:root {
  --erp-primary: #176b87;
  --erp-primary-dark: #0f4f65;
  --erp-accent: #178f72;
  --erp-warn: #c77d18;
  --erp-bg: #f4f7f9;
  --erp-panel: #ffffff;
  --erp-text: #17212b;
  --erp-muted: #6b7280;
  --erp-border: #d8e0e6;
  --erp-sidebar: #162331;
  --erp-sidebar-soft: #223244;
  --erp-shadow: 0 0.75rem 1.75rem rgba(15, 79, 101, 0.08);
}

[data-theme="dark"] {
  --erp-bg: #101820;
  --erp-panel: #172330;
  --erp-text: #edf4f7;
  --erp-muted: #a9b5bd;
  --erp-border: #314354;
  --erp-sidebar: #0e151c;
  --erp-sidebar-soft: #182532;
  --bs-body-bg: var(--erp-bg);
  --bs-body-color: var(--erp-text);
  --bs-secondary-color: var(--erp-muted);
  --bs-border-color: var(--erp-border);
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Source Sans 3", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--erp-text); background: var(--erp-bg); }
a { text-decoration: none; }

/* ─── Sidebar ─── */
.sidebar { position: fixed; top: 0; left: 0; width: 280px; height: 100vh; z-index: 40; display: flex; flex-direction: column; color: #e9f3f5; background: var(--erp-sidebar); box-shadow: var(--erp-shadow); transition: transform .25s ease; }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: .5rem 1rem; border-bottom: 1px solid rgba(255,255,255,.1); min-height: 64px; }
.sidebar-close { color: #b8c5cc; border-color: rgba(255,255,255,.2); background: transparent; }
.brand { display: flex; align-items: center; gap: .75rem; }
.brand-logo { width: 48px; height: 48px; display: grid; place-items: center; border-radius: .5rem; background: #fff; color: var(--erp-primary-dark); font-weight: 800; flex-shrink: 0; overflow: hidden; }
.brand strong, .brand span { display: block; line-height: 1.2; }
.brand span, .sidebar-user span { color: #b8c5cc; font-size: .84rem; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: .5rem .75rem; }
.nav-group { margin: .85rem .5rem .25rem; color: #9fb0ba; font-size: .7rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.sidebar .nav-link { min-height: 36px; display: flex; align-items: center; gap: .65rem; padding: .45rem .65rem; border-radius: .35rem; color: #e7eef2; font-size: .9rem; }
.sidebar .nav-link:hover, .sidebar .nav-link.active { background: var(--erp-sidebar-soft); color: #fff; }
.sidebar .nav-link i { width: 1.15rem; text-align: center; flex-shrink: 0; }
.sidebar-user { margin: .75rem; padding: .75rem; border: 1px solid rgba(255,255,255,.12); border-radius: .5rem; background: rgba(255,255,255,.04); flex-shrink: 0; }

/* ─── Top Navigation Bar ─── */
.topnav { display: flex; align-items: stretch; gap: 0; padding: 0 1rem; background: var(--erp-panel); border-bottom: 1px solid var(--erp-border); overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.tn-link { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; padding: .45rem .85rem; color: var(--erp-muted); font-size: .65rem; font-weight: 700; white-space: nowrap; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; flex-shrink: 0; }
.tn-link i { font-size: 1.3rem; }
.tn-link:hover { color: var(--erp-primary); }
.tn-link.active, .tn-link:active { color: var(--erp-primary); border-bottom-color: var(--erp-primary); }

/* ─── Overlay ─── */
.overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 35; }

/* ─── Main ─── */
.erp-main { min-width: 0; margin-left: 280px; }
.topbar { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .65rem 1.25rem; border-bottom: 1px solid var(--erp-border); background: color-mix(in srgb, var(--erp-panel) 94%, transparent); position: sticky; top: 0; z-index: 10; }
.topbar h1 { margin: 0; font-size: 1.25rem; font-weight: 650; }
.eyebrow { display: block; color: var(--erp-muted); font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.topbar-actions { display: flex; align-items: center; gap: .5rem; }
.icon-btn { width: 36px; height: 36px; display: inline-grid; place-items: center; border: 1px solid var(--erp-border); border-radius: .375rem; background: var(--erp-panel); color: var(--erp-text); cursor: pointer; }
.content { padding: 1rem 1.25rem 2rem; }

