:root {
  --red: #800000;
  --red-deep: #5e0000;
  --red-tint: #f7ecec;
  --ink: #1c1917;
  --muted: #6b6461;
  --paper: #fdfbf9;
  --card: #ffffff;
  --line: #e6ddd9;
  --ok: #1c7c46;
  --warn: #9a6b00;
  --err: #a11212;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

/* ------------------------------------------------------------ site header */
.topbar {
  background: var(--red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
}
.topbar img { height: 30px; width: auto; display: block; }
.topbar .who { font-size: 0.85rem; opacity: 0.9; }
.topbar .who strong { font-weight: 600; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }

h1 { font-size: 1.4rem; margin: 0 0 0.25rem; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; margin: 0 0 0.75rem; }
.sub { color: var(--muted); margin: 0 0 1.5rem; font-size: 0.92rem; }

/* ------------------------------------------------------------------- tabs */
.tabs { display: flex; gap: 0.25rem; border-bottom: 2px solid var(--line); margin-bottom: 1.5rem; }
.tab {
  appearance: none; border: 0; background: none; cursor: pointer;
  font: inherit; font-weight: 600; color: var(--muted);
  padding: 0.6rem 1rem; border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.tab[aria-selected="true"] { color: var(--red); border-bottom-color: var(--red); }
.panel[hidden] { display: none; }

/* ----------------------------------------------------------------- tables */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { background: var(--red-tint); color: var(--red-deep); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fbf7f5; }
td.num, th.num { text-align: right; }
.rangehead td {
  background: #f4ecea; font-weight: 700; color: var(--red-deep);
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em;
}
.sku { font-family: Consolas, "SF Mono", Menlo, monospace; font-size: 0.82rem; color: var(--muted); }
.muted { color: var(--muted); }
.derived { color: var(--muted); font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------------------- inputs */
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select {
  font: inherit; color: inherit; background: #fff;
  border: 1px solid var(--line); border-radius: 6px; padding: 0.4rem 0.5rem; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--red); outline-offset: -1px; border-color: var(--red); }
input.price { width: 6.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.field { margin-bottom: 0.9rem; }
.field label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 0.25rem; }

/* ---------------------------------------------------------------- buttons */
button.btn {
  appearance: none; font: inherit; font-weight: 600; cursor: pointer;
  background: var(--red); color: #fff; border: 1px solid var(--red);
  border-radius: 6px; padding: 0.45rem 1rem;
}
button.btn:hover { background: var(--red-deep); border-color: var(--red-deep); }
button.btn.ghost { background: #fff; color: var(--red); }
button.btn.ghost:hover { background: var(--red-tint); }
button.btn:disabled { opacity: 0.5; cursor: default; }
button.btn.small { padding: 0.25rem 0.65rem; font-size: 0.85rem; }

.toolbar { display: flex; gap: 0.6rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

/* ------------------------------------------------------------------ flags */
.pill { display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 0.1rem 0.5rem; border-radius: 999px; }
.pill.on { background: #e4f3ea; color: var(--ok); }
.pill.off { background: #f0eceb; color: var(--muted); }
.pill.disc { background: #fdf0d9; color: var(--warn); }

.note { border-left: 3px solid var(--red); background: var(--red-tint); padding: 0.7rem 0.9rem; border-radius: 0 6px 6px 0; font-size: 0.88rem; margin-bottom: 1.25rem; }
.msg { padding: 0.6rem 0.9rem; border-radius: 6px; font-size: 0.9rem; margin-bottom: 1rem; }
.msg.ok { background: #e4f3ea; color: var(--ok); }
.msg.err { background: #fdeaea; color: var(--err); }
.msg[hidden] { display: none; }

/* ------------------------------------------------------------ login card */
.loginpage { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.logincard { width: 100%; max-width: 22rem; }
.logincard .brand { background: var(--red); border-radius: var(--radius) var(--radius) 0 0; padding: 1.75rem 1.5rem; text-align: center; }
.logincard .brand img { width: 170px; max-width: 70%; height: auto; }
.logincard .body { background: var(--card); border: 1px solid var(--line); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); padding: 1.5rem; }

/* ------------------------------------------------------------------ modal */
.modalback { position: fixed; inset: 0; background: rgba(28,25,23,0.5); display: flex; align-items: center; justify-content: center; padding: 1.5rem; z-index: 50; }
.modalback[hidden] { display: none; }
.modal { background: var(--card); border-radius: var(--radius); padding: 1.5rem; width: 100%; max-width: 30rem; max-height: 90vh; overflow-y: auto; }