.auth-container{display:flex;justify-content:center;align-items:center;padding:40px 20px;min-height:calc(100vh - 80px);background-color:#f0f4f8}.auth-form{width:100%;max-width:420px;padding:40px;background-color:#fff;border-radius:12px;box-shadow:0 5px 25px #00000014}.auth-form h2{text-align:center;margin-bottom:25px;color:#1a535c;font-size:1.8rem;font-weight:600;position:relative;display:inline-block;left:50%;transform:translate(-50%);padding-bottom:10px}.auth-form h2:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:3px;background-color:#4ecdc4;border-radius:2px}.auth-form .form-field{margin-bottom:1.25rem}.auth-form .form-field label{display:block;margin-bottom:.5rem;font-weight:500;color:#343a40;font-size:.9rem}.auth-form input[type=text],.auth-form input[type=email],.auth-form input[type=password]{width:100%;padding:12px 15px;border:1px solid #ced4da;border-radius:6px;font-size:1rem;transition:border-color .2s,box-shadow .2s}.auth-form input:focus{outline:none;border-color:#4ecdc4;box-shadow:0 0 0 3px #4ecdc433}.auth-form button{width:100%;margin-top:10px;padding:12px;font-size:1rem;font-weight:700}.auth-switch{text-align:center;margin-top:20px;font-size:.9rem;color:#6c757d}.auth-switch a{color:#4ecdc4;text-decoration:none;font-weight:700}.error-message{color:#e76f51;background-color:transparent;border:none;padding:0;margin-bottom:1.5rem;text-align:left;font-size:.9rem;font-weight:500}.create-group-container{padding:25px;background-color:#fff;border-radius:8px;margin-bottom:30px;border:1px solid #eef0f2;box-shadow:0 4px 12px #0000000d}.create-group-container h3{margin-top:0;margin-bottom:1.5rem;color:#333;font-weight:600}.create-group-container .form-field{margin-bottom:1.5rem;position:relative}.create-group-container .form-field label{display:block;margin-bottom:.5rem;font-weight:700;color:#495057;font-size:.9rem}.search-results{list-style:none;padding:0;margin:5px 0 0;border:1px solid #dee2e6;border-radius:4px;max-height:150px;overflow-y:auto;position:absolute;width:100%;background-color:#fff;z-index:10;box-shadow:0 4px 8px #0000001a}.search-results li{padding:10px;cursor:pointer}.search-results li:hover{background-color:#f8f9fa}.search-info{padding:10px;color:#888;font-style:italic}.selected-members{display:flex;flex-wrap:wrap;gap:10px;margin-top:-1rem;margin-bottom:1.5rem;padding-bottom:0}.member-pill{background-color:#e0f2f1;color:#00796b;padding:5px 10px;border-radius:15px;display:flex;align-items:center;font-size:.9rem}.member-pill button{background:none;border:none;color:#00796b;margin-left:8px;cursor:pointer;font-size:1.2rem;line-height:1}.create-group-container button[type=submit]{width:100%;padding:12px;font-size:1rem;font-weight:700;background-color:#1a535c;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s;margin-top:.5rem}.create-group-container button[type=submit]:hover{background-color:#2c7a85}.group-list-container{margin-top:2rem}.group-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.5rem}.group-card{background-color:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:20px;text-decoration:none;color:#333;transition:transform .2s,box-shadow .2s}.group-card:hover{transform:translateY(-5px);box-shadow:0 6px 12px #0000001a}.group-card h3{margin:0 0 10px;color:#1a535c}.group-card p{margin:0;font-size:.9rem;color:#555}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#0009;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background-color:#fff;padding:20px;border-radius:8px;width:500px;max-width:90%;box-shadow:0 5px 15px #0000004d;animation:slide-down .3s ease-out;max-height:85vh;overflow-y:auto}@keyframes slide-down{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #eee;padding-bottom:10px;margin-bottom:20px;position:sticky;top:-20px;background-color:#fff;z-index:10}.modal-title{margin:0;font-size:1.25rem;color:#1a535c}.modal-close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#888}.modal-body{margin-bottom:20px}.modal-footer{display:flex;justify-content:flex-end;gap:10px}.btn{padding:10px 20px;border-radius:5px;border:none;font-weight:700;cursor:pointer}.btn-primary{background-color:#4ecdc4;color:#fff}.btn-primary:hover{background-color:#1a535c}.btn-secondary{background-color:#f0f0f0;color:#333}.btn-secondary:hover{background-color:#e0e0e0}.confirmation-details{line-height:1.6}.confirmation-details p{margin:5px 0}.confirmation-details