:root {
  --bg: #f4f5f7; --card: #fff; --text: #1d2024; --muted: #6b7280; --line: #e3e5e8;
  --accent: #1f6feb; --accent-text: #fff; --bad: #c62828; --warn-bg: #fff6db; --err-bg: #fde8e8; --ok-bg: #e7f6ea;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15171a; --card: #1e2125; --text: #e8eaed; --muted: #9aa0a6; --line: #33373c;
          --accent: #4c8dff; --bad: #ff6b6b; --warn-bg: #3a3218; --err-bg: #3d1f1f; --ok-bg: #1d3524; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
main { max-width: 980px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.35rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 0; }
a { color: var(--accent); }
.top { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.top .brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--text); }
.top nav { display: flex; gap: 16px; align-items: center; }
.top nav a { text-decoration: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin: 12px 0; display: block; }
.card.narrow { max-width: 420px; margin: 24px auto; }
.item-link { text-decoration: none; color: inherit; margin: 8px 0; }
.row { display: flex; align-items: center; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; gap: 8px; }
.row.gap { gap: 8px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.big { font-size: 1.3rem; font-weight: 700; }
.bad { color: var(--bad); }
.btn { display: inline-block; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; cursor: pointer; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--bad); margin-top: 8px; }
.btn.wide { width: 100%; }
button.link { background: none; border: 0; color: var(--accent); font: inherit; cursor: pointer; padding: 0; }
button.x { background: none; border: 0; color: var(--muted); font-size: 1.3rem; cursor: pointer; line-height: 1; }
form.inline { display: inline; }
label { display: block; font-size: .9rem; color: var(--muted); margin-bottom: 10px; }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--text); font: inherit; }
input[type=checkbox] { width: auto; margin: 0; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0 12px; margin-top: 10px; align-items: end; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid > button { grid-column: 1 / -1; justify-self: start; margin-bottom: 10px; }
[hidden] { display: none !important; }
.filters { display: flex; gap: 8px; margin: 12px 0; }
.filters input { flex: 2; } .filters select { flex: 1; }
.badge { font-size: .78rem; padding: 2px 8px; border-radius: 99px; background: var(--line); white-space: nowrap; }
.badge.accepted { background: var(--ok-bg); } .badge.rejected { background: var(--err-bg); } .badge.sent { background: var(--warn-bg); }
.msg { padding: 10px 12px; border-radius: 8px; margin: 8px 0; background: var(--ok-bg); }
.msg.error { background: var(--err-bg); } .msg.warning { background: var(--warn-bg); }
.err { color: var(--bad); font-size: .85rem; margin: -6px 0 8px; }
.grid2 { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; }
.eco { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 8px; }
summary { cursor: pointer; color: var(--accent); }
details.add { margin-top: 8px; }
table.lines { width: 100%; border-collapse: collapse; margin-top: 10px; }
table.lines th { text-align: left; font-weight: 600; font-size: .85rem; color: var(--muted); border-bottom: 1px solid var(--line); padding: 6px 4px; }
table.lines td { border-bottom: 1px solid var(--line); padding: 8px 4px; vertical-align: top; }
table.lines tfoot td { font-weight: 600; border: 0; }
table.lines td:last-child { width: 28px; }
@media (max-width: 560px) {
  main { padding: 12px; }
  .filters { flex-direction: column; }
  .form-grid { grid-template-columns: 1fr; }
}
/* этап 2 */
.top { flex-wrap: wrap; gap: 6px; }
.top nav { flex-wrap: wrap; gap: 6px 14px; }
h3 { font-size: .95rem; margin: 14px 0 4px; }
.actions { margin: 10px 0; }
.rowlink { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
.rowlink:last-child { border-bottom: 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; margin-top: 8px; }
.stats a { display: flex; flex-direction: column; padding: 10px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: inherit; }
.stats b { font-size: 1.4rem; } .stats span { font-size: .8rem; color: var(--muted); }
.stepper { display: flex; list-style: none; padding: 0; margin: 0 0 12px; gap: 4px; overflow-x: auto; }
.stepper li { flex: 1; min-width: 90px; font-size: .78rem; padding: 6px; border-radius: 6px; background: var(--line); color: var(--muted); text-align: center; }
.stepper li.done { background: var(--ok-bg); color: var(--text); }
.stepper li.current { background: var(--accent); color: var(--accent-text); font-weight: 600; }
.comment-form { display: flex; gap: 8px; align-items: flex-end; margin: 8px 0; }
.comment-form textarea { flex: 1; }
.feed { list-style: none; padding: 0; margin: 0; }
.feed li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.feed li.status, .feed li.system { color: var(--muted); }
.feed li.payment { color: var(--text); }
.badge.new { background: var(--warn-bg); } .badge.won, .badge.closed { background: var(--ok-bg); }
.badge.lost, .badge.cancelled { background: var(--err-bg); }
.filters { flex-wrap: wrap; } .filters select { min-width: 140px; }
/* этап 3: переписка */
.badge.alarm { background: var(--bad); color: #fff; }
.nowrap { white-space: nowrap; }
.wait.warn { box-shadow: inset 3px 0 0 #e0a800; padding-left: 8px; }
.wait.alarm { box-shadow: inset 3px 0 0 var(--bad); padding-left: 8px; }
.wait.alarm .small { color: var(--bad); font-weight: 600; }
.chat { display: flex; flex-direction: column; gap: 6px; max-height: 420px; overflow-y: auto; padding: 8px 0; }
.bubble { max-width: 85%; padding: 7px 10px; border-radius: 10px; background: var(--line); }
.bubble.out { align-self: flex-end; background: var(--ok-bg); }
.bubble .meta { font-size: .72rem; color: var(--muted); margin-top: 2px; }
.ai-summary { background: var(--warn-bg); padding: 8px 10px; border-radius: 8px; font-size: .92rem; }
.small-btn { padding: 6px 10px; font-size: .88rem; }
.suggestion { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; align-items: center; }
/* этап 4: цех */
.huge { font-size: 1.25rem; padding: 16px; }
.btn.huge { margin: 6px 0; }
.running { border: 2px solid var(--accent); }
.timer { font-size: 2.4rem; font-weight: 700; font-variant-numeric: tabular-nums; margin: 6px 0; }
.task-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.task-row:last-of-type { border-bottom: 0; }
.task-row.done { opacity: .55; }
select.compact { width: auto; max-width: 170px; padding: 6px 8px; margin: 0; }
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; margin-top: 10px; }
.calday { display: flex; flex-direction: column; align-items: center; padding: 4px 2px; border-radius: 6px; border: 1px solid var(--line); text-decoration: none; color: inherit; font-size: .75rem; }
.calday b { font-size: .8rem; }
.calday.off { background: var(--bg); opacity: .7; }
.calday.late { border-color: var(--bad); }
.calday.auto { background: var(--warn-bg); }
.calday.away { box-shadow: inset 0 -3px 0 var(--accent); }
.calhead { text-align: center; font-size: .7rem; color: var(--muted); }
/* этап 5: склад */
.tabs { margin: 8px 0 12px; }
.issue-row { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); }
input.qty { width: 90px; margin: 0; }
/* меню на телефоне */
.menu-btn { display: none; cursor: pointer; color: var(--accent); }
@media (max-width: 760px) {
  .menu-btn { display: inline-block; }
  .top nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; gap: 10px; padding: 8px 0; }
  #menu-toggle:checked ~ nav { display: flex; }
}