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thead{background:var(--color-primary);color:#fff}.settlement-matrix-table th{padding:var(--space-5);text-align:center;font-weight:800;font-size:var(--font-size-base);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid rgba(255,255,255,.3)}.settlement-matrix-table th:first-child{text-align:left;background:#0000001a}.settlement-matrix-table tbody tr{border-bottom:1px solid var(--color-gray-200);transition:all var(--transition-base)}.settlement-matrix-table tbody tr:hover{background:var(--color-gray-50)}.settlement-matrix-table tbody tr:last-child{border-bottom:none}.settlement-matrix-table td{padding:var(--space-4);text-align:center;font-size:var(--font-size-base);font-weight:600}.settlement-matrix-table td.person-name{text-align:left;background:var(--color-gray-100);font-weight:800;color:var(--color-gray-900);font-size:var(--font-size-lg)}.settlement-matrix-table td.same-person{background:var(--color-gray-100);color:var(--color-gray-400);font-weight:700}.settlement-matrix-table td.net-debt-cell{font-weight:700;font-size:var(--font-size-base)}.settlement-matrix-table td.net-debt-cell.owes{background:#ef444414;color:#dc2626}.settlement-matrix-table td.net-debt-cell.owes:hover{background:#ef44441f}.settlement-matrix-table td.net-debt-cell.receives{background:#10b98114;color:#059669}.settlement-matrix-table td.net-debt-cell.settled{background:#e5e7eb80;color:#10b981;font-size:var(--font-size-lg)}.settlement-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--color-gray-200)}.settlement-table thead{background:var(--color-primary);color:#fff}.settlement-table th{padding:var(--space-5);text-align:left;font-weight:800;font-size:var(--font-size-base);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid rgba(255,255,255,.3)}.settlement-table th.net-payment-header{text-align:center;background:#fbbf2433}.settlement-table tbody tr{border-bottom:1px solid var(--color-gray-200);transition:all var(--transition-base)}.settlement-table tbody tr:hover{background:var(--color-gray-50)}.settlement-table tbody tr:last-child{border-bottom:none}.settlement-table td{padding:var(--space-5);font-size:var(--font-size-base)}.settlement-table .person-name{font-weight:700;color:var(--color-gray-900);font-size:var(--font-size-lg)}.settlement-table .owes-amount{font-weight:600;color:var(--color-gray-700);text-align:center}.settlement-table .net-payment-cell{text-align:center;background:#fbbf2414}.settlement-table .net-payment-cell.settled{background:#10b98114}.net-payment-info{display:flex;flex-direction:column;gap:var(--space-2);align-items:center}.payment-arrow{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);font-weight:600}.payment-arrow .payer{color:#ef4444;font-weight:700}.payment-arrow .arrow{color:var(--color-primary);font-size:var(--font-size-xl);font-weight:900}.payment-arrow .receiver{color:#10b981;font-weight:700}.net-amount{display:inline-block;padding:var(--space-2) var(--space-4);background:var(--color-accent);color:var(--color-primary);font-weight:900;font-size:var(--font-size-lg);border-radius:var(--radius-full);box-shadow:var(--shadow-sm)}.settled-badge{display:inline-block;padding:var(--space-2) var(--space-4);background:#10b981;color:#fff;font-weight:700;font-size:var(--font-size-base);border-radius:var(--radius-full);box-shadow:var(--shadow-sm)}.no-settlements-row{text-align:center;font-size:var(--font-size-xl);font-weight:700;color:var(--color-gray-600);padding:var(--space-10)!important}.simplified-settlements{background:var(--color-gray-50);border-radius:var(--radius-lg);padding:var(--space-6)}.settlement-list{display:flex;flex-direction:column;gap:var(--space-4)}.settlement-row{display:grid;grid-template-columns:1fr auto 1fr auto;align-items:center;gap:var(--space-4);padding:var(--space-5);background:#fff;border-radius:var(--radius-lg);border:2px solid var(--color-gray-200);transition:all var(--transition-base)}.settlement-row:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translate(4px)}.settlement-from,.settlement-to{font-weight:700;font-size:var(--font-size-lg);color:var(--color-gray-900)}.settlement-from{text-align:right;color:#ef4444}.settlement-to{text-align:left;color:#10b981}.settlement-arrow{font-size:var(--font-size-2xl);font-weight:700;color:var(--color-primary);padding:0 var(--space-2)}.settlement-amount{font-size:var(--font-size-xl);font-weight:900;color:var(--color-primary);background:var(--color-accent);padding:var(--space-3) var(--space-5);border-radius:var(--radius-full);text-align:center;box-shadow:var(--shadow-sm)}.no-settlements{text-align:center;font-size:var(--font-size-xl);font-weight:700;color:var(--color-gray-600);padding:var(--space-10)}.matrix-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--color-gray-200)}.matrix-table thead{background:var(--color-primary);color:#fff}.matrix-table th{padding:var(--space-5) var(--space-4);text-align:center;font-weight:700;font-size:var(--font-size-sm);white-space:nowrap;border:none;letter-spacing:.02em}.matrix-table th:first-child{text-align:left;min-width:120px;padding-left:var(--space-6)}.matrix-table td{padding:var(--space-5) var(--space-4);border-bottom:1px solid var(--color-gray-100);text-align:center;color:var(--color-gray-500);font-size:var(--font-size-base);font-weight:600}.matrix-table tbody tr:last-child td{border-bottom:none}.matrix-table tbody tr{transition:background var(--transition-fast)}.matrix-table tbody tr:hover{background:var(--color-gray-50)}.matrix-table .person-name{text-align:left;color:var(--color-gray-900);font-weight:700;background:var(--color-gray-50);font-size:var(--font-size-lg);padding-left:var(--space-6)}.matrix-table .matrix-cell.has-debt{background:#fee2e2;color:#dc2626;font-weight:800;font-size:var(--font-size-lg)}.cell-content{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.pay-btn-small{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-1) var(--space-2);background:#10b981;color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease;opacity:.8;flex-shrink:0}.pay-btn-small:hover{opacity:1;transform:scale(1.1);box-shadow:0 2px 8px #10b98166}.pay-btn-small:active{transform:scale(1)}.net-debt-cell .cell-content{justify-content:center;gap:var(--space-3)}.matrix-table .total-cell{background:var(--color-success);color:#fff;font-weight:800;border-left:3px solid rgba(255,255,255,.3);font-size:var(--font-size-lg)}.matrix-table .owes-cell{background:#fee2e2}.matrix-table .collect-cell{background:#d1fae5}.matrix-table .net-balance-cell{font-size:var(--font-size-xl);border-left:4px solid rgba(255,255,255,.4)}.matrix-table .net-balance-cell.positive{background:var(--color-tertiary);color:#fff}.matrix-table .net-balance-cell.negative{background:var(--color-accent);color:var(--color-primary)}.matrix-table .net-balance-header{background:var(--color-primary);color:#fff;font-weight:900}.payment-tracking-list{display:flex;flex-direction:column;gap:var(--space-6);margin-top:var(--space-5)}.payment-tracking-item{background:#f8fafc;border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:var(--space-6);transition:all var(--transition-base)}.payment-tracking-item:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary)}.payment-item-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:var(--space-4);padding-bottom:var(--space-4);border-bottom:2px