/* Field Notes: shared styles. Tokens, nav and footer mirror the homepage's inline styles. */
:root{
  --paper:#F1ECE3; --paper-2:#E6DFD2;
  --ink:#16140F; --ink-2:#48433A; --ink-3:#7A7366;
  --line:rgba(22,20,15,.16);
  --rust:#B8461C; --rust-2:#D9572A;
  --night:#14130F; --night-2:#1E1C17; --bone:#EDE6D8;
  --serif:"Instrument Serif","Iowan Old Style",Georgia,serif;
  --sans:"Hanken Grotesk",ui-sans-serif,system-ui,-apple-system,sans-serif;
  --gutter:clamp(16px,4vw,56px);
  --max:1320px;
  --measure:680px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--rust);color:var(--paper)}
:focus-visible{outline:2px solid var(--rust);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--ink-3);display:flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:12px;font:600 15px/1 var(--sans);letter-spacing:.01em;text-decoration:none;padding:18px 26px;border-radius:999px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer;transition:background .25s,color .25s,border-color .25s}
.btn:hover{background:var(--rust);border-color:var(--rust)}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}
.btn.light{background:var(--bone);color:var(--night);border-color:var(--bone)}
.btn.light:hover{background:var(--rust-2);border-color:var(--rust-2)}
.btn.ghost-light{background:transparent;color:var(--bone);border-color:rgba(237,230,216,.35)}
.btn.ghost-light:hover{border-color:var(--bone);background:transparent}

/* Nav (matches homepage) */
.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-size:26px;letter-spacing:-.01em;line-height:1}
.logo svg{width:auto;height:26px;transition:transform .8s cubic-bezier(.2,.8,.2,1)}
.logo:hover svg{transform:rotate(360deg)}
.logo em{color:var(--rust)}
.nav ul{display:flex;list-style:none;gap:34px;font-size:14px;font-weight:500}
.nav ul a{text-decoration:none;color:var(--ink-2)}
.nav ul a:hover,.nav ul a[aria-current="page"]{color:var(--ink)}
.nav .btn{padding:13px 20px;font-size:14px}
@media (max-width:900px){.nav ul{display:none}}
/* Mobile menu */
.menu-btn{display:none;align-items:center;gap:10px;height:44px;padding:0 16px;border:1px solid var(--ink);border-radius:999px;background:transparent;color:var(--ink);font:600 14px var(--sans, "Hanken Grotesk", sans-serif);cursor:pointer}
.menu-btn i{position:relative;width:16px;height:8px}
.menu-btn i::before,.menu-btn i::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform .25s}
.menu-btn i::before{top:0}.menu-btn i::after{bottom:0}
.nav.open .menu-btn i::before{transform:translateY(3.25px) rotate(45deg)}
.nav.open .menu-btn i::after{transform:translateY(-3.25px) rotate(-45deg)}
.menu-btn:focus-visible{outline:2px solid var(--rust);outline-offset:2px}
@media (max-width:900px){
  .menu-btn{display:inline-flex}
  .nav nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 24px 32px -28px rgba(22,20,15,.45)}
  .nav.open nav{display:block}
  .nav.open nav ul{display:flex;flex-direction:column;gap:0;max-width:var(--max);margin:0 auto;padding:4px var(--gutter) 22px}
  .nav.open nav li + li{border-top:1px solid var(--line)}
  .nav.open nav a{display:block;padding:14px 0;font-family:var(--serif, "Instrument Serif", Georgia, serif);font-size:28px;line-height:1.1;color:var(--ink)}
}
@media (max-width:420px){.menu-btn{width:44px;padding:0;justify-content:center}.menu-btn span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}}
@media (max-width:420px){.nav .logo{font-size:21px}.nav .btn{padding:12px 16px}.nav .wrap{gap:8px}}

