:root{
  --gold:#B99A6F;
  --bronze:#A4794A;
  --bronze-deep:#7E5C36;
  --ink:#404040;
  --ink-soft:#6B6B6B;
  --steel:#9599A7;
  --mist:#DCDCDE;
  --paper:#F8F8F8;
  --cream:#FBF7F1;
  --sand:#F3EADD;
  --white:#FFFFFF;
  --ok:#5F7F5A;
  --radius:22px;
  --shadow:0 1px 2px rgba(64,64,64,.05),0 12px 32px -12px rgba(124,92,54,.18);
  --serif:"Libre Franklin",system-ui,sans-serif;
  --sans:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--cream);color:var(--ink);font:400 17px/1.72 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--bronze)}
h1,h2,h3{font-family:var(--serif);color:var(--ink);line-height:1.18;letter-spacing:-.015em;margin:0}
strong{color:var(--ink);font-weight:600}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.wrap{padding:0 16px}}

.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--gold),var(--bronze));z-index:60;transition:width .1s linear}

header.site{position:sticky;top:0;z-index:50;background:rgba(251,247,241,.82);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid rgba(185,154,111,.18)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:16px}
header.site .logo img{height:50px;width:auto}
header.site nav{display:flex;gap:28px;font:500 14px var(--sans)}
header.site nav a{color:var(--ink);text-decoration:none;opacity:.75;transition:opacity .2s}
header.site nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;gap:10px;border:0;cursor:pointer;text-decoration:none;font:600 15px var(--sans);border-radius:999px;padding:13px 22px;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:var(--bronze);color:#fff;box-shadow:0 8px 20px -8px rgba(164,121,74,.7)}
.btn-primary:hover{background:var(--bronze-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--bronze);border:1.5px solid rgba(164,121,74,.4)}
.btn-ghost:hover{border-color:var(--bronze);background:rgba(185,154,111,.08)}
@media(max-width:860px){header.site nav{display:none}header.site .logo img{height:40px}header.site .btn{padding:10px 16px;font-size:14px}}

.hero{position:relative;padding:56px 0 72px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-20% -10% auto auto;width:720px;height:720px;background:radial-gradient(closest-side,rgba(185,154,111,.28),transparent 70%);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font:500 13px var(--sans);color:var(--ink-soft);margin-bottom:22px;list-style:none;padding:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--gold)}
.crumbs a{color:inherit;text-decoration:none}
.crumbs a:hover{color:var(--bronze)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:600 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--bronze)}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--gold)}
.hero h1{font-size:clamp(34px,5.2vw,60px);font-weight:600;margin:16px 0 22px}
.hero h1 em{font-style:normal;color:var(--bronze);font-weight:300}
.hero .lead{font-size:19px;color:var(--ink-soft);max-width:580px}
.hero .lead strong{color:var(--ink)}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 32px}
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--white);border:1px solid rgba(185,154,111,.25);border-radius:999px;padding:7px 14px;font:500 13px var(--sans);color:var(--ink)}
.pill svg{width:15px;height:15px;color:var(--bronze)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-art{position:relative}
.hero-art img{border-radius:32px;box-shadow:var(--shadow);aspect-ratio:1;object-fit:cover;width:100%;height:auto}
.hero-art .badge{position:absolute;left:-22px;bottom:28px;background:var(--white);border-radius:18px;padding:14px 18px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;font:500 14px var(--sans);max-width:250px}
.hero-art .badge b{font:700 28px var(--serif);color:var(--bronze);line-height:1}
@media(max-width:900px){.hero{padding:32px 0 48px}.hero .wrap{grid-template-columns:1fr;gap:36px}.hero-art{max-width:440px}.hero-art .badge{left:12px}}

.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:64px;padding:24px 0 80px}
@media(max-width:1020px){.layout{grid-template-columns:1fr;gap:0}}
aside.toc{position:sticky;top:104px;align-self:start}
aside.toc p{font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--steel);margin:0 0 14px}
aside.toc ol{list-style:none;margin:0;padding:0;border-left:1.5px solid var(--mist)}
aside.toc ol a{display:block;padding:8px 0 8px 18px;margin-left:-1.5px;border-left:1.5px solid transparent;text-decoration:none;color:var(--ink-soft);font:500 14px/1.4 var(--sans);transition:all .2s}
aside.toc ol a:hover{color:var(--ink)}
aside.toc ol a.active{color:var(--bronze);border-left-color:var(--bronze)}
aside.toc .toc-cta{margin-top:28px;background:var(--sand);border-radius:18px;padding:18px}
aside.toc .toc-cta span{display:block;font:600 15px/1.35 var(--serif);margin-bottom:12px}
@media(max-width:1020px){aside.toc{display:none}}

