:root {
  --fg: #1a1a1a;
  --muted: #444;
  --bg: #f7f7f5;
  --card: #fff;
  --line: #ccc;
  --accent: #0b5cab;
  --danger: #8b1a1a;
  --ok: #1b5e20;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 1rem/1.45 "Segoe UI", system-ui, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
a { color: var(--accent); }
header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
header nav { display: flex; gap: 1rem; }
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #172334;
  text-decoration: none;
}
.brand-mark { display: block; width: 2.5rem; height: 2.5rem; }
.login-brand { margin-bottom: 1rem; }
.login-brand-mark { display: block; width: 5rem; height: 5rem; }
main { padding: 1.25rem; max-width: 72rem; }
h1 { font-size: 1.35rem; margin: 0 0 1rem; }
.flash { padding: 0.6rem 0.8rem; border: 1px solid var(--line); background: #fff8e1; margin-bottom: 1rem; }
.flash.error { background: #fdecea; border-color: var(--danger); }
.muted { color: var(--muted); }
table { border-collapse: collapse; width: 100%; background: var(--card); }
th, td { border: 1px solid var(--line); padding: 0.4rem 0.55rem; text-align: left; vertical-align: top; }
th { background: #eee; }
.outward-wrap { overflow-x: auto; }
.outward-table td.num, .outward-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.outward-table tr.total { font-weight: 600; }
label { display: block; margin: 0.5rem 0 0.2rem; }
input, select, button, textarea {
  font: inherit;
  padding: 0.35rem 0.5rem;
}
button, .btn {
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button.secondary, .btn.secondary { background: #555; }
button.danger { background: var(--danger); }
.row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: end; margin: 0.75rem 0; }
.stack { display: grid; gap: 0.5rem; max-width: 28rem; }
.panel { background: var(--card); border: 1px solid var(--line); padding: 1rem; margin: 1rem 0; }
.otp { border-color: var(--accent); background: #eef6ff; }
.spike { color: var(--danger); font-weight: 600; }
.req { color: var(--danger); font-weight: 600; }
.inbox-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 0.5rem;
}
.inbox-tabs > input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
.inbox-tabs > label {
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--line);
  border-bottom: 0;
  background: #eee;
  cursor: pointer;
  margin-right: 0.2rem;
}
.inbox-tabs > input:checked + label {
  background: var(--card);
  font-weight: 600;
}
.inbox-tabs > input:focus-visible + label {
  outline: 3px solid #f5c518;
  outline-offset: 2px;
}
.inbox-tabs > .tab-panel {
  display: none;
  order: 1;
  width: 100%;
  border: 1px solid var(--line);
  padding: 1rem;
  background: var(--card);
}
.inbox-tabs > #inbox-sales:checked ~ #panel-sales,
.inbox-tabs > #inbox-itc:checked ~ #panel-itc,
.inbox-tabs > #inbox-einv:checked ~ #panel-einv,
.inbox-tabs > #inbox-2b:checked ~ #panel-2b {
  display: block;
}
:focus-visible { outline: 3px solid #f5c518; outline-offset: 2px; }