:root{
  --ink:#14181C; --muted:#56625D; --line:#E3E8E6; --grid:#EEF2F1; --steel:#F3F5F4;
  --mint:#3FCBAE; --mint-ink:#138A73; --mint-soft:#E4F7F2;
  --ok:#138A73; --bad:#C2412D; --bad-soft:#FBEBE7;
  --r:18px; --pad:clamp(16px,4vw,32px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Poppins",system-ui,"Segoe UI",Arial,sans-serif;color:var(--ink);font-size:15px;line-height:1.5;background-color:#fff;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;min-height:100vh;display:flex;flex-direction:column}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
main{width:100%;max-width:1080px;margin:0 auto;padding:12px var(--pad) 40px;flex:1;outline:none}
main.in{animation:in .35s ease both}
@keyframes in{from{transform:translateY(10px)}}
@media (prefers-reduced-motion:reduce){main.in{animation:none}}

/* barra */
.bar{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:12px var(--pad);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:8px;font-weight:600;letter-spacing:.3em;font-size:14px}
.logo i{width:11px;height:11px;border-radius:50%;background:var(--mint)}
.logo em{font-style:normal;letter-spacing:0;font-weight:500;font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:2px 9px;margin-left:4px}
.ring{position:relative;width:42px;height:42px;display:grid;place-items:center}
.ring svg{position:absolute;inset:0;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:3.5}
.ring .bg{stroke:var(--line)}
.ring .fg{stroke:var(--mint);stroke-linecap:round;stroke-dasharray:0 100;transition:stroke-dasharray .6s ease}
.ring b{font-size:11px;font-weight:700}

/* tipografía de marca */
.pills{display:flex;flex-direction:column;align-items:flex-start;gap:6px;margin:10px 0 4px}
.p{display:inline-block;background:var(--ink);color:#fff;font-weight:800;border-radius:12px;padding:3px 14px 5px;letter-spacing:-.01em;line-height:1.18}
.p .k{color:var(--mint)}
.p.xl{font-size:clamp(30px,7vw,52px)}
.p.big{font-size:clamp(24px,5.4vw,38px)}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:99px;padding:3px 11px}
.lead{color:var(--muted);font-size:16px;max-width:620px;margin:12px 0 0}
.lead b{color:var(--ink);font-weight:600}
.h2{font-size:20px;font-weight:800;margin:30px 0 12px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:-6px 0 14px}
.chip{font-size:11px;font-weight:700;border-radius:99px;padding:2px 9px;background:var(--mint-soft);color:var(--mint-ink)}
.chip.ok{background:var(--ink);color:var(--mint)}
.chip.l{background:var(--steel);color:var(--muted)}
.num{font-weight:800;color:var(--mint-ink);font-size:13px;letter-spacing:.06em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:99px;background:var(--ink);color:#fff;font-weight:700;padding:13px 22px;cursor:pointer;font-size:15px;transition:transform .15s ease,background .15s ease;text-align:center}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--ink)}
.btn.sm{padding:8px 14px;font-size:13px}
.link{background:none;border:0;padding:0;color:var(--mint-ink);font-weight:600;text-decoration:underline;cursor:pointer}
.go{font-size:22px;font-weight:700}
.miga{display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:6px 0 14px}
.miga a{font-weight:600;color:var(--ink)}
.miga a+*:before,.miga a+a:before{content:"›";margin-right:8px;color:var(--muted)}
.barra{height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.barra i{display:block;height:100%;background:var(--mint);border-radius:99px;transition:width .6s ease}
.nota{font-size:13px;color:var(--muted);margin-top:22px}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* bienvenida */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;margin-top:12px}
.hero-img{border-radius:28px;overflow:hidden;background:var(--steel);aspect-ratio:4/5}
.hero-img img{width:100%;height:100%;object-fit:cover}
.alta{display:grid;gap:12px;margin-top:22px;max-width:440px}
.alta label{display:grid;gap:5px;font-size:13px;font-weight:600}
.alta label span{font-weight:400;color:var(--muted)}
.alta input{font:inherit;font-size:16px;padding:12px 14px;border:1px solid #CBD5D1;border-radius:14px;background:#fff}
.alta input:focus{outline:2px solid var(--mint);border-color:var(--mint)}
.alta .btn{justify-self:start;margin-top:4px}

