.course-section{padding:72px 0 88px}.course-intro{max-width:780px;margin-bottom:34px}.course-intro h2{font-size:clamp(32px,5vw,56px);margin:12px 0 16px}.course-intro p{color:var(--muted);font-size:18px;line-height:1.65}.course-group{margin:38px 0 48px}.course-group-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 18px}.course-group-title>a{font-size:14px;color:var(--muted)}.course-badge{display:inline-block;border-radius:7px;padding:5px 10px;font-weight:750;font-size:12px;letter-spacing:.07em;color:white;background:#6441dd}.badge-mer{background:#167f75}.badge-pi2{background:#9927a4}.course-list{display:grid;gap:14px}.course-card{padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--card);transition:border-color .2s,transform .2s}.course-card:hover{border-color:#8262ed;transform:translateY(-2px)}.course-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.course-card h3{font-size:20px;line-height:1.35;letter-spacing:-.02em}.course-card time,.course-date{font-size:13px;color:var(--muted);white-space:nowrap}.course-card>p{color:var(--muted);margin:12px 0 16px;max-width:780px;line-height:1.65}.course-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}.course-tags span{font-size:11px;font-weight:600;padding:4px 8px;background:var(--bg-2);border-radius:6px;color:var(--ink-2)}.course-statement{font-size:13px;font-weight:650;color:#5440bc}.course-path{display:block;color:var(--muted);font-size:12px;overflow-wrap:anywhere;margin:12px 0 16px}.course-open{display:inline-flex;align-items:center;gap:22px;border-radius:30px;padding:10px 17px;background:#6539e8;color:white;font-size:13px;font-weight:650}.course-open:hover{background:#5128ce}.course-extras{padding:40px 0 60px;border-top:1px solid var(--line)}.course-extras h2{font-size:30px}.course-extras>p{margin:12px 0 25px;color:var(--muted)}.course-extra-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.course-extra-grid a{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:12px;padding:22px;background:var(--card);font-size:15px}.course-extra-grid a:hover{border-color:#8262ed}.course-subject-hero{padding:72px 0 42px;border-bottom:1px solid var(--line)}.course-subject-hero h1{font-size:clamp(56px,10vw,104px);margin:18px 0 20px}.course-subject-hero .lead{margin:0;text-align:left;max-width:730px;font-size:20px}.course-subject-hero .ctas{justify-content:flex-start;margin-top:24px}.course-footer{padding:35px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.course-footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.course-shell{--bg:#f7f8fc;--bg-2:#eef0f7;--card:#fff;--line:#d7dce8;--ink:#19243a;--ink-2:#34415d;--muted:#63718a}.course-shell[data-theme=dark]{--bg:#0b1222;--bg-2:#1b2740;--card:#141e30;--line:#2d3c58;--ink:#e2e8f5;--ink-2:#c1cde0;--muted:#9caec9}.course-shell[data-theme=dark] .course-statement,html[data-theme=dark] .course-statement{color:#9bc7ff}.course-shell .eyebrow{color:#8061e8}.course-shell[data-theme=dark] .eyebrow{color:#b59bff}.course-shell .grad{background:linear-gradient(100deg,#8156ee,#3b9ca6);background-clip:text;-webkit-background-clip:text}.lesson-hero{padding:62px 0 42px}.lesson-hero h1{font-size:clamp(36px,6vw,68px);max-width:950px;margin:20px 0}.lesson-hero .lead{max-width:780px;text-align:left;margin:0;font-size:20px}.lesson-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.lesson-meta span{padding:6px 10px;font-size:12px;border:1px solid var(--line);border-radius:7px;color:var(--muted)}.lesson-layout{max-width:940px;margin:auto;padding:0 22px 80px}.lesson-block{padding:36px 0;border-top:1px solid var(--line);scroll-margin-top:125px}.lesson-block h2{font-size:clamp(26px,4vw,36px);margin-bottom:20px}.lesson-block h3{font-size:21px;margin:26px 0 13px}.lesson-block p,.lesson-block li{line-height:1.8;color:var(--ink-2)}.lesson-block p+p{margin-top:14px}.lesson-block ul,.lesson-block ol{padding-left:24px}.lesson-block li{margin:8px 0}.lesson-block pre{position:relative;white-space:pre-wrap;overflow-wrap:anywhere;padding:24px;border-radius:14px;background:#0c1526;color:#d6e7f6;font:13px/1.7 var(--mono);margin:18px 0}.lesson-block code{font-family:var(--mono);font-size:.87em}.lesson-block a:not(.course-open){color:#5a46b6;text-decoration:underline;text-underline-offset:3px}.course-shell[data-theme=dark] .lesson-block a:not(.course-open){color:#a9cdff}.lesson-table-wrap{overflow-x:auto}.lesson-table{width:100%;border-collapse:collapse;font-size:14px}.lesson-table th,.lesson-table td{text-align:left;padding:14px 12px;border-bottom:1px solid var(--line);line-height:1.65}.lesson-table th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}.lesson-note{padding:20px 24px;border-left:3px solid #8c68ed;border-radius:0 12px 12px 0;background:var(--bg-2);margin:20px 0}.lesson-check{display:flex;align-items:flex-start;gap:12px;margin:15px 0;line-height:1.6;color:var(--ink-2)}.lesson-check