:root {
  --bg: #f7f6f1;
  --panel: #ffffff;
  --text: #1d2420;
  --muted: #66706a;
  --line: #dedbd0;
  --accent: #17402f;
  --accent-text: #ffffff;
  --flower: #e9a800;
  --code-bg: #fcfbf7;
  --gutter: #9aa29d;
  --error: #c4291c;
  --warning: #a86400;
  --error-bg: #fdf0ee;
  --warning-bg: #fdf6e9;
  /* Colours of the code. */
  --c-step: #8a3ffc;
  --c-keyword: #b5179e;
  --c-string: #1a7f37;
  --c-number: #0a6fb5;
  --c-comment: #7d8781;
  --c-function: #9c5b00;
  --c-constant: #0a6fb5;
  --c-param: #c4291c;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121614;
    --panel: #1a1f1c;
    --text: #e6e9e7;
    --muted: #98a29c;
    --line: #2d3430;
    --accent: #f4c430;
    --accent-text: #17201b;
    --code-bg: #151a17;
    --gutter: #5f6964;
    --error: #ff7b6e;
    --warning: #f0b45a;
    --error-bg: #2b1a18;
    --warning-bg: #2b2416;
    --c-step: #c3a6ff;
    --c-keyword: #ff8ad8;
    --c-string: #7ee2a0;
    --c-number: #79c0ff;
    --c-comment: #7d8781;
    --c-function: #f4c430;
    --c-constant: #79c0ff;
    --c-param: #ff9e94;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}

a {
  color: inherit;
}

.muted {
  color: var(--muted);
  font-weight: 400;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
}

.bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 17px;
  text-decoration: none;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  flex: 1;
}

.controls label,
.query-choice {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

select,
button {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 10px;
}

select {
  max-width: 260px;
}

button {
  cursor: pointer;
}

button:hover,
select:hover {
  border-color: var(--muted);
}

#share {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.links {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
}

.pane {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.pane-head {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 34px;
}

.pane-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
}

.pane-head .hint {
  flex: 1;
}

.pane-head #copy {
  margin-left: auto;
}

.editor {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--code-bg);
  overflow: hidden;
  height: min(62vh, 560px);
}

.gutter {
  flex: none;
  padding: 12px 8px 12px 12px;
  min-width: 44px;
  text-align: right;
  color: var(--gutter);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 21px;
  white-space: pre;
  overflow: hidden;
  user-select: none;
  border-right: 1px solid var(--line);
}

.code {
  position: relative;
  flex: 1;
  min-width: 0;
}

.layer,
#query {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 12px 14px;
  border: 0;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 21px;
  white-space: pre;
  tab-size: 4;
  overflow: auto;
  letter-spacing: 0;
}

.layer {
  pointer-events: none;
  overflow: hidden;
}

.marks {
  color: transparent;
}

.marks .error {
  text-decoration: underline wavy var(--error);
  text-decoration-skip-ink: none;
  text-underline-offset: 3px;
}

.marks .warning {
  text-decoration: underline wavy var(--warning);
  text-decoration-skip-ink: none;
  text-underline-offset: 3px;
}

#query {
  resize: none;
  background: transparent;
  color: transparent;
  caret-color: var(--text);
  outline: none;
}

#query::selection {
  background: color-mix(in srgb, var(--flower) 35%, transparent);
  color: transparent;
}

.editor:focus-within {
  border-color: var(--muted);
}

.schema {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 8px 12px;
}

.schema summary {
  cursor: pointer;
  font-weight: 600;
}

.schema[open] summary {
  margin-bottom: 8px;
}

.schema .hint {
  margin-bottom: 8px;
}

#schema {
  width: 100%;
  height: 220px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 19px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--code-bg);
  color: var(--text);
  white-space: pre;
  tab-size: 4;
}

.output {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--code-bg);
  height: min(62vh, 560px);
  overflow: auto;
  padding: 12px 14px;
}

.sql {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 21px;
  white-space: pre;
}

#params:not(:empty) {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 13px;
}

#params table {
  border-collapse: collapse;
}

#params td {
  padding: 2px 16px 2px 0;
  vertical-align: top;
}

#params .label {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 4px;
}

.problem {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 19px;
  white-space: pre;
  overflow-x: auto;
}

.problem.error {
  background: var(--error-bg);
  border-left: 3px solid var(--error);
}

.problem.warning {
  background: var(--warning-bg);
  border-left: 3px solid var(--warning);
}

.status {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

footer {
  padding: 4px 16px 24px;
  color: var(--muted);
  font-size: 13px;
}

footer p {
  margin: 0;
  max-width: 900px;
}

/* Colours of the code. */
.t-step {
  color: var(--c-step);
  font-weight: 600;
}

.t-keyword {
  color: var(--c-keyword);
}

.t-string {
  color: var(--c-string);
}

.t-number {
  color: var(--c-number);
}

.t-comment {
  color: var(--c-comment);
  font-style: italic;
}

.t-function {
  color: var(--c-function);
}

.t-constant {
  color: var(--c-constant);
}

.t-param {
  color: var(--c-param);
  font-weight: 600;
}

@media (max-width: 860px) {
  main {
    grid-template-columns: minmax(0, 1fr);
  }

  .editor,
  .output {
    height: 46vh;
  }

  .links {
    width: 100%;
  }
}