/* ============================================================
   ERREXAFIL — css/style.css
   Domain: errexafil.com
   Theme: Deep Navy + Electric Silver + Ice White
   Font: Lexend Deca (body/display) + Merriweather (serif headings)
   Layout: Hero product-LEFT copy-RIGHT, 3 horizontal
           mechanism cards, 3×4 ingredient grid with
           PERFORMANCE/ENERGY/CIRCULATION badges,
           horizontal benefit rows, 5-step howto,
           3-col reviews
   Naming: --exf- prefix — new in this session
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --exf-navy:     #0a1628;
  --exf-navy-mid: #0f1f3a;
  --exf-navy-lgt: #162d55;
  --exf-navy-brt: #1e3f7a;
  --exf-silver:   #7a8fa6;
  --exf-silver-md:#9aafc8;
  --exf-silver-lt:#b8cce4;
  --exf-silver-bt:#d4e4f5;
  --exf-silver-gl:#e8f1fa;
  --exf-silver-xg:#f3f7fc;
  --exf-white:    #ffffff;
  --exf-off-w:    #f8fafc;
  --exf-grey:     #eef2f8;
  --exf-text:     #0a1628;
  --exf-muted:    #2a3d56;
  --exf-faint:    #7a8fa6;
  --exf-border:   #d0dcec;
  --exf-border-dk:#162d55;

  --exf-perf:    #1e3f7a;
  --exf-energy:  #0d6e4a;
  --exf-circ:    #5a2a7a;

  --sh-1: 0 1px 6px rgba(10,22,40,.07);
  --sh-2: 0 4px 18px rgba(10,22,40,.12);
  --sh-3: 0 12px 40px rgba(10,22,40,.18);
  --sh-navy: 0 4px 22px rgba(10,22,40,.55);
  --sh-silver: 0 4px 16px rgba(180,210,240,.36);

  --r-xs:   4px;
  --r-sm:   9px;
  --r-md:   16px;
  --r-lg:   24px;
  --r-pill: 999px;
}

html{scroll-behavior:smooth}
body{font-family:'Lexend Deca',sans-serif;font-size:17px;color:var(--exf-text);background:var(--exf-white);overflow-x:hidden;line-height:1.74}
h1,h2,h3{font-family:'Merriweather',serif}
h4,h5{font-family:'Lexend Deca',sans-serif;font-weight:700}
em{font-style:italic}

/* ═══ NAV ═══ */
nav{position:sticky;top:0;z-index:1000;background:var(--exf-navy);padding:0 24px;height:66px;box-shadow:var(--sh-navy);border-bottom:2px solid var(--exf-silver-lt)}
.nav-inner{max-width:1240px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-logo{text-decoration:none;display:flex;align-items:center;flex-shrink:0}
.ln1{font-family:'Merriweather',serif;font-size:1.5rem;font-weight:700;color:var(--exf-white)}
.ln2{font-family:'Merriweather',serif;font-size:1.5rem;font-weight:700;color:var(--exf-silver-bt)}
.nav-links{display:flex;align-items:center;gap:18px;list-style:none}
.nav-links a{color:rgba(255,255,255,.58);text-decoration:none;font-size:.83rem;font-weight:400;transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:var(--exf-silver-bt)}
.nav-cta{background:var(--exf-navy-brt)!important;color:var(--exf-white)!important;font-weight:700!important;font-size:.78rem!important;padding:9px 18px!important;border-radius:var(--r-pill)!important;transition:filter .2s!important;text-transform:uppercase;border:1px solid var(--exf-silver-lt)!important}
.nav-cta:hover{filter:brightness(1.2)!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;background:none;border:none}
.hamburger span{width:24px;height:2px;background:var(--exf-silver-bt);display:block;border-radius:2px}
.mobile-menu{display:none;flex-direction:column;background:var(--exf-navy-mid);position:absolute;top:66px;left:0;right:0;padding:20px 28px;gap:14px;z-index:999;border-bottom:2px solid var(--exf-silver-lt)}
.mobile-menu.open{display:flex}
.mobile-menu a{color:rgba(255,255,255,.72);text-decoration:none;font-size:1rem;font-weight:400;padding:4px 0;border-bottom:.5px solid rgba(255,255,255,.08)}
.mob-cta{background:var(--exf-navy-brt)!important;color:var(--exf-white)!important;text-align:center;padding:12px!important;border-radius:var(--r-pill)!important;font-weight:700!important;margin-top:8px;text-transform:uppercase;border:1px solid var(--exf-silver-lt)!important}

