*{box-sizing:border-box}body{margin:0;background:#f3f6fa;color:#142033;font-family:Arial,sans-serif}.app{width:min(980px,100%);margin:auto;padding:14px}header{display:flex;gap:12px;align-items:center;margin-bottom:18px}header img{width:52px;height:52px}header b{display:block;font-size:22px}header small{color:#687587}.card,.balance{background:#fff;border-radius:18px;padding:20px;margin-bottom:16px;box-shadow:0 8px 28px #14203314}.balance{display:flex;justify-content:space-between;align-items:center}.balance span{display:block;color:#687587}.balance strong{font-size:36px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}input{width:100%;padding:13px;margin:6px 0;border:1px solid #d5dce6;border-radius:10px;font-size:16px}.buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}button{border:0;border-radius:10px;padding:13px 16px;background:#142033;color:#fff;font-weight:700;cursor:pointer}.secondary{background:#e8edf5;color:#142033}.logout{background:#fff0f0;color:#a42c2c}.hidden{display:none}.ok,.error{padding:11px;border-radius:10px;margin-top:9px}.ok{background:#e8f8ed;color:#176b3b}.error{background:#fdeaea;color:#9d2929}.fee{font-size:13px;color:#687587;margin:10px 0}.tx{padding:14px 0;border-bottom:1px solid #edf0f4}.txTop{display:flex;justify-content:space-between}.txAmount{font-size:24px;font-weight:800;margin:6px 0}.txInfo{font-size:13px;color:#687587;line-height:1.5}.pending,.paid{padding:4px 8px;border-radius:8px;font-size:12px;font-weight:700}.pending{background:#fff3cf;color:#876300}.paid{background:#e8f8ed;color:#176b3b}.small{padding:8px 11px;margin-top:8px;font-size:12px}.flash{font-family:monospace;font-size:28px;letter-spacing:3px;background:#eef2f7;padding:18px;border-radius:12px;margin:8px 0;word-break:break-all}.muted{color:#687587}video{width:100%;max-height:320px;object-fit:cover;background:#111;border-radius:14px;margin-top:12px}.flash-result{text-align:center}.flash-result.valid{border:3px solid #1eaf55;background:#eafff0;color:#145c32}.flash-result.invalid{border:3px solid #d43c3c;background:#fff0f0;color:#8e2222}.flash-icon{width:58px;height:58px;line-height:58px;margin:auto;border-radius:50%;font-size:34px;font-weight:bold;background:currentColor;color:white}.valid .flash-icon{color:#1eaf55}.invalid .flash-icon{color:#d43c3c}.verify-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;text-align:left;margin-top:15px;background:#fff;padding:14px;border-radius:12px}.verify-grid span{color:#687587}@media(max-width:700px){.grid,.buttons{grid-template-columns:1fr}.balance strong{font-size:28px}.app{padding:10px}.verify-grid{grid-template-columns:1fr}.flash{font-size:21px}}