:root{color-scheme:dark;--bg:#0b161e;--card:#162935;--ink:#f8eedb;--muted:#bdd0d0;--gold:#e4bc7a;--line:#395665}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse at 80% -30%,#2a4c4b 0%,transparent 55%),var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}button,a,input{font:inherit}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ffe2aa;outline-offset:4px}#edu-app{max-width:1290px;margin:auto;padding:clamp(14px,3vw,32px)}.edu-header{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:12px 0 20px}.edu-brand{color:var(--gold);font-weight:800;text-decoration:none}.edu-brand-name{font-size:13px;letter-spacing:.16em;font-weight:800;color:#e9dbbb}.edu-brand-name span{color:#96aeb8}.edu-hero{padding:clamp(24px,5vw,55px);border:1px solid #50666c;border-radius:22px;background:linear-gradient(124deg,#1a373d,#111f2a);margin:10px 0 22px}.edu-hero.compact{padding:26px 32px}.edu-eyebrow{color:var(--gold);font-size:12px;font-weight:900;letter-spacing:.16em}.edu-hero h1,.edu-lesson h1{font:600 clamp(33px,5vw,65px)/1.1 Georgia,serif;margin:9px 0 16px;color:#ffdfad}.edu-hero.compact h1{font-size:clamp(29px,4vw,43px)}.edu-hero p{font-size:18px;color:var(--muted);max-width:900px;margin:0}.edu-meta{margin-top:19px;color:#d4bf99;font-weight:700;font-size:14px}.edu-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.edu-category,.edu-topic{border:1px solid var(--line);background:#172936;color:var(--ink);border-radius:17px;text-align:left;padding:22px;transition:transform .15s,border-color .15s}.edu-category:hover,.edu-topic:hover{border-color:var(--gold);transform:translateY(-2px)}.edu-category{display:flex;flex-direction:column;align-items:flex-start;gap:8px;min-height:200px}.edu-category .edu-icon{font-size:31px}.edu-category strong{font:600 25px Georgia,serif;color:#f6dbb5}.edu-category small{color:var(--muted);font-size:14px}.edu-category em{color:var(--gold);font-size:14px;font-weight:800;font-style:normal;margin-top:auto}.edu-breadcrumb{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:10px 0 15px;color:var(--muted);font-size:14px}.edu-breadcrumb button{border:1px solid var(--line);border-radius:10px;padding:8px 14px;background:#253945;color:#ffe2ad;font-weight:700}.edu-topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.edu-topic{display:flex;align-items:center;gap:18px;min-height:100px}.edu-topic .edu-topic-no{color:var(--gold);font-size:19px;font-weight:800}.edu-topic strong{display:block;color:#fce2b7;font-size:18px}.edu-topic small{display:block;color:var(--muted);font-size:13px;margin-top:3px}.edu-topic b{margin-left:auto}.edu-workspace{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.85fr);gap:18px;align-items:start}.edu-lesson,.edu-panel{border:1px solid var(--line);background:linear-gradient(145deg,#182b36,#111f29);border-radius:20px;padding:clamp(18px,3vw,32px)}.edu-lesson h1{font-size:clamp(30px,4vw,46px);margin:8px 0}.edu-lesson p{color:var(--muted);max-width:680px;margin:0 0 22px;font-size:17px}.edu-diagram{max-width:100%;aspect-ratio:560/275;display:block}.edu-diagram svg{max-width:100%;width:100%;height:auto}.edu-diagram-caption{font-size:12px;color:#aec5c4;margin-top:12px}.edu-panel h2{font:600 29px Georgia,serif;margin:8px 0 22px;color:#f8d5a3}.edu-panel label{display:block;font-weight:800;margin-bottom:10px}.edu-control{display:grid;grid-template-columns:46px