:root{--blue:#0865cd;--navy:#102f55;--ink:#183650;--muted:#5b7088;--line:#dce5f0;--pale:#f0f6fd}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid #ec981d;outline-offset:5px}a:hover .text-link,.text-link:hover{text-decoration:underline}.wrap{width:min(1240px,calc(100% - 80px));margin:auto}p{margin:0 0 16px}h1,h2,h3{line-height:1.12;margin:0;letter-spacing:-1.5px}h2{font-size:44px;font-weight:750}h3{font-size:22px;letter-spacing:-.6px}.topline{background:var(--navy);color:#dceaff;font-size:11px}.topline>.wrap{display:flex;justify-content:space-between;padding-block:9px}.topline a{color:#fff}.header{display:flex;justify-content:space-between;align-items:center;gap:25px;height:103px}.brand{display:flex;align-items:center;gap:12px;line-height:1;font-size:23px;letter-spacing:-1px;font-weight:800}.brand img{width:54px;height:54px;border-radius:50%}.brand small{display:block;margin-top:9px;letter-spacing:5px;font-size:9px;font-weight:700}.header nav{display:flex;gap:30px;font-size:13px;font-weight:600}.header nav a:hover{color:var(--blue)}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:15px 22px;border:1px solid transparent;border-radius:8px;font-size:13px;font-weight:700;white-space:nowrap;transition:transform .2s,box-shadow .2s}.button:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0a4b8a18}.primary{background:var(--blue);color:#fff}.secondary{background:#fff;color:var(--navy);border-color:#ccdcef}.small{padding:11px 18px;font-size:12px}.hero{background:linear-gradient(115deg,#f1f8ff,#e8f3ff 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13px;display:flex;align-items:center;gap:12px}.lesson-icon{width:37px;height:41px;border-radius:5px;background:#e8f2ff;color:var(--blue);font-family:Georgia,serif;font-size:24px;display:grid;place-items:center}.media-bottom strong{display:block;font-size:12px}.media-bottom div>span{font-size:9px;color:var(--muted)}.media-bottom>a{margin-left:auto;border:1px solid var(--line);padding:4px 11px;border-radius:50%;color:var(--blue)}.floating-resource{position:absolute;bottom:-40px;right:20px;display:flex;align-items:center;gap:12px;background:#fff;padding:16px 20px;box-shadow:0 12px 30px #1b528720;border:1px solid #d2e6fb;border-radius:9px;transform:rotate(-3deg)}.resource-icon{background:var(--blue);color:white;width:37px;height:40px;display:grid;place-items:center;font-size:28px;border-radius:6px}.floating-resource small{display:block;font-size:6px;letter-spacing:1.4px;color:var(--muted)}.floating-resource strong{font-size:12px}.floating-resource 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#15345210}.thumbnail{position:relative;aspect-ratio:1.72;background:#dce7f2;overflow:hidden}.thumbnail img{width:100%;height:100%;object-fit:cover}.video-badge{position:absolute;top:12px;left:12px;background:#fff;border-radius:4px;font-size:7px;letter-spacing:.8px;padding:5px 8px;font-weight:700;color:#244561}.mini-play{position:absolute;bottom:14px;right:14px;width:35px;height:35px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:11px;box-shadow:0 0 0 4px #ffffff66}.video-info{padding:23px}.video-info h3{font-size:21px;min-height:48px}.video-info p{font-size:12px;color:var(--muted);margin:15px 0 22px;min-height:40px}.video-info>span{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:15px;font-size:11px;font-weight:700;color:var(--blue)}.channel-banner{display:flex;align-items:center;gap:20px;padding:26px 30px;margin-top:30px;background:#f0f6fd;border:1px