:root{--bg: #070d1a;--bg-soft: #0e1628;--card: #121c33;--card-border: #1e2b47;--text: #e6edf7;--muted: #8b9bb8;--primary: #0ea5e9;--primary-strong: #38bdf8;--primary-dim: rgba(14, 165, 233, .14);--ok: #10b981;--off: #f43f5e;--warning: #f59e0b;--radius: 14px;--shadow: 0 10px 30px rgba(0, 0, 0, .35);font-family:Segoe UI,system-ui,-apple-system,Roboto,sans-serif;line-height:1.5;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:radial-gradient(1200px 600px at 80% -10%,rgba(14,165,233,.12),transparent 60%),radial-gradient(900px 500px at 0% 0%,rgba(16,185,129,.07),transparent 55%),var(--bg);color:var(--text)}a{color:var(--primary-strong);text-decoration:none}a:hover{text-decoration:underline}code{background:#ffffff12;padding:2px 6px;border-radius:6px;font-size:.85em;word-break:break-all}.app-shell{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;gap:24px;padding:14px 28px;background:#0a1120cc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--card-border);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:baseline;gap:10px}.brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--ok));box-shadow:0 4px 14px #0ea5e959}.brand-mark.large{width:52px;height:52px;border-radius:14px;margin:0 auto 10px}.brand-name{font-size:1.25rem;font-weight:700;letter-spacing:.4px}.brand-tag{color:var(--muted);font-size:.85rem}.main-nav{display:flex;gap:6px;flex:1}.nav-link{color:var(--muted);padding:8px 14px;border-radius:10px;font-weight:500;transition:background .15s,color .15s}.nav-link:hover{color:var(--text);background:#ffffff0d;text-decoration:none}.nav-link.active{color:var(--text);background:var(--primary-dim)}.session{display:flex;align-items:center;gap:10px}.family-id{color:var(--muted);font-size:.8rem;letter-spacing:.5px}.content{flex:1;width:100%;max-width:1100px;margin:0 auto;padding:28px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:10px 18px;font-size:.95rem;font-weight:600;cursor:pointer;transition:transform .1s,background .15s,opacity .15s;text-decoration:none}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:linear-gradient(135deg,var(--primary),#0b87c2);color:#fff}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-strong),var(--primary))}.btn-ghost{background:transparent;border-color:var(--card-border);color:var(--text)}.btn-ghost:hover{background:#ffffff0d}.btn-sm{padding:6px 12px;font-size:.85rem}.field{display:flex;flex-direction:column;gap:6px;font-size:.9rem}.field span{color:var(--muted);font-weight:500}.field.row{flex-direction:row;align-items:center;justify-content:space-between;gap:16px}.field.grow{flex:1}.field input,.field select{background:#0a1226;border:1px solid var(--card-border);border-radius:10px;padding:10px 14px;color:var(--text);font-size:.95rem;outline:none;transition:border .15s}.field input:focus,.field select:focus{border-color:var(--primary)}.field input::placeholder{color:#4e5f7d}.alert{border-radius:10px;padding:10px 14px;font-size:.9rem;margin:10px 0}.alert.error{background:#f43f5e1f;border:1px solid rgba(244,63,94,.4);color:#fda4af}.alert.success{background:#10b9811f;border:1px solid rgba(16,185,129,.4);color:#6ee7b7}.back-link{display:inline-block;margin-bottom:8px;color:var(--muted);font-size:.9rem}.back-link:hover{color:var(--text)}.card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:26px}.stat-card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:18px 20px;display:flex;flex-direction:column;gap:4px}.stat-label{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.6px}.stat-value{font-size:2rem;font-weight:700;letter-spacing:-.5px}.stat-value.small{font-size:1.2rem}.stat-hint{color:var(--muted);font-size:.8rem}.section{margin-top:24px}.section h2{font-size:1.1rem;margin:0 0 12px}.empty-state{text-align:center;padding:48px 20px;color:var(--muted);border:1px dashed var(--card-border);border-radius:var(--radius);margin-top:20px}.empty-state .device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.empty-state .device-card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:16px 18px;color:var(--text);display:flex;flex-direction:column;gap:8px;transition:border .15s,transform .15s}.empty-state .device-card:hover{border-color:var(--primary);transform:translateY(-2px);text-decoration:none}.empty-state .dot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:8px}.empty-state .dot.ok{background:var(--ok);box-shadow:0 0 8px var(--ok)}.empty-state .dot.off{background:var(--off)}.empty-state .badge{display:inline-block;background:var(--primary-dim);color:var(--primary-strong);border:1px solid rgba(14,165,233,.3);border-radius:999px;padding:3px 10px;font-size:.78rem;font-weight:600;align-self:flex-start}.empty-state .device-list{display:flex;flex-direction:column;gap:10px;margin-top:16px}.empty-state .device-row{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:14px 18px}.empty-state .device-row>div:first-child{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.empty-state .device-row-actions{display:flex;align-items:center;gap:12px}.empty-state .form-card{margin-bottom:20px}.empty-state .inline-form{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}.empty-state .auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(800px 500px at 70% 20%,rgba(14,165,233,.15),transparent 60%),var(--bg)}.empty-state .auth-card{background:var(--card);border:1px solid var(--card-border);border-radius:20px;box-shadow:var(--shadow);width:100%;max-width:400px;padding:32px}.empty-state .auth-brand{text-align:center;margin-bottom:22px}.empty-state .auth-brand h1{margin:0;font-size:1.5rem}.empty-state .auth-brand p{margin:4px 0 0;color:var(--muted);font-size:.9rem}.empty-state .auth-form{display:flex;flex-direction:column;gap:16px}.empty-state .auth-alt{text-align:center;margin-top:18px;color:var(--muted);font-size:.9rem}.empty-state .auth-alt .policy-form{display:flex;flex-direction:column;gap:20px;max-width:640px}.empty-state .auth-alt .policy-meta{display:flex;align-items:center;gap:14px;padding-bottom:14px;border-bottom:1px solid var(--card-border)}.empty-state .auth-alt .field-group{border:1px solid var(--card-border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}.empty-state .auth-alt .field-group legend{padding:0 8px;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.6px}.empty-state .auth-alt .toggle{display:flex;align-items:center;gap:10px;font-size:.95rem;cursor:pointer}.empty-state .auth-alt .toggle input{width:18px;height:18px;accent-color:var(--primary)}.empty-state .auth-alt .chip-grid{display:flex;flex-wrap:wrap;gap:8px}.empty-state .auth-alt .chip{border:1px solid var(--card-border);background:transparent;color:var(--muted);border-radius:999px;padding:7px 14px;font-size:.85rem;cursor:pointer;transition:all .15s}.empty-state .auth-alt .chip:hover{color:var(--text);border-color:var(--muted)}.empty-state .auth-alt .chip.on{background:var(--primary-dim);border-color:var(--primary);color:var(--primary-strong);font-weight:600}.empty-state .auth-alt .form-actions{display:flex;justify-content:flex-end}.empty-state .auth-alt .toolbar{margin-bottom:20px;max-width:320px}.empty-state .auth-alt .bar-list{display:flex;flex-direction:column;gap:12px}.empty-state .auth-alt .bar-row{display:grid;grid-template-columns:180px 1fr 80px;align-items:center;gap:14px;font-size:.9rem}.empty-state .auth-alt .bar-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.empty-state .auth-alt .bar-track{background:#ffffff0f;border-radius:999px;height:10px;overflow:hidden}.empty-state .auth-alt .bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--ok))}.empty-state .auth-alt .bar-value{color:var(--muted);text-align:right;font-variant-numeric:tabular-nums}@media(max-width:720px){.empty-state .auth-alt .topbar{flex-wrap:wrap;gap:12px;padding:12px 16px}.empty-state .auth-alt .main-nav{order:3;width:100%;overflow-x:auto}.empty-state .auth-alt .content{padding:18px}.empty-state .auth-alt .bar-row{grid-template-columns:120px 1fr 70px}.empty-state .auth-alt .device-row{flex-direction:column;align-items:flex-start}}.empty-state .pin-tip{background:#f59e0b1a;border:1px solid rgba(245,158,11,.35);color:#fcd34d;border-radius:10px;padding:10px 14px;font-size:.85rem;margin-bottom:18px}.empty-state .btn{margin-top:14px}.footer{padding:16px 28px;text-align:center;color:var(--muted);font-size:.8rem;border-top:1px solid var(--card-border)}.page-title{font-size:1.6rem;margin:0 0 22px}.muted{color:var(--muted)}.mt{margin-top:18px}