:root{--primary: #10b981;--primary-dark: #059669;--primary-light: #d1fae5;--primary-text: #064e3b;--danger: #ef4444;--danger-light: #fee2e2;--danger-text: #991b1b;--bg: #f0fdf4;--surface: #ffffff;--border: #e8eaed;--text: #0f1117;--text-secondary: #6b7280;--text-muted: #9ca3af;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--r-sm: 10px;--r-md: 14px;--r-lg: 16px;--header-h: 56px;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5;color:var(--text);-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);overscroll-behavior:none}ul,ol{list-style:none}img{display:block;max-width:100%}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}#root{min-height:100svh}.page{max-width:520px;margin:0 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var(--border);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:10px;transition:box-shadow .15s,transform .15s}.landing-feature-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.landing-feature-icon{width:48px;height:48px;border-radius:var(--r-md);background:var(--primary-light);color:var(--primary-dark);display:inline-flex;align-items:center;justify-content:center}.landing-feature-title{font-size:17px;font-weight:700;color:var(--text)}.landing-feature-blurb{font-size:14px;color:var(--text-secondary);line-height:1.5}.landing-footer-cta{padding:56px 24px 80px;text-align:center;background:var(--surface);border-top:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:12px}.landing-footer-subtitle{font-size:15px;color:var(--text-secondary)}.landing-footer-cta .landing-section-title{margin-bottom:0}@media(max-width:560px){.landing-hero{padding:56px 20px 48px}.landing-title{font-size:34px}.landing-tagline{font-size:16px}.landing-features{padding:48px 20px}.landing-section-title{font-size:24px;margin-bottom:28px}.landing-footer-cta{padding:40px 20px 56px}}.group-list{padding:16px;display:flex;flex-direction:column;gap:10px}.group-card{display:flex;align-items:center;gap:12px;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:16px;text-align:left;box-shadow:0 1px 3px #0000000d;transition:box-shadow .18s,transform .12s}.group-card:hover{box-shadow:0 4px 14px #00000014;transform:translateY(-1px)}.group-card:active{transform:scale(.99);box-shadow:var(--shadow-sm)}.group-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.group-card{cursor:pointer}.group-card-body{flex:1;min-width:0}.group-card-name{font-size:16px;font-weight:700;letter-spacing:-.2px;color:var(--text);margin-bottom:4px}.group-card-balance{font-size:13px}.group-card-kebab{width:32px;height:32px;color:var(--text-muted);margin-left:-4px}.group-card-kebab:hover{background:var(--border)}.group-list-item{position:relative}.action-menu{position:absolute;top:calc(100% - 6px);right:12px;z-index:20;min-width:200px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);box-shadow:var(--shadow-md);padding:4px}.action-menu-item{display:block;width:100%;text-align:left;padding:10px 12px;background:transparent;border:none;border-radius:6px;font:inherit;font-size:14px;color:var(--text);cursor:pointer}.action-menu-item:hover{background:var(--border)}.action-menu-item-danger{color:var(--danger)}.action-menu-rename{display:flex;flex-direction:column;gap:8px;padding:8px}.action-menu-rename-actions{display:flex;gap:8px;justify-content:flex-end}.archived-section{padding:8px 16px 16px;border-top:1px solid var(--border);margin-top:8px}.archived-toggle{display:block;width:100%;text-align:left;background:transparent;border:none;padding:8px 4px;font:inherit;font-size:13px;font-weight:600;color:var(--text-secondary);cursor:pointer}.archived-toggle:hover{color:var(--text)}.archived-list{list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:6px}.archived-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);font-size:14px}.archived-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary)}.balance-positive{color:#059669}.balance-negative{color:var(--danger)}.balance-neutral{color:var(--text-muted)}.member-stack{display:flex;flex-direction:row-reverse;margin-right:4px}.member-stack .avatar{margin-left:-8px}.member-stack-overflow{width:28px;height:28px;border-radius:50%;background:var(--border);color:var(--text-secondary);font-size:10px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-left:-8px;border:2px solid white}.fab{position:fixed;bottom:calc(24px + env(safe-area-inset-bottom,0px));right:50%;transform:translate(calc(50% + 220px));width:56px;height:56px;border-radius:50%;background:var(--text);color:#fff;border:none;box-shadow:0 2px 8px #0000002e,0 1px 3px #0000001f;display:flex;align-items:center;justify-content:center;z-index:50;transition:transform .15s,box-shadow .15s,background .15s}.fab:hover{background:#1f2937;box-shadow:0 4px 16px #00000038}.fab:active{transform:translate(calc(50% + 220px)) scale(.93)}@media(max-width:520px){.fab{right:20px;transform:none}.fab:active{transform:scale(.93)}}.tabs{display:flex;background:var(--bg);border-bottom:1px solid var(--border);padding:0 16px;position:sticky;top:var(--header-h);z-index:10}.tab{flex:1;height:46px;background:none;border:none;font-size:13px;font-weight:600;letter-spacing:.1px;color:var(--text-secondary);border-bottom:2px solid transparent;transition:color .15s,border-color .15s;display:flex;align-items:center;justify-content:center;gap:6px}.tab:hover{color:var(--text)}.tab-active{color:var(--text);border-bottom-color:var(--text)}.tab-badge{background:var(--bg);color:var(--text-secondary);border-radius:999px;font-size:11px;font-weight:700;padding:1px 6px;min-width:18px;text-align:center}.tab-panel{padding:16px}.expense-list{display:flex;flex-direction:column;gap:1px;background:var(--border);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--border);box-shadow:0 1px 3px #0000000a}.expense-item{display:flex;align-items:center;gap:12px;background:var(--surface);padding:13px 16px}.expense-item-clickable{cursor:pointer;transition:background .12s}.expense-item-clickable:hover{background:var(--surface-hover, #f5f5f7)}.expense-item-clickable:focus-visible{outline:2px solid var(--primary, #2563eb);outline-offset:-2px}.expense-icon{flex-shrink:0}.expense-category-inline{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;flex-shrink:0}.expense-category-icon{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.expense-body{flex:1;min-width:0}.expense-description{font-size:15px;font-weight:600;letter-spacing:-.15px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.expense-meta{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:4px;margin-top:3px}.dot{color:var(--border)}.expense-right{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.expense-share{font-size:12px;font-weight:700;text-align:right;letter-spacing:-.1px}.expense-share-paid{color:var(--primary)}.expense-share-owe{color:var(--danger)}.expense-share-neutral{color:var(--text-muted)}.balance-summary{display:flex;flex-direction:column;gap:16px}.balance-per-person{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}.balance-row{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--bg)}.balance-row:last-child{border-bottom:none}.balance-row-name{flex:1;font-size:14px;font-weight:600}.balance-row-amount{font-size:17px;font-weight:800;letter-spacing:-.4px}.settled-banner{display:flex;align-items:center;justify-content:center;gap:8px;padding:20px;background:linear-gradient(135deg,#d1fae5,#a7f3d0 60%,#6ee7b7);border:1px solid rgba(16,185,129,.2);border-radius:var(--r-md);color:var(--primary-text);font-weight:600;font-size:15px}.settled-banner-emoji{font-size:20px}.debts-section{display:flex;flex-direction:column;gap:8px}.debts-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);margin-bottom:4px}.debt-row{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:13px 16px;box-shadow:0 1px 3px #0000000a}.debt-text{flex:1;font-size:14px;font-weight:500}.debt-date{color:var(--text-muted);font-weight:400}.debt-amount{font-size:16px;font-weight:800;letter-spacing:-.3px;color:var(--danger)}.member-chips{display:flex;flex-wrap:wrap;gap:8px}.member-chip{height:36px;padding:0 16px;border-radius:999px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-secondary);font-size:14px;font-weight:600;transition:all .15s}.member-chip-selected{background:var(--primary);border-color:var(--primary);color:#fff}.split-members{display:flex;flex-direction:column;gap:8px}.split-member-row{display:flex;align-items:center;gap:10px;padding:4px 0}.split-checkbox{width:18px;height:18px;accent-color:var(--primary);flex-shrink:0}.split-member-name{flex:1;font-size:15px;font-weight:500}.split-value-input{width:88px!important;height:36px;font-size:14px;padding:0 