:root{
  --ipn:#6d1b46;--ipn-dark:#4d102f;--wine:#861d52;--rose:#b03069;--ink:#172033;--muted:#667085;
  --paper:#f5f6f9;--card:#fff;--line:#e3e6eb;--blue:#7087ad;--blue-soft:#eef3fa;--gold:#c7953d;
  --green:#28745b;--green-soft:#e9f6f0;--danger:#9b3434;--danger-soft:#fff1f1;
  --accent:#6d1b46;--accent-2:#b03069;--module-soft:#f8edf3;--shadow:0 22px 70px rgba(35,23,32,.12);
  --shadow-sm:0 10px 30px rgba(35,23,32,.08);--radius:26px;--radius-sm:16px;--shell:min(1180px,calc(100% - 32px));
}
body[data-module="2"]{--accent:#496b99;--accent-2:#6d1b46;--module-soft:#eef4fb}
body[data-module="3"]{--accent:#6d1b46;--accent-2:#b18a43;--module-soft:#f8f1e7}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;background:linear-gradient(180deg,#fff 0,#f6f7fa 720px,#f4f5f8 100%);color:var(--ink);font-family:"Segoe UI",Inter,Arial,Helvetica,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.shell{width:var(--shell);margin-inline:auto}
.skip-link{position:fixed;left:12px;top:-100px;z-index:10000;background:#fff;color:var(--ipn);padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);font-weight:800}.skip-link:focus{top:12px}
.scroll-meter{position:fixed;z-index:5000;top:0;left:0;right:0;height:3px;background:transparent;pointer-events:none}.scroll-meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ipn),var(--rose),var(--blue));box-shadow:0 0 15px rgba(109,27,70,.4)}

.topbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.93);backdrop-filter:blur(18px) saturate(150%);border-bottom:1px solid rgba(109,27,70,.1)}
.topbar-inner{height:78px;display:flex;align-items:center;gap:18px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}.brand-ipn{width:31px;height:54px;object-fit:contain}.brand-cecyt{width:61px;height:48px;object-fit:contain}.brand-divider{width:1px;height:38px;background:linear-gradient(#d9c4cf,#eee)}.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}.brand-text strong{font-size:1rem;color:var(--ipn);white-space:nowrap}.brand-text small{font-size:.74rem;color:var(--muted);white-space:nowrap}.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:4px}.desktop-nav a,.desktop-nav button{border:0;background:transparent;text-decoration:none;padding:10px 12px;border-radius:12px;font-weight:800;color:#475467}.desktop-nav a:hover,.desktop-nav button:hover{background:#f4ebf0;color:var(--ipn)}.icon-btn{display:none;margin-left:auto;width:44px;height:44px;border:0;border-radius:14px;background:var(--ipn);color:#fff;font-size:1.25rem;box-shadow:0 8px 22px rgba(109,27,70,.22)}

.hero{position:relative;overflow:hidden;background:
 radial-gradient(circle at 12% 16%,rgba(112,135,173,.14),transparent 30%),
 linear-gradient(135deg,#fff 0%,#fff 44%,#f8edf3 100%);border-bottom:1px solid #eadfe5}
.hero-network{position:absolute;inset:0;background-image:radial-gradient(circle at 20px 20px,rgba(109,27,70,.16) 1.4px,transparent 1.5px);background-size:34px 34px;mask-image:linear-gradient(90deg,transparent 0,rgba(0,0,0,.34) 38%,rgba(0,0,0,.6) 100%);opacity:.22}.hero-gear{position:absolute;border:10px dotted rgba(109,27,70,.09);border-radius:50%;pointer-events:none}.gear-one{width:250px;height:250px;right:-70px;bottom:-70px;animation:spin 26s linear infinite}.gear-two{width:120px;height:120px;right:180px;top:30px;border-width:7px;animation:spinReverse 19s linear infinite}.hero-grid{min-height:470px;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;padding:64px 