/* Carbon-style tokens (DESIGN.md). Flat, square, one accent. */
:root {
  --canvas: #ffffff; --layer: #f4f4f4; --layer-2: #e0e0e0; --line: #e0e0e0; --line-strong: #161616;
  --ink: #161616; --muted: #525252; --subtle: #6f6f6f;
  --primary: #0f62fe; --primary-hover: #0050e6; --primary-press: #002d9c; --link: #0f62fe;
  --ok: #24a148; --warn: #f1c21b; --err: #da1e28;
  --inv: #161616; --inv-2: #262626; --inv-ink: #ffffff; --inv-muted: #c6c6c6;
  --team-a: #6929c4; --team-b: #1192e8; --team-c: #005d5d; --team-d: #9f1853;
  --font: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #161616; --layer: #262626; --layer-2: #393939; --line: #393939; --line-strong: #f4f4f4;
    --ink: #f4f4f4; --muted: #c6c6c6; --subtle: #a8a8a8; --link: #78a9ff; --inv: #000000; --inv-2: #161616;
    --team-a: #a56eff; --team-b: #33b1ff; --team-c: #08bdba; --team-d: #ff7eb6; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --canvas: #161616; --layer: #262626; --layer-2: #393939; --line: #393939; --line-strong: #f4f4f4;
  --ink: #f4f4f4; --muted: #c6c6c6; --subtle: #a8a8a8; --link: #78a9ff; --inv: #000000; --inv-2: #161616;
  --team-a: #a56eff; --team-b: #33b1ff; --team-c: #08bdba; --team-d: #ff7eb6; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 400 16px/1.5 var(--font); letter-spacing: .16px; }
a { color: var(--link); }
a:hover { color: var(--primary-hover); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
h1, h2, h3 { margin: 0 0 12px; }
h2 { font-size: 28px; font-weight: 400; line-height: 1.25; margin-top: 48px; }
h3 { font-size: 20px; font-weight: 400; line-height: 1.4; margin-top: 24px; }
.wrap { max-width: 1056px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--primary); color: #fff; padding: 8px 12px; z-index: 10; }
.num, .tnum { font-variant-numeric: tabular-nums; }

/* Header */
.top { background: var(--canvas); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 48px; }
.logo { display: flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 14px; }
.logo svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 0; overflow-x: auto; flex: 1; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; padding: 14px 12px; white-space: nowrap; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current] { color: var(--ink); border-bottom-color: var(--primary); }
.menu-btn { display: none; background: none; border: 0; color: var(--ink); font-size: 20px; min-width: 48px; min-height: 48px; cursor: pointer; }
@media (max-width: 672px) {
  .menu-btn { display: block; margin-left: auto; }
  .nav { display: none; position: absolute; top: 48px; left: 0; right: 0; flex-direction: column; background: var(--canvas); border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 16px; border-bottom: 1px solid var(--line); }
}

/* Hero */
.hero { padding: 32px 0 16px; }
.hero h1 { font-weight: 300; font-size: 42px; line-height: 1.2; letter-spacing: 0; }
.lede { font-size: 18px; color: var(--muted); max-width: 720px; margin: 0; }
.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: var(--muted); }
@media (max-width: 672px) { .hero h1 { font-size: 30px; } .lede { font-size: 16px; } }

/* Tool panel */
.tool { padding: 8px 0 24px; }
.panel { background: var(--layer); padding: 24px; }
@media (max-width: 672px) { .panel { padding: 16px; margin: 0 -16px; } }
.panel + .panel { margin-top: 16px; }
.row { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > span, .label { font-size: 12px; color: var(--muted); letter-spacing: .32px; }
input[type=text], input[type=number], input[type=date], input[type=time], select, textarea {
  font: inherit; color: var(--ink); background: var(--canvas); border: 0; border-bottom: 1px solid var(--subtle);
  border-radius: 0; padding: 11px 12px; min-height: 48px; width: 100%; font-variant-numeric: tabular-nums;
}
.panel input, .panel select { background: var(--canvas); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -2px; }
input.bad { outline: 2px solid var(--err); outline-offset: -2px; }
input::placeholder { color: var(--subtle); opacity: .55; font-size: 14px; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }

.btn { font: inherit; font-size: 14px; border: 0; border-radius: 0; min-height: 48px; padding: 12px 16px; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:active { background: var(--primary-press); }
.btn-secondary { background: var(--ink); color: var(--canvas); }
.btn-ghost { background: transparent; color: var(--link); }
.btn-ghost:hover { background: var(--layer-2); }
.btn-tertiary { background: transparent; color: var(--link); box-shadow: inset 0 0 0 1px var(--primary); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

/* Tabs (Carbon) */
.tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tabs button { font: inherit; font-size: 14px; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); padding: 14px 16px; min-height: 48px; cursor: pointer; white-space: nowrap; }
.tabs button[aria-selected="true"] { color: var(--ink); font-weight: 600; border-bottom-color: var(--primary); }

/* Results */
.result { background: var(--canvas); border-left: 4px solid var(--primary); padding: 16px 20px; margin-top: 16px; }
.result .big { font-size: 42px; font-weight: 300; line-height: 1.2; font-variant-numeric: tabular-nums; }
.result .cap { font-size: 12px; color: var(--muted); letter-spacing: .32px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 16px; }
.tile { background: var(--canvas); padding: 12px 16px; }
.tile b { display: block; font-size: 22px; font-weight: 400; font-variant-numeric: tabular-nums; }
.tile span { font-size: 12px; color: var(--muted); }
details.how { margin-top: 16px; background: var(--canvas); padding: 0 16px; }
details.how summary { cursor: pointer; padding: 12px 0; font-size: 14px; color: var(--link); }
details.how div { font-size: 14px; padding-bottom: 12px; }
.note { font-size: 12px; color: var(--muted); margin-top: 12px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table.data { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
table.data th, table.data td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); }
table.data thead th { background: var(--layer-2); font-weight: 600; font-size: 14px; }

/* Content */
.content { padding: 8px 0 24px; }
.prose { max-width: 760px; }
.prose p, .prose li { color: var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; font-size: 16px; }
.faq p { margin: 0 0 16px; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { background: var(--canvas); padding: 16px; text-decoration: none; color: var(--ink); min-height: 96px; }
.card:hover { background: var(--layer); }
.card b { display: block; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.card span { font-size: 14px; color: var(--muted); }
.hub-section { padding: 8px 0 32px; }

/* Footer */
.foot { background: var(--inv); color: var(--inv-muted); padding: 48px 0 32px; margin-top: 48px; font-size: 14px; }
.foot h3, .foot-h { color: var(--inv-ink); font-size: 14px; font-weight: 600; margin: 0 0 8px; }
.foot ul { list-style: none; margin: 0 0 24px; padding: 0; }
.foot li { padding: 3px 0; }
.foot a { color: var(--inv-muted); text-decoration: none; }
.foot a:hover { color: var(--inv-ink); text-decoration: underline; }
.foot-cols { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.fine { border-top: 1px solid var(--inv-2); padding-top: 16px; }
.fine p { margin: 4px 0; }

.print-only { display: none; }
@media print {
  @page { margin: 12mm; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .top, .foot, .content, .actions, .no-print, .crumbs, .lede, .tabs { display: none !important; }
  .print-only { display: block; }
  .hero { padding: 0 0 8px; } .hero h1 { font-size: 20pt; }
  .panel { background: #fff; padding: 0; }
  input, select { border: 0; border-bottom: 1px solid #000; background: #fff; min-height: 0; padding: 4px; }
  .result { border-left-color: #000; }
  table.data th, table.data td { border-bottom: 1px solid #000; padding: 6px 8px; }
  a { color: #000; text-decoration: none; }
}
fieldset.days { display: flex; flex-wrap: wrap; gap: 0 16px; }
fieldset.days legend { margin-bottom: 4px; }
fieldset.days label, label.check { display: inline-flex; align-items: center; gap: 8px; min-height: 48px; font-size: 14px; cursor: pointer; }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--primary); margin: 0; }
.hr-t td { padding: 4px 8px 4px 0; border: 0; } .hr-t th { padding: 0 8px 6px 0; background: none !important; font-weight: 400 !important; font-size: 12px !important; color: var(--muted); }
.hr-t input { min-height: 44px; }
.big-out { font-size: 34px; font-weight: 300; font-variant-numeric: tabular-nums; }
.swap { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 672px) { .swap { grid-template-columns: 1fr; } }
table.chart td, table.chart th { padding: 6px 12px; font-size: 14px; }
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }

/* Day / night switcher */
.theme-btn { background: none; border: 0; color: var(--ink); min-width: 48px; min-height: 48px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }
.theme-btn:hover { background: var(--layer); }
.theme-btn svg { width: 20px; height: 20px; }
.theme-btn .i-sun { display: none; }
:root[data-theme="dark"] .theme-btn .i-sun { display: block; }
:root[data-theme="dark"] .theme-btn .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .i-sun { display: block; }
  :root:not([data-theme="light"]) .theme-btn .i-moon { display: none; }
}
@media (max-width: 672px) { .menu-btn { margin-left: 0; } }
@media print { .theme-btn { display: none; } }

/* Reserve space for results rendered by script (CLS) */
[id$="-out"]:empty { min-height: 120px; }
.ro-cal:empty { min-height: 400px; }

table.pat td, table.pat th { text-align: center; padding: 6px 4px; font-size: 12px; min-width: 38px; }
table.pat .c-D { background: var(--team-b); color: #fff; } table.pat .c-N { background: var(--inv); color: #fff; } table.pat .c-W { background: var(--team-a); color: #fff; } table.pat .c-O { color: var(--muted); }
@media print { table.pat td { -webkit-print-color-adjust: exact; print-color-adjust: exact; } }

.sources { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 12px; margin-top: 32px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; align-self: flex-end; }
.chips button { font: inherit; font-size: 14px; background: var(--canvas); color: var(--ink); border: 1px solid var(--line); min-height: 40px; min-width: 48px; padding: 6px 10px; cursor: pointer; }
.chips button:hover { border-color: var(--primary); color: var(--link); }

textarea { font: inherit; color: var(--ink); background: var(--canvas); border: 0; border-bottom: 1px solid var(--subtle); border-radius: 0; padding: 11px 12px; width: 100%; font-variant-numeric: tabular-nums; }

.foot-h a { color: var(--inv-ink); text-decoration: none; }
.foot-h a:hover { text-decoration: underline; }
.foot .fmore a { color: var(--inv-ink); font-weight: 600; }
.finfo { margin: 0 0 16px; }

.logo .wm { font-size: 17px; font-weight: 300; letter-spacing: 0; color: var(--ink); }
.logo .wm b { font-weight: 600; }
.logo svg { width: 28px; height: 28px; }

/* cookie consent (GA4 loads only after Accept) */
.consent { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 60; max-width: 560px; margin: 0 auto; background: var(--canvas); color: var(--ink);
  border: 1px solid var(--line-strong); padding: 14px 16px; box-shadow: 0 8px 28px rgba(0,0,0,.18); font-size: 14px; }
.consent p { margin: 0 0 10px; }
.consent-btns { display: flex; gap: 8px; justify-content: flex-end; }
.consent .btn { min-height: 40px; padding: 8px 18px; }
@media print { .consent { display: none !important; } }

.tc-cell { display: flex; align-items: stretch; } .tc-cell input { flex: 1; min-width: 0; }
.tc-cell .now { background: var(--canvas); border: 0; border-bottom: 1px solid var(--subtle); color: var(--muted); width: 30px; cursor: pointer; font-size: 14px; padding: 0; }
.tc-cell .now:hover { color: var(--link); background: var(--layer-2); }
@media print { .tc-cell .now { display: none; } }

@media print { body.print-chart .tool .swap, body.print-chart #mt-now, body.print-chart .share-bar, body.print-chart .hero .lede { display: none !important; } }

/* Row tables (hours, rounding, work hours grid) become labelled 2-column cards on phones */
.hr-t td.hrs-cell { text-align: right; white-space: nowrap; }
@media (max-width: 672px) {
  .hr-t thead { display: none; }
  .hr-t, .hr-t tbody, .hr-t tfoot { display: block; width: 100%; }
  .hr-t tr { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .hr-t td { padding: 0 !important; border: 0 !important; min-width: 0; }
  .hr-t td[data-l]::before { content: attr(data-l); display: block; font-size: 12px; color: var(--muted); margin-bottom: 2px; }
  .hr-t td.full { grid-column: 1 / -1; }
  .hr-t td.m-hide { display: none; }
  .hr-t td.hrs-cell { text-align: left; align-self: end; font-weight: 600; }
  .hr-t tr { position: relative; }
  .hr-t td.del-cell { position: absolute; right: 0; top: 2px; }
  .hr-t td.del-cell .btn { min-height: 32px; padding: 4px 10px; }
  .hr-t input { width: 100%; min-width: 0; min-height: 48px; }
  .tc-cell { width: 100%; }
}