:root{
  --bg:#F7F9FD; --bg2:#EEF3FB; --surface:#FFFFFF; --surface2:#F4F8FE;
  --line:#E4EBF5; --line2:#D6E0EE;
  --teal:#0FB5A1; --teal-dim:#0E9C8B; --blue:#3B82F6; --purple:#7C5CFC; --pink:#EC4F8E; --amber:#F59E0B; --green:#16A34A; --red:#EF4444;
  --txt:#0F1E33; --muted:#566479; --muted2:#8493A8;
  --good:#16A34A; --warn:#D97706;
  --mono:ui-monospace,"SF Mono","Cascadia Code","JetBrains Mono",monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --shadow:0 4px 14px rgba(16,40,80,.06); --shadow-lg:0 18px 50px rgba(16,40,80,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--txt);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.accent{color:var(--teal)}
.mono{font-family:var(--mono)}

/* NAV */
header.site{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(255,255,255,.82);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--txt)}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--blue));display:grid;place-items:center;box-shadow:0 4px 14px rgba(15,181,161,.35)}
.logo .mark svg{width:18px;height:18px}
.nav-links{display:flex;gap:28px;font-size:14.5px;color:var(--muted);font-weight:600}
.nav-links a:hover{color:var(--teal)}
.nav-cta{display:flex;gap:12px;align-items:center}
.btn{font-weight:700;font-size:14.5px;padding:10px 18px;border-radius:11px;cursor:pointer;border:1px solid transparent;transition:.18s;font-family:var(--sans);display:inline-block}
.btn-ghost{color:var(--txt);border-color:var(--line2);background:#fff}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--blue));color:#fff;box-shadow:0 6px 18px rgba(15,181,161,.30)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(59,130,246,.34)}
.btn-lg{padding:14px 26px;font-size:15.5px}

/* HERO */
.hero{position:relative;padding:70px 0 56px;overflow:hidden}
.glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;pointer-events:none}
.g1{width:480px;height:480px;background:radial-gradient(circle,rgba(15,181,161,.30),transparent 65%);top:-150px;right:-120px}
.g2{width:440px;height:440px;background:radial-gradient(circle,rgba(124,92,252,.22),transparent 65%);bottom:-200px;left:-160px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;position:relative;z-index:2}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--teal);background:rgba(15,181,161,.10);border:1px solid rgba(15,181,161,.25);padding:7px 14px;border-radius:100px;margin-bottom:22px}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
h1{font-size:54px;line-height:1.05;letter-spacing:-.035em;font-weight:800;margin-bottom:20px;color:var(--txt)}
h1 .grad,.grad{background:linear-gradient(120deg,var(--teal),var(--blue) 55%,var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{font-size:18.5px;color:var(--muted);max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;margin-bottom:30px}
.trust-row{display:flex;gap:26px;align-items:center;font-size:13px;color:var(--muted2);flex-wrap:wrap}
.trust-row b{color:var(--txt);font-weight:800}
.trust-row .sep{width:1px;height:30px;background:var(--line2)}

/* PANEL / CHART CARD */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.panel-head .t{font-weight:700;font-size:15px;display:flex;align-items:center;gap:9px;color:var(--txt)}
.panel-head .t .ic{width:26px;height:26px;border-radius:8px;background:rgba(15,181,161,.12);display:grid;place-items:center;color:var(--teal)}
.tag-cited{font-size:11px;font-weight:800;color:var(--good);background:rgba(22,163,74,.10);border:1px solid rgba(22,163,74,.25);padding:4px 10px;border-radius:7px;display:inline-flex;align-items:center;gap:5px}
table.dose{width:100%;border-collapse:collapse;font-size:13.5px}
table.dose th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted2);font-weight:700;padding:12px 20px;border-bottom:1px solid var(--line)}
table.dose td{padding:13px 20px;border-bottom:1px solid var(--line)}
table.dose tr:last-child td{border-bottom:none}
table.dose tbody tr:hover{background:var(--surface2)}
table.dose .goal{font-weight:700;color:var(--txt)}
table.dose .val{font-family:var(--mono);color:var(--teal-dim);font-weight:700}
table.dose .freq{color:var(--muted)}
.cite{font-size:11px;color:var(--blue);font-family:var(--mono)}
.spark{display:block;width:100%;height:54px}

