/* INF.03 Explorer: warstwa wizualna "arkusz egzaminacyjny".
   Ładowana jako ostatnia – przesłania kolory, czcionki i kształty z pozostałych arkuszy.
   Idea: papier + granat szkoły (MTI) + jeden akcent w kolorze zakreślacza, którym zaznacza się odpowiedź. */

/* ---------------------------------------------------------------- czcionki (własne pliki, bez zewnętrznych serwerów) */
@font-face{font-family:"Bricolage";font-weight:200 800;font-style:normal;font-display:swap;src:url(/assets/fonts/bricolage-latin-ext.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:"Bricolage";font-weight:200 800;font-style:normal;font-display:swap;src:url(/assets/fonts/bricolage-latin.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:"Atkinson";font-weight:200 800;font-style:normal;font-display:swap;src:url(/assets/fonts/atkinson-latin-ext.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:"Atkinson";font-weight:200 800;font-style:normal;font-display:swap;src:url(/assets/fonts/atkinson-latin.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:"PlexMono";font-weight:400;font-style:normal;font-display:swap;src:url(/assets/fonts/plexmono-latin-ext.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:"PlexMono";font-weight:400;font-style:normal;font-display:swap;src:url(/assets/fonts/plexmono-latin.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{
  --navy:#222E63; --navy2:#2C3A78; --brand:#34499A;
  --bg:#F3F5FA; --line:#D9DFEB;
  --mark:#F2C94C; --mark-soft:#FCF1C4; --mark-ink:#3B2F00;
  --font-display:"Bricolage","Segoe UI",system-ui,sans-serif;
  --font-body:"Atkinson","Segoe UI",system-ui,sans-serif;
  --font-mono:"PlexMono",ui-monospace,Consolas,monospace;
  --r-card:12px; --r-ctl:8px;
}
body{font-family:var(--font-body);font-size:17px;line-height:1.55}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em}
h1{letter-spacing:-.035em;line-height:1.02}
code,pre,kbd,samp,.drill-code,.drill-gap,.drill-edit{font-family:var(--font-mono)}
.timer{font-family:var(--font-mono);letter-spacing:0}

/* ---------------------------------------------------------------- bez wersalików rozstrzelonych (etykiety czytelne zwykłym tekstem) */
.top .eyebrow,.lesson-eyebrow,.ach-eyebrow,.cta-kicker,.metric-label,.lp-head small,.lp-why small,.results-head small,
.exercise-label,.drill-label,.part-label,.code-panel-head,.callout-head,.toc-part-head,.stats span,
.table th,.history th,table.ref-table th,.ach-group>summary{
  font-family:var(--font-body);text-transform:none;letter-spacing:0}
.top .eyebrow{font-size:15px;font-weight:600;color:#C9D2EE}
.stats span,.metric-label{font-size:13px;font-weight:600}
.top .eyebrow span{display:none}

/* ---------------------------------------------------------------- powierzchnie: płasko, obramowanie zamiast miękkich cieni */
.card,.panel,.question-card,.exam-side,.filters,.mode-card,.kpi,.tile,.empty,.setup-error,.stats,.callout,.code-panel{
  border-radius:var(--r-card);box-shadow:none}
.card,.panel,.question-card,.exam-side,.filters,.mode-card,.kpi{border-color:var(--line)}
.btn,.search-field input,.image-filter,.search-button,.menu a,.menu>a,.menu .dd>summary,.menu-toggle,.drill-actions button{border-radius:var(--r-ctl)}
.search-button{background:var(--navy)}
.answers .answer{border-radius:var(--r-ctl)}

/* ---------------------------------------------------------------- akcent: zakreślacz */
.answers .answer.selected{border-color:var(--mark);background:var(--mark-soft)}
.answers .answer.selected>span{background:var(--mark);color:var(--mark-ink);box-shadow:none}
.answers .answer:hover{border-color:var(--navy)}
.grid-nav button.current{outline:0;background:var(--mark);border-color:var(--mark);color:var(--mark-ink)}
.grid-nav button.done{background:#E3E8F6;border-color:#B7C2E4}
.grid-nav button.done.current{background:var(--mark)}
::selection{background:var(--mark);color:var(--mark-ink)}

