/*! Primer disparo, curso de fotografía básico gratuito. apovedam.com */
@font-face{font-family:"Big Shoulders Display";font-style:normal;font-weight:700;font-display:swap;src:url(../fuentes/big-shoulders-display-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Big Shoulders Display";font-style:normal;font-weight:800;font-display:swap;src:url(../fuentes/big-shoulders-display-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:"Big Shoulders Display";font-style:normal;font-weight:900;font-display:swap;src:url(../fuentes/big-shoulders-display-latin-900-normal.woff2) format("woff2")}
@font-face{font-family:"Schibsted Grotesk";font-style:normal;font-weight:400;font-display:swap;src:url(../fuentes/schibsted-grotesk-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Schibsted Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url(../fuentes/schibsted-grotesk-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Schibsted Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url(../fuentes/schibsted-grotesk-latin-700-normal.woff2) format("woff2")}
:root{
  --display:"Big Shoulders Display","Arial Narrow","Roboto Condensed",sans-serif;
  --texto:"Schibsted Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bg:#eef0f2;--surface:#ffffff;--ink:#1a1e23;--muted:#56606b;--line:#d3d8dd;
  --accent:#d7263d;--accent-hover:#9b1226;--accent-ink:#ffffff;--over:#c23b2a;--under:#2a68ab;--ok:#25804d;
  color-scheme:light dark;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#121519;--surface:#1a1f26;--ink:#ebe6da;--muted:#9aa3ad;--line:#2a313a;
    --accent:#ff5a6e;--accent-hover:#ffa3ae;--accent-ink:#2a0509;--over:#ff7a66;--under:#7fb8ff;--ok:#6fd39a;
  }
}
:root[data-theme="dark"]{
  --bg:#121519;--surface:#1a1f26;--ink:#ebe6da;--muted:#9aa3ad;--line:#2a313a;
  --accent:#ff5a6e;--accent-hover:#ffa3ae;--accent-ink:#2a0509;--over:#ff7a66;--under:#7fb8ff;--ok:#6fd39a;
}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 70px);-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.62 var(--texto)}
h1,h2,h3{font-family:var(--display);line-height:.95;letter-spacing:.005em;margin:0;font-weight:800}
img{max-width:100%}
a{color:var(--accent);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent-hover)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .in{max-width:1080px;margin:0 auto;padding:.6rem 1.25rem;display:flex;align-items:center;gap:1rem}
.marca{white-space:nowrap;display:flex;align-items:center;gap:.55rem;font:800 1.55rem/1 var(--display);color:var(--ink);text-decoration:none}
.marca svg{width:24px;height:24px;flex:none;position:relative;top:-.075em}
.marca:hover{color:var(--ink)}
.top nav a:hover{color:var(--accent)}
.lnav a:hover{color:var(--accent)}
.migas a:hover{color:var(--accent)}
.top nav{margin-left:auto;display:flex;gap:.2rem;align-items:center}
.top nav a,.icono{color:var(--ink);text-decoration:none;padding:.45rem .7rem;border-radius:8px;font:500 .95rem/1 var(--texto);background:none;border:0;cursor:pointer}
.top nav a:hover,.icono:hover{background:var(--surface)}
.icono svg{width:20px;height:20px;display:block}
main{max-width:1080px;margin:0 auto;padding:1.75rem 1.25rem 4rem}

.btn:hover{color:var(--accent-ink);filter:brightness(1.08)}
.btn.sec:hover{color:var(--accent);border-color:var(--accent);filter:none}
.btn{display:inline-flex;align-items:center;gap:.5rem;background:var(--accent);color:var(--accent-ink);font:700 1rem var(--texto);border:0;border-radius:999px;padding:.85rem 1.35rem;text-decoration:none;cursor:pointer}
.btn.sec{background:transparent;color:var(--ink);border:1.5px solid var(--line)}

.portada{display:grid;grid-template-columns:1fr 1.1fr;gap:2.5rem;align-items:center;padding:1.5rem 0 3rem}
.portada h1{font-size:clamp(3.4rem,9vw,6.4rem);font-weight:900;line-height:.88;max-width:9ch}
.portada .sub{font-size:1.2rem;color:var(--muted);margin:1.2rem 0 1.6rem}
.portada .cta{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.portada .demo-pie{font-size:.9rem;color:var(--muted);margin:.6rem 0 0}
@media (max-width:820px){.portada{grid-template-columns:1fr;gap:1.5rem;padding-top:.5rem}}