solid 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45px;align-self:center}.pill{display:inline-block;color:var(--blue);background:#e9f3ff;border-radius:4px;font-size:8px;letter-spacing:1.3px;font-weight:700;padding:6px 9px;margin-bottom:20px}.featured-copy h3{font-size:33px;letter-spacing:-1.2px}.featured-copy p{font-size:14px;color:var(--muted);line-height:1.8;margin:20px 0}.featured-copy ul{padding:0;list-style:none;font-size:12px;color:#466482;margin-bottom:27px}.featured-copy li{margin:8px 0}.featured-copy li:before{content:'✓';color:var(--blue);margin-right:10px}.featured-copy>small{display:block;font-size:9px;color:var(--muted);margin-top:12px}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:23px;margin-top:25px}.resource-card{background:#fff;border:1px solid #dce6f1;border-radius:9px;padding:27px;position:relative;transition:transform 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1fr;gap:90px;align-items:center}.about-visual{background:linear-gradient(145deg,#eff8ff,#e4f0fc);border-radius:12px;padding:45px;position:relative;overflow:hidden}.about-visual:after{content:'✦';position:absolute;right:-30px;bottom:0;font-size:280px;line-height:1;color:#9bc5ef40}.about-visual>img{width:90px;height:90px;border-radius:50%;mix-blend-mode:multiply}.about-visual>p{font-size:43px;line-height:1.1;letter-spacing:-2px;font-weight:700;margin:30px 0}.about-visual em{font-style:normal;color:var(--blue)}.about-visual>span{font-size:7px;letter-spacing:2px;color:#577695}.about-copy .eyebrow{margin-bottom:15px}.about-copy>p:not(.eyebrow){font-size:14px;color:var(--muted);margin:23px 0}.principle{display:flex;gap:20px;border-top:1px solid var(--line);padding:18px 0}.principle>b{font-size:10px;color:var(--blue);margin-top:3px}.principle h3{font-size:17px;letter-spacing:-.3px}.principle p{font-size:12px;color:var(--muted);margin:7px 0 0}.final-cta{display:flex;align-items:center;justify-content:space-between;gap:30px;border-radius:13px;background:linear-gradient(115deg,#073f92,#0677dc);color:#fff;padding:47px 45px;position:relative;overflow:hidden}.final-cta:after{content:'';width:350px;height:350px;border:1px solid #ffffff22;border-radius:50%;position:absolute;right:-60px;top:-150px;pointer-events:none}.final-cta .eyebrow{color:#9fd4ff;margin-bottom:15px}.final-cta h2{font-size:35px}.final-cta p:last-child{font-size:13px;color:#bfdcfa;margin:15px 0 0}.final-cta .actions{margin:0}.white{background:#fff;color:#065ab5}.glass{border:1px solid #83b4ec;background:#ffffff0c;color:#fff}.faq{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.faq .eyebrow{margin-bottom:15px}.faq>div>p:last-child{font-size:13px;color:var(--muted);margin-top:22px}.faq a{color:var(--blue)}.questions details{border-bottom:1px solid var(--line);padding:19px 0}.questions details:first-child{border-top:1px solid var(--line)}.questions summary{font-size:14px;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:15px;font-weight:600}.questions summary::-webkit-details-marker{display:none}.questions summary:after{content:'+';font-size:23px;font-weight:400;color:var(--blue)}.questions details[open] summary:after{content:'−'}.questions details p{font-size:13px;color:var(--muted);margin:15px 25px 0 0}.questions a{text-decoration:underline}footer{background:#f3f7fc;border-top:1px solid var(--line)}.footer-main{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-block:35px}.footer-main .brand{font-size:19px}.footer-main .brand img{width:48px;height:48px}.footer-main p{font-size:11px;color:var(--muted);margin:0}.footer-main>div{display:flex;gap:25px;font-size:11px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-block:17px;font-size:9px;color:var(--muted)}.skip{position:absolute;top:-80px;background:#fff;color:var(--blue);padding:10px;z-index:20}.skip:focus{top:0}
