:root {
  --green-900: #0c2f1e;
  --green-800: #12452c;
  --green-700: #176339;
  --green-600: #1e7d48;
  --green-500: #2e9c5f;
  --green-100: #ddeee3;
  --green-50:  #eef5f0;
  --ink:       #1d2b23;
  --ink-soft:  #5c6b62;
  --line:      #ccdcd2;
  --paper:     #ffffff;
  --bg:        #f2f6f3;
  --amber-bg:  #fdf3d7;
  --amber-ink: #7a5a08;
  --red:       #b3372f;
  --red-dark:  #93251e;
}

* { box-sizing: border-box; }
body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  margin: 0; background: var(--bg); color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "cv02", "cv03", "cv04";
}
main { max-width: 1200px; margin: 0 auto; padding: 24px 20px 60px; }
h1 { font-size: 1.45rem; font-weight: 650; letter-spacing: -0.01em; margin: 0.4em 0 0.8em; }
h2 { font-size: 1.1rem; font-weight: 650; margin-top: 1.8em; color: var(--green-800); }
h1 + p.muted { margin-top: -0.6em; }
a { color: var(--green-700); text-decoration: none; }
a:hover { color: var(--green-600); text-decoration: underline; }

/* ---------- Top navigation ---------- */
.topnav {
  background: linear-gradient(180deg, var(--green-800), var(--green-900));
  color: #fff; padding: 12px 24px;
  display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
  box-shadow: 0 2px 10px rgba(12, 47, 30, 0.25);
}
.topnav a {
  color: #cfe6d8; font-size: 0.93rem; padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.topnav a:hover { color: #fff; text-decoration: none; border-bottom-color: var(--green-500); }
.topnav .brand {
  font-weight: 700; letter-spacing: 0.04em; font-size: 0.98rem; color: #fff;
  margin-right: 12px; padding-left: 26px; position: relative;
}
.topnav .brand::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; background: var(--green-500);
  box-shadow: inset 0 0 0 3px var(--green-900), 0 0 0 2px var(--green-500);
}
.topnav form { margin-left: auto; }
.topnav button.link { color: #a9cbb8; font-size: 0.85rem; }
.topnav button.link:hover { color: #fff; }

/* ---------- Tables ---------- */
table {
  border-collapse: separate; border-spacing: 0; width: 100%;
  background: var(--paper); margin: 14px 0;
  border: 1px solid var(--line); overflow: hidden;
  box-shadow: 0 1px 3px rgba(12, 47, 30, 0.06);
}
th, td {
  border-bottom: 1px solid var(--line); border-right: 1px solid #e4ede8;
  padding: 8px 11px; text-align: left; font-size: 0.9rem;
}
th:last-child, td:last-child { border-right: none; }
tr:last-child td { border-bottom: none; }
th {
  background: var(--green-100); color: var(--green-900);
  font-weight: 650; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em;
}
tbody tr:hover td, table tr:hover td { background: var(--green-50); }
td.r, th.r { text-align: right; font-variant-numeric: tabular-nums; }
tr.total td {
  font-weight: 700; background: var(--green-100); color: var(--green-900);
  border-top: 2px solid var(--green-600);
}
tr.total:hover td { background: var(--green-100); }

/* ---------- Cards ---------- */
.card {
  background: var(--paper); border: 1px solid var(--line); padding: 18px 22px; margin: 16px 0;
  box-shadow: 0 1px 3px rgba(12, 47, 30, 0.06);
}
.cards { display: flex; gap: 16px; flex-wrap: wrap; }
.cards .card { flex: 1; min-width: 180px; border-top: 3px solid var(--green-600); }
.stat { font-size: 1.9rem; font-weight: 750; color: var(--green-700); line-height: 1.2; }

