:root{--bg:#eef0fb;--card:#fff;--ink:#0b0820;--tx:#2b2942;--mu:#6b6f8e;--vi:#5b2bff;--vi2:#3d16d6;--vi-l:#e6defe;--li:#c6ff3d;--ln:#d6d8ee;--d:"Days One",Arial,sans-serif;--b:"Mulish",Arial,sans-serif;--m:"JetBrains Mono",Consolas,monospace}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);font:400 17.5px/1.72 var(--b);
  background-image:radial-gradient(circle at 1px 1px,#d4d6ec 1px,transparent 1.2px);background-size:22px 22px}
img{max-width:100%;height:auto;display:block}
a{color:var(--vi)}
code{font:500 .78rem var(--m)}
/* header */
.bk-top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--ln)}
.bk-top-in{max-width:1180px;margin:0 auto;padding:10px 22px;display:flex;align-items:center;gap:22px}
.bk-logo img{width:210px}
.bk-nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.bk-nav a{font:600 .92rem var(--b);text-decoration:none;color:var(--ink);padding:7px 13px;border:1px solid var(--ln);border-radius:8px;background:#fff}
.bk-nav a:hover{border-color:var(--vi);color:var(--vi)}
.bk-nav a.on{background:var(--ink);color:var(--li);border-color:var(--ink)}
.bk-age{font:500 .8rem var(--m);background:var(--li);color:var(--ink);padding:6px 9px;border-radius:6px;border:1px solid var(--ink)}
.bk-wbtn{display:none;width:46px;height:42px;border:1.5px solid var(--ink);border-radius:10px;background:var(--li);cursor:pointer;position:relative;padding:0}
.bk-wbtn span{position:absolute;left:9px;right:9px;height:7px;border:1.5px solid var(--ink);border-radius:2px;background:#fff}
.bk-wbtn span:nth-child(1){top:8px}.bk-wbtn span:nth-child(2){top:16px;left:11px;right:7px}.bk-wbtn span:nth-child(3){top:24px}
/* wallet menu */
.bk-wallet{position:fixed;inset:0;z-index:90;background:rgba(11,8,32,.55);visibility:hidden;opacity:0;transition:opacity .25s,visibility .25s}
.bk-wallet.open{visibility:visible;opacity:1}
.bk-wallet-in{position:absolute;left:12px;right:12px;top:12px;background:var(--ink);border-radius:22px;padding:20px 18px 18px;transform:translateY(-110%);transition:transform .45s cubic-bezier(.2,.9,.3,1.1)}
.bk-wallet.open .bk-wallet-in{transform:none}
.bk-wallet-t{display:flex;justify-content:space-between;align-items:center;margin:0 0 14px;font:400 1.05rem var(--d);color:#fff}
.bk-wallet-t span{font:500 .75rem var(--m);color:var(--li)}
.bk-wallet-stack{display:flex;flex-direction:column}
.bk-wallet-stack a{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;padding:16px 16px 26px;margin-bottom:-12px;border-radius:16px;text-decoration:none;color:var(--ink);
  background:linear-gradient(135deg,#fff,#efeaff);border:1.5px solid var(--ink);box-shadow:0 -6px 14px rgba(0,0,0,.18);
  transform:translateY(calc(var(--i) * -6px));opacity:0;transition:transform .45s calc(var(--i) * 60ms + .1s),opacity .3s calc(var(--i) * 60ms + .1s)}
.bk-wallet.open .bk-wallet-stack a{opacity:1;transform:none}
.bk-wallet-stack a:nth-child(even){background:linear-gradient(135deg,var(--vi),#7f5bff);color:#fff}
.bk-wallet-stack a:last-child{margin-bottom:0;padding-bottom:16px}
.bk-wallet-stack a.on{background:var(--li);color:var(--ink)}
.bk-wallet-stack code{grid-row:1/3;align-self:center;font-size:.7rem;opacity:.75}
.bk-wallet-stack b{font:400 1.1rem var(--d)}
.bk-wallet-stack small{font-size:.8rem;opacity:.8}
.bk-wallet-x{margin-top:16px;width:100%;background:none;border:1px dashed #5b5878;color:#cfcbe8;font:600 .95rem var(--b);padding:10px;border-radius:12px;cursor:pointer}
