/* Polka for schools: the admin page's look, from the app's own (renderer/styles.css).
 *
 * The tokens are the app's, copied for what this page uses, and defined once here: light, dark (as the device is
 * set), and higher contrast (the device's "increase contrast") in each. A component reads hsl(var(--x)) and nothing
 * else, so it is right in all four; backend/account/test/admin.test.mjs checks that no colour is written outside
 * :root. Meaning colours go only with a word: --done (verified), --soon (waiting), --danger (a press that removes,
 * or something that went wrong).
 */
:root {
  --background: 40 30% 97%;
  --card: 40 40% 99.6%;
  --raised: 0 0% 100%;
  --foreground: 30 22% 11%;
  --muted: 38 20% 93%;
  --muted-foreground: 30 10% 36%;
  --border: 36 18% 86%;
  --input: 34 10% 55%;
  --primary: 318 55% 36%;
  --primary-foreground: 0 0% 100%;
  --primary-hover: 318 58% 29%;
  --accent: 318 55% 95%;
  --accent-foreground: 318 55% 30%;
  --soon: 212 72% 35%;
  --soon-bg: 212 85% 95.5%;
  --soon-border: 212 55% 82%;
  --done: 148 62% 24%;
  --done-bg: 146 50% 94%;
  --done-border: 146 36% 78%;
  --danger: 354 70% 39%;
  --ring: 318 55% 42%;
  --mark-lo: 318 52% 46%;
  --backdrop: 30 30% 12% / .35;
  --qr-paper: 0 0% 100%; /* a QR code reads only dark on light, in every theme */

  --f-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow-sm: 0 1px 2px 0 hsl(30 30% 12% / .05);
  --shadow-lg: 0 10px 30px -8px hsl(30 30% 12% / .22), 0 2px 6px hsl(30 30% 12% / .08);
  --radius: .5rem;
  --radius-lg: calc(var(--radius) + 2px);
  --t-fast: 120ms;
  --ease: cubic-bezier(.2, .7, .3, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: 30 6% 10%;
    --card: 30 6% 12.5%;
    --raised: 30 6% 16%;
    --foreground: 36 14% 91%;
    --muted: 30 6% 17%;
    --muted-foreground: 34 8% 67%;
    --border: 30 6% 21%;
    --input: 30 6% 42%;
    --primary: 318 62% 72%;
    --primary-foreground: 318 40% 10%;
    --primary-hover: 318 66% 80%;
    --accent: 318 26% 19%;
    --accent-foreground: 318 70% 84%;
    --soon: 212 88% 75%;
    --soon-bg: 212 36% 15%;
    --soon-border: 212 30% 32%;
    --done: 148 50% 62%;
    --done-bg: 148 28% 13%;
    --done-border: 148 25% 28%;
    --danger: 354 85% 72%;
    --ring: 318 62% 72%;
    --mark-lo: 318 62% 72%;
    --backdrop: 0 0% 0% / .55;
    --shadow-sm: 0 1px 2px 0 hsl(0 0% 0% / .4);
    --shadow-lg: 0 10px 30px -8px hsl(0 0% 0% / .6), 0 2px 6px hsl(0 0% 0% / .4);
    color-scheme: dark;
  }
}

