*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{min-height:100%}button,input,select,textarea{font:inherit}button{cursor:pointer;background:0 0;border:none}a{color:inherit;text-decoration:none}:root{--blue:#1a4f8a;--blue-d:#0f3460;--blue-dd:#0a2540;--blue-hi:#bfdbfe;--blue-lo:#eff6ff;--go:#10b981;--warn:#f59e0b;--info:#3b82f6;--violet:#8b5cf6;--danger:#ef4444;--ink-900:#0d1b2a;--ink-800:#1f2937;--ink-700:#374151;--ink-500:#6b7280;--ink-400:#9ca3af;--ink-200:#e5e7eb;--bg:#f0f4f8;--surface:#ffffffd9;--surf-mut:#f8fafc;--border:#94a3b82e;--bdr-blue:#1a4f8a2e;--sidebar-w:248px;--r-sm:8px;--r-md:12px;--r-lg:18px;--r-xl:24px;--r-2xl:30px;--sh-sm:0 1px 3px #1118270d;--sh-md:0 12px 32px #11182714;--sh-lg:0 28px 72px #11182721;--glow:0 0 0 1px #1a4f8a1a, 0 20px 60px #1a4f8a24;--ease:cubic-bezier(.2,.8,.2,1);--font:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}body{font-family:var(--font);color:var(--ink-900);-webkit-font-smoothing:antialiased;background:radial-gradient(circle at 5% -5%,#1a4f8a24,#0000 34rem),radial-gradient(circle at 92% 6%,#bfdbfe61,#0000 28rem),radial-gradient(circle at 50% 100%,#1a4f8a0d,#0000 36rem),linear-gradient(#f0f5ff 0%,#f0f4f8 50%,#eef2f7 100%);min-height:100vh;font-size:14px;line-height:1.5;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;opacity:.45;background-image:linear-gradient(#11182708 1px,#0000 1px),linear-gradient(90deg,#11182708 1px,#0000 1px);background-size:44px 44px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 60%);mask-image:linear-gradient(#000,#0000 60%)}h1,h2,h3,h4,h5,h6{font-family:var(--font);letter-spacing:-.025em;color:var(--ink-900);font-weight:700;line-height:1.2}@keyframes fadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes livepulse{70%{box-shadow:0 0 0 8px #10b98100}to{box-shadow:0 0 #10b98100}}@keyframes blink{50%{opacity:.65}}.app-layout{z-index:1;min-height:100vh;display:flex;position:relative}.main-content{animation:fadeUp .28s var(--ease) both;flex:1;padding:28px;overflow-y:auto}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);border-radius:var(--r-2xl);-webkit-backdrop-filter:blur(24px)saturate(1.4);backdrop-filter:blur(24px)saturate(1.4);height:100vh;box-shadow:var(--sh-md), inset 0 1px 0 #ffffffe6;background:#fffc;border:1px solid #ffffffb8;flex-direction:column;margin:14px 0 14px 14px;display:flex;position:sticky;top:0;overflow:hidden}.sidebar:before{content:"";background:linear-gradient(90deg, var(--blue-dd), var(--blue-hi), var(--blue));border-radius:var(--r-2xl) var(--r-2xl) 0 0;opacity:.8;z-index:1;height:2px;position:absolute;top:0;left:0;right:0}.sidebar-brand{border-bottom:1px solid var(--border);align-items:center;gap:11px;padding:20px 16px 16px;display:flex}.brand-logo{color:#fff;letter-spacing:-.01em;background:linear-gradient(135deg, var(--blue-dd), var(--blue-d) 45%, var(--blue));border-radius:13px;flex-shrink:0;place-items:center;width:40px;height:40px;font-size:13px;font-weight:800;display:grid;box-shadow:0 10px 28px #1a4f8a4d,inset 0 1px #ffffff2e}.brand-name{letter-spacing:-.03em;color:var(--ink-900);font-size:13.5px;font-weight:800}.brand-sub{color:var(--ink-500);letter-spacing:.02em;text-transform:uppercase;margin-top:1px;font-size:10.5px;font-weight:500}.sidebar-nav{flex-direction:column;flex:1;gap:1px;padding:12px 10px;display:flex}.nav-item{min-height:40px;color:var(--ink-500);transition:color .15s var(--ease), background .15s var(--ease), transform .15s var(--ease);cursor:pointer;border-radius:13px;align-items:center;gap:10px;padding:8px 12px;font-size:13px;font-weight:600;display:flex;position:relative;overflow:hidden}.nav-item:before{content:"";background:linear-gradient(var(--blue-hi), var(--blue));opacity:0;width:3px;transition:opacity .15s var(--ease), transform .15s var(--ease);border-radius:999px;position:absolute;inset:7px auto 7px 0;transform:scaleY(.4)}.nav-item:hover{color:var(--ink-900);background:#f8fafcd9;transform:translate(2px)}.nav-item.active{color:var(--blue-d);background:linear-gradient(135deg,#eff6ffe6,#ffffffb8);box-shadow:inset 