@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#eef2ff;--success:#10b981;--danger:#ef4444;--bg-color:#f3f4f6;--card-bg:#fff;--text-main:#111827;--text-muted:#6b7280;--border:#e5e7eb;--radius:16px;--shadow:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);-webkit-font-smoothing:antialiased;padding-bottom:90px;font-size:16px}.screen{display:none}.screen.active{animation:.4s cubic-bezier(.16,1,.3,1) fadeUp;display:block}.tab-content{display:none}.tab-content.active{animation:.3s cubic-bezier(.16,1,.3,1) fadeUp;display:block}@keyframes fadeUp{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.container{max-width:600px;margin:0 auto;padding:16px 20px}header{-webkit-backdrop-filter:blur(8px);color:var(--text-main);z-index:50;border-bottom:1px solid var(--border);background:#ffffffe6;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}header h1{letter-spacing:-.5px;background:linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;flex:1;align-items:center;gap:8px;margin:0;font-size:24px;font-weight:800;display:flex}.logout-btn{background:var(--primary-light);color:var(--primary);cursor:pointer;border:none;border-radius:8px;padding:8px 14px;font-size:14px;font-weight:600;transition:all .2s}.logout-btn:active{transform:scale(.95)}.input-box{text-align:left;width:100%;margin-bottom:20px}.input-box label{color:var(--text-main);margin-bottom:8px;font-size:14px;font-weight:600;display:block}.input-box input,.input-box select{border:1.5px solid var(--border);-webkit-appearance:none;width:100%;color:var(--text-main);background:#fff;border-radius:12px;outline:none;padding:14px 16px;font-size:16px;transition:all .2s}.input-box input:focus,.input-box select:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-light)}.input-row{gap:12px;display:flex}.input-row .input-box{flex:1}.btn{color:#fff;cursor:pointer;text-align:center;letter-spacing:.2px;border:none;border-radius:12px;width:100%;margin-top:12px;padding:16px;font-size:16px;font-weight:600;transition:all .2s;display:block}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--primary);box-shadow:0 4px 12px #4f46e54d}.btn-success{background-color:var(--success);box-shadow:0 4px 12px #10b9814d}.btn-danger{background-color:var(--primary-light);color:var(--danger)}.btn-outline{color:var(--text-main);border:1px solid var(--border);box-shadow:var(--shadow);background-color:#fff}.btn-small{box-shadow:none;margin-top:0;padding:10px;font-size:14px}.auth-container{text-align:center;margin-top:60px;padding:0 24px}.logo-box{background:linear-gradient(135deg, var(--primary), #818cf8);color:#fff;border-radius:20px;justify-content:center;align-items:center;width:72px;height:72px;margin-bottom:24px;display:inline-flex;box-shadow:0 8px 16px #4f46e540}.auth-container h1{letter-spacing:-.5px;margin-bottom:8px;font-size:28px;font-weight:700}.auth-container p{color:var(--text-muted);margin-bottom:32px;font-size:15px}.room-card{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:16px;padding:20px;transition:transform .2s}.room-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.room-name{color:var(--text-main);font-size:20px;font-weight:700}.room-tenant{color:var(--primary);background:var(--primary-light);border-radius:20px;padding:4px 12px;font-size:14px;font-weight:600}.room-details p{color:var(--text-muted);justify-content:space-between;margin-bottom:10px;font-size:15px;display:flex}.room-details strong{color:var(--text-main);font-weight:600}.room-actions{border-top:1px solid var(--border);gap:12px;margin-top:20px;padding-top:16px;display:flex}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#11182799;justify-content:center;align-items:flex-end;display:none;position:fixed;inset:0}.modal-overlay.active{animation:.2s fadeInModal;display:flex}@keyframes fadeInModal{0%{opacity:0}to{opacity:1}}.modal-content{background:var(--card-bg);border-radius:24px 24px 0 0;width:100%;max-width:600px;max-height:90vh;padding:24px;animation:.3s cubic-bezier(.16,1,.3,1) slideUp;overflow-y:auto}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.modal-title{letter-spacing:-.5px;font-size:22px;font-weight:700}.close-btn{background:var(--bg-color);color:var(--text-muted);cursor:pointer;border:none;border-radius:18px;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;display:flex}.input-group{background:var(--bg-color);border-radius:12px;margin-bottom:16px;padding:16px}.input-group label{color:var(--text-muted);margin-bottom:8px;font-size:14px;font-weight:600;display:block}.input-group input{border:none;border-bottom:2px solid var(--primary);width:100%;color:var(--primary);background:0 0;outline:none;padding:4px 0;font-size:28px;font-weight:700}.bill-summary{background:var(--primary-light);border-radius:12px;margin-bottom:24px;padding:16px}.bill-row{justify-content:space-between;margin-bottom:12px;font-size:15px;font-weight:500;display:flex}.bill-total{color:var(--primary);border-top:1px solid #4f46e533;justify-content:space-between;margin-top:16px;padding-top:16px;font-size:20px;font-weight:700;display:flex}.bottom-nav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--border);z-index:100;padding-bottom:env(safe-area-inset-bottom);background:#ffffffe6;justify-content:center;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-inner{width:100%;max-width:600px;padding:8px 16px;display:flex}.nav-item{text-align:center;color:var(--text-muted);cursor:pointer;border-radius:12px;flex:1;padding:8px 0;font-size:12px;font-weight:600;text-decoration:none;transition:all .2s}.nav-item svg{stroke:var(--text-muted);margin:0 auto 4px;transition:all .2s;display:block}.nav-item.active{color:var(--primary)}.nav-item.active svg{stroke:var(--primary)}.month-filter-box{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);justify-content:space-between;align-items:center;margin-bottom:20px;padding:16px;display:flex}.month-filter-box label{color:var(--text-main);font-weight:600}.month-filter-box input{color:var(--primary);border:1px solid var(--border);background:var(--bg-color);border-radius:8px;outline:none;padding:8px 12px;font-size:16px;font-weight:600}.badge-status{border-radius:20px;margin-top:8px;padding:6px 12px;font-size:13px;font-weight:600;display:inline-block}.badge-unpaid{color:#ef4444;background:#fee2e2}.badge-paid{color:#10b981;background:#d1fae5}#toast-container{z-index:9999;flex-direction:column;gap:10px;width:90%;max-width:400px;display:flex;position:fixed;top:20px;left:50%;transform:translate(-50%)}.toast{-webkit-backdrop-filter:blur(10px);color:var(--text-main);border-left:4px solid var(--primary);opacity:0;background:#fffffff2;border-radius:12px;justify-content:space-between;align-items:center;padding:16px 20px;animation:.3s cubic-bezier(.16,1,.3,1) forwards toastSlideDown;display:flex;transform:translateY(-20px);box-shadow:0 10px 25px #0000001a,0 4px 6px -1px #0000000d}.toast.toast-success{border-left-color:var(--success)}.toast.toast-error{border-left-color:var(--danger)}.toast-content{align-items:center;gap:12px;font-size:15px;font-weight:600;display:flex}.toast-icon{justify-content:center;align-items:center;display:flex}.toast.toast-success .toast-icon{color:var(--success)}.toast.toast-error .toast-icon{color:var(--danger)}.toast.toast-primary .toast-icon{color:var(--primary)}.toast.hide{animation:.3s ease-in forwards toastFadeOut}@keyframes toastSlideDown{to{opacity:1;transform:translateY(0)}}@keyframes toastFadeOut{to{opacity:0;margin-top:-60px;transform:translateY(-20px)}}