/* ==========================================================================
   Transform Your English — hoja de estilo del sitio
   Se usa en index.html, ebook.html e ingles-al-chile.html.
   clases.html lleva su propio CSS adentro, a propósito: no la toques desde aquí.

   Reglas de marca: azul #101E8E plano · verde limón para acciones ·
   rojo solo en detalles chicos · esquinas rectas · nada de degradados ni sombras.
   ========================================================================== */

:root{
  --ink:#101E8E; --ink-deep:#0B1466; --lime:#CDE980; --lime-deep:#B4D65C;
  --red:#EB0029; --gray-d:#55565A; --gray-m:#8A8A8D;
  --paper:#FFFFFF; --soft:#F4F5F0; --line:#E3E4DE; --sky:#BECBFF;
  --display:'Jost','Brandon Grotesque','Century Gothic',sans-serif;
  --body:'Lato',-apple-system,BlinkMacSystemFont,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--gray-d);font-family:var(--body);
     font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1060px;margin:0 auto;padding:0 28px}
p{max-width:62ch}
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:-.01em;line-height:1.1;margin:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:28px;top:12px;z-index:200;background:var(--lime);color:var(--ink);
  padding:10px 18px;font-family:var(--display)}

/* ---------- botones ---------- */
.btn{display:inline-block;font-family:var(--display);font-weight:500;font-size:16px;
     text-decoration:none;padding:14px 28px;border:2px solid transparent;cursor:pointer;
     transition:background .18s,color .18s,border-color .18s}
.btn-lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-lime:hover{background:var(--lime-deep);border-color:var(--lime-deep)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-ink{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ink:hover{background:var(--ink-deep);border-color:var(--ink-deep)}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-sm{font-size:15px;padding:11px 22px}
a:focus-visible,button:focus-visible{outline:3px solid var(--red);outline-offset:3px}

/* ---------- barra de marca y navegación ---------- */
.brandbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.logo{height:36px;width:auto}
.hero .logo{filter:brightness(0) invert(1)}
.navlinks{display:flex;gap:24px;font-family:var(--display);font-size:15px;flex-wrap:wrap}
.navlinks a{text-decoration:none;color:rgba(255,255,255,.82);padding-bottom:2px;
  border-bottom:1px solid transparent;white-space:nowrap}
.navlinks a:hover{color:#fff;border-bottom-color:var(--lime)}
.navlinks a[aria-current="page"]{color:#fff;border-bottom-color:var(--lime)}
@media (max-width:620px){
  .navlinks{gap:16px;font-size:14px}
  .logo{height:30px}
}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:#fff;padding:34px 0 76px}
.hero-main{padding:70px 0 0;max-width:800px}
.hero h1{font-size:clamp(36px,6.2vw,66px);font-weight:300;line-height:1.04;margin:0 0 26px}
.hero .lime{color:var(--lime)}
.hero-sub{color:rgba(255,255,255,.88);font-size:clamp(18px,2.1vw,21px);font-weight:300;
  max-width:52ch;margin:0 0 14px}
.hero-offer{color:var(--sky);font-size:17px;max-width:54ch;margin:0 0 34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:560px){
  .hero-cta .btn{flex:1 1 100%;text-align:center}
  .strip .btn{flex:1 1 100%;text-align:center}
}
.kicker{font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--sky);margin:0 0 18px}

/* el gesto de marca ENGLISH MODE: ON */
.emode{display:inline-flex;align-items:center;gap:12px;font-family:var(--display);
  font-size:clamp(17px,2.2vw,22px);letter-spacing:.05em;color:#fff;margin:0 0 30px;
  text-decoration:none}
.emode .chip{background:var(--lime);color:var(--ink);font-weight:600;letter-spacing:.14em;
  padding:6px 15px;line-height:1;font-size:.82em}
a.emode:hover .chip{background:var(--lime-deep)}
.h2mode{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.h2mode .chip{background:var(--lime);color:var(--ink);font-weight:600;letter-spacing:.14em;
  padding:7px 16px;line-height:1;font-size:.6em;position:relative;top:2px}

/* fila de datos bajo el hero */
.hero-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18);
  margin:56px 0 0}
.hero-meta > div{background:var(--ink);padding:16px 20px}
.hero-meta b{display:block;font-family:var(--display);font-size:11.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sky);font-weight:400;margin-bottom:3px}
.hero-meta span{font-family:var(--display);font-size:16.5px;color:#fff}

