/* ===================================================================
   FLEXIGENICS — flexigeniccs.com  (joint support capsule)
   Palette : pine #1F4A35 | pine-dk #143224 | rose #C85A72 | rose-dk #A5445A
             linen #F1F5EF | paper #FFFEFC | slate #4A564E | line #DEE7DC
   Type    : 'Frank Ruhl Libre' (display serif) + 'Be Vietnam Pro' (body)
   Motif   : joint-flex (a joint hinge bending back and forth)
=================================================================== */
:root{
  --fx-pine:#1F4A35; --fx-pine-dk:#143224; --fx-rose:#C85A72; --fx-rose-dk:#A5445A;
  --fx-linen:#F1F5EF; --fx-paper:#FFFEFC; --fx-slate:#4A564E; --fx-line:#DEE7DC;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fx-paper);color:#181F1B;font-family:'Be Vietnam Pro',sans-serif;
  font-size:17px;line-height:1.72;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Frank Ruhl Libre',serif;font-weight:600;line-height:1.2;margin:0 0 .5em;color:var(--fx-pine)}
h1{font-size:clamp(2rem,4.8vw,3.1rem)}
h2{font-size:clamp(1.5rem,3.1vw,2.15rem)}
h3{font-size:1.26rem}
h4{font-family:'Be Vietnam Pro',sans-serif;font-weight:700;font-size:1.0rem;margin:0 0 .5em;color:var(--fx-pine)}
p{margin:0 0 1.1em}
a{color:var(--fx-rose-dk);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.fx-wrap{max-width:1150px;margin:0 auto;padding:0 22px;overflow-wrap:break-word}
.fx-narrow{max-width:820px;margin:0 auto}
.fx-mid{text-align:center}
.fx-eyebrow{display:inline-block;font-family:'Be Vietnam Pro',sans-serif;font-size:.7rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--fx-rose-dk);margin-bottom:.8em}
.fx-pill{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--fx-line);
  border-radius:999px;padding:9px 19px;font-family:'Be Vietnam Pro',sans-serif;font-size:.8rem;font-weight:700;
  color:var(--fx-pine);box-shadow:0 3px 12px rgba(31,74,53,.1)}
.fx-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--fx-pine);
  color:#fff;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;font-size:.96rem;padding:14px 28px;
  border:none;border-radius:9px;cursor:pointer;transition:transform .16s,background .16s;
  box-shadow:0 10px 22px rgba(31,74,53,.3)}
.fx-btn:hover{background:var(--fx-pine-dk);transform:translateY(-2px);color:#fff}
.fx-btn-rose{background:var(--fx-rose);color:#fff;box-shadow:0 10px 22px rgba(200,90,114,.38)}
.fx-btn-rose:hover{background:var(--fx-rose-dk);color:#fff}
.fx-btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#fff;
  border:1px solid var(--fx-line);color:var(--fx-pine);font-family:'Be Vietnam Pro',sans-serif;font-weight:700;
  font-size:.92rem;padding:13px 24px;border-radius:9px;transition:.16s}
.fx-btn-outline:hover{border-color:var(--fx-rose);color:var(--fx-rose-dk)}
.fx-btn-full{width:100%}
.fx-strip{background:var(--fx-pine-dk);color:#A9C2AF;font-size:.76rem;text-align:center;padding:9px 15px}
.fx-strip b{color:#fff}
.fx-strip span{white-space:nowrap;margin:0 10px;display:inline-block}
@media(max-width:580px){.fx-strip{font-size:.68rem}.fx-strip span{white-space:normal;margin:0 6px}}
.fx-nav{position:sticky;top:0;z-index:900;background:rgba(255,254,252,.96);backdrop-filter:blur(9px);
  border-bottom:1px solid var(--fx-line)}
.fx-nav .fx-wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 22px}
.fx-logo{font-family:'Frank Ruhl Libre',serif;font-weight:600;font-size:1.3rem;color:var(--fx-pine);white-space:nowrap}
.fx-logo em{font-style:normal;color:var(--fx-rose-dk)}
.fx-links{display:flex;align-items:center;gap:22px;list-style:none;margin:0;padding:0}
