:root {
  --bg: #f6f7f5;
  --surface: #ffffff;
  --surface-2: #f0f2ef;
  --border: #e2e5e0;
  --text: #1c2420;
  --muted: #66716b;
  --accent: #0f766e;
  --accent-soft: #d8efec;
  --accent-text: #ffffff;
  --done: #0f766e;
  --done-soft: #e3f3f0;
  --warn: #b45309;
  --warn-soft: #fdf0dc;
  --bad: #b91c1c;
  --bad-soft: #fde7e7;
  --off: #eceee9;
  --today: #f59e0b;
  --shadow: 0 1px 2px rgba(20, 30, 25, 0.06), 0 4px 16px rgba(20, 30, 25, 0.05);
  --radius: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111614;
    --surface: #181e1b;
    --surface-2: #1f2723;
    --border: #2c3631;
    --text: #e6ece8;
    --muted: #93a19a;
    --accent: #2dd4bf;
    --accent-soft: #15322e;
    --accent-text: #06201c;
    --done: #2dd4bf;
    --done-soft: #143430;
    --warn: #fbbf24;
    --warn-soft: #3a2c10;
    --bad: #f87171;
    --bad-soft: #3b1a1a;
    --off: #151a18;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.muted { color: var(--muted); }
.spacer { flex: 1; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 20px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: -0.01em; }
.logo svg { width: 26px; height: 26px; display: block; }
.logo rect { fill: var(--accent); }
.logo path { stroke: var(--accent-text); stroke-width: 3.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.tabs { display: flex; gap: 2px; margin-left: 8px; }
.tabs a {
  padding: 7px 12px; border-radius: 8px;
  color: var(--muted); text-decoration: none; font-weight: 550;
}
.tabs a:hover { color: var(--text); background: var(--surface-2); }
.tabs a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
.staff-picker { margin-left: auto; }
.staff-picker select, select.input, input.input, textarea {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 10px;
}
select:focus, input:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 0; border-color: var(--accent); }

main { max-width: 1180px; margin: 0 auto; padding: 22px 20px 64px; }

/* ---------- shared ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 13px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-weight: 550;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { background: transparent; }
.btn.icon { padding: 6px 9px; }
.btn:disabled { opacity: 0.45; cursor: default; }

.page-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.page-head h1 { font-size: 22px; margin: 0; letter-spacing: -0.02em; }
.page-head .sub { color: var(--muted); }
.stepper { display: inline-flex; align-items: center; gap: 4px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.banner { padding: 10px 14px; border-radius: 10px; background: var(--warn-soft); color: var(--warn); margin-bottom: 16px; font-weight: 500; }

/* ---------- area colours (one per checklist block) ---------- */
.c0 { --c: #0f766e; --c-soft: #e8f5f2; }
.c1 { --c: #4f46e5; --c-soft: #eef0fd; }
.c2 { --c: #be185d; --c-soft: #fcedf4; }
.c3 { --c: #b45309; --c-soft: #fdf4e3; }
.c4 { --c: #0369a1; --c-soft: #e7f2fa; }
.c5 { --c: #7e22ce; --c-soft: #f5edfc; }
.c6 { --c: #15803d; --c-soft: #e9f6ed; }
.c7 { --c: #c2410c; --c-soft: #fdeee6; }
@media (prefers-color-scheme: dark) {
  .c0 { --c: #2dd4bf; --c-soft: #10282a; }
  .c1 { --c: #a5b4fc; --c-soft: #1b1e38; }
  .c2 { --c: #f9a8d4; --c-soft: #2e1724; }
  .c3 { --c: #fcd34d; --c-soft: #2c2412; }
  .c4 { --c: #7dd3fc; --c-soft: #112431; }
  .c5 { --c: #d8b4fe; --c-soft: #261a35; }
  .c6 { --c: #86efac; --c-soft: #13281b; }
  .c7 { --c: #fdba74; --c-soft: #2e1d10; }
}

