/* Workplace Productivity Hub — design system */
:root {
  --navy: #0b2545;
  --navy-2: #13315c;
  --blue: #1f5fbf;
  --blue-dark: #174a96;
  --teal: #0f766e;
  --teal-soft: #e6f4f2;
  --ink: #1b2430;
  --muted: #4a5668;
  --line: #d9e0ea;
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --focus: #ffb703;
  --radius: 10px;
  --max: 1160px;
  --read: 720px;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--bg); line-height: 1.65; font-size: 1.0625rem; }
img, svg { max-width: 100%; height: auto; }
a { color: var(--blue-dark); text-underline-offset: 3px; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--blue-dark); outline-offset: 3px; border-radius: 3px; }
.hero :focus-visible, .site-footer :focus-visible, .btn:focus-visible, #back-to-top:focus-visible { outline-color: var(--focus); box-shadow: 0 0 0 2px var(--navy); }
[id] { scroll-margin-top: 8rem; }
h1, h2, h3, h4 { font-family: var(--serif); color: var(--navy); line-height: 1.25; margin: 2rem 0 .75rem; }
h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin-top: 0; }
h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1.1rem; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: .75rem 1rem; z-index: 1000; }
.skip-link:focus { left: 0; color: #fff; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--navy); font-family: var(--serif); font-weight: 700; font-size: 1.15rem; line-height: 1.1; }
.brand img { flex: none; }
.brand small { display: block; font-family: var(--sans); font-weight: 500; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--teal); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: .55rem .8rem; font: inherit; font-weight: 600; color: var(--navy); cursor: pointer; }
.primary-nav ul { list-style: none; display: flex; gap: .25rem; margin: 0; padding: 0; align-items: center; }
.primary-nav a { display: block; padding: .5rem .75rem; text-decoration: none; color: var(--ink); font-weight: 600; font-size: .95rem; border-radius: 6px; }
.primary-nav a:hover { background: var(--bg-alt); color: var(--navy); }
.primary-nav a[aria-current="page"] { color: var(--blue-dark); box-shadow: inset 0 -3px 0 var(--teal); border-radius: 0; }
.has-sub { position: relative; }
.has-sub.disclosure-ready { display: flex; align-items: center; }
.topics-toggle { background: none; border: 1px solid var(--line); border-radius: 6px; color: var(--navy); min-width: 32px; min-height: 36px; font: inherit; cursor: pointer; }
.primary-nav .sub-menu { display: none; position: absolute; top: 100%; left: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(11,37,69,.12); min-width: 250px; padding: .5rem !important; flex-direction: column; align-items: stretch !important; }
.primary-nav .has-sub:not(.disclosure-ready):hover > .sub-menu, .primary-nav .has-sub:not(.disclosure-ready):focus-within > .sub-menu, .primary-nav .disclosure-ready > .sub-menu:not([hidden]) { display: flex; }
.sub-menu a { font-weight: 500; }

