:root{--bg-color: #050505;--card-bg: rgba(20, 20, 20, .6);--accent-color: #00d2ff;--accent-glow: rgba(0, 210, 255, .3);--text-main: #ffffff;--text-dim: #a0a0a0}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,-apple-system,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);background:radial-gradient(circle at 50% 50%,#0a1015,#050505)}body:before{content:"";position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at center,var(--accent-glow) 0%,transparent 50%);animation:pulse 15s infinite alternate;z-index:-1;pointer-events:none}@keyframes pulse{0%{transform:translate(0) scale(1)}to{transform:translate(5%,5%) scale(1.1)}}.login-container{width:100%;max-width:400px;padding:40px;background:var(--card-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:24px;box-shadow:0 25px 50px -12px #00000080;text-align:center}.logo{font-size:32px;font-weight:800;letter-spacing:4px;margin-bottom:8px;background:linear-gradient(to right,#fff,var(--accent-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.subtitle{font-size:14px;color:var(--text-dim);margin-bottom:40px;text-transform:uppercase;letter-spacing:2px}.input-group{margin-bottom:24px;text-align:left}label{display:block;font-size:11px;color:var(--text-dim);margin-bottom:8px;text-transform:uppercase;font-weight:700}input{width:100%;padding:16px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;font-size:16px;transition:all .3s}input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 15px var(--accent-glow)}.btn-login{width:100%;padding:18px;background:var(--accent-color);border:none;border-radius:12px;color:#000;font-size:16px;font-weight:800;cursor:pointer;transition:all .3s;text-transform:uppercase;margin-top:10px}.btn-login:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px var(--accent-glow)}.btn-login:disabled{opacity:.7;cursor:wait}.dashboard-root{display:flex;width:100vw;height:100vh;background-color:var(--bg-color);animation:fadeIn .5s ease-out}.sidebar{width:80px;background:#0a0a0acc;border-right:1px solid rgba(255,255,255,.05);display:flex;flex-direction:column;align-items:center;padding:20px 0;gap:30px}.nav-item{color:var(--text-dim);cursor:pointer;transition:all .3s}.nav-item:hover,.nav-item.active{color:var(--accent-color)}.main-content{flex:1;padding:40px;overflow-y:auto}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px}.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}.device-card{background:var(--card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.05);border-radius:20px;padding:24px;transition:all .3s}.device-card:hover{border-color:var(--accent-color);transform:translateY(-5px)}.status-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;text-transform:uppercase}.dot{width:8px;height:8px;border-radius:50%}.dot-online{background-color:#0f8;box-shadow:0 0 10px #0f8}.dot-offline{background-color:#ff4b2b}.log-panel{width:400px;background:#000;border-left:1px solid rgba(255,255,255,.05);padding:20px;display:flex;flex-direction:column;flex-shrink:0}.terminal{flex:1;font-size:13px;color:#0f8;overflow-y:auto;line-height:1.5}#root{min-height:100vh;width:100%}.auth-layout{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}body{display:block;overflow:auto}.header h1{font-size:1.75rem;font-weight:800}.header-subtitle{color:var(--text-dim);font-size:.9rem;margin-top:4px}.footer-text{margin-top:24px;font-size:11px;color:#666;line-height:1.6}.form-error{color:#ff4b2b;font-size:13px;margin-bottom:12px;text-align:left}.input-password-wrap{position:relative}.input-password-wrap input{padding-right:48px}.input-password-toggle{position:absolute;top:50%;right:14px;transform:translateY(-50%);background:none;border:none;color:var(--text-dim);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;transition:color .2s}.input-password-toggle:hover{color:var(--accent-color)}.btn-demo{width:100%;margin-top:12px;padding:12px;background:transparent;border:1px dashed rgba(255,255,255,.2);border-radius:12px;color:var(--text-dim);cursor:pointer;font-size:12px}.nav-item-btn{margin-top:auto;background:none;border:none;padding:0}.fleet-stats{display:grid;grid-template-columns:repeat(3,minmax(120px,1fr));gap:16px;margin-bottom:28px;max-width:480px}.fleet-stat{background:var(--card-bg);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:16px}.fleet-stat-value{font-size:1.75rem;font-weight:800}.fleet-stat-value.accent{color:var(--accent-color)}.fleet-stat-value.green{color:#0f8}.fleet-stat-value.red{color:#ff4b2b}.fleet-stat-label{font-size:11px;color:var(--text-dim);text-transform:uppercase;margin-top:4px}.device-card-top{display:flex;justify-content:space-between;margin-bottom:20px}.device-fw{color:var(--text-dim);font-size:12px}.device-name{font-size:14px;color:var(--text-dim);margin-bottom:12px}.device-meta{list-style:none;font-size:12px;color:var(--text-dim);line-height:1.6;margin-bottom:16px}.device-meta li+li{margin-top:2px}.device-card--offline{opacity:.6}.device-actions{display:flex;gap:10px;flex-wrap:wrap}.btn-sm{padding:10px 14px;font-size:12px;font-weight:800;border-radius:10px;border:none;cursor:pointer;text-transform:uppercase}.btn-accent{background:var(--accent-color);color:#000}.btn-ghost{background:#ffffff1a;color:#fff}.