strong{color:#333}.confirmation-details .share-info{margin-top:15px;padding-top:15px;border-top:1px solid #f0f0f0}.participant-names{font-size:.9rem;color:#555;line-height:1.5;max-height:80px;overflow-y:auto;background-color:#f9f9f9;padding:8px;border-radius:4px}.warning-text{margin-top:15px;font-size:.9rem;color:#e76f51;font-weight:700}.my-total-share-container{background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 4px 12px #00000014;margin-top:0}.my-total-share-container h2{margin-top:0}.share-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.share-card{background-color:#fff;padding:1rem;border-radius:6px;border:1px solid #e7e7e7;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.share-name{font-weight:700;color:#333;margin-bottom:.5rem}.share-amount{font-size:1.5rem;font-weight:700;color:#1a535c}.group-page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:0 1rem}.group-page-header h1{border-bottom:none;margin:0;font-size:2.5rem;color:#333}.group-grid-container{display:grid;grid-template-columns:1fr;gap:2rem}@media (min-width: 992px){.group-grid-container{grid-template-columns:320px 1fr}}.group-sidebar{display:flex;flex-direction:column;gap:2rem}.group-main-content{background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000014;overflow:hidden}.group-tabs{display:flex;background-color:#f8f9fa;border-bottom:1px solid #dee2e6;overflow-x:auto;-webkit-overflow-scrolling:touch}.group-tabs a{padding:15px 25px;text-decoration:none;color:#495057;font-weight:600;border-bottom:3px solid transparent;transition:all .2s;white-space:nowrap}.group-tabs::-webkit-scrollbar{display:none}.group-tabs a:hover{background-color:#e9ecef}.group-tabs a.active{color:#1a535c;border-bottom-color:#4ecdc4;background-color:#fff}.tab-content{padding:25px}.navbar{background:#1a535c;height:80px;display:flex;justify-content:center;align-items:center;font-size:1.1rem;position:sticky;top:0;z-index:999}.navbar-container{display:flex;justify-content:space-between;align-items:center;height:80px;z-index:1;width:100%;max-width:1200px;padding:0 24px}.navbar-logo{color:#fff;cursor:pointer;text-decoration:none;font-size:2rem;font-weight:700}.nav-menu{display:flex;align-items:center;list-style:none;text-align:center;margin:0;padding:0}.nav-item{height:80px;display:flex;align-items:center}.nav-links{color:#fff;text-decoration:none;padding:0 1rem;height:100%;display:flex;align-items:center;transition:all .2s ease-out}.nav-links:hover,.nav-links.active{color:#4ecdc4}.nav-user{color:#f4f7f6;padding:0 1rem;white-space:nowrap}.nav-button{background-color:#4ecdc4;color:#1a535c;border:none;padding:8px 20px;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:700;margin-left:1rem;transition:background-color .2s}.nav-button:hover{background-color:#fff}.menu-icon{display:none}@media screen and (max-width: 960px){.nav-menu{display:flex;flex-direction:column;width:100%;height:100vh;position:absolute;top:0;left:-100%;opacity:0;transition:all .5s ease}.nav-menu.active{background:#1a2035;left:0;opacity:1;z-index:100;justify-content:center;align-items:center}.nav-item{width:auto;height:auto;padding:1rem 0}.nav-links{text-align:center;padding:0;width:auto;display:block;font-size:1.8rem}.nav-links:hover{background:none;border-bottom:none;color:#4ecdc4}.nav-user-item{padding:1.5rem 0}.nav-user{padding:0;font-size:1.2rem}.nav-button{display:block;width:220px;max-width:none;margin:0;padding:14px 20px;font-size:1.2rem}.menu-icon{display:block;position:absolute;top:0;right:0;transform:translate(-100%,60%);font-size:1.8rem;cursor:pointer;color:#fff;z-index:101}.menu-icon .fa-times{color:#fff}}.share-enabled p,.share-disabled p{font-size:.9rem;color:#555;line-height:1.5;margin-bottom:1.5rem}.share-link-container{display:flex;margin:1rem 0}.share-link-container input{flex-grow:1;border:1px solid #ccc;padding:10px;font-size:.9rem;color:#333;border-radius:4px 0 0 4px;background-color:#f8f9fa}.share-link-container button{border-radius:0 4px 4px 0;border-left:none;padding:0 15px;white-space:nowrap}.btn-danger{background-color:#e76f51;color:#fff}.btn-danger:hover{background-color:#d05a40}.members-page-layout{display:grid;grid-template-columns:1fr;gap:2rem}@media (min-width: 768px){.members-page-layout{grid-template-columns:1fr 1fr}}.members-card{background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000000d}.members-card h3{margin-top:0;border-bottom:1px solid #eee;padding-bottom:10px}.current-members-list{list-style:none;padding:0}.current-members-list li{padding:8px 0;border-bottom:1px solid #f0f0f0}.invite-info{font-size:.9rem;color:#555;margin-bottom:1.5rem}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;padding:0;background-color:#f4f7f6;color:#333}.container{max-width:1200px;margin:2rem auto;padding:1rem 2rem;background-color:#fff;border-radius:8px;box-shadow:0 4px 6px #0000001a}h1,h2{color:#1a535c;border-bottom:2px solid #4ecdc4;padding-bottom:.5rem;margin-bottom:1rem}button{background-color:#4ecdc4;color:#fff;border:none;padding:10px 15px;border-radius:5px;cursor:pointer;font-size:1rem;font-weight:700;transition:background-color .2s}button:hover{background-color:#1a535c}button:disabled{background-color:#ccc;cursor:not-allowed}.list-container,.settlement-container{margin-top:2rem;padding:1.5rem;border:1px solid #e0e0e0;border-radius:8px;background-color:#fdfdfd}.form-container{margin-top:2rem;padding:1rem;border:1px solid #e0e0e0;border-radius:8px;background-color:#fdfdfd}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.form-field{display:flex;flex-direction:column}.form-field label{margin-bottom:.5rem;font-weight:700;color:#555}.form-field input,.form-field select{padding:10px;border:1px solid #ccc;border-radius:4px;font-size:1rem}.participants-list{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:1rem}.participant-item{display:flex;align-items:center;gap:.5rem}.list-item{padding:1rem;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.list-item:last-child{border-bottom:none}.settlement-item{padding:1rem;border-bottom:1px solid #eee;display:grid;grid-template-columns:1fr auto auto;gap:1rem;align-items:center}.settlement-item p:first-child{margin:0;grid-column:1 / 2}.settlement-item p:nth-child(2){margin:0;font-weight:700;font-size:1.1rem;grid-column:2 / 3;justify-self:end}.settlement-item label,.settlement-item span{grid-column:3 / 4;white-space:nowrap}.settlement-item:last-child{border-bottom:none}.settlement-paid{text-decoration:line-through;color:#999}.balance-summary-container{background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 4px 12px #00000014;margin-top:0}.balance-summary-container h2{margin-top:0}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.summary-section h3{border-bottom:1px solid #ccc;padding-bottom:.5rem;margin-top:0;color:#333}.summary-section ul{list-style-type:none;padding:0}.summary-section li{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid #f0f0f0}.positive-balance{color:#2a9d8f}.negative-balance{color:#e76f51}.payer-summary-container{margin-top:2rem}.payer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.payer-card{background-color:#fdfdfd;border:1px solid #e0e0e0;border-radius:8px;padding:1rem}.payer-header{display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid #f0f0f0;padding-bottom:.5rem;margin-bottom:1rem}.payer-card h3{margin:0;color:#1a535c}.payer-card ul{list-style:none;padding:0;margin:0}.payer-card li{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;padding:.6rem 0;border-bottom:1px solid #f0f0f0}.payer-card li:last-child{border-bottom:none}.delete-btn{background-color:#e76f51;color:#fff;border:none;border-radius:50%;width:24px;height:24px;font-size:16px;line-height:24px;text-align:center;padding:0;cursor:pointer}.delete-btn:hover{background-color:#d05a40}.expense-details{display:flex;flex-direction:column}.expense-description{font-weight:500}.expense-meta-info{font-size:.8rem;color:#777;margin-top:2px}.expense-actions{display:flex;align-items:center;gap:10px;margin-left:10px}.expense-amount{font-weight:700}.manage-members-container{padding:20px;background-color:#f8f9fa;border-radius:8px;margin-top:2rem;border:1px solid #e0e0e0}.current-members{margin-bottom:1.5rem;font-size:.95rem;line-height:1.5}.manage-members-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.manage-members-header h3{margin:0}.add-members-form{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid #e0e0e0}.form-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1.5rem}.form-actions .btn-secondary{background-color:#e0e0e0;color:#333}.form-actions .btn-secondary:hover{background-color:#d1d1d1}@media (max-width: 768px){.container{padding:1rem;margin:1rem auto}.form-grid{grid-template-columns:1fr;gap:1rem}.summary-grid{grid-template-columns:1fr;gap:2.5rem}}