.temario h2{font-size:clamp(2.4rem,6vw,3.4rem)}
.temario .intro-t{color:var(--muted);margin:.6rem 0 1.2rem}
.barra{height:8px;background:var(--line);border-radius:99px;overflow:hidden}
.barra span{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .4s}
.prog-txt{font-size:.92rem;color:var(--muted);margin:.45rem 0 1.4rem}
.temario ol{list-style:none;padding:0;margin:0}
.temario li{display:grid;grid-template-columns:3.2rem 1fr auto;gap:.9rem;align-items:center;padding:1.05rem 0;border-top:1px solid var(--line)}
.temario li:last-child{border-bottom:1px solid var(--line)}
.temario .nivel{font-size:clamp(1.8rem,4.5vw,2.3rem);margin:2.4rem 0 .3rem}
.temario .nivel-intro{color:var(--muted);margin:0 0 1rem}

.temario .num{display:flex;align-items:center;justify-content:center;width:3.2rem;height:3.2rem;border-radius:50%;border:2px solid var(--line);font:900 1.7rem/1 var(--display);color:var(--accent);font-variant-numeric:tabular-nums}
.temario h4{font-family:var(--display);line-height:.95;margin:0;font-size:1.7rem;font-weight:800}
.temario h4 a{color:var(--ink);text-decoration:none}
.temario h4 a:hover{color:var(--accent)}
.temario p{margin:.3rem 0 0;color:var(--muted);font-size:.97rem}
.temario .estado{font-size:.86rem;color:var(--muted);white-space:nowrap}
.temario .estado.hecha{color:var(--ok);font-weight:700}

.visor{position:relative;aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:#000;isolation:isolate}
.shot{position:absolute;inset:0}
.shot svg{width:100%;height:100%;display:block}
.tinte{position:absolute;inset:0;mix-blend-mode:color;opacity:0;pointer-events:none}
.grain{position:absolute;inset:0;background-size:100% 100%;pointer-events:none;opacity:0}
.marcas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.flash{position:absolute;inset:0;background:#000;opacity:0;pointer-events:none}
.flash.on{animation:obt .3s ease-out}
@keyframes obt{0%{opacity:1}100%{opacity:0}}
.aviso{position:absolute;left:.7rem;right:.7rem;bottom:.7rem;margin:0;background:rgba(9,11,14,.88);color:#f3efe6;padding:.6rem .85rem;border-radius:10px;font-size:.95rem;line-height:1.4;opacity:0;transform:translateY(6px);transition:opacity .25s,transform .25s;pointer-events:none}
.aviso.on{opacity:1;transform:none}

.estudio{background:#0e1115;color:#e9e4d8;border-radius:20px;padding:clamp(.7rem,2vw,1.2rem);margin:1.6rem 0 1rem}
.lcd{display:flex;flex-wrap:wrap;align-items:flex-end;gap:.6rem 1.6rem;padding:1rem .3rem .3rem}
.lcd-vals{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:.6rem 1.2rem;flex:1 1 300px}
.lcd .val{display:flex;flex-direction:column;font:800 1.9rem/1 var(--display);font-variant-numeric:tabular-nums}
.lcd .val small{font:400 .78rem/1.2 var(--texto);color:#98a1ab;margin-bottom:.2rem}
.medidor{flex:1 1 230px;min-width:210px}
.escala{position:relative}
.escala svg{display:block;width:100%;height:auto}
.aguja{position:absolute;top:-3px;width:4px;height:20px;border-radius:2px;background:#e9e4d8;transform:translateX(-50%);transition:left .2s,background .2s}
.esc-et{display:flex;justify-content:space-between;font-size:.76rem;color:#98a1ab;padding:0 .2%}
.histo{flex:1 1 230px;min-width:210px}
.histo[hidden]{display:none}
.h-cab{display:flex;justify-content:space-between;gap:.5rem;font-size:.78rem;color:#98a1ab;margin-bottom:.25rem}
.h-aviso{color:#ff8a76;font-weight:700}
.histo svg{display:block;width:100%;height:64px;background:#181d23;border-radius:6px}
.h-area{fill:#d8dde2;opacity:.85}
.h-izq,.h-der{fill:#ff8a76;opacity:0;transition:opacity .2s}
.h-et{display:flex;justify-content:space-between;font-size:.76rem;color:#98a1ab;margin-top:.2rem}
.est{margin:.15rem 0 0;font-size:.95rem;font-weight:700}
.est.ok{color:#6fd39a}.est.over{color:#ff8a76}.est.under{color:#8cc2ff}

