:root{--bg-main: #07111f;--bg-sidebar: #050a13;--bg-card: #0e1a2b;--bg-card-secondary: #102238;--border: #1e2d44;--primary: #16b8d4;--primary-highlight: #38d9e8;--green: #22c55e;--yellow: #facc15;--red: #ef4444;--text-main: #f8fafc;--text-muted: #94a3b8;--sidebar-width: 240px;--topbar-height: 64px;--radius: 12px;--radius-sm: 8px;--shadow: 0 4px 24px rgba(0, 0, 0, .3);--transition: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow-x:hidden}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--bg-main);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-highlight)}.layout{display:flex;min-height:100vh}.layout-main{flex:1;min-width:0;margin-left:var(--sidebar-width);display:flex;flex-direction:column;min-height:100vh}.layout-content{flex:1;min-width:0;padding:24px 32px 32px;overflow-y:auto}.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:radial-gradient(circle at 18% 0%,rgba(34,211,238,.06),transparent 28%),linear-gradient(180deg,#07101f,#080d18 55%,#070b14);border-right:1px solid rgba(148,163,184,.1);display:flex;flex-direction:column;z-index:100;transition:transform var(--transition)}.sidebar-overlay,.sidebar-close-btn{display:none}.sidebar-brand{display:flex;align-items:center;gap:11px;padding:22px 18px;border-bottom:1px solid rgba(148,163,184,.08)}.sidebar-logo{width:36px;height:36px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-logo svg{width:100%;height:100%;display:block}.sidebar-brand-text{display:flex;flex-direction:column;justify-content:center;gap:5px;min-width:0}.sidebar-brand-name{display:inline-block;width:fit-content;font-size:18px;font-weight:600;line-height:1.25;letter-spacing:-.4px;background:linear-gradient(90deg,#e0f2fe,#bae6fd,#67e8f9,#38bdf8,#818cf8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.sidebar-brand-tagline{font-size:6px;font-weight:500;line-height:1.2;letter-spacing:.85px;color:#94a3b8;white-space:nowrap}.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}.sidebar-link{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:#94a3b8;font-size:14px;font-weight:500;border:1px solid transparent;transition:all .2s ease}.sidebar-link:hover{color:#e2e8f0;background:#ffffff0a}.sidebar-link-active{color:#fff;background:linear-gradient(90deg,#22d3ee1f,#8b5cf614);border:1px solid rgba(34,211,238,.18);box-shadow:inset 3px 0 #22d3ee,0 4px 18px #22d3ee0a}.sidebar-link-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:15px;line-height:1;color:#64748b;background:#ffffff06;transition:all .2s ease}.sidebar-link:hover .sidebar-link-icon{color:#cbd5e1;background:#ffffff0d}.sidebar-link-active .sidebar-link-icon{color:#22d3ee;background:#22d3ee1a;box-shadow:0 0 14px #22d3ee14}.sidebar-logout{margin:12px;padding:10px 14px;background:#ffffff05;border:1px solid rgba(148,163,184,.12);border-radius:10px;color:#64748b;font-size:13px;font-weight:500;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}.sidebar-logout:hover{background:#ef444414;border-color:#ef444438;color:#f87171;transform:translateY(-1px)}.topbar{height:var(--topbar-height);background-color:var(--bg-card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 32px;position:sticky;top:0;z-index:50}.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}.topbar-menu-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-main);font-size:16px;cursor:pointer;transition:border-color var(--transition),color var(--transition)}.topbar-menu-btn:hover{border-color:var(--primary);color:var(--primary-highlight)}.topbar-title{font-size:20px;font-weight:600;color:var(--text-main);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar-right{display:flex;align-items:center;gap:10px}.topbar-username{font-size:14px;font-weight:600;color:var(--text-main)}.topbar-role-badge{background:linear-gradient(135deg,var(--primary),var(--primary-highlight));color:var(--bg-main);font-size:10px;font-weight:700;padding:2px 8px;border-radius:20px;letter-spacing:.5px}.card{background-color:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);min-width:0}.card-title{font-size:16px;font-weight:600;color:var(--text-main);margin-bottom:20px}.dashboard{display:flex;flex-direction:column;gap:24px}.temperature-alert{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:14px;border:1px solid transparent;background:#0f172ac7;box-shadow:0 8px 30px #0000002e;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.temperature-alert-critical{background:linear-gradient(90deg,#ef444421,#7f1d1d0d);border-color:#ef444447}.temperature-alert-warning{background:linear-gradient(90deg,#f59e0b21,#78350f0d);border-color:#f59e0b47}.temperature-alert-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:12px;font-size:20px;font-weight:800}.temperature-alert-critical 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.temperature-alert-label{color:#fbbf24}.temperature-alert-title{margin:0;font-size:15px;font-weight:600;color:var(--text-main)}.temperature-alert-value{flex-shrink:0;font-size:28px;font-weight:700;line-height:1;color:#fff}.temperature-alert-details{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:12px;color:var(--text-muted)}.temperature-alert-dot{opacity:.45}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.metric-card{background-color:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;align-items:center;gap:16px;transition:border-color var(--transition),transform var(--transition)}.metric-card:hover{border-color:var(--primary);transform:translateY(-2px)}.metric-card-featured{padding:28px;border-color:var(--primary)}.metric-card-featured .metric-value{font-size:34px}.metric-card-featured 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rgba(30,45,68,.5)}.data-table tbody tr:hover td{background-color:#16b8d40a}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr.latest-reading-row td{font-size:18px;font-weight:600;padding:16px 14px}.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.4px;text-transform:uppercase}.badge-green{background-color:#22c55e26;color:var(--green);border:1px solid rgba(34,197,94,.3)}.badge-yellow{background-color:#facc1526;color:var(--yellow);border:1px solid rgba(250,204,21,.3)}.badge-red{background-color:#ef444426;color:var(--red);border:1px solid rgba(239,68,68,.3)}.badge-gray{background-color:#94a3b826;color:var(--text-muted);border:1px solid rgba(148,163,184,.3)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;border:none;transition:background var(--transition),opacity var(--transition),transform 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rgba(103,232,249,.55);border-radius:var(--radius-sm);background:#162a4beb;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;line-height:1;cursor:pointer;transition:.2s ease}.add-device-toggle:hover{border-color:#67e8f9d9;background:#1c375ff5;transform:translateY(-1px)}.add-device-toggle:active{transform:scale(.96)}.add-device-form-card{max-width:480px}.add-device-form{max-width:360px;display:flex;flex-direction:column}.add-device-form-actions{display:flex;gap:10px;margin-top:4px}@media(max-width:480px){.add-device-toolbar{justify-content:center}.add-device-form-card,.add-device-form{max-width:100%}.add-device-form-actions{flex-direction:column}.add-device-form-actions .btn{width:100%}}.devices-row-alert{margin-bottom:16px}.device-actions{position:relative;display:inline-block}.device-actions-toggle{width:32px;height:32px;padding:0;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card-secondary);color:var(--text-main);display:inline-flex;align-items:center;justify-content:center;font-size:16px;line-height:1;cursor:pointer;transition:border-color var(--transition),color var(--transition)}.device-actions-toggle:hover:not(:disabled){border-color:var(--primary);color:var(--primary-highlight)}.device-actions-toggle:disabled{opacity:.6;cursor:not-allowed}.device-actions-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:140px;background-color:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:6px;display:flex;flex-direction:column;gap:2px;z-index:20}.device-actions-item{display:block;width:100%;text-align:left;padding:8px 10px;border:none;border-radius:6px;background:transparent;color:var(--text-main);font-size:13px;font-weight:500;cursor:pointer;transition:background var(--transition),color var(--transition)}.device-actions-item:hover{background-color:var(--bg-card-secondary);color:var(--primary-highlight)}.device-actions-item-danger{color:var(--red)}.device-actions-item-danger:hover{background-color:#ef44441f;color:var(--red)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#050a13b8;display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}.modal-card{width:100%;max-height:calc(100vh - 40px);overflow-y:auto}@media(max-width:480px){.device-actions-menu{right:auto;left:0}}