:root{--bg: #0b1220;--card: #131c2e;--card2: #1a2540;--text: #eef2f9;--muted: #8b97ad;--accent: #4da2ff;--green: #2ecc8f;--red: #ff6b6b;--radius: 16px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:430px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;padding:max(12px,env(safe-area-inset-top)) 16px calc(84px + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 2px 16px}.topbar .brand{font-weight:700;letter-spacing:.2px}.topbar .mode{font-size:11px;color:var(--muted)}.balance-card{background:linear-gradient(160deg,var(--card2),var(--card));border-radius:var(--radius);padding:28px 20px;text-align:center}.balance-card .label{color:var(--muted);font-size:13px;margin-bottom:6px}.balance-card .amount{font-size:44px;font-weight:700;letter-spacing:-1px}.balance-card .amount small{font-size:20px;color:var(--muted);font-weight:600}.actions{display:flex;gap:12px;margin:16px 0}.actions .btn{flex:1}.btn{display:block;width:100%;background:var(--accent);color:#fff;border:0;border-radius:14px;font-size:17px;font-weight:600;padding:15px 16px;cursor:pointer;text-align:center;text-decoration:none}.btn.secondary{background:var(--card2);color:var(--text)}.btn:disabled{opacity:.45;cursor:default}.btn.danger{background:var(--red)}.card{background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:12px}.card h3{margin:0 0 10px;font-size:14px;color:var(--muted);font-weight:600}.field{margin-bottom:14px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.field input{width:100%;background:var(--card2);color:var(--text);border:1px solid #26324e;border-radius:12px;font-size:16px;padding:14px 12px;outline:none}.field input:focus{border-color:var(--accent)}.activity-item{display:flex;justify-content:space-between;align-items:center;padding:12px 2px;border-bottom:1px solid #1d2942}.activity-item:last-child{border-bottom:0}.activity-item .who{font-size:13px;color:var(--muted);font-family:ui-monospace,monospace}.activity-item .amt{font-weight:700}.activity-item .amt.in{color:var(--green)}.activity-item .amt.out{color:var(--text)}.addr{font-family:ui-monospace,monospace;font-size:13px;word-break:break-all;background:var(--card2);padding:12px;border-radius:12px;cursor:pointer}.qr-wrap{display:flex;justify-content:center;padding:12px 0}.qr-wrap img{border-radius:12px;background:#fff;padding:10px;width:240px;height:240px}.free-tag{color:var(--green);font-weight:700}.muted{color:var(--muted);font-size:13px}.center{text-align:center}.error{color:var(--red);font-size:14px;margin-top:10px;word-break:break-word}.success{color:var(--green);font-size:14px;margin-top:10px;word-break:break-all}.tabbar{position:fixed;bottom:0;left:0;right:0;background:#0b1220eb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid #1d2942;display:flex;justify-content:space-around;padding:10px 0 calc(10px + env(safe-area-inset-bottom))}.tabbar a{color:var(--muted);text-decoration:none;font-size:12px;text-align:center;width:84px}.tabbar a.active{color:var(--accent)}.tabbar .ico{font-size:20px;display:block;margin-bottom:2px}.signin{display:flex;flex-direction:column;justify-content:center;min-height:70vh;text-align:center;gap:14px}.signin h1{font-size:28px;margin:0}.review-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #1d2942;font-size:15px}.review-row:last-child{border-bottom:0}.review-row .k{color:var(--muted)}