:root{--bg:#f5f6f8;--bg-card:#fff;--bg-elevated:#eef0f3;--border:#e2e5ea;--border-light:#cdd1d8;--accent:#2563eb;--accent-dim:rgba(37,99,235,.08);--accent-hover:#1d4ed8;--success:#16a34a;--success-dim:rgba(22,163,74,.08);--danger:#dc2626;--danger-dim:rgba(220,38,38,.08);--warning:#d97706;--warning-dim:rgba(217,119,6,.1);--text:#111827;--text-muted:#6b7280;--text-faint:#9ca3af;--mono:ui-monospace,"Menlo","Monaco","Cascadia Code","Consolas",monospace;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;--radius:6px;--radius-lg:10px;--shadow-sm:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);--shadow-md:0 4px 12px rgba(0,0,0,.1),0 2px 4px rgba(0,0,0,.06)}[data-theme=dark]{--bg:#0f1117;--bg-card:#171b24;--bg-elevated:#1e2330;--border:#2a3040;--border-light:#374151;--accent:#3b82f6;--accent-dim:rgba(59,130,246,.12);--accent-hover:#60a5fa;--success:#22c55e;--success-dim:rgba(34,197,94,.1);--danger:#f87171;--danger-dim:hsla(0,91%,71%,.1);--warning:#fbbf24;--warning-dim:rgba(251,191,36,.1);--text:#f1f5f9;--text-muted:#94a3b8;--text-faint:#475569;--shadow-sm:0 1px 3px rgba(0,0,0,.3);--shadow-md:0 4px 12px rgba(0,0,0,.4)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--bg);color:var(--text);font-family:var(--sans);min-height:100vh;line-height:1.5;transition:background .2s ease,color .2s ease}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-faint)}.layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;z-index:100;transition:background .2s ease,border-color .2s ease}.sidebar-logo{padding:20px;border-bottom:1px solid var(--border)}.sidebar-logo .logo-mark{width:32px;height:32px;background:var(--accent);border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}.sidebar-logo .logo-text{font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.02em}.sidebar-logo .logo-sub{font-size:11px;color:var(--text-muted);margin-top:1px}.sidebar-nav{flex:1 1;padding:12px 10px;display:flex;flex-direction:column;gap:2px}.nav-section-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);padding:8px 10px 4px;font-family:var(--mono)}.nav-item{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:var(--radius);cursor:pointer;color:var(--text-muted);font-size:13.5px;font-weight:500;transition:all .15s;text-decoration:none;border:none;background:none;width:100%;font-family:var(--sans)}.nav-item:hover{color:var(--text);background:var(--bg-elevated)}.nav-item.active{color:var(--accent);background:var(--accent-dim);font-weight:600}.nav-item .nav-icon{width:16px;height:16px;flex-shrink:0}.sidebar-footer{padding:12px 10px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.sidebar-footer-label{font-size:10px;color:var(--text-faint);text-align:center;padding-top:2px}.sidebar-action-btn{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted);cursor:pointer;width:100%;font-size:12px;font-weight:500;font-family:var(--sans);transition:all .15s;text-align:left}.sidebar-action-btn:hover{background:var(--bg);color:var(--text);border-color:var(--border-light)}.main{margin-left:240px;flex:1 1;min-height:100vh;display:flex;flex-direction:column}.page-header{padding:24px 32px;border-bottom:1px solid var(--border);background:var(--bg-card);display:flex;align-items:center;justify-content:space-between;gap:16px}.page-title{font-size:20px;font-weight:700;letter-spacing:-.02em;color:var(--text)}.page-subtitle{font-size:13px;color:var(--text-muted);margin-top:2px}.page-content{padding:28px 32px;flex:1 1}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}.card-header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}.card-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-family:var(--mono)}.card-body{padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:12px;gap:12px;margin-bottom:20px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 20px;box-shadow:var(--shadow-sm)}.stat-label{font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px}.stat-value{font-size:28px;font-weight:700;color:var(--text);line-height:1;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:-.02em}.stat-value.accent{color:var(--accent)}.stat-value.success{color:var(--success)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;border:1px solid transparent;font-family:var(--sans);white-space:nowrap;text-decoration:none;line-height:1.4}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 1px 2px 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22px;font-size:15px}.btn-icon{width:32px;height:32px;padding:0;display:inline-flex;align-items:center;justify-content:center}.form-group{margin-bottom:16px}.form-label{display:block;font-size:12px;font-weight:500;color:var(--text-muted);margin-bottom:5px}.form-input,.form-select,.form-textarea{width:100%;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:8px 12px;color:var(--text);font-size:14px;font-family:var(--sans);transition:border-color .15s,box-shadow .15s;outline:none;box-shadow:var(--shadow-sm)}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}.form-input::placeholder{color:var(--text-faint)}.form-textarea{resize:vertical;min-height:80px}.search-wrap{position:relative}.search-wrap .search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text-faint);width:15px;height:15px;pointer-events:none}.search-wrap .form-input{padding-left:36px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}thead tr{border-bottom:1px solid var(--border);background:var(--bg-elevated)}thead th{padding:10px 16px;text-align:left;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);white-space:nowrap}tbody tr{border-bottom:1px solid var(--border);transition:background .1s}tbody tr:last-child{border-bottom:none}tbody tr:hover{background:var(--bg-elevated)}tbody td{padding:12px 16px;font-size:14px;color:var(--text);vertical-align:middle}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600;letter-spacing:.02em}.badge-success{background:var(--success-dim);color:var(--success);border:1px solid rgba(22,163,74,.2)}.badge-muted{background:var(--bg-elevated);color:var(--text-muted);border:1px solid var(--border)}.badge-accent{background:var(--accent-dim);color:var(--accent);border:1px solid rgba(37,99,235,.2)}.badge-danger{background:var(--danger-dim);color:var(--danger);border:1px solid rgba(220,38,38,.2)}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-md);animation:slideUp .2s ease;max-height:90vh;overflow-y:auto}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.modal-header{padding:18px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:15px;font-weight:600;color:var(--text)}.modal-body{padding:24px}.modal-footer{padding:14px 24px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:flex-end;gap:8px}.dropzone,.modal-footer{background:var(--bg-elevated)}.dropzone{border:2px dashed var(--border-light);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;cursor:pointer;transition:all .2s}.dropzone.active,.dropzone:hover{border-color:var(--accent);background:var(--accent-dim)}.dropzone-icon{width:32px;height:32px;color:var(--text-faint);margin:0 auto 12px}.dropzone.active .dropzone-icon{color:var(--accent)}.dropzone-text{font-size:14px;color:var(--text-muted);margin-bottom:4px}.dropzone-hint{font-family:var(--mono);font-size:11px;color:var(--text-faint)}.progress-bar{height:5px;background:var(--bg-elevated);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:999px;transition:width .4s ease}.checkin-result{padding:14px 16px;border-radius:var(--radius);margin-bottom:16px;display:flex;align-items:flex-start;gap:12px}.checkin-result.success{background:var(--success-dim);border:1px solid rgba(22,163,74,.25)}.checkin-result.error{background:var(--danger-dim);border:1px solid rgba(220,38,38,.25)}.checkin-result.warning{background:var(--warning-dim);border:1px solid rgba(217,119,6,.25)}.empty-state{text-align:center;padding:60px 20px}.empty-state-icon{width:40px;height:40px;margin:0 auto 14px;color:var(--text-faint)}.empty-state-title{font-size:15px;font-weight:600;color:var(--text-muted);margin-bottom:6px}.empty-state-desc{font-size:13px;color:var(--text-faint)}.loading-wrap{display:flex;align-items:center;justify-content:center;padding:60px;gap:10px;color:var(--text-muted);font-size:13px}@keyframes spin{to{transform:rotate(1turn)}}.spinner{width:18px;height:18px;border:2px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear 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var(--border)}.event-card-stat{display:flex;flex-direction:column;gap:2px}.event-card-stat-value{font-size:20px;font-weight:700;color:var(--text);line-height:1;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:-.02em}.event-card-stat-value.accent{color:var(--accent)}.event-card-stat-label{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);font-weight:500}.event-card-divider{width:1px;height:24px;background:var(--border)}.filter-tabs{display:flex;gap:2px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:3px}.filter-tab{padding:5px 12px;border-radius:4px;font-size:12px;font-weight:500;cursor:pointer;color:var(--text-muted);transition:all .15s;border:none;background:none;font-family:var(--sans)}.filter-tab.active{background:var(--bg-card);color:var(--text);font-weight:600;box-shadow:var(--shadow-sm)}.breadcrumb{display:flex;align-items:center;gap:6px;margin-bottom:6px;font-size:13px}.breadcrumb a{color:var(--text-muted);text-decoration:none}.breadcrumb a:hover{color:var(--text)}.breadcrumb-sep{color:var(--text-faint)}.breadcrumb-current{color:var(--text-muted)}@media (max-width:768px){.sidebar{display:none}.main{margin-left:0}.page-header{padding:18px 20px;flex-direction:column;align-items:flex-start}.page-content{padding:20px}.events-grid{grid-template-columns:1fr}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.w-full{width:100%}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.text-muted{color:var(--text-muted)}.text-muted,.text-sm{font-size:13px}.text-xs{font-size:11px}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}