:root{
  --bg:#07111F;--panel:#0B1728;--card:#0F1D31;--line:#1F3350;--line2:#29426A;
  --text:#EAF3FF;--soft:#C3D2E8;--muted:#8EA3C0;--accent:#46D8FF;--accent2:#8BE8FF;--ink:#04121F;
  --ok-bg:#0F2A22;--ok:#50E3A4;--err-bg:#2C1220;--err:#FF8A97;
  --serif:'Newsreader',Georgia,serif;--sans:'Manrope',system-ui,sans-serif;--mono:'JetBrains Mono',ui-monospace,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.55}
a{color:var(--accent)}a:hover{color:var(--accent2)}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.2px;margin:0}
h1{font-size:clamp(28px,4vw,42px);line-height:1.15}
h2{font-size:24px}h3{font-size:20px}
p{margin:0}
.muted{color:var(--muted)}.soft{color:var(--soft)}.mono{font-family:var(--mono)}
.eyebrow{font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent)}
.label{font-size:12px;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);font-weight:600}
.stack{display:flex;flex-direction:column;gap:var(--g,16px)}
.row{display:flex;flex-wrap:wrap;gap:var(--g,12px);align-items:center}
.spacer{flex:1}

/* Pasek górny */
.top{display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:14px 24px;border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand:hover{color:var(--text)}
.logo{width:36px;height:36px;border-radius:10px;border:1px solid #1E4A66;display:flex;align-items:center;justify-content:center;color:var(--accent);font-family:var(--serif);font-size:20px;font-weight:600;flex:none}
.brand b{font-family:var(--serif);font-size:19px;font-weight:600;display:block;line-height:1.2}
.brand small{font-size:12px;color:var(--muted);display:block}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:10px 14px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:14px}
.nav a:hover{color:var(--text);background:var(--card)}
.nav a.on{background:#13233A;color:var(--text);font-weight:600}
.avatar{width:40px;height:40px;border-radius:50%;border:1px solid #29426A;background:var(--card);color:var(--text);font-weight:600;display:flex;align-items:center;justify-content:center;font-size:14px}
.progress{display:flex;align-items:center;gap:12px;min-width:240px}
.bar{flex:1;height:6px;background:var(--line);border-radius:99px;overflow:hidden;min-width:100px}
.bar>i{display:block;height:100%;background:var(--accent);border-radius:99px}

/* Przyciski i formularze */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;border:1px solid var(--line2);background:transparent;color:var(--text);font:600 14px var(--sans);cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:#2E4A72;color:var(--text);background:#0F1D31}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:700}
.btn.primary:hover{background:var(--accent2);color:var(--ink)}
.btn.outline{border-color:var(--accent);color:var(--accent)}
.btn.done{background:var(--ok-bg);border-color:#1E5A45;color:var(--ok)}
.btn.danger{border-color:#6A2A3D;color:var(--err)}
.btn.sm{min-height:36px;padding:0 12px;font-size:13px}
.btn[disabled]{opacity:.4;pointer-events:none}
label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
input,select,textarea{width:100%;min-height:44px;padding:10px 14px;border-radius:10px;border:1px solid var(--line2);background:var(--bg);color:var(--text);font:15px var(--sans)}
textarea{min-height:120px;resize:vertical;line-height:1.55}
input:focus,select:focus,textarea:focus,.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.check{display:flex;align-items:center;gap:10px;color:var(--soft);font-size:14px;margin:0}
.check input{width:18px;height:18px;min-height:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--min,240px),1fr));gap:var(--g,16px)}
.card{padding:22px;border-radius:16px;border:1px solid var(--line);background:var(--panel)}
.card.dashed{border-style:dashed;border-color:#29426A;background:transparent}
.pill{display:inline-flex;font-size:12px;padding:5px 10px;border-radius:99px;border:1px solid var(--line2);color:var(--soft);white-space:nowrap}
.pill.ok{background:var(--ok-bg);border-color:transparent;color:var(--ok)}
.pill.off{background:var(--line);border-color:transparent;color:var(--soft)}
.flash{padding:12px 16px;border-radius:10px;font-size:14px}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.err{background:var(--err-bg);color:var(--err)}

/* Strony zwykłe */
.page{max-width:1180px;margin:0 auto;padding:44px 24px 72px}
.narrow{max-width:460px;margin:0 auto;padding:72px 24px}