10px}.split-preview{font-size:13px;font-weight:700;color:var(--primary-text);min-width:64px;text-align:right}.expense-currency-row{display:flex;gap:8px;align-items:center}.expense-currency-select{width:90px;flex-shrink:0;padding-right:28px}.rate-row{display:flex;align-items:center;gap:6px;margin-top:6px}.rate-label{font-size:13px;color:var(--secondary-text);white-space:nowrap}.rate-input{width:96px!important;height:34px;font-size:14px;padding:0 10px}.rate-hint{font-size:12px;color:var(--secondary-text)}.split-type-tabs{display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg);border-radius:var(--r-sm);padding:3px;gap:2px}.split-type-tab{height:34px;border-radius:6px;border:none;background:none;font-size:13px;font-weight:700;color:var(--text-secondary);transition:all .15s}.split-type-tab-active{background:var(--surface);color:var(--primary);box-shadow:var(--shadow-sm)}.settings-section{margin-bottom:24px}.settings-section-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);margin-bottom:12px}.settings-divider{border:none;border-top:1px solid var(--border);margin:20px 0}.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}.toggle-row:last-child{border-bottom:none}.toggle-label{font-size:15px;color:var(--text)}.toggle-label-sub{font-size:13px;color:var(--text-secondary);margin-top:2px}.toggle-switch{position:relative;display:inline-block;width:44px;height:26px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-track{position:absolute;inset:0;background:var(--border);border-radius:13px;cursor:pointer;transition:background .2s}.toggle-switch input:checked+.toggle-track{background:var(--primary)}.toggle-switch input:disabled+.toggle-track{opacity:.4;cursor:not-allowed}.toggle-track:after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 1px 3px #0003}.toggle-switch input:checked+.toggle-track:after{transform:translate(18px)}.notif-blocked-notice{font-size:13px;color:var(--text-secondary);background:var(--surface-muted);border-radius:var(--r-md);padding:10px 12px;line-height:1.5}.member-list{display:flex;flex-direction:column;gap:2px}.member-list-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--bg)}.member-list-item:last-child{border-bottom:none}.member-info{flex:1;min-width:0}.member-name{display:block;font-size:15px;font-weight:600}.member-email{display:block;font-size:12px;color:var(--text-muted)}.badge{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;background:var(--primary-light);color:var(--primary-text);border-radius:4px;padding:2px 6px}.badge-muted{background:var(--surface-muted, #e5e7eb);color:var(--text-muted, #6b7280);margin-left:6px}.family-name-form{display:flex;flex:1;min-width:0;gap:8px;align-items:center}.family-name-input{min-width:0}.family-select{width:136px;flex-shrink:0;padding-right:32px}.family-count-badge{white-space:nowrap}.member-remove-btn{width:28px;height:28px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-muted);font-size:18px;line-height:1;cursor:pointer;padding:0;display:inline-flex;align-items:center;justify-content:center}.member-remove-btn:hover:not(:disabled){background:#fee2e2;border-color:#fca5a5;color:#b91c1c}.member-remove-btn:disabled{opacity:.35;cursor:not-allowed}.invite-link-row{display:flex;align-items:center;gap:10px;background:var(--bg);border-radius:var(--r-sm);padding:10px 12px}.invite-link-text{flex:1;font-size:12px;color:var(--text-secondary);word-break:break-all}.empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;padding:48px 24px;gap:12px}.empty-state-sm{padding:32px 24px;color:var(--text-muted);font-size:15px}.empty-state-icon{width:72px;height:72px;border-radius:20px;background:var(--bg);border:1px solid var(--border);color:var(--text-secondary);display:flex;align-items:center;justify-content:center}.empty-state-title{font-size:22px;font-weight:700}.empty-state-text{font-size:15px;color:var(--text-secondary);max-width:280px}.app-shell{display:flex;min-height:100svh;background:var(--bg)}.app-sidebar{width:100%;background:var(--surface);display:flex;flex-direction:column;min-height:100svh;position:relative}.app-main{width:100%;background:var(--surface);min-width:0;min-height:100svh;position:relative}.sidebar-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:var(--primary);color:#fff;display:flex;align-items:center;padding:0 8px 0 16px;gap:8px;box-shadow:0 