/* CALC mini */
.calc{margin-top:18px}
.calc .panel-head .t .ic{background:rgba(59,130,246,.12);color:var(--blue)}
.calc-body{padding:18px 20px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted2);font-weight:700;margin-bottom:6px}
.field .inp{background:#fff;border:1px solid var(--line2);border-radius:10px;padding:10px 12px;font-family:var(--mono);font-size:14px;color:var(--txt);display:flex;justify-content:space-between;align-items:center;width:100%}
.field input.inp,.field select.inp{outline:none}
.field input.inp:focus,.field select.inp:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,181,161,.12)}
.field .inp span.u{color:var(--muted2);font-size:12px}
.calc-out{grid-column:1/-1;background:linear-gradient(135deg,rgba(15,181,161,.12),rgba(59,130,246,.10));border:1px solid rgba(15,181,161,.25);border-radius:12px;padding:14px 16px;display:flex;justify-content:space-between;align-items:center}
.calc-out .lab{font-size:12px;color:var(--muted)}
.calc-out .res{font-family:var(--mono);font-size:24px;font-weight:800;color:var(--teal-dim)}
.calc-out .res small{font-size:13px;color:var(--muted);font-weight:600}

/* TRUST band */
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2);padding:22px 0;margin-top:30px}
.band-in{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap;color:var(--muted2);font-size:13.5px;font-weight:700}
.band-in .src{display:flex;align-items:center;gap:9px}
.band-in .src svg{width:18px;height:18px;color:var(--teal)}

/* SECTION */
section.blk{padding:74px 0}
.eyebrow{font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-bottom:14px;text-align:center}
h2{font-size:38px;letter-spacing:-.03em;font-weight:800;text-align:center;margin-bottom:14px;color:var(--txt)}
.lead{text-align:center;color:var(--muted);font-size:17px;max-width:580px;margin:0 auto 46px}

/* peptide grid — colorful cards */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;transition:.2s;cursor:pointer;position:relative;overflow:hidden;display:block;color:inherit;box-shadow:var(--shadow)}
.pcard::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--teal),var(--blue))}
.pcard:nth-child(4n+2)::before{background:linear-gradient(90deg,var(--purple),var(--pink))}
.pcard:nth-child(4n+3)::before{background:linear-gradient(90deg,var(--amber),var(--pink))}
.pcard:nth-child(4n+4)::before{background:linear-gradient(90deg,var(--blue),var(--teal))}
.pcard:hover{border-color:var(--line2);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.pcard .top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px}
.pcard .nm{font-weight:800;font-size:16.5px;letter-spacing:-.01em;color:var(--txt)}
.pcard .cat{font-size:11px;color:var(--muted2);font-weight:700;margin-top:3px;text-transform:uppercase;letter-spacing:.03em}
.pcard .vol{font-size:11px;font-family:var(--mono);color:var(--teal-dim);background:rgba(15,181,161,.10);padding:3px 8px;border-radius:7px;font-weight:700}
.pcard .mini{display:flex;gap:14px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;align-items:center}
.pcard .mini b{color:var(--txt);font-family:var(--mono);font-weight:700}

/* feature row — colorful icons */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:10px}
.fcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}
.fcard .fi{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px}
.fcard:nth-child(1) .fi{background:rgba(15,181,161,.12);color:var(--teal)}
.fcard:nth-child(2) .fi{background:rgba(124,92,252,.12);color:var(--purple)}
.fcard:nth-child(3) .fi{background:rgba(236,79,142,.12);color:var(--pink)}
.fcard h3{font-size:18px;font-weight:800;margin-bottom:9px;letter-spacing:-.01em;color:var(--txt)}
.fcard p{font-size:14.5px;color:var(--muted)}

/* CTA */
.cta-final{margin:30px auto 80px;max-width:1180px;padding:0 28px}
.cta-box{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--teal),var(--blue) 55%,var(--purple));border-radius:24px;padding:54px;text-align:center;color:#fff;box-shadow:0 20px 50px rgba(59,130,246,.28)}
.cta-box .eyebrow{color:rgba(255,255,255,.85)}
.cta-box h2{font-size:34px;margin-bottom:12px;color:#fff}
.cta-box p{color:rgba(255,255,255,.9);font-size:16.5px;margin-bottom:26px}
.cta-box .btn-primary{background:#fff;color:var(--teal-dim)}
.cta-box .btn-primary:hover{background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.18)}

