:root {
  --bg: #f6f5f1; --panel: #ffffff; --ink: #1c1f1e; --ink-2: #4b524f; --ink-3: #8a918d;
  --line: #e6e4dd; --line-2: #f0eee8; --accent: #0f6b5c; --accent-ink: #ffffff; --accent-soft: #e3f1ed;
  --good: #1f7a4d; --good-soft: #e5f4ea; --warn: #9a5b00; --warn-soft: #fbf0dc; --bad: #b3261e; --bad-soft: #fbe7e5;
  --chip: #f1efe9; --shadow: 0 1px 2px rgba(20,24,22,.06), 0 6px 24px rgba(20,24,22,.06);
  --r: 12px; --r-sm: 8px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121514; --panel: #1a1e1c; --ink: #eef1ef; --ink-2: #b9c1bc; --ink-3: #7f8984;
    --line: #2a302d; --line-2: #222724; --accent: #4fc2a8; --accent-ink: #0b1311; --accent-soft: #1d3530;
    --good: #6ad19a; --good-soft: #17301f; --warn: #f0b45a; --warn-soft: #33270f; --bad: #ff8a80; --bad-soft: #3a1c1a;
    --chip: #242a27; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 28px rgba(0,0,0,.3); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121514; --panel: #1a1e1c; --ink: #eef1ef; --ink-2: #b9c1bc; --ink-3: #7f8984;
  --line: #2a302d; --line-2: #222724; --accent: #4fc2a8; --accent-ink: #0b1311; --accent-soft: #1d3530;
  --good: #6ad19a; --good-soft: #17301f; --warn: #f0b45a; --warn-soft: #33270f; --bad: #ff8a80; --bad-soft: #3a1c1a;
  --chip: #242a27; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 28px rgba(0,0,0,.3); color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font: 14px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }
.boot { padding: 40px; color: var(--ink-3); }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-3); }
.small { font-size: 12px; }
.row { display: flex; gap: 8px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.spacer { flex: 1; }
.stack { display: grid; gap: 12px; }

/* shell */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.side { border-right: 1px solid var(--line); padding: 20px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 2px; background: var(--bg); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; padding: 4px 10px 18px; letter-spacing: -.01em; }
.brand-mark { width: 26px; height: 26px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 14px; }
.nav { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--r-sm); color: var(--ink-2); cursor: pointer; border: 0; background: none; text-align: left; width: 100%; }
.nav:hover { background: var(--line-2); color: var(--ink); }
.nav.on { background: var(--panel); color: var(--ink); box-shadow: var(--shadow); font-weight: 600; }
.nav .count { margin-left: auto; background: var(--accent); color: var(--accent-ink); border-radius: 999px; font-size: 11px; padding: 0 7px; font-weight: 600; }
.side-foot { margin-top: auto; padding: 10px; font-size: 12px; color: var(--ink-3); display: grid; gap: 6px; }
.main { padding: 28px 32px 80px; max-width: 1180px; width: 100%; }
.head { display: flex; align-items: flex-end; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.head h1 { font-size: 24px; letter-spacing: -.02em; margin: 0; font-weight: 700; }
.head p { margin: 2px 0 0; color: var(--ink-3); }

/* surfaces */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.card.pad { padding: 18px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin-bottom: 18px; }
.tile { padding: 16px 18px; }
.tile .k { color: var(--ink-3); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.tile .v { font-size: 24px; font-weight: 700; letter-spacing: -.02em; margin-top: 4px; }
.tile .s { color: var(--ink-3); font-size: 12px; }
.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); font-weight: 600; margin: 22px 0 10px; }

/* controls */
.btn { border: 1px solid var(--line); background: var(--panel); padding: 8px 14px; border-radius: var(--r-sm); cursor: pointer; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.btn:hover { border-color: var(--ink-3); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--line-2); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
.input, select.input, textarea.input { border: 1px solid var(--line); background: var(--panel); border-radius: var(--r-sm); padding: 8px 10px; width: 100%; min-width: 0; }
.input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
label.f { display: grid; gap: 4px; font-size: 12px; color: var(--ink-2); font-weight: 500; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.seg { display: inline-flex; background: var(--chip); border-radius: var(--r-sm); padding: 3px; gap: 2px; }
.seg button { border: 0; background: transparent; padding: 5px 12px; border-radius: 6px; cursor: pointer; color: var(--ink-2); }
.seg button.on { background: var(--panel); color: var(--ink); box-shadow: var(--shadow); font-weight: 600; }