/* ---------------------------------------------------------------- nagłówek: płaski granat (bez gradientów i poświat) */
.top{background:var(--navy)}
body.landing .top,body.dashboard .top,body.stats .top{background:var(--navy)}
.top .hero{padding-block:44px}
.top .lead{color:#D5DCF0}
.brand small{white-space:nowrap}

/* ---------------------------------------------------------------- kursy: etykiety czytelne (kontrast AA, min. 13px) */
:root{--exercise-accent:#7d4f05}
.toc-part-head{color:color-mix(in srgb,var(--part-color,var(--muted)) 76%,#000);font-size:13px;font-weight:700}
.exercise-label,.drill-label,.part-label{font-size:13px}
.answers .answer{font-family:var(--font-body)}
.exercise-label,.exercise summary{color:#7d4f05}
.part-divider .part-label,.part-intro .part-label{color:color-mix(in srgb,var(--part-color,var(--muted)) 76%,#000);font-size:13px}
table.ref-table th,.history th,.table th{font-size:13px}
.copy-btn,.lesson-eyebrow,.toc-legend{font-size:13px}

/* ---------------------------------------------------------------- dostępność i czytelność kursów */
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;border-radius:var(--r-ctl);background:var(--mark);padding:12px 18px;color:var(--mark-ink);font-weight:700;text-decoration:none}
.skip-link:focus{top:12px;outline:3px solid #fff;outline-offset:2px}
#tresc{outline:0}
/* długość wiersza: do ok. 70 znaków */
.lesson p,.lesson li,.intro-card p,.callout p,.task-card li{max-width:70ch}
/* pola luk w ćwiczeniach: cel dotykowy min. 24 px (WCAG 2.2, 2.5.8) */
.drill-gap{padding:4px 6px}
.code-panel-head{font-size:13px;letter-spacing:0}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.top :focus-visible,.lp-final :focus-visible,.lp-why :focus-visible{outline-color:#fff}
summary{padding-block:4px}
.lesson-eyebrow{color:color-mix(in srgb,var(--part-color,var(--muted)) 62%,#000)}
.part-divider .part-label,.part-intro .part-label{color:color-mix(in srgb,var(--part-color,var(--muted)) 66%,#000)}

/* ---------------------------------------------------------------- pulpit, nauka, egzamin: stan nie tylko kolorem, większe cele */
.answers .answer.correct::after,.answers .answer.wrong::after{margin-left:auto;padding-left:12px;font-size:20px;font-weight:800;line-height:1}
.answers .answer.correct::after{content:"\2713";color:#0b6b4f}
.answers .answer.wrong::after{content:"\2717";color:#8a2a22}
.answers .answer[aria-pressed="true"]:not(.correct):not(.wrong){outline:0}
[tabindex="-1"]:focus{outline:0}
.tier-pill{font-size:12px}
.link-more{display:inline-flex;align-items:center;min-height:32px}
input[type=checkbox],input[type=radio]{width:20px;height:20px;accent-color:var(--navy)}
.learn-top a{display:inline-flex;align-items:center;min-height:32px}

/* ================================================================ kursy: układ i wygląd ================================================================ */
/* nagłówek kursu: zwarty, statystyki jako zwykła linia liczb zamiast ramki z kafelkami */
body[class*="course-"] .top .course-hero{padding-block:36px 44px}
body[class*="course-"] .top .stats{display:flex;flex-wrap:wrap;gap:12px 0;border:0;border-radius:0;background:transparent;overflow:visible;align-self:end}
body[class*="course-"] .top .stats div{padding:0 28px;background:transparent}
body[class*="course-"] .top .stats div:first-child{padding-left:0}
body[class*="course-"] .top .stats div + div{border-left:1px solid rgba(255,255,255,.24)}
body[class*="course-"] .top .stats strong{color:#fff;font:700 46px/1 var(--font-display);letter-spacing:-.03em}
body[class*="course-"] .top .stats span{margin-top:6px;color:#D5DCF0;font-size:15px;font-weight:400}
body[class*="course-"] .cp-btn{min-height:48px;border-radius:var(--r-ctl);font-family:var(--font-body);font-size:16px}
body[class*="course-"] .cp-btn.primary{border-color:var(--mark);background:var(--mark);color:var(--mark-ink)}
body[class*="course-"] .cp-btn.primary:hover{background:#f7d868}

