:root{--paper:#f6f7f3;--ink:#182b2a;--muted:#64736e;--green:#176c4e;--line:#dce2dc;--white:#fff;--nav:#132d29}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline-offset:4px;outline:3px solid #b8d94d}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.skip{z-index:20;background:#fff;padding:12px;position:fixed;top:-80px;left:20px}.skip:focus{top:15px}.shell{display:flex}.sidebar{background:var(--nav);color:#dfebe3;z-index:5;flex-direction:column;width:238px;min-height:100vh;padding:32px 23px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:-.8px;align-items:center;gap:10px;font-size:21px;font-weight:700;display:flex}.brandmark{color:#cae7af;letter-spacing:-5px;border:1px solid #88ad90;border-radius:10px;justify-content:center;align-items:center;width:38px;height:42px;padding-right:5px;font-size:19px;display:flex}.brandmark span{color:#fff}.brand-sub{letter-spacing:1.65px;color:#a4bdb0;margin-top:2px;font-size:8px;display:block}.workspace{letter-spacing:1.7px;color:#97ada2;margin:55px 0 16px;font-size:9px}nav{gap:5px;display:grid}nav a{border-radius:6px;gap:14px;padding:13px 10px;font-size:12px;display:flex}nav a:hover{background:#254039}nav a span{color:#8aa394;font-size:10px}nav a:first-child{color:#e4efca;background:#28473e}.sidebar-bottom{margin-top:auto;padding-top:30px;font-size:11px}.sidebar-bottom p{color:#95aea1;font-size:11px;line-height:1.8}.sidebar-bottom a{color:#d6e9bb;margin-top:15px;display:inline-block}.dot{background:#a0cb80;border-radius:50%;width:6px;height:6px;margin-right:7px;display:inline-block}main{flex:1;min-width:0;margin-left:238px;padding:0 48px}.topbar{border-bottom:1px solid var(--line);letter-spacing:1.2px;height:80px;color:var(--muted);justify-content:space-between;align-items:center;font-size:10px;display:flex}.topbar>div{align-items:center;gap:25px;display:flex}.topbar a{letter-spacing:0;color:var(--ink);font-size:11px}.pill{color:#436b4c;letter-spacing:.5px;background:#eef3e8;border:1px solid #d0dcca;border-radius:30px;padding:6px 11px;font-size:9px}.hero{grid-template-columns:1.25fr 1fr;align-items:center;gap:50px;padding:55px 0 48px;display:grid}.eyebrow{color:var(--green);letter-spacing:1.9px;margin-bottom:14px;font-size:9px;font-weight:700}h1{letter-spacing:-2.5px;margin:0 0 20px;font-size:clamp(34px,3.7vw,58px);font-weight:600;line-height:1.12}h1 span{color:var(--green)}.hero p{max-width:420px;color:var(--muted);margin-bottom:26px;font-size:13px;line-height:1.8}.hero-actions{align-items:center;gap:20px;display:flex}.button{background:var(--green);color:#fff;border:1px solid var(--green);white-space:nowrap;border-radius:5px;justify-content:space-between;align-items:center;gap:22px;min-height:42px;padding:12px 17px;font-size:11px;font-weight:600;display:inline-flex}.button:hover{background:#11563e}.text-link{color:var(--green);font-size:11px;font-weight:600}.tech-row{flex-wrap:wrap;gap:6px;margin-top:30px;display:flex}.tech-row span{border:1px solid var(--line);color:#5c6d62;border-radius:4px;padding:4px 8px;font-size:9px}.ledger-visual{color:#fff;background:#193b32;border-radius:13px;padding:26px 29px;transform:rotate(-1deg);box-shadow:10px 12px #e3e9dd}.visual-top{letter-spacing:1.7px;color:#b9cdb4;justify-content:space-between;font-size:8px;display:flex}.visual-title{letter-spacing:-.7px;margin:30px 0 19px;font-size:26px;line-height:1.25}.visual-rule{border-top:1px solid #3c5749;align-items:center;gap:16px;padding:13px 0;display:flex}.visual-rule>span{color:#a8ca8c;font-size:10px}.visual-rule>div{flex:1;font-size:12px}.visual-rule small{color:#a9bcb0;margin-top:2px;font-size:9px;display:block}.visual-rule b{color:#b7d49c;font-weight:400}.visual-footer{letter-spacing:1.1px;color:#b7c7b8;justify-content:space-between;margin-top:15px;font-size:7px;display:flex}.section{border-top:1px solid var(--line);margin-bottom:35px;padding:42px 0 10px}.section-heading{justify-content:space-between;align-items:center;gap:25px;margin-bottom:20px;display:flex}h2{letter-spacing:-.9px;margin:0 0 8px;font-size:26px;font-weight:600;line-height:1.25}.section-heading p{color:var(--muted);margin:0;font-size:12px}.notice{border:1px solid var(--line);color:#426348;background:#edf2e9;border-radius:5px;margin:15px 