:root{
  --bg:#0a0b0d; --panel:#111419; --line:#232932; --line-bright:#2f3742;
  --ink:#e9e7df; --ink-dim:#9aa3ad; --ink-faint:#5c656f; --lime:#ffffff; --lime-deep:#cfd3d8;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:'Familjen Grotesk',sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;min-height:100vh}
body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000,transparent 70%);mask-image:radial-gradient(ellipse 80% 50% at 50% 0%,#000,transparent 70%);opacity:.25;pointer-events:none;z-index:0}
.wrap{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:0 24px}
header{display:flex;align-items:center;justify-content:space-between;padding:26px 0;border-bottom:1px solid var(--line)}
.brand{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:21px;letter-spacing:-.04em;text-decoration:none;color:var(--ink)}
.brand b{color:var(--lime)}
.nav a{font-family:'Space Mono',monospace;font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-dim);text-decoration:none;margin-left:20px;transition:.15s}
.nav a:hover{color:var(--lime)}

.crumb{font-family:'Space Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--ink-faint);margin:36px 0 14px}
.crumb a{color:var(--ink-dim);text-decoration:none}.crumb a:hover{color:var(--lime)}

article h1,.blog-title{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.035em;line-height:1.04;font-size:clamp(32px,5.5vw,50px);margin-bottom:16px}
.meta{font-family:'Space Mono',monospace;font-size:12px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.1em;margin-bottom:34px;padding-bottom:24px;border-bottom:1px solid var(--line)}
article h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:26px;letter-spacing:-.02em;margin:40px 0 12px}
article h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:20px;margin:30px 0 8px}
article p{color:var(--ink-dim);margin-bottom:16px}
article ul,article ol{color:var(--ink-dim);margin:0 0 16px 22px}
article li{margin-bottom:8px}
article strong{color:var(--ink)}
article a{color:var(--lime);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,255,255,.4)}
article a:hover{text-decoration-color:var(--lime)}
.formula{font-family:'Space Mono',monospace;font-size:15px;color:var(--lime);background:var(--panel);border:1px solid var(--line-bright);border-left:3px solid var(--lime);border-radius:8px;padding:16px 18px;margin:18px 0;overflow-x:auto}
code{font-family:'Space Mono',monospace;font-size:14px;color:var(--lime);background:var(--panel);padding:2px 7px;border-radius:6px;border:1px solid var(--line)}
.callout{background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:12px;padding:22px 24px;margin:28px 0}
.callout .k{font-family:'Space Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--lime-deep);margin-bottom:8px}
.cta{display:inline-flex;align-items:center;gap:8px;font-family:'Space Mono',monospace;font-size:13px;text-transform:uppercase;letter-spacing:.04em;font-weight:700;text-decoration:none;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.35);padding:13px 20px;border-radius:10px;transition:.15s;margin-top:6px}
.cta:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.55);transform:translateY(-1px)}
.example{border:1px solid var(--line);border-radius:10px;padding:18px;margin:18px 0;background:rgba(255,255,255,.015)}
.example .row{display:flex;justify-content:space-between;font-family:'Space Mono',monospace;font-size:14px;padding:7px 0;border-bottom:1px dashed var(--line)}
.example .row:last-child{border-bottom:none}.example .row b{color:var(--lime)}

/* glossary */
.glossary{margin:10px 0 0}
.glossary dt{font-weight:700;color:#e9e7df;margin-top:20px;font-size:16px;scroll-margin-top:20px}
.glossary dd{margin:5px 0 0;color:#aeb4bb;font-size:15px;line-height:1.65}
.glossary dd a{color:#fff;text-decoration:underline;text-underline-offset:2px}

/* blog index cards */
.posts{display:grid;gap:16px;margin:30px 0 60px}
.post-card{display:block;text-decoration:none;background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:14px;padding:26px 28px;transition:.2s}
.post-card:hover{border-color:var(--lime);transform:translateY(-2px)}
.post-card .tag{font-family:'Space Mono',monospace;font-size:10.5px;text-transform:uppercase;letter-spacing:.14em;color:var(--lime-deep)}
.post-card h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:23px;letter-spacing:-.02em;color:var(--ink);margin:8px 0 6px}
.post-card p{color:var(--ink-dim);font-size:15px;margin:0}

.endcta{background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:14px;padding:30px;margin:44px 0;text-align:center}
.endcta h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:24px;margin-bottom:8px}
.endcta p{color:var(--ink-dim);margin-bottom:18px}