/* ---------- secciones ---------- */
section{padding:78px 0}
.soft{background:var(--soft)}
.navy{background:var(--ink);color:#fff}
.navy h2,.navy h3{color:#fff}
.navy p{color:rgba(255,255,255,.85)}
.sechead{margin:0 0 40px;max-width:60ch}
.sechead h2{font-size:clamp(28px,4vw,42px);font-weight:300;color:var(--ink)}
.navy .sechead h2{color:#fff}
.sechead p{margin:16px 0 0;font-size:18px}
.alsohead{font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gray-m);margin:0 0 10px}

.pull{font-family:var(--display);font-weight:300;font-size:clamp(21px,2.9vw,30px);
  line-height:1.26;color:var(--ink);border-left:6px solid var(--lime);
  padding:4px 0 4px 22px;margin:34px 0;max-width:30ch}
.navy .pull{color:#fff}

/* ---------- el ecosistema: tarjetas de producto ---------- */
.eco{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:860px){.eco{grid-template-columns:1fr}}
.prod{border:2px solid var(--ink);background:var(--paper);padding:34px 32px 32px;
  display:flex;flex-direction:column}
.prod .tag{font-family:var(--display);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gray-m);margin:0 0 12px}
.prod h3{font-size:clamp(24px,3vw,31px);color:var(--ink);font-weight:400;line-height:1.08}
.prod .sub{font-family:var(--display);font-size:17px;color:var(--gray-m);margin:8px 0 0}
.prod .lede{margin:18px 0 0;font-size:16.5px;max-width:none}
.prod ul{list-style:none;padding:0;margin:20px 0 0}
.prod li{position:relative;padding:0 0 0 24px;margin:0 0 8px;font-size:15.5px;line-height:1.5}
.prod li::before{content:"";position:absolute;left:0;top:.62em;width:13px;height:3px;background:var(--lime)}
.prod .foot{margin:26px 0 0;padding:18px 0 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.prod .price{font-family:var(--display);font-size:22px;color:var(--ink)}
.prod .price small{font-size:13px;color:var(--gray-m);font-weight:400}
.prod .spacer{flex:1}

/* tarjeta destacada: fondo azul */
.prod.feat{background:var(--ink);border-color:var(--ink);color:#fff}
.prod.feat h3{color:#fff}
.prod.feat .tag{color:var(--lime)}
.prod.feat .sub{color:var(--sky)}
.prod.feat p{color:rgba(255,255,255,.86)}
.prod.feat .foot{border-top-color:rgba(255,255,255,.2)}
.prod.feat .price{color:#fff}
.prod.feat .price small{color:var(--sky)}

/* ---------- tira de lista de espera ---------- */
.strip{background:var(--lime);padding:30px 0}
.strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.strip .t{font-family:var(--display);font-size:clamp(19px,2.4vw,24px);color:var(--ink);
  font-weight:400;max-width:46ch;line-height:1.22}
.strip .t em{font-style:normal;display:block;font-size:14px;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(16,30,142,.62);margin:0 0 6px}

/* ---------- rejillas y tarjetas simples ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:820px){.grid3,.grid2{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);padding:28px 26px}
.soft .card{background:var(--paper)}
.card h3{font-size:21px;color:var(--ink);margin:0 0 10px}
.card p{font-size:16px;margin:0}
.mark{width:34px;height:4px;background:var(--lime);margin:0 0 16px}

.fcard{border-top:3px solid var(--ink);padding:18px 0 0}
.fc-n{display:block;font-family:var(--display);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gray-m);margin:0 0 8px}
.fcard p{font-size:16px;margin:0}

/* ---------- lista numerada de pasos ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
@media (max-width:820px){.steps{grid-template-columns:1fr}}
.step .n{font-family:var(--display);font-weight:500;font-size:34px;color:var(--ink);line-height:1}
.step .bar{height:4px;background:var(--lime);margin:10px 0 12px;width:44px}
.step h3{font-size:19px;color:var(--ink);margin:0 0 6px}
.step p{font-size:15.5px;margin:0}

/* ---------- temario / lecciones ---------- */
.fam{margin:0 0 34px}
.fam-head{display:flex;align-items:baseline;gap:14px;border-bottom:2px solid var(--ink);
  padding:0 0 9px;margin:0 0 4px}
.fam-head h3{font-size:21px;color:var(--ink)}
.fam-head span{font-family:var(--display);font-size:12.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gray-m)}
.fam ol{list-style:none;padding:0;margin:0}
.fam li{display:grid;grid-template-columns:42px 1fr;gap:14px;padding:11px 0;
  border-bottom:1px solid var(--line);align-items:baseline}
.fam li b{font-family:var(--display);font-weight:500;font-size:14px;color:var(--gray-m)}
.fam li .en{font-family:var(--display);font-weight:500;font-size:17.5px;color:var(--ink)}
.fam li .es{display:block;font-size:14.5px;color:var(--gray-m);margin-top:1px}

