:root{color-scheme:light dark;--bg: #f4f6f4;--surface: #ffffff;--surface-2: #eef2ef;--text: #17201b;--muted: #66716b;--border: #dfe5e1;--brand: #179467;--brand-strong: #127556;--brand-soft: #e3f4ec;--on-brand: #ffffff;--header-bg: #179467;--owed: #12865c;--owed-soft: #e3f4ec;--owe: #d9480f;--owe-soft: #fdeee6;--danger: #c92a2a;--warn-soft: #fff4d6;--warn: #8a5a00;--m0: #2f7fd1;--m1: #b8478f;--m2: #c46f1b;--m3: #23897d;--m4: #7b5ea7;--m5: #c64545;--m6: #55802a;--m7: #8a6d3b;--seg-active: #ffffff;--shadow: 0 1px 2px rgb(16 24 20 / .06), 0 4px 16px rgb(16 24 20 / .06);--radius: 16px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,system-ui,sans-serif;font-size:16px;line-height:1.4;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}@media(prefers-color-scheme:dark){:root{--bg: #0e1311;--surface: #171d1a;--surface-2: #202824;--text: #e8eeea;--muted: #96a29b;--border: #2b3530;--brand: #2bb380;--brand-strong: #34c48e;--brand-soft: #173328;--on-brand: #06120d;--header-bg: #0f5c43;--owed: #45cc91;--owed-soft: #15302a;--owe: #ff8a4c;--owe-soft: #3a2116;--danger: #ff6b6b;--warn-soft: #3a2f12;--warn: #f2c55c;--m0: #5a98e0;--m1: #d0629f;--m2: #e8954a;--m3: #3cbcac;--m4: #a487d4;--m5: #e57373;--m6: #86b84e;--m7: #b8956a;--seg-active: #3a4842;--shadow: none}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text)}body{min-height:100dvh;overscroll-behavior-y:none}a{color:var(--brand-strong);text-decoration:none}h1,h2,h3{margin:0;line-height:1.2}h1{font-size:1.5rem;font-weight:700}h2{font-size:1.1rem;font-weight:650}h3{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}button{font:inherit;color:inherit}.app{max-width:560px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column}@media(max-width:899.98px){.web-only{display:none!important}}@media(min-width:900px){.app-only{display:none!important}}.columns,.col-main,.col-side{display:flex;flex-direction:column;gap:16px;min-width:0}.topbar{position:sticky;top:0;z-index:20;background:var(--header-bg);color:#fff;padding:calc(var(--safe-top) + 8px) calc(var(--safe-right) + 12px) 10px calc(var(--safe-left) + 12px);display:flex;align-items:center;gap:8px;min-height:56px}.topbar .title{flex:1;min-width:0;font-size:1.1rem;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar a,.topbar button.icon{color:#fff}.topbar .back{font-size:2rem;line-height:1;min-width:36px;min-height:44px;display:grid;place-items:center;margin-left:-6px}.topbar .action{font-weight:600;min-height:44px;display:grid;place-items:center;padding:0 8px}.page{flex:1;padding:16px calc(var(--safe-right) + 16px) calc(var(--safe-bottom) + 96px) calc(var(--safe-left) + 16px);display:flex;flex-direction:column;gap:16px}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;align-items:center;gap:12px}.row.between{justify-content:space-between}.grow{flex:1;min-width:0}.muted{color:var(--muted)}.small{font-size:.875rem}.center{text-align:center}.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid 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.avatar{width:28px;height:28px;font-size:.8rem;box-shadow:0 0 0 2px #fff9}.overlay{position:fixed;inset:0;z-index:50;background:#0006;display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:560px;background:var(--bg);border-radius:20px 20px 0 0;padding:20px calc(var(--safe-right) + 16px) calc(var(--safe-bottom) + 20px) calc(var(--safe-left) + 16px);display:flex;flex-direction:column;gap:16px;max-height:92dvh;overflow:auto}.fullscreen{position:fixed;inset:0;z-index:60;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:calc(var(--safe-top) + 24px) calc(var(--safe-right) + 24px) calc(var(--safe-bottom) + 24px) calc(var(--safe-left) + 24px)}.people-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;width:100%;max-width:480px;max-height:52dvh;overflow-y:auto;padding:2px}.people-pick