/* ============================================================
   VITRAFOXINUSA — css/style.css
   Domain: vitrafoxinusa.com
   Theme: Deep Midnight Purple + Electric Coral + Clean White
   Font: Raleway (elegant geometric display) +
         Libre Baskerville (warm authoritative serif body)
   Layout: Split Copy-LEFT Visual-RIGHT + neural synapse
           CSS bg. 3 brain problem panels. 4 horizontal
           ingredient showcase. Benefit vertical timeline.
           2 bonus pair cards. 3-col reviews purple.
           3-step howto coral.
   Naming: --vfu- prefix
   ============================================================ */

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

:root{
  --vfu-purple:  #2a1a4a;
  --vfu-pur-md:  #321e5c;
  --vfu-pur-lt:  #3a2268;
  --vfu-pur-brt: #4a2e80;
  --vfu-pur-pal: #f3f0ff;
  --vfu-pur-xpl: #f9f8ff;
  --vfu-coral:   #d43a2a;
  --vfu-cor-md:  #e44030;
  --vfu-cor-lt:  #f04838;
  --vfu-cor-brt: #f85c4a;
  --vfu-cor-pal: #fff0ee;
  --vfu-cor-xpl: #fff8f7;
  --vfu-white:   #ffffff;
  --vfu-off-w:   #fdfcfc;
  --vfu-warm-w:  #f8f7f7;
  --vfu-text:    #1a0a28;
  --vfu-muted:   #281440;
  --vfu-faint:   #6a5888;
  --vfu-border:  #d8c8f0;
  --vfu-bdr-lt:  #e8dcf8;
  --vfu-dark:    #0e0420;

  --sh-1: 0 1px 6px rgba(42,26,74,.08);
  --sh-2: 0 4px 18px rgba(42,26,74,.14);
  --sh-3: 0 12px 40px rgba(42,26,74,.22);
  --sh-coral: 0 4px 22px rgba(212,58,42,.36);
  --sh-purple: 0 4px 22px rgba(42,26,74,.55);

  --r-xs:  4px;
  --r-sm:  10px;
  --r-md:  16px;
  --r-lg:  24px;
  --r-xl:  32px;
  --r-pill:999px;
}

html{scroll-behavior:smooth}
body{font-family:'Libre Baskerville',serif;font-size:17px;color:var(--vfu-text);background:var(--vfu-off-w);overflow-x:hidden;line-height:1.80}
h1,h2,h3,h4,h5{font-family:'Raleway',sans-serif}
h4{font-weight:600}
em{font-style:italic}

/* NAV */
nav{position:sticky;top:0;z-index:1000;background:var(--vfu-purple);padding:0 24px;height:66px;border-bottom:3px solid var(--vfu-coral);box-shadow:0 4px 20px rgba(14,4,32,.70)}
.nav-inner{max-width:1260px;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:'Raleway',sans-serif;font-size:1.5rem;font-weight:800;color:var(--vfu-white);letter-spacing:.5px}
.ln2{font-family:'Raleway',sans-serif;font-size:1.5rem;font-weight:300;color:var(--vfu-cor-brt);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:16px;list-style:none}
.nav-links a{color:rgba(255,255,255,.46);text-decoration:none;font-family:'Raleway',sans-serif;font-size:.78rem;font-weight:500;transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:var(--vfu-cor-brt)}
.nav-cta{background:var(--vfu-coral)!important;color:var(--vfu-white)!important;font-family:'Raleway',sans-serif!important;font-weight:700!important;font-size:.76rem!important;letter-spacing:.5px!important;padding:9px 18px!important;border-radius:var(--r-xs)!important;transition:filter .2s!important}
.nav-cta:hover{filter:brightness(1.12)!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(--vfu-cor-brt);display:block;border-radius:2px}
.mobile-menu{display:none;flex-direction:column;background:var(--vfu-pur-md);position:absolute;top:69px;left:0;right:0;padding:20px 28px;gap:14px;z-index:999;border-bottom:3px solid var(--vfu-coral)}
.mobile-menu.open{display:flex}
.mobile-menu a{color:rgba(255,255,255,.60);text-decoration:none;font-family:'Raleway',sans-serif;font-size:.96rem;font-weight:500;padding:4px 0;border-bottom:.5px solid rgba(248,92,74,.14)}
.mob-cta{background:var(--vfu-coral)!important;color:var(--vfu-white)!important;text-align:center;padding:12px!important;border-radius:var(--r-xs)!important;font-weight:700!important;margin-top:8px;border:none!important}

