:root{--bg-primary:#141417;--bg-secondary:#1a1a1f;--bg-tertiary:#242429;--border-color:#2a2a2f;--text-primary:#fff;--text-secondary:#9999a6;--accent-primary:#0f8;--accent-hover:#00cc6a;--error:#f44;--warning:#fa0}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);overscroll-behavior:none;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#root{flex-direction:column;min-height:100vh;display:flex}.container{width:100%;max-width:420px;margin:0 auto;padding:20px}.screen{flex-direction:column;min-height:100vh;display:flex}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:10;padding:20px;position:sticky;top:0}.header h1{color:var(--text-primary);font-size:24px;font-weight:700}.content{flex:1;padding:20px}.button{background:var(--accent-primary);width:100%;color:var(--bg-primary);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:16px;font-size:16px;font-weight:600;transition:background .2s;display:flex}.button:hover:not(:disabled){background:var(--accent-hover)}.button:disabled{opacity:.5;cursor:not-allowed}.button-secondary{background:var(--bg-tertiary);color:var(--text-primary)}.button-secondary:hover:not(:disabled){background:#2f2f35}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;margin-bottom:16px;padding:20px}.balance-card{text-align:center;padding:32px 20px}.balance-label{color:var(--text-secondary);margin-bottom:8px;font-size:14px}.balance-amount{color:var(--text-primary);margin-bottom:4px;font-size:48px;font-weight:700}.balance-sats{color:var(--text-secondary);font-size:20px}.nav-grid{grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;display:grid}.phase-indicator{background:var(--bg-tertiary);text-align:center;border-radius:8px;margin-bottom:20px;padding:12px}.phase-indicator.syncing{background:linear-gradient(45deg, var(--bg-tertiary), var(--bg-secondary));animation:2s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.loading-spinner{border:3px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;width:24px;height:24px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.qr-container{background:#fff;border-radius:12px;justify-content:center;margin:20px 0;padding:20px;display:flex}.input-group{margin-bottom:20px}.input-label{color:var(--text-secondary);margin-bottom:8px;font-size:14px;display:block}.input{background:var(--bg-tertiary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:8px;padding:12px;font-size:16px}.input:focus{border-color:var(--accent-primary);outline:none}.textarea{background:var(--bg-tertiary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);resize:vertical;border-radius:8px;min-height:100px;padding:12px;font-family:Courier New,monospace;font-size:14px}.error-message{color:var(--error);background:#ff44441a;border:1px solid #ff44444d;border-radius:8px;margin-bottom:20px;padding:12px}.success-message{color:var(--accent-primary);background:#00ff881a;border:1px solid #00ff884d;border-radius:8px;margin-bottom:20px;padding:12px}.tab-bar{background:var(--bg-secondary);border-radius:12px;gap:8px;margin-bottom:20px;padding:4px;display:flex}.tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;padding:12px;font-size:14px;font-weight:500;transition:all .2s}.tab.active{background:var(--bg-tertiary);color:var(--text-primary)}.bottom-nav{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:12px 20px;padding-bottom:env(safe-area-inset-bottom,12px);z-index:10;justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-item{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;flex-direction:column;align-items:center;gap:4px;padding:8px 16px;transition:color .2s;display:flex}.nav-item.active{color:var(--accent-primary)}.nav-item:hover{color:var(--text-primary)}