:root {
  --bg: #ffffff;
  --fg: #1c2330;
  --muted: #5c6678;
  --line: #d5dae3;
  --panel: #f5f7fa;
  --accent: #1a56db;
  --accent-fg: #ffffff;
  --pass: #17692f;
  --fail: #b42318;
  --warn: #8a5a00;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161d;
    --fg: #e6e9ef;
    --muted: #9aa4b5;
    --line: #2b3342;
    --panel: #1a202b;
    --accent: #6ea0ff;
    --accent-fg: #0b1220;
    --pass: #5fd08a;
    --fail: #ff8a80;
    --warn: #f0c060;
  }
}

/* Native controls (select, file input, scrollbars) follow the theme too. */
:root { color-scheme: light dark; }

* { box-sizing: border-box; }

/* Author rules such as `form { display: grid }` beat the browser's own
   [hidden] rule, so app.js's show/hide would silently stop working. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

h1 { font-size: 1.25rem; margin: 0; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.error { color: var(--fail); }

#app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
#nav { display: flex; gap: 1rem; flex: 1; }
#nav a { text-decoration: none; padding: 0.25rem 0; border-bottom: 2px solid transparent; }
#nav a[aria-current="page"] { border-bottom-color: var(--accent); font-weight: 600; }
.who { display: flex; align-items: center; gap: 0.75rem; }

main { max-width: 60rem; margin: 0 auto; padding: 1rem; }
main:focus { outline: none; }
#signin { max-width: 24rem; margin: 3rem auto; padding: 0 1rem; }

form, fieldset { display: grid; gap: 0.75rem; }
form { margin: 1rem 0; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
form p { margin: 0; }
label { display: grid; gap: 0.25rem; font-weight: 600; }
/* Max tokens, temperature and top-p side by side; they wrap at narrow widths. */
.settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap: 0.75rem; }
code { font-family: ui-monospace, Consolas, monospace; }
input, select, textarea, button {
  font: inherit;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.5rem 0.625rem;
}
textarea { min-height: 7rem; resize: vertical; font-family: ui-monospace, Consolas, monospace; }
button {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  cursor: pointer;
  font-weight: 600;
}
button.secondary, #signout { background: transparent; color: var(--fg); border-color: var(--line); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
/* A link styled as a secondary button ("Run again"), next to Mark baseline. */
a.button {
  display: inline-block; padding: 0.5rem 0.625rem; border: 1px solid var(--line);
  border-radius: 6px; color: var(--fg); text-decoration: none; font-weight: 600;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
summary { cursor: pointer; }
details p { margin: 0.25rem 0; font-weight: normal; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* app.js wraps each table in .table-wrap so a wide results table scrolls
   inside its box instead of widening the whole page. */
.table-wrap { overflow-x: auto; margin: 0.5rem 0 1rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
/* Full-size header text: nothing below 16px, for 12 pt in report screenshots. */
th { color: var(--muted); font-weight: 600; }
td.output { white-space: pre-wrap; overflow-wrap: anywhere; max-width: 24rem; }

/* The run page's results: one case per band, so a multi-line receipt, its check
   and the model's reply read as one row. The page widens to fit them. */
main:has(table.results) { max-width: 96rem; }
table.results th, table.results td { padding: 0.75rem; border-right: 1px solid var(--line); }
table.results th:last-child, table.results td:last-child { border-right: 0; }
table.results tbody tr { border-bottom: 2px solid var(--line); }
table.results tbody tr:nth-child(even) { background: var(--panel); }
table.results td:nth-child(2) { min-width: 12rem; }          /* Check */
table.results td.change { min-width: 8rem; }                  /* vs baseline */
/* "fresh" or "cache" over the token counts: short, so it gets no output min-width. */
table.results td.source { white-space: pre; font-family: ui-monospace, Consolas, monospace; }
table.results td.detail { min-width: 10rem; max-width: 16rem; overflow-wrap: anywhere; }
table.results td.output { min-width: 18rem; font-family: ui-monospace, Consolas, monospace; }  /* receipt columns and JSON line up */
table.results td.output:last-child { min-width: 22rem; max-width: 32rem; }  /* the model's reply */

.pass { color: var(--pass); font-weight: 600; }
.fail { color: var(--fail); font-weight: 600; }
.pending { color: var(--warn); font-weight: 600; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 0.75rem 1rem; margin: 0.75rem 0; }
.totals { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.totals div { min-width: 6rem; }
.totals b { display: block; font-size: 1.25rem; }

@media (max-width: 40rem) {
  main { padding: 0.75rem; }
  td.output { max-width: 12rem; }
}