/* ═══ BUTTONS ═══ */
.cta-navy{display:inline-block;background:linear-gradient(135deg,var(--exf-navy) 0%,var(--exf-navy-lgt) 100%);color:var(--exf-white);font-family:'Lexend Deca',sans-serif;font-weight:700;font-size:.96rem;letter-spacing:.3px;text-transform:uppercase;padding:14px 38px;border-radius:var(--r-pill);text-decoration:none;transition:filter .25s,transform .2s,box-shadow .2s;box-shadow:var(--sh-navy);border:1px solid var(--exf-silver-lt)}
.cta-navy:hover{filter:brightness(1.22);transform:translateY(-3px);box-shadow:0 8px 28px rgba(10,22,40,.50)}
.cta-lg{font-size:1.02rem;padding:15px 44px}
.cta-ghost-w{display:inline-block;background:transparent;color:rgba(255,255,255,.58);font-family:'Lexend Deca',sans-serif;font-weight:600;font-size:.84rem;text-transform:uppercase;letter-spacing:.3px;padding:13px 28px;border-radius:var(--r-pill);text-decoration:none;border:1.5px solid rgba(255,255,255,.22);transition:all .2s}
.cta-ghost-w:hover{border-color:var(--exf-silver-bt);color:var(--exf-silver-bt)}

/* ═══ TAGS ═══ */
.etag{display:inline-block;font-size:.63rem;font-weight:700;letter-spacing:2.8px;text-transform:uppercase;color:var(--exf-silver-bt);border-bottom:2px solid var(--exf-silver-bt);padding-bottom:3px;margin-bottom:14px}
.etag.etag-dk{color:var(--exf-navy-brt);border-bottom-color:var(--exf-navy-brt)}

/* ═══ BAND HEADERS ═══ */
.band-hdr{padding:52px 24px 40px;text-align:center}
.navy-band{background:var(--exf-navy-mid);border-top:3px solid var(--exf-silver-lt);border-bottom:1px solid var(--exf-border-dk)}
.silver-band{background:var(--exf-silver-gl);border-top:3px solid var(--exf-navy-lgt);border-bottom:1px solid var(--exf-border)}
.bh-inner{max-width:760px;margin:0 auto}
.bh-inner h2{font-family:'Merriweather',serif;font-size:2rem;font-weight:700;line-height:1.26;margin-bottom:10px}
.navy-band .bh-inner h2{color:var(--exf-white)}
.silver-band .bh-inner h2{color:var(--exf-navy)}
.navy-band .bh-inner p{font-size:.94rem;color:rgba(255,255,255,.50)}
.silver-band .bh-inner p{font-size:.94rem;color:var(--exf-muted)}

