/* Jeden system wizualny dla obu domen; akcent zależy od html[data-site].
   Kontrast: --ctl (ramki pól i przycisków) >= 3:1 względem --bg i --surface w obu motywach (sprawdza tests/dist.test.js).
   Cele dotyku w narzędziu >= 44 px, linki nawigacji >= 24 px. Czcionki systemowe (zero zapytań zewnętrznych). */
:root {
  --bg: #f5f7f8; --surface: #ffffff; --ink: #15212b; --muted: #4f5b67; --line: #d9dfe5; --ctl: #6f7985;
  --accent: #0d5a48; --accent-ink: #ffffff; --accent-soft: #e1efea;
  --holiday: #a52a21; --holiday-soft: #fbe8e5; --weekend: #5b6774; --danger: #b42f25; --danger-soft: #fbe8e5; --ok: #1d6b45; --ad: #eceff2;
  --f-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-num: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
html[data-site="en"] { --accent: #3b4bd8; --accent-soft: #e8eafc; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1418; --surface: #161d23; --ink: #e7ecf0; --muted: #a3adb8; --line: #2b343d; --ctl: #7a8694;
    --accent: #5cc7a8; --accent-ink: #0b1a15; --accent-soft: #163029;
    --holiday: #ff8a7e; --holiday-soft: #3a1f1c; --weekend: #a3adb8; --danger: #ff8a7e; --danger-soft: #3a1f1c; --ok: #5cc79a; --ad: #1c242b;
    color-scheme: dark;
  }
  html[data-site="en"]:not([data-theme="light"]) { --accent: #8f9bff; --accent-ink: #0d1030; --accent-soft: #1d2147; }
}
:root[data-theme="dark"] {
  --bg: #0f1418; --surface: #161d23; --ink: #e7ecf0; --muted: #a3adb8; --line: #2b343d; --ctl: #7a8694;
  --accent: #5cc7a8; --accent-ink: #0b1a15; --accent-soft: #163029;
  --holiday: #ff8a7e; --holiday-soft: #3a1f1c; --weekend: #a3adb8; --danger: #ff8a7e; --danger-soft: #3a1f1c; --ok: #5cc79a; --ad: #1c242b;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--f-body); overflow-wrap: break-word; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
main:focus, .tool:focus { outline: none; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: max(16px, env(safe-area-inset-left, 0px)); }
.skip { position: absolute; left: 8px; top: -100px; z-index: 10; background: var(--surface); color: var(--ink); padding: 10px 14px; border: 2px solid var(--accent); border-radius: 6px; }
.skip:focus { top: 8px; }

/* Nagłówek: huby; < 640 px kategorie w jednym przewijanym rzędzie, wyszukiwarka pod ikoną */
.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 16px; padding-block: 6px; }
.brand { display: flex; align-items: center; gap: 8px; min-height: 44px; font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand i { width: 18px; height: 18px; border-radius: 4px; background: var(--accent); }
.nav { margin-left: auto; min-width: 0; }
.nav ul { display: flex; gap: 2px; list-style: none; margin: 0; padding: 0; }
.nav a { display: flex; align-items: center; min-height: 40px; padding: 0 10px; border-radius: 6px; color: var(--muted); text-decoration: none; font-size: 15px; white-space: nowrap; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current] { color: var(--ink); background: var(--accent-soft); font-weight: 600; }
.search input { min-height: 40px; width: 210px; border: 1px solid var(--ctl); border-radius: 6px; padding: 0 10px; background: var(--bg); color: var(--ink); font: 15px var(--f-body); }
.icon-btn { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid var(--ctl); border-radius: 8px; background: transparent; color: var(--ink); cursor: pointer; }
html[data-site="en"] .search { order: 2; }
html[data-site="en"] .nav { order: 1; }
@media (max-width: 639.98px) {
  .top-in { gap: 0 8px; }
  .icon-btn { display: inline-flex; margin-left: auto; }
  .nav, html[data-site="en"] .nav { order: 3; flex: 1 1 100%; margin: 0; overflow-x: auto; scrollbar-width: none; }
  .nav ul { flex-wrap: nowrap; }
  .nav a { min-height: 36px; padding: 0 10px; }
  .search, html[data-site="en"] .search { display: none; order: 4; flex: 1 1 100%; padding-bottom: 8px; }
  html[data-site] .search[data-open] { display: flex; }
  .search input { width: 100%; }
}