.fx-links a:not(.fx-btn){font-family:'Be Vietnam Pro',sans-serif;font-size:.86rem;font-weight:600;color:#181F1B;opacity:.8}
.fx-links a:not(.fx-btn):hover{opacity:1;color:var(--fx-rose-dk)}
.fx-links .fx-btn{color:#fff;opacity:1;padding:11px 22px}
.fx-toggle{display:none;background:none;border:none;color:var(--fx-pine);font-size:1.5rem;cursor:pointer}
@media(max-width:1020px){
  .fx-links{position:absolute;top:100%;left:0;right:0;background:var(--fx-paper);flex-direction:column;
    align-items:stretch;gap:0;border-top:1px solid var(--fx-line);display:none;max-height:76vh;overflow:auto}
  .fx-links.open{display:flex}
  .fx-links li{border-bottom:1px solid var(--fx-line)}
  .fx-links a{display:block;padding:14px 20px}
  .fx-links .fx-btn{margin:14px 20px;width:calc(100% - 40px);text-align:center}
  .fx-toggle{display:block}
}
.fx-sec{padding:70px 0}
.fx-sec-linen{background:var(--fx-linen)}
.fx-sec-dark{background:var(--fx-pine-dk);color:#A9C2AF}
.fx-sec-dark h2,.fx-sec-dark h3,.fx-sec-dark h4{color:#fff}
.fx-sec-dark .fx-eyebrow{color:#E5A0AE}
.fx-head{max-width:760px;margin:0 auto 42px;text-align:center}
.fx-head p{color:var(--fx-slate)}
.fx-sec-dark .fx-head p{color:#9CB5A2}
.fx-hero{background:var(--fx-linen);border-bottom:1px solid var(--fx-line);padding:48px 0 60px;overflow:hidden}
.fx-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.fx-hero-shot{text-align:center;position:relative}
.fx-hero-shot img{max-width:min(230px,100%);margin:0 auto;filter:drop-shadow(0 26px 42px rgba(31,74,53,.22))}
.fx-hero h1 em{font-style:italic;color:var(--fx-rose-dk)}
@media(max-width:920px){
  .fx-hero-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .fx-hero-copy{display:contents}
  .fx-hero-shot{order:1}
  .fx-hero-title{order:2}
  .fx-hero-rest{order:3}
  .fx-hero-shot img{max-width:min(200px,100%)}
}
.fx-answer{background:#fff;border-radius:12px;padding:22px 24px;margin:0 0 20px;
  box-shadow:0 8px 24px rgba(31,74,53,.1);border-left:4px solid var(--fx-rose)}
.fx-answer .tag{display:block;font-family:'Be Vietnam Pro',sans-serif;font-size:.68rem;font-weight:700;
  letter-spacing:.15em;text-transform:uppercase;color:var(--fx-rose-dk);margin-bottom:8px}
.fx-answer p{margin:0;color:var(--fx-slate)}
.fx-answer p.first{color:var(--fx-pine);font-weight:700;margin-bottom:.7em}
.fx-facts{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 20px;padding:0}
.fx-facts li{background:#fff;border:1px solid var(--fx-line);border-radius:999px;padding:6px 14px;
  font-family:'Be Vietnam Pro',sans-serif;font-size:.78rem;font-weight:700;color:var(--fx-pine)}
.fx-check{list-style:none;margin:0 0 22px;padding:0}
.fx-check li{position:relative;padding-left:28px;margin-bottom:10px;font-size:.94rem;font-weight:700}
.fx-check li::before{content:'\2713';position:absolute;left:0;top:1px;width:19px;height:19px;border-radius:50%;
  background:var(--fx-rose);color:#fff;font-size:.65rem;font-weight:800;display:flex;align-items:center;justify-content:center}
/* ---------- joint-flex signature: a hinge bending back and forth ---------- */
.fx-flex{margin-top:16px;display:flex;flex-direction:column;align-items:center;gap:8px}
.fx-flex-stage{position:relative;width:64px;height:40px}
.fx-flex-stage svg{width:100%;height:100%;display:block;overflow:visible}
.fx-flex-arm{stroke:var(--fx-pine);stroke-width:5;stroke-linecap:round;transform-origin:32px 34px;
  animation:fx-bend 2.6s ease-in-out infinite}
.fx-flex-joint{fill:var(--fx-rose)}
@keyframes fx-bend{
