:root{--bg-base: #080f1c;--bg-surface: #0b1422;--bg-card: #0e1a2b;--bg-hover: #111d2e;--bg-active: #0d2040;--border: #1a2744;--border-light: #223355;--accent: #00e5b0;--accent-dim: #009975;--accent-bg: #0d2e20;--blue: #4a9eff;--blue-bg: #0d1f3a;--amber: #f0a030;--amber-bg: #2a1e0a;--red: #ff6080;--red-bg: #2a0d12;--purple: #a080f0;--purple-bg: #1e1040;--text-primary: #e2e8f0;--text-secondary:#a0b4c8;--text-muted: #4a6080;--font: "Plus Jakarta Sans", system-ui, sans-serif;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--sidebar-w: 240px;--topbar-h: 56px;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font);background:var(--bg-base);color:var(--text-primary);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);background:var(--bg-surface);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}.sidebar-logo{padding:20px 18px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.sidebar-logo .logo-mark{display:flex;align-items:center;gap:10px}.sidebar-logo .logo-icon{width:34px;height:34px;border-radius:var(--radius-md);background:linear-gradient(135deg,#00e5b0,#0080c0);display:flex;align-items:center;justify-content:center;font-size:16px}.sidebar-logo h1{font-size:16px;font-weight:700;color:var(--accent);letter-spacing:.3px}.sidebar-logo p{font-size:9px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.2px;margin-top:2px}.sidebar-nav{overflow-y:auto;flex:1;padding:10px 0 16px}.nav-group{margin-bottom:4px}.nav-group-label{font-size:9px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.5px;padding:10px 18px 5px;font-weight:600}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 18px;cursor:pointer;font-size:13px;color:var(--text-muted);transition:all var(--transition);border-left:2px solid transparent;text-decoration:none;-webkit-user-select:none;user-select:none}.nav-item:hover{background:var(--bg-hover);color:var(--text-secondary)}.nav-item.active{background:var(--bg-active);color:var(--accent);border-left-color:var(--accent);font-weight:500}.nav-item .nav-icon{width:18px;height:18px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-footer{border-top:1px solid var(--border);padding:12px 18px;display:flex;align-items:center;gap:10px}.sidebar-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#06c,#00a0a0);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;flex-shrink:0}.sidebar-footer-info p:first-child{font-size:12px;font-weight:600;color:var(--text-primary)}.sidebar-footer-info p:last-child{font-size:10px;color:var(--text-muted)}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{height:var(--topbar-h);background:var(--bg-surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;flex-shrink:0}.topbar-left h2{font-size:15px;font-weight:600;color:var(--text-primary)}.topbar-left p{font-size:11px;color:var(--text-muted);margin-top:1px}.topbar-right{display:flex;align-items:center;gap:14px}.search-bar{background:var(--bg-hover);border:1px solid var(--border);border-radius:var(--radius-md);padding:6px 12px;display:flex;align-items:center;gap:7px;transition:border-color var(--transition)}.search-bar:focus-within{border-color:var(--accent)}.search-bar input{background:none;border:none;outline:none;color:var(--text-primary);font-size:12px;font-family:var(--font);width:160px}.search-bar input::placeholder{color:var(--text-muted)}.icon-btn{width:34px;height:34px;border-radius:var(--radius-md);background:var(--bg-hover);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);transition:all var(--transition);position:relative}.icon-btn:hover{border-color:var(--accent);color:var(--accent)}.notif-dot{position:absolute;top:6px;right:6px;width:7px;height:7px;background:var(--red);border-radius:50%;border:1.5px solid var(--bg-surface)}.topbar-avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#06c,#00a0a0);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;cursor:pointer;border:2px solid var(--border);transition:border-color var(--transition)}.topbar-avatar:hover{border-color:var(--accent)}.page-content{flex:1;overflow-y:auto;padding:24px}.