/* ---------- Forms ---------- */
label { display: block; font-size: 0.83rem; margin: 10px 0 3px; color: var(--ink-soft); font-weight: 550; }
input, select, textarea {
  padding: 7px 10px; border: 1px solid var(--line); font: inherit; width: 100%; max-width: 320px; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--green-600);
  box-shadow: 0 0 0 3px rgba(30, 125, 72, 0.15);
}
input.short { max-width: 110px; }

button, .btn {
  background: var(--green-700); border: none; color: #fff;
  padding: 8px 16px; cursor: pointer; font: inherit; font-weight: 550;
  transition: background 0.12s ease;
  display: inline-block; text-decoration: none;
}
button:hover, .btn:hover { background: var(--green-600); color: #fff; text-decoration: none; }
a.btn { color: #fff; }
button.danger { background: var(--red); } button.danger:hover { background: var(--red-dark); }
button.ghost {
  background: var(--green-50); color: var(--green-800);
  border: 1px solid var(--green-100);
}
button.ghost:hover { background: var(--green-100); }
button.link { background: none; color: var(--green-700); padding: 0; font-weight: 500; }
button.link:hover { background: none; text-decoration: underline; }
form.inline { display: inline; }
.row { display: flex; gap: 16px; flex-wrap: wrap; align-items: end; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }

/* ---------- Messages & badges ---------- */
.msg { background: var(--green-100); border: 1px solid var(--green-500); color: var(--green-900); padding: 9px 14px; }
.err { background: #fbe3e1; border: 1px solid #d68983; color: #6e1a14; padding: 9px 14px; }
.muted { color: var(--ink-soft); font-size: 0.85rem; }
.badge {
  display: inline-block; padding: 2px 10px; font-size: 0.75rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.04em;
  vertical-align: middle;
}
.badge.draft { background: var(--amber-bg); color: var(--amber-ink); border: 1px solid #e5c765; }
.badge.final { background: var(--green-100); color: var(--green-800); border: 1px solid var(--green-500); }

/* ---------- Payslips (modelled on the "US$ PS" sheet) ---------- */
.payslip {
  background: var(--paper); border: 1.5px solid var(--green-800); padding: 20px 26px; margin: 20px 0; max-width: 800px; page-break-inside: avoid;
}
.payslip h3 {
  text-align: center; letter-spacing: 5px; margin: 0 0 14px;
  color: var(--green-800); font-weight: 750;
  border-bottom: 2px solid var(--green-600); padding-bottom: 8px;
}
.payslip table { margin: 8px 0; box-shadow: none; }
.payslip th, .payslip td { font-size: 0.84rem; padding: 5px 9px; }
.ps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 28px; }
.ps-line {
  display: flex; justify-content: space-between;
  border-bottom: 1px dotted #9db5a7; padding: 3px 0; font-size: 0.88rem;
}
.ps-line span:first-child { color: var(--ink-soft); }

/* ---------- Login ---------- */
.login-box { max-width: 390px; margin: 9vh auto; border-top: 4px solid var(--green-600); }
.login-box h1 { font-size: 1.2rem; color: var(--green-800); }
.login-box input { max-width: 100%; }
.login-box button { width: 100%; padding: 10px; }

/* ---------- Print ---------- */
@media print {
  .no-print { display: none !important; }
  body { background: #fff; }
  main { max-width: none; padding: 0; }
  table { box-shadow: none; }
  .payslip { border: 1.5px solid #000; margin: 0 0 20px; }
  .payslip h3 { color: #000; border-bottom-color: #000; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  /* wide tables (run summary, NSSA) scroll sideways instead of breaking the page */
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table tr { white-space: nowrap; }
}

@media (max-width: 720px) {
  main { padding: 14px 12px 50px; }
  h1 { font-size: 1.25rem; }
  .grid2 { grid-template-columns: 1fr; }
  .cards { flex-direction: column; }
  .cards .card { min-width: 0; }
  .card { padding: 14px 14px; }
  .row { gap: 10px; }
  .row > div { flex: 1 1 45%; min-width: 130px; }
  input, select, textarea { max-width: 100%; }
  input.short { max-width: 100%; }
  button, .btn { padding: 9px 14px; }

  .topnav { gap: 4px 14px; padding: 10px 14px; }
  .topnav .brand { width: 100%; margin-right: 0; }
  .topnav a { font-size: 0.88rem; }
  .topnav form { margin-left: 0; width: 100%; }

  .payslip { padding: 14px 14px; }
  .ps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .topnav a { font-size: 0.82rem; }
  th, td { padding: 6px 8px; font-size: 0.84rem; }
}