article{min-width:0}
article section{padding:8px 0 56px}
article h2{font-size:clamp(28px,3.4vw,38px);font-weight:600;margin:0 0 18px}
article h2 .num{display:block;font:600 13px var(--sans);letter-spacing:.16em;color:var(--gold);margin-bottom:10px;text-transform:uppercase}
article p{margin:0 0 18px;max-width:720px}
.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid rgba(185,154,111,.12)}

.callout{display:flex;gap:16px;padding:22px 24px;border-radius:18px;margin:26px 0;max-width:760px}
.callout .ic{flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center}
.callout .ic svg{width:20px;height:20px}
.callout p{margin:0}
.callout.info{background:var(--sand)}
.callout.info .ic{background:var(--gold);color:#fff}
.callout.warn{background:#F7EDE6;border:1px solid rgba(164,121,74,.25)}
.callout.warn .ic{background:var(--bronze);color:#fff}

.how{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0}
.how div{padding:20px;border-radius:18px;background:var(--white);border:1px solid rgba(185,154,111,.15)}
.how svg{width:28px;height:28px;color:var(--bronze);margin-bottom:10px}
.how b{display:block;font:600 16px var(--serif);margin-bottom:4px}
.how span{font-size:14px;color:var(--ink-soft);line-height:1.5}
@media(max-width:640px){.how{grid-template-columns:1fr}}

.quiz-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin:28px 0 22px;padding:18px 22px;border-radius:18px;background:var(--ink);color:#fff}
.quiz-head p{margin:0;color:#fff;font:500 15px/1.5 var(--sans)}
.quiz-head p b{color:#E4CFAF}
.score{display:flex;align-items:center;gap:12px;font:600 14px var(--sans)}
.dots{display:flex;gap:6px}
.dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.2);transition:background .3s}
.dots i.on{background:var(--gold)}
.myths{display:grid;gap:16px}
.myth{padding:26px 28px;transition:transform .25s,box-shadow .25s}
.myth:hover{transform:translateY(-2px)}
.myth .tag{font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.myth h3{font-size:22px;font-weight:600;margin:6px 0 16px}
.myth .ask{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.myth .ask small{font:500 14px var(--sans);color:var(--ink-soft);margin-right:4px}
.choice{border:1.5px solid var(--mist);background:var(--paper);color:var(--ink);font:600 14px var(--sans);padding:9px 18px;border-radius:999px;cursor:pointer;transition:all .2s}
.choice:hover{border-color:var(--gold)}
.choice[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.myth .reveal{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s ease}
.myth .reveal>div{overflow:hidden}
.myth.open .reveal{grid-template-rows:1fr}
.myth .verdict{display:inline-flex;align-items:center;gap:8px;margin:20px 0 12px;font:600 14px var(--sans);padding:6px 14px;border-radius:999px}
.verdict.good{background:#E9EFE6;color:var(--ok)}
.verdict.bad{background:#F5E8DD;color:var(--bronze-deep)}
.myth .reveal p{font-size:16px}
.truth{display:flex;gap:12px;align-items:flex-start;background:var(--sand);border-radius:14px;padding:14px 16px;margin-top:4px}
.truth svg{flex:0 0 20px;width:20px;height:20px;color:var(--bronze);margin-top:3px}
.truth p{margin:0;font-size:15.5px}
.myth.open .ask{opacity:.55}
.reveal-all{margin-top:18px;background:none;border:0;color:var(--bronze);font:600 14px var(--sans);cursor:pointer;text-decoration:underline;text-underline-offset:4px}
.result{display:none;margin-top:18px;padding:22px 24px;border-radius:18px;background:linear-gradient(135deg,var(--gold),var(--bronze));color:#fff}
.result.show{display:block;animation:pop .5s ease}
.result h3{color:#fff;font-size:21px;margin-bottom:6px}
.result p{margin:0;color:rgba(255,255,255,.92)}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.science{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0}
.meter{padding:26px}
.meter h3{font-size:17px;margin-bottom:16px}
.bar{height:12px;background:var(--mist);border-radius:99px;overflow:hidden;margin:10px 0 8px}
.bar span{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--gold),var(--bronze));transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.scale{display:flex;justify-content:space-between;font:500 12px var(--sans);color:var(--steel)}
.meter .note{font-size:14px;color:var(--ink-soft);margin:14px 0 0}
.uses{padding:26px}
.uses h3{font-size:17px;margin-bottom:14px}
.uses ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.uses li{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--paper);font:500 15px var(--sans)}
.uses li svg{width:22px;height:22px;color:var(--bronze);flex:0 0 22px}
.why{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 18px}
.why span{font:500 13.5px var(--sans);padding:7px 14px;border-radius:999px;background:var(--white);border:1px dashed rgba(164,121,74,.45)}
@media(max-width:760px){.science{grid-template-columns:1fr}}