.mandos{display:grid;grid-template-columns:repeat(12,1fr);gap:.8rem;margin-top:1rem}
.mandos>.mando{grid-column:span 4}
.mandos[data-n="1"]>.mando{grid-column:span 12}
.mandos[data-n="2"]>.mando,.mandos[data-n="4"]>.mando{grid-column:span 6}
.mandos[data-n="5"]>.mando:nth-child(n+4){grid-column:span 6}
@media (min-width:1000px){.mandos[data-n="4"]>.mando{grid-column:span 3}}
@media (max-width:860px){.mandos>.mando,.mandos[data-n]>.mando{grid-column:span 6}.mandos[data-n="1"]>.mando,.mandos[data-n="3"]>.mando:last-child,.mandos[data-n="5"]>.mando:last-child{grid-column:span 12}}
@media (max-width:560px){.mandos>.mando,.mandos[data-n]>.mando{grid-column:span 12}}
.mando{background:#181d23;border-radius:12px;padding:.8rem .95rem .75rem}
.mando .cab{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.5rem}
.mando label,.mando .lbl{font-weight:700}
.mando output{font:800 1.45rem/1 var(--display);font-variant-numeric:tabular-nums}
.mando input[type=range]{width:100%;accent-color:#ff5a6e;margin:.2rem 0 .3rem;height:28px}
.mando input[type=range]:disabled{opacity:.35}
.mando .extremos{display:flex;justify-content:space-between;font-size:.78rem;color:#7f8892}
.mando .ef{margin:.4rem 0 0;color:#b1b9c1;font-size:.9rem;line-height:1.4}
.mando .ef:empty{display:none}
.mando.auto{outline:1px dashed #3a434d}
.seg{display:flex;flex-wrap:nowrap;background:#0e1115;border-radius:12px;padding:3px;gap:2px}
.seg button{flex:1 1 0;min-width:0;white-space:nowrap;background:none;border:0;color:#cfd5dc;padding:.55rem .7rem;border-radius:9px;cursor:pointer;font:500 .95rem var(--texto)}
.seg button[aria-pressed="true"]{background:#e9e4d8;color:#111418;font-weight:700}
.chip{background:#232a32;color:#cfd5dc;border:0;border-radius:999px;padding:.6rem 1rem;font:500 .95rem var(--texto);cursor:pointer}
.chip[aria-pressed="true"]{background:#2b3a2f;color:#a8ecbf;font-weight:700}
.acciones{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem;align-items:center}
.disparo{margin-left:auto;display:inline-flex;align-items:center;gap:.6rem;background:#e9e4d8;color:#111418;border:0;border-radius:999px;padding:.45rem 1.15rem .45rem .45rem;font:700 1rem var(--texto);cursor:pointer}
.disparo .boton{width:34px;height:34px;border-radius:50%;background:#c23b2a;box-shadow:inset 0 0 0 3px #e9e4d8,0 0 0 2px #c23b2a}
.disparo:active .boton{transform:scale(.9)}

.carrete{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.4rem;margin-top:1rem}
.carrete figure{margin:0}
.carrete .visor{border-radius:6px;background:#181d23}
.carrete figcaption{font-size:.72rem;color:#98a1ab;margin-top:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.retos{margin-top:1.2rem;border-top:1px solid #262c34;padding-top:1rem}
.retos h3{font-size:1.6rem}
.retos .nota{margin:.2rem 0 .7rem;color:#98a1ab;font-size:.92rem}
.retos ul{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
.retos li{display:flex;gap:.7rem;align-items:flex-start;color:#d3d9df;line-height:1.4}
.retos .ck{flex:0 0 24px;height:24px;border-radius:50%;border:2px solid #4a525c;display:grid;place-items:center;margin-top:-1px}
.retos .ck svg{width:14px;height:14px;opacity:0}
.retos li.hecho .ck{background:#6fd39a;border-color:#6fd39a}
.retos li.hecho .ck svg{opacity:1}
.retos li.hecho .txt{color:#8f98a2;text-decoration:line-through;text-decoration-color:#4a525c}

