/*
 * Light and dark are both defined properly.
 *
 * color-scheme is not optional here. Without it, a phone set to dark mode
 * force-darkens the backgrounds but leaves the authored text colour alone, so
 * you get dark text on a dark background and the page is unreadable. Staff open
 * payslips on their phones, so this is the difference between working and not.
 */
:root {
  color-scheme: light dark;

  --ink: #16191d;
  --muted: #6b7280;
  --line: #e4e7ec;
  --bg: #f6f7f9;
  --card: #ffffff;
  --accent: #1f3a5f;
  --accent-ink: #ffffff;
  --accent-soft: #eef2f7;
  --ok: #0f7b4f;
  --ok-soft: #e7f5ee;
  --ok-line: #b9e0cd;
  --warn: #8a5a00;
  --warn-soft: #fdf3e2;
  --warn-line: #f0d9ac;
  --bad: #a4232b;
  --bad-soft: #fceceb;
  --bad-line: #f0bdba;
  --field: #ffffff;
  --field-line: #cbd2db;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eaed;
    --muted: #9aa3af;
    --line: #2b313a;
    --bg: #14171c;
    --card: #1b1f26;
    --accent: #7ba7dd;
    --accent-ink: #10151c;
    --accent-soft: #202a37;
    --ok: #5fce9d;
    --ok-soft: #162a22;
    --ok-line: #27523f;
    --warn: #e0b25f;
    --warn-soft: #2a2318;
    --warn-line: #574526;
    --bad: #f08b86;
    --bad-soft: #2c1a1a;
    --bad-line: #5c2f2e;
    --field: #10141a;
    --field-line: #39414d;
  }

  /* The top bar is already dark, so it needs its own treatment rather than
     inheriting the now-light accent. */
  .topbar { background: #10151c; border-bottom: 1px solid var(--line); }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--accent); }

/* --- Shell ------------------------------------------------------------- */
.topbar {
  background: var(--accent);
  color: #fff;
  padding: 0 20px;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  min-height: 56px;
}
.brand { font-weight: 650; letter-spacing: -0.01em; }
.brand span { opacity: .7; font-weight: 400; }
.topbar nav { display: flex; gap: 18px; flex: 1; flex-wrap: wrap; }
.topbar nav a {
  color: #dce4ee;
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  font-size: 14px;
}
.topbar nav a:hover { color: #fff; }
.topbar nav a.active { color: #fff; border-bottom-color: #fff; }
.topbar .who { font-size: 13px; color: #c6d2e0; }
.topbar .who a { color: #fff; }

main { max-width: 1100px; margin: 0 auto; padding: 28px 20px 64px; }

h1 { font-size: 24px; margin: 0 0 4px; letter-spacing: -0.015em; }
h2 { font-size: 17px; margin: 0 0 12px; }
.sub { color: var(--muted); margin: 0 0 24px; }

/* --- Cards and tables --------------------------------------------------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card > h2 { margin-top: 0; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
td { padding: 10px; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }

/* --- Stats -------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat .label { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.stat .value { font-size: 22px; font-weight: 640; margin-top: 4px; font-variant-numeric: tabular-nums; }

/* --- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  border-radius: 7px;
  padding: 9px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 550;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.12); }
.btn:disabled { opacity: .45; cursor: not-allowed; filter: none; }
.btn-secondary { background: var(--card); color: var(--accent); }
.btn-approve { background: var(--ok); border-color: var(--ok); color: var(--accent-ink); font-size: 15px; padding: 11px 22px; }
.btn-sm { padding: 5px 11px; font-size: 13px; }

/* --- Forms -------------------------------------------------------------- */
label { display: block; font-size: 13px; font-weight: 550; margin-bottom: 5px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--field-line);
  border-radius: 7px;
  font: inherit;
  font-size: 14px;
  background: var(--field);
  color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.field { margin-bottom: 16px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0 18px; }
.hours-input { width: 90px; text-align: right; font-variant-numeric: tabular-nums; }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* --- Notices ------------------------------------------------------------ */
.notice { border-radius: var(--radius); padding: 14px 16px; margin-bottom: 20px; font-size: 14px; border: 1px solid; }
.notice h3 { margin: 0 0 6px; font-size: 14px; }
.notice ul { margin: 6px 0 0; padding-left: 20px; }
.notice-ok   { background: var(--ok-soft);   border-color: var(--ok-line);   color: var(--ok); }
.notice-warn { background: var(--warn-soft); border-color: var(--warn-line); color: var(--warn); }
.notice-bad  { background: var(--bad-soft);  border-color: var(--bad-line);  color: var(--bad); }

.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 560; }
.pill-draft    { background: var(--accent-soft); color: var(--accent); }
.pill-approved { background: var(--ok-soft);   color: var(--ok); }
.pill-paid     { background: var(--ok-soft);   color: var(--ok); }
.pill-pending  { background: var(--warn-soft); color: var(--warn); }
.pill-overdue  { background: var(--bad-soft);  color: var(--bad); }
.pill-voided   { background: var(--accent-soft); color: var(--muted); }

.muted { color: var(--muted); }
.right { text-align: right; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* --- Login -------------------------------------------------------------- */
.login-wrap { max-width: 380px; margin: 12vh auto; padding: 0 20px; }
.login-wrap h1 { text-align: center; margin-bottom: 22px; }

/* --- Training matrix ---------------------------------------------------- */
.matrix td, .matrix th { text-align: center; }
.matrix td:first-child, .matrix th:first-child { text-align: left; }
.cell-ok { background: var(--ok-soft); color: var(--ok); }
.cell-soon { background: var(--warn-soft); color: var(--warn); }
.cell-expired { background: var(--bad-soft); color: var(--bad); }
.cell-none { color: var(--muted); opacity: .5; }

@media (max-width: 640px) {
  .topbar-inner { padding: 8px 0; }
  main { padding: 20px 14px 48px; }
  .card { padding: 16px; }
}