/* === Reset & Base === */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;background:#f0f2f5;color:#333;font-size:14px;line-height:1.5}
a{color:#1890ff;text-decoration:none}
a:hover{color:#40a9ff}
button{font-family:inherit;font-size:14px}

/* === Layout === */
.admin-layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:#001529;color:#fff;flex-shrink:0;display:flex;flex-direction:column}
.sidebar-header{padding:20px 16px;font-size:18px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.1);white-space:nowrap;overflow:hidden}
.sidebar-nav{flex:1;padding:8px 0}
.nav-item{display:block;padding:12px 24px;color:rgba(255,255,255,.65);cursor:pointer;transition:all .2s;border-left:3px solid transparent;font-size:14px}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-item.active{color:#fff;background:rgba(24,144,255,.3);border-left-color:#1890ff}
.sidebar-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1)}
.btn-logout{width:100%;padding:8px;background:transparent;color:rgba(255,255,255,.65);border:1px solid rgba(255,255,255,.3);border-radius:4px;cursor:pointer;transition:all .2s}
.btn-logout:hover{color:#fff;border-color:#fff}

/* === Main Content === */
.main-content{flex:1;display:flex;flex-direction:column;min-width:0}
.top-bar{background:#fff;padding:12px 24px;border-bottom:1px solid #e8e8e8;display:flex;justify-content:space-between;align-items:center}
.top-bar h2{font-size:18px;font-weight:500}
.user-info{color:#666;font-size:13px}
.page-body{flex:1;padding:24px;overflow-y:auto}

/* === Tab Panels === */
.tab-panel{display:none}
.tab-panel.active{display:block}

/* === Cards & Tables === */
.card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:16px}
.card-title{font-size:16px;font-weight:500;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid #f0f0f0}
th{background:#fafafa;font-weight:500;color:#555;font-size:13px}
tr:hover td{background:#fafafa}
.empty-state{text-align:center;padding:40px;color:#999}

/* === Buttons === */
.btn{display:inline-block;padding:6px 16px;border-radius:4px;border:1px solid #d9d9d9;background:#fff;cursor:pointer;transition:all .2s;font-size:13px;line-height:1.5}
.btn:hover{border-color:#40a9ff;color:#40a9ff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:#1890ff;color:#fff;border-color:#1890ff}
.btn-primary:hover{background:#40a9ff;border-color:#40a9ff;color:#fff}
.btn-danger{color:#e64340;border-color:#e64340}
.btn-danger:hover{color:#ff6b6b;border-color:#ff6b6b}
.btn-sm{padding:3px 10px;font-size:12px}

/* === Forms === */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13px;color:#555;margin-bottom:4px}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:7px 10px;border:1px solid #d9d9d9;border-radius:4px;font-size:13px}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:#1890ff}
.form-inline{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;margin-bottom:16px}
.form-inline .form-row{margin-bottom:0}

/* === Tags & Badges === */
.tag{display:inline-block;padding:2px 8px;border-radius:3px;font-size:12px;line-height:1.6}
.tag-blue{background:#e6f7ff;color:#1890ff;border:1px solid #91d5ff}
.tag-green{background:#f6ffed;color:#52c41a;border:1px solid #b7eb8f}
.tag-orange{background:#fff7e6;color:#fa8c16;border:1px solid #ffd591}
.tag-red{background:#fff1f0;color:#f5222d;border:1px solid #ffa39e}
.tag-gray{background:#f5f5f5;color:#999;border:1px solid #d9d9d9}

/* === Modal === */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.45);z-index:1000;display:none;justify-content:center;align-items:center}
.modal-overlay.open{display:flex}
.modal{background:#fff;border-radius:8px;width:560px;max-width:90vw;max-height:85vh;overflow-y:auto;box-shadow:0 4px 20px rgba(0,0,0,.15)}
.modal-header{padding:16px 20px;border-bottom:1px solid #f0f0f0;font-size:16px;font-weight:500;display:flex;justify-content:space-between;align-items:center}
.modal-close{background:none;border:none;font-size:20px;cursor:pointer;color:#999;padding:0 4px}
.modal-close:hover{color:#333}
.modal-body{padding:20px}
.modal-footer{padding:12px 20px;border-top:1px solid #f0f0f0;display:flex;justify-content:flex-end;gap:8px}

/* === Timeline === */
.timeline{padding-left:20px;border-left:2px solid #e8e8e8}
.timeline-item{position:relative;padding:0 0 20px 16px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-27px;top:4px;width:12px;height:12px;border-radius:50%;background:#1890ff;border:2px solid #fff;box-shadow:0 0 0 2px #e8e8e8}
.timeline-time{font-size:12px;color:#999;margin-bottom:2px}
.timeline-content{font-size:13px;color:#333}

/* === Pagination === */
.pagination{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin-top:16px;font-size:13px}
.pagination button{padding:4px 10px}

