:root{--bg-app: #e8eaed;--bg-sidebar: #1e293b;--bg-sidebar-hover: #334155;--bg-header: #f1f5f9;--bg-tab: #cbd5e1;--bg-tab-active: #ffffff;--border: #94a3b8;--text: #0f172a;--text-muted: #64748b;--accent: #2563eb;--accent-hover: #1d4ed8;--danger: #dc2626;--radius: 4px;--font: "Segoe UI", "Malgun Gothic", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;font-family:var(--font);font-size:14px;color:var(--text);background:var(--bg-app)}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:14px}.app-root{min-height:100%}.login-page{min-height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#1e3a5f,#0f172a)}.login-card{width:100%;max-width:380px;padding:2rem;background:#fff;border-radius:8px;box-shadow:0 16px 48px #00000059}.login-card h1{margin:0 0 .25rem;font-size:1.5rem}.login-card p.sub{margin:0 0 1.5rem;color:var(--text-muted);font-size:13px}.form-field{margin-bottom:1rem}.form-field label{display:block;margin-bottom:.35rem;font-weight:600;font-size:12px;color:var(--text-muted)}.form-field input{width:100%;padding:.5rem .65rem;border:1px solid var(--border);border-radius:var(--radius)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.45rem 1rem;border-radius:var(--radius);border:1px solid transparent;font-weight:600;font-size:13px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--text-muted);border-color:var(--border)}.btn-ghost:hover{background:var(--bg-header)}.error-msg{color:var(--danger);font-size:13px;margin-top:.75rem}.shell{display:flex;height:100vh;overflow:hidden}.shell-sidebar{width:220px;flex-shrink:0;background:var(--bg-sidebar);color:#e2e8f0;display:flex;flex-direction:column}.shell-brand{padding:14px 16px;font-weight:700;font-size:15px;letter-spacing:-.02em;border-bottom:1px solid rgba(255,255,255,.08);color:#fff}.shell-nav{flex:1;overflow-y:auto;padding:8px 0}.nav-item{display:block;width:100%;text-align:left;padding:10px 16px;border:none;background:transparent;color:#cbd5e1;font-size:13px}.nav-item:hover{background:var(--bg-sidebar-hover);color:#fff}.nav-item-sub{padding-left:30px;font-size:12px}.nav-item-parent-label{display:flex;align-items:center;justify-content:space-between;width:100%}.nav-item-caret{font-size:11px;opacity:.9}.shell-main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-app)}.shell-toolbar{display:flex;align-items:center;gap:12px;padding:8px 12px;background:var(--bg-header);border-bottom:1px solid var(--border);flex-shrink:0}.shell-toolbar label{font-size:12px;color:var(--text-muted);font-weight:600}.shell-toolbar select{padding:4px 8px;border-radius:var(--radius);border:1px solid var(--border);min-width:160px}.toolbar-spacer{flex:1}.toolbar-user{font-size:12px;color:var(--text-muted)}.tab-strip{display:flex;align-items:flex-end;gap:2px;padding:4px 8px 0;background:var(--bg-header);border-bottom:1px solid var(--border);overflow-x:auto;flex-shrink:0}.tab{display:flex;align-items:center;gap:6px;max-width:200px;padding:8px 10px 8px 12px;background:var(--bg-tab);border:1px solid var(--border);border-bottom:none;border-radius:var(--radius) var(--radius) 0 0;font-size:12px;color:var(--text);white-space:nowrap}.tab.active{background:var(--bg-tab-active);font-weight:600;border-bottom:1px solid var(--bg-tab-active);margin-bottom:-1px;z-index:1}.tab-title{overflow:hidden;text-overflow:ellipsis}.tab-close{display:flex;align-items:center;justify-content:center;width:18px;height:18px;padding:0;border:none;border-radius:2px;background:transparent;color:var(--text-muted);font-size:14px;line-height:1}.tab-close:hover{background:#00000014;color:var(--text)}.tab-content{flex:1;overflow:auto;padding:16px;background:var(--bg-tab-active)}.tab-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px}.panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}.panel h2{margin:0 0 12px;font-size:16px}.table-wrap{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th,.data-table td{padding:8px 10px;text-align:left;border-bottom:1px solid #e2e8f0}.data-table th{background:#f8fafc;font-weight:600;color:var(--text-muted);font-size:11px;text-transform:uppercase;letter-spacing:.04em}.pager{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--text-muted)}.hint{font-size:12px;color:var(--text-muted);margin-top:8px}.success-banner{background:#ecfdf5;border:1px solid #6ee7b7;color:#065f46;padding:8px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:12px}.data-table tbody tr.row-clickable{cursor:pointer}.data-table tbody tr.row-clickable:hover{background:#f1f5f9}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2000;display:flex;align-items:center;justify-content:center;padding:16px;background:#0f172a73}.modal-dialog{width:100%;max-width:720px;max-height:min(90vh,900px);display:flex;flex-direction:column;background:#fff;border-radius:8px;box-shadow:0 20px 50px #00000040;border:1px solid var(--border)}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.modal-header h3{margin:0;font-size:16px}.modal-body{padding:16px;overflow-y:auto;font-size:13px}.modal-section{margin-bottom:20px}.modal-section h4{margin:0 0 8px;font-size:12px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.modal-dl{display:grid;grid-template-columns:120px 1fr;gap:6px 12px;margin:0}.modal-dl dt{color:var(--text-muted);font-weight:600}.modal-dl dd{margin:0}