/* Układ: treść + szyna reklamowa 300 px na szerokich ekranach */
.layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; padding-block: 12px 48px; }
.layout.has-rail { grid-template-columns: minmax(0, 760px) 300px; justify-content: space-between; }
@media (max-width: 1079.98px) { .layout.has-rail { grid-template-columns: minmax(0, 1fr); } .rail { display: none; } }
main { min-width: 0; display: flex; flex-direction: column; gap: 32px; }
.crumbs ol { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; font-size: 14px; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin: 0 6px; }
.crumbs a { display: inline-block; min-height: 24px; color: var(--muted); }
@media (max-width: 639.98px) { .crumbs li[aria-current] { display: none; } }
h1 { font-size: clamp(25px, 4vw, 36px); line-height: 1.15; margin: 2px 0 6px; letter-spacing: -.015em; text-wrap: balance; }
h2 { font-size: 21px; line-height: 1.25; margin: 0 0 12px; text-wrap: balance; }
h2 a { color: inherit; }
h3, .h3 { font-size: 17px; line-height: 1.3; margin: 0 0 8px; }
.lead { margin: 0; color: var(--muted); }
.muted, .note { color: var(--muted); }
.note { font-size: 14px; margin: 0; }
.byline { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; margin: 0; }
.prose { max-width: 70ch; }
.prose p { margin: 0 0 12px; }
.formula { font: 14px/1.5 var(--f-num); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 12px 14px; overflow-x: auto; }
.callout { margin: 0; padding: 12px 16px; border-left: 4px solid var(--accent); background: var(--accent-soft); border-radius: 0 8px 8px 0; }
code { font: 14px var(--f-num); background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; }
.tbl code { white-space: nowrap; } /* wyrażenia cron w tabelach nie łamią się w połowie */

/* Narzędzie */
.tool { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; min-width: 0; }
.calc { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
.lbl { display: grid; gap: 4px; font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.opts { display: flex; gap: 12px; align-items: end; justify-content: space-between; }
.opts select { width: auto; min-width: 84px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 479.98px) { .tool { padding: 12px; } }
input, select, textarea { font: 500 16px var(--f-body); color: var(--ink); background: var(--bg); border: 1px solid var(--ctl); border-radius: 6px; min-height: 44px; padding: 8px 10px; width: 100%; min-width: 0; }
select { padding-block: 0; }
input[aria-invalid], textarea[aria-invalid] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; position: relative; }
.chips input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.chips label, .chip { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; padding: 0 14px; border: 1px solid var(--ctl); border-radius: 999px; background: var(--bg); color: var(--ink); font: 500 15px var(--f-body); text-decoration: none; text-transform: none; letter-spacing: 0; cursor: pointer; }
.chips input:checked + label { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chips input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }
.chip[aria-expanded="true"] { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.chips-nav { display: flex; flex-wrap: wrap; gap: 6px; }
.chips-nav .chip { padding: 0 12px; }
@media (max-width: 479.98px) { .chips label, .chip { padding: 0 11px; font-size: 14px; } }
.err { color: var(--danger); font-size: 14px; margin: 0; }
.result { display: grid; grid-template-columns: auto 1fr; gap: 12px 24px; align-items: center; border-top: 1px solid var(--line); padding-top: 14px; }
@media (max-width: 559.98px) { .result { grid-template-columns: 1fr; } }
.big { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.big output { font: 600 48px/1 var(--f-num); color: var(--accent); font-variant-numeric: tabular-nums; }
.big span { font-size: 15px; color: var(--muted); font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; margin: 0; }
.stats dt { font-size: 13px; color: var(--muted); line-height: 1.3; }
.stats dd { margin: 0; font: 600 17px var(--f-num); font-variant-numeric: tabular-nums; }
.sumline { margin: 0; font-size: 15px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; }
.btn { min-height: 44px; padding: 0 16px; border: 1px solid var(--accent); border-radius: 6px; background: var(--accent); color: var(--accent-ink); font: 600 15px var(--f-body); cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ctl); }
details.fold { border-top: 1px solid var(--line); padding-top: 10px; }
details.fold > summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; }
.kicker { margin: 0; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.big-date { margin: 0; font-size: 28px; font-weight: 700; color: var(--accent); }
.dates { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.dates li { display: flex; flex-wrap: wrap; gap: 2px 12px; align-items: baseline; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; }
.dates li span { color: var(--muted); font-size: 14px; }
.dates li small { flex-basis: 100%; color: var(--muted); font-size: 13px; }
.chips-label { align-self: center; color: var(--muted); font-size: 14px; margin-right: 4px; }
.result:first-child { border-top: 0; padding-top: 0; } /* kreska oddziela wynik od formularza — bez formularza jej nie ma */
.dates li.past { opacity: .6; }

