:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:oklch(98.8% .004 80);--surface:oklch(100% 0 0);--surface-2:oklch(97.2% .006 80);--surface-3:oklch(94.5% .008 80);--line:oklch(91% .006 80);--line-strong:oklch(86% .008 80);--ink:oklch(22% .012 80);--ink-2:oklch(40% .012 80);--ink-3:oklch(58% .012 80);--ink-4:oklch(72% .01 80);--accent:#1f6f4a;--accent-ink:#fff;--accent-soft:color-mix(in oklch, var(--accent) 14%, var(--surface));--accent-line:color-mix(in oklch, var(--accent) 28%, var(--surface));--pos:#1f6f4a;--neg:#b8412a;--warn:#b67414;--info:#2a5fb1;--shadow-1:0 1px 0 #00000005, 0 1px 2px #140f0a0a;--shadow-2:0 1px 0 #00000005, 0 6px 18px -8px #140f0a1f;--r-1:6px;--r-2:10px;--r-3:14px;--r-pill:999px;--font-body:"Geist", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace}:root.dark,:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:oklch(15% .008 80);--surface:oklch(19% .008 80);--surface-2:oklch(22% .008 80);--surface-3:oklch(26% .01 80);--line:oklch(30% .01 80);--line-strong:oklch(38% .01 80);--ink:oklch(96% .006 80);--ink-2:oklch(82% .006 80);--ink-3:oklch(64% .008 80);--ink-4:oklch(48% .01 80);--accent-soft:color-mix(in oklch, var(--accent) 22%, var(--surface));--accent-line:color-mix(in oklch, var(--accent) 40%, var(--surface));--pos:#4cb98a;--neg:#e08066;--warn:#d8a93a;--info:#6fa6ec;--shadow-1:0 1px 0 #0006, 0 1px 2px #0000004d;--shadow-2:0 1px 0 #0006, 0 6px 18px -8px #00000080}*,:before,:after{box-sizing:border-box}html,body,#app{min-height:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;letter-spacing:0;margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}img,svg,canvas{max-width:100%}.app-shell{background:var(--bg);grid-template-columns:220px minmax(0,1fr);height:100dvh;min-height:100vh;display:grid;overflow:hidden}.app-sidebar{background:var(--surface-2);border-right:1px solid var(--line);flex-direction:column;gap:14px;min-height:0;padding:14px;display:flex;overflow:hidden auto}.brand-row{align-items:center;gap:8px;padding:4px 6px 12px;display:flex}.brand-row>span:last-child{flex-direction:column;line-height:1.1;display:flex}.brand-row strong{font-size:14px;font-weight:600}.brand-row span span{color:var(--ink-4);font-size:11px}.brand-mark,.avatar{background:var(--accent-soft);color:var(--accent);flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:inline-flex}.brand-mark{border-radius:7px;width:22px;height:22px;font-size:12px}.avatar{border-radius:10px;width:34px;height:34px;font-size:12px}.avatar.small{border-radius:8px;width:28px;height:28px;font-size:11px}.nav-stack,.nav-section{flex-direction:column;gap:4px;display:flex}.nav-primary-action{justify-content:center;margin-bottom:10px}.nav-label,.eyebrow,.field-label{color:var(--ink-3);letter-spacing:.08em;text-transform:uppercase;font-size:10px;font-weight:600}.nav-label{padding:14px 10px 4px}.nav-link{border-radius:var(--r-1);width:100%;color:var(--ink-3);border:1px solid #0000;align-items:center;gap:8px;padding:8px 10px;font-size:13px;display:flex}.nav-link:hover,.nav-link.active{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow-1);color:var(--ink)}.sidebar-footer{flex-direction:column;gap:6px;margin-top:auto;display:flex}.sidebar-profile{align-items:center;gap:8px;min-width:0;padding:6px;display:flex}.sidebar-profile>span:last-child{flex-direction:column;min-width:0;line-height:1.2;display:flex}.sidebar-profile strong,.sidebar-profile span span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.sidebar-profile strong{font-size:13px}.sidebar-profile span span{color:var(--ink-3);font-size:11px}.app-content{flex-direction:column;min-width:0;height:100%;min-height:0;display:flex}.page-header{border-bottom:1px solid var(--line);background:var(--bg);flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:12px;padding:20px 28px;display:flex}.page-header h2{margin:0;font-size:20px;font-weight:600;line-height:1.2}.page-header p{color:var(--ink-3);margin:4px 0 