:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--text-primary: #2c3e50;--text-secondary: #7f8c8d;--card-bg: #ffffff;--card-border: rgba(0, 0, 0, .06);--section-title-color: #1e3a5f;--navy-primary: #1e3a5f;--blue-primary: #022149;--navy-dark: #0f1419;--blue-light: #4a90e2;--blue-gradient: linear-gradient(135deg, #022149 0%, #1a77e1 100%);--orange-primary: #ff6b35;--orange-hover: #e55a2b;--orange-light: #fff3e0;--gray-light: #f8f9fa;--white: #ffffff;--font-serif: "Playfair Display", serif;--font-sans: "Inter", sans-serif;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--border-radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-secondary);line-height:1.6}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{background:var(--blue-gradient);color:#fff;padding:1.25rem;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:.8rem;padding:.45rem .25rem 1.4rem}.brand-logo{width:50px;height:50px;object-fit:cover;border-radius:6px;box-shadow:var(--shadow-md)}.brand-title{font-family:var(--font-serif);font-size:1.22rem;font-weight:800;line-height:1.15}.brand-subtitle{color:#ffffffb8;font-size:.8rem}.nav-list{display:grid;gap:.4rem}.nav-link{display:flex;align-items:center;gap:.75rem;padding:.75rem .85rem;color:#ffffffc2;border-radius:8px;font-weight:600}.nav-link.active,.nav-link:hover{background:#ffffff24;color:#fff;box-shadow:inset 3px 0 0 var(--orange-primary)}.main{min-width:0;display:flex;flex-direction:column}.topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;background:var(--card-bg);border-bottom:1px solid var(--card-border);position:sticky;top:0;z-index:5}.topbar-brand{display:flex;align-items:center;gap:.8rem;min-width:0}.topbar-logo{width:42px;height:42px;border-radius:6px;object-fit:cover;border:1px solid rgba(30,58,95,.12)}.page{padding:1.5rem;display:grid;gap:1.25rem}.page-title{font-family:var(--font-serif);color:var(--section-title-color);font-size:2rem;margin:0}.subtle{color:var(--text-secondary)}.grid{display:grid;gap:1rem}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:8px;box-shadow:var(--shadow-sm);padding:1rem;transition:box-shadow .3s ease,transform .3s ease}.card:hover{box-shadow:var(--shadow-md)}.metric-value{font-size:2rem;font-weight:800;color:var(--section-title-color)}.status-pill{display:inline-flex;align-items:center;gap:.4rem;border-radius:999px;padding:.25rem .65rem;font-size:.78rem;font-weight:700;text-transform:uppercase}.status-online{background:#e8f7ef;color:#0f6f3a}.status-alert,.status-critical{background:#fff3e0;color:#a94405}.status-offline{background:#f2f4f7;color:#667085}.status-maintenance{background:#eaf2ff;color:var(--blue-primary)}.toolbar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:.8rem;text-align:left;border-bottom:1px solid var(--card-border);white-space:nowrap}th{color:var(--text-secondary);font-size:.78rem;text-transform:uppercase}.fleet-card{padding:0;overflow:hidden}.fleet-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.1rem 1.2rem;background:linear-gradient(135deg,#0221490f,#4a90e214);border-bottom:1px solid var(--card-border)}.fleet-count{display:inline-flex;align-items:center;min-height:32px;padding:.35rem .75rem;border-radius:999px;background:#fff;color:var(--blue-primary);border:1px solid rgba(30,58,95,.12);font-weight:700;white-space:nowrap}.fleet-table th{background:#fbfcfe;color:#53657a;letter-spacing:.03em}.fleet-table td{color:#334155;vertical-align:middle}.fleet-row{transition:background-color .2s ease,box-shadow .2s ease}.fleet-row:hover{background:#f7fbff;box-shadow:inset 4px 0 0 var(--blue-light)}.row-alert:hover{background:#fff8f2;box-shadow:inset 4px 0 0 var(--orange-primary)}.row-offline:hover{background:#f8fafc;box-shadow:inset 4px 0 #94a3b8}.device-cell{display:flex;align-items:center;gap:.75rem;min-width:190px}.device-dot{width:10px;height:10px;border-radius:999px;flex:0 0 auto;box-shadow:0 0 0 4px #4a90e21a}.dot-online{background:#12b76a}.dot-alert,.dot-critical{background:var(--orange-primary);box-shadow:0 0 0 4px #ff6b3524}.dot-offline{background:#94a3b8;box-shadow:0 0 0 4px #94a3b824}.dot-maintenance{background:var(--blue-light)}.device-name{color:var(--text-secondary);font-size:.8rem;margin-top:.1rem}.ppm-badge{display:inline-flex;align-items:baseline;justify-content:center;gap:.25rem;min-width:82px;padding:.38rem .65rem;border-radius:8px;font-weight:800}.ppm-badge small{font-size:.68rem;font-weight:700;opacity:.75}.ppm-good{background:#ecfdf3;color:#067647}.ppm-warning{background:var(--orange-light);color:#b54708}.ppm-critical{background:#fef3f2;color:#b42318}.ppm-muted{background:#f2f4f7;color:#667085}.open-device-btn{background:var(--blue-primary)!important;color:#fff!important;border-radius:8px!important;padding:.45rem .85rem!important;font-weight:800!important;text-transform:none!important;box-shadow:0 6px 14px #0221492e!important}.open-device-btn:hover{background:#1a77e1!important;box-shadow:0 8px 18px #1a77e13d!important}.login-page{min-height:100vh;display:grid;place-items:center;background:var(--blue-gradient);padding:1rem}.login-panel{width:min(430px,100%);background:var(--card-bg);border-radius:8px;padding:2rem;box-shadow:var(--shadow-lg)}.login-brand{display:flex;align-items:center;gap:1rem;margin-bottom:1.25rem}.login-logo{width:68px;height:68px;object-fit:cover;border-radius:6px;border:1px solid rgba(30,58,95,.12)}.hamburger-btn{display:none!important}.sidebar-backdrop{display:none}@media (max-width: 980px){.app-shell{grid-template-columns:1fr}.hamburger-btn{display:inline-flex!important;margin-right:.5rem;color:var(--navy-primary)!important}.sidebar-backdrop{display:block;position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:99;opacity:0;pointer-events:none;transition:opacity .3s ease}.sidebar-backdrop.open{opacity:1;pointer-events:auto}.sidebar{position:fixed;top:0;left:-280px;width:260px;height:100vh;z-index:100;transition:left .3s ease-in-out;box-shadow:0 0 20px #0000004d}.sidebar.open{left:0}.nav-list,.grid.cols-4,.grid.cols-2{grid-template-columns:1fr}.fleet-header{align-items:flex-start;flex-direction:column}}@media (max-width: 620px){.topbar{align-items:center;flex-direction:row;justify-content:space-between;gap:.5rem;padding:.75rem 1rem;min-height:64px}.topbar-brand{gap:.5rem}.topbar-logo{width:32px;height:32px}.topbar-brand div strong{font-size:.95rem}.topbar-brand div .subtle{display:none}.login-brand{align-items:flex-start;flex-direction:column}.metric-value{font-size:1.6rem}.page-title{font-size:1.5rem}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin-anim{animation:spin 2s linear infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.15);opacity:.85}}.pulse-anim{animation:pulse 2s ease-in-out infinite}.not-found-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 120px);text-align:center;padding:2rem}.not-found-card{max-width:480px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;box-shadow:var(--shadow-lg);padding:3.5rem 2rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem;transition:transform .3s ease,box-shadow .3s ease}.not-found-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px #0000001f}.not-found-code{font-family:var(--font-serif);font-size:6.5rem;font-weight:900;line-height:1;background:var(--blue-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0;letter-spacing:-.05em;filter:drop-shadow(0 4px 6px rgba(2,33,73,.1))}.not-found-title{font-family:var(--font-serif);color:var(--section-title-color);font-size:1.8rem;margin:0}.not-found-icon{font-size:4.5rem!important;color:var(--orange-primary);margin-bottom:-.5rem}