:root{
  --bg:#EAF0EE; --surface:#FFFFFF; --ink:#16302B; --muted:#5C7069; --line:#D3DEDA;
  --accent:#2E6B84; --accent-soft:#DCEAF0; --ok:#2F7A55; --warn:#B7791F; --warn-soft:#FBF0DC;
  --danger:#B2413A; --danger-soft:#F7E1DF; --spent:#16302B;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --bg:#0F1A18; --surface:#16231F; --ink:#E4EEEA; --muted:#93A8A1; --line:#2A3B36;
  --accent:#7EB6CC; --accent-soft:#1D3440; --ok:#6DC196; --warn:#E3AA52; --warn-soft:#3A2E17;
  --danger:#E8847C; --danger-soft:#3D1F1C; --spent:#E4EEEA; color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0F1A18; --surface:#16231F; --ink:#E4EEEA; --muted:#93A8A1; --line:#2A3B36;
  --accent:#7EB6CC; --accent-soft:#1D3440; --ok:#6DC196; --warn:#E3AA52; --warn-soft:#3A2E17;
  --danger:#E8847C; --danger-soft:#3D1F1C; --spent:#E4EEEA; color-scheme:dark;
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font-family:"Instrument Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:15px;line-height:1.5}
.num{font-variant-numeric:tabular-nums}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.app{display:grid;grid-template-columns:220px 1fr;min-height:100%}
nav.side{padding:28px 16px;border-right:1px solid var(--line);position:sticky;top:env(safe-area-inset-top,0px);height:100vh;display:flex;flex-direction:column;gap:2px}
.brand{font-weight:700;font-size:18px;padding:0 10px 18px;letter-spacing:-.01em}
.brand small{display:block;font-weight:400;font-size:12.5px;color:var(--muted)}
nav.side button{all:unset;cursor:pointer;padding:9px 10px;border-radius:8px;color:var(--muted);font-weight:500}
nav.side button:hover{color:var(--ink);background:var(--surface)}
nav.side button[aria-current="page"]{color:var(--ink);background:var(--surface);box-shadow:inset 3px 0 0 var(--accent)}
nav.side button:focus-visible{outline:2px solid var(--accent)}
.storage-note{margin-top:auto;font-size:12.5px;color:var(--muted);padding:0 10px}
main{padding:28px 32px 60px;max-width:1100px;width:100%}
h1{font-size:28px;line-height:1.2;margin:0 0 4px;letter-spacing:-.02em}
h2{font-size:18px;margin:0 0 12px}
.sub{color:var(--muted);margin:0 0 24px}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.head .sub{margin:0}

.btn{border:1px solid var(--line);background:var(--surface);padding:8px 14px;border-radius:8px;cursor:pointer;font-weight:500}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
:root[data-theme="dark"] .btn.primary{color:#0F1A18}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn.primary{color:#0F1A18}}
.btn.danger{color:var(--danger)}
.btn.small{padding:4px 10px;font-size:13.5px}
.btn.icon{padding:6px 10px}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.stack{display:grid;gap:20px}
.grid2{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}

/* Month switcher */
.monthnav{display:flex;align-items:center;gap:6px}
.monthnav strong{min-width:150px;text-align:center;text-transform:capitalize}

/* Ledger: the signature element */
.ledger-top{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:12px}
.remaining{font-size:44px;font-weight:700;letter-spacing:-.03em;line-height:1}
.remaining.neg{color:var(--danger)}
.remaining-label{color:var(--muted);margin-top:6px}
.bar{position:relative;height:30px;border-radius:6px;background:var(--accent-soft);margin:22px 0 10px;overflow:hidden;display:flex}
.bar .fill{position:absolute;left:0;top:0;bottom:0;background:var(--spent);border-radius:6px 0 0 6px;transition:width .5s ease}
.bar .fill.warn{background:var(--warn)} .bar .fill.over{background:var(--danger)}
@media (prefers-reduced-motion:reduce){.bar .fill{transition:none}}
.legend{display:flex;flex-wrap:wrap;gap:6px 22px;font-size:13.5px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.sw{width:10px;height:10px;border-radius:2px;display:inline-block}
.figures{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:22px;border-top:1px solid var(--line)}
.figures div{padding:14px 12px 0 0}
.figures dt{font-size:13px;color:var(--muted)} .figures dd{margin:2px 0 0;font-weight:600;font-size:17px}