/* ═══ HERO — Product LEFT, Copy RIGHT ═══ */
.hero-section{background:linear-gradient(150deg,var(--exf-navy) 0%,var(--exf-navy-mid) 55%,#030a15 100%);position:relative;overflow:hidden;padding:0 24px;border-bottom:3px solid var(--exf-silver-lt)}
.hs-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 15% 50%,rgba(30,63,122,.22) 0%,transparent 50%),radial-gradient(ellipse at 85% 20%,rgba(180,210,240,.08) 0%,transparent 40%);pointer-events:none}
.hs-grid{position:relative;z-index:1;max-width:1240px;margin:0 auto;display:grid;grid-template-columns:1fr 1.15fr;min-height:640px;align-items:center;gap:52px;padding:64px 0}
.hs-left{position:relative;display:flex;flex-direction:column;align-items:center}
.hl-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:300px;height:300px;border-radius:50%;background:radial-gradient(ellipse,rgba(30,63,122,.22) 0%,rgba(22,45,85,.10) 60%,transparent 75%);pointer-events:none}
.hl-rating{color:var(--exf-silver-bt);font-size:.78rem;font-weight:500;margin-bottom:10px;text-align:center;position:relative;z-index:1;letter-spacing:.2px}
.hl-img-link{position:relative;z-index:1;display:block}
.hl-img-link img{width:auto;max-width:320px;max-height:380px;object-fit:contain;filter:drop-shadow(0 14px 44px rgba(0,0,0,.60)) drop-shadow(0 0 60px rgba(30,63,122,.22));transition:transform .5s;display:block;margin:0 auto}
.hl-img-link:hover img{transform:scale(1.04) translateY(-8px)}
.hl-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;margin-top:14px;position:relative;z-index:1}
.hl-badges span{background:rgba(255,255,255,.07);border:1px solid rgba(180,210,240,.22);color:rgba(255,255,255,.78);font-size:.65rem;font-weight:500;padding:4px 12px;border-radius:var(--r-pill)}
.hs-right{display:flex;flex-direction:column}
.hsr-tag{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}
.hsr-tag span{background:rgba(30,63,122,.22);border:1px solid rgba(180,210,240,.24);color:var(--exf-silver-bt);font-size:.63rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:5px 12px;border-radius:var(--r-pill)}
.hero-h1{font-family:'Merriweather',serif;font-size:2.5rem;font-weight:700;line-height:1.22;color:var(--exf-white);margin-bottom:18px}
.h1-silver{color:var(--exf-silver-bt);font-style:italic}
.hero-sub{font-size:1rem;line-height:1.80;color:rgba(255,255,255,.60);margin-bottom:22px;max-width:540px}
.hero-sub strong{color:var(--exf-silver-bt)}
.hero-ul{display:flex;flex-direction:column;gap:9px;margin-bottom:26px}
.hero-ul span{font-size:.88rem;color:rgba(255,255,255,.80);font-weight:400;display:flex;align-items:center;gap:8px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.hero-trust{display:flex;align-items:center;background:rgba(255,255,255,.05);border:1px solid rgba(180,210,240,.18);border-radius:var(--r-md);padding:12px 16px;flex-wrap:wrap;margin-bottom:12px}
.ht-cell{display:flex;flex-direction:column;align-items:center;padding:0 14px}
.ht-cell strong{font-family:'Merriweather',serif;font-size:1.1rem;color:var(--exf-silver-bt);line-height:1}
.ht-cell span{font-size:.60rem;font-weight:600;color:rgba(255,255,255,.42);text-transform:uppercase;letter-spacing:.5px;margin-top:3px}
.ht-line{width:1px;height:34px;background:rgba(255,255,255,.12);flex-shrink:0}
.hero-fine{font-size:.74rem;color:rgba(255,255,255,.30)}
.hero-disc{font-size:.70rem;color:rgba(255,255,255,.22);margin-top:6px;line-height:1.55}

/* ═══ VITALITY STRIP ═══ */
.vitality-strip{background:linear-gradient(90deg,var(--exf-navy-brt) 0%,var(--exf-navy-lgt) 100%);padding:11px 24px;border-bottom:1px solid var(--exf-border-dk)}
.vs-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px 0}
.vs-item{display:flex;align-items:center;gap:7px;padding:0 18px}
.vs-item span{font-size:1.1rem}
.vs-item strong{font-size:.80rem;font-weight:500;color:rgba(255,255,255,.84);text-transform:uppercase;letter-spacing:.3px}
.vs-div{width:1px;height:36px;background:rgba(255,255,255,.18);flex-shrink:0}

