/* Vantix Bio — shared blog stylesheet (articles + index)
   Design language taken from the Peptide Purity Explained article.
   Palette: cream #FAFAF7 · navy #0F1B2D · accent blue #3973B0 · sage #7BA88F · hairline #D9D2BF */

:root{
  --bg:#FAFAF7;
  --paper:#FFFFFF;
  --text:#0A1628;
  --navy:#0F1B2D;
  --accent:#3973B0;
  --accent-light:#6FA5D9;
  --hairline:#D9D2BF;
  --signal:#7BA88F;
  --signal-deep:#4A8568;
  --muted:rgba(10,22,40,.62);
  --wash-blue:rgba(57,115,176,.06);
  --wash-sage:rgba(123,168,143,.10);
  --amber:#B7791F;
  --wash-amber:rgba(183,121,31,.08);
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:'Geist',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.7;font-size:17px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
::selection{background:rgba(57,115,176,.2)}

/* ───────── Reading progress ───────── */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--accent),var(--signal));z-index:1000;transition:width .08s linear}

/* ───────── Site header ───────── */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(250,250,247,.88);
  -webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);
  border-bottom:1px solid var(--hairline);
}
.site-header-inner{
  max-width:1080px;margin:0 auto;padding:0 20px;height:60px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.site-logo{display:flex;align-items:center;flex-shrink:0}
.site-logo img{height:36px;width:auto;display:block}
.site-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:500}
.site-nav a{color:var(--text);opacity:.68;transition:opacity .2s;text-decoration:none;position:relative;padding:6px 0}
.site-nav a:hover{opacity:1}
.site-nav a.active{opacity:1}
.site-nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);border-radius:2px}
@media(max-width:520px){
  .site-header-inner{padding:0 16px;height:56px}
  .site-nav{gap:18px;font-size:13px}
  .site-nav .nav-optional{display:none}
}

/* ───────── Article layout ───────── */
.container{max-width:720px;margin:0 auto;padding:0 24px}
article{padding:56px 0 24px}

.crumbs{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:28px;
}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 8px;opacity:.5}

.eyebrow{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;font-weight:500;
}
.eyebrow .dot{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.5}
.eyebrow .quiet{color:var(--muted)}

h1{
  font-family:'Fraunces',serif;font-weight:400;font-size:2.7rem;line-height:1.14;letter-spacing:-.015em;
  color:var(--navy);margin-bottom:28px;font-variation-settings:'opsz' 96;
}
.lede,p.lead{
  font-size:1.2rem;line-height:1.65;color:rgba(10,22,40,.82);
  margin:0 0 34px;padding-left:22px;border-left:3px solid var(--accent);
}
.byline{
  display:flex;align-items:center;gap:12px;
  padding:18px 0;margin:0 0 40px;
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);
  font-size:13.5px;color:var(--muted);
}
.byline .mark{
  width:34px;height:34px;border-radius:50%;background:var(--navy);color:#FAFAF7;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.04em;
}
.byline strong{display:block;color:var(--navy);font-weight:600;font-size:14px;line-height:1.3}

.article-body > * + *{margin-top:0}
h2{font-family:'Fraunces',serif;font-weight:400;font-size:1.85rem;line-height:1.25;letter-spacing:-.01em;margin:56px 0 20px;color:var(--navy);scroll-margin-top:84px}
h3{font-family:'Fraunces',serif;font-weight:400;font-size:1.35rem;line-height:1.3;margin:36px 0 14px;color:var(--navy)}
h4{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:24px 0 10px;font-weight:600}
p{margin-bottom:22px;line-height:1.78}
strong,b{font-weight:600;color:var(--navy)}
em{font-style:italic;color:var(--signal-deep)}
code{font-family:'JetBrains Mono',monospace;font-size:.88em;background:rgba(57,115,176,.08);padding:2px 6px;border-radius:4px;color:var(--navy)}
hr{border:0;height:1px;background:var(--hairline);margin:48px 0}
hr + h2{margin-top:0}
ul,ol{margin:20px 0 24px 26px;line-height:1.8}
li{margin-bottom:10px;padding-left:4px}
li::marker{color:var(--accent)}
li ul,li ol{margin:10px 0 4px 22px}
article a{font-weight:500}
sup{font-size:.7em;line-height:0}
sup a{font-family:'JetBrains Mono',monospace;font-weight:500}

