:root{--brand: #f9683d;--brand-dark: #d44e24;--brand-soft: #fff3ef;--brand-mid: #fee7e0;--green: #00b388;--green-soft: #e6faf5;--amber: #f59e0b;--amber-soft: #fef3c7;--blue: #3b82f6;--blue-soft: #eff6ff;--red: #ef4444;--red-soft: #fef2f2;--text: #0f172a;--muted: #64748b;--light: #f8fafc;--border: #e9ecef;--white: #ffffff;--bg: #fdfaf8;--radius-sm: 10px;--radius: 16px;--radius-lg: 24px;--shadow: 0 2px 16px rgba(249, 104, 61, .07);--shadow-lg: 0 18px 50px rgba(249, 104, 61, .14)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:Sora,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}input{font-family:inherit}.mono{font-family:DM Mono,ui-monospace,monospace}.shell{min-height:100dvh;display:flex;flex-direction:column;align-items:center;padding:28px 18px calc(28px + env(safe-area-inset-bottom));background:radial-gradient(900px 480px at 50% -10%,#fff3ee 0%,transparent 60%),var(--bg)}.stack{width:100%;max-width:460px;display:flex;flex-direction:column;gap:18px}.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.03em;color:var(--brand);padding:2px}.brand img{height:30px;display:grid;place-items:center;font-size:16px;font-weight:800}.brand span{color:var(--text)}.brand .tag{margin-left:auto;font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--green);background:var(--green-soft);padding:5px 11px;border-radius:999px;display:inline-flex;align-items:center;gap:6px}.brand .tag:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green)}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}.card-head{padding:22px 22px 18px;background:linear-gradient(135deg,#fff7f4,#fff3ee 60%,#ffeae0);border-bottom:1px solid var(--brand-mid);display:flex;align-items:center;gap:14px}.merchant-avatar{width:46px;height:46px;border-radius:14px;background:var(--white);border:1px solid var(--brand-mid);color:var(--brand);font-weight:800;font-size:18px;display:grid;place-items:center;flex-shrink:0}.merchant-meta .eyebrow{font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:2px}.merchant-meta h1{font-size:18px;font-weight:700;letter-spacing:-.02em}.merchant-meta .ref{font-size:12px;color:var(--muted);margin-top:1px}.card-body{padding:22px;display:flex;flex-direction:column;gap:20px}.total{text-align:center;padding:6px 0 2px}.total .label{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.total .value{font-size:44px;font-weight:800;letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}.total .value .cur{font-size:22px;font-weight:700;color:var(--muted);margin-right:6px;vertical-align:6px}.field-label{font-size:12px;font-weight:700;color:var(--text);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}.field-label .hint{font-size:11px;font-weight:500;color:var(--muted)}.chips{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.chip{border:1px solid var(--border);background:var(--white);border-radius:var(--radius-sm);padding:11px 6px;font-size:13px;font-weight:600;color:var(--text);transition:all .15s ease;text-align:center;font-variant-numeric:tabular-nums}.chip:hover{border-color:var(--brand);color:var(--brand)}.chip.active{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);box-shadow:inset 0 0 0 1px var(--brand)}.chip .sub{display:block;font-size:10px;font-weight:500;color:var(--muted);margin-top:2px}.chip.active .sub{color:var(--brand-dark)}.amount-input{position:relative;display:flex;align-items:center;border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:0 16px;transition:border-color .15s ease,box-shadow .15s ease;background:var(--white)}.amount-input:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.amount-input .prefix{font-size:20px;font-weight:700;color:var(--muted);margin-right:8px}.amount-input input{border:none;outline:none;font-size:22px;font-weight:700;padding:14px 0;width:100%;background:transparent;color:var(--text);letter-spacing:-.01em;font-variant-numeric:tabular-nums}.amount-input