input{width:18px;height:18px;margin-top:4px;accent-color:#7546e7;flex-shrink:0}.lesson-progress{font-size:13px;color:var(--muted);margin-top:16px}.lesson-quiz{padding:24px;border-radius:16px;background:var(--card);border:1px solid var(--line);margin:16px 0}.lesson-quiz legend{font-weight:650;padding:0 6px}.lesson-quiz label{display:block;line-height:1.6;margin:10px 0;color:var(--ink-2)}.lesson-quiz button,.demo-control{padding:10px 16px;border-radius:9px;background:#643be0;color:white;font-weight:650;font-size:14px}.quiz-feedback{min-height:28px;margin-top:14px!important;font-weight:600}.lesson-demo{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}.lesson-demo label{display:block;margin:12px 0}.lesson-demo input[type=range]{width:min(100%,400px);accent-color:#8052ed}.demo-oled{font:22px/1.7 var(--mono);padding:24px;background:#071421;color:#7bdfff;border:8px solid #233449;border-radius:15px;max-width:390px;margin:22px 0}.demo-oled small{display:block;font-size:11px;color:#7993aa}.lesson-nav{display:flex;justify-content:space-between;gap:20px;padding:25px 0;border-top:1px solid var(--line);font-size:14px}.lesson-nav a{color:var(--ink)!important}.lesson-download{display:inline-flex;gap:15px;align-items:center;margin:12px 0}.pin-search{width:100%;max-width:400px;padding:12px 15px;margin-bottom:16px;border:1px solid var(--line);border-radius:9px;background:var(--card);color:var(--ink);font:inherit}.lesson-block details{border:1px solid var(--line);padding:18px 22px;margin:12px 0;border-radius:12px}.lesson-block summary{cursor:pointer;font-weight:650}.lesson-block details p{margin-top:14px}.lesson-block .sources{font-size:14px}.copy-code{display:block;margin-top:8px;padding:7px 12px;background:var(--bg-2);color:var(--ink);font-size:12px;border:1px solid var(--line);border-radius:6px}.course-home-cta{margin-top:20px}@media(min-width:1050px){.course-card{padding:30px 34px}.course-list{gap:16px}}@media(max-width:600px){.course-card{padding:22px}.course-card-top{flex-direction:column;gap:10px}.course-card h3{font-size:18px}.course-group-title>a{font-size:12px}.course-section{padding:45px 0}.lesson-meta{gap:6px}.lesson-block pre{padding:16px;font-size:12px}.lesson-hero{padding-top:36px}.course-subject-hero{padding-top:42px}}


/* ESP-NOW: extensión de la plantilla de prácticas, aislada a esta entrega. */
.en-hero-actions{display:flex;flex-wrap:wrap;gap:20px;align-items:center;margin-top:28px}.en-secondary{font-size:14px;font-weight:650;color:var(--ink-2)}.en-secondary:hover{text-decoration:underline;text-underline-offset:4px}.en-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:26px 0}.en-facts>div{padding:18px 20px;background:var(--card);border:1px solid var(--line);border-radius:12px}.en-facts b{display:block;font-size:17px;letter-spacing:-.02em}.en-facts span{display:block;font-size:12px;color:var(--muted);margin-top:5px}.en-concepts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:12px}.en-concepts article{min-width:0}.en-concepts h3{font-size:19px;line-height:1.3}.en-concepts p{font-size:14px}.en-topologies{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.en-panel{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--card)}.en-kicker{font-size:10px;letter-spacing:.12em;font-weight:750;color:#6850bd}.course-shell[data-theme=dark] .en-kicker{color:#b59bff}.en-panel h3{margin-top:15px}.en-panel p{font-size:14px}.en-figure{margin:28px 0 0;padding:14px;border:1px solid var(--line);background:var(--card);border-radius:16px}.en-figure img{width:100%;height:auto;border-radius:9px}.en-figure figcaption{padding:14px 8px 4px;color:var(--muted);font-size:12px;line-height:1.7}.en-figure figcaption a{white-space:normal}.en-downloads{display:flex;gap:14px;flex-wrap:wrap;margin-top:18px}.en-downloads .lesson-download{margin:0 0 12px}.en-setup{margin-top:24px}.en-setup li{padding-left:6px;margin-bottom:14px}.espnow-demo{--en-accent:#7851d6;--en-active:#087c75;margin:26px 0 16px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--card)}.course-shell[data-theme=dark] .espnow-demo{--en-accent:#b59bff;--en-active:#69d9cb}.en-lab-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line);background:var(--bg)}.en-segmented{display:flex;gap:3px;padding:4px;background:var(--bg-2);border:1px solid var(--line);border-radius:9px}.en-segmented button{border:0;border-radius:6px;padding:9px 12px;min-height:40px;font:650 12px/1.4 var(--font);color:var(--muted);background:transparent}.en-segmented button.selected{background:var(--card);color:var(--ink);box-shadow:0 2px 5px #0001}.en-demo-label{font:10px/1.6 var(--mono);color:var(--muted);letter-spacing:.07em}.en-lab-layout{display:grid;grid-template-columns:1.5fr 1fr}.en-network{min-width:0;padding:16px 20px 24px;background-image:radial-gradient(#7183a525 1px,transparent 1px);background-size:20px 20px}.en-network svg{display:block;width:100%;height:auto}.en-network p{font-size:12px!important;line-height:1.7!important;color:var(--muted)!important}.en-lab-controls{min-width:0;border-left:1px