/* Curso Control PID · Academia JAC · estilos propios (claro por defecto, oscuro opcional) */
:root{--ink:#13293a;--muted:#55656f;--line:#dbe4ea;--bg:#F3F6F8;--card:#fff;--navy:#0B2B40;--teal:#00707A;--teal2:#0E8C99;--orange:#F6860A;--orange-t:#A84F00;--ok:#0F7B5C;--bad:#B42318;--warn:#8A5A00;--soft:#EAF4F6;--shadow:0 10px 30px -18px rgba(11,43,64,.45)}
html[data-tema="oscuro"]{--ink:#E6EEF3;--muted:#A9B9C3;--line:#2A3D4B;--bg:#0D1A23;--card:#13232F;--soft:#173240;--teal:#5FD0DA;--teal2:#5FD0DA;--orange-t:#FFC27A;--ok:#5BD69E;--bad:#FF8A80;--warn:#FFC27A;--shadow:0 10px 30px -18px rgba(0,0,0,.8)}
*{box-sizing:border-box}
body{margin:0;font:16px/1.65 "IBM Plex Sans",system-ui,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--teal)}
code{font-family:"IBM Plex Mono",ui-monospace,Consolas,monospace;background:var(--soft);color:var(--teal);border-radius:6px;padding:1px 6px;font-size:.92em}
.wrap{max-width:min(1440px,94vw);margin:0 auto;padding:0 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:12px;padding:10px 16px;font:inherit;font-weight:650;cursor:pointer;text-decoration:none;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn.pri{background:var(--orange);border-color:var(--orange);color:#0B2B40}
.btn.big{padding:13px 22px;font-size:17px}
.lnk{border:0;background:none;color:var(--teal);font:inherit;font-weight:650;cursor:pointer;padding:0;text-decoration:underline}

/* ---------- portada ---------- */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(246,134,10,.18),transparent 60%),linear-gradient(140deg,#071E2D 0%,#0B2B40 45%,#0B4E5E 100%);color:#fff;padding:22px 0 30px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(95,214,222,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(95,214,222,.07) 1px,transparent 1px);background-size:36px 36px;pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.top a.volver{color:#cfe3ec;text-decoration:none;font-weight:600;font-size:.92rem}
.top .acc{display:flex;gap:8px;align-items:center}
.tema{border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);color:#fff;border-radius:20px;padding:6px 12px;font:inherit;font-size:.85rem;cursor:pointer}
.hgrid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:center}
.eyb{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.09em;color:#FFC27A;text-transform:uppercase}
.hero h1{font-family:Oswald,"IBM Plex Sans",sans-serif;font-size:clamp(30px,4.4vw,54px);line-height:1.04;margin:8px 0 12px;letter-spacing:-.01em}
.hero h1 span{color:#FFC27A}
.hero p.lead{color:#d6e6ee;max-width:640px;margin:0 0 16px;font-size:1.05rem}
.stats{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.stats span{border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);border-radius:999px;padding:6px 12px;font-size:.88rem;color:#e8f2f6}
.stats b{color:#FFC27A}
.hcta{display:flex;gap:10px;flex-wrap:wrap}
.hcta .btn{border-color:transparent}
.hcta .btn.gh{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35)}
.scope{background:#06131c;border:1px solid rgba(95,214,222,.35);border-radius:18px;padding:14px 14px 10px;box-shadow:0 20px 50px -20px rgba(0,0,0,.7)}
.scope .sh{display:flex;justify-content:space-between;font-family:"IBM Plex Mono",monospace;font-size:12px;color:#9ED8E0;margin-bottom:6px}
.scope .sh b{color:#7EE2A8}
.scope canvas{width:100%;height:220px;display:block}
.scope .leg{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:#cfe3ec;margin-top:6px}
.scope .leg i{display:inline-block;width:14px;height:3px;border-radius:2px;margin-right:5px;vertical-align:middle}
.scope .kn{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.scope .kn label{font-size:12px;color:#cfe3ec;display:flex;align-items:center;gap:6px}
.scope .kn input{width:90px;accent-color:#F6860A}
@media(max-width:900px){.hgrid{grid-template-columns:1fr}.scope canvas{height:180px}}

/* ---------- distribución ---------- */
.lay{display:grid;grid-template-columns:290px minmax(0,1fr);gap:24px;margin:24px auto 40px}
@media(max-width:900px){.lay{grid-template-columns:1fr}}
.side{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;align-self:start;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow:auto}
@media(max-width:900px){.side{position:static;max-height:none}}
.ring{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.ring svg{width:58px;height:58px;flex:none}
.ring small{color:var(--muted);display:block;font-size:.82rem}
.modh{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.08em;color:var(--orange-t);text-transform:uppercase;margin:14px 0 4px}
#menu button{display:flex;gap:10px;align-items:flex-start;width:100%;text-align:left;border:0;background:none;color:var(--ink);font:inherit;font-size:.93rem;padding:7px 8px;border-radius:10px;cursor:pointer}
#menu button:hover{background:var(--soft)}
#menu button.on{background:var(--soft);font-weight:650}
#menu .ck{flex:none;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700;background:var(--bg);border:1px solid var(--line)}
#menu .hecho .ck{background:var(--ok);border-color:var(--ok);color:#fff}
#menu small{display:block;color:var(--muted);font-size:.78rem;font-weight:400}
main{min-width:0}