/* ---------- today ---------- */
.progress { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.progress-bar { flex: 1; height: 8px; background: var(--surface-2); border-radius: 99px; overflow: hidden; }
.progress-bar span { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width 0.25s ease; }
.progress-label { font-variant-numeric: tabular-nums; font-weight: 600; min-width: 90px; text-align: right; }

.groups { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; align-items: start; }
.group { padding: 6px 0; }
.group h3 {
  margin: 0; padding: 10px 16px 6px;
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
  display: flex; justify-content: space-between;
}
.task { padding: 8px 16px; border-top: 1px solid var(--border); }
.task:first-of-type { border-top: 0; }
.task-main { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; }
.task-main input { margin: 0; }
.tick {
  appearance: none; flex: none;
  width: 22px; height: 22px; margin-top: 1px !important;
  border: 2px solid var(--border); border-radius: 7px; background: var(--surface);
  display: grid; place-items: center; cursor: pointer; transition: all 0.12s ease;
}
.tick:checked { background: var(--done); border-color: var(--done); }
.tick:checked::after {
  content: ""; width: 11px; height: 6px; margin-top: -3px;
  border-left: 2.5px solid var(--accent-text); border-bottom: 2.5px solid var(--accent-text);
  transform: rotate(-45deg);
}
.tick:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.task-title { flex: 1; }
.task.is-done .task-title { color: var(--muted); }
.task-hint { display: block; font-size: 12.5px; color: var(--muted); }
.note-toggle { flex: none; border: 0; background: none; color: var(--muted); cursor: pointer; padding: 0 2px; font-size: 13px; }
.note-toggle:hover { color: var(--accent); }
.task-note { margin: 8px 0 2px 34px; }
.task-note input { width: 100%; }

/* Coloured blocks */
.group.tinted {
  background: var(--c-soft);
  border-color: color-mix(in srgb, var(--c) 28%, var(--border));
  border-top: 4px solid var(--c);
}
.group.tinted h3 { color: var(--c); }
.group.tinted .group-count {
  background: color-mix(in srgb, var(--c) 16%, transparent);
  padding: 0 8px; border-radius: 99px;
}
.group.tinted .task { border-top-color: color-mix(in srgb, var(--c) 18%, transparent); }
.group.tinted .tick { border-color: color-mix(in srgb, var(--c) 45%, var(--border)); }
.group.tinted .tick:checked { background: var(--c); border-color: var(--c); }
.group.tinted .tick:focus-visible { outline-color: var(--c); }
.group.tinted .note-toggle:hover { color: var(--c); }
.group.tinted .task-note input { border-color: color-mix(in srgb, var(--c) 25%, var(--border)); }
.group.tinted .task-note input:focus { border-color: var(--c); outline-color: color-mix(in srgb, var(--c) 40%, transparent); }

