:root{
  --ink:#17312f;--muted:#5f7471;--brand:#0b6b68;--brand-dark:#07504e;
  --brand-soft:#eaf6f4;--accent:#e8b44b;--paper:#fbfcfb;--white:#fff;
  --line:#dce8e5;--shadow:0 18px 50px rgba(16,58,55,.10);--radius:20px;
  --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.62}
a{color:var(--brand);text-underline-offset:3px}
img{max-width:100%}
.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:99;background:#fff;padding:10px;border-radius:8px}
.announce{background:#073f3d;color:#fff;font-size:.93rem}.announce .wrap{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;padding:9px 0}
.header{position:sticky;top:0;z-index:30;background:rgba(251,252,251,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,229,.85)}
.nav{display:flex;align-items:center;gap:24px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:-.02em}
.brand-mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--brand);color:#fff;font-weight:900}
.brand small{display:block;color:var(--muted);font-size:.72rem;font-weight:700;letter-spacing:.02em}
.links{margin-left:auto;display:flex;gap:20px;align-items:center}.links a{text-decoration:none;color:var(--ink);font-weight:700;font-size:.94rem}.links a:hover{color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:12px;background:var(--brand);color:#fff;text-decoration:none;font-weight:800;border:1px solid var(--brand);transition:.2s transform,.2s background}
.btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn.secondary{background:#fff;color:var(--brand);border-color:#b9d9d4}
.hero{padding:78px 0 64px;background:
 radial-gradient(circle at 85% 20%,rgba(11,107,104,.12),transparent 31%),
 linear-gradient(180deg,#fff 0%,#f5faf8 100%);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);gap:54px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
h1,h2,h3{line-height:1.08;letter-spacing:-.035em;margin-top:0}
h1{font-size:clamp(2.65rem,6vw,5.3rem);max-width:900px;margin:.28em 0 .3em}
h2{font-size:clamp(2rem,4vw,3.15rem);margin-bottom:.45em}
h3{font-size:1.22rem;margin-bottom:.4em}
.lede{font-size:clamp(1.08rem,2vw,1.28rem);color:#496360;max-width:760px;margin:0 0 25px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 18px}
.proof-row{display:flex;gap:16px;flex-wrap:wrap;color:#48615e;font-size:.93rem;font-weight:700}
.proof-row span::before{content:"✓";color:var(--brand);font-weight:950;margin-right:6px}
.app-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow)}
.app-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.status{font-size:.76rem;font-weight:900;color:var(--brand);background:var(--brand-soft);padding:6px 9px;border-radius:999px}
.question{font-size:1.03rem;font-weight:800;margin:12px 0}.option{display:flex;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;margin:8px 0;background:#fff}.option.good{border-color:#8dc9c1;background:#f1faf8}.letter{font-weight:900;color:var(--brand)}
.mini-progress{height:7px;background:#edf2f1;border-radius:10px;overflow:hidden;margin-top:18px}.mini-progress i{display:block;width:62%;height:100%;background:var(--brand)}
.section{padding:84px 0}.section.alt{background:#fff;border-block:1px solid var(--line)}
.section-head{max-width:790px;margin-bottom:34px}.kicker{color:var(--brand);font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}.alt .card{background:var(--paper)}
.icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--brand-soft);font-weight:950;color:var(--brand);margin-bottom:18px}
.card p{color:var(--muted);margin-bottom:0}
.method{counter-reset:step}.step{position:relative;padding-left:64px;min-height:54px;margin:28px 0}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:#fff;font-weight:900}
.trust{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}.trust-box{border-radius:var(--radius);background:#0a4f4c;color:#fff;padding:30px}.trust-box p{color:#d8e8e6}.trust-box ul{padding-left:20px}
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.data{padding:20px;border-radius:16px;background:#fff;border:1px solid var(--line)}.data b{display:block;font-size:1.65rem;line-height:1.1}.data span{font-size:.87rem;color:var(--muted)}
