:root {
  --bg: #f3efe6;
  --ink: #1c1914;
  --muted: #6b6458;
  --card: #fffdf8;
  --line: #d9d0c2;
  --accent: #b45309;
  --danger: #b91c1c;
  --warn: #92400e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.45 "Source Han Sans SC", "Noto Sans SC", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #ffe8c7 0%, transparent 55%),
    linear-gradient(180deg, #f7f1e6, var(--bg));
  min-height: 100vh;
}
.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.nav {
  padding: 1rem;
  border-right: 1px solid var(--line);
  background: rgba(255,253,248,.9);
  display: flex; flex-direction: column; gap: .5rem;
}
.nav .brand { font-weight: 700; font-size: 1.05rem; margin-bottom: .5rem; }
.nav button {
  text-align: left; border: 1px solid var(--line); background: #fff; padding: .55rem .7rem; border-radius: 8px; cursor: pointer;
}
.nav button.active { border-color: var(--accent); background: #fff7ed; }
.scope { display: grid; gap: .35rem; margin-top: 1rem; }
.scope input { width: 100%; padding: .4rem; }
.main { padding: 1rem 1.25rem 2rem; }
.panel-head h2 { margin: 0 0 .25rem; font-size: 1.35rem; }
.muted { color: var(--muted); }
.tiny { font-size: 12px; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: .75rem 0; }
.toolbar button, .card button {
  border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 8px; padding: .45rem .8rem; cursor: pointer;
}
.status { padding: .6rem .75rem; border: 1px dashed var(--line); border-radius: 8px; background: #fff; margin-bottom: .75rem; }
.status[data-kind="error"] { border-color: var(--danger); color: var(--danger); }
.status[data-kind="warn"] { border-color: var(--warn); color: var(--warn); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: .75rem;
  min-height: 8rem;
}
.card h3 { margin: 0 0 .5rem; font-size: 1rem; }
.empty { color: var(--muted); margin: .25rem 0; }
.warn { color: var(--warn); }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td { border-bottom: 1px solid var(--line); padding: .35rem .3rem; text-align: left; }
pre.json { white-space: pre-wrap; word-break: break-word; font-size: 12px; background: #f8f4ec; padding: .5rem; border-radius: 8px; }
.write-block { border-top: 1px dashed var(--line); padding: .55rem 0; }
.write-fields { display: flex; flex-wrap: wrap; gap: .45rem; margin: .35rem 0; }
.write-fields label { display: flex; flex-direction: column; gap: .15rem; font-size: 12px; color: var(--muted); }
.write-fields input { min-width: 8rem; padding: .35rem; }
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 375px) {
  body { font-size: 13px; }
  .main, .nav { padding: .75rem; }
  .toolbar { gap: .35rem; }
  .write-fields input, .write-fields select { min-width: 100%; }
  .toolbar button { width: 100%; }
}
.import-step h4 { margin: .75rem 0 .35rem; font-size: .95rem; }
.import-step .role-list { margin: .35rem 0 .75rem; padding-left: 1.1rem; color: var(--muted); }
.import-step .ack { display: flex; gap: .4rem; align-items: flex-start; margin: .5rem 0; font-size: 13px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: .5rem; }
.table-scroll table.data { min-width: 28rem; }

.card.wide { grid-column: 1 / -1; }
.write-block { border-top: 1px dashed var(--line); padding: .55rem 0; }
.write-fields { display: flex; flex-wrap: wrap; gap: .45rem; margin: .35rem 0; }
.write-fields label { display: flex; flex-direction: column; gap: .15rem; font-size: 12px; color: var(--muted); }
.write-fields input { min-width: 8rem; padding: .35rem; }
.scope select { width: 100%; padding: .4rem; }
.nav a { color: var(--accent); }
.empty[data-kind="error"], .status[data-kind="error"] { color: var(--danger); }

.analysis-actions { display:flex;flex-wrap:wrap;gap:10px;margin:12px 0; }
.analysis-actions button { min-height:42px; }
button:disabled { cursor:not-allowed;opacity:.5; }
.metric-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin:16px 0; }
.metric-grid dt { color:var(--muted);font-size:13px; }
.metric-grid dd { font-size:22px;font-weight:650;margin:6px 0; }
.table-scroll { overflow-x:auto; }
.leader-analysis[hidden] { display:none; }
.cost-main { font-size:24px;font-weight:650;color:#225044; }
.nav select { min-height:42px;max-width:100%; }
.toolbar input,.toolbar select { min-height:40px;border:1px solid var(--line);border-radius:6px;padding:6px;background:var(--card); }

/* I47 menu B1 */
.menu-tabs button.active { border-color: var(--accent); background: #fff7ed; }
.menu-panel .write-block h4 { margin: .35rem 0; font-size: .95rem; }
.menu-panel .cost-main { margin: .5rem 0; }
.menu-view[hidden] { display: none; }
.write-fields select { min-width: 8rem; padding: .35rem; }

/* I47 B2 screens sit under the B1 master file. */
.b2-wrap { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); }
.b2-wrap table { width: 100%; border-collapse: collapse; }
.b2-wrap td, .b2-wrap th { border-bottom: 1px solid var(--line); text-align: left; padding: 6px 8px; }
.b2-wrap [data-error="1"] { color: #8a3b12; }

/* Root task navigation: business sources unchanged. */
.supply-task-nav{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 18px;position:sticky;top:0;background:#faf8f0;padding:12px 0;z-index:2}
.supply-task-nav button{min-height:44px;padding:10px 18px;border:1px solid #b8c9be;border-radius:10px;background:white;color:#244d3e;font-weight:600}
.supply-task-nav button[aria-pressed="true"]{background:#245947;color:white}
.supply-workspace [hidden]{display:none!important}
.supply-workspace input,.supply-workspace select,.supply-workspace button{min-height:40px}
.supply-workspace table{width:100%;border-collapse:collapse}
.supply-workspace th,.supply-workspace td{padding:9px;text-align:left;border-bottom:1px solid #e0e5df}
.supply-workspace .table-scroll{overflow-x:auto}
@media(max-width:700px){.supply-task-nav{position:static}.supply-task-nav button{flex:1 1 42%;padding:10px}}