.lec-cab{padding-top:.5rem}
.lec-cab .meta{color:var(--muted);font-size:.95rem;margin:0}
.lec-cab h1{font-size:clamp(3rem,8.5vw,5rem);font-weight:900;line-height:.9;margin:.4rem 0 .9rem}
.lec-cab .intro{font-size:1.18rem;margin:0}
.bloque{margin:3.2rem 0}
.bloque > h2{font-size:clamp(2.1rem,5vw,2.9rem);margin-bottom:.9rem}
.clave{border-left:4px solid var(--accent);padding:.25rem 0 .25rem 1rem;font-weight:700;font-size:1.1rem;margin:1.2rem 0}
.comparativa{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin:1.3rem 0 0}
.comparativa figure{margin:0}
.comparativa .visor{border-radius:10px}
.comparativa figcaption{font-size:.93rem;color:var(--muted);margin-top:.45rem;line-height:1.45}
.comparativa figcaption b{display:block;color:var(--ink);font:800 1.4rem/1.1 var(--display)}
.tabla{overflow-x:auto;margin-top:1.2rem}
.tabla table{border-collapse:collapse;width:100%;min-width:520px}
.tabla th,.tabla td{text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--line);vertical-align:top}
.tabla th{font-size:.9rem;color:var(--muted);font-weight:700}
.tabla td:first-child{font-weight:700;white-space:nowrap}
.bloque ol li,.bloque ul li{margin:.45rem 0;padding-left:.3rem}

.test fieldset{border:0;padding:0;margin:0 0 1.8rem}
.test legend{font-weight:700;font-size:1.1rem;margin-bottom:.7rem;padding:0}
.test .ops{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:.5rem}
.test .op{background:var(--surface);color:var(--ink);border:1.5px solid var(--line);border-radius:10px;padding:.65rem 1rem;font:inherit;cursor:pointer;text-align:left}
.test .op:hover:not([disabled]){border-color:var(--accent)}
.test .op[disabled]{cursor:default}
.test .op.bien{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 14%,var(--surface))}
.test .op.mal{border-color:var(--over);background:color-mix(in srgb,var(--over) 12%,var(--surface))}
.test .expl{margin:.7rem 0 0;color:var(--muted)}
.resultado{font-weight:700;font-size:1.15rem;margin:0 0 1rem}
.resultado.ok{color:var(--ok)}
.lnav{overflow-x:auto;margin:0 -1.25rem 1.2rem;padding:.2rem 1.25rem .4rem;scrollbar-width:thin}
.lnav ol{display:flex;gap:.45rem;list-style:none;padding:0;margin:0}
.lnav a{display:flex;gap:.45rem;align-items:baseline;white-space:nowrap;padding:.5rem .85rem;border-radius:999px;border:1.5px solid var(--line);color:var(--ink);text-decoration:none;font-size:.92rem;font-weight:500}
.lnav a:hover{border-color:var(--accent)}
.lnav .n{font:800 1.15rem/1 var(--display);color:var(--accent)}
.lnav a[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.lnav .ok{color:var(--ok);font-weight:700}
.siguiente .navs{display:flex;flex-wrap:wrap;gap:.6rem}
.siguiente{border-top:1px solid var(--line);padding-top:1.6rem;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
.siguiente p{margin:0;color:var(--muted)}
.siguiente strong{color:var(--ink)}

