:root {
  font-family: Inter, system-ui, 'Segoe UI', Arial, sans-serif;
  --orange: #ea580c;
  --slate: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f1f5f9;
  --white: #ffffff;
  color: var(--slate);
  background: var(--bg);
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-size: 14px; }
.shell { min-height: 100vh; padding: 20px; }

/* ── Login ─────────────────────────────────────────────────────────────────── */
.login {
  max-width: 420px;
  margin: 8vh auto 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, .10);
  padding: 32px;
}
.brand { color: var(--orange); font-weight: 800; letter-spacing: .06em; text-transform: uppercase; font-size: 11px; }
h1 { margin: 8px 0 6px; font-size: 22px; }
h2 { margin: 4px 0 2px; font-size: 18px; }
h3 { margin: 0 0 8px; }
p, .sub { color: var(--muted); font-size: 13px; margin: 0 0 4px; }
label { display: block; font-size: 12px; font-weight: 700; margin: 14px 0 5px; color: #334155; }
input, select, textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 9px 11px;
  font: inherit;
  font-size: 14px;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--orange); }
button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 0;
  border-radius: 6px;
  padding: 9px 16px;
  background: var(--orange);
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s, opacity .15s;
  white-space: nowrap;
}
button:hover { background: #c2410c; }
button.secondary { background: var(--border); color: var(--slate); }
button.secondary:hover { background: #cbd5e1; }
button.sm { padding: 7px 12px; font-size: 13px; }
button.link-btn { background: none; color: var(--orange); padding: 4px 0; font-weight: 600; font-size: 13px; }
button.link-btn:hover { background: none; text-decoration: underline; }
button:disabled { opacity: .5; cursor: not-allowed; }
.hidden { display: none !important; }
.message { margin-top: 12px; font-size: 13px; color: #b91c1c; min-height: 18px; }
.message.ok { color: #15803d; }
.otp-actions { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.otp-actions button:first-child { margin-top: 14px; }

/* ── App shell ─────────────────────────────────────────────────────────────── */
.app {
  max-width: 1280px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
  padding: 20px 24px;
}
.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

/* ── Stats ─────────────────────────────────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 18px;
}
.stat-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  background: #f8fafc;
}
.stat-card span { display: block; font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.stat-card b { display: block; margin-top: 6px; font-size: 20px; }
.stat-card.warn { border-color: #fcd34d; background: #fffbeb; }
.stat-card.good { border-color: #86efac; background: #f0fdf4; }
.stat-card.info { border-color: #93c5fd; background: #eff6ff; }

/* ── Tabs ──────────────────────────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
}
.tab {
  background: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 6px 6px 0 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}
.tab:hover { background: #f8fafc; color: var(--slate); }
.tab.active { color: var(--orange); border-bottom-color: var(--orange); background: none; }

/* ── Toolbar ───────────────────────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.toolbar input[type="search"],
.toolbar select { width: 180px; }
.toolbar input[type="date"] { width: 148px; }
.sep { color: var(--muted); font-size: 13px; }
.export-grp { display: flex; gap: 6px; margin-left: auto; }

/* ── Table ─────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--border); padding: 9px 10px; text-align: left; vertical-align: top; }
th { background: #f8fafc; color: #475569; font-size: 12px; font-weight: 700; white-space: nowrap; }
td.num, th.num { text-align: right; }
.dt { color: var(--muted); font-size: 12px; }
.tag { display: inline-block; border-radius: 999px; padding: 3px 9px; font-size: 11px; font-weight: 700; }
.totals-row td { background: #f8fafc; font-size: 13px; }
.balance { font-weight: 700; color: #0f172a; }
.tbl-footer { font-size: 12px; color: var(--muted); margin-top: 8px; padding: 4px 2px; }

/* ── Ledger summary ────────────────────────────────────────────────────────── */
.ledger-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}
.ledger-summary div {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  background: #f8fafc;
}
.ledger-summary span { display: block; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.ledger-summary b { display: block; margin-top: 5px; font-size: 18px; }

/* ── Dialog ────────────────────────────────────────────────────────────────── */
dialog {
  border: 0;
  border-radius: 10px;
  padding: 24px;
  width: 400px;
  max-width: 95vw;
  box-shadow: 0 24px 80px rgba(15, 23, 42, .28);
}
dialog::backdrop { background: rgba(15, 23, 42, .4); }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.dialog-actions button { margin-top: 0; }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .shell { padding: 10px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .app { padding: 14px; }
  .toolbar { gap: 6px; }
  .toolbar input[type="search"], .toolbar select { width: 100%; }
  .export-grp { margin-left: 0; }
  .ledger-summary { grid-template-columns: 1fr; }
}