/* generic page */
.page{padding:48px 0 70px}
.page h1{font-size:40px;margin-bottom:14px}
.crumbs{font-size:13px;color:var(--muted2);margin-bottom:18px;font-weight:600}
.crumbs a:hover{color:var(--teal)}
.prose{color:var(--muted);font-size:16px;max-width:760px}
.prose p{margin-bottom:16px}
.disclaimer{margin-top:30px;font-size:12.5px;color:var(--muted);background:#FFFBEB;border:1px solid #FDE9C8;border-radius:12px;padding:14px 18px}

footer.site{border-top:1px solid var(--line);padding:44px 0;color:var(--muted);font-size:13.5px;background:var(--surface)}
.foot-in{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:24px}
.foot-col h4{color:var(--txt);font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px;font-weight:800}
.foot-col a{display:block;color:var(--muted);margin-bottom:7px}
.foot-col a:hover{color:var(--teal)}
.disc{font-size:12px;color:var(--muted2);max-width:560px}

/* social links */
.social{display:flex;gap:10px;margin-top:14px}
.social a{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--bg2);color:var(--muted);border:1px solid var(--line);transition:.18s}
.social a:hover{color:#fff;border-color:transparent;transform:translateY(-2px)}
.social a[data-net="x"]:hover{background:#0F1419}
.social a[data-net="instagram"]:hover{background:linear-gradient(45deg,#F58529,#DD2A7B,#8134AF)}
.social a[data-net="facebook"]:hover{background:#1877F2}
.social a[data-net="youtube"]:hover{background:#FF0000}
.social a[data-net="reddit"]:hover{background:#FF4500}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr}.pgrid{grid-template-columns:repeat(2,1fr)}
  .feat{grid-template-columns:1fr}h1{font-size:40px}.nav-links{display:none}
}

/* ===== Chart guide page ===== */
.chart-layout{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
.chart-main{min-width:0}
.lead-p{font-size:18px;color:var(--muted);margin-bottom:20px;max-width:680px}
.panel-head .ic svg{display:block}
.ev{font-size:11px;font-weight:800;padding:3px 8px;border-radius:7px;border:1px solid}
.quickfacts{display:flex;flex-wrap:wrap;gap:10px}
.quickfacts>div{display:flex;flex-direction:column;gap:3px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;min-width:120px;box-shadow:var(--shadow)}
.quickfacts span{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--muted2);text-transform:uppercase;letter-spacing:.04em;font-weight:700}
.quickfacts span svg{color:var(--teal)}
.quickfacts b{font-size:14px;color:var(--txt)}

/* guide prose */
.guide{margin:38px 0 10px;max-width:760px}
.guide h2{text-align:left;font-size:26px;letter-spacing:-.02em;margin:34px 0 14px;scroll-margin-top:84px;color:var(--txt)}
.guide h3{font-size:18px;font-weight:800;margin:22px 0 8px;color:var(--txt)}
.guide p{color:#3C4A5E;font-size:16px;line-height:1.75;margin-bottom:15px}
.guide ul,.guide ol{margin:0 0 15px 20px;color:#3C4A5E;font-size:16px;line-height:1.75}
.guide li{margin-bottom:7px}
.guide a{color:var(--teal-dim);text-decoration:none;border-bottom:1px solid rgba(15,181,161,.35);font-weight:600}
.guide a:hover{border-color:var(--teal)}
.guide sup{font-size:11px;color:var(--blue);font-weight:700;padding:0 1px}
.guide sup a{color:var(--blue);border:none}
.sources-list{font-size:13.5px;color:var(--muted)}
.sources-list li{margin-bottom:8px}
.sources-list a{color:var(--blue);border:none}

.faq-block{margin-top:42px}
.faq-block h2,.related h2{font-size:26px;margin-bottom:16px}
.faq-item{padding:18px 22px;margin-bottom:12px}
.faq-q{font-weight:800;font-size:16px;margin-bottom:6px;color:var(--txt)}
.faq-a{margin:0;font-size:15px;color:var(--muted)}
.faq-a sup{color:var(--blue);font-size:11px;font-weight:700}

