/* ============================================================
   AVREA Laboratories — Compound / Guide Pages Stylesheet
   Shared across: /compounds/*, /guides/*, /faq/
   ============================================================ */

:root {
  --bg:          #040A12;
  --bg-2:        #070F1C;
  --panel:       #0D1826;
  --panel-2:     #122230;
  --line:        #1E3352;
  --gold:        #00C48C;
  --gold-bright: #00DFA0;
  --gold-deep:   #009E72;
  --cyan:        #3B82F6;
  --cyan-bright: #60A5FA;
  --text:        #ECF3FF;
  --text-dim:    #7A9DBB;
  --text-faint:  #3A5573;
  --alert-red:   #DC2626;
  --display:     'Jost', sans-serif;
  --body:        'Jost', sans-serif;
}

/* ===== RESET ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--body);font-weight:300;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--gold);color:#000}

/* Film-grain texture */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.015;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ===== LAYOUT ===== */
.wrap{max-width:1280px;margin:0 auto;padding:0 32px}
.wrap-narrow{max-width:860px;margin:0 auto;padding:0 32px}
.eyebrow{font-size:11px;letter-spacing:.42em;text-transform:uppercase;color:var(--cyan);font-weight:700}

/* ===== NAV ===== */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .4s,border-color .4s,padding .4s;border-bottom:1px solid transparent;padding:20px 0}
.site-nav.scrolled{background:rgba(4,10,18,.94);backdrop-filter:blur(20px);border-color:var(--line);padding:13px 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:inline-flex;align-items:center;gap:12px}
.logo .emblem{width:30px;height:30px;flex-shrink:0}
.logo .wm-main{font-family:var(--display);font-size:22px;letter-spacing:0.18em;color:var(--text);font-weight:700}
.logo .wm-sub{font-size:9px;letter-spacing:0.35em;color:var(--gold);font-weight:600;display:block;margin-top:2px}
.nav-links{display:flex;gap:36px;list-style:none}
.nav-links a{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-dim);position:relative;padding:4px 0;transition:color .3s;font-weight:500}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);transition:width .35s}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--text)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:11px 24px;background:var(--gold);color:#040A12;font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;transition:.3s}
.nav-cta:hover{background:var(--gold-bright);transform:translateY(-2px)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.burger span{width:22px;height:2px;background:var(--text);transition:.3s;display:block}

/* ===== BREADCRUMB ===== */
.breadcrumb-bar{padding:120px 0 0}
.breadcrumb{font-size:11.5px;letter-spacing:.14em;color:var(--text-faint);text-transform:uppercase;font-weight:500;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-faint);transition:.3s}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--gold)}

/* ===== COMPOUND HERO ===== */
.compound-hero{padding:30px 0 70px;border-bottom:1px solid var(--line)}
.compound-hero-inner{display:grid;grid-template-columns:1fr 340px;gap:60px;align-items:start}
.compound-category{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.compound-hero h1{font-family:var(--display);font-size:clamp(38px,5vw,64px);font-weight:700;line-height:1.06;margin-bottom:10px}
.compound-hero .subtitle{font-size:16px;color:var(--text-dim);margin-bottom:28px;line-height:1.7}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.hero-tag{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border:1px solid var(--line);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);font-weight:600;background:var(--panel)}
.hero-tag.verified{border-color:rgba(0,196,140,.3);color:var(--gold);background:rgba(0,196,140,.05)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;transition:.35s;border:1px solid var(--gold);font-family:var(--body)}
.btn-primary{background:var(--gold);color:#040A12}
.btn-primary:hover{background:var(--gold-bright);border-color:var(--gold-bright);transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,196,140,.4)}
.btn-ghost{color:var(--gold);background:transparent}
.btn-ghost:hover{background:rgba(0,196,140,.08)}

/* Compound Quick Specs Card */
.quick-specs{background:var(--panel);border:1px solid var(--line);padding:28px}
.quick-specs h3{font-family:var(--display);font-size:16px;font-weight:600;color:var(--text);margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.spec-row{display:flex;justify-content:space-between;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line);gap:16px}
.spec-row:last-child{border-bottom:none}
.spec-key{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);font-weight:700;flex-shrink:0}
.spec-val{font-size:13.5px;color:var(--text);font-weight:500;text-align:right;font-family:monospace}
.spec-val.highlight{color:var(--gold-bright)}
.purity-inline{display:flex;align-items:center;gap:10px;justify-content:flex-end}
.purity-mini-track{width:60px;height:3px;background:var(--line);border-radius:2px;overflow:hidden;flex-shrink:0}
.purity-mini-fill{height:100%;background:linear-gradient(to right,var(--gold-deep),var(--gold-bright));border-radius:2px;box-shadow:0 0 8px rgba(0,196,140,.4)}

