*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0d0d1a;--surface: #1e1e2e;--surface2: #252538;--border: #2a2a3e;--text: #e0e0e0;--muted: #888;--accent: #4a90d9;--accent-hover: #5aa3ec;--green: #4caf50;--yellow: #ff9800;--red: #f44336;--gray: #666;--radius: 10px;--radius-sm: 6px;--shadow: 0 2px 12px rgba(0,0,0,.4)}html,body{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit;font-size:inherit}input,select,textarea{font-family:inherit;font-size:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;outline:none;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--accent)}input::placeholder{color:var(--muted)}select option{background:var(--surface)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:var(--radius-sm);border:none;font-weight:600;font-size:14px;transition:background .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){border-color:var(--accent);color:var(--text)}.btn-danger{background:var(--red);color:#fff}.btn-danger:hover:not(:disabled){background:#e53935}.btn-sm{padding:5px 12px;font-size:13px}.btn-icon{padding:8px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--muted)}.btn-icon:hover{border-color:var(--accent);color:var(--text)}.layout{display:flex;flex-direction:column;min-height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:60px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text)}.header-logo span{color:var(--accent)}.header-actions{display:flex;align-items:center;gap:12px}.header-user{font-size:13px;color:var(--muted)}.main-content{flex:1;padding:28px 24px;max-width:1200px;margin:0 auto;width:100%}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{font-size:15px;font-weight:600;color:var(--text)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.auth-box{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow)}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo h1{font-size:22px;font-weight:700;color:var(--text)}.auth-logo p{font-size:13px;color:var(--muted);margin-top:4px}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.form-input{width:100%}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-hint{font-size:12px;color:var(--muted);margin-top:4px}.form-submit{width:100%;padding:10px;margin-top:8px;font-size:15px}.auth-footer{text-align:center;margin-top:20px;font-size:13px;color:var(--muted)}.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:16px}.alert-error{background:#f443361f;border:1px solid rgba(244,67,54,.3);color:#ff6b6b}.alert-success{background:#4caf501f;border:1px solid rgba(76,175,80,.3);color:#6fcf72}.alert-info{background:#4a90d91f;border:1px solid rgba(74,144,217,.3);color:#7ab8f5}.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;text-align:center}.stat-value{font-size:28px;font-weight:700;line-height:1;margin-bottom:4px}.stat-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.stat-total .stat-value{color:var(--text)}.stat-active .stat-value{color:var(--green)}.stat-offline .stat-value{color:var(--red)}.stat-pending .stat-value{color:var(--yellow)}.filter-tabs{display:flex;gap:4px;margin-bottom:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:4px;width:fit-content}.filter-tab{padding:6px 16px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--muted);font-size:13px;font-weight:500;transition:all .15s}.filter-tab:hover{color:var(--text)}.filter-tab.active{background:var(--accent);color:#fff}.dashboard-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}.dashboard-toolbar h2{font-size:20px;font-weight:700}.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.device-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;cursor:pointer;transition:border-color .15s,transform .1s,box-shadow .15s;text-decoration:none;color:inherit;display:block}.device-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:0 4px 16px #4a90d91f;text-decoration:none}.device-card-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px;gap:8px}.device-name{font-size:15px;font-weight:600;color:var(--text);word-break:break-word}.device-id{font-family:SFMono-Regular,Consolas,monospace;font-size:11px;color:var(--muted);margin-top:2px}.device-meta{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.device-meta-row{display:flex;align-items:center;gap:6px}.device-meta-row 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var(--border)}.modal-title{font-size:17px;font-weight:700}.modal-close{background:none;border:none;color:var(--muted);font-size:20px;padding:4px;border-radius:4px;line-height:1;cursor:pointer}.modal-close:hover{color:var(--text)}.modal-body{padding:24px}.modal-footer{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid var(--border)}.pairing-input{font-family:SFMono-Regular,Consolas,monospace;font-size:24px;text-align:center;letter-spacing:8px;text-transform:uppercase}.detail-page{max-width:800px}.detail-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:20px;cursor:pointer;background:none;border:none}.detail-back:hover{color:var(--text)}.detail-header{display:flex;align-items:center;gap:14px;margin-bottom:28px}.detail-header-info h1{font-size:22px;font-weight:700}.detail-header-info 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.section-header{color:var(--red);background:#f443360d;border-bottom-color:#f4433633}.danger-text{font-size:13px;color:var(--muted);margin-bottom:14px}.loading-container{display:flex;align-items:center;justify-content:center;padding:60px}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.header-nav{display:flex;align-items:center;gap:4px}.nav-link{padding:6px 14px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--muted);font-size:14px;font-weight:500;transition:all .15s;cursor:pointer}.nav-link:hover,.nav-link.active{color:var(--text);background:var(--surface2)}.group-tabs{display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:24px;margin-top:12px}.group-tab{padding:10px 20px;border:none;background:transparent;color:var(--muted);font-size:14px;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;transition:all .15s}.group-tab:hover{color:var(--text)}.group-tab.active{color:var(--text);border-bottom-color:var(--accent)}.role-badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:100px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.badge-owner{background:#4a90d926;color:var(--accent);border:1px solid rgba(74,144,217,.3)}.badge-admin{background:#ff98001f;color:var(--yellow);border:1px solid rgba(255,152,0,.25)}.badge-member{background:#6666661f;color:var(--gray);border:1px solid rgba(102,102,102,.25)}.invitation-banner{background:#1a2a4a;border-left:3px solid var(--accent);border-radius:var(--radius-sm);padding:16px 20px;margin-bottom:24px}.invitation-banner-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:12px}.invitation-list{display:flex;flex-direction:column;gap:10px}.invitation-item{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:10px 14px;background:#ffffff0a;border-radius:var(--radius-sm)}.invitation-info{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.invitation-group{font-weight:600;font-size:14px}.invitation-role{font-size:12px;color:var(--muted);background:var(--surface2);padding:2px 8px;border-radius:100px}.invitation-from{font-size:12px;color:var(--muted)}.invitation-actions{display:flex;gap:8px}.btn-accept{background:var(--green);color:#fff;border:none}.btn-accept:hover:not(:disabled){background:#43a047}@media (max-width: 768px){.main-content{padding:16px}.stats-bar{grid-template-columns:repeat(2,1fr)}.device-grid,.info-grid{grid-template-columns:1fr}.header{padding:0 16px}.form-row{grid-template-columns:1fr}}@media (max-width: 480px){.stats-bar{grid-template-columns:repeat(2,1fr)}.filter-tabs{width:100%}.filter-tab{flex:1;text-align:center}}