1px 4px #0000001f;flex-shrink:0}.sidebar-header-title{flex:1;font-size:17px;font-weight:700;letter-spacing:-.3px;color:#fff;display:flex;align-items:center;gap:8px}.sidebar-content{flex:1;overflow-y:auto;padding-bottom:80px}.pane-empty{display:flex;align-items:center;justify-content:center;min-height:100svh;padding:24px}.group-card-selected{border-color:var(--primary)!important;box-shadow:0 0 0 2px var(--primary-light),var(--shadow-sm)!important}@media(max-width:959.98px){.app-shell[data-view=home] .app-main,.app-shell[data-view=group] .app-sidebar{display:none}}@media(min-width:960px){.app-shell{max-width:1280px;margin:0 auto;box-shadow:0 0 0 1px var(--border)}.app-sidebar{flex:0 0 340px;border-right:1px solid var(--border);position:sticky;top:0;height:100svh;min-height:0;overflow:hidden}.app-main{flex:1}.app-main .page{max-width:none;box-shadow:none;background:transparent}.app-main .header{transform:none;max-width:none;width:auto;left:max(0px,calc((100vw - 1280px)/2 + 340px));right:max(0px,calc((100vw - 1280px)/2))}.app-main .btn-back{display:none}.app-main .fab{right:max(24px,calc((100vw - 1280px)/2 + 24px));left:auto;transform:none}.app-main .fab:active{transform:scale(.93)}.fab-sidebar{position:absolute;right:20px;bottom:24px;left:auto;transform:none}.fab-sidebar:active{transform:scale(.93)}.app-main .tabs{padding-left:24px;padding-right:24px}.app-main .tab-panel{padding:20px 24px;max-width:720px}}.install-prompt{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom,0px));left:50%;transform:translate(-50%);width:calc(100% - 32px);max-width:480px;background:var(--text);color:#fff;border-radius:var(--r-md);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;z-index:300;box-shadow:0 8px 24px #00000040;animation:slideUp .3s cubic-bezier(.32,.72,0,1)}.install-prompt-content{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.install-prompt-icon{width:36px;height:36px;border-radius:8px;flex-shrink:0}.install-prompt-text{display:flex;flex-direction:column;gap:2px;font-size:13px;min-width:0}.install-prompt-text strong{font-size:14px}.install-prompt-close{background:#ffffff26!important;color:#fff!important;border-radius:var(--r-sm)!important;flex-shrink:0}.import-step{display:flex;flex-direction:column;gap:14px}.import-step-actions{display:flex;justify-content:space-between;gap:12px;margin-top:4px}.import-file-btn{cursor:pointer}.import-mapping-list{display:flex;flex-direction:column;gap:8px}.import-mapping-row{display:flex;flex-direction:column;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--r-sm);background:#fafafa}.import-mapping-main{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:8px}.import-mapping-sub{padding-left:8px;border-left:2px solid var(--border);margin-left:2px}.import-mapping-placeholder-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}.import-mapping-placeholder-label .form-input-sm{flex:1}.import-mapping-hint-muted{font-size:12px;color:var(--text-muted)}.form-input-sm{height:34px;font-size:13px;padding:6px 10px}.import-mapping-csv{font-weight:600;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.import-mapping-arrow{color:var(--text-muted)}.import-warnings{display:flex;flex-direction:column;gap:6px}.import-preview-list{display:flex;flex-direction:column;gap:10px;max-height:400px;overflow-y:auto;padding-right:4px}.import-preview-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:10px 12px;display:flex;flex-direction:column;gap:8px}.import-preview-row.import-row-skipped{opacity:.5}.import-preview-row-main{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:10px;font-size:14px}.import-preview-date{font-size:12px;color:var(--text-muted);white-space:nowrap}.import-preview-desc{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.import-preview-amount{font-weight:600;white-space:nowrap}.import-preview-row-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.import-preview-payer-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary);flex:1;min-width:180px}.form-select-sm{height:34px;font-size:13px}.import-preview-skip{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary);cursor:pointer}.import-preview-warning{font-size:12px}.import-preview-summary{display:flex;flex-direction:column;gap:4px;font-size:14px;padding:10px 12px;background:var(--primary-light);border-radius:var(--r-md)}