/* ═══ SCIENCE — 3 horizontal mechanism cards ═══ */
.science-section{background:var(--exf-white);padding:64px 40px}
.sci-mechs{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:36px}
.sm-card{background:var(--exf-silver-xg);border:1px solid var(--exf-border);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:box-shadow .25s;border-top:4px solid var(--exf-navy-lgt)}
.sm-card:hover{box-shadow:var(--sh-3)}
.smc-icon{font-size:2rem;display:block;margin-bottom:10px}
.sm-card h3{font-family:'Merriweather',serif;font-size:1.1rem;font-weight:700;color:var(--exf-navy);margin-bottom:6px;line-height:1.3}
.smc-ingredients{font-size:.70rem;font-weight:700;color:var(--exf-navy-brt);text-transform:uppercase;letter-spacing:.4px;display:block;margin-bottom:12px;border-bottom:1px solid var(--exf-border);padding-bottom:8px}
.sm-card p{font-size:.84rem;line-height:1.72;color:var(--exf-muted)}
.facts-bar{max-width:1160px;margin:0 auto;background:var(--exf-silver-gl);border:1px solid var(--exf-border);border-radius:var(--r-md);display:flex;flex-wrap:wrap;overflow:hidden}
.fb-item{display:flex;flex-direction:column;padding:13px 20px;flex:1;min-width:130px}
.fb-sep{width:1px;background:var(--exf-border);flex-shrink:0}
.fbk{font-size:.67rem;font-weight:700;color:var(--exf-navy);text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.fbv{font-size:.83rem;color:var(--exf-muted);font-weight:400}
.fbg{color:var(--exf-navy-lgt);font-weight:700}
.sci-disc{max-width:860px;margin:12px auto 0;font-size:.74rem;color:var(--exf-faint);text-align:center;line-height:1.6}

/* ═══ PRICE BAND ═══ */
.price-band{background:var(--exf-navy);padding:38px 24px 14px;text-align:center;border-top:3px solid var(--exf-silver-lt)}
.pb-inner h2{font-family:'Merriweather',serif;font-size:1.85rem;font-weight:700;color:var(--exf-silver-bt);margin-bottom:8px}
.pb-inner p{font-size:.93rem;color:rgba(255,255,255,.46)}
.price-sec{background:var(--exf-navy-mid);padding:42px;text-align:center}
.price-link img{max-width:900px;width:100%;height:auto;object-fit:contain;border-radius:var(--r-sm);box-shadow:var(--sh-2);display:block;margin:0 auto;transition:transform .3s}
.price-link:hover img{transform:scale(1.01)}

/* ═══ INGREDIENTS — 3×4 grid with badges ═══ */
.ing-section{background:var(--exf-grey);padding:64px 40px}
.ing-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}
.ing-card{background:var(--exf-white);border:1px solid var(--exf-border);border-radius:var(--r-lg);padding:20px 18px;box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s;border-top:3px solid var(--exf-silver-md)}
.ing-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.ic-mech{display:inline-block;font-size:.59rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;padding:3px 8px;border-radius:var(--r-pill);margin-bottom:6px}
.ic-perf{background:#dbeafe;color:var(--exf-perf);border:1px solid #93c5fd}
.ic-energy{background:#d1fae5;color:var(--exf-energy);border:1px solid #6ee7b7}
.ic-circ{background:#ede9fe;color:var(--exf-circ);border:1px solid #c4b5fd}
.ic-num{font-size:.60rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--exf-faint);display:block;margin-bottom:4px}
.ing-card h4{font-size:.96rem;font-weight:700;color:var(--exf-navy);margin-bottom:4px;line-height:1.3}
.ic-role{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px;color:var(--exf-silver);display:block;margin-bottom:10px}
.ing-card p{font-size:.80rem;line-height:1.64;color:var(--exf-muted)}
.ing-disc{max-width:860px;margin:0 auto;background:var(--exf-silver-gl);border:1px solid var(--exf-border);border-radius:var(--r-xs);padding:12px 18px;font-size:.78rem;color:var(--exf-muted);line-height:1.6}

