:root{--bg: #0f1115;--surface: #1a1d24;--surface-2: #232730;--border: #2e333d;--text: #e8eaed;--muted: #9aa0aa;--accent: #3ddc97;--accent-dark: #2bb87b;--danger: #ff6b6b;--positive: #3ddc97;--negative: #ff8a8a;--radius: 12px;--shadow: 0 6px 24px rgba(0, 0, 0, .3)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent)}.container{max-width:880px;margin:0 auto;padding:calc(24px + env(safe-area-inset-top,0px)) calc(20px + env(safe-area-inset-right,0px)) calc(80px + env(safe-area-inset-bottom,0px)) calc(20px + env(safe-area-inset-left,0px))}.brand{display:flex;align-items:center;gap:10px;margin-bottom:4px}.install-btn{font-size:.82rem;padding:7px 12px;white-space:nowrap}.brand h1{font-size:1.6rem;margin:0;letter-spacing:-.02em;min-width:0;overflow-wrap:anywhere}.brand .logo{font-size:1.6rem}.tagline{color:var(--muted);margin:0 0 28px;font-size:.95rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}.card h2{margin:0 0 16px;font-size:1.15rem}.card h3{margin:0 0 12px;font-size:1rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}input,select,textarea{width:100%;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:11px 12px;font-size:16px;font-family:inherit;max-width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}.field{margin-bottom:14px}.row{display:flex;gap:12px;flex-wrap:wrap}.row>*{flex:1;min-width:140px}button{background:var(--accent);color:#06281c;border:none;border-radius:8px;padding:10px 18px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s ease}button:hover{background:var(--accent-dark)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}button.secondary:hover{background:var(--border)}button.link{background:none;color:var(--danger);padding:4px 8px;font-weight:500}button.link:hover{background:#ff6b6b1a}.error{background:#ff6b6b1f;border:1px solid var(--danger);color:var(--negative);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.share-box{display:flex;gap:8px;align-items:center}.share-box input{flex:1;min-width:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem}.share-box button{flex:0 0 auto}.list-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--border)}.list-item>div:first-child{min-width:0;overflow-wrap:anywhere}.list-item:last-child{border-bottom:none}.list-item .meta{color:var(--muted);font-size:.82rem}.amount{font-variant-numeric:tabular-nums;font-weight:600}.pos{color:var(--positive)}.neg{color:var(--negative)}.pill{display:inline-block;background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:2px 10px;font-size:.75rem;color:var(--muted);margin-left:8px}.settle-line{display:flex;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}.settle-line:last-child{border-bottom:none}.muted{color:var(--muted)}.empty{color:var(--muted);font-size:.9rem;padding:8px 0}.participant-grid{display:grid;grid-template-columns:1fr auto;gap:8px 12px;align-items:center;margin-top:8px}.participant-grid .name{font-size:.92rem}.participant-grid input[type=text],.participant-grid input[type=number]{width:110px}.checkbox-row{display:flex;align-items:center;gap:8px}.checkbox-row input[type=checkbox]{width:auto}.back-link{display:inline-block;margin-bottom:16px;font-size:.9rem}.spacer{height:8px}.toast{font-size:.85rem;color:var(--accent);margin-left:8px}.toast-banner{position:sticky;top:8px;z-index:50;background:var(--surface-2);border:1px solid var(--accent);color:var(--text);padding:10px 14px;border-radius:10px;margin-bottom:12px;box-shadow:var(--shadow);font-size:.9rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.modal{width:100%;max-width:420px;margin:0}.identity-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.identity-list button{flex:0 0 auto}.divider-text{color:var(--muted);font-size:.8rem;text-align:center;margin:10px 0}.group-avatar{width:44px;height:44px;border-radius:12px;object-fit:cover;border:1px solid var(--border)}.avatar-edit{display:inline-flex;align-items:center;gap:8px;cursor:pointer;color:var(--muted);font-size:.82rem}.avatar-edit