.benefits{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:24px 0 34px}
.benefit{padding:22px;display:flex;gap:16px;align-items:flex-start}
.benefit .ic{flex:0 0 48px;height:48px;border-radius:14px;background:var(--sand);display:grid;place-items:center;color:var(--bronze)}
.benefit .ic svg{width:24px;height:24px}
.benefit p{margin:0;font:500 15.5px/1.5 var(--sans)}
@media(max-width:640px){.benefits{grid-template-columns:1fr}}

.tabs{overflow:hidden}
.tablist{display:flex;gap:6px;padding:8px;background:var(--paper);border-bottom:1px solid var(--mist);overflow-x:auto;scrollbar-width:none}
.tablist button{flex:0 0 auto;border:0;background:transparent;font:600 14px var(--sans);color:var(--ink-soft);padding:10px 16px;border-radius:12px;cursor:pointer;transition:all .2s}
.tablist button[aria-selected="true"]{background:var(--white);color:var(--bronze);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.tabpanel{padding:24px 26px}
.tabpanel p{margin:0}
.tabpanel[hidden]{display:none}
.tabpanel .k{display:block;font:600 19px var(--serif);margin-bottom:8px}

.check{padding:10px}
.check label{display:flex;gap:16px;align-items:flex-start;padding:16px 18px;border-radius:16px;cursor:pointer;transition:background .2s}
.check label:hover{background:var(--paper)}
.check input{position:absolute;opacity:0;pointer-events:none}
.check .box{flex:0 0 26px;height:26px;border-radius:8px;border:2px solid var(--gold);display:grid;place-items:center;transition:all .2s;margin-top:1px}
.check .box svg{width:16px;height:16px;color:#fff;opacity:0;transform:scale(.5);transition:all .2s}
.check input:checked+.box{background:var(--bronze);border-color:var(--bronze)}
.check input:checked+.box svg{opacity:1;transform:none}
.check input:focus-visible+.box{outline:3px solid rgba(185,154,111,.45);outline-offset:2px}
.check .txt{font-size:16px}
.check input:checked~.txt{color:var(--ink-soft)}
.check-foot{display:flex;align-items:center;gap:14px;padding:14px 18px 12px;border-top:1px solid var(--mist);margin-top:6px;font:500 14px var(--sans);color:var(--ink-soft)}
.check-foot .bar{flex:1;margin:0;height:8px}

.contra{margin:28px 0 0;padding:24px 26px}
.contra h3{font-size:18px;margin-bottom:6px}
.contra>p{font-size:15px;color:var(--ink-soft);margin:0 0 16px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1.5px solid var(--mist);background:var(--white);font:500 14px var(--sans);color:var(--ink);padding:9px 16px;border-radius:999px;cursor:pointer;transition:all .2s}
.chip:hover{border-color:var(--gold)}
.chip[aria-pressed="true"]{background:#F5E8DD;border-color:var(--bronze);color:var(--bronze-deep)}
.contra-msg{margin-top:16px;padding:14px 16px;border-radius:14px;font:500 15px/1.5 var(--sans);background:#E9EFE6;color:var(--ok);transition:all .3s}
.contra-msg.alert{background:#F5E8DD;color:var(--bronze-deep)}

.conclusion{position:relative;padding:40px;border-radius:28px;background:var(--ink);color:#EDEDED;overflow:hidden}
.conclusion::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(closest-side,rgba(185,154,111,.45),transparent)}
.conclusion h2{color:#fff}
.conclusion p{color:#D6D6D6;position:relative;z-index:1}
.conclusion strong{color:#E4CFAF}
@media(max-width:640px){.conclusion{padding:28px 22px}}