/* podział na części: bez plakietki, kolor części niesie tylko cienka linia */
body[class*="course-"] .part-divider .part-label{display:block;border-radius:0;background:none;padding:0;margin:0 0 4px;font:700 16px var(--font-body);letter-spacing:0;text-transform:none}
body[class*="course-"] .part-divider h2{font-size:clamp(26px,3.2vw,36px)}

/* lekcja: duża liczba zamiast kolorowego kwadratu, karta bez cienia */
body[class*="course-"] .lesson-number{display:block;width:auto;height:auto;min-width:46px;border-radius:0;background:transparent;box-shadow:none;color:color-mix(in srgb,var(--part-color,var(--navy)) 86%,#000);font:700 60px/.9 var(--font-display);letter-spacing:-.04em;text-align:left}
body[class*="course-"] .lesson-number svg{width:44px;height:44px}
body[class*="course-"] .lesson-top{align-items:flex-start;gap:16px}
body[class*="course-"] .lesson-eyebrow{font-size:15px;font-weight:600}
body[class*="course-"] .lesson-head h3{margin-top:2px;font-size:clamp(26px,3vw,34px);line-height:1.1}
body[class*="course-"] .lesson,body[class*="course-"] .intro-card{border-radius:var(--r-card);box-shadow:none}

/* ramki w treści: płaskie, bez wersalików; "Sprawdź się" jako zakreślony fragment */
body[class*="course-"] .callout{border-radius:var(--r-ctl)}
body[class*="course-"] .callout-head{font-size:15px;text-transform:none;letter-spacing:0}
body[class*="course-"] .exercise{border:0;border-radius:var(--r-ctl);background:var(--mark-soft);box-shadow:none}
body[class*="course-"] .exercise summary{font-family:var(--font-body)}
body[class*="course-"] .drill{border-radius:var(--r-ctl);border-left-width:1px;box-shadow:none}

/* zadanie praktyczne: zwykła karta z obramowaniem, bez pasa koloru i ozdobnych kwadratów */
body[class*="course-"] .task-card{overflow:visible;border-radius:var(--r-card);box-shadow:none}
body[class*="course-"] .task-card::before{display:none}
body[class*="course-"] .task-inner{padding-left:clamp(18px,3vw,30px)}
body[class*="course-"] .task-card h4{font-family:var(--font-display);font-size:19px}
body[class*="course-"] .task-card h4::before{display:none}

/* ocena zrozumienia: jeden zwarty rząd przycisków z kropką poziomu zamiast czterech dużych kafli z emoji */
body[class*="course-"] .understand{margin-top:30px;border:0;border-radius:var(--r-card);background:#EEF1F8;padding:16px 20px}
body[class*="course-"] .understand-levels{display:flex;flex-wrap:wrap;gap:8px}
body[class*="course-"] .lv{flex-direction:row;gap:9px;min-height:44px;border-radius:var(--r-ctl);padding:0 16px;font:600 15px var(--font-body)}
body[class*="course-"] .lv .ico{display:none}
body[class*="course-"] .lv::before{content:"";flex:none;width:12px;height:12px;border-radius:50%;background:var(--c,#94a3b8)}
body[class*="course-"] .lv.l1{--c:var(--lv1)}body[class*="course-"] .lv.l2{--c:var(--lv2)}body[class*="course-"] .lv.l3{--c:var(--lv3)}body[class*="course-"] .lv.l4{--c:var(--lv4)}
body[class*="course-"] .lv[aria-checked="true"]::after{content:"\2713";font-weight:800}
body[class*="course-"] .chip{min-height:40px;border-radius:var(--r-ctl);font:600 15px var(--font-body)}
body[class*="course-"] .top .stats{display:grid;grid-template-columns:repeat(3,minmax(0,auto));justify-content:start}
body[class*="course-"] .top .stats div{padding:0 18px}
body[class*="course-"] .top .stats strong{font-size:38px}
body[class*="course-"] .top .stats span{font-size:14px;line-height:1.3}
body[class*="course-"] .lesson-top .lesson-number{color:color-mix(in srgb,var(--part-color,var(--navy)) 86%,#000)}
body[class*="course-"] .lesson-top .lesson-number svg{color:inherit;stroke:currentColor}