input[type=file]{display:none}.tabs{display:flex;gap:4px;position:sticky;top:0;background:var(--bg);padding:6px 0;margin-bottom:14px;z-index:40;overflow-x:auto;-webkit-overflow-scrolling:touch;border-bottom:1px solid var(--border)}.tab{flex:1 0 auto;background:none;color:var(--muted);border:none;border-bottom:2px solid transparent;border-radius:0;padding:10px 12px;font-weight:600;white-space:nowrap}.tab:hover{background:var(--surface-2)}.tab-active{color:var(--text);border-bottom-color:var(--accent)}.fab{position:fixed;bottom:calc(20px + env(safe-area-inset-bottom,0px));inset-inline-end:calc(20px + env(safe-area-inset-right,0px));z-index:60;border-radius:999px;padding:14px 20px;font-size:.95rem;font-weight:700;box-shadow:0 8px 24px #00000059;display:inline-flex;align-items:center;gap:6px}@media(max-width:560px){.container{padding:16px 14px 72px}.card{padding:16px}.brand h1{font-size:1.3rem}.card h2{font-size:1.05rem}.row>*{min-width:100%}.list-item{flex-wrap:wrap}.settle-line button,.list-item button.link{padding:6px 10px}button{padding:11px 16px}.participants-head{flex-wrap:wrap}.danger-row{flex-direction:column;align-items:stretch;gap:8px}.exp-right{margin-inline-start:auto}.receipt-attached{flex-wrap:wrap}}@keyframes eq-fade-in{0%{opacity:0}to{opacity:1}}@keyframes eq-rise-in{0%{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes eq-slide-down{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes eq-row-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@keyframes eq-pulse{0%{background-color:transparent}35%{background-color:color-mix(in srgb,var(--accent) 22%,transparent)}to{background-color:transparent}}.modal-backdrop{animation:eq-fade-in .16s ease-out}.modal-backdrop>.modal,.modal-backdrop>.receipt-viewer{animation:eq-rise-in .22s cubic-bezier(.16,1,.3,1)}.toast-banner{animation:eq-slide-down .2s ease-out}.tab-pane{animation:eq-rise-in .18s ease-out}.row-enter{animation:eq-row-in .2s ease-out}.value-changed{animation:eq-pulse 1.2s ease-out;border-radius:6px}button{transition:transform 90ms ease-out,background-color .14s ease-out,border-color .14s ease-out,opacity .14s ease-out}button:active:not(:disabled){transform:scale(.97)}.fab{animation:eq-rise-in .26s cubic-bezier(.16,1,.3,1)}.fab:active{transform:scale(.95)}.bar-fill{transition:width .42s cubic-bezier(.16,1,.3,1)}.list-item,.settle-line{transition:background-color .14s ease-out}.share-nudge{border-color:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 35%,transparent)}@media(max-width:640px){.tabs{position:fixed;top:auto;bottom:0;left:0;right:0;margin:0;padding:4px 0 calc(4px + env(safe-area-inset-bottom,0px));background:var(--surface);border-top:1px solid var(--border);border-bottom:none;box-shadow:0 -4px 20px #00000040;overflow-x:visible;z-index:70}.tab{flex:1 1 0;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 2px;font-size:.68rem;border-bottom:none;border-top:2px solid transparent;min-width:0}.tab-active{border-top-color:var(--accent);border-bottom-color:transparent}.tab-icon{font-size:1.15rem;line-height:1}.container{padding-bottom:calc(140px + env(safe-area-inset-bottom,0px))}.fab{bottom:calc(76px + env(safe-area-inset-bottom,0px))}}.landing h2{font-size:1.5rem;line-height:1.25;margin-bottom:6px}.landing-sub{color:var(--muted);margin:0 0 16px;line-height:1.55}.landing-points{display:grid;gap:10px;margin-bottom:16px}.landing-point{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;line-height:1.5}.landing-point span:first-child{flex:0 0 auto;font-size:1.05rem}.landing-demo{width:100%;font-weight:700}.import-btn{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:11px 16px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);font-weight:600;font-size:.92rem;cursor:pointer}.import-btn:hover{background:var(--border)}.confirm-card{max-width:380px}.confirm-message{margin:0 0 18px;font-size:.98rem;line-height:1.55}.confirm-actions{display:flex;justify-content:flex-end;gap:10px}.confirm-actions button{flex:0 0 auto}@keyframes eq-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton{border-radius:8px;background:linear-gradient(90deg,var(--surface-2) 25%,color-mix(in srgb,var(--surface-2) 55%,var(--border)) 37%,var(--surface-2) 63%);background-size:200% 100%;animation:eq-shimmer 1.4s ease-in-out infinite}.skeleton-line{height:12px;margin:10px 0}.skeleton-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}.skeleton-avatar{width:34px;height:34px;border-radius:50%;flex:0 0 auto}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}button:active:not(:disabled),.fab:active{transform:none}}.chip-row{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 10px}.chip{background:var(--surface-2);border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:4px 10px;font-size:.8rem;cursor:pointer}.chip-on{background:var(--accent);color:#06281c;border-color:var(--accent);font-weight:600}.scan-cta{width:100%;background:var(--surface);border:1px dashed var(--accent);color:var(--accent);border-radius:var(--radius);padding:14px;margin-bottom:20px;font-weight:600;cursor:pointer}.scan-cta:hover{background:var(--surface-2)}.receipt-upload{display:inline-block;background:var(--accent);color:#06281c;border-radius:8px;padding:11px 18px;font-weight:600;cursor:pointer}.receipt-upload input{display:none}.receipt-item{border-bottom:1px solid var(--border);padding-bottom:8px;margin-bottom:8px}.bar-row{display:grid;grid-template-columns:minmax(80px,120px) 1fr auto;align-items:center;gap:8px;padding:5px 0}.bar-label{font-size:.85rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bar-track{background:var(--surface-2);border-radius:6px;height:12px;overflow:hidden}.bar-fill{background:var(--accent);height:100%}.bar-value{font-size:.85rem}.toast-banner{display:flex;align-items:center;justify-content:space-between;gap:12px}.toast-undo{flex:0 0 auto;background:none;border:1px solid var(--accent);color:var(--accent);padding:4px 12px;border-radius:6px;font-weight:600}.ios-hint{margin-top:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:10px 14px;font-size:.85rem;color:var(--muted)}:root[data-theme=light]{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #eef1f4;--border: #d8dde3;--text: #1a1d24;--muted: #5c6470;--accent: #1f9d62;--accent-dark: #18814f;--danger: #d64545;--positive: #1f9d62;--negative: #c0392b;--shadow: 0 6px 24px rgba(0, 0, 0, .08)}.summary-banner{border-radius:10px;padding:12px 14px;margin-bottom:12px;font-weight:600;font-size:1.02rem;border:1px solid var(--border);background:var(--surface-2)}.summary-banner.pos{color:var(--positive);border-color:color-mix(in srgb,var(--accent) 45%,transparent)}.summary-banner.neg{color:var(--negative);border-color:color-mix(in srgb,var(--danger) 45%,transparent)}.group-row{display:flex;align-items:center;gap:12px;width:100%;background:none;border:none;border-bottom:1px solid var(--border);border-radius:8px;padding:12px 8px;text-align:start;color:var(--text);cursor:pointer}.group-row:hover{background:var(--surface-2)}.group-row:last-child{border-bottom:none}.group-avatar-fallback{display:inline-flex;align-items:center;justify-content:center;background:var(--surface-2);font-size:1.3rem}.group-row-main{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}.group-row-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.group-row-sub{font-size:.85rem;color:var(--muted)}.group-row-total{color:var(--muted)}.show-settled{width:100%;margin-top:6px;font-size:.85rem}.onboarding ol{margin:0;padding-inline-start:20px;color:var(--text);line-height:1.7}.group-row-remove{flex:0 0 auto;color:var(--muted);font-size:.9rem;padding:4px 9px;border-radius:6px;cursor:pointer;-webkit-user-select:none;user-select:none}.group-row-remove:hover{background:var(--surface);color:var(--danger)}.date-header{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:14px 0 2px;font-weight:600}.exp-row{align-items:center}.exp-left{display:flex;gap:10px;min-width:0;flex:1;align-items:center}.exp-icon{flex:0 0 auto;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;font-size:1.1rem}.exp-info{min-width:0}.exp-title{overflow-wrap:anywhere}.exp-right{display:flex;align-items:center;gap:6px;flex:0 0 auto}.exp-persp{display:flex;flex-direction:column;align-items:flex-end;text-align:end}.exp-persp-label{font-size:.72rem;color:var(--muted);white-space:nowrap}.exp-actions{display:flex}button.link.neutral{color:var(--muted)}button.link.neutral:hover{background:var(--surface-2);color:var(--text)}.settle-mine{font-weight:600}.settle-copy{flex:0 0 auto;padding:6px 10px;font-size:.82rem}.settle-handle{flex-basis:100%;font-size:.82rem;color:var(--muted);overflow-wrap:anywhere;margin-top:2px}.amount-row{display:flex;gap:8px}.amount-row input{flex:1;min-width:0}.amount-currency{width:auto;flex:0 0 auto}.desc-with-icon{display:flex;align-items:center;gap:8px}.desc-with-icon input{flex:1}.desc-icon{flex:0 0 auto;width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;font-size:1.25rem}.avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-weight:700;flex:0 0 auto;line-height:1;text-transform:uppercase}.member-line{display:flex;align-items:center;gap:10px;min-width:0}.participants-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px}.participants-head-right{display:flex;align-items:center;gap:10px}.per-person{font-size:.82rem;white-space:nowrap}.danger-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}.danger-row:last-child{border-bottom:none}.danger-row .meta{color:var(--muted);font-size:.8rem;margin-top:2px}.danger-btn{flex:0 0 auto;background:none;color:var(--danger);border:1px solid var(--danger)}.danger-btn:hover{background:var(--danger);color:#fff}.expense-search{margin-bottom:12px}.member-row{cursor:pointer;border-radius:8px}.member-row:hover{background:var(--surface-2)}.receipt-chip{background:none;border:none;padding:0 4px;margin-inline-start:6px;font-size:.95rem;cursor:pointer}.receipt-chip:hover{background:none;transform:scale(1.15)}.receipt-attached{display:flex;align-items:center;gap:10px}.receipt-thumb{width:56px;height:56px;object-fit:cover;border-radius:8px;border:1px solid var(--border)}.receipt-viewer{background:var(--surface);border-radius:var(--radius);padding:14px;max-width:92vw;max-height:88vh;display:flex;flex-direction:column;gap:12px;align-items:center}.receipt-viewer img{max-width:100%;max-height:76vh;object-fit:contain;border-radius:8px}.donut-wrap{display:flex;justify-content:center;margin:6px 0 14px}.insights-top{font-size:.92rem}.cat-dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-inline-end:6px;vertical-align:middle}.group-cover{display:block;width:100%;margin-bottom:12px;cursor:pointer}.group-cover-img{width:100%;height:160px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--border);display:block}.group-cover-empty{display:flex;align-items:center;justify-content:center;width:100%;height:92px;color:var(--muted);border:1px dashed var(--border);border-radius:var(--radius);font-size:.9rem}.qr-wrap{display:flex;flex-direction:column;align-items:center;margin-top:12px}.qr-wrap img{background:#fff;padding:8px;border-radius:10px;border:1px solid var(--border)}.offline-banner{position:fixed;top:0;left:0;right:0;z-index:200;padding-top:env(safe-area-inset-top,0px);background:var(--danger);color:#fff;text-align:center;padding:8px 14px;font-size:.85rem;font-weight:600}.site-footer{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:28px;padding-top:16px;border-top:1px solid var(--border);font-size:.85rem;color:var(--muted)}.legal{max-width:720px}.legal h1{margin-bottom:4px}.legal h2{font-size:1.05rem;margin:24px 0 6px}.legal p,.legal li{color:var(--text);line-height:1.65}.legal ul{padding-inline-start:20px}@media print{body{background:#fff;color:#000}button,input,select,textarea,.modal-backdrop,.toast-banner,.scan-cta,.install-btn,.back-link,.share-box{display:none!important}.card{box-shadow:none;border:1px solid #ccc;break-inside:avoid}}