*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #101727;--surface: #192036;--surface2: #2e3a5c;--border: #384770;--primary: #5254c8;--primary-d: #4547b0;--success: #10b981;--error: #ef4444;--text: #f5f5f5;--muted: #b9bdc5;--radius: 8px;--radius-sm: 4px;font-size:16px}html,body{height:100%;background:var(--bg);color:var(--text);font-family:Open Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}.screen{display:none;position:fixed;top:0;right:0;bottom:0;left:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.screen.active{display:block}.screen-inner{min-height:100%;max-width:480px;margin:0 auto;padding:24px 16px 40px;display:flex;flex-direction:column;gap:16px}.screen-numpad-inner{justify-content:space-between;padding-top:12px;padding-bottom:16px}.screen-header{display:grid;grid-template-columns:40px 1fr 40px;align-items:center;gap:8px;margin-bottom:4px}.screen-header h2{text-align:center;font-size:1.1rem;font-weight:600;color:var(--text)}.logo{text-align:center;padding:32px 0 8px}.bolt{font-size:3rem;display:block;margin-bottom:8px}.logo h1{font-size:2rem;font-weight:600;letter-spacing:-.5px;color:var(--text)}.logo .subtitle{color:var(--muted);margin-top:4px;font-size:.9rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:16px}.card-danger{border-color:#e74c3c4d}.card-danger h3{color:var(--error);font-size:.95rem}.card-danger p{font-size:.85rem;color:var(--muted)}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.8rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}input[type=text],input[type=password],input[type=number],input[type=url],textarea,select{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:1rem;padding:10px 12px;width:100%;outline:none;transition:border-color .15s;-webkit-appearance:none;-moz-appearance:none;appearance:none}input:focus,textarea:focus,select:focus{border-color:var(--primary)}textarea{resize:vertical;font-family:inherit}select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b9bdc5' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}select option{background:var(--surface)}.hint{font-size:.78rem;color:var(--muted);line-height:1.4}.hint code{background:var(--surface2);border-radius:3px;padding:1px 4px;font-family:monospace;font-size:.85em}.radio-group{display:flex;flex-direction:column;gap:8px}.radio-label{display:flex;align-items:center;gap:10px;font-size:.95rem;cursor:pointer;padding:8px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);transition:border-color .15s}.radio-label:has(input:checked){border-color:var(--primary);background:#5d5fef14}.radio-label input[type=radio]{width:auto;accent-color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;font-weight:600;padding:12px 20px;transition:opacity .15s,transform .1s;-webkit-tap-highlight-color:transparent}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:active{transform:none}.btn-full{width:100%}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-d)}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover:not(:disabled){background:#c0392b}.btn-icon{background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--muted);cursor:pointer;font-size:1.1rem;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;transition:color .15s,border-color .15s;-webkit-tap-highlight-color:transparent}.btn-icon:hover{color:var(--text);border-color:var(--text)}.numpad-toolbar{display:flex;justify-content:space-between;align-items:center}.amount-display{text-align:center;padding:12px 0}.amount-fiat{font-size:3.5rem;font-weight:800;letter-spacing:-2px;line-height:1;color:var(--text);display:flex;align-items:flex-start;justify-content:center;gap:4px}.currency-symbol{font-size:2rem;font-weight:600;margin-top:8px;color:var(--muted)}.amount-sats{margin-top:8px;font-size:1rem;color:var(--muted);min-height:1.5em}.numpad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.numpad-btn{aspect-ratio:1.2;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);cursor:pointer;font-size:1.7rem;font-weight:500;transition:background .1s,transform .08s;-webkit-tap-highlight-color:transparent;display:flex;align-items:center;justify-content:center}.numpad-btn:active{transform:scale(.93);background:var(--surface2)}.numpad-btn--muted{color:var(--muted);font-size:1.3rem}.btn-request{font-size:1.15rem;padding:16px;border-radius:var(--radius);letter-spacing:.02em}.invoice-amounts{text-align:center;padding:4px 0}.invoice-fiat{font-size:2.2rem;font-weight:800;letter-spacing:-1px}.invoice-sats{font-size:1rem;color:var(--muted);margin-top:4px}.invoice-memo{font-size:.85rem;color:var(--muted);margin-top:6px;font-style:italic}.qr-container{display:flex;justify-content:center;align-items:center;background:#fff;border-radius:var(--radius);padding:16px;margin:4px auto;max-width:280px;width:100%;cursor:pointer}.qr-container canvas{display:block;max-width:100%;height:auto!important}.invoice-status{text-align:center;padding:8px 0}.status-pending{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--muted);font-size:.95rem}.status-paid,.status-expired{display:flex;flex-direction:column;align-items:center;gap:8px}.status-icon{width:72px;height:72px;border-radius:50%;font-size:2.5rem;display:flex;align-items:center;justify-content:center;font-weight:700}.status-icon--success{background:#2ecc7126;color:var(--success);border:3px solid var(--success)}.status-icon--error{background:#e74c3c26;color:var(--error);border:3px solid var(--error)}.status-paid span,.status-expired span{font-size:1rem;font-weight:600}.status-paid span{color:var(--success);font-size:1.4rem}.status-expired span{color:var(--error);font-size:1.4rem}.status-paid .status-icon--success,.status-expired .status-icon--error{width:96px;height:96px;font-size:3.5rem}.paid-amounts{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:8px}.paid-fiat{font-size:2.4rem;font-weight:800;letter-spacing:-1px;color:var(--text)}.paid-sats{font-size:1rem;color:var(--muted)}.countdown-bar-wrap{display:flex;flex-direction:column;gap:4px}.countdown-bar{height:4px;background:var(--primary);border-radius:2px;transition:width 1s linear,background .5s;width:100%}.countdown-label{font-size:.78rem;color:var(--muted);text-align:right}.txns-list{display:flex;flex-direction:column;gap:10px}.txn-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;display:grid;grid-template-columns:1fr auto;gap:4px 8px;align-items:start}.txn-card.settled{border-left:3px solid var(--success)}.txn-card.expired{border-left:3px solid var(--error)}.txn-card.pending{border-left:3px solid var(--muted)}.txn-amount{font-size:1.1rem;font-weight:700;grid-column:1}.txn-status{grid-column:2;grid-row:1 / 3;align-self:center;font-size:.75rem;font-weight:600;padding:3px 8px;border-radius:20px;white-space:nowrap}.txn-status.settled{background:#2ecc7126;color:var(--success)}.txn-status.expired{background:#e74c3c26;color:var(--error)}.txn-status.pending{background:#7777aa26;color:var(--muted)}.txn-meta{font-size:.8rem;color:var(--muted);grid-column:1}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.9rem;padding:10px 20px;z-index:1000;pointer-events:none;transition:opacity .3s;white-space:nowrap}.toast.hidden{opacity:0}.hidden{display:none!important}.muted{color:var(--muted);font-size:.9rem}.error{color:var(--error);font-size:.85rem;text-align:center}@media (min-height: 700px){.numpad-btn{aspect-ratio:1.4}}@media (min-height: 800px){.amount-fiat{font-size:4rem}.numpad-btn{aspect-ratio:1.6;font-size:1.9rem}}