/* Widok lekcji */
.course{display:flex;flex-wrap:wrap;align-items:stretch;min-height:calc(100vh - 69px)}
.side{flex:1 1 300px;max-width:360px;background:var(--panel);border-right:1px solid var(--line);padding:20px 14px}
.side-inner{position:sticky;top:85px;max-height:calc(100vh - 100px);overflow:auto;padding-right:2px}
.chapter{border-radius:12px;margin-bottom:6px}
.chapter[open]{background:var(--card)}
.chapter summary{list-style:none;display:flex;align-items:center;gap:12px;padding:12px;cursor:pointer;min-height:52px;border-radius:12px}
.chapter summary::-webkit-details-marker{display:none}
.chapter summary:hover{background:#0F1D31}
.chapter .num{font-family:var(--mono);font-size:12px;color:var(--accent);width:22px;flex:none}
.chapter .ct{flex:1;display:flex;flex-direction:column}
.chapter .ct b{font-size:14px;font-weight:600;line-height:1.35}
.chapter .ct small{font-size:12px;color:var(--muted)}
.chev{transition:transform .2s;flex:none}
.chapter[open] .chev{transform:rotate(180deg)}
.lessons{padding:0 6px 10px;display:flex;flex-direction:column;gap:2px}
.lessons a{display:flex;align-items:center;gap:12px;min-height:44px;padding:8px 10px;border-radius:9px;color:var(--soft);text-decoration:none;font-size:13.5px;line-height:1.35}
.lessons a:hover{background:#13233A;color:var(--text)}
.lessons a.on{background:#162A45;color:#fff;box-shadow:inset 2px 0 0 var(--accent)}
.dot{width:18px;height:18px;flex:none;border-radius:50%;border:1.5px solid #2E4A72;display:flex;align-items:center;justify-content:center}
.lessons a.on .dot{border-color:var(--accent)}
.dot.full{background:var(--accent);border-color:var(--accent)}
.lessons .t{flex:1}
.lessons .d{font-family:var(--mono);font-size:11px;color:var(--muted)}
.main{flex:999 1 560px;min-width:0;padding:36px 44px 64px}
.main-inner{max-width:960px;margin:0 auto;display:flex;flex-direction:column;gap:24px}
.video{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#050D18;border:1px solid var(--line)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video .empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:radial-gradient(ellipse at 30% 20%,#10203A 0%,#050D18 70%);color:var(--muted);font-size:14px;text-align:center;padding:20px}
.play{width:72px;height:72px;border-radius:50%;border:1px solid var(--accent);display:flex;align-items:center;justify-content:center;background:rgba(70,216,255,.08)}
.controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.controls form{margin:0}
.content{font-size:16px;line-height:1.75;color:var(--soft);white-space:pre-line}
.lead{font-size:18px;color:var(--soft);line-height:1.6}
.task{padding:20px;border-radius:14px;border:1px solid var(--line2);background:var(--panel)}

/* Tabele */
.table{border:1px solid var(--line);border-radius:16px;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:680px}
th{text-align:left;color:var(--muted);font-size:12px;letter-spacing:1px;text-transform:uppercase;font-weight:600;padding:14px 16px}
td{padding:14px 16px;border-top:1px solid var(--line);vertical-align:middle}
td form{display:inline}

/* Admin */
.admin{display:flex;flex-wrap:wrap;min-height:calc(100vh - 69px)}
.admin-nav{flex:1 1 220px;max-width:240px;background:var(--panel);border-right:1px solid var(--line);padding:24px 14px;display:flex;flex-direction:column;gap:4px}
.admin-nav a{padding:12px;border-radius:9px;color:var(--muted);text-decoration:none;font-size:14px}
.admin-nav a:hover{color:var(--text);background:var(--card)}
.admin-nav a.on{background:#14253D;color:var(--text);font-weight:600;box-shadow:inset 2px 0 0 var(--accent)}
.admin-main{flex:999 1 560px;min-width:0;padding:40px 40px 72px}
.admin-main>.stack{max-width:1060px}
.tree-ch{border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.tree-ch header{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.tree-ch header form{display:flex;gap:8px;flex:1;min-width:240px;margin:0}
.tree-ch header input{min-height:40px;font-weight:600}
.tree-l{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 16px;border-top:1px solid var(--line)}
.tree-l:first-of-type{border-top:0}
.tree-l a.t{flex:1;min-width:200px;color:var(--text);text-decoration:none}
.tree-l a.t:hover{color:var(--accent)}
.tree-l form{margin:0;display:flex;gap:6px}
.copy{font-family:var(--mono);font-size:13px;color:var(--soft);word-break:break-all}

@media (max-width:760px){
  .side{max-width:none;border-right:0;border-bottom:1px solid var(--line)}
  .side-inner{position:static;max-height:none}
  .main,.admin-main{padding:24px 16px 56px}
  .admin-nav{max-width:none;flex-direction:row;flex-wrap:wrap;border-right:0;border-bottom:1px solid var(--line)}
  .progress{min-width:0;flex:1 1 100%}
  .top{padding:12px 16px}
}

