:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --border: #e4e7ec;
  --text: #101828;
  --text-2: #475467;
  --text-3: #98a2b3;
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #eff4ff;
  --brand: #f59e0b;
  --sidebar: #0f172a;
  --sidebar-2: #1e293b;
  --sidebar-text: #cbd5e1;
  --ok: #067647;
  --ok-soft: #ecfdf3;
  --warn: #b54708;
  --warn-soft: #fffaeb;
  --danger: #b42318;
  --danger-soft: #fef3f2;
  --info: #175cd3;
  --info-soft: #eff8ff;
  --neutral-soft: #f2f4f7;
  --in: #2563eb;
  --out: #f59e0b;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-lg: 0 20px 40px -12px rgba(16, 24, 40, 0.25);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 22px; font-weight: 650; }
h2 { font-size: 15px; font-weight: 600; }
.muted { color: var(--text-2); }
.faint { color: var(--text-3); }
.small { font-size: 12.5px; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, monospace; font-size: 12.5px; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

/* ---------- Layout ---------- */
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--sidebar); color: var(--sidebar-text); padding: 18px 12px;
  display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 18px; color: #fff; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px; background: var(--brand); color: var(--sidebar);
  display: grid; place-items: center; font-weight: 800; font-size: 17px;
}
.brand-name { font-weight: 650; font-size: 15px; line-height: 1.1; }
.brand-sub { font-size: 11.5px; color: #94a3b8; }
.nav-section { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: #64748b; padding: 14px 10px 6px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 7px;
  color: var(--sidebar-text); font-weight: 500; text-decoration: none;
}
.nav a:hover { background: var(--sidebar-2); color: #fff; }
.nav a.active { background: var(--sidebar-2); color: #fff; box-shadow: inset 3px 0 0 var(--brand); }
.nav svg { width: 18px; height: 18px; flex: none; opacity: 0.85; }
.nav .badge-count { margin-left: auto; background: var(--danger); color: #fff; font-size: 11px; border-radius: 999px; padding: 0 7px; font-weight: 600; }
.sidebar-footer { margin-top: auto; border-top: 1px solid var(--sidebar-2); padding: 12px 6px 0; display: flex; gap: 10px; align-items: center; }
.sidebar-footer .who { flex: 1; min-width: 0; }
.sidebar-footer .who div { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-footer .name { color: #fff; font-weight: 600; font-size: 13px; }
.sidebar-footer .role { font-size: 11.5px; color: #94a3b8; }
.icon-btn { background: none; border: 0; color: inherit; cursor: pointer; padding: 6px; border-radius: 6px; display: grid; place-items: center; }
.icon-btn:hover { background: var(--sidebar-2); color: #fff; }
.icon-btn svg { width: 18px; height: 18px; }

.main { min-width: 0; }
.mobile-bar { display: none; }
.page { padding: 28px 32px 48px; max-width: 1280px; margin: 0 auto; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-header .subtitle { color: var(--text-2); margin-top: 4px; }
.breadcrumb { font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---------- Cards ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.card-header .hint { font-size: 12.5px; color: var(--text-2); }
.card-body { padding: 16px 18px; }
.card-body.flush { padding: 0; }
.grid { display: grid; gap: 16px; }
.grid > *, .stack > * { min-width: 0; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-main { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.stack { display: flex; flex-direction: column; gap: 16px; }

.kpi { padding: 16px 18px; }
.kpi .label { color: var(--text-2); font-size: 12.5px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.kpi .value { font-size: 26px; font-weight: 650; margin-top: 6px; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.kpi .foot { font-size: 12.5px; color: var(--text-2); margin-top: 4px; }
.kpi .foot a { font-weight: 500; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

.dl { display: grid; grid-template-columns: max-content 1fr; gap: 9px 18px; margin: 0; }
.dl dt { color: var(--text-2); }
.dl dd { margin: 0; font-weight: 500; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; font-weight: 600; color: var(--text-2); background: var(--surface-2); padding: 9px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--surface-2); }
td .sub { font-size: 12px; color: var(--text-2); }
.empty { padding: 36px 18px; text-align: center; color: var(--text-2); }

/* ---------- Pills ---------- */
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 550; white-space: nowrap; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.danger { background: var(--danger-soft); color: var(--danger); }
.pill.info { background: var(--info-soft); color: var(--info); }
.pill.neutral { background: var(--neutral-soft); color: var(--text-2); }
.pill.brand { background: #fef0c7; color: #93370d; }
.qty-in { color: var(--ok); font-weight: 600; }
.qty-out { color: var(--danger); font-weight: 600; }

/* ---------- Forms ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 36px; padding: 0 14px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font: inherit; font-weight: 550; cursor: pointer; white-space: nowrap; text-decoration: none;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn svg { width: 16px; height: 16px; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.sm { height: 30px; padding: 0 10px; font-size: 13px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.block { width: 100%; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 550; color: var(--text); }
.field .help { font-size: 12px; color: var(--text-2); }
.input, select.input, textarea.input {
  height: 38px; padding: 0 11px; border: 1px solid #d0d5dd; border-radius: 8px; background: #fff;
  font: inherit; color: var(--text); width: 100%;
}
textarea.input { height: auto; min-height: 72px; padding: 9px 11px; resize: vertical; }
.input:focus { outline: 2px solid #b2ccff; outline-offset: 0; border-color: var(--primary); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.form-grid .full { grid-column: 1 / -1; }
.checkbox { display: flex; gap: 8px; align-items: center; font-weight: 500; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.toolbar .input { width: auto; height: 34px; }
.toolbar .search { flex: 1; min-width: 200px; }
.segmented { display: inline-flex; background: var(--neutral-soft); border-radius: 8px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.segmented button { border: 0; background: none; padding: 5px 11px; border-radius: 6px; font: inherit; font-size: 13px; font-weight: 550; color: var(--text-2); cursor: pointer; }
.segmented button.active { background: #fff; color: var(--text); box-shadow: var(--shadow); }
.segmented .count { color: var(--text-3); font-weight: 500; margin-left: 3px; }