.alert{padding:10px 14px;border-radius:8px;font-size:14px;margin-top:16px}
.alert.warn{background:var(--warn-soft);color:var(--warn)}
.alert.over{background:var(--danger-soft);color:var(--danger)}
.empty{text-align:center;padding:36px 16px;color:var(--muted)}
.empty p{margin:0 0 14px}

.fc-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line)}
.fc-row:last-of-type{border-bottom:0}
.fc-total{font-size:24px;font-weight:700;letter-spacing:-.02em}
.note{font-size:13px;color:var(--muted);margin:10px 0 0}

/* Chart */
.chart svg{width:100%;height:auto;display:block}
.chart text{fill:var(--muted);font-size:11px;font-family:inherit}

/* Tables */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th{text-align:left;font-weight:500;color:var(--muted);font-size:13px;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right}
td.actions{white-space:nowrap;text-align:right}
.neg{color:var(--danger)}
.chip{display:inline-block;background:var(--accent-soft);color:var(--ink);border-radius:999px;padding:1px 9px;font-size:12.5px;margin:0 4px 4px 0;white-space:nowrap}
.muted{color:var(--muted)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}

/* Forms / dialog */
dialog{border:1px solid var(--line);border-radius:14px;padding:0;background:var(--surface);color:var(--ink);width:min(560px,calc(100vw - 24px));max-height:calc(100vh - 40px)}
dialog::backdrop{background:rgba(10,20,18,.45)}
.dlg{padding:22px;display:grid;gap:14px}
.dlg h2{margin:0}
label.f{display:grid;gap:4px;font-size:13.5px;color:var(--muted)}
label.f input,label.f select,label.f textarea{padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font-size:15px;width:100%}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.err{color:var(--danger);font-size:13.5px;min-height:1em}
.dlg-actions{display:flex;justify-content:flex-end;gap:10px}
.preview{background:var(--bg);border-radius:10px;padding:12px 14px;font-size:14px}
.preview h3{font-size:13.5px;margin:0 0 8px;color:var(--muted);font-weight:500}
.preview .dates{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}
.switch{display:flex;align-items:center;gap:10px;cursor:pointer}
.switch input{width:18px;height:18px;accent-color:var(--accent)}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:8px;font-size:14px;z-index:50;max-width:calc(100vw - 32px)}
.review-note{background:var(--accent-soft);border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:20px}
.loading{display:grid;place-items:center;height:100%;color:var(--muted)}

@media (max-width:860px){
  .app{grid-template-columns:1fr}
  nav.side{position:fixed;bottom:0;left:0;right:0;top:auto;height:auto;flex-direction:row;overflow-x:auto;padding:6px 8px calc(6px + env(safe-area-inset-bottom,0px));background:var(--surface);border-right:0;border-top:1px solid var(--line);z-index:20}
  nav.side button{white-space:nowrap;font-size:14px}
  nav.side button[aria-current="page"]{box-shadow:inset 0 -3px 0 var(--accent)}
  .brand,.storage-note{display:none}
  main{padding:20px 16px 100px}
  .grid2{grid-template-columns:1fr}
  .figures{grid-template-columns:1fr 1fr}
  .remaining{font-size:36px}
  .row3{grid-template-columns:1fr 1fr}
  .toast{bottom:calc(76px + env(safe-area-inset-bottom,0px))}
}
.login{display:grid;place-items:center;min-height:100%;padding:24px}
.login-box{width:min(380px,100%);display:grid;gap:14px}
.login-box h1{margin:0}
.login-box .sub{margin:0}
nav.side .mobile-only{display:none}
@media (max-width:860px){ nav.side .mobile-only{display:inline-block} }