:root{--bg: #07080c;--card: #101219;--card-2: #171a24;--line: #232733;--text: #eef1f7;--muted: #8b93a7;--accent: #6c8cff;--accent-2: #9d7bff;--ok: #3ddc97;--warn: #ffb454;--err: #ff6b6b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:560px;margin:0 auto;padding:16px 16px calc(24px + env(safe-area-inset-bottom))}.head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.brand{font-size:17px;font-weight:700;letter-spacing:.2px}.balance{background:linear-gradient(135deg,var(--accent),var(--accent-2));border-radius:999px;padding:6px 14px;font-weight:600;font-size:14px}.tabs{display:flex;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:16px}.tab{flex:1;appearance:none;border:0;background:transparent;color:var(--muted);font:inherit;font-weight:600;padding:9px 8px;border-radius:9px;cursor:pointer}.tab[aria-selected=true]{background:var(--card-2);color:var(--text)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:12px}.card h2{margin:0 0 4px;font-size:16px}.muted{color:var(--muted);font-size:13px;margin:0}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}.badge.on{color:var(--ok);border-color:#3ddc9759}.badge.off{color:var(--warn);border-color:#ffb45459}.btn{appearance:none;border:0;border-radius:11px;padding:12px 16px;font:inherit;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-2));cursor:pointer;width:100%}.btn.sec{background:var(--card-2);border:1px solid var(--line)}.btn:disabled{opacity:.55;cursor:default}.tariff{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.tariff:last-of-type{border-bottom:0}.tariff .buy{width:auto;padding:9px 16px;white-space:nowrap}.price{font-weight:700}.sub{display:block;width:100%;margin:12px 0;padding:11px 12px;background:var(--bg);border:1px solid var(--line);border-radius:10px;color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;word-break:break-all}.qr{display:block;margin:0 auto 12px;border-radius:10px;background:#fff;padding:8px}.err{color:var(--err);font-size:13px;margin:8px 0 0}.ok{color:var(--ok);font-size:13px;margin:8px 0 0}.ledger{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}.ledger:last-child{border-bottom:0}.delta.plus{color:var(--ok);font-weight:600}.delta.minus{color:var(--muted);font-weight:600}.center{text-align:center;padding:40px 16px;color:var(--muted)}