.faq details{border-bottom:1px solid var(--mist)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:20px 4px;font:600 17px var(--serif)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{flex:0 0 32px;height:32px;border-radius:50%;background:var(--sand);display:grid;place-items:center;color:var(--bronze);transition:transform .3s}
.faq details[open] .plus{transform:rotate(45deg)}
.faq details p{padding:0 4px 20px;margin:0;color:var(--ink-soft)}

.cta-band{margin:16px 0 0;padding:48px 0;background:linear-gradient(135deg,var(--sand),#EFE3D2)}
.cta-band .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-band h2{font-size:clamp(26px,3vw,36px);max-width:620px}
.cta-band img{width:64px;height:64px}
.cta-band .l{display:flex;gap:20px;align-items:center}

footer{background:var(--white);border-top:1px solid var(--mist);padding:40px 0 30px;font-size:14px;color:var(--ink-soft)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px}
footer .logo img{height:44px;width:auto}
footer .social{display:flex;gap:10px}
footer .social a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--paper);color:var(--ink);transition:all .2s}
footer .social a:hover{background:var(--bronze);color:#fff}
footer .social svg{width:18px;height:18px}

.wa-float{position:fixed;right:20px;bottom:20px;z-index:55;width:58px;height:58px;border-radius:50%;background:var(--bronze);color:#fff;display:grid;place-items:center;box-shadow:0 12px 28px -8px rgba(124,92,54,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.06)}
.wa-float svg{width:28px;height:28px}

.fade{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.fade.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.fade{opacity:1;transform:none}html{scroll-behavior:auto}}

/* ===== componentes adicionales (compartidos por todos los artículos) ===== */
.how.c4{grid-template-columns:repeat(2,1fr)}
.how.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:640px){.how.c4,.how.c2{grid-template-columns:1fr}}
.tabpanel ul{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:10px}
.tabpanel li{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;background:var(--paper);font-size:15.5px;line-height:1.55}
.tabpanel li svg{flex:0 0 18px;width:18px;height:18px;color:var(--bronze);margin-top:4px}
.tabpanel .callout{margin:16px 0 0}
.ph{padding:26px;margin:26px 0}
.ph h3{font-size:17px;margin-bottom:18px}
.ph-bar{position:relative;height:14px;border-radius:99px;background:linear-gradient(90deg,#C98B5E 0%,#E4CFAF 35%,#E9EFE6 50%,#B9C9D6 65%,#7F97AE 100%)}
.ph-bar i{position:absolute;left:50%;top:50%;width:26px;height:26px;border-radius:50%;background:var(--white);border:3px solid var(--bronze);transform:translate(-50%,-50%);box-shadow:0 4px 12px rgba(0,0,0,.15)}
.ph-scale{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-top:18px;font-size:14px;line-height:1.5}
.ph-scale div:nth-child(2){text-align:center}
.ph-scale div:nth-child(3){text-align:right}
.ph-scale b{display:block;font:600 15px var(--serif);color:var(--ink)}
.ph-scale span{color:var(--ink-soft)}
@media(max-width:640px){.ph-scale{grid-template-columns:1fr}.ph-scale div:nth-child(n){text-align:left}}
.timeline{display:flex;align-items:center;gap:14px;margin:18px 0 0;padding:16px 18px;border-radius:14px;background:var(--sand);font:500 15px/1.5 var(--sans)}
.timeline b{font:700 26px var(--serif);color:var(--bronze);white-space:nowrap}
.map{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.map button{border:1.5px solid var(--mist);background:var(--white);border-radius:14px;padding:12px 14px;font:600 14px var(--sans);color:var(--ink);cursor:pointer;text-align:left;transition:all .2s}
.map button span{display:block;font-weight:500;color:var(--ink-soft);font-size:13.5px;margin-top:2px}
.map button[aria-pressed="true"]{border-color:var(--bronze);background:#F5E8DD}
.map button{position:relative}
.map button span{max-height:0;opacity:0;overflow:hidden;transition:max-height .35s ease,opacity .35s ease}
.map button[aria-pressed="true"] span{max-height:60px;opacity:1}
.map button::after{content:"Toca para ver";position:absolute;right:14px;top:13px;font:500 12px var(--sans);color:var(--steel)}
.map button[aria-pressed="true"]::after{content:""}
.hero-art .badge b{white-space:nowrap}