:root{--bg-color:#f5f7fa;--sidebar-bg:#fff;--primary-color:#2d5bff;--text-main:#333;--text-muted:#8898aa;--warning-color:#ff4757;--success-color:#2ed573;--border-color:#e4e8ed}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,sans-serif}body{background-color:var(--bg-color);color:var(--text-main)}.app-container{height:100vh;display:flex;overflow:hidden}.sidebar{background-color:var(--sidebar-bg);border-right:1px solid var(--border-color);flex-direction:column;justify-content:space-between;width:260px;padding:24px;display:flex}.logo h2{color:var(--text-main);margin-bottom:40px;font-size:24px}.logo span{color:var(--primary-color)}.nav-menu{flex-direction:column;flex:1;gap:12px;display:flex}.nav-item{color:var(--text-muted);border-radius:8px;padding:12px 16px;font-weight:500;text-decoration:none;transition:all .3s}.nav-item:hover,.nav-item.active{color:var(--primary-color);background-color:#edf1ff}.sidebar-footer .nav-item{display:block}.logout{color:var(--warning-color)}.logout:hover{color:#fff;background-color:#e6abab}.main-content{flex:1;padding:32px 48px;overflow-y:auto}.topbar{justify-content:space-between;align-items:center;margin-bottom:40px;display:flex}.greeting h1{margin-bottom:4px;font-size:28px}.greeting p{color:var(--text-muted);font-size:14px}.user-profile{align-items:center;gap:16px;display:flex}.status-indicator{border-radius:20px;align-items:center;gap:8px;padding:6px 12px;font-size:13px;font-weight:600;transition:all .3s;display:flex}.status-indicator.active{color:#38b2ac;background-color:#e6fffa}.status-indicator.active .status-dot{background-color:#38b2ac;animation:2s infinite pulse-dot;box-shadow:0 0 8px #38b2ac}.status-indicator.offline{color:#a0aec0;background-color:#f7fafc}.status-indicator.offline .status-dot{background-color:#a0aec0}.status-dot{border-radius:50%;width:8px;height:8px;display:inline-block}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.3)}}.avatar{background-color:var(--primary-color);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:20px;font-weight:600;display:flex}.dashboard-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;display:grid}.card{border:1px solid var(--border-color);background-color:#fff;border-radius:16px;padding:24px;box-shadow:0 4px 12px #00000008}.card h3{border-bottom:1px solid var(--border-color);margin-bottom:20px;padding-bottom:12px;font-size:18px}.info-row{justify-content:space-between;margin-bottom:12px;font-size:16px;display:flex}.progress-bar{background-color:var(--border-color);border-radius:4px;width:100%;height:8px;margin:16px 0 8px}.progress{background-color:var(--primary-color);border-radius:4px;height:100%}.sub-text{color:var(--text-muted);font-size:13px}.big-number{color:var(--primary-color);margin-bottom:4px;font-size:42px;font-weight:600}.big-number span{color:var(--text-muted);font-size:18px}.list-item{border-bottom:1px solid #f0f0f0;justify-content:space-between;padding:12px 0;display:flex}.list-item:last-of-type{border-bottom:none;margin-bottom:16px}.warning-text{color:var(--warning-color);font-weight:500}.btn-primary,.btn-outline{cursor:pointer;border-radius:8px;width:100%;padding:12px;font-weight:500;transition:all .2s}.btn-primary{background-color:var(--primary-color);color:#fff;border:none;margin-top:16px}.btn-primary:hover{background-color:#1e44d6}.btn-outline{color:var(--primary-color);border:1px solid var(--primary-color);background-color:#0000}.btn-outline:hover{background-color:#edf1ff}.badge-live{color:#fff;background-color:#ff4757;border-radius:4px;padding:2px 8px;font-size:10px;font-weight:700;animation:1.5s infinite blink}@keyframes blink{0%,to{opacity:1}50%{opacity:.5}}@media (width<=768px){.app-container{flex-direction:column;height:auto}.sidebar{border-right:none;border-bottom:1px solid var(--border-color);width:100%;padding:16px}.main-content{padding:16px}.topbar{flex-direction:column;align-items:flex-start;gap:16px}}