/* ===================================================================
   NERVETIN — custom design system
   2nd nerve-support site, but DISTINCT from NervEase (teal-blue #134e5e /
   violet / coral, Poppins, "nerve calm settling signal").
   THIS ONE: clinical-botanical "nerve repair" aesthetic, grounded/earthy.
   Palette: pine #1d4d43 | amber #e39a3b | slate #4a6d8c
            deep-pine #123029 | cream #f6f5f0 | stone #63665e | line #e2e4dc
   Display: 'Sora' (clean modern) for headings. NervEase used Poppins;
            here use 'Sora'.
   Body:    'Inter' -> fallback system
   Signature: nerve fiber pulse (a nerve fiber with a traveling pulse dot —
              smooth signal transmission along a healthy nerve)
   NOTE: grids minmax(0,1fr); flex min-width:0; imgs min(NNNpx,100%);
         hero mobile order H1->img->rest.
   Product CAPSULE (2/day). SAME "Big Six" botanicals as NervEase.
   IMPORTANT: NEUROPATHY / NERVE-PAIN = VERY SENSITIVE:
   - Source over-claims ("target root cause","nerve regeneration","myelin
     repair","restored sensitivity","reduces neuropathic pain") NOT
     reproduced. Structure-function "nerve comfort/support" ONLY.
   - Diabetic neuropathy / MS / shingles / neurological disease treatment
     explicitly disclaimed; not a substitute for medical care.
   - Corydalis + California Poppy + Passionflower calming/GABAergic ->
     drowsiness + driving/alcohol + sedative/benzodiazepine/antidepressant
     interaction. Blood-thinner note. Blood-sugar-med (Metformin/Insulin)
     note. Pregnancy/breastfeeding AVOID.
   - Source 4.6 rating softened; testimonials -> comfort/mobility tone, NO
     pain-cure guarantee. Finished proprietary blend NOT clinically tested
     (source admits). "FDA Registered Facility". 90-day guarantee (source).
   - Meta <150. Aff link third-party tracking redirect (flagged once).
=================================================================== */

:root{
  --pine:#1d4d43;
  --pine-deep:#123029;
  --amber:#e39a3b;
  --amber-dark:#c47e22;
  --slate:#4a6d8c;
  --slate-dark:#3a5772;
  --cream:#f6f5f0;
  --tint:#ecebe2;
  --stone:#63665e;
  --line:#e2e4dc;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter','Segoe UI',sans-serif;
  color:#1d211c;
  background:var(--cream);
  margin:0;
  font-size:17px;
  line-height:1.72;
}
h1,h2,h3,h4,.nt-display{
  font-family:'Sora','Segoe UI',sans-serif;
  font-weight:700;
  line-height:1.16;
  color:#17241f;
  letter-spacing:-0.015em;
}
.nt-eyebrow{
  font-family:'Sora','Segoe UI',sans-serif;
  text-transform:uppercase;
  letter-spacing:2.5px;
  font-weight:700;
  font-size:.75rem;
  color:var(--slate-dark);
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
.container{max-width:1150px;margin:0 auto;padding:0 24px;}

/* ---------- Buttons ---------- */
.btn-nt{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--amber);color:#3a2606;
  font-family:'Sora',sans-serif;font-weight:600;font-size:1rem;
  padding:15px 34px;border:none;cursor:pointer;border-radius:10px;
  transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
  box-shadow:0 10px 24px rgba(227,154,59,.32);
}
.btn-nt:hover{background:var(--amber-dark);color:#fff;transform:translateY(-2px);}
.btn-nt-pine{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--pine);color:#fff;
  font-family:'Sora',sans-serif;font-weight:600;font-size:1rem;
  padding:15px 34px;border:none;cursor:pointer;border-radius:10px;transition:transform .15s ease,background .15s ease;
}
.btn-nt-pine:hover{background:var(--pine-deep);transform:translateY(-2px);}
.btn-nt-ghost{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;border:2px solid rgba(255,255,255,.45);color:#fff;
  font-family:'Sora',sans-serif;font-weight:600;font-size:.96rem;
  padding:13px 30px;border-radius:10px;transition:all .15s ease;
}
.btn-nt-ghost:hover{background:#fff;color:var(--pine-deep);border-color:#fff;}