/* ---------- partes del libro ---------- */
.parts{border-top:2px solid var(--ink)}
.part{display:grid;grid-template-columns:200px 1fr;gap:28px;padding:22px 0;
  border-bottom:1px solid var(--line);align-items:baseline}
@media (max-width:700px){.part{grid-template-columns:1fr;gap:6px}}
.part .pn{font-family:var(--display);font-weight:500;font-size:19px;color:var(--ink);
  letter-spacing:.02em}
.part .pn small{display:block;font-family:var(--body);font-weight:400;font-size:12.5px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--gray-m);margin-bottom:4px}
.part p{margin:0;font-size:16px}

/* ---------- cita / testimonio ---------- */
.quote{font-family:var(--display);font-weight:300;font-size:20px;line-height:1.4;
  color:var(--ink);margin:0}
.quote cite{display:block;font-family:var(--body);font-style:normal;font-size:14px;
  color:var(--gray-m);margin-top:10px}

/* ---------- Mr. G ---------- */
.mrg-intro{display:flex;gap:30px;align-items:center;flex-wrap:wrap}
.mrg-avatar img{width:132px;height:132px;object-fit:cover}
.mrg-hi{font-family:var(--display);font-size:25px;color:var(--ink);margin:0 0 8px}
.mrg-lead{margin:0;font-size:17.5px}
.mrg-creds{list-style:none;padding:0;margin:30px 0 0;display:flex;gap:30px;flex-wrap:wrap}
.mrg-creds li{position:relative;padding-left:22px;font-size:15.5px}
.mrg-creds li::before{content:"";position:absolute;left:0;top:.62em;width:13px;height:3px;
  background:var(--lime)}

/* ---------- bloque de cierre ---------- */
.close{position:relative;color:#fff;overflow:hidden;background:var(--ink);text-align:center}
.close .wrap{position:relative;z-index:1}
.close h2{color:#fff;font-size:clamp(28px,4.2vw,44px);font-weight:300;max-width:22ch;
  margin:0 auto}
.close p{color:rgba(255,255,255,.82);margin:20px auto 32px;font-weight:300;max-width:50ch}
.close.photo{background:linear-gradient(rgba(16,30,142,.945),rgba(16,30,142,.965)),
  url("portada-curso.png") center/cover}

/* ---------- pie ---------- */
footer{background:var(--ink);color:rgba(255,255,255,.72);padding:38px 0;font-size:14.5px;
  border-top:1px solid rgba(255,255,255,.14)}
.footgrid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
footer a{color:var(--lime);text-decoration:none}
footer a:hover{text-decoration:underline}
.footnav{display:flex;gap:20px;flex-wrap:wrap;font-family:var(--display)}
.footnav a{color:rgba(255,255,255,.72)}

/* ---------- utilidades ---------- */
.center{text-align:center}
.mt0{margin-top:0}
.note{background:var(--soft);border-left:5px solid var(--lime);padding:18px 24px;margin:30px 0 0}
.note p{margin:0;font-size:16px}
.navy .note{background:rgba(255,255,255,.07);border-left-color:var(--lime)}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{font-family:var(--display);font-size:18px;color:var(--ink);cursor:pointer;font-weight:500}
.faq p{margin:12px 0 0;font-size:16px}

/* ---------- imágenes (16 oct 2026) ---------- */
img[height]{height:auto}
.split > img{width:100%}
.hero{position:relative;overflow:hidden}
.hero-split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:20px;align-items:end}
.hero-split .hero-main{max-width:none}
.hero-fig{align-self:end;justify-self:center;margin:0 0 -56px;line-height:0}
.hero-fig img{height:520px;width:auto;max-width:none}
.hero-fig.book{margin:0 0 -24px}
.hero-fig.book{justify-self:end}
.hero-fig.book img{height:auto;width:100%;max-width:440px}
.hero-split + .hero-meta{position:relative;z-index:1}
@media (max-width:860px){
  .hero-split{grid-template-columns:1fr}
  .hero-fig{margin:34px auto -56px}
  .hero-fig img{height:340px}
  .hero-fig.book{margin:34px auto -20px}
  .hero-fig.book img{width:100%;max-width:330px}
}
.pimg{display:block;width:calc(100% + 64px);max-width:none;margin:-34px -32px 26px;aspect-ratio:16/10;object-fit:cover}
.card .pimg{width:calc(100% + 54px);margin:-28px -27px 22px}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center}
.split .sechead{margin-bottom:24px}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:30px}}
.figwide{margin:40px 0 0;border:1px solid var(--line)}
.mrg-avatar img{width:220px;height:220px}
@media (max-width:620px){.mrg-avatar img{width:160px;height:160px}}