solid var(--line);padding:24px}.en-lab-controls label{display:block;font-size:12px;color:var(--ink-2);margin:17px 0 7px}.en-lab-controls select{width:100%;min-height:44px;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:13px/1.5 var(--font)}.en-channels{display:grid;grid-template-columns:1fr 1fr;gap:12px}.en-send{width:100%;min-height:46px;margin-top:23px}.en-status{font-size:11px!important;min-height:40px;margin:12px 0 0;line-height:1.7!important;color:var(--muted)!important}.en-metrics{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);padding-top:16px;margin-top:14px}.en-metrics b{display:block;font-size:26px;line-height:1.2;letter-spacing:-.03em}.en-metrics span{font-size:11px;color:var(--muted)}.en-console-head{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#1b2740;color:#c1cde0;padding:13px 18px;font:10px/1.5 var(--mono)}.en-console-head button{background:none;border:0;color:#c7b6ff;font:12px/1.5 var(--font);padding:5px}.lesson-block .en-console{background:#0c1526;border-radius:0;color:#c1dbd1;padding:18px;margin:0;height:155px;overflow:auto;white-space:pre-wrap;font:11px/1.9 var(--mono);overflow-wrap:anywhere}.en-caption{font-size:12px!important;color:var(--muted)!important}.espnow-demo :focus-visible{outline:3px solid var(--en-active);outline-offset:3px}.espnow-demo button:disabled,.espnow-demo select:disabled{opacity:.6;cursor:wait}.espnow-demo .net-node rect{fill:var(--card);stroke:var(--line);stroke-width:2}.espnow-demo .net-node text{fill:var(--ink);font:600 16px system-ui;text-anchor:middle}.espnow-demo .net-node .node-sub{fill:var(--muted);font:10px monospace}.espnow-demo .net-node.receiver rect{stroke:var(--en-accent)}.espnow-demo .net-node.active rect{stroke:var(--en-active);stroke-width:3}.espnow-demo .net-line{stroke:var(--line);stroke-width:2;stroke-dasharray:7 7}.espnow-demo .net-line.active{stroke:var(--en-active);stroke-width:3}.espnow-demo .net-line.failed{stroke:#d66f58}.espnow-demo .net-packet{fill:var(--en-accent)}
@media(max-width:760px){.en-facts,.en-concepts,.en-topologies{grid-template-columns:1fr}.en-facts{gap:10px}.en-facts>div{padding:15px 18px}.en-concepts{gap:0}.en-concepts article+article{border-top:1px solid var(--line);padding-top:4px}.en-panel{padding:22px}.en-lab-layout{grid-template-columns:1fr}.en-lab-controls{border-left:0;border-top:1px solid var(--line);padding:22px}.en-network{padding:12px 16px 22px}.en-lab-toolbar{flex-direction:column;align-items:flex-start;gap:10px}.en-status{min-height:0}.en-hero-actions{gap:15px}.en-figure{padding:9px}.en-downloads{gap:8px}.en-console-head{padding:12px;gap:8px;font-size:9px}}
@media(prefers-reduced-motion:reduce){.espnow-demo *{transition:none!important;animation:none!important}}

/* Anteproyectos básicos: misma plantilla de entregas. */
.ap-actions{margin-top:26px}.ap-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px;margin:28px 0 36px}.lesson-block .ap-index a{display:flex;align-items:center;gap:12px;padding:13px 14px;background:var(--card);border:1px solid var(--line);border-radius:9px;text-decoration:none;color:var(--ink-2);font-size:13px;line-height:1.5}.ap-index a:hover{border-color:#9276db}.ap-index a span{font:12px var(--mono);color:var(--muted);flex-shrink:0}.lesson-block .ap-list{list-style:decimal;padding-left:26px;margin:0}.lesson-block .ap-card{margin:0 0 24px;padding:28px;background:var(--card);border:1px solid var(--line);border-radius:16px;scroll-margin-top:130px;min-width:0}.ap-card::marker{color:var(--muted);font:12px var(--mono)}.ap-card-head{display:flex;gap:20px;align-items:flex-start;padding-bottom:23px;border-bottom:1px solid var(--line)}.ap-number{font:600 24px/1.2 var(--mono);color:#8262d1;letter-spacing:-.06em;padding-top:5px}.course-shell[data-theme=dark] .ap-number{color:#b59bff}.ap-category{font-size:10px;font-weight:750;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.lesson-block .ap-card h3{margin:8px 0 10px;font-size:clamp(21px,3vw,27px);line-height:1.2;letter-spacing:-.025em}.lesson-block .ap-original{font-size:12px;line-height:1.6;color:var(--muted)}.ap-original span{white-space:normal}.ap-fields{margin:22px 0 10px}.ap-fields>div{display:grid;grid-template-columns:140px minmax(0,1fr);gap:20px;padding:12px 0}.ap-fields dt{font-size:12px;font-weight:750;line-height:1.8;color:var(--ink)}.ap-fields dd{margin:0;color:var(--ink-2);font-size:14px;line-height:1.8;overflow-wrap:break-word}.lesson-block .ap-top{display:inline-block;margin-top:12px;font-size:11px;text-decoration:none}.ap-top:hover{text-decoration:underline}.ap-index a:focus-visible,.ap-top:focus-visible{outline:3px solid #8262d1;outline-offset:4px}@media(max-width:650px){.ap-index{grid-template-columns:1fr;gap:7px}.lesson-block .ap-list{padding-left:20px}.lesson-block .ap-card{padding:20px 18px;margin-bottom:18px}.ap-card-head{gap:13px}.ap-number{font-size:20px}.ap-fields>div{grid-template-columns:1fr;gap:4px;padding:10px 0}.ap-fields dt{font-size:11px}.ap-fields dd{font-size:14px}.lesson-block .ap-original{font-size:11px}}


