:root{--bg: #0f172a;--card: #1e293b;--card2: #273449;--text: #e2e8f0;--muted: #94a3b8;--brand: #7c3aed;--brand2: #a78bfa;--green: #22c55e;--red: #ef4444}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.center{min-height:100vh;display:grid;place-items:center;padding:16px}.card{background:var(--card);border-radius:16px;padding:24px}.auth-card{width:100%;max-width:380px;display:flex;flex-direction:column;gap:6px}.brand{color:var(--brand2);font-weight:800;margin:0}.brand.small{font-size:15px}.muted{color:var(--muted)}.tiny{font-size:12px}label{font-size:13px;margin-top:8px;color:var(--muted)}input{background:var(--card2);border:1px solid #334155;border-radius:8px;padding:10px 12px;color:var(--text);font-size:15px}input:focus{outline:2px solid var(--brand)}.btn{margin-top:14px;background:var(--brand);color:#fff;border:none;border-radius:8px;padding:12px;font-size:15px;font-weight:600;cursor:pointer}.btn:disabled{opacity:.6}.link{background:none;border:none;color:var(--brand2);cursor:pointer;font-size:13px;margin-top:8px}.error{background:#7f1d1d;color:#fecaca;padding:8px 12px;border-radius:8px;font-size:13px;margin-top:8px}.app{max-width:640px;margin:0 auto;padding:12px}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 4px}.topbar-actions{display:flex;align-items:center;gap:10px}.dot{width:9px;height:9px;border-radius:50%;display:inline-block}.dot.on{background:var(--green);box-shadow:0 0 8px var(--green)}.dot.off{background:var(--red)}.stats{display:flex;gap:12px;margin:8px 0 16px}.stat{flex:1;background:var(--card);border-radius:12px;padding:14px;text-align:center}.stat-value{font-size:22px;font-weight:800}.stat-label{font-size:12px;color:var(--muted)}.feed{display:flex;flex-direction:column;gap:8px}.empty{text-align:center;color:var(--muted);padding:40px 20px;background:var(--card);border-radius:12px;font-size:14px}.payment{display:flex;justify-content:space-between;align-items:center;background:var(--card);border-radius:12px;padding:14px 16px;border-left:3px solid transparent}.payment.flash{animation:flash 1.2s ease-out}@keyframes flash{0%{border-left-color:var(--green);background:#14532d}to{border-left-color:transparent;background:var(--card)}}.payment-name{font-weight:600}.payment-time{font-size:12px;color:var(--muted)}.payment-amount{font-size:18px;font-weight:800;color:var(--green)}.modal-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:center;padding:16px}.modal{background:var(--card);border-radius:16px;padding:22px;width:100%;max-width:400px}.modal h2{margin:0 0 4px}.devices{display:flex;flex-direction:column;gap:8px;margin:14px 0}.device{display:flex;justify-content:space-between;align-items:center;background:var(--card2);border-radius:10px;padding:12px}.device-name{font-weight:600;font-size:14px}.code{font-family:ui-monospace,monospace;font-size:22px;font-weight:800;letter-spacing:3px;color:var(--brand2)}.badge{background:var(--green);color:#052e16;font-weight:700;font-size:11px;padding:3px 8px;border-radius:999px}.badge-emp{background:var(--brand2);color:#1e1b4b}.badge-off{background:var(--red);color:#fff}.admin-link{border:1px solid var(--brand2);border-radius:6px;padding:3px 8px}.admin-search{width:100%;background:var(--card2);border:1px solid #334155;border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px;margin-bottom:12px}.table-wrap{overflow-x:auto;background:var(--card);border-radius:12px}.admin-table{width:100%;border-collapse:collapse;font-size:13px;min-width:640px}.admin-table th{text-align:left;padding:12px;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #334155}.admin-table td{padding:12px;border-bottom:1px solid #24324a;vertical-align:top}.admin-table td.strong{font-weight:700}.admin-table td.num{text-align:center;font-variant-numeric:tabular-nums}.admin-table tr:last-child td{border-bottom:none}.empty-cell{text-align:center;color:var(--muted);padding:24px}.device-right{display:flex;align-items:center;gap:8px}.del-btn{background:transparent;border:1px solid #475569;color:var(--muted);border-radius:6px;width:26px;height:26px;font-size:12px;cursor:pointer;line-height:1}.del-btn:hover{border-color:var(--red);color:var(--red)}.alert-offline{display:flex;gap:12px;align-items:flex-start;background:#7f1d1d;color:#fee2e2;border:1px solid var(--red);border-radius:12px;padding:14px 16px;margin:8px 0 4px;animation:pulse-red 2s ease-in-out infinite}.alert-offline .tiny{color:#fecaca;margin-top:2px}.alert-icon{font-size:20px;line-height:1}@keyframes pulse-red{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 6px #ef444400}}.section-label{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-top:16px}.invite-link{font-size:12px;color:var(--brand2);word-break:break-all;margin-right:8px}.mini-btn{background:var(--brand);color:#fff;border:none;border-radius:6px;padding:6px 10px;font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap}