/* ==========================================================================
   Neuro Memory — Clinical Journal Design System
   Palette:  --ink #141748 (bottle/primary) · --slate #6f7f9c (secondary)
             --gold #F4B93D (action) · --paper #FFFFFF (strip) · --bg #F6F5F1
   Type:     Display  — "Fraunces" (journal-serif authority)
             Body     — "Source Sans 3" (clinical readability)
             Mono     — "IBM Plex Mono" (data / dosage / citation)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,500&family=Source+Sans+3:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:#141748;
  --ink-2:#1c2158;
  --slate:#6f7f9c;
  --slate-light:#dbe1ec;
  --gold:#F4B93D;
  --gold-dark:#d99f1f;
  --paper:#ffffff;
  --bg:#f6f5f1;
  --bg-warm:#f1efe8;
  --text:#22243a;
  --text-soft:#4d5170;
  --line:#d9d6ca;
  --line-strong:#141748;
  --radius:2px;
  --max:1180px;
  --serif:'Fraunces', Georgia, serif;
  --sans:'Source Sans 3', system-ui, -apple-system, Segoe UI, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; font-size: 125%;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration-color:var(--slate)}
a:hover{color:var(--gold-dark)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.15;margin:0 0 .5em}
h1{font-weight:700}
h2{font-weight:600}
p{margin:0 0 1.1em}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.72rem;
  color:var(--slate);
  display:inline-block;
  margin-bottom:.6em;
}
.rule{border:0;border-top:1px solid var(--line);margin:3rem 0}
[data-nosnippet]{}

/* ---------- Masthead / Header ---------- */
.masthead{
  background:var(--paper);
  border-bottom:3px solid var(--ink);
  position:sticky;top:0;z-index:100;
}
.masthead-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:var(--max);margin:0 auto;
  gap:16px;flex-wrap:wrap;
}
.brand{
  font-family:var(--serif);font-weight:700;font-size:1.5rem;color:var(--ink);
  text-decoration:none;letter-spacing:-.01em;display:flex;align-items:baseline;gap:8px;
}
.brand small{
  font-family:var(--mono);font-size:.6rem;color:var(--slate);
  text-transform:uppercase;letter-spacing:.12em;font-weight:500;
}
.masthead nav{display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.masthead nav a{
  font-family:var(--sans);font-weight:600;font-size:.92rem;color:var(--text);
  text-decoration:none;position:relative;padding:4px 0;
}
.masthead nav a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);
  transition:width .25s ease;
}
.masthead nav a:hover::after{width:100%}
.btn-buynow{
  background:var(--gold);color:var(--ink);font-family:var(--sans);font-weight:700;
  padding:10px 22px !important;border-radius:var(--radius);text-decoration:none;font-size:.9rem;
  letter-spacing:.02em;border:1px solid var(--gold-dark);
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn-buynow:hover{
  background:var(--gold-dark);color:var(--ink);transform:translateY(-2px);
  box-shadow:0 6px 14px rgba(20,23,72,.18);
}
.masthead-strip{
  background:var(--ink);color:#fff;font-family:var(--mono);font-size:.72rem;
  letter-spacing:.08em;text-transform:uppercase;padding:6px 0;text-align:center;
}
.masthead-strip a{color:var(--gold);text-decoration:underline}

/* ---------- Hero / Intro ---------- */
.intro{
  background:var(--paper);
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.intro-grid{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center;
}
.intro-media{position:relative}
.intro-media .frame{
  border:1px solid var(--line);padding:14px;background:var(--bg-warm);
  position:relative;
}
.intro-media img{
  width:100%;border:1px solid var(--slate-light);
  animation:fadeInUp .9s ease both;
}
.intro-media .badge{
  position:absolute;top:-14px;right:-14px;background:var(--ink);color:#fff;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;
  padding:8px 12px;border:1px solid var(--gold);animation:fadeIn 1.2s ease .3s both;
}
.intro-content h1{
  font-size:clamp(2.4rem,4vw,3.3rem);
  margin-bottom:.15em;
}
.intro-content h2{
  font-family:var(--sans);font-weight:600;font-size:1.15rem;color:var(--text-soft);
  margin-bottom:1.1em;padding-bottom:1.1em;border-bottom:1px solid var(--line);
}
.intro-content p{font-size:1.05rem}
.intro-facts{
  display:flex;gap:22px;flex-wrap:wrap;margin:1.6em 0;padding:18px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.intro-fact{font-family:var(--mono);font-size:.78rem;color:var(--text-soft)}
.intro-fact strong{display:block;color:var(--ink);font-size:1.15rem;font-family:var(--serif)}
.btn-visit{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--ink);color:#fff;font-weight:700;padding:15px 30px;
  border-radius:var(--radius);text-decoration:none;font-size:1rem;margin-top:.4em;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  border:1px solid var(--ink);
}
.btn-visit:hover{background:var(--ink-2);transform:translateY(-3px);box-shadow:0 10px 22px rgba(20,23,72,.28);color:#fff}
.btn-visit svg{transition:transform .2s ease}
.btn-visit:hover svg{transform:translateX(4px)}