  0%,100%{transform:rotate(0deg)}
  50%{transform:rotate(-24deg)}
}
.fx-flex-cap{color:var(--fx-slate);font-family:'Be Vietnam Pro',sans-serif;font-size:.76rem;font-weight:700}
.fx-grid{display:grid;gap:20px}
.fx-g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.fx-g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.fx-g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:980px){.fx-g4{grid-template-columns:repeat(2,minmax(0,1fr))}.fx-g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.fx-g4,.fx-g3,.fx-g2{grid-template-columns:minmax(0,1fr)}}
.fx-card{background:#fff;border:1px solid var(--fx-line);border-radius:12px;padding:24px 20px}
.fx-card p{color:var(--fx-slate);font-size:.92rem;margin:0}
.fx-sec-dark .fx-card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15)}
.fx-sec-dark .fx-card p{color:#9CB5A2}
.fx-card-badge{text-align:center}
.fx-card-badge img{max-width:min(130px,100%);margin:0 auto 12px}
.fx-idx{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;
  background:var(--fx-pine);color:#fff;font-family:'Be Vietnam Pro',sans-serif;font-weight:700;font-size:.86rem;margin-bottom:12px}
.fx-idx-rose{background:var(--fx-rose);color:#fff}
.fx-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
@media(max-width:920px){.fx-split{grid-template-columns:minmax(0,1fr);gap:26px}}
.fx-split img{max-width:min(500px,100%);margin:0 auto;border-radius:12px}
.fx-split-copy p{color:var(--fx-slate)}
.fx-sec-dark .fx-split-copy p{color:#9CB5A2}
.fx-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media(max-width:760px){.fx-list{grid-template-columns:minmax(0,1fr)}}
.fx-list li{background:#fff;border:1px solid var(--fx-line);border-left:3px solid var(--fx-rose);
  border-radius:0 8px 8px 0;padding:14px 17px;font-size:.9rem;color:var(--fx-slate)}
.fx-list li b{display:block;color:var(--fx-pine);margin-bottom:3px;font-family:'Be Vietnam Pro',sans-serif;font-size:.95rem}
.fx-callout{background:#fff;border:1px solid var(--fx-line);border-radius:10px;padding:20px 22px;font-size:.9rem;color:var(--fx-slate)}
.fx-callout b{color:var(--fx-pine)}
.fx-callout a{color:var(--fx-rose-dk);text-decoration:underline;text-underline-offset:3px}
.fx-flag{background:#FEF0DC;border:1px solid #F2CE99;border-radius:10px;padding:20px 22px;font-size:.88rem;color:#6E4A0E}
.fx-flag b{color:#8A5E12}
.fx-alert{background:#FBEBEC;border:1px solid #E7BFC2;border-radius:10px;padding:20px 22px;font-size:.88rem;color:#7C3033}
.fx-alert b{color:#A2262A}
.fx-rev-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.fx-rev-head img{width:50px;height:50px;border-radius:50%;object-fit:cover;flex-shrink:0}
.fx-rev-name{font-family:'Be Vietnam Pro',sans-serif;font-weight:700;font-size:.92rem;color:var(--fx-pine)}
.fx-rev-sub{font-size:.75rem;color:var(--fx-slate)}
.fx-stars{color:var(--fx-rose-dk);letter-spacing:2px;font-size:.88rem;margin-bottom:7px}
.fx-board{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;text-align:center;margin-top:30px}
@media(max-width:640px){.fx-board{grid-template-columns:minmax(0,1fr)}}
.fx-board b{display:block;font-family:'Frank Ruhl Libre',serif;font-size:1.85rem;color:var(--fx-pine)}
.fx-board span{font-family:'Be Vietnam Pro',sans-serif;font-size:.75rem;font-weight:700;color:var(--fx-slate);
  text-transform:uppercase;letter-spacing:.07em}
.fx-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
@media(max-width:980px){.fx-plans{grid-template-columns:minmax(0,1fr);max-width:420px;margin:0 auto}}