/* Explorador interactivo: componentes de la entrega, con los tokens del sitio. */
.ap-explorer-tools{padding:22px;background:var(--card);border:1px solid var(--line);border-radius:16px;margin:26px 0 20px}.ap-filter-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:16px}.ap-filter-grid label{display:block;font-size:12px;font-weight:650;color:var(--muted);margin-bottom:7px}.ap-filter-grid input,.ap-filter-grid select{width:100%;min-height:46px;border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:var(--bg);color:var(--ink);font:14px var(--font)}.ap-filter-foot{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:16px}.ap-saved-toggle{display:flex;align-items:center;gap:8px;color:var(--ink-2);font-size:13px}.ap-saved-toggle input,.ap-compare-label input{width:17px;height:17px;accent-color:#8055e0;flex-shrink:0}.ap-filter-foot button,.ap-view-controls button,.ap-card-tools button,.ap-demo-buttons button,.ap-compare-head button{padding:9px 12px;border:1px solid var(--line);border-radius:8px;font:600 12px/1.5 var(--font);background:var(--bg-2);color:var(--ink);min-height:40px}.ap-filter-foot button:hover,.ap-view-controls button:hover,.ap-card-tools button:hover{border-color:#9276db}.ap-filter-foot [role=status]{font-size:12px;color:var(--muted);margin-left:auto}.ap-view-controls{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.ap-card-tools{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:18px}.ap-card-tools button[aria-pressed=true]{border-color:#9276db;color:#7050b5;background:var(--bg-2)}.course-shell[data-theme=dark] .ap-card-tools button[aria-pressed=true]{color:#c6b4ff}.ap-compare-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.ap-enhanced .ap-card{box-shadow:0 6px 24px -20px #0005}.ap-enhanced .ap-card:target{border-color:#9672ea;box-shadow:0 0 0 3px #8a60d522}.ap-enhanced .ap-card-head{border:0;padding-bottom:0}.lesson-block .ap-card details{margin:20px 0 0;padding:0;border:0;border-top:1px solid var(--line);border-radius:0}.ap-card summary{padding:18px 0 0;font-size:13px;color:var(--ink-2)}.ap-card .ap-fields{margin:16px 0}.ap-details-content{padding-top:2px}.ap-intro-objective{font-size:14px!important;margin-top:20px!important}.ap-mini-demo{margin-top:20px;border:1px solid var(--line);border-radius:12px;padding:20px;background:var(--bg)}.ap-demo-title{display:flex;justify-content:space-between;gap:12px;align-items:center}.ap-demo-title b{font-size:13px}.ap-demo-title span{font-size:9px;letter-spacing:.08em;color:var(--muted)}.ap-demo-stages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:18px 0}.ap-demo-stages>span{display:flex;flex-direction:column;gap:6px;padding:13px 10px;border:1px solid var(--line);border-radius:8px;font-size:11px;color:var(--muted);line-height:1.5}.ap-demo-stages>span b{font:11px var(--mono)}.ap-demo-stages>span.active{border-color:#9875e6;color:var(--ink);background:var(--bg-2);box-shadow:inset 0 3px #9875e6}.lesson-block .ap-demo-result{font-size:13px;line-height:1.75;min-height:46px}.ap-demo-buttons{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}.ap-demo-buttons button:first-child{background:#6539e8;border-color:transparent;color:#fff}.ap-related{display:flex;flex-wrap:wrap;gap:8px;padding-top:18px;margin-top:18px;border-top:1px solid var(--line)}.ap-related>span{width:100%;color:var(--muted);font-size:11px}.lesson-block .ap-related a{font-size:12px;padding:6px 9px;border-radius:6px;background:var(--bg-2);text-decoration:none}.ap-compare-panel{margin:28px 0 36px;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--card)}.ap-compare-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.ap-compare-head h3{font-size:22px;margin:0}.lesson-block .ap-compare-panel p{font-size:13px;margin-top:14px}.ap-compare-panel table{min-width:640px;table-layout:fixed}.ap-compare-panel caption{text-align:left;color:var(--muted);font-size:12px;padding:18px 0}.ap-compare-panel th:first-child{width:105px}.ap-compare-panel td{vertical-align:top;overflow-wrap:break-word;font-size:12px}.ap-compare-panel th{vertical-align:top}.ap-empty{padding:25px;border:1px dashed var(--line);border-radius:12px;font-size:14px}.ap-index [hidden],.ap-card[hidden],[data-ap-explorer] [hidden]{display:none!important}.ap-explorer-tools :focus-visible,.ap-card :focus-visible,.ap-compare-panel :focus-visible{outline:3px solid #9875e6;outline-offset:3px}@media(max-width:650px){.ap-filter-grid{grid-template-columns:1fr}.ap-explorer-tools,.ap-compare-panel{padding:18px}.ap-filter-foot [role=status]{width:100%;margin-left:0}.ap-mini-demo{padding:15px}.ap-demo-title{align-items:flex-start;flex-direction:column;gap:4px}.ap-demo-stages{gap:5px}.ap-demo-stages>span{padding:10px 7px;font-size:10px}}


/* Diseño común 2026: conserva la estructura y los componentes de cada entrega. */
