@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--bg-base:#080c14;--bg-surface:#0e1320;--bg-card:#131927;--bg-card-hover:#1a2236;--border:#1f2e47;--border-light:#243354;--brand:#f59e0b;--brand-dim:#b45309;--brand-glow:#f59e0b26;--success:#10b981;--success-dim:#10b98126;--danger:#ef4444;--danger-dim:#ef444426;--warning:#f59e0b;--warning-dim:#f59e0b1f;--info:#3b82f6;--info-dim:#3b82f626;--muted:#64748b;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#475569;--sidebar-width:240px;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px #0006;--transition:.2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--bg-base);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif;font-size:14px;line-height:1.6}.app-layout{height:100vh;display:flex;overflow:hidden}.main-content{background:var(--bg-base);flex:1;padding:28px 32px;overflow-y:auto}.sidebar{width:var(--sidebar-width);background:var(--bg-surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;display:flex}.sidebar-logo{border-bottom:1px solid var(--border);padding:24px 20px 16px}.logo-text{letter-spacing:-.5px;font-size:20px;font-weight:800}.logo-kleer{color:var(--text-primary)}.logo-fuel{color:var(--brand)}.logo-tag{color:var(--text-muted);letter-spacing:.5px;text-transform:uppercase;margin-top:2px;font-size:10px;font-weight:500}.sidebar-nav{scrollbar-width:thin;scrollbar-color:var(--border) transparent;flex-direction:column;flex:1;gap:2px;padding:8px 12px 12px;display:flex;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.nav-group{flex-direction:column;gap:1px;display:flex}.nav-section-toggle{cursor:pointer;width:100%;color:var(--text-muted);transition:color var(--transition);background:0 0;border:none;justify-content:space-between;align-items:center;margin-top:4px;padding:10px 8px 4px;display:flex}.nav-section-toggle:hover{color:var(--text-secondary)}.nav-section-label{text-transform:uppercase;letter-spacing:1px;font-size:10px;font-weight:700}.nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);text-align:left;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:8px 10px 8px 14px;font-size:13px;font-weight:500;display:flex}.nav-item:hover{background:var(--bg-card-hover);color:var(--text-primary)}.nav-item.active{background:var(--brand-glow);color:var(--brand)}.nav-badge{background:var(--danger);color:#fff;text-align:center;border-radius:100px;min-width:18px;margin-left:auto;padding:1px 6px;font-size:10px;font-weight:700}.sidebar-footer{border-top:1px solid var(--border);flex-shrink:0;padding:12px}.sidebar-user-email{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;margin-bottom:6px;padding:0 4px;font-size:11px;overflow:hidden}:root{--amber:var(--brand)}.page-header{margin-bottom:28px}.page-header h1{color:var(--text-primary);letter-spacing:-.5px;font-size:24px;font-weight:700}.page-header p{color:var(--text-secondary);margin-top:4px;font-size:13.5px}.kpi-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:28px;display:grid}.kpi-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);padding:20px;position:relative;overflow:hidden}.kpi-card:hover{border-color:var(--border-light);transform:translateY(-1px)}.kpi-card:before{content:"";height:2px;position:absolute;top:0;left:0;right:0}.kpi-card.brand:before{background:var(--brand)}.kpi-card.success:before{background:var(--success)}.kpi-card.danger:before{background:var(--danger)}.kpi-card.info:before{background:var(--info)}.kpi-icon{border-radius:var(--radius-sm);justify-content:center;align-items:center;width:38px;height:38px;margin-bottom:12px;display:flex}.kpi-icon.brand{background:var(--brand-glow);color:var(--brand)}.kpi-icon.success{background:var(--success-dim);color:var(--success)}.kpi-icon.danger{background:var(--danger-dim);color:var(--danger)}.kpi-icon.info{background:var(--info-dim);color:var(--info)}.kpi-value{color:var(--text-primary);letter-spacing:-1px;font-size:28px;font-weight:800;line-height:1}.kpi-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-top:4px;font-size:12px;font-weight:500}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.card-title{color:var(--text-primary);align-items:center;gap:8px;margin-bottom:16px;font-size:15px;font-weight:600;display:flex}.tanks-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.tank-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);cursor:default;padding:20px}.tank-card:hover{border-color:var(--border-light);box-shadow:var(--shadow);transform:translateY(-2px)}.tank-card.critical{border-color:#ef444466}.tank-card.warning-tank{border-color:#f59e0b66}.tank-header{justify-content:space-between;align-items:flex-start;margin-bottom:16px;display:flex}.tank-name{color:var(--text-primary);font-size:14px;font-weight:600}.tank-depot{color:var(--text-muted);margin-top:2px;font-size:11px}.fuel-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:100px;padding:3px 8px;font-size:10px;font-weight:600}.fuel-badge.diesel{color:var(--info);background:#3b82f626}.fuel-badge.petrol_95,.fuel-badge.petrol_93{color:var(--success);background:#10b98126}.fuel-badge.adblue{color:#a78bfa;background:#8b5cf626}.fuel-badge.paraffin{color:var(--brand);background:#f59e0b26}.tank-level-bar-wrap{margin:12px 0}.tank-level-labels{color:var(--text-muted);justify-content:space-between;margin-bottom:6px;font-size:11px;display:flex}.tank-level-track{background:var(--bg-base);border:1px solid var(--border);border-radius:100px;height:10px;overflow:hidden}.tank-level-fill{border-radius:100px;height:100%;transition:width 