0 19px;padding:12px 14px;font-size:11px}.error{color:#963e32;background:#fff0ed;border:1px solid #e5b9ae;border-radius:5px;margin-bottom:15px;padding:12px;font-size:12px}.metrics{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px;display:grid}.metric{border:1px solid var(--line);background:#fff;border-radius:7px;padding:20px 22px}.metric>span{color:var(--muted);font-size:11px}.metric strong{letter-spacing:-.7px;margin:7px 0;font-size:29px;font-weight:500;display:block}.metric small{color:var(--muted);font-size:9px}.metric:last-child{background:#edf3e7;border-color:#c9d9bb}.sim-grid,.api-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.panel{border:1px solid var(--line);background:#fff;border-radius:7px;min-width:0;padding:22px}.panel-top{justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px;display:flex}h3{margin:0;font-size:13px;font-weight:600}.mini-label{color:#6d7a71;letter-spacing:1px;font-size:8px}.panel label{color:var(--muted);margin:16px 0 7px;font-size:10px;display:block}select,.amount-input{border:1px solid var(--line);width:100%;height:43px;color:var(--ink);background:#fafbf8;border-radius:4px}select{padding:0 12px}.amount-input{align-items:center;gap:12px;padding:0 12px;display:flex}.amount-input input{outline-offset:0;width:100%;min-width:0;color:var(--ink);background:0 0;border:0;font-size:16px}.amount-input>span{color:#6f7d70}.full{width:100%;margin-top:20px}.fine{color:var(--muted);margin:14px 0 0;font-size:10px;line-height:1.7}.account-panel{background:#f0f3ec}.tag{color:#4c754b;border:1px solid #c8d9bd;border-radius:3px;padding:4px 7px;font-size:8px}.account-id{letter-spacing:1px;margin-top:25px;font-size:22px}.account-panel>p{color:var(--muted);font-size:11px}.util-label{justify-content:space-between;margin:25px 0 8px;font-size:10px;display:flex}.util-label strong{font-weight:500}.meter{background:#d8e3cf;border-radius:3px;height:6px;overflow:hidden}.meter>div{background:#3e7950;border-radius:3px;height:100%}.account-note{border-top:1px solid #dbe2d3;justify-content:space-between;gap:10px;padding:13px 0;display:flex}.account-note:first-of-type{margin-top:25px}.account-note span{letter-spacing:.5px;color:var(--muted);font-size:8px}.account-note b{font-size:9px;font-weight:400}.history{margin-top:20px}.history .panel-top{margin-bottom:10px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%;font-size:11px}th{text-transform:uppercase;letter-spacing:.7px;color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;padding:12px 8px;font-size:8px;font-weight:500}td{white-space:nowrap;border-bottom:1px solid #eef0ea;padding:14px 8px}.empty{text-align:center;color:#7b887f;height:90px;font-size:11px}.type{color:#416d46;background:#f0f5ec;border:1px solid #dce6d5;border-radius:4px;padding:4px 7px;font-size:8px}.type.purchase{color:#896932;background:#f8f0e4;border-color:#e9dfc9}.endpoint{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.endpoint b{color:var(--green);background:#edf5e8;border-radius:3px;padding:4px 6px;font-size:9px}.endpoint code{overflow-wrap:anywhere;font-size:11px}pre{color:#385344;white-space:pre-wrap;overflow-wrap:anywhere;background:#f1f4ef;border:1px solid #e1e6dd;border-radius:4px;margin:15px 0 0;padding:17px;font-size:10px;line-height:1.8;overflow-x:auto}.api-grid .panel{min-width:0}.layer-grid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.layer{border:1px solid var(--line);background:#fff;border-radius:6px;padding:20px 17px;display:block}.layer:hover{border-color:#94b38b}.layer>span{color:#739166;font-size:10px}.layer h3{margin-top:21px}.layer p{color:var(--muted);min-height:72px;font-size:11px;line-height:1.7}.layer b{color:var(--green);font-size:9px;font-weight:500}.secondary{color:var(--green);background:0 0}.secondary:hover{color:#fff}.code-details{border:1px solid var(--line);background:#fff;border-radius:5px;margin-top:18px;padding:15px 18px}.code-details summary{cursor:pointer;font-size:11px}.architecture{grid-template-columns:1fr 20px 1fr 20px 1fr;align-items:center;gap:10px;margin:27px 0;display:grid}.architecture>div{background:#eef4e8;border:1px solid #ccdac2;border-radius:6px;padding:21px 15px}.architecture>div>span{letter-spacing:1px;color:#638050;font-size:8px}.architecture