:root{--theme-50: #f5f4fd;--theme-100: #e8e6fa;--theme-600: #5046e5;--theme-900: #1a174a;--blur: 10px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Funnel Display,sans-serif;background:radial-gradient(ellipse at 50% 50%,var(--theme-100) 0%,var(--theme-50) 100%);color:var(--theme-900);min-height:100vh;overflow-x:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:background .4s,color .4s}.glass{background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.65);border-radius:24px;backdrop-filter:blur(var(--blur)) saturate(1.2);-webkit-backdrop-filter:blur(var(--blur)) saturate(1.2);box-shadow:0 8px 32px #5046e540}header{position:fixed;top:0;left:0;right:0;z-index:10;padding:20px 5vw;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.5rem;color:var(--theme-900)}a{text-decoration:none;color:inherit}.logo svg{width:36px;height:36px}.logo svg path{fill:var(--theme-600)}.header-actions{display:flex;gap:10px;align-items:center}.auth-btn{padding:10px 20px;border-radius:50px;border:none;background:var(--theme-600);color:var(--theme-50);font-size:.9rem;font-weight:600;cursor:pointer;transition:background-color .3s,transform .2s}.auth-btn:hover{background:#6c63ff;transform:translateY(-2px)}.wallet-btn{background:transparent;border:none;cursor:pointer;color:var(--theme-900);padding:5px;display:flex;align-items:center;justify-content:center}.wallet-btn .feather{width:24px;height:24px}.wallet-btn:hover .feather{color:var(--theme-600)}.container{width:90%;max-width:600px;text-align:center}.card{padding:40px;position:relative}h1{font-size:clamp(2rem,6vw,2.5rem);font-weight:700;line-height:1.1;background:linear-gradient(135deg,var(--theme-900) 0%,var(--theme-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem}.subtitle{margin-bottom:2rem;font-size:1.1rem;opacity:.7}#auth-section{margin-bottom:2rem}.auth-status{margin-top:1rem;font-size:.9rem;opacity:.7;word-wrap:break-word}#topup-form[disabled]{opacity:.5;pointer-events:none}.input-group{margin-bottom:1.5rem;text-align:left}label{display:block;margin-bottom:.5rem;font-weight:600;opacity:.8}input[type=url],input[type=number],input[type=text]{width:100%;padding:12px 15px;border-radius:12px;border:1px solid transparent;background-color:#ffffff80;color:var(--theme-900);font-size:1rem;font-family:inherit}input:focus{outline:none;border-color:var(--theme-600)}.submit-btn{width:100%;padding:12px;border-radius:50px;border:none;background:var(--theme-900);color:var(--theme-50);font-size:1.1rem;font-weight:600;cursor:pointer;transition:background-color .3s,transform .2s;display:flex;align-items:center;justify-content:center;gap:8px}.submit-btn:hover:not(:disabled){background:var(--theme-600);transform:translateY(-2px)}.submit-btn:disabled{background:#9ca3af;cursor:not-allowed}.submit-btn .btn-loading,.submit-btn.loading .btn-text{display:none}.submit-btn.loading .btn-loading{display:inline-block}.submit-btn.loading{background:#9ca3af;cursor:not-allowed}@keyframes spin{to{transform:rotate(360deg)}}.feather.spin{animation:spin 1s linear infinite}#loading{margin-top:1.5rem;font-size:1rem;color:var(--theme-600)}#result,#send-result{margin-top:1.5rem;padding:12px 15px;border-radius:8px;text-align:center;font-weight:500}#result.success,#send-result.success{background:rgba(16,185,129,.1);color:#10b981}#result.error,#send-result.error{background:rgba(239,68,68,.1);color:#ef4444}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{position:relative;width:90%;max-width:500px;padding:30px;border-radius:24px}.close-btn{position:absolute;top:10px;right:10px;background:transparent;border:none;font-size:1.5rem;color:var(--theme-900);cursor:pointer}.close-btn:hover{color:var(--theme-600)}h2{font-size:1.8rem;font-weight:700;background:linear-gradient(135deg,var(--theme-900) 