/* ============================================================
   BIOTONIX POSTURE — Professional Material  (site styles)
   ============================================================ */
:root{
  --btx-blue:#005297; --btx-navy:#003A6B; --btx-aqua:#00C1E2;
  --btx-grey:#5F6B73; --btx-line:#E8EDF3; --btx-line2:#D8E0E6;
  --btx-soft:#EAF3FA; --btx-page:#EDF1F5;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:var(--btx-page);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1A1A1A;}
img{max-width:100%;}

/* ---------- action bar ---------- */
.btx-actionbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--btx-line2);}
.btx-actionbar__inner{max-width:900px;margin:0 auto;padding:10px 20px;display:flex;
  align-items:center;gap:10px;flex-wrap:wrap;}
.btx-back{margin-right:auto;}
.btx-btn{display:inline-flex;align-items:center;gap:7px;font-family:'Montserrat',sans-serif;
  font-weight:700;font-size:12.5px;letter-spacing:.01em;line-height:1;cursor:pointer;
  border-radius:999px;padding:9px 15px;border:1px solid var(--btx-line2);background:#fff;
  color:var(--btx-navy);text-decoration:none;transition:background .15s,border-color .15s,color .15s,transform .15s;}
.btx-btn svg{width:16px;height:16px;}
.btx-btn:hover{background:var(--btx-soft);border-color:#B4CFE6;color:var(--btx-navy);}
.btx-btn:active{transform:translateY(1px);}
.btx-btn:focus-visible{outline:2px solid var(--btx-aqua);outline-offset:2px;}
.btx-btn--primary{background:var(--btx-blue);border-color:var(--btx-blue);color:#fff;}
.btx-btn--primary:hover{background:var(--btx-navy);border-color:var(--btx-navy);color:#fff;}

/* ---------- document canvas ---------- */
.btx-doc{max-width:900px;margin:26px auto;padding:0 20px;}
.btx-sheet{background:#fff;border:1px solid var(--btx-line2);border-radius:18px;
  box-shadow:0 18px 46px rgba(0,82,151,.07);padding:34px 42px 40px;}
.btx-doc--wide{max-width:880px;}
.btx-doc--wide .btx-flyer{margin:0 auto;box-shadow:0 18px 46px rgba(0,82,151,.10);
  border-radius:18px;overflow:hidden;}
.btx-doc--kit{max-width:1100px;padding:0;margin:0 auto;}

.btx-masthead{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-bottom:12px;margin-bottom:6px;border-bottom:1px solid var(--btx-line2);}
.btx-masthead img{height:22px;display:block;}
.btx-eyebrow{font-family:'Montserrat',sans-serif;font-weight:700;font-size:10px;
  letter-spacing:.08em;text-transform:uppercase;color:var(--btx-grey);text-align:right;}
.btx-docfooter{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:22px;padding-top:12px;border-top:1px solid var(--btx-line);
  font-size:10.5px;color:var(--btx-grey);}

/* ---------- reference-report + asset grids ---------- */
.btx-reportgrid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;}
.btx-assetgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:6px 0 8px;}
.btx-logogrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:6px 0 8px;}
.btx-asset{background:#fff;border:1px solid var(--btx-line2);border-radius:14px;overflow:hidden;
  display:flex;flex-direction:column;}
.btx-asset__thumb{aspect-ratio:4/3;background:#F6F8FA;display:flex;align-items:center;
  justify-content:center;overflow:hidden;}
.btx-asset__thumb img{width:100%;height:100%;object-fit:cover;}
.btx-asset__thumb--logo{padding:16px;}
.btx-asset__thumb--logo img{width:auto;height:auto;max-width:100%;max-height:64px;object-fit:contain;}
.btx-asset__thumb--dark{background:#003A6B;}
.btx-asset__body{padding:11px 13px;display:flex;flex-direction:column;gap:8px;flex:1;}
.btx-asset__name{font-size:11.5px;color:var(--btx-grey);word-break:break-word;line-height:1.4;}
.btx-asset__dl{margin-top:auto;}

/* ---------- site footer ---------- */
.btx-sitefooter{border-top:1px solid var(--btx-line);background:#fff;margin-top:8px;}
.btx-sitefooter__inner{max-width:900px;margin:0 auto;padding:20px;display:flex;gap:16px;
  align-items:center;justify-content:space-between;flex-wrap:wrap;font-size:12.5px;color:var(--btx-grey);}
.btx-sitefooter__brand{font-family:'Montserrat',sans-serif;font-weight:700;font-size:10px;
  letter-spacing:.08em;text-transform:uppercase;color:#A1ABB2;}

/* ---------- toast ---------- */
.btx-toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(14px);
  background:var(--btx-navy);color:#fff;font-family:'Montserrat',sans-serif;font-weight:600;
  font-size:13px;padding:11px 18px;border-radius:999px;box-shadow:0 10px 30px rgba(0,58,107,.28);
  opacity:0;pointer-events:none;transition:opacity .22s,transform .22s;z-index:100;}
.btx-toast.is-visible{opacity:1;transform:translateX(-50%) translateY(0);}

