/* ===================================================================
   STEEL FLOW PRO — steelfloowpro.com
   Palette : ink #1B3A5C | ink-dk #12283F | crimson #B8232F | crimson-dk #921B26
             steel #4A5A6B | grey #F2F4F6 | sand #E8ECEF | slate #56626E
             line #DCE2E7
   Type    : 'Oswald' (600/700 display, condensed bold) + 'Karla' (body)
             — a strong, industrial pairing distinct from every prior
             build this session
   Motif   : flow gauge — a dial needle sweeps from a "restricted" red
             zone to an "optimal flow" blue zone, literally illustrating
             the product's own "Flow" name; distinct from every other
             signature used this session
   Layout  : HERO IMAGE ON THE LEFT
   Tone    : direct, respectful, realistic about gradual results —
             structure-function language only, never a prostate-disease
             cure or treatment claim
   Rules   : grids minmax(0,1fr) · flex min-width:0 · img max-width min(Npx,100%)
             mobile hero order = IMAGE first, then H1, then rest
=================================================================== */

:root{
  --ink:#1B3A5C;
  --ink-dk:#12283F;
  --crimson:#B8232F;
  --crimson-dk:#921B26;
  --steel:#4A5A6B;
  --grey:#F2F4F6;
  --sand:#E8ECEF;
  --slate:#56626E;
  --line:#DCE2E7;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--grey);color:#1E2733;
  font-family:'Karla',system-ui,sans-serif;font-size:17px;line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Oswald',sans-serif;font-weight:700;line-height:1.2;margin:0 0 .5em;
  color:var(--ink);text-transform:none;overflow-wrap:break-word;word-break:break-word}
h1{font-size:clamp(2rem,4.8vw,2.95rem)}
h2{font-size:clamp(1.5rem,3vw,2rem)}
h3{font-size:1.2rem}
h4{font-family:'Oswald',sans-serif;font-weight:600;font-size:1rem;margin:0 0 .5em;color:var(--ink)}
p{margin:0 0 1.15em}
a{color:inherit;text-decoration:none}
strong,b{color:var(--ink)}
img{max-width:100%;height:auto;display:block}
.sfp-wrap{max-width:1160px;margin:0 auto;padding:0 22px}
.sfp-narrow{max-width:830px;margin:0 auto}
.sfp-mid{text-align:center}

.sfp-eyebrow{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.15em;
  text-transform:uppercase;color:var(--crimson);margin-bottom:.8em}
.sfp-pill{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:9px 19px;font-size:.8rem;font-weight:700;color:var(--ink);
  box-shadow:0 4px 14px rgba(27,58,92,.06)}

/* ---------- buttons ---------- */
.sfp-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--ink);color:#fff;font-family:'Oswald',sans-serif;font-weight:600;font-size:1rem;
  letter-spacing:.02em;padding:15px 30px;border:none;border-radius:5px;cursor:pointer;
  transition:transform .16s,box-shadow .16s,background .16s;
  box-shadow:0 10px 24px rgba(27,58,92,.26)}
.sfp-btn:hover{background:var(--ink-dk);transform:translateY(-2px);color:#fff}
.sfp-btn-red{background:var(--crimson);box-shadow:0 10px 24px rgba(184,35,47,.32)}
.sfp-btn-red:hover{background:var(--crimson-dk)}
.sfp-btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-family:'Oswald',sans-serif;font-weight:600;font-size:.95rem;padding:14px 26px;border-radius:5px;transition:.16s}
.sfp-btn-ghost:hover{border-color:var(--crimson);color:var(--crimson)}
.sfp-btn-full{width:100%}

/* ---------- top bar ---------- */
.sfp-strip{background:var(--ink-dk);color:#B7C3CF;font-size:.76rem;text-align:center;padding:9px 16px}
.sfp-strip b{color:var(--crimson)}
.sfp-strip span{white-space:nowrap;margin:0 10px;display:inline-block}
@media(max-width:580px){.sfp-strip{font-size:.7rem;line-height:1.55}.sfp-strip span{white-space:normal;margin:0 6px}}