/* ---------- Field Notes index ---------- */
.fn-hero{position:relative;padding:clamp(56px,8vw,110px) 0 clamp(40px,5vw,64px);overflow:hidden}
.fn-hero .topo{position:absolute;right:-10%;top:-20%;width:62%;max-width:860px;opacity:.5;pointer-events:none}
.fn-hero .wrap{position:relative}
.fn-hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(48px,8vw,116px);line-height:.94;letter-spacing:-.025em;margin:24px 0 0;max-width:13ch}
.fn-hero h1 em{color:var(--rust)}
.fn-hero p{max-width:540px;margin-top:28px;font-size:clamp(17px,1.5vw,20px);color:var(--ink-2);line-height:1.55}
.fn-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:clamp(20px,3vw,36px);padding:clamp(16px,3vw,32px) 0 clamp(72px,9vw,120px)}
.card{display:flex;flex-direction:column;text-decoration:none;border-top:1px solid var(--ink);padding-top:22px}
.card .thumb{aspect-ratio:16/10;background:var(--paper-2);border-radius:4px;overflow:hidden;margin-bottom:22px}
.card .thumb svg,.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .meta{font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--ink-3)}
.card h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,3vw,40px);line-height:1.04;letter-spacing:-.015em;margin:12px 0 12px}
.card h2 em{color:var(--rust)}
.card p{color:var(--ink-2);font-size:16px}
.card .more{margin-top:18px;font-weight:600;font-size:14px;display:inline-flex;gap:8px}
.card:hover h2{color:var(--rust)}
.card:hover h2 em{color:var(--ink)}

/* ---------- Article ---------- */
.post-head{padding:clamp(48px,7vw,96px) 0 clamp(28px,4vw,44px)}
.post-head .crumbs{font-size:14px;color:var(--ink-3)}
.post-head .crumbs a{text-decoration:none;color:var(--ink-2)}
.post-head .crumbs a:hover{color:var(--rust)}
.post-head h1{font-family:var(--serif);font-weight:400;font-size:clamp(44px,6.6vw,92px);line-height:.98;letter-spacing:-.022em;margin:22px 0 0;max-width:15ch}
.post-head h1 em{color:var(--rust)}
.post-head .dek{max-width:var(--measure);margin-top:24px;font-size:clamp(18px,1.6vw,22px);line-height:1.5;color:var(--ink-2)}
.post-head .byline{margin-top:26px;font-size:14px;color:var(--ink-3);display:flex;gap:14px;flex-wrap:wrap}
.post-hero{margin:0 auto clamp(40px,6vw,72px);max-width:1080px;padding:0 var(--gutter)}
.post-hero svg,.post-hero img{width:100%;height:auto;border-radius:6px;background:var(--paper-2)}
.post-hero img{aspect-ratio:1200/630;object-fit:cover}
.prose{max-width:var(--measure);margin:0 auto;padding:0 var(--gutter) clamp(56px,7vw,96px);font-size:18px;line-height:1.7}
.prose > * + *{margin-top:1.15em}
.prose h2{font-family:var(--serif);font-weight:400;font-size:clamp(32px,3.4vw,44px);line-height:1.06;letter-spacing:-.015em;margin-top:1.9em}
.prose h2 em{color:var(--rust)}
.prose h3{font-size:18px;font-weight:600;margin-top:1.6em}
.prose a{color:var(--rust);text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--ink)}
.prose strong{font-weight:600}
.prose ul,.prose ol{padding-left:1.25em}
.prose li + li{margin-top:.5em}
.prose li::marker{color:var(--rust)}
.prose blockquote{font-family:var(--serif);font-size:clamp(26px,2.6vw,34px);line-height:1.2;letter-spacing:-.01em;border-left:2px solid var(--rust);padding:.1em 0 .1em 24px;margin-top:1.6em;margin-bottom:.4em}
.prose .lede{font-size:21px;line-height:1.55;color:var(--ink)}
.prose img{border-radius:6px;margin:1.6em 0}
.prose p:has(> img){margin:2em 0}
.note p,.compare p{margin:0}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:var(--paper-2);padding:.12em .4em;border-radius:3px}