0 0 0 1px #1a4f8a1a}.nav-item.active:before{opacity:1;transform:scaleY(1)}.nav-dot{background:#64748b14;border-radius:7px;flex-shrink:0;place-items:center;width:20px;height:20px;font-size:12px;transition:background .15s;display:grid}.nav-item.active .nav-dot{background:linear-gradient(135deg, var(--blue-d), var(--blue));color:#fff;box-shadow:0 5px 12px #1a4f8a38}.nav-badge{background:linear-gradient(135deg, var(--danger), #f87171);color:#fff;border-radius:999px;place-items:center;min-width:20px;height:18px;margin-left:auto;padding:0 5px;font-size:10px;font-weight:800;display:grid;box-shadow:0 5px 14px #ef444447}.sidebar-footer{border-top:1px solid var(--border);padding:12px 14px}.user-info{border:1px solid var(--border);background:linear-gradient(135deg,#ffffffd1,#f8fafcb3);border-radius:16px;align-items:center;gap:9px;margin-bottom:10px;padding:9px;display:flex}.user-avatar{color:#fff;background:linear-gradient(135deg, var(--blue-dd), var(--blue));border-radius:50%;flex-shrink:0;place-items:center;width:32px;height:32px;font-size:12px;font-weight:800;display:grid}.user-name{color:var(--ink-900);font-size:12.5px;font-weight:700}.user-role{color:var(--ink-500);font-size:11px}.logout-btn{border-radius:var(--r-sm);border:1px solid var(--border);width:100%;color:var(--ink-500);background:#f8fafccc;padding:6px 10px;font-size:12px;font-weight:500;transition:background .15s,color .15s}.logout-btn:hover{color:var(--ink-900);background:#fff}.login-page{background:radial-gradient(circle at 8% -4%,#1a4f8a26,#0000 30rem),radial-gradient(circle at 90% 8%,#bfdbfe59,#0000 26rem),linear-gradient(#f0f5ff 0%,#f0f4f8 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border-radius:var(--r-xl);width:390px;box-shadow:var(--sh-lg);animation:scaleIn .25s var(--ease);background:#ffffffe0;border:1px solid #ffffffbf;padding:44px 40px}.login-logo{background:linear-gradient(135deg, var(--blue-dd), var(--blue-d) 45%, var(--blue));color:#fff;border-radius:14px;justify-content:center;align-items:center;width:50px;height:50px;margin:0 auto 24px;font-size:21px;font-weight:800;display:flex;box-shadow:0 12px 32px #1a4f8a4d,inset 0 1px #ffffff2e}.login-title{text-align:center;margin-bottom:6px;font-size:21px;font-weight:800}.login-sub{text-align:center;color:var(--ink-500);margin-bottom:30px;font-size:13px}.form-group{margin-bottom:14px}.form-label{color:var(--ink-700);letter-spacing:-.005em;margin-bottom:6px;font-size:11.5px;font-weight:700;display:block}.form-input{border:1.5px solid var(--border);border-radius:var(--r-md);width:100%;color:var(--ink-900);background:#f8fafccc;padding:9px 12px;font-size:13.5px;transition:border-color .15s,box-shadow .15s,background .15s}.form-input:focus{border-color:var(--blue);background:#fff;outline:none;box-shadow:0 0 0 3px #1a4f8a1a}.btn-primary{border-radius:var(--r-md);background:linear-gradient(135deg, var(--blue-d), var(--blue));color:#fff;cursor:pointer;width:100%;font-size:13.5px;font-weight:700;font-family:var(--font);transition:transform .14s var(--ease), box-shadow .14s var(--ease);border:none;margin-top:8px;padding:10px;box-shadow:0 10px 24px #1a4f8a47}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 32px #1a4f8a5c}.btn-primary:active{transform:scale(.985)}.login-error{color:var(--danger);border-radius:var(--r-sm);background:#ef444412;border:1px solid #ef444433;margin-bottom:16px;padding:9px 12px;font-size:13px;font-weight:600}.page-header{justify-content:space-between;align-items:center;margin-bottom:26px;display:flex}.page-title{letter-spacing:-.03em;font-size:22px;font-weight:800}.metrics-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px;display:grid}.metric-card{border:1px solid var(--border);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--sh-md);transition:transform .19s var(--ease), box-shadow .19s var(--ease);animation:fadeUp .3s