/* genesis */
.bk-article{max-width:900px;margin:0 auto;padding:34px 22px 10px}
.bk-genesis{background:var(--ink);color:#fff;border-radius:24px;padding:26px 30px 24px;position:relative;overflow:hidden}
.bk-genesis::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:40px;transform:rotate(18deg);background:linear-gradient(135deg,var(--vi),transparent 70%);opacity:.7}
.bk-gen-top{display:flex;gap:12px;align-items:center;flex-wrap:wrap;position:relative;z-index:1}
.bk-gen-top code{color:#a9a3d6;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.bk-chip{font:500 .75rem var(--m);background:var(--li);color:var(--ink);padding:4px 9px;border-radius:6px}
.bk-crumbs{margin:18px 0 6px;font-size:.88rem;color:#a9a3d6;position:relative;z-index:1}
.bk-crumbs a{color:#fff}
.bk-crumbs span{margin:0 8px;color:var(--li)}
.bk-genesis h1{font:400 clamp(1.75rem,3.6vw,2.6rem)/1.22 var(--d);margin:0 0 22px;position:relative;z-index:1}
.bk-gen-meta{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:0;background:#2b2846;border:1px solid #2b2846;border-radius:12px;overflow:hidden;position:relative;z-index:1}
.bk-gen-meta div{background:#14112c;padding:10px 14px;min-width:0}
.bk-gen-meta dt{font:500 .68rem var(--m);text-transform:uppercase;letter-spacing:.08em;color:#8e88bd}
.bk-gen-meta dd{margin:2px 0 0;font-weight:800;font-size:.95rem;color:#fff}
.bk-hero{margin:-10px 18px 0;position:relative;z-index:2}
.bk-hero img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:18px;border:3px solid #fff;box-shadow:0 18px 40px rgba(43,24,140,.18)}
/* chain */
.bk-chain{position:relative;margin-top:26px}
.bk-block{background:var(--card);border:1.5px solid var(--ink);border-radius:18px;padding:22px 30px 10px;position:relative;box-shadow:6px 6px 0 var(--vi-l)}
.bk-block--lead{background:var(--li)}
.bk-head{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin:-22px -30px 18px;padding:9px 30px;border-bottom:1.5px dashed var(--ln);font:500 .74rem var(--m);color:var(--mu)}
.bk-block--lead .bk-head{border-color:rgba(11,8,32,.25);color:var(--ink)}
.bk-head b{color:var(--vi);font-weight:500}
.bk-block--lead .bk-head b{color:var(--ink)}
.bk-ok{margin-left:auto;color:#14a35a}
.bk-lead{font-size:1.15rem;line-height:1.65;color:var(--ink);margin:0 0 14px;font-weight:600}
.bk-link{height:38px;display:flex;justify-content:center;gap:4px;align-items:center}
.bk-link i{width:22px;height:12px;border:3px solid var(--ink);border-radius:8px;transform:rotate(90deg)}
.bk-link i+i{margin-left:-12px;border-color:var(--vi)}
.bk-block h2{counter-increment:blk;font:400 clamp(1.3rem,2.4vw,1.6rem)/1.3 var(--d);color:var(--ink);margin:4px 0 16px;display:flex;gap:12px;align-items:flex-start}
.bk-block h2::before{content:counter(blk,decimal-leading-zero);flex:none;font:500 .78rem/1 var(--m);background:var(--vi);color:#fff;padding:7px 9px;border-radius:7px;margin-top:4px}
.bk-chain{counter-reset:blk}
.bk-block--faq h2::before{content:"?"}
.bk-block h3{font:800 1.12rem var(--b);color:var(--ink);margin:26px 0 8px;padding-left:12px;border-left:4px solid var(--li)}
.bk-block p{margin:0 0 1em}
.bk-block strong{color:var(--ink)}
.bk-block ul,.bk-block ol{padding-left:1.3em;margin:0 0 1em}
.bk-block li{margin:.25em 0}
.bk-block ul li::marker{content:"▪ ";color:var(--vi)}
/* tables */
