:root {
  --paper: #f6f4ef;
  --card: #ffffff;
  --ink: #1f1d1a;
  --ink-2: #3a3732;
  --muted: #7a756b;
  --line: #e6e3dc;
  --line-2: #d8d4ca;
  --accent: #1f6f4a;
  --accent-soft: #e4f1ea;
  --warn: #9a5b12;
  --warn-soft: #fbefdc;
  --bad: #a3302b;
  --bad-soft: #f8e3e1;
  --win: #5b3fa3;
  --win-soft: #ece6f8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(31, 29, 26, .05), 0 4px 16px rgba(31, 29, 26, .04);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 24px; line-height: 1.25; margin: 0 0 4px; letter-spacing: -.01em; }
h2 { font-size: 16px; margin: 0 0 12px; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }

/* układ */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--ink); color: #e9e6df; padding: 22px 14px; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 700; font-size: 15px; padding: 0 10px 2px; color: #fff; }
.brand-sub { font-size: 12px; color: #a39e93; padding: 0 10px 20px; }
.nav a { display: block; padding: 8px 10px; border-radius: 8px; color: #d6d2c9; margin-bottom: 2px; }
.nav a:hover { background: #2c2a26; text-decoration: none; color: #fff; }
.nav a.on { background: #34312c; color: #fff; font-weight: 600; }
.side-foot { position: absolute; bottom: 18px; left: 14px; right: 14px; font-size: 12px; color: #a39e93; }
.side-foot button { background: none; border: 0; color: #d6d2c9; padding: 0; cursor: pointer; font: inherit; }
.main { padding: 28px 32px 48px; max-width: 1280px; width: 100%; }
.head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }

/* karty */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kpi .label { font-size: 12px; color: var(--muted); }
.kpi .value { font-size: 26px; font-weight: 700; letter-spacing: -.02em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .hint { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* tabele */
table.t { width: 100%; border-collapse: collapse; }
.t th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line-2); white-space: nowrap; }
.t td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.t tr:last-child td { border-bottom: 0; }
.t tr.group td { background: #faf9f6; font-weight: 700; padding-top: 14px; }
.tablewrap { overflow-x: auto; }

/* formularze */
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], select, textarea {
  font: inherit; color: var(--ink); background: #fff; border: 1px solid var(--line-2); border-radius: 8px; padding: 7px 10px; min-width: 0;
}
textarea { width: 100%; min-height: 64px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
label { font-size: 13px; color: var(--ink-2); }
.btn { display: inline-flex; align-items: center; gap: 6px; font: inherit; font-weight: 600; font-size: 13px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line-2); background: #fff; color: var(--ink); cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--ink-2); text-decoration: none; }
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: #000; }
.btn-good { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.inline { display: inline; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }

/* znaczniki */
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.pill-neutral { background: #efece5; color: var(--ink-2); }
.pill-good { background: var(--accent-soft); color: var(--accent); }
.pill-win { background: var(--win-soft); color: var(--win); }
.pill-warn { background: var(--warn-soft); color: var(--warn); }
.pill-muted { background: #f3f1ec; color: var(--muted); }
.chip { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 5px; margin: 0 4px 4px 0; background: #efece5; color: var(--ink-2); white-space: nowrap; }
.chip-churn { background: var(--bad-soft); color: var(--bad); }
.chip-overdue, .chip-drop { background: var(--warn-soft); color: var(--warn); }
.chip-season, .chip-newcust { background: #e6eef8; color: #2a5a8f; }
.chip-category { background: #f3e9f1; color: #7d3a6c; }
.chip-restock, .chip-reminder, .chip-xsell { background: var(--accent-soft); color: var(--accent); }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; background: var(--accent-soft); color: var(--accent); font-weight: 600; word-break: break-word; }
.flash-error { background: var(--bad-soft); color: var(--bad); }
.notice { padding: 12px 14px; border-radius: 8px; background: #faf6ea; border: 1px solid #efe3c4; color: #6b5420; font-size: 13px; margin-bottom: 16px; }

details > summary { cursor: pointer; color: var(--accent); font-size: 12px; font-weight: 600; list-style: none; margin-top: 6px; }
details > summary::-webkit-details-marker { display: none; }
.draft { white-space: pre-wrap; background: #faf9f6; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-size: 13px; margin: 8px 0; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 2px 14px; font-size: 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* mini-wykres obrotu */
.spark { display: inline-block; margin-top: 6px; }
.spark svg { display: block; }
.spark-bar { fill: #cfc9bc; }
.spark-zero { fill: #ebe7df; }
.spark-last { fill: var(--accent); }
.spark-axis { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); margin-top: 2px; }
.value-big { font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* instrukcja */
.howto { padding: 14px 18px; }
.howto > summary { font-size: 14px; margin: 0; }
.howto ol { margin: 10px 0 8px; padding-left: 20px; }
.howto li { margin-bottom: 8px; color: var(--ink-2); }
.help h2 { margin-top: 4px; }
.help ol, .help ul { padding-left: 20px; margin: 0 0 8px; }
.help li { margin-bottom: 6px; }

/* tooltip */
.tip { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 15px; height: 15px; border-radius: 50%;
  background: #e8e4dc; color: var(--ink-2); font-size: 10px; font-weight: 700; cursor: help; vertical-align: 1px; text-transform: none; letter-spacing: 0; }
.tip:hover::after, .tip:focus::after {
  content: attr(data-tip); position: absolute; z-index: 20; right: 0; top: 22px; width: 280px; padding: 10px 12px; border-radius: 8px;
  background: var(--ink); color: #f3f1ec; font-size: 12px; font-weight: 400; line-height: 1.45; text-align: left; white-space: normal;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
}
.tip:focus { outline: none; }

/* logowanie */
.bare { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login { width: 100%; max-width: 360px; }
.login .field { display: grid; gap: 4px; margin-bottom: 12px; }
.login input { width: 100%; }

/* strona handlowca */
.rep-wrap { max-width: 760px; margin: 0 auto; padding: 28px 16px 64px; }
.rep-top { margin-bottom: 18px; }
.reco { background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 14px; scroll-margin-top: 16px; }
.reco:target { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.reco-meta { font-size: 12px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.reco-name { font-size: 17px; font-weight: 700; margin: 4px 0 6px; }
.reco-reason { color: var(--ink-2); }
.reco-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; align-items: center; }
.confirm { background: var(--accent-soft); border: 1px solid #bfdccc; border-radius: 10px; padding: 12px 14px; margin-top: 12px; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; padding: 14px; }
  .nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .brand-sub { padding-bottom: 10px; }
  .side-foot { position: static; margin-top: 10px; }
  .main { padding: 20px 16px 40px; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2 { grid-template-columns: 1fr; }
}