/* ---------- month grid ---------- */
.legend { display: flex; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: 13px; margin: -6px 0 14px; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 5px; }
.grid-wrap { overflow: auto; max-height: calc(100vh - 200px); }
table.grid { border-collapse: separate; border-spacing: 0; font-size: 13px; }
.grid th, .grid td { border-bottom: 1px solid var(--border); padding: 0; }
.grid thead th {
  position: sticky; top: 0; z-index: 3; background: var(--surface);
  font-weight: 600; color: var(--muted); padding: 6px 0;
}
.grid thead th.day { width: 30px; min-width: 30px; text-align: center; }
.day-btn {
  display: block; width: 100%; padding: 0; border: 0; background: none; cursor: pointer;
  color: inherit; font: inherit; line-height: 1.15;
}
.day-btn:hover { color: var(--accent); }
.day-btn:focus-visible, .cell-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 6px; }
.grid thead th.day small { display: block; font-weight: 500; font-size: 10.5px; }
.grid thead th.day.off { color: color-mix(in srgb, var(--muted) 60%, transparent); }
.grid thead th.day.is-today { color: var(--today); }
.grid .sticky-col {
  position: sticky; left: 0; z-index: 2; background: var(--surface);
  text-align: left; padding: 6px 12px; min-width: 260px; max-width: 260px;
  border-right: 1px solid var(--border);
}
.grid thead .sticky-col { z-index: 4; }
.grid .area-row th {
  background: var(--surface-2); text-align: left; padding: 5px 12px;
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
}
.grid .area-row th.sticky-col { background: var(--surface-2); }
.grid .area-row.tinted th { background: var(--c-soft); color: var(--c); }
.grid .area-row.tinted th.sticky-col { box-shadow: inset 4px 0 0 var(--c); }
.grid tr.tinted .cell-btn .mark { background: var(--c); }
.grid tr.tinted .cell-btn:hover { background: color-mix(in srgb, var(--c) 15%, transparent); }
.grid td.cell { text-align: center; border-left: 1px solid color-mix(in srgb, var(--border) 50%, transparent); }
.grid td.cell.off { background: var(--off); }
.grid td.cell.is-today { box-shadow: inset 2px 0 0 var(--today), inset -2px 0 0 var(--today); }
.cell-btn {
  width: 30px; height: 30px; border: 0; background: transparent; cursor: pointer;
  display: grid; place-items: center; position: relative; border-radius: 6px;
}
.cell-btn:hover { background: var(--accent-soft); }
.cell-btn .mark {
  width: 18px; height: 18px; border-radius: 5px; background: var(--done);
  display: grid; place-items: center;
}
.cell-btn .mark::after {
  content: ""; width: 8px; height: 4px; margin-top: -2px;
  border-left: 2px solid var(--accent-text); border-bottom: 2px solid var(--accent-text); transform: rotate(-45deg);
}
.cell-btn .dot { position: absolute; top: 3px; right: 3px; width: 6px; height: 6px; border-radius: 50%; background: var(--today); }
.cell-btn .note-only { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--today); }
.grid td.total, .grid th.total { text-align: center; font-variant-numeric: tabular-nums; padding: 0 10px; color: var(--muted); font-weight: 600; }
.grid tfoot td, .grid tfoot th { position: sticky; bottom: 0; background: var(--surface); font-size: 11.5px; color: var(--muted); text-align: center; padding: 6px 0; border-top: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.grid tfoot th.sticky-col { z-index: 4; text-align: left; padding-left: 12px; }

/* ---------- report ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.kpi { padding: 14px 16px; }
.kpi .label { color: var(--muted); font-size: 13px; }
.kpi .value { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.kpi .value small { font-size: 14px; color: var(--muted); font-weight: 500; }
.table-wrap { overflow-x: auto; }
table.report { width: 100%; border-collapse: collapse; }
.report th, .report td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.report thead th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.report tr:last-child td { border-bottom: 0; }
.report .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.report .area { color: var(--muted); font-size: 13px; }
.rate { display: flex; align-items: center; gap: 10px; min-width: 160px; }
.rate-bar { flex: 1; height: 7px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.rate-bar span { display: block; height: 100%; border-radius: 99px; }
.rate-pct { width: 42px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.lvl-good { background: var(--done); }
.lvl-mid { background: var(--warn); }
.lvl-low { background: var(--bad); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; font-weight: 600; }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.section-title { font-size: 15px; margin: 26px 0 10px; }

/* ---------- settings ---------- */
.settings-grid { display: grid; gap: 20px; }
.settings-card { padding: 16px; }
.settings-card h2 { font-size: 16px; margin: 0 0 4px; }
.settings-card > p { margin: 0 0 14px; }
.task-edit { display: grid; grid-template-columns: 34px 150px 1fr 110px 120px 1fr auto; gap: 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--border); }
.task-edit.archived { opacity: 0.55; }
.task-edit .order { display: flex; flex-direction: column; gap: 2px; }
.task-edit .order button { padding: 0 6px; line-height: 1.1; font-size: 11px; }
.task-edit input, .task-edit select { width: 100%; }
.add-row { display: grid; grid-template-columns: 150px 1fr 110px 120px 1fr auto; gap: 8px; margin-top: 14px; }
.staff-row { display: flex; gap: 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--border); }
.staff-row input { flex: 1; }