.related{margin-top:42px}
.rel-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* sidebar */
.chart-side{display:flex;flex-direction:column;gap:14px}
.sticky-side{position:sticky;top:88px}
.cta-buy{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-align:center}
.onpage{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.onpage-h{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted2);font-weight:800;margin-bottom:10px}
.onpage a{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;padding:6px 0}
.onpage a:hover{color:var(--teal)}

@media(max-width:960px){.chart-layout{grid-template-columns:1fr}.sticky-side{position:static}.rel-grid{grid-template-columns:1fr}}

.lang-switch{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.lang-switch a{font-size:11px;font-weight:700;color:var(--muted2);border:1px solid var(--line2);border-radius:7px;padding:4px 9px;background:#fff}
.lang-switch a:hover{color:var(--teal);border-color:var(--teal)}
.lang-switch a.on{color:#fff;background:linear-gradient(135deg,var(--teal),var(--blue));border-color:transparent}

/* ===== Blog ===== */
.blog-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.blog-main{min-width:0;max-width:760px}
.blog-side{display:flex;flex-direction:column;gap:16px}
.blog-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;color:var(--muted2);font-size:13px;font-weight:600;margin:6px 0 22px}
.blog-meta span{display:flex;align-items:center;gap:6px}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.toc .onpage-h{margin-bottom:12px}
.toc a{display:block;color:var(--muted);font-size:13.5px;padding:5px 0;border-left:2px solid var(--line);padding-left:12px;margin-left:2px}
.toc a:hover{color:var(--teal);border-color:var(--teal)}
.cat-list{display:flex;flex-direction:column;gap:6px}
.cat-list a{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-radius:9px;font-size:13.5px;font-weight:600;color:var(--muted);background:var(--bg2)}
.cat-list a:hover{color:var(--txt);background:var(--surface2)}
.cat-list .cdot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:8px}
.share{display:flex;gap:8px;flex-wrap:wrap}
.share a{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:7px 12px;border-radius:9px;border:1px solid var(--line2);color:var(--muted)}
.share a:hover{color:var(--teal);border-color:var(--teal)}
.tldr-box{background:linear-gradient(135deg,rgba(15,181,161,.08),rgba(124,92,252,.07));border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:18px 0}
@media(max-width:960px){.blog-layout{grid-template-columns:1fr}}

/* ============== Mobile app-style nav ============== */
.tabbar{display:none}
.msheet{display:none}
@media(max-width:760px){
  /* clearance for the fixed bottom bar — ONE source of bottom space (no footer margin) */
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}
  footer.site{margin-bottom:0}
  /* simplify top header — bottom bar handles nav */
  header.site nav{height:58px}
  .nav-cta{display:none}

  /* bottom tab bar — own compositor layer so it doesn't jump when the browser
     toolbar shows/hides during scroll */
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -3px 16px rgba(16,40,80,.07);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom));justify-content:space-around;align-items:flex-end;
    transform:translateZ(0);will-change:transform;-webkit-backface-visibility:hidden}
  .tab{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border:none;
    color:var(--muted2);font-size:10px;font-weight:700;padding:6px 2px;cursor:pointer;text-decoration:none;font-family:var(--sans)}
  .tab svg{stroke-width:1.9}
  .tab.on{color:var(--teal)}
  .tab span{line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
  .tab-mid{flex:0 0 auto;position:relative;margin-top:-20px}
  /* white halo behind the raised FAB so page content never shows through */
  .tab-mid::before{content:"";position:absolute;left:50%;top:-14px;transform:translateX(-50%);width:70px;height:70px;background:#fff;border-radius:50%;z-index:0}
  .tab-fab{position:relative;z-index:1;display:grid;place-items:center;width:56px;height:56px;border-radius:50%;
    background:linear-gradient(135deg,var(--teal),var(--blue));color:#fff;box-shadow:0 6px 18px rgba(15,181,161,.4)}