.fx-plan{background:#fff;border:2px solid var(--fx-line);border-radius:14px;padding:26px 20px;text-align:center;
  display:flex;flex-direction:column;position:relative}
.fx-plan.top{border-color:var(--fx-rose);box-shadow:0 22px 42px rgba(200,90,114,.22)}
@media(min-width:981px){.fx-plan.top{transform:translateY(-9px)}}
.fx-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--fx-rose);color:#fff;
  font-family:'Be Vietnam Pro',sans-serif;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:6px 15px;border-radius:999px;white-space:nowrap}
.fx-badge-pine{background:var(--fx-pine);color:#fff}
.fx-plan img.pk{max-width:min(150px,100%);margin:6px auto 14px}
.fx-plan-ttl{font-family:'Frank Ruhl Libre',serif;font-size:1.3rem;color:var(--fx-pine)}
.fx-plan-sub{font-size:.8rem;color:var(--fx-slate);margin-bottom:13px}
.fx-plan-price{font-family:'Frank Ruhl Libre',serif;font-size:2.25rem;color:var(--fx-pine);line-height:1}
.fx-plan-price small{font-family:'Be Vietnam Pro',sans-serif;font-size:.76rem;font-weight:600;color:var(--fx-slate)}
.fx-plan-tot{font-family:'Be Vietnam Pro',sans-serif;font-weight:700;font-size:.94rem;color:var(--fx-pine);margin:8px 0 6px}
.fx-plan-tot s{font-weight:400;color:var(--fx-slate)}
.fx-plan-ship{font-family:'Be Vietnam Pro',sans-serif;font-size:.8rem;font-weight:700;color:#177A5C;margin-bottom:11px}
.fx-plan-ship.pay{color:var(--fx-slate)}
.fx-plan ul{list-style:none;margin:0 0 17px;padding:0;text-align:left;font-size:.85rem;color:var(--fx-slate)}
.fx-plan ul li{position:relative;padding-left:20px;margin-bottom:6px}
.fx-plan ul li::before{content:'\2713';position:absolute;left:0;color:var(--fx-rose-dk);font-weight:800}
.fx-plan .fx-btn{margin-top:auto}
.fx-plan .cards{max-width:min(160px,100%);margin:12px auto 0;opacity:.6}
.fx-guar{display:grid;grid-template-columns:auto minmax(0,1fr);gap:36px;align-items:center;background:#fff;
  border:1px solid var(--fx-line);border-radius:14px;padding:32px}
@media(max-width:800px){.fx-guar{grid-template-columns:minmax(0,1fr);gap:20px;text-align:center;padding:26px 20px}}
.fx-guar img{max-width:min(165px,100%);margin:0 auto}
.fx-guar p{color:var(--fx-slate)}
.fx-steps{display:grid;gap:14px}
.fx-step{background:#fff;border:1px solid var(--fx-line);border-radius:10px;padding:20px 22px;
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:start}
.fx-step .n{width:32px;height:32px;border-radius:8px;background:var(--fx-linen);color:var(--fx-pine);
  font-family:'Be Vietnam Pro',sans-serif;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.88rem}
.fx-step p{margin:0;color:var(--fx-slate);font-size:.9rem}
.fx-faq{border-top:1px solid var(--fx-line)}
.fx-faq-row{border-bottom:1px solid var(--fx-line)}
.fx-faq-btn{width:100%;background:none;border:none;text-align:left;cursor:pointer;padding:18px 3px;
  display:flex;justify-content:space-between;align-items:center;gap:15px;font-family:'Be Vietnam Pro',sans-serif;
  font-weight:700;font-size:1rem;color:var(--fx-pine)}
.fx-faq-btn::after{content:'+';font-size:1.3rem;color:var(--fx-rose-dk);flex-shrink:0;transition:transform .2s}
.fx-faq-row.on .fx-faq-btn::after{transform:rotate(45deg)}
.fx-faq-body{max-height:0;overflow:hidden;transition:max-height .28s ease}
.fx-faq-body p{padding:0 3px 18px;margin:0;color:var(--fx-slate);font-size:.92rem}
.fx-refs{list-style:none;margin:0 0 16px;padding:0}
.fx-refs li{padding:10px 0;border-bottom:1px solid var(--fx-line);font-size:.89rem;color:var(--fx-slate)}
.fx-refs a{font-weight:700;text-decoration:underline;text-underline-offset:3px}