/* ═══ BENEFITS — horizontal rows ═══ */
.benefits-section{background:var(--exf-white);padding:64px 40px}
.ben-rows{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.ben-row{background:var(--exf-silver-xg);border:1px solid var(--exf-border);border-radius:var(--r-lg);padding:20px 24px;display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:center;transition:box-shadow .25s,border-color .25s;border-left:5px solid var(--exf-navy-lgt);box-shadow:var(--sh-1)}
.ben-row:hover{box-shadow:var(--sh-3);border-color:var(--exf-navy-brt)}
.br-ico{font-size:1.7rem;text-align:center}
.br-body h4{font-size:.96rem;font-weight:700;color:var(--exf-navy);margin-bottom:6px;line-height:1.3}
.br-body p{font-size:.86rem;line-height:1.70;color:var(--exf-muted)}
.ben-disc{max-width:860px;margin:0 auto;font-size:.74rem;color:var(--exf-faint);text-align:center;line-height:1.6}

/* ═══ HOWTO ═══ */
.howto-section{background:var(--exf-navy-mid);padding:64px 40px}
.howto-steps{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:0}
.hs-step{display:grid;grid-template-columns:54px 1fr;gap:0;align-items:start;position:relative}
.hs-step:not(:last-child)::after{content:'';position:absolute;left:26px;top:54px;bottom:0;width:2px;background:linear-gradient(to bottom,var(--exf-silver-lt),rgba(180,210,240,.10));z-index:0}
.hs-num{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--exf-navy-lgt) 0%,var(--exf-navy-brt) 100%);color:var(--exf-silver-bt);font-family:'Merriweather',serif;font-size:1.3rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;z-index:1;box-shadow:var(--sh-silver);border:1px solid var(--exf-silver-lt)}
.hs-body{padding:6px 0 34px 22px}
.hs-body h4{font-size:1rem;font-weight:700;color:var(--exf-white);margin-bottom:6px}
.hs-tldr{font-size:.84rem;background:rgba(30,63,122,.22);border-left:3px solid var(--exf-silver-lt);padding:8px 12px;border-radius:0 var(--r-xs) var(--r-xs) 0;margin-bottom:9px;line-height:1.55;color:var(--exf-silver-bt);font-weight:600}
.hs-body p:last-child{font-size:.93rem;line-height:1.78;color:rgba(255,255,255,.50)}

/* ═══ REVIEWS ═══ */
.reviews-section{background:var(--exf-off-w);padding:64px 40px}
.rev-grid{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev-card{background:var(--exf-white);border:1px solid var(--exf-border);border-radius:var(--r-lg);padding:24px 20px;box-shadow:var(--sh-1);transition:box-shadow .3s,transform .3s;border-top:4px solid var(--exf-navy-lgt)}
.rev-card:hover{box-shadow:var(--sh-3);transform:translateY(-4px)}
.rc-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.rc-av{width:64px;height:64px;border-radius:50%;object-fit:cover;border:2px solid var(--exf-silver-lt);flex-shrink:0}
.rc-stars{color:#4a6fa0;font-size:1rem;letter-spacing:2px;margin-bottom:3px}
.rc-name{font-family:'Merriweather',serif;font-size:.90rem;font-weight:700;color:var(--exf-navy);margin-bottom:1px}
.rc-name span{font-family:'Lexend Deca',sans-serif;font-weight:400;font-size:.79rem;color:var(--exf-muted)}
.rc-badge{font-size:.70rem;font-weight:700;color:#15803d}
.rc-quote{font-size:.90rem;line-height:1.72;color:var(--exf-muted);font-style:italic;border-left:3px solid var(--exf-silver-md);padding-left:12px}