/* ===== Wersja 2: program kursu, pasek boczny, treść lekcji, bloki interaktywne, tryb spokojny ===== */
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.side-back{display:block;font-size:13px;margin:0 8px 12px;text-decoration:none}
.side-search{margin-bottom:14px}
.ln{font-family:var(--mono);font-size:11px;color:var(--muted);margin-right:2px}
.lessons a.on .ln{color:var(--accent)}
.side-hidden .side{display:none}
.lesson-tools{justify-content:flex-end}
.next-up{font-size:13px;text-align:right;margin-top:-12px}

.course-hero{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start}
.course-stats .big{display:block;font-family:var(--serif);font-size:30px;line-height:1.1}
.program-ch{border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.program-ch summary{list-style:none;display:flex;align-items:center;gap:14px;padding:16px 18px;cursor:pointer;min-height:56px}
.program-ch summary::-webkit-details-marker{display:none}
.program-ch .num{font-family:var(--mono);font-size:13px;color:var(--accent);width:24px}
.program-ch .ct{flex:1;display:flex;flex-direction:column}
.program-ch .ct b{font-size:16px}
.program-ch .ct small{font-size:12px;color:var(--muted)}
.program-ch[open] .chev{transform:rotate(180deg)}
.program-body{padding:0 18px 16px 56px}
.ch-desc{font-size:14.5px;line-height:1.65;max-width:760px;margin-bottom:10px}
.program-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.program-list a{display:flex;align-items:center;gap:12px;min-height:42px;padding:6px 10px;border-radius:8px;color:var(--soft);text-decoration:none;font-size:14.5px}
.program-list a:hover{background:var(--card);color:var(--text)}
.program-list .t{flex:1}
@media (max-width:760px){.program-body{padding:0 14px 14px}}

/* Treść lekcji */
.prose{font-size:16.5px;line-height:1.75;color:var(--soft);max-width:760px}
.prose>*+*{margin-top:16px}
.prose h2{font-size:26px;color:var(--text);margin-top:40px}
.prose h3{font-size:20px;color:var(--text);margin-top:28px;font-family:var(--sans);font-weight:700}
.prose ul,.prose ol{padding-left:22px}
.prose li+li{margin-top:6px}
.prose strong{color:var(--text)}
.prose code{font-family:var(--mono);font-size:.88em;background:#10203A;border:1px solid var(--line);padding:1px 6px;border-radius:6px;color:#9EEAFF}
.prose img{max-width:100%;border-radius:12px;border:1px solid var(--line)}
.code{margin:18px 0 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#050D18}
.code figcaption{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 6px 14px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase}
.code pre{margin:0;padding:14px 16px;overflow-x:auto}
.code code{background:none;border:0;padding:0;color:#EAF3FF;font-size:14px;line-height:1.6}
.copy-btn{min-height:32px;padding:0 10px;border-radius:7px;border:1px solid var(--line2);background:transparent;color:var(--soft);font:600 12px var(--sans);cursor:pointer}
.box{border-radius:14px;padding:16px 18px;border:1px solid var(--line2);background:var(--panel)}
.box>*+*{margin-top:10px}
.box-t{display:block;font-size:12px;letter-spacing:1.3px;text-transform:uppercase;font-weight:700;color:var(--accent);margin-bottom:6px}
.box-najwazniejsze{border-color:#1E4A66;background:#0A1A2A}
.box-uwaga{border-color:#6A2A3D;background:#24101A}.box-uwaga .box-t{color:var(--err)}
.box-egzamin{border-color:#1E5A45;background:#0B2219}.box-egzamin .box-t{color:var(--ok)}
.more{border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.more summary{cursor:pointer;padding:12px 16px;font-weight:600;color:var(--text);min-height:44px}
.more-body{padding:0 16px 14px}
.more-body>*+*{margin-top:12px}
.reader-nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:12px;border:1px dashed var(--line2);border-radius:12px}

