:root{--bg: #f3f5fa;--surface: #ffffff;--surface-2: #f7f8fc;--border: #e2e6ef;--text: #15203b;--muted: #687390;--brand: #1f4fd8;--brand-dark: #173aa3;--brand-soft: #e8eefe;--navy: #0d1b3e;--credit: #0b8a4f;--credit-soft: #e5f6ed;--debit: #d1342b;--debit-soft: #fdecea;--warn: #9a6400;--warn-soft: #fff5dc;--radius: 14px;--shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;background:var(--bg)}h1,h2,h3{margin:0 0 8px;line-height:1.25}h1{font-size:1.65rem}h2{font-size:1.2rem}h3{font-size:1rem;margin-top:24px}a{color:var(--brand)}code{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:1px 6px;font-size:.85em}.muted{color:var(--muted)}.small{font-size:.875rem}.center{text-align:center}.mono{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;letter-spacing:.02em}.upper{text-transform:uppercase}.narrow{max-width:540px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.row.center{justify-content:center;margin-top:12px}.grow{flex:1}.grid-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}.grid-2.tight{gap:0 14px}.shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:12px;padding:22px 16px;background:var(--navy);color:#c9d3f0}.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1;margin-top:12px}.nav-link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:inherit;text-decoration:none;font-weight:500}.nav-link:hover{background:#ffffff12;color:#fff}.nav-link.active{background:var(--brand);color:#fff}.sidebar-user{display:flex;align-items:center;gap:10px;padding:12px;border-radius:12px;background:#ffffff0f}.sidebar-user strong,.sidebar-user small{display:block;color:#fff}.sidebar-user small{color:#9aa7cc;font-size:.78rem}.sidebar .btn.ghost{color:#c9d3f0;border-color:#ffffff26}.sidebar .btn.ghost:hover{background:#ffffff12}.content{padding:32px 40px 56px;max-width:1120px;width:100%}.topbar,.bottom-nav{display:none}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.3rem;letter-spacing:-.01em;color:var(--text)}.brand.light{color:#fff}.brand-mark{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#5b8cff,var(--brand))}.page-header{margin-bottom:24px}.page-header p{margin:0;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:4px}.card-head a{font-weight:600;text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s}.btn.primary{background:var(--brand);color:#fff}.btn.primary:hover:not(:disabled){background:var(--brand-dark)}.btn.ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn.ghost:hover:not(:disabled){background:var(--surface-2)}.btn.block{width:100%}.btn.sm{padding:7px 12px;font-size:.875rem}.btn:disabled{opacity:.55;cursor:not-allowed}.icon-btn{display:inline-grid;place-items:center;padding:6px;border:none;border-radius:8px;background:#ffffff24;color:inherit;cursor:pointer;vertical-align:middle}.icon-btn:hover{background:#ffffff3d}.icon-btn.soft{background:var(--brand-soft);color:var(--brand);padding:4px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:6px}.field .field-label{margin-bottom:0}.field-error{color:var(--debit);font-size:.8rem}.field-hint{color:var(--muted);font-size:.8rem}input,select,textarea{width:100%;padding:11px 12px;font:inherit;color:inherit;background:#fff;border:1px solid var(--border);border-radius:10px;outline:none;transition:border-color .15s,box-shadow .15s}textarea{resize:vertical;font-size:.85rem}input:focus,select:focus,textarea:focus,.amount-input:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.field.has-error input,.field.has-error select,.field.has-error .amount-input{border-color:var(--debit)}.amount-input{display:flex;align-items:center;padding:0 14px;background:#fff;border:1px solid var(--border);border-radius:10px}.amount-input span{font-size:1.5rem;color:var(--muted)}.amount-input input{border:none;box-shadow:none!important;padding:10px 8px;font-size:1.6rem;font-weight:700}.pin-input{max-width:200px;font-size:1.3rem;letter-spacing:.5em;text-align:center}.alert{margin-bottom:16px;padding:11px 14px;border-radius:10px;font-size:.9rem}.alert.error{background:var(--debit-soft);color:#a1251d}.alert.info{background:var(--brand-soft);color:var(--brand-dark)}.alert.success{background:var(--credit-soft);color:var(--credit)}.spinner{width:28px;height:28px;margin:24px auto;border:3px solid var(--brand-soft);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite}.row .spinner{width:18px;height:18px;margin:0;border-width:2px}.center-page{min-height:100vh;display:grid;place-items:center;padding:16px}.avatar{width:42px;height:42px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:700}.tabs{display:inline-flex;flex-wrap:wrap;gap:4px;margin-bottom:20px;padding:4px;background:var(--surface);border:1px solid var(--border);border-radius:12px}.tab{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:none;border-radius:9px;background:none;font:inherit;font-weight:600;color:var(--muted);cursor:pointer}.tab.active{background:var(--brand-soft);color:var(--brand-dark)}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:-4px 0 20px}.chip{padding:6px 