:root{
  --ink:#18161a; --paper:#faf8f4; --paper-dim:#f0ece4; --paper-dim2:#e7e1d6;
  --slate:#657079; --slate-soft:#aab3ba; --line:rgba(24,22,20,.14);
  --li-blue:#0a66c2;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Iowan Old Style","Palatino Linotype",Georgia,serif;line-height:1.65;
  -webkit-font-smoothing:antialiased;}
.rounded{font-family:ui-rounded,"SF Pro Rounded","Quicksand",system-ui,sans-serif;}
.mono{font-family:ui-monospace,"SF Mono","Cascadia Code",monospace;}
.kicker{font-family:ui-monospace,"SF Mono",monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--slate);}
a{color:inherit;}
img,svg{max-width:100%;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:2px;}
#writing,#reference,#about,#contact{scroll-margin-top:76px;}

/* ---- nav ---- */
nav{position:sticky;top:0;background:var(--paper);border-bottom:1px solid var(--line);z-index:10;}
.nav-inner{max-width:1080px;margin:0 auto;padding:.9rem 1.5rem;display:flex;
  align-items:center;justify-content:space-between;}
.brand-mark{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);}
.brand-mark svg{width:26px;height:26px;color:var(--ink);}
.brand-mark span{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-weight:700;font-size:1.02rem;}
.navlinks{display:flex;gap:1.6rem;font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:.9rem;}
.navlinks a{text-decoration:none;color:var(--ink);}
@media (max-width:560px){.navlinks{display:none;}}

/* ---- hero ---- */
.hero{padding:5rem 1.5rem 4rem;position:relative;overflow:hidden;}
.hero-inner{max-width:720px;margin:0 auto;text-align:center;position:relative;z-index:2;}
.hero-ring{position:absolute;top:-40px;right:-60px;width:280px;height:280px;opacity:.16;z-index:1;}
.hero-ring2{position:absolute;bottom:-70px;left:-70px;width:220px;height:220px;opacity:.1;z-index:1;}
.hero h1{font-size:2.6rem;line-height:1.2;margin:1rem 0 .8rem;letter-spacing:-.01em;text-wrap:balance;}
.hero .lede{font-size:1.15rem;color:var(--slate);max-width:520px;margin:0 auto 1.8rem;}
.cta-row{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;}
.btn{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-weight:600;
  font-size:.92rem;padding:.7rem 1.4rem;border-radius:24px;text-decoration:none;display:inline-block;}
.btn.primary{background:var(--ink);color:var(--paper);}
.btn.ghost{border:1px solid var(--line);color:var(--ink);}

/* ---- page hero (simpler, for blog/reference pages) ---- */
.page-hero{padding:3.6rem 1.5rem 2rem;text-align:center;max-width:640px;margin:0 auto;}
.page-hero h1{font-size:2rem;margin:.8rem 0 .5rem;letter-spacing:-.01em;text-wrap:balance;}
.page-hero p{color:var(--slate);font-size:1.02rem;}

/* ---- intro ---- */
.intro{max-width:640px;margin:0 auto;padding:1rem 1.5rem 4rem;text-align:center;}
.intro p{font-size:1.06rem;}

/* ---- pillars ---- */
.pillars{background:var(--paper-dim);padding:4rem 1.5rem;}
.pillars-inner{max-width:1000px;margin:0 auto;}
.section-head{text-align:center;max-width:560px;margin:0 auto 2.4rem;}
.section-head h2{font-size:1.6rem;margin:.5rem 0 0;letter-spacing:-.01em;}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;}
@media (max-width:760px){.pillar-grid{grid-template-columns:1fr;}}
.pillar{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1.8rem 1.6rem;}
.pillar svg{width:40px;height:40px;color:var(--ink);margin-bottom:1rem;}
.pillar h3{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.1rem;margin:0 0 .5rem;}
.pillar p{font-size:.95rem;color:var(--slate);margin:0;}

/* ---- writing / post grid ---- */
.writing{padding:4.5rem 1.5rem;max-width:1000px;margin:0 auto;}
.writing-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:2rem;flex-wrap:wrap;gap:.5rem;}
.writing-head h2{font-size:1.6rem;margin:.3rem 0 0;letter-spacing:-.01em;}
.writing-head a{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:.9rem;
  color:var(--slate);text-decoration:none;border-bottom:1px solid var(--slate-soft);}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
@media (max-width:760px){.post-grid{grid-template-columns:1fr;}}
.post-card{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--paper);
  text-decoration:none;color:var(--ink);display:block;}
.post-banner{height:120px;background:var(--paper-dim2);position:relative;overflow:hidden;}
.post-banner svg{position:absolute;width:180px;height:180px;opacity:.7;}
.post-body{padding:1.2rem 1.3rem 1.4rem;}
.post-tag{font-family:ui-monospace,monospace;font-size:.68rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--slate);}
.post-title{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-weight:700;
  font-size:1.05rem;margin:.5rem 0 .5rem;line-height:1.32;}
.post-excerpt{font-size:.9rem;color:var(--slate);margin:0;}
.post-date{font-size:.78rem;color:var(--slate-soft);margin-top:.6rem;}

