:root {
  --bg: #0f1115;
  --panel: #1a1d24;
  --panel2: #22262f;
  --border: #2c313c;
  --text: #e6e8ec;
  --muted: #9aa1ad;
  --accent: #4f9cff;
  --good: #37c871;
  --bad: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
header.topbar .brand { font-weight: 700; font-size: 1.05rem; }
header.topbar nav a { margin-left: 1rem; color: var(--muted); }
header.topbar nav a:hover { color: var(--text); }
.logout-btn {
  background: none; border: 1px solid var(--border); color: var(--muted);
  padding: 0.3rem 0.7rem; border-radius: 6px; cursor: pointer; margin-left: 1rem;
}
.logout-btn:hover { color: var(--text); border-color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }
h1 { font-size: 1.5rem; margin: 0.2rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.8rem 0 0.8rem; }
.cards { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.card {
  flex: 1 1 200px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 1rem 1.15rem;
}
.card .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.card .value { font-size: 1.6rem; font-weight: 700; margin-top: 0.25rem; }
.card .sub { color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem; }
.net .value { color: var(--accent); }
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.pill { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.72rem;
        background: var(--panel2); color: var(--muted); border: 1px solid var(--border); }
.actions { display: flex; gap: 1rem; margin: 1rem 0; flex-wrap: wrap; }
.btn {
  display: inline-block; background: var(--accent); color: #06121f; font-weight: 600;
  padding: 0.55rem 1rem; border-radius: 8px; border: none; cursor: pointer; font-size: 0.9rem;
}
.btn:hover { text-decoration: none; opacity: 0.92; }
.btn.secondary { background: var(--panel2); color: var(--text); border: 1px solid var(--border); }
.btn.small { padding: 0.3rem 0.65rem; font-size: 0.8rem; }
form.stacked { background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 1.25rem; max-width: 460px; }
form.stacked label { display: block; margin: 0.85rem 0 0.3rem; color: var(--muted); font-size: 0.85rem; }
form.stacked input, form.stacked select {
  width: 100%; padding: 0.55rem 0.7rem; background: var(--panel2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem;
}
form.stacked input:focus, form.stacked select:focus { outline: none; border-color: var(--accent); }
form.stacked .submit { margin-top: 1.25rem; }
.error { background: rgba(255,107,107,0.12); border: 1px solid var(--bad); color: #ffb3b3;
  padding: 0.6rem 0.8rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.9rem; }
.hint { color: var(--muted); font-size: 0.85rem; margin-top: 0.4rem; }
.login-wrap { max-width: 380px; margin: 8vh auto 0; }
.login-wrap h1 { text-align: center; }
.empty { color: var(--muted); padding: 1rem; font-style: italic; }
.inline-form { display: inline; }

/* Phase B4 — Data Health (advisory only) */
.advisory { background: rgba(255,193,7,0.10); border: 1px solid rgba(255,193,7,0.35);
  color: var(--text); padding: 0.55rem 0.8rem; border-radius: 8px; margin: 0 0 1rem;
  font-size: 0.9rem; }
.data-health { margin: 1rem 0; }
.dh-list { list-style: none; padding: 0; margin: 0.5rem 0 0; }
.dh-item { display: flex; align-items: center; gap: 0.6rem; padding: 0.4rem 0;
  border-top: 1px solid var(--border); font-size: 0.9rem; }
.dh-item:first-child { border-top: none; }
.dh-cat { font-size: 0.72rem; }
.dh-prio { font-size: 0.72rem; color: var(--muted); min-width: 3.5rem; }
.dh-high .dh-prio { color: var(--bad); font-weight: 600; }
.dh-label { flex: 1; }
.dh-more summary { cursor: pointer; color: var(--accent); font-size: 0.85rem; margin-top: 0.5rem; }

/* Phase B5 — accessibility: visible focus states (keyboard navigation) */
a:focus-visible, .btn:focus-visible, button:focus-visible,
input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

/* Phase B5 — mobile-first: safe horizontal scrolling for wide data tables,
   stacked cards, touch-friendly controls, readable spacing. Additive only;
   desktop layout unchanged. No template/structure change. */
@media (max-width: 640px) {
  main { padding: 1rem 0.85rem 3rem; }
  h1 { font-size: 1.35rem; }
  h2 { font-size: 1.05rem; margin: 1.4rem 0 0.7rem; }

  /* wide tables scroll horizontally instead of overflowing / compressing */
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch;
          white-space: nowrap; }

  /* cards stack full-width */
  .cards { gap: 0.75rem; }
  .card { flex: 1 1 100%; }

  /* touch-friendly targets (>= 44px) */
  .btn { padding: 0.7rem 1rem; }
  .btn.small { padding: 0.55rem 0.8rem; font-size: 0.85rem; }
  header.topbar nav a { display: inline-block; padding: 0.4rem 0; }
  .logout-btn { padding: 0.5rem 0.8rem; }

  /* forms full-width, comfortable inputs */
  form.stacked { max-width: 100%; padding: 1rem; }
  form.stacked input, form.stacked select { padding: 0.7rem; font-size: 1rem; }

  /* data health items wrap cleanly */
  .dh-item { flex-wrap: wrap; gap: 0.4rem; }
  .dh-prio { min-width: auto; }
}