:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-bg: #f3f4f6;--secondary-text: #374151;--border-color: #e5e7eb;--text-color: #111827;--text-muted: #6b7280;--danger-color: #dc2626;--danger-bg: #fee2e2;--success-color: #059669;--success-bg: #d1fae5;--warning-color: #d97706;--warning-bg: #fef3c7;--card-shadow: 0 1px 3px rgba(0,0,0,.1);--card-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, .1);--radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text-color);background:#f9fafb;margin:0;padding:0;line-height:1.5}.page-container{max-width:1200px;margin:0 auto;padding-left:1rem;padding-right:1rem}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.page-title{margin:0;font-size:2rem;color:var(--text-color);line-height:1.2}.page-subtitle{color:var(--text-muted);margin-top:.5rem;font-size:1.1rem}.grid-layout,.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.grid-2-col{display:grid;grid-template-columns:1fr 2fr;gap:2rem}@media(max-width:900px){.grid-2-col{grid-template-columns:1fr}}.card{background:#fff;border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--card-shadow);transition:box-shadow .2s ease-in-out,transform .2s;display:flex;flex-direction:column;text-decoration:none;color:inherit}.card:hover{box-shadow:var(--card-shadow-hover)}a.card:hover{transform:translateY(-2px);border-color:#d1d5db}.card h3{margin-top:0;font-size:1.25rem;color:var(--text-color);margin-bottom:.5rem}.card p{color:var(--text-muted);flex-grow:1;margin-bottom:1rem;line-height:1.5}.action-btn{background:var(--primary-color);color:#fff;border:none;padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:500;text-align:center;text-decoration:none;display:inline-block;transition:background-color .2s}.action-btn:hover{background:var(--primary-hover);color:#fff}.action-btn:disabled{background:#9ca3af;cursor:not-allowed;opacity:.7}.action-btn.w-full{width:100%}.action-btn.secondary{background:#fff;color:var(--secondary-text);border:1px solid var(--border-color)}.action-btn.secondary:hover{background:var(--secondary-bg)}.action-btn.danger,.btn-danger{background:var(--danger-bg);color:#991b1b;border:1px solid #fecaca}.action-btn.danger:hover,.btn-danger:hover{background:#fecaca}.action-btn.success{background:var(--success-color)}.action-btn.success:hover{background:#047857}.badge{display:inline-block;padding:.25rem .5rem;border-radius:9999px;font-size:.75rem;font-weight:600;text-transform:uppercase;vertical-align:middle}.badge-admin{background:#fee2e2;color:#991b1b}.badge-member{background:#dbeafe;color:#1e40af}.badge-prepaid{background:#fce7f3;color:#db2777}.badge-pending{background:#ffedd5;color:#c2410c}.badge-joined{background:#dcfce7;color:#166534}.input-field{padding:.6rem;border:1px solid var(--border-color);border-radius:6px;width:100%;box-sizing:border-box;font-size:1rem}.input-group{display:flex;gap:.5rem}.text-danger{color:#dc2626}.text-success{color:#059669}.text-muted{color:var(--text-muted)}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.link{color:var(--primary-color);text-decoration:none}.link:hover{text-decoration:underline}.alert-card{background:#fffbeb;border:1px solid #fcd34d;border-radius:var(--radius);padding:1rem;margin-bottom:2rem}.meta-row{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-muted);margin-top:.5rem;border-top:1px solid var(--secondary-bg);padding-top:.5rem}.section-title{font-size:1.5rem;margin-bottom:1rem;color:var(--secondary-text);border-bottom:2px solid var(--secondary-bg);padding-bottom:.5rem;margin-top:2rem}.data-table{width:100%;border-collapse:collapse;margin-bottom:1rem;font-size:.95rem}.data-table th,.data-table td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border-color)}.data-table th{background:var(--secondary-bg);color:var(--secondary-text);font-weight:600}.data-table tr:last-child td{border-bottom:none}.logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:inherit}.logo-text{font-weight:700;font-size:1.25rem;color:var(--text-color)}.badge-admin{background-color:var(--primary-bg);background-color:#eff6ff;color:var(--primary-color);font-size:.75rem;padding:.2rem .5rem;border-radius:99px;font-weight:600;border:1px solid var(--primary-color)}.action-btn.sm{font-size:.8rem;padding:.4rem .8rem}