:root{--primary: #0891b2;--primary-hover: #0e7490;--secondary: #10b981;--secondary-hover: #059669;--accent: #f59e0b;--dark: #0f172a;--darker: #020617;--card-bg: rgba(255, 255, 255, .03);--card-bg-hover: rgba(255, 255, 255, .05);--border: rgba(255, 255, 255, .1);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--sidebar-width: 260px;--header-height: 64px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--darker);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}.layout{min-height:100vh;display:flex;flex-direction:column}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--dark);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;z-index:100}.header-left{display:flex;align-items:center;gap:1rem}.header-brand{display:flex;align-items:center;gap:.75rem}.logo-icon{color:var(--primary)}.logo{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.mobile-menu-toggle{display:none;background:transparent;border:none;color:var(--text-primary);cursor:pointer;padding:.5rem;border-radius:8px}.mobile-menu-toggle:hover{background:var(--card-bg)}.header-center{flex:1;display:flex;justify-content:center}.handover-alert{display:flex;align-items:center;gap:.5rem;background:var(--error);color:#fff;padding:.5rem 1rem;border-radius:8px;font-size:.875rem;font-weight:500;animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.header-right{display:flex;align-items:center;gap:1rem}.balance{font-weight:600;color:var(--secondary);font-size:1rem}.btn-logout{background:transparent;border:1px solid var(--border);color:var(--text-secondary);padding:.5rem;border-radius:8px;cursor:pointer;display:flex;align-items:center;transition:all .2s}.btn-logout:hover{background:var(--card-bg);color:var(--error);border-color:var(--error)}.mobile-overlay{display:none;position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:#0009;z-index:90;opacity:0;transition:opacity .3s}.mobile-overlay.show{opacity:1}.sidebar{position:fixed;top:var(--header-height);left:0;bottom:0;width:var(--sidebar-width);background:var(--dark);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:95;transition:transform .3s ease}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border)}.partner-info{display:flex;align-items:center;gap:.75rem}.partner-avatar{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:1rem}.partner-details{display:flex;flex-direction:column}.partner-name{font-weight:600;font-size:.875rem;color:var(--text-primary)}.partner-email{font-size:.75rem;color:var(--text-muted)}.sidebar-nav{flex:1;padding:1rem 0;overflow-y:auto}.nav-link{display:flex;align-items:center;gap:.75rem;padding:.875rem 1.5rem;color:var(--text-secondary);text-decoration:none;font-size:.9375rem;transition:all .2s}.nav-link:hover{background:var(--card-bg);color:var(--text-primary)}.nav-link.active{background:#0891b21a;color:var(--primary);border-right:3px solid var(--primary)}.nav-link svg{flex-shrink:0}.sidebar-footer{padding:1.5rem;border-top:1px solid var(--border)}.balance-card{background:linear-gradient(135deg,var(--primary),var(--secondary));padding:1rem;border-radius:12px;text-align:center}.balance-label{display:block;font-size:.75rem;color:#fffc;margin-bottom:.25rem}.balance-amount{font-size:1.5rem;font-weight:700;color:#fff}.main{margin-left:var(--sidebar-width);margin-top:var(--header-height);padding:2rem;min-height:calc(100vh - var(--header-height))}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--darker) 0%,var(--dark) 100%);padding:1rem}.login-card{background:var(--dark);padding:2.5rem;border-radius:16px;width:100%;max-width:400px;border:1px solid var(--border);box-shadow:0 25px 50px -12px #00000080}.login-header{text-align:center;margin-bottom:2rem}.login-logo{color:var(--primary);margin-bottom:1rem}.login-header h1{color:var(--text-primary);font-size:1.75rem;margin-bottom:.25rem}.login-header p{color:var(--text-muted)}.login-footer{text-align:center;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}.login-footer p{font-size:.75rem;color:var(--text-muted)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;font-size:.875rem;color:var(--text-secondary)}.form-group input,.form-group select{width:100%;padding:.875rem 1rem;background:var(--card-bg);border:1px solid var(--border);border-radius:10px;font-size:1rem;color:var(--text-primary);transition:all .2s}.form-group input::placeholder{color:var(--text-muted)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary);background:#0891b20d}.form-group select{cursor:pointer}.form-group select option{background:var(--dark);color:var(--text-primary)}.helper-text{font-size:.85rem;color:var(--text-secondary);margin-top:.25rem;margin-bottom:.5rem}.btn-primary{width:100%;padding:.875rem;background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #0891b266}.btn-primary:disabled{background:var(--text-muted);cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{width:100%;padding:.875rem;background:transparent;color:var(--text-secondary);border:1px solid var(--border);border-radius:10px;font-size:1rem;cursor:pointer;margin-top:.75rem;transition:all .2s}.btn-secondary:hover{background:var(--card-bg);color:var(--text-primary)}.error-message{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:var(--error);padding:.875rem;border-radius:10px;margin-bottom:1.5rem;font-size:.875rem}.dashboard-page