/* ---------- nav ---------- */
.sfp-nav{position:sticky;top:0;z-index:900;background:rgba(242,244,246,.95);backdrop-filter:blur(9px);
  border-bottom:1px solid var(--line)}
.sfp-nav .sfp-wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 22px}
.sfp-logo{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.26rem;color:var(--ink);white-space:nowrap;
  letter-spacing:.01em}
.sfp-logo em{font-style:normal;color:var(--crimson)}
.sfp-links{display:flex;align-items:center;gap:24px;list-style:none;margin:0;padding:0}
.sfp-links a{font-size:.89rem;font-weight:700;color:var(--ink);opacity:.8}
.sfp-links a:hover{opacity:1;color:var(--crimson)}
.sfp-links a.sfp-btn,.sfp-links a.sfp-btn:hover{color:#fff;opacity:1}
.sfp-toggle{display:none;background:none;border:none;color:var(--ink);font-size:1.5rem;cursor:pointer;line-height:1}
@media(max-width:1020px){
  .sfp-links{position:absolute;top:100%;left:0;right:0;background:var(--grey);flex-direction:column;
    align-items:stretch;gap:0;border-top:1px solid var(--line);display:none;max-height:76vh;overflow:auto}
  .sfp-links.open{display:flex}
  .sfp-links li{border-bottom:1px solid var(--line)}
  .sfp-links a{display:block;padding:15px 22px}
  .sfp-links .sfp-btn{margin:14px 22px;width:calc(100% - 44px)}
  .sfp-toggle{display:block}
}

/* ---------- sections ---------- */
.sfp-sec{padding:76px 0}
.sfp-sec-sand{background:var(--sand)}
.sfp-sec-dark{background:var(--ink)}
.sfp-sec-dark h2,.sfp-sec-dark h3,.sfp-sec-dark h4{color:#fff}
.sfp-sec-dark .sfp-eyebrow{color:#E8919B}
.sfp-head{max-width:770px;margin:0 auto 44px;text-align:center}
.sfp-head p{color:var(--slate)}
.sfp-sec-dark .sfp-head p{color:#B7C3CF}

/* ---------- HERO : image LEFT ---------- */
.sfp-hero{background:var(--grey);padding:52px 0 68px;overflow:hidden;position:relative}
.sfp-hero::before{content:'';position:absolute;top:-14%;left:-8%;width:600px;height:600px;
  background:conic-gradient(from 200deg,rgba(184,35,47,.08),rgba(27,58,92,.08),transparent 60%);
  border-radius:50%;z-index:0}
.sfp-hero-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:50px;align-items:center;
  position:relative;z-index:1}
.sfp-hero-shot{text-align:center;order:1}
.sfp-hero-copy{order:2}
.sfp-hero-shot img{max-width:min(220px,100%);margin:0 auto;filter:drop-shadow(0 26px 40px rgba(27,58,92,.2))}
.sfp-hero h1 em{font-style:normal;color:var(--crimson)}
.sfp-lede{font-size:1.05rem;color:var(--slate);max-width:37em}

.sfp-answer{background:#fff;border-left:4px solid var(--ink);border-radius:0 10px 10px 0;
  padding:23px 25px;margin:0 0 22px;box-shadow:0 8px 24px rgba(27,58,92,.07)}
.sfp-answer .tag{display:block;font-family:'Oswald',sans-serif;font-size:.68rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--crimson);margin-bottom:9px}
.sfp-answer p{margin:0;color:var(--slate)}
.sfp-answer p.first{color:var(--ink);font-weight:700;margin-bottom:.75em}

.sfp-facts{display:flex;flex-wrap:wrap;gap:9px;list-style:none;margin:0 0 22px;padding:0}
.sfp-facts li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 15px;
  font-size:.8rem;font-weight:700;color:var(--ink)}

.sfp-check{list-style:none;margin:0 0 24px;padding:0}
.sfp-check li{position:relative;padding-left:32px;margin-bottom:11px;font-size:.96rem;font-weight:500}
.sfp-check li::before{content:'';position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:3px;
  background:var(--ink);box-shadow:0 0 0 4px rgba(27,58,92,.14)}
.sfp-check li::after{content:'\2713';position:absolute;left:4px;top:6.5px;color:#fff;font-size:.62rem;font-weight:800}