/* ---------- mapa del curso ---------- */
.mapa h2{font-family:Oswald,sans-serif;font-size:1.9rem;margin:0 0 4px}
.mapa .sub{color:var(--muted);margin:0 0 16px}
.mods{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.modc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}
.modc .n{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--orange-t)}
.modc h3{margin:0;font-size:1.12rem}
.modc p{margin:0;color:var(--muted);font-size:.92rem}
.modc .bar{height:6px;border-radius:6px;background:var(--bg);overflow:hidden;margin-top:auto}
.modc .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--teal2),var(--orange))}
.modc ul{margin:4px 0 6px;padding-left:18px;font-size:.88rem}
.porque{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:22px 0}
.porque div{background:var(--soft);border-radius:14px;padding:14px}
.porque b{display:block;margin-bottom:2px}

/* ---------- lección ---------- */
.lh{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px 20px;margin-bottom:16px;box-shadow:var(--shadow)}
.lh h1{font-family:Oswald,sans-serif;font-size:clamp(24px,3vw,34px);margin:2px 0 4px;line-height:1.15}
.lh .eyb{color:var(--orange-t)}
.lh .obj{margin:8px 0 0;color:var(--muted)}
.lh .obj b{color:var(--ink)}
.cuerpo{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px 22px;margin-bottom:16px}
.cuerpo h3{font-size:1.15rem;margin:22px 0 6px}
.cuerpo h3:first-child{margin-top:0}
.clave{border-left:4px solid var(--orange);background:linear-gradient(90deg,rgba(246,134,10,.10),transparent);padding:10px 14px;border-radius:0 12px 12px 0;margin:14px 0}
.campo{border:1px solid var(--line);background:var(--soft);border-radius:14px;padding:12px 14px;margin:14px 0}
.campo>b:first-child{display:block;color:var(--teal);font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.formula{font-family:"IBM Plex Mono",monospace;background:#0B2B40;color:#E6F4F6;border-radius:12px;padding:12px 16px;margin:10px 0;overflow:auto;font-size:.95rem}
.formula small{color:#9ED8E0;display:block;font-family:"IBM Plex Sans",sans-serif;margin-top:4px}
table.cmp{width:100%;border-collapse:collapse;font-size:.92rem;margin:10px 0;display:block;overflow:auto}
table.cmp th{background:var(--soft);text-align:left;padding:8px;border-bottom:2px solid var(--line);white-space:nowrap}
table.cmp td{padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.t3{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin:12px 0}
.t3>div{border:1px solid var(--line);border-radius:14px;padding:12px;background:var(--card)}
.t3 b{display:block}
.t3 small{color:var(--muted);display:block;line-height:1.45}
.svgfig{width:100%;max-width:760px;display:block;margin:10px auto}
.qz{border:1px dashed var(--teal);border-radius:14px;padding:12px 14px;margin:16px 0;background:var(--soft)}
.qz>b{display:block;margin-bottom:8px}
.qz button{display:block;width:100%;text-align:left;margin:6px 0;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;padding:9px 12px;font:inherit;cursor:pointer}
.qz button.bien{border-color:var(--ok);background:rgba(15,123,92,.12)}
.qz button.mal{border-color:var(--bad);background:rgba(180,35,24,.10)}
.qz-exp{margin:8px 0 0;font-size:.93rem}

/* ---------- laboratorio de bolsillo ---------- */
.lab{border:1px solid var(--line);border-radius:18px;padding:14px 16px;margin:18px 0;background:var(--card);box-shadow:var(--shadow)}
.lab>b:first-child{display:flex;align-items:center;gap:8px;font-size:1.02rem}
.lab>b:first-child::before{content:"🧮";}
.lab .sub{color:var(--muted);font-size:.88rem;margin:2px 0 10px}
.lab .ins{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.lab label{display:flex;flex-direction:column;font-size:.84rem;color:var(--muted);gap:4px}
.lab input,.lab select{padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;font-size:.95rem}
.lab input[type=range]{padding:0;accent-color:var(--orange)}
.lab .outs{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;margin:12px 0 6px}
.lab .outs div{background:var(--soft);border-radius:12px;padding:8px 10px}
.lab .outs span{display:block;font-size:.78rem;color:var(--muted)}
.lab .outs b{font-family:"IBM Plex Mono",monospace;font-size:1.05rem}
.lab canvas{width:100%;height:220px;display:block;border-radius:12px;background:var(--bg);margin-top:8px}
.lab .nota{font-size:.9rem;margin:6px 0 0}
.ok{color:var(--ok)}.mal{color:var(--bad)}.ojo{color:var(--warn)}