/* ---------- flyer / responsive ---------- */
.btx-flyer{width:100%;max-width:816px;}
@media (max-width:680px){
  .btx-sheet{padding:24px 20px 28px;border-radius:14px;}
  .btx-doc{padding:0 12px;margin:16px auto;}
  .btx-reportgrid{grid-template-columns:1fr;}
  .btx-assetgrid,.btx-logogrid{grid-template-columns:1fr 1fr;}
  .btx-flyer [style*="grid-template-columns: 1fr 264px"]{grid-template-columns:1fr !important;}
  .btx-flyer [style*="grid-template-columns: 1fr 1fr 1fr"]{grid-template-columns:1fr !important;}
  .btx-flyer [style*="grid-template-columns: 1fr 1fr"]{grid-template-columns:1fr !important;}
  .btx-kit [style*="grid-template-columns: 1fr 1fr"]{grid-template-columns:1fr !important;}
  .btx-flyer [style*="padding: 22px 44px"],
  .btx-flyer [style*="padding: 18px 44px"],
  .btx-flyer [style*="padding: 20px 44px"],
  .btx-flyer [style*="padding: 16px 44px"]{padding-left:22px !important;padding-right:22px !important;}
}

/* ---------- print ---------- */
@media print{
  .btx-actionbar,.btx-sitefooter,.btx-noprint,.btx-langswitch{display:none !important;}
  html,body{background:#fff !important;}
  .btx-doc{max-width:100% !important;margin:0 !important;padding:0 !important;}
  .btx-sheet{box-shadow:none !important;border:0 !important;border-radius:0 !important;padding:0 !important;}
  .btx-doc--wide .btx-flyer{box-shadow:none !important;border-radius:0 !important;}
  a{color:#005297 !important;text-decoration:underline;}
  .btx-sheet a[href^="http"]::after,.btx-flyer a[href^="http"]::after{
    content:" (" attr(href) ")";font-size:.82em;color:#5F6B73;word-break:break-all;font-weight:400;}
  h1,h2,h3{break-after:avoid;page-break-after:avoid;}
  img,table,thead,tr{break-inside:avoid;page-break-inside:avoid;}
  [style*="EAF3FA"],[style*="F4F9FD"],[style*="border-radius: 12px"],[style*="border-radius: 20px"],
  .btx-asset,.btx-reportgrid a{break-inside:avoid;page-break-inside:avoid;}
  @page{margin:0.6in;}
}

/* ---------- language switcher ---------- */
.btx-langswitch{background:#fff;border-bottom:1px solid var(--btx-line);}
.btx-langswitch__inner{max-width:900px;margin:0 auto;padding:7px 20px;display:flex;gap:6px;
  justify-content:flex-end;align-items:center;flex-wrap:wrap;}
.btx-langswitch--wide .btx-langswitch__inner{max-width:1056px;}
.btx-langswitch a{font-family:'Montserrat',sans-serif;font-weight:600;font-size:11.5px;letter-spacing:.02em;
  text-decoration:none;color:var(--btx-grey);border:1px solid var(--btx-line2);border-radius:999px;
  padding:4px 11px;transition:background .15s,color .15s,border-color .15s;}
.btx-langswitch a:hover{background:var(--btx-soft);color:var(--btx-navy);border-color:#B4CFE6;}
.btx-langswitch a.is-active{background:var(--btx-navy);color:#fff;border-color:var(--btx-navy);}
.btx-langswitch a:focus-visible{outline:2px solid var(--btx-aqua);outline-offset:2px;}

/* ---------- sample report interpretation — case study cards ---------- */
.btx-case{border:1px solid var(--btx-line);border-radius:16px;padding:22px 24px 10px;margin:14px 0 0;
  background:#fff;box-shadow:0 8px 22px rgba(0,82,151,.04);}
.btx-case__eyebrow{font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;letter-spacing:.08em;
  text-transform:uppercase;color:#00819A;margin-bottom:6px;}
.btx-case__title{font-family:'Montserrat',sans-serif;font-weight:700;font-size:20px;letter-spacing:-.02em;
  color:var(--btx-navy);margin:0 0 6px;line-height:1.2;}
.btx-case__sub{margin:0 0 4px;color:var(--btx-grey);font-size:13.5px;line-height:1.55;}
@media (max-width:680px){.btx-case{padding:18px 18px 8px;}}

/* ============================================================
   HELP & TROUBLESHOOTING pages (modular FAQ / accordion)
   Additive — shared by all /help/ pages.
   ============================================================ */
.hlp-hero{background:radial-gradient(circle at 78% 12%, rgba(0,193,226,.18), rgba(0,193,226,0) 55%),
  repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 80px),
  repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 80px), #003A6B;color:#fff;}
.hlp-hero__inner{max-width:900px;margin:0 auto;padding:44px 32px 40px;}
.hlp-hero__logo{height:28px;display:block;margin-bottom:22px;}
.hlp-hero__eyebrow{font-family:'Montserrat',sans-serif;font-weight:700;font-size:11px;
  letter-spacing:.08em;text-transform:uppercase;color:#00C1E2;margin-bottom:10px;}
.hlp-hero__title{font-family:'Montserrat',sans-serif;font-weight:800;font-size:31px;
  letter-spacing:-.03em;line-height:1.12;margin:0 0 12px;}
.hlp-hero__lede{font-size:15.5px;line-height:1.6;color:#B4CFE6;max-width:660px;margin:0;}