input::placeholder{color:#cbd5e1}.breakdown{border-top:1px dashed var(--border);padding-top:14px;display:flex;flex-direction:column;gap:7px}.breakdown-row{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}.breakdown-row.total-row{color:var(--text);font-weight:700;font-size:14px;padding-top:7px;border-top:1px solid var(--border)}.info-box{border-radius:var(--radius-sm);padding:13px 16px;font-size:13px;line-height:1.55}.info-box.amber{background:var(--amber-soft);border-left:3px solid var(--amber);color:#78350f}.info-box.red{background:var(--red-soft);border-left:3px solid var(--red);color:#7f1d1d}.info-box.blue{background:var(--blue-soft);border-left:3px solid var(--blue);color:#1e3a5f}.info-box.green{background:var(--green-soft);border-left:3px solid var(--green);color:#064e3b}.info-box strong{font-weight:700}.pay-list{display:flex;flex-direction:column;gap:10px}.pay-btn{display:flex;align-items:center;gap:14px;width:100%;border:1px solid var(--border);background:var(--white);border-radius:var(--radius);padding:14px 16px;text-align:left;transition:all .15s ease}.pay-btn:hover:not(:disabled){border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-1px)}.pay-btn:active:not(:disabled){transform:translateY(0)}.pay-btn:disabled{opacity:.5;cursor:not-allowed}.pay-btn .logo{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;flex-shrink:0}.pay-btn>span:not(.logo):not(.chev):not(.placeholder-tag){display:flex;flex-direction:column;min-width:0}.pay-btn .name{display:block;font-size:14px;font-weight:700}.pay-btn .desc{display:block;font-size:11.5px;color:var(--muted);margin-top:2px}.pay-btn .chev{margin-left:auto;color:var(--muted);flex-shrink:0}.pay-btn .placeholder-tag{margin-left:auto;font-size:9px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:var(--light);border:1px solid var(--border);padding:3px 7px;border-radius:6px;flex-shrink:0}.footnote{text-align:center;font-size:11.5px;color:var(--muted);line-height:1.6}.footnote .lock{display:inline-flex;align-items:center;gap:5px;font-weight:600;color:var(--text)}.demo-strip{border:1px dashed var(--amber);background:#fffbf0;border-radius:var(--radius-sm);padding:12px 14px}.demo-strip .demo-label{font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);margin-bottom:8px}.demo-strip .demo-row{display:flex;gap:8px}.demo-link{flex:1;text-align:center;font-size:12px;font-weight:600;padding:8px;border-radius:8px;text-decoration:none;border:1px solid var(--border);background:var(--white);color:var(--text)}.demo-link.ok{color:var(--green);border-color:#a7f3d0}.demo-link.bad{color:var(--red);border-color:#fecaca}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:flex-end;justify-content:center;z-index:50;padding:16px;animation:fade .2s ease}.sheet{background:var(--white);border-radius:var(--radius-lg);width:100%;max-width:460px;padding:26px 22px calc(22px + env(safe-area-inset-bottom));box-shadow:var(--shadow-lg);animation:rise .28s cubic-bezier(.16,1,.3,1)}.sheet .spinner{width:44px;height:44px;border-radius:50%;border:3px solid var(--brand-mid);border-top-color:var(--brand);margin:4px auto 16px;animation:spin .8s linear infinite}.sheet h2{text-align:center;font-size:18px;font-weight:700;margin-bottom:6px}.sheet p{text-align:center;font-size:13px;color:var(--muted);margin-bottom:18px}.sheet .sheet-actions{display:flex;gap:10px}.btn{flex:1;border-radius:var(--radius-sm);padding:13px;font-size:14px;font-weight:700;border:1px solid var(--border);background:var(--white);color:var(--text);transition:all .15s ease;text-decoration:none;text-align:center;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn:hover{border-color:var(--brand);color:var(--brand)}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}.confirm-shell{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px 18px calc(28px + env(safe-area-inset-bottom))}.confirm-card{width:100%;max-width:440px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:36px 26px 26px;text-align:center}.status-ring{width:88px;height:88px;margin:0 auto 22px;border-radius:50%;display:grid;place-items:center;position:relative}.status-ring.ok{background:var(--green-soft)}.status-ring.bad{background:var(--red-soft)}.status-ring.pend{background:var(--amber-soft)}.status-ring svg{width:44px;height:44px}.status-ring .draw{fill:none;stroke-width:5;stroke-linecap:round;stroke-linejoin:round}.status-ring.ok .draw{stroke:var(--green)}.status-ring.bad .draw{stroke:var(--red)}.status-ring.pend .draw{stroke:var(--amber)}.confirm-card .eyebrow{font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:8px}.confirm-card.ok .eyebrow{color:var(--green)}.confirm-card.bad .eyebrow{color:var(--red)}.confirm-card.pend .eyebrow{color:var(--amber)}.confirm-card h1{font-size:26px;font-weight:800;letter-spacing:-.03em;margin-bottom:8px}.confirm-card .sub{font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:24px}.confirm-amount{font-size:38px;font-weight:800;letter-spacing:-.03em;margin-bottom:24px;font-variant-numeric:tabular-nums}.confirm-amount .cur{font-size:20px;color:var(--muted);margin-right:5px;vertical-align:5px}.detail-list{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:24px;text-align:left}.detail-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 16px;font-size:13px;border-bottom:1px solid #f5f5f7}.detail-row:last-child{border-bottom:none}.detail-row .k{color:var(--muted);flex-shrink:0}.detail-row .v{font-weight:600;text-align:right;word-break:break-all}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade{0%{opacity:0}}@keyframes rise{0%{transform:translateY(28px);opacity:0}}@keyframes ringpop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.08)}to{transform:scale(1);opacity:1}}@keyframes drawline{0%{stroke-dashoffset:80}to{stroke-dashoffset:0}}.status-ring{animation:ringpop .45s cubic-bezier(.16,1,.3,1)}.status-ring .draw{stroke-dasharray:80;stroke-dashoffset:80;animation:drawline .5s .25s ease forwards}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}.status-ring .draw{stroke-dashoffset:0}}.scan-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:24px 22px;text-align:center}.scan-head h3{font-size:17px;font-weight:700;letter-spacing:-.01em;margin-bottom:4px}.scan-head p{font-size:12.5px;color:var(--muted);line-height:1.55;max-width:300px;margin:0 auto 18px}.qr-frame{width:240px;height:240px;margin:0 auto 18px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);display:grid;place-items:center;padding:14px;box-shadow:inset 0 0 0 4px #fff,0 2px 10px #0f172a0d}.qr-skeleton{width:208px;height:208px;border-radius:8px;background:linear-gradient(110deg,#f1f5f9 30%,#e2e8f0,#f1f5f9 70%);background-size:200% 100%;animation:shimmer 1.2s linear infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.scan-amount{font-size:30px;font-weight:800;letter-spacing:-.03em;margin-bottom:12px;font-variant-numeric:tabular-nums}.scan-amount .cur{font-size:17px;color:var(--muted);margin-right:4px;vertical-align:4px}.scan-status{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border:1px solid var(--brand-mid);padding:8px 16px;border-radius:999px}.dot-pulse{width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 #f9683d80;animation:pulse 1.4s ease-out infinite}@keyframes pulse{0%{box-shadow:0 0 #f9683d73}70%{box-shadow:0 0 0 9px #f9683d00}to{box-shadow:0 0 #f9683d00}}.scan-ref{margin-top:12px;font-size:11px;color:var(--muted)}.method-switch{width:100%;background:none;border:none;font-size:12.5px;color:var(--muted);padding:4px;text-align:center}.method-switch strong{color:var(--brand);font-weight:600}.method-switch:hover strong{color:var(--brand-dark);text-decoration:underline}@media (prefers-reduced-motion: reduce){.dot-pulse,.qr-skeleton{animation:none}}