/* ---------- Navbar ---------- */
.nt-nav{position:sticky;top:0;z-index:1000;background:var(--cream);padding:16px 0;border-bottom:1px solid var(--line);}
.nt-nav .container{display:flex;align-items:center;justify-content:space-between;}
.nt-logo{font-family:'Sora',sans-serif;font-weight:800;color:#17241f;font-size:1.5rem;letter-spacing:-0.02em;}
.nt-logo span{color:var(--amber-dark);}
.nt-nav-links{display:flex;gap:30px;list-style:none;margin:0;padding:0;align-items:center;}
.nt-nav-links a{color:#17241f;font-weight:600;font-size:.94rem;opacity:.82;}
.nt-nav-links a:hover{opacity:1;color:var(--slate-dark);}
.nt-nav-toggle{display:none;background:none;border:none;color:#17241f;font-size:1.8rem;cursor:pointer;}
@media(max-width:900px){
  .nt-nav-links{position:absolute;top:100%;left:0;right:0;background:var(--cream);flex-direction:column;gap:0;border-top:1px solid var(--line);display:none;}
  .nt-nav-links.open{display:flex;}
  .nt-nav-links li{width:100%;border-bottom:1px solid var(--line);}
  .nt-nav-links a{display:block;padding:16px 24px;}
  .nt-nav-cta{display:none;}
  .nt-nav-toggle{display:block;}
}

/* ---------- Hero ---------- */
.nt-hero{
  background:radial-gradient(ellipse at 78% 0%, #266256 0%, var(--pine) 55%, var(--pine-deep) 100%);
  color:#fff;padding:64px 0 0;position:relative;overflow:hidden;
}
.nt-hero-row{display:flex;align-items:center;gap:48px;flex-wrap:wrap;position:relative;z-index:2;}
.nt-hero-copy{flex:1 1 440px;min-width:0;}
.nt-hero-top,.nt-hero-bottom{width:100%;}
.nt-hero-copy h1{font-size:2.9rem;color:#fff;margin:16px 0 20px;}
.nt-hero-copy h1 em{font-style:normal;color:var(--amber);}
.nt-hero-copy p{color:#cbd8d3;font-size:1.08rem;max-width:520px;}
.nt-hero-img{flex:1 1 250px;min-width:0;text-align:center;}
.nt-hero-img img{max-width:min(300px,100%);margin:0 auto;filter:drop-shadow(0 22px 34px rgba(0,0,0,.44));}
.nt-hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px;}
.nt-rating-inline{display:flex;align-items:center;gap:12px;margin-top:28px;color:#cbd8d3;font-weight:600;}
.nt-rating-inline .stars{color:var(--amber);letter-spacing:2px;font-size:1.2rem;}
@media(max-width:900px){
  .nt-hero-copy{display:contents;}
  .nt-hero-top{order:1;}
  .nt-hero-img{order:2;margin-top:8px;}
  .nt-hero-bottom{order:3;}
  .nt-hero-copy h1{font-size:2.3rem;}
}

/* nerve fiber pulse signature */
.nt-wave-wrap{margin-top:40px;padding-bottom:36px;display:flex;justify-content:center;position:relative;z-index:2;}
.nt-wave-wrap svg{width:300px;height:56px;}
.nt-wave-label{text-align:center;color:#8fa9a2;font-size:.78rem;font-weight:700;margin-top:6px;text-transform:uppercase;letter-spacing:1px;}

/* ---------- Sections ---------- */
.nt-section{padding:78px 0;}
.nt-section-tint{background:var(--tint);}
.nt-section-dark{background:var(--pine-deep);color:#cbd8d3;}
.nt-section-dark h2,.nt-section-dark h3{color:#fff;}
.nt-head{text-align:center;max-width:720px;margin:0 auto 46px;}
.nt-head h2{font-size:2.2rem;margin-top:10px;}
.nt-head p{color:var(--stone);}
.nt-section-dark .nt-head p{color:#a7bdb6;}

/* ---------- Trust badges ---------- */
.nt-badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
@media(max-width:800px){.nt-badges{grid-template-columns:repeat(2,minmax(0,1fr));}}
.nt-badge-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 18px;text-align:center;}
.nt-badge-card img{max-width:min(150px,100%);margin:0 auto 14px;}
.nt-badge-card p{font-weight:700;color:#17241f;margin:0;font-size:1rem;}