.hlp-wrap{max-width:900px;margin:0 auto;padding:26px 20px 20px;}
.hlp-sec{background:#fff;border:1px solid #D8E0E6;border-radius:18px;box-shadow:0 12px 30px rgba(0,82,151,.05);
  padding:22px 24px;margin:0 0 18px;}
.hlp-sec__title{font-family:'Montserrat',sans-serif;font-weight:700;font-size:18px;letter-spacing:-.02em;
  color:#003A6B;margin:0 0 10px;line-height:1.2;}
.hlp-sec__intro{font-size:13.5px;line-height:1.6;color:#5F6B73;margin:0;}

/* accordion */
.hlp-qa{display:flex;flex-direction:column;gap:10px;}
.hlp-qa__item{border:1px solid #E8EDF3;border-radius:12px;background:#fff;overflow:hidden;
  scroll-margin-top:72px;transition:border-color .18s,box-shadow .18s;}
.hlp-qa__item[open]{border-color:#B4CFE6;box-shadow:0 8px 22px rgba(0,82,151,.06);}
.hlp-qa__q{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 16px;font-family:'Montserrat',sans-serif;font-weight:700;font-size:13.5px;color:#003A6B;line-height:1.35;}
.hlp-qa__q::-webkit-details-marker{display:none;}
.hlp-qa__q::after{content:"";flex:none;width:11px;height:11px;border:solid #005297;border-width:0 2px 2px 0;
  transform:rotate(45deg);margin-top:-3px;transition:transform .2s;}
.hlp-qa__item[open] .hlp-qa__q::after{transform:rotate(-135deg);margin-top:2px;}
.hlp-qa__q:focus-visible{outline:2px solid #00C1E2;outline-offset:2px;border-radius:8px;}
.hlp-qa__a{padding:0 16px 15px;font-size:13px;line-height:1.6;color:#1A1A1A;}
.hlp-qa__a p{margin:0 0 10px;}
.hlp-qa__a p:last-child{margin-bottom:0;}
.hlp-qa__a ul{margin:6px 0 10px;padding-left:20px;}
.hlp-qa__a li{margin-bottom:5px;line-height:1.55;}
.hlp-qa__a a{color:#005297;}
.hlp-qa__a strong{color:#003A6B;}

/* inline resource link button inside an answer */
.hlp-reslink{display:inline-flex;align-items:center;gap:6px;margin-top:4px;font-family:'Montserrat',sans-serif;
  font-weight:700;font-size:12px;padding:8px 13px;border-radius:999px;border:1px solid #B4CFE6;background:#EAF3FA;
  color:#005297;text-decoration:none;transition:background .15s,border-color .15s,color .15s;}
.hlp-reslink:hover{background:#005297;border-color:#005297;color:#fff;}
.hlp-reslink svg{width:14px;height:14px;}
.hlp-reslink--soon{background:#EDF1F5;border-color:#D8E0E6;color:#8A949C;pointer-events:none;cursor:default;}

/* other-topics nav at the bottom of each help page */
.hlp-more{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.hlp-more__link{display:block;text-decoration:none;color:inherit;background:#F6FAFD;border:1px solid #E1EAF1;
  border-radius:14px;padding:14px 16px;transition:box-shadow .18s,transform .18s,border-color .18s;}
.hlp-more__link:hover{box-shadow:0 12px 26px rgba(0,82,151,.09);transform:translateY(-2px);border-color:#B4CFE6;}
.hlp-more__title{font-family:'Montserrat',sans-serif;font-weight:700;font-size:13.5px;color:#003A6B;margin:0 0 3px;}
.hlp-more__desc{font-size:12px;line-height:1.5;color:#5F6B73;margin:0;}

.hlp-support__actions{display:flex;gap:10px;flex-wrap:wrap;}
.hlp-support__meta{font-size:12.5px;color:#5F6B73;margin:14px 0 0;}

@media (max-width:680px){
  .hlp-hero__inner{padding:34px 20px 30px;}
  .hlp-hero__title{font-size:25px;}
  .hlp-wrap{padding:18px 14px 12px;}
  .hlp-sec{padding:18px 18px;}
  .hlp-more{grid-template-columns:1fr;}
}
@media print{
  .hlp-hero{background:#fff !important;color:#003A6B !important;}
  .hlp-hero__eyebrow{color:#005297 !important;}
  .hlp-hero__lede{color:#333B42 !important;}
  .hlp-qa__item{box-shadow:none !important;break-inside:avoid;page-break-inside:avoid;border-color:#D8E0E6 !important;}
  .hlp-qa__a{display:block !important;padding:0 16px 14px !important;}
  .hlp-qa__q::after{display:none !important;}
  .hlp-reslink,.hlp-support__actions,.hlp-more{display:none !important;}
  .hlp-sec{box-shadow:none !important;break-inside:avoid;}
}