/* Figures: allowed to run wider than the text column */
.prose figure{margin:2.2em calc(-1 * min(120px, 8vw)) 2.2em}
.prose figure svg{width:100%;height:auto}
.prose figcaption{font-size:14px;color:var(--ink-3);margin-top:12px;text-align:center}
@media (max-width:820px){.prose figure{margin-left:0;margin-right:0}}
@media (max-width:640px){.prose figure .scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.prose figure .scroll svg{min-width:620px}}

/* Callouts */
.note{background:var(--paper-2);border-radius:6px;padding:22px 24px;font-size:16px;line-height:1.6}
.note .label{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--rust);margin-bottom:8px}
.prompt{background:var(--night);color:var(--bone);border-radius:6px;padding:20px 24px;font-size:16px;line-height:1.55}
.prompt .label{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--rust-2);margin-bottom:8px}

/* Table */
.table-wrap{overflow-x:auto;margin:1.8em 0}
.prose table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.5}
.prose th{text-align:left;font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--ink-3);padding:0 14px 10px 0;border-bottom:1px solid var(--ink)}
.prose td{padding:14px 14px 14px 0;border-bottom:1px solid var(--line);vertical-align:top}
.prose td:first-child{font-family:var(--serif);font-size:21px;line-height:1.2;padding-right:22px;min-width:7ch}

/* Checklist */
.signs{list-style:none;padding:0!important;border-top:1px solid var(--line)}
.signs li{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:14px 0;border-bottom:1px solid var(--line);margin:0!important}
.signs li::before{content:"";width:14px;height:14px;margin-top:6px;border:1.5px solid var(--rust);border-radius:2px}

/* Before / after */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:1.8em 0}
.compare > div{border-radius:6px;padding:22px 22px 24px}
.compare .before{background:var(--paper-2)}
.compare .after{background:var(--night);color:var(--bone)}
.compare .label{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;margin-bottom:10px;color:var(--ink-3)}
.compare .after .label{color:var(--rust-2)}
.compare p{font-family:var(--serif);font-size:24px;line-height:1.2;letter-spacing:-.01em}
@media (max-width:640px){.compare{grid-template-columns:1fr}}

/* End-of-post CTA */
.post-cta{background:var(--night);color:var(--bone);padding:clamp(56px,8vw,104px) 0}
.post-cta .inner{max-width:var(--measure);margin:0 auto;padding:0 var(--gutter)}
.post-cta .eyebrow{color:#9C9483}
.post-cta h2{font-family:var(--serif);font-weight:400;font-size:clamp(38px,5vw,64px);line-height:1;letter-spacing:-.02em;margin:20px 0 18px}
.post-cta h2 em{color:var(--rust-2)}
.post-cta p{color:#BDB5A5;font-size:18px;max-width:560px}
.post-cta .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.more-notes{padding:clamp(56px,7vw,88px) 0}
.more-notes h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,3vw,40px);margin-bottom:24px}

/* Footer (matches homepage) */
footer{background:var(--night);color:#9C9483;border-top:1px solid rgba(237,230,216,.12);padding:56px 0 40px;font-size:14px}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
footer .logo{color:var(--bone);font-size:30px}
footer .logo em{color:var(--rust-2)}
footer .foot p{margin-top:14px;max-width:340px}
footer h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:#6E675A;margin-bottom:14px}
footer ul{list-style:none;display:grid;gap:8px}
footer a{text-decoration:none;color:#BDB5A5}
footer a:hover{color:var(--bone)}
.foot-base{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:56px;padding-top:24px;border-top:1px solid rgba(237,230,216,.12);font-size:13px}
.giant{font-family:var(--serif);font-size:clamp(64px,17vw,270px);line-height:.8;letter-spacing:-.04em;color:var(--night-2);white-space:nowrap;margin-top:40px;user-select:none;-webkit-text-stroke:1px rgba(237,230,216,.08);overflow:hidden}
@media (max-width:820px){.foot{grid-template-columns:1fr 1fr}.foot>div:first-child{grid-column:1/-1}}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}