/* Company sites: one template, dressed by the decade the company was founded in (html.co-founded-*).
   The hue is the company's own (from the design tokens); the sector may tint it. */
.shell-co { --co: hsl(var(--hue), 32%, 30%); --co-soft: color-mix(in srgb, var(--co) 12%, var(--paper)); --panel: color-mix(in srgb, var(--paper) 40%, white); }
.shell-co main { max-width: 960px; }
.co-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .6rem 1.5rem; padding: .8rem 1.25rem; border-bottom: 1px solid var(--rule); }
.co-brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; font-family: var(--head-font); font-weight: var(--h-weight); font-size: 1.2rem; color: var(--co); }
.co-mark { width: 1rem; height: 1rem; background: var(--co); display: inline-block; clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%); }
.co-nav { display: flex; flex-wrap: wrap; gap: .2rem 1.1rem; font-size: .86rem; }
.co-nav a { text-decoration: none; color: var(--ink); }
.co-nav a:hover { color: var(--co); text-decoration: underline; }
.co-hero { padding: 2rem 0 1.4rem; margin: 0 0 var(--block); border-bottom: 1px solid var(--rule); }
.co-hero h1 { margin: 0 0 .3rem; font-size: 2.2rem; color: var(--co); }
.co-hero .tagline { margin: 0; color: var(--muted); max-width: none; }
.co-logo { display: block; width: 84px; height: 84px; margin-bottom: .8rem; background: #fff; border: 1px solid var(--rule); }
.co-site section { margin-bottom: var(--block); }
.co-site h2 { color: var(--co); border-bottom: 1px solid var(--rule); padding-bottom: .2rem; font-size: 1.25rem; }
.co-site h3 { font-size: .95rem; color: var(--muted); font-weight: 600; }
.co-site .founder b { font-weight: 600; }
.co-timeline { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--co); }
.co-timeline li { padding: .25rem 0 .25rem 1rem; max-width: var(--measure); }
.co-timeline .year { font-weight: 600; color: var(--co); margin-right: .5rem; font-variant-numeric: tabular-nums; }
.co-timeline .press { font-size: .8rem; color: var(--muted); }
.co-site address { line-height: 1.6; border: 1px solid var(--rule); background: var(--panel); padding: .8rem 1rem; display: inline-block; }
.co-site figure.chart { margin: var(--gap) 0; }
.co-footer { font-size: .84rem; color: var(--muted); text-align: center; padding: 1.2rem 1.25rem; border-top: 1px solid var(--rule); margin-top: var(--block); }
.co-footer p { margin: .2rem 0; }

/* 1804–1899: a letterhead. Centred, small capitals, double rules, the founder's name in the tagline. */
.co-founded-early, .co-founded-victorian { --co: hsl(var(--hue), 22%, 24%); }
.co-founded-early .co-header, .co-founded-victorian .co-header { flex-direction: column; justify-content: center; text-align: center; gap: .3rem; border-bottom: 0; padding-bottom: .2rem; }
.co-founded-early .co-brand, .co-founded-victorian .co-brand { font-variant: small-caps; letter-spacing: .1em; font-size: 1rem; color: var(--muted); }
.co-founded-early .co-mark, .co-founded-victorian .co-mark { display: none; }
.co-founded-early .co-nav, .co-founded-victorian .co-nav { justify-content: center; font-variant: small-caps; letter-spacing: .08em; font-size: .82rem; }
.co-founded-early .co-nav a + a::before, .co-founded-victorian .co-nav a + a::before { content: "·"; margin-right: 1.1rem; color: var(--rule); }
.co-founded-early .co-hero, .co-founded-victorian .co-hero { text-align: center; border-top: 4px double var(--co); border-bottom: 4px double var(--co); padding: 1.6rem 1rem 1.3rem; }
.co-founded-early .co-hero h1, .co-founded-victorian .co-hero h1 { font-variant: small-caps; letter-spacing: .1em; font-weight: 400; font-size: 2.3rem; color: var(--ink); }
.co-founded-early .co-hero .tagline, .co-founded-victorian .co-hero .tagline { font-style: italic; color: var(--ink); }
.co-founded-early .co-logo, .co-founded-victorian .co-logo { margin: 0 auto .8rem; border-radius: 50%; }
.co-founded-early .co-site h2, .co-founded-victorian .co-site h2 { font-variant: small-caps; letter-spacing: .08em; font-weight: 400; color: var(--ink); text-align: center; border-bottom: 0; }
.co-founded-early .co-site h2::after, .co-founded-victorian .co-site h2::after { content: ""; display: block; width: 4rem; border-top: 1px solid var(--ink); margin: .35rem auto 0; }
.co-founded-early .co-timeline, .co-founded-victorian .co-timeline { border-left: 0; }
.co-founded-early .co-timeline li, .co-founded-victorian .co-timeline li { padding-left: 0; border-bottom: 1px dotted var(--rule); padding: .35rem 0; }
.co-founded-early .co-timeline .year, .co-founded-victorian .co-timeline .year { font-variant: small-caps; font-weight: 400; color: var(--ink); }
.co-founded-early .co-site address, .co-founded-victorian .co-site address { border: 4px double var(--rule); }
.co-founded-early .co-footer, .co-founded-victorian .co-footer { font-variant: small-caps; letter-spacing: .04em; }

/* 1900–1945: the geometric decades. A band of colour, spaced small capitals, thin rules. */
.co-founded-interwar { --co: hsl(var(--hue), 40%, 28%); }
.co-founded-interwar .co-header { border-top: 8px solid var(--co); border-bottom: 1px solid var(--co); }
.co-founded-interwar .co-brand { font-variant: small-caps; letter-spacing: .14em; font-weight: 400; }
.co-founded-interwar .co-mark { clip-path: none; transform: rotate(45deg) scale(.8); }
.co-founded-interwar .co-nav a { font-variant: small-caps; letter-spacing: .1em; font-size: .84rem; }
.co-founded-interwar .co-hero { border-bottom: 1px solid var(--co); }
.co-founded-interwar .co-hero h1 { font-variant: small-caps; letter-spacing: .12em; font-weight: 400; }
.co-founded-interwar .co-site h2 { font-variant: small-caps; letter-spacing: .08em; font-weight: 400; border-bottom-color: var(--co); }
.co-founded-interwar .co-timeline { border-left: 1px solid var(--co); }

/* 1946–1979: the corporate mid-century. Bold lower-case wordmark, a stripe, a lot of air. */
.co-founded-midcentury { --co: hsl(var(--hue), 55%, 40%); }
.co-founded-midcentury .co-header { border-bottom: 6px solid var(--co); padding-bottom: .6rem; }
.co-founded-midcentury .co-brand { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 700; letter-spacing: -.02em; font-size: 1.35rem; }
.co-founded-midcentury .co-mark { clip-path: none; border-radius: 50%; }
.co-founded-midcentury .co-nav { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; }
.co-founded-midcentury .co-hero { border-bottom: 0; padding-top: 2.4rem; }
.co-founded-midcentury .co-hero h1 { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 300; font-size: 2.6rem; letter-spacing: -.02em; color: var(--ink); }
.co-founded-midcentury .co-hero .tagline::before { content: ""; display: block; width: 3rem; border-top: 4px solid var(--co); margin: .6rem 0 .8rem; }
.co-founded-midcentury .co-site h2 { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-weight: 700; border-bottom: 0; font-size: 1.15rem; }
.co-founded-midcentury .co-timeline { border-left: 4px solid var(--co); }
.co-founded-midcentury .co-timeline .year { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; }