minmax(0,1fr) 46px;gap:10px;align-items:center}.edu-control button,.edu-toggle{border:1px solid #bda37f;border-radius:10px;min-height:48px;background:#304449;color:#fff0d3;font-size:24px}.edu-control input{width:100%;accent-color:#e7b76b}.edu-value{font-size:28px;color:#ffdfaa;font-weight:900;text-align:center;margin:7px 0 19px}.edu-toggle{font-size:15px;width:100%;margin:0 0 14px}.edu-run{border:0;border-radius:12px;background:#e7bb74;color:#132029;font-weight:900;min-height:55px;width:100%;padding:12px}.edu-run:hover{background:#ffdda5}.edu-result{background:#223c40;border:1px solid #507b70;border-radius:14px;padding:17px;margin-top:19px}.edu-result span{display:block;font-size:11px;letter-spacing:.15em;color:#b2d8c8;font-weight:800}.edu-result strong{font-size:18px;color:#fff0c6;display:block;margin:5px 0}.edu-result p{margin:0;color:#d4e5df;font-size:14px}.edu-fact{border-top:1px solid #3a5559;margin-top:22px;padding-top:13px;color:var(--muted)}.edu-fact summary{cursor:pointer;color:#e6c692;font-weight:800}.edu-fact p{font-size:14px}.edu-reset{margin-top:16px;border:0;background:none;color:#bdcbcc;text-decoration:underline;padding:10px}.edu-flash{animation:edu-flash .65s}@keyframes edu-flash{50%{border-color:#fae5a6;box-shadow:0 0 0 3px #fbe4aa55}}@media(max-width:920px){.edu-workspace{grid-template-columns:1fr}.edu-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:590px){#edu-app{padding:12px}.edu-category-grid,.edu-topic-list{grid-template-columns:1fr}.edu-category{min-height:160px}.edu-hero{padding:22px}.edu-lesson,.edu-panel{padding:16px}.edu-lesson h1{font-size:35px}.edu-hero p{font-size:16px}.edu-brand-name span{display:none}.edu-diagram-caption{margin-top:8px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}

/* 4.82.2 – żywa interakcja i porównanie w podstawowej pracowni */
.edu-live-diagram{position:relative;overflow:hidden;border-radius:17px}
.edu-live-trace{position:absolute;inset:auto 7% 15% 7%;height:30px;display:flex;align-items:center;gap:10px;padding:0 10px;background:#153a44d9;border-radius:8px;border:1px solid #66afa96b;color:#cceee6;pointer-events:none;opacity:0;visibility:hidden;transition:opacity .2s;overflow:hidden;font-size:10px;font-weight:800;letter-spacing:.04em}
.edu-live-trace span{position:relative;z-index:2;text-shadow:0 1px 4px #082126}
.edu-live-trace i{height:8px;width:18%;display:block;border-radius:20px;background:linear-gradient(90deg,#77d6c8,transparent);position:absolute;left:0;top:0;box-shadow:0 0 9px #77d6c8;animation:edu-motion var(--edu-motion-speed,4s) linear infinite alternate}
.edu-live-diagram[data-running="true"] .edu-live-trace{visibility:visible;opacity:1}
.edu-live-diagram[data-running="true"] svg{filter:drop-shadow(0 0 6px #64cabc24)}
@keyframes edu-motion{from{transform:translateX(0)}to{transform:translateX(440%)}}
.edu-compare-btn{border:1px solid #9ab6b0;border-radius:12px;background:#27414a;color:#d5e9e8;width:100%;min-height:46px;margin-top:11px;font-weight:800;cursor:pointer}
.edu-comparison{border-top:1px solid #6a8988;margin-top:14px;padding-top:12px;font-size:13px}.edu-comparison strong{color:#ecce95;font-size:12px}.edu-comparison p{margin:7px 0!important}.edu-comparison b{color:#f2dba6}
.edu-comparison[hidden]{display:none}
@media(prefers-reduced-motion:reduce){.edu-live-trace i{animation:none!important;left:65%}}