footer{border-top:1px solid var(--line);padding:30px 0 60px;font-family:'Space Mono',monospace;font-size:12px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.1em;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
footer a{color:var(--ink-dim);text-decoration:none}footer a:hover{color:var(--lime)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* embedded calculator + landing extras (programmatic SEO pages) */
.lead{color:var(--ink-dim);font-size:18px;max-width:680px;margin:14px 0 24px}
.calc{background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:16px;padding:24px;margin:22px 0;display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(max-width:640px){.calc{grid-template-columns:1fr;gap:18px}}
.calc label{display:block;font-family:'Space Mono',monospace;font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-dim);margin:12px 0 5px}
.calc input{width:100%;background:var(--bg);border:1px solid var(--line-bright);color:var(--ink);font-family:'Space Mono',monospace;font-size:15px;padding:11px 13px;border-radius:9px;outline:none}
.calc input:focus{border-color:var(--lime)}
.calc .seg{display:flex;gap:6px}
.calc .seg button{flex:1;font-family:'Space Mono',monospace;font-size:12px;text-transform:uppercase;padding:10px;border-radius:8px;background:var(--bg);border:1px solid var(--line-bright);color:var(--ink-dim);cursor:pointer}
.calc .seg button.on[data-side=long]{background:rgba(255,255,255,.12);border-color:var(--lime);color:var(--lime)}
.calc .seg button.on[data-side=short]{background:rgba(255,98,88,.12);border-color:#ff6258;color:#ff6258}
.calc-out{border-left:1px solid var(--line);padding-left:26px}
@media(max-width:640px){.calc-out{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:18px}}
.calc-out .col{font-family:'Space Mono',monospace;font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-dim);margin-bottom:8px}
.calc-out .big{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:38px;color:#e9e7df;letter-spacing:-1px;line-height:1;overflow-wrap:anywhere}
.calc-out .rr{display:flex;justify-content:space-between;gap:10px;font-family:'Space Mono',monospace;font-size:13px;color:var(--ink-dim);margin-top:14px;padding-top:12px;border-top:1px dashed var(--line)}
.calc-out .rr b{color:var(--ink);font-weight:400;text-align:right}
.exbtn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-family:'Space Mono',monospace;font-size:13px;text-transform:uppercase;letter-spacing:.05em;font-weight:700;color:#0a0b0d;padding:13px 22px;border-radius:10px;margin:8px 0;transition:.15s}
.exbtn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.related{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 8px}
.related a{font-family:'Space Mono',monospace;font-size:12px;color:var(--ink-dim);text-decoration:none;border:1px solid var(--line-bright);border-radius:8px;padding:8px 12px;transition:.15s}
.related a:hover{color:var(--lime);border-color:var(--lime)}
.comments{margin-top:48px;padding-top:30px;border-top:1px solid var(--line)}
.cm-title{font-family:'Bricolage Grotesque',sans-serif;font-size:22px;font-weight:600;margin:0 0 18px;color:var(--ink)}
.cm-form{display:flex;flex-direction:column;gap:10px;margin-bottom:30px}
.cm-in{background:var(--bg);border:1px solid var(--line-bright);color:var(--ink);font-family:inherit;font-size:15px;padding:12px 14px;border-radius:10px;outline:none;transition:.15s;width:100%}
.cm-in:focus{border-color:#2ebd85;box-shadow:0 0 0 3px rgba(46,189,133,.14)}
.cm-ta{resize:vertical;min-height:74px;line-height:1.5}
.cm-submit{align-self:flex-start;background:#2ebd85;color:#04150d;font-family:'Space Mono',monospace;font-weight:700;font-size:13px;border:none;padding:11px 22px;border-radius:10px;cursor:pointer;transition:.15s}
.cm-submit:hover{filter:brightness(1.08)}
.cm-submit:disabled{opacity:.6;cursor:default}
.cm-list{display:flex;flex-direction:column;gap:16px}
.cm-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:13px 16px}
.cm-meta{display:flex;align-items:baseline;gap:10px;margin-bottom:6px}
.cm-name{font-weight:600;color:var(--ink);font-size:14px}
.cm-time{color:var(--ink-faint);font-size:12px;font-family:'Space Mono',monospace}
.cm-text{color:var(--ink-dim);font-size:15px;line-height:1.55;margin:0;white-space:pre-wrap;word-break:break-word}
.cm-none{color:var(--ink-faint);font-size:15px;font-style:italic}
/* ---- blog upgrade (June 2026) ---- */
.blog-hero{margin:6px 0 22px}
.blog-intro{color:var(--ink-dim);max-width:640px;font-size:16px;line-height:1.6;margin:0}
.cat-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px}
.chip{font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.04em;color:var(--ink-dim);background:var(--panel);border:1px solid var(--line-bright);border-radius:20px;padding:7px 14px;cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--ink-faint);color:var(--ink)}
.chip.active{background:var(--lime);color:#0a0b0d;border-color:var(--lime);font-weight:700}
.posts{grid-template-columns:1fr 1fr;gap:14px;margin:0 0 50px}
.post-card{padding:20px 22px;border-radius:13px}
.post-card h2{font-size:19px;margin:7px 0 6px;line-height:1.25}
.post-card p{font-size:14px;line-height:1.5}
.no-res{color:var(--ink-faint);text-align:center;padding:30px 0}
@media(max-width:680px){.posts{grid-template-columns:1fr}}
.callout{padding:15px 18px;margin:22px 0;border-radius:12px}
.callout .k{margin-bottom:6px}
.callout p{font-size:14.5px;margin:0 0 12px}
.toolshow{margin:42px 0 6px;border-top:1px solid var(--line);padding-top:26px}
.ts-head{font-family:'Space Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--lime-deep);margin-bottom:14px}
.ts-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.ts-card{display:block;text-decoration:none;background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:12px;padding:14px 15px;transition:.18s}
.ts-card:hover{border-color:var(--lime);transform:translateY(-2px)}
.ts-card b{display:block;font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:15px;color:var(--ink);letter-spacing:-.01em}
.ts-card small{display:block;color:var(--ink-faint);font-size:12.5px;margin-top:3px}
@media(max-width:620px){.ts-grid{grid-template-columns:1fr 1fr}}
.related{margin:36px 0 10px}
.rel-title{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:20px;margin:0 0 14px}
.rel-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.rel-card{display:flex;flex-direction:column;gap:8px;text-decoration:none;background:linear-gradient(180deg,var(--panel),#0d0f12);border:1px solid var(--line-bright);border-radius:12px;padding:15px 16px;transition:.18s}
.rel-card:hover{border-color:var(--lime);transform:translateY(-2px)}
.rel-card .tag{font-family:'Space Mono',monospace;font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--lime-deep)}
.rel-t{font-family:'Bricolage Grotesque',sans-serif;font-weight:600;font-size:15px;color:var(--ink);line-height:1.3}
@media(max-width:620px){.rel-grid{grid-template-columns:1fr}}

.liqmap-cta{text-align:center;margin:26px 0}
.liqmap-cta .cta{font-size:14px}