*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #10b981;--primary-dark: #059669;--secondary: #3b82f6;--danger: #ef4444;--warning: #f59e0b;--bg: #0f172a;--bg-card: #1e293b;--bg-hover: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--border: #334155;--shadow: 0 10px 30px rgba(0, 0, 0, .3)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#0f172a,#1e293b);color:var(--text);min-height:100vh;line-height:1.6}#root{min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.navbar{background:var(--bg-card);border-bottom:1px solid var(--border);padding:1rem 0;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.navbar-content{display:flex;justify-content:space-between;align-items:center}.navbar-brand{font-size:1.5rem;font-weight:800;color:var(--primary);text-decoration:none;display:flex;align-items:center;gap:.5rem}.navbar-menu{display:flex;gap:1rem;align-items:center}.btn{padding:.75rem 1.5rem;border-radius:.5rem;border:none;font-weight:600;cursor:pointer;transition:all .3s ease;text-decoration:none;display:inline-block;font-size:.95rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 5px 15px #10b9814d}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-2px)}.btn-secondary{background:var(--secondary);color:#fff}.btn-secondary:hover{background:#2563eb}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.card{background:var(--bg-card);border-radius:1rem;padding:1.5rem;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .3s ease,box-shadow .3s ease}.card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #0006}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text)}.form-input{width:100%;padding:.875rem 1rem;border-radius:.5rem;border:2px solid var(--border);background:var(--bg);color:var(--text);font-size:1rem;transition:border-color .3s ease}.form-input:focus{outline:none;border-color:var(--primary)}.form-input::placeholder{color:var(--text-muted)}.grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.badge{padding:.375rem .75rem;border-radius:9999px;font-size:.875rem;font-weight:600;display:inline-block}.badge-success{background:#10b98133;color:var(--primary)}.badge-warning{background:#f59e0b33;color:var(--warning)}.badge-danger{background:#ef444433;color:var(--danger)}.loading{display:flex;justify-content:center;align-items:center;height:200px}.spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:1rem 1.5rem;border-radius:.5rem;margin-bottom:1.5rem}.alert-danger{background:#ef44441a;border:1px solid var(--danger);color:var(--danger)}.alert-success{background:#10b9811a;border:1px solid var(--primary);color:var(--primary)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.auth-card{max-width:450px;width:100%}.device-card{position:relative}.device-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:1rem}.device-footer{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}.device-footer .btn{flex:1;min-width:100px;padding:.625rem 1rem;font-size:.875rem;text-align:center}.device-footer .btn-danger{flex:0 0 auto;min-width:auto}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.5rem}.container{padding:0 1rem}.grid-2{grid-template-columns:1fr}}