:root{--bg:#f3f7fb;--card:#fff;--text:#102033;--muted:#5e7186;--blue:#0b5ed7;--navy:#092b5a;--line:#dbe7f4;--soft:#eaf3ff;--warn:#fff7df;--warnLine:#e4bf55;--shadow:0 14px 40px rgba(16,32,51,.08);--radius:22px;--max:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);line-height:1.65;background:linear-gradient(180deg,#fbfdff,var(--bg))}a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{max-width:var(--max);margin:auto;display:flex;align-items:center;justify-content:space-between;padding:12px 18px;gap:14px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--navy);white-space:nowrap}.logo{width:40px;height:40px;border-radius:13px;background:linear-gradient(135deg,var(--navy),var(--blue));display:grid;place-items:center;color:#fff;font-weight:950}.links{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.links a{font-size:14px;color:#36536f;padding:8px 10px;border-radius:999px}.links a:hover,.links a.active{background:var(--soft);color:var(--navy)}.hero{max-width:var(--max);margin:0 auto;padding:56px 18px 26px}.hero-box{background:linear-gradient(135deg,#fff,#eef6ff);border:1px solid var(--line);border-radius:32px;padding:44px;box-shadow:var(--shadow)}h1{font-size:clamp(40px,6vw,72px);line-height:1;margin:0;color:var(--navy);letter-spacing:-2px}.tagline{font-size:clamp(21px,2.4vw,30px);font-weight:850;color:var(--blue);margin:12px 0}.lead{font-size:18px;color:#3c5570;max-width:850px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.btn{border-radius:999px;padding:12px 18px;font-weight:850;border:1px solid var(--line);background:#fff;color:var(--navy)}.btn.primary{background:linear-gradient(135deg,var(--blue),#0aa6b6);color:#fff;border:0}main{max-width:var(--max);margin:auto;padding:12px 18px 40px}.page-title{background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:var(--shadow);margin:22px 0}.section{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;margin:18px 0;box-shadow:0 8px 24px rgba(16,32,51,.045)}h2{font-size:clamp(27px,3vw,42px);line-height:1.15;color:var(--navy);margin:0 0 12px;letter-spacing:-.8px}h3{font-size:21px;color:#163f71;margin:22px 0 8px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:18px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:linear-gradient(180deg,#fff,#fbfdff);border:1px solid var(--line);border-radius:20px;padding:20px}.card h3{margin-top:0}.notice{background:var(--warn);border:1px solid var(--warnLine);border-radius:18px;padding:16px 18px;margin:16px 0}.good{background:#ecfff7;border:1px solid #bee9d7;border-radius:18px;padding:16px 18px;margin:16px 0}ul{padding-left:22px}li{margin:6px 0}.faq{border:1px solid var(--line);border-radius:18px;margin:12px 0;background:#fff;overflow:hidden}.faq summary{cursor:pointer;padding:18px 52px 18px 18px;font-weight:850;color:var(--navy);position:relative;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'›';position:absolute;right:20px;top:16px;font-size:28px;line-height:1;transform:rotate(90deg);transition:.18s;color:var(--blue)}.faq[open] summary:after{transform:rotate(-90deg)}.faq div{padding:0 18px 18px;color:#405a73}.sources{font-size:14px}.sources a{text-decoration:underline;color:var(--blue)}footer{max-width:var(--max);margin:auto;padding:26px 18px 44px;text-align:center;color:var(--muted);font-size:14px}@media(max-width:900px){.links{display:none}.hero{padding-top:28px}.hero-box,.page-title,.section{padding:24px;border-radius:22px}.grid,.grid.two{grid-template-columns:1fr}h1{letter-spacing:-1px}}

/* Improvements v2 */
.hero-mini{background:linear-gradient(135deg,#ffffff,#eef6ff);border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:var(--shadow);margin:22px 0}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}.quick-card{display:block;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 8px 22px rgba(16,32,51,.05)}.quick-card strong{display:block;color:var(--navy);font-size:17px;margin-bottom:4px}.quick-card span{color:var(--muted);font-size:14px}.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.fact{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}.myth,.truth{border-radius:18px;padding:18px;border:1px solid var(--line);background:#fff}.myth{border-left:5px solid #d97938}.truth{border-left:5px solid #0aa66a}.label{font-size:13px;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--muted)}
.sources-box{background:#f8fbff;border:1px solid var(--line);border-radius:22px;padding:22px;margin-top:22px}.sources-box h2{font-size:24px}.sources-box a{color:var(--blue);text-decoration:underline}.term{border-bottom:1px dotted var(--blue);cursor:help}.searchbox{margin-top:16px;display:flex;gap:8px;max-width:420px}.searchbox input{width:100%;border:1px solid var(--line);border-radius:999px;padding:12px 16px;font-size:15px}.searchbox button{border:0;border-radius:999px;padding:12px 16px;background:var(--navy);color:white;font-weight:800}
@media(max-width:900px){.quick-grid{grid-template-columns:1fr}.fact{grid-template-columns:1fr}.searchbox{max-width:100%}}


/* Legal footer */
.footer{max-width:var(--max);margin:auto;padding:34px 18px 48px;color:var(--muted);font-size:14px}
.footer-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 8px 24px rgba(16,32,51,.04)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px;text-align:left}
.footer h3{margin:0 0 8px;color:var(--navy);font-size:18px}.footer a{display:block;color:#36536f;margin:5px 0}.footer a:hover{color:var(--blue);text-decoration:underline}.footer-bottom{border-top:1px solid var(--line);margin-top:18px;padding-top:14px;text-align:center}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr}.footer{text-align:left}}