solid var(--color-gray-200)}.payment-item-header h3{margin:0;font-size:var(--font-size-xl);font-weight:800;color:var(--color-gray-900)}.payment-item-info{display:flex;flex-direction:column;align-items:flex-end;gap:var(--space-1)}.payment-total{font-size:var(--font-size-2xl);font-weight:800;color:var(--color-primary)}.payment-date{font-size:var(--font-size-sm);color:var(--color-gray-600)}.payment-progress-bar{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4)}.progress-bar-bg{flex:1;height:8px;background:var(--color-gray-200);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width .3s ease}.progress-text{font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-700);white-space:nowrap}.sort-controls{display:flex;align-items:center;gap:var(--space-3)}.sort-controls 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strong{color:var(--color-gray-900)}.payment-members-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-3)}.payment-member-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);background:#fff;transition:all var(--transition-base)}.payment-member-item.paid{background:#10b98114;border-color:#10b981}.payment-member-item.unpaid{background:#fff}.payment-member-item.is-payer{background:#0f4c751f;border-color:var(--color-primary)}.payment-member-item:hover:not(.is-payer){box-shadow:var(--shadow-sm);transform:translateY(-2px)}.payment-checkbox-label{display:flex;align-items:center;gap:var(--space-3);cursor:pointer;-webkit-user-select:none;user-select:none;flex:1}.payment-checkbox-label input[type=checkbox]{width:20px;height:20px;cursor:pointer;accent-color:#10b981}.payment-checkbox-label input[type=checkbox]:disabled{cursor:not-allowed;opacity:.6}.payment-member-name{font-weight:600;color:var(--color-gray-900);font-size:var(--font-size-base)}.payment-member-amount{font-weight:700;color:var(--color-gray-700);font-size:var(--font-size-base)}.payer-badge{display:inline-block;padding:2px 8px;background:var(--color-primary);color:#fff;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.statistics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--space-6);margin-bottom:var(--space-8)}.stat-box{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-6);background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);transition:all var(--transition-base)}.stat-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.stat-icon{width:64px;height:64px;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;background:var(--color-primary);color:#fff;flex-shrink:0}.stat-details{flex:1}.stat-details h4{margin:0 0 var(--space-2) 0;font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-600);text-transform:uppercase;letter-spacing:.05em}.stat-number{margin:0 0 var(--space-1) 0;font-size:var(--font-size-3xl);font-weight:900;color:var(--color-gray-900);line-height:1}.stat-description{font-size:var(--font-size-xs);color:var(--color-gray-500)}.balance-distribution{margin-top:var(--space-8);padding-top:var(--space-8);border-top:2px solid var(--color-gray-200)}.balance-distribution h3{margin:0 0 var(--space-6) 0;font-size:var(--font-size-xl);font-weight:800;color:var(--color-gray-900)}.distribution-bars{display:flex;flex-direction:column;gap:var(--space-4)}.distribution-bar-item{display:flex;align-items:center;gap:var(--space-4)}.distribution-name{min-width:120px;font-weight:700;color:var(--color-gray-900);font-size:var(--font-size-base)}.distribution-bar-container{flex:1;background:var(--color-gray-200);border-radius:var(--radius-full);height:40px;overflow:hidden}.distribution-bar{height:100%;display:flex;align-items:center;justify-content:flex-end;padding:0 var(--space-4);border-radius:var(--radius-full);transition:width .5s ease}.distribution-bar.positive{background:#10b981}.distribution-bar.negative{background:var(--color-accent)}.distribution-value{color:#fff;font-weight:800;font-size:var(--font-size-base);text-shadow:0 1px 3px rgba(0,0,0,.3);white-space:nowrap}.payment-tracking-page{display:flex;flex-direction:column;gap:var(--space-6)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6)}.stat-card{background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:var(--space-6);display:flex;align-items:center;gap:var(--space-4);transition:all var(--transition-base)}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.stat-card .stat-icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.stat-card .stat-content{flex:1}.stat-card h3{margin:0 0 var(--space-2) 0;font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-600);text-transform:uppercase;letter-spacing:.05em}.stat-value{font-size:2.5rem;font-weight:900;color:var(--color-gray-900);line-height:1;margin-bottom:var(--space-1)}.stat-label{font-size:var(--font-size-xs);color:var(--color-gray-500);font-weight:600}.overall-progress{padding:var(--space-6)}.progress-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-6);margin-bottom:var(--space-6)}.progress-stat{display:flex;flex-direction:column;gap:var(--space-2)}.progress-label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-600);text-transform:uppercase;letter-spacing:.05em}.progress-amount{font-size:var(--font-size-2xl);font-weight:800}.progress-amount.paid{color:#10b981}.progress-amount.remaining{color:var(--color-accent)}.progress-amount.completion{color:var(--color-primary)}.progress-bar-large{height:32px;background:var(--color-gray-200);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill-large{height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width .5s ease;display:flex;align-items:center;justify-content:flex-end;padding:0 var(--space-4)}.controls-group{display:flex;flex-direction:column;gap:var(--space-4);width:100%}.filter-row{display:flex;gap:var(--space-4);flex-wrap:wrap;align-items:center}.filter-group{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0}.filter-group.clickable{background:var(--color-gray-50);padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);border:2px solid transparent;transition:all var(--transition-base);cursor:pointer}.filter-group.clickable:hover{background:var(--color-gray-100);border-color:var(--color-gray-200)}.filter-group.clickable:focus-within{border-color:var(--color-primary);background:#fff;box-shadow:0 0 0 3px #667eea1a}.filter-group label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-700);display:flex;align-items:center;gap:var(--space-1);white-space:nowrap;cursor:pointer}.filter-select{padding:var(--space-2) var(--space-3);border:none;border-radius:var(--radius);background:#fff;color:var(--color-gray-900);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-base);min-width:120px}.filter-select:focus{outline:none}.header-controls{display:flex;gap:var(--space-3);align-items:center;flex-wrap:wrap}.search-bar-container{padding:0 var(--space-6) var(--space-6) var(--space-6)}.search-box-full{position:relative;display:flex;align-items:center;width:100%;background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);gap:var(--space-3);transition:all var(--transition-base)}.search-box-full:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #667eea1a}.search-box-full svg{color:var(--color-gray-400);flex-shrink:0}.search-box-full:focus-within