:root{--ink: #2b2620;--paper: #f5f2ea;--paper-alt: #ece7db;--line: #a89f8c;--line-strong: #2b2620;--header-bg: #2b2620;--header-fg: #f5f2ea;--green: #4a6741;--green-bg: #e4ead9;--yellow: #8a6d1f;--yellow-bg: #f2e9cc;--red: #8b3a3a;--red-bg: #f2ddd6;--muted: #8a8272}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);font-family:IBM Plex Mono,ui-monospace,monospace}button,input,select{font-family:inherit}.app-shell{max-width:480px;margin:0 auto;min-height:100vh;background:var(--paper);border-left:1px solid var(--line);border-right:1px solid var(--line)}.app-header{background:var(--header-bg);color:var(--header-fg);border-bottom:1px solid var(--line-strong)}.header-top{display:flex;justify-content:space-between;align-items:center;padding:12px 16px}.brand{font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:14px}.logout-btn{background:transparent;border:1px solid var(--paper);color:var(--header-fg);padding:4px 10px;font-size:12px;cursor:pointer;border-radius:0}.tab-nav{display:flex}.tab-btn{flex:1;background:transparent;border:none;border-top:1px solid var(--line-strong);border-right:1px solid var(--line-strong);color:var(--header-fg);padding:10px 4px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;cursor:pointer;border-radius:0}.tab-btn:last-child{border-right:none}.tab-btn.active{background:var(--paper);color:var(--ink);font-weight:600}.app-main{padding:16px}.balance-view{display:flex;flex-direction:column;gap:16px}.balance-card{border:1px solid var(--line-strong);padding:24px 16px;text-align:center;display:flex;flex-direction:column;gap:6px;border-radius:0}.balance-label{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.balance-amount{font-size:48px;font-weight:700;line-height:1}.balance-cuts{font-size:13px;color:var(--muted)}.balance-card.tier-green{background:var(--green-bg);color:var(--green);border-color:var(--green)}.balance-card.tier-yellow{background:var(--yellow-bg);color:var(--yellow);border-color:var(--yellow)}.balance-card.tier-red{background:var(--red-bg);color:var(--red);border-color:var(--red)}.low-balance-alert{border:1px solid var(--red);background:var(--red-bg);color:var(--red);padding:10px 12px;font-size:13px;border-radius:0}.balance-stats{display:flex;gap:1px;background:var(--line);border:1px solid var(--line)}.stat{flex:1;background:var(--paper);padding:10px;display:flex;flex-direction:column;gap:4px;text-align:center}.stat-label{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.stat-value{font-size:22px;font-weight:700}.stat-hint{font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.stat-clickable{cursor:pointer;font-family:inherit}.stat-clickable:hover{background:var(--paper-alt)}.ledger-filter-tabs{display:flex;border:1px solid var(--line-strong);margin-bottom:12px}.ledger-filter-btn{flex:1;background:var(--paper);border:none;border-right:1px solid var(--line-strong);color:var(--ink);padding:8px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;cursor:pointer;border-radius:0;font-family:inherit}.ledger-filter-btn:last-child{border-right:none}.ledger-filter-btn.active{background:var(--ink);color:var(--paper);font-weight:600}.ledger-month-group{margin-bottom:16px}.ledger-month-header{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--header-fg);background:var(--header-bg);padding:6px 10px;border:1px solid var(--line-strong);border-bottom:none}.ledger-list{list-style:none;margin:0;padding:0;border:1px solid var(--line-strong)}.ledger-row{border-bottom:1px solid var(--line);padding:10px 12px}.ledger-row:last-child{border-bottom:none}.ledger-row.reconciled{background:var(--green-bg);color:var(--muted)}.ledger-row.unreconciled{background:var(--red-bg);box-shadow:inset 3px 0 0 var(--red)}.ledger-row.reconciled 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0}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--header-bg);padding:16px}.login-card,.add-entry-form{background:var(--paper);border:1px solid var(--line-strong);padding:24px;display:flex;flex-direction:column;gap:14px;width:100%;max-width:320px;border-radius:0}.login-title{margin:0;font-size:24px;text-align:center;letter-spacing:.05em}.login-subtitle{margin:-10px 0 0;text-align:center;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}.user-toggle,.kind-toggle{display:flex;border:1px solid var(--line-strong)}.user-toggle-btn,.kind-btn{flex:1;background:var(--paper);border:none;border-right:1px solid var(--line-strong);padding:8px;cursor:pointer;border-radius:0;font-size:13px}.user-toggle-btn:last-child,.kind-btn:last-child{border-right:none}.user-toggle-btn.active,.kind-btn.active{background:var(--ink);color:var(--paper)}.pin-input{border:1px solid var(--line-strong);padding:10px;font-size:20px;letter-spacing:.3em;text-align:center;border-radius:0;background:var(--paper);color:var(--ink)}.field{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.field input,.field select{border:1px solid var(--line-strong);padding:8px;font-size:14px;border-radius:0;background:var(--paper);color:var(--ink);text-transform:none;letter-spacing:normal}.btn{border:1px solid var(--line-strong);padding:10px;cursor:pointer;border-radius:0;font-size:13px;text-transform:uppercase;letter-spacing:.05em;background:var(--paper);color:var(--ink)}.btn-primary{background:var(--ink);color:var(--paper)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-small{padding:3px 8px;font-size:10px}.login-error{color:var(--red);font-size:12px;margin:0}@media(max-width:400px){.balance-amount{font-size:40px}}