: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 rgba(0,0,0,.08);--shadow-lg: 0 2px 8px rgba(0,0,0,.1);--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 rgba(0,0,0,.3);--shadow-lg: 0 2px 8px rgba(0,0,0,.4);--th-bg: #252525;--hover-row: #252525;--highlight: #1a2a3a}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.login-page{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.login-form{background:var(--bg-card);padding:2rem;border-radius:12px;box-shadow:var(--shadow-lg);width:100%;max-width:380px}.login-form h2{margin-bottom:1.5rem;text-align:center;color:var(--primary)}.login-form input{width:100%;padding:.75rem;margin-bottom:.75rem;border:1px solid var(--border-input);border-radius:6px;font-size:.95rem;background:var(--bg);color:var(--text)}.login-form button{width:100%;padding:.75rem;background:var(--primary);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:1rem}.login-form button:hover{background:var(--primary-hover)}.error{background:var(--danger-bg);color:var(--danger-text);padding:.5rem .75rem;border-radius:6px;margin-bottom:.75rem;font-size:.9rem}.success-msg{background:var(--success-bg);color:var(--success-text);padding:.5rem .75rem;border-radius:6px;margin-bottom:.75rem;font-size:.9rem}.app-shell{display:flex;flex-direction:column;min-height:100vh}.top-bar{display:flex;justify-content:space-between;align-items:center;height:52px;padding:0 1rem;background:var(--topbar-bg);color:#fff;flex-shrink:0;z-index:10}.top-bar-left,.top-bar-right{display:flex;align-items:center;gap:.75rem}.brand{font-size:1.1rem;font-weight:700;color:var(--sidebar-active)}.toggle-btn{background:none;border:none;color:#ccc;font-size:1.2rem;cursor:pointer;padding:.25rem .5rem;border-radius:4px}.toggle-btn:hover{background:var(--sidebar-hover);color:#fff}.user-info{font-size:.85rem;color:#ccc}.role-badge{background:var(--sidebar-hover);color:var(--sidebar-active);padding:.1rem .4rem;border-radius:3px;font-size:.7rem;text-transform:capitalize}.theme-toggle{background:none;border:1px solid #555;color:#ccc;padding:.2rem .5rem;border-radius:4px;cursor:pointer;font-size:.85rem}.theme-toggle:hover{background:var(--sidebar-hover);color:#fff}.app-body{display:flex;flex:1;overflow:hidden}.sidebar{width:220px;background:var(--sidebar-bg);display:flex;flex-direction:column;padding:.5rem 0;transition:width .2s ease;overflow:hidden;flex-shrink:0}.sidebar.collapsed{width:64px}.sidebar .nav-item{display:flex;align-items:center;gap:.75rem;padding:.6rem 1rem;color:#ccc;text-decoration:none;font-size:.9rem;white-space:nowrap;border:none;background:none;cursor:pointer;width:100%;text-align:left;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{font-size:1.1rem;width:24px;text-align:center;flex-shrink:0}.sidebar .nav-label{transition:opacity .2s ease}.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);position:absolute;left:64px;background:#333;color:#fff;padding:.3rem .6rem;border-radius:4px;font-size:.8rem;white-space:nowrap;z-index:20;pointer-events:none}.sidebar-spacer{flex:1}.collapse-toggle{margin-top:auto;border-top:1px solid #333}.main-content{flex:1;padding:1.5rem;overflow-y:auto;height:calc(100vh - 52px)}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:.5rem}.page-header h2{font-size:1.4rem}table{width:100%;border-collapse:collapse;background:var(--bg-card);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}th,td{padding:.6rem .75rem;text-align:left;border-bottom:1px solid var(--border);font-size:.9rem}th{background:var(--th-bg);font-weight:600;color:var(--text-muted)}tr:hover{background:var(--hover-row)}button,.btn{padding:.4rem .8rem;border:none;border-radius:6px;cursor:pointer;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{background:#e65100;color:#fff}.btn-sm{padding:.25rem .5rem;font-size:.8rem}input,select,textarea{padding:.5rem;border:1px solid var(--border-input);border-radius:6px;font-size:.9rem;background:var(--bg);color:var(--text)}textarea{font-family:inherit}.filters{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap;align-items:center}.badge{display:inline-block;padding:.15rem .5rem;border-radius:12px;font-size:.75rem;font-weight:600}.