/* Tabele, kalendarz, legenda */
.tbl { overflow-x: auto; }
table.yr { border-collapse: collapse; width: 100%; font-size: 15px; }
.yr th, .yr td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.yr thead th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.yr th[scope="row"] { font-weight: 500; }
.yr .n { text-align: right; font-family: var(--f-num); font-variant-numeric: tabular-nums; white-space: nowrap; }
.yr td:last-child:not(.n) { font-size: 14px; color: var(--muted); }
.yr tr.sum th, .yr tr.sum td { font-weight: 700; border-bottom: 0; }
.months { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 16px; }
.month { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px; scroll-margin-top: 12px; }
.month p { margin: 8px 0 0; font-size: 14px; }
table.cal { border-collapse: separate; border-spacing: 3px; width: 100%; table-layout: fixed; font: 500 14px var(--f-num); font-variant-numeric: tabular-nums; }
.cal th { font: 600 12px var(--f-body); color: var(--muted); }
.cal td { text-align: center; padding: 5px 0; border-radius: 4px; }
.cal td.w, .sw.w { background: var(--accent-soft); }
.cal td.we { color: var(--weekend); }
.cal td.h, .sw.h { background: var(--holiday-soft); color: var(--holiday); font-weight: 700; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 12px; font-size: 14px; color: var(--muted); }
.sw { display: inline-block; width: 14px; height: 14px; border-radius: 3px; vertical-align: -2px; margin-right: 6px; border: 1px solid var(--ctl); }
.hol-list { margin: 8px 0 0; padding-left: 18px; font-size: 15px; }
.hol-list em { color: var(--muted); font-style: normal; }

/* Karty: listy narzędzi, powiązane */
.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 8px; }
.cards a { display: block; height: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); text-decoration: none; font-weight: 600; }
.cards a span { display: block; font-weight: 400; font-size: 14px; color: var(--muted); }
.cards a:hover { border-color: var(--accent); }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { font-weight: 600; cursor: pointer; min-height: 44px; display: flex; align-items: center; }
.faq details p { margin: 0 0 10px; color: var(--muted); }

/* EN: panele wejście/wyjście, zakładki < 640 px, menu "⋯" */
.bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bar .grow { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--ctl); border-radius: 8px; overflow: hidden; }
.seg button { min-height: 42px; min-width: 44px; padding: 0 12px; border: 0; background: transparent; color: var(--ink); font: 500 15px var(--f-body); cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
details.menu { position: relative; }
details.menu > summary { list-style: none; display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; border: 1px solid var(--ctl); border-radius: 6px; cursor: pointer; font-size: 20px; line-height: 1; }
details.menu > summary::-webkit-details-marker { display: none; }
.menu-pop { position: absolute; right: 0; top: calc(100% + 4px); z-index: 5; display: grid; min-width: 160px; padding: 4px; background: var(--surface); border: 1px solid var(--ctl); border-radius: 8px; box-shadow: 0 6px 24px rgb(0 0 0 / .15); }
.menu-pop button { min-height: 44px; text-align: left; padding: 0 12px; border: 0; border-radius: 6px; background: transparent; color: var(--ink); font: 15px var(--f-body); cursor: pointer; }
.menu-pop button:hover { background: var(--accent-soft); }
.tabs { display: none; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; min-height: 44px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: var(--muted); font: 600 15px var(--f-body); cursor: pointer; }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.panes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pane { display: grid; gap: 4px; min-width: 0; align-content: start; }
@media (max-width: 639.98px) {
  .tabs { display: flex; }
  .panes { grid-template-columns: 1fr; }
  [data-tabs][data-active="input"] .pane-out, [data-tabs][data-active="output"] .pane-in { display: none; }
  .pane > .lbl { display: none; }
}
.editor { position: relative; border-radius: 6px; background: var(--bg); }
.editor textarea, .editor .backdrop, pre.out { font: 14px/1.5 var(--f-num); padding: 10px; margin: 0; border: 1px solid var(--ctl); border-radius: 6px; tab-size: 2; }
.editor textarea { position: relative; display: block; height: 300px; resize: vertical; background: transparent; white-space: pre-wrap; overflow-wrap: anywhere; }
.editor .backdrop { position: absolute; inset: 0; overflow: hidden; color: transparent; white-space: pre-wrap; overflow-wrap: anywhere; border-color: transparent; pointer-events: none; }
.backdrop mark { color: transparent; background: var(--danger-soft); border-bottom: 2px solid var(--danger); }
pre.out { height: 300px; overflow: auto; background: var(--bg); color: var(--ink); white-space: pre; }
@media (max-width: 639.98px) { .editor textarea, pre.out { height: 240px; } }
.status { margin: 0; font-size: 15px; min-height: 24px; }
.status.ok { color: var(--ok); }
.status.bad { color: var(--danger); }
.runs { margin: 0; padding-left: 20px; font: 15px/1.7 var(--f-num); }
.fields { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.fields .lbl { font-size: 11px; }
@media (max-width: 479.98px) { .fields input { padding-inline: 4px; text-align: center; } }