0}.hero-copy{position:relative;z-index:2}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ipn);font-weight:900;font-size:.76rem;letter-spacing:.07em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:3px;border-radius:99px;background:linear-gradient(90deg,var(--ipn),var(--blue))}.hero h1{font-size:clamp(2.65rem,5.6vw,5rem);line-height:.94;letter-spacing:-.05em;margin:18px 0;max-width:800px}.hero-lead{max-width:720px;font-size:clamp(1rem,1.8vw,1.18rem);color:#4f5b6d;margin:0}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.btn{border:0;border-radius:14px;padding:13px 17px;font-weight:900;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 12px 30px rgba(109,27,70,.24)}.btn-soft{background:#fff;color:var(--ipn);border:1px solid #dbc6d1}.btn-reset{background:#2a2030;color:#fff;border:1px solid rgba(255,255,255,.1)}.btn-ghost{background:#eef0f4;color:#4d5968}.creator{margin-top:22px;color:#657083;font-size:.88rem}.creator strong{color:var(--ipn)}
.identity-card{position:relative;z-index:2;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(109,27,70,.12);background:#fff;min-height:330px}.identity-card>img{width:100%;height:330px;object-fit:cover;object-position:center;filter:saturate(.92) contrast(1.02)}.identity-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(31,17,27,.9) 100%)}.identity-overlay{position:absolute;z-index:2;left:24px;right:24px;bottom:22px;color:#fff}.identity-overlay>span{font-size:.72rem;font-weight:900;letter-spacing:.14em}.identity-overlay>strong{display:block;font-size:1.8rem;margin-top:2px}.identity-overlay small{display:block;margin-top:8px;color:#f0e8ed}.status-progress{height:8px;background:rgba(255,255,255,.25);border-radius:999px;overflow:hidden;margin-top:10px}.status-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#fff,#d8b0c5);border-radius:inherit;transition:width .55s cubic-bezier(.2,.7,.2,1)}

.how-panel{padding-top:24px}.how-title{display:flex;align-items:center;gap:12px;margin-bottom:12px}.how-title span{font-size:.72rem;font-weight:900;color:#fff;background:var(--ipn);padding:6px 9px;border-radius:999px}.how-title strong{color:#3c4655}.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.how-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:17px;display:flex;gap:12px;box-shadow:var(--shadow-sm)}.how-grid article>span{width:36px;height:36px;flex:0 0 36px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:900}.how-grid strong{display:block;color:var(--ipn)}.how-grid p{margin:3px 0 0;color:var(--muted);font-size:.85rem}

.course-section{padding:50px 0 66px}.course-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.course-toolbar h2,.section-head h2{font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.05;margin:7px 0 0}.toolbar-actions{display:flex;gap:8px;flex-wrap:wrap}.week-switch,.progress-switch{border:1px solid #dcc8d2;background:#fff;color:var(--ipn);font-weight:850;border-radius:13px;padding:10px 13px}.progress-switch{display:none}.focus-road{display:grid;grid-template-columns:auto 1fr auto 1fr auto 1fr auto;align-items:center;gap:8px;margin:0 0 16px;padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}.focus-road>span{display:flex;align-items:center;gap:7px;font-weight:800;color:#88909d;white-space:nowrap}.focus-road>span:first-child{color:var(--ipn)}.focus-road span::first-letter{font-weight:900}.focus-road i{height:2px;background:linear-gradient(90deg,#e3d6dd,#dde4ed)}