@media(min-width:1500px){.hero-grid{padding-block:95px 110px}}@media(max-width:1100px){.wrap{width:calc(100% - 48px)}.hero-grid{gap:35px}.hero-proof{gap:12px;font-size:9px}.hero .button{padding:13px 16px;font-size:11px}.brand{font-size:20px}.header nav{gap:20px;font-size:12px}.screen-caption strong{font-size:29px}.hero .eyebrow{font-size:8px}.hero h1{font-size:57px}.featured-copy{padding:32px}.featured-copy h3{font-size:29px}.about{gap:50px}.final-cta{flex-wrap:wrap}.video-info{padding:20px}.video-info h3{font-size:19px}.subject-strip b{font-size:12px}.channel-banner .button{padding:13px 16px}.footer-main p{display:none}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.topline{font-size:9px}.header{height:auto;flex-wrap:wrap;padding-block:19px;gap:18px}.header nav{order:3;width:100%;justify-content:center;gap:30px;padding-top:15px;border-top:1px solid var(--line)}.brand{font-size:19px}.brand img{width:45px;height:45px}.brand small{font-size:7px;letter-spacing:4px}.header .small{font-size:10px;padding:10px 12px}.hero-grid{grid-template-columns:1fr;padding-block:42px 75px;gap:35px}.hero h1{font-size:61px;letter-spacing:-3px}.hero .eyebrow{font-size:8px}.lead{font-size:16px;max-width:530px}.hero-proof{font-size:10px;gap:19px;flex-wrap:wrap}.hero .button{font-size:12px;padding:14px 18px}.hero-media{max-width:550px;width:100%;margin:5px auto 15px}.screen-caption strong{font-size:34px}.floating-resource{bottom:-37px;right:10px}.subject-strip{flex-wrap:wrap;justify-content:center;gap:12px 18px;padding-block:23px;min-height:0}.subject-strip>span{width:100%;text-align:center;font-size:7px}.subject-strip b{font-size:11px}.subject-strip i{font-size:10px}.section{padding-block:55px}h2{font-size:35px;letter-spacing:-1.4px}.section-heading{display:block;margin-bottom:28px}.section-heading>div:last-child{margin-top:22px}.section-heading>div:last-child>p{font-size:13px}.video-grid{grid-template-columns:1fr;gap:20px}.video-card{display:grid;grid-template-columns:42% 58%}.thumbnail{height:100%;aspect-ratio:auto;min-height:215px}.thumbnail img{object-fit:cover}.video-info h3{font-size:20px;min-height:0}.video-info p{font-size:12px;min-height:0;margin:12px 0 18px}.video-badge{font-size:6px;left:8px;top:8px;padding:4px 6px}.mini-play{width:30px;height:30px;right:12px}.channel-banner{padding:22px;gap:15px;flex-wrap:wrap}.channel-banner h3{font-size:17px}.channel-banner>div{flex:1}.channel-banner .button{margin-left:65px}.featured-product{grid-template-columns:1fr}.book-stage{min-height:390px}.featured-copy{padding:30px 25px}.featured-copy h3{font-size:30px}.resource-grid{grid-template-columns:1fr;gap:15px}.resource-card{padding:25px;padding-left:105px;position:relative}.resource-glyph{position:absolute;left:25px;top:30px;margin:0}.resource-card h3{font-size:23px;margin-top:15px}.resource-card p{min-height:0;margin:14px 0 20px}.about{grid-template-columns:1fr;gap:35px}.about-visual{padding:35px}.about-visual>p{font-size:44px}.about-copy h2{font-size:36px}.final-cta{padding:35px 27px}.final-cta h2{font-size:33px}.final-cta .button{font-size:11px;padding:13px 16px}.faq{grid-template-columns:1fr;gap:30px}.footer-main{flex-wrap:wrap;padding-block:30px}.footer-main>div{width:100%;justify-content:space-between}.footer-bottom{font-size:8px}.footer-bottom>span:nth-child(2){display:none}}
