:root{--bg:#f0f2f5;--bg-card:#fff;--text:#333;--text-muted:#666;--text-light:#888;--border:#eee;--border-input:#ddd;--primary:#1a73e8;--primary-hover:#1557b0;--primary-bg:#e3f2fd;--primary-text:#1565c0;--danger:#e53935;--danger-hover:#c62828;--danger-bg:#fce4ec;--danger-text:#c62828;--success:#2e7d32;--success-hover:#1b5e20;--success-bg:#e8f5e9;--success-text:#2e7d32;--warning-bg:#fff3e0;--warning-text:#e65100;--sidebar-bg:#1a1a2e;--sidebar-hover:#16213e;--sidebar-active:#64b5f6;--topbar-bg:#1a1a2e;--shadow:0 1px 3px #00000014;--shadow-lg:0 2px 8px #0000001a;--th-bg:#f8f9fa;--hover-row:#f5f8ff;--highlight:#e3f2fd}[data-theme=dark]{--bg:#121212;--bg-card:#1e1e1e;--text:#e0e0e0;--text-muted:#aaa;--text-light:#888;--border:#333;--border-input:#444;--primary:#64b5f6;--primary-hover:#42a5f5;--primary-bg:#1a2a3a;--primary-text:#90caf9;--danger:#ef5350;--danger-hover:#e53935;--danger-bg:#3a1a1a;--danger-text:#ef9a9a;--success:#66bb6a;--success-hover:#43a047;--success-bg:#1a2e1a;--success-text:#a5d6a7;--warning-bg:#2e2a1a;--warning-text:#ffb74d;--sidebar-bg:#0d0d1a;--sidebar-hover:#1a1a2e;--sidebar-active:#64b5f6;--topbar-bg:#0d0d1a;--shadow:0 1px 3px #0000004d;--shadow-lg:0 2px 8px #0006;--th-bg:#252525;--hover-row:#252525;--highlight:#1a2a3a}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Ubuntu,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-page{flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.login-form{background:var(--bg-card);box-shadow:var(--shadow-lg);border-radius:12px;width:100%;max-width:380px;padding:2rem}.login-form h2{text-align:center;color:var(--primary);margin-bottom:1.5rem}.login-form input{border:1px solid var(--border-input);background:var(--bg);width:100%;color:var(--text);border-radius:6px;margin-bottom:.75rem;padding:.75rem;font-size:.95rem}.login-form button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;padding:.75rem;font-size:1rem}.login-form button:hover{background:var(--primary-hover)}.error{background:var(--danger-bg);color:var(--danger-text);border-radius:6px;margin-bottom:.75rem;padding:.5rem .75rem;font-size:.9rem}.success-msg{background:var(--success-bg);color:var(--success-text);border-radius:6px;margin-bottom:.75rem;padding:.5rem .75rem;font-size:.9rem}.app-shell{flex-direction:column;min-height:100vh;display:flex}.top-bar{background:var(--topbar-bg);color:#fff;z-index:10;flex-shrink:0;justify-content:space-between;align-items:center;height:52px;padding:0 1rem;display:flex}.top-bar-left,.top-bar-right{align-items:center;gap:.75rem;display:flex}.brand{color:var(--sidebar-active);font-size:1.1rem;font-weight:700}.toggle-btn{color:#ccc;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:.25rem .5rem;font-size:1.2rem}.toggle-btn:hover{background:var(--sidebar-hover);color:#fff}.user-info{color:#ccc;font-size:.85rem}.role-badge{background:var(--sidebar-hover);color:var(--sidebar-active);text-transform:capitalize;border-radius:3px;padding:.1rem .4rem;font-size:.7rem}.theme-toggle{color:#ccc;cursor:pointer;background:0 0;border:1px solid #555;border-radius:4px;padding:.2rem .5rem;font-size:.85rem}.theme-toggle:hover{background:var(--sidebar-hover);color:#fff}.app-body{flex:1;display:flex;overflow:hidden}.sidebar{background:var(--sidebar-bg);flex-direction:column;flex-shrink:0;width:220px;padding:.5rem 0;transition:width .2s;display:flex;overflow:hidden}.sidebar.collapsed{width:64px}.sidebar .nav-item{color:#ccc;white-space:nowrap;cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:.75rem;width:100%;padding:.6rem 1rem;font-size:.9rem;text-decoration:none;display:flex;position:relative}.sidebar .nav-item:hover{background:var(--sidebar-hover);color:var(--sidebar-active)}.sidebar .nav-item.active{background:var(--sidebar-hover);color:var(--sidebar-active);border-right:3px solid var(--sidebar-active)}.sidebar .nav-icon{text-align:center;flex-shrink:0;width:24px;font-size:1.1rem}.sidebar .nav-label{transition:opacity .2s}.sidebar.collapsed .nav-label{opacity:0;width:0;overflow:hidden}.sidebar.collapsed .nav-item{justify-content:center;padding:.6rem 0}.sidebar.collapsed .nav-item:hover:after{content:attr(title);color:#fff;white-space:nowrap;z-index:20;pointer-events:none;background:#333;border-radius:4px;padding:.3rem .6rem;font-size:.8rem;position:absolute;left:64px}.sidebar-spacer{flex:1}.collapse-toggle{border-top:1px solid #333;margin-top:auto}.main-content{flex-direction:column;flex:1;height:calc(100vh - 52px);padding:1.5rem;display:flex;overflow-y:auto}.main-content>:first-child{flex:1}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:1rem;display:flex}.page-header h2{font-size:1.4rem}table{border-collapse:collapse;background:var(--bg-card);width:100%;box-shadow:var(--shadow);border-radius:8px;overflow:hidden}th,td{text-align:left;border-bottom:1px solid var(--border);padding:.6rem .75rem;font-size:.9rem}th{background:var(--th-bg);color:var(--text-muted);font-weight:600}tr:hover{background:var(--hover-row)}button,.btn{cursor:pointer;border:none;border-radius:6px;padding:.4rem .8rem;font-size:.85rem;transition:background .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-secondary{background:var(--border);color:var(--text)}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:var(--success-hover)}.btn-warning{color:#fff;background:#e65100}.btn-sm{padding:.25rem .5rem;font-size:.8rem}input,select,textarea{border:1px solid var(--border-input);background:var(--bg);color:var(--text);border-radius:6px;padding:.5rem;font-size:.9rem}textarea{font-family:inherit}.filters{flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1rem;display:flex}.month-nav{align-items:center;gap:.35rem;display:inline-flex}.month-nav-arrow{background:var(--card-bg);border:1px solid var(--border);cursor:pointer;border-radius:4px;padding:.25rem .5rem;font-size:.85rem;line-height:1}.month-nav-arrow:hover{background:var(--primary);color:#fff}.badge{border-radius:12px;padding:.15rem .5rem;font-size:.75rem;font-weight:600;display:inline-block}.badge-active,.badge-occupied{background:var(--success-bg);color:var(--success-text)}.badge-warning,.badge-draft{background:var(--warning-bg);color:var(--warning-text)}.badge-inactive,.badge-empty{background:var(--danger-bg);color:var(--danger-text)}.badge-published{background:var(--primary-bg);color:var(--primary-text)}.badge-flat{background:var(--primary-bg);color:var(--primary-text);margin:0 .15rem}.badge-sm{padding:.1rem .35rem;font-size:.65rem}.modal-overlay{z-index:100;background:#00000080;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.modal{background:var(--bg-card);border-radius:12px;min-width:400px;max-width:90vw;max-height:90vh;padding:1.5rem;position:relative;overflow-y:auto}.modal h3{cursor:grab;-webkit-user-select:none;user-select:none;margin-bottom:1rem}.modal label{color:var(--text-muted);margin-bottom:.25rem;font-size:.85rem;font-weight:600;display:block}.modal input,.modal select,.modal textarea{width:100%;margin-bottom:.75rem}.modal input[type=checkbox],.modal input[type=radio]{width:auto;margin-bottom:0}.modal-actions{justify-content:flex-end;gap:.5rem;margin-top:1rem;display:flex}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.stat-card{background:var(--bg-card);box-shadow:var(--shadow);border-radius:12px;padding:1.25rem}.stat-card .value{color:var(--primary);font-size:1.8rem;font-weight:700}.stat-card .label{font-weight:600}.stat-card .sub{color:var(--text-light);font-size:.8rem}.flat-checks{flex-wrap:wrap;gap:.5rem;margin-bottom:.75rem;display:flex}.flat-checks label{border:1px solid var(--border-input);cursor:pointer;border-radius:6px;align-items:center;gap:.3rem;padding:.3rem .6rem;font-size:.85rem;display:flex}.flat-checks label.checked{background:var(--primary-bg);border-color:var(--primary)}.bill-summary{background:var(--bg-card);box-shadow:var(--shadow);border-radius:12px;margin-bottom:1rem;padding:1.25rem}.bill-month-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.75rem;margin-bottom:1rem;display:grid}.bill-month-card{background:var(--bg-card);box-shadow:var(--shadow);cursor:pointer;text-align:center;border:2px solid #0000;border-radius:10px;padding:1rem;transition:border-color .15s}.bill-month-card:hover{border-color:var(--primary)}.bill-month-card.selected{border-color:var(--primary);background:var(--hover-row)}.resident-page{flex-direction:column;max-width:900px;min-height:100vh;margin:0 auto;padding:1.5rem;display:flex}.resident-page>.app-footer{margin-top:auto}.resident-header{text-align:center;margin-bottom:1.5rem}.resident-header h1{color:var(--primary);font-size:1.5rem}.resident-header p{color:var(--text-muted);font-size:.9rem}.due-card{background:var(--bg-card);box-shadow:var(--shadow-lg);text-align:center;border-radius:16px;margin-bottom:1.5rem;padding:2rem}.due-card .amount{font-size:2.5rem;font-weight:700}.due-card .amount.paid{color:var(--success)}.due-card .amount.unpaid{color:var(--danger)}.due-card .amount.credit{color:var(--primary)}.due-card .label{color:var(--text-muted);margin-top:.25rem;font-size:.9rem}.due-breakdown{grid-template-columns:repeat(3,1fr);gap:.75rem;margin:1.25rem 0 0;display:grid}.due-breakdown .item{text-align:center}.due-breakdown .item .val{font-size:1.2rem;font-weight:600}.due-breakdown .item .lbl{color:var(--text-light);font-size:.8rem}.upi-box{background:var(--success-bg);text-align:center;border-radius:10px;margin-bottom:1rem;padding:1rem}.upi-box .upi{color:var(--success);font-size:1.1rem;font-weight:600}.contact-box{background:var(--th-bg);color:var(--text-muted);border-radius:10px;margin-top:1.5rem;padding:1rem;font-size:.85rem}.highlight-col{background:var(--highlight)!important}.import-section{background:var(--bg-card);box-shadow:var(--shadow);border-radius:12px;margin-bottom:1rem;padding:1.5rem}.report-tabs{border-bottom:2px solid var(--border);gap:.25rem;margin-bottom:1.5rem;display:flex;overflow:auto hidden}.report-tab{cursor:pointer;color:var(--text-muted);white-space:nowrap;background:0 0;border:1px solid #0000;border-bottom:none;border-radius:6px 6px 0 0;margin-bottom:-2px;padding:.6rem 1.2rem;font-size:.9rem;transition:background .15s}.report-tab:hover{background:var(--card-bg);color:var(--text)}.report-tab.active{background:var(--card-bg);color:var(--primary);border-color:var(--border);font-weight:600}.report-section{background:var(--bg-card);box-shadow:var(--shadow);border-radius:12px;margin-bottom:1rem;padding:1.25rem}.drop-zone{border:2px dashed var(--border-input);text-align:center;cursor:pointer;color:var(--text-light);border-radius:10px;padding:2rem;transition:border-color .15s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);color:var(--primary)}.text-green{color:var(--success)!important}.text-red{color:var(--danger)!important}.text-blue{color:var(--primary)!important}.fab-refresh{background:var(--primary);color:#fff;cursor:pointer;width:44px;height:44px;box-shadow:var(--shadow-lg);z-index:50;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.3rem;display:flex;position:fixed;bottom:1.5rem;right:1.5rem}.fab-refresh:hover{background:var(--primary-hover)}@media (width<=768px){.top-bar{padding:0 .5rem}.brand{font-size:.9rem}.user-info{display:none}.main-content{padding:.75rem}.sidebar{z-index:20;position:fixed;top:52px;bottom:0;left:0}.sidebar.collapsed{width:0;padding:0}.filters{flex-direction:column;align-items:stretch}.filters input,.filters select{width:100%;min-width:auto}.modal{width:95vw;min-width:auto;padding:1rem}.stats-grid{grid-template-columns:repeat(2,1fr);gap:.5rem}.stat-card{padding:.75rem}.stat-card .value{font-size:1.3rem}.bill-month-grid{grid-template-columns:repeat(2,1fr)}.page-header{flex-direction:column;align-items:flex-start}.page-header h2{font-size:1.2rem}table{font-size:.8rem;display:block;overflow-x:auto}th,td{white-space:nowrap;padding:.4rem .5rem}.due-card{padding:1.25rem}.due-card .amount{font-size:1.8rem}.due-breakdown{grid-template-columns:repeat(3,1fr);gap:.5rem}.due-breakdown .item .val{font-size:1rem}.resident-page{padding:.75rem}.resident-header h1{font-size:1.2rem}.flat-checks{gap:.3rem}.flat-checks label{padding:.2rem .4rem;font-size:.8rem}}@media (width<=480px){.stats-grid,.bill-month-grid,.due-breakdown{grid-template-columns:1fr}}.app-footer{text-align:center;color:var(--text-light);padding:1.5rem 1rem .75rem;font-size:.8rem}