/* Glosario */
.term{color:var(--accent);font-weight:500;cursor:help}
.term:hover{color:var(--accent)}
.pop{position:absolute;z-index:30;max-width:min(340px,calc(100vw - 24px));background:var(--surface);color:var(--ink);border:1.5px solid var(--line);border-radius:12px;padding:.85rem 1rem;box-shadow:0 10px 30px rgba(0,0,0,.25);font-size:.95rem;line-height:1.45}
.pop strong{display:block;font:800 1.35rem/1.05 var(--display);margin-bottom:.3rem}
.pop p{margin:0 0 .5rem}
.pop a{font-size:.9rem}
.glos h1,.ch h1{font-size:clamp(3rem,8.5vw,5rem);font-weight:900;line-height:.9;margin:.4rem 0 .8rem}
.glos .intro,.ch .intro{font-size:1.1rem;color:var(--muted);margin:0 0 1.4rem}
.buscar{width:100%;font:inherit;padding:.75rem 1rem;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink)}
.letra{font-size:2.6rem;color:var(--accent);margin:2rem 0 .4rem}
.glos dl{margin:0}
.glos dt{font-weight:700;font-size:1.08rem;padding-top:.9rem;border-top:1px solid var(--line)}
.glos dd{margin:.2rem 0 .9rem;color:var(--muted)}
.glos .vacio{color:var(--muted)}
/* Chuleta */
.ch-acc{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1.2rem}
.ch-nota{font-size:.9rem;color:var(--muted);margin:0 0 2rem}
.ch-grid{display:grid;grid-template-columns:1fr;gap:2.4rem}
.ch-sec h2{font-size:2.2rem;color:var(--accent);margin-bottom:.8rem}
.ch-esc{margin-bottom:1.2rem}
.ch-esc h3{font:700 1rem var(--texto);margin-bottom:.3rem}
.ch-vals{display:flex;justify-content:space-between;gap:.5rem;font:800 1.6rem/1.1 var(--display);border-bottom:2px solid var(--line);padding-bottom:.3rem;font-variant-numeric:tabular-nums}
.ch-ext{display:flex;justify-content:space-between;gap:1rem;color:var(--muted);font-size:.88rem;margin-top:.3rem}
.ch-ext span:last-child{text-align:right}
.ch .tabla{margin-top:0}
.ch .tabla table{min-width:0}
.ch ol{padding-left:1.3rem;margin:0}
.ch li{margin:.5rem 0}
@media (max-width:430px){.marca .txt{display:none}.top nav a{padding:.45rem .5rem}}
@media print{
  :root{--bg:#fff;--surface:#fff;--ink:#000;--muted:#444;--line:#bbb;--accent:#8a4f00}
  .top,footer,.no-print,.pop{display:none!important}
  body{background:#fff;color:#000;font-size:11pt}
  main{padding:0;max-width:none}
  .ch h1{font-size:34pt}
  .ch-sec{break-inside:avoid}
}

footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer .in{max-width:1080px;margin:0 auto;padding:1.5rem 1.25rem}
@media (max-width:560px){
  .acciones{display:grid;grid-template-columns:1fr}
  .acciones .chip,.disparo{width:100%;justify-content:center;text-align:center;margin-left:0}
  .portada .cta,.ch-acc{display:grid;grid-template-columns:1fr}
  .portada .cta .btn,.ch-acc .btn{justify-content:center}
  .siguiente{display:grid;grid-template-columns:1fr}
  .siguiente .navs{display:grid;grid-auto-flow:column;grid-auto-columns:1fr}
  .siguiente .navs .btn{justify-content:center;padding:.8rem .6rem}
  .mando .chip{width:100%}
  .temario li{grid-template-columns:2.8rem 1fr;row-gap:.35rem;align-items:start}
  .temario .num{width:2.8rem;height:2.8rem;font-size:1.45rem}
  .temario .estado{grid-column:2}
}

/* ---------- Páginas independientes ---------- */
.saltar{position:absolute;left:-999px;top:0;z-index:50;background:var(--accent);color:var(--accent-ink);padding:.6rem 1rem;border-radius:0 0 8px 0;font-weight:700}
.saltar:focus{left:0}
.top nav a[aria-current="page"]{background:var(--surface);font-weight:700}
.migas{font-size:.88rem;color:var(--muted);margin:0 0 .9rem}
.migas ol{list-style:none;display:flex;flex-wrap:wrap;gap:.3rem;padding:0;margin:0}
.migas li+li::before{content:"/";margin-right:.35rem;color:var(--line)}
.migas a{color:var(--muted)}
.estudio-reserva{min-height:420px;background:#0e1115;border-radius:20px;margin:1.6rem 0 1rem;color:#cfd5dc;padding:1.2rem}
.bloque-comp{margin-top:-1.4rem}
.sobre{margin:3.5rem 0 0}
.sobre p{max-width:none}
.sobre h2{font-size:clamp(2.4rem,6vw,3.4rem);margin-bottom:.9rem}
.sobre h3{font-size:1.7rem;margin:2rem 0 .6rem}
.faq dt{font-weight:700;margin-top:1.1rem}
.faq dd{margin:.3rem 0 0;color:var(--muted)}
.glos .grupo[hidden],.glos .def[hidden]{display:none}
.glos .def{scroll-margin-top:90px}
.glos .def:target dt{color:var(--accent)}

.glos .def{padding:.1rem 0}
.glos dt,.glos dd{max-width:none}
.glos .intro{max-width:none}