/* ─── Panels & Cards ─── */
.panel, .metric-card { background: var(--erp-panel); border: 1px solid var(--erp-border); border-radius: .5rem; box-shadow: var(--erp-shadow); }
.panel { padding: 1rem; margin-bottom: 1rem; }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.panel-head h2 { margin: 0; font-size: 1.15rem; font-weight: 650; }
.panel-head p { margin: .15rem 0 0; color: var(--erp-muted); }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .8rem; margin-bottom: 1rem; }
.metric-card { padding: .9rem; }
.metric-card span { display: block; color: var(--erp-muted); font-size: .85rem; }
.metric-card strong { display: block; font-size: 1.65rem; line-height: 1.2; margin-top: .2rem; }
.split-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; }
.summary-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.summary-row div { padding: .85rem; border: 1px solid var(--erp-border); border-radius: .375rem; }
.summary-row span { color: var(--erp-muted); display: block; }
.summary-row strong { font-size: 1.1rem; }
.workflow-strip { margin-top: 1rem; display: flex; align-items: center; flex-wrap: wrap; gap: .6rem; }
.workflow-strip a { padding: .55rem .75rem; border-radius: .35rem; background: color-mix(in srgb, var(--erp-primary) 10%, var(--erp-panel)); color: var(--erp-primary-dark); font-weight: 700; }

/* ─── Forms ─── */
.toolbar-form { display: flex; gap: .5rem; margin-bottom: .75rem; max-width: 480px; }
.data-form { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .85rem; }
.data-form label { color: var(--erp-muted); font-size: .85rem; font-weight: 700; }
.data-form .form-control, .data-form .form-select, .toolbar-form .form-control { margin-top: .25rem; background-color: var(--erp-panel); color: var(--erp-text); border-color: var(--erp-border); }
.form-control::placeholder { color: color-mix(in srgb, var(--erp-muted) 82%, transparent); opacity: 1; }
.form-select option { color: #17212b; background: #fff; }
.form-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: .5rem; }

/* ─── Tables ─── */
.compact-table { font-size: .9rem; }
.table { --bs-table-bg: transparent; --bs-table-color: var(--erp-text); --bs-table-border-color: var(--erp-border); }
.btn-outline-secondary { --bs-btn-color: var(--erp-text); --bs-btn-border-color: color-mix(in srgb, var(--erp-border) 80%, var(--erp-text)); --bs-btn-hover-bg: var(--erp-text); --bs-btn-hover-border-color: var(--erp-text); --bs-btn-hover-color: var(--erp-panel); }
.text-muted, .form-text { color: var(--erp-muted) !important; }
.alert { color: var(--erp-text); border-color: var(--erp-border); background: color-mix(in srgb, var(--erp-panel) 86%, var(--erp-primary) 14%); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: 1 / -1; }

/* ─── Documents ─── */
.document-tabs, .document-actions { display: flex; align-items: center; justify-content: flex-end; gap: .4rem; flex-wrap: wrap; }
.document-tabs a { padding: .42rem .65rem; border: 1px solid var(--erp-border); border-radius: .35rem; color: var(--erp-text); background: var(--erp-panel); font-weight: 700; font-size: .88rem; }
.document-tabs a.active { color: #fff; background: var(--erp-primary); border-color: var(--erp-primary); }
.document-actions form { display: inline-flex; margin: 0; }
.document-form { display: block; }
.line-item-table input, .line-item-table select { min-width: 96px; }
.line-item-table [data-description] { min-width: 220px; }
.document-total-row { display: flex; justify-content: flex-end; gap: 1rem; flex-wrap: wrap; padding: .75rem 0; color: var(--erp-muted); }
.document-total-row strong { color: var(--erp-text); font-size: 1rem; }
.totals-summary { background: var(--erp-panel); border: 1px solid var(--erp-border); border-radius: .5rem; padding: .75rem 1rem; margin: .5rem 0; }
.totals-summary .grand-total { font-size: 1.1rem; font-weight: 700; color: var(--erp-primary); }
.grand-total strong { font-size: 1.1rem; }
.quick-create-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.documents-table td { vertical-align: middle; }
.documents-table strong { display: block; font-weight: 800; }
.cell-muted { display: block; color: var(--erp-muted); font-size: .8rem; margin-top: .1rem; }