/* ---------- Testimonials ---------- */
.nt-testi-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media(max-width:900px){.nt-testi-grid{grid-template-columns:1fr;}}
.nt-testi-card{background:#fff;border-radius:14px;padding:28px 24px;border:1px solid var(--line);border-left:4px solid var(--slate);}
.nt-testi-top{display:flex;align-items:center;gap:14px;margin-bottom:12px;}
.nt-testi-top img{width:54px;height:54px;border-radius:50%;object-fit:cover;}
.nt-testi-name{font-weight:700;color:#17241f;}
.nt-testi-loc{color:var(--stone);font-size:.85rem;}
.nt-stars{color:var(--amber-dark);letter-spacing:2px;margin-bottom:8px;}
.nt-testi-card p{color:var(--stone);font-size:.94rem;margin:0;}

.nt-rating-strip{text-align:center;}
.nt-rating-strip img{max-width:min(320px,100%);margin:0 auto;}

/* ---------- Rows ---------- */
.nt-row{display:flex;align-items:center;gap:52px;flex-wrap:wrap;}
.nt-row.reverse{flex-direction:row-reverse;}
.nt-row-img{flex:1 1 260px;min-width:0;text-align:center;}
.nt-row-img img{max-width:min(330px,100%);margin:0 auto;}
.nt-row-copy{flex:1 1 420px;min-width:0;}
.nt-row-copy h2{font-size:2rem;margin-bottom:16px;}
.nt-row-copy p{color:var(--stone);}
.nt-section-dark .nt-row-copy p{color:#a7bdb6;}

/* ---------- Mechanism cards (2x2 with numbers) ---------- */
.nt-mech-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:860px;margin:0 auto;}
@media(max-width:700px){.nt-mech-grid{grid-template-columns:1fr;}}
.nt-mech-card{background:#fff;border-radius:14px;padding:26px 24px;border:1px solid var(--line);display:flex;gap:18px;align-items:flex-start;}
.nt-mech-num{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--pine);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Sora',sans-serif;font-weight:700;font-size:1.1rem;}
.nt-mech-card h4{font-size:1.08rem;margin:0 0 8px;}
.nt-mech-card p{margin:0;color:var(--stone);font-size:.92rem;}

/* ---------- How to use ---------- */
.nt-usebox{background:#fff;border-radius:14px;padding:32px;border:1px solid var(--line);border-left:5px solid var(--amber);max-width:660px;margin:0 auto;text-align:center;}
.nt-usebox h4{font-size:1.2rem;margin:0 0 10px;}
.nt-usebox p{color:var(--stone);margin:0;}

/* ---------- Ingredient cards ---------- */
.nt-ing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
@media(max-width:900px){.nt-ing-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:620px){.nt-ing-grid{grid-template-columns:1fr;}}
.nt-ing-card{background:#fff;border-radius:14px;padding:22px 20px;border:1px solid var(--line);border-top:4px solid var(--slate);}
.nt-ing-card h4{font-size:1.02rem;margin:0 0 8px;font-family:'Sora',sans-serif;}
.nt-ing-card p{margin:0;color:var(--stone);font-size:.89rem;}

/* ---------- Benefits ---------- */
.nt-benefit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
@media(max-width:900px){.nt-benefit-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:620px){.nt-benefit-grid{grid-template-columns:1fr;}}
.nt-benefit-card{background:#fff;border-radius:14px;padding:26px 22px;border:1px solid var(--line);}
.nt-benefit-card .mark{color:var(--slate-dark);font-weight:700;font-size:1.2rem;margin-right:6px;}
.nt-benefit-card h4{font-size:1.05rem;margin:8px 0 8px;}
.nt-benefit-card p{margin:0;color:var(--stone);font-size:.94rem;}