/* ===== CONTENT SECTIONS ===== */
.content-section{padding:70px 0;border-bottom:1px solid var(--line)}
.content-section:last-of-type{border-bottom:none}
.section-label{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:16px}
.content-section h2{font-family:var(--display);font-size:clamp(26px,3vw,38px);font-weight:700;margin-bottom:24px;line-height:1.2}
.content-section h3{font-family:var(--display);font-size:20px;font-weight:600;color:var(--text);margin:32px 0 14px}

/* Two-column content layout */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}

/* Prose / long-form content */
.prose{font-size:16px;line-height:1.82;color:var(--text-dim)}
.prose p{margin-bottom:20px}
.prose strong{color:var(--text);font-weight:600}
.prose em{color:var(--gold-bright);font-style:italic}
.prose h3{font-family:var(--display);font-size:22px;font-weight:600;color:var(--text);margin:36px 0 14px}
.prose h4{font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);font-weight:700;margin:26px 0 10px}
.prose ul{list-style:none;margin:16px 0 22px}
.prose li{padding:10px 0 10px 28px;position:relative;border-bottom:1px solid var(--line);color:var(--text-dim)}
.prose li:last-child{border-bottom:none}
.prose li::before{content:"◆";position:absolute;left:0;color:var(--gold);font-size:8px;top:14px}
.prose a{color:var(--cyan-bright);border-bottom:1px solid rgba(96,165,250,.3);transition:.3s}
.prose a:hover{color:var(--text);border-color:var(--text)}
.cite{font-size:12.5px;color:var(--text-faint);font-style:italic;border-left:2px solid var(--gold-deep);padding-left:14px;margin:20px 0;line-height:1.6}
.cite a{color:var(--text-faint);border-bottom:none}

/* Mechanism steps */
.mechanism-steps{list-style:none;counter-reset:steps}
.mechanism-steps li{counter-increment:steps;display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.mechanism-steps li:last-child{border-bottom:none}
.mechanism-steps li::before{content:counter(steps);display:flex;align-items:center;justify-content:center;width:34px;height:34px;background:rgba(0,196,140,.1);border:1px solid var(--gold-deep);color:var(--gold-bright);font-family:var(--display);font-size:14px;font-weight:700;flex-shrink:0;border-radius:2px}
.step-content h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}
.step-content p{font-size:14px;color:var(--text-dim);line-height:1.65}

/* Data table */
.data-table{width:100%;border-collapse:collapse;font-size:14px;margin:24px 0}
.data-table th{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-faint);font-weight:700;padding:12px 16px;text-align:left;border-bottom:2px solid var(--line);background:var(--panel)}
.data-table td{padding:13px 16px;border-bottom:1px solid var(--line);color:var(--text-dim);vertical-align:top}
.data-table tr:hover td{background:rgba(0,196,140,.03)}
.data-table td:first-child{color:var(--text);font-weight:500}
.data-table td.mono{font-family:monospace;font-size:13px}

/* Highlight box */
.highlight-box{background:rgba(0,196,140,.05);border:1px solid rgba(0,196,140,.2);border-left:3px solid var(--gold);padding:22px 26px;margin:28px 0}
.highlight-box h4{font-size:13px;font-weight:700;color:var(--gold);letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px}
.highlight-box p{font-size:14.5px;color:var(--text-dim);line-height:1.7;margin:0}

/* Warning/compliance box */
.compliance-box{background:rgba(59,130,246,.04);border:1px solid rgba(59,130,246,.18);border-left:3px solid var(--cyan);padding:16px 22px;display:flex;align-items:flex-start;gap:14px;margin:28px 0;font-size:13.5px;color:var(--text-dim);line-height:1.65}
.compliance-box svg{width:18px;height:18px;stroke:var(--cyan);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:2px}
.compliance-box b{color:var(--text)}

/* COA panel */
.coa-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 24px;border:1px solid rgba(0,196,140,.22);background:rgba(0,196,140,.03);flex-wrap:wrap;margin:32px 0}
.coa-text h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px}
.coa-text p{font-size:12.5px;color:var(--text-dim);line-height:1.5}
.btn-coa{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border:1px solid var(--gold);color:var(--gold);font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;transition:.3s;white-space:nowrap;background:transparent;cursor:pointer;font-family:inherit}
.btn-coa:hover{background:var(--gold);color:#040A12}
.btn-coa svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2}