.fx-bonus{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:640px;margin:0 auto}
@media(max-width:580px){.fx-bonus{grid-template-columns:minmax(0,1fr)}}
.fx-bonus-card{background:#fff;border:1px solid var(--fx-line);border-radius:12px;padding:18px;text-align:center}
.fx-bonus-card img{max-width:min(160px,100%);margin:0 auto 14px;border-radius:6px;box-shadow:0 10px 20px rgba(31,74,53,.18)}
.fx-bonus-tag{display:inline-block;background:var(--fx-rose);color:#fff;font-family:'Be Vietnam Pro',sans-serif;
  font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:4px 11px;
  border-radius:999px;margin-bottom:10px}
.fx-bonus-card h4{margin-bottom:6px;font-size:.98rem}
.fx-bonus-card .price{font-size:.82rem;color:var(--fx-slate)}
.fx-bonus-card .price s{opacity:.7}
.fx-bonus-card .price b{color:#177A5C}
.fx-rel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
@media(max-width:760px){.fx-rel{grid-template-columns:minmax(0,1fr)}}
.fx-rel a{display:block;background:#fff;border:1px solid var(--fx-line);border-radius:10px;padding:18px 19px;transition:.18s}
.fx-rel a:hover{border-color:var(--fx-rose);transform:translateY(-2px)}
.fx-rel b{display:block;font-family:'Be Vietnam Pro',sans-serif;font-size:.94rem;color:var(--fx-pine);margin-bottom:4px}
.fx-rel span{font-size:.83rem;color:var(--fx-slate)}
.fx-final{background:linear-gradient(150deg,var(--fx-pine) 0%,var(--fx-pine-dk) 100%);border-radius:18px;
  padding:48px 28px;text-align:center}
.fx-final h2{color:#fff}
.fx-final p{color:#9CB5A2}
.fx-final img{max-width:min(260px,100%);margin:20px auto}
.fx-final .old{color:#9CB5A2;text-decoration:line-through}
.fx-final .new{font-family:'Frank Ruhl Libre',serif;font-size:2.05rem;color:#E5A0AE;margin:4px 0 18px}
.fx-final .sm{font-size:.82rem;color:#9CB5A2;margin-top:14px}
.fx-crumb{font-size:.8rem;color:var(--fx-slate);padding:15px 0 0}
.fx-crumb a{color:var(--fx-rose-dk);font-weight:700}
.fx-crumb i{font-style:normal;margin:0 7px;opacity:.5}
.fx-article h2{margin-top:1.5em}
.fx-article p{color:var(--fx-slate)}
.fx-article a{color:var(--fx-rose-dk);text-decoration:underline;text-underline-offset:3px}
.fx-meta{font-size:.85rem;color:var(--fx-slate);margin-bottom:24px}
.fx-meta a{color:var(--fx-rose-dk);font-weight:700}
.fx-foot{background:var(--fx-pine-dk);color:#7D9584;padding:46px 0 32px;font-size:.86rem}
.fx-foot a{color:#BCD1C1}
.fx-foot a:hover{color:#E5A0AE}
.fx-foot-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:11px 23px;list-style:none;margin:0 0 18px;padding:0;font-family:'Be Vietnam Pro',sans-serif;font-weight:700}
.fx-foot-legal{display:flex;flex-wrap:wrap;justify-content:center;gap:9px 19px;list-style:none;margin:0 0 24px;padding:0;font-size:.82rem}
.fx-foot hr{border:none;border-top:1px solid rgba(255,255,255,.12);margin:20px 0}
.fx-foot p{margin:0 0 13px;line-height:1.65}
.fx-foot .cr{text-align:center;font-size:.82rem;opacity:.85;margin-top:20px}
.fx-sticky{position:fixed;left:0;right:0;bottom:0;z-index:950;background:var(--fx-pine-dk);border-top:2px solid var(--fx-rose);
  padding:9px 15px;display:none;align-items:center;justify-content:space-between;gap:12px;box-shadow:0 -6px 20px rgba(0,0,0,.25)}
.fx-sticky .t{min-width:0;line-height:1.24;color:#fff}
.fx-sticky .t b{display:block;font-size:.9rem;color:#E5A0AE;font-family:'Frank Ruhl Libre',serif}
.fx-sticky .t small{color:#9CB5A2;font-size:.7rem}
.fx-sticky .fx-btn{padding:10px 17px;font-size:.84rem;flex-shrink:0}
@media(max-width:920px){.fx-sticky{display:flex}body{padding-bottom:66px}}