:root{color-scheme:light;--bg: #f7f8fb;--surface: #ffffff;--surface-2: #eef2f7;--text: #172033;--muted: #667085;--border: #d8dee9;--primary: #0f766e;--primary-strong: #115e59;--accent: #d97706;--danger: #c2410c;--positive: #047857;--negative: #b42318;--shadow: 0 12px 32px rgba(16, 24, 40, .08)}[data-theme=dark]{color-scheme:dark;--bg: #111827;--surface: #1f2937;--surface-2: #263244;--text: #f8fafc;--muted: #b8c2d2;--border: #374151;--primary: #2dd4bf;--primary-strong: #14b8a6;--accent: #f59e0b;--danger: #fb923c;--positive: #34d399;--negative: #f87171;--shadow: 0 18px 42px rgba(0, 0, 0, .28)}*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.45}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a.secondary,.file-button{min-height:44px}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);padding:12px 13px;outline:none}textarea{min-height:88px;resize:vertical}label{display:grid;gap:7px;color:var(--muted);font-size:.9rem;font-weight:700}label input,label select,label textarea{color:var(--text);font-weight:500}h1,h2,p{margin:0}h1{font-size:clamp(2rem,4vw,3.7rem);line-height:1.02}h2{font-size:1.1rem}.loading{display:grid;min-height:100vh;place-items:center;color:var(--muted);font-weight:800}.auth{display:grid;min-height:100vh;grid-template-columns:1fr;gap:20px;padding:18px}.auth.embedded{min-height:auto;padding:0}.brand-panel,.auth-panel,.panel{border:1px solid var(--border);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.brand-panel{display:grid;align-content:end;gap:16px;min-height:32vh;padding:28px;background:linear-gradient(135deg,#0f766e,#111827 58%,#b45309);color:#fff}.brand-panel p{max-width:36rem;color:#dbeafe;font-size:1.1rem}.brand-icon{width:68px;height:68px;border-radius:16px}.auth-panel{align-self:start;padding:18px}.stack{display:grid;gap:14px}.primary,.secondary,.text-button,.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;font-weight:800;white-space:nowrap}.primary{background:var(--primary);color:#fff;padding:12px 16px}[data-theme=dark] .primary{color:#052e2b}.secondary,a.secondary{border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:11px 14px}.text-button{background:transparent;color:var(--primary)}.icon-button{width:44px;height:44px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.segmented{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:4px}.segmented button{min-height:38px;border-radius:6px;background:transparent;color:var(--muted);font-weight:800}.segmented .active{background:var(--surface);color:var(--text);box-shadow:0 2px 8px #10182814}.category-suggestions{display:flex;flex-wrap:wrap;gap:8px}.category-suggestions button{min-height:38px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);color:var(--text);padding:8px 12px;font-size:.9rem;font-weight:800}.category-suggestions .active{border-color:transparent;background:var(--primary);color:#fff}[data-theme=dark] .category-suggestions .active{color:#052e2b}.notice,.toast{border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--text);padding:12px 14px;font-weight:700}.notice.danger,.toast.error{border-color:#c2410c59;color:var(--danger)}.toast{position:fixed;right:16px;top:72px;z-index:20;display:flex;max-width:min(440px,calc(100vw - 32px));align-items:center;gap:12px;box-shadow:var(--shadow)}.shell{min-height:100vh;padding-bottom:72px}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg) 88%,transparent);padding:10px 14px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:900}.logo img{width:36px;height:36px;border-radius:10px}.top-actions{display:flex;gap:8px}.content{width:min(1180px,calc(100vw - 28px));margin:0 auto;padding:18px 0 26px}.page-grid{display:grid;gap:16px}.headline{display:flex;align-items:end;justify-content:space-between;gap:18px;padding:12px 0 4px}.headline p,.headline span{color:var(--muted);font-weight:800}.group-head img{width:74px;height:74px;flex:0 0 auto;border-radius:8px;object-fit:cover}.metric-grid{display:grid;grid-template-columns:1fr;gap:10px}.metric{display:grid;gap:7px;min-height:104px;align-content:center;border:1px solid var(--border);border-radius:8px;background:var(--surface);padding:18px}.metric span{color:var(--muted);font-size:.9rem;font-weight:800}.metric strong{font-size:1.8rem;line-height:1}.positive{color:var(--positive)}.negative{color:var(--negative)}.toolbar-section{display:grid;gap:10px}.quick-expense{gap:14px}.quick-expense-controls{display:grid;grid-template-columns:1fr;gap:10px;align-items:end}.quick-mode button{white-space:normal;line-height:1.15;padding-inline:8px}.quick-expense-form{display:grid;gap:14px}.quick-expense-form .section-title{margin-bottom:0}.searchbar{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;border:1px solid var(--border);border-radius:8px;background:var(--surface);padding:8px}.searchbar input{border:0;background:transparent;padding:9px 4px}.searchbar button{border-radius:7px;background:var(--text);color:var(--surface);padding:10px 13px;font-weight:800}.results{display:grid;gap:8px}.results a{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--border);border-radius:8px;background:var(--surface);padding:12px}.results small,.activity small,.expense-row small,.member-pill small{color:var(--muted);font-weight:800}.split-layout{display:grid;grid-template-columns:1fr;gap:16px}.panel{padding:16px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.list{display:grid;gap:8px}.list.compact{gap:6px}.row-link,.expense-row,.settlement,.activity{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:62px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:12px}.activity{display:grid;grid-template-columns:minmax(0,1fr) 