/* Веб-кабинет SellerOps: спокойный деловой вид, без внешних шрифтов и библиотек. */
:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #667085;
  --line: #e3e6eb;
  --accent: #2f5bea;
  --accent-dark: #2448c4;
  --bad: #c62828;
  --bad-bg: #fdecea;
  --warn: #9a6200;
  --warn-bg: #fff4dc;
  --ok-bg: #e8f5e9;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; line-height: 1.5; }
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 .5rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem;
  padding: .75rem 1.5rem; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.nav { display: flex; gap: 1rem; flex: 1; }
.nav a { text-decoration: none; }
.who { display: flex; align-items: center; gap: .75rem; margin-left: auto; color: var(--muted); }

.page { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }
.narrow { max-width: 520px; margin: 0 auto; padding: 2rem 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }

form label { display: block; margin: 0 0 1rem; font-weight: 500; }
input[type=text], input[type=email], input[type=password] {
  display: block; width: 100%; margin-top: .35rem; padding: .6rem .7rem;
  font: inherit; border: 1px solid #cfd4dc; border-radius: 8px; background: #fff;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
button, .button {
  display: inline-block; padding: .6rem 1.2rem; font: inherit; font-weight: 600;
  color: #fff; background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; text-decoration: none;
}
button:hover, .button:hover { background: var(--accent-dark); }
.link-button { background: none; color: var(--accent); padding: 0; font-weight: 500; }
.link-button:hover { background: none; text-decoration: underline; }
form.inline { display: inline; }

.muted { color: var(--muted); }
.alert { padding: .75rem 1rem; border-radius: 8px; margin: 0 0 1rem; }
.alert ul { margin: .25rem 0 0; padding-left: 1.2rem; }
.alert p { margin: 0; }
.alert.error { background: var(--bad-bg); color: var(--bad); }
.alert.warning { background: var(--warn-bg); color: var(--warn); }
.error-text, .bad-text { color: var(--bad); }

.qr { display: block; margin: .5rem 0 1rem; image-rendering: pixelated; }
.key { font-size: 1.05rem; letter-spacing: .05em; word-break: break-all; }
details { margin-bottom: 1rem; }
.codes { columns: 2; padding-left: 1.2rem; font-size: 1.1rem; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0 0 1rem; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; color: var(--muted); }
.tile .num { font-size: 1.8rem; font-weight: 700; color: var(--text); }
.tile.bad .num { color: var(--bad); }

.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; vertical-align: top; padding: .65rem .8rem; border-bottom: 1px solid var(--line); }
th { font-size: .85rem; color: var(--muted); font-weight: 600; background: #fafbfc; }
tr:last-child td { border-bottom: 0; }
tr.inactive { opacity: .55; }
.badge { display: inline-block; padding: 0 .45rem; border-radius: 999px; font-size: .8rem; font-weight: 600; }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }

@media (max-width: 600px) {
  .topbar { padding: .75rem 1rem; }
  .who { margin-left: 0; width: 100%; justify-content: space-between; }
  .page { padding: 1rem; }
  .tile { padding: .75rem; }
  .tile .num { font-size: 1.4rem; }
  th, td { padding: .5rem; }
}