:root{--bg: #f6f7f9;--surface: #ffffff;--border: #e3e6ea;--text: #1b2530;--muted: #68727e;--primary: #2f6feb;--primary-dark: #2458c0;--danger: #d64545;--danger-bg: #fdf0f0;--warning-bg: #fff8e6;--error-bg: #fdf0f0;--radius: 8px;--shadow: 0 1px 3px rgba(16, 24, 40, .08)}:root[data-theme=dark]{--bg: #121212;--surface: #1e1e1e;--border: #3c4043;--text: #e8eaed;--muted: #9aa0a6;--primary: #8ab4f8;--primary-dark: #aecbfa;--danger: #f28b82;--danger-bg: #3c2020;--warning-bg: #3c3020;--error-bg: #3c2020;--shadow: 0 1px 3px rgba(0,0,0,.3)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}.login-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:32px;box-shadow:var(--shadow)}.login-title{margin:0;font-size:22px}.login-subtitle{margin:4px 0 24px;color:var(--muted)}.app-shell{display:flex;min-height:100vh}.sidebar{width:230px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.sidebar-brand{padding:20px;font-weight:700;font-size:18px;border-bottom:1px solid var(--border)}.sidebar-nav{padding:12px;display:flex;flex-direction:column;gap:2px;flex:1}.sidebar-nav a{padding:10px 12px;border-radius:var(--radius);text-decoration:none;color:var(--text)}.sidebar-nav a:hover{background:var(--bg)}.sidebar-nav a.active{background:var(--primary);color:#fff}.sidebar-footer{padding:12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:10px}.admin-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.admin-email{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{flex:1;padding:28px 32px;max-width:1200px}.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px}.page-header h1{margin:0;font-size:22px}.page-header p{margin:4px 0 0;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){background:var(--bg)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark);border-color:var(--primary-dark)}.btn-danger{color:var(--danger);border-color:#f0c6c6}.btn-danger:hover:not(:disabled){background:var(--danger-bg)}.btn-ghost{border-color:transparent;background:transparent}.btn-success{background:#137333;border-color:#137333;color:#fff}.btn-success:hover:not(:disabled){background:#0d5c2a;border-color:#0d5c2a}.btn-block{width:100%}.btn-sm{padding:4px 10px;font-size:13px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field span{font-weight:500;font-size:13px}.field input{padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;background:var(--surface);color:var(--text)}.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2f6feb1f}.alert{padding:10px 14px;border-radius:var(--radius);margin-bottom:16px;font-size:13px}.alert-error{background:var(--error-bg);color:var(--danger)}.alert-warning{background:var(--warning-bg);color:#8a6100}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.table th,.table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--border)}.table th{background:#fafbfc;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.table tbody tr:last-child td{border-bottom:none}.table tbody tr:hover{background:#fafbfc}.cell-title{font-weight:600}.cell-sub{color:var(--muted);font-size:12px}img.thumb{width:40px;height:28px;object-fit:cover;border-radius:6px;border:1px solid var(--border);display:block}.color-swatch{display:inline-block;width:18px;height:18px;border-radius:4px;border:1px solid var(--border);vertical-align:middle}tr.row-detail td{background:#fafbfc;font-size:13px}tr.row-detail p{margin:0 0 6px}tr.row-detail p:last-child{margin-bottom:0}.pagination{display:flex;align-items:center;gap:12px}.text-right{text-align:right!important}.actions{white-space:nowrap;width:1%}.muted{color:var(--muted)}.badge{display:inline-block;margin-left:8px;padding:1px 7px;border-radius:999px;background:#e8f0fe;color:var(--primary-dark);font-size:11px;font-weight:600}.btn-link{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px;padding:0}.btn-link:hover{text-decoration:underline}.pagination{display:flex;align-items:center;gap:12px;margin-top:16px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#10182873;display:flex;align-items:flex-start;justify-content:center;padding:32px 16px;overflow-y:auto;z-index:50}.modal-card{width:100%;max-width:440px;max-height:calc(100vh - 80px);overflow-y:auto;background:var(--surface);border-radius:12px;padding:24px;box-shadow:0 8px 30px #1018282e}.modal-card-wide{max-width:680px}.modal-card textarea{padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;background:var(--surface);color:var(--text);font-family:inherit;resize:vertical}.modal-card