/* Autoinmunidad · panel (copiado de Encephalon). Mismo lenguaje visual que el curso (/curso/estilo.css):
   claro y sobrio, oscuro si el sistema lo pide. Los nombres de variable
   (--panel, --panel2, --dim, --accent2...) se mantienen porque panel.js los
   usa en estilos en línea. */
:root{
 --bg:#f5f5f7;--panel:#fff;--panel2:#f5f5f7;--line:rgba(0,0,0,.09);
 --text:#1d1d1f;--dim:#6e6e73;--accent:#0071e3;--accent-h:#0077ed;--accent-soft:rgba(0,113,227,.09);
 --accent2:#1f9d55;--ok-soft:rgba(31,157,85,.1);--danger:#e0352b;--bad-soft:rgba(224,53,43,.09);
 --seg:#e8e8ed;--segon:#fff;--bar:rgba(245,245,247,.78);
 --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 28px rgba(0,0,0,.07);
 --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue","Segoe UI",Roboto,Inter,sans-serif;
}
@media(prefers-color-scheme:dark){:root{
 --bg:#000;--panel:#161617;--panel2:#1d1d1f;--line:rgba(255,255,255,.12);
 --text:#f5f5f7;--dim:#a1a1a6;--accent:#2997ff;--accent-h:#47a6ff;--accent-soft:rgba(41,151,255,.14);
 --accent2:#30d158;--ok-soft:rgba(48,209,88,.14);--danger:#ff453a;--bad-soft:rgba(255,69,58,.14);
 --seg:#2c2c2e;--segon:#636366;--bar:rgba(22,22,23,.8);--shadow:0 0 0 1px rgba(255,255,255,.07);
}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.47 var(--font);letter-spacing:-.011em;-webkit-font-smoothing:antialiased}
input,textarea,select,button{font:inherit;color:inherit;letter-spacing:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
h2{margin:0 0 14px;font-size:22px;font-weight:600;letter-spacing:-.025em}
a{color:var(--accent);text-decoration:none}

/* barra superior */
.topbar{display:flex;align-items:center;gap:12px;padding:0 max(22px,calc((100vw - 1120px)/2 + 22px));height:52px;position:sticky;top:0;z-index:10;
 background:var(--bar);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:600;font-size:19px;letter-spacing:-.02em}
.brand svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round}
.brand small{display:none}
.sp{flex:1}
.quien{color:var(--dim);font-size:13px}

/* botones */
button{cursor:pointer;background:var(--accent);color:#fff;border:0;border-radius:99px;padding:9px 20px;font-weight:500;font-size:15px;transition:background .2s}
button:hover{background:var(--accent-h)}
button.ghost{background:var(--seg);color:var(--text)}
button.ghost:hover{background:var(--line)}
button.danger{background:var(--danger)}button.danger:hover{background:var(--danger);filter:brightness(1.08)}
button.small{padding:5px 13px;font-size:13px}
button:disabled{opacity:.4;cursor:default}
.topbar button{padding:5px 13px;font-size:13px}

.msg{position:fixed;left:50%;top:64px;transform:translateX(-50%);z-index:100;padding:11px 18px;border-radius:14px;background:var(--panel);box-shadow:0 8px 30px rgba(0,0,0,.18);max-width:min(90vw,520px);font-size:15px}
.msg.err{color:var(--danger)}
.msg.ok{color:var(--text)}

/* login */
.wrap-estrecho{max-width:440px;margin:0 auto;padding:64px 20px 40px}
.acceso-cab{text-align:center;margin-bottom:28px}
.acceso-cab svg{width:56px;height:56px;fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linejoin:round}
.acceso-cab h1{font-size:40px;font-weight:700;letter-spacing:-.04em;margin:8px 0 4px}
.acceso-cab p{color:var(--dim);font-size:17px;margin:0}
.tabs2{display:flex;gap:2px;margin-bottom:18px;background:var(--seg);border-radius:10px;padding:2px}
.tab2{flex:1;background:transparent;color:var(--text);border-radius:8px;padding:7px 10px;font-size:14px}
.tab2:hover{background:transparent}
.tab2.on,.tab2.on:hover{background:var(--segon);box-shadow:0 1px 3px rgba(0,0,0,.14)}

