/* =========================================================
   Matura z matmy — wygląd strony (MatWeb)
   Kartka w kratkę, długopis i karta odpowiedzi: odpowiedź zaznacza się krzyżykiem.
   ========================================================= */

/* ---------- Fonty (lokalnie) ---------- */
@font-face { font-family: 'Source Serif'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/source-serif-regular.woff2') format('woff2'); }
@font-face { font-family: 'Source Serif'; font-style: italic; font-weight: 400; font-display: swap; src: url('/fonts/source-serif-it.woff2') format('woff2'); }
@font-face { font-family: 'Source Serif'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/source-serif-semibold.woff2') format('woff2'); }
@font-face { font-family: 'Source Serif'; font-style: italic; font-weight: 600; font-display: swap; src: url('/fonts/source-serif-semiboldit.woff2') format('woff2'); }
@font-face { font-family: 'Source Serif Display'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/source-serif-display-semibold.woff2') format('woff2'); }
@font-face { font-family: 'Instrument Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/instrument-sans-latin-ext-400-normal.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Instrument Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/instrument-sans-latin-400-normal.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Instrument Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/instrument-sans-latin-ext-600-normal.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Instrument Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/instrument-sans-latin-600-normal.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

/* ---------- Tokeny ---------- */
:root {
  --paper: #F6F7F9;
  --sheet: #FFFFFF;
  --grid: #E7EDF5;
  --rule: #D3DCE8;
  --ink: #182131;
  --ink-2: #4A5468;
  --ink-3: #737D90;

  --pen: #2B47C9;
  --pen-2: #1D3399;
  --pen-wash: #ECF0FC;
  --ok: #1B7650;
  --ok-wash: #E3F2EA;
  --bad: #BF3428;
  --bad-wash: #FBEAE7;
  --marker: #FFF0A0;

  --cell: 24px;
  --gutter: clamp(16px, 4vw, 48px);
  --ease: cubic-bezier(.22, 1, .36, 1);

  --serif: 'Source Serif', 'STIX Two Text', Georgia, 'Times New Roman', 'STIX Two Math', 'Cambria Math', serif;
  --display: 'Source Serif Display', 'Source Serif', Georgia, serif;
  --sans: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.55;
  font-kerning: normal;
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
main { flex: 1 0 auto; }
a { color: var(--pen); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--pen-2); }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--pen); outline-offset: 3px; border-radius: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 10; padding: 10px 14px; background: var(--ink); color: #FFFFFF; font: 600 15px var(--sans); border-radius: 4px; }
.skip:focus { top: 12px; color: #FFFFFF; }

.shell { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Krzyżyk (wspólny dla kratek odpowiedzi i wyboru wzorców) ---------- */
.mark { position: absolute; inset: -5px; width: calc(100% + 10px); height: calc(100% + 10px); overflow: visible; pointer-events: none; }
.mark path { fill: none; stroke: var(--pen); stroke-width: 3.2; stroke-linecap: round; stroke-dasharray: 40; stroke-dashoffset: 40; }
.mark__b { transition-delay: 0s; }
@media (prefers-reduced-motion: no-preference) {
  .mark path { transition: stroke-dashoffset 200ms var(--ease); }
  .mark .mark__b { transition-delay: 110ms; }
}
.is-x .mark path { stroke-dashoffset: 0; }

/* ---------- Nagłówek ---------- */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: max(18px, env(safe-area-inset-top));
  padding-bottom: 18px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  color: var(--ink);
  text-decoration: none;
  font: 600 21px/1 var(--display);
  letter-spacing: -.01em;
}
.logo:hover { color: var(--ink); }
.logo__box { position: relative; display: inline-block; width: 22px; height: 22px; border: 1.5px solid var(--ink); border-radius: 2px; background: var(--sheet); }
.logo__box .mark { inset: -3px; width: calc(100% + 6px); height: calc(100% + 6px); }
.logo__box .mark path { stroke-dashoffset: 0; stroke-width: 3.6; }

