/* =========================================================
   BioAscend Research Library
   Scoped to .ba-lib so nothing leaks into the rest of the site.
   ========================================================= */
.ba-lib{max-width:1200px;margin:0 auto 90px;padding:0 24px;color:#e8f1ff}
.ba-lib *{box-sizing:border-box}
.ba-lib a{color:inherit}
.ba-lib .eyebrow{font-size:12px;letter-spacing:.19em;color:#66baff;font-weight:750;text-transform:uppercase}
.ba-lib .eyebrow:before{content:"";display:inline-block;width:24px;height:3px;background:#269bff;vertical-align:middle;margin-right:12px}

/* ---------- breadcrumb ---------- */
.ba-lib .lib-crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:#7f97b4;padding:28px 0 0}
.ba-lib .lib-crumbs a{color:#9ecdf2;text-decoration:none}
.ba-lib .lib-crumbs a:hover{text-decoration:underline;text-underline-offset:3px}
.ba-lib .lib-crumbs span[aria-hidden]{color:#41607f}

/* ---------- index hero ---------- */
.ba-lib .lib-hero{padding:52px 0 38px;max-width:780px}
.ba-lib .lib-hero h1{font-size:clamp(34px,4.2vw,54px);line-height:1.1;margin:16px 0 18px;letter-spacing:-.01em}
.ba-lib .lib-hero p{color:#aabed3;font-size:17px;line-height:1.7;margin:0}

.ba-lib .lib-topics{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;padding:0;list-style:none}
.ba-lib .lib-topics li{border:1px solid #2b4564;background:#10243b;color:#bad9f2;border-radius:999px;padding:7px 14px;font-size:13px}
.ba-lib .lib-topics li.is-live{border-color:#3d7fbf;background:#163556;color:#fff}

/* ---------- article cards ---------- */
.ba-lib .lib-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.ba-lib .lib-card{display:flex;flex-direction:column;border:1px solid #293c51;background:#101c2d;border-radius:15px;overflow:hidden;text-decoration:none;transition:border-color .2s ease,transform .2s ease}
.ba-lib a.lib-card:hover,.ba-lib a.lib-card:focus-visible{border-color:#3f78ad;transform:translateY(-2px)}
.ba-lib .lib-card-media{aspect-ratio:16/9;background:radial-gradient(ellipse at 50% 15%,rgba(47,111,235,.22),transparent 65%),#0c1626;display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid #22354b}
.ba-lib .lib-card-media img{width:auto;height:118%;max-width:none;transform:rotate(-4deg) translateY(10%);box-shadow:0 16px 40px rgba(0,0,0,.45);border-radius:4px}
.ba-lib .lib-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.ba-lib .lib-tag{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#61b4ff;font-weight:700}
.ba-lib .lib-card h2,.ba-lib .lib-card h3{font-size:19px;line-height:1.35;margin:10px 0 10px;color:#fff}
.ba-lib .lib-card p{color:#9fb4cb;font-size:14.5px;line-height:1.65;margin:0 0 18px}
.ba-lib .lib-meta{margin-top:auto;font-size:12.5px;color:#7f97b4;display:flex;gap:14px}
.ba-lib .lib-card.is-soon{border-style:dashed;background:transparent}
.ba-lib .lib-card.is-soon .lib-card-body{justify-content:center}
.ba-lib .lib-card.is-soon ul{margin:6px 0 0;padding-left:18px;color:#9fb4cb;font-size:14px;line-height:1.9}

/* ---------- article layout ---------- */
.ba-lib .lib-article-head{max-width:800px;padding:34px 0 30px}
.ba-lib .lib-article-head h1{font-size:clamp(32px,3.8vw,48px);line-height:1.12;margin:14px 0 18px;letter-spacing:-.01em}
.ba-lib .lib-lead{color:#b9cbe0;font-size:18px;line-height:1.7;margin:0 0 20px}
.ba-lib .lib-byline{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:#7f97b4;padding-top:16px;border-top:1px solid #1f3247}

.ba-lib .lib-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start}
.ba-lib .lib-body{max-width:740px;font-size:16.5px}
.ba-lib .lib-body h2{font-size:clamp(23px,2.4vw,29px);line-height:1.25;margin:52px 0 16px;color:#fff;scroll-margin-top:110px}
.ba-lib .lib-body h3{font-size:18px;margin:30px 0 10px;color:#fff}
.ba-lib .lib-body p,.ba-lib .lib-body li{color:#b0c3d8;line-height:1.78}
.ba-lib .lib-body p{margin:0 0 18px}
.ba-lib .lib-body ul,.ba-lib .lib-body ol{padding-left:22px;margin:0 0 20px}
.ba-lib .lib-body li{margin:6px 0}
.ba-lib .lib-body strong{color:#e8f1ff}
.ba-lib .lib-body a{color:#73c2ff;text-decoration:underline;text-underline-offset:3px}
.ba-lib .lib-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:#14273d;border:1px solid #27425f;border-radius:5px;padding:1px 6px;color:#cfe6ff}