.pagination { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-top: 1px solid var(--border); color: var(--text-2); font-size: 13px; }

/* ---------- Bars / charts ---------- */
.meter { height: 6px; background: var(--neutral-soft); border-radius: 99px; overflow: hidden; }
.meter span { display: block; height: 100%; border-radius: 99px; }
.list-row { display: flex; align-items: center; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--border); }
.list-row:last-child { border-bottom: 0; }
.list-row .grow { flex: 1; min-width: 0; }
.list-row .title { font-weight: 550; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chart svg { width: 100%; height: auto; display: block; }
.chart .axis { fill: var(--text-3); font-size: 10.5px; }
.legend { display: flex; gap: 14px; font-size: 12.5px; color: var(--text-2); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.hbar { display: grid; grid-template-columns: 150px 1fr 90px; gap: 10px; align-items: center; padding: 6px 0; font-size: 13px; }
.hbar .track { height: 8px; background: var(--neutral-soft); border-radius: 99px; overflow: hidden; }
.hbar .track span { display: block; height: 100%; background: var(--primary); border-radius: 99px; }

.wh-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.wh-card { border: 1px solid var(--border); border-radius: 9px; padding: 12px 14px; background: var(--surface-2); }
.wh-card .q { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }

.avatar { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-weight: 650; font-size: 12.5px; color: #fff; flex: none; }
.user-cell { display: flex; gap: 10px; align-items: center; }

.callout { display: flex; gap: 10px; padding: 12px 14px; border-radius: 9px; background: var(--info-soft); color: #194185; font-size: 13px; }
.callout.warn { background: var(--warn-soft); color: #93370d; }

/* ---------- Modal & toast ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45); display: grid; place-items: center; padding: 16px; z-index: 50; animation: fade 0.12s ease-out; }
.modal { background: #fff; border-radius: 12px; width: min(560px, 100%); max-height: calc(100vh - 32px); overflow: auto; box-shadow: var(--shadow-lg); }
.modal-header { padding: 18px 20px 4px; display: flex; justify-content: space-between; align-items: center; }
.modal-header .icon-btn { color: var(--text-2); }
.modal-header .icon-btn:hover { background: var(--neutral-soft); color: var(--text); }
.modal-body { padding: 14px 20px; }
.modal-footer { padding: 14px 20px 18px; display: flex; justify-content: flex-end; gap: 8px; }
.form-error { color: var(--danger); background: var(--danger-soft); padding: 9px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; }
.toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: var(--sidebar); color: #fff; padding: 11px 16px; border-radius: 9px; box-shadow: var(--shadow-lg); font-size: 13.5px; max-width: 380px; animation: slide 0.18s ease-out; }
.toast.error { background: var(--danger); }
@keyframes fade { from { opacity: 0; } }
@keyframes slide { from { transform: translateY(8px); opacity: 0; } }

.loading { padding: 60px; text-align: center; color: var(--text-3); }

/* ---------- Login ---------- */
.login { min-height: 100vh; display: grid; grid-template-columns: 1.05fr 1fr; }
.login-aside { background: var(--sidebar); color: var(--sidebar-text); padding: 48px; display: flex; flex-direction: column; justify-content: space-between; }
.login-aside h1 { color: #fff; font-size: 30px; margin: 28px 0 12px; max-width: 460px; }
.login-aside p { max-width: 460px; color: #94a3b8; font-size: 15px; }
.login-aside ul { padding: 0; list-style: none; display: grid; gap: 10px; margin: 26px 0 0; }
.login-aside li { display: flex; gap: 10px; align-items: center; color: #e2e8f0; }
.login-aside li svg { width: 18px; height: 18px; color: var(--brand); flex: none; }
.login-main { display: grid; place-items: center; padding: 32px 20px; }
.login-box { width: min(400px, 100%); }
.login-box h2 { font-size: 22px; margin-bottom: 4px; }
.demo-accounts { margin-top: 26px; border-top: 1px solid var(--border); padding-top: 18px; }
.demo-accounts .title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-2); font-weight: 600; margin-bottom: 10px; }
.demo-btn { display: flex; width: 100%; align-items: center; gap: 10px; padding: 9px 11px; border: 1px solid var(--border); background: #fff; border-radius: 9px; cursor: pointer; font: inherit; text-align: left; margin-bottom: 8px; }
.demo-btn:hover { border-color: var(--primary); background: var(--primary-soft); }
.demo-btn .grow { flex: 1; }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-main, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: 260px; z-index: 40; transform: translateX(-100%); transition: transform 0.18s; }
  .layout.nav-open .sidebar { transform: none; box-shadow: var(--shadow-lg); }
  .mobile-bar { display: flex; align-items: center; gap: 10px; padding: 10px 16px; background: var(--sidebar); color: #fff; position: sticky; top: 0; z-index: 30; }
  .page { padding: 20px 16px 40px; }
  .grid-2, .form-grid { grid-template-columns: 1fr; }
  .login { grid-template-columns: 1fr; }
  .login-aside { padding: 28px 20px; }
  .login-aside ul, .login-aside .foot { display: none; }
  .hbar { grid-template-columns: 110px 1fr 76px; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
}