/* 1980–1999: the first websites. Verdana, grey chrome, bordered buttons, blue links. */
.co-founded-late { --co: hsl(var(--hue), 60%, 32%); --paper: #ffffff; --panel: #f3f3f3; --rule: #bcbcbc; }
.co-founded-late body { font-family: Verdana, Geneva, Tahoma, sans-serif; font-size: .95rem; }
.co-founded-late .co-header { background: #e9e9e9; border-bottom: 1px solid #9a9a9a; border-top: 3px solid var(--co); padding: .6rem 1.25rem; }
.co-founded-late .co-brand { font-family: Verdana, Geneva, sans-serif; font-weight: 700; font-size: 1.05rem; }
.co-founded-late .co-mark { clip-path: none; transform: skewX(-12deg); }
.co-founded-late .co-nav { gap: .3rem; }
.co-founded-late .co-nav a { font-size: .78rem; border: 1px solid #8a8a8a; background: #f7f7f7; padding: .18rem .6rem; color: var(--co); }
.co-founded-late .co-nav a:hover { background: #fff; text-decoration: none; }
.co-founded-late main { padding-top: 1rem; }
.co-founded-late .co-hero { border: 1px solid #bcbcbc; border-top: 4px solid var(--co); background: #f7f7f7; padding: 1.2rem 1.4rem; }
.co-founded-late .co-hero h1 { font-family: Arial, Helvetica, sans-serif; font-weight: 700; font-size: 1.7rem; }
.co-founded-late .co-hero .tagline { color: var(--ink); font-size: .9rem; }
.co-founded-late .co-logo { float: right; margin: 0 0 .5rem 1rem; border: 1px solid #bcbcbc; }
.co-founded-late .co-site h2 { font-family: Arial, Helvetica, sans-serif; font-weight: 700; font-size: 1.1rem; border-bottom: 2px solid var(--co); }
.co-founded-late .co-site a { color: #0000cc; }
.co-founded-late .co-site a:visited { color: #551a8b; }
.co-founded-late .co-timeline { border-left: 0; }
.co-founded-late .co-timeline li { padding-left: 0; border-bottom: 1px solid #ddd; padding: .3rem 0; }
.co-founded-late .co-timeline .year { display: inline-block; min-width: 3.5rem; color: var(--ink); }
.co-founded-late .co-site address { border: 1px solid #bcbcbc; background: #f3f3f3; }
.co-founded-late .co-footer { background: #e9e9e9; border-top: 1px solid #9a9a9a; font-size: .74rem; }

/* 2000–: the current site. White, quiet, a thin large heading, a hairline of colour. */
.co-founded-modern { --co: hsl(var(--hue), 45%, 32%); --paper: #ffffff; --panel: #fafafa; --rule: #e2e2e2; }
.co-founded-modern .co-header { border-bottom: 1px solid var(--rule); padding: 1rem 1.25rem; }
.co-founded-modern .co-brand { font-family: var(--ui); font-weight: 600; font-size: 1.05rem; color: var(--ink); }
.co-founded-modern .co-mark { clip-path: none; border-radius: 2px; }
.co-founded-modern .co-nav { font-family: var(--ui); font-size: .84rem; gap: .2rem 1.4rem; }
.co-founded-modern .co-nav a { color: var(--muted); }
.co-founded-modern .co-nav a:hover { color: var(--ink); text-decoration: none; }
.co-founded-modern .co-hero { padding: 3rem 0 2rem; border-bottom: 0; }
.co-founded-modern .co-hero h1 { font-family: var(--ui); font-weight: 300; font-size: 2.8rem; letter-spacing: -.02em; color: var(--ink); }
.co-founded-modern .co-hero .tagline { font-family: var(--ui); }
.co-founded-modern .co-hero .tagline::after { content: ""; display: block; width: 2.5rem; border-top: 2px solid var(--co); margin-top: 1rem; }
.co-founded-modern .co-site h2 { font-family: var(--ui); font-weight: 600; font-size: 1.05rem; color: var(--ink); border-bottom: 0; letter-spacing: .01em; }
.co-founded-modern .co-site h2::before { content: ""; display: block; width: 1.5rem; border-top: 2px solid var(--co); margin-bottom: .5rem; }
.co-founded-modern .co-timeline { border-left: 1px solid var(--rule); }
.co-founded-modern .co-timeline .year { font-family: var(--ui); font-weight: 600; color: var(--ink); }
.co-founded-modern .co-site address { border: 0; background: var(--panel); }
.co-founded-modern .co-footer { border-top-color: var(--rule); font-family: var(--ui); }