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px}.page-header h2{font-size:20px;font-weight:700;color:var(--text-primary)}.page-header p{font-size:12px;color:var(--text-muted);margin-top:3px}.header-actions{display:flex;gap:8px;align-items:center}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}.stats-grid-2{grid-template-columns:repeat(2,1fr)}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px}.stat-card .stat-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;font-weight:500;margin-bottom:8px}.stat-card .stat-value{font-size:26px;font-weight:700;line-height:1;margin-bottom:6px}.stat-card .stat-delta{font-size:11px;display:flex;align-items:center;gap:4px}.stat-delta.up{color:var(--accent)}.stat-delta.down{color:var(--red)}.stat-card .stat-icon{float:right;margin-top:-4px;opacity:.15}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.card-title{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px}.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.full-width{grid-column:1 / -1}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}thead th{text-align:left;padding:8px 12px;color:var(--text-muted);font-weight:500;border-bottom:1px solid var(--border);font-size:10px;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}tbody td{padding:10px 12px;border-bottom:1px solid #0e1624;color:var(--text-secondary);vertical-align:middle}tbody tr:last-child td{border-bottom:none}tbody tr{transition:background var(--transition)}tbody tr:hover td{background:var(--bg-hover)}.td-primary{color:var(--text-primary)!important;font-weight:500}.td-mono{color:var(--text-muted);font-size:11px;font-family:monospace}.badge{display:inline-flex;align-items:center;font-size:10px;font-weight:600;padding:3px 9px;border-radius:20px;white-space:nowrap}.badge-green{background:var(--accent-bg);color:var(--accent)}.badge-blue{background:var(--blue-bg);color:var(--blue)}.badge-amber{background:var(--amber-bg);color:var(--amber)}.badge-red{background:var(--red-bg);color:var(--red)}.badge-purple{background:var(--purple-bg);color:var(--purple)}.badge-gray{background:#1a2030;color:var(--text-muted)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-md);font-size:12px;font-weight:600;cursor:pointer;border:none;font-family:var(--font);transition:all var(--transition);text-decoration:none;white-space:nowrap}.btn-primary{background:var(--accent);color:#080f1c}.btn-primary:hover{background:#00ffbe}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-muted)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.btn-ghost{background:var(--bg-hover);color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-active);color:var(--accent)}.btn-danger{background:var(--red-bg);color:var(--red)}.btn-sm{padding:4px 10px;font-size:11px}.btn-icon{padding:6px;background:transparent;border:none;cursor:pointer;color:var(--text-muted);border-radius:4px;display:inline-flex;align-items:center;justify-content:center;transition:all var(--transition)}.btn-icon:hover{background:#ffffff0d;color:var(--text-primary)}.action-btn-edit:hover{color:var(--blue);background:var(--blue-bg)}.action-btn-delete:hover{color:var(--red);background:var(--red-bg)}.form-section-title{font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid-3{grid-template-columns:1fr 1fr 1fr}.form-group{display:flex;flex-direction:column;gap:5px}.form-group label{font-size:11px;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.form-group input,.form-group select,.form-group textarea{background:var(--bg-hover);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;color:var(--text-primary);font-size:13px;font-family:var(--font);outline:none;transition:border-color var(--transition)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent)}.form-group input::placeholder{color:var(--text-muted)}.form-group select{cursor:pointer}.form-group select option{background:var(--bg-card)}.form-actions{display:flex;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--border)}.progress-bar{height:5px;background:var(--border);border-radius:3px;overflow:hidden}.progress-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent),var(--blue));transition:width .4s ease}.leaderboard-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid #0e1624}.leaderboard-item:last-child{border-bottom:none}.lb-rank{width:24px;text-align:center;font-size:14px;font-weight:700;color:var(--text-muted);flex-shrink:0}.lb-info{flex:1;min-width:0}.lb-name{font-size:13px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lb-sub{font-size:11px;color:var(--text-muted);margin-top:2px;display:flex;align-items:center;gap:8px}.lb-pct{font-size:12px;font-weight:700;flex-shrink:0}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.video-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:border-color var(--transition)}.video-card:hover{border-color:var(--border-light)}.video-thumb{background:var(--bg-hover);height:90px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--transition);position:relative}.video-thumb:hover{background:var(--bg-active)}.play-btn{width:38px;height:38px;border-radius:50%;background:#00e5b01f;border:1.5px solid var(--accent);display:flex;align-items:center;justify-content:center;color:var(--accent)}.video-body{padding:12px 14px}.video-subject{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;margin-bottom:5px}.video-title-text{font-size:12px;font-weight:500;color:var(--text-primary);line-height:1.4;margin-bottom:6px}.video-meta{font-size:11px;color:var(--text-muted);display:flex;align-items:center;gap:8px}.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.recharts-tooltip-wrapper{z-index:100}.custom-tooltip{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:8px 12px;font-size:12px}.custom-tooltip p{color:var(--text-muted)}.custom-tooltip span{color:var(--accent);font-weight:600}.role-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid #0e1624}.role-row:last-child{border-bottom:none}.divider{height:1px;background:var(--border);margin:16px 0}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent)}.text-sm{font-size:12px}.mt-4{margin-top:14px}.mt-6{margin-top:20px}.flex{display:flex}.flex-center{display:flex;align-items:center;gap:8px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}@media print{@page{margin:0;size:A4}body{background:#fff!important;margin:0;padding:0}.sidebar,.topbar,.no-print,.no-print-layout>div:first-child{display:none!important}.app-layout,.main-area,.page-content,.no-print-layout{height:auto!important;overflow:visible!important;display:block!important;padding:0!important;margin:0!important}.print-container-bg{background:transparent!important;border-radius:0!important}#printable-area{padding:20px!important}.print-card{-webkit-print-color-adjust:exact;print-color-adjust:exact;page-break-inside:avoid;break-inside:avoid}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:translate(0)}}@media (max-width: 1200px){.marks-detail-grid{grid-template-columns:1fr!important}}@media (max-width: 1100px){.stats-grid{grid-template-columns:repeat(2,1fr)}.section-grid,.charts-grid{grid-template-columns:1fr}.video-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){:root{--sidebar-w: 60px}.sidebar-logo h1,.sidebar-logo p,.nav-group-label,.nav-item span:last-child,.sidebar-footer-info{display:none}.nav-item{justify-content:center;padding:12px}.nav-item .nav-icon{width:20px;height:20px}.stats-grid{grid-template-columns:1fr 1fr}.form-grid,.video-grid{grid-template-columns:1fr}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:spin 1s linear infinite}[data-theme=light]{--bg-base: #f0f4f8;--bg-surface: #f8fafc;--bg-card: #ffffff;--bg-hover: #f1f5f9;--bg-active: #ecfdf5;--border: #e2e8f0;--border-light: #cbd5e1;--accent-bg: #d1fae5;--blue-bg: #dbeafe;--amber-bg: #fef3c7;--red-bg: #ffe4e6;--purple-bg: #ede9fe;--text-primary: #0f172a;--text-secondary:#334155;--text-muted: #64748b}body.sidebar-compact{--sidebar-w: 60px}body.sidebar-compact .sidebar-logo h1,body.sidebar-compact .sidebar-logo p,body.sidebar-compact .nav-group-label,body.sidebar-compact .nav-item span:not(.nav-icon),body.sidebar-compact .sidebar-footer-info{display:none}body.sidebar-compact .sidebar-logo{padding:14px 0;display:flex;justify-content:center}body.sidebar-compact .sidebar-logo .logo-mark{gap:0}body.sidebar-compact .nav-item{justify-content:center;padding:10px 0}body.sidebar-compact .nav-item .nav-icon{width:20px;height:20px}body.sidebar-compact .sidebar-footer{justify-content:center;padding:12px 0}body.sidebar-compact .sidebar-avatar{margin:0}