@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root{
  --ink:#15171c; --ink-2:#20232c; --ink-3:#2b2f39;
  --body:#3c414c; --muted:#6a6f7a;
  --paper:#e8e9e4; --paper-2:#e1e2db; --surface:#f4f4f0; --surface-2:#fbfbf9;
  --line:#d2d3ca; --line-2:#c2c3b8;
  --cobalt:#1f3be0; --cobalt-deep:#1a30b8; --cobalt-soft:#e3e5fb;
  --gold:#e0932a; --gold-deep:#a96e12; --gold-soft:#f5e5c6;
  --maxw:62rem; --r:14px; --r-lg:20px;
  --sh-sm:0 1px 2px rgba(21,23,28,.05); --sh:0 10px 34px rgba(21,23,28,.10);
  --disp:"Space Grotesk","Hanken Grotesk",system-ui,sans-serif;
  --font:"Hanken Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"Space Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{margin:0;font-family:var(--font);color:var(--body);background:var(--paper);line-height:1.65;font-size:1.0625rem;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--cobalt-deep);text-underline-offset:3px;text-decoration-thickness:1.5px}
a:hover{color:var(--cobalt)}
h1,h2,h3,h4{font-family:var(--disp);color:var(--ink);line-height:1.12;margin:0;font-weight:700}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:1.4rem}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:3px;border-radius:6px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font-family:var(--disp);font-weight:600;text-decoration:none;border-radius:999px;cursor:pointer;border:2px solid transparent;transition:transform .12s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;letter-spacing:-.01em}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--cobalt);color:#fff;padding:.7rem 1.35rem;box-shadow:0 10px 24px rgba(31,59,224,.26)}
.btn-primary:hover{background:var(--cobalt-deep);color:#fff}
.btn-lg{padding:1rem 2.1rem;font-size:1.08rem}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2);padding:1rem 2rem}
.btn-ghost:hover{border-color:var(--ink);background:rgba(21,23,28,.04)}

.site-head{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:4.6rem;gap:1rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);font-family:var(--disp);font-weight:700;font-size:1.24rem;letter-spacing:-.02em}
.brand:hover{color:var(--ink)}
.brand .mark{width:34px;height:34px;flex:0 0 auto}
.brand img.logo{height:28px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:1.8rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink-3);text-decoration:none;font-size:.95rem;font-weight:500;font-family:var(--font)}
.nav-links a:hover{color:var(--cobalt)}
.nav .btn-primary{padding:.58rem 1.2rem;font-size:.94rem}
@media (max-width:820px){.nav-links{display:none}}

.page-wrap{padding-block:clamp(2.4rem,5vw,3.6rem)}
.crumbs{font-family:var(--mono);font-size:.76rem;letter-spacing:.04em;color:var(--muted);margin:0 0 1.6rem;text-transform:uppercase}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--cobalt);text-decoration:underline}
.crumbs span{margin:0 .5rem;color:var(--cobalt)}
.page-head{max-width:46rem;margin:0 0 2.4rem}
.page-head h1{font-size:clamp(2.2rem,4.6vw,3.1rem);letter-spacing:-.025em;text-wrap:balance}
.page-head .lede{font-family:var(--font);font-size:1.18rem;color:var(--muted);line-height:1.55;margin:1.1rem 0 0;max-width:42rem}
.updated{font-family:var(--mono);font-size:.76rem;color:var(--muted);margin:1.2rem 0 0;letter-spacing:.03em}

.prose{max-width:44rem;font-size:1.075rem;line-height:1.72;color:var(--body)}
.prose h2{font-family:var(--disp);font-size:1.55rem;margin:2.8rem 0 .5rem;color:var(--ink);letter-spacing:-.02em;text-wrap:balance}
.prose h3{font-family:var(--disp);font-size:1.2rem;margin:1.9rem 0 .3rem;color:var(--ink)}
.prose p{margin:.85rem 0 1.15rem}
.prose ul,.prose ol{margin:.6rem 0 1.3rem;padding-left:1.35rem}
.prose li{margin:.5rem 0}
.prose li::marker{color:var(--cobalt)}
.prose strong{color:var(--ink);font-weight:600}
.prose a{color:var(--cobalt-deep);font-weight:600}
.prose code{font-family:var(--mono);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:.05rem .35rem;font-size:.88em}
.lead-p{font-size:1.16rem;line-height:1.6;color:var(--ink)}
.note{background:var(--surface-2);border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:var(--r);padding:1.15rem 1.3rem;margin:1.8rem 0}
.note p{margin:.3rem 0}
.cta-row{margin:2.6rem 0 .5rem;display:flex;flex-wrap:wrap;gap:.9rem;align-items:center}

