:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --panel: #ffffff;
  --text: #1c1f24;
  --muted: #667085;
  --line: #e2e4e8;
  --accent: #2f5bd3;
  --accent-text: #ffffff;
  --code-bg: #f2f3f5;
  --error: #c62828;
  --error-bg: #fdecea;
  --warn-bg: #fff6df;
  --edge: #8a93a3;

  --k-query: #3f4a5c;
  --k-cte: #7c3aed;
  --k-subquery: #2563eb;
  --k-table: #047857;
  --k-view: #0f766e;
  --k-materialized_view: #0e7490;
  --k-foreign_table: #4d7c0f;
  --k-function: #b45309;
  --k-object: #6b7280;
  --not-found: #dc2626;

  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --panel: #181b21;
    --text: #e6e8ec;
    --muted: #98a1b2;
    --line: #2a2f38;
    --accent: #6e8ff0;
    --accent-text: #0d1117;
    --code-bg: #1f232b;
    --error: #ff8a80;
    --error-bg: #3a1d1d;
    --warn-bg: #3a3218;
    --edge: #6b7385;

    --k-query: #c3cad6;
    --k-cte: #b197fc;
    --k-subquery: #74a7ff;
    --k-table: #3ddc97;
    --k-view: #2dd4bf;
    --k-materialized_view: #38bdf8;
    --k-foreign_table: #a3e635;
    --k-function: #fbbf24;
    --k-object: #9aa3b2;
    --not-found: #f87171;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
}

.top, main, footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.top { padding-top: 22px; padding-bottom: 6px; }
.top h1 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
.top p { margin: 2px 0 0; color: var(--muted); }

footer { color: var(--muted); font-size: 13px; padding-top: 24px; padding-bottom: 32px; }

textarea {
  width: 100%;
  display: block;
  resize: vertical;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  font: 14px/1.5 var(--mono);
  tab-size: 4;
}

textarea:focus, select:focus, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

#form { margin-top: 14px; }

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: 12px 0;
}

.controls label { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.controls label.check { font-weight: 400; }

select, button {
  font: inherit;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
}

button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; padding: 6px 20px; }
button:hover { filter: brightness(1.06); }

.hint { color: var(--muted); font-size: 13px; font-weight: 400; }

.busy { color: var(--muted); font-size: 13px; opacity: 0; transition: opacity 150ms; }
.busy.htmx-request { opacity: 1; }

#result { margin-top: 18px; }

.stmt {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  min-width: 0;
}

.stmt-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 10px; margin-bottom: 12px; }
.badge { font-weight: 600; }
.preview { color: var(--muted); font: 13px var(--mono); overflow-wrap: anywhere; }

.note { color: var(--muted); margin: 4px 0; }
.summary { color: var(--muted); font-size: 13px; margin: 4px 2px 0; }

.error-box {
  border-left: 4px solid var(--error);
  background: var(--error-bg);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 12px;
}

.error-box p { margin: 0 0 6px; }
.error-box pre { margin: 0; white-space: pre-wrap; font: 13px/1.5 var(--mono); }
.caret { color: var(--error); font-weight: 700; }

pre.code {
  margin: 0;
  padding: 12px 14px;
  background: var(--code-bg);
  border-radius: 8px;
  overflow-x: auto;
  font: 13px/1.5 var(--mono);
}

.error-box pre.code { background: transparent; padding: 4px 0 0; }

details.section { margin-top: 12px; }
details.section > summary { cursor: pointer; font-weight: 600; margin-bottom: 8px; }

/* Query structure graph */

.graph-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
}

svg.graph { display: block; }
svg.graph text { font: 13px var(--mono); fill: var(--text); }
svg.graph text.sub { font-size: 11px; fill: var(--muted); }

.node rect { stroke-width: 1.5; }
.edge { fill: none; stroke: var(--edge); stroke-width: 1.4; }
.edge.loop, .edge.back { stroke-dasharray: 4 3; }
.arrowhead { fill: var(--edge); }

.k-query { --c: var(--k-query); }
.k-cte { --c: var(--k-cte); }
.k-subquery { --c: var(--k-subquery); }
.k-table { --c: var(--k-table); }
.k-view { --c: var(--k-view); }
.k-materialized_view { --c: var(--k-materialized_view); }
.k-foreign_table { --c: var(--k-foreign_table); }
.k-function { --c: var(--k-function); }
.k-object { --c: var(--k-object); }

.node rect { fill: color-mix(in srgb, var(--c) 13%, var(--panel)); stroke: var(--c); }
.node.k-query rect { stroke-width: 2.5; }
.node.s-not_found rect { stroke: var(--not-found); stroke-dasharray: 5 3; }

.legend { color: var(--muted); font-size: 13px; margin: 10px 2px 0; line-height: 2; }
.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin: 0 4px 0 10px;
  vertical-align: -1px;
  border-radius: 3px;
  border: 1.5px solid var(--c);
  background: color-mix(in srgb, var(--c) 13%, var(--panel));
}
.swatch.s-not_found { --c: var(--not-found); border-style: dashed; }

.diags {
  margin: 12px 0 0;
  padding: 8px 14px 8px 32px;
  background: var(--warn-bg);
  border-radius: 8px;
}

table.objects { border-collapse: collapse; font-size: 14px; }
table.objects th, table.objects td { text-align: left; padding: 4px 18px 4px 0; border-bottom: 1px solid var(--line); }
table.objects th { color: var(--muted); font-weight: 500; }

/* Syntax tree */

.tree { margin-top: 12px; font: 13px/1.6 var(--mono); overflow-x: auto; }
.tree details > details, .tree details > .leaf {
  margin-left: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}
.tree summary { cursor: pointer; }
.tree .f { color: var(--muted); }
.tree .f::after { content: ": "; }
.tree .t { color: var(--k-cte); font-weight: 600; }
.tree .n { color: var(--muted); }
.tree .n::before { content: "["; }
.tree .n::after { content: "]"; }
.tree .v { color: var(--k-table); }

@media (max-width: 640px) {
  .top h1 { font-size: 22px; }
  .stmt { padding: 12px; }
}

/* Editors */

.editors {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .editors { grid-template-columns: minmax(0, 1fr); }
}

.editor { min-width: 0; }
.editor-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-bottom: 6px;
}
.editor-head > label:first-child { font-weight: 600; }
.editor-head .spacer { flex: 1; }
.editor .check { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; }
.editor textarea#catalog { font-size: 12.5px; }
.editor textarea:invalid { border-color: var(--error); }
button.small { font-size: 13px; padding: 3px 10px; }
.fine { margin: 6px 0 0; line-height: 1.45; }
.fine code { font: 12px var(--mono); }