/* ===== PURITY BAR ===== */
.purity-panel{border:1px solid var(--line);border-left:3px solid var(--gold);padding:24px 28px;margin:32px 0;background:linear-gradient(135deg,rgba(0,196,140,.03),transparent)}
.pi-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;gap:16px;flex-wrap:wrap}
.pi-label{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--text-faint);font-weight:700;margin-bottom:4px}
.pi-compound{font-size:13px;color:var(--text-dim)}
.pi-right{text-align:right}
.pi-value{font-family:var(--display);font-size:32px;color:var(--gold-bright);font-weight:700;line-height:1;text-shadow:0 0 18px rgba(0,196,140,.4)}
.pi-method{font-size:11px;color:var(--text-faint);letter-spacing:.08em;margin-top:4px}
.pi-track{height:4px;background:var(--line);border-radius:2px;overflow:hidden;margin-bottom:16px}
.pi-fill{height:100%;border-radius:2px;background:linear-gradient(to right,var(--gold-deep),var(--gold-bright));box-shadow:0 0 10px rgba(0,196,140,.5);transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.pi-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.pmk{font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint);font-weight:700;margin-bottom:3px}
.pmv{font-size:12.5px;color:var(--text-dim);font-weight:500;font-family:monospace}

/* ===== FAQ ACCORDION ===== */
.faq-section{padding:60px 0}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;padding:24px 0;font-family:var(--display);font-size:20px;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:20px;transition:.3s;background:none;font-weight:600;cursor:pointer}
.faq-q:hover{color:var(--gold-bright)}
.faq-q .pm{color:var(--gold);font-size:24px;flex-shrink:0;transition:.3s;line-height:1}
.faq-item.open .faq-q .pm{transform:rotate(45deg);color:var(--alert-red)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;color:var(--text-dim);line-height:1.8;font-size:15.5px}
.faq-item.open .faq-a{max-height:500px}
.faq-a-inner{padding:4px 0 26px}

/* ===== RELATED COMPOUNDS ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.related-card{background:var(--panel);border:1px solid var(--line);padding:24px;transition:.3s;display:block}
.related-card:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.8)}
.rc-cat{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:8px}
.rc-name{font-family:var(--display);font-size:20px;font-weight:600;color:var(--text);margin-bottom:8px;transition:.3s}
.related-card:hover .rc-name{color:var(--gold-bright)}
.rc-desc{font-size:13px;color:var(--text-dim);line-height:1.5;margin-bottom:16px}
.rc-link{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}

/* ===== CTA SECTION ===== */
.cta-section{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:70px 0;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(0,196,140,.12),transparent 60%);pointer-events:none}
.cta-inner{position:relative;text-align:center;max-width:600px;margin:0 auto}
.cta-inner h2{font-family:var(--display);font-size:clamp(28px,3.5vw,42px);font-weight:700;margin:14px 0 16px}
.cta-inner p{color:var(--text-dim);font-size:16px;margin-bottom:32px;line-height:1.7}

/* ===== FOOTER ===== */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;padding-bottom:54px;border-bottom:1px solid var(--line)}
.footer-brand p{color:var(--text-dim);font-size:14px;max-width:300px;line-height:1.7;margin-top:18px}
.footer-col h5{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:22px;font-weight:700}
.footer-col a{display:block;color:var(--text-dim);font-size:14px;padding:6px 0;transition:.3s}
.footer-col a:hover{color:var(--cyan-bright);padding-left:4px}
.footer-bot{display:flex;justify-content:space-between;align-items:center;padding:26px 0;font-size:12.5px;color:var(--text-faint);flex-wrap:wrap;gap:12px}
.footer-legal a{color:var(--text-faint);transition:.3s;margin-left:16px}
.footer-legal a:hover{color:var(--cyan-bright)}
.footer-disclaimer{background:var(--bg);font-size:11px;color:var(--text-faint);text-align:center;padding:18px 32px;line-height:1.7;border-top:1px solid var(--line);letter-spacing:.02em}

/* ===== TOAST ===== */
.toast{position:fixed;bottom:28px;right:28px;background:var(--panel-2);border:1px solid var(--gold);padding:16px 22px;display:flex;align-items:center;gap:12px;z-index:2000;transform:translateY(120px);opacity:0;transition:.4s;font-size:14px;font-weight:600;box-shadow:0 15px 35px rgba(0,0,0,.9),0 0 18px rgba(0,196,140,.25)}
.toast.show{transform:none;opacity:1}
.toast svg{width:20px;height:20px;stroke:var(--gold);fill:none;stroke-width:2;flex-shrink:0}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .compound-hero-inner{grid-template-columns:1fr;gap:40px}
  .quick-specs{max-width:480px}
  .two-col{grid-template-columns:1fr;gap:40px}
  .three-col{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:760px){
  .wrap,.wrap-narrow{padding:0 20px}
  .nav-links{display:none}
  .burger{display:flex}
  .three-col{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .pi-meta{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .btn{justify-content:center;width:100%}
}
@media(max-width:480px){
  .related-grid{grid-template-columns:1fr}
}