:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #667085;
  --border: #e3e6eb;
  --primary: #1f6feb;
  --primary-text: #ffffff;
  --danger: #c93c37;
  --ok: #1a7f37;
  --warn: #b35900;
  --warn-bg: #fff4e5;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --surface: #181e26;
    --text: #e6e9ee;
    --muted: #8b95a5;
    --border: #2a323d;
    --primary: #4c8dff;
    --danger: #f06a64;
    --ok: #4cc26b;
    --warn: #f0a04b;
    --warn-bg: #2e2312;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 17px; }
.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tabs a {
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}
.tabs a.active { background: var(--bg); color: var(--text); font-weight: 600; }

main { max-width: 1200px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 16px; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 2px; }
.stat.warn .value { color: var(--warn); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-2 .card { margin-bottom: 0; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.toolbar input[type="search"] { flex: 1 1 220px; }
.toolbar .primary { margin-left: auto; }

.row { display: flex; flex-wrap: wrap; gap: 8px; }

input, select, textarea, button, .button {
  font: inherit;
  color: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 8px 10px;
}
textarea { resize: vertical; }
button, .button { cursor: pointer; font-weight: 500; }
button:hover, .button:hover { border-color: var(--muted); }
button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
button.danger { color: var(--danger); }
button.small { padding: 4px 8px; font-size: 13px; }
.check { display: flex; align-items: center; gap: 6px; color: var(--muted); }

.table-wrap { padding: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; min-width: 160px; }
td .actions-cell { display: flex; gap: 4px; justify-content: flex-end; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.in { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.out { color: var(--danger); background: color-mix(in srgb, var(--danger) 14%, transparent); }
.badge.adjust { color: var(--primary); background: color-mix(in srgb, var(--primary) 14%, transparent); }
.badge.low { color: var(--warn); background: var(--warn-bg); }

.pos { color: var(--ok); }
.neg { color: var(--danger); }
.muted { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 24px; margin: 0; }
.error { color: var(--danger); margin: 8px 0 0; }

.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.list li:last-child { border-bottom: none; }

dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 20px;
  width: min(560px, calc(100vw - 32px));
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog h2 { margin: 0 0 16px; font-size: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea { color: var(--text); }
@media (max-width: 520px) { .form-grid { grid-template-columns: 1fr; } }
.actions { display: flex; gap: 8px; margin-top: 16px; }
.spacer { flex: 1; }

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 20;
}
code { background: var(--bg); padding: 1px 5px; border-radius: 4px; }