svg{color:var(--color-primary)}.search-input-full{flex:1;border:none;outline:none;font-size:var(--font-size-base);color:var(--color-gray-900);background:transparent}.search-input-full::placeholder{color:var(--color-gray-400)}.search-clear-btn{background:var(--color-gray-100);border:none;border-radius:var(--radius);padding:var(--space-1);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--color-gray-600);transition:all var(--transition-base);flex-shrink:0}.search-clear-btn:hover{background:var(--color-gray-200);color:var(--color-gray-900)}.search-box{position:relative;display:flex;align-items:center}.toggle-filters{display:flex;gap:var(--space-2);background:var(--color-gray-100);padding:var(--space-1);border-radius:var(--radius-lg)}.toggle-btn{padding:var(--space-2) var(--space-4);border:none;background:transparent;color:var(--color-gray-700);font-weight:600;font-size:var(--font-size-sm);border-radius:var(--radius);cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.toggle-btn:hover{background:#ffffff80}.toggle-btn.active{background:#fff;color:var(--color-primary);box-shadow:var(--shadow-sm)}@media(max-width:768px){.controls-group{flex-direction:column;align-items:stretch}.toggle-filters{flex-direction:column}.toggle-btn{width:100%}}.balance-grid{display:grid;gap:var(--space-6);grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.balance-card{background:var(--color-gray-50);padding:var(--space-10);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);text-align:center;border:2px solid var(--color-gray-200);transition:all var(--transition-slow);display:flex;flex-direction:column;justify-content:center;align-items:center}.balance-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:var(--shadow-xl);border-color:var(--color-primary)}.balance-name{font-weight:800;color:var(--color-gray-900);margin-bottom:var(--space-6);font-size:var(--font-size-xl);letter-spacing:-.01em}.balance-amount{font-size:3rem;font-weight:900;line-height:1;letter-spacing:-.03em;display:inline;margin-right:var(--space-3)}.balance-status{font-size:var(--font-size-base);color:var(--color-gray-600);font-weight:700;display:inline}.settlement-grid{display:grid;gap:var(--space-6);grid-template-columns:repeat(auto-fit,minmax(360px,1fr))}.settlement-item{padding:var(--space-8);background:#fff;border-radius:var(--radius-xl);border-left:6px solid var(--color-primary);box-shadow:var(--shadow-md);transition:all var(--transition-base)}.settlement-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-left-width:8px}.settlement-item p{margin:0 0 var(--space-4) 0;font-size:var(--font-size-lg);color:var(--color-gray-700);font-weight:600}.settlement-item strong{color:var(--color-gray-900);font-weight:800}.settlement-amount{font-size:2.5rem;font-weight:900;color:var(--color-primary);margin:0;letter-spacing:-.02em}.settlement-transactions{display:flex;flex-direction:column;gap:var(--space-5);margin-top:var(--space-6)}.settlement-transaction{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding:var(--space-8);background:#f8fafc;border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);transition:all .3s cubic-bezier(.4,0,.2,1)}.settlement-transaction:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary);background:#fff}.settlement-flow{display:flex;align-items:center;gap:var(--space-6);flex:1}.settlement-person{display:flex;flex-direction:column;gap:var(--space-2);min-width:140px}.person-label{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.05em;color:var(--color-gray-500);font-weight:700}.settlement-person strong{font-size:var(--font-size-lg);font-weight:800;color:var(--color-gray-900)}.settlement-person.debtor strong{color:#ef4444}.settlement-person.creditor strong{color:#10b981}.settlement-arrow{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius-full);background:var(--color-primary);color:#fff;flex-shrink:0;box-shadow:0 4px 12px #667eea4d}.settlement-actions-group{display:flex;flex-direction:column;gap:var(--space-3);align-items:flex-end}.settlement-amount-large{font-size:2rem;font-weight:900;color:var(--color-primary);letter-spacing:-.02em;white-space:nowrap;padding:var(--space-4) var(--space-6);background:#fff;border-radius:var(--radius-lg);border:2px solid var(--color-primary-light);box-shadow:var(--shadow-sm)}.mark-paid-btn{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);background:#10b981;color:#fff;border:none;border-radius:var(--radius-md);font-weight:700;font-size:var(--font-size-sm);cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #10b9814d;white-space:nowrap}.mark-paid-btn:hover{background:#059669;box-shadow:0 4px 12px #10b98166;transform:translateY(-1px)}.mark-paid-btn:active{transform:translateY(0)}.balances-list{display:flex;flex-direction:column;gap:var(--space-4);margin-top:var(--space-6)}.balance-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-6) var(--space-7);background:var(--color-gray-50);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);transition:all .3s cubic-bezier(.4,0,.2,1)}.balance-item:hover{background:#fff;border-color:var(--color-primary-light);box-shadow:var(--shadow-md);transform:translate(4px)}.balance-info{display:flex;flex-direction:column;gap:var(--space-2)}.member-name{font-size:var(--font-size-xl);font-weight:800;color:var(--color-gray-900)}.balance-status{font-size:var(--font-size-sm);color:var(--color-gray-600);font-weight:600;display:flex;align-items:center;gap:var(--space-1)}.balance-amount{font-size:1.75rem;font-weight:900;letter-spacing:-.02em;white-space:nowrap}.empty-state{text-align:center;padding:var(--space-16) var(--space-8);color:var(--color-gray-400)}.empty-icon{font-size:5rem;margin-bottom:var(--space-5);opacity:.4}.empty-state p{font-size:var(--font-size-xl);margin:var(--space-3) 0;color:var(--color-gray-500);font-weight:700}.empty-state small{font-size:var(--font-size-base);color:var(--color-gray-400);font-weight:500}@media(max-width:1200px){.sidebar{width:280px}.main-container{margin-left:280px}.app-content{padding:var(--space-8)}}@media(max-width:992px){.sidebar{width:100%;height:70px;position:fixed;bottom:0;left:0;z-index:1000;flex-direction:row}.sidebar-header{display:none}.sidebar-nav{flex-direction:row;justify-content:space-evenly;padding-top:5px;padding-bottom:5px}.sidebar-item{width:100px;display:flex;justify-content:center}.sidebar-item:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:#fff;transform:scaleY(0);border-radius:0 4px 4px 0}.sidebar-item:after{content:"";position:absolute;inset:0;background:#ffffff26;opacity:0;transition:opacity .3s ease}.sidebar-item:hover{background:#ffffff26;border-color:#ffffff4d;box-shadow:0 4px 12px #00000026}.sidebar-item:hover:after{opacity:1}.sidebar-item.active{background:#ffffff40;border-color:#fff6;font-weight:700;box-shadow:0 4px 16px #0003,inset 0 1px #ffffff4d}.sidebar-item.active:before{transform:scaleY(1)}.sidebar-item.active:after{opacity:1}.sidebar-label{visibility:hidden;width:0;position:absolute;left:0}.main-container{position:relative;margin-left:0;width:100vw;padding:var(--space-7)}.app-content{padding:var(--space-7);width:100%}}@media(max-width:768px){.sidebar{width:100%;height:50px;position:fixed;bottom:0;left:0;z-index:1000}.main-container{position:relative;margin-left:0;width:100vw}.sidebar-header{padding:var(--space-6) var(--space-5)}.sidebar-header h1{font-size:1.5rem}.sidebar-header