/* pwp-authored-additional-v1-20261028: technical foundation only */
@layer pwp-runtime-foundation {
  :root {
    --bg:#F0F9FF; --text:#0C4A6E;
    --surface:#FFFFFF; --text-muted:#475569;
    --primary:#0EA5E9; --primary-fg:#0F172A;
    --border:#BAE6FD;
  }
  *, *::before, *::after { box-sizing:border-box; }
  html { scroll-behavior:smooth; }
  body { margin:0; background:var(--bg); color:var(--text); }
  img, video { max-inline-size:100%; block-size:auto; }
  button, input, select, textarea { font:inherit; }
  button, summary { cursor:pointer; }
  :where(a,button,input,select,textarea,summary):focus-visible { outline:2px solid currentColor; outline-offset:4px; }
  .skip { position:fixed; inset-block-start:-10rem; inset-inline-start:1rem; z-index:10000; padding:.75rem; background:var(--bg); color:var(--text); }
  .skip:focus { inset-block-start:1rem; }
  /* Legal prose is a separate utility; never constrain the author's main site. */
  .legal-container { max-inline-size:76ch; margin-inline:auto; padding:clamp(1rem,4vw,3rem); }
  .legal-body { line-height:1.7; overflow-wrap:anywhere; }
  .legal-body p + p, .legal-body section + section { margin-block-start:1.25em; }
  .legal-body table { display:block; overflow-x:auto; max-inline-size:100%; }
  .legal-body h1, .legal-body h2, .legal-body h3, .legal-title { line-height:1.2; }
  [data-cookie-fallback] { position:fixed; inset-inline:1rem; inset-block-end:1rem; z-index:9999; max-inline-size:34rem; padding:1rem; border:1px solid var(--border); background:var(--bg); color:var(--text); }
  [data-cookie-fallback] .cookie-text { font:14px/1.5 system-ui,sans-serif; }
  [data-cookie-fallback] .cookie-actions { display:flex; flex-wrap:wrap; gap:.75rem; margin-block-start:.75rem; }
  [data-cookie-fallback] button { min-block-size:44px; padding:.6rem 1rem; border:1px solid var(--border); background:var(--surface); color:var(--text); }
  [data-cookie-fallback] [data-action="accept-cookie"] { background:var(--primary); color:var(--primary-fg); }
}
/* Required state, not a visual layout. Expanded pages may be grid/flex/block. */
[hidden], .cookie-banner.hidden { display:none !important; }
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}

/* === AUTHOR-OWNED SITE STYLES === */
:root{--bg:#f6f3ea;--text:#183e3d;--surface:#fffdf7;--text-muted:#526b68;--primary:#b64f35;--primary-fg:#fff;--border:#cbd5cc;--sea:#2b6866;--sand:#e8dfc9;--ink:#183e3d}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"DM Sans",Arial,sans-serif;line-height:1.6}
a{color:inherit;text-underline-offset:.2em}
a:hover{color:var(--primary)}
button{font:inherit}
:focus-visible{outline:3px solid #d66b43;outline-offset:4px}
[hidden]{display:none!important}
.site-header{background:var(--bg);border-bottom:1px solid var(--border)}
.header-inner{max-width:1440px;margin:auto;padding:20px clamp(20px,5vw,76px);display:flex;align-items:center;justify-content:space-between;gap:28px}
.wordmark{text-decoration:none;font-weight:800;letter-spacing:-.06em;font-size:1.55rem;line-height:1;color:var(--ink);white-space:nowrap}
.wordmark span{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:clamp(16px,2.5vw,36px);font-size:.92rem;font-weight:700}
.nav-links a{text-decoration:none}
.nav-links .nav-contact{border:1px solid var(--ink);padding:9px 18px}
main{min-height:55vh}
.wrap{width:min(100% - 40px,1300px);margin:auto}
.hero{background:#dce8df;overflow:hidden}
.hero-grid{min-height:570px;display:grid;grid-template-columns:1.05fr .95fr;align-items:stretch}
.hero-copy{padding:clamp(60px,8vw,120px) clamp(24px,6vw,88px) 70px max(20px,calc((100vw - 1300px)/2));align-self:center}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-weight:800;font-size:.72rem;color:var(--primary);margin:0 0 20px}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.08}
h1,h2{font-family:"Newsreader",Georgia,serif;font-weight:500;letter-spacing:-.035em}
.hero h1{font-size:clamp(4rem,7.4vw,7.6rem);max-width:700px;margin-bottom:24px}
.hero-copy>p:not(.eyebrow){font-size:1.15rem;max-width:500px;color:#385955}
.text-link{display:inline-flex;gap:18px;align-items:center;font-weight:800;text-decoration:none;border-bottom:1px solid currentColor;padding:9px 0}
.hero-art{position:relative;min-height:420px;background:#c6dcd0;overflow:hidden}
.hero-art svg{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}
.art-caption{position:absolute;bottom:23px;right:27px;color:#244e4a;font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.intro-strip{background:var(--ink);color:#f7f3e8}
.intro-inner{display:flex;justify-content:space-between;gap:30px;align-items:center;padding:26px 0}
.intro-inner p{margin:0;max-width:650px}
.intro-inner a{white-space:nowrap}
.section{padding:90px 0}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:36px}
.section-heading h2,.utility h2,.contact-panel h1{font-size:clamp(2.7rem,5vw,4.7rem);margin:0}
.section-heading p{max-width:380px;margin:0;color:var(--text-muted)}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--border)}
.guide-item{padding:30px 35px 34px 0;border-bottom:1px solid var(--border)}
.guide-item:nth-child(even){border-left:1px solid var(--border);padding-left:35px}
