:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c1f24;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #005daa;
  --ok: #15803d;
  --warn: #b45309;
  --bad: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111418; --card: #1a1f26; --text: #e6e8eb; --muted: #9aa3ad; --line: #2b323b; --accent: #5aa9ff; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header { background: var(--card); border-bottom: 1px solid var(--line); }
header .inner { max-width: 1100px; margin: 0 auto; padding: 10px 16px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
header .brand { font-weight: 700; }
header nav a { margin-right: 14px; }
header form { margin-left: auto; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
h1 { font-size: 22px; margin: 6px 0 14px; }
h2 { font-size: 17px; margin: 22px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; margin-bottom: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.stat { font-size: 26px; font-weight: 700; }
.muted { color: var(--muted); }
.ok { color: var(--ok); } .warn { color: var(--warn); } .bad { color: var(--bad); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr.drop td { background: rgba(21, 128, 61, 0.08); }
.num { text-align: right; white-space: nowrap; }
.flash { background: #fef3c7; color: #78350f; border: 1px solid #fcd34d; padding: 8px 12px; border-radius: 6px; margin-bottom: 14px; }
form.inline { display: inline; }
input, select, textarea { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--text); }
input[type=text], input[type=url], input[type=password], input[type=number], textarea { min-width: 180px; }
button { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }
button.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 6px 0; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--line); }
.pill.in_stock { color: var(--ok); border-color: var(--ok); }
.pill.out_of_stock { color: var(--muted); }
.pill.blocked, .pill.error { color: var(--bad); border-color: var(--bad); }
.pill.open { color: var(--accent); border-color: var(--accent); }
.pill.claimed { color: var(--ok); border-color: var(--ok); }
pre { white-space: pre-wrap; font-size: 13px; }
.login { max-width: 360px; margin: 80px auto; }
.login input { width: 100%; margin-bottom: 10px; }
/* tables scroll sideways inside their card instead of breaking the page width */
.card { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.card > table { min-width: 520px; }
details table { min-width: 480px; }

@media (max-width: 700px) {
  body { font-size: 16px; }
  header .inner { padding: 8px 12px; gap: 8px; }
  header nav { display: flex; flex-wrap: wrap; gap: 4px 0; width: 100%; order: 3; }
  header nav a { padding: 8px 10px; margin: 0; border-radius: 6px; }
  header nav a:hover { background: var(--bg); text-decoration: none; }
  header form { margin-left: auto; }
  main { padding: 12px; }
  h1 { font-size: 20px; }
  .grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .card { padding: 12px; margin-bottom: 10px; }
  .stat { font-size: 22px; }
  table { font-size: 14px; }
  th, td { padding: 8px 6px; }
  /* forms stack; every control is full width and easy to tap */
  .row { flex-direction: column; align-items: stretch; gap: 8px; }
  .row input, .row select, .row textarea { width: 100% !important; min-width: 0 !important; box-sizing: border-box; }
  .row label { display: flex; align-items: center; gap: 8px; }
  .row label input { flex: 1; }
  .row button { width: 100%; padding: 12px; }
  .row button.secondary, .row button.danger { padding: 10px; }
  .row > strong, .row > span.muted { width: 100%; }
  .row > .pill { align-self: flex-start; }
  form.inline { display: block; margin-bottom: 8px; }
  form.inline button { width: 100%; padding: 12px; }
  input, select, textarea, button { font-size: 16px; } /* prevents iOS zoom-on-focus */
  .login { margin: 40px auto; }
  pre { font-size: 12px; }
}
@media (max-width: 420px) { .grid { grid-template-columns: 1fr; } }