p{font-size:var(--font-size-xs)}.sidebar-item{padding:var(--space-4) var(--space-4);font-size:var(--font-size-base)}.sidebar-label{font-size:var(--font-size-base)}.sidebar-icon{font-size:1.5rem}.app-header{padding:var(--space-5) var(--space-6)}.app-header h1{font-size:var(--font-size-xl)}.app-content,.card{padding:var(--space-6)}.members-grid,.item-row{grid-template-columns:1fr}.add-member-form,.form-actions{flex-direction:column}.split-checkboxes,.balance-grid,.settlement-grid{grid-template-columns:1fr}}@media(max-width:480px){.app-header{padding:var(--space-4) var(--space-5)}.app-header h1{font-size:var(--font-size-lg)}.app-content{padding:var(--space-4)}.card{padding:var(--space-5);border-radius:var(--radius-lg)}.member-avatar{width:56px;height:56px;font-size:1.5rem}.balance-amount{font-size:2rem}.settlement-amount{font-size:1.75rem}.card-header{display:flex;flex-direction:column;gap:20px}.header-actions,.member-selector-inline{display:flex;flex-direction:column}}.person-summary-container{display:grid;grid-template-columns:400px 1fr;gap:var(--space-6);height:calc(100vh - 200px)}.person-list-panel{display:flex;flex-direction:column;overflow:hidden}.person-list-panel .card{display:flex;flex-direction:column;height:100%;margin-bottom:0}.filter-section{margin-bottom:var(--space-6)}.search-box{position:relative;margin-bottom:var(--space-4)}.search-box svg{position:absolute;left:var(--space-3);top:50%;transform:translateY(-50%);color:var(--color-gray-400)}.search-box input{width:100%;padding:var(--space-3) var(--space-3) var(--space-3) var(--space-10);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);font-size:var(--font-size-sm);transition:all var(--transition-base)}.search-box input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #667eea1a}.filter-buttons{display:flex;gap:var(--space-2);flex-wrap:wrap}.filter-btn{flex:1;min-width:70px;padding:var(--space-2) var(--space-3);border:2px solid var(--color-gray-200);background:#fff;border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all var(--transition-base)}.filter-btn:hover{border-color:var(--color-primary);background:#667eea0d}.filter-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.member-list{flex:1;overflow-y:auto;padding-right:var(--space-2)}.member-card{padding:var(--space-4);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);margin-bottom:var(--space-3);cursor:pointer;transition:all var(--transition-base);background:#fff}.member-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-sm);transform:translate(4px)}.member-card.selected{border-color:var(--color-primary);background:#0f4c750d;box-shadow:var(--shadow-md)}.member-info h3{margin:0 0 var(--space-2) 0;font-size:var(--font-size-lg);color:var(--color-gray-900)}.member-stats{display:flex;gap:var(--space-4);font-size:var(--font-size-sm);color:var(--color-gray-600)}.member-stats .stat strong{color:var(--color-gray-900)}.member-balance{margin-top:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--color-gray-200)}.status-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:600}.status-badge.settled{background:#10b9811a;color:#059669}.balance-amount{display:flex;flex-direction:column;align-items:flex-end;font-weight:700;font-size:var(--font-size-lg)}.balance-amount small{font-size:var(--font-size-xs);font-weight:500;opacity:.7;margin-top:2px}.balance-amount.positive{color:var(--color-tertiary)}.balance-amount.negative{color:var(--color-accent)}.person-detail-panel{overflow-y:auto;padding-right:var(--space-2)}.quick-actions{margin-bottom:var(--space-6)}.quick-action-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-lg);font-weight:700;font-size:var(--font-size-base);cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}.quick-action-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:#3282b8}.quick-action-btn:active{transform:translateY(0)}.summary-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);margin-bottom:var(--space-6)}.summary-card{background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:var(--space-6);display:flex;gap:var(--space-4);transition:all var(--transition-base)}.summary-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.summary-icon{width:56px;height:56px;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;flex-shrink:0}.summary-icon.paid{background:var(--color-primary);color:#fff}.summary-icon.owed{background:#ef4444;color:#fff}.summary-icon.positive{background:var(--color-tertiary);color:#fff}.summary-icon.negative{background:var(--color-accent);color:var(--color-primary)}.summary-content{flex:1}.summary-content h3{margin:0 0 var(--space-2) 0;font-size:var(--font-size-sm);font-weight:600;color:var(--color-gray-600);text-transform:uppercase;letter-spacing:.05em}.summary-content .amount{margin:0 0 var(--space-1) 0;font-size:var(--font-size-2xl);font-weight:800;color:var(--color-gray-900)}.summary-content .amount.positive{color:var(--color-tertiary)}.summary-content .amount.negative{color:var(--color-accent)}.summary-content small{font-size:var(--font-size-xs);color:var(--color-gray-500)}.debt-list{display:flex;flex-direction:column;gap:var(--space-4)}.debt-item{padding:var(--space-5);border-radius:var(--radius-lg);border:2px solid var(--color-gray-200);transition:all var(--transition-base)}.debt-item:hover{box-shadow:var(--shadow-sm)}.debt-item.owes{background:var(--color-tertiary);color:#fff;border-left:4px solid #dc2626}.debt-item.owed{background:var(--color-tertiary);color:#fff;border-left:4px solid #059669}.debt-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-3);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-gray-200)}.debt-header h3{margin:0;font-size:var(--font-size-lg);color:var(--color-gray-900)}.debt-amount{font-size:var(--font-size-xl);font-weight:800;color:var(--color-gray-900)}.debt-expenses{display:flex;flex-direction:column;gap:var(--space-2)}.debt-expense-item{display:flex;justify-content:space-between;padding:var(--space-2);background:#ffffff80;border-radius:var(--radius);font-size:var(--font-size-sm)}.debt-expense-item span:last-child{font-weight:600;color:var(--color-gray-700)}.payment-actions{display:flex;gap:var(--space-3);margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--color-gray-200)}.payment-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);border:2px solid;border-radius:var(--radius-lg);font-weight:700;font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-base)}.payment-btn.custom{background:#fff;color:var(--color-primary);border-color:var(--color-primary)}.payment-btn.custom:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.payment-btn.full{background:#10b981;color:#fff;border-color:#059669}.payment-btn.full:hover{background:#059669;transform:translateY(-2px);box-shadow:var(--shadow-md)}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:var(--radius-xl);padding:var(--space-8);max-width:500px;width:90%;box-shadow:var(--shadow-xl);animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-content h2{margin:0 0 var(--space-6) 0;font-size:var(--font-size-2xl);font-weight:800;color:var(--color-gray-900)}.modal-body{display:flex;flex-direction:column;gap:var(--space-6)}.payment-info{padding:var(--space-4);background:var(--color-gray-50);border-radius:var(--radius-lg);border-left:4px solid var(--color-primary)}.payment-info p{margin:0 0 var(--space-2) 0;font-size:var(--font-size-base);color:var(--color-gray-700)}.payment-info