/* ---------- Portada: hero a todo el ancho con parallax ---------- */
.portada-pag main{padding-top:0}
.portada-pag .top{position:fixed;left:0;right:0;background:transparent;border-bottom-color:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;transition:background .25s,border-color .25s}
.portada-pag .top .marca,.portada-pag .top nav a,.portada-pag .top .icono{color:#f3efe6}
.portada-pag .top nav a:hover,.portada-pag .top .icono:hover{background:rgba(255,255,255,.12);color:#fff}
.portada-pag .top.solida{background:color-mix(in srgb,var(--bg) 92%,transparent);border-bottom-color:var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.portada-pag .top.solida .marca,.portada-pag .top.solida nav a,.portada-pag .top.solida .icono{color:var(--ink)}
.portada-pag .top.solida nav a:hover{background:var(--surface);color:var(--accent)}
.portada-pag .top .marca svg circle+circle{fill:#0b0d10!important}
.portada-pag .top.solida .marca svg circle+circle{fill:var(--bg)!important}
.hero{position:relative;width:100vw;margin-left:calc(50% - 50vw);min-height:100vh;min-height:100svh;display:grid;place-items:center;overflow:hidden;isolation:isolate;color:#f3efe6;text-align:center;background:#07080b}
.hero-fondo{position:absolute;left:0;right:0;top:0;bottom:-30%;z-index:-2;will-change:transform}
.hero-fondo picture,.hero-fondo img{display:block;width:100%;height:100%}
.hero-fondo img{object-fit:cover;object-position:62% 40%}
.hero-velo{position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse 60% 55% at 50% 50%,rgba(7,8,11,.72) 0%,rgba(7,8,11,.45) 60%,rgba(7,8,11,.25) 100%),linear-gradient(to bottom,rgba(7,8,11,.35) 0%,rgba(7,8,11,0) 30%,rgba(7,8,11,0) 70%,rgba(7,8,11,.85) 100%)}
.hero-txt{width:min(100%,960px);padding:calc(env(safe-area-inset-top,0px) + 7rem) 1.25rem 6rem}
.hero h1{font-size:clamp(3.6rem,11vw,8.2rem);font-weight:900;line-height:.86;margin:0 auto .35em;max-width:11ch;text-shadow:0 4px 40px rgba(0,0,0,.45)}
.hero .sub{font-size:clamp(1.05rem,2.1vw,1.35rem);color:#ddd8ce;max-width:46ch;margin:0 auto 2rem}
.hero .cta{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center}
.hero .btn{padding:1rem 1.6rem;font-size:1.05rem}
.hero .btn.sec{color:#f3efe6;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.04);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.hero .btn.sec:hover{color:#fff;border-color:#fff}
.hero-bajar{position:absolute;bottom:calc(env(safe-area-inset-bottom,0px) + 1.4rem);left:50%;transform:translateX(-50%);width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#f3efe6;border:1.5px solid rgba(255,255,255,.35);animation:bajar 2.4s ease-in-out infinite}
.hero-bajar:hover{color:#fff;border-color:#fff}
.hero-bajar svg{width:22px;height:22px}
@keyframes bajar{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,6px)}}
.demo-sec{display:grid;grid-template-columns:1fr 1.1fr;gap:2.5rem;align-items:center;padding:4.5rem 0 3.5rem}
.demo-sec h2{font-size:clamp(2.4rem,6vw,3.4rem);margin-bottom:1rem}
.demo-sec p{color:var(--muted);font-size:1.08rem}
.demo-sec .demo-pie{font-size:.9rem;margin:.6rem 0 0}
@media (max-width:820px){.demo-sec{grid-template-columns:1fr;gap:1.5rem;padding-top:3.5rem}}
@media (max-width:560px){.hero .cta{display:grid;grid-template-columns:1fr;width:100%;max-width:340px;margin:0 auto}.hero .btn{justify-content:center}.hero-fondo img{object-position:72% 40%}}

/* ---------- Sin barras de desplazamiento horizontales ---------- */
html,body{overflow-x:clip}
.lnav{scrollbar-width:none;-ms-overflow-style:none}
.lnav::-webkit-scrollbar{display:none}
@media (min-width:900px){.lnav{overflow:visible;margin:0 0 1.2rem;padding:.2rem 0 .4rem}.lnav ol{flex-wrap:wrap}}