/* sticky table of contents */
.ba-lib .lib-toc{position:sticky;top:100px;border:1px solid #293c51;background:#101c2d;border-radius:14px;padding:20px 20px 16px}
.ba-lib .lib-toc h2{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#61b4ff;margin:0 0 12px}
.ba-lib .lib-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.ba-lib .lib-toc li{counter-increment:toc;margin:0}
.ba-lib .lib-toc a{display:flex;gap:10px;padding:7px 0;font-size:13.5px;line-height:1.45;color:#a9bfd6;text-decoration:none;border-top:1px solid #1b2d42}
.ba-lib .lib-toc li:first-child a{border-top:0}
.ba-lib .lib-toc ol a:before{content:counter(toc,decimal-leading-zero);color:#4f7da6;font-size:12px;font-variant-numeric:tabular-nums;padding-top:1px}
.ba-lib .lib-toc a:hover,.ba-lib .lib-toc a.is-active{color:#fff}
.ba-lib .lib-toc-cta{display:block;margin-top:14px;padding-top:14px;border-top:1px solid #22354b;font-size:13px;color:#73c2ff!important;text-decoration:none}

/* key-takeaways box */
.ba-lib .lib-keypoints{border:1px solid #2d5378;background:linear-gradient(160deg,#122c48,#0f1d30);border-radius:14px;padding:22px 24px;margin:6px 0 34px}
.ba-lib .lib-keypoints h2{font-size:12px!important;letter-spacing:.16em;text-transform:uppercase;color:#66baff!important;margin:0 0 10px!important}
.ba-lib .lib-keypoints ul{margin:0;padding-left:20px}
.ba-lib .lib-keypoints li{color:#d4e4f5}

/* annotated COA figure */
.ba-lib .lib-annotated{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:26px;align-items:start;margin:24px 0 30px}
.ba-lib .lib-annotated figure{margin:0}
.ba-lib .lib-annotated figure a{display:block;border-radius:8px;overflow:hidden;border:1px solid #2b4564;background:#fff}
.ba-lib .lib-annotated img{display:block;width:100%;height:auto}
.ba-lib .lib-annotated figcaption{font-size:12.5px;color:#7f97b4;margin-top:9px;line-height:1.5}
.ba-lib .lib-fields{list-style:none;margin:0!important;padding:0!important;counter-reset:f}
.ba-lib .lib-fields li{counter-increment:f;position:relative;padding:0 0 14px 40px!important;margin:0 0 14px!important;border-bottom:1px solid #1d3046;font-size:15px}
.ba-lib .lib-fields li:last-child{border-bottom:0;margin-bottom:0!important}
.ba-lib .lib-fields li:before{content:counter(f);position:absolute;left:0;top:1px;width:26px;height:26px;border-radius:50%;background:#173a5d;border:1px solid #3a76ad;color:#cfe8ff;font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center}
.ba-lib .lib-fields b{display:block;color:#fff;font-weight:650;margin-bottom:2px}

/* stat pair (purity vs quantity) */
.ba-lib .lib-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0 26px}
.ba-lib .lib-stat{border:1px solid #293c51;background:#101c2d;border-radius:14px;padding:20px 22px}
.ba-lib .lib-stat small{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#61b4ff;font-weight:700}
.ba-lib .lib-stat strong{display:block;font-size:34px;line-height:1.15;margin:8px 0 6px;color:#fff;font-variant-numeric:tabular-nums}
.ba-lib .lib-stat span{font-size:14px;color:#9fb4cb;line-height:1.55;display:block}

/* callouts */
.ba-lib .lib-note{border-left:3px solid #2f8ae0;background:#0f1f33;border-radius:0 12px 12px 0;padding:16px 20px;margin:22px 0 26px}
.ba-lib .lib-note p{margin:0!important;color:#c3d5e9!important}
.ba-lib .lib-note.is-warn{border-left-color:#e0a24f;background:#1d1a14}

/* steps */
.ba-lib .lib-steps{list-style:none;padding:0!important;counter-reset:s;margin:20px 0 26px!important}
.ba-lib .lib-steps li{counter-increment:s;display:grid;grid-template-columns:34px 1fr;gap:14px;align-items:start;margin:0 0 14px!important}
.ba-lib .lib-steps li:before{content:counter(s);width:34px;height:34px;border-radius:10px;background:#19354e;border:1px solid #315a79;color:#8ccaff;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}