/* inicio */
.saludo{display:grid;gap:16px;margin-top:6px}
.saludo .barra{max-width:520px}
.intro-card,.tool{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin-top:22px;transition:border-color .2s,transform .2s}
.intro-card:hover,.tool:hover{border-color:var(--mint);transform:translateY(-2px)}
.intro-card>span:nth-child(2),.tool>span:first-child{flex:1}
.intro-card b,.tool b{display:block;font-size:16px}
.intro-card small,.tool small{color:var(--muted);font-size:13px}
.tool{background:var(--ink);color:#fff;border-color:var(--ink)}
.tool small{color:#C9D3CF}
.tool .go{color:var(--mint)}
.tool.final{background:var(--mint);color:var(--ink);border-color:var(--mint)}
.tool.final small{color:var(--ink)}.tool.final .go{color:var(--ink)}
.mods{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.mod{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,border-color .2s}
.mod:hover{transform:translateY(-3px);border-color:var(--mint)}
.mod .ph{aspect-ratio:4/3;background:var(--steel);overflow:hidden}
.mod .ph img{width:100%;height:100%;object-fit:cover}
.mod .mt{display:flex;justify-content:space-between;align-items:center;padding:12px 14px 0}
.mod b{padding:4px 14px 0;font-size:16px;line-height:1.25}
.mod small{padding:2px 14px 14px;color:var(--muted);font-size:13px}

/* intro */
.cab{margin-top:4px}
.pasos{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.pasos li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px;display:grid;gap:3px}
.pasos .n{width:30px;height:30px;border-radius:50%;background:var(--ink);color:var(--mint);font-weight:800;display:grid;place-items:center;margin-bottom:4px}
.pasos b{font-size:15px}
.pasos small{color:var(--muted);font-size:13px;line-height:1.35}
.pasos em{font-style:normal;font-size:12px;font-weight:700;color:var(--mint-ink);margin-top:4px}
.reglas{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.regla{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.regla .n{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--mint);font-weight:800;margin-bottom:8px}
.regla b{display:block;font-size:16px}
.regla p{margin:4px 0 0;color:var(--muted);font-size:14px}

/* módulo */
.mcab{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center}
.mcab-img{border-radius:24px;overflow:hidden;aspect-ratio:4/3;background:var(--steel)}
.mcab-img img{width:100%;height:100%;object-fit:cover}
.avance{display:grid;gap:6px;margin-top:16px;max-width:420px}
.avance small{color:var(--muted);font-size:13px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin-top:26px}
.prod{display:flex;flex-direction:column;gap:2px;transition:transform .2s}
.prod:hover{transform:translateY(-3px)}
.prod .ph{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/5;background:var(--steel);margin-bottom:8px;border:1px solid var(--line)}
.prod .ph img{width:100%;height:100%;object-fit:cover}
.prod b{font-size:14px;line-height:1.25}
.prod small{font-size:12px;color:var(--muted);line-height:1.3}
.nuevo{position:absolute;left:10px;top:10px;font-style:normal;font-size:11px;font-weight:800;background:#EE6A1F;color:#fff;border-radius:99px;padding:2px 9px}
.visto{position:absolute;right:10px;top:10px;width:24px;height:24px;border-radius:50%;background:var(--mint)}
.visto:after{content:"";position:absolute;left:8.5px;top:5px;width:6px;height:11px;border:solid var(--ink);border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.prod.mini{width:120px;flex:none}
.prod.mini b{font-size:12.5px}
.quiz-cta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--ink);color:#fff;border-radius:var(--r);padding:18px 20px;margin-top:30px}
.quiz-cta b{display:block;font-size:17px}
.quiz-cta small{color:#C9D3CF}
.quiz-cta .btn{background:var(--mint);color:var(--ink)}