/* Bloki interaktywne */
.widget{border:1px solid var(--line2);border-radius:16px;background:var(--panel);padding:16px;display:flex;flex-direction:column;gap:14px;color:var(--text);font-size:15px;line-height:1.55}
.w-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.w-tag{font-size:11px;letter-spacing:1.3px;text-transform:uppercase;font-weight:700;color:var(--ink);background:var(--accent);border-radius:99px;padding:4px 10px}
.w-title{font-weight:600}
.w-count{margin-left:auto;font-family:var(--mono);font-size:13px;color:var(--muted)}
.w-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.w-note{font-size:13px}
.live-grid,.slider-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px}
.live-code{min-height:240px;font:13.5px/1.6 var(--mono);background:#050D18;color:#EAF3FF;tab-size:2;white-space:pre;overflow:auto}
.live-view{width:100%;min-height:240px;border:1px solid var(--line2);border-radius:10px;background:#fff}
.live-toggles{display:flex;flex-direction:column;gap:6px}
.live-toggle{display:flex;align-items:center;gap:10px;margin:0;color:var(--soft);font-size:14px;cursor:pointer;padding:8px 10px;border:1px dashed var(--line2);border-radius:10px}
.live-toggle input,.quiz-o input,.steps input{width:18px;height:18px;min-height:0;flex:none;accent-color:#46D8FF}
.live-toggle code,.sl code,.input-q code{font-family:var(--mono);font-size:13px;color:#9EEAFF}
.slider-controls{display:flex;flex-direction:column;gap:14px}
.sl label{display:flex;justify-content:space-between;gap:10px;margin:0 0 6px;color:var(--soft)}
.sl b{font-family:var(--mono);font-size:13px;color:var(--accent)}
.sl input[type=range]{padding:0;min-height:32px;border:0;background:transparent;accent-color:#46D8FF}
.sl-opts{display:flex;flex-wrap:wrap;gap:6px}
.sl-opts [aria-pressed=true]{border-color:var(--accent);color:var(--accent)}
.slider-css{margin:0;padding:12px 14px;background:#050D18;border:1px solid var(--line);border-radius:10px;overflow-x:auto}
.slider-css code{font:13.5px/1.6 var(--mono);color:#EAF3FF;background:none;border:0;padding:0}
.quiz-q{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.quiz-q+.quiz-q{border-top:1px solid var(--line);padding-top:14px}
.quiz-q legend{font-weight:600;margin-bottom:8px;padding:0}
.quiz-o{display:flex;align-items:center;gap:12px;margin:0;padding:10px 12px;border:1px solid var(--line2);border-radius:10px;color:var(--soft);cursor:pointer;font-size:15px}
.quiz-o:hover{border-color:#2E4A72}
.quiz-o.ok{border-color:#1E5A45;background:var(--ok-bg);color:var(--ok)}
.quiz-o.bad{border-color:#6A2A3D;background:var(--err-bg);color:var(--err)}
.quiz-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.quiz-fb{font-size:14px;color:var(--soft);margin:0}
.quiz-fb.ok{color:var(--ok)}.quiz-fb.bad{color:var(--err)}
.input-q+.input-q{border-top:1px solid var(--line);padding-top:14px}
.input-q label{color:var(--text);font-size:15px;font-weight:600}
.input-row{display:flex;flex-wrap:wrap;gap:8px}
.mono-in{font-family:var(--mono);flex:1 1 220px;min-width:0}
.subnet-in{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.subnet-l{display:flex;flex-direction:column;gap:6px;margin:0}
.subnet-l b{font-family:var(--mono);color:var(--accent)}
.subnet-l input[type=range]{padding:0;min-height:32px;border:0;background:transparent;accent-color:#46D8FF}
.subnet-out{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin:0}
.subnet-out div{background:#050D18;border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.subnet-out dt{font-size:12px;color:var(--muted)}
.subnet-out dd{margin:2px 0 0;font-family:var(--mono);font-size:15px;color:var(--text)}
.steps ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;counter-reset:s}
.steps li label{display:flex;align-items:flex-start;gap:12px;margin:0;padding:10px 12px;border:1px solid var(--line);border-radius:10px;color:var(--soft);font-size:15px;cursor:pointer}
.steps li.done label{color:var(--muted);text-decoration:line-through;text-decoration-color:#555}
.btn[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}

/* Tryb spokojny — mniej bodźców, większy tekst, jedna rzecz naraz */
.calm{--accent:#9EEAFF;--accent2:#B7F0FF;--soft:#C8D7EC;--line:#1E3150;--line2:#24395A}
.calm body{font-size:18px}
.calm *,.calm *::before,.calm *::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
.calm .top .progress,.calm .lesson-tools [href],.calm .pill{display:none}
.calm .prose{font-size:19px;line-height:1.9;max-width:66ch;color:#DCE8F8}
.calm .prose h2{font-size:28px;margin-top:8px}
.calm .lead{font-size:20px;line-height:1.75;color:#DCE8F8}
.calm .main-inner{max-width:780px;gap:30px}
.calm h1{font-size:34px}
.calm .widget{font-size:17px}
.calm .eyebrow{color:var(--muted)}
.calm .w-tag{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.calm .box-najwazniejsze{background:var(--panel)}
.calm .video .empty{display:none}
.calm .video:has(.empty){display:none}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

