:root{--bg:#f4f5f7;--surface:#fff;--border:#e2e5ea;--text:#1c2230;--text-muted:#6b7280;--primary:#2452d9;--primary-hover:#1c3fad;--danger:#d9342b;--danger-hover:#b5281f;--success:#15803d;--warn:#b45309;--radius:8px;--sidebar-width:220px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);color:#cfd4e0;background:#151a26;flex-shrink:0;padding:20px 0}.sidebar h1{color:#fff;border-bottom:1px solid #262c3b;margin:0 0 8px;padding:0 20px 16px;font-size:16px}.sidebar nav a{color:#cfd4e0;padding:10px 20px;font-size:14px;text-decoration:none;display:block}.sidebar nav a:hover{color:#fff;background:#1f2535}.sidebar nav a.active{background:var(--primary);color:#fff}.sidebar .user-box{color:#9aa1b4;border-top:1px solid #262c3b;margin-top:24px;padding:12px 20px;font-size:12px}.main{flex:1;min-width:0;padding:28px 32px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.page-header h2{margin:0;font-size:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:20px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border);padding:10px 12px;font-size:13px}th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:11px;font-weight:600}tbody tr:hover{background:#fafbfc}.btn{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;align-items:center;gap:6px;padding:8px 14px;font-size:13px;display:inline-flex}.btn:hover{background:#f0f1f3}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-sm{padding:4px 10px;font-size:12px}.badge{text-transform:uppercase;border-radius:999px;padding:3px 10px;font-size:11px;font-weight:600;display:inline-block}.badge-draft{color:#92400e;background:#fef3c7}.badge-processing{color:#1e40af;background:#dbeafe}.badge-closed{color:#166534;background:#dcfce7}.form-group{margin-bottom:14px}.form-group label{color:var(--text-muted);margin-bottom:4px;font-size:12px;font-weight:600;display:block}.form-row{gap:12px;display:flex}.form-row .form-group{flex:1}input,select,textarea{border:1px solid var(--border);border-radius:var(--radius);width:100%;color:var(--text);background:#fff;padding:8px 10px;font-family:inherit;font-size:13px}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}.alert{border-radius:var(--radius);margin-bottom:14px;padding:10px 14px;font-size:13px}.alert-error{color:#991b1b;background:#fee2e2}.alert-info{color:#075985;background:#e0f2fe}.login-screen{background:#151a26;justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:#fff;border-radius:12px;width:340px;padding:32px}.login-card h1{margin:0 0 4px;font-size:20px}.login-card p{color:var(--text-muted);margin:0 0 24px;font-size:13px}.password-field{position:relative}.password-field input{padding-right:38px}.password-toggle{color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.password-toggle:hover{color:var(--text)}.muted{color:var(--text-muted)}.text-right{text-align:right}.flex{align-items:center;gap:8px;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.section-title{text-transform:uppercase;color:var(--text-muted);margin:24px 0 10px;font-size:13px;font-weight:700}.section-title:first-child{margin-top:0}.empty-state{color:var(--text-muted);padding:16px 0;font-size:13px}.image-grid{flex-wrap:wrap;gap:10px;display:flex}.image-grid img{object-fit:cover;border-radius:var(--radius);border:1px solid var(--border);width:110px;height:110px}.tab-bar{border-bottom:1px solid var(--border);gap:4px;margin-bottom:20px;display:flex}.tab-bar button{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 16px;font-size:13px}.tab-bar button.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.user-box-row{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.notification-bell{position:relative}.notification-bell-trigger{color:#cfd4e0;cursor:pointer;background:0 0;border:none;padding:4px;font-size:16px;position:relative}.notification-badge{background:var(--danger);color:#fff;text-align:center;border-radius:999px;min-width:14px;padding:2px 4px;font-size:10px;line-height:1;position:absolute;top:-2px;right:-2px}.notification-panel{background:var(--surface);width:300px;max-height:360px;color:var(--text);border-radius:var(--radius);border:1px solid var(--border);z-index:50;position:absolute;bottom:calc(100% + 8px);left:0;overflow-y:auto;box-shadow:0 8px 24px #00000040}.notification-panel-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 12px;font-size:12px;font-weight:600;display:flex}.notification-empty{color:var(--text-muted);padding:16px 12px;font-size:12px}.notification-list{margin:0;padding:0;list-style:none}.notification-list li a{border-bottom:1px solid var(--border);color:var(--text);padding:10px 12px;font-size:12px;text-decoration:none;display:block}.notification-list li:last-child a{border-bottom:none}.notification-list li.unread a{background:#eef2ff;font-weight:600}.notification-list li a:hover{background:#f4f5f7}.notification-time{color:var(--text-muted);margin-top:2px;font-size:11px}