/* Reklamy: stała wysokość, overflow hidden, contain — wypełnienie nie przesuwa treści. Odstęp od narzędzia: gap 32 px w main. */
.ad { display: grid; gap: 4px; justify-items: center; contain: layout paint; }
.ad-label { justify-self: start; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.ad-box { width: 100%; overflow: hidden; contain: strict; display: grid; place-items: center; background: var(--ad); border: 1px dashed var(--line); border-radius: 8px; color: var(--muted); font-size: 12px; }
.s336x280 { max-width: 336px; height: 280px; }
.s300x600 { max-width: 300px; height: 600px; }
@media (max-width: 399.98px) { .s336x280 { max-width: 300px; height: 250px; } }
.rail .ad { position: sticky; top: 16px; margin-top: 120px; }

/* Stopka: lista wszystkich narzędzi */
.foot { border-top: 1px solid var(--line); background: var(--surface); font-size: 15px; color: var(--muted); }
.foot .wrap { padding-block: 24px; }
.foot-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 20px; }
.foot h2 { font-size: 14px; margin: 0 0 6px; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li a, .foot-meta a { display: inline-block; min-height: 24px; padding: 3px 0; color: var(--muted); }
.foot-meta { margin: 20px 0 0; font-size: 14px; }
.result.stack { display: block; }
.desc { margin: 0 0 8px; font-size: 19px; font-weight: 600; }
.mono, .fields input { font-family: var(--f-num); }
.hint { display: none; }
@media (hover: hover) and (pointer: fine) { .hint { display: block; } }
.tool-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.tool-list li { padding: 14px 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.tool-list h3 { margin: 0 0 4px; }
.tool-list p { margin: 0; color: var(--muted); }
.runs-head { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.runs-head .kicker { flex: 1 1 200px; }

/* R2: status w jednej linii nad polami; pole max 35vh na telefonie; przełączniki 44 px */
.status { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seg button { min-height: 44px; }
.nav a, .crumbs a, .foot li a { min-height: 24px; }
@media (max-width: 639.98px) {
  .editor textarea, pre.out { height: 35vh; min-height: 160px; }
  .yr .opt { display: none; }          /* tabela "Po miesiącach": tylko Miesiąc / Dni / Godziny */
  .months-nav { display: none; }       /* chipy miesięcy na /RRRR/ — na telefonie wystarcza tabela z linkami */
  .bar { flex-wrap: nowrap; gap: 6px; } /* jeden rząd akcji również przy 360 px */
  .bar .seg button { padding: 0 10px; font-size: 14px; }
  .bar .btn { padding: 0 12px; font-size: 14px; white-space: nowrap; }
  .bar details.menu { flex: none; }
}

/* Tabele porównań (niedziele handlowe): pierwsza kolumna do lewej; na telefonie karty — wiersz = karta, komórki z etykietą */
.cmp th[scope="row"] { text-align: left; min-width: 12em; }
.cmp .n { white-space: normal; } /* długie listy dat (grudzień) łamią się zamiast poszerzać tabelę */
.cmp .sub { display: block; font-size: 13px; color: var(--muted); font-weight: 400; }
@media (max-width: 639.98px) {
  .cmp thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .cmp, .cmp tbody, .cmp tr, .cmp th, .cmp td { display: block; width: auto; }
  .cmp tr { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px; background: var(--surface); }
  .cmp th[scope="row"], .cmp td { border: 0; padding: 2px 0; }
  .cmp td { display: flex; justify-content: space-between; gap: 12px; text-align: right; white-space: normal; }
  .cmp td::before { content: attr(data-label); color: var(--muted); text-align: left; font-family: var(--f-body); }
}

/* Przycisk wyglądający jak link (stopka: "Ustawienia prywatności") */
.linklike { background: none; border: 0; padding: 3px 0; min-height: 24px; font: inherit; color: var(--muted); text-decoration: underline; cursor: pointer; }