/* Style of the SPARQL-Generate website and playground. */

:root {
  --bg: #ffffff;
  --bg-alt: #f5f4f8;
  --fg: #1f1d24;
  --muted: #5f5b6b;
  --border: #dcd8e4;
  --accent: #5b3fb5;
  --accent-fg: #ffffff;
  --error: #b3261e;
  --warn: #8a5a00;
  --info: #1d5fa8;
  --debug: #5f5b6b;
  --code-bg: #f7f6fa;
  --radius: 6px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18171c;
    --bg-alt: #222028;
    --fg: #e8e6ee;
    --muted: #a9a4b6;
    --border: #3a3743;
    --accent: #a48cf0;
    --accent-fg: #18171c;
    --error: #f2b8b5;
    --warn: #f0c36b;
    --info: #8fc1ff;
    --debug: #a9a4b6;
    --code-bg: #282c34;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

a { color: var(--accent); }

code, pre, kbd { font-family: var(--mono); font-size: 0.9em; }

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
}

.site-header nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; }
.site-header nav a { color: var(--fg); text-decoration: none; padding: 0.2rem 0; border-bottom: 2px solid transparent; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { border-bottom-color: var(--accent); }

.site-footer {
  margin-top: 3rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}
.site-footer p { margin: 0.25rem 0; max-width: 60rem; }

/* pages */

.page { max-width: 60rem; margin: 0 auto; padding: 1rem; }
.page h1 { font-size: 2rem; line-height: 1.2; margin: 1.5rem 0 1rem; }
.page h2 { margin-top: 2.5rem; }
.lead { font-size: 1.15rem; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem 2rem; }
.page pre { background: var(--code-bg); padding: 0.75rem 1rem; border-radius: var(--radius); overflow-x: auto; }
.page table { border-collapse: collapse; }
.page td, .page th { padding: 0.15rem 0.5rem; vertical-align: baseline; }
.grammar { overflow-x: auto; }
.grammar table tr:nth-child(odd) { background: var(--bg-alt); }

/* buttons and controls */

.button, button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
}
.button:hover, button:hover:not(:disabled) { border-color: var(--accent); }
.button.primary, button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 600; }
button:disabled { opacity: 0.5; cursor: default; }
button.small { padding: 0.15rem 0.5rem; font-size: 0.8rem; }

select, input[type="text"] {
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
  min-width: 0;
}
input[type="text"].invalid { border-color: var(--error); }

label { font-size: 0.9rem; }

/* playground */

body.app { min-height: 100vh; display: flex; flex-direction: column; }
body.app .site-footer { margin-top: 1rem; }

.playground { flex: 1; display: flex; flex-direction: column; gap: 0.75rem; padding: 0.75rem 1rem; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem; }
.toolbar .spacer { flex: 1; }
.toolbar select { max-width: 22rem; }
.toggles { display: flex; flex-wrap: wrap; gap: 0.25rem 0.75rem; }
.toggles label { display: inline-flex; align-items: center; gap: 0.3rem; white-space: nowrap; }

.readme {
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg-alt);
  padding: 0.25rem 1rem;
}
.readme[hidden] { display: none; }
.readme summary { cursor: pointer; padding: 0.4rem 0; font-weight: 600; }
.readme .content { max-height: 24rem; overflow: auto; }
.readme pre { background: var(--code-bg); padding: 0.5rem; border-radius: var(--radius); overflow-x: auto; }

.columns { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.75rem; }
@media (min-width: 1000px) {
  .columns { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
  .outputs { position: sticky; top: 0.75rem; }
}

.panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); min-width: 0; }
.panel + .panel { margin-top: 0.75rem; }
.panel-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: var(--radius) var(--radius) 0 0;
}
.panel-header h2 { font-size: 0.95rem; margin: 0; flex: 1; }
.panel-body { padding: 0.5rem; }

.editor .cm-editor { border: 1px solid var(--border); border-radius: 4px; font-size: 0.85rem; }
.editor .cm-editor.cm-focused { outline: 2px solid var(--accent); outline-offset: -1px; }
.editor .cm-scroller { font-family: var(--mono); }
#query-editor .cm-editor { min-height: 14rem; max-height: 70vh; }
#result-editor .cm-editor { min-height: 14rem; max-height: 60vh; }
.item .cm-editor { max-height: 22rem; }

.tabs { display: flex; flex-wrap: wrap; gap: 0.25rem; flex: 1; }
.tabs button { border-radius: var(--radius) var(--radius) 0 0; }
.tabs button[aria-selected="true"] { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.count { font-size: 0.75rem; color: var(--muted); }

.item { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.4rem; margin-bottom: 0.5rem; }
.item-header { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin-bottom: 0.4rem; }
.item-header input.uri { flex: 3 1 14rem; font-family: var(--mono); font-size: 0.8rem; }
.item-header input.media { flex: 1 1 8rem; font-family: var(--mono); font-size: 0.8rem; }
.item-message { color: var(--error); font-size: 0.8rem; margin: 0.2rem 0; }
.item.collapsed .editor { display: none; }

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}
.drop-zone.over { border-color: var(--accent); color: var(--accent); }

.status { font-size: 0.8rem; color: var(--muted); font-weight: normal; }
.status.running { color: var(--info); }
.status.error { color: var(--error); }

.log {
  margin: 0;
  padding: 0.5rem;
  max-height: 22rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--code-bg);
  border-radius: 0 0 var(--radius) var(--radius);
}
.log .ERROR, .log .FATAL { color: var(--error); }
.log .WARN { color: var(--warn); }
.log .INFO { color: var(--info); }
.log .DEBUG, .log .TRACE { color: var(--debug); }

.toast {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  max-width: 24rem;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius);
  background: var(--fg);
  color: var(--bg);
  font-size: 0.9rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }