/* ===================================================================
   MAX FORCE — custom design system (v2)
   Palette: indigo #12172b | steel navy #1c2340 | teal #17c3b2
            coral #ff6b4a | mist #f4f7f8 | slate #5c6478
   Display: 'Space Grotesk' (geometric, technical)
   Body:    'Inter' (clean, modern sans)
   Signature: pulse/flow line — literal nod to "nitric oxide pathway"
=================================================================== */

:root{
  --indigo:#12172b;
  --indigo-2:#1c2340;
  --teal:#17c3b2;
  --teal-dark:#0fa494;
  --coral:#ff6b4a;
  --coral-dark:#e8532f;
  --mist:#f4f7f8;
  --ink:#12172b;
  --slate:#5c6478;
  --line:#e3e7ea;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',sans-serif;
  color:var(--ink);
  background:var(--mist);
  margin:0;
  font-size:17px;
  line-height:1.65;
}
h1,h2,h3,h4,.mx-display{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  line-height:1.12;
  color:var(--indigo);
  letter-spacing:-.3px;
}
.mx-eyebrow{
  font-family:'Inter',sans-serif;
  text-transform:uppercase;
  letter-spacing:2.5px;
  font-weight:700;
  font-size:.8rem;
  color:var(--teal-dark);
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
.container{max-width:1160px;margin:0 auto;padding:0 24px;}

/* ---------- Buttons ---------- */
.btn-mx{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--coral);
  color:#fff;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  font-size:1rem;
  padding:15px 30px;
  border-radius:8px;
  border:none;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
  box-shadow:0 10px 24px rgba(255,107,74,.32);
}
.btn-mx:hover{background:var(--coral-dark);transform:translateY(-2px);color:#fff;}
.btn-mx-outline{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;
  border:2px solid rgba(255,255,255,.4);
  color:#fff;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:.98rem;
  padding:13px 26px;border-radius:8px;transition:all .15s ease;
}
.btn-mx-outline:hover{background:#fff;color:var(--indigo);border-color:#fff;}
.btn-mx-teal{background:var(--teal);box-shadow:0 10px 24px rgba(23,195,178,.3);}
.btn-mx-teal:hover{background:var(--teal-dark);}

/* ---------- Navbar ---------- */
.mx-nav{
  position:sticky;top:0;z-index:1000;
  background:var(--indigo);
  padding:16px 0;
}
.mx-nav .container{display:flex;align-items:center;justify-content:space-between;}
.mx-logo{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  color:#fff;
  font-size:1.4rem;
}
.mx-logo span{color:var(--teal);}
.mx-nav-links{display:flex;gap:32px;list-style:none;margin:0;padding:0;align-items:center;}
.mx-nav-links a{
  color:#cfd3e0;
  font-weight:600;font-size:.95rem;
}
.mx-nav-links a:hover{color:var(--teal);}
.mx-nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.8rem;cursor:pointer;}

@media(max-width:900px){
  .mx-nav-links{
    position:absolute;top:100%;left:0;right:0;background:var(--indigo);
    flex-direction:column;gap:0;border-top:1px solid rgba(255,255,255,.08);
    display:none;
  }
  .mx-nav-links.open{display:flex;}
  .mx-nav-links li{width:100%;border-bottom:1px solid rgba(255,255,255,.06);}
  .mx-nav-links a{display:block;padding:16px 24px;}
  .mx-nav-cta{display:none;}
  .mx-nav-toggle{display:block;}
}

/* ---------- Hero (pulse-line signature) ---------- */
.mx-hero{
  background:radial-gradient(ellipse at top right, #1c2340 0%, var(--indigo) 60%);
  color:#fff;
  padding:70px 0 0;
  position:relative;
  overflow:hidden;
}
.mx-hero-row{display:flex;align-items:center;gap:48px;flex-wrap:wrap;position:relative;z-index:2;}
.mx-hero-copy{flex:1 1 440px;min-width:0;}
.mx-hero-copy h1{font-size:2.9rem;color:#fff;margin:16px 0 20px;}
.mx-hero-copy h1 em{font-style:normal;color:var(--teal);}
.mx-hero-copy p{color:#c3c8d6;font-size:1.08rem;max-width:520px;}
.mx-hero-img{flex:1 1 340px;min-width:0;text-align:center;}
.mx-hero-img img{max-width:min(340px,100%);margin:0 auto;filter:drop-shadow(0 26px 40px rgba(0,0,0,.5));}
.mx-hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px;}
.mx-rating-inline{display:flex;align-items:center;gap:12px;margin-top:30px;color:#c3c8d6;font-weight:600;}
.mx-rating-inline .stars{color:var(--teal);letter-spacing:2px;font-size:1.2rem;}

.mx-pulse-wrap{position:relative;z-index:1;margin-top:50px;opacity:.9;}
.mx-pulse-wrap svg{display:block;width:100%;height:60px;}
.mx-pulse-line{fill:none;stroke:var(--teal);stroke-width:2.5;opacity:.55;}

/* ---------- Section shells ---------- */
.mx-section{padding:80px 0;}
.mx-section-dark{background:var(--indigo);color:#e7e9f0;}
.mx-section-dark h2,.mx-section-dark h3{color:#fff;}
.mx-head{text-align:center;max-width:680px;margin:0 auto 48px;}
.mx-head h2{font-size:2.1rem;margin-top:10px;}

.mx-hr-line{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);border:none;margin:0;}
.mx-hr-line.dark{background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);}

/* ---------- Trust badges ---------- */
.mx-badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
@media(max-width:800px){.mx-badges{grid-template-columns:repeat(2,minmax(0,1fr));}}
.mx-badge-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:26px 18px;text-align:center;
}
.mx-badge-card img{max-width:min(150px,100%);margin:0 auto 14px;}
.mx-badge-card p{font-weight:700;color:var(--indigo);margin:0;font-size:1rem;}

/* ---------- Testimonials ---------- */
.mx-testi-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media(max-width:900px){.mx-testi-grid{grid-template-columns:1fr;}}
.mx-testi-card{
  background:var(--indigo-2);border-radius:14px;padding:30px 26px;
}
.mx-testi-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.mx-testi-top img{width:56px;height:56px;border-radius:50%;object-fit:cover;}
.mx-testi-name{font-weight:700;color:#fff;}
.mx-testi-loc{color:#9298ab;font-size:.85rem;}
.mx-stars{color:var(--teal);letter-spacing:2px;margin-bottom:8px;}
.mx-testi-card p{color:#c3c8d6;font-size:.98rem;}

.mx-rating-strip{text-align:center;}
.mx-rating-strip img{max-width:min(340px,100%);margin:0 auto;filter:brightness(0) invert(1);opacity:.92;}

/* ---------- About / How it works ---------- */
.mx-row{display:flex;align-items:center;gap:56px;flex-wrap:wrap;}
.mx-row.reverse{flex-direction:row-reverse;}
.mx-row-img{flex:1 1 300px;min-width:0;text-align:center;}
.mx-row-img img{max-width:min(300px,100%);margin:0 auto;}
.mx-row-copy{flex:1 1 440px;min-width:0;}
.mx-row-copy h2{font-size:2rem;margin-bottom:16px;}
.mx-row-copy p{color:var(--slate);}
.mx-section-dark .mx-row-copy p{color:#c3c8d6;}

/* ---------- Mechanism grouping (signature content structure) ---------- */
.mx-mech-block{margin-bottom:46px;}
.mx-mech-label{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--teal);color:#fff;font-weight:700;
  padding:8px 18px;border-radius:30px;font-size:.85rem;
  margin-bottom:22px;
}
.mx-mech-label.mech2{background:var(--coral);}
.mx-ing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
@media(max-width:700px){.mx-ing-grid{grid-template-columns:1fr;}}
.mx-ing-card{
  background:#fff;border-radius:12px;padding:24px 22px;border:1px solid var(--line);
}
.mx-ing-card h4{font-size:1.1rem;margin:0 0 4px;font-family:'Space Grotesk',sans-serif;}
.mx-ing-tag{display:block;font-size:.75rem;font-weight:700;color:var(--teal-dark);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;}
.mx-ing-card p{margin:0;color:var(--slate);font-size:.95rem;}

/* ---------- Benefits ---------- */
.mx-benefit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
@media(max-width:900px){.mx-benefit-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:620px){.mx-benefit-grid{grid-template-columns:1fr;}}
.mx-benefit-card{background:#fff;border-radius:12px;padding:26px 22px;border:1px solid var(--line);}
.mx-benefit-card .num{font-family:'Space Grotesk',sans-serif;color:var(--teal-dark);font-weight:700;font-size:1.4rem;display:block;margin-bottom:8px;}
.mx-benefit-card h4{font-size:1.05rem;font-family:'Space Grotesk',sans-serif;margin:0 0 8px;}
.mx-benefit-card p{margin:0;color:var(--slate);font-size:.95rem;}

/* ---------- Pricing ---------- */
.mx-pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:stretch;}
@media(max-width:900px){.mx-pricing-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto;}}
.mx-price-card{
  background:#fff;border-radius:16px;
  padding:32px 24px;text-align:center;position:relative;display:flex;flex-direction:column;
  border:2px solid var(--line);
}
.mx-price-card.featured{
  border-color:var(--teal);
  box-shadow:0 24px 44px rgba(23,195,178,.18);
  transform:translateY(-8px);
}
@media(max-width:900px){.mx-price-card.featured{transform:none;}}
.mx-ribbon{
  position:absolute;top:-15px;left:50%;transform:translateX(-50%);
  background:var(--teal);color:#fff;font-weight:700;
  font-size:.78rem;letter-spacing:.5px;text-transform:uppercase;
  padding:6px 18px;border-radius:20px;white-space:nowrap;
}
.mx-ribbon.value{background:var(--coral);}
.mx-price-card img.bottle{max-width:min(150px,100%);margin:6px auto 14px;}
.mx-pack-title{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.4rem;}
.mx-pack-sub{color:var(--slate);font-size:.92rem;margin-bottom:14px;}
.mx-perbottle{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:2.4rem;color:var(--indigo);line-height:1;}
.mx-perbottle span{font-family:'Inter',sans-serif;font-size:.92rem;font-weight:400;color:var(--slate);}
.mx-total{font-weight:700;margin:10px 0 2px;}
.mx-ship{font-size:.88rem;font-weight:700;margin-bottom:18px;color:var(--teal-dark);}
.mx-ship.paid{color:var(--slate);}
.mx-price-card .btn-mx{width:100%;justify-content:center;margin-top:auto;}
.mx-cards-img{max-width:min(200px,100%);margin:14px auto 0;opacity:.85;}

/* ---------- Stock warning ---------- */
.mx-warning{
  background:#fff5f0;border:2px dashed var(--coral);border-radius:12px;
  padding:20px 26px;text-align:center;color:var(--coral-dark);font-weight:700;
  font-size:1.02rem;
}

/* ---------- Guarantee ---------- */
.mx-guarantee{display:flex;align-items:center;gap:44px;flex-wrap:wrap;background:#fff;border-radius:16px;padding:44px;border:1px solid var(--line);}
.mx-guarantee img{max-width:min(190px,100%);margin:0 auto;}
.mx-guarantee-copy{flex:1 1 360px;}
.mx-guarantee-copy h3{font-size:1.7rem;margin-bottom:14px;}
.mx-guarantee-copy p{color:var(--slate);}

/* ---------- Final CTA ---------- */
.mx-final-cta{
  background:linear-gradient(135deg,var(--indigo) 0%,var(--indigo-2) 100%);
  color:#fff;text-align:center;border-radius:20px;padding:60px 30px;
  border:1px solid rgba(23,195,178,.25);
}
.mx-final-cta h2{color:#fff;font-size:2.2rem;}
.mx-final-cta img{max-width:min(240px,100%);margin:26px auto;border-radius:12px;}
.mx-final-cta .old-price{text-decoration:line-through;opacity:.7;font-size:1.15rem;}
.mx-final-cta .new-price{font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--teal);font-size:2.3rem;margin:6px 0 24px;}

/* ---------- FAQ ---------- */
.mx-faq-item{border-bottom:1px solid var(--line);}
.mx-faq-q{
  width:100%;text-align:left;background:none;border:none;padding:22px 4px;
  display:flex;justify-content:space-between;align-items:center;cursor:pointer;
  font-weight:700;font-size:1.1rem;color:var(--indigo);font-family:'Space Grotesk',sans-serif;
}
.mx-faq-q::after{content:'+';font-family:'Space Grotesk',sans-serif;font-size:1.5rem;color:var(--teal-dark);transition:transform .2s;}
.mx-faq-item.open .mx-faq-q::after{transform:rotate(45deg);}
.mx-faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.mx-faq-a p{padding:0 4px 22px;margin:0;color:var(--slate);}

/* ---------- Footer ---------- */
.mx-footer{background:var(--indigo);color:#9298ab;padding:44px 0 30px;font-size:.92rem;}
.mx-footer a{color:#cfd3e0;}
.mx-footer a:hover{color:var(--teal);}
.mx-footer hr{border-color:rgba(255,255,255,.1);margin:26px 0;}

/* ---------- Sticky mobile order bar ---------- */
.mx-sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1030;
  background:var(--indigo);padding:10px 16px;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  box-shadow:0 -6px 20px rgba(0,0,0,.3);border-top:2px solid var(--teal);
}
.mx-sticky-bar .price{color:#fff;line-height:1.2;}
.mx-sticky-bar .price b{color:var(--teal);font-size:1.1rem;font-family:'Space Grotesk',sans-serif;}
.mx-sticky-bar .price small{display:block;color:#9298ab;font-size:.72rem;}
@media(max-width:900px){.mx-sticky-bar{display:flex;}body{padding-bottom:70px;}}

.align-center{text-align:center;}