1s cubic-bezier(.4,0,.2,1)}.tank-level-fill.ok{background:linear-gradient(90deg,#10b981,#34d399)}.tank-level-fill.warning{background:linear-gradient(90deg,#f59e0b,#fbbf24)}.tank-level-fill.danger{background:linear-gradient(90deg,#ef4444,#f87171)}.tank-stats{justify-content:space-between;margin-top:12px;font-size:12px;display:flex}.tank-stat-label{color:var(--text-muted)}.tank-stat-value{color:var(--text-primary);font-weight:600}.anomaly-list{flex-direction:column;gap:10px;display:flex}.anomaly-item{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition);align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.anomaly-item:hover{border-color:var(--border-light)}.anomaly-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px;margin-top:6px}.anomaly-dot.critical{background:var(--danger);box-shadow:0 0 8px var(--danger)}.anomaly-dot.high{background:#f97316}.anomaly-dot.medium{background:var(--brand)}.anomaly-dot.low{background:var(--info)}.anomaly-body{flex:1}.anomaly-title{color:var(--text-primary);margin-bottom:4px;font-size:13px;font-weight:600}.anomaly-desc{color:var(--text-secondary);font-size:12px;line-height:1.5}.anomaly-meta{color:var(--text-muted);gap:12px;margin-top:6px;font-size:11px;display:flex}.anomaly-badge{text-transform:uppercase;letter-spacing:.3px;border-radius:100px;padding:2px 8px;font-size:10px;font-weight:600}.anomaly-badge.critical{background:var(--danger-dim);color:var(--danger)}.anomaly-badge.high{color:#f97316;background:#f9731626}.anomaly-badge.medium{background:var(--warning-dim);color:var(--brand)}.anomaly-badge.low{background:var(--info-dim);color:var(--info)}.btn{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);border:none;align-items:center;gap:6px;padding:9px 18px;font-size:13px;font-weight:600;display:inline-flex}.btn-primary{background:var(--brand);color:#000}.btn-primary:hover{background:#fbbf24;transform:translateY(-1px)}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);background:0 0}.btn-ghost:hover{background:var(--bg-card-hover);color:var(--text-primary)}.btn-danger{background:var(--danger-dim);color:var(--danger);border:1px solid #ef44444d}.btn-danger:hover{background:#ef444440}.btn-success{background:var(--success-dim);color:var(--success);border:1px solid #10b9814d}.btn-success:hover{background:#10b98140}.btn:disabled{opacity:.5;cursor:not-allowed}.iot-pulse{background:var(--success);width:8px;height:8px;box-shadow:0 0 10px var(--success);border-radius:50%;animation:1.5s ease-in-out infinite pulse;display:inline-block}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.sim-log{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--success);flex-direction:column-reverse;height:280px;padding:16px;font-family:Courier New,monospace;font-size:12px;display:flex;overflow-y:auto}.sim-log-line{padding:2px 0}.sim-log-line.error{color:var(--danger)}.sim-log-line.warn{color:var(--brand)}.login-page{background:var(--bg-base);justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.login-page:before{content:"";pointer-events:none;background:radial-gradient(circle,#f59e0b0f 0%,#0000 70%);width:600px;height:600px;position:absolute;top:-200px;left:-200px}.login-card{background:var(--bg-card);border:1px solid var(--border);z-index:1;border-radius:16px;width:100%;max-width:400px;padding:40px;position:relative;box-shadow:0 24px 64px #0009}.login-logo{text-align:center;margin-bottom:32px}.login-logo-text{letter-spacing:-1px;font-size:32px;font-weight:800}.login-tagline{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-top:4px;font-size:12px}.form-group{margin-bottom:16px}.form-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;font-weight:600;display:block}.form-input{background:var(--bg-base);border:1px solid var(--border-light);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:all var(--transition);padding:10px 14px;font-family:Inter,sans-serif;font-size:14px}.form-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-glow);outline:none}.form-error{color:var(--danger);margin-top:6px;font-size:12px}.data-table{border-collapse:collapse;width:100%}.data-table th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);padding:10px 12px;font-size:11px;font-weight:600}.data-table td{border-bottom:1px solid var(--border);color:var(--text-secondary);padding:12px;font-size:13px}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background:var(--bg-card-hover)}.dashboard-grid{grid-template-columns:1fr 380px;gap:20px;margin-top:0;display:grid}@media (width<=1100px){.dashboard-grid{grid-template-columns:1fr}}.status-dot{border-radius:50%;width:6px;height:6px;margin-right:6px;display:inline-block}.status-dot.ok{background:var(--success)}.status-dot.warn{background:var(--brand)}.status-dot.danger{background:var(--danger)}.text-brand{color:var(--brand)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-muted{color:var(--text-muted)}.loading-spinner{border:3px solid var(--border);border-top-color:var(--brand);border-radius:50%;width:32px;height:32px;margin:40px auto;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;color:var(--text-muted);padding:60px 20px}.section-divider{background:var(--border);height:1px;margin:24px 0}.two-col{grid-template-columns:1fr 1fr;gap:20px;display:grid}.three-col{grid-template-columns:1fr 1fr 1fr;gap:20px;display:grid}@media (width<=768px){.two-col,.three-col{grid-template-columns:1fr}.main-content{padding:16px}.kpi-grid{grid-template-columns:1fr 1fr}}