.lesson{background:#fff;border:1px solid #e3d9df;border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}.lesson-head{position:relative;padding:28px 30px 22px;background:linear-gradient(135deg,var(--module-soft),#fff);border-bottom:1px solid #ebe3e7}.lesson-head:before{content:"";position:absolute;right:20px;top:16px;width:125px;height:125px;background:url('../assets/logo_cecyt19.png') center/contain no-repeat;opacity:.035}.week-pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--ipn);color:#fff;font-weight:900;font-size:.72rem;letter-spacing:.06em}.lesson-head h3{font-size:clamp(1.55rem,4vw,2.4rem);line-height:1.08;margin:8px 0 10px;max-width:760px}.goal{margin:0;color:#586475;max-width:820px}.goal strong{color:var(--ipn)}.micro-note{display:inline-flex;gap:8px;margin-top:14px;background:#fff;border:1px solid #e6d8e0;border-radius:13px;padding:10px 12px;font-size:.9rem}.micro-note b{color:var(--ipn)}.lesson-body{padding:26px 30px 34px}
.stage-label{display:flex;gap:12px;align-items:center;margin:4px 0 12px}.stage-label>span{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--accent);color:#fff;font-weight:900;box-shadow:0 8px 18px rgba(109,27,70,.18)}.stage-label strong{display:block}.stage-label small{display:block;color:var(--muted)}
.task-shell{border:1px solid var(--line);border-radius:22px;padding:20px;margin-bottom:28px;background:#fff;box-shadow:0 6px 22px rgba(39,33,41,.04);position:relative;overflow:hidden}.task-shell:after{content:"";position:absolute;width:170px;height:170px;border-radius:50%;right:-85px;top:-90px;background:radial-gradient(circle,rgba(109,27,70,.08),transparent 70%);pointer-events:none}.task-shell.locked{background:#f7f7f8;border-style:dashed}.task-head{display:flex;justify-content:space-between;gap:15px;align-items:start;margin-bottom:14px}.task-head h4{margin:0;color:var(--ipn);font-size:1.25rem}.task-head p{margin:3px 0 0;color:var(--muted);font-size:.88rem}.task-status-chip{background:#f2edf0;color:var(--ipn);padding:5px 9px;border-radius:999px;font-size:.72rem;font-weight:900}.task-done{background:var(--green-soft);color:var(--green);border:1px solid #cbe7dc;border-radius:14px;padding:13px 14px;font-weight:900}.locked-msg{padding:16px;color:#707988;text-align:center}
.pre-video{display:grid;grid-template-columns:1fr .92fr;gap:14px;margin-bottom:14px}.read-first,.filename-card{border-radius:18px;padding:16px;border:1px solid #eadde4}.read-first{background:linear-gradient(180deg,#fff7fa,#fff)}.read-first .mini-label,.filename-card .mini-label{display:inline-flex;align-items:center;gap:7px;color:var(--ipn);font-weight:900;font-size:.76rem;letter-spacing:.04em;text-transform:uppercase}.read-first h5{font-size:1.05rem;margin:7px 0 8px;color:#293243}.read-first ol{margin:0;padding-left:22px}.read-first li{margin:6px 0;color:#505c6c}.read-first b{color:var(--ipn)}.filename-card{background:linear-gradient(135deg,#f9edf3,#fff)}.filename-card code{display:block;margin:8px 0 10px;background:#fff;border:1px dashed #c99eb2;border-radius:12px;padding:12px;color:#243044;font:800 .96rem/1.3 Consolas,monospace;overflow-wrap:anywhere}.filename-actions{display:flex;gap:8px;flex-wrap:wrap}.copy-name{border:0;background:var(--ipn);color:#fff;border-radius:11px;padding:10px 12px;font-weight:900}.filename-help{font-size:.79rem;color:#697386;margin-top:8px}.filename-help strong{color:var(--ipn)}
