:root{
  --plomo:#2E3236; --plomo-2:#3A3F45; --plomo-3:#4A5058;
  --claro:#F2F1EE; --perla:#B8BDC4; --grafito:#5F646B;
  --cian:#22D3EE; --cian-osc:#0891B2; --cian-ink:#0B1A1F; --hielo:#93C5FD;
  --r:12px; --max:1120px; --read:720px;
  --f-head:"Sora",system-ui,sans-serif; --f-body:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--plomo);color:var(--claro);font-family:var(--f-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--cian);outline-offset:3px}
h1,h2,h3{font-family:var(--f-head);font-weight:600;line-height:1.25;margin:0 0 .6em;letter-spacing:-.01em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.read{max-width:var(--read);margin:0 auto;padding:0 20px}
.eyebrow{font-family:var(--f-head);font-weight:300;font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;color:var(--cian);display:block;margin-bottom:14px}
.muted{color:var(--perla)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--f-head);font-weight:600;font-size:.95rem;text-decoration:none;padding:13px 20px;border-radius:10px;border:1px solid transparent}
.btn--primary{background:var(--cian);color:var(--cian-ink)}
.btn--primary:hover{background:#4FE0F5}
.btn--ghost{border-color:var(--hielo);color:var(--hielo)}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(46,50,54,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--plomo-3)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-txt{font-family:var(--f-head);line-height:1.05}
.brand-txt b{display:block;font-weight:600;font-size:1.05rem}
.brand-txt span{display:block;font-weight:300;font-size:.8rem;letter-spacing:.06em;color:var(--cian)}
.hdr nav{display:flex;align-items:center;gap:22px}
.hdr nav a{text-decoration:none;font-size:.93rem;color:var(--perla)}
.hdr nav a:hover{color:var(--claro)}
.hdr nav .btn{color:var(--cian-ink);padding:10px 16px}
@media (max-width:640px){.hdr nav .hide-sm{display:none}}

/* blog index */
.blog-hero{padding:clamp(56px,8vw,96px) 0 32px}
.blog-hero h1{font-size:clamp(2rem,4.5vw,2.8rem)}
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding-bottom:96px}
@media (max-width:960px){.posts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.posts{grid-template-columns:1fr}}
.post-card{overflow:hidden;background:var(--plomo-2);border:1px solid var(--plomo-3);border-radius:var(--r);padding:26px;text-decoration:none;display:flex;flex-direction:column;transition:border-color .15s}
.post-card:hover{border-color:var(--cian)}
.post-card .cat{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--hielo);margin-bottom:12px}
.post-card h2,.post-card h3{font-size:1.15rem;margin-bottom:10px}
.post-card p{color:var(--perla);font-size:.93rem;margin:0 0 18px;flex:1}
.post-card .more{color:var(--cian);font-weight:500;font-size:.9rem}
.post-card--soon{opacity:.55;pointer-events:none}

/* article */
.crumbs{font-size:.85rem;color:var(--perla);padding:28px 0 0}
.crumbs a{text-decoration:none;color:var(--hielo)}
.art-head{padding:28px 0 8px}
.art-head h1{font-size:clamp(1.9rem,4.2vw,2.6rem)}
.meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.88rem;color:var(--perla);margin:4px 0 0}
.tldr{background:var(--plomo-2);border:1px solid var(--plomo-3);border-left:3px solid var(--cian);border-radius:0;padding:20px 22px;margin:32px 0}
.tldr strong{font-family:var(--f-head);display:block;margin-bottom:6px;color:var(--cian);font-size:.9rem;letter-spacing:.04em}
.tldr p{margin:0}
.prose{padding-bottom:40px}
.prose h2{font-size:1.5rem;margin-top:2em}
.prose h3{font-size:1.15rem;margin-top:1.6em}
.prose p,.prose li{color:#D9DCE0}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:.5em}
.prose strong{color:var(--claro)}
.prose a{color:var(--hielo)}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.93rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--plomo-3);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--plomo-2);font-family:var(--f-head);font-weight:600}
.steps-diagram{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:1.4em 0}
.steps-diagram span{background:var(--plomo-2);border:1px solid var(--plomo-3);border-radius:10px;padding:10px 14px;font-size:.9rem}
.steps-diagram i{color:var(--cian);font-style:normal}
.faq details{border-bottom:1px solid var(--plomo-3);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:16px 32px 16px 0;font-family:var(--f-head);font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:1.5rem;font-weight:300;color:var(--cian)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:0 0 16px}
.author{display:flex;gap:16px;align-items:center;border-top:1px solid var(--plomo-3);border-bottom:1px solid var(--plomo-3);padding:24px 0;margin:40px 0}
.author img{width:64px;height:64px;border-radius:50%;object-fit:cover;flex:none;background:var(--plomo-2)}
.author p{margin:0;font-size:.92rem;color:var(--perla)}
.author b{font-family:var(--f-head);color:var(--claro);display:block}
.cta-box{background:var(--plomo-2);border:1px solid var(--plomo-3);border-radius:var(--r);padding:clamp(24px,4vw,36px);text-align:center;margin:0 0 72px}
.cta-box h2{font-size:1.4rem;margin-top:0}
.cta-box p{color:var(--perla);max-width:520px;margin:0 auto 20px}
.related{padding-bottom:96px}
.related h2{font-size:1.25rem;margin-bottom:18px}

/* footer */
.ftr{border-top:1px solid var(--plomo-3);padding:40px 0;font-size:.88rem;color:var(--perla)}
.ftr .wrap{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center}
.ftr nav{display:flex;flex-wrap:wrap;gap:8px 22px}
.ftr a{text-decoration:none}.ftr a:hover{color:var(--claro)}
@media (max-width:560px){.prose table{font-size:.84rem}.prose th,.prose td{padding:8px}}
.post-card .cover{display:block;width:calc(100% + 52px);max-width:none;height:auto;aspect-ratio:1200/630;margin:-26px -26px 20px;object-fit:cover}
.art-cover{display:block;width:100%;height:auto;aspect-ratio:1200/630;border-radius:var(--r);margin:24px 0 0}