:root {
  --brand: #2563eb;
  --brand-dark: #1e40af;
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.4; }

.app-shell { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: 260px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 2rem; padding: 0 0.5rem; }
.brand-mark { background: var(--brand); color: white; width: 32px; height: 32px; border-radius: 6px; display: grid; place-items: center; font-weight: 800; font-size: 1.2rem; }
.brand strong { font-size: 1.1rem; letter-spacing: -0.02em; }

.nav-list { display: flex; flex-direction: column; gap: 4px; }
.nav-button {
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: 0.15s;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}
.nav-button:hover { background: #f1f5f9; color: var(--text); }
.nav-button.is-active { background: #eff6ff; color: var(--brand); }

/* ── Layout ── */
.main { flex: 1; padding: 2rem; max-width: 1600px; }
.view { display: none; }
.view.is-active { display: block; }

.topbar { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 2rem; }
.eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 700; margin-bottom: 4px; }
h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.03em; }

/* ── Components ── */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 1px 2px rgba(0,0,0,0.05); margin-bottom: 1.5rem; }
.panel-heading { padding: 12px 16px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.panel-heading h2 { font-size: 14px; font-weight: 700; color: var(--text); }

/* ── Dashboard ── */
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.metric-card { background: var(--surface); padding: 16px; border-radius: var(--radius); border: 1px solid var(--border); }
.metric-card .label { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 4px; }
.metric-card strong { font-size: 1.5rem; font-weight: 700; display: block; }

.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 1.5rem; }

/* ── Orders ── */
.orders-layout { display: grid; grid-template-columns: 1fr 420px; gap: 1.5rem; align-items: start; }
.toolbar { display: flex; gap: 12px; margin-bottom: 1.5rem; background: var(--surface); padding: 12px; border-radius: var(--radius); border: 1px solid var(--border); }

/* ── Table ── */
table { width: 100%; border-collapse: collapse; }
th { padding: 10px 16px; text-align: left; font-size: 11px; text-transform: uppercase; color: var(--text-muted); border-bottom: 1px solid var(--border); background: #fafafa; }
td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
tr:hover { background: #f8fafc; }
tr.is-selected { background: #f0f7ff; }

/* ── Progress ── */
.prog-track { height: 6px; background: #e2e8f0; border-radius: 10px; overflow: hidden; flex: 1; }
.prog-fill { height: 100%; background: var(--brand); transition: 0.4s; }
.prog-fill.final { background: var(--success); }
.prog-fill.greige { background: var(--warning); }

/* ── PI Detail ── */
.pi-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 1rem; padding: 16px; background: #f8fafc; border-bottom: 1px solid var(--border); }
.pi-summary div { display: flex; flex-direction: column; }
.pi-summary span { font-size: 11px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; }
.pi-summary strong { font-size: 14px; font-weight: 700; }

.colour-bar { display: flex; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); overflow-x: auto; }
.colour-chip { padding: 4px 12px; border-radius: 16px; border: 1px solid var(--border); font-size: 12px; font-weight: 600; cursor: pointer; background: white; white-space: nowrap; }
.colour-chip.is-active { background: var(--brand); color: white; border-color: var(--brand); }

.fabric-group-header { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border: none; background: white; cursor: pointer; text-align: left; }
.fabric-group-header:hover { background: #f8fafc; }
.fg-meta { font-size: 12px; color: var(--text-muted); display: block; }
.fg-right { display: flex; align-items: center; gap: 1rem; }

/* ── Status Stack ── */
.status-stack { padding: 1rem; }
.status-stack-row { display: flex; align-items: center; gap: 12px; padding: 6px 0; font-size: 13px; }
.status-stack-row strong { width: 110px; }

/* ── Chips ── */
.chip { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; text-transform: uppercase; background: #e2e8f0; }
.chip.good { background: #d1fae5; color: #065f46; }
.chip.warn { background: #fef3c7; color: #92400e; }
.chip.bad { background: #fee2e2; color: #991b1b; }

.secondary-button { background: white; color: var(--text); padding: 8px 12px; border-radius: 6px; font-weight: 600; cursor: pointer; border: 1px solid var(--border); }
.secondary-button:hover { background: #f8fafc; }
.primary-button { background: var(--brand); color: white; padding: 8px 16px; border-radius: 6px; font-weight: 600; cursor: pointer; border: none; }
.primary-button:hover { background: var(--brand-dark); }