12px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);font:inherit;font-size:.85rem;font-weight:600;cursor:pointer}.chip:hover{border-color:var(--brand);color:var(--brand)}.options{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}.option{display:flex;flex-direction:column;gap:2px;padding:12px;border:1px solid var(--border);border-radius:12px;cursor:pointer}.option input{display:none}.option small{color:var(--muted);font-size:.78rem}.option.selected{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 1px var(--brand)}.balance-card{position:relative;overflow:hidden;padding:28px;border-radius:20px;color:#fff;background:linear-gradient(135deg,#2457e6 0%,#142d77 60%,var(--navy) 100%);box-shadow:0 12px 32px #142d7740}.balance-card:after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:#ffffff12}.balance-top{display:flex;justify-content:space-between;align-items:center;font-weight:600;opacity:.9}.status-pill{padding:2px 10px;border-radius:999px;background:#ffffff29;font-size:.72rem;letter-spacing:.06em}.balance-label{display:block;margin-top:18px;opacity:.75}.balance-amount{display:flex;align-items:center;gap:12px;margin:2px 0 22px;font-size:2.5rem;font-weight:800;letter-spacing:-.02em}.balance-meta{position:relative;z-index:1;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.balance-meta small{display:block;opacity:.7;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em}.balance-meta span{font-weight:600}.balance-meta .icon-btn{padding:4px;margin-left:4px}.actions{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.action{display:flex;flex-direction:column;gap:4px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);color:inherit;text-decoration:none;transition:transform .15s,border-color .15s}.action:hover{transform:translateY(-2px);border-color:var(--brand)}.action small{color:var(--muted)}.action-icon{width:42px;height:42px;margin-bottom:8px;display:grid;place-items:center;border-radius:12px;background:var(--brand-soft);color:var(--brand)}.txn-list{margin:0;padding:0;list-style:none}.txn{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--border)}.txn:last-child{border-bottom:none}.txn-icon{width:40px;height:40px;flex-shrink:0;display:grid;place-items:center;border-radius:50%}.txn-icon.in{background:var(--credit-soft);color:var(--credit)}.txn-icon.out{background:var(--debit-soft);color:var(--debit)}.txn-main{flex:1;min-width:0;display:flex;flex-direction:column}.txn-main small{overflow:hidden;font-size:.8rem;text-overflow:ellipsis;white-space:nowrap}.txn-amt{display:flex;flex-direction:column;align-items:flex-end;white-space:nowrap}.txn-amt small{font-size:.75rem}.credit{color:var(--credit)}.debit{color:var(--debit)}.empty{padding:28px 0;text-align:center;color:var(--muted)}.steps{display:flex;gap:8px;margin:0 0 20px;padding:0;list-style:none}.steps li{flex:1;display:flex;align-items:center;gap:8px;padding-bottom:8px;border-bottom:3px solid var(--border);color:var(--muted);font-size:.875rem;font-weight:600}.steps li span{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--border);font-size:.75rem}.steps li.current,.steps li.done{border-color:var(--brand);color:var(--text)}.steps li.current span,.steps li.done span{background:var(--brand);color:#fff}.payee{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:12px}.payee>div:nth-child(2){flex:1;min-width:0}.payee strong,.payee small{display:block}.payee small{color:var(--muted);font-size:.82rem}.verified{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:999px;background:var(--credit-soft);color:var(--credit);font-size:.75rem;font-weight:700}.fixed-amount{display:flex;flex-direction:column;align-items:center;gap:2px;margin-bottom:18px;padding:18px;border-radius:12px;background:var(--brand-soft)}.fixed-amount strong{font-size:2rem}.receipt{text-align:center}.receipt-check{width:64px;height:64px;margin:0 auto 14px;display:grid;place-items:center;border-radius:50%;background:var(--credit);color:#fff;animation:pop .35s ease-out}.receipt-amount{margin:0 0 20px;font-size:2.2rem;font-weight:800}.details{margin:12px 0 20px;text-align:left;border-top:1px dashed var(--border)}.details>div{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px 0;border-bottom:1px dashed var(--border)}.details dt{color:var(--muted)}.details dd{margin:0;font-weight:600;text-align:right;overflow-wrap:anywhere}.qr-card{display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center}.qr-img{width:240px;max-width:100%;aspect-ratio:1;margin-bottom:10px;padding:8px;background:#fff;border:1px solid var(--border);border-radius:14px;image-rendering:pixelated}.request-amount{margin:8px 0 0;font-size:1.8rem;font-weight:800}.status{display:flex;align-items:center;gap:10px;width:100%;margin:12px 0 4px;padding:12px 14px;border-radius:10px;font-size:.9rem;text-align:left}.status small{display:block}.status.pending{background:var(--warn-soft);color:var(--warn)}.status.paid{background:var(--credit-soft);color:var(--credit)}.status.expired{background:var(--debit-soft);color:#a1251d}.pulse{width:10px;height:10px;flex-shrink:0;border-radius:50%;background:currentColor;animation:pulse 1.2s ease-in-out infinite}.howto{margin:0;padding-left:20px;color:var(--muted);font-size:.875rem}.howto