strong{color:var(--color-gray-900);font-size:var(--font-size-xl)}.payment-note{font-size:var(--font-size-sm);color:var(--color-gray-500);font-style:italic}.payment-input-group{display:flex;flex-direction:column;gap:var(--space-2)}.payment-input-group label{font-weight:700;color:var(--color-gray-700);font-size:var(--font-size-sm)}.payment-input{padding:var(--space-4);border:2px solid var(--color-gray-300);border-radius:var(--radius-lg);font-size:var(--font-size-xl);font-weight:700;color:var(--color-gray-900);transition:all var(--transition-base)}.payment-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6366f11a}.modal-actions{display:flex;gap:var(--space-3);margin-top:var(--space-4)}.btn-secondary,.btn-primary{flex:1;padding:var(--space-4) var(--space-6);border:none;border-radius:var(--radius-lg);font-weight:700;font-size:var(--font-size-base);cursor:pointer;transition:all var(--transition-base)}.btn-secondary{background:var(--color-gray-200);color:var(--color-gray-700)}.btn-secondary:hover:not(:disabled){background:var(--color-gray-300)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:#3282b8;transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-primary:disabled,.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-primary,.btn-secondary{display:flex;align-items:center;justify-content:center;gap:var(--space-2)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-6)}.modal-header h2{margin:0;font-size:var(--font-size-2xl);font-weight:800;color:var(--color-gray-900)}.modal-close{background:transparent;border:2px solid var(--color-gray-300);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;color:var(--color-gray-600)}.modal-close:hover{background:var(--color-error-50);border-color:var(--color-error-300);color:var(--color-error-600)}.modal-question{text-align:center;font-size:var(--font-size-lg);font-weight:600;color:var(--color-gray-700);margin:0 0 var(--space-4) 0}.payment-details{background:var(--color-gray-50);border-radius:var(--radius-md);padding:var(--space-5)}.modal-note{display:flex;gap:var(--space-3);padding:var(--space-4);background:var(--color-primary-light);border:2px solid var(--color-primary);border-radius:var(--radius-md);align-items:flex-start;color:var(--color-primary-dark)}.modal-note p{margin:0;font-size:var(--font-size-sm);line-height:1.5}.expense-filters{display:flex;gap:var(--space-4);align-items:center}.checkbox-label{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);font-weight:500;color:var(--color-gray-700);cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-label 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h3{margin:0;font-size:var(--font-size-base);font-weight:700;color:var(--color-gray-900)}.expense-total{font-size:var(--font-size-lg);font-weight:800;color:var(--color-gray-900)}.expense-detail-info{display:flex;gap:var(--space-4);margin-bottom:var(--space-3);font-size:var(--font-size-sm);color:var(--color-gray-600);flex-wrap:wrap}.expense-payer{display:flex;align-items:center;gap:var(--space-1);font-weight:600}.expense-your-share{padding-top:var(--space-3);border-top:1px solid var(--color-gray-200);font-size:var(--font-size-sm);color:var(--color-gray-700)}.expense-your-share strong{color:var(--color-gray-900)}.empty-selection{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;text-align:center}.empty-selection h2{color:var(--color-gray-400);margin-bottom:var(--space-2)}.empty-selection p{color:var(--color-gray-400);margin:0}.empty-state{text-align:center;padding:var(--space-8);color:var(--color-gray-400)}.empty-state p{margin:0;font-size:var(--font-size-base)}@media(max-width:1200px){.person-summary-container{grid-template-columns:350px 1fr}.summary-cards{grid-template-columns:1fr}}@media(max-width:968px){.person-summary-container{grid-template-columns:1fr;height:auto}.person-list-panel{max-height:400px}.person-detail-panel{max-height:none}}.qr-management-page{padding:var(--space-6);max-width:1400px;margin:0 auto}.qr-management-content{margin-top:var(--space-6)}.header-actions{display:flex;align-items:center;gap:var(--space-4)}.member-selector-inline{display:flex;align-items:center;gap:var(--space-2)}.member-select-compact{padding:var(--space-2) var(--space-3);border:2px solid var(--color-primary-400);border-radius:var(--radius-md);font-size:.9rem;background:#fff;color:var(--color-primary-700);cursor:pointer;transition:all .2s 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ease}.member-select:hover{border-color:var(--color-primary-400)}.member-select:focus{outline:none;border-color:var(--color-primary-500);box-shadow:0 0 0 3px #667eea1a}.qr-actions{margin-bottom:var(--space-6);display:flex;gap:var(--space-3)}.qr-form-container{background:#fff;border:2px solid var(--color-primary-200);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-6);box-shadow:0 4px 12px #00000014}.qr-form-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:2px solid var(--color-gray-100)}.qr-form-header h3{margin:0;color:var(--color-gray-900);font-size:1.25rem}.qr-form{display:flex;flex-direction:column;gap:var(--space-4)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-group label{font-weight:600;color:var(--color-gray-700);font-size:.95rem}.form-group input{padding:var(--space-3) var(--space-4);border:2px solid var(--color-gray-300);border-radius:var(--radius-md);font-size:1rem;transition:all .2s ease}.form-group input:focus{outline:none;border-color:var(--color-primary-500);box-shadow:0 0 0 3px #667eea1a}.form-group small{color:var(--color-gray-500);font-size:.85rem}.form-actions{display:flex;gap:var(--space-3);justify-content:flex-end;margin-top:var(--space-2)}.qr-codes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-5);margin-top:var(--space-4)}.qr-code-card{background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-3);transition:all .3s ease;box-shadow:0 2px 8px #0000000d}.qr-code-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px #0000001f;border-color:var(--color-primary-300)}.qr-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-3)}.qr-card-title h3{margin:0 0 var(--space-1) 0;color:var(--color-gray-900);font-size:1.1rem;font-weight:600}.qr-member-badge{display:inline-block;padding:var(--space-1) var(--space-2);background:var(--color-primary);color:#fff;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;letter-spacing:.3px}.qr-card-actions{display:flex;gap:var(--space-2)}.icon-btn{padding:var(--space-2);border:none;background:var(--color-gray-100);cursor:pointer;border-radius:var(--radius-md);transition:all .2s ease;display:flex;align-items:center;justify-content:center;color:var(--color-gray-600)}.icon-btn:hover{background:var(--color-primary-100);color:var(--color-primary-600)}.icon-btn.delete:hover{background:var(--color-error-100);color:var(--color-error-600)}.qr-card-image{width:100%;aspect-ratio:1;border:2px solid var(--color-gray-200);border-radius:var(--radius-md);overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.qr-card-image:hover{border-color:var(--color-primary-400)}.qr-card-image img{width:100%;height:100%;object-fit:contain;padding:var(--space-2)}.qr-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2);color:var(--color-gray-400)}.btn-view-qr{width:100%;padding:var(--space-2) var(--space-3);background:var(--color-primary-500);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all .2s ease}.btn-view-qr:hover{background:var(--color-primary-600)}.qr-form-card{background:#fff;border:2px solid var(--color-primary-200);border-radius:var(--radius-lg);padding:var(--space-5);margin-bottom:var(--space-5);box-shadow:0 4px 12px #00000014}.qr-close-btn{padding:var(--space-2);border:none;background:var(--color-gray-100);cursor:pointer;border-radius:var(--radius-md);transition:all .2s 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.2s ease}.btn-small.btn-primary{background:var(--color-primary-500);color:#fff}.btn-small.btn-primary:hover{background:var(--color-primary-600)}.btn-small.btn-secondary{background:var(--color-gray-200);color:var(--color-gray-700)}.btn-small.btn-secondary:hover{background:var(--color-gray-300)}.qr-card{background:#fff;border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-4);transition:all .3s ease;position:relative}.qr-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px #0000001f;border-color:var(--color-primary-300)}.qr-card-owner{position:absolute;top:var(--space-3);right:var(--space-3);z-index:5}.owner-badge{display:inline-block;padding:var(--space-1) var(--space-3);background:var(--color-primary);color:#fff;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;letter-spacing:.3px;box-shadow:0 2px 8px #667eea4d}.qr-image-container{width:100%;aspect-ratio:1;border:2px solid 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ease;display:flex;align-items:center;justify-content:center;color:var(--color-gray-600)}.icon-button:hover{background:var(--color-gray-100);color:var(--color-gray-900)}.edit-button:hover{background:var(--color-primary-50);color:var(--color-primary-600)}.delete-button:hover{background:var(--color-error-50);color:var(--color-error-600)}.qr-edit-form{display:flex;flex-direction:column;gap:var(--space-3)}.qr-edit-form .form-group{margin-bottom:0}.qr-edit-form .form-group label{font-size:.85rem}.qr-edit-form .form-group input{font-size:.9rem;padding:var(--space-2) var(--space-3)}.empty-state-small{text-align:center;padding:var(--space-10) var(--space-4);color:var(--color-gray-500)}.empty-state-small svg{margin:0 auto var(--space-3) auto}.empty-state-small p{margin:0 0 var(--space-2) 0;font-weight:600;font-size:1.1rem}.empty-state-small small{color:var(--color-gray-400);font-size:.9rem}@media(max-width:640px){.filter-buttons{display:grid;grid-template-columns:1fr 1fr}.member-card:hover{transform:none}.expense-detail-info{flex-direction:column;gap:var(--space-2)}.qr-codes-grid{grid-template-columns:1fr}.qr-card:hover,.qr-code-card:hover{transform:none}.header-actions{flex-direction:column;align-items:stretch}.member-selector-inline{flex-direction:column}.member-select-compact{width:100%}.form-actions{flex-direction:column}.form-actions button{width:100%}}.qr-modal-overlay{position:fixed;inset:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:9999;padding:var(--space-4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease}.qr-modal-content{background:#fff;border-radius:var(--radius-xl);max-width:500px;width:100%;max-height:90vh;overflow:auto;position:relative;box-shadow:0 20px 60px #0000004d;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.qr-modal-close{position:absolute;top:var(--space-4);right:var(--space-4);background:#fff;border:2px solid var(--color-gray-200);border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;z-index:10;color:var(--color-gray-700)}.qr-modal-close:hover{background:var(--color-error-50);border-color:var(--color-error-300);color:var(--color-error-600);transform:rotate(90deg)}.qr-modal-header{padding:var(--space-6) var(--space-6) var(--space-4);border-bottom:2px solid var(--color-gray-100)}.qr-modal-header h3{margin:0;font-size:1.5rem;color:var(--color-gray-900)}.qr-modal-image{padding:var(--space-8);display:flex;align-items:center;justify-content:center;background:var(--color-gray-50)}.qr-modal-image img{max-width:100%;height:auto;border-radius:var(--radius-md);box-shadow:0 4px 12px #0000001a}.qr-modal-instruction{text-align:center;padding:var(--space-4) var(--space-6) var(--space-6);color:var(--color-gray-600);font-size:.95rem;margin:0}@media(max-width:640px){.qr-modal-overlay{padding:var(--space-2)}.qr-modal-content{max-width:100%}.qr-modal-image{padding:var(--space-4)}}.archive-page{display:flex;flex-direction:column;gap:var(--space-8)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-6)}.stat-card{background:#fff;border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);border:1px solid var(--color-gray-200);display:flex;align-items:center;gap:var(--space-5);transition:all .3s cubic-bezier(.4,0,.2,1)}.stat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--color-primary)}.stat-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:var(--color-primary);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.stat-content{flex:1}.stat-content h3{margin:0 0 var(--space-2) 0;font-size:var(--font-size-sm);color:var(--color-gray-600);font-weight:600;text-transform:uppercase;letter-spacing:.05em}.stat-value{margin:0;font-size:2rem;font-weight:800;color:var(--color-gray-900);letter-spacing:-.02em}.archive-controls{display:flex;flex-direction:column;gap:var(--space-6)}.search-box{display:flex;align-items:center;gap:var(--space-3);background:var(--color-gray-50);border:2px solid var(--color-gray-200);border-radius:var(--radius-md);padding:var(--space-4) var(--space-5);transition:all .2s ease}.search-box:focus-within{border-color:var(--color-primary);background:#fff;box-shadow:0 0 0 3px #667eea1a}.search-box input{flex:1;border:none;background:transparent;font-size:var(--font-size-base);color:var(--color-gray-900);outline:none;padding:0}.search-box input::placeholder{color:var(--color-gray-500)}.filter-controls{display:flex;flex-wrap:wrap;gap:var(--space-4);align-items:center}.filter-group{display:flex;align-items:center;gap:var(--space-2);background:var(--color-gray-50);border:2px solid var(--color-gray-200);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);transition:all .2s ease}.filter-group:focus-within{border-color:var(--color-primary);background:#fff}.filter-group select{border:none;background:transparent;font-size:var(--font-size-base);color:var(--color-gray-900);font-weight:500;outline:none;cursor:pointer;padding:0;padding-right:var(--space-3)}.date-input{border:2px solid var(--color-gray-200);background:var(--color-gray-50);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);font-size:var(--font-size-base);color:var(--color-gray-900);font-weight:500;outline:none;transition:all .2s ease}.date-input:focus{border-color:var(--color-primary);background:#fff;box-shadow:0 0 0 3px #667eea1a}.transactions-list{display:flex;flex-direction:column;gap:var(--space-4)}.transaction-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding:var(--space-6);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);background:var(--color-gray-50);transition:all .3s cubic-bezier(.4,0,.2,1)}.transaction-item:hover{background:#fff;border-color:var(--color-primary-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}.transaction-main{display:flex;align-items:flex-start;gap:var(--space-5);flex:1;min-width:0}.transaction-icon{width:48px;height:48px;border-radius:var(--radius-md);background:#0f4c75;display:flex;align-items:center;justify-content:center;flex-shrink:0}.transaction-details{flex:1;min-width:0}.transaction-details