/* ═══ GUARANTEE ═══ */
.guar-section{background:linear-gradient(135deg,var(--exf-silver-gl) 0%,var(--exf-grey) 100%);padding:64px 40px;border-top:3px solid var(--exf-silver-lt);border-bottom:3px solid var(--exf-silver-lt)}
.guar-inner{max-width:1060px;margin:0 auto;display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:center}
.guar-img img{width:100%;max-width:240px;height:auto;object-fit:contain;display:block;margin:0 auto;filter:drop-shadow(0 6px 20px rgba(10,22,40,.14))}
.guar-text h2{font-family:'Merriweather',serif;font-size:1.85rem;font-weight:700;color:var(--exf-navy);line-height:1.3;margin-bottom:14px}
.guar-text p{font-size:1rem;line-height:1.82;color:var(--exf-muted);margin-bottom:12px}

/* ═══ FAQs ═══ */
.faq-section{background:var(--exf-white);padding:60px 40px}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--exf-silver-xg);border:1px solid var(--exf-border);border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--sh-1)}
.faq-q{width:100%;background:none;border:none;text-align:left;padding:17px 22px;font-family:'Lexend Deca',sans-serif;font-size:.90rem;font-weight:600;color:var(--exf-text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:13px;transition:background .2s;line-height:1.45}
.faq-q:hover{background:var(--exf-silver-gl)}
.faq-arr{font-size:1.4rem;font-weight:300;transition:transform .3s;color:var(--exf-navy-lgt);flex-shrink:0;line-height:1}
.faq-ans{display:none;padding:0 22px 18px;font-size:.95rem;line-height:1.78;color:var(--exf-muted);border-top:1px solid var(--exf-border)}
.faq-ans p{padding-top:13px}
.faq-tldr{font-size:.84rem;background:var(--exf-silver-gl);border-left:3px solid var(--exf-navy-lgt);padding:8px 13px;border-radius:0 var(--r-xs) var(--r-xs) 0;line-height:1.55;color:var(--exf-navy);font-weight:700}
.faq-item.open .faq-ans{display:block}
.faq-item.open .faq-arr{transform:rotate(45deg);color:var(--exf-navy)}
.faq-item.open .faq-q{background:var(--exf-silver-gl)}

/* ═══ FINAL CTA ═══ */
.cta-final{background:linear-gradient(155deg,var(--exf-navy) 0%,var(--exf-navy-mid) 55%,#020810 100%);padding:84px 24px;text-align:center;border-top:3px solid var(--exf-silver-lt);position:relative;overflow:hidden}
.cta-final::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(30,63,122,.22) 0%,transparent 55%);pointer-events:none}
.ctaf-inner{position:relative;z-index:1;max-width:800px;margin:0 auto}
.ctaf-inner h2{font-family:'Merriweather',serif;font-size:2.3rem;font-weight:700;color:var(--exf-white);margin-bottom:12px;line-height:1.22}
.ctaf-inner h2 span{color:var(--exf-silver-bt)}
.ctaf-sub{font-size:.84rem;color:rgba(255,255,255,.34);margin-bottom:34px;line-height:1.7}
.ctaf-product{max-width:220px;margin:0 auto 28px}
.ctaf-product img{width:100%;height:auto;object-fit:contain;filter:drop-shadow(0 0 40px rgba(30,63,122,.30)) drop-shadow(0 16px 40px rgba(0,0,0,.65));transition:transform .4s}
.ctaf-product:hover img{transform:scale(1.05) translateY(-8px)}
.ctaf-trust{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 24px;margin-top:18px}
.ctaf-trust span{font-size:.76rem;font-weight:500;color:rgba(255,255,255,.34);white-space:nowrap}
.ctaf-disc{font-size:.70rem;color:rgba(255,255,255,.20);margin-top:14px;line-height:1.6}