.nav-wrap { margin-left: auto; }
.nav { display: flex; align-items: center; gap: 4px 22px; margin: 0; padding: 0; list-style: none; font: 400 16px/1.2 var(--sans); white-space: nowrap; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--pen); text-decoration-thickness: 2px; text-underline-offset: .35em; }
@media (max-width: 720px) {
  .top { padding-bottom: 4px; row-gap: 0; }
  .top .logo { flex: 1; }
  .nav-wrap { order: 3; width: calc(100% + 2 * var(--gutter)); margin: 0 calc(-1 * var(--gutter)); padding: 0 var(--gutter); overflow-x: auto; scrollbar-width: none; }
  .nav-wrap::-webkit-scrollbar { display: none; }
  .nav { gap: 0 20px; font-size: 15px; }
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  background: var(--sheet);
  color: var(--ink-2);
  cursor: pointer;
  text-decoration: none;
}
.icon-btn:hover { border-color: var(--ink-3); color: var(--ink); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn[aria-pressed="false"] .on { display: none; }
.icon-btn[aria-pressed="true"] .off { display: none; }

/* ---------- Stopka ---------- */
.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 28px;
  padding-bottom: max(28px, env(safe-area-inset-bottom));
  color: var(--ink-3);
  font: 400 14px/1.5 var(--sans);
}
.foot a { color: var(--ink-2); }
.foot p { margin: 0; max-width: 60ch; }

/* =========================================================
   Strona główna — zadanie zamknięte, odpowiedzi to wejścia
   ========================================================= */
.home {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(24px, 6vh, 72px);
  padding-bottom: clamp(32px, 8vh, 96px);
}
.home__no { margin: 0 0 14px; font: 400 16px/1.3 var(--sans); color: var(--ink-3); }
.home__no b { font-weight: 600; color: var(--ink-2); }
.home__q {
  margin: 0;
  max-width: 14ch;
  font: 600 clamp(46px, 8.4vw, 112px)/.98 var(--display);
  letter-spacing: -.025em;
  text-wrap: balance;
}
.answers-home {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  gap: clamp(18px, 3vh, 30px) clamp(40px, 8vw, 128px);
  margin: clamp(36px, 7vh, 72px) 0 0;
  padding: 0;
  list-style: none;
}
@media (max-width: 640px) { .answers-home { grid-template-columns: minmax(0, 1fr); } }
.opt {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  min-height: 56px;
  color: var(--ink);
  text-decoration: none;
}
.opt:hover, .opt:focus-visible { color: var(--ink); }
.opt:focus-visible { outline: none; }
.opt__box {
  position: relative;
  flex: none;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  background: var(--sheet);
  font: 600 19px/1 var(--sans);
  color: var(--ink);
  transition: color 160ms ease, border-color 160ms ease;
}
.opt__label { font: 400 clamp(28px, 3.6vw, 42px)/1.1 var(--serif); letter-spacing: -.01em; }
.opt:hover .opt__box, .opt:focus-visible .opt__box, .opt.is-x .opt__box { color: var(--ink-3); border-color: var(--pen); }
.opt:hover .mark path, .opt:focus-visible .mark path { stroke-dashoffset: 0; }
.opt:focus-visible .opt__label { text-decoration: underline; text-decoration-color: var(--pen); text-decoration-thickness: 2px; text-underline-offset: .2em; }
.home__cap {
  margin: clamp(36px, 7vh, 72px) 0 0;
  max-width: 44ch;
  font: 400 17px/1.5 var(--sans);
  color: var(--ink-2);
}
.home__cap kbd { font: inherit; }
.foot--home { justify-content: space-between; }

