*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--green: #00c853;--green-light: #e8f5e9;--green-dark: #00a843;--dark: #0a0f1e;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--bg: #f4f6f9;--white: #ffffff;--sidebar-width: 220px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.shell{display:grid;grid-template-columns:var(--sidebar-width) 1fr;min-height:100vh}.sidebar{background:var(--white);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:0;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{padding:20px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.sidebar-brand-logo{width:36px;height:36px;background:var(--green);border-radius:10px;display:grid;place-items:center;font-size:16px;font-weight:800;color:#042110;flex-shrink:0}.sidebar-brand-text{display:flex;flex-direction:column}.sidebar-brand-name{font-size:16px;font-weight:800;color:var(--text);line-height:1.2}.sidebar-brand-sub{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.sidebar-user{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.sidebar-user-avatar{width:36px;height:36px;background:var(--green-light);border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;color:var(--green-dark);flex-shrink:0}.sidebar-user-info{display:flex;flex-direction:column;overflow:hidden}.sidebar-user-name{font-size:13px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-plan{font-size:11px;color:var(--muted)}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}.sidebar-nav-group{margin-bottom:8px}.sidebar-nav-label{font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;padding:6px 10px}.sidebar-nav a{display:flex;align-items:center;gap:10px;color:var(--muted);text-decoration:none;padding:9px 10px;border-radius:8px;font-size:14px;font-weight:500;transition:all .15s}.sidebar-nav a:hover{background:var(--bg);color:var(--text)}.sidebar-nav a.active{background:var(--green-light);color:var(--green-dark);font-weight:600}.sidebar-nav a .nav-icon{font-size:16px;width:20px;text-align:center;flex-shrink:0}.sidebar-footer{padding:12px 8px;border-top:1px solid var(--border)}.btn-logout{display:flex;align-items:center;gap:8px;width:100%;background:none;border:none;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--muted);cursor:pointer;transition:all .15s;font-weight:500}.btn-logout:hover{background:#fee2e2;color:#dc2626}.main{background:var(--bg);min-height:100vh;display:flex;flex-direction:column}.topbar{background:var(--white);border-bottom:1px solid var(--border);padding:14px 28px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}.topbar-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.topbar-breadcrumb strong{color:var(--text);font-weight:600}.topbar-right{display:flex;align-items:center;gap:12px}.topbar-user{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text)}.page-content{padding:28px;flex:1}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:16px}.page-header-left{display:flex;align-items:center;gap:12px}.page-header-icon{width:42px;height:42px;background:var(--green-light);border-radius:10px;display:grid;place-items:center;font-size:20px;flex-shrink:0}.page-header h2{font-size:20px;font-weight:700;margin:0}.page-header p{font-size:13px;color:var(--muted);margin:2px 0 0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:6px;transition:box-shadow .15s}.stat-card:hover{box-shadow:0 4px 16px #0000000f}.stat-card.online{border-left:3px solid var(--green)}.stat-card.offline{border-left:3px solid #ef4444}.stat-card.warning{border-left:3px solid #f59e0b}.stat-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:500}.stat-value{font-size:24px;font-weight:700;color:var(--text)}.stat-card.online .stat-value{color:var(--green-dark)}.stat-card.offline .stat-value{color:#ef4444}.stat-card.warning .stat-value{color:#f59e0b}.stat-sub{font-size:12px;color:var(--muted)}.card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600}.card-title-icon{font-size:16px}.table-wrap{overflow-x:auto;border-radius:10px;border:1px solid var(--border)}table{width:100%;border-collapse:collapse;background:var(--white)}thead 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.15s;display:inline-flex;align-items:center;gap:6px}.btn-primary:hover{background:var(--green-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:var(--white);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 18px;font-weight:600;font-size:14px;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:6px}.btn-secondary:hover{background:var(--bg)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;font-weight:600;color:var(--text)}.field input,.field textarea,.field select{background:var(--white);border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:14px;color:var(--text);outline:none;transition:border-color .15s;width:100%;font-family:inherit}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--green);box-shadow:0 0 0 3px #00c85314}.alert{border-radius:8px;padding:12px 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h2{font-size:26px;font-weight:700;color:var(--text)}.login-form-wrap p{color:var(--muted);font-size:14px;margin-top:-16px}.login-error{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:10px 14px;color:#dc2626;font-size:14px}.ticket-card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:12px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .15s}.ticket-card:hover{box-shadow:0 4px 16px #0000000f}.ticket-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.ticket-head strong{font-size:15px;font-weight:600}.ticket-meta{font-size:12px;color:var(--muted)}.ticket-reply{background:var(--green-light);border:1px solid #bbf7d0;border-radius:8px;padding:12px;font-size:13px}.ticket-reply strong{color:var(--green-dark);display:block;margin-bottom:4px;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.speedtest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}.speedtest-gauge{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:24px 16px;display:flex;flex-direction:column;align-items:center;gap:8px}.speedtest-gauge-ring{width:100px;height:100px;border-radius:50%;border:8px solid var(--border);border-top-color:var(--green);display:flex;align-items:center;justify-content:center;flex-direction:column;position:relative}.speedtest-gauge-ring.running{animation:spin 1s linear infinite}.speedtest-gauge-value{font-size:20px;font-weight:800;color:var(--text)}.speedtest-gauge-unit{font-size:11px;color:var(--muted)}.speedtest-gauge-label{font-size:13px;font-weight:600;color:var(--muted)}.chart-container{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px}.chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.chart-title{font-size:15px;font-weight:600}.chart-legend{display:flex;gap:16px}.chart-legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}.chart-legend-dot{width:10px;height:10px;border-radius:50%}.period-selector{display:flex;gap:4px;background:var(--bg);border-radius:8px;padding:3px}.period-selector button{border:none;background:none;padding:5px 12px;border-radius:6px;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;transition:all .15s}.period-selector button.active{background:var(--white);color:var(--text);font-weight:600;box-shadow:0 1px 4px #00000014}.loading{display:grid;place-items:center;min-height:100vh;font-size:15px;color:var(--muted);gap:12px;flex-direction:column}.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.session-row-active td{background:#f0fdf4}@media (max-width: 900px){.shell{grid-template-columns:1fr}.sidebar{display:none}.speedtest-grid{grid-template-columns:repeat(2,1fr)}.login-shell{grid-template-columns:1fr}.login-left{display:none}}@media (max-width: 600px){.page-content{padding:16px}.stats-grid,.speedtest-grid{grid-template-columns:repeat(2,1fr)}}