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{font-size:.65rem;padding:.1rem .35rem}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:100;padding:1rem}.modal{background:var(--bg-card);padding:1.5rem;border-radius:12px;min-width:400px;max-width:90vw;max-height:90vh;overflow-y:auto;position:relative}.modal h3{margin-bottom:1rem;cursor:grab;-webkit-user-select:none;user-select:none}.modal label{display:block;margin-bottom:.25rem;font-size:.85rem;font-weight:600;color:var(--text-muted)}.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{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem}.stat-card{background:var(--bg-card);padding:1.25rem;border-radius:12px;box-shadow:var(--shadow)}.stat-card .value{font-size:1.8rem;font-weight:700;color:var(--primary)}.stat-card .label{font-weight:600}.stat-card .sub{font-size:.8rem;color:var(--text-light)}.flat-checks{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.75rem}.flat-checks label{display:flex;align-items:center;gap:.3rem;padding:.3rem .6rem;border:1px solid var(--border-input);border-radius:6px;cursor:pointer;font-size:.85rem}.flat-checks label.checked{background:var(--primary-bg);border-color:var(--primary)}.bill-summary{background:var(--bg-card);border-radius:12px;padding:1.25rem;box-shadow:var(--shadow);margin-bottom:1rem}.bill-month-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.75rem;margin-bottom:1rem}.bill-month-card{background:var(--bg-card);padding:1rem;border-radius:10px;box-shadow:var(--shadow);cursor:pointer;text-align:center;border:2px solid transparent;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{max-width:900px;margin:0 auto;padding:1.5rem}.resident-header{text-align:center;margin-bottom:1.5rem}.resident-header h1{font-size:1.5rem;color:var(--primary)}.resident-header p{color:var(--text-muted);font-size:.9rem}.due-card{background:var(--bg-card);border-radius:16px;padding:2rem;box-shadow:var(--shadow-lg);margin-bottom:1.5rem;text-align:center}.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);font-size:.9rem;margin-top:.25rem}.due-breakdown{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin:1.25rem 0 0}.due-breakdown .item{text-align:center}.due-breakdown .item .val{font-size:1.2rem;font-weight:600}.due-breakdown .item .lbl{font-size:.8rem;color:var(--text-light)}.upi-box{background:var(--success-bg);border-radius:10px;padding:1rem;text-align:center;margin-bottom:1rem}.upi-box .upi{font-size:1.1rem;font-weight:600;color:var(--success)}.contact-box{background:var(--th-bg);border-radius:10px;padding:1rem;font-size:.85rem;color:var(--text-muted);margin-top:1.5rem}.highlight-col{background:var(--highlight)!important}.import-section{background:var(--bg-card);border-radius:12px;padding:1.5rem;margin-bottom:1rem;box-shadow:var(--shadow)}.report-tabs{display:flex;gap:0;margin-bottom:1rem;border-bottom:2px solid var(--border);overflow-x:auto}.report-tab{padding:.5rem 1rem;border:none;background:none;cursor:pointer;font-size:.9rem;color:var(--text-muted);border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap}.report-tab:hover{color:var(--primary)}.report-tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.report-section{background:var(--bg-card);border-radius:12px;padding:1.25rem;box-shadow:var(--shadow);margin-bottom:1rem}.drop-zone{border:2px dashed var(--border-input);border-radius:10px;padding:2rem;text-align:center;cursor:pointer;color:var(--text-light);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{position:fixed;bottom:1.5rem;right:1.5rem;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;font-size:1.3rem;border:none;cursor:pointer;box-shadow:var(--shadow-lg);z-index:50;display:flex;align-items:center;justify-content:center}.fab-refresh:hover{background:var(--primary-hover)}@media (max-width: 768px){.top-bar{padding:0 .5rem}.brand{font-size:.9rem}.user-info{display:none}.main-content{padding:.75rem}.sidebar{position:fixed;top:52px;left:0;bottom:0;z-index:20}.sidebar.collapsed{width:0;padding:0}.filters{flex-direction:column;align-items:stretch}.filters input,.filters select{min-width:auto;width:100%}.modal{min-width:auto;width:95vw;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{padding:.4rem .5rem;white-space:nowrap}.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 (max-width: 480px){.stats-grid,.bill-month-grid,.due-breakdown{grid-template-columns:1fr}}