li{margin-bottom:6px}.scanner-region{width:100%;overflow:hidden;border-radius:12px;background:#000}.scanner-region:empty{background:none}.scanner-region video{display:block;width:100%!important}.dropzone{display:flex;flex-direction:column;align-items:center;gap:6px;padding:40px 20px;border:2px dashed var(--border);border-radius:14px;color:var(--muted);text-align:center;cursor:pointer}.dropzone strong{color:var(--text)}.dropzone .btn{margin-top:10px}.dropzone:not(.static):hover{border-color:var(--brand);color:var(--brand)}.dropzone.static{cursor:default}.scanner+.alert,.dropzone+.alert{margin-top:16px}.toast{position:fixed;top:20px;right:20px;z-index:50;display:flex;align-items:center;gap:12px;padding:14px 18px;background:#fff;border-left:4px solid var(--credit);border-radius:10px;box-shadow:0 10px 30px #1018282e;color:var(--credit);animation:slide-in .3s ease-out}.toast small{display:block;color:var(--muted)}.auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.auth-hero{display:flex;flex-direction:column;justify-content:space-between;gap:32px;padding:48px;color:#dbe3fb;background:radial-gradient(circle at 20% 20%,#2457e6 0%,transparent 55%),linear-gradient(160deg,#142d77,var(--navy))}.auth-hero h1{color:#fff;font-size:2.6rem}.auth-hero p{max-width:440px;font-size:1.05rem}.auth-hero ul{margin:28px 0 0;padding:0;list-style:none}.auth-hero li{display:flex;align-items:center;gap:12px;margin-bottom:14px}.auth-hero li span{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#ffffff1a;color:#fff}.auth-main{display:grid;place-items:center;padding:40px 16px}.auth-card{width:100%;max-width:440px}.auth-card>h2{font-size:1.5rem;margin-bottom:2px}.auth-card form{margin-top:20px}.auth-mobile-brand{display:none;margin-bottom:28px}.demo-box{display:flex;flex-direction:column;gap:8px;margin-top:24px;padding:16px;background:var(--warn-soft);border-radius:12px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:24px}.stat{display:flex;flex-direction:column;padding:16px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.stat small{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.stat strong{font-size:1.3rem}.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.7rem;font-weight:700;letter-spacing:.04em}.badge.created{background:var(--warn-soft);color:var(--warn)}.badge.paid{background:var(--credit-soft);color:var(--credit)}.badge.refunded{background:var(--brand-soft);color:var(--brand-dark)}.badge.expired{background:var(--surface-2);color:var(--muted)}.chip.selected{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}.order{padding:12px 0;border-bottom:1px solid var(--border)}.order:last-child{border-bottom:none}.order-row{display:flex;align-items:center;gap:14px;margin-bottom:6px}.refund-form{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;padding:12px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;font-size:.875rem}.refund-form .pin-input{max-width:130px;padding:6px 10px;font-size:1rem}.feature-list{margin:0 0 20px;padding:0;list-style:none}.feature-list li{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;color:var(--muted)}.feature-list svg{flex-shrink:0;margin-top:2px;color:var(--brand)}.key-reveal{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;padding:16px 18px;background:var(--warn-soft);border:1px solid #f3d48a;border-radius:var(--radius)}.key-reveal strong,.key-reveal small{display:flex;align-items:center;gap:6px}.key-reveal code{display:inline-block;margin-top:6px;font-size:.95rem;overflow-wrap:anywhere}.key-box{margin-bottom:10px;padding:10px 12px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px}.code{margin:0 0 14px;padding:12px 14px;overflow-x:auto;background:var(--navy);color:#dbe3fb;border-radius:10px;font:.78rem/1.55 ui-monospace,Cascadia Mono,Consolas,monospace}.api-table{width:100%;margin:8px 0 12px;border-collapse:collapse;font-size:.82rem}.api-table td{padding:7px 6px;border-bottom:1px solid var(--border);vertical-align:top}.method{padding:1px 6px;border-radius:5px;font-size:.7rem;font-weight:700}.method.get{background:var(--credit-soft);color:var(--credit)}.method.post{background:var(--brand-soft);color:var(--brand-dark)}.topbar .icon-btn{color:#fff}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pop{0%{transform:scale(.4);opacity:0}}@keyframes pulse{50%{opacity:.3}}@keyframes slide-in{0%{transform:translateY(-12px);opacity:0}}@media (max-width: 860px){.shell{grid-template-columns:minmax(0,1fr)}.sidebar{display:none}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--navy);color:#fff}.content{padding:20px 16px 96px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;justify-content:space-around;padding:6px 4px calc(6px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--border)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 8px;color:var(--muted);font-size:.7rem;font-weight:600;text-decoration:none}.bottom-nav a.active{color:var(--brand)}.grid-2{grid-template-columns:minmax(0,1fr)}.actions,.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.balance-amount{font-size:2rem}.options,.auth-page{grid-template-columns:minmax(0,1fr)}.auth-hero{display:none}.auth-mobile-brand{display:block}.card{padding:18px}.toast{left:16px;right:16px;top:70px}}