.sfp-figures{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 26px}
.sfp-figures div{background:#fff;border:1px solid var(--line);border-radius:6px;padding:14px 8px;text-align:center}
.sfp-figures b{display:block;font-family:'Oswald',sans-serif;font-weight:700;font-size:1.35rem;color:var(--ink);line-height:1.1}
.sfp-figures span{font-size:.7rem;font-weight:700;color:var(--slate);text-transform:uppercase;letter-spacing:.05em}

.sfp-hero-btns{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:20px}
.sfp-hero-trust{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:.78rem;font-weight:700;color:var(--slate)}

@media(max-width:920px){
  .sfp-hero::before{display:none}
  .sfp-hero-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .sfp-hero-copy{display:contents}
  .sfp-hero-shot{order:1}
  .sfp-hero-title{order:2}
  .sfp-hero-rest{order:3}
  .sfp-hero-shot img{max-width:min(180px,100%)}
}

/* ---------- flow-gauge signature ---------- */
.sfp-gauge{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px 18px 16px;
  box-shadow:0 8px 22px rgba(27,58,92,.06);text-align:center}
.sfp-gauge h4{font-size:.74rem;letter-spacing:.13em;text-transform:uppercase;color:var(--steel);
  margin-bottom:10px;font-family:'Karla',sans-serif;font-weight:700}
.sfp-gauge svg{display:block;margin:0 auto}
.sfp-needle{transform-origin:84px 70px;transform-box:fill-box;transform:rotate(-58deg);
  transition:transform 1.3s cubic-bezier(.2,.9,.25,1.05)}
.sfp-needle.on{transform:rotate(48deg)}
.sfp-gauge-cap{font-size:.72rem;font-weight:700;color:var(--slate);margin-top:8px}

/* ---------- grids ---------- */
.sfp-grid{display:grid;gap:20px}
.sfp-g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.sfp-g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.sfp-g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:980px){.sfp-g4{grid-template-columns:repeat(2,minmax(0,1fr))}.sfp-g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.sfp-g4,.sfp-g3,.sfp-g2{grid-template-columns:minmax(0,1fr)}}

.sfp-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px 22px}
.sfp-card p{color:var(--slate);font-size:.93rem;margin:0}
.sfp-sec-dark .sfp-card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16)}
.sfp-sec-dark .sfp-card p{color:#B7C3CF}
.sfp-card-badge{text-align:center}
.sfp-card-badge img{max-width:min(135px,100%);margin:0 auto 14px;border-radius:6px}

.sfp-idx{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:5px;
  background:var(--ink);color:#fff;font-family:'Oswald',sans-serif;font-weight:700;font-size:.9rem;margin-bottom:13px}
.sfp-idx-red{background:var(--crimson)}

/* ---------- split ---------- */
.sfp-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center}
@media(max-width:920px){.sfp-split{grid-template-columns:minmax(0,1fr);gap:30px}}
.sfp-split img{max-width:min(400px,100%);margin:0 auto;border-radius:10px}
.sfp-split-copy p{color:var(--slate)}
.sfp-sec-dark .sfp-split-copy p{color:#B7C3CF}

/* ---------- list ---------- */
.sfp-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
@media(max-width:780px){.sfp-list{grid-template-columns:minmax(0,1fr)}}
.sfp-list li{background:#fff;border:1px solid var(--line);border-left:3px solid var(--ink);
  border-radius:0 6px 6px 0;padding:15px 18px;font-size:.92rem;color:var(--slate)}
.sfp-list li b{display:block;color:var(--ink);margin-bottom:3px;font-size:.97rem}

/* ---------- callouts ---------- */
.sfp-callout{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px 24px;font-size:.92rem;color:var(--slate)}
.sfp-callout b{color:var(--ink)}
.sfp-callout a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.sfp-flag{background:#FDEDEA;border:1px solid #F1B8B0;border-radius:8px;padding:21px 23px;font-size:.9rem;color:#7A2E23}
.sfp-flag b{color:var(--crimson-dk)}
.sfp-alert{background:#E9EEF3;border:1px solid #C3D0DC;border-radius:8px;padding:21px 23px;font-size:.9rem;color:#1E3A56}
.sfp-alert b{color:var(--ink)}