/* ---- reference callout ---- */
.callout{background:var(--ink);color:var(--paper);border-radius:8px;max-width:1000px;
  margin:0 auto 4.5rem;padding:2.6rem 2.4rem;display:flex;gap:2rem;align-items:center;flex-wrap:wrap;}
.callout-text{flex:1;min-width:260px;}
.callout .kicker{color:var(--slate-soft);}
.callout h2{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.4rem;
  margin:.5rem 0 .7rem;text-wrap:balance;}
.callout p{color:var(--slate-soft);font-size:.98rem;margin:0 0 1.2rem;max-width:480px;}
.callout .btn.primary{background:var(--paper);color:var(--ink);}
.callout-ring{width:110px;height:110px;flex-shrink:0;opacity:.85;}

/* ---- about ---- */
.about-section{background:var(--paper-dim);padding:4.5rem 1.5rem;}
.about-inner{max-width:800px;margin:0 auto;display:flex;gap:2.4rem;align-items:flex-start;}
@media (max-width:640px){.about-inner{flex-direction:column;align-items:center;text-align:center;}}
.about-mark{width:120px;height:120px;flex-shrink:0;color:var(--ink);opacity:.9;}
.about-text h2{font-size:1.7rem;margin:.4rem 0 1rem;letter-spacing:-.01em;}
.about-text p{font-size:1.02rem;}
.about-creds{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:.88rem;
  color:var(--slate);margin-top:1.2rem;}

/* ---- quote ---- */
.closer{max-width:640px;margin:0 auto;padding:4rem 1.5rem;text-align:center;}
.closer .quote{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-weight:700;
  font-size:1.5rem;line-height:1.4;text-wrap:balance;}

/* ---- contact ---- */
.contact-section{background:var(--ink);color:var(--paper);padding:4.5rem 1.5rem;text-align:center;}
.contact-inner{max-width:520px;margin:0 auto;}
.contact-section .kicker{color:var(--slate-soft);}
.contact-section h2{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.5rem;
  margin:.5rem 0 .8rem;text-wrap:balance;}
.contact-section p{color:var(--slate-soft);font-size:1rem;margin:0 0 1.4rem;}
.contact-section .btn.primary{background:var(--paper);color:var(--ink);}
.contact-note{font-size:.78rem;color:var(--slate-soft);opacity:.75;margin:.9rem 0 0;}

footer{border-top:1px solid var(--line);padding:2.6rem 1.5rem 3rem;}
.footer-inner{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1.4rem;}
.footer-inner .kicker{margin-bottom:.4rem;}
.foot-links{display:flex;gap:1.4rem;font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:.88rem;}
.foot-links a{text-decoration:none;color:var(--slate);}

/* ---- blog index ---- */
.blog-list{max-width:760px;margin:0 auto;padding:1rem 1.5rem 5rem;}
.blog-row{display:block;padding:1.6rem 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);}
.blog-row:first-child{padding-top:0;}
.blog-row .post-tag{margin-bottom:.4rem;}
.blog-row h2{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.25rem;
  margin:0 0 .5rem;letter-spacing:-.01em;}
.blog-row p{color:var(--slate);font-size:.96rem;margin:0;}
.blog-row .post-date{margin-top:.6rem;}

/* ---- article (blog post) ---- */
.article-wrap{max-width:640px;margin:0 auto;padding:2.5rem 1.5rem 5rem;}
.article-wrap .kicker{margin-bottom:.6rem;}
.article-wrap h1{font-size:1.9rem;line-height:1.25;margin:.3rem 0 .6rem;letter-spacing:-.01em;text-wrap:balance;}
.article-meta{color:var(--slate);font-size:.88rem;margin-bottom:2.2rem;}
article p{font-size:1.06rem;margin:0 0 1.2rem;}
article h2,article h3{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;margin:1.8rem 0 .7rem;}
article h3{font-size:1.1rem;}
.sig-line{margin:1.8rem 0;padding:1.1rem 1.3rem;background:var(--paper-dim);border-left:3px solid var(--slate-soft);
  font-style:italic;border-radius:0 4px 4px 0;font-size:1.02rem;}
.drop{font-style:italic;color:var(--slate);}
.article-cta{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--line);}

/* ---- reference hub page ---- */
.ref-wrap{max-width:760px;margin:0 auto;padding:1rem 1.5rem 5rem;}
.ref-group{margin-bottom:2.6rem;}
.ref-group h2{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.3rem;
  margin:0 0 1rem;letter-spacing:-.01em;}
.ref-item{padding:1.1rem 0;border-bottom:1px solid var(--line);}
.ref-item:last-child{border-bottom:none;}
.ref-item .rt{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-weight:600;font-size:1rem;}
.ref-item p{margin:.35rem 0 0;color:var(--slate);font-size:.92rem;}
.ref-item a.ext{font-size:.85rem;color:var(--li-blue);text-decoration:none;}
.iat-feature{background:var(--ink);color:var(--paper);border-radius:8px;padding:2.2rem 2rem;
  margin-bottom:3rem;text-align:center;}
.iat-feature .kicker{color:var(--slate-soft);}
.iat-feature h2{font-family:ui-rounded,"SF Pro Rounded","Quicksand",sans-serif;font-size:1.5rem;
  margin:.5rem 0 .8rem;text-wrap:balance;}
.iat-feature p{color:var(--slate-soft);max-width:480px;margin:0 auto 1.3rem;}
.iat-feature .btn.primary{background:var(--paper);color:var(--ink);}