.local-video-card{border:1px solid #dedfe4;border-radius:18px;overflow:hidden;background:#101217;box-shadow:0 10px 26px rgba(11,12,16,.12)}.video-frame{position:relative;background:#0c0f14;min-height:220px;display:grid;place-items:center}.local-video-card video{display:block;width:100%;max-height:580px;background:#090b0f;aspect-ratio:16/9;object-fit:contain}.video-loader{position:absolute;inset:auto auto 14px 14px;background:rgba(12,15,20,.75);color:#fff;border-radius:999px;padding:7px 10px;font-size:.75rem;font-weight:800;backdrop-filter:blur(8px)}.video-meta{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:13px 14px;background:#fff}.video-meta strong{display:block;color:#2f3947}.video-meta small{display:block;color:var(--muted);margin-top:2px}.video-tools{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}.video-tools button,.video-tools a{border:1px solid #d9dce2;background:#f7f8fa;color:#4b5665;text-decoration:none;border-radius:10px;padding:8px 9px;font-size:.78rem;font-weight:850}.video-tools button:hover,.video-tools a:hover{background:#f0e6eb;color:var(--ipn)}.video-missing{padding:12px 14px;background:#fff2f2;color:#7e3030;border-top:1px solid #f1cccc;font-size:.86rem}.video-missing code{display:block;margin-top:6px;background:#fff;border-radius:8px;padding:7px;overflow-wrap:anywhere}.watch-btn{width:100%;margin-top:12px;border:0;border-radius:14px;padding:13px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:900;box-shadow:0 10px 22px rgba(109,27,70,.18)}.watch-btn.done{background:#2c745b}.watch-hint{text-align:center;color:#6e7785;font-size:.8rem;margin:7px 0 0}
.stepper{margin-top:14px;border:1px solid #e2e4e9;border-radius:17px;padding:18px;background:#fafbfd}.stepper-top{display:flex;justify-content:space-between;align-items:center;gap:10px}.step-counter{font-size:.74rem;color:var(--ipn);font-weight:900;letter-spacing:.08em}.step-dots{display:flex;gap:5px}.step-dots i{width:8px;height:8px;border-radius:50%;background:#d8dce3}.step-dots i.on{background:var(--accent);transform:scale(1.12)}.step-text{font-size:1.12rem;line-height:1.45;margin:18px 0 10px;font-weight:760;color:#263142}.step-text strong{color:var(--ipn)}.step-help{font-size:.82rem;color:#6b7584;background:#fff;border-left:3px solid var(--blue);padding:9px 10px;border-radius:0 9px 9px 0}.step-actions{display:flex;justify-content:space-between;gap:10px;margin-top:17px}.step-actions button,.finish-task{border:0;border-radius:12px;padding:11px 14px;font-weight:900}.step-actions button{background:#eaedf1;color:#4f5967}.step-actions button.next{background:var(--accent);color:#fff}.step-actions button:disabled{opacity:.4}.finish-task{width:100%;margin-top:12px;background:#2d765d;color:#fff;box-shadow:0 9px 20px rgba(45,118,93,.2)}
.check-zone{margin-top:28px;border:2px solid #dfd1d9;border-radius:22px;padding:22px;background:linear-gradient(180deg,#fff,#fbf7f9)}.check-zone h4{margin:0;color:var(--ipn);font-size:1.35rem}.check-zone>p{margin:4px 0 18px;color:var(--muted)}.quiz-q{padding:16px 0;border-top:1px solid #e8e4e7}.quiz-q:first-of-type{border-top:0}.quiz-q>strong{display:block;margin-bottom:10px}.quiz-options{display:grid;gap:8px}.quiz-options label{display:flex;gap:9px;align-items:flex-start;border:1px solid #e1e3e7;border-radius:12px;padding:11px 12px;background:#fff;cursor:pointer}.quiz-options label.selected{border-color:var(--accent);box-shadow:0 0 0 2px rgba(109,27,70,.08)}.quiz-options input{margin-top:4px}.quiz-btn{width:100%;border:0;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;padding:13px;font-weight:900;margin-top:10px}.quiz-result{margin-top:12px;border-radius:12px;padding:12px 13px;font-weight:800}.quiz-result.no{background:var(--danger-soft);color:var(--danger)}.quiz-result.ok{background:var(--green-soft);color:var(--green)}.wrong-list{margin:8px 0 0;padding-left:18px;font-size:.85rem;font-weight:600}.simple-details{margin-top:24px;border-top:1px solid #ece7ea;padding-top:16px}.simple-details summary{cursor:pointer;color:var(--ipn);font-weight:850}.simple-details>div{padding:12px 0;color:#596371;font-size:.9rem}.simple-details ul{margin:6px 0 12px;padding-left:20px}