blockquote{
  margin:32px 0;padding:6px 0 6px 24px;border-left:3px solid var(--signal);
  font-family:'Fraunces',serif;font-size:1.18rem;line-height:1.6;color:var(--navy);font-style:italic;
}
blockquote p{margin:0}
blockquote cite{display:block;margin-top:10px;font-family:'Geist',sans-serif;font-size:13px;font-style:normal;color:var(--muted)}

figure{margin:36px 0}
figure img{display:block;width:100%;border:1px solid var(--hairline);border-radius:12px;background:var(--paper)}
figcaption{font-size:13.5px;color:var(--muted);margin-top:12px;line-height:1.6}
figcaption.takeaway{
  margin-top:16px;padding:22px 24px;border-radius:12px;color:#FAFAF7;font-size:15px;
  background:linear-gradient(145deg,var(--navy) 0%,#1B2E4B 100%);
}
figcaption.takeaway h3{color:#FAFAF7;font-size:1.15rem;margin:0 0 12px}
figcaption.takeaway p{color:rgba(250,250,247,.88);margin:0 0 12px;font-size:15px;line-height:1.65}
figcaption.takeaway ul{margin:0 0 0 20px;color:rgba(250,250,247,.9)}
figcaption.takeaway li{margin-bottom:6px}
figcaption.takeaway li::marker{color:var(--signal)}
figcaption.takeaway strong{color:#FAFAF7}

/* ───────── Key takeaways + table of contents ───────── */
.takeaways{
  background:var(--paper);border:1px solid var(--hairline);border-top:3px solid var(--signal);
  border-radius:12px;padding:22px 26px 12px;margin:0 0 24px;
}
.takeaways-title{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;
  color:var(--signal-deep);margin:0 0 12px;
}
.takeaways ul{margin:0 0 8px 20px}
.takeaways li{font-size:16px;line-height:1.65;margin-bottom:8px}
.toc{margin:0 0 40px;border:1px solid var(--hairline);border-radius:12px;background:var(--paper)}
.toc summary{
  list-style:none;cursor:pointer;padding:14px 20px;position:relative;
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;color:var(--muted);
}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:18px;font-weight:300;color:var(--accent)}
.toc[open] summary::after{content:'–'}
.toc ol{margin:0;padding:4px 20px 16px 44px;font-size:15px;line-height:1.5}
.toc li{margin-bottom:8px}
.toc a{color:var(--text);font-weight:500}
.toc a:hover{color:var(--accent)}

/* ───────── Callouts ───────── */
.callout,.info-box{
  background:var(--wash-blue);border-left:4px solid var(--accent);
  padding:22px 26px;margin:36px 0;border-radius:0 10px 10px 0;
}
.callout h3,.info-box h3{margin:0 0 10px;font-size:1.2rem}
.callout p:last-child,.info-box p:last-child{margin-bottom:0}
.callout ul:last-child,.callout ol:last-child{margin-bottom:0}
.warning,.warning-box{background:var(--wash-amber);border-left:4px solid var(--amber)}
.tip{background:var(--wash-sage);border-left:4px solid var(--signal)}
.callout > :first-child{margin-top:0}

/* Research-use-only notice */
.ruo-note,.highlight{
  font-size:13.5px;line-height:1.65;color:var(--muted);
  background:var(--wash-sage);border:1px solid rgba(123,168,143,.35);
  padding:14px 18px;margin:28px 0;border-radius:10px;font-style:normal;
}
.ruo-note strong,.highlight strong{color:var(--navy)}
.highlight p{margin:0;font-size:inherit}

/* ───────── Spec boxes ───────── */
.spec-box{
  background:var(--paper);border:1px solid var(--hairline);border-radius:14px;
  padding:6px 26px 10px;margin:34px 0;box-shadow:0 1px 0 rgba(15,27,45,.03);
}
.spec-box h3{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;
  color:var(--accent);margin:0;padding:18px 0 14px;border-bottom:1px solid var(--hairline);
}
.spec-row{display:grid;grid-template-columns:minmax(120px,28%) 1fr;gap:6px 24px;padding:14px 0;border-bottom:1px solid rgba(217,210,191,.55)}
.spec-row:last-child{border-bottom:0}
.spec-label{font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:600;color:var(--navy);letter-spacing:.02em;padding-top:2px}
.spec-value{font-size:15.5px;line-height:1.65;color:rgba(10,22,40,.82)}
@media(max-width:560px){.spec-row{grid-template-columns:1fr;gap:4px}.spec-box{padding:4px 20px 8px}}

/* ───────── Comparison cards ───────── */
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:34px 0}
.comparison-card{border:1px solid var(--hairline);background:var(--paper);padding:22px;border-radius:12px}
.comparison-card h4{margin:0 0 12px}
.comparison-card .value{font-family:'Fraunces',serif;font-size:2.1rem;font-weight:500;color:var(--navy);margin-bottom:8px;line-height:1.1}
.comparison-card .note{font-size:13.5px;color:var(--muted);line-height:1.55;margin:0}
@media(max-width:640px){.comparison{grid-template-columns:1fr}}

/* ───────── Tables ───────── */
.table-wrap,.cmp-wrap{overflow-x:auto;margin:32px -4px;padding:0 4px;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--paper);border:1px solid var(--hairline);border-radius:12px;overflow:hidden}
.table-wrap table,.cmp-wrap table{min-width:540px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid rgba(217,210,191,.7);vertical-align:top;line-height:1.55}
th{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;font-weight:600;
  background:rgba(15,27,45,.045);color:var(--navy);border-bottom:1px solid var(--hairline);
}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(57,115,176,.03)}
td:first-child{font-weight:600;color:var(--navy)}

@media(max-width:640px){
  .table-wrap table,.cmp-wrap table{min-width:0}
  table{font-size:13px}
  th,td{padding:10px 10px}
  th{font-size:9.5px;letter-spacing:.06em}
}

/* ───────── FAQ ───────── */
.faq-section{margin:28px 0 40px;border-top:1px solid var(--hairline)}
.faq-section details{border-bottom:1px solid var(--hairline);padding:0}
.faq-section summary{
  list-style:none;cursor:pointer;padding:20px 36px 20px 0;position:relative;
  font-family:'Fraunces',serif;font-size:1.15rem;line-height:1.4;color:var(--navy);
}
.faq-section summary::-webkit-details-marker{display:none}
.faq-section summary::after{
  content:'+';position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-family:'Geist',sans-serif;font-size:22px;font-weight:300;color:var(--accent);transition:transform .2s;
}
.faq-section details[open] summary::after{content:'–'}
.faq-section details p{padding:0 0 22px;margin:0;color:rgba(10,22,40,.82);font-size:16px}
.faq-q{font-weight:600;margin-top:22px;color:var(--navy)}
dl{margin:24px 0}
dt{font-family:'Fraunces',serif;font-size:1.1rem;color:var(--navy);margin-top:22px}
dd{margin:8px 0 0;color:rgba(10,22,40,.82)}

/* ───────── References ───────── */
.references,ol.refs{
  margin:24px 0 32px;font-size:13.5px;line-height:1.65;color:var(--muted);
}
.references ol,ol.refs{margin-left:22px}
.references li,ol.refs li{margin-bottom:10px;padding-left:6px}
.references a,ol.refs a{color:var(--accent)}
.references strong{color:rgba(10,22,40,.82);font-weight:500}
.references em{color:inherit}

