a64c;
  --warn-soft: #2a2314;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111110;
    --surface: #181716;
    --sunken: #141413;
    --text: #ebe9e5;
    --muted: #8a857d;
    --line: #292826;
    --accent: #8b9cf5;
    --accent-soft: #20233a;
    --ok: #52c08d;
    --ok-soft: #14261d;
    --bad: #ef7f73;
    --bad-soft: #2c1a18;
    --warn: #d9a64c;
    --warn-soft: #2a2314;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }

/* header */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px 6px;
}
.brand { font-weight: 650; font-size: 16px; letter-spacing: -0.01em; }
.icon-btn {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
}
.icon-btn.small { width: 30px; height: 30px; }
.icon-btn:hover { background: var(--line); color: var(--text); }

.ghost {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.ghost:hover { background: var(--line); color: var(--text); }

/* segmented control */
.seg { display: inline-flex; gap: 2px; }
.seg button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 13px;
  transition: background .15s, color .15s;
}
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent); }

/* layout */
.layout {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  padding: 14px 32px 32px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}
.card.dropping { box-shadow: inset 0 0 0 2px var(--accent); }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 4px 20px;
}
.card-head h2 {
  margin: 0;
  font: 500 12px var(--mono);
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.actions { display: flex; gap: 2px; flex: none; }

/* editor */
.editor {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  font: 13px/21px var(--mono);
  font-variant-ligatures: none;
}
.editor .gutter {
  flex: none;
  min-width: 52px;
  padding: 8px 12px 8px 20px;
  text-align: right;
  color: var(--muted);
  opacity: .55;
  overflow: hidden;
  user-select: none;
  white-space: pre;
  font-variant-numeric: tabular-nums;
}
.editor .gutter .bad { color: var(--bad); opacity: 1; font-weight: 600; }
.editor .gutter .warn { color: var(--warn); opacity: 1; font-weight: 600; }
.editor .stage { position: relative; flex: 1; min-width: 0; }
.editor .hl {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  padding: 8px 0;
}
.editor .hl .lines { width: max-content; min-width: 100%; padding: 0 20px 0 8px; }
.editor .hl .ln { height: 21px; white-space: pre; }
.editor .hl .ln.bad { background: var(--bad-soft); box-shadow: inset 2px 0 0 var(--bad); }
.editor .hl .ln.warn { background: var(--warn-soft); box-shadow: inset 2px 0 0 var(--warn); }
.editor textarea {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 8px 20px 8px 8px;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  font: inherit;
  font-variant-ligatures: none;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
  color: transparent;
  caret-color: var(--text);
}
.editor textarea::selection { background: var(--accent-soft); color: transparent; }
.editor.plain textarea { color: var(--text); }

.t-c { font-style: normal; color: var(--muted); }
.t-d { color: var(--muted); }
.t-s { color: var(--ok); }
.t-k { color: var(--accent); }
.t-t { color: var(--accent); }
.t-m { color: var(--muted); }
.t-u { color: var(--muted); }
.t-f { color: var(--accent); }
i[class^="t-"] { font-style: normal; }

/* tabs */
.tabs { display: flex; gap: 22px; padding: 0 20px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tabs button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 14px 0 12px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color .15s;
}
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.badge {
  margin-left: 7px;
  padding: 0 7px;
  border-radius: 999px;
  background: var(--bad-soft);
  color: var(--bad);
  font-size: 11px;
  font-weight: 600;
}
.badge.warn { background: var(--warn-soft); color: var(--warn); }

.panel { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.scroll { flex: 1; min-height: 0; overflow: auto; padding: 8px 20px 24px; }
.scroll.code { padding: 0; font: 13px/21px var(--mono); }

/* toolbars and fields */
.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px 6px;
}
.bar { flex-wrap: wrap; }
.bar-end { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.tag {
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  cursor: help;
}
.grow { flex: 1; min-width: 0; }
input, select, textarea#bql {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--sunken);
  font: 13px var(--mono);
  color: var(--text);
  outline: 0;
  transition: border-color .15s, box-shadow .15s;
}
select { padding-right: 6px; }
input:focus, select:focus, textarea#bql:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
input[type="checkbox"] { width: 14px; height: 14px; padding: 0; accent-color: var(--accent); }
input[type="date"] { font-size: 12px; }
.check { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.muted { color: var(--muted); font-size: 13px; }

button.primary {
  border: 0;
  border-radius: 9px;
  padding: 6px 18px;
  background: var(--accent);
  color: var(--surface);
  font-weight: 550;
}
button.primary:hover { filter: brightness(1.06); }
button.primary:disabled { background: var(--line); color: var(--muted); cursor: default; filter: none; }