@media(max-width:420px){.topline .wrap>span{font-size:8px}.topline a{font-size:8px}.brand{font-size:16px;gap:8px}.brand img{width:40px;height:40px}.header .small{font-size:9px;padding:9px}.header nav{gap:25px;font-size:11px}.hero h1{font-size:51px}.hero-proof{gap:11px;font-size:9px}.hero .button{font-size:11px;padding:13px 14px}.hero .actions{gap:9px}.screen-caption strong{font-size:27px}.screen-caption{bottom:20px;left:18px}.play{width:48px;height:48px;right:22px;top:30%;font-size:15px}.media-label{font-size:6px;letter-spacing:1px}.media-label>span:last-child{font-size:6px}.media-bottom div>span{font-size:8px}.floating-resource{padding:12px 15px;gap:9px}.floating-resource strong{font-size:11px}.floating-resource b{margin-left:5px}.subject-strip{gap:10px 12px}.subject-strip b{font-size:9px}.video-card{display:block}.thumbnail{aspect-ratio:1.7;min-height:0}.video-badge{font-size:7px;top:12px;left:12px}.video-info{padding:22px}.video-info h3{font-size:23px}.video-info p{font-size:13px}.channel-banner{padding:20px}.channel-symbol{width:40px;height:40px}.channel-banner .button{margin-left:0;width:100%}.featured-copy h3{font-size:27px}.featured-copy .button{font-size:11px;padding:13px 15px}.resource-card{padding:25px}.resource-glyph{position:static;margin:22px 0}.resource-card h3{font-size:25px}.resource-card p{max-width:280px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Navegación fija y accesos principales · v3 */
html{scroll-padding-top:125px}.header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 0 0 100vmax #fff;clip-path:inset(0 -100vmax -15px);border-bottom:1px solid #e5edf6}.header-actions{display:flex;align-items:center;gap:10px}.channel-button{background:#ecf4ff;color:#075ab7;border-color:#bdd5f1}.hero .store-button{background:#102f55;color:#fff;border-color:#102f55}.hero .actions .button{padding:17px 24px;font-size:14px;box-shadow:0 8px 18px #0b509b14}.final-cta .store-button{background:#fff;color:#075ab7;border-color:#fff}.header nav{gap:23px}
@media(max-width:1100px){.header{gap:15px}.header-actions{gap:7px}.header-actions .button{font-size:10px;padding:11px 12px}.header nav{gap:16px}.hero .actions .button{padding:15px 17px;font-size:12px}}
@media(max-width:760px){html{scroll-padding-top:150px}.header{padding-block:13px;gap:12px}.header nav{padding-top:10px;gap:28px}.header-actions{gap:7px}.header-actions .button{font-size:10px;padding:10px 12px}.header .brand{font-size:17px}.header .brand img{width:40px;height:40px}.hero .actions .button{padding:16px 20px;font-size:13px}}
@media(max-width:520px){.header .brand{font-size:14px;gap:7px}.header .brand small{font-size:6px;letter-spacing:3px}.header .brand img{width:34px;height:34px}.header-actions .button{font-size:9px;padding:10px 9px;gap:5px}.header-actions .channel-button{font-size:9px;gap:0}.hero .actions{display:grid;grid-template-columns:1fr 1fr}.hero .actions .button{padding:16px 10px;font-size:12px}}
@media(max-width:360px){.header .brand{font-size:12px}.header-actions .button{padding:9px 7px}.header .brand img{width:29px;height:29px}.hero .actions .button{font-size:10px}}

/* Accesos destacados en las cabeceras de sección · v4 */