/* checklist */
.ba-lib .lib-check{list-style:none;padding:0!important;margin:16px 0 26px!important;display:grid;gap:10px}
.ba-lib .lib-check li{border:1px solid #293c51;background:#101c2d;border-radius:12px;padding:14px 16px 14px 46px!important;position:relative;margin:0!important;font-size:15px}
.ba-lib .lib-check li:before{content:"";position:absolute;left:16px;top:17px;width:16px;height:16px;border-radius:50%;border:2px solid #e0a24f;box-sizing:border-box}
.ba-lib .lib-check li:after{content:"";position:absolute;left:23px;top:21px;width:2px;height:6px;background:#e0a24f;border-radius:1px}

/* FAQ */
.ba-lib .lib-faq details{border:1px solid #293c51;background:#101c2d;border-radius:12px;padding:0;margin:10px 0}
.ba-lib .lib-faq summary{cursor:pointer;list-style:none;padding:16px 46px 16px 18px;font-weight:650;color:#fff;position:relative;font-size:15.5px}
.ba-lib .lib-faq summary::-webkit-details-marker{display:none}
.ba-lib .lib-faq summary:after{content:"+";position:absolute;right:18px;top:12px;font-size:22px;color:#66baff;font-weight:400}
.ba-lib .lib-faq details[open] summary:after{content:"−"}
.ba-lib .lib-faq details p{padding:0 18px 4px;margin:0 0 14px!important}

/* related products */
.ba-lib .lib-related{margin-top:64px;padding-top:40px;border-top:1px solid #1f3247}
.ba-lib .lib-related h2{font-size:clamp(22px,2.3vw,28px);margin:12px 0 22px}
.ba-lib .lib-products{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.ba-lib .lib-product{display:flex;flex-direction:column;border:1px solid #2b4564;background:#10243b;border-radius:14px;overflow:hidden;text-decoration:none;transition:border-color .2s ease,transform .2s ease}
.ba-lib .lib-product:hover,.ba-lib .lib-product:focus-visible{border-color:#3f78ad;transform:translateY(-2px)}
.ba-lib .lib-product img{width:100%;height:170px;object-fit:contain;background:radial-gradient(ellipse at 50% 20%,rgba(47,111,235,.16),transparent 65%),#0a1220;padding:8px}
.ba-lib .lib-product div{padding:14px 16px 16px}
.ba-lib .lib-product strong{display:block;font-size:15px;color:#fff;margin-bottom:4px}
.ba-lib .lib-product span{font-size:13px;color:#9ecdf2}

.ba-lib .lib-disclaimer{margin-top:40px;font-size:13px;color:#7f97b4;line-height:1.65;border:1px solid #1f3247;border-radius:12px;padding:16px 18px}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .ba-lib .lib-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .ba-lib .lib-toc{display:none}
  .ba-lib .lib-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ba-lib .lib-products{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:650px){
  .ba-lib{padding:0 16px}
  .ba-lib .lib-hero{padding:34px 0 26px}
  .ba-lib .lib-hero p{font-size:16px}
  .ba-lib .lib-grid{grid-template-columns:1fr}
  .ba-lib .lib-annotated{grid-template-columns:1fr}
  .ba-lib .lib-annotated figure{max-width:300px}
  .ba-lib .lib-stats{grid-template-columns:1fr}
  .ba-lib .lib-body{font-size:16px}
  .ba-lib .lib-lead{font-size:16.5px}
  .ba-lib .lib-product img{height:140px}
}
@media(prefers-reduced-motion:reduce){
  .ba-lib .lib-card,.ba-lib .lib-product{transition:none}
  .ba-lib a.lib-card:hover,.ba-lib .lib-product:hover{transform:none}
}