.notice{padding:20px 22px;border-left:4px solid var(--accent);background:#fff8e9;border-radius:0 12px 12px 0}
.product{background:linear-gradient(135deg,#073f3d,#0b6b68);color:#fff;border-radius:30px;padding:42px;display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}.product p{color:#dcecea}.product .btn{background:#fff;color:#0a5552;border-color:#fff}.product-list{display:grid;gap:10px}.product-list div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:13px 15px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:10px 0}.faq summary{cursor:pointer;font-weight:850}.faq p{color:var(--muted)}
.subhero{padding:58px 0 42px;background:#fff;border-bottom:1px solid var(--line)}.subhero h1{font-size:clamp(2.4rem,5vw,4.4rem)}
.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:22px}.breadcrumbs a{text-decoration:none}
.content{max-width:850px}.content h2{margin-top:2.3em;font-size:2rem}.content h3{margin-top:1.6em}.content p,.content li{color:#4d6562}.sourcebox{margin:28px 0;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff}
.footer{padding:38px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}.footer-grid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.mobile-menu{display:none}
.updated{font-size:.86rem;color:var(--muted);margin:14px 0 0}
.mobile-priority{margin:18px 0 12px;padding:13px 15px;border:1px solid #cfe3df;border-radius:12px;background:#f0f8f6;color:#365956;font-size:.92rem}
.mobile-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:12px 0}
.mobile-facts span{padding:10px 11px;border-radius:11px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:.82rem}
.mobile-facts b{display:block;color:var(--ink);font-size:.93rem}
.link-card{display:block;text-decoration:none;color:var(--ink);transition:.18s transform,.18s box-shadow}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.related-links{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.related-links h2{font-size:1.55rem;margin-bottom:.55em}
.admin-facts{grid-template-columns:repeat(3,1fr)}
.ope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:26px 0}
.ope-card{position:relative}.ope-card.featured{border-color:#9dccca;background:#f4fbf9}
.ope-number{font-size:2.4rem;font-weight:950;line-height:1;color:var(--brand);margin-bottom:12px;letter-spacing:-.04em}
.mini-link{display:inline-block;margin-top:14px;color:var(--brand);font-weight:850;font-size:.9rem}
.quick-answer{padding:18px 20px;border:1px solid #b9d9d4;background:var(--brand-soft);border-radius:14px;margin-bottom:24px}
.facts-table{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin:26px 0 44px;background:#fff}
.fact-row{display:grid;grid-template-columns:1fr 1.2fr;grid-template-rows:auto auto;padding:17px 20px;border-bottom:1px solid var(--line);gap:2px 14px}
.fact-row:nth-child(odd){border-right:1px solid var(--line)}
.fact-row:nth-last-child(-n+2){border-bottom:0}
.fact-row span{grid-row:1/3;color:var(--muted);font-size:.88rem;font-weight:750;align-self:center}
.fact-row strong{font-size:1.02rem}.fact-row small{color:var(--muted)}
@media(max-width:900px){
 .hero-grid,.trust,.product{grid-template-columns:1fr}.grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}.data-strip{grid-template-columns:repeat(2,1fr)}
 .ope-grid{grid-template-columns:repeat(2,1fr)}
 .admin-facts{grid-template-columns:repeat(3,1fr)}
 .links{display:none}.hero{padding-top:48px}.app-card{max-width:620px}.product{padding:30px}
 .mobile-facts{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
 .wrap{width:min(100% - 28px,var(--max))}
 .ope-grid{grid-template-columns:1fr}.facts-table{grid-template-columns:1fr}.fact-row{border-right:0!important;border-bottom:1px solid var(--line)!important}.fact-row:last-child{border-bottom:0!important}.announce .wrap{justify-content:flex-start;gap:8px}.announce span{font-size:.82rem}.hero{padding:36px 0 42px}.section{padding:56px 0}h1{font-size:2.35rem;line-height:1.02}.lede{font-size:1.04rem}.data-strip,.admin-facts{grid-template-columns:1fr 1fr}.data{padding:14px}.data b{font-size:1.2rem}.actions .btn{width:100%}.proof-row{display:grid;gap:7px}.app-card{padding:17px;border-radius:18px}.mobile-priority{font-size:.88rem}.mobile-facts{grid-template-columns:1fr 1fr}.mobile-facts span{padding:9px}.subhero{padding:42px 0 30px}.subhero h1{font-size:2.2rem}