.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.lab-section{padding:52px 0;background:#eef1f5;border-block:1px solid #dde2e8}.offline-chip{background:#e5f4ed;color:#2d6a54;border:1px solid #c5e5d8;border-radius:999px;padding:7px 11px;font-size:.78rem;font-weight:900}.lab-note{background:#fff;border-left:4px solid var(--ipn);padding:13px 15px;border-radius:0 12px 12px 0;color:#596472;margin-bottom:14px}.lab-workspace{display:grid;grid-template-columns:1.12fr .88fr;gap:16px}.lab-editor,.lab-output{background:#fff;border-radius:20px;box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid #dfe3e8}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid #e6e9ed}.panel-title div{display:flex;flex-direction:column}.panel-title small{color:var(--muted)}.panel-title select{max-width:220px;border:1px solid #d9dde3;border-radius:10px;padding:8px}.lab-editor textarea{display:block;width:100%;min-height:410px;border:0;resize:vertical;padding:16px;background:#171b22;color:#eef1f7;font:14px/1.55 Consolas,monospace;outline:0}.lab-actions{padding:12px 14px;display:flex;gap:8px;flex-wrap:wrap}.lab-output pre{margin:0;min-height:300px;max-height:410px;overflow:auto;padding:16px;background:#0e1218;color:#d8f5e7;font:14px/1.55 Consolas,monospace;white-space:pre-wrap}.syntax-help{padding:14px;display:grid;gap:6px}.syntax-help strong{color:var(--ipn)}.syntax-help code{background:#f2f3f5;border-radius:8px;padding:6px 8px;color:#434b56}
.resources{padding:52px 0 62px}.resource-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.resource-grid a{display:flex;flex-direction:column;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow-sm);transition:transform .2s ease,border-color .2s ease}.resource-grid a:hover{transform:translateY(-3px);border-color:#d1b6c2}.resource-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--module-soft);color:var(--ipn);font-weight:950;font-size:1.1rem;margin-bottom:12px}.resource-grid strong{color:#303946}.resource-grid small{color:var(--muted)}
.author-band{position:relative;overflow:hidden;background:linear-gradient(135deg,#211721,#39212f 55%,#241923);color:#fff;min-height:280px}.author-network{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:38px 38px;opacity:.6}.author-band:before,.author-band:after{content:"";position:absolute;border:8px dotted rgba(255,255,255,.05);border-radius:50%}.author-band:before{width:240px;height:240px;left:-80px;bottom:-90px;animation:spin 32s linear infinite}.author-band:after{width:150px;height:150px;right:20%;top:-80px;animation:spinReverse 26s linear infinite}.author-inner{position:relative;min-height:280px;display:flex;align-items:center}.author-copy{position:relative;z-index:2;max-width:760px;padding:46px 0}.author-copy>span{font-size:.72rem;letter-spacing:.11em;color:#d8c3ce;font-weight:900}.author-copy h2{font-size:clamp(2rem,4vw,3.4rem);margin:10px 0;line-height:1}.author-copy p{margin:0;color:#eadfe5}.author-copy p strong{color:#fff}.author-copy small{display:block;margin-top:10px;color:#bfb4bb}.author-watermark{position:absolute;right:0;bottom:0;height:255px;width:auto;opacity:.25;filter:saturate(.65) contrast(.95);mix-blend-mode:screen;pointer-events:none}