.query-bar { align-items: stretch; }
textarea#bql { flex: 1; min-width: 0; resize: vertical; line-height: 1.5; white-space: pre-wrap; }
.query-bar .primary { align-self: flex-start; }

/* diagnostics */
.summary { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 20px; padding: 20px 20px 0; }
.verdict { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 600; letter-spacing: -0.01em; }
.verdict::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: currentColor; }
.verdict.ok { color: var(--ok); }
.verdict.no { color: var(--bad); }
.facts { display: flex; gap: 18px; color: var(--muted); font-size: 13px; }
.facts b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; margin-right: 4px; }

.issues { list-style: none; margin: 0; padding: 8px 8px 24px; overflow: auto; flex: 1; min-height: 0; }
.issues li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 4px 12px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}
.issues li:hover { background: var(--sunken); }
.issues .pos { font: 12px/1.7 var(--mono); color: var(--muted); text-align: right; }
.issues .msg { color: var(--text); }
.issues .code { grid-column: 2; font: 11px/1.4 var(--mono); color: var(--muted); }
.issues li.error .pos { color: var(--bad); }
.issues li.warning .pos { color: var(--warn); }

/* tables and trees */
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th {
  position: sticky;
  top: 0;
  background: var(--surface);
  text-align: left;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
td { padding: 6px 12px; vertical-align: top; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: 0; }
th.num, td.num { text-align: right; }
td.num, .amt { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
td.num div { line-height: 1.55; }
td.mono { font-family: var(--mono); white-space: nowrap; }
td.dim, .dim { color: var(--muted); }
.truncate { max-width: 360px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.tree { width: 100%; }
.tree .row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 5px 0;
  min-height: 32px;
}
.tree .name { flex: 1; min-width: 0; display: flex; align-items: flex-start; gap: 4px; padding-top: 1px; }
.tree .name span.label { overflow-wrap: anywhere; }
.tree .amts { flex: none; display: flex; flex-direction: column; align-items: flex-end; font: 13px/1.55 var(--mono); font-variant-numeric: tabular-nums; padding-top: 1px; }
.tree .toggle {
  flex: none;
  width: 18px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0;
  border-radius: 5px;
}
.tree .toggle:hover { color: var(--text); background: var(--line); }
.tree .toggle svg { transition: transform .15s; }
.tree .toggle[aria-expanded="true"] svg { transform: rotate(90deg); }
.tree .spacer { flex: none; width: 18px; }
.tree .children { margin-left: 9px; padding-left: 13px; border-left: 1px solid var(--line); }
.tree .root > .row { font-weight: 600; }
.tree .root { padding-top: 10px; }
.tree .root:first-child { padding-top: 0; }
.tree .node:not(.root) > .row .label { font-weight: 400; }
.tree .node.open:not(.root) > .row .amts { color: var(--muted); }
.totals { margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.total { display: flex; align-items: flex-start; gap: 12px; padding: 6px 0 0; font-weight: 600; }
.total .label { flex: 1; min-width: 0; }
.total .amts { flex: none; display: flex; flex-direction: column; align-items: flex-end; font: 600 13px/1.55 var(--mono); font-variant-numeric: tabular-nums; }
.flag { display: inline-block; width: 6px; height: 6px; margin: 8px 0 0 6px; border-radius: 50%; background: var(--warn); flex: none; cursor: help; }

.balance {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 12px;
}
.balance::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.balance.ok { color: var(--ok); }
.balance.no { color: var(--bad); }
.sub { font: 11px/1.5 var(--mono); }

.error { color: var(--bad); font: 13px/1.6 var(--mono); white-space: pre-wrap; word-break: break-word; padding: 14px 20px; }
.error button { border: 0; background: transparent; color: var(--accent); padding: 0; text-decoration: underline; font: inherit; }
.count { color: var(--muted); font-size: 12px; padding: 8px 12px 0; }

/* format preview */
.code .ln { display: flex; height: 21px; white-space: pre; }
.code .ln .no { flex: none; width: 52px; padding-right: 12px; text-align: right; color: var(--muted); opacity: .55; user-select: none; font-variant-numeric: tabular-nums; }
.code .ln.changed { background: var(--accent-soft); }
.code .ln .tx { padding-right: 20px; }
.code .body { padding: 8px 0; width: max-content; min-width: 100%; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 14px 16px 24px; }
  .top { padding: 14px 16px 4px; }
  .editor { flex: none; height: 360px; }
  body { height: auto; display: block; }
  html, body { height: auto; }
  .panel { flex: none; }
  .scroll { max-height: 520px; }
  .bar { flex-wrap: wrap; }
}

@media (min-width: 901px) {
  body { height: 100vh; }
}