*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:#f5f7fb;color:#172033}button,input,select{font:inherit}button{cursor:pointer;border:0}input,select{border:1px solid #d9deea;border-radius:10px;padding:10px 12px;background:#fff;outline:none}input:focus,select:focus{border-color:#2563eb}.hidden{display:none!important}.center-screen{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#eef5ff,#f7f9fc)}.login-card{width:min(410px,92vw);background:#fff;border:1px solid #e7eaf1;border-radius:22px;padding:36px;box-shadow:0 20px 60px #17203314;text-align:center}.brand-mark,.side-brand>span{width:44px;height:44px;border-radius:13px;display:inline-grid;place-items:center;background:#2563eb;color:#fff;font-weight:800;font-size:22px}.login-card h1{margin:14px 0 4px}.login-card input{display:block;width:100%;margin:12px 0}.primary{background:#2563eb;color:#fff;border-radius:10px;padding:10px 16px;font-weight:700}.primary:hover{background:#1d4ed8}.ghost{background:#eef3ff;color:#1d4ed8;border-radius:10px;padding:10px 16px;font-weight:700}.full{width:100%;margin-top:8px}.muted{color:#6b7280}.msg{min-height:20px;color:#dc2626}.sidebar{position:fixed;inset:0 auto 0 0;width:240px;background:#fff;border-right:1px solid #e8ebf1;padding:22px 14px;display:flex;flex-direction:column}.side-brand{display:flex;align-items:center;gap:10px;padding:0 8px 24px}.side-brand small{display:block;color:#7a8190;margin-top:2px}.sidebar nav{display:grid;gap:6px}.nav{background:transparent;text-align:left;padding:12px;border-radius:10px;color:#5f6777}.nav.active,.nav:hover{background:#edf4ff;color:#1d4ed8;font-weight:700}.logout{margin-top:auto;background:#fff0f0;color:#dc2626;padding:11px;border-radius:10px}.main{margin-left:240px;min-height:100vh;padding:26px 30px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.topbar h2{margin:0}.top-actions{display:flex;align-items:center;gap:12px;color:#6b7280}.icon-btn{background:#fff;border:1px solid #e2e6ef;border-radius:10px;padding:9px 12px}.toolbar,.section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px}.section-head h3{margin:0}.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:24px}.stat{background:#fff;border:1px solid #e7eaf1;border-radius:15px;padding:18px}.stat span{display:block;color:#6b7280;font-size:13px;margin-bottom:8px}.stat strong{font-size:25px}.room-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.room-card{background:#fff;border:1px solid #e7eaf1;border-radius:15px;padding:16px;position:relative}.room-card .dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#16a34a;margin-right:6px}.room-card.vacant .dot{background:#ef4444}.room-card h4{margin:0 0 7px}.room-card p{margin:5px 0;color:#687184;font-size:13px}.room-card .amount{font-weight:800;color:#172033}.card{background:#fff;border:1px solid #e7eaf1;border-radius:15px;padding:18px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:760px}.table th,.table td{padding:11px 10px;border-bottom:1px solid #edf0f5;text-align:left;white-space:nowrap}.table th{font-size:12px;text-transform:uppercase;color:#707889}.paid{color:#15803d;font-weight:700}.unpaid{color:#dc2626;font-weight:700}.small-btn{padding:7px 10px;border-radius:8px;background:#edf4ff;color:#1d4ed8}.danger-btn{background:#fff0f0;color:#dc2626}.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:20px}.form-grid label{font-size:13px;color:#596273}.form-grid input{display:block;width:100%;margin-top:6px}.settings-card{max-width:850px}.mini{grid-template-columns:repeat(3,1fr)}.modal{position:fixed;inset:0;background:#10182888;display:grid;place-items:center;padding:18px}.modal-card{width:min(520px,96vw);background:#fff;border-radius:18px;padding:24px;position:relative;max-height:90vh;overflow:auto}.modal-close{position:absolute;right:15px;top:10px;background:none;font-size:26px;color:#667085}.modal-card