  /* slide-over sheet */
  .msheet{display:block;position:fixed;inset:0;z-index:80}
  .msheet[hidden]{display:none}
  .msheet-back{position:absolute;inset:0;background:rgba(8,20,40,.45);opacity:0;transition:opacity .2s}
  .msheet-panel{position:absolute;right:0;top:0;bottom:0;width:84%;max-width:340px;background:var(--surface);
    box-shadow:-20px 0 50px rgba(8,20,40,.25);transform:translateX(100%);transition:transform .22s ease;
    display:flex;flex-direction:column;padding:18px 18px calc(18px + env(safe-area-inset-bottom));overflow-y:auto}
  .msheet.show .msheet-back{opacity:1}
  .msheet.show .msheet-panel{transform:translateX(0)}
  .msheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .msheet-x{background:var(--bg2);border:1px solid var(--line);border-radius:10px;width:36px;height:36px;display:grid;place-items:center;color:var(--muted)}
  .msheet-links a{display:flex;align-items:center;gap:12px;padding:13px 12px;border-radius:12px;font-weight:700;font-size:16px;color:var(--txt)}
  .msheet-links a:active{background:var(--surface2)}
  .msheet-links a svg{color:var(--teal)}
  .msheet-sub{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
  .msheet-sub a{padding:9px 12px;color:var(--muted);font-size:14px}
  .msheet-langs{display:flex;gap:8px;margin-top:16px}
  .msheet-langs a{flex:1;text-align:center;padding:9px;border:1px solid var(--line2);border-radius:10px;font-weight:800;font-size:12px;color:var(--muted)}
  .msheet-langs a.on{background:linear-gradient(135deg,var(--teal),var(--blue));color:#fff;border-color:transparent}
}

/* ============== Responsive refinements (app feel) ============== */
@media(max-width:760px){
  .wrap{padding:0 18px}
  h1{font-size:33px}
  .hero{padding:30px 0 32px}
  .hero-grid{gap:30px}
  .sub{font-size:16.5px}
  section.blk{padding:44px 0}
  h2{font-size:27px}
  .lead{font-size:15.5px;margin-bottom:30px}
  .page{padding:24px 0 40px}
  .page h1{font-size:30px}
  /* dosage table scrolls horizontally instead of squishing */
  .panel{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.dose{min-width:520px}
  /* bigger tap targets */
  .btn{padding:13px 20px}
  .btn-lg{padding:15px 24px}
  .field .inp,.field input.inp,.field select.inp{padding:13px 12px;font-size:16px}  /* 16px = no iOS zoom */
  .quickfacts>div{flex:1 1 calc(50% - 5px);min-width:0}
  .cta-box{padding:36px 22px}
  .cta-box h2{font-size:26px}
  .feat{gap:14px}
  .rel-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .pgrid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%;text-align:center}
}

/* ===== Language switcher (header) ===== */
.langsw{position:relative}
.langsw-btn{display:flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line2);border-radius:11px;
  padding:7px 10px;font-weight:700;font-size:13px;color:var(--txt);cursor:pointer;font-family:var(--sans)}
.langsw-btn:hover{border-color:var(--teal)}
.langsw-btn svg:last-child{color:var(--muted2);transition:transform .18s}
.langsw.open .langsw-btn svg:last-child{transform:rotate(180deg)}
.langsw-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:210px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:.16s;z-index:70}
.langsw.open .langsw-menu{opacity:1;visibility:visible;transform:translateY(0)}
.langsw-menu a{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:9px;color:var(--txt);font-size:14px;font-weight:600}
.langsw-menu a:hover{background:var(--surface2)}
.langsw-menu a.on{background:rgba(15,181,161,.10)}
.langsw-menu a span{flex:1}
.langsw-menu a b{color:var(--muted2);font-size:11px;font-weight:800;letter-spacing:.04em}
.flag{flex:0 0 auto}

/* flags inside footer + mobile-menu switchers */
.lang-switch a{display:inline-flex;align-items:center;gap:6px}
.lang-switch a .flag{box-shadow:0 0 0 1px rgba(16,40,80,.12)}
.msheet-langs a{display:inline-flex;align-items:center;justify-content:center;gap:6px}

/* ====================================================================
   PROFESSIONAL MOBILE REDESIGN (app-style) — overrides earlier mobile
   ==================================================================== */
@media(max-width:760px){
  .wrap{padding:0 16px}

