:root{--primary: #1a6daf;--primary-dark: #0f4f80;--accent: #17a8a8;--accent-dark: #0d8080;--bg: #f5f7fa;--sidebar-bg: #0f3d62;--sidebar-text: #c8dff0;--sidebar-active: #1a6daf;--sidebar-hover: #1a4e7a;--card-bg: #ffffff;--border: #d0d7de;--text: #1a2332;--text-muted: #6b7a8d;--success: #2e7d32;--success-bg: #e8f5e9;--error: #c62828;--error-bg: #ffebee;--warning: #e65100;--warning-bg: #fff3e0;--sidebar-width: 240px;--header-height: 60px;--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.08);--shadow-md: 0 4px 16px rgba(0,0,0,.12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}.app-shell{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;z-index:100;transition:width .2s}.sidebar-header{padding:20px 16px;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-logo{font-size:18px;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px}.sidebar-logo span{font-size:22px}.sidebar-subtitle{font-size:11px;color:#ffffff80;margin-top:2px}.sidebar-nav{padding:12px 0;flex:1}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 16px;color:var(--sidebar-text);text-decoration:none;font-size:13.5px;border-left:3px solid transparent;transition:background .15s,border-color .15s,color .15s}.nav-link:hover{background:var(--sidebar-hover);color:#fff}.nav-link.active{background:#1a6daf40;border-left-color:var(--accent);color:#fff}.nav-link .nav-icon{font-size:16px;flex-shrink:0}.sidebar-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1);font-size:11px;color:#ffffff59}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.top-bar{height:var(--header-height);background:var(--card-bg);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;gap:12px;box-shadow:0 1px 4px #0000000f}.top-bar-title{font-size:17px;font-weight:600;color:var(--text)}.page-area{flex:1;overflow-y:auto;padding:24px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;display:flex;align-items:center;gap:8px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:4px}.stat-card .stat-label{font-size:12px;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--primary)}.stat-card .stat-icon{font-size:24px;margin-bottom:8px}.form-group{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.form-group label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px}.form-control{padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:13.5px;color:var(--text);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s;width:100%}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1a6daf1f}textarea.form-control{resize:vertical;min-height:80px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.form-check{display:flex;align-items:center;gap:8px}.form-check input[type=checkbox]{width:16px;height:16px;cursor:pointer}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:6px;font-size:13.5px;font-weight:500;cursor:pointer;border:none;transition:background .15s,transform .1s,opacity .15s;white-space:nowrap}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover:not(:disabled){background:var(--accent-dark)}.btn-secondary{background:#e8edf2;color:var(--text)}.btn-secondary:hover:not(:disabled){background:#d0d9e4}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover:not(:disabled){background:#a31515}.btn-sm{padding:5px 10px;font-size:12px}.btn-icon{padding:6px;border-radius:6px}.table-wrapper{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}table{width:100%;border-collapse:collapse;font-size:13px}thead th{background:#f0f4f8;padding:10px 14px;text-align:left;font-weight:600;color:var(--text-muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;border-bottom:1px solid var(--border);white-space:nowrap}tbody tr{border-bottom:1px solid #f0f4f8;transition:background .1s}tbody tr:last-child{border-bottom:none}tbody tr:nth-child(2n){background:#fafbfd}tbody tr:hover{background:#f0f6ff}tbody td{padding:10px 14px;color:var(--text);vertical-align:middle}.badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:20px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge-success{background:var(--success-bg);color:var(--success)}.badge-error{background:var(--error-bg);color:var(--error)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-info{background:#e3f2fd;color:#1565c0}.badge-default{background:#eceff1;color:#546e7a}.badge-accent{background:#e0f7f7;color:#066}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px}.modal-box{background:#fff;border-radius:10px;box-shadow:var(--shadow-md);width:100%;max-width:540px;max-height:90vh;overflow-y:auto;display:flex;flex-direction:column}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:16px;font-weight:600}.modal-close{background:none;border:none;font-size:20px;cursor:pointer;color:var(--text-muted);line-height:1}.modal-close:hover{color:var(--text)}.modal-body{padding:20px;flex:1}.modal-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .75s linear infinite;margin:0 auto}.spinner-sm{width:16px;height:16px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.spinner-wrapper{display:flex;align-items:center;justify-content:center;padding:32px}.toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:9999;pointer-events:none}.toast{padding:12px 18px;border-radius:8px;font-size:13.5px;font-weight:500;box-shadow:var(--shadow-md);animation:slideIn .25s ease;pointer-events:auto;min-width:240px;max-width:360px}.toast-success{background:var(--success);color:#fff}.toast-error{background:var(--error);color:#fff}@keyframes slideIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}.alert{padding:12px 16px;border-radius:var(--radius);font-size:13.5px;margin-bottom:16px}.alert-error{background:var(--error-bg);color:var(--error);border:1px solid #ffcdd2}.alert-success{background:var(--success-bg);color:var(--success);border:1px solid #c8e6c9}.alert-info{background:#e3f2fd;color:#1565c0;border:1px solid #bbdefb}.section{margin-bottom:28px}.section-title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px 16px;text-align:center;cursor:pointer;background:#fafbfd;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone-active{border-color:var(--primary);background:#f0f6ff}.empty-state{text-align:center;padding:32px;color:var(--text-muted);font-size:13.5px}.empty-state .empty-icon{font-size:36px;margin-bottom:8px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}.divider{border:none;border-top:1px solid var(--border);margin:20px 0}.result-box{background:#f8fafc;border:1px solid var(--border);border-radius:var(--radius);padding:14px;font-family:monospace;font-size:12px;white-space:pre-wrap;overflow-x:auto;max-height:320px;overflow-y:auto}.page-header{margin-bottom:24px}.page-header h1{font-size:22px;font-weight:700;color:var(--text)}.page-header p{color:var(--text-muted);font-size:13.5px;margin-top:4px}.flex{display:flex}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-center{display:flex;align-items:center;justify-content:center}.gap-8{gap:8px}.gap-12{gap:12px}.mb-16{margin-bottom:16px}.mt-16{margin-top:16px}@media (max-width: 768px){.sidebar{width:56px}.sidebar-logo .logo-text,.nav-link .nav-label,.sidebar-subtitle,.sidebar-footer{display:none}.two-col{grid-template-columns:1fr}.card-grid{grid-template-columns:1fr 1fr}}@media (max-width: 480px){.card-grid{grid-template-columns:1fr}.page-area{padding:16px}}