/* Symulator terminala i chmod */
.term-out{margin:0;min-height:160px;max-height:360px;overflow:auto;padding:12px 14px;background:#040A14;border:1px solid var(--line);border-radius:10px;font:13.5px/1.55 var(--mono);color:#D2E0F2;white-space:pre-wrap;word-break:break-word}
.term-out .term-cmd{color:#9EEAFF}
.term-out .term-note{color:var(--muted);font-style:italic}
.term-in{display:flex;align-items:center;gap:8px;background:#040A14;border:1px solid var(--line2);border-radius:10px;padding:0 0 0 12px}
.term-prompt{font:13.5px var(--mono);color:#9EEAFF;margin:0;white-space:nowrap;max-width:45%;overflow:hidden;text-overflow:ellipsis}
.term-in input{border:0;background:transparent;font:14px var(--mono);padding-left:0}
.term-in input:focus{outline:none}
.term-in:focus-within{outline:2px solid var(--accent);outline-offset:2px}
.term-list{display:flex;flex-wrap:wrap;gap:6px}
.term-list .btn{font-family:var(--mono);font-weight:500}
.chmod-grid{display:grid;grid-template-columns:minmax(90px,1.2fr) repeat(3,minmax(56px,1fr)) minmax(48px,.6fr);gap:6px;align-items:center}
.ch-h{font:600 13px var(--mono);color:var(--accent);text-align:center}
.ch-h small{display:block;font:11px var(--sans);color:var(--muted)}
.ch-w{font-size:14px;color:var(--soft)}
.ch-c{display:flex;justify-content:center;margin:0;padding:10px 0;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.ch-c input{width:20px;height:20px;min-height:0;accent-color:#46D8FF}
.ch-d{font:700 20px var(--mono);text-align:center;color:var(--text)}
.chmod-out{display:grid;gap:8px}
.chmod-out label{margin:0}
.chmod-out .mono-in{max-width:140px;font-size:18px;letter-spacing:4px}
.chmod-out p{margin:0;color:var(--soft)}
.chmod-out code{font:14px var(--mono);color:#9EEAFF;background:#050D18;border:1px solid var(--line);padding:2px 8px;border-radius:6px}

/* Testy na ocenę */
.test{border-color:#1E4A66}
.test .w-tag{background:#9EEAFF}
.test-form{display:flex;flex-direction:column;gap:18px}
.tq-n{font-family:var(--mono);color:var(--accent);margin-right:4px}
.test-best{margin:0;color:var(--soft);font-size:14px}
.test-result{border-radius:12px;padding:16px;border:1px solid var(--line2);display:flex;flex-direction:column;gap:10px}
.test-result.pass{background:#0B2219;border-color:#1E5A45}
.test-result.fail{background:#24101A;border-color:#6A2A3D}
.test-score{margin:0;font-size:18px}
.test-review{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:12px}
.test-review li{padding:10px 12px;border-radius:10px;border:1px solid var(--line)}
.test-review li p{margin:4px 0}
.test-review li.ok{border-color:#1E5A45}
.test-review li.bad{border-color:#6A2A3D}
.tr-q{font-weight:600;color:var(--text)}
.tr-mark{font-size:12px;padding:2px 8px;border-radius:99px;margin-left:6px}
li.ok .tr-mark{background:var(--ok-bg);color:var(--ok)}
li.bad .tr-mark{background:var(--err-bg);color:var(--err)}

/* Tabele w treści lekcji */
.prose .md-table{margin-top:18px}
.prose .md-table table{min-width:0;font-size:15px}
.prose .md-table th{text-transform:none;letter-spacing:0;font-size:13px;color:var(--text);background:#0F1D31}
.prose .md-table td{color:var(--soft);vertical-align:top}
.prose .md-table td code,.prose .md-table th code{white-space:nowrap}
.calm .prose .md-table table{font-size:17px}

/* Podgląd konta ucznia przez administratora */
.impersonate { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 0; padding: 10px 16px; background: #241a4a; color: #e6dcff; border-bottom: 1px solid #46D8FF; font-size: 14px; text-align: center; }
.impersonate b { color: #fff; }

/* Wąskie ekrany: nagłówek nie przykleja się do góry i jest zwarty (nie zabiera połowy ekranu telefonu) */
@media (max-width:1000px){
  .top{position:static;gap:10px 14px}
  .top .spacer{display:none}
  .brand small{max-width:60vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}
@media (max-width:760px){
  .nav{order:3;flex:1 1 100%}
  .nav a{padding:8px 10px;font-size:13px}
  .avatar{width:34px;height:34px;font-size:13px}
  .top form .btn.sm{min-height:34px}
  .top form{margin-left:auto!important}
  .progress{order:4}
}

/* Tryb egzaminacyjny */
.test-form.exam{-webkit-user-select:none;user-select:none}
.test-form.exam input{-webkit-user-select:text;user-select:text}
.exam-note{font-size:13px;color:var(--muted);border-left:3px solid var(--accent);padding:6px 0 6px 12px;margin:0 0 14px}
.exam-warn{background:#3b1717;border:1px solid #a33;color:#ffd9d9;border-radius:10px;padding:10px 14px;margin:0 0 14px;font-weight:600;position:sticky;top:8px;z-index:5}
.exam-left{color:#f0b4b4;font-size:14px}