/* ---------- Título del hero: dos líneas y «fotografía» enfocada ---------- */
.hero-txt{width:min(100%,1180px)}
.hero h1{font-size:clamp(2.7rem,8.6vw,7.2rem);line-height:1.04;max-width:none;margin-bottom:.45em;letter-spacing:.005em}
.hero h1 .resalte{position:relative;display:inline-block;padding:.06em .16em .16em;margin:0 .04em .12em;line-height:1;vertical-align:baseline;
  background:linear-gradient(100deg,#ff5a6e 0%,#ff8a6a 55%,#ffc27a 100%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;text-shadow:none}
.hero h1 .resalte::before{content:"";position:absolute;inset:0;pointer-events:none;--c:#ff5a6e;--l:.26em;--g:max(3px,.035em);
  background:
    linear-gradient(var(--c),var(--c)) top left/var(--l) var(--g) no-repeat,
    linear-gradient(var(--c),var(--c)) top left/var(--g) var(--l) no-repeat,
    linear-gradient(var(--c),var(--c)) top right/var(--l) var(--g) no-repeat,
    linear-gradient(var(--c),var(--c)) top right/var(--g) var(--l) no-repeat,
    linear-gradient(var(--c),var(--c)) bottom left/var(--l) var(--g) no-repeat,
    linear-gradient(var(--c),var(--c)) bottom left/var(--g) var(--l) no-repeat,
    linear-gradient(var(--c),var(--c)) bottom right/var(--l) var(--g) no-repeat,
    linear-gradient(var(--c),var(--c)) bottom right/var(--g) var(--l) no-repeat;
  animation:enfocar 1.1s cubic-bezier(.2,.8,.2,1) .25s both}
.hero h1 .resalte::after{content:"";position:absolute;left:50%;top:50%;width:.12em;height:.12em;border-radius:50%;background:#ff5a6e;transform:translate(-50%,-50%);opacity:0;animation:punto 1.1s ease .9s both}
@keyframes enfocar{0%{transform:scale(.82);opacity:0}65%{transform:scale(1.02);opacity:1}100%{transform:scale(1);opacity:1}}
@keyframes punto{0%{opacity:0}40%{opacity:.9}100%{opacity:0}}
@media (max-width:560px){.hero-txt{padding-left:1rem;padding-right:1rem}.hero h1{font-size:clamp(1.8rem,9vw,3.4rem)}}

/* ---------- Temario desplegable en las lecciones ---------- */
.ldrop{position:relative;margin:0 0 1.4rem;z-index:15}
.ldrop summary{list-style:none;display:flex;align-items:center;gap:.9rem;cursor:pointer;padding:.75rem 1rem;border:1.5px solid var(--line);border-radius:14px;background:var(--surface);user-select:none}
.ldrop summary::-webkit-details-marker{display:none}
.ldrop summary:hover{border-color:var(--accent)}
.ldrop[open] summary{border-color:var(--accent);border-bottom-left-radius:0;border-bottom-right-radius:0}
.ldrop-lbl{font-size:.85rem;color:var(--muted);font-weight:500}
.ldrop-act{display:flex;align-items:baseline;gap:.5rem;font-weight:700;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ldrop .n{font:900 1.25rem/1 var(--display);color:var(--accent);min-width:1.4em}
.ldrop-ico{width:22px;height:22px;flex:none;color:var(--muted);transition:transform .2s}
.ldrop[open] .ldrop-ico{transform:rotate(180deg);color:var(--accent)}
.ldrop-panel{position:absolute;left:0;right:0;top:100%;display:grid;grid-template-columns:1fr 1fr;gap:0 2rem;padding:1rem 1.2rem 1.2rem;background:var(--surface);border:1.5px solid var(--accent);border-top:0;border-radius:0 0 14px 14px;box-shadow:0 18px 40px rgba(0,0,0,.18);max-height:min(70vh,560px);overflow:auto}
.ldrop-nivel{margin:.3rem 0 .5rem;font:800 1.35rem/1 var(--display)}
.ldrop-panel ol{list-style:none;margin:0;padding:0}
.ldrop-panel a{display:flex;align-items:baseline;gap:.6rem;padding:.5rem .6rem;border-radius:9px;color:var(--ink);font-weight:500}
.ldrop-panel a:hover{background:var(--bg);color:var(--accent)}
.ldrop-panel a[aria-current="page"]{background:var(--ink);color:var(--bg)}
.ldrop-panel a[aria-current="page"] .n{color:var(--bg)}
.ldrop-panel .t{flex:1}
.ldrop-panel .ok{color:var(--ok);font-weight:700}
@media (max-width:700px){.ldrop-panel{grid-template-columns:1fr}.ldrop-lbl{display:none}}