.sync-box { margin-top: auto; display: flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 12px; padding: 10px; border: 1px solid var(--border); border-radius: 6px; }
.sync-dot { width: 8px; height: 8px; border-radius: 999px; background: var(--warning); }
.sync-dot.is-online { background: var(--success); }
.sync-dot.is-error { background: var(--danger); }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.muted { color: var(--text-muted); font-size: 12px; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr); gap: 1.5rem; }
.mini-list, .queue-list, .status-stack, .master-list, .grouped-items { display: grid; gap: 10px; }
.mini-row, .queue-item, .master-card { display: flex; justify-content: space-between; gap: 12px; padding: 12px; border: 1px solid var(--border); border-radius: 6px; background: white; text-align: left; }
.queue-item { width: 100%; cursor: pointer; }
.master-card { display: grid; }

.pipeline { display: grid; grid-template-columns: repeat(11, auto); align-items: center; gap: 10px; padding: 16px; overflow-x: auto; }
.pipeline-stage { min-width: 96px; display: grid; gap: 5px; justify-items: center; text-align: center; }
.pipeline-icon { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 999px; background: #eff6ff; color: var(--brand); font-weight: 800; }
.pipeline-count { font-size: 18px; font-weight: 800; }
.pipeline-label { color: var(--text-muted); font-size: 12px; font-weight: 700; }
.pipeline-bar { width: 100%; height: 5px; background: #e2e8f0; border-radius: 999px; overflow: hidden; }
.pipeline-bar span { display: block; height: 100%; background: var(--brand); }
.pipeline-arrow { color: var(--text-muted); font-size: 12px; }

.fabric-group { border-top: 1px solid var(--border); }
.fabric-group:first-child { border-top: 0; }
.fg-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.fg-chevron { display: inline-block; color: var(--text-muted); transition: transform 0.15s ease; }
.fg-chevron.is-open { transform: rotate(90deg); }
.fg-progress { width: 110px; }
.fg-pct { color: var(--text-muted); font-weight: 700; min-width: 38px; text-align: right; }
.fabric-group-body { display: grid; gap: 10px; padding: 12px 16px 16px; }
.fabric-group-body.is-collapsed { display: none; }

.item-card { width: 100%; display: grid; gap: 10px; padding: 12px; border: 1px solid var(--border); border-radius: 6px; background: white; text-align: left; cursor: pointer; }
.item-card:hover, .item-card.is-selected { border-color: #93c5fd; background: #f8fbff; }
.item-card-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.item-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; color: var(--text-muted); font-size: 12px; }
.progress-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.progress-tile { padding: 8px; background: #f8fafc; border-radius: 6px; }
.progress-tile span { display: block; color: var(--text-muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.progress-tile strong { display: block; margin-top: 3px; font-size: 13px; }

.workflow-panel { border-top: 1px solid var(--border); padding: 16px; }
.workflow-tabs { display: flex; gap: 8px; margin-bottom: 14px; overflow-x: auto; }
.tab-button { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: white; color: var(--text-muted); font-weight: 700; cursor: pointer; }
.tab-button.is-active { background: #eff6ff; border-color: #bfdbfe; color: var(--brand); }
.stack-form { display: grid; gap: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.form-grid.compact { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
label { display: grid; gap: 5px; color: var(--text-muted); font-size: 12px; font-weight: 700; }
input, select, textarea { width: 100%; min-height: 38px; border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; color: var(--text); background: white; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(37, 99, 235, 0.12); border-color: var(--brand); }

.empty-state { display: grid; place-items: center; gap: 6px; min-height: 160px; padding: 24px; color: var(--text-muted); text-align: center; }
.toast { position: fixed; right: 18px; bottom: 18px; max-width: min(420px, calc(100vw - 36px)); padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; background: white; box-shadow: 0 18px 45px rgba(15,23,42,0.12); z-index: 20; }

@media (max-width: 1100px) {
  .app-shell { display: block; padding-bottom: 72px; }
  .sidebar { position: fixed; inset: auto 0 0; z-index: 10; width: auto; height: auto; padding: 8px; border-right: 0; border-top: 1px solid var(--border); }
  .brand, .sync-box { display: none; }
  .nav-list { flex-direction: row; gap: 6px; }
  .nav-button { justify-content: center; min-height: 48px; padding: 8px; font-size: 13px; }
  .main { padding: 1rem; }
  .orders-layout { grid-template-columns: 1fr; }
  .content-grid, .dash-grid { grid-template-columns: 1fr; }
  .toolbar, .topbar { flex-wrap: wrap; }
  .fg-right { min-width: 120px; }
}