:root{
  --ink:#261b07;
  --slate:#61594a;
  --mute:#8f897e;
  --line:#e3dfd5;
  --line-soft:#ebe8e1;
  --field-line:#d5d2cd;
  --paper:#f8f7f5;
  --paper-deep:#f1eee8;
  --surface:#ffffff;
  --gain:#3d6b4f;
  --gain-soft:#e8f0ea;
  --owe:#c45c4a;
  --owe-soft:#f8e6e2;
  --save:#5a5478;
  --save-soft:#efeaf6;
  --dough:#f9a600;
  --accent:#f9a600;
  --accent-soft:#f8da9d;
  --focus:#e89b01;
  --shadow:0 4px 8px rgba(38,27,7,.06);
  --sans:Inter,"Avenir Next","Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  font-size:15px;
  line-height:1.45;
}
h1,h2,h3{font-weight:700}
a{color:var(--ink)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* header */
.app-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.85rem 1.5rem;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.brand{font-size:1.15rem;margin:0;font-weight:700}
.brand span{color:var(--accent)}
.header-controls{display:flex;align-items:center;gap:.6rem}

/* form controls */
select,input[type=text],input[type=date],input[type=month],input[type=number],
input[type=file]{
  font-family:var(--sans);
  border:1px solid var(--field-line);
  border-radius:6px;
  padding:.4rem .55rem;
  background:var(--surface);
  color:var(--ink);
  font-size:.9rem;
}
select:focus,input:focus{outline:2px solid var(--focus);outline-offset:1px}
label{font-size:.82rem;color:var(--slate);display:flex;flex-direction:column;gap:.2rem}

.badge{
  background:var(--accent-soft);
  color:var(--ink);
  border-radius:999px;
  padding:.15rem .6rem;
  font-size:.75rem;
  font-weight:600;
  text-transform:capitalize;
}
.badge-warn{background:var(--owe-soft);color:var(--owe);border-radius:4px;padding:0 .35rem;font-size:.72rem}

/* buttons */
.btn{
  font-family:var(--sans);
  border:none;
  border-radius:6px;
  padding:.5rem 1rem;
  font-size:.85rem;
  font-weight:600;
  cursor:pointer;
  background:var(--paper-deep);
  color:var(--ink);
}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:var(--focus)}
.btn-ghost{background:transparent;border:1px solid var(--field-line)}
.btn-small{padding:.25rem .6rem;font-size:.75rem}

/* tabs */
.tab-nav{display:flex;gap:.25rem;padding:0 1.5rem;background:var(--surface);border-bottom:1px solid var(--line)}
.tab-btn{
  background:none;
  border:none;
  padding:.75rem 1rem;
  font-size:.9rem;
  font-weight:600;
  color:var(--slate);
  cursor:pointer;
  border-bottom:2px solid transparent;
}
.tab-btn.active{color:var(--ink);border-bottom-color:var(--accent)}

/* main content */
main#view{padding:1.5rem;max-width:1200px;margin:0 auto}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:var(--shadow);
  padding:1.25rem;
  margin-bottom:1.5rem;
}
.panel h2{font-size:1rem;margin-top:0}
.toolbar{display:flex;align-items:center;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}
.form-inline{display:flex;gap:.5rem;flex-wrap:wrap;align-items:end;margin-top:.75rem}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.75rem;align-items:end}
.report-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1rem}
.card{background:var(--paper-deep);border-radius:8px;padding:1rem;overflow-x:auto}
.card h3{margin:0 0 .5rem;font-size:.95rem;display:flex;justify-content:space-between;align-items:center}
.card h3 a{font-size:.78rem;font-weight:600;color:var(--accent)}

/* tables */
.data-table{width:100%;border-collapse:collapse}
.data-table th,.data-table td{
  padding:.5rem .6rem;
  border-bottom:1px solid var(--line-soft);
  text-align:left;
  font-size:.85rem;
}
.data-table th{color:var(--slate);font-weight:600}
.money{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.amt-pos{color:var(--gain)}
.amt-neg{color:var(--owe)}
.open-item{
  display:flex;
  justify-content:space-between;
  gap:.5rem;
  padding:.3rem 0;
  border-bottom:1px solid var(--line-soft);
  font-size:.85rem;
}
.muted{color:var(--mute)}

/* status chips */
.chip{display:inline-block;border-radius:999px;padding:.1rem .55rem;font-size:.72rem;font-weight:600}
.chip-uncategorized{background:var(--owe-soft);color:var(--owe)}
.chip-rule{background:var(--save-soft);color:var(--save)}
.chip-ai_suggested{background:var(--accent-soft);color:var(--ink)}
.chip-human_confirmed{background:var(--gain-soft);color:var(--gain)}

/* sign-in overlay */
.overlay{
  position:fixed;
  inset:0;
  background:rgba(38,27,7,.55);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:50;
}
.overlay-card{
  background:var(--surface);
  border-radius:10px;
  box-shadow:var(--shadow);
  padding:2rem 2.5rem;
  text-align:center;
  max-width:340px;
}
.overlay-card h1{margin-top:0}
.overlay-card span{color:var(--accent)}

.app-footer{text-align:center;color:var(--mute);font-size:.8rem;padding:1.5rem}
.brand a{color:inherit;text-decoration:none}
.tab-nav a.tab-btn{text-decoration:none;display:inline-block}
.os-wrap{max-width:1100px;margin:0 auto;padding:1.25rem 1.5rem 3rem;overflow-x:auto}
.os-wrap h1{font-size:1.6rem;margin:0 0 .75rem}
.draft-banner{background:var(--accent-soft);border-radius:8px;padding:.7rem .9rem;margin:0 0 1rem}
.os-wrap table{width:100%;border-collapse:collapse;background:var(--surface);margin:1rem 0}
.os-wrap th,.os-wrap td{border-bottom:1px solid var(--line-soft);padding:.45rem .5rem;text-align:left;vertical-align:top;font-size:.85rem}
.os-wrap th{color:var(--slate)}
.os-wrap .num{text-align:right;font-variant-numeric:tabular-nums}
.os-wrap .kicker,.os-wrap .note{color:var(--slate)}
.os-wrap textarea{width:100%;font-family:ui-monospace,SFMono-Regular,monospace;font-size:.85rem}
.os-wrap pre{background:var(--paper-deep);padding:.8rem;overflow:auto;border-radius:8px}
.os-wrap code{font-family:ui-monospace,SFMono-Regular,monospace;font-size:.84em}