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.1);color:var(--text-dim)}.log-panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.log-panel-header h4{font-size:12px;text-transform:uppercase;color:var(--text-dim)}.mqtt-live{font-size:10px;color:#666}.mqtt-live--on{color:#0f8}.log-device-filter-label{display:block;font-size:10px;text-transform:uppercase;color:var(--text-dim);margin-bottom:10px}.log-device-filter-label .log-device-filter{margin-top:4px;margin-bottom:0}.log-device-filter{width:100%;margin-bottom:10px;padding:6px 8px;font-size:11px;background:#00000059;border:1px solid rgba(255,255,255,.08);color:var(--text-dim);border-radius:4px}.log-connection-hint{font-size:10px;color:#fc0;margin:0 0 8px}.log-time{color:#666}.terminal{font-family:JetBrains Mono,Courier New,monospace}.loading-screen{min-height:40vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-dim)}.loading-spinner{width:40px;height:40px;border:3px solid rgba(0,210,255,.2);border-top-color:var(--accent-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.banner{padding:12px 16px;border-radius:10px;margin-bottom:20px;font-size:13px}.banner--warn{background:#ffcc001a;border:1px solid rgba(255,204,0,.3);color:#fc0}.placeholder-panel{background:var(--card-bg);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:24px;color:var(--text-dim);line-height:1.8}.placeholder-panel code{color:var(--accent-color);font-size:12px}.ota-panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}.ota-panels h3{font-size:14px;color:var(--accent-color);margin-bottom:12px;text-transform:uppercase;letter-spacing:1px}.ota-json{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-dim);overflow-x:auto;white-space:pre-wrap;word-break:break-word}.fleet-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:24px}.fleet-filters{display:flex;gap:8px}.fleet-filter-btn{padding:8px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.1);background:transparent;color:var(--text-dim);font-size:12px;font-weight:700;cursor:pointer;text-transform:uppercase}.fleet-filter-btn.active{background:#00d2ff26;border-color:#00d2ff66;color:var(--accent-color)}.fleet-search{flex:1;min-width:200px;display:flex;align-items:center;gap:10px;padding:10px 14px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:12px;color:var(--text-dim)}.fleet-search input{flex:1;border:none;background:transparent;padding:0;font-size:14px;color:var(--text-main)}.fleet-search input:focus{outline:none;box-shadow:none}.fleet-count{font-size:12px;color:var(--text-dim)}.ota-tabs{display:flex;gap:8px;margin-bottom:16px}.ota-tab{padding:10px 18px;border-radius:10px;border:1px solid rgba(255,255,255,.1);background:transparent;color:var(--text-dim);font-weight:700;font-size:12px;cursor:pointer;text-transform:uppercase}.ota-tab.active{background:#00d2ff1f;color:var(--accent-color);border-color:#00d2ff59}.ota-table{width:100%;border-collapse:collapse;font-size:13px}.ota-table th,.ota-table td{text-align:left;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.06)}.ota-table th{color:var(--text-dim);font-size:11px;text-transform:uppercase}.ota-table code{color:var(--accent-color);font-size:12px}.ota-url{font-size:11px;word-break:break-all;color:var(--text-dim)}.ota-protected-note{font-size:12px;color:#fc0;margin:0 0 12px;line-height:1.4}.ota-hash{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-dim)}.ota-version{margin-bottom:16px;color:var(--text-dim)}.ota-dl{display:grid;gap:12px}.ota-dl-row{display:grid;grid-template-columns:140px 1fr;gap:12px}.ota-dl-row dt{color:var(--text-dim);font-size:12px;text-transform:uppercase}.ota-dl-row dd{font-size:13px;word-break:break-all}.users-table-wrap{overflow-x:auto}.users-actions{display:flex;gap:8px;flex-wrap:wrap}.users-device-name{color:var(--text-dim);font-size:12px}.empty-state{color:var(--text-dim);padding:40px;text-align:center}a.nav-item{text-decoration:none;display:flex}