footer{background:#171217;color:#ece7ea;padding:26px 0}.footer-grid{display:grid;grid-template-columns:1.25fr 1fr auto;gap:24px;align-items:center}.footer-school{display:flex;align-items:center;gap:10px}.footer-school>img:nth-child(1){width:28px;height:50px;object-fit:contain;filter:brightness(0) invert(1);opacity:.9}.footer-school>img:nth-child(2){width:44px;height:42px;object-fit:contain;filter:grayscale(1) brightness(1.7);opacity:.85}.footer-school div,.footer-author{display:flex;flex-direction:column}.footer-school span,.footer-author span{font-size:.76rem;color:#bfb5bb}.footer-actions button{border:1px solid #55444f;background:#2b2128;color:#eee;border-radius:10px;padding:9px 10px;font-size:.76rem}

.drawer{width:min(700px,calc(100% - 24px));max-height:86vh;border:0;border-radius:24px;padding:0;box-shadow:0 25px 90px rgba(12,7,11,.35);overflow:auto}.drawer::backdrop{background:rgba(22,14,20,.55);backdrop-filter:blur(4px)}.dialog-bar{position:sticky;top:0;background:#fff;z-index:2;padding:20px;display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid #ece7ea}.dialog-bar h2{margin:4px 0 0}.dialog-bar p{margin:4px 0 0;color:var(--muted);font-size:.84rem}.dialog-close{border:0;background:#f0edf0;width:40px;height:40px;border-radius:50%;font-size:1.5rem;color:var(--ipn)}.week-list{padding:14px}.week-list button{width:100%;border:1px solid #e0e3e7;background:#fff;border-radius:14px;padding:13px 14px;display:flex;justify-content:space-between;align-items:center;text-align:left;margin-bottom:8px}.week-list button:hover{border-color:#cdb3c0}.week-list button.current{background:var(--module-soft);border-color:#cdb3c0}.week-list button strong{display:block;color:var(--ipn)}.week-list button small{display:block;color:var(--muted)}.locked-summary{margin:0 14px 18px;padding:12px;border-radius:12px;background:#f3f4f6;color:#6b7280;text-align:center}.progress-card{padding:18px}.progress-big{display:flex;align-items:center;gap:16px;padding:16px;border-radius:18px;background:var(--module-soft)}.progress-big strong{font-size:2rem;color:var(--ipn)}.progress-list{margin-top:14px;display:grid;gap:8px}.progress-row{display:flex;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid #eceff2}.progress-row span:last-child{font-weight:850;color:var(--ipn)}
.complete-toast{position:fixed;z-index:5000;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;border:1px solid #e3d5dc;border-radius:24px;box-shadow:0 24px 100px rgba(23,12,20,.35);padding:28px 34px;text-align:center;min-width:min(360px,calc(100% - 32px))}.complete-toast>div{margin:auto;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#2f765e;color:#fff;font-size:1.65rem;font-weight:900}.complete-toast strong,.complete-toast span{display:block}.complete-toast strong{color:var(--ipn);font-size:1.3rem;margin-top:12px}.complete-toast span{color:var(--muted);margin-top:4px}.to-top{position:fixed;right:18px;bottom:18px;z-index:900;width:50px;height:50px;border:0;border-radius:50%;background:var(--ipn);color:#fff;font-size:1.35rem;box-shadow:0 12px 28px rgba(109,27,70,.32);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.to-top.show{opacity:1;transform:none;pointer-events:auto}.to-top:after{content:"";position:absolute;inset:-6px;border:2px solid rgba(109,27,70,.22);border-radius:50%;animation:pulse 1.8s infinite}.noscript{position:fixed;inset:auto 16px 16px;z-index:9999;background:#7d263f;color:#fff;padding:12px;border-radius:12px;text-align:center}

[data-reveal]{opacity:1;transform:none}[data-reveal].is-visible{opacity:1;transform:none}.pop{animation:pop .28s ease}.shake{animation:shake .3s ease}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes spinReverse{to{transform:rotate(-360deg)}}@keyframes pulse{0%{transform:scale(.86);opacity:1}100%{transform:scale(1.35);opacity:0}}@keyframes pop{0%{transform:scale(.98)}60%{transform:scale(1.02)}100%{transform:scale(1)}}@keyframes shake{20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}[data-reveal]{opacity:1!important;transform:none!important}}
