:root{--bg:#101116;--panel:#1a1b23;--line:#2e303b;--text:#f3f2f8;--muted:#92949f;--accent:#c5b5ff;--green:#b2dfbf;--font:Arial,Helvetica,sans-serif;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button:disabled{opacity:.66}::selection{background:#c5b5ff;color:#101116}.lab-shell{max-width:1200px;margin:auto;padding:0 44px}.topbar{height:112px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line)}.brand,.topbar{align-items:center}.brand{font-size:25px;font-weight:700;letter-spacing:-1px;display:inline-flex;gap:10px}.brand-icon{width:30px;height:34px;background:var(--accent);color:var(--bg);display:grid;place-items:center;border-radius:8px 8px 8px 2px;font-size:29px;font-weight:800;line-height:1}.brand-dot{color:var(--accent)}.lab-badge{display:flex;align-items:center;gap:9px;letter-spacing:1.4px;font-size:10px;font-weight:600;color:#adaeba}.lab-badge>span:first-child{height:5px;width:5px;background:var(--green);border-radius:50%}.badge-version{border:1px solid var(--line);padding:5px 7px;margin-left:5px;color:var(--accent)}.home-main{padding-top:65px}.eyebrow{color:var(--accent);font-size:10px;letter-spacing:1.8px;font-weight:600;display:flex;align-items:center;gap:12px}.tiny-line{display:block;height:1px;width:22px;background:var(--accent)}.intro h1{font-size:clamp(38px,5vw,61px);font-weight:500;letter-spacing:-2.7px;line-height:1.12;margin:24px 0}.intro h1>span{color:#92939f}.intro>p{font-size:15px;line-height:1.7;max-width:515px;color:var(--muted);margin:0}.milestone-note{margin-top:28px;font-size:12px;display:flex;gap:9px;align-items:center;color:#bfc1cd}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}.note-phase{font-size:9px;color:#757784;margin-left:10px;letter-spacing:1px}.demo-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;margin:46px 0 65px}.invoice-panel{border:1px solid #3d3b4a;background:linear-gradient(135deg,#20212b,#1a1b23);border-radius:18px;padding:28px 30px}.panel-heading{display:flex;align-items:center;gap:15px;padding-bottom:27px;border-bottom:1px solid var(--line)}.step-number{font-size:11px;color:var(--accent);background:#302d40;display:grid;place-items:center;border-radius:8px;width:35px;height:35px}.panel-heading h2{font-size:17px;font-weight:500;margin:0 0 5px;letter-spacing:-.4px}.panel-heading p{margin:0;color:var(--muted);font-size:12px}.pill{font-size:8px;letter-spacing:1px;color:var(--accent);border:1px solid #4c435f;border-radius:20px;padding:6px 8px;margin-left:auto}.invoice-form{padding-top:25px}.invoice-form label{display:block;font-size:12px;color:#bfc0cc;margin-bottom:10px}.amount-input{display:flex;align-items:center;background:#13141b;border:1px solid #3b3b4a;border-radius:10px;padding:16px 18px;gap:10px}.amount-input>span:first-child{font-size:26px;color:#747583}.amount-input input{width:100%;min-width:0;color:var(--text);font-size:29px;letter-spacing:-1px;background:transparent;border:0;outline:none}.currency-tag{font-size:10px!important;letter-spacing:1px;color:#b3b2c2;border-left:1px solid var(--line);padding-left:14px}.field-hint{margin:10px 0 24px}.field-hint,.optional{font-size:10px;color:#787a88}.optional{float:right}.order-input{background:#15161d;width:100%;border:1px solid #353743;padding:14px 16px;border-radius:9px;font-size:12px;color:var(--text)}.order-input::placeholder{color:#646673}.form-summary{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin:25px 0 20px}.form-summary>span:last-child{color:#c8c9d4;display:flex;align-items:center;gap:7px}.small-dot{width:4px;height:4px;border-radius:50%;display:inline-block;background:var(--accent)}.primary-button{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--accent);color:#191524;width:100%;padding:17px 19px;border:0;border-radius:9px;font-size:13px;font-weight:600;transition:background .15s}.primary-button:hover:not(:disabled){background:#d8cdff}.primary-button span{font-size:19px;line-height:1}.form-footer{text-align:center;color:#808290;font-size:10px;margin:13px 0 0}.form-error{color:#e5a7ac;font-size:12px;line-height:1.5;margin:12px 0}.flow-panel{border:1px solid var(--line);border-radius:18px;padding:32px 30px;background:#15161d}.flow-panel h2{font-size:25px;letter-spacing:-.8px;font-weight:500;margin:17px 0 10px}.flow-description{font-size:12px;line-height:1.7;color:var(--muted);max-width:280px;margin:0 0 35px}.flow-step{display:flex;align-items:center;gap:14px}.flow-symbol{display:grid;place-items:center;border:1px solid #40424e;border-radius:11px;width:42px;height:42px;background:#20212a;color:var(--accent);font-size:20px;flex-shrink:0}.flow-step h3{font-size:13px;font-weight:500;margin:0 0 6px}.flow-step p{font-size:11px;color:#828492;margin:0}.flow-state{margin-left:auto;color:var(--green);font-size:8px;letter-spacing:1px}.flow-connector{height:24px;border-left:1px dashed #3d3f4b;margin:6px 0 6px 20px}.upcoming{opacity:.55}.upcoming .flow-state{color:var(--muted)}.flow-footnote{padding-top:20px;margin-top:33px;line-height:1.6;color:#767986}.flow-footnote,.lab-footer{border-top:1px