108px;align-items:center}.activity-date{display:grid;justify-items:center;gap:2px;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums;line-height:1.15}.activity-date strong{color:var(--muted);font-size:.88rem;font-weight:900;white-space:nowrap}.activity-date small{font-size:.84rem}.activity-groups{display:grid;gap:16px}.activity-group{display:grid;gap:8px}.activity-group-title{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:40px;border:1px solid var(--border);border-radius:8px;background:color-mix(in srgb,var(--primary) 8%,var(--surface));padding:9px 11px;color:var(--text);font-weight:900}.row-link div,.expense-row div,.activity{min-width:0}.row-link strong,.expense-row strong,.activity span,.settlement span{overflow-wrap:anywhere}.row-link span,.expense-row span{display:block;color:var(--muted);font-size:.88rem;font-weight:700}.empty{display:grid;min-height:120px;place-items:center;gap:8px;color:var(--muted);font-weight:800;text-align:center}.mobile-nav{position:fixed;right:0;bottom:0;left:0;z-index:10;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);background:var(--surface);padding:8px 16px calc(8px + env(safe-area-inset-bottom))}.mobile-nav a{display:inline-grid;justify-items:center;gap:3px;color:var(--primary);font-size:.78rem;font-weight:900}.mobile-nav>span{color:var(--muted);font-size:.85rem;font-weight:800;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tabs{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(116px,1fr);gap:8px;overflow-x:auto;padding-bottom:2px}.tabs button{min-height:42px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--muted);font-weight:900}.tabs .active{background:var(--primary);color:#fff;border-color:transparent}[data-theme=dark] .tabs .active{color:#052e2b}.inline-grid{display:grid;grid-template-columns:1fr;gap:12px}.participant-list{display:grid;gap:8px}.participant{display:grid;grid-template-columns:1fr minmax(92px,120px);align-items:center;gap:10px;min-height:50px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:8px}.checkline{display:flex;align-items:center;gap:9px;min-width:0;color:var(--text);font-weight:800}.checkline input{width:20px;height:20px;flex:0 0 auto}.invite-policy{align-items:flex-start;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:11px}.receipt-tools{display:grid;grid-template-columns:1fr auto;gap:10px}.receipt-tools-primary{border:1px solid rgba(15,118,110,.35);border-radius:8px;background:color-mix(in srgb,var(--primary) 8%,var(--surface));padding:8px}.receipt-tools-primary .file-button{border-color:#0f766e73;background:var(--surface)}.file-button{position:relative;display:flex;align-items:center;gap:9px;overflow:hidden;border:1px dashed var(--border);border-radius:8px;background:var(--surface-2);padding:12px;color:var(--text);font-weight:800}.file-button input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0}.file-button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ocr-box{border:1px solid rgba(15,118,110,.35);border-radius:8px;background:color-mix(in srgb,var(--primary) 10%,var(--surface));padding:12px;color:var(--text);font-weight:800}.member-grid{display:flex;flex-wrap:wrap;gap:8px}.member-list{display:grid;gap:8px}.member-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;min-height:58px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:8px}.member-meta{display:grid;min-width:0;gap:2px}.member-meta strong{overflow-wrap:anywhere}.member-actions{display:flex;gap:6px}.danger-button{color:var(--danger)}.member-pill{display:inline-flex;align-items:center;gap:8px;min-height:38px;max-width:100%;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);padding:8px 10px;font-weight:800}.member-pill span{overflow-wrap:anywhere}.inline-form{display:grid;grid-template-columns:1fr;gap:10px;margin-top:14px}.invite-box{display:grid;gap:12px}.invite-box img{width:180px;height:180px;border:1px solid var(--border);border-radius:8px;background:#fff;padding:8px}.button-row{display:flex;flex-wrap:wrap;gap:10px}.button-row .secondary{min-width:92px}.join-page{display:grid;width:min(760px,calc(100vw - 28px));min-height:100vh;align-items:center;margin:0 auto;padding:18px 0}@media (min-width: 720px){.auth{grid-template-columns:minmax(0,1.25fr) minmax(360px,.75fr);align-items:center;padding:28px}.brand-panel{min-height:calc(100vh - 56px)}.auth-panel{padding:22px}.metric-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.quick-expense-controls{grid-template-columns:minmax(220px,1fr) minmax(280px,.85fr)}.split-layout{grid-template-columns:minmax(0,1fr) minmax(320px,.8fr)}.split-layout.wide-left{grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr)}.inline-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.export-panel .inline-grid{grid-template-columns:minmax(180px,1.4fr) 1fr 1fr}.inline-form{grid-template-columns:1fr auto}.content{padding-top:26px}}@media (min-width: 980px){.shell{padding-bottom:0}.mobile-nav{display:none}.topbar{padding-inline:calc((100vw - min(1180px,calc(100vw - 28px)))/2)}}@media (max-width: 430px){.top-actions{gap:5px}.icon-button{width:40px;height:40px}.participant,.receipt-tools{grid-template-columns:1fr}.activity{grid-template-columns:minmax(0,1fr) 92px;gap:8px;padding:10px}.activity-date strong,.activity-date small{font-size:.78rem}.metric strong{font-size:1.55rem}}