/* Back Office View. One hand-written stylesheet carrying §05's tokens (D2): no framework, no web
   fonts, nothing inline - the CSP is style-src 'self'. Dark mode has its own steps of the same
   palette, not inverted colours. */

:root {
  color-scheme: light dark;

  --ground: #F1F3F6;
  --surface: #FFFFFF;
  --surface-2: #E7ECF1;
  --ink: #161B21;
  --ink-2: #485362;
  --ink-3: #76818E;
  --rule: #D2D9E1;
  --rule-2: #B2BCC7;
  --shadow: 0 1px 2px rgba(22, 27, 33, .05), 0 8px 24px -12px rgba(22, 27, 33, .14);

  --accent: #2a78d6;          /* §05 slot 1 */
  --accent-ink: #1c5cab;
  --on-accent: #FFFFFF;

  /* §05 status: states only, always with an icon and a label. */
  --good: #0ca30c;
  --good-ink: #006300;
  --warn: #fab219;
  --warn-ink: #7a5200;
  --serious: #ec835a;
  --crit: #d03b3b;
  --crit-ink: #a3262a;
  --gray: #898781;

  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #12161B;
    --surface: #191F26;
    --surface-2: #212932;
    --ink: #DEE4EB;
    --ink-2: #A0ACB9;
    --ink-3: #76828E;
    --rule: #2B343E;
    --rule-2: #3C4753;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 28px -14px rgba(0, 0, 0, .6);

    --accent: #3987e5;
    --accent-ink: #9ec5f4;
    --on-accent: #0b1220;

    --good-ink: #4cc94c;
    --warn-ink: #fab219;
    --crit-ink: #ef8a8a;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.5 var(--font);
}

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

h1 { font-size: 1.5rem; line-height: 1.25; margin: 0 0 .25rem; }

code, .code { font-family: var(--mono); font-size: .92em; }

.code {
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--ink-2);
}

/* Header ------------------------------------------------------------------------------------ */

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}

.brand {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: .01em;
}

.who {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-2);
  min-width: 0;
}

.who-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.who form { margin: 0; }

/* Page ---------------------------------------------------------------------------------------- */

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.lede { margin: 0 0 20px; color: var(--ink-2); }

.note { color: var(--ink-3); font-size: .9rem; max-width: 70ch; }

.empty {
  padding: 24px;
  border: 1px dashed var(--rule-2);
  border-radius: var(--radius);
  color: var(--ink-2);
  background: var(--surface);
}

.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.narrow { max-width: 440px; margin: 24px auto; }

.notice {
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--rule);
}

.notice-error {
  border-color: color-mix(in srgb, var(--crit) 45%, var(--rule));
  background: color-mix(in srgb, var(--crit) 10%, var(--surface));
  color: var(--crit-ink);
}

/* Forms ----------------------------------------------------------------------------------- */

.form { display: grid; gap: 6px; margin-top: 16px; }

.form label { font-weight: 600; margin-top: 8px; }

.form input {
  width: 100%;
  font: inherit;
  padding: 9px 11px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-2);
  border-radius: 6px;
}

.form input:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hint { margin: 0; color: var(--ink-3); font-size: .88rem; }

button, .button {
  font: inherit;
  cursor: pointer;
  border-radius: 6px;
  border: 1px solid var(--rule-2);
  background: var(--surface-2);
  color: var(--ink);
  padding: 9px 16px;
  text-decoration: none;
  display: inline-block;
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.form .primary { margin-top: 14px; }

button.link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent-ink);
  text-decoration: underline;
}

/* Enrolment ------------------------------------------------------------------------------ */

.qr { margin: 16px 0 0; text-align: center; }

.qr svg {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--rule);
}

.qr figcaption { margin-top: 8px; color: var(--ink-2); font-size: .9rem; }

.secret { word-break: break-all; }

.codes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 24px;
  padding-left: 1.6em;
  font-family: var(--mono);
}

/* SY-1: the status board and its chip ------------------------------------------------------ */

.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.board {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.board th, .board td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}

.board thead th { color: var(--ink-2); font-size: .85rem; font-weight: 600; background: var(--surface-2); }

.board tbody th { font-weight: 600; }

.board .num { text-align: right; font-variant-numeric: tabular-nums; }

.board .sub { display: block; color: var(--ink-3); font-size: .85rem; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px 2px 4px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--surface-2);
  color: var(--ink);
  font-size: .88rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  max-width: 100%;
}

.chip-icon {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: .72rem;
  line-height: 1;
  color: #FFFFFF;
  background: var(--gray);
}

.chip-detail { font-weight: 400; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; }

.chip-ok { border-color: color-mix(in srgb, var(--good) 45%, var(--rule)); color: var(--good-ink); }
.chip-ok .chip-icon { background: var(--good); }

.chip-stale { border-color: color-mix(in srgb, var(--warn) 55%, var(--rule)); color: var(--warn-ink); }
.chip-stale .chip-icon { background: var(--warn); color: #161B21; }

.chip-dark { border-color: color-mix(in srgb, var(--crit) 45%, var(--rule)); color: var(--crit-ink); }
.chip-dark .chip-icon { background: var(--crit); }

.chip-never { color: var(--ink-2); }

@media (max-width: 520px) {
  .chip-detail { display: none; }
  .codes { grid-template-columns: 1fr; }
  .card { padding: 18px; }

  /* The status board as one card per restaurant: a phone reads it without scrolling sideways. */
  .board thead { display: none; }
  .board, .board tbody, .board tr, .board th, .board td { display: block; }
  .board tr { padding: 10px 0; border-bottom: 1px solid var(--rule); }
  .board tr:last-child { border-bottom: 0; }
  .board th, .board td { border: 0; padding: 3px 14px; }
  .board tbody th { font-size: 1.05rem; padding-bottom: 6px; }
  .board td[data-label] { display: grid; grid-template-columns: 7.5em minmax(0, 1fr); gap: 8px; align-items: baseline; }
  .board td[data-label]::before { content: attr(data-label); color: var(--ink-3); font-size: .85rem; }
  .board td[data-label] > * { justify-self: start; min-width: 0; }
  .board .num { text-align: left; }
}