/* ---------- simulador incrustado ---------- */
.simbox{border:2px solid var(--teal2);border-radius:18px;overflow:hidden;background:var(--card);margin:18px 0}
.simbox .sh{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 14px;background:linear-gradient(90deg,#0B2B40,#0B4E5E);color:#fff}
.simbox .sh b{font-size:.98rem}
.simbox .sh a{color:#FFC27A;font-size:.85rem;font-weight:650;text-decoration:none}
.simbox iframe{width:100%;height:900px;border:0;display:block;background:var(--bg)}
.tareas{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:0 0 6px;background:var(--soft)}
.tareas>b{display:block}
.tareas .tsub{color:var(--muted);display:block;margin-bottom:6px;font-size:.82rem}
.tareas div{padding:3px 0}
.tareas .ok{font-weight:650}

.nav-l{display:flex;justify-content:space-between;gap:10px;margin:18px 0 6px;flex-wrap:wrap}
.yay{position:fixed;left:50%;top:18%;transform:translateX(-50%);background:#0B2B40;color:#fff;padding:16px 24px;border-radius:16px;font-size:1.2rem;font-weight:700;z-index:999;box-shadow:0 20px 40px rgba(0,0,0,.35);animation:pop .4s ease}
@keyframes pop{from{transform:translateX(-50%) scale(.7);opacity:0}to{transform:translateX(-50%) scale(1);opacity:1}}

/* ---------- evaluación y constancia ---------- */
.exq{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:10px 0}
.exq b{display:block;margin-bottom:6px}
.exq label{display:block;padding:4px 0;cursor:pointer}
.exq.bien{border-color:var(--ok)}.exq.mal{border-color:var(--bad)}
.res{border-radius:14px;padding:14px;margin:14px 0}
.res.ok{background:rgba(15,123,92,.12);border:1px solid var(--ok)}
.res.bad{background:rgba(180,35,24,.08);border:1px solid var(--bad)}
.res .row{display:flex;gap:8px;flex-wrap:wrap}.res input{flex:1;min-width:200px;padding:10px;border:1px solid var(--line);border-radius:10px;font:inherit}
#constancia{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:1000;display:grid;place-items:center;padding:20px;overflow:auto}
#constancia[hidden]{display:none}
.cert{background:#fff;color:#13293a;max-width:820px;width:100%;border:10px double #0B2B40;border-radius:8px;padding:34px 40px;text-align:center;position:relative}
.cert img{height:62px}.cert .ceyb{display:block;font-family:"IBM Plex Mono",monospace;color:#A84F00;letter-spacing:.08em;margin:8px 0}
.cert h2{font-family:Oswald,sans-serif;font-size:2.1rem;margin:4px 0}.cert h3{margin:4px 0 10px;color:#0B2B40}
.cfirma{display:flex;justify-content:space-between;gap:20px;margin-top:24px;text-align:left}.cfirma small{display:block;color:#5b6b75}
.cleg{font-size:.78rem;color:#5b6b75;margin-top:18px}
.cert .cerrar{position:absolute;top:8px;right:10px;border:0;background:none;font-size:20px;cursor:pointer}
@media print{body>*:not(#constancia){display:none!important}#constancia{position:static;background:none;padding:0}.cert .cerrar{display:none}}

/* ---------- tutor ---------- */
#tutorBtn{position:fixed;right:16px;bottom:16px;z-index:50;background:#0B2B40;color:#fff;border:0;border-radius:999px;padding:12px 18px;font:inherit;font-weight:700;cursor:pointer;box-shadow:0 12px 30px rgba(0,0,0,.3)}
#tutor{position:fixed;right:16px;bottom:72px;width:min(420px,92vw);max-height:70vh;overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.3);z-index:60;display:none;padding:12px}
#tutor.on{display:block}
#tutor .th{display:flex;justify-content:space-between;align-items:center}
#tutor .th button{border:0;background:none;font-size:18px;cursor:pointer;color:var(--ink)}
#tutor .tin{display:flex;gap:6px;margin:8px 0}#tutor input{flex:1;padding:9px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit}
.tsug{display:flex;flex-wrap:wrap;gap:6px}.tsug button{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:999px;padding:4px 10px;font:inherit;font-size:.82rem;cursor:pointer}
.ta{border-top:1px solid var(--line);padding:8px 0}.ta ol{margin:6px 0;padding-left:20px}.ta .tip{font-size:.9rem}.tmas{font-size:.85rem;color:var(--muted)}
.legal{max-width:min(1440px,94vw);margin:0 auto 90px;padding:0 16px;color:var(--muted);font-size:.85rem}

.modc ul .lnk{text-align:left;text-decoration:none;font-weight:600}.modc ul .lnk:hover{text-decoration:underline}.modc li{margin:2px 0}