var(--ease) both;background:linear-gradient(#fffffff2,#ffffffc7);border-radius:22px;padding:20px;position:relative;overflow:hidden}.metric-card:hover{box-shadow:var(--sh-lg);transform:translateY(-2px)}.metric-card:before{content:"";background:linear-gradient(90deg,#0000,#1a4f8a73 50%,#0000);height:1px;position:absolute;inset:0 0 auto}.metric-card:after{content:"";pointer-events:none;background:radial-gradient(circle,#1a4f8a1f,#0000 70%);border-radius:50%;width:120px;height:120px;position:absolute;top:-40px;right:-40px}.metric-label{color:var(--ink-400);text-transform:uppercase;letter-spacing:.07em;margin-bottom:10px;font-size:10.5px;font-weight:700}.metric-value{letter-spacing:-.04em;color:var(--ink-900);font-variant-numeric:tabular-nums;font-size:30px;font-weight:800;line-height:1}.metric-sub{color:var(--ink-500);margin-top:8px;font-size:12px;font-weight:500}.card{border:1px solid var(--border);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--sh-md);animation:fadeUp .3s var(--ease) both;background:linear-gradient(#fffffff2,#ffffffd1);border-radius:22px;margin-bottom:16px;position:relative;overflow:hidden}.card-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.card-title{letter-spacing:-.02em;font-size:13.5px;font-weight:800}.filters{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:6px;padding:12px 18px;display:flex}.filter-btn{border:1px solid var(--border);color:var(--ink-500);transition:all .14s var(--ease);background:#ffffffa6;border-radius:10px;padding:5px 13px;font-size:11.5px;font-weight:700}.filter-btn:hover{color:var(--ink-900);background:#fff}.filter-btn.active{color:var(--blue-d);border-color:var(--bdr-blue);background:#eff6ffe6}.course-filter-bar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}.course-filter-field{border:1px solid var(--border);min-width:220px;color:var(--ink-500);background:#ffffffb8;border-radius:12px;align-items:center;gap:8px;padding:6px 8px 6px 12px;font-size:11.5px;font-weight:800;display:flex}.course-filter-field select{border:0;border-left:1px solid var(--border);min-width:0;color:var(--ink-900);font:inherit;cursor:pointer;background:0 0;outline:none;flex:1;padding:5px 28px 5px 8px}.course-filter-field:focus-within{border-color:var(--bdr-blue);box-shadow:0 0 0 3px #185fa51a}@media (width<=560px){.course-filter-field{flex:100%;min-width:0}}.search-bar{gap:8px;margin-bottom:16px;display:flex}.search-input{border:1.5px solid var(--border);border-radius:var(--r-md);color:var(--ink-900);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffd1;flex:1;padding:9px 14px;font-size:13px;transition:border-color .15s,box-shadow .15s,background .15s}.search-input:focus{border-color:var(--blue);background:#fff;outline:none;box-shadow:0 0 0 3px #1a4f8a17}.entry{cursor:pointer;transition:background .12s var(--ease);border-bottom:1px solid #94a3b81f;align-items:flex-start;gap:13px;padding:13px 20px;display:flex}.entry:last-child{border-bottom:none}.entry:hover{background:#f8fafccc}.entry-avatar{letter-spacing:-.02em;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:12px;font-weight:800;display:flex}.entry-body{flex:1;min-width:0}.entry-name{letter-spacing:-.015em;color:var(--ink-900);margin-bottom:2px;font-size:13.5px;font-weight:700}.entry-meta{color:var(--ink-500);font-size:12px;font-weight:400}.entry-msg{color:var(--ink-700);white-space:nowrap;text-overflow:ellipsis;max-width:420px;margin-top:3px;font-size:12px;overflow:hidden}.entry-right{text-align:right;flex-direction:column;flex-shrink:0;align-items:flex-end;gap:5px;display:flex}.entry-time{color:var(--ink-400);font-variant-numeric:tabular-nums;font-size:11px;font-weight:600}.badge{white-space:nowrap;font-variant-numeric:tabular-nums;border-radius:999px;align-items:center;gap:4px;padding:3px 9px;font-size:11px;font-weight:700;display:inline-flex}.badge-blue{color:#1d4ed8;background:#3b82f617;border:1px solid #3b82f633}.badge-green{color:#059669;background:#10b98117;border:1px solid #10b98133}.badge-amber{color:#b45309;background:#f59e0b17;border:1px solid #f59e0b33}.badge-red{color:#dc2626;background:#ef444414;border:1px solid #ef44442e}.badge-purple{color:#6d28d9;background:#8b5cf617;border:1px solid #8b5cf633}.badge-gray{color:#4b5563;background:#6b728014;border:1px solid #6b72802e}.detail-panel{border:1px solid var(--border);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--sh-md);background:linear-gradient(#fffffff2,#ffffffd1);border-radius:22px;margin-top:12px;padding:24px;position:relative;overflow:hidden}.detail-title{letter-spacing:-.025em;align-items:center;gap:12px;margin-bottom:18px;font-size:15px;font-weight:800;display:flex}.detail-row{border-bottom:1px solid #94a3b81f;justify-content:space-between;align-items:center;padding:10px 0;font-size:13px;display:flex}.detail-row:last-child{border-bottom:none}.detail-label{color:var(--ink-500);font-size:12px;font-weight:600}.detail-actions{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.detail-message{border-radius:var(--r-md);color:var(--ink-700);background:#eff6ffb3;border-left:3px solid #1a4f8a80;margin-top:12px;padding:14px 16px;font-size:13px;line-height:1.65}.btn-sm{border-radius:var(--r-sm);border:1px solid var(--border);cursor:pointer;color:var(--ink-700);box-shadow:var(--sh-sm);transition:transform .14s var(--ease), box-shadow .14s var(--ease), background .14s;background:#fffc;padding:6px 14px;font-size:12px;font-weight:600}.btn-sm:hover{box-shadow:var(--sh-md);background:#fff;transform:translateY(-1px)}.btn-sm:active{transform:scale(.98)}.btn-sm-blue{background:linear-gradient(135deg, var(--blue-d), var(--blue));color:#fff;border-color:#0000;box-shadow:0 6px 18px #1a4f8a40}.btn-sm-blue:hover{color:#fff;background:linear-gradient(135deg, var(--blue-d), var(--blue));border-color:#0000;box-shadow:0 10px 24px #1a4f8a59}.btn-sm-green{color:#fff;background:linear-gradient(135deg,#059669,#10b981);border-color:#0000;box-shadow:0 6px 18px #10b98140}.btn-sm-green:hover{color:#fff;border-color:#0000;box-shadow:0 10px 24px #10b98159}.status-select{border-radius:var(--r-sm);border:1.5px solid var(--border);color:var(--ink-700);cursor:pointer;background:#fffc;padding:6px 10px;font-size:12px;font-weight:600;transition:border-color .15s,box-shadow .15s}.status-select:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px #1a4f8a17}.empty-state{text-align:center;color:var(--ink-400);padding:56px 24px}.empty-icon{opacity:.5;margin-bottom:12px;font-size:36px}.empty-text{font-size:14px;font-weight:600}.loading{text-align:center;color:var(--ink-400);padding:48px;font-size:14px;font-weight:600}.live-dot{color:#059669;background:#10b9811a;border:1px solid #10b98138;border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.live-dot:before{content:"";background:var(--go);border-radius:50%;width:7px;height:7px;animation:2s infinite livepulse;display:block;box-shadow:0 0 #10b98199}[style*="position: fixed"][style*="inset: 0"]{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}@keyframes spin{to{transform:rotate(360deg)}}.login-wrap{min-height:100vh;font-family:var(--font);display:flex}.login-brand{background:linear-gradient(135deg,#060f1a 0%,#0a2540 35%,#0f3460 65%,#1a4f8a 100%);flex-direction:column;flex:0 0 42%;justify-content:space-between;padding:36px 44px;display:flex;position:relative;overflow:hidden}.login-form-side{background:#fff;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:48px 40px;display:flex}.login-mobile-logo{display:none}@media (width<=900px){.login-brand{flex:0 0 38%;padding:28px 32px}.login-form-side{padding:40px 32px}}@media (width<=640px){.login-wrap{flex-direction:column}.login-brand{display:none}.login-form-side{background:radial-gradient(circle at 5% -5%,#1a4f8a1a,#0000 24rem),radial-gradient(circle at 95% 8%,#bfdbfe40,#0000 20rem),#fff;flex:1;justify-content:flex-start;padding:40px 24px 32px}.login-mobile-logo{align-self:flex-start;align-items:center;gap:12px;margin-bottom:40px;display:flex}}