/* Aviso de foto movida (trepidación) en el visor */
.movida{position:absolute;left:.7rem;right:.7rem;top:.7rem;margin:0;padding:.5rem .8rem;border-radius:10px;background:rgba(194,59,42,.92);color:#fff;font-size:.9rem;font-weight:700;line-height:1.35;pointer-events:none}
.movida[hidden]{display:none}

/* ---------- Donaciones ---------- */
.ico-donar{width:1.05em;height:1.05em;flex:none}
.top nav .nav-donar{display:inline-flex;align-items:center;gap:.4rem;background:var(--accent);color:var(--accent-ink);font-weight:700;border-radius:999px;padding:.45rem .9rem;margin-left:.25rem}
.top nav .nav-donar:hover{background:var(--accent);color:var(--accent-ink);filter:brightness(1.1)}
.portada-pag .top nav .nav-donar,.portada-pag .top.solida nav .nav-donar{color:#fff;background:var(--accent)}
.donar-caja{display:flex;align-items:center;justify-content:space-between;gap:1.5rem 2rem;flex-wrap:wrap;margin:2.5rem 0 0;padding:1.6rem 1.8rem;border:1.5px solid var(--line);border-left:5px solid var(--accent);border-radius:16px;background:var(--surface)}
.donar-caja h2{font-size:clamp(1.7rem,4vw,2.2rem);margin:0 0 .4rem}
.donar-caja p{margin:0;color:var(--muted)}
.donar-caja>div{flex:1 1 380px}
.donar-caja .btn{white-space:nowrap}
.sobre .donar-caja{margin:2rem 0 1rem}
@media (max-width:560px){
  .top nav{gap:0}
  .top nav a{padding:.45rem .42rem;font-size:.9rem}
  .top nav .nav-donar{padding:.42rem .6rem;margin-left:.1rem}
  .top nav .nav-donar span{display:none}
  .donar-caja{padding:1.3rem 1.2rem}
  .donar-caja .btn{width:100%;justify-content:center}
}
@media (max-width:360px){.top .in{padding-left:.8rem;padding-right:.8rem;gap:.4rem}.top nav a{padding:.4rem .3rem;font-size:.84rem}.icono{padding:.4rem .3rem}}

/* ---------- Botón de donar: corazón centrado en un círculo en móvil ---------- */
.ico-donar{display:block}
@media (max-width:560px){
  .top nav .nav-donar{width:36px;height:36px;padding:0;margin-left:.3rem;border-radius:50%;justify-content:center;gap:0;flex:none}
  .top nav .nav-donar .ico-donar{width:18px;height:18px;margin-top:1px}
  .top nav .icono{width:36px;height:36px;padding:0;display:grid;place-items:center;border-radius:50%}
}

/* ---------- Hero con fotografía real ---------- */
.hero-fondo img{object-position:70% 50%}
.hero-velo{background:
  radial-gradient(ellipse 58% 52% at 50% 50%,rgba(7,8,11,.62) 0%,rgba(7,8,11,.38) 65%,rgba(7,8,11,.18) 100%),
  linear-gradient(to bottom,rgba(7,8,11,.45) 0%,rgba(7,8,11,0) 28%,rgba(7,8,11,0) 68%,rgba(7,8,11,.88) 100%)}
@media (max-width:560px){.hero-fondo img{object-position:80% 50%}.hero-velo{background:linear-gradient(to bottom,rgba(7,8,11,.55),rgba(7,8,11,.5) 45%,rgba(7,8,11,.88))}}

/* Términos del glosario en la primera columna de las tablas: mantienen la negrita */
.tabla td:first-child .term{font-weight:inherit}

/* ---------- Enlace con el curso de vídeo y edición ---------- */
.cruce{display:flex;gap:1.1rem;align-items:center;margin:2.5rem 0;padding:1.2rem 1.4rem;border:1.5px solid var(--line);border-radius:16px;background:var(--surface)}
.cruce .ico{flex:none;width:52px;height:52px;border-radius:50%;background:var(--ink);display:grid;place-items:center}
.cruce .ico svg{width:30px;height:30px}
.cruce h2{font-size:1.6rem;margin:0 0 .25rem}
.cruce p{margin:0;color:var(--muted);font-size:.97rem}
.cruce ul{margin:.4rem 0 0;padding-left:1.1rem}
@media (max-width:560px){.cruce{flex-direction:column;align-items:flex-start}.top nav .solo-ancho{display:none}}
@media print{.cruce{display:none!important}}