button{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 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.btn{flex:1}.login{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:24px;padding:calc(var(--safe-top) + 24px) 24px calc(var(--safe-bottom) + 24px)}.login form{width:100%;max-width:340px;display:flex;flex-direction:column;gap:12px}.login .logo{width:88px;height:88px;border-radius:22px;box-shadow:var(--shadow)}.trip-card{display:flex;flex-direction:column;gap:4px}.trip-card .name{font-weight:650;font-size:1.05rem}.pill{display:inline-block;font-size:.75rem;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted)}details.archived>summary{list-style:none;cursor:pointer;padding:8px 0;color:var(--muted);font-weight:600;min-height:44px;display:flex;align-items:center;gap:8px}details.archived>summary::-webkit-details-marker{display:none}details.archived>summary:before{content:"▸";transition:transform .15s}details.archived[open]>summary:before{transform:rotate(90deg)}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--brand);animation:spin .8s linear infinite;margin:32px auto}@keyframes spin{to{transform:rotate(360deg)}}.owed{color:var(--owed)}.owe{color:var(--owe)}.amount-stack{display:inline-flex;flex-direction:column;align-items:flex-end}.hero{text-align:center;padding:22px 16px 18px;display:flex;flex-direction:column;gap:4px}.hero .headline{font-size:1.05rem;font-weight:600}.hero .big{font-size:2.6rem;font-weight:750;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1}.hero.owed-bg{background:var(--owed-soft);border-color:transparent}.hero.owe-bg{background:var(--owe-soft);border-color:transparent}.hero .sub{font-size:.9rem;color:var(--muted)}.stats{display:grid;grid-template-columns:auto 1fr 1fr;gap:6px 12px;align-items:baseline;font-variant-numeric:tabular-nums}.stats .h{font-size:.75rem;font-weight:650;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;text-align:right}.stats .l{color:var(--muted);font-size:.9rem}.stats .v{text-align:right;font-weight:600}.day-head{display:flex;justify-content:space-between;align-items:baseline;padding:4px 4px 6px}.exp-row{display:flex;align-items:center;gap:12px;padding:12px 14px;min-height:64px;color:inherit}.exp-row:active{background:var(--surface-2)}.cat-icon{width:40px;height:40px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center;font-size:1.25rem;flex:none}.exp-row .right{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:2px;font-variant-numeric:tabular-nums;font-weight:600}.settle-row .cat-icon{background:var(--brand-soft)}.amount-input{display:flex;align-items:center;gap:8px}.amount-input input{font-size:2rem;font-weight:700;min-height:64px;text-align:right;font-variant-numeric:tabular-nums}.amount-input select{width:104px;flex:none;min-height:64px;font-weight:600}.cats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.cats button{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 2px;min-height:64px;border-radius:12px;border:1.5px solid var(--border);background:var(--surface);font-size:.7rem;font-weight:600;color:var(--muted);cursor:pointer}.cats button .e{font-size:1.35rem}.cats button[aria-pressed=true]{border-color:var(--brand);color:var(--text);background:var(--brand-soft)}.preview{display:flex;justify-content:space-between;gap:8px;font-size:.9rem;padding:10px 12px;border-radius:12px;background:var(--surface-2);font-variant-numeric:tabular-nums}.split-inputs{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}.suffix{position:relative}.suffix input{padding-right:34px}.suffix:after{content:attr(data-suffix);position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}details.more>summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;gap:8px;color:var(--brand-strong);font-weight:600}details.more>summary::-webkit-details-marker{display:none}details.more[open]>summary{margin-bottom:8px}.sticky-save{position:sticky;bottom:0;z-index:10;margin:0 -16px calc(-96px - var(--safe-bottom));padding:12px 16px calc(var(--safe-bottom) + 12px);background:linear-gradient(to bottom,transparent,var(--bg) 30%)}.kv{display:grid;grid-template-columns:auto 1fr;gap:10px 16px}.kv dt{color:var(--muted);font-size:.9rem}.kv dd{margin:0;text-align:right;font-weight:500;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}table.items{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:.92rem}table.items th{text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:650;padding:0 0 6px}table.items td{padding:8px 0;border-top:1px solid var(--border);vertical-align:top}table.items .num{text-align:right;white-space:nowrap;padding-left:8px}.tag{display:inline-block;font-size:.72rem;font-weight:650;padding:1px 7px;border-radius:999px;background:var(--surface-2);color:var(--muted)}.tag.m0{background:color-mix(in srgb,var(--m0) 18%,transparent);color:var(--m0)}.tag.m1{background:color-mix(in srgb,var(--m1) 18%,transparent);color:var(--m1)}.tag.m2{background:color-mix(in srgb,var(--m2) 18%,transparent);color:var(--m2)}.tag.m3{background:color-mix(in srgb,var(--m3) 18%,transparent);color:var(--m3)}.tag.m4{background:color-mix(in srgb,var(--m4) 18%,transparent);color:var(--m4)}.tag.m5{background:color-mix(in srgb,var(--m5) 18%,transparent);color:var(--m5)}.tag.m6{background:color-mix(in srgb,var(--m6) 18%,transparent);color:var(--m6)}.tag.m7{background:color-mix(in srgb,var(--m7) 18%,transparent);color:var(--m7)}.scan-btn{font-size:1.1rem;min-height:60px;cursor:pointer}label.btn[aria-disabled=true]{opacity:.5;pointer-events:none}.scan-progress{height:4px;border-radius:2px;background:var(--surface-2);overflow:hidden;margin-top:-10px}.scan-progress span{display:block;height:100%;width:40%;background:var(--brand);border-radius:2px;animation:indet 1.2s ease-in-out infinite}@keyframes indet{0%{transform:translate(-100%)}to{transform:translate(250%)}}.receipt-thumb{width:72px;height:96px;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--surface-2);padding:0;flex:none;cursor:zoom-in}.receipt-thumb.large{width:100%;height:220px}.receipt-thumb img{width:100%;height:100%;object-fit:cover;object-position:top;display:block}.receipt-thumb .pdf{display:grid;place-items:center;height:100%;font-weight:700;color:var(--muted)}.viewer{position:fixed;inset:0;z-index:80;background:#000;display:flex;flex-direction:column}.viewer-bar{display:flex;justify-content:space-between;padding:calc(var(--safe-top) + 8px) calc(var(--safe-right) + 12px) 8px calc(var(--safe-left) + 12px)}.viewer-btn{color:#fff;background:#ffffff26;border:0;border-radius:999px;padding:10px 18px;font-weight:600;font-size:1rem;min-height:44px;display:inline-flex;align-items:center}.viewer-img{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding-bottom:var(--safe-bottom);touch-action:pinch-zoom pan-x pan-y}.viewer-img img{max-width:100%;height:auto}.viewer-pdf{flex:1;border:0;width:100%;background:#fff}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:8px}.photo-thumb{aspect-ratio:1;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--surface-2);padding:0;cursor:zoom-in;display:block}.photo-thumb img{width:100%;height:100%;object-fit:cover;display:block}.photo-thumb.pending{cursor:default;animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{50%{opacity:.45}}.viewer-img.photo{position:relative;min-height:0}.viewer-img.photo img{max-width:100%;max-height:100%;object-fit:contain;margin:auto}.viewer-count{color:#fffc;align-self:center;font-variant-numeric:tabular-nums}.viewer-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:64px;border:0;border-radius:12px;background:#00000059;color:#fff;font-size:2rem;line-height:1;cursor:pointer}.viewer-nav.prev{left:calc(var(--safe-left) + 