/* ---------- Pricing ---------- */
.nt-pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:stretch;}
@media(max-width:900px){.nt-pricing-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto;}}
.nt-price-card{background:#fff;border-radius:18px;padding:30px 24px;text-align:center;position:relative;display:flex;flex-direction:column;border:2px solid var(--line);}
.nt-price-card.featured{border-color:var(--amber);box-shadow:0 22px 40px rgba(227,154,59,.2);transform:translateY(-8px);}
@media(max-width:900px){.nt-price-card.featured{transform:none;}}
.nt-ribbon{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--amber);color:#3a2606;font-weight:700;font-size:.76rem;letter-spacing:.5px;text-transform:uppercase;padding:6px 16px;border-radius:20px;white-space:nowrap;font-family:'Sora',sans-serif;}
.nt-ribbon.value{background:var(--pine);color:#fff;}
.nt-price-card img.bottle{max-width:min(170px,100%);margin:6px auto 14px;height:150px;object-fit:contain;}
.nt-pack-title{font-family:'Sora',sans-serif;font-weight:700;font-size:1.4rem;}
.nt-pack-sub{color:var(--stone);font-size:.9rem;margin-bottom:14px;}
.nt-perbottle{font-family:'Sora',sans-serif;font-weight:800;font-size:2.4rem;color:#17241f;line-height:1;}
.nt-perbottle span{font-family:'Inter',sans-serif;font-size:.9rem;font-weight:400;color:var(--stone);}
.nt-total{font-weight:700;margin:10px 0 2px;}
.nt-total .strike{text-decoration:line-through;color:var(--stone);font-weight:400;margin-right:6px;}
.nt-save{display:inline-block;background:var(--slate);color:#fff;font-weight:700;font-size:.72rem;padding:2px 10px;border-radius:12px;margin-bottom:8px;}
.nt-ship{font-size:.86rem;font-weight:700;margin-bottom:10px;color:var(--slate-dark);}
.nt-ship.paid{color:var(--stone);}
.nt-price-card .btn-nt{width:100%;justify-content:center;margin-top:auto;}
.nt-cards-img{max-width:min(190px,100%);margin:14px auto 0;opacity:.85;}

/* ---------- Stock warning ---------- */
.nt-warning{background:#eae7dc;border:2px dashed var(--amber-dark);border-radius:14px;padding:18px 24px;text-align:center;color:var(--amber-dark);font-weight:700;font-size:1rem;}

/* ---------- Guarantee ---------- */
.nt-guarantee{display:flex;align-items:center;gap:44px;flex-wrap:wrap;background:#fff;border-radius:18px;padding:40px;border:1px solid var(--line);}
.nt-guarantee img{max-width:min(180px,100%);margin:0 auto;}
.nt-guarantee-copy{flex:1 1 360px;min-width:0;}
.nt-guarantee-copy h3{font-size:1.8rem;margin-bottom:14px;}
.nt-guarantee-copy p{color:var(--stone);}

/* ---------- Final CTA ---------- */
.nt-final-cta{background:linear-gradient(135deg,var(--pine-deep) 0%,var(--pine) 100%);color:#fff;text-align:center;border-radius:22px;padding:56px 30px;}
.nt-final-cta h2{color:#fff;font-size:2.2rem;}
.nt-final-cta img{max-width:min(280px,100%);margin:24px auto;}
.nt-final-cta .old-price{text-decoration:line-through;opacity:.75;font-size:1.1rem;}
.nt-final-cta .new-price{font-family:'Sora',sans-serif;font-weight:800;color:var(--amber);font-size:2.4rem;margin:6px 0 22px;}

/* ---------- FAQ ---------- */
.nt-faq-item{border-bottom:1px solid var(--line);}
.nt-faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-family:'Sora',sans-serif;font-weight:600;font-size:1.05rem;color:#17241f;gap:16px;}
.nt-faq-q::after{content:'+';font-size:1.5rem;color:var(--amber-dark);transition:transform .2s;flex-shrink:0;}
.nt-faq-item.open .nt-faq-q::after{transform:rotate(45deg);}
.nt-faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.nt-faq-a p{padding:0 4px 20px;margin:0;color:var(--stone);}

/* ---------- Footer ---------- */
.nt-footer{background:var(--pine-deep);color:#7f948d;padding:44px 0 30px;font-size:.9rem;}
.nt-footer a{color:#cbd8d3;}
.nt-footer a:hover{color:var(--amber);}
.nt-footer hr{border-color:rgba(255,255,255,.12);margin:26px 0;}

/* ---------- Sticky mobile order bar ---------- */
.nt-sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1030;background:var(--pine-deep);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(--amber);}
.nt-sticky-bar .price{color:#fff;line-height:1.2;}
.nt-sticky-bar .price b{color:var(--amber);font-size:1.1rem;font-family:'Sora',sans-serif;}
.nt-sticky-bar .price small{display:block;color:#7f948d;font-size:.72rem;}
@media(max-width:900px){.nt-sticky-bar{display:flex;}body{padding-bottom:70px;}}

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