@media (prefers-contrast: more) {
  :root {
    --foreground: 30 30% 5%;
    --muted-foreground: 30 14% 22%;
    --border: 30 10% 52%;
    --input: 30 10% 38%;
    --primary: 318 62% 27%;
    --primary-hover: 318 64% 21%;
    --accent-foreground: 318 62% 23%;
    --ring: 318 62% 27%;
    --soon: 212 82% 25%;
    --done: 148 72% 17%;
    --danger: 354 80% 29%;
    --soon-border: 212 45% 50%;
    --done-border: 146 40% 42%;
  }
}
@media (prefers-contrast: more) and (prefers-color-scheme: dark) {
  :root {
    --foreground: 0 0% 99%;
    --muted-foreground: 36 12% 85%;
    --border: 30 6% 54%;
    --input: 30 6% 64%;
    --primary: 318 76% 83%;
    --primary-hover: 318 80% 89%;
    --accent-foreground: 318 82% 89%;
    --ring: 318 76% 83%;
    --soon: 212 100% 85%;
    --done: 148 62% 75%;
    --danger: 354 100% 83%;
    --soon-border: 212 45% 58%;
    --done-border: 148 35% 50%;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font: 400 16px/1.5 var(--f-ui);
}
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid hsl(var(--ring)); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.25; text-wrap: balance; }
h1 { font-size: 1.6rem; margin: 0 0 .75rem; }
h2 { font-size: 1.2rem; margin: 0; }
h3 { font-size: 1.02rem; margin: 1.5rem 0 .5rem; }
h1:focus, h3:focus { outline: none; }
h1:focus-visible, h3:focus-visible { outline: none; } /* a heading takes the keyboard only to be read from; it is no control */
p { margin: 0 0 .75rem; }
.muted { color: hsl(var(--muted-foreground)); }
.small { font-size: .9rem; }
.mono, code { font-family: var(--f-mono); font-size: .92em; overflow-wrap: anywhere; }
.err { color: hsl(var(--danger)); font-weight: 600; margin: .35rem 0 0; }
.sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip { position: absolute; left: 16px; top: -48px; z-index: 10; padding: .5rem .75rem; background: hsl(var(--raised)); color: hsl(var(--foreground)); border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.skip:focus { top: 8px; }

/* The one bar. */
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  min-height: 52px; padding: 8px 16px;
  border-bottom: 1px solid hsl(var(--border));
  background: hsl(var(--card));
}
.brand { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 700; }
.mark { fill: hsl(var(--mark-lo)); flex: none; }
.bar-end { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.pick { display: flex; align-items: center; gap: 8px; }
.pick label { font-weight: 600; }
.acct { display: flex; align-items: center; gap: 10px; min-width: 0; }
#acctEmail { overflow-wrap: anywhere; }

main { padding: 24px 16px 64px; }
main:focus { outline: none; }
.screen { max-width: 960px; margin: 0 auto; }
.screen.narrow { max-width: 420px; }

/* Fields and buttons. */
.stack { display: flex; flex-direction: column; gap: 12px; margin: 0 0 16px; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; }
.field > .btn { align-self: flex-start; margin-top: 6px; }
input, select, textarea {
  font: inherit; color: inherit;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--input));
  border-radius: var(--radius);
  padding: 9px 11px;
  min-height: 40px;
  width: 100%;
}
textarea { resize: vertical; font-family: var(--f-mono); font-size: .92rem; }
select { width: auto; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: hsl(var(--danger)); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 36px; padding: 6px 14px;
  font: inherit; font-weight: 600;
  color: hsl(var(--foreground));
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.btn:hover { background: hsl(var(--muted)); }
.btn.primary { color: hsl(var(--primary-foreground)); background: hsl(var(--primary)); border-color: hsl(var(--primary)); }
.btn.primary:hover { background: hsl(var(--primary-hover)); border-color: hsl(var(--primary-hover)); }
.btn.danger { color: hsl(var(--danger)); }
.btn.danger.solid { color: hsl(var(--primary-foreground)); background: hsl(var(--danger)); border-color: hsl(var(--danger)); }
.btn.link { background: none; border-color: transparent; color: hsl(var(--primary)); padding-inline: 4px; text-decoration: underline; text-underline-offset: 3px; }
.btn.link:hover { background: none; color: hsl(var(--primary-hover)); }
.btn.wide { width: 100%; min-height: 44px; }
.btn[aria-disabled="true"] { cursor: default; color: hsl(var(--muted-foreground)); }
.btn.primary[aria-disabled="true"] { color: hsl(var(--primary-foreground)); }
.btn.is-busy { cursor: progress; }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }

.or { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: hsl(var(--muted-foreground)); }
.or::before, .or::after { content: ""; flex: 1; border-top: 1px solid hsl(var(--border)); }

.qr { display: block; background: hsl(var(--qr-paper)); padding: 8px; border-radius: var(--radius); border: 1px solid hsl(var(--border)); }
.key { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* Tabs. */
.tabs {
  display: flex; gap: 4px; flex-wrap: wrap;
  border-bottom: 1px solid hsl(var(--border));
  margin: 0 0 20px;
}
.tabs [role="tab"] {
  font: inherit; font-weight: 600;
  color: hsl(var(--muted-foreground));
  background: none; border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  min-height: 40px; padding: 8px 12px;
  cursor: pointer;
}
.tabs [role="tab"]:hover { color: hsl(var(--foreground)); }
.tabs [role="tab"][aria-selected="true"] { color: hsl(var(--accent-foreground)); border-bottom-color: hsl(var(--primary)); }
.panel { background: hsl(var(--card)); border: 1px solid hsl(var(--border)); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); }
.panel:focus { outline: none; }
.panel:focus-visible { outline: 2px solid hsl(var(--ring)); }
.sec-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 0 0 16px; }
.panel > h2 { margin-bottom: 16px; }
.panel > .field { max-width: 420px; margin-bottom: 12px; }

.facts { display: grid; grid-template-columns: max-content 1fr; gap: 10px 20px; margin: 0 0 16px; }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
progress { width: min(240px, 100%); height: 10px; accent-color: hsl(var(--primary)); }

/* Tables scroll in their own box; the page never goes sideways. */
.table-wrap { overflow-x: auto; border: 1px solid hsl(var(--border)); border-radius: var(--radius); margin: 0 0 12px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid hsl(var(--border)); vertical-align: middle; }
th { font-size: .9rem; color: hsl(var(--muted-foreground)); font-weight: 600; background: hsl(var(--muted)); }
tr:last-child td { border-bottom: 0; }
td.act { text-align: right; white-space: nowrap; }
td.act .btn + .btn { margin-left: 8px; }

form.inline { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin: 0 0 16px; }
form.inline .field { flex: 1 1 240px; }
form.inline select { min-width: 120px; }

.cards { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.card { border: 1px solid hsl(var(--border)); border-radius: var(--radius); padding: 14px 16px; background: hsl(var(--card)); }
.card h3 { margin: 0 0 4px; }
.state { display: inline-block; font-weight: 600; font-size: .9rem; padding: 2px 8px; border-radius: 999px; border: 1px solid; margin: 0 0 10px; }
.state.ok { color: hsl(var(--done)); background: hsl(var(--done-bg)); border-color: hsl(var(--done-border)); }
.state.wait { color: hsl(var(--soon)); background: hsl(var(--soon-bg)); border-color: hsl(var(--soon-border)); }
.record { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0 0 12px; padding: 10px 12px; background: hsl(var(--muted)); border-radius: var(--radius); }
.record dt { font-weight: 600; }
.record dd { margin: 0; }
.acts { display: flex; gap: 8px; flex-wrap: wrap; }

.log { list-style: none; margin: 0 0 12px; padding: 0; }
.log li { display: flex; justify-content: space-between; gap: 4px 16px; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid hsl(var(--border)); }
.log li:last-child { border-bottom: 0; }

dialog {
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  background: hsl(var(--raised));
  color: hsl(var(--foreground));
  box-shadow: var(--shadow-lg);
  padding: 20px;
  width: min(440px, calc(100vw - 32px));
}
dialog::backdrop { background: hsl(var(--backdrop)); }
dialog h2 { margin: 0 0 8px; }

@media (max-width: 560px) {
  .facts { grid-template-columns: 1fr; gap: 2px; }
  .facts dd { margin-bottom: 10px; }
  .panel { padding: 16px; }
  .acct #acctEmail { display: none; }
}