h1,.sell-voucher-page h1,.sales-history-page h1,.nodes-page h1,.payouts-page h1{font-size:1.75rem;margin-bottom:1.5rem;color:var(--text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.25rem;margin-bottom:2rem}.stat-card{background:var(--card-bg);padding:1.5rem;border-radius:12px;border:1px solid var(--border);transition:all .2s}.stat-card:hover{background:var(--card-bg-hover);transform:translateY(-2px)}.stat-card h3{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:.5rem}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary);line-height:1.2}.stat-label{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.recommendations{background:#f59e0b1a;border:1px solid rgba(245,158,11,.3);border-radius:12px;padding:1rem;margin-bottom:1.5rem}.recommendations h3{margin-bottom:.75rem;color:var(--accent);font-size:.875rem}.recommendation{padding:.5rem;display:flex;gap:.75rem;align-items:center}.rec-type{background:var(--accent);color:#fff;padding:.25rem .5rem;border-radius:4px;font-size:.7rem;font-weight:600;text-transform:uppercase}.rec-desc{color:var(--text-secondary);font-size:.875rem}.recent-sales h2{font-size:1.25rem;margin-bottom:1rem;color:var(--text-primary)}.no-data{text-align:center;color:var(--text-secondary);padding:2rem;background:var(--card-bg);border-radius:12px}table{width:100%;background:var(--card-bg);border-radius:12px;overflow:hidden;border:1px solid var(--border);border-collapse:collapse}th,td{padding:1rem;text-align:left}th{background:#ffffff05;font-weight:600;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}td{border-top:1px solid var(--border);color:var(--text-secondary)}tr:hover td{background:var(--card-bg-hover)}.voucher-code{font-family:JetBrains Mono,monospace;font-weight:600;color:var(--primary)}.status{display:inline-block;padding:.25rem .625rem;border-radius:6px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.025em}.status.active,.status.completed,.status.online{background:#10b98126;color:var(--secondary)}.status.pending,.status.degraded{background:#f59e0b26;color:var(--accent)}.status.failed,.status.offline{background:#ef444426;color:var(--error)}.packages-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem}.package-card{background:var(--card-bg);padding:1.5rem;border-radius:12px;border:1px solid var(--border);transition:all .2s}.package-card:hover{background:var(--card-bg-hover);transform:translateY(-2px);border-color:var(--primary)}.package-card h3{color:var(--text-primary);margin-bottom:.5rem}.package-description{color:var(--text-muted);font-size:.875rem;margin-bottom:1rem}.package-details{display:flex;gap:1rem;margin-bottom:1rem;font-size:.875rem;color:var(--text-secondary)}.package-price{font-size:1.75rem;font-weight:700;color:var(--secondary);margin-bottom:1rem}.sold-voucher-card{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;padding:2rem;border-radius:16px;text-align:center;max-width:400px;margin:0 auto}.sold-voucher-card h2{margin-bottom:1rem}.sold-voucher-card .voucher-code{font-size:2rem;font-weight:700;font-family:JetBrains Mono,monospace;background:#fff3;padding:1rem;border-radius:12px;margin:1rem 0;color:#fff}.voucher-details p{margin:.5rem 0;opacity:.9}.nodes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.25rem}.node-card{background:var(--card-bg);padding:1.5rem;border-radius:12px;border:1px solid var(--border)}.node-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.node-header h3{color:var(--text-primary)}.status-dot{width:12px;height:12px;border-radius:50%}.status-dot.online{background:var(--secondary);box-shadow:0 0 8px var(--secondary)}.status-dot.offline{background:var(--error)}.status-dot.degraded{background:var(--accent)}.detail-row{display:flex;justify-content:space-between;padding:.625rem 0;border-bottom:1px solid var(--border);font-size:.875rem}.detail-row:last-child{border-bottom:none}.detail-row span:first-child{color:var(--text-muted)}.detail-row span:last-child{color:var(--text-primary)}.loading{display:flex;align-items:center;justify-content:center;padding:4rem;color:var(--text-muted)}.empty-state{text-align:center;padding:4rem;color:var(--text-muted)}.error{text-align:center;padding:4rem;color:var(--error)}.load-more{margin-top:1.5rem;width:auto;padding:.75rem 2rem}@media (max-width: 1024px){.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){:root{--sidebar-width: 280px;--header-height: 56px}.mobile-menu-toggle{display:flex}.mobile-overlay{display:block}.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main{margin-left:0;padding:1rem}.header-brand .logo{display:none}.balance{font-size:.875rem}.stats-grid,.packages-grid,.nodes-grid{grid-template-columns:1fr}table{display:block;overflow-x:auto}th,td{padding:.75rem;font-size:.875rem;white-space:nowrap}.login-card{padding:1.5rem;margin:.5rem}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal{background:var(--dark);padding:2rem;border-radius:16px;width:100%;max-width:400px;border:1px solid var(--border)}.modal h2{margin-bottom:1.5rem;color:var(--text-primary)}.modal-actions{display:flex;gap:1rem;margin-top:1.5rem}.modal-actions button{flex:1}