/* ───────── CTA panel ───────── */
.cta-box{
  background:linear-gradient(150deg,var(--navy) 0%,#1B2E4B 100%);color:#FAFAF7;
  padding:44px 36px;border-radius:18px;margin:56px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-box::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 220px at 85% -10%,rgba(111,165,217,.22),transparent 70%),radial-gradient(420px 200px at 0% 110%,rgba(123,168,143,.18),transparent 70%);
}
.cta-box > *{position:relative}
.cta-box h2,.cta-box h3{color:#FAFAF7;margin:0 0 14px;font-size:1.6rem;line-height:1.25}
.cta-box strong{color:#FAFAF7;display:block;font-family:'Fraunces',serif;font-weight:400;font-size:1.5rem;margin-bottom:12px}
.cta-box p{color:rgba(250,250,247,.82);max-width:560px;margin:0 auto 26px;font-size:16px}
.cta-box a:not(.btn-primary):not(.btn-secondary){color:#FAFAF7;border-bottom:1px solid rgba(250,250,247,.5)}
.cta-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:6px}
.btn-primary,.btn-secondary{
  display:inline-block;padding:14px 28px;border-radius:999px;font-size:14.5px;font-weight:600;
  text-decoration:none !important;transition:all .25s;line-height:1.2;
}
.btn-primary{background:#FAFAF7;color:var(--navy) !important}
.btn-primary:hover{background:var(--accent-light);color:var(--navy) !important}
.btn-secondary{background:transparent;color:#FAFAF7 !important;border:1.5px solid rgba(250,250,247,.35)}
.btn-secondary:hover{border-color:#FAFAF7;background:rgba(250,250,247,.08)}
@media(max-width:560px){.cta-box{padding:36px 22px;border-radius:16px}.btn-primary,.btn-secondary{width:100%;text-align:center}}

/* ───────── Related articles ───────── */
.related{margin:64px 0 8px;padding-top:36px;border-top:1px solid var(--hairline)}
.related > h3{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;
  color:var(--muted);margin:0 0 18px;
}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.related-card{
  display:block;background:var(--paper);border:1px solid var(--hairline);border-radius:12px;padding:20px;
  text-decoration:none !important;color:inherit;transition:all .2s;
}
.related-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 10px 26px rgba(15,27,45,.08)}
.related-card .related-category{
  display:block;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:10px;font-weight:600;
}
.related-card h3{font-size:1.05rem;line-height:1.35;margin:0 0 8px;color:var(--navy)}
.related-card p{font-size:13.5px;line-height:1.55;color:var(--muted);margin:0}

/* ───────── Footer ───────── */
.site-footer{margin-top:72px;border-top:1px solid var(--hairline);background:#F4F2EA}
.site-footer-inner{max-width:720px;margin:0 auto;padding:36px 24px 44px;text-align:center}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;font-size:13px;margin-bottom:22px}
.footer-links a{color:var(--navy);opacity:.75;text-decoration:none}
.footer-links a:hover{opacity:1;text-decoration:underline}
.footer-ruo{font-size:12px;line-height:1.7;color:var(--muted);max-width:640px;margin:0 auto 16px}
.footer-ruo strong{color:var(--navy)}
.footer-copy{font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(10,22,40,.45)}

