/* NXT design system. Tokens first; dark is the signature theme. */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --bg: #f5f6f8;
  --bg-2: #eceef2;
  --panel: #ffffff;
  --panel-2: #f8f9fb;
  --ink: #0b0d12;
  --text: #171a21;
  --muted: #5d6576;
  --faint: #8a93a6;
  --line: #e3e6ec;
  --line-2: #d3d8e1;
  --accent: #3d63f5;
  --accent-ink: #ffffff;
  --accent-soft: rgba(61, 99, 245, .10);
  --good: #0f9d74;
  --good-soft: rgba(15, 157, 116, .12);
  --warn: #b7791f;
  --warn-soft: rgba(183, 121, 31, .13);
  --bad: #d63b47;
  --bad-soft: rgba(214, 59, 71, .11);
  --shadow: 0 1px 2px rgba(11, 13, 18, .05), 0 8px 24px rgba(11, 13, 18, .06);
  --radius: 14px;
  --radius-sm: 9px;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --ui: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0c11;
    --bg-2: #0f121a;
    --panel: #12151d;
    --panel-2: #171b25;
    --ink: #f3f5f9;
    --text: #e8ebf2;
    --muted: #98a1b3;
    --faint: #6b7487;
    --line: #222736;
    --line-2: #2d3345;
    --accent: #5b7cff;
    --accent-ink: #ffffff;
    --accent-soft: rgba(91, 124, 255, .16);
    --good: #2fd4a0;
    --good-soft: rgba(47, 212, 160, .13);
    --warn: #f2b84b;
    --warn-soft: rgba(242, 184, 75, .14);
    --bad: #ff6b76;
    --bad-soft: rgba(255, 107, 118, .14);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0a0c11; --bg-2: #0f121a; --panel: #12151d; --panel-2: #171b25; --ink: #f3f5f9; --text: #e8ebf2;
  --muted: #98a1b3; --faint: #6b7487; --line: #222736; --line-2: #2d3345; --accent: #5b7cff; --accent-ink: #fff;
  --accent-soft: rgba(91,124,255,.16); --good: #2fd4a0; --good-soft: rgba(47,212,160,.13); --warn: #f2b84b;
  --warn-soft: rgba(242,184,75,.14); --bad: #ff6b76; --bad-soft: rgba(255,107,118,.14);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 var(--ui); -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); letter-spacing: -.02em; margin: 0; }
h1 { font-size: 28px; line-height: 1.15; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: .92em; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Brand mark */
.nxt-mark { display: inline-flex; align-items: center; gap: 8px; font: 700 18px/1 var(--display); letter-spacing: .02em; color: var(--ink); }
.nxt-mark svg { width: 26px; height: 26px; }

/* Surfaces */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card + .card { margin-top: 14px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.grid { display: grid; gap: 12px; }
.grid.kpis { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.kpi .k { font-size: 12px; color: var(--muted); font-weight: 500; }
.kpi .v { font: 600 24px/1.2 var(--display); color: var(--ink); margin-top: 4px; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.kpi .s { font-size: 12px; color: var(--faint); margin-top: 2px; }

/* Controls */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 36px; padding: 0 14px; border-radius: var(--radius-sm); border: 1px solid var(--line-2); background: var(--panel); color: var(--text); font: 500 14px var(--ui); cursor: pointer; white-space: nowrap; text-decoration: none !important; }
.btn:hover { border-color: var(--faint); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { background: var(--panel-2); color: var(--text); }
.btn.danger { color: var(--bad); }
.btn.sm { height: 30px; padding: 0 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
input, select, textarea { font: 14px var(--ui); color: var(--text); background: var(--panel); border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 8px 10px; min-width: 0; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea { resize: vertical; }
label.f { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--muted); font-weight: 500; }
.form { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-size: 12px; font-weight: 500; color: var(--muted); white-space: nowrap; }
tbody tr.click { cursor: pointer; }
tbody tr.click:hover { background: var(--panel-2); }
tfoot td { font-weight: 600; border-bottom: 0; border-top: 2px solid var(--line-2); }
.empty { padding: 36px 12px; text-align: center; color: var(--muted); }

/* Status pills */
.pill { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 500; padding: 2px 9px; border-radius: 999px; background: var(--panel-2); color: var(--muted); white-space: nowrap; }
.pill.good, .pill.paid, .pill.approved, .pill.added { background: var(--good-soft); color: var(--good); }
.pill.warn, .pill.overdue, .pill.pending { background: var(--warn-soft); color: var(--warn); }
.pill.bad, .pill.void, .pill.rejected { background: var(--bad-soft); color: var(--bad); }
.pill.open, .pill.partial, .pill.info { background: var(--accent-soft); color: var(--accent); }

/* Tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 12px; color: var(--muted); font: 500 14px var(--ui); cursor: pointer; white-space: nowrap; }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }

/* Modal & toast */
.modal-back { position: fixed; inset: 0; background: rgba(5, 7, 12, .55); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; z-index: 50; overflow-y: auto; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); width: 100%; max-width: 560px; padding: 22px; box-shadow: var(--shadow); }
.modal.wide { max-width: 920px; }
.modal h2 { margin-bottom: 16px; }
.modal .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
.toast-host { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 80; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-weight: 500; box-shadow: var(--shadow); max-width: min(560px, 92vw); }
.toast.err { background: var(--bad); color: #fff; }
.err-text { color: var(--bad); font-size: 13px; }

/* Charts */
.bars { display: flex; align-items: flex-end; gap: 14px; height: 150px; padding-top: 8px; }
.bars .m { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 0; }
.bars .pair { display: flex; gap: 3px; align-items: flex-end; height: 120px; width: 100%; justify-content: center; }
.bars .b { width: 40%; max-width: 18px; border-radius: 4px 4px 0 0; min-height: 2px; }
.bars .b.in { background: var(--accent); }
.bars .b.out { background: var(--line-2); }
.bars .lbl { font-size: 11px; color: var(--faint); }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

@media (max-width: 520px) {
  .grid.kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi { padding: 12px; }
  .kpi .v { font-size: 19px; }
}

@media print {
  .no-print { display: none !important; }
  body { background: #fff; color: #000; }
  .card { border: 0; padding: 0; }
}