0;font-size:12px;line-height:1.4}.page-body{flex-direction:column;gap:16px;min-height:0;padding:28px;display:flex;overflow:auto}.toolbar,.inline-actions,.stack-sm,.stack-md,.badge-row{gap:8px;display:flex}.toolbar,.inline-actions,.badge-row{flex-wrap:wrap;align-items:center}.stack-sm,.stack-md{flex-direction:column}.stack-sm{gap:8px}.stack-md{gap:14px}.cards-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;display:grid}.two-column-grid,.settle-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,1.8fr);gap:16px;display:grid}.three-column-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-3);box-shadow:var(--shadow-1);padding:16px}.panel-hero{background:var(--surface-2)}.panel h3,.panel h4{margin:0 0 12px;font-size:15px;font-weight:600}.metric-card h3{color:var(--ink-3);font-size:12px;font-weight:500}.metric-card strong{font-family:var(--font-mono);font-variant-numeric:tabular-nums;margin-top:4px;font-size:26px;display:block}.metric-card-action{flex-direction:column;justify-content:space-between;display:flex}.field{flex-direction:column;gap:8px;display:flex}.field span{color:var(--ink-3);font-size:12px}.input,.textarea,.select{width:100%;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--r-2);outline:none;padding:9px 12px}.input:focus,.textarea:focus,.select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.textarea{resize:vertical;min-height:110px}.button{min-height:34px;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--r-2);cursor:pointer;justify-content:center;align-items:center;gap:6px;padding:8px 12px;font-size:13px;font-weight:500;line-height:1;display:inline-flex}.button:hover:not(:disabled){background:var(--surface-2)}.button:disabled{cursor:not-allowed;opacity:.55}.button-primary{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.button-primary:hover:not(:disabled){filter:brightness(.96);background:var(--accent)}.button-outline{background:var(--surface)}.button-ghost{color:var(--ink-3);background:0 0;border-color:#0000}.button-ghost:hover:not(:disabled){color:var(--ink)}.button-danger{color:var(--neg);background:color-mix(in oklch, var(--neg) 12%, var(--surface));border-color:color-mix(in oklch, var(--neg) 28%, var(--surface))}.badge{color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-pill);align-items:center;gap:4px;padding:5px 8px;font-size:11px;font-weight:500;display:inline-flex}.badge.positive{color:var(--pos);background:color-mix(in oklch, var(--pos) 14%, var(--surface));border-color:color-mix(in oklch, var(--pos) 28%, var(--surface))}.badge.warning{color:var(--warn);background:color-mix(in oklch, var(--warn) 14%, var(--surface));border-color:color-mix(in oklch, var(--warn) 28%, var(--surface))}.badge.danger{color:var(--neg);background:color-mix(in oklch, var(--neg) 14%, var(--surface));border-color:color-mix(in oklch, var(--neg) 28%, var(--surface))}.list-clean{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.friend-row,.message-row,.obligation-row,.line-row,.settle-split-row{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2);padding:12px}.friend-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.friend-row strong,.obligation-row strong{display:block}.text-muted{color:var(--ink-3)}.positive-text{color:var(--pos)}.danger-text{color:var(--neg)}.mono-text,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.line-through{text-decoration:line-through}.inline-error,.inline-notice{border-radius:var(--r-2);padding:10px 12px;font-size:13px}.inline-error{color:var(--neg);background:color-mix(in oklch, var(--neg) 12%, var(--surface));border:1px solid color-mix(in oklch, var(--neg) 28%, var(--surface))}.inline-notice{color:var(--info);background:color-mix(in oklch, var(--info) 12%, var(--surface));border:1px solid color-mix(in oklch, var(--info) 28%, var(--surface))}.empty-state{color:var(--ink-3);border:1px dashed var(--line-strong);border-radius:var(--r-2);padding:20px}.messages{flex-direction:column;gap:10px;display:flex}.message-row{max-width:86%}.message-row.from-me{background:var(--accent-soft);align-self:flex-end}.message-row.from-them{align-self:flex-start}.line-table{border-collapse:collapse;width:100%}.line-table th,.line-table td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:10px}.line-table th{color:var(--ink-3);font-size:12px;font-weight:600}.line-table