/* chips and badges */
.chip { display: inline-flex; align-items: center; gap: 4px; background: var(--chip); border-radius: 999px; padding: 2px 9px; font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.chip.accent { background: var(--accent-soft); color: var(--accent); }
.chip.good { background: var(--good-soft); color: var(--good); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.bad { background: var(--bad-soft); color: var(--bad); }
.chip button { border: 0; background: none; cursor: pointer; padding: 0; color: inherit; }

/* table */
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; color: var(--ink-3); font-weight: 600; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--line-2); vertical-align: middle; }
.table tr.click { cursor: pointer; }
.table tr.click:hover td { background: var(--line-2); }
.table .r { text-align: right; }
.table tfoot td { font-weight: 700; border-top: 1px solid var(--line); border-bottom: 0; }
.scroll-x { overflow-x: auto; }

/* inbox cards */
.inbox { display: grid; gap: 10px; }
.item { display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; padding: 14px 16px; align-items: center; }
.avatar { width: 44px; height: 44px; border-radius: 12px; background: var(--chip); display: grid; place-items: center; font-weight: 700; color: var(--ink-2); font-size: 15px; }
.item .title { font-weight: 600; }
.item .meta { color: var(--ink-3); font-size: 12px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 2px; }
.item .amt { text-align: right; font-weight: 700; font-size: 16px; }
.item .amt .o { display: block; font-weight: 400; font-size: 12px; color: var(--ink-3); }
.item-actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; align-items: center; }
.cat-select { border: 1px solid var(--line); background: var(--chip); border-radius: 999px; padding: 3px 10px; font-size: 12px; max-width: 240px; }

/* drop zone */
.drop { border: 2px dashed var(--line); border-radius: var(--r); padding: 36px; text-align: center; background: var(--panel); transition: .15s; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop h3 { margin: 6px 0 4px; font-size: 17px; }

/* drawer */
.scrim { position: fixed; inset: 0; background: rgba(10,14,12,.35); z-index: 20; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(560px, 100%); background: var(--panel); z-index: 21; box-shadow: -10px 0 40px rgba(0,0,0,.15); display: flex; flex-direction: column; }
.drawer-head { padding: 18px 20px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 10px; }
.drawer-head h2 { margin: 0; font-size: 18px; }
.drawer-body { padding: 18px 20px; overflow-y: auto; flex: 1; display: grid; gap: 14px; align-content: start; }
.drawer-foot { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; gap: 8px; }
.split-row { display: grid; grid-template-columns: 1.6fr 0.9fr 1.1fr 0.7fr 28px; gap: 6px; align-items: center; }
.note { background: var(--line-2); border-radius: var(--r-sm); padding: 10px 12px; font-size: 13px; color: var(--ink-2); }
.note.good { background: var(--good-soft); color: var(--good); }
.note.warn { background: var(--warn-soft); color: var(--warn); }
.note.bad { background: var(--bad-soft); color: var(--bad); }
.receipt-img { max-width: 100%; border-radius: var(--r-sm); border: 1px solid var(--line); }

/* auth */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth .card { width: min(420px, 100%); padding: 28px; }
.auth h1 { margin: 10px 0 4px; font-size: 22px; letter-spacing: -.02em; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; z-index: 40; box-shadow: var(--shadow); max-width: calc(100% - 32px); }
.empty { padding: 40px 20px; text-align: center; color: var(--ink-3); }
.empty h3 { color: var(--ink); margin: 0 0 4px; font-size: 16px; }
.mobile-nav { display: none; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side { display: none; }
  .main { padding: 18px 16px 96px; }
  .mobile-nav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: var(--panel); border-top: 1px solid var(--line); z-index: 15; justify-content: space-around; padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
  .mobile-nav button { border: 0; background: none; font-size: 11px; color: var(--ink-3); display: grid; justify-items: center; gap: 2px; padding: 4px 6px; cursor: pointer; }
  .mobile-nav button.on { color: var(--accent); font-weight: 600; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .split-row { grid-template-columns: 1fr 1fr; }
  .item { grid-template-columns: 36px 1fr; }
  .item .amt { grid-column: 2; text-align: left; }
  .avatar { width: 36px; height: 36px; }
  .hide-sm { display: none; }
}
@media print {
  .side, .mobile-nav, .no-print { display: none !important; }
  .shell { display: block; } .main { padding: 0; max-width: none; }
  .card { box-shadow: none; }
  body { background: #fff; color: #000; }
}

.paper { max-width: 860px; }
@media print { .paper { border: 0; padding: 0; max-width: none; } .head { display: none; } }

.nav-group { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); font-weight: 600; padding: 14px 10px 4px; }
.nav-group:empty { padding: 6px 0; }