.section-heading .section-cta{font-size:15px;padding:19px 27px;min-height:62px;border-radius:9px;box-shadow:0 8px 20px #0a4b8a20;gap:12px;margin-top:8px}.videos-cta{background:#0865cd;color:#fff;border-color:#0865cd}.shop-cta{background:#102f55;color:#fff;border-color:#102f55}.section-heading .section-cta:hover{box-shadow:0 12px 25px #0a4b8a30;transform:translateY(-3px)}
@media(max-width:760px){.section-heading .section-cta{font-size:15px;padding:19px 23px;min-height:62px;width:100%;white-space:normal;text-align:center}.section-heading>div:last-child{max-width:100%}}

/* YouTube en rojo; tienda en azul · v5 */
.button.youtube-button,.hero .button.youtube-button,.channel-banner .button.youtube-button,.final-cta .button.youtube-button,.section-heading .button.youtube-button{background:#d90000;color:#fff;border-color:#d90000;box-shadow:0 7px 18px #d900001c}.button.youtube-button:hover{background:#b80000;border-color:#b80000;box-shadow:0 10px 23px #d9000028}.mini-play{background:#d90000}.play{color:#d90000}.channel-symbol{background:#d90000;color:#fff;border-color:#d90000}

/* Identidad y navegación renovadas · v6 */
.site-header{position:sticky;top:0;z-index:100;background:#fffffffa;border-bottom:1px solid #dce7f4;box-shadow:0 4px 20px #173e6c08;backdrop-filter:blur(14px)}.header-inner{min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:35px}.main-brand{gap:14px;letter-spacing:-.8px;flex-shrink:0}.main-brand img{height:64px;width:64px;border-radius:50%;box-shadow:0 0 0 5px #f0f7ff}.brand-name{display:block;font-size:25px;line-height:1.05;font-weight:800}.brand-name>strong{display:block;font-size:23px;letter-spacing:-.5px;margin-top:4px;font-weight:500;color:#0964c8}.brand-dot{color:#0964c8}.header-inner nav{display:flex;gap:5px;background:#f1f5fb;border:1px solid #e5ecf5;padding:5px;border-radius:10px}.header-inner nav a{font-size:12px;font-weight:700;padding:10px 15px;border-radius:6px;white-space:nowrap;transition:background .2s,color .2s}.header-inner nav a:hover,.header-inner nav a:focus-visible{background:#fff;color:#0865cd;box-shadow:0 2px 6px #214b7510}.header-inner .header-actions{gap:10px}.header-inner .header-actions .button{padding:13px 19px;font-size:12px;min-height:46px;border-radius:8px}.header-inner .channel-button:before{content:none}.header-inner .channel-button{font-size:12px;gap:8px}.header-inner .primary{box-shadow:0 7px 18px #0865cd18}
@media(max-width:1100px){.header-inner{gap:20px;min-height:94px}.main-brand img{width:53px;height:53px}.brand-name{font-size:22px}.brand-name>strong{font-size:20px}.header-inner nav a{padding:9px 11px;font-size:11px}.header-inner .header-actions .button{padding:12px 14px;font-size:11px}}
@media(max-width:850px){.header-inner{gap:15px;flex-wrap:wrap;padding-block:17px 12px}.header-inner nav{order:3;width:100%;justify-content:center;background:#f4f7fc;border:none;padding:3px}.header-inner nav a{flex:1;text-align:center;padding:9px 12px}.header-inner .header-actions{margin-left:auto}.main-brand img{width:48px;height:48px}.brand-name{font-size:21px}.brand-name>strong{font-size:19px}.header-inner .header-actions .button{min-height:43px}.hero .eyebrow{margin-top:5px}html{scroll-padding-top:155px}}
@media(max-width:520px){.header-inner{gap:13px;padding-top:14px}.main-brand{gap:10px}.main-brand img{width:42px;height:42px;box-shadow:0 0 0 3px #f0f7ff}.brand-name{font-size:17px}.brand-name>strong{font-size:16px;margin-top:3px}.header-inner .header-actions{gap:6px}.header-inner .header-actions .button{font-size:10px;padding:10px 10px;min-height:40px;gap:5px}.header-inner .header-actions .button>span:last-child{display:none}.header-inner nav a{font-size:11px;padding:8px}.header-inner nav{margin-top:0}}