0%,var(--theme-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1.5rem}.wallet-item{display:flex;justify-content:space-between;align-items:center;padding:15px 0;flex-wrap:wrap;gap:10px}.wallet-item:not(:last-child){border-bottom:1px solid rgba(0,0,0,.05)}.label{font-weight:600;opacity:.8;flex:0 0 120px}.value-group{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.value{font-family:monospace;font-size:.9rem}.principal-value{word-break:break-all;overflow:hidden;text-overflow:ellipsis;max-width:100%}.copy-btn,.refresh-btn{background:transparent;border:none;cursor:pointer;color:var(--theme-900);padding:5px;display:flex;align-items:center;justify-content:center}.copy-btn:hover,.refresh-btn:hover{color:var(--theme-600)}.feather{width:18px;height:18px}footer{position:fixed;bottom:0;left:0;right:0;padding:20px;display:flex;justify-content:flex-start}.theme-toggle{cursor:pointer;z-index:100;width:44px;height:44px;border-radius:50%;display:flex;justify-content:center;align-items:center;position:relative}.theme-toggle svg{width:22px;height:22px;transition:transform .3s;position:absolute}.theme-toggle:hover svg{transform:scale(1.1)}.theme-toggle .moon{display:none}body.dark-mode{--theme-50: #000000;--theme-100: #1a174a;--theme-600: #5046e5;--theme-900: #ffffff}body.dark-mode .glass{background:rgba(26,23,74,.5);border-color:#ffffff1a;box-shadow:0 8px 32px #00000040}body.dark-mode h1,body.dark-mode h2{background:linear-gradient(135deg,var(--theme-900) 0%,var(--theme-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}body.dark-mode input{background-color:#0003;color:var(--theme-900);border-color:#ffffff1a}body.dark-mode input::placeholder{color:#ffffff80}body.dark-mode .auth-btn{background:var(--theme-600);color:var(--theme-900)}body.dark-mode .auth-btn:hover{background:#6c63ff}body.dark-mode .submit-btn{background:var(--theme-600);color:var(--theme-900)}body.dark-mode .submit-btn:hover:not(:disabled){background:#6c63ff}body.dark-mode .submit-btn.loading{background:#9ca3af}body.dark-mode .wallet-btn .feather,body.dark-mode .copy-btn,body.dark-mode .refresh-btn,body.dark-mode .close-btn{color:var(--theme-900)}body.dark-mode .wallet-btn:hover .feather,body.dark-mode .copy-btn:hover,body.dark-mode .refresh-btn:hover,body.dark-mode .close-btn:hover{color:var(--theme-600)}body.dark-mode .wallet-item:not(:last-child){border-bottom:1px solid rgba(255,255,255,.1)}#stars{display:none}body.dark-mode #stars{display:block;position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1}#stars:before{content:"";position:absolute;width:2px;height:2px;background:white;border-radius:50%;box-shadow:50vw 10vh #fff,10vw 20vh 1px 1px #fff,80vw 30vh 0 1px #fff,30vw 40vh 1px #fff,60vw 50vh 0 1px #fff,90vw 60vh 1px 1px #fff,20vw 70vh #fff,70vw 80vh 1px #fff,40vw 90vh 0 1px #fff,5vw 5vh 1px #fff,95vw 95vh 0 1px #fff,25vw 35vh 1px 1px #fff,75vw 65vh #fff;animation:twinkle 5s infinite}@keyframes twinkle{0%{opacity:0}50%{opacity:1}to{opacity:0}}@media (max-width: 600px){header{padding:14px 5vw}.logo{font-size:1.2rem}.card,.modal-content{padding:20px}h1,h2{font-size:1.8rem}.wallet-item{flex-direction:column;align-items:flex-start}.label{flex:0 0 100%}.value-group{width:100%}}