/* BUTTONS */
.cta-coral{display:inline-block;background:linear-gradient(135deg,var(--vfu-coral) 0%,var(--vfu-cor-md) 55%,var(--vfu-cor-lt) 100%);color:var(--vfu-white);font-family:'Raleway',sans-serif;font-weight:700;font-size:.86rem;letter-spacing:.5px;text-transform:uppercase;padding:14px 38px;border-radius:var(--r-xs);text-decoration:none;transition:filter .25s,transform .2s,box-shadow .2s;box-shadow:var(--sh-coral)}
.cta-coral:hover{filter:brightness(1.10);transform:translateY(-3px);box-shadow:0 8px 28px rgba(212,58,42,.50)}
.cta-xl{font-size:.92rem;padding:16px 48px}
.cta-lg{font-size:.86rem;padding:14px 40px}
.cta-ghost-vfu{display:inline-block;background:transparent;color:rgba(255,255,255,.42);font-family:'Raleway',sans-serif;font-weight:500;font-size:.80rem;padding:13px 28px;border-radius:var(--r-xs);text-decoration:none;border:1.5px solid rgba(248,92,74,.28);transition:all .2s}
.cta-ghost-vfu:hover{border-color:var(--vfu-cor-brt);color:var(--vfu-cor-brt)}

/* TAGS */
.etag{display:inline-block;font-family:'Raleway',sans-serif;font-size:.60rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;border-bottom:2px solid currentColor;padding-bottom:3px;margin-bottom:14px}
.etag.etag-lt{color:rgba(255,255,255,.80)}

/* BAND HEADERS */
.band-hdr{padding:52px 24px 40px;text-align:center}
.purple-band{background:linear-gradient(145deg,var(--vfu-purple) 0%,var(--vfu-pur-lt) 100%);border-top:3px solid var(--vfu-coral)}
.coral-band{background:linear-gradient(145deg,var(--vfu-coral) 0%,var(--vfu-cor-md) 100%);border-top:3px solid var(--vfu-pur-brt)}
.bh-inner{max-width:800px;margin:0 auto}
.bh-inner h2{font-family:'Raleway',sans-serif;font-size:1.9rem;font-weight:800;line-height:1.22;margin-bottom:10px;color:var(--vfu-white)}
.bh-inner p{font-family:'Libre Baskerville',serif;font-size:.88rem;color:rgba(255,255,255,.50)}

/* HERO: Split Copy-LEFT Visual-RIGHT + neural synapse bg */
.hero{background:linear-gradient(155deg,var(--vfu-dark) 0%,#080218 48%,#180830 100%);position:relative;overflow:hidden;border-bottom:3px solid var(--vfu-coral)}
/* Neural synapse CSS bg */
.hero-synapse-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-synapse-bg::before{content:'';position:absolute;inset:0;
  background:
    radial-gradient(circle 2.5px at 15% 20%, rgba(248,92,74,.50) 0%, transparent 3px),
    radial-gradient(circle 1.5px at 85% 15%, rgba(138,80,200,.44) 0%, transparent 2px),
    radial-gradient(circle 2px at 70% 75%, rgba(248,92,74,.36) 0%, transparent 2px),
    radial-gradient(circle 1.5px at 30% 70%, rgba(138,80,200,.30) 0%, transparent 2px),
    radial-gradient(circle 1px at 90% 48%, rgba(248,92,74,.28) 0%, transparent 1px),
    radial-gradient(circle 1px at 50% 30%, rgba(138,80,200,.22) 0%, transparent 1px),
    radial-gradient(circle 1px at 25% 50%, rgba(248,92,74,.18) 0%, transparent 1px);
  animation:synapseFloat 16s ease-in-out infinite alternate}
.hero-synapse-bg::after{content:'';position:absolute;inset:0;
  background:
    repeating-linear-gradient(65deg,
      transparent 0px, transparent 80px,
      rgba(138,80,200,.03) 80px, rgba(138,80,200,.03) 82px,
      transparent 82px, transparent 160px,
      rgba(248,92,74,.02) 160px, rgba(248,92,74,.02) 162px
    );
  animation:synapseLine 24s linear infinite}
@keyframes synapseFloat{0%{transform:translateY(0)}100%{transform:translateY(-14px)}}
@keyframes synapseLine{from{transform:translateX(-40px)}to{transform:translateX(40px)}}

.hero-inner{position:relative;z-index:1;max-width:1260px;margin:0 auto;display:grid;grid-template-columns:1.15fr 1fr;min-height:720px;align-items:center;gap:44px;padding:64px 40px}

/* LEFT: Copy */
.hero-copy{display:flex;flex-direction:column;gap:0}
.hc-label{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:rgba(255,255,255,.38);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.hcl-dot{width:6px;height:6px;border-radius:50%;background:var(--vfu-coral);animation:dotPulse 2s ease-in-out infinite;flex-shrink:0}
@keyframes dotPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.hero-h1{font-family:'Raleway',sans-serif;font-size:2.7rem;font-weight:800;line-height:1.14;color:var(--vfu-white);margin-bottom:16px;letter-spacing:.2px}
.h1-coral{color:var(--vfu-cor-brt)}
.h1-wht{font-family:'Libre Baskerville',serif;font-weight:400;color:rgba(255,255,255,.60);font-style:italic}
.hero-sub{font-family:'Libre Baskerville',serif;font-size:.96rem;line-height:1.84;color:rgba(255,255,255,.44);margin-bottom:20px}
.hero-sub strong{color:var(--vfu-cor-brt)}
/* NGF box */
.hc-ngf-box{background:rgba(255,255,255,.06);border:1px solid rgba(248,92,74,.20);border-radius:var(--r-md);padding:16px 18px;margin-bottom:18px}
.hcn-label{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--vfu-cor-brt);margin-bottom:12px;display:block}
.hcn-items{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.hcni{display:flex;align-items:center;gap:8px}
.hcni-icon{font-size:1rem;flex-shrink:0}
.hcni span{font-family:'Raleway',sans-serif;font-size:.76rem;font-weight:600;color:var(--vfu-white)}
.hcni em{display:block;font-family:'Raleway',sans-serif;font-size:.62rem;font-weight:300;color:rgba(255,255,255,.36);font-style:normal}
/* Proof */
.hc-proof{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.hcp-star{color:var(--vfu-cor-brt);font-size:.90rem;letter-spacing:2px}
.hcp-ct{font-family:'Raleway',sans-serif;font-size:.74rem;font-weight:600;color:rgba(255,255,255,.60)}
.hcp-sep{color:rgba(255,255,255,.26)}
.hcp-guar{font-family:'Raleway',sans-serif;font-size:.74rem;font-weight:600;color:var(--vfu-cor-brt)}
.hc-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.hc-fine{font-family:'Raleway',sans-serif;font-size:.68rem;font-weight:300;color:rgba(255,255,255,.26)}

/* RIGHT: Visual */
.hero-visual{display:flex;flex-direction:column;align-items:center;position:relative}
.hv-aura{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:380px;height:380px;border-radius:50%;background:radial-gradient(ellipse,rgba(212,58,42,.14) 0%,rgba(138,80,200,.08) 45%,transparent 65%);pointer-events:none;animation:auraBreath 6s ease-in-out infinite}
@keyframes auraBreath{0%,100%{opacity:.6;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.05)}}
.hero-visual a{display:block;position:relative;z-index:1}
.hero-product-img{width:100%;max-width:460px;height:auto;object-fit:contain;filter:drop-shadow(0 24px 72px rgba(0,0,0,.82)) drop-shadow(0 0 80px rgba(212,58,42,.18));transition:transform .5s;display:block;margin:0 auto}
.hero-visual a:hover .hero-product-img{transform:scale(1.04) translateY(-10px)}
/* Price card */
.hv-price-card{background:rgba(255,255,255,.08);border:1px solid rgba(248,92,74,.24);border-radius:var(--r-md);padding:16px 18px;margin-top:16px;width:100%;max-width:360px;position:relative;z-index:1}
.hvpc-best{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--vfu-cor-brt);background:rgba(212,58,42,.18);padding:4px 10px;border-radius:var(--r-pill);display:inline-block;margin-bottom:10px}
.hvpc-row{display:flex;justify-content:space-between;align-items:center;padding:5px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.hvpc-row strong{font-family:'Raleway',sans-serif;font-size:.84rem;font-weight:700;color:var(--vfu-white)}
.hvpc-row span{font-family:'Raleway',sans-serif;font-size:.80rem;font-weight:500;color:var(--vfu-cor-brt)}
.hvpc-row.hvpc-sm{opacity:.60}
.hvpc-row.hvpc-sm span,.hvpc-row.hvpc-sm strong{font-size:.74rem}
.hvpc-btn{display:block;text-align:center;background:var(--vfu-coral);color:var(--vfu-white);font-family:'Raleway',sans-serif;font-weight:700;font-size:.78rem;letter-spacing:.5px;text-transform:uppercase;padding:10px;border-radius:var(--r-xs);text-decoration:none;margin-top:12px;transition:filter .2s}
.hvpc-btn:hover{filter:brightness(1.10)}

/* SCIENCE PANELS: 3 brain problem panels */
.science-section{background:var(--vfu-warm-w);padding:64px 40px}
.sci-panels{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:28px}
.sci-panel{background:var(--vfu-white);border:1px solid var(--vfu-border);border-radius:var(--r-xl);padding:26px 20px;box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s;position:relative;overflow:hidden}
.sci-panel::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--vfu-purple),var(--vfu-coral))}
.sci-panel:hover{box-shadow:var(--sh-3);transform:translateY(-4px)}
.sp-icon{font-size:2.4rem;display:block;margin-bottom:10px}
.sp-num{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--vfu-coral);display:block;margin-bottom:6px}
.sci-panel h3{font-family:'Raleway',sans-serif;font-size:.90rem;font-weight:700;color:var(--vfu-text);margin-bottom:10px;line-height:1.28}
.sci-panel p{font-family:'Libre Baskerville',serif;font-size:.86rem;line-height:1.72;color:var(--vfu-muted);margin-bottom:14px}
.sp-solution{font-family:'Raleway',sans-serif;font-size:.72rem;font-weight:600;color:var(--vfu-white);background:var(--vfu-purple);border-radius:var(--r-xs);padding:7px 12px}
.sp-solution strong{color:var(--vfu-cor-brt)}

/* PRICE BAND */
.price-band{background:var(--vfu-purple);padding:38px 24px 14px;text-align:center;border-top:3px solid var(--vfu-coral)}
.pb-inner h2{font-family:'Raleway',sans-serif;font-size:1.85rem;font-weight:800;color:var(--vfu-cor-brt);margin-bottom:8px}
.pb-inner p{font-family:'Libre Baskerville',serif;font-size:.88rem;color:rgba(255,255,255,.38)}
.price-sec{background:var(--vfu-pur-md);padding:42px;text-align:center}
.price-link{display:block}
.price-img-lg{width:100%;max-width:1000px;height:auto;object-fit:contain;border-radius:var(--r-sm);display:block;margin:0 auto;transition:transform .3s}
.price-link:hover .price-img-lg{transform:scale(1.01)}

/* INGREDIENT HORIZONTAL SHOWCASE */
.ing-section{background:var(--vfu-pur-xpl);padding:64px 40px}
.ing-horizontal{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:36px}
.ih-card{background:var(--vfu-white);border:1px solid var(--vfu-border);border-radius:var(--r-xl);padding:22px 18px;box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s;position:relative}
.ih-card:hover{box-shadow:var(--sh-3);transform:translateY(-4px)}
.ihc-highlight{background:linear-gradient(145deg,var(--vfu-pur-pal),var(--vfu-white));border:2px solid var(--vfu-coral)}
.ihc-icon{font-size:2.2rem;display:block;margin-bottom:8px}
.ihc-num{font-family:'Raleway',sans-serif;font-size:.56rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--vfu-coral);display:block;margin-bottom:5px}
.ihc-star-badge{position:absolute;top:14px;right:14px;background:var(--vfu-coral);color:var(--vfu-white);font-family:'Raleway',sans-serif;font-size:.50rem;font-weight:800;padding:3px 8px;border-radius:var(--r-pill);letter-spacing:.5px}
.ih-card h3{font-family:'Raleway',sans-serif;font-size:.84rem;font-weight:700;color:var(--vfu-text);margin-bottom:4px;line-height:1.26}
.ihc-tag{display:block;font-family:'Raleway',sans-serif;font-size:.60rem;font-weight:600;color:var(--vfu-coral);text-transform:uppercase;letter-spacing:.5px;margin-bottom:9px}
.ih-card p{font-family:'Libre Baskerville',serif;font-size:.82rem;line-height:1.68;color:var(--vfu-muted);margin-bottom:12px}
.ihc-chips{display:flex;flex-wrap:wrap;gap:5px}
.ihc-chips span{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:600;color:var(--vfu-purple);background:var(--vfu-pur-pal);border:1px solid var(--vfu-border);padding:3px 8px;border-radius:var(--r-pill)}
/* Ingredients visual */
.ing-vis-wrap{max-width:1000px;margin:0 auto 28px;text-align:center}
.ing-vis-wrap a{display:block}
.ing-vis-img{width:100%;height:auto;object-fit:contain;border-radius:var(--r-lg);box-shadow:var(--sh-2);display:block;margin:0 auto;transition:transform .3s}
.ing-vis-wrap a:hover .ing-vis-img{transform:scale(1.01)}
/* Facts bar */
.facts-bar{max-width:1200px;margin:0 auto;background:var(--vfu-pur-pal);border:1px solid var(--vfu-border);border-radius:var(--r-sm);display:flex;flex-wrap:wrap;overflow:hidden}
.fb-item{display:flex;flex-direction:column;padding:13px 18px;flex:1;min-width:100px}
.fb-sep{width:1px;background:var(--vfu-border);flex-shrink:0}
.fbk{font-family:'Raleway',sans-serif;font-size:.60rem;font-weight:700;color:var(--vfu-purple);text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.fbv{font-family:'Libre Baskerville',serif;font-size:.86rem;color:var(--vfu-muted)}
.fbg{color:var(--vfu-coral);font-weight:700;font-family:'Raleway',sans-serif}

/* BENEFIT TIMELINE: vertical */
.timeline-section{background:var(--vfu-cor-xpl);padding:64px 40px}
.benefit-timeline{max-width:900px;margin:0 auto;display:flex;flex-direction:column}
.bt-item{display:grid;grid-template-columns:80px 1fr;gap:0;align-items:start}
.bt-marker{display:flex;flex-direction:column;align-items:center;flex-shrink:0}
.bt-dot{background:linear-gradient(135deg,var(--vfu-purple),var(--vfu-pur-brt));color:var(--vfu-white);font-family:'Raleway',sans-serif;font-size:.70rem;font-weight:800;padding:10px 6px;border-radius:var(--r-pill);text-align:center;box-shadow:var(--sh-purple);width:64px;flex-shrink:0;line-height:1.3}
.bt-coral{background:linear-gradient(135deg,var(--vfu-coral),var(--vfu-cor-lt));box-shadow:var(--sh-coral)}
.bt-line{width:2px;flex:1;min-height:32px;background:linear-gradient(to bottom,var(--vfu-coral),rgba(212,58,42,.06));margin:8px auto 0}
.bt-last{background:rgba(212,58,42,.06)}
.bt-item:last-child .bt-line{display:none}
.bt-body{padding:4px 0 40px 22px}
.bt-body h3{font-family:'Raleway',sans-serif;font-size:.94rem;font-weight:700;color:var(--vfu-text);margin-bottom:8px;line-height:1.26}
.bt-body p{font-family:'Libre Baskerville',serif;font-size:.88rem;line-height:1.72;color:var(--vfu-muted);margin-bottom:12px}
.bt-tags{display:flex;flex-wrap:wrap;gap:6px}
.bt-tags span{font-family:'Raleway',sans-serif;font-size:.60rem;font-weight:600;color:var(--vfu-purple);background:var(--vfu-pur-pal);border:1px solid var(--vfu-border);padding:3px 10px;border-radius:var(--r-pill)}

/* BONUS PAIR */
.bonus-section{background:var(--vfu-warm-w);padding:64px 40px}
.bonus-pair{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:20px}
.bp-card{background:var(--vfu-white);border:1px solid var(--vfu-border);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s;display:grid;grid-template-columns:180px 1fr;align-items:stretch}
.bp-card:hover{box-shadow:var(--sh-3);transform:translateY(-4px)}
.bpc-img{overflow:hidden}
.bpc-cover{width:180px;height:100%;object-fit:cover;display:block;transition:transform .3s}
.bp-card:hover .bpc-cover{transform:scale(1.04)}
.bpc-content{padding:20px 18px;display:flex;flex-direction:column}
.bpc-tag{font-family:'Raleway',sans-serif;font-size:.58rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--vfu-coral);display:block;margin-bottom:7px}
.bpc-content h4{font-family:'Raleway',sans-serif;font-size:.90rem;font-weight:700;color:var(--vfu-text);margin-bottom:9px;line-height:1.28}
.bpc-content p{font-family:'Libre Baskerville',serif;font-size:.84rem;line-height:1.68;color:var(--vfu-muted);flex:1;margin-bottom:12px}
.bpc-val{font-family:'Raleway',sans-serif;font-size:.78rem;font-weight:600;color:var(--vfu-faint)}
.bpc-val s{opacity:.5}
.bpc-val span{color:var(--vfu-coral)}

/* REVIEWS */
.reviews-section{background:linear-gradient(145deg,var(--vfu-purple) 0%,var(--vfu-pur-lt) 100%);padding:64px 40px}
.rev-grid{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev-card{background:rgba(255,255,255,.97);border:1px solid var(--vfu-border);border-radius:var(--r-xl);padding:24px 20px;box-shadow:var(--sh-purple);transition:box-shadow .3s,transform .3s;border-left:4px solid var(--vfu-coral)}
.rev-card:hover{box-shadow:0 16px 48px rgba(42,26,74,.30);transform:translateY(-5px)}
.rc-stars{color:var(--vfu-coral);font-size:.96rem;letter-spacing:2px;display:block;margin-bottom:11px}
.rc-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.rc-av{width:72px;height:72px;border-radius:50%;object-fit:cover;border:3px solid var(--vfu-coral);flex-shrink:0}
.rc-name{font-family:'Raleway',sans-serif;font-size:.90rem;font-weight:700;color:var(--vfu-text);margin-bottom:2px}
.rc-role{font-family:'Raleway',sans-serif;font-size:.66rem;font-weight:500;color:var(--vfu-purple);margin-bottom:2px}
.rc-ver{font-family:'Raleway',sans-serif;font-size:.62rem;font-weight:600;color:var(--vfu-coral)}
.rc-q{font-family:'Libre Baskerville',serif;font-size:.88rem;line-height:1.72;color:var(--vfu-muted);font-style:italic;border-left:3px solid var(--vfu-pur-pal);padding-left:12px}

/* GUARANTEE */
.guar-section{background:linear-gradient(135deg,var(--vfu-cor-pal) 0%,var(--vfu-off-w) 100%);padding:64px 40px;border-top:3px solid var(--vfu-purple);border-bottom:3px solid var(--vfu-coral)}
.guar-inner{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:center}
.guar-img-lg{width:100%;max-width:280px;height:auto;object-fit:contain;display:block;margin:0 auto;filter:drop-shadow(0 8px 24px rgba(212,58,42,.16))}
.guar-text h2{font-family:'Raleway',sans-serif;font-size:1.9rem;font-weight:800;color:var(--vfu-purple);line-height:1.22;margin-bottom:14px}
.guar-text p{font-family:'Libre Baskerville',serif;font-size:.96rem;line-height:1.80;color:var(--vfu-muted);margin-bottom:12px}

/* HOWTO */
.howto-section{background:linear-gradient(145deg,var(--vfu-coral) 0%,var(--vfu-cor-md) 100%);padding:64px 40px}
.howto-steps{max-width:860px;margin:0 auto;display:flex;flex-direction:column}
.hs-step{display:grid;grid-template-columns:62px 1fr;gap:0;align-items:start;position:relative}
.hs-step:not(:last-child)::after{content:'';position:absolute;left:30px;top:62px;bottom:0;width:2px;background:linear-gradient(to bottom,rgba(255,255,255,.45),rgba(255,255,255,.04));z-index:0}
.hs-num{width:60px;height:60px;border-radius:50%;background:var(--vfu-purple);color:var(--vfu-white);font-family:'Raleway',sans-serif;font-size:1.3rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;z-index:1;box-shadow:var(--sh-purple)}
.hs-body{padding:6px 0 34px 22px}
.hs-body h4{font-family:'Raleway',sans-serif;font-size:.90rem;font-weight:700;color:var(--vfu-white);margin-bottom:6px;line-height:1.28}
.hs-tldr{font-family:'Raleway',sans-serif;font-size:.76rem;font-weight:600;background:rgba(255,255,255,.18);border-left:3px solid rgba(255,255,255,.65);padding:8px 12px;border-radius:0 var(--r-xs) var(--r-xs) 0;margin-bottom:9px;line-height:1.58;color:var(--vfu-white)}
.hs-body p:last-child{font-family:'Libre Baskerville',serif;font-size:.90rem;line-height:1.76;color:rgba(255,255,255,.48)}

/* FAQs */
.faq-section{background:var(--vfu-warm-w);padding:60px 40px}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--vfu-white);border:1px solid var(--vfu-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:'Raleway',sans-serif;font-size:.86rem;font-weight:600;color:var(--vfu-text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:13px;transition:background .2s;line-height:1.38}
.faq-q:hover{background:var(--vfu-pur-pal)}
.faq-arr{font-size:1.4rem;font-weight:300;transition:transform .3s;color:var(--vfu-coral);flex-shrink:0;line-height:1}
.faq-ans{display:none;padding:0 22px 18px;font-family:'Libre Baskerville',serif;font-size:.92rem;line-height:1.80;color:var(--vfu-muted);border-top:1px solid var(--vfu-bdr-lt)}
.faq-ans p{padding-top:13px}
.faq-tldr{font-family:'Raleway',sans-serif;font-size:.76rem;font-weight:600;background:var(--vfu-pur-pal);border-left:3px solid var(--vfu-purple);padding:8px 13px;border-radius:0 var(--r-xs) var(--r-xs) 0;line-height:1.58;color:var(--vfu-text)}
.faq-item.open .faq-ans{display:block}
.faq-item.open .faq-arr{transform:rotate(45deg);color:var(--vfu-purple)}
.faq-item.open .faq-q{background:var(--vfu-pur-pal)}

/* FINAL CTA */
.cta-final{background:linear-gradient(155deg,var(--vfu-dark) 0%,#060012 55%,#180830 100%);padding:84px 24px;text-align:center;border-top:4px solid var(--vfu-coral);position:relative;overflow:hidden}
.cta-final::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(212,58,42,.12) 0%,transparent 55%);pointer-events:none}
.cta-final-inner{position:relative;z-index:1;max-width:800px;margin:0 auto}
.ctaf-synapse{width:60px;height:60px;border-radius:50%;border:2px solid rgba(248,92,74,.36);margin:0 auto 16px;animation:ctaSynapse 2.6s ease-in-out infinite}
@keyframes ctaSynapse{0%,100%{transform:scale(1);opacity:.5}50%{transform:scale(1.12);opacity:1}}
.cta-final-inner h2{font-family:'Raleway',sans-serif;font-size:2.5rem;font-weight:800;color:var(--vfu-white);margin-bottom:12px;line-height:1.14;letter-spacing:.2px}
.cta-final-inner h2 span{color:var(--vfu-cor-brt)}
.cta-final-inner h2 em{font-family:'Libre Baskerville',serif;font-style:italic;color:rgba(255,255,255,.60)}
.ctaf-sub{font-family:'Raleway',sans-serif;font-size:.84rem;font-weight:400;color:rgba(255,255,255,.26);margin-bottom:34px;line-height:1.72}
.ctaf-img{max-width:280px;margin:0 auto 28px}
.ctaf-product-img{width:100%;height:auto;object-fit:contain;filter:drop-shadow(0 0 28px rgba(212,58,42,.18)) drop-shadow(0 12px 36px rgba(0,0,0,.75));transition:transform .4s;display:block}
.ctaf-img:hover .ctaf-product-img{transform:scale(1.05) translateY(-8px)}
.ctaf-trust{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;margin-top:18px}
.ctaf-trust span{font-family:'Raleway',sans-serif;font-size:.68rem;font-weight:400;color:rgba(255,255,255,.26);white-space:nowrap}