/* =====================================================================
   WYGLĄD v3 — granat + cyjan/fiolet, wyraziste nagłówki, lekkie animacje
   ===================================================================== */
:root{
  --violet:#9D6CFF;--blue:#4C82FF;--yellow:#FFD166;--green:#50E3A4;--red:#FF6B7A;
  --grad:linear-gradient(120deg,#46D8FF 0%,#4C82FF 50%,#9D6CFF 100%);
  --serif:'Space Grotesk','Inter',system-ui,sans-serif;--sans:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --radius:18px;--ease:cubic-bezier(.2,.8,.2,1);
  --shadow:0 18px 50px rgba(0,0,0,.28);
}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(900px 500px at 8% -10%,rgba(70,216,255,.12),transparent 60%),
    radial-gradient(800px 520px at 100% 8%,rgba(157,108,255,.13),transparent 60%),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px),
    var(--bg);
  background-size:auto,auto,32px 32px,32px 32px,auto;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(70,216,255,.3);color:#fff}

/* Nagłówki — wyraziste, nowoczesne */
h1,h2,h3{font-family:var(--serif);font-weight:700;letter-spacing:-.03em}
h1{font-size:clamp(32px,5vw,56px);line-height:1.04}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.15}
h3{font-size:20px}
.eyebrow{font-family:var(--mono);font-weight:700;letter-spacing:.12em;color:var(--accent)}
.grad-text,.wordmark i{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-style:normal}

/* Pasek górny i logo */
.top{background:rgba(7,17,31,.78);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);border-bottom-color:rgba(70,216,255,.14)}
.logo{width:40px;height:40px;border:0;border-radius:12px;transition:transform .5s var(--ease),filter .3s}
.brand:hover .logo{transform:rotate(-8deg) scale(1.06);filter:drop-shadow(0 6px 18px rgba(70,216,255,.45))}
.wordmark{font-family:var(--serif)!important;font-size:19px!important;font-weight:700!important;letter-spacing:-.02em}
.nav a{font-weight:600;transition:color .2s,background .2s}
.nav a.on{background:rgba(70,216,255,.1);color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.avatar{background:var(--grad);color:var(--ink);border:0;font-weight:800}
.bar{background:rgba(255,255,255,.07)}
.bar>i{background:var(--grad);box-shadow:0 0 14px rgba(70,216,255,.45);transition:width .8s var(--ease)}

/* Przyciski */
.btn{border-radius:12px;transition:transform .18s var(--ease),box-shadow .25s,border-color .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-1px);border-color:rgba(70,216,255,.5);background:rgba(70,216,255,.06)}
.btn:active{transform:translateY(0) scale(.98)}
.btn.primary{background:var(--grad);border:0;color:#04121F;font-weight:800;box-shadow:0 8px 26px rgba(76,130,255,.32)}
.btn.primary:hover{color:#04121F;background:var(--grad);box-shadow:0 12px 34px rgba(70,216,255,.45)}
.btn.outline{border-color:rgba(70,216,255,.6);color:var(--accent)}
input,select,textarea{background:rgba(5,13,24,.75);border-color:var(--line2);transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px rgba(70,216,255,.15)}

/* Karty z poświatą pod kursorem */
.card,.program-ch,.controls,.task,.widget,.tcard,.tree-ch,.course-stats,.table{border-radius:var(--radius);border-color:var(--line);background:linear-gradient(180deg,rgba(17,31,52,.82),rgba(11,23,40,.88));box-shadow:0 10px 34px rgba(0,0,0,.18)}
.glow{position:relative;isolation:isolate}
.glow::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:-1;opacity:0;transition:opacity .35s;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(70,216,255,.10),transparent 45%)}
.glow::after{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;padding:1px;opacity:0;transition:opacity .35s;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(70,216,255,.75),rgba(157,108,255,.35) 40%,transparent 70%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.glow:hover::before,.glow:hover::after{opacity:1}
.lift{transition:transform .35s var(--ease),box-shadow .35s}
.lift:hover{transform:translateY(-3px);box-shadow:0 22px 50px rgba(0,0,0,.32)}

/* Kursor — miękkie światło za treścią (tylko mysz) */
.cursor-glow{position:fixed;left:0;top:0;width:520px;height:520px;margin:-260px 0 0 -260px;border-radius:50%;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(76,130,255,.10),rgba(157,108,255,.05) 40%,transparent 68%);transform:translate3d(-999px,-999px,0);transition:opacity .4s;will-change:transform}
body>header,body>main,body>div,body>footer,body>form{position:relative;z-index:1}