}
.fit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0 34px}
.fit-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}
.fit-card h2{font-size:1.35rem;margin:.25em 0 .45em}
.fit-card p{margin:0;color:var(--muted)}
.fit-direct{border-top:4px solid var(--brand)}
.fit-related{border-top:4px solid var(--accent)}
.fit-out{border-top:4px solid #8b9896}
.topic-map{display:grid;gap:10px;margin:26px 0 40px}
.topic-detail{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.topic-detail summary{display:grid;grid-template-columns:82px minmax(0,1fr) auto;gap:14px;align-items:center;cursor:pointer;padding:16px 18px;font-weight:800}
.topic-detail summary:hover{background:#f6faf9}
.topic-num{color:var(--brand);font-weight:950}
.topic-name{color:var(--ink)}
.topic-count{color:var(--muted);font-size:.85rem;font-weight:700;white-space:nowrap}
.topic-body{padding:0 18px 16px;border-top:1px solid var(--line)}
.topic-body p{margin:.85em 0 0}
@media(max-width:900px){.fit-grid{grid-template-columns:1fr}.topic-detail summary{grid-template-columns:72px minmax(0,1fr);}.topic-count{grid-column:2;white-space:normal}}
@media(max-width:560px){.topic-detail summary{grid-template-columns:1fr;gap:5px}.topic-count{grid-column:1}.topic-body{padding:0 14px 14px}}

/* V11 — producto, multimedia y preguntas resueltas */
.app-offer{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}
.app-offer div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.app-offer strong{display:block;font-size:1.15rem;margin-bottom:5px}
.app-offer span{display:block;color:var(--muted);font-size:.9rem}
.app-qr-row{display:grid;grid-template-columns:1fr 150px;gap:20px;align-items:center;margin:28px 0;padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}
.app-qr-row h2{margin:0 0 8px!important;font-size:1.45rem}
.app-qr-row img{width:132px;height:132px}
.app-media-block{margin:42px 0}
.app-media-block h2{margin-top:0!important}
.app-screenshot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.app-screenshot{margin:0;border:1px solid var(--line);border-radius:18px;padding:12px;background:#fff;box-shadow:0 12px 34px rgba(16,58,55,.08)}
.app-screenshot img{display:block;width:100%;height:auto;max-height:660px;object-fit:contain;background:#f4f2ef;border-radius:12px}
.app-screenshot figcaption{padding:10px 4px 2px;color:var(--muted);font-size:.9rem}
.app-admin-preview{max-width:480px;margin:24px auto 42px}
.app-admin-preview img{width:100%;height:auto;display:block;border-radius:16px;border:1px solid var(--line);background:#f4f2ef}
.app-admin-preview p{text-align:center;font-size:.9rem}
.app-battery-preview{margin:42px 0}
.app-battery-preview .app-screenshot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.video-section{margin:48px 0}
.video-poster{position:relative;width:100%;max-width:720px;margin:auto;display:grid;place-items:center;border:0;border-radius:22px;overflow:hidden;background:#0a4f4c;cursor:pointer;padding:0;aspect-ratio:16/9}
.video-poster img{position:absolute;width:100%;height:100%;object-fit:cover;object-position:center 28%;filter:brightness(.55)}
.video-play{position:relative;z-index:2;width:72px;height:72px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--brand);font-size:2rem}
.video-label{position:absolute;z-index:2;bottom:20px;color:#fff;font-weight:850}
.video-frame{width:100%;aspect-ratio:16/9;border:0;border-radius:22px}
.resolved-list{display:grid;gap:16px;margin:28px 0}
.resolved-question{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}
.resolved-question h2{font-size:1.35rem!important;margin:.7em 0 .45em!important}
.resolved-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.resolved-num{font-weight:900;color:var(--brand)}
.resolved-status{font-size:.78rem;font-weight:850;background:var(--brand-soft);padding:5px 9px;border-radius:999px}
.resolved-answer{font-size:1.05rem}
@media(max-width:900px){
 .app-offer{grid-template-columns:1fr}
}
@media(max-width:640px){
 .app-screenshot-grid,.app-battery-preview .app-screenshot-grid{grid-template-columns:1fr}