@media(max-width:960px){
  :root{--shell:min(100% - 24px,820px)}.desktop-nav{display:none}.icon-btn{display:block}.brand-text small{display:none}.hero-grid{grid-template-columns:1fr;gap:24px;padding:46px 0}.identity-card{max-width:650px}.how-grid{grid-template-columns:1fr 1fr}.pre-video{grid-template-columns:1fr}.lab-workspace{grid-template-columns:1fr}.resource-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.author-watermark{opacity:.18;right:-12px}.author-copy{padding-right:160px}.progress-switch{display:inline-block}
}
@media(max-width:640px){
  :root{--shell:calc(100% - 20px);--radius:20px}.topbar-inner{height:68px}.brand-ipn{width:25px;height:44px}.brand-cecyt{width:46px;height:40px}.brand-text strong{font-size:.84rem}.hero-grid{padding:34px 0}.hero h1{font-size:2.9rem}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn:first-child{grid-column:1/-1}.identity-card{min-height:260px}.identity-card>img{height:260px}.identity-overlay{left:18px;right:18px;bottom:16px}.how-grid{grid-template-columns:1fr}.course-section{padding:38px 0 50px}.course-toolbar{align-items:center}.course-toolbar h2{font-size:2rem}.toolbar-actions{display:grid;grid-template-columns:1fr 1fr}.week-switch,.progress-switch{font-size:.78rem;padding:9px}.focus-road{grid-template-columns:repeat(4,1fr);padding:9px}.focus-road i{display:none}.focus-road>span{display:grid;place-items:center;text-align:center;gap:2px;font-size:.8rem}.focus-road b{display:block;font-size:.68rem}.lesson{border-radius:20px}.lesson-head{padding:21px 18px 17px}.lesson-body{padding:18px 14px 24px}.lesson-head h3{font-size:1.65rem}.micro-note{display:flex}.task-shell{padding:14px;border-radius:17px}.task-head{display:block}.task-status-chip{display:inline-block;margin-top:8px}.read-first,.filename-card{padding:14px}.video-frame{min-height:180px}.local-video-card video{max-height:360px}.video-meta{display:block}.video-tools{margin-top:9px;justify-content:flex-start}.video-tools button,.video-tools a{flex:1 1 auto;text-align:center}.stepper{padding:14px}.step-text{font-size:1.08rem}.step-actions{display:grid;grid-template-columns:1fr 1fr}.step-actions button{padding:11px 8px;font-size:.84rem}.resource-grid{grid-template-columns:1fr}.lab-section{padding:38px 0}.lab-editor textarea{min-height:330px}.panel-title{align-items:flex-start}.panel-title select{max-width:150px;font-size:.78rem}.author-inner{min-height:250px}.author-copy{padding:34px 100px 34px 0}.author-copy h2{font-size:2.1rem}.author-watermark{height:210px;right:-56px;opacity:.16}.footer-actions button{width:100%}.drawer{border-radius:18px}.dialog-bar h2{font-size:1.35rem}
}
@media(max-width:400px){.hero h1{font-size:2.5rem}.brand-text{display:none}.hero-actions{grid-template-columns:1fr}.hero-actions .btn:first-child{grid-column:auto}.toolbar-actions{grid-template-columns:1fr}.author-copy{padding-right:60px}.author-watermark{right:-75px}}

.render-fallback{margin:24px;padding:24px;border:1px solid #ead9e2;border-radius:18px;background:#fff7fa;color:#3b2531;display:grid;gap:10px;text-align:center}.render-fallback strong{color:var(--ipn);font-size:1.15rem}.render-fallback span{color:var(--muted)}.render-fallback button{justify-self:center;border:0;border-radius:12px;background:var(--ipn);color:#fff;font-weight:900;padding:10px 16px;cursor:pointer}