/* ficha de producto */
.ficha{display:grid;grid-template-columns:minmax(0,380px) 1fr;gap:30px;align-items:start}
.ficha-img{position:relative;border-radius:24px;overflow:hidden;background:var(--steel);aspect-ratio:4/5;position:sticky;top:84px}
.ficha-img img{width:100%;height:100%;object-fit:cover}
.ficha h1{font-size:clamp(26px,4.4vw,36px);line-height:1.12;margin:10px 0 8px;letter-spacing:-.02em;font-weight:800}
.ficha .para{font-size:17px;margin:0 0 14px}
.fila{border-top:1px solid var(--line);padding:12px 0}
.fila h3{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--mint-ink);margin:0 0 6px}
.fila p{margin:0;font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips span{font-size:13px;font-weight:600;background:#fff;border:1px solid var(--line);border-radius:99px;padding:4px 12px}
.fila.dato,.fila.tip,.fila.ojo{border:0;border-radius:14px;padding:12px 14px;margin-top:8px}
.fila.dato{background:#FDEEE4}.fila.dato h3{color:#B84A0C}
.fila.tip{background:var(--mint-soft)}
.fila.ojo{background:var(--steel)}.fila.ojo h3{color:var(--ink)}
.pasar{display:flex;justify-content:space-between;gap:12px;margin-top:26px;flex-wrap:wrap}
.pasar a{font-weight:600;font-size:14px}
.pasar .sig:not(.btn){text-align:right;margin-left:auto}

/* guía */
.guia{display:grid;gap:10px;margin-top:20px}
.gq{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.gq summary{cursor:pointer;list-style:none;padding:15px 18px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:12px}
.gq summary::-webkit-details-marker{display:none}
.gq summary:after{content:"+";font-size:22px;color:var(--mint-ink);line-height:1}
.gq[open] summary:after{content:"–"}
.gq[open] summary{border-bottom:1px solid var(--line)}
.gp{display:flex;gap:12px;overflow-x:auto;padding:14px 18px 16px}

/* quiz */
.quiz{max-width:720px}
.qtop{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.dots{display:flex;gap:5px}
.dots i{width:22px;height:6px;border-radius:99px;background:var(--line)}
.dots i.h{background:var(--ink)}
.dots i.a{background:var(--mint)}
.qp{font-size:clamp(21px,4vw,28px);line-height:1.28;margin:18px 0;letter-spacing:-.01em}
.ops{display:grid;gap:10px}
.op{text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:15px 18px;font-weight:600;font-size:15.5px;cursor:pointer;transition:border-color .15s,background .15s}
.op:hover:not([disabled]){border-color:var(--ink)}
.op.bien{background:var(--mint-soft);border-color:var(--mint);color:var(--ink)}
.op.mal{background:var(--bad-soft);border-color:var(--bad)}
.op.off{opacity:.5}
.op[disabled]{cursor:default}
.fb{margin:16px 0;padding:14px 16px;border-radius:14px;font-size:15px}
.fb.bien{background:var(--mint-soft)}
.fb.mal{background:var(--bad-soft)}
.fb b{font-weight:800}

/* resultado y certificados */
.res{max-width:820px}
.cert-prev{margin-top:20px;border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 18px 40px rgba(20,24,28,.08)}
.cert-prev canvas{width:100%;height:auto;display:block}
.repaso{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}
.repaso li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--bad);border-radius:12px;padding:12px 14px;display:grid;gap:4px}
.repaso span{color:var(--muted);font-size:14px}
.certs{display:grid;gap:10px;margin-top:22px}
.cert-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.cert-row>span:nth-child(2){flex:1}
.cert-row b{display:block}
.cert-row small{color:var(--muted);font-size:13px}
.cert-row.ok{border-color:var(--mint)}
.cert-final{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;background:var(--mint);border-radius:var(--r);padding:18px 20px;margin-top:22px}
.cert-final b{display:block;font-size:17px}
.cert-final small{font-size:13px}

.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px;font-size:12px;color:var(--muted);padding:18px var(--pad);border-top:1px solid var(--line);background:#fff}

@media (max-width:760px){
  .hero{grid-template-columns:1fr}
  .hero-img{order:-1;aspect-ratio:16/10}
  .mcab{grid-template-columns:1fr}
  .mcab-img{aspect-ratio:16/9}
  .ficha{grid-template-columns:1fr;gap:16px}
  .ficha-img{position:relative;top:0;max-width:340px;margin:0 auto;width:100%}
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .mods{grid-template-columns:repeat(2,1fr);gap:12px}
  .mod b{font-size:14.5px}
  .lead{font-size:15px}
}