:root{--primary:#1e6fd9;--primary-dark:#1856ad;--primary-light:#e8f0fb;--bg:#fff;--surface:#f5f8fc;--surface-2:#eef3f9;--text:#1a2433;--text-muted:#6b7a8c;--border:#e1e8f0;--success:#1e8a4a;--danger:#c62828;--warning:#c47a00;--radius:10px;--radius-lg:16px;--shadow-sm:0 1px 2px #1428500f;--shadow-md:0 4px 12px #1428501f;--appbar-h:56px;--safe-bottom:env(safe-area-inset-bottom,0px)}*{box-sizing:border-box}html,body,#root{height:100%}body{color:var(--text);background:var(--surface);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.4}button{font-family:inherit}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}input,select,textarea{font-family:inherit;font-size:16px}.app{background:var(--surface);max-width:560px;min-height:100%;padding-bottom:var(--safe-bottom);margin:0 auto;position:relative}.appbar{z-index:10;height:var(--appbar-h);background:var(--primary);color:#fff;box-shadow:var(--shadow-sm);align-items:center;gap:8px;padding:0 12px;display:flex;position:sticky;top:0}.appbar h1{white-space:nowrap;text-overflow:ellipsis;flex:1;margin:0;font-size:18px;font-weight:600;overflow:hidden}.appbar .icon-btn{color:#fff;cursor:pointer;background:0 0;border:0;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex}.appbar .icon-btn:hover{background:#ffffff1f}.section{background:var(--bg);margin-top:12px}.section-title{color:var(--text-muted);background:var(--surface);padding:10px 16px 6px;font-size:13px}.list-row{background:var(--bg);border-bottom:1px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none;text-align:left;width:100%;font:inherit;color:inherit;border-top:0;border-left:0;border-right:0;align-items:center;gap:12px;padding:14px 16px;display:flex}.list-row:last-child{border-bottom:0}.list-row:hover{background:var(--surface-2)}.list-row .icon-circle{border:2px solid var(--primary);width:36px;height:36px;color:var(--primary);background:var(--bg);border-radius:50%;flex:none;justify-content:center;align-items:center;display:inline-flex}.list-row .label{flex:1;min-width:0}.list-row .label .title{font-weight:500}.list-row .label .sub{color:var(--text-muted);margin-top:2px;font-size:13px}.list-row .right{color:var(--text-muted);align-items:center;gap:6px;font-size:14px;display:flex}.list-row .right .value{color:var(--primary);font-weight:600}.list-row .right .value.neg{color:var(--danger)}.list-row .right .value.pos{color:var(--success)}.list-row .chev{color:var(--text-muted)}.btn{border-radius:var(--radius);cursor:pointer;border:0;justify-content:center;align-items:center;gap:8px;padding:12px 18px;font-size:16px;font-weight:600;transition:background .15s,opacity .15s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary[disabled]{opacity:.55;cursor:not-allowed}.btn-block{width:100%}.btn-ghost{color:var(--primary);background:0 0}.btn-ghost:hover{background:var(--primary-light)}.btn-danger{background:var(--danger);color:#fff}.fab{right:max(16px,50% - 264px);bottom:calc(24px + var(--safe-bottom));background:var(--primary);color:#fff;cursor:pointer;width:56px;height:56px;box-shadow:var(--shadow-md);z-index:5;border:0;border-radius:50%;font-size:28px;line-height:1;position:fixed}.fab:hover{background:var(--primary-dark)}.form{gap:14px;padding:16px;display:grid}.field{gap:6px;display:grid}.field label{color:var(--text-muted);font-size:13px}.input,.select,.textarea{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);width:100%;color:var(--text);outline:none;padding:11px 12px}.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.welcome{min-height:100vh;padding:32px 24px calc(32px + var(--safe-bottom));background:var(--bg);text-align:center;flex-direction:column;align-items:center;display:flex}.welcome .logo{color:var(--primary);letter-spacing:-2px;margin:40px 0 24px;font-family:Brush Script MT,Lucida Handwriting,cursive;font-size:96px;font-style:italic;font-weight:700}.welcome ul{color:var(--text);margin:0 0 32px;padding:0;font-size:18px;list-style:none}.welcome ul li{margin:14px 0}.welcome .spacer{flex:1}.group-hero{background:var(--primary);color:#fff;text-align:center;padding:24px 16px}.group-hero .name{margin-bottom:8px;font-size:22px;font-weight:700}.group-hero .summary{background:var(--bg);color:var(--text);border-radius:var(--radius);justify-content:center;gap:24px;margin-top:12px;padding:14px;font-size:14px;display:flex}.group-hero .summary .v{color:var(--primary);font-weight:700}.empty{text-align:center;color:var(--text-muted);padding:48px 24px}.modal-backdrop{z-index:50;background:#14285073;justify-content:center;align-items:flex-end;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.modal{background:var(--bg);width:100%;max-width:560px;padding:16px 16px calc(16px + var(--safe-bottom));border-radius:16px 16px 0 0;max-height:92vh;overflow-y:auto}.modal h2{margin:4px 0 12px;font-size:18px}.modal .actions{justify-content:flex-end;gap:8px;margin-top:12px;display:flex}.toast{left:50%;bottom:calc(20px + var(--safe-bottom));color:#fff;z-index:100;box-shadow:var(--shadow-md);background:#1a2433;border-radius:24px;padding:10px 16px;font-size:14px;position:fixed;transform:translate(-50%)}.toast.error{background:var(--danger)}.auth{background:var(--bg);flex-direction:column;min-height:100vh;padding:24px;display:flex}.auth .logo{color:var(--primary);text-align:center;margin:24px 0;font-family:Brush Script MT,Lucida Handwriting,cursive;font-size:64px;font-style:italic;font-weight:700}.auth h1{margin:8px 0 16px;font-size:22px}.auth .switch{text-align:center;color:var(--text-muted);margin-top:16px;font-size:14px}.settle-row{border-bottom:1px solid var(--border);background:var(--bg);align-items:center;gap:12px;padding:14px 16px;display:flex}.settle-row .who{flex:1}.settle-row .who .from{color:var(--text-muted);font-size:13px}.settle-row .who .arrow{color:var(--primary);margin:0 4px;font-weight:700}.settle-row .amt{color:var(--primary);font-weight:700}.tag{background:var(--primary-light);color:var(--primary);border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:13px;display:inline-flex}.tag button{color:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-size:14px}.row{align-items:center;gap:8px;display:flex}.spacer-1{flex:1}.text-muted{color:var(--text-muted)}.text-right{text-align:right}.mono{font-variant-numeric:tabular-nums}.hr{background:var(--border);height:1px;margin:8px 0}.center{text-align:center}.pad-16{padding:16px}.code-box{background:var(--surface-2);border:1px dashed var(--border);border-radius:var(--radius);letter-spacing:2px;text-align:center;padding:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:18px}.tabs{background:var(--surface-2);border-radius:var(--radius);gap:4px;padding:4px;display:flex}.tabs button{cursor:pointer;color:var(--text-muted);background:0 0;border:0;border-radius:8px;flex:1;padding:8px 12px;font-weight:500}.tabs button.active{background:var(--bg);color:var(--primary);box-shadow:var(--shadow-sm)}