:root{
  --ink:#0a0b14;--ink-2:#11131f;--ink-3:#1c1f30;
  --off:#f4f5f9;--paper:#ffffff;
  --blue:#0006ff;--blue-bright:#3a40ff;--blue-lite:#6a70ff;--blue-soft:#ccceff;
  --text:#0b0c16;--mist:#585d72;--mist-2:#8b90a4;
  --line:rgba(11,12,22,.12);--line-soft:rgba(11,12,22,.07);
  --ok:#36cf86;--wa:#25d366;
}
*{margin:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'IBM Plex Sans',sans-serif;background:var(--off);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
.wrap-wide{max-width:1100px;margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible{outline:2px solid var(--blue-lite);outline-offset:3px;border-radius:2px}

/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(244,245,249,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft)}
.site-in{max-width:1100px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:21px;width:auto;display:block}
.brand-tag{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mist);border-left:1px solid var(--line);padding-left:11px}
.site-cta{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-family:'IBM Plex Sans',sans-serif;font-weight:600;font-size:14px;padding:9px 15px;border-radius:2px;box-shadow:3px 3px 0 var(--ink);min-height:40px}
.site-cta:hover{text-decoration:none;background:var(--blue-bright)}
@media(max-width:600px){.brand-tag{display:none}}

/* breadcrumb */
.crumb{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--mist);letter-spacing:.03em;padding-top:34px}
.crumb a{color:var(--mist)}
.crumb a:hover{color:var(--blue)}

/* article */
article{padding:14px 0 20px}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);font-weight:500}
article h1{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:clamp(28px,4.4vw,40px);letter-spacing:-.035em;line-height:1.1;margin:14px 0 0;color:var(--text)}
.meta{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--mist-2);margin-top:16px;letter-spacing:.02em}
.tldr{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:4px;padding:18px 20px;margin:28px 0 8px}
.tldr b{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);display:block;margin-bottom:6px}
.tldr p{font-size:15.5px;color:var(--text);margin:0}
.prose{margin-top:14px}
.prose h2{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:23px;letter-spacing:-.02em;line-height:1.2;margin:38px 0 12px;color:var(--text)}
.prose h3{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:18px;letter-spacing:-.01em;margin:26px 0 8px;color:var(--text)}
.prose p{font-size:17px;color:#33384a;margin:0 0 16px;line-height:1.7}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px;color:#33384a;font-size:17px;line-height:1.7}
.prose li{margin-bottom:8px}
.prose strong{color:var(--text)}
.prose blockquote{border-left:3px solid var(--blue-lite);padding:4px 0 4px 18px;margin:20px 0;color:var(--mist);font-style:italic}

/* faq in article */
.faq{margin-top:40px;border-top:1px solid var(--line);padding-top:28px}
.faq h2{font-family:'IBM Plex Mono',monospace;font-size:21px;font-weight:600;letter-spacing:-.02em;margin-bottom:16px}
.faq-q{margin-bottom:20px}
.faq-q h3{font-family:'IBM Plex Mono',monospace;font-size:16px;font-weight:600;color:var(--text);margin:0 0 5px}
.faq-q p{font-size:15.5px;color:var(--mist);margin:0;line-height:1.6}

/* cta block */
.post-cta{margin:44px 0 10px;background:var(--ink);color:var(--off);border-radius:8px;padding:30px 28px;box-shadow:6px 6px 0 var(--blue-soft)}
.post-cta h2{font-family:'IBM Plex Mono',monospace;color:#fff;font-size:22px;font-weight:600;letter-spacing:-.02em;margin:0 0 8px}
.post-cta p{color:var(--mist-2);font-size:15.5px;margin:0 0 18px}
.post-cta .row{display:flex;gap:12px;flex-wrap:wrap}
.b{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:12px 18px;border-radius:2px;min-height:44px}
.b-blue{background:var(--blue);color:#fff;box-shadow:4px 4px 0 var(--blue-soft)}
.b-blue:hover{text-decoration:none;transform:translate(-2px,-2px)}
.b-wa{background:var(--wa);color:#06311a;box-shadow:4px 4px 0 #0b3a22}
.b-wa:hover{text-decoration:none;transform:translate(-2px,-2px)}
.b-wa svg{width:18px;height:18px}

/* related */
.related{margin-top:46px;border-top:1px solid var(--line);padding-top:26px}
.related h2{font-family:'IBM Plex Mono',monospace;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--mist);margin-bottom:14px}
.related a{display:block;font-family:'IBM Plex Mono',monospace;font-size:15px;color:var(--text);padding:9px 0;border-bottom:1px solid var(--line-soft)}
.related a:hover{color:var(--blue);text-decoration:none}

/* blog index */
.index-head{padding:40px 0 10px}
.index-head h1{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:clamp(30px,5vw,44px);letter-spacing:-.035em;margin:14px 0 0}
.index-head p{color:var(--mist);font-size:17.5px;margin-top:14px;max-width:54ch}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;padding:36px 0 10px}
.card{display:flex;flex-direction:column;gap:11px;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:26px;color:inherit;transition:transform .15s,box-shadow .15s,border-color .15s}
.card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:6px 6px 0 rgba(0,6,255,.13);border-color:var(--blue)}
.card .tag{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--blue)}
.card h2{font-family:'IBM Plex Mono',monospace;font-size:20px;font-weight:600;letter-spacing:-.015em;line-height:1.24;color:var(--text);margin:0}
.card p{color:var(--mist);font-size:14.5px;line-height:1.55;margin:0;flex:1}
.card .more{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--blue);font-weight:500}
@media(max-width:680px){.cards{grid-template-columns:1fr}}

/* footer */
footer.site{background:var(--ink-2);color:var(--mist-2);margin-top:60px;padding:40px 0 30px;border-top:1px solid var(--ink-3)}
footer.site .wrap-wide{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
footer.site img{height:22px;filter:invert(1)}
footer.site a{color:var(--mist-2)}
footer.site a:hover{color:#fff}
.foot-links{display:flex;gap:22px;font-size:14px;flex-wrap:wrap}