.tbl-wrap{overflow-x:auto;margin:6px 0 20px;border:1.5px solid var(--ink);border-radius:12px}
.tbl-wrap table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:520px}
.tbl-wrap th{background:var(--ink);color:#fff;text-align:left;font:800 .8rem var(--b);text-transform:uppercase;letter-spacing:.04em;padding:10px 12px}
.tbl-wrap td{padding:9px 12px;border-top:1px solid var(--ln)}
.tbl-wrap tr:nth-child(even) td{background:#f6f5ff}
.tbl-wrap td:first-child{font-weight:700;color:var(--ink)}
/* figures */
.bk-fig{margin:10px 0 22px;border:1.5px solid var(--ink);border-radius:14px;overflow:hidden;background:#fff}
.bk-fig-bar{display:flex;gap:10px;align-items:center;padding:6px 12px;background:var(--vi-l);border-bottom:1.5px solid var(--ink)}
.bk-fig-bar span{font:500 .7rem var(--m);background:var(--ink);color:var(--li);padding:2px 6px;border-radius:4px}
.bk-fig-bar code{color:var(--mu);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bk-fig img{width:100%;max-height:440px;object-fit:cover}
.bk-fig figcaption{padding:9px 14px;font-size:.88rem;color:var(--mu)}
/* calc */
.bk-calc{margin:8px 0 22px;background:var(--ink);color:#fff;border-radius:16px;padding:22px}
.bk-calc-title{font:400 1.2rem var(--d);margin:0 0 14px;color:var(--li)}
.bk-calc-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.bk-calc-f{display:flex;flex-direction:column;gap:5px;font:500 .72rem var(--m);color:#a9a3d6;text-transform:uppercase}
.bk-calc input{width:100%;background:#1c1838;border:1.5px solid #3b3664;color:#fff;border-radius:10px;padding:10px 12px;font:800 1.15rem var(--b)}
.bk-calc input:focus{outline:2px solid var(--li);border-color:transparent}
.bk-calc-out{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}
.bk-calc-out div{background:#1c1838;border-radius:10px;padding:10px 12px;border-left:4px solid var(--vi)}
.bk-calc-out span{display:block;font:500 .68rem var(--m);color:#a9a3d6;text-transform:uppercase}
.bk-calc-out b{font:400 1.15rem var(--d);color:var(--li)}
.bk-calc-out b.is-neg{color:#ff7a8a}
.bk-calc-note{margin:12px 0 0;font-size:.82rem;color:#a9a3d6}
/* faq = tx list */
.bk-txs{border:1.5px solid var(--ink);border-radius:12px;overflow:hidden;margin-bottom:16px}
.bk-tx+.bk-tx{border-top:1px solid var(--ln)}
.bk-tx button{width:100%;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;text-align:left;background:#fff;border:0;padding:14px 16px;cursor:pointer;font:700 1rem var(--b);color:var(--ink)}
.bk-tx button:hover{background:#f6f5ff}
.bk-tx-n{font:500 .8rem var(--m);color:var(--vi)}
.bk-st{width:28px;height:28px;border-radius:8px;border:1.5px solid var(--ink);background:#fff;position:relative}
.bk-st::before,.bk-st::after{content:"";position:absolute;left:7px;right:7px;top:12px;height:2px;background:var(--ink)}
.bk-st::after{transform:rotate(90deg);transition:transform .2s}
.bk-tx.open .bk-st{background:var(--li)}
.bk-tx.open .bk-st::after{transform:none}
.bk-tx-a{display:none;padding:2px 16px 6px calc(30px + 1.2rem);background:#fbfaff}
.bk-tx.open .bk-tx-a{display:block}
.bk-tx-a p{margin:8px 0}
.bk-tail{font-size:.85rem;color:var(--mu);padding:22px 8px 0}
.bk-tail p{margin:0}
/* mempool */
.bk-mempool{max-width:1180px;margin:40px auto 0;padding:0 22px 50px}
.bk-mem-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--ink);margin-bottom:18px;padding-bottom:8px;flex-wrap:wrap;gap:6px}
.bk-mem-head p{margin:0;font:400 1.5rem var(--d);color:var(--ink)}
