:root{--bg:#e2e8f0;--text:#566173;--muted:#8a97a8;--primary:#5b7cfa;--primary-dark:#4261dd;--green:#22a06b;--green-soft:#cdeedd;--red:#e05252;--red-soft:#f6d4d4;--shadow-dark:#a3b1c6a6;--shadow-light:#ffffffe6;--radius:16px;--font:system-ui, "Segoe UI", Roboto, -apple-system, sans-serif;--neumo:6px 6px 14px var(--shadow-dark), -6px -6px 14px var(--shadow-light);--neumo-sm:3px 3px 7px var(--shadow-dark), -3px -3px 7px var(--shadow-light);--inset:inset 3px 3px 7px var(--shadow-dark), inset -3px -3px 7px var(--shadow-light);--inset-sm:inset 2px 2px 5px var(--shadow-dark), inset -2px -2px 5px var(--shadow-light)}*{box-sizing:border-box}body{font-family:var(--font);color:var(--text);background:var(--bg);min-height:100vh;margin:0;line-height:1.45}.app{max-width:760px;margin:0 auto;padding:28px 18px 72px}h1{color:var(--text);margin:0 0 4px;font-size:26px}h2{color:var(--text);margin:0 0 8px;font-size:18px}h3{color:var(--muted);margin:0 0 8px;font-size:14px}p{margin:0}.muted{color:var(--muted);font-size:13px}.error{color:var(--red);font-size:13px;font-weight:600}.success{color:var(--green);font-size:13px;font-weight:600}.page-header{border-radius:var(--radius);box-shadow:var(--neumo);background:linear-gradient(145deg,#edf1ff,#cddcfb);margin-bottom:32px;padding:26px 26px 20px}.page-header h1{letter-spacing:-.8px;text-transform:uppercase;background:linear-gradient(120deg,#5b7cfa 20%,#22a06b 80%);color:#0000;-webkit-background-clip:text;background-clip:text;font-size:38px;font-weight:800;line-height:1.1;display:inline-block}.page-header h1:after{content:"";vertical-align:super;background:linear-gradient(135deg,#5b7cfa,#22a06b);border-radius:50%;width:10px;height:10px;margin-left:6px;display:inline-block}.page-header p{color:var(--muted);margin-top:8px}.btn{font:inherit;background:var(--bg);color:var(--text);box-shadow:var(--neumo-sm);cursor:pointer;border:none;border-radius:12px;padding:9px 16px;font-size:14px;transition:box-shadow .15s,transform .1s,background .15s,color .15s}.btn:hover{box-shadow:4px 4px 10px var(--shadow-dark), -4px -4px 10px var(--shadow-light)}.btn:active{box-shadow:var(--inset-sm)}.btn.primary{color:#fff;background:linear-gradient(145deg,#6b8bff,#4a68e8);font-weight:600;box-shadow:5px 5px 12px #5b7cfa73,-3px -3px 10px #ffffffb3}.btn.primary:hover{background:linear-gradient(145deg,#5c7efb,#3f5dd9);box-shadow:6px 6px 14px #5b7cfa80,-3px -3px 10px #ffffffb3}.btn.primary:active{box-shadow:inset 3px 3px 8px #1e2d6466,inset -2px -2px 6px #ffffff40}.btn.danger{background:var(--bg);color:var(--red);font-weight:600}.btn.danger:hover{background:var(--red);color:#fff;box-shadow:4px 4px 10px #e0525273,-3px -3px 8px #fffc}.btn.link-danger{box-shadow:none;color:var(--red);background:0 0;padding:6px 4px;font-size:13px;font-weight:600}.btn.link-danger:hover{background:0 0;text-decoration:underline}.btn.link-danger:active{box-shadow:none}.actions-bar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}.inline-form{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.card-stack{flex-direction:column;gap:18px;display:flex}.card{background:var(--bg);border-radius:var(--radius);box-shadow:var(--neumo);border:none;padding:18px}form label{color:var(--text);flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.form-stack{flex-direction:column;gap:14px;max-width:420px;display:flex}.form-actions{justify-content:flex-end;gap:10px;display:flex}input[type=text],input[type=number],select,input[type=file]{font:inherit;background:var(--bg);box-shadow:var(--inset-sm);color:var(--text);caret-color:var(--primary);border:none;border-radius:12px;padding:10px 12px;font-size:14px}select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 18px),calc(100% - 13px);background-repeat:no-repeat;background-size:5px 5px}input:focus,select:focus{background:#eef2f7;outline:none}input::placeholder{color:var(--muted);opacity:.7}.group-list{flex-direction:column;gap:14px;margin:0;padding:0;list-style:none;display:flex}.group-row{align-items:stretch;gap:10px;display:flex}.group-card{text-align:left;width:100%;font:inherit;background:var(--bg);border-radius:var(--radius);box-shadow:var(--neumo);cursor:pointer;border:none;flex:1;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;transition:box-shadow .15s,background .15s;display:flex}.group-card:hover{box-shadow:8px 8px 18px var(--shadow-dark), -8px -8px 18px var(--shadow-light)}.group-card:active{box-shadow:var(--inset)}.group-delete{align-self:center}.group-card-main h2{margin-bottom:3px}.group-card-main p{color:var(--muted);font-size:13px}.group-card-total{text-align:right}.group-card-total strong{color:var(--primary);font-size:18px;display:block}.empty-state{text-align:center;color:var(--muted);border-radius:var(--radius);box-shadow:var(--inset);padding:48px 16px}.tabs{background:var(--bg);border-radius:var(--radius);box-shadow:var(--inset-sm);gap:6px;margin-bottom:20px;padding:6px;display:flex}.tabs