@media(max-width:360px){.main-brand img{width:33px;height:33px}.brand-name{font-size:15px}.brand-name>strong{font-size:14px}.main-brand{gap:8px}.header-inner .header-actions .button{padding:9px 8px;font-size:9px}.header-inner .header-actions .button>span:first-child{display:none}}

/* Cursos, navegación móvil y aviso informativo · v7 */
button{font:inherit;cursor:pointer}.menu-toggle{display:none}.course-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.course-card{border:1px solid #dce7f4;border-radius:12px;overflow:hidden;background:#fff}.course-card>img{width:100%;height:220px;object-fit:cover}.course-card>div{padding:30px}.course-card h3{font-size:31px;margin-bottom:17px}.course-card p{font-size:14px;color:var(--muted)}.course-card .actions{margin-top:23px}.course-card .pill{margin-bottom:15px}.courses{border-bottom:1px solid var(--line)}.legal-links{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.cookie-reopen{background:none;border:0;padding:0;color:inherit;font-size:inherit;text-decoration:underline}.cookie-notice{position:fixed;z-index:200;bottom:20px;left:50%;transform:translateX(-50%);width:min(1000px,calc(100% - 36px));background:#fff;border:1px solid #cedef0;border-radius:12px;padding:24px;display:flex;align-items:center;gap:28px;box-shadow:0 10px 55px #12375d33}.cookie-notice[hidden]{display:none}.cookie-notice strong{font-size:17px}.cookie-notice p{font-size:12px;color:var(--muted);margin:8px 0 0}.cookie-notice a{text-decoration:underline;color:var(--blue)}.cookie-notice .button{flex-shrink:0;cursor:pointer}.legal-page{max-width:900px}.legal-page h1{font-size:45px}.legal-page h2{font-size:29px;margin:45px 0 22px}.legal-page h3{font-size:20px;margin:26px 0 15px}.legal-page p{font-size:15px;line-height:1.8}.legal-page a:not(.button){text-decoration:underline;color:var(--blue)}.draft-notice{background:#fff3d5;border-left:4px solid #c28b1d;padding:20px;margin-top:25px}.storage-info{padding:20px;background:#edf5ff;border-radius:8px}.storage-info p{margin:10px 0 0}
@media(max-width:850px){.menu-toggle{display:flex;align-items:center;gap:8px;background:#edf4fe;border:1px solid #cddff3;border-radius:7px;color:#123d6c;padding:10px 13px;font-size:12px;font-weight:700;order:2}.header-inner .header-actions{order:1;margin-left:auto}.header-inner #main-menu{display:none;order:3}.header-inner #main-menu.is-open{display:flex;flex-direction:column;align-items:stretch}.header-inner #main-menu a{padding:13px}.header-inner{position:relative}.course-grid{grid-template-columns:1fr}.course-card{display:grid;grid-template-columns:38% 62%}.course-card>img{height:100%;object-fit:cover}.course-card>div{padding:25px}.course-card h3{font-size:27px}}
@media(max-width:600px){.header-inner .header-actions{order:3;width:100%;margin:0;display:grid;grid-template-columns:1fr 1fr}.header-inner .header-actions .button{font-size:12px;min-height:42px}.header-inner .menu-toggle{margin-left:auto}.header-inner #main-menu{order:4}.cookie-notice{bottom:12px;padding:20px;gap:16px;flex-direction:column;align-items:stretch;max-height:65vh;overflow:auto}.cookie-notice .button{width:100%;padding:12px}.course-card{display:block}.course-card>img{height:200px}.course-card>div{padding:25px}.legal-links{gap:12px}.legal-page h1{font-size:35px}.site-header .brand{font-size:17px}}