@media (max-width: 900px) {
  .header-inner { flex-wrap: wrap; padding-top: .75rem; padding-bottom: .75rem; }
  .header-inner:has(.nav-ready) { flex-wrap: nowrap; }
  .header-inner:has(.nav-ready) .brand { flex: 1; min-width: 0; }
  .header-inner:has(.nav-ready) .nav-toggle { flex-shrink: 0; }
  .nav-toggle:not([hidden]) { display: inline-block; }
  .primary-nav { width: 100%; }
  .primary-nav.nav-ready { display: none; position: absolute; left: 0; right: 0; top: 100%; background: #fff; border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1rem; max-height: calc(100dvh - 80px); overflow-y: auto; }
  .primary-nav.nav-ready.open { display: block; }
  .site-header:has(.primary-nav:not(.nav-ready)) { position: static; }
  .primary-nav ul { flex-direction: column; align-items: stretch; }
  .has-sub.disclosure-ready { flex-wrap: wrap; }
  .has-sub.disclosure-ready > a { flex: 1; }
  .primary-nav .sub-menu { display: flex; position: static; box-shadow: none; border: 0; padding: 0 0 0 1rem !important; }
  .primary-nav .disclosure-ready > .sub-menu { width: 100%; }
}
@media (max-width: 620px) { .brand { font-size: 1rem; } .brand small { font-size: .6rem; letter-spacing: .05em; } }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 60%, #17496b 100%); color: #fff; padding: 4.5rem 0 4rem; }
.hero h1 { color: #fff; max-width: 18ch; }
.hero p { max-width: 62ch; font-size: 1.15rem; color: #dbe6f5; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 700; color: var(--teal); margin-bottom: .6rem; display: block; }
.hero .eyebrow { color: #7fdad2; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; align-items: center; }
.hero-panel { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); border-radius: 14px; padding: 1.5rem; }
.hero-panel h2 { color: #fff; font-size: 1.1rem; margin-top: 0; }
.hero-panel ul { margin: 0; padding-left: 1.1rem; color: #dbe6f5; }
.hero-panel a { color: #fff; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; gap: 1.5rem; } .hero { padding: 3rem 0; } }
.btn { display: inline-block; background: var(--teal); color: #fff; padding: .8rem 1.4rem; border-radius: 8px; font-weight: 700; text-decoration: none; border: 2px solid var(--teal); cursor: pointer; font-size: 1rem; font-family: inherit; }
.btn:hover { background: #0b5e57; border-color: #0b5e57; color: #fff; }
.btn-outline { background: transparent; border-color: #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--navy); border-color: #fff; }
.btn-row { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.5rem; }

/* Sections */
.section { padding: 3.5rem 0; }
.section.alt { background: var(--bg-alt); }
.section-head { max-width: 680px; margin-bottom: 2rem; }
.section-head h2 { margin-top: 0; }
.section-head p { color: var(--muted); }
.grid { display: grid; gap: 1.5rem; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: 0 10px 28px rgba(11,37,69,.10); transform: translateY(-2px); }
.card h3 { margin: .25rem 0 .5rem; font-size: 1.2rem; }
.card h3 a { text-decoration: none; color: var(--navy); }
.card h3 a:hover { text-decoration: underline; }
.card p { color: var(--muted); font-size: .98rem; flex: 1; }
.card .meta { font-size: .85rem; color: var(--muted); }
.tag { display: inline-block; background: var(--teal-soft); color: #0b5e57; font-size: .75rem; font-weight: 700; padding: .2rem .6rem; border-radius: 999px; text-transform: uppercase; letter-spacing: .05em; text-decoration: none; align-self: flex-start; }
a.tag:hover { background: #cfeae6; color: #0b5e57; }
.topic-card { border-top: 4px solid var(--teal); }
.topic-card h3 { margin-top: 0; }
.more-link { font-weight: 700; text-decoration: none; }
.more-link::after { content: " \2192"; }

/* Page header */
.page-header { background: var(--bg-alt); border-bottom: 1px solid var(--line); padding: 2.5rem 0 2rem; }
.page-header p.lead { font-size: 1.15rem; color: var(--muted); max-width: 70ch; margin-bottom: 0; }
.breadcrumbs { font-size: .88rem; margin-bottom: 1rem; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; }
.breadcrumbs li + li::before { content: "/"; color: var(--muted); margin-right: .4rem; }
.breadcrumbs a { color: var(--blue-dark); }

/* Prose */
.prose { max-width: var(--read); }
.prose pre { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 8px; padding: 1rem; font-size: .9rem; }
.prose h2 { margin-top: 2.5rem; }
.prose ul, .prose ol { padding-left: 1.4rem; margin: 0 0 1.2rem; }
.prose li { margin-bottom: .45rem; }
.prose blockquote { border-left: 4px solid var(--teal); margin: 1.5rem 0; padding: .5rem 1.25rem; background: var(--teal-soft); border-radius: 0 8px 8px 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 1.5rem 0; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: .6rem .8rem; text-align: left; vertical-align: top; }
.prose th { background: var(--bg-alt); color: var(--navy); }
.callout { background: var(--bg-alt); border: 1px solid var(--line); border-left: 4px solid var(--blue); border-radius: 8px; padding: 1rem 1.25rem; margin: 1.5rem 0; }
.callout strong:first-child { color: var(--navy); }
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin: 1.5rem 0; }
.pros-cons > div { border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.25rem; background: #fff; }
.pros-cons h3 { margin-top: 0; font-size: 1.05rem; }
.pros-cons ul { margin: 0; padding-left: 1.2rem; }
@media (max-width: 620px) { .pros-cons { grid-template-columns: 1fr; } }