/* ---------- sign-in ---------- */
body.signed-out .tabs, body.signed-out .staff-picker, body.signed-out #signOut { display: none; }
.auth { min-height: calc(100vh - 60px); display: grid; place-items: center; padding: 24px 16px; }
.auth-card { width: min(380px, 100%); padding: 28px 24px; }
.auth-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.auth-brand h1 { margin: 0; font-size: 22px; letter-spacing: -0.02em; }
.auth-brand .logo svg { width: 32px; height: 32px; }
#authForm { display: grid; gap: 14px; }
#authForm .field input { width: 100%; font-size: 15px; color: var(--text); }
.auth-error { margin: 0; padding: 8px 12px; border-radius: 8px; background: var(--bad-soft); color: var(--bad); font-size: 14px; }
.auth-submit { padding: 10px; font-size: 15px; }
.not-allowed { display: grid; gap: 10px; }
.not-allowed p { margin: 0; }
.small { font-size: 13px; margin: 0; }

/* ---------- admin ---------- */
body:not(.is-admin) .tabs a[data-view="settings"] { display: none; }
.access-row { display: grid; grid-template-columns: 1fr 140px auto; gap: 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--border); }
.access-email { overflow-wrap: anywhere; }
@media (max-width: 760px) { .access-row { grid-template-columns: 1fr auto; } .access-row .access-email { grid-column: 1 / -1; } }

/* ---------- dialog & toast ---------- */
dialog {
  border: 1px solid var(--border); border-radius: 14px; padding: 20px; width: min(420px, calc(100vw - 32px));
  background: var(--surface); color: var(--text); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}
dialog::backdrop { background: rgba(10, 15, 12, 0.35); }
dialog h2 { margin: 0; font-size: 17px; }
dialog p { margin: 2px 0 14px; }
.check-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-weight: 550; }
.field { display: grid; gap: 5px; font-size: 13px; color: var(--muted); }
.field textarea { width: 100%; resize: vertical; color: var(--text); font-size: 15px; }
.dialog-actions { display: flex; gap: 8px; margin-top: 16px; }

#toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 8px 14px; border-radius: 99px;
  font-size: 13px; font-weight: 550; box-shadow: var(--shadow); z-index: 50;
}
#toast.error { background: var(--bad); color: #fff; }

.empty { padding: 40px; text-align: center; color: var(--muted); }

/* ---------- mobile ---------- */
@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; padding: 10px 16px; gap: 8px; }
  .tabs { order: 3; width: 100%; margin: 0; overflow-x: auto; }
  .tabs a { flex: 1; text-align: center; padding: 7px 4px; }
  /* Brand, staff picker and sign-out share the first row; tabs get the second. */
  .staff-picker { flex: 1; min-width: 0; }
  .staff-picker select { width: 100%; text-overflow: ellipsis; }
  #signOut { padding: 6px 10px; }
  main { padding: 16px 16px 48px; }
  .groups { grid-template-columns: 1fr; }
  .grid .sticky-col { min-width: 170px; max-width: 170px; }
  .task-edit { grid-template-columns: 30px 1fr; padding: 12px 0; }
  .task-edit .order { grid-row: 1 / span 6; align-self: start; }
  .task-edit > :not(.order) { grid-column: 2; }
  .task-edit [data-act="archive"] { justify-self: start; }
  .add-row, #addStaff { grid-template-columns: 1fr !important; }
  .staff-row { flex-wrap: wrap; }
  .rate { min-width: 110px; }
  .report .area, .report .hide-sm { display: none; }
}