/* ─── Documentation ─── */
.docs-help-center { display: grid; gap: 1rem; }
.docs-cover { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 460px); gap: 1.25rem; align-items: end; margin-bottom: 1rem; padding: 1.2rem; background: linear-gradient(135deg, color-mix(in srgb, var(--erp-panel) 88%, var(--erp-primary) 12%), var(--erp-panel)); border: 1px solid var(--erp-border); border-radius: .5rem; box-shadow: var(--erp-shadow); }
.docs-cover h2 { margin: .1rem 0 .35rem; font-size: clamp(1.45rem, 2.5vw, 2.15rem); font-weight: 850; letter-spacing: 0; }
.docs-cover p { max-width: 780px; margin: 0; color: var(--erp-muted); font-size: 1rem; line-height: 1.5; }
.docs-search-panel { display: grid; gap: .35rem; }
.docs-search-panel label { color: var(--erp-muted); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.docs-search-panel small { color: var(--erp-muted); font-weight: 700; }
.docs-searchbox { display: grid; grid-template-columns: 38px minmax(0, 1fr) 38px; align-items: center; min-height: 48px; border: 1px solid var(--erp-border); border-radius: .45rem; background: var(--erp-panel); overflow: hidden; }
.docs-searchbox i { text-align: center; color: var(--erp-muted); }
.docs-searchbox input { width: 100%; height: 100%; border: 0; outline: 0; background: transparent; color: var(--erp-text); font-size: .98rem; font-weight: 650; }
.docs-searchbox input::placeholder { color: color-mix(in srgb, var(--erp-muted) 75%, transparent); }
.docs-searchbox button { height: 100%; border: 0; border-left: 1px solid var(--erp-border); background: transparent; color: var(--erp-muted); }
.docs-searchbox button:hover { color: var(--erp-text); background: color-mix(in srgb, var(--erp-primary) 8%, var(--erp-panel)); }
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 1rem; align-items: start; }
.docs-sidebar { position: sticky; top: 88px; display: grid; gap: .25rem; padding: .85rem; background: var(--erp-panel); border: 1px solid var(--erp-border); border-radius: .5rem; box-shadow: var(--erp-shadow); }
.docs-sidebar strong { display: block; margin-bottom: .3rem; font-size: .95rem; }
.docs-sidebar a { display: flex; align-items: center; gap: .45rem; min-height: 34px; padding: .35rem .45rem; border-radius: .35rem; color: var(--erp-muted); font-weight: 800; }
.docs-sidebar a i { width: 1.1rem; text-align: center; }
.docs-sidebar a:hover, .docs-sidebar a.active { color: var(--erp-primary); background: color-mix(in srgb, var(--erp-primary) 10%, var(--erp-panel)); }
.docs-tip { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: .45rem; margin-top: .65rem; padding: .65rem; color: var(--erp-muted); border: 1px solid var(--erp-border); border-radius: .45rem; background: color-mix(in srgb, var(--erp-panel) 92%, var(--erp-accent) 8%); font-size: .82rem; line-height: 1.35; }
.docs-tip i { color: var(--erp-accent); }
.docs-content { display: grid; gap: 1rem; min-width: 0; }
.docs-section { padding: 1rem; background: var(--erp-panel); border: 1px solid var(--erp-border); border-radius: .5rem; box-shadow: var(--erp-shadow); scroll-margin-top: 88px; }
.docs-section-head { margin-bottom: .85rem; }
.docs-section-head h3 { margin: .1rem 0 .25rem; font-size: 1.22rem; font-weight: 850; letter-spacing: 0; }
.docs-section-head p { max-width: 860px; margin: 0; color: var(--erp-muted); line-height: 1.5; }
.docs-kicker { display: inline-flex; align-items: center; min-height: 22px; padding: .12rem .45rem; border-radius: 999px; color: var(--erp-primary-dark); background: color-mix(in srgb, var(--erp-primary) 12%, var(--erp-panel)); border: 1px solid color-mix(in srgb, var(--erp-primary) 24%, var(--erp-border)); font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .05em; }
[data-theme="dark"] .docs-kicker { color: #9cd2e5; }
.docs-stepper { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .65rem; }
.docs-step, .docs-link-card, .docs-workflow, .docs-document-card, .docs-alert, .docs-faq, .docs-term { border: 1px solid var(--erp-border); border-radius: .5rem; background: color-mix(in srgb, var(--erp-panel) 94%, var(--erp-primary) 6%); }
.docs-step { position: relative; padding: .85rem; min-height: 150px; }
.docs-step span { width: 30px; height: 30px; display: grid; place-items: center; margin-bottom: .55rem; border-radius: .35rem; color: #fff; background: var(--erp-primary); font-weight: 850; }
.docs-step strong, .docs-link-card strong, .docs-document-card strong, .docs-alert strong, .docs-term strong { display: block; color: var(--erp-text); font-weight: 850; }
.docs-step p, .docs-document-card p, .docs-alert p, .docs-term p { margin: .35rem 0 0; color: var(--erp-muted); line-height: 1.45; }
.docs-link-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .65rem; }
.docs-link-card { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: .55rem; align-items: start; padding: .75rem; color: var(--erp-text); min-height: 98px; }
.docs-link-card:hover { border-color: var(--erp-primary); box-shadow: 0 .5rem 1.25rem rgba(15, 79, 101, .12); transform: translateY(-1px); }
.docs-link-card i { width: 34px; height: 34px; display: grid; place-items: center; border-radius: .4rem; color: #fff; background: var(--erp-primary); }
.docs-link-card small { display: block; margin-top: .15rem; color: var(--erp-muted); line-height: 1.35; }
.docs-workflows { display: grid; gap: .75rem; }
.docs-workflow { padding: .9rem; }
.docs-workflow h4 { margin: 0 0 .65rem; font-size: 1rem; font-weight: 850; }
.docs-workflow ul { margin: .75rem 0 0; padding-left: 1.1rem; color: var(--erp-text); line-height: 1.5; }
.docs-flowline { display: flex; align-items: center; flex-wrap: wrap; gap: .45rem; }
.docs-flowline span { position: relative; display: inline-flex; align-items: center; min-height: 30px; padding: .28rem .5rem; border-radius: .35rem; color: var(--erp-text); border: 1px solid var(--erp-border); background: var(--erp-panel); font-weight: 800; font-size: .85rem; }
.docs-flowline span:not(:last-child)::after { content: "→"; margin-left: .45rem; color: var(--erp-primary); font-weight: 900; }
.docs-reference-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.docs-reference-table th, .docs-reference-table td { padding: .65rem; border: 1px solid var(--erp-border); vertical-align: top; }
.docs-reference-table th { color: var(--erp-text); background: color-mix(in srgb, var(--erp-primary) 12%, var(--erp-panel)); font-size: .78rem; font-weight: 850; text-transform: uppercase; letter-spacing: .04em; }
.docs-reference-table td { color: var(--erp-text); }
.docs-pill { display: inline-flex; align-items: center; min-height: 26px; padding: .15rem .45rem; border: 1px solid var(--erp-border); border-radius: 999px; color: var(--erp-muted); background: var(--erp-panel); font-weight: 750; }
.docs-document-grid, .docs-alert-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; }
.docs-document-card, .docs-alert { padding: .85rem; }
.docs-document-card i { width: 36px; height: 36px; display: grid; place-items: center; margin-bottom: .55rem; color: #fff; background: var(--erp-primary); border-radius: .4rem; }
.docs-document-card small { display: block; margin-top: .45rem; color: var(--erp-text); line-height: 1.4; }
.docs-alert { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: .55rem; align-items: start; }
.docs-alert i { width: 34px; height: 34px; display: grid; place-items: center; color: var(--erp-primary); border: 1px solid color-mix(in srgb, var(--erp-primary) 35%, var(--erp-border)); border-radius: .4rem; background: color-mix(in srgb, var(--erp-primary) 10%, var(--erp-panel)); }
.docs-faq-list { display: grid; gap: .55rem; }
.docs-faq { padding: .7rem .85rem; }
.docs-faq summary { cursor: pointer; color: var(--erp-text); font-weight: 850; }
.docs-faq p { margin: .55rem 0 0; color: var(--erp-muted); line-height: 1.5; }
.docs-glossary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .6rem; }
.docs-term { padding: .75rem; min-height: 116px; }
.docs-term p { font-size: .9rem; }
.docs-filtered-out { display: none !important; }
.docs-empty { display: none; margin: 0; padding: 1rem; text-align: center; color: var(--erp-muted); background: var(--erp-panel); border: 1px dashed var(--erp-border); border-radius: .5rem; }
.docs-empty.show { display: block; }
.docs-help-center { max-width: 1360px; margin: 0 auto; }
.docs-cover { background: var(--erp-panel); border-radius: .45rem; }
.docs-cover h2 { font-size: 1.65rem; }
.docs-cover .eyebrow { color: var(--erp-primary); }
.docs-search-panel { align-self: stretch; padding: .8rem; border: 1px solid var(--erp-border); border-radius: .45rem; background: var(--erp-bg); }
.docs-layout { grid-template-columns: 220px minmax(0, 1fr); }
.docs-sidebar a.active { color: #fff; background: var(--erp-primary); }
.docs-section { padding: .95rem; }
.docs-section-head h3 { font-size: 1.05rem; }
.docs-stepper { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.docs-link-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.docs-step, .docs-link-card, .docs-workflow, .docs-document-card, .docs-alert, .docs-faq, .docs-term { background: var(--erp-panel); }
.docs-link-card, .docs-alert, .docs-document-card { min-height: 0; }
.docs-link-card i, .docs-document-card i { background: #0f4f65; }
.docs-document-grid, .docs-alert-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.docs-glossary { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.upload-preview { display: grid; gap: .35rem; margin-top: .4rem; }
.asset-remove-check { display: inline-flex; align-items: center; gap: .35rem; width: max-content; margin: 0; color: var(--erp-muted); font-size: .82rem; font-weight: 700; }