/* telefon: tabela jako lista, żeby żadna kolumna nie chowała się poza ekranem */
@media(max-width:640px){
  body[class*="course-"] .lesson table,body[class*="course-"] .task-card table,body[class*="course-"] .intro-card table{display:block;width:100%}
  body[class*="course-"] .lesson table thead,body[class*="course-"] .task-card table thead,body[class*="course-"] .intro-card table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
  body[class*="course-"] .lesson table tbody,body[class*="course-"] .task-card table tbody,body[class*="course-"] .intro-card table tbody{display:block}
  body[class*="course-"] .lesson table tr,body[class*="course-"] .task-card table tr,body[class*="course-"] .intro-card table tr{display:block;padding:10px 0;border-bottom:1px solid var(--line)}
  body[class*="course-"] .lesson table td,body[class*="course-"] .task-card table td,body[class*="course-"] .intro-card table td{display:block;width:auto;border:0;padding:3px 14px}
  body[class*="course-"] table td[data-label]::before{content:attr(data-label);display:block;color:var(--muted);font-size:13px;font-weight:700}
}

/* ---------------------------------------------------------------- zwijane lekcje */
.lesson-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 18px}
.lesson-tools-label{margin-right:6px;color:var(--muted);font-size:15px;font-weight:700}
.lesson-tools-btn{min-height:40px;border:1px solid var(--line);border-radius:var(--r-ctl);background:#fff;padding:0 14px;color:var(--ink);font:600 15px var(--font-body);cursor:pointer}
.lesson-tools-btn:hover{border-color:var(--navy)}
.lesson-head{cursor:pointer}
.lesson-head h3 .lesson-toggle{display:inline;border:0;background:none;padding:0;color:inherit;font:inherit;letter-spacing:inherit;text-align:left;cursor:pointer}
.lesson-head h3 .lesson-toggle::after{content:"";display:inline-block;width:.34em;height:.34em;margin-left:.5em;border-right:.1em solid currentColor;border-bottom:.1em solid currentColor;transform:translateY(-.14em) rotate(45deg);transition:transform .18s}
.lesson-head h3 .lesson-toggle[aria-expanded="true"]::after{transform:translateY(.02em) rotate(-135deg)}
.lesson-head:hover h3 .lesson-toggle{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}
.lesson.is-collapsed .lesson-head{margin-bottom:0;padding-bottom:0}
.lesson.is-collapsed{padding-bottom:20px}
@media(prefers-reduced-motion:reduce){.lesson-head h3 .lesson-toggle::after{transition:none}}
@media print{.lesson-body[hidden]{display:block!important}.lesson-tools{display:none}}
.lesson-head h3 .lesson-toggle{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.lesson-head h3 .lesson-toggle::after{flex:none;width:.4em;height:.4em;margin-left:0;border-right-width:.11em;border-bottom-width:.11em}
.lesson-head h3 .lesson-toggle[aria-expanded="false"]::after{transform:translateY(-.12em) rotate(45deg)}
.lesson-head h3 .lesson-toggle[aria-expanded="true"]::after{transform:translateY(.1em) rotate(-135deg)}
.lesson-top{width:100%}
.lesson-top-text{flex:1;min-width:0}
.lesson.task.is-collapsed{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:20px clamp(18px,4vw,34px)}
body[class*="course-"] .lesson-badge{display:block;width:auto;height:auto;min-width:46px;border-radius:0;background:transparent;box-shadow:none;color:color-mix(in srgb,var(--part-color,var(--navy)) 86%,#000);font:700 60px/.9 var(--font-display);letter-spacing:-.04em;text-align:left}