/* === Toast === */
.toast-container{position:fixed;top:20px;right:20px;z-index:2000}
.toast{padding:10px 16px;border-radius:4px;margin-bottom:8px;font-size:13px;box-shadow:0 2px 8px rgba(0,0,0,.12);animation:fadeIn .3s}
.toast-success{background:#f6ffed;border:1px solid #b7eb8f;color:#52c41a}
.toast-error{background:#fff1f0;border:1px solid #ffa39e;color:#f5222d}
@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* === Masked Data === */
.masked{color:#999;letter-spacing:1px}

/* === Confirm Dialog === */
.confirm-text{font-size:14px;line-height:1.6;color:#333;padding:8px 0}

/* === Responsive === */
@media(max-width:768px){
  .sidebar{width:60px}
  .sidebar-header,.nav-item span,.sidebar-footer .btn-logout span{display:none}
  .nav-item{padding:12px 0;text-align:center}
  .page-body{padding:12px}
}

/* === ID-based layout (index.html uses IDs) === */
#app-container{display:flex;min-height:100vh}
#sidebar{width:220px;background:#001529;color:#fff;flex-shrink:0;display:flex;flex-direction:column}
#sidebar .nav-header{padding:20px 16px;font-size:18px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.1);white-space:nowrap;overflow:hidden}
#nav-menu{list-style:none;flex:1;padding:8px 0}
#nav-menu li a{display:block;padding:12px 24px;color:rgba(255,255,255,.65);cursor:pointer;transition:all .2s;border-left:3px solid transparent;font-size:14px;text-decoration:none}
#nav-menu li a:hover{color:#fff;background:rgba(255,255,255,.06)}
#nav-menu li a.active{color:#fff;background:rgba(24,144,255,.3);border-left-color:#1890ff}
#sidebar .nav-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:8px;align-items:center}
#sidebar .nav-footer span{color:rgba(255,255,255,.65);font-size:13px}
#main-content{flex:1;display:flex;flex-direction:column;min-width:0}
#page-header{background:#fff;padding:12px 24px;border-bottom:1px solid #e8e8e8}
#page-header h2{font-size:18px;font-weight:500;margin:0}
#page-body{flex:1;padding:24px;overflow-y:auto}
#loading-mask{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,.7);z-index:999;display:flex;justify-content:center;align-items:center;font-size:16px;color:#666}

/* === Data Table (used by all modules) === */
.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);overflow:hidden}
.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:1px solid #f0f0f0;font-size:13px}
.data-table th{background:#fafafa;font-weight:500;color:#555}
.data-table tr:hover td{background:#fafafa}

/* === Tab Bar === */
.tab-bar{display:flex;gap:0;margin-bottom:16px;border-bottom:2px solid #e8e8e8}
.tab-btn{padding:10px 20px;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;font-size:14px;color:#666;transition:all .2s}
.tab-btn:hover{color:#1890ff}
.tab-btn.active{color:#1890ff;border-bottom-color:#1890ff;font-weight:500}

/* === Filter Bar === */
.filter-bar{display:flex;gap:10px;align-items:center;margin-bottom:16px;padding:12px 16px;background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.filter-bar label{font-size:13px;color:#555}
.filter-bar select{padding:6px 10px;border:1px solid #d9d9d9;border-radius:4px;font-size:13px}

/* === Empty & Error Tips === */
.empty-tip{text-align:center;padding:40px;color:#999;font-size:14px}
.error-msg{color:#e64340;padding:16px;text-align:center;font-size:14px}

/* === Detail Panel (modal-like inline) === */
.detail-panel{background:#fff;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.15);padding:24px;max-width:600px;width:90vw;max-height:80vh;overflow-y:auto}
.detail-panel h3{font-size:16px;font-weight:500;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
.detail-panel p{margin-bottom:10px;font-size:14px;line-height:1.6}
.detail-panel b{color:#333}

/* === Timeline Panel === */
.timeline-panel{background:#fff;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.15);padding:24px;max-width:640px;width:90vw;max-height:80vh;overflow-y:auto}
.timeline-panel h3{font-size:16px;font-weight:500;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
.timeline-list{list-style:none;padding-left:20px;border-left:2px solid #e8e8e8}
.timeline-list li{position:relative;padding:0 0 16px 16px}
.timeline-list li:last-child{padding-bottom:0}
.timeline-list li::before{content:"";position:absolute;left:-26px;top:6px;width:10px;height:10px;border-radius:50%;background:#1890ff;border:2px solid #fff;box-shadow:0 0 0 2px #e8e8e8}
.tl-time{display:block;font-size:12px;color:#999;margin-bottom:2px}
.tl-action{display:inline-block;font-weight:500;color:#333;margin-right:8px}
.tl-detail{color:#666;font-size:13px}

/* === Pagination Info === */
.pagination-info{text-align:right;padding:12px 0;font-size:13px;color:#666}