h3{margin:0 0 var(--space-3) 0;font-size:var(--font-size-lg);font-weight:700;color:var(--color-gray-900);word-break:break-word}.transaction-meta{display:flex;flex-wrap:wrap;gap:var(--space-4);margin-bottom:var(--space-3)}.meta-item{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-gray-600)}.meta-item strong{color:var(--color-gray-900);font-weight:600}.transaction-breakdown{display:flex;flex-wrap:wrap;gap:var(--space-4);font-size:var(--font-size-sm);color:var(--color-gray-600);padding-top:var(--space-3);border-top:1px solid var(--color-gray-200)}.transaction-breakdown span{display:flex;align-items:center;gap:var(--space-2)}.transaction-actions{display:flex;flex-direction:column;align-items:flex-end;gap:var(--space-4);flex-shrink:0}.transaction-amount{font-size:1.5rem;font-weight:800;color:#0f4c75;letter-spacing:-.02em;white-space:nowrap}.reverse-btn{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);background:var(--color-gray-50);border:2px solid var(--color-gray-300);border-radius:var(--radius-md);color:var(--color-gray-700);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:all .2s ease;white-space:nowrap}.reverse-btn:hover{background:var(--color-warning-50);border-color:var(--color-warning-500);color:var(--color-warning-700);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.reverse-btn:active{transform:translateY(0)}.member-summary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-5);margin-top:var(--space-5)}.member-summary-card{background:var(--color-gray-50);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);padding:var(--space-6);transition:all .3s cubic-bezier(.4,0,.2,1)}.member-summary-card:hover{background:#fff;border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.member-summary-card h3{margin:0 0 var(--space-5) 0;font-size:var(--font-size-xl);font-weight:700;color:var(--color-gray-900)}.member-summary-stats{display:flex;flex-direction:column;gap:var(--space-4)}.summary-stat{display:flex;justify-content:space-between;align-items:center;padding:var(--space-3) 0;border-bottom:1px solid var(--color-gray-200)}.summary-stat:last-child{border-bottom:none}.summary-label{font-size:var(--font-size-sm);color:var(--color-gray-600);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.summary-value{font-size:var(--font-size-lg);font-weight:700;color:var(--color-gray-900)}.reverse-modal{max-width:480px}.reverse-modal .modal-header{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-8) var(--space-6) var(--space-6);border-bottom:2px solid var(--color-gray-200)}.reverse-modal .modal-header h2{margin:0;font-size:1.75rem;color:var(--color-gray-900)}.reverse-modal .modal-body{padding:var(--space-6)}.warning-text{text-align:center;font-size:var(--font-size-lg);font-weight:600;color:var(--color-gray-700);margin:0 0 var(--space-6) 0}.reverse-details{background:var(--color-gray-50);border-radius:var(--radius-md);padding:var(--space-5);margin-bottom:var(--space-6)}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:var(--space-3) 0;border-bottom:1px solid var(--color-gray-200)}.detail-row:last-child{border-bottom:none}.detail-row span{color:var(--color-gray-600);font-size:var(--font-size-sm)}.detail-row strong{color:var(--color-gray-900);font-weight:700;font-size:var(--font-size-base)}.warning-box{display:flex;gap:var(--space-3);padding:var(--space-4);background:var(--color-warning-50);border:2px solid var(--color-warning-300);border-radius:var(--radius-md);align-items:flex-start}.warning-box p{margin:0;font-size:var(--font-size-sm);color:var(--color-warning-800);line-height:1.5}.btn-danger{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-4) var(--space-6);background:var(--color-danger);color:#fff;border:none;border-radius:var(--radius-md);font-weight:700;font-size:var(--font-size-base);cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm)}.btn-danger:hover{background:#dc2626;box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-danger:active{transform:translateY(0)}.btn-danger:disabled{opacity:.6;cursor:not-allowed;transform:none}@media(max-width:1024px){.transaction-item{flex-direction:column;align-items:stretch}.transaction-actions{flex-direction:row;justify-content:space-between;align-items:center}}@media(max-width:640px){.stats-grid{grid-template-columns:1fr}.filter-controls{flex-direction:column;align-items:stretch}.filter-group{width:100%}.transaction-main{flex-direction:column;gap:var(--space-4)}.transaction-icon{align-self:flex-start}.member-summary-grid{grid-template-columns:1fr}.stat-value{font-size:1.5rem}.transaction-amount{font-size:1.25rem}.settlement-transaction{flex-direction:column;align-items:stretch;gap:var(--space-5)}.settlement-flow{flex-direction:column;gap:var(--space-4)}.settlement-person{min-width:auto;align-items:center;text-align:center}.settlement-arrow{transform:rotate(90deg)}.settlement-actions-group{align-items:stretch;gap:var(--space-4)}.settlement-amount-large{text-align:center;font-size:1.5rem}.mark-paid-btn{width:100%;justify-content:center;padding:var(--space-4);font-size:var(--font-size-base)}.balance-amount{font-size:1.25rem}.member-name{font-size:var(--font-size-lg)}}@media(max-width:768px){.sidebar{display:none}.main-container{margin-left:0;padding-bottom:80px}.sidebar-footer{display:none}.app-header{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4)}.app-header h1{font-size:var(--font-size-xl);flex:1}}@media(max-width:640px){.qr-modal{max-width:95vw;margin:var(--space-4)}.qr-codes-list{grid-template-columns:1fr}.member-actions{flex-direction:column;gap:var(--space-2)}.member-qr-btn{width:100%;justify-content:center}.toggle-switch{align-self:center}.member-card{flex-direction:column;text-align:center;gap:var(--space-3)}.member-avatar{align-self:center}.member-info{align-items:center}}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:2px solid var(--color-gray-200);padding:var(--space-2) var(--space-4);z-index:1000;box-shadow:0 -4px 20px #0000001a}@media(max-width:768px){.bottom-nav{display:flex;justify-content:space-around;align-items:center;gap:var(--space-2)}}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-1);background:none;border:none;color:var(--color-gray-600);cursor:pointer;transition:all 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scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.groups-view{min-height:100vh;padding:0;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.view-header{background:#ffffff1a;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:32px 48px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.15);box-shadow:0 4px 24px #0000001a}.header-content h1{font-size:36px;font-weight:800;color:#fff;margin:0 0 4px;letter-spacing:-.5px}.header-content p{color:#ffffffd9;font-size:15px;margin:0}.create-button{padding:14px 28px;background:#fff;color:#667eea;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 16px #00000026}.create-button:hover{transform:translateY(-2px);box-shadow:0 8px 24px #00000040;background:#f8f9ff}.create-button:active{transform:translateY(0)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 120px);text-align:center;padding:48px;animation:slideUp .6s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.empty-icon{width:140px;height:140px;background:#ffffff26;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:32px;color:#fff;box-shadow:0 