/* ---------- reviews ---------- */
.sfp-rev-head{display:flex;align-items:center;gap:13px;margin-bottom:11px}
.sfp-rev-head img{width:52px;height:52px;border-radius:50%;object-fit:cover;flex-shrink:0}
.sfp-rev-name{font-weight:700;font-size:.94rem;color:var(--ink)}
.sfp-rev-sub{font-size:.77rem;color:var(--slate)}
.sfp-stars{color:#B8232F;letter-spacing:2px;font-size:.9rem;margin-bottom:8px}
.sfp-board{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;text-align:center;margin-top:34px}
@media(max-width:680px){.sfp-board{grid-template-columns:minmax(0,1fr)}}
.sfp-board b{display:block;font-family:'Oswald',sans-serif;font-weight:700;font-size:1.8rem;color:var(--ink)}
.sfp-board span{font-size:.78rem;font-weight:700;color:var(--slate);text-transform:uppercase;letter-spacing:.08em}

/* ---------- pricing ---------- */
.sfp-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
@media(max-width:980px){.sfp-plans{grid-template-columns:minmax(0,1fr);max-width:430px;margin:0 auto}}
.sfp-plan{background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px 22px;text-align:center;
  display:flex;flex-direction:column;position:relative}
.sfp-plan.top{border-color:var(--crimson);box-shadow:0 24px 46px rgba(184,35,47,.16)}
@media(min-width:981px){.sfp-plan.top{transform:translateY(-10px)}}
.sfp-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--crimson);color:#fff;
  font-family:'Oswald',sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:6px 16px;border-radius:999px;white-space:nowrap}
.sfp-badge-ink{background:var(--ink);color:#fff}
.sfp-plan img.pk{max-width:min(190px,100%);max-height:170px;width:auto;height:170px;object-fit:contain;margin:8px auto 16px}
.sfp-plan-ttl{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.28rem;color:var(--ink)}
.sfp-plan-sub{font-size:.83rem;color:var(--slate);margin-bottom:14px}
.sfp-plan-price{font-family:'Oswald',sans-serif;font-weight:700;font-size:2.2rem;color:var(--ink);line-height:1}
.sfp-plan-price small{font-family:'Karla',sans-serif;font-size:.8rem;font-weight:700;color:var(--slate)}
.sfp-plan-was{text-decoration:line-through;color:var(--slate);font-size:.86rem;margin:8px 0 2px}
.sfp-plan-tot{font-weight:700;font-size:.97rem;color:var(--ink);margin-bottom:6px}
.sfp-plan-ship{font-size:.83rem;font-weight:700;color:var(--ink);margin-bottom:12px}
.sfp-plan-ship.pay{color:var(--slate)}
.sfp-plan ul{list-style:none;margin:0 0 18px;padding:0;text-align:left;font-size:.86rem;color:var(--slate)}
.sfp-plan ul li{position:relative;padding-left:21px;margin-bottom:7px}
.sfp-plan ul li::before{content:'\2713';position:absolute;left:0;color:var(--ink);font-weight:700}
.sfp-plan .sfp-btn{margin-top:auto}
.sfp-plan .cards{max-width:min(165px,100%);margin:13px auto 0;opacity:.6}

/* ---------- guarantee ---------- */
.sfp-guar{display:grid;grid-template-columns:auto minmax(0,1fr);gap:40px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:36px}
@media(max-width:820px){.sfp-guar{grid-template-columns:minmax(0,1fr);gap:24px;text-align:center;padding:28px 22px}}
.sfp-guar img{max-width:min(175px,100%);margin:0 auto}
.sfp-guar p{color:var(--slate)}

/* ---------- steps ---------- */
.sfp-steps{display:grid;gap:15px}
.sfp-step-row{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px 24px;
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:start}
.sfp-step-row .n{width:34px;height:34px;border-radius:5px;background:rgba(184,35,47,.12);color:var(--crimson-dk);
  font-family:'Oswald',sans-serif;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.92rem}
.sfp-step-row p{margin:0;color:var(--slate);font-size:.93rem}

/* ---------- FAQ ---------- */
.sfp-faq{border-top:1px solid var(--line)}
.sfp-faq-row{border-bottom:1px solid var(--line)}
.sfp-faq-btn{width:100%;background:none;border:none;text-align:left;cursor:pointer;padding:20px 4px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:'Oswald',sans-serif;font-weight:600;font-size:1.02rem;color:var(--ink)}
.sfp-faq-btn::after{content:'+';font-size:1.5rem;color:var(--crimson);flex-shrink:0;transition:transform .2s;font-family:'Karla',sans-serif}
.sfp-faq-row.on .sfp-faq-btn::after{transform:rotate(45deg)}
.sfp-faq-body{max-height:0;overflow:hidden;transition:max-height .28s ease}
.sfp-faq-body p{padding:0 4px 20px;margin:0;color:var(--slate);font-size:.94rem}