/* ───────── Blog index ───────── */
.index-wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.index-hero{padding:72px 0 40px;max-width:720px}
.index-hero h1{margin-bottom:20px}
.index-hero p{font-size:1.15rem;color:rgba(10,22,40,.75);margin:0}
.featured{
  display:grid;grid-template-columns:1.15fr 1fr;gap:0;margin:8px 0 28px;
  background:linear-gradient(150deg,var(--navy) 0%,#1B2E4B 100%);border-radius:20px;overflow:hidden;
  color:#FAFAF7;text-decoration:none !important;position:relative;transition:transform .25s,box-shadow .25s;
}
.featured:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(15,27,45,.22)}
.featured::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 260px at 95% 0%,rgba(111,165,217,.25),transparent 70%),radial-gradient(380px 220px at 0% 110%,rgba(123,168,143,.2),transparent 70%);
}
.featured-body{padding:44px 44px 40px;position:relative}
.featured .tag{
  display:inline-block;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--navy);background:var(--signal);padding:5px 10px;border-radius:999px;font-weight:600;margin-bottom:22px;
}
.featured h2{color:#FAFAF7;font-size:2.05rem;line-height:1.18;margin:0 0 16px;letter-spacing:-.01em}
.featured p{color:rgba(250,250,247,.8);margin:0 0 24px;font-size:16px}
.featured .meta-line{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:rgba(250,250,247,.6)}
.featured-side{position:relative;padding:44px 40px;display:flex;flex-direction:column;justify-content:flex-end;border-left:1px solid rgba(250,250,247,.1)}
.featured-stat{font-family:'Fraunces',serif;font-size:4.6rem;line-height:1;color:#FAFAF7;font-weight:300;letter-spacing:-.02em}
.featured-stat small{font-size:2rem;color:var(--signal)}
.featured-caption{margin-top:12px;font-size:13.5px;color:rgba(250,250,247,.7);line-height:1.55;max-width:30ch}
.featured .read{display:inline-block;margin-top:26px;font-weight:600;font-size:14px;color:#FAFAF7}
@media(max-width:820px){
  .featured{grid-template-columns:1fr}
  .featured-side{display:none}
  .featured-body{padding:34px 26px}
  .featured h2{font-size:1.65rem}
}
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:24px}
@media(max-width:760px){.post-grid{grid-template-columns:1fr}}
.post-card{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--hairline);border-radius:14px;
  padding:28px;text-decoration:none !important;color:inherit;transition:all .2s;
}
.post-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 12px 30px rgba(15,27,45,.08)}
.post-card .eyebrow{margin-bottom:14px;font-size:10.5px}
.post-card h2{font-size:1.35rem;line-height:1.28;margin:0 0 12px}
.post-card p{font-size:15px;line-height:1.65;color:rgba(10,22,40,.7);margin:0 0 18px;flex:1}
.post-meta{display:block;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.post-card .go{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--accent)}
.post-card:hover .go{text-decoration:underline;text-underline-offset:4px}

/* ───────── Responsive type ───────── */
@media(max-width:640px){
  body{font-size:16.5px}
  article{padding:36px 0 16px}
  h1{font-size:2.05rem;margin-bottom:22px}
  h2{font-size:1.5rem;margin-top:44px}
  h3{font-size:1.2rem}
  .lede,p.lead{font-size:1.1rem;padding-left:18px;margin-bottom:28px}
  .index-hero{padding:44px 0 28px}
  .callout,.info-box{padding:18px 20px}
}

@media print{
  .site-header,.read-progress,.cta-box,.related{display:none}
  body{background:#fff;font-size:12pt}
}

.site-nav a.nav-cta{opacity:1;background:var(--navy);color:var(--bg);padding:7px 16px;border-radius:999px;font-weight:600;transition:background .2s}
.site-nav a.nav-cta:hover{background:var(--accent)}
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;align-items:center;gap:14px;justify-content:center;padding:12px 16px;background:var(--navy);color:var(--bg);font-size:14px;box-shadow:0 -6px 24px rgba(15,27,45,.18)}
.sticky-cta[hidden]{display:none}
.sticky-cta span{opacity:.85}
.sticky-cta .sticky-go{background:var(--bg);color:var(--navy);padding:8px 16px;border-radius:999px;font-weight:600;white-space:nowrap;text-decoration:none}
.sticky-cta button{background:none;border:0;color:var(--bg);font-size:22px;line-height:1;cursor:pointer;opacity:.7;padding:0 4px}
@media(max-width:640px){.sticky-cta{justify-content:space-between;font-size:13px;gap:10px}.sticky-cta span{flex:1}}
.byline strong a{color:inherit;text-decoration:none;border-bottom:1px solid var(--hairline)}
.byline strong a:hover{border-bottom-color:var(--accent)}

