:root{--primary:#2563eb;--primary-dark:#1d4ed8;--secondary:#64748b;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--bg:#f8fafc;--surface:#ffffff;--border:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--shadow:rgba(0,0,0,0.1);--shadow-lg:rgba(0,0,0,0.15)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 1px 3px var(--shadow);display:none}.app-header.show{display:block}.header-content{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;max-width:1200px;margin:0 auto}.brand{display:flex;align-items:center;gap:12px}.brand-logo{width:40px;height:40px;border-radius:10px;object-fit:cover;border:2px solid var(--border)}.brand-title{font-weight:700;font-size:16px;line-height:1.2}.brand-subtitle{color:var(--text-muted);font-size:12px;line-height:1.2}.header-actions{display:flex;align-items:center;gap:8px}.btn{border:none;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:500;cursor:pointer;transition:all 0.2s ease;display:inline-flex;align-items:center;gap:6px;user-select:none}.btn:active{transform:scale(0.98)}.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--primary);color:white;box-shadow:0 2px 8px rgba(37,99,235,0.3)}.btn-primary:hover:not(:disabled){background:var(--primary-dark);box-shadow:0 4px 12px rgba(37,99,235,0.4)}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg)}.icon-btn{width:40px;height:40px;border:none;border-radius:10px;background:transparent;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease}.icon-btn:hover:not(:disabled){background:var(--bg)}.icon-btn:active{transform:scale(0.95)}.icon-btn:disabled{opacity:0.5;cursor:not-allowed}.filters-section{padding:16px;max-width:1200px;margin:0 auto;width:100%;display:none}.filters-section.show{display:block}.search-bar{position:relative;margin-bottom:12px}.search-bar svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-bar input{width:100%;padding:12px 12px 12px 44px;border:1px solid var(--border);border-radius:12px;font-size:15px;background:var(--surface);transition:all 0.2s ease}.search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}.filter-chips{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.filter-select{padding:10px 14px;border:1px solid var(--border);border-radius:20px;font-size:14px;background:var(--surface);color:var(--text);cursor:pointer;transition:all 0.2s ease;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filter-select:hover{border-color:var(--primary)}.filter-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}.filter-toggle{padding:10px 14px;border:1px solid var(--border);border-radius:20px;font-size:14px;background:var(--surface);color:var(--text);cursor:pointer;white-space:nowrap;transition:all 0.2s ease;display:flex;align-items:center;justify-content:center;gap:6px;grid-column:span 2}.filter-toggle:hover{border-color:var(--primary)}.filter-toggle.active{background:var(--primary);color:white;border-color:var(--primary)}.member-list{flex:1;padding:0 16px 80px;max-width:1200px;margin:0 auto;width:100%}.member-list:has(.welcome-page){display:flex;align-items:center;justify-content:center;padding:0}.member-card{background:var(--surface);border-radius:16px;padding:16px;margin-bottom:12px;border:1px solid var(--border);transition:all 0.2s ease;animation:slideIn 0.3s ease}@keyframes slideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.member-card:active{transform:scale(0.99)}.member-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;flex-wrap:wrap;gap:8px}.member-info{flex:1;min-width:0}.member-header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.member-more-btn{width:32px;height:32px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;flex-shrink:0}.member-more-btn:hover{background:var(--bg);border-color:var(--primary);color:var(--primary)}.member-more-btn:active{transform:scale(0.95)}.member-name{font-weight:600;font-size:16px;margin-bottom:4px;color:var(--text)}.member-details{font-size:13px;color:var(--text-muted);line-height:1.5}.member-badge{padding:4px 10px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}.member-badge.member{background:#dcfce7;color:#166534}.member-badge.non-member{background:#fef3c7;color:#92400e}.member-badge.rented{background:#fef9c3;color:#854d0e}.payment-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin-top:12px;max-height:500px;overflow:hidden;transition:max-height 0.3s ease}.payment-grid.collapsed{max-height:0;margin-top:0}.payment-cell{aspect-ratio:1;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:10px;font-weight:600;cursor:pointer;transition:all 0.2s ease;border:1px solid var(--border);position:relative}.payment-cell .month-label{font-size:9px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.3px}.payment-cell .amount{font-size:11px;font-weight:600;margin-top:2px}.payment-cell.paid{background:#dcfce7;color:#166534;border-color:#86efac}.payment-cell.pending{background:var(--bg);color:var(--text-muted)}.payment-cell:active{transform:scale(0.95)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;text-align:center;color:var(--text-muted)}.empty-state svg{margin-bottom:16px;opacity:0.5}.empty-state p{font-size:15px}.welcome-page{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 20px;text-align:center;height:100vh;max-width:600px;margin:0 auto}.welcome-logo{width:64px;height:64px;border-radius:12px;object-fit:cover;margin-bottom:16px;border:2px solid var(--border);box-shadow:0 2px 8px var(--shadow)}.welcome-icon{width:64px;height:64px;margin-bottom:32px;color:var(--primary)}.welcome-title{font-size:24px;font-weight:700;margin-bottom:6px;line-height:1.2;color:var(--text)}.welcome-subtitle{font-size:14px;font-weight:500;margin-bottom:20px;color:var(--text-muted);letter-spacing:0.3px}.welcome-description{font-size:14px;line-height:1.6;margin-bottom:24px;color:var(--text)}.welcome-info{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;width:100%}.welcome-info-item{display:flex;align-items:flex-start;gap:10px;text-align:left;font-size:13px;color:var(--text);line-height:1.5}.welcome-info-item