:root{--primary: #2563eb;--primary-hover: #1d4ed8;--success: #16a34a;--warning: #d97706;--danger: #dc2626;--info: #2563eb;--bg: #f8fafc;--bg-card: #ffffff;--bg-sidebar: #1e293b;--text: #1e293b;--text-secondary: #64748b;--text-light: #94a3b8;--border: #e2e8f0;--border-focus: #2563eb;--radius: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1), 0 4px 6px rgba(0, 0, 0, .05)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-sm{padding:6px 12px;font-size:13px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text)}.form-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;transition:border-color .15s ease}.form-input:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #2563eb1a}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.alert{padding:12px 16px;border-radius:var(--radius);font-size:14px;margin-bottom:16px}.alert-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.alert-success{background:#f0fdf4;color:var(--success);border:1px solid #bbf7d0}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}table{width:100%;border-collapse:collapse}table th,table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}table th{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);background:var(--bg)}table tr:hover td{background:#f1f5f9}