.guide-item .topic{font-size:.75rem;font-weight:800;color:var(--primary);text-transform:uppercase;letter-spacing:.1em}
.guide-item h3{font-family:"Newsreader",Georgia,serif;font-weight:500;font-size:2.15rem;letter-spacing:-.02em;margin:10px 0}
.guide-item p{max-width:470px;color:var(--text-muted);margin-bottom:12px}
.guide-item a{text-decoration:none}
.guide-item h3 a:hover{text-decoration:underline}
.utility{background:#eadfc9;padding:75px 0}
.utility-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(35px,8vw,120px)}
.utility h2{margin-bottom:20px}
.utility p{max-width:560px}
.utility-list{border-top:1px solid #b8b9a7}
.utility-list a{display:flex;justify-content:space-between;gap:20px;text-decoration:none;border-bottom:1px solid #b8b9a7;padding:20px 0;font-weight:800}
.source-note{font-size:.9rem;color:#49615a}
.article-head{background:#dce8df;padding:65px 0 75px}
.article-head .wrap,.article-body .wrap{max-width:1000px}
.back{display:inline-block;text-decoration:none;font-size:.88rem;font-weight:700;margin-bottom:36px}
.article-head h1{font-size:clamp(3.5rem,7vw,6.5rem);max-width:850px;margin:0 0 20px}
.article-head .lead{font-size:1.22rem;max-width:700px;margin:0;color:#3c5b55}
.article-body{padding:65px 0 95px}
.article-layout{display:grid;grid-template-columns:180px minmax(0,680px);gap:60px}
.article-label{color:var(--primary);font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;font-weight:800}
.prose{font-size:1.06rem}
.prose h2{font-size:2.35rem;margin:42px 0 16px}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:#385451}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{padding-left:.3em;margin-bottom:10px}
.callout{background:#e7eee7;border-left:4px solid var(--sea);padding:22px 26px;margin:30px 0}
.callout p:last-child{margin:0}
.related{border-top:1px solid var(--border);margin-top:45px;padding-top:24px;font-weight:700}
.contact-panel{padding:80px 0 100px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}
.contact-panel h1{margin:0 0 25px}
.contact-details{border-top:1px solid var(--border)}
.contact-details div{padding:20px 0;border-bottom:1px solid var(--border)}
.contact-details strong{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--primary)}
.site-footer{background:#173e3c;color:#f3f1e7;padding:65px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:45px}
.site-footer .wordmark{color:#fff}
.site-footer p{color:#d4dfd7;max-width:330px;font-size:.92rem}
.footer-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:#b6cdc1;font-weight:800;margin-bottom:15px}
.footer-links{display:flex;flex-direction:column;align-items:flex-start;gap:8px;font-size:.9rem}
.footer-bottom{border-top:1px solid #52716b;margin-top:50px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:.82rem;color:#cbdad0}
.cookie-open{border:0;background:none;color:inherit;text-decoration:underline;padding:0;cursor:pointer}
.cookie-banner{position:fixed;z-index:20;bottom:18px;left:18px;width:min(560px,calc(100% - 36px));background:#fffdf7;color:var(--ink);border:1px solid var(--ink);box-shadow:0 8px 30px #173e3c30;padding:24px}
.cookie-banner h2{font-family:"DM Sans",sans-serif;font-size:1.15rem;font-weight:800;letter-spacing:0;margin-bottom:8px}
.cookie-banner p{font-size:.9rem;margin-bottom:16px}
.cookie-actions{display:flex;flex-wrap:wrap;gap:10px}
.cookie-actions button{padding:10px 16px;border:1px solid var(--ink);background:var(--ink);color:white;cursor:pointer;font-weight:700}
.cookie-actions button+button{background:transparent;color:var(--ink)}
.document{max-width:820px;margin:0 auto;padding:70px 20px 100px}
.document h1{font-size:clamp(3rem,6vw,5rem)}
.document h2{font-size:2rem;margin-top:35px}
@media(max-width:760px){
.header-inner{align-items:flex-start;flex-direction:column;gap:18px;padding:20px}
.nav-links{width:100%;flex-wrap:wrap;gap:10px 20px}
.nav-links .nav-contact{padding:0;border:0}
.hero-grid{grid-template-columns:1fr}
.hero-copy{padding:58px 20px 50px}
.hero h1{font-size:clamp(3.8rem,14vw,5.8rem)}
.hero-art{min-height:300px}
.intro-inner,.section-heading{align-items:flex-start;flex-direction:column}
.section{padding:65px 0}
.guide-grid,.utility-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}
.guide-item,.guide-item:nth-child(even){border-left:0;padding:24px 0}
.utility{padding:60px 0}
.article-head{padding:45px 0 55px}
.article-layout{grid-template-columns:1fr;gap:15px}
.article-body{padding:45px 0 70px}
.footer-grid{gap:30px}
.footer-bottom{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* === OPEN NAVIGATION SURFACE SAFETY === */
/* Position, shadows, borders and scroll treatment belong to the author.
   Only an OPEN mobile menu gets a mandatory opaque readable surface. */
header.site-header[data-pwp-nav-open] {
  background-color: var(--bg, #ffffff) !important;
  isolation: isolate;
}
[data-pwp-mobile-menu][data-pwp-menu-open] {
  background-color: var(--bg, #ffffff);
  color: var(--text, #0f172a);
  max-block-size: var(--pwp-nav-available-height, calc(100dvh - 6rem));
  overflow-y: auto;
  overscroll-behavior: contain;
}
.pwp-source-note {
  margin-block-start: 1rem;
  font-size: .875em;
  line-height: 1.5;
}
.pwp-source-note a { text-decoration: underline; text-underline-offset: .2em; }