/* ---------- home: switches y tarjeta ancha (16 oct 2026) ---------- */
.hero-fig.modes{align-self:center;justify-self:end;margin:0;display:flex;flex-direction:column;gap:36px;line-height:1.2}
.sw{display:flex;flex-direction:column;gap:12px}
.sw .lab{font-family:var(--display);font-weight:500;font-size:16px;letter-spacing:.24em;text-transform:uppercase;color:#fff}
.sw .track{position:relative;display:block;width:260px;height:96px;border:2px solid rgba(255,255,255,.35)}
.sw .track i{position:absolute;top:12px;width:68px;height:68px;background:rgba(255,255,255,.35)}
.sw .track b{position:absolute;top:50%;transform:translateY(-50%);font-family:var(--display);font-weight:600;
  font-size:30px;letter-spacing:.14em}
.sw-off .lab{color:rgba(190,203,255,.75)}
.sw-off .track i{left:12px}
.sw-off .track b{right:22px;color:rgba(190,203,255,.75)}
.sw-on .track{background:var(--lime);border-color:var(--lime)}
.sw-on .track i{right:12px;background:var(--ink)}
.sw-on .track b{left:24px;color:var(--ink)}
@media (prefers-reduced-motion:no-preference){
  .sw-on .track{animation:swOn .5s ease-out .7s both}
  .sw-on .track i{animation:knobOn .5s ease-out .7s both}
  .sw-on .track b{animation:fadeIn .3s ease-out 1.1s both}
  @keyframes swOn{from{background:transparent;border-color:rgba(255,255,255,.35)}to{background:var(--lime);border-color:var(--lime)}}
  @keyframes knobOn{from{right:176px;background:rgba(255,255,255,.35)}to{right:12px;background:var(--ink)}}
  @keyframes fadeIn{from{opacity:0}to{opacity:1}}
}
@media (max-width:860px){
  .hero-fig.modes{justify-self:start;margin:40px 0 0;flex-direction:row;flex-wrap:wrap;gap:22px 28px}
  .sw .lab{font-size:12px}
  .sw .track{width:150px;height:56px}
  .sw .track i{top:7px;width:38px;height:38px}
  .sw .track b{font-size:18px}
  .sw-off .track b{right:16px}.sw-on .track b{left:16px}
  @keyframes knobOn{from{right:102px;background:rgba(255,255,255,.35)}to{right:7px;background:var(--ink)}}
  .sw-on .track i{right:7px}.sw-off .track i{left:7px}
}
.prod.wide{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);padding:0;align-items:stretch}
.prod.wide .wideimg{display:block;background:var(--ink)}
.prod.wide .pimg{margin:0;width:100%;height:100%;aspect-ratio:auto;object-fit:contain;object-position:center}
.prod.wide .body{padding:34px 32px 32px;display:flex;flex-direction:column}
@media (max-width:860px){
  .prod.wide{grid-template-columns:1fr}
  .prod.wide .pimg{height:auto;aspect-ratio:16/10}
}
.hero-fig.iac{justify-self:end;margin:0 0 -76px}
.hero-fig.iac img{height:auto;width:100%;max-width:500px}
@media (max-width:860px){.hero-fig.iac{justify-self:center;margin:30px auto -76px}.hero-fig.iac img{max-width:340px}}

/* ¿Cuál es para ti? (16 oct 2026) */
.which{border-top:3px solid var(--ink);margin:0 0 40px}
.which-h{font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--gray-m);margin:14px 0 4px}
.which a{display:grid;grid-template-columns:1fr auto;gap:8px 28px;align-items:baseline;padding:16px 0;
  border-bottom:1px solid var(--line);text-decoration:none;color:var(--gray-d);font-size:16px;line-height:1.5}
.which a b{color:var(--ink);font-weight:700}
.which .w-go{font-family:var(--display);font-weight:500;color:var(--ink);white-space:nowrap}
.which a:hover .w-go{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:3px;text-underline-offset:5px}
@media (max-width:620px){.which a{grid-template-columns:1fr}}