/* tables */
.ba-lib .lib-table-wrap{overflow-x:auto;margin:20px 0 28px;border:1px solid #293c51;border-radius:14px;background:#101c2d;-webkit-overflow-scrolling:touch}
.ba-lib .lib-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.ba-lib .lib-table th,.ba-lib .lib-table td{text-align:left;vertical-align:top;padding:13px 16px;border-top:1px solid #1d3046;line-height:1.55}
.ba-lib .lib-table thead th{border-top:0;background:#132741;color:#8ccaff;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.ba-lib .lib-table td{color:#b0c3d8}
.ba-lib .lib-table td:first-child,.ba-lib .lib-table tbody th{color:#fff;font-weight:600}
.ba-lib .lib-compare tbody th{width:26%;font-size:13.5px;color:#cfe3f7}
.ba-lib .lib-refs{font-size:13.5px}
.ba-lib .lib-refs li{color:#8ea6c0!important}
.ba-lib .lib-body h3#references{margin-top:40px}
/* card media variant for product imagery */
.ba-lib .lib-card-media.is-product{display:grid;grid-auto-flow:column;grid-auto-columns:1fr}
.ba-lib .lib-card-media.is-product img{width:100%;height:100%;max-width:100%;object-fit:cover;transform:none;box-shadow:none;border-radius:0}
.ba-lib .lib-table .nt{text-transform:none;letter-spacing:.02em}
@media(max-width:650px){
  .ba-lib .lib-compare{min-width:0;font-size:13px}
  .ba-lib .lib-compare th,.ba-lib .lib-compare td{padding:10px 9px}
  .ba-lib .lib-compare tbody th{width:28%;font-size:12.5px}
  .ba-lib .lib-compare thead th{font-size:10.5px;letter-spacing:.08em}
}
/* topic filters */
.ba-lib .lib-filters{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px}
.ba-lib .lib-filter{font:inherit;cursor:pointer;border:1px solid #2b4564;background:#10243b;color:#bad9f2;border-radius:999px;padding:8px 15px;font-size:13.5px;transition:border-color .2s ease,background .2s ease}
.ba-lib .lib-filter:hover{border-color:#3f78ad;color:#fff}
.ba-lib .lib-filter.is-active{border-color:#4a92d6;background:#1a4a7a;color:#fff}
.ba-lib .lib-filter:focus-visible{outline:2px solid #66baff;outline-offset:2px}
.ba-lib .lib-card[hidden]{display:none}
.ba-lib .lib-empty{color:#9fb4cb}
@media(max-width:650px){.ba-lib .lib-filters{flex-wrap:nowrap;overflow-x:auto;margin:0 -16px 22px;padding:0 16px 4px;scrollbar-width:none}.ba-lib .lib-filters::-webkit-scrollbar{display:none}.ba-lib .lib-filter{flex:0 0 auto}}
@media(max-width:650px){
  .ba-lib .lib-table{min-width:0;font-size:13px}
  .ba-lib .lib-table th,.ba-lib .lib-table td{padding:10px 9px}
  .ba-lib .lib-table thead th{font-size:10.5px;letter-spacing:.08em}
}
/* article cover images */
.ba-lib .lib-card-media.is-cover img{width:100%;height:100%;max-width:100%;object-fit:cover;transform:none;box-shadow:none;border-radius:0;transition:transform .4s ease}
.ba-lib a.lib-card:hover .lib-card-media.is-cover img{transform:scale(1.03)}
.ba-lib .lib-cover{margin:0 0 44px;border-radius:16px;overflow:hidden;border:1px solid #293c51;background:#0c1626;aspect-ratio:16/9;max-height:520px}
.ba-lib .lib-cover img{display:block;width:100%;height:100%;object-fit:cover}
@media(max-width:650px){.ba-lib .lib-cover{margin:0 -16px 30px;border-radius:0;border-left:0;border-right:0}}
@media(prefers-reduced-motion:reduce){.ba-lib a.lib-card:hover .lib-card-media.is-cover img{transform:none}}