8px)}.viewer-nav.next{right:calc(var(--safe-right) + 8px)}.viewer-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:#fff;padding:10px calc(var(--safe-right) + 12px) calc(var(--safe-bottom) + 10px) calc(var(--safe-left) + 12px)}.viewer-caption{flex:1;min-width:0;font-weight:600}.viewer-btn.danger{color:#ff8a8a;margin-left:auto}.viewer-error{flex-basis:100%;color:#ff8a8a;font-size:.9rem}.zoom{position:fixed;inset:0;z-index:90;background:var(--bg);overflow:auto;display:flex;padding:var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);touch-action:pinch-zoom pan-x pan-y;overscroll-behavior:contain}.zoom img{flex:none;margin:auto;max-width:100%;max-height:100%;object-fit:contain;display:block;cursor:zoom-in}.zoom img.zoomed{max-width:none;max-height:none;height:auto;cursor:zoom-out}.zoom-close{position:fixed;top:calc(var(--safe-top) + 12px);right:calc(var(--safe-right) + 12px);min-height:44px;padding:10px 18px;border-radius:999px;font-weight:600;font-size:1rem;cursor:pointer;background:var(--surface);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow)}.uncertain{position:relative}.uncertain input,.uncertain select,.uncertain .cats button[aria-pressed=true],.uncertain.stack .item-row input{border-color:var(--warn);background-color:var(--warn-soft);box-shadow:0 0 0 1px var(--warn)}.uncertain-note{position:absolute;top:-8px;right:8px;font-size:.68rem;font-weight:700;color:var(--warn);background:var(--bg);padding:0 4px;border-radius:4px;pointer-events:none}.warn-text{color:var(--warn)}.amount-input>div:first-child{flex:1;min-width:0}.item-row{display:flex;flex-direction:column;gap:6px;padding-bottom:10px;border-bottom:1px solid var(--border)}.small-seg button{min-height:34px;font-size:.82rem}.history{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.history>li,.activity-row{display:flex;gap:10px;align-items:flex-start}.history .avatar,.activity-row .avatar{width:28px;height:28px;font-size:.8rem;margin-top:1px}.changes{margin:4px 0 0;padding-left:18px;font-size:.9rem;display:flex;flex-direction:column;gap:2px;overflow-wrap:anywhere}.activity-row{padding:12px 14px}.activity-text{color:inherit;display:block}.trip-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.trip-tabs a{min-height:44px}.stats-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;font-variant-numeric:tabular-nums}.stats-row strong{font-size:1.05rem}.chart-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;margin:0 -4px}.chart-scroll svg{display:block}.chart-scroll .grid{stroke:var(--border);stroke-width:1;shape-rendering:crispEdges}.chart-scroll .axis{fill:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.chart-scroll .col{cursor:pointer;outline:none;transition:opacity .15s}.chart-scroll .col:focus-visible rect{stroke:var(--text);stroke-width:1}.legend{display:flex;gap:16px;font-size:.85rem;color:var(--muted)}.legend span{display:inline-flex;align-items:center;gap:6px}.legend i{width:10px;height:10px;border-radius:2px;display:inline-block}.readout{min-height:52px;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;font-variant-numeric:tabular-nums}.readout>strong{font-size:1.2rem}.readout-row{display:inline-flex;align-items:center;gap:6px;font-size:.92rem}.readout-row i{width:12px;height:2px;border-radius:1px;display:inline-block}.hbars{display:flex;flex-direction:column;gap:14px;font-variant-numeric:tabular-nums}.hbar .track{display:flex;gap:2px;height:12px;margin-top:6px;min-width:6px}.hbar .track span{display:block;min-width:2px}.hbar .track span:last-child{border-radius:0 4px 4px 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