@keyframes fadeInUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ---------- Generic Section ---------- */
section.block{padding:64px 0}
section.block.alt{background:var(--bg-warm)}
.block h2{font-size:clamp(1.6rem,2.6vw,2.1rem);max-width:820px}
.block .lede{font-size:1.08rem;color:var(--text-soft);max-width:760px}
.snippet-answer{
  background:var(--paper);border-left:3px solid var(--gold);
  padding:14px 20px;margin:0 0 1.4em;font-size:1.02rem;
}

/* Reveal-on-scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- Quick Overview Table ---------- */
.overview-table-wrap{overflow-x:auto;border:1px solid var(--line);background:var(--paper)}
table.overview{width:100%;border-collapse:collapse;font-size:.96rem}
table.overview th{
  background:var(--ink);color:#fff;text-align:left;padding:14px 16px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
}
table.overview td{padding:13px 16px;border-top:1px solid var(--line)}
table.overview tr:nth-child(even) td{background:var(--bg-warm)}
table.overview td a{font-weight:700}

/* ---------- Mechanism dossier cards ---------- */
.dossier{display:flex;flex-direction:column;gap:0}
.dossier-item{
  display:grid;grid-template-columns:90px 1fr;gap:28px;
  padding:34px 0;border-top:1px solid var(--line);
}
.dossier-item:last-child{border-bottom:1px solid var(--line)}
.dossier-num{font-family:var(--serif);font-size:2.4rem;color:var(--slate-light);font-weight:700}
.dossier-body h3{font-size:1.35rem;margin-bottom:.3em}
.dossier-meta{
  display:flex;gap:14px;flex-wrap:wrap;font-family:var(--mono);font-size:.72rem;
  color:var(--slate);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.9em;
}
.dossier-meta span{background:var(--bg-warm);padding:3px 9px;border:1px solid var(--line)}
.dossier-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:1em}
.dossier-col h4{
  font-family:var(--sans);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;
  color:var(--slate);margin-bottom:.4em;
}
.verdict{
  margin-top:1em;padding:12px 16px;background:var(--bg-warm);border-left:3px solid var(--ink);
  font-size:.95rem;
}
.verdict strong{color:var(--ink)}

/* ---------- Benefit / Pros-Cons cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.card{
  background:var(--paper);border:1px solid var(--line);padding:26px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(20,23,72,.1);border-color:var(--slate)}
.card .icon{width:38px;height:38px;color:var(--ink);margin-bottom:14px}
.card h3{font-size:1.12rem;margin-bottom:.4em}
.card p{font-size:.96rem;color:var(--text-soft);margin-bottom:0}

.proscons{border:1px solid var(--line);background:var(--paper)}
.proscons-head{
  display:grid;grid-template-columns:1fr 1fr;
}
.proscons-head div{
  font-family:var(--mono);text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;
  padding:14px 20px;color:#fff;
}
.proscons-head .pro{background:var(--ink)}
.proscons-head .con{background:var(--slate)}
.proscons-body{display:grid;grid-template-columns:1fr 1fr}
.proscons-body ul{margin:0;padding:20px 20px 20px 38px;font-size:.95rem}
.proscons-body ul:first-child{border-right:1px solid var(--line)}
.proscons-body li{margin-bottom:.7em}

/* ---------- Review summary ---------- */
.review-summary{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start}
.review-score{
  background:var(--ink);color:#fff;padding:30px;text-align:center;border:1px solid var(--ink);
}
.review-score .num{font-family:var(--serif);font-size:3.2rem;font-weight:700;color:var(--gold)}
.review-score .stars{letter-spacing:.15em;font-size:1.2rem;color:var(--gold);margin:.2em 0}
.review-score p{color:var(--slate-light);font-size:.82rem;margin:0}
.review-bars{display:flex;flex-direction:column;gap:10px}
.review-bar{display:grid;grid-template-columns:110px 1fr 40px;align-items:center;gap:10px;font-size:.85rem}
.review-bar .track{background:var(--slate-light);height:8px;position:relative;overflow:hidden}
.review-bar .fill{position:absolute;left:0;top:0;bottom:0;background:var(--gold);width:0;transition:width 1.2s ease}
.review-bar.in .fill{width:var(--w)}