/* tarjetas y formularios */
.card,.caja{background:var(--panel);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.card label{display:block;margin-bottom:14px;font-size:13px;color:var(--dim)}
.card input:not([type=radio]):not([type=checkbox]),.card textarea,.card select,.caja input:not([type=radio]):not([type=checkbox]),.caja select,.caja textarea{display:block;width:100%;margin-top:5px;padding:10px 12px;background:var(--panel2);border:1px solid transparent;border-radius:10px;font-size:15px;outline:none;transition:box-shadow .2s,border-color .2s}
.card input:focus,.card textarea:focus,.card select:focus,.caja input:focus,.caja select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.row input,.row select{display:inline-block!important;width:auto;margin-top:0!important}
.card input[type=radio],.card input[type=checkbox]{width:auto;accent-color:var(--accent)}
.card textarea{resize:vertical;min-height:80px}
.card button[type=submit],.card form>button{margin-top:4px}
.hint{color:var(--dim);font-size:14px}

/* pestañas de la aplicación */
#vApp{max-width:1120px;margin:0 auto}
.tabs{display:flex;gap:2px;overflow-x:auto;margin:22px 22px 0;padding:2px;background:var(--seg);border-radius:12px;width:fit-content;max-width:calc(100% - 44px)}
.tabs button{background:transparent;color:var(--text);border-radius:10px;white-space:nowrap;padding:7px 16px;font-size:14px}
.tabs button:hover{background:transparent;color:var(--accent)}
.tabs button.on,.tabs button.on:hover{background:var(--segon);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.14)}
main{padding:28px 22px 64px}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}

/* tablas */
table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
th{color:var(--dim);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
tr:last-child td{border-bottom:none}
.pill{display:inline-block;padding:3px 10px;border-radius:99px;font-size:12px;font-weight:500;background:var(--seg)}
.pill.on{color:var(--accent2);background:var(--ok-soft)}
.pill.off{color:var(--danger);background:var(--bad-soft)}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.codigo{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:16px;letter-spacing:.08em;background:var(--panel2);padding:4px 10px;border-radius:8px}
.opciones-editor .op{display:flex;gap:8px;align-items:center;margin-bottom:6px}
.opciones-editor .op input[type=text]{flex:1}

/* cuestionarios */
.quiz-pregunta{background:var(--panel);border-radius:20px;padding:22px 24px;margin-bottom:16px;box-shadow:var(--shadow)}
.quiz-pregunta>p:first-child{font-size:17px;font-weight:500;margin:0 0 12px;line-height:1.4}
.quiz-opcion{display:flex;align-items:center;gap:10px;padding:12px 14px;margin:8px 0;border-radius:14px;background:var(--panel2);cursor:pointer;transition:background .2s,box-shadow .2s;font-size:15px}
.quiz-opcion:hover{background:var(--accent-soft)}
.quiz-opcion:has(input:checked){box-shadow:inset 0 0 0 2px var(--accent)}
.quiz-opcion input{margin:0;accent-color:var(--accent);flex:none}
.quiz-opcion.correcta,.quiz-opcion.correcta:has(input:checked){background:var(--ok-soft);box-shadow:inset 0 0 0 2px var(--accent2)}
.quiz-opcion.incorrecta,.quiz-opcion.incorrecta:has(input:checked){background:var(--bad-soft);box-shadow:inset 0 0 0 2px var(--danger)}
.quiz-opcion:has(input:disabled){cursor:default}
.quiz-pregunta .hint{background:var(--panel2);border-radius:12px;padding:10px 14px;margin:12px 0 0;color:var(--text)}
.nota{display:flex;align-items:center;gap:18px;background:var(--panel);border-radius:20px;padding:20px 24px;margin-bottom:16px;box-shadow:var(--shadow)}
.nota b{font-size:40px;font-weight:700;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.nota span{color:var(--dim)}
.caso-img{max-width:100%;border-radius:14px;margin:10px 0;display:block}
.empty{color:var(--dim);padding:24px;text-align:center}