/* the sector may tint the house colour */
.sector-defence, .sector-iron, .sector-steel { --co: hsl(210, 8%, 32%); }
.sector-wine { --co: hsl(340, 40%, 30%); }
.sector-brewing { --co: hsl(32, 55%, 32%); }
.sector-banking, .sector-insurance { --co: hsl(150, 30%, 24%); }
.sector-software, .sector-telecom, .sector-electrics { --co: hsl(212, 60%, 36%); }
@media (max-width: 640px) {
  .co-header { padding: .7rem 16px; }
  .co-hero { padding: 1.4rem 0 1rem; }
  .co-hero h1, .co-founded-modern .co-hero h1, .co-founded-midcentury .co-hero h1, .co-founded-early .co-hero h1, .co-founded-victorian .co-hero h1 { font-size: 1.7rem; }
  .co-founded-late .co-logo { float: none; margin: 0 0 .6rem; }
  .co-founded-early .co-nav a + a::before, .co-founded-victorian .co-nav a + a::before { margin-right: .6rem; }
  .co-founded-early .co-nav, .co-founded-victorian .co-nav { gap: .2rem .6rem; }
}

.co-cta { margin: .8rem 0; font-weight: 600; }
.co-cta a { text-decoration-thickness: 2px; }

/* ---------- write to us: the enquiry form and the company's reply ---------- */
.co-enquiry .co-hero h1 { margin-bottom: .2rem; }
.co-form { max-width: 640px; margin: 1rem 0 2rem; }
.co-form fieldset { border: 1px solid var(--rule); padding: .8rem 1rem; margin: 0 0 1rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .4rem 1rem; }
.co-form legend { font-weight: 700; padding: 0 .3rem; }
.co-form fieldset label { display: flex; gap: .5rem; align-items: center; cursor: pointer; }
.co-field { display: flex; flex-direction: column; gap: .3rem; font-weight: 600; margin: 0 0 1rem; }
.co-field input, .co-field textarea { font: inherit; font-weight: 400; padding: .55rem .65rem; border: 1px solid var(--rule); background: #fff; color: var(--ink); }
.co-btn { display: inline-block; font: inherit; font-weight: 700; background: var(--co, var(--accent)); color: #fff !important; border: 2px solid var(--co, var(--accent)); padding: .5rem 1.1rem; cursor: pointer; text-decoration: none !important; }
.co-btn.ghost { background: transparent; color: var(--co, var(--accent)) !important; }
.co-letter { background: #fff; border: 1px solid var(--rule); box-shadow: 0 3px 14px rgba(0,0,0,.07); padding: 1.6rem 2rem; max-width: 680px; margin: 1rem 0 1.5rem; font-family: Georgia, 'Times New Roman', serif; line-height: 1.6; }
.co-letter header { border-bottom: 2px solid var(--ink); padding-bottom: .5rem; margin-bottom: .6rem; }
.co-sig { margin-top: 1.2rem; }
.co-stamp { display: inline-block; border: 3px solid #b3261e; color: #b3261e; font: 800 1rem/1.2 system-ui, sans-serif; letter-spacing: .08em; padding: .3rem .7rem; transform: rotate(-4deg); margin: .4rem 0 1rem; }
.co-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.co-yours { margin: 1rem 0; max-width: 680px; } .co-yours summary { cursor: pointer; font-weight: 600; }
.co-yours-text { white-space: pre-wrap; background: rgba(0,0,0,.03); padding: .6rem .8rem; margin-top: .4rem; }
@media (max-width: 640px) { .co-letter { padding: 1rem; } }