.cform{max-width:34rem;margin:1.8rem 0;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);padding:1.7rem}
.cform label{display:block;font-family:var(--disp);font-weight:600;color:var(--ink);font-size:.92rem;margin:1.1rem 0 .4rem}
.cform label:first-child{margin-top:0}
.cform input,.cform textarea{width:100%;box-sizing:border-box;font-family:var(--font);font-size:1rem;padding:.8rem 1rem;border:1.5px solid var(--line-2);border-radius:11px;color:var(--ink);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}
.cform input:focus,.cform textarea:focus{border-color:var(--cobalt);box-shadow:0 0 0 3px rgba(31,59,224,.14)}
.cform textarea{min-height:8rem;resize:vertical}
.cform .cbtn{width:100%;margin-top:1.3rem;border:none;cursor:pointer;border-radius:999px;padding:.9rem 1.2rem;font-family:var(--disp);font-weight:600;font-size:1.04rem;color:#fff;background:var(--cobalt);box-shadow:0 10px 22px rgba(31,59,224,.26);transition:background .2s}
.cform .cbtn:hover{background:var(--cobalt-deep)}
.cform .cbtn:disabled{opacity:.7;cursor:default}
.cform .cnote{font-family:var(--mono);font-size:.74rem;color:var(--muted);margin:1rem 0 0}
.cmsg{font-weight:600;margin:1rem 0 0}
.cmsg.ok{color:var(--cobalt-deep)}
.cmsg.bad{color:#c0392b}

footer.site-foot{background:var(--ink);color:#9297a6;margin-top:3rem}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2rem;padding-block:3.4rem}
.foot-brand .brand{color:#fff;margin-bottom:1rem}
.foot-brand .brand img.logo{filter:none;height:30px}
.foot-brand p{font-size:.92rem;color:#8b909c;max-width:25rem;font-family:var(--font)}
.foot-col h4{color:#e6e7ea;font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 1rem;font-weight:700}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:.6rem}
.foot-col a{color:#9297a6;text-decoration:none;font-size:.92rem;font-family:var(--font)}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-block:1.5rem;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:.78rem;color:#7f838f}
.langbar a{color:#9297a6;text-decoration:none;padding:0 .35rem}
.langbar a[aria-current]{color:#fff;font-weight:700}
@media (max-width:820px){.foot-top{grid-template-columns:1fr 1fr;gap:1.7rem}}
@media (max-width:520px){.foot-top{grid-template-columns:1fr}}

.author-hero{display:flex;gap:1.6rem;align-items:flex-start;margin:.4rem 0 1.6rem}
.author-hero img.photo{flex:0 0 auto;width:150px;height:150px;border-radius:18px;object-fit:cover;border:1px solid var(--line);box-shadow:var(--sh);display:block}
.author-hero .role{font-family:var(--mono);font-size:.74rem;letter-spacing:.07em;text-transform:uppercase;color:var(--cobalt-deep);margin:.3rem 0 .7rem}
.author-hero .intro{font-size:1.05rem;color:var(--body);margin:0 0 1rem}
.li-btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--disp);font-weight:600;font-size:.92rem;color:#fff;background:#0a66c2;padding:.55rem 1.1rem;border-radius:999px;text-decoration:none}
.li-btn:hover{background:#0955a3;color:#fff}
.li-btn svg{width:16px;height:16px;fill:currentColor}
.facts{list-style:none;padding:0;margin:1.3rem 0}
.facts li{padding:.6rem 0;border-bottom:1px solid var(--line);display:flex;gap:1rem;font-size:.96rem;color:var(--muted)}
.facts li:first-child{border-top:1px solid var(--line)}
.facts li b{min-width:9rem;color:var(--ink);font-family:var(--disp);font-weight:600}
@media(max-width:560px){.author-hero{flex-direction:column}}