8px 32px #0000001a}.empty-state h2{font-size:32px;font-weight:700;color:#fff;margin:0 0 12px}.empty-state p{color:#ffffffd9;font-size:16px;margin:0 0 40px;max-width:400px;line-height:1.6}.empty-cta-button{padding:18px 36px;background:#fff;color:#667eea;border:none;border-radius:14px;font-size:16px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:10px;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 12px 40px #0003}.empty-cta-button:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0000004d;background:#f8f9ff}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;padding:48px;max-width:1400px;margin:0 auto;animation:slideUp .6s ease-out}.group-card{background:#fff;border-radius:20px;padding:28px;cursor:pointer;box-shadow:0 4px 20px #0000001a;display:flex;align-items:center;gap:20px;position:relative}.card-icon{width:64px;height:64px;min-width:64px;background:var(--color-primary);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 16px #667eea4d}.card-content{flex:1}.card-content h3{font-size:20px;font-weight:700;color:#1a202c;margin:0 0 8px;letter-spacing:-.3px}.card-info{display:flex;align-items:center;gap:8px}.member-count{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--color-primary);color:#fff;font-size:13px;font-weight:600;border-radius:20px;box-shadow:0 2px 8px #667eea40}.card-content p{color:#a0aec0;font-size:14px;margin:0}.card-action{color:#cbd5e0}.create-card{border:3px dashed rgba(102,126,234,.3);background:#ffffff80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.create-card:hover{border-color:#667eea99;background:#fff}.create-card .card-icon{background:#667eea26;color:#667eea;box-shadow:none}.password-modal-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000;animation:fadeIn .3s ease-out}.password-modal{background:#fff;border-radius:24px;padding:48px;max-width:480px;width:100%;box-shadow:0 24px 80px #0000004d;animation:modalSlideUp .4s cubic-bezier(.4,0,.2,1);position:relative}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-icon{width:80px;height:80px;background:var(--color-primary);border-radius:20px;display:flex;align-items:center;justify-content:center;color:#fff;margin:0 auto 32px;box-shadow:0 8px 24px #667eea66}.modal-header{text-align:center;margin-bottom:32px}.modal-header h2{font-size:28px;font-weight:700;color:#1a202c;margin:0 0 8px;letter-spacing:-.5px}.modal-header p{color:#718096;font-size:15px;margin:0}.password-form{display:flex;flex-direction:column;gap:24px}.input-wrapper{position:relative}.input-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:#a0aec0;pointer-events:none;transition:color .2s}.input-wrapper input{width:100%;padding:16px 18px 16px 52px;border:2px solid #e2e8f0;border-radius:12px;font-size:16px;transition:all .3s cubic-bezier(.4,0,.2,1);box-sizing:border-box}.input-wrapper input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 4px #667eea1a}.input-wrapper input:focus+.input-icon,.input-wrapper:has(input:focus) .input-icon{color:#667eea}.error-message{padding:14px 18px;background:#fff5f5;border:1px solid #fc8181;border-radius:10px;color:#c53030;font-size:14px;display:flex;align-items:center;gap:8px;animation:shake .4s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}.modal-actions{display:flex;gap:12px;margin-top:8px}.btn-cancel,.btn-submit{flex:1;padding:16px;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:8px}.btn-cancel{background:#f7fafc;color:#4a5568;border:2px solid #e2e8f0}.btn-cancel:hover:not(:disabled){background:#edf2f7;border-color:#cbd5e0}.btn-submit{background:var(--color-primary);color:#fff;box-shadow:0 4px 16px #667eea66}.btn-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 24px #667eea80}.btn-submit:active:not(:disabled){transform:translateY(0)}.btn-cancel:disabled,.btn-submit:disabled{opacity:.6;cursor:not-allowed}.group-selection-header{text-align:center;margin-bottom:32px}.group-selection-header h1{font-size:32px;font-weight:700;color:#1a202c;margin:0 0 8px;letter-spacing:-.5px}.group-selection-header p{color:#718096;font-size:15px;margin:0;font-weight:400}.create-group-form{display:flex;flex-direction:column;gap:4px}.create-group-form .form-group{margin-bottom:20px}.create-group-form label{display:flex;align-items:center;gap:8px;font-weight:500;color:#4a5568;margin-bottom:10px;font-size:14px}.create-group-form label svg{color:#718096}.create-group-form input{width:100%;padding:14px 18px;border:2px solid #5c7cba;border-radius:12px;font-size:15px;transition:all .2s ease;background:#fff;color:#2d3748;box-sizing:border-box}.create-group-form input::placeholder{color:#a0aec0;font-size:14px}.create-group-form 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#e2e8f0}.btn-secondary:hover:not(:disabled){background:#f7fafc;border-color:#cbd5e0;transform:translateY(-1px)}.btn-secondary:active:not(:disabled){transform:translateY(0);background:#edf2f7}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.create-group-form .error-message{background:#fed7d7;color:#c53030;padding:12px 16px;border-radius:8px;font-size:14px;margin-bottom:16px;border:1px solid #fc8181}.groups-list::-webkit-scrollbar{width:8px}.groups-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}.groups-list::-webkit-scrollbar-thumb{background:#cbd5e0;border-radius:4px}.groups-list::-webkit-scrollbar-thumb:hover{background:#a0aec0}@media(max-width:600px){.group-selection-card{padding:24px}.group-selection-header h1{font-size:28px}}@media(max-width:1024px){.kanban-board{flex-direction:column;padding:20px}.kanban-column{min-width:100%;margin-bottom:20px}.kanban-header{flex-direction:column;gap:16px;padding:20px;text-align:center}.create-group-button-header{width:100%;justify-content:center}}.form-group{margin-bottom:24px}.form-group label{display:block;font-weight:600;color:#2d3748;margin-bottom:8px;font-size:14px}.form-group input{width:100%;padding:14px 18px;border:2px solid #e2e8f0;border-radius:12px;font-size:16px;transition:all .3s cubic-bezier(.4,0,.2,1);box-sizing:border-box}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 4px #667eea1a}.create-group-form{background:#fff;border-radius:24px;padding:48px;max-width:540px;width:100%;margin:80px auto;box-shadow:0 24px 80px #0003;animation:slideUp .5s ease-out}.form-header{text-align:center;margin-bottom:40px}.form-header h2{font-size:28px;font-weight:700;color:#1a202c;margin:0 0 8px}.form-header p{color:#718096;font-size:15px;margin:0}@media(max-width:1024px){.cards-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;padding:32px}}@media(max-width:768px){.view-header{flex-direction:column;gap:20px;padding:24px;text-align:center}.header-content h1{font-size:28px}.create-button{width:100%;justify-content:center}.cards-grid{grid-template-columns:1fr;gap:16px;padding:24px}.group-card{padding:24px}.card-icon{width:56px;height:56px;min-width:56px}.card-content h3{font-size:18px}.password-modal{padding:32px 24px}.modal-icon{width:64px;height:64px}.modal-header h2{font-size:24px}.empty-state{padding:32px 20px}.empty-icon{width:100px;height:100px}.empty-state h2{font-size:24px}.create-group-form{padding:32px 24px;margin:40px 20px}}@media(max-width:480px){.modal-actions,.form-actions{flex-direction:column}.btn-cancel,.btn-submit,.btn-secondary,.btn-primary{width:100%}}