  /* Typography — smaller, tighter, clear hierarchy */
  h1{font-size:25px;line-height:1.15;letter-spacing:-.02em;margin-bottom:13px}
  .page h1{font-size:24px}
  .sub{font-size:14.5px;line-height:1.55;margin-bottom:20px}
  h2{font-size:20px;letter-spacing:-.02em;margin-bottom:9px}
  .lead{font-size:14px;margin-bottom:24px}
  .lead-p{font-size:15px;line-height:1.5;margin-bottom:16px}
  .eyebrow{font-size:11px;margin-bottom:9px}
  .crumbs{font-size:12px;margin-bottom:14px}

  /* Hero — leaner; drop the demo calculator (real one is a tap away) */
  .hero{padding:22px 0 26px}
  .hero-grid{gap:20px}
  .hero .panel{display:none}            /* hide both demo cards (chart + calc) on mobile — leaner hero */
  .hero-grid{grid-template-columns:1fr}
  .pill{font-size:11px;padding:6px 12px;margin-bottom:15px}
  .hero-cta{gap:10px;margin-bottom:22px}
  .trust-row{gap:14px;font-size:11.5px}
  .trust-row .sep{height:22px}

  /* Section rhythm */
  section.blk{padding:36px 0}
  .cta-final{margin:24px auto 56px}
  .cta-box{padding:30px 20px;border-radius:20px}
  .cta-box h2{font-size:22px}
  .cta-box p{font-size:14px;margin-bottom:20px}

  /* Cards / panels */
  .panel{overflow:visible}
  .panel-head{padding:13px 15px}
  .panel-head .t{font-size:13.5px}
  .calc-body{padding:14px 15px;gap:11px}
  .calc-out .res{font-size:21px}
  .pcard{padding:15px 16px;border-radius:14px}
  .pcard .nm{font-size:15px}
  .pcard .cat{font-size:10px}
  .pcard .mini{font-size:11.5px;padding-top:10px}
  .fcard{padding:20px}
  .fcard h3{font-size:16.5px}
  .fcard p{font-size:13.5px}
  .quickfacts{gap:8px}
  .quickfacts>div{flex:1 1 calc(50% - 4px);min-width:0;padding:9px 12px;border-radius:11px}
  .quickfacts span{font-size:10px}
  .quickfacts b{font-size:13px}

  /* Guide / blog prose */
  .guide p,.guide ul,.guide ol,.prose{font-size:14.5px;line-height:1.62}
  .guide{margin-top:30px}
  .guide h2{font-size:19px;margin:26px 0 10px}
  .guide h3{font-size:16px;margin:18px 0 7px}
  .faq-block{margin-top:32px}
  .faq-block h2,.related h2{font-size:20px;margin-bottom:13px}
  .faq-item{padding:15px 17px}
  .faq-q{font-size:14.5px}.faq-a{font-size:13.5px}
  .tldr-box{padding:14px 16px;margin:14px 0}
  .blog-meta{font-size:12px;gap:10px;margin:4px 0 18px}
  .disclaimer{font-size:12px;padding:12px 14px;margin-top:22px}

  /* DOSAGE TABLE -> stacked cards (app-style, no horizontal scroll) */
  table.dose{min-width:0;display:block}
  table.dose thead{display:none}
  table.dose tbody{display:block;padding:8px}
  table.dose tr{display:block;border:1px solid var(--line);border-radius:13px;padding:13px 15px;margin-bottom:10px;background:#fff;box-shadow:var(--shadow)}
  table.dose tbody tr:hover{background:#fff}
  table.dose tr:last-child{margin-bottom:0}
  table.dose td{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:5px 0;border:none;font-size:13.5px}
  table.dose td::before{content:attr(data-label);color:var(--muted2);font-size:10.5px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;flex:0 0 auto;padding-top:1px}
  table.dose td.goal{display:block;font-size:15px;font-weight:800;color:var(--txt);padding:0 0 9px;margin-bottom:6px;border-bottom:1px solid var(--line)}
  table.dose td.goal::before{display:none}
  table.dose td.val{color:var(--teal-dim);font-weight:800}
  table.dose td>*{text-align:right}
  table.dose td .ev{margin-left:auto}
}
@media(max-width:430px){
  h1{font-size:23px}
  .page h1{font-size:22px}
  .pgrid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}.hero-cta .btn{width:100%;text-align:center}
  .feat{grid-template-columns:1fr}
}