.bk-mem-head span{font:500 .78rem var(--m);color:var(--vi)}
.bk-mem-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.bk-mem-card{display:flex;flex-direction:column;background:#fff;border:1.5px solid var(--ink);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}
.bk-mem-card:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--vi)}
.bk-mem-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1.5px solid var(--ink)}
.bk-mem-card small{margin:10px 14px 0;font:500 .72rem var(--m);text-transform:uppercase;color:var(--vi)}
.bk-mem-card span{margin:4px 14px 8px;font-weight:800;line-height:1.35;font-size:.98rem}
.bk-mem-card em{margin:auto 14px 14px;font:500 .78rem var(--m);font-style:normal;color:var(--vi)}
/* footer */
.bk-foot{background:var(--ink);color:#cfcbe8;border-top:6px solid var(--li)}
.bk-foot-in{max-width:1180px;margin:0 auto;padding:40px 22px 30px;display:grid;grid-template-columns:1.1fr 1.3fr 1fr;gap:34px}
.bk-foot-brand p{font-size:.88rem;line-height:1.6;margin:14px 0 0}
.bk-foot-ledger p{margin:0 0 8px;font:500 .75rem var(--m);text-transform:uppercase;color:var(--li)}
.bk-foot-ledger ol{list-style:none;margin:0;padding:0;font-size:.9rem}
.bk-foot-ledger li{display:grid;grid-template-columns:auto 1fr auto;gap:10px;padding:6px 0;border-bottom:1px dashed #34305a}
.bk-foot-ledger code{color:#7d76b3}
.bk-foot-ledger a{color:#fff;text-decoration:none}
.bk-foot-ledger a:hover{color:var(--li)}
.bk-foot-ledger span{font-size:.78rem;color:#8e88bd}
.bk-badges{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.bk-badges img{height:36px;width:auto}
.bk-copy{font:500 .78rem var(--m);color:#8e88bd;margin:16px 0 0}
/* up */
.bk-up{position:fixed;right:18px;bottom:18px;z-index:40;width:52px;height:52px;border-radius:12px;border:1.5px solid var(--ink);background:var(--li);color:var(--ink);font:400 1.2rem/1 var(--d);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:4px 4px 0 var(--ink);opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s}
.bk-up.show{opacity:1;pointer-events:auto;transform:none}
/* responsive */
@media (max-width:1020px){
  .bk-nav{display:none}
  .bk-age{margin-left:auto}
  .bk-wbtn{display:block}
  .bk-mem-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bk-foot-in{grid-template-columns:1fr 1fr}
  .bk-foot-b{grid-column:1/-1}
}
@media (max-width:640px){
  body{font-size:16.5px}
  .bk-top-in{padding:8px 16px;gap:10px}
  .bk-logo img{width:170px}
  .bk-article{padding:18px 16px 6px}
  .bk-genesis{padding:20px 18px;border-radius:18px}
  .bk-gen-meta{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bk-hero{margin:-8px 8px 0}
  .bk-block{padding:18px 18px 6px;border-radius:14px;box-shadow:4px 4px 0 var(--vi-l)}
  .bk-head{margin:-18px -18px 14px;padding:8px 18px}
  .bk-calc-fields,.bk-calc-out{grid-template-columns:1fr}
  .bk-tx button{grid-template-columns:1fr auto;padding:12px 14px}
  .bk-tx-n{display:none}
  .bk-tx-a{padding:2px 14px 6px}
  .bk-mempool{padding:0 16px 40px}
  .bk-mem-grid{grid-template-columns:1fr}
  .bk-mem-card{flex-direction:row;flex-wrap:wrap}
  .bk-mem-img{width:110px;aspect-ratio:1;border-bottom:0;border-right:1.5px solid var(--ink)}
  .bk-mem-card small,.bk-mem-card em{display:none}
  .bk-mem-card span{flex:1;align-self:center;margin:10px 12px;min-width:0}
  .bk-foot-in{grid-template-columns:1fr;padding:32px 16px 26px}
}