:root{--bg: #f6f3ec;--surface: #ffffff;--surface-2: #efeae0;--text: #1c2321;--muted: #6b726e;--line: #e3ddd1;--accent: #1f6b55;--accent-ink: #ffffff;--accent-soft: #dcebe4;--pos: #1f7a4d;--neg: #c0492f;--neg-soft: #f8e3dc;--gold: #e9c46a;--radius: 16px;--shadow: 0 1px 2px rgb(0 0 0 / .04), 0 4px 16px rgb(0 0 0 / .04);--tabbar-h: 64px;--chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b726e' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");--font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #14171a;--surface: #1d2125;--surface-2: #262b30;--text: #ecebe6;--muted: #9aa19c;--line: #2e3439;--accent: #5cc29b;--accent-ink: #0d1f18;--accent-soft: #1f3a30;--pos: #5cc29b;--neg: #f08a6f;--neg-soft: #3a2420;--shadow: none;--chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa19c' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}a{color:var(--accent)}h1,h2,h3,p{margin:0}button,input,select{font:inherit;color:inherit}ul{list-style:none;margin:0;padding:0}.muted{color:var(--muted)}.small{font-size:.85rem}.pos{color:var(--pos)}.neg{color:var(--neg)}.shell-main{max-width:560px;margin:0 auto;padding:env(safe-area-inset-top) 16px calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 96px);display:flex;flex-direction:column;gap:16px}.tabbar{position:fixed;inset:auto 0 0;z-index:10;display:flex;justify-content:center;gap:8px;height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line)}.tab{flex:1;max-width:140px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:.72rem;font-weight:600;color:var(--muted);text-decoration:none}.tab svg{width:22px;height:22px}.tab.active{color:var(--accent)}.page-header{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;margin:0 -16px;padding:14px 16px 10px;background:var(--bg)}.page-header h1{flex:1;font-family:var(--serif);font-size:1.6rem;font-weight:600;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.page-header-action{display:flex}.page-sub{margin-top:-12px}.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 6px 0 var(--gold);transform:translateY(-3px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 18px;border:0;border-radius:999px;font-weight:600;text-decoration:none;cursor:pointer;transition:transform .08s ease,opacity .15s ease}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:default}.btn.small{min-height:36px;padding:0 14px;font-size:.85rem}.btn-lg{min-height:54px;padding:0 28px;font-size:1.05rem}.btn-block{width:100%}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-ghost{background:var(--surface-2);color:var(--text)}.btn-danger-ghost{background:var(--neg-soft);color:var(--neg)}.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border:0;border-radius:50%;background:var(--surface-2);color:var(--text);cursor:pointer}.icon-btn.accent{background:var(--accent);color:var(--accent-ink)}.fab{position:fixed;z-index:9;left:50%;bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);transform:translate(-50%);display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px 0 18px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-weight:700;text-decoration:none;box-shadow:0 8px 24px #0000002e}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.list>li+li{border-top:1px solid var(--line)}.section-title{margin:8px 4px;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.pill{flex-shrink:0;padding:4px 10px;border-radius:999px;font-size:.8rem;font-weight:700}.pill.pos{background:var(--accent-soft)}.pill.neg{background:var(--neg-soft)}.avatar{flex-shrink:0;display:inline-grid;place-items:center;border-radius:50%;font-weight:700;background:hsl(var(--h) 45% 88%);color:hsl(var(--h) 45% 28%)}@media(prefers-color-scheme:dark){.avatar{background:hsl(var(--h) 30% 28%);color:hsl(var(--h) 50% 85%)}}.group-list{display:flex;flex-direction:column;gap:10px}.group-card{display:flex;align-items:center;gap:12px;padding:16px;color:inherit;text-decoration:none}.group-card-main{flex:1;min-width:0;display:flex;flex-direction:column}.group-name{font-weight:700;font-size:1.05rem}.summary{padding:16px}.summary-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px}.big-number{font-family:var(--serif);font-size:2rem;font-weight:600;line-height:1.1}.balances li{display:flex;align-items:center;gap:10px;padding:7px 0}.balance-name{flex:1;font-weight:600}.balance-amount{font-weight:600;font-variant-numeric:tabular-nums}.members-edit{display:flex;flex-direction:column;gap:12px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}.transfer{display:flex;align-items:center;gap:10px;padding:12px 14px}.transfer-who{flex:1;min-width:0;display:flex;align-items:center;gap:6px;flex-wrap:wrap}.transfer-amount{font-weight:700;font-variant-numeric:tabular-nums}.expense-days{display:flex;flex-direction:column;gap:14px}.day-label{margin:0 4px 6px;font-size:.8rem;font-weight:600;color:var(--muted)}.expense-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;border:0;background:none;text-align:left;cursor:pointer}.expense-icon{flex-shrink:0;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--surface-2);font-weight:700}.is-settlement .expense-icon{background:var(--accent-soft);color:var(--accent)}.expense-main{flex:1;min-width:0;display:flex;flex-direction:column}.expense-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.expense-sub{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.expense-amounts{display:flex;flex-direction:column;align-items:flex-end;font-variant-numeric:tabular-nums}.expense-amount{font-weight:700}.expense-mine{font-size:.75rem;font-weight:600}.expense-detail{display:flex;flex-direction:column;gap:10px;padding:0 14px 14px 64px}.shares li{display:flex;justify-content:space-between;font-size:.9rem;padding:2px 0;font-variant-numeric:tabular-nums}.expense-detail .btn{align-self:flex-start}.person{display:flex;align-items:center;gap:12px;padding:10px 14px}.person-name{flex:1;font-weight:600}.form{display:flex;flex-direction:column;gap:14px}.card.form{padding:16px}.field{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1}.field>span{font-size:.82rem;font-weight:600;color:var(--muted)}.field-row{display:grid;grid-template-columns:1.25fr 1fr;gap:12px}input,select{width:100%;min-height:46px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--bg);font-size:16px}select,input[type=date]{-webkit-appearance:none;appearance:none;color:var(--text);line-height:1.4}select{padding-right:40px;background-image:var(--chevron);background-repeat:no-repeat;background-position:right 14px center;background-size:14px;text-overflow:ellipsis;cursor:pointer}input[type=date]{min-width:0;text-align:left}input[type=date]::-webkit-date-and-time-value{text-align:left}input[type=date]::-webkit-calendar-picker-indicator{opacity:.55;cursor:pointer}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}input[type=checkbox]{width:22px;min-height:22px;height:22px;accent-color:var(--accent)}.amount-field input{font-family:var(--serif);font-size:2rem;font-weight:600;min-height:64px}.inline-add{display:flex;gap:8px}.inline-add .btn{flex-shrink:0}.form-actions{display:flex;justify-content:flex-end;gap:8px}.form-error{color:var(--neg);font-weight:600;font-size:.9rem}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-weight:600;font-size:.9rem;cursor:pointer}.chip.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.segmented{display:flex;padding:4px;border-radius:999px;background:var(--surface-2)}.segmented button{flex:1;min-height:38px;border:0;border-radius:999px;background:none;font-weight:600;font-size:.9rem;color:var(--muted);cursor:pointer}.segmented button.on{background:var(--surface);color:var(--text);box-shadow:0 1px 3px #0000001a}.split-list li+li{border-top:1px solid var(--line)}.check-row,.exact-row{display:flex;align-items:center;gap:12px;min-height:52px;cursor:pointer}.check-name{flex:1;font-weight:600}.check-row .muted{font-variant-numeric:tabular-nums}.exact-row input{width:120px;flex:none;text-align:right}.exact-footer{display:flex;align-items:center;justify-content:space-between;font-weight:600}.filters{display:flex;gap:8px;align-items:center}.filters select{flex:1}.history-total{margin:-4px 4px 0}.status{padding:32px 16px;text-align:center;color:var(--muted)}.status-error{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--neg)}.empty{display:flex;flex-direction:column;align-items:center;gap:10px;padding:32px 16px;text-align:center}.empty-title{font-family:var(--serif);font-size:1.25rem;font-weight:600}.landing{min-height:100dvh;display:flex;padding:calc(env(safe-area-inset-top) + 40px) 24px calc(env(safe-area-inset-bottom) + 32px);background:radial-gradient(120% 60% at 100% 0%,var(--accent-soft) 0%,transparent 60%),var(--bg)}.landing-inner{width:100%;max-width:480px;margin:0 auto;display:flex;flex-direction:column;align-items:flex-start;gap:20px}.logo{display:flex;flex-direction:column;gap:6px;padding:14px 12px;border-radius:18px;background:var(--accent)}.logo span{display:block;width:34px;height:7px;border-radius:4px;background:var(--bg)}.logo span+span{background:var(--gold)}.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.landing-title{font-family:var(--serif);font-size:clamp(2.6rem,12vw,3.6rem);line-height:1.02;font-weight:600;letter-spacing:-.02em}.landing-title em{color:var(--accent)}.landing-lead{font-size:1.1rem;color:var(--muted);max-width:34ch}.landing-points{display:flex;flex-direction:column;gap:14px;margin-top:16px;padding-top:20px;border-top:1px solid var(--line);width:100%}.landing-points li{display:flex;flex-direction:column;padding-left:16px;border-left:3px solid var(--gold)}.landing-points span{color:var(--muted);font-size:.95rem}.landing-foot{margin-top:auto}.auth-page{min-height:100dvh;display:flex;padding:calc(env(safe-area-inset-top) + 32px) 20px calc(env(safe-area-inset-bottom) + 32px);background:radial-gradient(120% 50% at 100% 0%,var(--accent-soft) 0%,transparent 60%),var(--bg)}.auth-inner{width:100%;max-width:420px;margin:0 auto;display:flex;flex-direction:column;gap:14px}.auth-title{font-family:var(--serif);font-size:2rem;font-weight:600;line-height:1.1;margin-top:8px}.auth-form{display:flex;flex-direction:column;gap:16px;margin-top:8px}.auth-switch{text-align:center}.google-btn{color-scheme:light;display:flex;justify-content:center}.divider{display:flex;align-items:center;gap:12px;font-size:.82rem;color:var(--muted)}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}.link-btn{padding:0;border:0;background:none;color:var(--accent);font-weight:700;cursor:pointer}.text{color:var(--text)}.logo-sm{align-self:flex-start;padding:11px 9px;border-radius:14px;gap:5px}.logo-sm span{width:26px;height:6px}.landing-ctas{display:flex;gap:10px;flex-wrap:wrap}.account{display:flex;align-items:center;gap:12px;padding:14px}.account-main{flex:1;min-width:0;display:flex;flex-direction:column}.account-main .small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.person-main{flex:1;min-width:0;display:flex;flex-direction:column}.person-actions{display:flex;gap:6px}.invite-box{display:flex;flex-direction:column;gap:10px;margin:0 14px 14px;padding:12px;border-radius:12px;background:var(--accent-soft)}.invite-box input{font-size:.85rem;min-height:40px}.chip.locked{display:inline-flex;align-items:center;cursor:default}.google-btn iframe{color-scheme:light;background:transparent!important}.add-people-head{display:flex;align-items:center;justify-content:space-between}.add-people-head h2{font-family:var(--serif);font-size:1.25rem;font-weight:600}.add-people .invite-box{margin:0}.danger-zone{display:flex;justify-content:center;padding-top:8px}