/* Wejście strony i treści przy przewijaniu */
@keyframes dpIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.page,.main-inner,.admin-main>.stack,.narrow{animation:dpIn .6s var(--ease) both}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
body.leaving .page,body.leaving .main-inner,body.leaving .admin-main>.stack{opacity:0;transform:translateY(-6px);transition:opacity .16s,transform .16s}

/* Program kursu i spis treści */
.course-hero h1{background:linear-gradient(180deg,#fff,#b9cbe6);-webkit-background-clip:text;background-clip:text;color:transparent}
.program-ch summary{transition:background .2s}
.program-ch[open]{border-color:rgba(70,216,255,.3)}
.program-list a{transition:background .2s,transform .25s var(--ease),color .2s}
.program-list a:hover{transform:translateX(4px)}
.chapter .num,.program-ch .num{font-family:var(--mono);font-weight:700;color:var(--accent)}
.lessons a{transition:background .2s,color .2s,transform .25s var(--ease)}
.lessons a:hover{transform:translateX(3px)}
.lessons a.on{background:linear-gradient(90deg,rgba(70,216,255,.14),rgba(157,108,255,.06));box-shadow:inset 3px 0 0 var(--accent)}
.dot.full{background:var(--grad);border:0}
.side{background:rgba(7,17,31,.55);backdrop-filter:blur(8px)}

/* Treść lekcji — krótkie bloki zamiast ścian tekstu */
.prose{counter-reset:sec}
.prose>p,.prose>ul,.prose>ol{max-width:74ch}
.prose h2{counter-increment:sec;display:flex;align-items:center;gap:14px;margin-top:44px!important;padding-top:24px;border-top:1px solid rgba(70,216,255,.12)}
.prose h2::before{content:counter(sec,decimal-leading-zero);flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;font:700 13px var(--mono);color:var(--accent);
  background:linear-gradient(135deg,#13385c,#172c51);border:1px solid rgba(70,216,255,.28)}
.prose h3{color:#fff}
.prose strong{color:#fff}
.prose ul>li::marker{color:var(--accent)}
.prose ol>li::marker{color:var(--accent);font-family:var(--mono);font-weight:700}
.prose code{background:rgba(70,216,255,.08);border:1px solid rgba(70,216,255,.18);color:#9EEAFF;border-radius:6px}
.prose figure.code{border-radius:14px;border-color:var(--line);background:#050d18;overflow:hidden}
.prose figure.code figcaption{background:#0a1626;position:relative;padding-left:64px}
.prose figure.code figcaption::before{content:"";position:absolute;left:16px;top:50%;width:10px;height:10px;margin-top:-5px;border-radius:50%;background:#ff6b7a;box-shadow:16px 0 0 #ffd166,32px 0 0 #50e3a4}
.prose .md-table th{background:#10223a;color:var(--accent)}
.box{border-radius:14px!important}

/* Karty zadań (wzór „CSS LAB”) */
.tcard{overflow:hidden;margin:18px 0;padding:0}
.tcard-top{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line);background:rgba(12,25,42,.9)}
.tcard-no{flex:none;display:grid;place-items:center;min-width:42px;height:42px;padding:0 8px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;font:800 15px var(--mono)}
.tcard-top h3{margin:0!important;font-size:20px;padding:0!important;border:0!important}
.tcard-top h3::before{display:none!important}
.tcard-level{margin-left:auto;padding:5px 10px;border-radius:999px;background:rgba(80,227,164,.1);color:var(--green);font:800 11px var(--mono);letter-spacing:.05em;white-space:nowrap}
.tcard-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:12px}
.tcard-goal{margin:0;color:var(--soft);font-size:15px}
.tcard-do,.tcard-dont{padding:12px 14px;border-radius:12px;border:1px solid var(--line)}
.tcard-do{background:rgba(76,130,255,.06)}
.tcard-do>strong{color:var(--accent)}
.tcard-dont{background:rgba(255,107,122,.06);border-color:rgba(255,107,122,.25)}
.tcard-dont>strong{color:var(--red)}
.tcard-do>strong,.tcard-dont>strong{display:block;font:800 12px var(--mono);letter-spacing:.08em;margin-bottom:4px}
.tcard-do ul,.tcard-dont ul{margin:0;padding-left:20px}
.tcard-dont li::marker{content:"✕  ";color:var(--red)}
.tcard-note{position:relative;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#06101c}
.tcard-note-h{padding:8px 12px;border-bottom:1px solid var(--line);color:var(--yellow);font:700 11.5px var(--mono);letter-spacing:.05em}
.tcard-note pre{margin:0;padding:12px 14px;color:#8da3bf;font:13px/1.6 var(--mono);white-space:pre-wrap}
.tcard-note .copy-btn{position:absolute;top:4px;right:6px}
.tcard-tip{border-left:4px solid var(--accent);padding:10px 12px;border-radius:10px;background:rgba(70,216,255,.06);font-size:14px}
.tcard-check{padding:10px 12px;border-radius:11px;border:1px solid rgba(80,227,164,.22);background:rgba(80,227,164,.07);font-size:14px}
.tcard-check>strong{color:var(--green)}
.tcard-start figure.code{margin:0}