solid var(--line);font-size:10px}.lab-footer{display:flex;justify-content:space-between;padding:22px 0 32px;color:#717380}.lab-footer>span:last-child{font-size:8px;letter-spacing:1px}.checkout-shell{min-height:100svh;display:flex;flex-direction:column;max-width:1100px;margin:auto;padding:0 40px}.checkout-topbar{height:100px;display:flex;align-items:center;justify-content:space-between}.checkout-main{flex:1 1;display:flex;justify-content:center;align-items:center;padding:30px 0 45px}.checkout-card{width:100%;max-width:420px;background:linear-gradient(160deg,#22232e,#191a22);border:1px solid #3d3b4c;border-radius:22px;padding:34px 32px 24px;text-align:center;box-shadow:0 30px 90px #0003}.merchant-avatar{margin:0 auto 17px;width:52px;height:52px;border-radius:15px;background:#3b324f;color:#daceff;display:grid;place-items:center;font-size:24px}.paying-label{font-size:9px;letter-spacing:1.5px;color:var(--muted);margin:0 0 9px}.checkout-card h1{font-size:19px;letter-spacing:-.4px;font-weight:500;margin:0 0 25px}.checkout-amount{font-size:60px;font-weight:500;letter-spacing:-3px;line-height:1.1}.checkout-amount>span{font-size:35px;color:#9d9baa;vertical-align:10px;margin-right:3px}.checkout-currency{font-size:11px;color:var(--muted);margin:10px 0 22px}.checkout-status{display:inline-flex;align-items:center;gap:8px;color:var(--green);background:#27322c;border:1px solid #3a4940;border-radius:20px;font-size:10px;padding:8px 12px}.checkout-status.cancelled,.checkout-status.expired,.checkout-status.failed{color:#e5afb3;background:#37272d;border-color:#553841}.checkout-status.cancelled .status-dot,.checkout-status.expired .status-dot,.checkout-status.failed .status-dot{background:#e5afb3}.checkout-divider{border-top:1px solid var(--line);margin:27px 0 22px}.checkout-detail{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin:15px 0}.checkout-detail code,.checkout-detail>span:last-child{color:#d0cfda;font-size:11px}.checkout-detail code{font-family:monospace}.pay-button{margin-top:27px;text-align:left}.checkout-note{color:#9798a6;line-height:1.65;font-size:11px;max-width:280px;margin:15px auto 22px}.checkout-lab-note{display:flex;align-items:center;justify-content:center;gap:7px;border-top:1px solid var(--line);padding-top:19px;color:#797c89;font-size:9px}.checkout-footer{text-align:center;font-size:10px;color:#737684;padding-bottom:26px}.checkout-footer span{padding:0 7px}.message-page{max-width:560px;margin:14vh auto;padding:24px}.message-page h1{font-size:38px;letter-spacing:-1.5px;font-weight:500;line-height:1.2}.message-page p{color:var(--muted);font-size:14px;line-height:1.7}.message-page .primary-button{max-width:220px;margin-top:25px}.text-link{font-size:13px;color:var(--accent);display:inline-block;margin-top:15px}@media(max-width:720px){.lab-shell{padding:0 22px}.topbar{height:82px}.brand{font-size:23px}.badge-version{display:none}.lab-badge{font-size:8px;letter-spacing:1px}.home-main{padding-top:40px}.intro h1{font-size:40px;letter-spacing:-1.8px}.intro>p{font-size:13px}.note-phase{display:none}.demo-grid{grid-template-columns:1fr;margin-top:30px;gap:18px;margin-bottom:40px}.flow-panel,.invoice-panel{padding:24px}.lab-footer{gap:15px;flex-wrap:wrap;font-size:9px}.checkout-shell{padding:0 20px}.checkout-topbar{height:80px}.checkout-main{padding:15px 0 30px;align-items:flex-start}.checkout-card{padding:29px 24px 22px;border-radius:18px}.checkout-amount{font-size:56px}.message-page h1{font-size:32px}}.session-transfer{margin-top:26px;padding-top:24px;border-top:1px solid var(--line)}.session-transfer h2{font-size:16px;font-weight:500;margin:0 0 9px}.session-transfer>p{font-size:11px;line-height:1.65;color:var(--muted)}.session-qr{display:block;width:220px;height:220px;max-width:100%;margin:18px auto 22px;border-radius:12px;background:white}.session-url{overflow-wrap:anywhere;font-family:monospace;font-size:9px!important}.lab-setup-note{line-height:1.7;color:#ad9fcc;border:1px solid #443b55;background:#282234;margin:15px 0}.lab-setup-note,.wallet-summary{font-size:10px;padding:12px;border-radius:9px}.wallet-summary{display:flex;align-items:center;gap:8px;background:#253129;color:var(--green)}.wallet-summary code{margin-left:auto}.session-countdown{margin:22px 0;padding-bottom:20px;border-bottom:1px solid var(--line)}.wallet-panel{margin-top:20px}.wallet-account{display:flex;flex-direction:column;gap:9px;padding:17px;margin-bottom:20px;border:1px solid var(--line);border-radius:11px;background:#161720}.wallet-account span{color:var(--muted);font-size:10px}.wallet-account code{font-size:16px;color:#d5caff}.wallet-verified{color:var(--green);background:#27322c;border:1px solid #3a4940;border-radius:10px;padding:14px 8px;margin-bottom:20px;font-size:12px}.secondary-button{border:1px solid var(--line);color:#b9b8c9;background:transparent;border-radius:9px;font-size:11px;padding:12px;width:100%;margin-top:12px}.secondary-button:hover:not(:disabled){background:#292a36}.session-card>.text-link{margin:24px 0;font-size:11px}