/* ─── Login ─── */
.login-page { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(circle at top left, rgba(23,107,135,.18), transparent 30rem), var(--erp-bg); }
.login-shell { width: min(420px, calc(100vw - 2rem)); }
.login-panel { padding: 1.25rem; background: var(--erp-panel); border: 1px solid var(--erp-border); border-radius: .6rem; box-shadow: var(--erp-shadow); }
.brand-mark { width: 58px; height: 58px; display: grid; place-items: center; border-radius: .5rem; background: var(--erp-primary); color: #fff; font-weight: 800; margin-bottom: .75rem; }
.login-panel h1 { font-size: 1.55rem; margin: 0 0 .25rem; }
.login-panel p { color: var(--erp-muted); }
.stack-form { display: grid; gap: .85rem; }

/* ─── Responsive ─── */
@media (max-width: 1100px) {
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split-grid, .data-form, .quick-create-grid { grid-template-columns: 1fr; }
  .docs-cover, .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; }
  .docs-stepper, .docs-link-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .docs-glossary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-2, .span-3 { grid-column: 1; }
}
@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  body.sidebar-open .sidebar { transform: translateX(0); }
  .erp-main { margin-left: 0; }
  .overlay { display: none; }
  body.sidebar-overlay .overlay { display: block; }
  .topbar { align-items: center; }
}
@media (max-width: 640px) {
  .content { padding: .75rem; }
  .topbar { padding: .5rem .75rem; }
  .topbar h1 { font-size: 1.05rem; }
  .topbar-actions .btn span, .topbar-actions .btn:not(:last-child) { display: none; }
  .topnav { padding: 0 .5rem; }
  .tn-link { padding: .35rem .6rem; font-size: .6rem; }
  .tn-link i { font-size: 1.1rem; }
  .metric-grid { grid-template-columns: 1fr; }
  .summary-row { grid-template-columns: 1fr; }
  .document-actions { justify-content: flex-start; }
  .docs-cover, .docs-section { padding: .85rem; }
  .docs-stepper, .docs-link-grid, .docs-document-grid, .docs-alert-grid, .docs-glossary { grid-template-columns: 1fr; }
  .docs-searchbox { grid-template-columns: 34px minmax(0, 1fr) 34px; }
  .docs-flowline span { width: 100%; }
}