/* FOOTER */
footer{background:var(--vfu-dark);border-top:4px solid var(--vfu-coral)}
.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(248,92,74,.10)}
.fg-brand{padding-right:44px;border-right:1px solid rgba(248,92,74,.10)}
.footer-logo{text-decoration:none;display:flex;align-items:center;margin-bottom:12px}
.fg-desc{font-family:'Libre Baskerville',serif;font-size:.78rem;line-height:1.70;color:rgba(255,255,255,.22);margin-bottom:16px}
.fg-chips{display:flex;flex-wrap:wrap;gap:6px}
.fg-chips span{background:rgba(212,58,42,.12);border:1px solid rgba(212,58,42,.22);color:var(--vfu-cor-brt);font-family:'Raleway',sans-serif;font-size:.60rem;font-weight:600;padding:3px 10px;border-radius:var(--r-xs)}
.fg-nav{padding:0 24px}
.fg-nav h5{font-family:'Raleway',sans-serif;font-size:.70rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:var(--vfu-cor-brt);margin-bottom:12px;padding-bottom:6px;border-bottom:1px solid rgba(248,92,74,.12)}
.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,.24);text-decoration:none;font-family:'Libre Baskerville',serif;font-size:.86rem;transition:color .2s;display:flex;align-items:center;gap:5px}
.fg-nav ul li a::before{content:'›';color:var(--vfu-cor-brt);font-size:.9rem;font-family:'Raleway',sans-serif}
.fg-nav ul li a:hover{color:var(--vfu-white)}
.footer-legal{max-width:1200px;margin:0 auto;padding:14px 40px 20px;text-align:center}
.footer-legal p{font-family:'Libre Baskerville',serif;font-size:.73rem;color:rgba(255,255,255,.18);line-height:1.65;margin-bottom:7px}
.footer-copy{font-size:.72rem;color:rgba(255,255,255,.16);margin-top:8px;padding-top:8px;border-top:1px solid rgba(248,92,74,.08)}
.footer-copy a{color:rgba(255,255,255,.32);text-decoration:none}
.footer-copy a:hover{color:var(--vfu-cor-brt);text-decoration:underline}

/* 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 .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 .hero-copy{animation-delay:.10s}
.hero .hero-visual{animation-delay:.24s}

/* RESPONSIVE */
@media(max-width:1100px){
  .hero-inner{grid-template-columns:1fr;padding:44px 28px;gap:36px;text-align:center}
  .hero-visual{order:-1}
  .hcn-items{grid-template-columns:1fr 1fr}
  .hc-proof{justify-content:center}
  .hc-ctas{justify-content:center}
  .hero-product-img{max-width:340px}
  .ing-horizontal{grid-template-columns:1fr 1fr}
  .sci-panels{grid-template-columns:1fr}
  .bonus-pair{grid-template-columns:1fr}
  .bp-card{grid-template-columns:160px 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .fg-brand{grid-column:1/-1;border-right:none;border-bottom:1px solid rgba(248,92,74,.10);padding-right:0;padding-bottom:24px;margin-bottom:8px}
  .facts-bar{flex-wrap:wrap}
  .hv-price-card{max-width:100%}
}
@media(max-width:900px){
  .hero-h1{font-size:2.2rem}
  .ing-horizontal{grid-template-columns:1fr 1fr}
  .rev-grid{grid-template-columns:1fr 1fr}
  .guar-inner{grid-template-columns:1fr;text-align:center}
  .guar-img-lg{max-width:220px}
  .bt-item{grid-template-columns:64px 1fr}
  .bt-dot{width:54px;font-size:.64rem}
}
@media(max-width:640px){
  nav{padding:0 16px}
  .nav-links{display:none}
  .hamburger{display:flex}
  .hero-inner{padding:36px 16px}
  .hero-h1{font-size:1.9rem}
  .hero-product-img{max-width:260px}
  .hcn-items{grid-template-columns:1fr 1fr}
  .ing-horizontal{grid-template-columns:1fr}
  .sci-panels,.science-section,.ing-section,.timeline-section,.bonus-section,.reviews-section,.guar-section,.howto-section,.faq-section,.price-sec,.cta-final{padding:44px 20px}
  .rev-grid{grid-template-columns:1fr}
  .bp-card{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  .bpc-cover{width:100%;height:160px}
  .footer-grid,.footer-legal{padding:28px 20px}
  .fg-nav{padding:0}
  .footer-grid{grid-template-columns:1fr}
  .cta-final-inner h2{font-size:2rem}
  .band-hdr{padding:36px 20px 28px}
  .bh-inner h2{font-size:1.65rem}
  .hs-step{grid-template-columns:50px 1fr}
  .hs-num{width:50px;height:50px;font-size:1.1rem}
}