/* composition bar + calculators (net peptide content article) */
.comp{margin:34px 0}
.comp-bar{display:flex;height:54px;border-radius:12px;overflow:hidden;border:1px solid var(--hairline);background:var(--paper)}
.comp-bar span{display:flex;align-items:center;min-width:0;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.04em;color:#fff;padding:0 12px;white-space:nowrap;overflow:hidden}
.comp-bar .c-target{background:var(--navy)}
.comp-bar .c-imp{background:var(--accent-light)}
.comp-bar .c-ion{background:var(--signal-deep)}
.comp-bar .c-water{background:var(--accent)}
.comp-bar .c-other{background:var(--amber)}
.comp-legend{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 22px}
.comp-legend li{display:flex;gap:10px;align-items:baseline;font-size:14.5px;line-height:1.45;margin:0;color:rgba(10,22,40,.82)}
.comp-legend i{flex:0 0 11px;height:11px;border-radius:3px;display:inline-block;transform:translateY(1px)}
.comp-legend b{color:var(--navy);font-weight:600}
.comp figcaption{margin-top:14px;font-size:13px;color:var(--muted)}
.calc{background:var(--paper);border:1px solid var(--hairline);border-radius:14px;padding:6px 26px 24px;margin:34px 0;box-shadow:0 1px 0 rgba(15,27,45,.03)}
.calc h3{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--accent);margin:0 0 20px;padding:18px 0 14px;border-bottom:1px solid var(--hairline)}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;align-items:end}
.calc label{display:block;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600;min-width:0}
.calc input,.calc select{display:block;width:100%;margin-top:8px;padding:11px 12px;font:500 16px 'Geist',system-ui,sans-serif;color:var(--navy);background:var(--bg);border:1px solid var(--hairline);border-radius:10px;box-sizing:border-box;min-width:0}
.calc input:focus,.calc select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.calc-out{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;padding-top:20px;border-top:1px solid var(--hairline)}
.calc-out.one{grid-template-columns:1fr}
.calc-k{display:block;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
.calc-v{display:block;font-family:'Fraunces',serif;font-size:1.75rem;line-height:1.2;color:var(--navy);margin-top:6px}
.calc-note{font-size:13px;line-height:1.55;color:var(--muted);margin:18px 0 0}
@media(max-width:640px){.calc{padding:6px 18px 20px}.calc-grid{gap:14px 12px}.calc-out{grid-template-columns:1fr;gap:16px}.comp-legend{grid-template-columns:1fr}.comp-bar span{font-size:10px;padding:0 8px}}

.coa-fig{margin:32px 0}
.coa-wrap{position:relative;max-width:640px;margin:0 auto;border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:#fff}
.coa-wrap.wide{max-width:760px}
.coa-wrap img{display:block;width:100%;height:auto;border:0;border-radius:0}
.mk{position:absolute;transform:translate(-50%,-50%);width:26px;height:26px;border-radius:50%;background:var(--navy);color:var(--bg);font:600 13px/26px 'Geist',system-ui,sans-serif;text-align:center;box-shadow:0 0 0 2px #fff;pointer-events:none}
.coa-key{margin:18px auto 0;max-width:640px;padding-left:0;list-style:none;counter-reset:k}
.coa-key li{counter-increment:k;position:relative;padding:0 0 12px 40px;font-size:15.5px;line-height:1.6}
.coa-key li::before{content:counter(k);position:absolute;left:0;top:1px;width:26px;height:26px;border-radius:50%;background:var(--navy);color:var(--bg);font:600 13px/26px 'Geist',system-ui,sans-serif;text-align:center}
.coa-fig figcaption{max-width:640px;margin-left:auto;margin-right:auto}
@media(max-width:640px){.mk{width:22px;height:22px;font-size:11.5px;line-height:22px}.coa-key li{padding-left:36px}.coa-key li::before{width:22px;height:22px;font-size:11.5px;line-height:22px}}