/* ===== Article layout v2: single centred reading column ===== */
.ba-lib .lib-article-head{max-width:860px;margin:0 auto;padding:40px 0 34px;text-align:center}
.ba-lib .lib-article-head .eyebrow:before{display:none}
.ba-lib .lib-article-head h1{margin:14px auto 16px}
.ba-lib .lib-lead{max-width:740px;margin:0 auto 22px;font-size:17px;color:#a9bfd6}
.ba-lib .lib-byline{justify-content:center;border-top:0;padding-top:0;text-transform:uppercase;letter-spacing:.08em;font-size:11.5px;color:#7f97b4}
.ba-lib .lib-byline span+span:before{content:"/";margin-right:18px;color:#3d5876}
.ba-lib .lib-byline{gap:8px 18px}
.ba-lib .lib-cover{max-width:860px;margin:0 auto 48px}
.ba-lib .lib-layout{display:block;max-width:760px;margin:0 auto}
.ba-lib .lib-body{max-width:none;font-size:17px}
.ba-lib .lib-body h2{margin-top:56px}
/* contents box at the top */
.ba-lib .lib-toc{position:static;margin:0 0 40px;padding:0;border:1px solid #293c51;background:#101c2d;border-radius:14px}
.ba-lib .lib-toc summary{cursor:pointer;list-style:none;padding:16px 20px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#61b4ff;font-weight:700;position:relative}
.ba-lib .lib-toc summary::-webkit-details-marker{display:none}
.ba-lib .lib-toc summary:after{content:"+";position:absolute;right:20px;top:11px;font-size:20px;font-weight:400;letter-spacing:0}
.ba-lib .lib-toc[open] summary:after{content:"−"}
.ba-lib .lib-toc ol{columns:2;column-gap:28px;padding:0 20px 14px!important;margin:0!important}
.ba-lib .lib-toc li{break-inside:avoid}
.ba-lib .lib-toc-cta{margin:0 20px 16px;padding-top:12px}
/* open Q&A FAQ */
.ba-lib .lib-faq .lib-qa{padding:18px 0;border-top:1px solid #1d3046}
.ba-lib .lib-faq .lib-qa:first-child{border-top:0;padding-top:4px}
.ba-lib .lib-faq .lib-qa h3{margin:0 0 8px;font-size:19px;color:#fff}
.ba-lib .lib-faq .lib-qa p{margin:0!important}
.ba-lib .lib-related{max-width:1100px;margin-left:auto;margin-right:auto}
@media(max-width:650px){
  .ba-lib .lib-article-head{padding:26px 0 24px}
  .ba-lib .lib-lead{font-size:16px}
  .ba-lib .lib-body{font-size:16px}
  .ba-lib .lib-toc ol{columns:1}
  .ba-lib .lib-cover{margin:0 -16px 32px}
}
@media(max-width:650px){.ba-lib .lib-byline span+span:before{display:none}.ba-lib .lib-byline{gap:4px 14px}}

/* ===== Concentration calculator ===== */
.ba-lib .calc{border:1px solid #2d5378;background:linear-gradient(160deg,#112a45,#0e1a2b);border-radius:18px;padding:24px;margin:8px 0 36px}
.ba-lib .calc-compound{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:14px}
.ba-lib .calc-field{display:flex;flex-direction:column;gap:7px;min-width:0}
.ba-lib .calc-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#8fb3d6;font-weight:650}
.ba-lib .calc input,.ba-lib .calc select{width:100%;font:inherit;font-size:16px;color:#fff;background:#0b1626;border:1px solid #33506f;border-radius:10px;padding:11px 12px;min-width:0}
.ba-lib .calc select{appearance:auto}
.ba-lib .calc input:focus,.ba-lib .calc select:focus{outline:2px solid #4aa3f0;outline-offset:1px;border-color:#4aa3f0}
.ba-lib .calc-unit{display:grid;grid-template-columns:minmax(0,1fr) 104px;gap:8px}
.ba-lib .calc-hint{font-size:13px!important;color:#86a0bb!important;margin:12px 0 4px!important}
.ba-lib .calc-panels{display:grid;gap:16px;margin-top:18px}
.ba-lib .calc-panel{border:1px solid #284360;background:#0d1b2d;border-radius:14px;padding:18px}
.ba-lib .calc-panel h3{display:flex;align-items:center;gap:10px;margin:0 0 14px;font-size:17px}
.ba-lib .calc-panel h3 span{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:8px;background:#19406a;border:1px solid #3a76ad;color:#cfe8ff;font-size:13px}
.ba-lib .calc-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ba-lib .calc-row-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ba-lib .calc-out{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px}
.ba-lib .calc-out>div{background:#132a44;border:1px solid #2b4c6e;border-radius:11px;padding:11px 13px;min-width:0}
.ba-lib .calc-out-wide{grid-column:1/-1}
.ba-lib .calc-out small{display:block;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#7fb3e4}
.ba-lib .calc-out strong{display:block;font-size:20px;color:#fff;margin-top:3px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.ba-lib .calc-err{color:#f2c08a!important;font-size:13.5px!important;margin:10px 0 0!important}
.ba-lib .calc-reset{margin-top:14px;background:transparent;border:1px solid #3b5a7a;color:#a9c8e6;border-radius:9px;padding:9px 14px;font:inherit;font-size:13.5px;cursor:pointer}
.ba-lib .calc-reset:hover{border-color:#5a8fc4;color:#fff}
@media(max-width:650px){
  .ba-lib .calc{padding:16px;border-radius:14px}
  .ba-lib .calc-compound,.ba-lib .calc-row,.ba-lib .calc-row-3{grid-template-columns:1fr}
  .ba-lib .calc-out{grid-template-columns:1fr 1fr}
  .ba-lib .calc-out strong{font-size:18px}
}
.ba-lib .calc-out strong.is-hint{font-size:14px;font-weight:600;color:#8fb3d6}