/* Blog post title — responsive (was inline 38px) */
.post-title{font-size:34px;line-height:1.13;letter-spacing:-.025em;margin-bottom:6px;color:var(--txt)}
@media(max-width:760px){ .post-title{font-size:23px;line-height:1.18} }
@media(max-width:430px){ .post-title{font-size:21px} }

/* ===== Restructured header: Logo | Search | Flag + secondary nav bar ===== */
nav{gap:20px}
.logo{flex:0 0 auto}
.hdr-search{flex:1 1 auto;max-width:520px;position:relative;display:flex;align-items:center;gap:8px;
  background:var(--surface2);border:1px solid var(--line2);border-radius:12px;padding:0 12px;height:42px}
.hdr-search:focus-within{border-color:var(--teal);background:#fff;box-shadow:0 0 0 3px rgba(15,181,161,.10)}
.hs-ic{color:var(--muted2);display:flex;flex:0 0 auto}
.hdr-search input{flex:1;min-width:0;border:none;background:none;outline:none;font-family:var(--sans);font-size:14.5px;color:var(--txt);height:100%}
.hs-drop{position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:6px;z-index:75;max-height:64vh;overflow:auto}
.hs-drop a{display:flex;flex-direction:column;gap:2px;padding:9px 12px;border-radius:9px;color:var(--txt)}
.hs-drop a:hover{background:var(--surface2)}
.hd-t{font-weight:700;font-size:14px}
.hd-s{font-size:11px;color:var(--muted2);text-transform:uppercase;letter-spacing:.03em;font-weight:700}
.hdr-right{flex:0 0 auto;display:flex;align-items:center;gap:10px}

.subnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:68px;z-index:49}
.subnav .wrap{display:flex;align-items:center;justify-content:space-between;height:46px}
.subnav-links{display:flex;gap:26px;font-size:14px;font-weight:600;color:var(--muted)}
.subnav-links a:hover{color:var(--teal)}
.subnav-cta{padding:7px 16px;font-size:13.5px;border-radius:9px}

/* search results page form */
.search-page-form{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line2);border-radius:14px;padding:6px 6px 6px 14px;max-width:640px;box-shadow:var(--shadow)}
.search-page-form .sp-ic{color:var(--muted2);display:flex}
.search-page-form input{flex:1;border:none;outline:none;font-size:16px;font-family:var(--sans);color:var(--txt);background:none;padding:8px 0}

@media(max-width:760px){
  .subnav{display:none}
  .logo-txt{display:none}
  nav{gap:10px}
  .hdr-search{height:38px;max-width:none}
  .hdr-search input{font-size:16px}
  .langsw-code{display:none}
  .langsw-btn{padding:7px 8px;gap:5px}
}

/* mobile header: let the search shrink so logo|search|flag always fit */
@media(max-width:760px){
  header.site nav{min-width:0;flex-wrap:nowrap}
  .hdr-search{flex:1 1 0%;min-width:0}
  .hdr-search input{width:100%;min-width:0}
  .hdr-right{flex:0 0 auto}
  .wrap{overflow:visible}
}

/* ===== Calculator page layout ===== */
.calc-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;max-width:900px}
@media(max-width:760px){
  .calc-cols{grid-template-columns:1fr;gap:16px}     /* stack calculator + "how it works" */
  .calc-body{grid-template-columns:1fr}              /* one field per row — no squeeze */
  .calc-out{flex-wrap:wrap;gap:4px}
  /* blend-entry table stays a real (scrollable) table, NOT dose-cards */
  #mode-blend .panel{overflow-x:auto;-webkit-overflow-scrolling:touch}
  #b_table{display:table;min-width:430px;width:100%}
  #b_table thead{display:table-header-group}
  #b_table tbody{display:table-row-group;padding:0}
  #b_table tr{display:table-row;border:none;border-radius:0;padding:0;margin:0;box-shadow:none;background:none}
  #b_table td{display:table-cell;border:none;border-bottom:1px solid var(--line);padding:8px 6px;font-size:12.5px}
  #b_table td::before{content:none}
  #b_table td.goal{display:table-cell;border:none;margin:0;padding:8px 6px;font-size:12.5px;font-weight:600}
  #b_table .inp{padding:7px 8px}
}