 .app-media-block{margin:24px 0 32px}
 .app-screenshot{border-radius:14px}
 .app-screenshot img{max-height:none}
 .app-qr-row{display:none}
 .video-poster{aspect-ratio:4/3}
}

/* V12 — test web, respuestas completas, historial y oferta */
.app-offer--4{grid-template-columns:repeat(4,1fr)}
.resolved-full-list{display:grid;gap:12px;margin:28px 0 44px}
.resolved-full{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.resolved-full summary{display:grid;grid-template-columns:120px minmax(0,1fr) 44px;align-items:center;gap:12px;padding:17px 19px;cursor:pointer;font-weight:850}
.resolved-full summary:hover{background:#f6faf9}
.resolved-full[open] summary{border-bottom:1px solid var(--line);background:#f8fbfa}
.resolved-topic{color:var(--muted);font-size:.88rem}
.resolved-key{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:#fff}
.resolved-body{padding:18px 20px 22px}
.resolved-body h2{font-size:1.28rem!important;margin:0 0 16px!important;line-height:1.25}
.answer-options{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:8px}
.answer-options li{display:grid;grid-template-columns:34px 1fr;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:10px}
.option-letter{width:30px;height:30px;display:grid;place-items:center;border-radius:8px;background:var(--brand-soft);color:var(--brand);font-weight:900}
.answer-result{padding:14px 16px;border-radius:12px;background:#eaf6f4;color:#244d49;margin:16px 0}
.question-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--muted);font-size:.84rem}
.source-links{font-size:.9rem}
.quiz-shell{border:1px solid var(--line);border-radius:24px;background:#fff;padding:28px;box-shadow:var(--shadow);margin:28px 0}
.quiz-start{text-align:center;padding:20px 8px}
.quiz-progress{display:grid;gap:8px;margin-bottom:20px}.quiz-progress-text{font-size:.86rem;font-weight:800;color:var(--muted)}
.quiz-progress-bar{height:8px;background:#edf2f1;border-radius:999px;overflow:hidden}.quiz-progress-bar i{display:block;height:100%;width:0;background:var(--brand);transition:width .2s}
.quiz-topic{color:var(--brand);font-size:.82rem;font-weight:900;text-transform:uppercase;letter-spacing:.07em}
.quiz-question{font-size:1.5rem!important;margin:10px 0 20px!important}
.quiz-options{display:grid;gap:10px}.quiz-option{display:grid;grid-template-columns:40px 1fr;gap:12px;text-align:left;align-items:start;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font:inherit;cursor:pointer}
.quiz-option:hover:not(:disabled){border-color:#8dc9c1;background:#f5fbfa}.quiz-option>span{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-weight:900}.quiz-option strong{font-weight:700}
.quiz-option.is-correct{border-color:#66ad9e;background:#edf9f6}.quiz-option.is-wrong{border-color:#d68b82;background:#fff4f1}
.quiz-feedback{margin:18px 0;padding:16px 18px;border-radius:12px}.quiz-feedback.is-ok{background:#edf9f6;border-left:4px solid #4c9c8c}.quiz-feedback.is-bad{background:#fff4f1;border-left:4px solid #c96d60}.quiz-feedback p{margin:.5em 0}.quiz-source{font-size:.9rem}
.quiz-score{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}.quiz-score span{font-size:3.4rem;font-weight:950;color:var(--brand)}.quiz-score strong{font-size:1.25rem}.quiz-breakdown{padding-left:20px}
.history-table-wrap{overflow:auto;margin:20px 0 40px;border:1px solid var(--line);border-radius:16px;background:#fff}.history-table{width:100%;border-collapse:collapse;min-width:780px}.history-table th,.history-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.history-table th{background:#f1f7f5;color:#315956;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}.history-table tbody tr:last-child td{border-bottom:0}
@media(max-width:900px){.app-offer--4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.app-offer--4{grid-template-columns:1fr}.resolved-full summary{grid-template-columns:1fr 44px}.resolved-topic{grid-column:1}.resolved-key{grid-column:2;grid-row:1/3}.quiz-shell{padding:20px}.quiz-question{font-size:1.28rem!important}}

.commercial-note{margin:14px 0 24px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#f8fbfa;color:var(--muted);font-size:.92rem}.commercial-note strong{color:var(--ink)}