strong{margin:12px 0 7px;font-size:12px;font-weight:600;display:block}.architecture small{color:var(--muted);font-size:9px}.architecture>b{color:#8ba177;text-align:center;font-weight:400}.decisions{grid-template-columns:repeat(3,1fr);gap:30px;display:grid}.decisions p{color:var(--muted);font-size:11px;line-height:1.8}.walkthrough{background:#e8efdf;border:1px solid #d3dfc7;border-radius:9px;grid-template-columns:1.4fr 1fr;gap:80px;margin:40px 0;padding:35px;display:grid}.walkthrough h2{font-size:29px;line-height:1.25}.walkthrough p{color:#5a6c51;max-width:390px;margin-bottom:22px;font-size:11px;line-height:1.8}.walkthrough-note{letter-spacing:1px;color:#638053;border-left:1px solid #bfceb1;align-self:end;padding-left:25px;font-size:8px}.walkthrough-note p{letter-spacing:0;margin:15px 0 0;font-size:11px;line-height:1.9}footer{border-top:1px solid var(--line);color:#73806e;justify-content:space-between;gap:20px;padding:25px 0;font-size:9px;display:flex}@media (min-width:1600px){main{padding:0 max(48px,50vw - 715px)}.hero{gap:80px}}@media (max-width:1150px){.sidebar{width:205px;padding:28px 17px}.brand{font-size:19px}main{margin-left:205px;padding:0 28px}.hero{gap:28px}.hero-actions{flex-direction:column;align-items:flex-start;gap:13px}.ledger-visual{padding:23px}.layer-grid{grid-template-columns:repeat(2,1fr)}.layer p{min-height:40px}.walkthrough{gap:30px}}@media (max-width:800px){.sidebar{width:auto;min-height:0;padding:19px 22px;position:static}.sidebar .workspace,.sidebar nav,.sidebar-bottom{display:none}.brand{font-size:20px}.brand-sub{font-size:7px}.brandmark{width:32px;height:34px}.shell{display:block}main{margin-left:0;padding:0 22px}.topbar{height:62px}.topbar>span{font-size:8px}.topbar>div{gap:12px}.hero{gap:28px;padding:36px 0}.hero h1{font-size:39px}.hero p{font-size:12px}.visual-title{font-size:23px}.hero-actions .button{white-space:normal}.section{padding-top:30px}.section-heading{align-items:flex-start}.section-heading>div{max-width:68%}.section-heading h2{font-size:22px}.section-heading .button{white-space:normal;gap:8px;max-width:155px;font-size:10px}.metrics{gap:10px}.metric{padding:16px 12px}.metric strong{font-size:24px}.metric small{font-size:8px}.sim-grid,.api-grid{gap:13px}.panel{padding:17px}.walkthrough{gap:25px;padding:25px}h2{font-size:23px}footer{flex-wrap:wrap}}@media (max-width:580px){main{padding:0 17px}.topbar>span{letter-spacing:.5px}.topbar .pill{padding:5px 7px;font-size:8px}.hero{grid-template-columns:1fr}.hero h1{font-size:44px}.hero-actions{flex-direction:row;align-items:center;gap:22px}.hero-actions .button{padding:12px;font-size:10px}.ledger-visual{margin:8px 8px 12px 0;transform:none}.visual-title{margin-top:22px}.visual-rule{padding:10px 0}.tech-row{margin-top:23px}.section-heading{display:block}.section-heading>div{max-width:100%}.section-heading>.button,.section-heading>.text-link{max-width:none;margin-top:17px}.metrics{grid-template-columns:1fr;gap:9px}.metric{grid-template-columns:1fr auto;align-items:center;padding:14px 16px;display:grid}.metric strong{grid-area:1/2/3;margin:0;font-size:27px}.metric small{grid-area:2/1}.sim-grid,.api-grid{grid-template-columns:1fr}.account-id{margin-top:20px}.account-panel{padding-bottom:10px}.layer-grid{grid-template-columns:1fr 1fr;gap:9px}.layer{padding:15px 12px}.layer h3{margin-top:15px;font-size:12px}.layer p{min-height:73px;font-size:10px}.layer b{font-size:8px}.architecture{grid-template-columns:1fr;margin:23px 0}.architecture>b{transform:rotate(90deg)}.architecture>div{padding:18px}.decisions{grid-template-columns:1fr;gap:12px}.decisions p{margin-top:6px}.walkthrough{grid-template-columns:1fr;margin-top:25px;padding:25px 20px}.walkthrough h2{font-size:27px}.walkthrough-note{border-top:1px solid #bfceb1;border-left:0;padding:18px 0 0}.history .mini-label{font-size:7px}.mini-label{letter-spacing:.6px}.eyebrow{font-size:8px}footer{gap:10px;font-size:8px}.section{margin-bottom:24px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.sidebar,.topbar,.hero-actions,button{display:none}main{margin:0;padding:0}.hero{grid-template-columns:1fr}.ledger-visual{display:none}.section{break-inside:avoid}.walkthrough{background:#fff}}