/* ---------- Pricing ---------- */
.pricing-wrap{text-align:center}
.pricing-img-link{display:inline-block;position:relative;max-width:720px;margin:0 auto;border:1px solid var(--line)}
.pricing-img-link img{transition:transform .35s ease}
.pricing-img-link:hover img{transform:scale(1.015)}
.pricing-img-link::after{
  /* content:"View pricing & official page →"; */
  position:absolute;left:0;right:0;bottom:0;background:linear-gradient(0deg,rgba(20,23,72,.92),transparent);
  color:#fff;font-family:var(--mono);font-size:.78rem;letter-spacing:.05em;padding:22px 16px 12px;
  opacity:0;transition:opacity .25s ease;
}
.pricing-img-link:hover::after{opacity:1}

/* ---------- Guarantee ---------- */
.guarantee{
  display:grid;grid-template-columns:180px 1fr;gap:34px;align-items:center;
  background:var(--paper);border:1px solid var(--line);padding:34px;
}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;padding:20px 0;
  font-family:var(--serif);font-size:1.08rem;color:var(--ink);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q .plus{font-family:var(--mono);font-size:1.3rem;color:var(--gold-dark);transition:transform .25s ease}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:600px}
.faq-a p{padding:0 0 20px;font-size:.98rem;color:var(--text-soft)}

/* ---------- Safety / callouts ---------- */
.callout{border:1px solid var(--line);border-left:4px solid var(--slate);background:var(--paper);padding:22px 26px}
.callout.warn{border-left-color:var(--gold-dark);background:#fdf6e8}

/* ---------- Research list ---------- */
.research-list{display:flex;flex-direction:column;gap:16px}
.research-item{
  display:grid;grid-template-columns:70px 1fr;gap:20px;padding:18px 0;border-top:1px solid var(--line);
}
.research-tag{font-family:var(--mono);font-size:.72rem;color:var(--slate);text-transform:uppercase}
.research-item h4{margin:0 0 .3em;font-size:1.02rem;font-family:var(--sans);font-weight:700;color:var(--ink)}
.research-item p{font-size:.9rem;color:var(--text-soft);margin:0 0 .4em}
.research-item a{font-family:var(--mono);font-size:.78rem}

/* ---------- Edu page nav cards ---------- */
.edu-links{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:2rem}
.edu-links a{
  display:block;background:var(--paper);border:1px solid var(--line);padding:22px;
  text-decoration:none;transition:all .25s ease;
}
.edu-links a:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:0 12px 26px rgba(20,23,72,.1)}
.edu-links .eyebrow{margin-bottom:.8em}
.edu-links h3{font-size:1.05rem;color:var(--ink)}
.edu-links p{font-size:.85rem;color:var(--text-soft);margin:0}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:var(--slate-light);padding:50px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.footer-grid h4{color:#fff;font-family:var(--sans);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1em}
.footer-grid a{color:var(--slate-light);text-decoration:none;display:block;margin-bottom:.6em;font-size:.92rem}
.footer-grid a:hover{color:var(--gold)}
.footer-brand{font-family:var(--serif);color:#fff;font-size:1.4rem;margin-bottom:.4em}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.15);padding-top:20px;font-size:.8rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--slate-light);
}
.footer-bottom a{color:var(--slate-light)}

/* ---------- Back to top ---------- */
#backToTop{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;background:var(--ink);
  color:#fff;border:1px solid var(--gold);display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s ease, transform .3s ease;z-index:90;
}
#backToTop.show{opacity:1;pointer-events:auto}
#backToTop:hover{background:var(--gold);color:var(--ink);transform:translateY(-4px)}

/* ---------- Legal pages ---------- */
.legal{padding:70px 0 90px;background:var(--paper)}
.legal .container{max-width:840px}
.legal h1{font-size:2.2rem;margin-bottom:.2em}
.legal .updated{font-family:var(--mono);font-size:.8rem;color:var(--slate);margin-bottom:2.4em;display:block}
.legal h2{font-size:1.3rem;margin-top:2em}
.legal ul{padding-left:1.4em}
.legal li{margin-bottom:.5em}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .intro-grid{grid-template-columns:1fr}
  .intro-media{order:-1}
  .grid-3{grid-template-columns:1fr 1fr}
  .review-summary{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .edu-links{grid-template-columns:1fr}
}
@media (max-width:720px){
  .masthead nav{display:none}
  .masthead-top{justify-content:space-between}
  .grid-3,.grid-2,.dossier-grid,.proscons-head,.proscons-body{grid-template-columns:1fr}
  .proscons-body ul:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .dossier-item{grid-template-columns:1fr}
  .guarantee{grid-template-columns:1fr;text-align:center}
  .footer-grid{grid-template-columns:1fr}
  section.block{padding:44px 0}
  .intro{padding:44px 0}
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}