svg{flex-shrink:0;color:var(--primary);margin-top:1px;width:18px;height:18px}.welcome-cta{background:var(--primary);color:white;padding:12px 28px;border-radius:12px;font-size:15px;font-weight:600;border:none;cursor:pointer;box-shadow:0 2px 8px rgba(37,99,235,0.3);transition:all 0.2s ease;display:inline-flex;align-items:center;gap:8px}.welcome-cta:hover{background:var(--primary-dark);box-shadow:0 4px 12px rgba(37,99,235,0.4);transform:translateY(-1px)}.welcome-cta:active{transform:translateY(0)}.welcome-note{font-size:12px;color:var(--text-muted);margin-top:16px;font-style:italic}.fab{position:fixed;right:20px;bottom:20px;width:56px;height:56px;border-radius:50%;background:var(--primary);color:white;border:none;box-shadow:0 4px 16px var(--shadow-lg);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.3s ease;z-index:90}.fab:hover{transform:scale(1.1);box-shadow:0 6px 20px var(--shadow-lg)}.fab:active{transform:scale(0.95)}.export-menu{position:fixed;inset:0;z-index:200;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn 0.2s ease}.export-menu::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,0.4);backdrop-filter:blur(2px)}.export-menu-content{position:relative;background:var(--surface);border-radius:20px 20px 0 0;padding:24px;width:100%;max-width:500px;animation:slideUp 0.3s ease}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}.export-option{width:100%;padding:16px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text);font-size:15px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:12px;transition:all 0.2s ease;margin-bottom:12px}.export-option:hover{background:var(--bg);border-color:var(--primary)}.export-option:active{transform:scale(0.98)}.modal{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn 0.2s ease}.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px)}.modal-content{position:relative;background:var(--surface);border-radius:20px;width:100%;max-width:500px;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;animation:scaleIn 0.3s ease}@keyframes scaleIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--border)}.modal-header h2{font-size:18px;font-weight:600}.modal-body{flex:1;overflow-y:auto;padding:20px}.payment-member-info{background:var(--bg);padding:12px;border-radius:12px;margin-bottom:20px}.payment-member-info .name{font-weight:600;margin-bottom:4px}.payment-member-info .details{font-size:13px;color:var(--text-muted)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:6px}.form-input{width:100%;padding:12px;border:1px solid var(--border);border-radius:10px;font-size:15px;background:var(--surface);transition:all 0.2s ease}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}.modal-footer{display:flex;gap:12px;padding:20px;border-top:1px solid var(--border)}.modal-footer .btn{flex:1}.member-details-content{display:flex;flex-direction:column;gap:24px}.detail-section{display:flex;flex-direction:column;gap:12px}.detail-section-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px;padding-bottom:8px;border-bottom:1px solid var(--border)}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border)}.detail-row:last-child{border-bottom:none}.detail-label{font-size:13px;font-weight:500;color:var(--text-muted)}.detail-value{font-size:14px;font-weight:500;color:var(--text);text-align:right}.payment-history{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.payment-history-row{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg)}.payment-history-row.paid{background:#dcfce7;border-color:#86efac}.payment-month{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase}.payment-history-row.paid .payment-month{color:#166534}.payment-value{font-size:13px;font-weight:600;color:var(--text)}.payment-history-row.paid .payment-value{color:#166534}.payment-history-row.pending .payment-value{color:var(--text-muted)}.btn-danger{background:var(--danger);color:white}.btn-danger:hover:not(:disabled){background:#dc2626}.toast{position:fixed;top:80px;left:50%;transform:translateX(-50%);background:var(--text);color:white;padding:12px 20px;border-radius:12px;box-shadow:0 4px 16px var(--shadow-lg);font-size:14px;font-weight:500;z-index:400;animation:slideDown 0.3s ease;max-width:calc(100% - 40px)}@keyframes slideDown{from{opacity:0;transform:translate(-50%,-20px)}to{opacity:1;transform:translate(-50%,0)}}.toast.error{background:var(--danger)}.toast.success{background:var(--success)}.loader{position:fixed;inset:0;z-index:500;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,0.9);backdrop-filter:blur(4px)}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.export-table{width:100%;border-collapse:collapse;font-size:11px;background:white}.export-table th,.export-table td{border:1px solid #ddd;padding:6px 4px;text-align:center}.export-table th{background:#f5f5f5;font-weight:600;font-size:10px}.export-table td:first-child{text-align:left;font-weight:500}.export-table .paid-cell{background:#dcfce7;color:#166534;font-weight:600}.export-table .pending-cell{background:#fff;color:#999}.hidden{display:none !important}@media (min-width:768px){.filter-chips{grid-template-columns:repeat(3,1fr)}.filter-toggle{grid-column:span 3}.member-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.member-card{margin-bottom:0}.payment-grid{grid-template-columns:repeat(12,1fr)}}@media (min-width:1024px){.header-content{padding:16px 24px}.filters-section{padding:20px 24px}.filter-chips{grid-template-columns:repeat(5,1fr)}.filter-toggle{grid-column:5}.member-list{padding:0 24px 80px}}