/* Porównanie ŹLE / DOBRZE */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0}
.cmp-col{border:1px solid var(--line);border-radius:14px;padding:12px;background:rgba(17,31,52,.6)}
.cmp-col.bad{border-color:rgba(255,107,122,.35)}
.cmp-col.good{border-color:rgba(80,227,164,.35)}
.cmp-h{display:inline-block;margin-bottom:8px;padding:4px 9px;border-radius:7px;font:800 11px var(--mono);letter-spacing:.08em}
.cmp-col.bad .cmp-h{background:rgba(255,107,122,.14);color:var(--red)}
.cmp-col.good .cmp-h{background:rgba(80,227,164,.12);color:var(--green)}
.cmp-col figure.code{margin:0!important}
.cmp-col p{margin:8px 0 0!important;font-size:14px;color:var(--soft)}

/* Zanim zaczniesz */
.startbox{margin:20px 0;border:1px solid rgba(255,209,102,.35);border-radius:20px;background:linear-gradient(135deg,rgba(255,209,102,.08),rgba(70,216,255,.03));overflow:hidden}
.startbox-t{padding:14px 18px;color:var(--yellow);font:800 15px var(--mono);letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid rgba(255,209,102,.2)}
.startbox-g{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;padding:14px}
.startbox-c{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:12px;background:rgba(7,17,31,.55);font-size:14px}
.startbox-c span{flex:none;font:800 12px var(--mono);color:var(--yellow);padding-top:2px}
.startbox-c strong{display:block;color:var(--accent)}

/* Edytor z podglądem na żywo */
.editor-wrap{display:grid;gap:20px}
.editor-preview{display:flex;flex-direction:column;gap:10px;padding:14px}
.editor-preview iframe{width:100%;height:70vh;border:1px solid var(--line);border-radius:12px;background:var(--bg)}
@media (min-width:1400px){
  .admin-main>.stack{max-width:none}
  .editor-wrap{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start}
  .editor-preview{position:sticky;top:90px}
  .editor-preview iframe{height:calc(100vh - 170px)}
}
.preview-body .main{padding:24px}

/* Pasek administratora na stronach ucznia */
.admin-fab{position:fixed;right:16px;bottom:16px;z-index:50;display:flex;align-items:center;gap:6px;padding:6px;border-radius:14px;border:1px solid rgba(70,216,255,.35);background:rgba(7,17,31,.9);backdrop-filter:blur(10px);box-shadow:var(--shadow)}
.admin-fab a{padding:8px 12px;border-radius:10px;text-decoration:none;font-size:13px;font-weight:700;color:var(--text)}
.admin-fab a:hover{background:rgba(70,216,255,.12);color:#fff}
.admin-fab-t{padding:6px 10px;border-radius:9px;background:var(--grad);color:#04121F;font:800 11px var(--mono);letter-spacing:.06em;text-transform:uppercase}
.admin-edit{margin:0 0 10px}
.site-foot{max-width:1180px;margin:0 auto;padding:28px 24px 90px;color:var(--muted);font-size:13px;text-align:center}
.test-locked{margin-top:14px;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,209,102,.3);background:rgba(255,209,102,.07);color:#ffe3a3}

/* Wynik testu */
.test-result.pass{border-color:rgba(80,227,164,.4)}
.test-result.fail{border-color:rgba(255,107,122,.35)}

@media (max-width:800px){
  .cmp{grid-template-columns:1fr}
  .prose h2::before{width:36px;height:36px}
  .admin-fab{left:12px;right:12px;bottom:12px;justify-content:space-between}
}

/* Tryb spokojny i ograniczony ruch: bez poświaty, animacji i światła kursora */
.calm .cursor-glow,.calm .glow::before,.calm .glow::after{display:none}
.calm .reveal{opacity:1;transform:none}
.calm .page,.calm .main-inner,.calm .admin-main>.stack{animation:none}
.calm body{background:var(--bg)}
@media (prefers-reduced-motion:reduce){
  .cursor-glow{display:none}
  .reveal{opacity:1;transform:none}
  .page,.main-inner,.admin-main>.stack,.narrow{animation:none}
  .lift:hover,.btn:hover{transform:none}
}
@media (hover:none){.cursor-glow{display:none}.glow::before,.glow::after{display:none}}
.prose pre code,.tcard-note pre code{background:none;border:0;padding:0;color:inherit;border-radius:0}
.prose figure.code pre{color:#dcecff}

.tcard li strong{color:var(--text);font-weight:700}