select{padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;background:var(--surface);color:var(--text)}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.form-row .field{margin-bottom:12px}.modal-card h2{margin:0 0 18px;font-size:18px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);margin-bottom:18px;flex-wrap:wrap}.tab{border:none;background:none;padding:10px 14px;font-size:14px;font-weight:500;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}.tab:hover{color:var(--text)}.tab.active{color:var(--accent, #2563eb);border-bottom-color:var(--accent, #2563eb)}.tab-count{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;background:var(--surface-alt, #eef2f7);font-size:12px;color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;cursor:pointer;transition:box-shadow .15s ease}.stat-card:hover{box-shadow:0 4px 14px #1018281a}.stat-value{font-size:28px;font-weight:700}.stat-label{margin-top:4px;font-size:13px;color:var(--muted)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.section-header h2{margin:0;font-size:16px}.inline-form{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap;align-items:flex-start}.inline-form input,.inline-form select{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:var(--surface);color:var(--text);min-width:160px}.inline-form .alert{flex-basis:100%;margin:0}.filter-form{margin:0;align-items:center}.filter-form label{font-size:13px;color:var(--muted, #777);margin-right:-4px}.tenant-layout{display:flex;min-height:100vh}.tenant-sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:20px 0;display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{font-size:18px;font-weight:700;padding:0 20px 20px;color:var(--primary)}.sidebar-nav{display:flex;flex-direction:column;flex:1}.sidebar-link{padding:10px 20px;color:var(--text);text-decoration:none;font-size:14px;transition:background .15s}.sidebar-link:hover{background:var(--border)}.sidebar-link.active{background:var(--primary);color:#fff}.sidebar-section{padding:16px 20px 6px;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted, #999);border-top:1px solid var(--border);margin-top:8px}.sidebar-logout{margin:20px;width:auto}.tenant-main{flex:1;padding:30px;max-width:960px;overflow:auto}.tenant-topbar{display:flex;justify-content:flex-end;align-items:center;padding:0 0 16px}.bell-link{position:relative;display:inline-flex;align-items:center;font-size:20px;text-decoration:none;color:var(--text)}.bell-badge{position:absolute;top:-6px;right:-10px;background:var(--primary);color:#fff;font-size:11px;line-height:1;padding:3px 5px;border-radius:10px;min-width:16px;text-align:center}.text-success{color:#137333}.text-danger{color:#b00020}.course-meta{display:flex;gap:12px;align-items:center;margin:8px 0 16px;flex-wrap:wrap}.badge{display:inline-block;padding:2px 8px;border-radius:4px;background:var(--border);font-size:12px;text-transform:uppercase}.badge-danger{background:#fdecea;color:#b00020}.badge-warning{background:#fff3e0;color:#e65100}.badge-published{background:#e6f4ea;color:#137333}.badge-in_progress{background:#e8f0fe;color:#1967d2}.badge-not_started{background:var(--border);color:var(--muted, #777)}.course-card{display:block;padding:20px;text-decoration:none;transition:box-shadow .15s}.course-card:hover{box-shadow:0 2px 12px #00000014}.course-card-title{font-weight:600;margin-bottom:8px;color:var(--text)}.course-card-meta{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted, #777)}.search-input{width:100%;max-width:400px;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;margin-bottom:20px;background:var(--surface);color:var(--text)}.skeleton{background:linear-gradient(90deg,var(--border) 25%,transparent 50%,var(--border) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@media (max-width: 768px){.app-shell{flex-direction:column}.sidebar{width:100%;height:auto;position:relative;padding:12px 16px;flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px}.sidebar-brand{padding:0;font-size:16px}.sidebar-nav{flex-direction:row;gap:4px}.sidebar-nav a{padding:6px 12px;font-size:13px}.sidebar-footer{flex-direction:row;align-items:center;gap:8px}.sidebar .btn-block{width:auto}.content{padding:16px}.table{font-size:13px}.table td,.table th{padding:8px 10px}.page-header{flex-direction:column;align-items:flex-start;gap:8px}.card-grid{grid-template-columns:1fr 1fr}.tenant-sidebar{width:100%;height:auto;position:relative;flex-direction:row;flex-wrap:wrap;padding:12px 16px}.tenant-sidebar .sidebar-nav{flex-direction:row}.tenant-main{padding:16px;max-width:100%}.tenant-layout{flex-direction:column}}@media (max-width: 480px){.card-grid{grid-template-columns:1fr}.inline-form{flex-direction:column}.inline-form input,.inline-form select{min-width:100%}}.org-tree{display:flex;flex-direction:column;gap:6px;padding:8px 0}.org-node{border-left:3px solid var(--border);padding:6px 10px;margin:2px 0;border-radius:0 8px 8px 0;background:var(--surface)}.org-node.org-company{border-left-color:var(--primary)}.org-node.org-dept{border-left-color:#7c4dff;background:transparent}.org-node.org-team{border-left-color:#00b0ff;background:transparent}.org-node.org-position{border-left-color:#00c853;background:transparent}.org-node.org-emp-list{border-left-color:transparent;background:transparent;padding:4px 10px}.org-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.org-children{margin-top:4px}.org-toggle{background:none;border:none;cursor:pointer;font-size:12px;width:18px;text-align:left;color:var(--muted)}.org-tag{font-size:10px;font-weight:700;letter-spacing:.5px;padding:1px 6px;border-radius:4px;text-transform:uppercase}.org-tag.company{background:#e8f0fe;color:#1967d2}.org-tag.dept{background:#f3e8fd;color:#7c4dff}.org-tag.team{background:#e1f5fe;color:#0086c3}.org-tag.position{background:#e6f4ea;color:#137333}.org-count{color:var(--muted);font-size:12px;white-space:nowrap}.org-actions{display:inline-flex;gap:8px;margin-left:auto;white-space:nowrap}.org-members{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.org-emp{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:999px;background:#f5f6f8;font-size:12px}.org-emp-dot{width:7px;height:7px;border-radius:50%;background:#c4c4c4}.org-emp-dot.status-active{background:#34a853}.org-emp-dot.status-inactive{background:#c4c4c4}.org-inline{margin:10px 0 4px;padding:10px;background:#f8f9fb;border-radius:8px}.filter-chips{display:flex;gap:6px;overflow-x:auto;padding:4px 0}.filter-chip{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:all .15s ease}.filter-chip:hover{border-color:var(--primary);color:var(--primary)}.filter-chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.filter-chip .chip-count{font-size:11px;font-weight:600;background:#ffffff40;border-radius:999px;padding:1px 6px}.filter-chip.active .chip-count{background:#ffffff40}.filter-chip:not(.active) .chip-count{background:var(--bg);color:var(--muted)}.badge-open{background:transparent;color:var(--primary);border:1px solid var(--primary)}.badge-booked{background:var(--text);color:var(--surface)}.badge-completed{background:#e6f4ea;color:#137333}.badge-cancelled{background:var(--danger-bg);color:var(--danger)}.badge-rescheduled{background:#fff3e0;color:#e65100}:root[data-theme=dark] .badge-booked{background:#5f6368}:root[data-theme=dark] .badge-completed{background:#1a3c1a;color:#81c995}:root[data-theme=dark] .badge-cancelled{background:#3c2020;color:#f28b82}:root[data-theme=dark] .badge-rescheduled{background:#3c3020;color:#fbbc04}.btn-accept{background:#137333;color:#fff;border:1px solid #137333}.btn-accept:hover{background:#0d5a27;border-color:#0d5a27}:root[data-theme=dark] .btn-accept{background:#81c995;color:#121212;border-color:#81c995}:root[data-theme=dark] .btn-accept:hover{background:#6bbd82;border-color:#6bbd82}.learner-expert-toggle{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}.learner-expert-toggle button{padding:6px 16px;border:none;background:var(--surface);color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.learner-expert-toggle button:first-child{border-right:1px solid var(--border)}.learner-expert-toggle button.active{background:var(--primary);color:#fff}.session-search{display:flex;align-items:center;gap:8px;padding:6px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.session-search input{border:none;outline:none;background:transparent;color:var(--text);font-size:13px;width:180px}.session-search input::placeholder{color:var(--muted)}.session-search-icon{color:var(--muted);font-size:14px}.session-list-card{border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;background:var(--surface);margin-bottom:8px;transition:box-shadow .15s ease}.session-list-card:hover{box-shadow:var(--shadow)}.session-list-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.session-list-card-topic{font-weight:600;font-size:14px;color:var(--text)}.session-list-card-meta{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--muted);margin-top:4px}.session-list-card-actions{display:flex;gap:8px;margin-top:8px}