input{width:120px}.settle-friend-button{width:100%;color:var(--ink);text-align:left;border-radius:var(--r-2);cursor:pointer;background:0 0;border:1px solid #0000;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px;display:grid}.settle-friend-button:hover,.settle-friend-button.active{background:var(--surface-2);border-color:var(--line)}.settle-friend-main{flex-direction:column;min-width:0;display:flex}.settle-friend-main strong,.settle-friend-main span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.section-heading-row{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px;display:flex}.section-heading-row h3,.section-heading-row p{margin:0}.section-heading-row p{margin-top:4px;font-size:12px}.balance-meter{background:linear-gradient(90deg, var(--neg), var(--surface-3) 50%, var(--pos));border-radius:var(--r-pill);height:6px;position:relative;overflow:hidden}.balance-meter:after{background:var(--ink);content:"";width:2px;height:12px;position:absolute;top:-3px;left:50%}.balance-meter span{background:color-mix(in oklch, var(--ink) 30%, transparent);height:100%;display:block}.settle-split-row{justify-content:space-between;gap:12px;display:flex}.settle-split-select{align-items:flex-start;gap:10px;min-width:0;display:flex}.settle-split-select span{flex-direction:column;gap:4px;min-width:0;display:flex}.settled-history{margin-top:18px}.history-row{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:10px 0;display:flex}.history-row>span:first-child{flex-direction:column;min-width:0;display:flex}.detail-list{flex-direction:column;gap:8px;display:flex}.detail-row,.reference-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:8px 0;display:flex}.reference-row>div{flex-direction:column;gap:4px;min-width:0;display:flex}.reference-row strong{overflow-wrap:anywhere}.confirmation-hero{text-align:center;padding:28px}.confirmation-hero strong{font-family:var(--font-mono);font-variant-numeric:tabular-nums;margin-top:8px;font-size:38px;display:block}.confirmation-mark{width:72px;height:72px;color:var(--accent-ink);background:var(--accent);border-radius:50%;justify-content:center;align-items:center;margin-bottom:14px;font-size:36px;font-weight:700;display:inline-flex}.segmented-control{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-2);gap:3px;padding:3px;display:flex}.segmented-control span,.segmented-control button{color:var(--ink-3);text-align:center;border-radius:var(--r-1);cursor:pointer;text-transform:capitalize;background:0 0;border:0;flex:1;padding:7px 10px;font-size:12px;font-weight:500}.segmented-control .active{color:var(--ink);background:var(--surface);box-shadow:var(--shadow-1)}.checkbox-row{flex-wrap:wrap;gap:10px;display:flex}.checkbox-row label{color:var(--ink-2);align-items:center;gap:6px;font-size:13px;display:inline-flex}.modal-backdrop{z-index:50;background:#0000005c;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.modal-panel{width:min(560px,100%);max-height:min(760px,100vh - 48px);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-3);box-shadow:var(--shadow-2);flex-direction:column;gap:14px;padding:18px;display:flex;overflow:auto}.login-shell{place-items:center;min-height:100vh;padding:32px;display:grid}.login-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-3);width:min(480px,100%);box-shadow:var(--shadow-2);padding:24px}.login-card h1{margin:12px 0;font-size:28px;font-weight:600;line-height:1.1}.login-card p{color:var(--ink-3);margin:0 0 22px;line-height:1.5}@media (width<=960px){.app-shell{grid-template-columns:1fr;height:auto;min-height:100vh;overflow:visible}.app-sidebar{border-right:0;border-bottom:1px solid var(--line);overflow:visible}.nav-stack{gap:10px}.nav-section{grid-auto-columns:max-content;grid-auto-flow:column;padding-bottom:4px;display:grid;overflow-x:auto}.nav-label{display:none}.sidebar-footer{flex-flow:wrap;align-items:center}.app-content{height:auto;min-height:0}.page-header,.page-body{padding:16px}.page-header,.section-heading-row,.settle-split-row{flex-direction:column}.two-column-grid,.three-column-grid,.settle-grid{grid-template-columns:1fr}}