/* ═══ FOOTER ═══ */
footer{background:var(--exf-navy);border-top:3px solid var(--exf-silver-lt)}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;padding:44px 40px;gap:0;border-bottom:1px solid rgba(180,210,240,.14)}
.fg-brand{padding-right:44px;border-right:1px solid rgba(180,210,240,.14)}
.footer-logo{text-decoration:none;display:flex;align-items:center;margin-bottom:12px}
.fg-desc{font-size:.80rem;line-height:1.70;color:rgba(255,255,255,.28);margin-bottom:16px}
.fg-chips{display:flex;flex-wrap:wrap;gap:6px}
.fg-chips span{background:rgba(30,63,122,.22);border:1px solid rgba(180,210,240,.22);color:var(--exf-silver-bt);font-size:.62rem;font-weight:600;padding:3px 10px;border-radius:var(--r-pill)}
.fg-nav{padding:0 24px}
.fg-nav h5{font-family:'Lexend Deca',sans-serif;font-size:.80rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--exf-silver-bt);margin-bottom:12px;padding-bottom:6px;border-bottom:1px solid rgba(180,210,240,.14)}
.fg-nav ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:9px}
.fg-nav ul li a{color:rgba(255,255,255,.30);text-decoration:none;font-size:.83rem;font-weight:400;transition:color .2s;display:flex;align-items:center;gap:5px}
.fg-nav ul li a::before{content:'›';color:var(--exf-silver-bt);font-size:.9rem}
.fg-nav ul li a:hover{color:var(--exf-white)}
.footer-legal{max-width:1200px;margin:0 auto;padding:14px 40px 20px;text-align:center}
.footer-legal p{font-size:.72rem;color:rgba(255,255,255,.22);line-height:1.65;margin-bottom:7px}
.footer-copy{font-size:.72rem;color:rgba(255,255,255,.22);margin-top:8px;padding-top:8px;border-top:1px solid rgba(180,210,240,.10)}

/* ═══ FADE-UP ═══ */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .60s ease,transform .60s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.hero-section .fade-up{opacity:1;transform:translateY(0);animation:heroFd .65s ease both}
@keyframes heroFd{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.hero-section .hs-left{animation-delay:.10s}
.hero-section .hs-right{animation-delay:.22s}
.hero-section .hero-ctas{animation-delay:.32s}
.hero-section .hero-trust{animation-delay:.42s}

/* ═══ RESPONSIVE ═══ */
@media(max-width:1100px){
  .ing-grid{grid-template-columns:1fr 1fr}
  .facts-bar{flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr}
  .fg-brand{grid-column:1/-1;border-right:none;border-bottom:1px solid rgba(180,210,240,.14);padding-right:0;padding-bottom:24px;margin-bottom:8px}
  .vs-div{display:none}
}
@media(max-width:900px){
  .hs-grid{grid-template-columns:1fr;padding:44px 0}
  .hs-left{order:-1}
  .hl-img-link img{max-width:220px}
  .sci-mechs{grid-template-columns:1fr}
  .rev-grid{grid-template-columns:1fr 1fr}
  .guar-inner{grid-template-columns:1fr;text-align:center}
  .guar-img{order:-1}
  .ht-line{display:none}
  .hero-trust{flex-wrap:wrap;gap:12px;justify-content:center}
}
@media(max-width:640px){
  nav{padding:0 16px}
  .nav-links{display:none}
  .hamburger{display:flex}
  .hero-section{padding:0 16px}
  .hero-h1{font-size:2.0rem}
  .science-section,.ing-section,.benefits-section,.howto-section,.reviews-section,.guar-section,.faq-section,.price-sec,.cta-final{padding:44px 20px}
  .rev-grid,.ing-grid{grid-template-columns:1fr}
  .footer-grid,.footer-legal{padding:28px 20px}
  .fg-nav{padding:0}
  .footer-grid{grid-template-columns:1fr}
  .ctaf-inner h2{font-size:1.9rem}
  .band-hdr{padding:36px 20px 28px}
  .bh-inner h2{font-size:1.7rem}
  .hs-step{grid-template-columns:44px 1fr}
  .hs-num{width:44px;height:44px;font-size:1.05rem}
  .price-sec{padding:32px 16px}
  .ben-row{grid-template-columns:44px 1fr}
}