/* v2.0 navigation and content polish */
.badge{display:inline-block;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--navy);font-weight:800;font-size:13px}.page-title h1{font-size:clamp(34px,5vw,58px)}.section a:not(.btn):not(.quick-card){color:var(--blue);text-decoration:underline}.links a[href="lyme.html"]{display:none}
@media(max-width:900px){.nav{align-items:flex-start;flex-direction:column}.links{display:flex;width:100%;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;padding-bottom:4px}.links a{white-space:nowrap}.topbar{position:sticky}}


/* v2.2 local site search */
.site-search{position:relative;display:flex;align-items:center;gap:7px;min-width:240px;margin-left:auto}.site-search input{width:180px;border:1px solid var(--line);border-radius:999px;padding:9px 12px;font-size:14px;background:#fff}.site-search button{border:0;border-radius:999px;padding:9px 12px;background:var(--navy);color:#fff;font-weight:800;cursor:pointer}.search-results{position:absolute;right:0;top:calc(100% + 8px);width:min(420px,90vw);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:8px;z-index:100}.search-result{display:block;padding:12px;border-radius:14px;text-decoration:none!important;color:var(--text)!important}.search-result:hover{background:var(--soft)}.search-result strong{display:block;color:var(--navy);font-size:15px}.search-result span{display:block;color:var(--muted);font-size:13px;line-height:1.35;margin-top:2px}.search-empty{padding:12px;color:var(--muted);font-size:14px}.site-search:focus-within input{border-color:var(--blue);outline:2px solid rgba(11,94,215,.12)}
@media(max-width:900px){.site-search{width:100%;margin-left:0}.site-search input{width:100%}.site-search button{flex:0 0 auto}.search-results{left:0;right:auto;width:100%}}

.lang-switch{font-weight:900;background:#eef6ff!important;color:var(--navy)!important;border:1px solid var(--line)}


/* v2.5 footer and visible language switch */
.footer-grid-wide{grid-template-columns:1.2fr 1fr 1fr 1fr}
.language-pill{display:flex;align-items:center;gap:8px;white-space:nowrap;border:1px solid rgba(11,94,215,.35);background:linear-gradient(135deg,#0b5ed7,#0aa6b6);color:#fff!important;border-radius:999px;padding:9px 13px;font-weight:900;box-shadow:0 8px 22px rgba(11,94,215,.18)}
.language-pill:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(11,94,215,.24)}
.language-icon{display:grid;place-items:center;min-width:34px;height:34px;border-radius:999px;background:#fff;color:var(--navy);font-size:13px;font-weight:950;letter-spacing:.02em}
.language-label{font-size:14px}
@media(max-width:900px){.footer-grid-wide{grid-template-columns:1fr}.language-pill{width:100%;justify-content:center}.language-label{display:inline}}

/* v3.6 resource and mobile cleanup */
.skip-link{position:absolute;left:-999px;top:8px;background:#fff;color:var(--navy);padding:10px 12px;border-radius:10px;z-index:9999}.skip-link:focus{left:12px;outline:3px solid var(--blue)}
.lang-switch,.language-pill{display:inline-flex!important;align-items:center;justify-content:center;gap:0!important;width:auto!important;min-width:46px;height:38px;padding:0 12px!important;border-radius:999px!important;background:#eef6ff!important;color:var(--navy)!important;border:1px solid var(--line)!important;box-shadow:none!important;font-weight:950!important;white-space:nowrap;text-decoration:none!important}.language-icon{display:block!important;min-width:0!important;height:auto!important;background:transparent!important;color:inherit!important;font-size:14px!important}.language-label{display:none!important}
.nav{position:relative}.brand{min-width:max-content}.links{scrollbar-width:none}.links::-webkit-scrollbar{display:none}
.back-to-top{position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:999px;background:var(--navy);color:white;display:grid;place-items:center;font-weight:900;box-shadow:0 10px 24px rgba(9,43,90,.25);z-index:60}
.diagram-section{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;margin:18px 0;box-shadow:0 8px 24px rgba(16,32,51,.045)}.diagram-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.diagram-mini{background:#f8fbff;border:1px solid var(--line);border-radius:22px;padding:18px}.svg-panel{width:100%;height:auto;display:block}.diagram-list{display:grid;gap:12px}.diagram-list div{background:white;border:1px solid var(--line);border-radius:16px;padding:14px}.diagram-list strong{display:block;color:var(--navy);margin-bottom:4px}.diagram-list span{display:block;color:var(--muted)}
@media(max-width:900px){.nav{display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;padding:12px}.brand{grid-column:1/2}.lang-switch,.language-pill{grid-column:2/3;grid-row:1/2;justify-self:end}.links{grid-column:1/3;display:flex;width:100%;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;padding:4px 0}.site-search{grid-column:1/3;width:100%;margin:0}.hero{padding-top:22px}.diagram-grid{grid-template-columns:1fr}.footer-card{padding:20px}.topbar{position:sticky}}

/* v3.7 cleanup: remove leftover breadcrumb spacing and tighten mobile top area */
.breadcrumbs{display:none!important}
#main-content:focus{outline:none}
@media(max-width:900px){
  .hero{padding-top:18px!important}
  main{padding-top:6px!important}
  .page-title{margin-top:8px!important}
  .site-search{margin-bottom:2px!important}
  .nav{align-items:center!important}
  .brand,.lang-switch,.language-pill{align-self:center!important}
}