.course-shell{--bg:#f7f8fc;--bg-2:#eef0f8;--card:#fff;--line:#dce1ed;--ink:#17243a;--ink-2:#43516c;--muted:#62728b;--pro-accent:#6942d5;--pro-soft:#f0ebfc;--pro-shadow:0 18px 50px -30px #38497435}
.course-shell[data-theme=dark]{--bg:#0b1020;--bg-2:#11192d;--card:#141f34;--line:#293750;--ink:#edf2fc;--ink-2:#bfcee2;--muted:#96a9c5;--pro-accent:#b49aff;--pro-soft:#251f40;--pro-shadow:0 24px 60px -35px #0009}
.course-shell body{background:var(--bg);color:var(--ink);font:400 16px/1.7 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;letter-spacing:-.012em}
.course-shell .wrap{width:min(1180px,calc(100% - 64px))}.course-shell main{overflow:clip}.course-shell h1,.course-shell h2,.course-shell h3{letter-spacing:-.045em;text-wrap:balance}.course-shell .eyebrow{font-size:11px;font-weight:750;letter-spacing:.13em;text-transform:uppercase;color:var(--pro-accent)}.course-shell .grad{background-image:linear-gradient(115deg,#9872ff,#64cbd4);-webkit-background-clip:text;background-clip:text}.course-shell:not([data-theme=dark]) .grad{background-image:linear-gradient(115deg,#6b3ccc,#127e96)}
.pro-home-hero{position:relative;padding:80px 0 68px;background:radial-gradient(ellipse at 85% 20%,#7453d618,transparent 60%);border-bottom:1px solid var(--line)}.pro-hero-grid{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:64px}.pro-home-hero h1{font-size:clamp(58px,7vw,92px);line-height:1.02;letter-spacing:-.065em;margin:22px 0}.pro-home-hero .lead{font-size:18px;line-height:1.75;max-width:520px;color:var(--muted)}.pro-home-hero .ctas{justify-content:flex-start;gap:20px;margin-top:30px}.pro-home-note{font-size:11px;color:var(--muted);margin-top:20px}.pro-visual{position:relative;border:1px solid #3b4261;border-radius:28px;background:radial-gradient(ellipse at 50% 20%,#63428d50,transparent 75%),#10182b;box-shadow:0 30px 75px -35px #0008;padding:25px;overflow:hidden;color:#edf2fc}.pro-visual-top{display:flex;justify-content:space-between;gap:14px;font:10px/1.5 var(--mono);letter-spacing:.08em;color:#acbcd4}.pro-visual-top i{display:inline-block;width:6px;height:6px;background:#72d2c4;border-radius:50%;margin-right:7px}.pro-board{width:100%;height:auto;margin:20px 0}.pro-visual-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #33435d;padding-top:18px;gap:14px;font-size:12px}.pro-visual-bottom strong{font-size:20px;letter-spacing:-.025em}.pro-visual-bottom span{color:#acbcd4;font-size:10px}.pro-module-row{display:flex;gap:7px;margin-top:20px;flex-wrap:wrap}.pro-module-row span{padding:5px 9px;border:1px solid #36435b;border-radius:6px;font:10px var(--mono);color:#b4c5dd}.pro-stats{display:grid;grid-template-columns:repeat(3,1fr);padding:24px 0;gap:24px;border-bottom:1px solid var(--line)}.pro-stats>div{display:flex;align-items:center;gap:14px;border-right:1px solid var(--line)}.pro-stats>div:last-child{border:0}.pro-stats strong{font-size:32px;letter-spacing:-.05em}.pro-stats span{font-size:12px;line-height:1.5;color:var(--muted);max-width:130px}.pro-subjects{padding:65px 0 0}.pro-section-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:25px}.pro-section-heading h2{font-size:32px;margin-top:10px}.pro-section-heading p{max-width:380px;color:var(--muted);font-size:14px}.pro-subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.pro-subject-card{position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;transition:transform .2s,border-color .2s,box-shadow .2s}.pro-subject-card:hover{border-color:var(--pro-accent);transform:translateY(-4px);box-shadow:var(--pro-shadow)}.pro-subject-card>span{font:10px var(--mono);color:var(--muted)}.pro-subject-card h3{font-size:28px;margin:28px 0 12px}.pro-subject-card p{color:var(--muted);font-size:13px;line-height:1.75}.pro-subject-card b{display:block;font-size:12px;color:var(--pro-accent);margin-top:25px}.pro-subject-card .pro-arrow{position:absolute;right:24px;top:23px;font-size:22px;color:var(--pro-accent)}
.course-section{padding:72px 0 88px}.course-intro{max-width:none;margin-bottom:28px}.course-intro h2{font-size:clamp(34px,4.5vw,54px);margin:14px 0 18px}.course-intro p{font-size:16px;max-width:670px;line-height:1.8}.course-group{margin:38px 0 48px}.course-group-title{padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:22px}.course-badge{padding:6px 10px;border-radius:6px;font-size:10px;letter-spacing:.1em}.course-group-meta{display:flex;align-items:center;gap:12px}.course-count{font:11px var(--mono);color:var(--muted)}.course-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:stretch}.course-card{position:relative;display:flex;flex-direction:column;padding:28px;border-radius:18px;background:var(--card);box-shadow:0 2px 4px #00000003;transition:transform .2s,box-shadow .2s,border-color .2s;overflow:hidden}.course-card::before{content:'';position:absolute;inset:0 auto 0 0;width:3px;background:var(--pro-accent);opacity:0;transition:opacity .2s}.course-card:hover{transform:translateY(-3px);border-color:var(--pro-accent);box-shadow:var(--pro-shadow)}.course-card:hover::before{opacity:1}.course-card-top{flex-direction:column;gap:14px}.course-card-kicker{display:flex;align-items:center;gap:12px;margin-bottom:22px}.course-card-icon{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:11px;background:var(--bg-2);color:var(--pro-accent)}.course-card-icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.course-card-index{font:10px var(--mono);letter-spacing:.09em;color:var(--muted)}.course-card h3{font-size:23px;line-height:1.25;letter-spacing:-.035em}.course-card h3 a:hover{color:var(--pro-accent)}.course-card time,.course-card .course-date{font-size:11px}.course-card>p{font-size:14px;margin:16px 0 18px;line-height:1.85;max-width:none}.course-tags{gap:6px;margin-bottom:25px}.course-tags span{border:1px solid var(--line);background:transparent;border-radius:6px;font-size:10px;padding:3px 7px}.course-card-actions{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}.course-statement{font-size:11px;color:var(--muted)!important}.course-statement:hover{color:var(--pro-accent)!important}.course-open{border-radius:999px;min-height:44px;padding:11px 19px;gap:18px;background:#7149df;box-shadow:0 6px 20px -14px #6246d0;color:#fff;font-size:12px;line-height:1.5;transition:background .2s,transform .2s}.course-open:hover{background:#6035d0;transform:translateY(-1px)}.course-path{display:none}.course-subject-hero{position:relative;padding:70px 0 50px;background:radial-gradient(ellipse at 85% 15%,#8256d51a,transparent 65%)}.course-subject-hero h1{font-size:clamp(65px,10vw,112px);margin:24px 0;letter-spacing:-.07em}.course-subject-hero .lead{font-size:20px;line-height:1.65;color:var(--muted)}.pro-subject-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.pro-subject-meta span{border:1px solid var(--line);border-radius:999px;padding:5px 10px;font-size:11px;color:var(--muted)}.course-filters{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:28px 0;padding:18px;background:var(--card);border:1px solid var(--line);border-radius:14px}.course-filter-search{flex:1;min-width:200px}.course-filters label{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--muted);margin-bottom:5px}.course-filters input,.course-filters select{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;color:var(--ink);background:var(--bg);font:13px var(--font)}.course-filters select{min-width:170px}.course-filter-result{font-size:11px;color:var(--muted);width:100%}.course-filter-reset{border:1px solid var(--line);padding:10px 13px;border-radius:8px;background:var(--bg-2);color:var(--ink);font:600 12px var(--font);min-height:44px;align-self:end}.course-filter-empty{border:1px dashed var(--line);border-radius:14px;padding:25px;color:var(--muted);font-size:14px}.course-section [hidden]{display:none!important}
.lesson-hero{padding:68px 0 44px;background:radial-gradient(ellipse at 75% 0,#8c5dd912,transparent 65%);border-bottom:1px solid var(--line);margin-bottom:26px}.lesson-hero h1{font-size:clamp(38px,5.8vw,70px);line-height:1.08;max-width:1020px;margin:20px 0 24px;letter-spacing:-.055em}.lesson-hero .lead{font-size:18px;line-height:1.8;color:var(--muted);max-width:820px}.lesson-meta span{font-size:10px;padding:6px 11px;border-radius:999px;background:var(--card)}.lesson-layout{max-width:1000px;padding:0 28px 70px}.lesson-block{padding:38px 0;scroll-margin-top:110px}.lesson-block h2{font-size:clamp(26px,3.2vw,36px);line-height:1.2;letter-spacing:-.04em}.lesson-block h3{font-size:21px;line-height:1.35}.lesson-block p,.lesson-block li{font-size:15px;line-height:1.9}.lesson-block a:not(.course-open):not(.ap-index a):not(.ap-top){text-decoration-thickness:1px;text-underline-offset:4px}.lesson-block pre{border:1px solid #2b3b57;box-shadow:inset 0 1px #ffffff05;line-height:1.85;font-size:12px}.lesson-table-wrap{border:1px solid var(--line);border-radius:12px;margin:22px 0}.lesson-table th{background:var(--bg-2);font-size:10px}.lesson-table td{font-size:13px;padding:15px}.lesson-table tr:last-child td{border-bottom:0}.lesson-block details{background:var(--card);padding:20px}.lesson-block details[open]{border-color:#8766c7}.lesson-block summary{font-size:15px;line-height:1.5}.lesson-note{border-radius:0 12px 12px 0;background:var(--bg-2);padding:22px}.lesson-check{padding:12px 15px;margin:9px 0;border:1px solid var(--line);border-radius:9px;background:var(--card);font-size:14px}.lesson-check:has(input:checked){border-color:#8a70bb;background:var(--pro-soft)}.lesson-demo,.lesson-quiz{padding:26px;border-radius:16px;box-shadow:var(--pro-shadow)}.lesson-nav{margin-top:28px;font-size:12px}.course-footer{padding:30px 0;background:var(--bg);font-size:11px}.rd-lesson-index{margin:0 0 20px;padding:18px 0 22px;border-bottom:1px solid var(--line)}.rd-lesson-index>span{display:block;font:10px