/* Article layout */
.article-layout { display: grid; grid-template-columns: minmax(0, var(--read)) 300px; gap: 3rem; padding-top: 2.5rem; padding-bottom: 3.5rem; justify-content: space-between; }
.prose, .sidebar { min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 1020px) { .article-layout { grid-template-columns: minmax(0, 1fr); } }
.article-meta { color: var(--muted); font-size: .92rem; display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; }
.sidebar .box { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; margin-bottom: 1.5rem; background: #fff; }
.sidebar h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li { margin-bottom: .6rem; font-size: .96rem; }
.toc ol { padding-left: 1.2rem; margin: 0; font-size: .95rem; }
.toc li { margin-bottom: .35rem; }
.disclosure { font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1rem; }

/* Search & filter */
.search-bar { display: flex; gap: .75rem; flex-wrap: wrap; align-items: end; margin-bottom: 1.5rem; }
.search-bar label { font-weight: 700; display: block; margin-bottom: .3rem; color: var(--navy); font-size: .95rem; }
.search-bar input[type=search] { width: 100%; min-width: 0; padding: .75rem 1rem; border: 2px solid #8a9ab0; border-radius: 8px; font: inherit; }
.search-bar input[type=search]:focus { border-color: var(--blue); }
.search-field { flex: 1 1 320px; min-width: 0; }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.filter-btn { background: #fff; border: 1px solid #8a9ab0; color: var(--navy); padding: .45rem .95rem; border-radius: 999px; font: inherit; font-size: .92rem; font-weight: 600; cursor: pointer; }
.filter-btn:hover { background: var(--bg-alt); }
.filter-btn[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.result-count { color: var(--muted); font-size: .95rem; margin-bottom: 1rem; }
.no-results { padding: 2rem; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; color: var(--muted); }
[hidden] { display: none !important; }

/* Footer */
.site-footer { background: var(--navy); color: #cfdcee; padding: 3rem 0 1.5rem; margin-top: 0; font-size: .95rem; }
.site-footer h2 { color: #fff; font-size: 1rem; margin: 0 0 .75rem; font-family: var(--sans); text-transform: uppercase; letter-spacing: .08em; }
.site-footer a { color: #e6eefb; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .45rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-note { border-top: 1px solid rgba(255,255,255,.18); margin-top: 2rem; padding-top: 1.25rem; font-size: .85rem; color: #b5c5dc; }
address { font-style: normal; }

/* Back to top */
#back-to-top { position: fixed; right: 1.25rem; bottom: 1.25rem; background: var(--navy); color: #fff; border: 2px solid #fff; border-radius: 50%; width: 3rem; height: 3rem; font-size: 1.25rem; cursor: pointer; box-shadow: 0 6px 16px rgba(0,0,0,.25); z-index: 90; }
#back-to-top:hover { background: var(--blue); }

/* Utilities */
.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: 2rem; }
.mt-15 { margin-top: 1.5rem; }
.flush { margin: 0; }
.on-dark { color: #fff !important; }
.small-print { font-size: .95rem; margin: 1rem 0 .5rem; }
.hero-panel .search-bar label { color: #fff; }

/* Notice */
.notice { background: #fff8e1; border: 1px solid #f0d58a; border-radius: 8px; padding: 1rem 1.25rem; margin: 1.5rem 0; color: #5c4400; }

@media print { .site-header, .site-footer, #back-to-top, .sidebar { display: none; } }