/* =========================================================
   Strona startowa platformy — hasło + 3 karty matur
   ========================================================= */
.land { padding-top: clamp(28px, 7vh, 88px); padding-bottom: clamp(40px, 8vh, 96px); }
.land__eyebrow { margin: 0 0 14px; font: 600 15px/1.3 var(--sans); letter-spacing: .02em; color: var(--pen); }
.land__h { margin: 0; max-width: 18ch; font: 600 clamp(40px, 6.6vw, 88px)/1 var(--display); letter-spacing: -.025em; text-wrap: balance; }
.land__lead { margin: 20px 0 0; max-width: 46ch; font: 400 18px/1.5 var(--sans); color: var(--ink-2); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 2vw, 24px); margin: clamp(32px, 6vh, 64px) 0 0; padding: 0; list-style: none; }
@media (max-width: 860px) { .cards { grid-template-columns: minmax(0, 1fr); } }
.card {
  position: relative; display: flex; flex-direction: column; gap: 10px; height: 100%; min-height: 230px;
  padding: 26px 24px 22px; border: 1px solid var(--rule); border-radius: 18px; background: var(--sheet);
  color: var(--ink); text-decoration: none; box-shadow: 0 1px 2px rgba(24, 33, 49, .04);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms var(--ease);
}
.card:hover, .card:focus-visible { color: var(--ink); border-color: var(--pen); box-shadow: 0 10px 28px rgba(43, 71, 201, .10); transform: translateY(-2px); }
.card:focus-visible { outline: 2px solid var(--pen); outline-offset: 3px; }
.card__name { font: 600 clamp(26px, 2.6vw, 32px)/1.1 var(--display); letter-spacing: -.01em; }
.card__pct { margin-top: auto; font: 600 clamp(44px, 5vw, 60px)/1 var(--sans); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.card__pct small { margin-left: 6px; font-size: 15px; font-weight: 400; letter-spacing: 0; color: var(--ink-3); }
.card__bar { display: block; height: 8px; border-radius: 99px; background: var(--pen-wash); overflow: hidden; }
.card__bar i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--pen); transition: width 500ms var(--ease); }
.card__meta { font: 400 15px/1.4 var(--sans); color: var(--ink-3); min-height: 1.4em; }
.card__go { font: 600 16px/1.2 var(--sans); color: var(--pen); }
.card--soon .card__pct { color: var(--ink-3); }
.card--soon .card__go { color: var(--ink-2); }
@media (max-width: 860px) { .card { min-height: 0; } .card__pct { margin-top: 8px; } }
@media (prefers-reduced-motion: reduce) { .card, .card__bar i { transition: none; } .card:hover { transform: none; } }

/* Sesje 10/20/30 i próbna matura */
.sizes { display: flex; flex-wrap: wrap; gap: 10px; }
.history { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font: 400 16px/1.4 var(--sans); color: var(--ink-2); }
.history b { color: var(--ink); }
.history .ok { color: var(--ok); } .history .bad { color: var(--bad); }
.home__prog { font-size: 18px; }
.answers-home--col { grid-template-columns: minmax(0, 1fr); gap: clamp(14px, 2.4vh, 22px); }
.home__q--wide { max-width: 16ch; }
.opt__meta { display: block; margin-top: 6px; font: 400 15px/1.35 var(--sans); letter-spacing: 0; color: var(--ink-3); }
.opt__meta:empty { display: none; }
.home__prog { margin: 18px 0 0; font: 500 16px/1.4 var(--sans); color: var(--ink-2); }
.home__prog:empty { display: none; }