/* === Readonly Notice === */
.readonly-notice{background:#fffbe6;border:1px solid #ffe58f;padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:13px;line-height:1.6;color:#666}

/* === Button Loading State === */
.btn-loading{opacity:.6;cursor:not-allowed !important;pointer-events:none}

/* === Modal Overlay active state === */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.45);z-index:1000;display:flex;justify-content:center;align-items:center}

/* === Action button spacing === */
.btn-sm + .btn-sm{margin-left:6px}

/* === Status tags === */
.status-pending{color:#fa8c16}
.status-active{color:#52c41a}
.status-completed{color:#1890ff}
.status-cancelled{color:#999}

/* Finance notice banners */
.notice-banner { padding: 8px 12px; margin-bottom: 8px; border-radius: 4px; font-size: 13px; }
.notice-info { background: #e8f4fd; color: #1a5276; border-left: 3px solid #2980b9; }
.notice-warn { background: #fef9e7; color: #7d6608; border-left: 3px solid #f39c12; }
.notice-error { background: #fdedec; color: #922b21; border-left: 3px solid #e74c3c; }
.notice-banner ul { margin: 4px 0 0 16px; padding: 0; }
.tag-red { background: #e74c3c; color: #fff; }

/* Horizontal scroll for wide tables */
.table-scroll-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll-wrapper .data-table { min-width: 900px; white-space: nowrap; }
.cell-copyable:hover { background: #f0f7ff; text-decoration: underline; }

/* === Attachment Panel === */
.attach-panel{background:#fff;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.15);padding:24px;max-width:720px;width:92vw;max-height:80vh;overflow-y:auto}
.attach-panel h3{font-size:16px;font-weight:500;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
.attach-count{font-size:13px;color:#999;font-weight:400}
.attach-grid{display:flex;flex-direction:column;gap:12px}
.attach-card{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid #f0f0f0;border-radius:6px;background:#fafafa}
.attach-preview{flex-shrink:0;width:64px;height:64px;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:4px;background:#eee}
.attach-thumb{width:64px;height:64px;object-fit:cover;border-radius:4px}
.attach-file-icon{display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#666;text-align:center;line-height:1.2;padding:4px}
.attach-info{flex:1;min-width:0}
.attach-name{font-size:13px;font-weight:500;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.attach-meta{font-size:12px;color:#888;line-height:1.6}
.attach-actions{flex-shrink:0;display:flex;flex-direction:column;gap:4px}
.attach-actions .btn-sm{text-align:center;font-size:12px;padding:4px 10px;text-decoration:none;color:#1890ff;border:1px solid #1890ff;border-radius:4px;background:#fff;cursor:pointer}
.attach-actions .btn-sm:hover{background:#e6f7ff}
.admin-panel-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.45);z-index:1000;display:flex;justify-content:center;align-items:center}
.tl-actor{display:inline-block;font-size:12px;color:#666;margin-left:8px}
.btn-attachments{margin-left:6px}
.attach-card-voided{opacity:0.55;border-style:dashed}
.attach-voided{display:inline-block;font-size:11px;color:#ff4d4f;border:1px solid #ff4d4f;border-radius:3px;padding:0 4px;margin-left:6px;vertical-align:middle}

/* === Training detail wide panel === */
.detail-wide { max-width: 720px; }
.detail-table-wrap { margin: 16px 0; }
.print-reg-table { width: 100%; border-collapse: collapse; border: 2px solid #333; }
.print-reg-table caption { font-size: 16px; font-weight: bold; padding: 10px 0; caption-side: top; text-align: center; }
.print-reg-table th, .print-reg-table td { border: 1px solid #333; padding: 8px 10px; text-align: left; font-size: 13px; vertical-align: top; }
.print-reg-table th { background: #f5f5f5; font-weight: bold; width: 170px; white-space: nowrap; }
.print-reg-table td { word-wrap: break-word; white-space: pre-wrap; }
.print-disclaimer { font-size: 11px; color: #666; margin-top: 10px; padding-top: 8px; border-top: 1px dashed #ccc; text-align: center; }
.detail-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; padding-top: 12px; border-top: 1px solid #f0f0f0; }

/* === Print styles === */
@media print {
  body > *:not(.modal-overlay), .sidebar, .top-bar, .nav-bar, header, footer,
  .filter-bar, .pagination-info, .detail-actions, .btn-sm, .no-print { display: none !important; }
  .modal-overlay { position: static !important; background: none !important; display: block !important; }
  .detail-panel { box-shadow: none !important; max-width: 100% !important; width: 100% !important; max-height: none !important; padding: 0 !important; border-radius: 0 !important; }
  .print-reg-table { page-break-inside: avoid; border-color: #000 !important; }
  .print-reg-table th, .print-reg-table td { border-color: #000 !important; }
  .print-disclaimer { color: #000 !important; border-top-color: #000 !important; }
}