button{font:inherit;cursor:pointer;color:var(--muted);background:0 0;border:none;border-radius:11px;flex:1;padding:10px 12px;font-size:14px;transition:color .15s,box-shadow .15s,background .15s}.tabs button.active{color:var(--primary);background:var(--bg);box-shadow:var(--neumo-sm);font-weight:600}.group-header{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;display:flex}.group-header h1{flex:1;min-width:150px}.expense-list{flex-direction:column;gap:14px;margin:0;padding:0;list-style:none;display:flex}.expense-item{justify-content:space-between;gap:12px;padding:16px 18px;display:flex}.expense-item h2{margin-bottom:3px}.expense-item-side{text-align:right;flex-direction:column;flex-shrink:0;align-items:flex-end;gap:8px;display:flex}.expense-item-side strong{color:var(--text);font-size:17px}.expense-item-actions{gap:12px;display:flex}.share-list{box-shadow:var(--inset-sm);color:var(--muted);border-radius:10px;flex-direction:column;gap:2px;margin:10px 0 0;padding:10px 12px;font-size:13px;list-style:none;display:flex}.share-list li{justify-content:space-between;gap:16px;display:flex}.segmented{background:var(--bg);box-shadow:var(--inset-sm);border-radius:12px;width:fit-content;padding:4px;display:flex}.segmented button{font:inherit;cursor:pointer;color:var(--muted);background:0 0;border:none;border-radius:9px;padding:9px 14px;font-size:13px;transition:box-shadow .15s,color .15s}.segmented button.active{background:var(--bg);color:var(--primary);box-shadow:var(--neumo-sm);font-weight:600}.custom-shares{flex-direction:column;gap:10px;display:flex}.custom-shares label{flex-direction:row;justify-content:space-between;align-items:center;gap:12px}.custom-shares input{width:160px}.match-hint{color:var(--muted);font-size:12px}.match-hint.match{color:var(--green);font-weight:700}.member-list{padding:8px 18px}.member-list li{border-bottom:1px solid #a3b1c659;justify-content:space-between;align-items:center;gap:12px;padding:13px 0;display:flex}.member-list li:last-child{border-bottom:none}.member-name{font-size:15px;font-weight:600}.balance-list,.txn-list{margin:0;padding:0;list-style:none}.balance-list li,.txn-list li{border-bottom:1px solid #a3b1c659;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 0;display:flex}.balance-list li:last-child,.txn-list li:last-child{border-bottom:none}.balance-list .credit strong{color:var(--green)}.balance-list .debit strong{color:var(--red)}.credit{color:var(--green)}.debit{color:var(--red)}.two-col{grid-template-columns:1fr 1fr;gap:12px;display:grid}.danger-zone{border:2px solid var(--red-soft);box-shadow:var(--neumo)}code{background:#a3b1c640;border-radius:6px;padding:1px 6px;font-size:12px}.reset-btn{letter-spacing:.2px;background:var(--red);color:#fff;border:none;border-radius:14px;min-height:50px;margin-top:4px;padding:12px 30px;font-size:15px;font-weight:700;display:block;box-shadow:6px 6px 14px #e0525280,-4px -4px 10px #ffffffb3}.reset-btn:hover{background:#c84242;box-shadow:8px 8px 18px #e052528c,-4px -4px 10px #ffffffb3}.reset-btn:active{box-shadow:inset 3px 3px 8px #3c0f0f66,inset -2px -2px 6px #fff3}.dashboard-footer{right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:10;margin:0;position:fixed}.mobile-banner{display:none}@media (width<=640px){.mobile-banner{color:#fff;background:linear-gradient(135deg,#6b8bff,#4a68e8);justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;font-size:13px;line-height:1.35;display:flex;box-shadow:0 2px 8px #5b7cfa66}.mobile-banner p{margin:0}.mobile-banner button{color:#fff;cursor:pointer;background:#ffffff40;border:none;border-radius:50%;flex-shrink:0;width:26px;height:26px;font-size:13px;line-height:1}.mobile-banner button:active{background:#fff6}.app{padding:16px 14px 56px}h1{font-size:22px}.page-header{margin-bottom:24px;padding:20px 18px 16px}.btn{min-height:44px;padding:11px 16px}.btn.link-danger{min-height:38px;padding:8px 4px}input[type=text],input[type=number],select{padding:11px 12px;font-size:16px}.inline-form input{flex:1;min-width:140px}.form-actions .btn{flex:1}.form-stack{max-width:none}.group-header{gap:8px}.group-header h1{min-width:0}.group-card{flex-direction:column;align-items:stretch;gap:4px;padding:14px 16px}.group-card-total{text-align:left;justify-content:space-between;align-items:baseline;display:flex}.group-card-total strong{font-size:16px}.group-delete{min-height:42px;padding:9px 12px}.tabs{-webkit-overflow-scrolling:touch;overflow-x:auto}.tabs button{white-space:nowrap;flex:1;padding:12px 8px}.expense-item{flex-direction:column;gap:8px}.expense-item-side{text-align:left;flex-direction:row;justify-content:space-between;align-items:center;width:100%}.expense-item-side strong{font-size:17px}.share-list{font-size:13.5px}.segmented{width:100%}.segmented button{flex:1;padding:10px 8px}.custom-shares label{gap:8px}.custom-shares input{width:100%;max-width:160px}.two-col{grid-template-columns:1fr}.balance-list li,.txn-list li{padding:12px 0}}