/* ---------- refs ---------- */
.sfp-refs{list-style:none;margin:0 0 18px;padding:0}
.sfp-refs li{padding:11px 0;border-bottom:1px solid var(--line);font-size:.91rem;color:var(--slate)}
.sfp-refs a{color:var(--ink);font-weight:600;text-decoration:underline;text-underline-offset:3px}

/* ---------- final CTA ---------- */
.sfp-final{background:linear-gradient(150deg,var(--ink) 0%,var(--ink-dk) 100%);border-radius:10px;
  padding:52px 30px;text-align:center}
.sfp-final h2{color:#fff}
.sfp-final p{color:#B7C3CF}
.sfp-final img{max-width:min(260px,100%);margin:22px auto}
.sfp-final .old{color:#B7C3CF;text-decoration:line-through}
.sfp-final .new{font-family:'Oswald',sans-serif;font-weight:700;font-size:1.95rem;color:var(--crimson);margin:4px 0 20px}
.sfp-final .sm{font-size:.84rem;color:#B7C3CF;margin:16px 0 0}

/* ---------- breadcrumb ---------- */
.sfp-crumb{font-size:.81rem;color:var(--slate);padding:16px 0 0}
.sfp-crumb a{color:var(--ink);font-weight:700}
.sfp-crumb i{font-style:normal;margin:0 7px;opacity:.5}

/* ---------- related ---------- */
.sfp-rel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media(max-width:780px){.sfp-rel{grid-template-columns:minmax(0,1fr)}}
.sfp-rel a{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;padding:19px 20px;transition:.15s}
.sfp-rel a:hover{border-color:var(--crimson);transform:translateY(-2px)}
.sfp-rel b{display:block;font-size:.96rem;color:var(--ink);margin-bottom:5px;font-family:'Oswald',sans-serif}
.sfp-rel span{font-size:.84rem;color:var(--slate)}

/* ---------- article ---------- */
.sfp-article h2{margin-top:1.6em}
.sfp-article h3{margin-top:1.35em}
.sfp-article p{color:var(--slate)}
.sfp-article a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.sfp-meta{font-size:.86rem;color:var(--slate);margin-bottom:26px}
.sfp-meta a{color:var(--ink);font-weight:700}

/* ---------- footer ---------- */
.sfp-foot{background:var(--ink-dk);color:#8C99A6;padding:48px 0 34px;font-size:.87rem}
.sfp-foot a{color:#CBD4DC}
.sfp-foot a:hover{color:var(--crimson)}
.sfp-foot-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 25px;list-style:none;margin:0 0 20px;padding:0;font-weight:700}
.sfp-foot-legal{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 21px;list-style:none;margin:0 0 26px;padding:0;font-size:.84rem}
.sfp-foot hr{border:none;border-top:1px solid rgba(255,255,255,.1);margin:22px 0}
.sfp-foot p{margin:0 0 14px;line-height:1.68}
.sfp-foot .cr{text-align:center;font-size:.84rem;opacity:.85;margin-top:22px}

/* ---------- sticky bar ---------- */
.sfp-sticky{position:fixed;left:0;right:0;bottom:0;z-index:950;background:var(--ink-dk);
  border-top:2px solid var(--crimson);padding:9px 15px;display:none;align-items:center;justify-content:space-between;
  gap:12px;box-shadow:0 -8px 24px rgba(0,0,0,.2)}
.sfp-sticky .t{min-width:0;line-height:1.25;color:#fff}
.sfp-sticky .t b{display:block;font-size:.92rem;color:var(--crimson);font-family:'Oswald',sans-serif}
.sfp-sticky .t small{color:#B7C3CF;font-size:.71rem}
.sfp-sticky .sfp-btn{padding:11px 18px;font-size:.86rem;flex-shrink:0}
@media(max-width:920px){.sfp-sticky{display:flex}body{padding-bottom:68px}}