/* pestaña Atlas */
.atlas-hero{display:grid;grid-template-columns:1.1fr 1fr;background:var(--panel);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:28px}
.atlas-hero .img{background:#000 center/cover no-repeat;min-height:300px}
.atlas-hero .txt{padding:40px 44px;display:flex;flex-direction:column;justify-content:center}
.atlas-hero .eyebrow{color:var(--accent);font-weight:600;margin:0 0 6px}
.atlas-hero h2{font-size:36px;letter-spacing:-.035em;line-height:1.1;margin:0 0 12px}
.atlas-hero p{color:var(--dim);font-size:17px;margin:0 0 22px}
.atlas-hero .acc{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.atlas-hero .acc a.sec{font-weight:500}
.caps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.caps a{display:flex;align-items:center;gap:14px;background:var(--panel);border-radius:16px;padding:14px 18px;color:var(--text);box-shadow:var(--shadow);transition:box-shadow .25s}
.caps a:hover{box-shadow:0 0 0 2px var(--accent)}
.caps a b{flex:none;width:30px;height:30px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px}
.caps a span{font-weight:500}

/* selector de lámina */
.laminaPreview{max-width:220px;max-height:150px;border-radius:12px;background:#000;object-fit:contain;display:block}
.pickerOverlay{position:fixed;inset:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}
.pickerBox{background:var(--panel);border-radius:22px;padding:22px;width:min(900px,100%);max-height:85vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.pickerBox h3{margin:0 0 12px;font-size:19px}
.pickerBox .pickerBuscar{display:block;width:100%;padding:9px 12px;background:var(--seg);border:0;border-radius:10px;margin-bottom:8px;outline:none}
.pickerGrid{overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-top:6px}
.pickerItem{cursor:pointer;background:var(--panel2);border-radius:14px;padding:6px;text-align:center;transition:box-shadow .2s}
.pickerItem:hover{box-shadow:0 0 0 2px var(--accent)}
.pickerItem img{width:100%;height:90px;object-fit:cover;border-radius:10px;display:block;margin-bottom:4px;background:#000}
.pickerItem .lbl{font-size:11px;color:var(--dim);line-height:1.3}

@media(max-width:700px){
 .atlas-hero{grid-template-columns:1fr}.atlas-hero .img{min-height:200px}.atlas-hero .txt{padding:26px}
 .atlas-hero h2{font-size:28px}
 .tabs{margin:16px 16px 0;max-width:calc(100% - 32px)}main{padding:22px 16px 56px}
 .quien{display:none}
}
#fQuiz{scroll-margin-top:72px}

/* portada del curso en la pestaña Curso (imagen generada, sin terceros) */
.atlas-hero .img-curso{background:radial-gradient(circle at 30% 35%,#7ef07e 0 9%,transparent 10%),radial-gradient(circle at 62% 30%,#5fd65f 0 7%,transparent 8%),radial-gradient(circle at 48% 66%,#8af58a 0 10%,transparent 11%),radial-gradient(circle at 78% 70%,#4cc44c 0 6%,transparent 7%),#020402}

/* clave recién generada: franja fija junto a la cuenta */
.franja-clave{display:flex;gap:10px;align-items:center;flex-wrap:wrap;background:#fff7d6;color:#5a4a00;border:1px solid #e6d58a;border-radius:12px;padding:10px 14px;margin:0 0 14px}
tr.franja-clave{display:table-row}tr.franja-clave td{background:#fff7d6;color:#5a4a00}
.franja-clave code{font-size:16px;font-weight:700;background:#fff;padding:2px 8px;border-radius:6px}