var(--mono);color:var(--muted);letter-spacing:.12em;margin-bottom:12px}.rd-lesson-index-links{display:flex;gap:7px;flex-wrap:wrap}.rd-lesson-index a{display:inline-flex;align-items:center;min-height:34px;padding:6px 11px;border:1px solid var(--line);border-radius:7px;background:var(--card);font-size:11px;line-height:1.5;color:var(--ink-2)}.rd-lesson-index a:hover,.rd-lesson-index a[aria-current]{color:var(--pro-accent);border-color:#8e70cd}.ap-card,.en-panel,.espnow-demo,.ap-explorer-tools,.ap-compare-panel{box-shadow:var(--pro-shadow)}.lesson-block .ap-card details{background:transparent;padding:0}.ap-card .lesson-table-wrap{margin:0}.ap-card .ap-fields dd{font-size:14px}.en-figure{padding:14px}.en-figure img{max-height:400px}.en-facts>div{padding:22px}.course-shell :focus-visible{outline:3px solid #9a78e7;outline-offset:4px}
/* Panel de publicación: estilos compartidos, sin intervenir en la lógica PHP. */
.ota-panel main{max-width:1180px;margin:auto;padding:52px 32px 70px}.ota-panel .eyebrow{margin-top:36px}.ota-panel h1{font-size:clamp(40px,6vw,76px);letter-spacing:-.055em;line-height:1.08;margin:20px 0}.ota-panel h1 span{color:var(--pro-accent)}.ota-panel .lead{color:var(--muted);max-width:750px;font-size:18px;line-height:1.8}.ota-panel .back{display:inline-flex;min-height:40px;align-items:center;padding:6px 13px;border:1px solid var(--line);border-radius:99px;color:var(--ink-2);font-size:12px;text-decoration:none}.ota-panel .grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:22px;margin-top:38px}.ota-panel .card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--pro-shadow);min-width:0}.ota-panel .card h2{font-size:23px;margin:0 0 20px;line-height:1.4}.ota-panel .muted{color:var(--muted);font-size:14px;line-height:1.8;margin:16px 0}.ota-panel label{display:block;margin:22px 0 8px;font-size:12px;font-weight:650;color:var(--ink-2)}.ota-panel .field{width:100%;min-height:50px;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:13px;margin:8px 0 18px;font:14px var(--font)}.ota-panel button{min-height:46px;border:0;border-radius:9px;background:#7149df;color:#fff;padding:12px 22px;font:650 13px var(--font)}.ota-panel input::file-selector-button{border:0;border-radius:5px;background:var(--bg-2);color:var(--ink);padding:7px;margin-right:10px}.ota-panel .tag{display:inline-block;padding:5px 10px;border-radius:99px;font-size:11px;background:var(--pro-soft);color:var(--pro-accent)}.ota-panel .alert{padding:16px;border:1px solid #8b76b1;background:var(--bg-2);border-radius:10px;font-size:14px;line-height:1.8}.ota-panel code{display:block;background:var(--bg);color:var(--pro-accent);padding:16px;border:1px solid var(--line);border-radius:10px;overflow-wrap:anywhere;font:12px/1.8 var(--mono);word-break:normal}.ota-panel .steps{margin-top:22px}.ota-panel .steps h2{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.ota-panel .steps li{font-size:14px;line-height:1.8;color:var(--ink-2);padding-block:7px}.ota-panel .foot{font-size:11px;color:var(--muted);margin-top:30px}.ota-panel #ota-indicator{padding:5px 9px;border:1px solid var(--line);border-radius:99px;font-size:11px!important}.ota-panel .rd-course-explorer{margin-inline:-32px;margin-bottom:-70px;margin-top:40px}.ota-panel .logout-button{background:var(--bg-2);color:var(--ink);border:1px solid var(--line)}
@media(max-width:1000px){.pro-hero-grid{gap:35px}.pro-home-hero h1{font-size:72px}.pro-visual{padding:22px}.course-card{padding:25px}.course-card h3{font-size:21px}}
@media(max-width:760px){.course-shell .wrap{width:calc(100% - 36px)}.pro-home-hero{padding:44px 0}.pro-hero-grid{grid-template-columns:1fr;gap:36px}.pro-home-hero h1{font-size:clamp(52px,12vw,78px)}.pro-home-hero .lead{font-size:16px}.pro-visual{max-width:520px;width:100%;margin:auto;border-radius:20px}.pro-board{max-height:230px;margin:5px 0}.pro-stats{gap:12px;padding:20px 0}.pro-stats>div{flex-direction:column;align-items:flex-start;gap:5px}.pro-stats strong{font-size:27px}.pro-stats span{font-size:10px}.pro-subjects{padding-top:45px}.pro-section-heading{align-items:start;flex-direction:column;gap:12px}.pro-subject-grid{grid-template-columns:1fr;gap:12px}.pro-subject-card{padding:23px}.pro-subject-card h3{margin-top:18px}.pro-subject-card b{margin-top:18px}.course-list{grid-template-columns:1fr;gap:14px}.course-section{padding:50px 0}.course-group-title>a{font-size:11px}.course-subject-hero{padding:45px 0 35px}.course-subject-hero .lead{font-size:17px}.course-subject-hero h1{font-size:76px}.course-filters{padding:15px;gap:12px}.course-filter-search{min-width:100%;flex:auto}.course-filters>div:nth-child(2){flex:1}.course-filters select{min-width:0}.course-filter-reset{font-size:11px}.lesson-layout{padding:0 18px 50px}.lesson-hero{padding:40px 0 30px}.lesson-hero .lead{font-size:16px}.lesson-hero h1{font-size:clamp(36px,8.5vw,55px)}.lesson-block{padding:30px 0}.lesson-block p,.lesson-block li{font-size:14px}.lesson-check{font-size:13px;padding:11px}.lesson-table td{font-size:12px;padding:12px}.lesson-block details{padding:16px}.lesson-nav{flex-wrap:wrap}.ota-panel main{padding:30px 18px 45px}.ota-panel .grid{grid-template-columns:1fr;gap:16px;margin-top:28px}.ota-panel .card{padding:22px;border-radius:16px}.ota-panel .lead{font-size:16px}.ota-panel .steps{margin-top:16px}.ota-panel .rd-course-explorer{margin-inline:-18px;margin-bottom:-45px}.ota-panel form>button{width:100%}}