h3{margin-top:0}@media(max-width:1000px){.sidebar{width:76px}.side-brand div,.nav span{display:none}.side-brand{justify-content:center}.main{margin-left:76px}.stats{grid-template-columns:repeat(2,1fr)}.room-grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.sidebar{bottom:0;top:auto;width:100%;height:65px;flex-direction:row;padding:8px;border-top:1px solid #e8ebf1;border-right:0;z-index:10}.side-brand,.logout{display:none}.sidebar nav{display:flex;flex:1;justify-content:space-around}.nav{padding:8px 10px;text-align:center}.nav.active{background:#edf4ff}.main{margin-left:0;padding:16px 14px 85px}.topbar{margin-bottom:15px}.top-actions span{display:none}.stats{grid-template-columns:repeat(2,1fr)}.stat{padding:14px}.stat strong{font-size:20px}.room-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-wrap:wrap}.section-head>div{display:flex;gap:6px}.section-head input,.section-head select{max-width:130px}}
.dashboard-pending{margin-bottom:24px;padding:0}.dashboard-pending .table{min-width:650px}.dashboard-rooms-head{margin-top:4px}.empty-state{padding:20px;text-align:center;color:#15803d;font-weight:700}

/* v14 mobile/PWA polish */
.mobile-menu-btn{display:none;background:#fff;border:1px solid #e2e6ef;border-radius:10px;padding:9px 12px;font-size:20px;line-height:1}
.mobile-overlay{display:none}
@media(max-width:650px){
 body{overflow-x:hidden}
 .sidebar{top:0;bottom:0;left:-285px;width:280px;height:100vh;display:flex;flex-direction:column;padding:20px 14px;border-right:1px solid #e8ebf1;border-top:0;z-index:50;transition:left .22s ease;box-shadow:none}
 .sidebar.mobile-open{left:0;box-shadow:8px 0 30px #17203322}
 .side-brand{display:flex;justify-content:flex-start;padding:0 8px 20px}
 .side-brand div,.nav span{display:block}
 .sidebar nav{display:grid;gap:6px;flex:0}
 .nav{padding:12px;text-align:left;width:100%}
 .logout{display:block;margin-top:auto}
 .mobile-overlay{position:fixed;inset:0;background:#10182866;z-index:40}
 .mobile-overlay.show{display:block}
 .mobile-menu-btn{display:inline-grid;place-items:center}
 .main{margin-left:0;padding:14px 12px 28px}
 .topbar{position:sticky;top:0;z-index:20;background:#f5f7fb;padding:6px 0 10px;gap:8px;align-items:center}
 .topbar>div:first-child{min-width:0;flex:1}
 .topbar h2{font-size:21px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .topbar p{font-size:12px;margin:5px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .top-actions{gap:6px}.top-actions span{display:none}.icon-btn{padding:8px 10px}
 .toolbar{align-items:stretch}.toolbar select,.toolbar input{width:48%;max-width:none}
 .stats{grid-template-columns:1fr 1fr;gap:9px;margin-bottom:18px}.stat{padding:13px}.stat strong{font-size:19px}
 .room-grid{grid-template-columns:1fr;gap:10px}.room-card{padding:14px}
 .card{padding:12px}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
 .table{font-size:13px}.table th,.table td{padding:10px 8px}
 .dashboard-pending .table{min-width:560px}
 .section-head{gap:8px;margin-bottom:12px}.section-head>div{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:7px}
 .section-head>div input,.section-head>div select{width:100%;max-width:none;min-width:0}
 #billsPage .section-head>div,#reportsPage .section-head>div{grid-template-columns:1fr 1fr}
 #billsPage .section-head>div .primary,#reportsPage .section-head>div .primary{grid-column:1/-1;width:100%}
 .form-grid{grid-template-columns:1fr;gap:10px}.settings-card{max-width:none}
 .primary,.ghost,.small-btn,.logout{min-height:42px}
 .modal{padding:10px}.modal-card{width:100%;padding:20px 16px}
}
@media(max-width:390px){.stats{grid-template-columns:1fr}.toolbar{flex-wrap:wrap}.toolbar select,.toolbar input{width:100%}}

/* v15 PWA install button */
.install-app{white-space:nowrap;padding:9px 12px}
@media (max-width:650px){
  .top-actions #userEmail{display:none}
  .install-app{font-size:12px;padding:8px 10px}
}