/* =========================================================
   Strony spisu: działy, dział, pewniaki
   ========================================================= */
.page { padding-top: clamp(16px, 4vh, 40px); padding-bottom: 56px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 4px 10px; margin: 0 0 14px; padding: 0; list-style: none; font: 400 15px/1.4 var(--sans); color: var(--ink-3); }
.crumbs li + li::before { content: '/'; margin-right: 10px; color: var(--rule); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--pen); text-decoration: underline; }
.h1 {
  margin: 0;
  max-width: 20ch;
  font: 600 clamp(40px, 6.4vw, 76px)/1 var(--display);
  letter-spacing: -.022em;
  text-wrap: balance;
}
.lead { margin: 18px 0 0; max-width: 58ch; font-size: clamp(19px, 2vw, 21px); line-height: 1.55; color: var(--ink-2); }
.page__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.list { margin: 40px 0 0; padding: 0; list-style: none; border-top: 1.5px solid var(--ink); }
.item { border-bottom: 1px solid var(--rule); }
.item__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 260px);
  align-items: center;
  gap: 8px 32px;
  padding: 22px 4px;
  color: var(--ink);
  text-decoration: none;
}
.item__link:hover { color: var(--ink); background: rgba(236, 240, 252, .55); }
.item__link:hover .item__name { text-decoration: underline; text-decoration-color: var(--pen); text-decoration-thickness: 2px; text-underline-offset: .18em; }
.item__main { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.item__name { font: 400 clamp(23px, 2.6vw, 30px)/1.2 var(--serif); letter-spacing: -.005em; }
.item__desc { font: 400 16px/1.45 var(--sans); color: var(--ink-2); max-width: 62ch; }
.item__meta { font: 400 15px/1.4 var(--sans); color: var(--ink-3); }
.item__meta b { font-weight: 600; color: var(--ink-2); }
.item--off .item__link { cursor: default; }
.item--off .item__link:hover { background: none; }
.item--off .item__name { color: var(--ink-3); text-decoration: none !important; }
.item__nr { font: 400 15px/1 var(--sans); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.list--num .item__link { grid-template-columns: 36px minmax(0, 1fr) minmax(180px, 260px); }
.badge { display: inline-block; margin-left: 10px; padding: 2px 8px; border: 1px solid var(--ink-3); border-radius: 3px; font: 600 12px/1.4 var(--sans); color: var(--ink-2); vertical-align: .3em; letter-spacing: .01em; }
@media (max-width: 680px) {
  .item__link, .list--num .item__link { grid-template-columns: minmax(0, 1fr); padding: 18px 2px; }
  .list--num .item__link { grid-template-columns: 28px minmax(0, 1fr); }
  .list--num .prog { grid-column: 2; }
}

/* Pasek postępu: kreska długopisem */
.prog { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.prog__track { position: relative; height: 6px; border-radius: 3px; background: var(--grid); overflow: hidden; }
.prog__bar { position: absolute; inset: 0 auto 0 0; width: calc(var(--p, 0) * 100%); background: var(--pen); border-radius: 3px; transition: width 400ms var(--ease); }
.prog__txt { font: 400 14px/1.3 var(--sans); color: var(--ink-3); }
.is-started .prog__txt { color: var(--ink-2); }
.prog--off .prog__track { display: none; }

/* ---------- Przyciski ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border: 1.5px solid var(--pen);
  border-radius: 6px;
  background: var(--pen);
  color: #FFFFFF;
  font: 600 17px/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease, transform 100ms ease;
  user-select: none;
}
.btn:hover { background: var(--pen-2); border-color: var(--pen-2); color: #FFFFFF; }
.btn:active { transform: translateY(1px); }
.btn:disabled { background: var(--rule); border-color: var(--rule); color: var(--ink-3); cursor: not-allowed; }
.btn--big { min-height: 60px; padding: 0 30px; font-size: 18px; }
.btn--ghost { background: var(--sheet); color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--pen-wash); color: var(--ink); border-color: var(--ink); }
.btn--warn { background: var(--sheet); color: var(--bad); border-color: var(--bad); }
.btn--warn:hover { background: var(--bad-wash); color: var(--bad); border-color: var(--bad); }

/* ---------- Wybór zakresu (zestaw, powtórka) ---------- */
.scopes { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; border: 0; }
.scope {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 16px 0 12px;
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  background: var(--sheet);
  font: 400 16px/1.2 var(--sans);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.scope:hover { border-color: var(--ink-3); }
.scope__box { position: relative; flex: none; width: 22px; height: 22px; border: 1.5px solid var(--ink); border-radius: 3px; background: var(--sheet); }
.scope[aria-checked="true"] { border-color: var(--pen); box-shadow: inset 0 0 0 1px var(--pen); background: var(--pen-wash); color: var(--pen); }
.scope[aria-checked="true"] .mark path { stroke-dashoffset: 0; }
.scope-info { margin: 0; font: 400 16px/1.5 var(--sans); color: var(--ink-2); }

/* ---------- Tekst (prywatność, artykuły) ---------- */
.prose { max-width: 68ch; }
.prose h2 { margin: 36px 0 10px; font: 600 26px/1.2 var(--serif); }
.prose p, .prose li { color: var(--ink-2); }