:root{--bg:#F5F7FB;--surface:#fff;--ink:#0B1530;--muted:#55627F;--line:#E0E6F0;--green:#0A8F5B;--green-soft:#E2F6EC;--cta:#2BD98B;--cta-ink:#04200F;--mark:#FFC83D;--night:#0A1330;--nline:rgba(255,255,255,.13);--nmuted:#A5B4D4;--shadow:0 1px 2px rgba(11,21,48,.06),0 18px 40px -18px rgba(11,21,48,.25);--display:"Inter Tight","Arial Narrow",system-ui,sans-serif;--body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.7;-webkit-text-size-adjust:100%}
a{color:var(--green)}p{margin:0 0 1.1em}
h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.03em;font-weight:800;margin:0}
.wrap{width:min(1100px,100% - 40px);margin-inline:auto}
:focus-visible{outline:3px solid var(--cta);outline-offset:3px;border-radius:6px}
header.nav{position:sticky;top:0;z-index:30;background:rgba(10,19,48,.94);backdrop-filter:blur(12px);color:#fff;border-bottom:1px solid var(--nline)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:#fff;font:800 1.5rem var(--display);letter-spacing:-.04em}
.logo svg{width:32px;height:32px}
.nav nav{display:flex;align-items:center;gap:1.4rem}
.nav nav a{text-decoration:none;font-weight:500;color:var(--nmuted);font-size:.97rem}
.nav nav a:hover,.nav nav a[aria-current]{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;font:700 1rem/1 var(--body);padding:1rem 1.5rem;border-radius:12px;background:var(--cta);color:var(--cta-ink)!important;text-decoration:none;border:2px solid var(--cta)}
.nav nav a.btn{padding:.7rem 1.1rem;font-size:.92rem;color:var(--cta-ink)}
.hero{background:var(--night);color:#fff;padding:56px 0 52px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem)}.hero p{color:var(--nmuted);max-width:38em;margin:14px 0 0;font-size:1.1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;padding:44px 0 70px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink);transition:transform .15s}
.card:hover{transform:translateY(-3px)}
.card h2{font-size:1.35rem}.card p{color:var(--muted);font-size:1rem;margin:0}
.tag{align-self:flex-start;background:var(--green-soft);color:var(--green);font:700 .75rem var(--body);padding:.3rem .7rem;border-radius:99px;letter-spacing:.02em}
.meta{color:var(--muted);font-size:.88rem;margin-top:auto}
article.post{background:var(--surface);width:min(760px,100% - 32px);margin:40px auto 30px;padding:clamp(24px,5vw,52px);border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}
article.post h1{font-size:clamp(1.9rem,4.5vw,2.8rem);margin:12px 0 10px}
article.post h2{font-size:1.5rem;margin:1.8em 0 .6em}
article.post ul,article.post ol{padding-left:1.3em;margin:0 0 1.2em}article.post li{margin-bottom:.4em}
article.post .lead{font-size:1.15rem;color:var(--muted)}
.note{background:#FFF7DB;border-left:4px solid var(--mark);padding:14px 18px;border-radius:8px;font-size:.96rem;margin:1.4em 0}
.cta{background:var(--night);color:#fff;border-radius:16px;padding:28px;margin-top:2em}
.cta h2{margin:0 0 8px!important;font-size:1.4rem!important;color:#fff}.cta p{color:var(--nmuted)}
.crumb{width:min(760px,100% - 32px);margin:26px auto 0;font-size:.92rem}
footer{background:var(--night);color:var(--nmuted);padding:44px 0 52px;font-size:.92rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:18px 40px;justify-content:space-between}
footer p{max-width:46em;margin:10px 0 0}footer a{color:#fff;margin-right:18px;text-decoration:none}
@media(max-width:760px){.nav nav a:not(.btn){display:none}body{font-size:17px}}

.sec{padding:46px 0 10px}.sec h2.t{font-size:clamp(1.6rem,3.5vw,2.2rem);margin-bottom:6px}.sec p.sub{color:var(--muted);margin:0 0 22px}
.sechead{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.sechead a.all{font-weight:700;text-decoration:none}
.carr{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 22px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.carr .card{flex:0 0 min(320px,82vw);scroll-snap-align:start}
.arrows{display:flex;gap:8px}.arrows button{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:1.2rem;cursor:pointer}
.arrows button:hover{border-color:var(--ink)}
.cursos{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;padding:6px 0 70px}
.curso{background:var(--night);color:#fff;border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:12px;text-decoration:none;box-shadow:var(--shadow)}
.curso:hover{transform:translateY(-3px)}.curso h3{font-size:1.4rem}.curso p{color:var(--nmuted);font-size:1rem;margin:0}
.curso .n{font:800 2.4rem var(--display);color:var(--cta)}
.curso .go{margin-top:auto;font-weight:700;color:var(--cta)}
.tag.gratis{background:var(--mark);color:#1A1300}
.lesson{border-top:1px solid var(--line);margin-top:2em;padding-top:.4em}
.ej{background:var(--green-soft);border-radius:10px;padding:14px 18px;margin:1.2em 0;font-size:.97rem}