@media(prefers-reduced-motion:reduce){.course-shell *{scroll-behavior:auto!important;transition:none!important;animation:none!important}.course-card:hover,.pro-subject-card:hover{transform:none}}
@media print{.pro-visual,.course-filters,.rd-lesson-index,.rd-course-explorer,.course-card-actions,.ap-card-tools,.ap-mini-demo,.ap-explorer-tools,.ap-view-controls{display:none!important}.course-shell{--ink:#111;--ink-2:#222;--muted:#444;--bg:#fff;--card:#fff;--line:#ccc}.course-list{display:block}.course-card,.lesson-block,.ap-card{break-inside:avoid;box-shadow:none}.course-shell body{background:#fff;color:#111}.pro-home-hero{padding:20px 0}.pro-home-hero h1{font-size:40px}}

/* Portadas y documentos recuperados de la colección de anteproyectos. */
.ap-recovered-media{display:grid;grid-template-columns:190px minmax(0,1fr);gap:28px;align-items:center;margin:25px 0 23px;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px}.lesson-block .ap-document-thumb{position:relative;display:block;padding:10px;background:#fff;border-radius:6px;box-shadow:0 9px 20px -13px #0007;text-decoration:none!important;overflow:hidden}.ap-document-thumb img{display:block;width:100%;height:auto;transition:transform .25s}.ap-document-thumb:hover img{transform:scale(1.025)}.ap-image-hint{position:absolute;bottom:8px;right:8px;padding:5px 8px;border-radius:5px;background:#17243aeb;color:#fff;font-size:9px;line-height:1.5;box-shadow:0 2px 7px #0002}.ap-recovered-media figcaption{min-width:0}.ap-document-kicker{display:block;color:var(--muted);font-size:9px;font-weight:750;letter-spacing:.12em;margin-bottom:10px}.ap-recovered-media figcaption>strong{font-size:20px;line-height:1.3;letter-spacing:-.03em;display:block;color:var(--ink)}.lesson-block .ap-recovered-media figcaption p{font-size:12px;line-height:1.8;color:var(--muted);margin:13px 0 18px}.ap-recovered-media .course-open{font-size:11px;min-height:40px;padding:9px 15px;gap:12px}.lesson-block .ap-document-download{display:block;margin-top:13px;font-size:11px}.ap-image-dialog{padding:0;border:1px solid var(--line);border-radius:18px;background:var(--card);color:var(--ink);width:min(1000px,calc(100% - 32px));max-height:94dvh;box-shadow:0 30px 100px #0008;overflow:hidden}.ap-image-dialog::backdrop{background:#060b16d9;backdrop-filter:blur(6px)}.ap-viewer-head{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 22px;border-bottom:1px solid var(--line)}.ap-viewer-head span{font-size:9px;letter-spacing:.12em;color:var(--muted)}.ap-viewer-head h2{font-size:17px;line-height:1.4;margin:5px 0 0;letter-spacing:-.02em}.ap-viewer-head button,.ap-viewer-controls button{min-height:40px;padding:9px 13px;border:1px solid var(--line);border-radius:8px;background:var(--bg-2);color:var(--ink);font:600 12px var(--font)}.ap-viewer-image{padding:18px;display:flex;align-items:center;justify-content:center;background:var(--bg);overflow:auto;max-height:calc(94dvh - 170px)}.ap-viewer-image img{height:auto;width:auto;max-width:100%;max-height:calc(94dvh - 206px);object-fit:contain;background:#fff;box-shadow:0 5px 20px #0003}.ap-viewer-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 22px;border-top:1px solid var(--line)}.ap-viewer-controls span{font:11px var(--mono);color:var(--muted)}.ap-image-dialog :focus-visible,.ap-document-thumb:focus-visible{outline:3px solid #a58ae5;outline-offset:3px}@media(max-width:600px){.ap-recovered-media{grid-template-columns:115px minmax(0,1fr);gap:16px;padding:15px}.ap-document-thumb{padding:6px!important}.ap-recovered-media figcaption>strong{font-size:16px}.ap-document-kicker{font-size:8px;letter-spacing:.07em}.lesson-block .ap-recovered-media figcaption p{font-size:11px;margin-block:9px 12px}.ap-recovered-media .course-open{font-size:10px;padding:8px 12px;min-height:36px;gap:8px}.lesson-block .ap-document-download{font-size:10px}.ap-image-hint{font-size:8px;bottom:5px;right:5px;padding:3px 5px}.ap-viewer-head{padding:14px}.ap-viewer-head h2{font-size:14px}.ap-viewer-head button,.ap-viewer-controls button{font-size:11px}.ap-viewer-controls{padding:12px 14px}.ap-viewer-image{padding:10px}}@media(max-width:380px){.ap-recovered-media{grid-template-columns:1fr}.ap-document-thumb{width:160px;margin:auto}.ap-recovered-media figcaption{padding-top:6px}}@media(prefers-reduced-motion:reduce){.ap-document-thumb img{transition:none}.ap-document-thumb:hover img{transform:none}}@media print{.ap-recovered-media{grid-template-columns:100px 1fr;box-shadow:none}.ap-image-dialog{display:none!important}}