:root { --page: #f5f6f7; --ink: var(--valco-ink); --muted: var(--neutral-600); --line: var(--neutral-300); --max: 1080px; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--page); color: var(--ink); font-family: var(--font-sans); font-size: 18px; line-height: 1.65; }
a { color: inherit; text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { color: var(--valco-black); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 20; padding: 12px 20px; background: var(--ink); color: white; }
.skip-link:focus { top: 16px; color: white; }
.site-header { padding-block: 30px 48px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 46px; }
.brand { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; }
.brand img { width: 74px; height: 74px; object-fit: contain; mix-blend-mode: multiply; }
.brand span { font-size: 12px; font-weight: 600; letter-spacing: .12em; color: var(--muted); }
.site-links { display: flex; flex-wrap: wrap; gap: 22px; font-size: 15px; font-weight: 700; }
.hero { max-width: 950px; }
.eyebrow { margin: 0 0 16px; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0; font-size: clamp(42px, 7.3vw, 94px); font-weight: 800; line-height: 1.02; letter-spacing: -.035em; overflow-wrap: break-word; }
.intro { max-width: 710px; margin: 26px 0 0; font-size: clamp(18px, 2vw, 22px); line-height: 1.6; color: var(--fg-2); }
.language-row { position: sticky; top: 0; z-index: 5; padding-block: 12px; background: var(--page); border-block: 1px solid var(--line); }
.language-switcher { display: flex; align-items: center; gap: 10px; }
.language-switcher a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 8px 19px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--valco-white); font-size: 15px; font-weight: 700; text-decoration: none; }
.language-switcher a:hover { border-color: var(--ink); }
.language-switcher a[aria-current] { background: var(--ink); color: var(--valco-white); border-color: var(--ink); }
.language-note { margin-left: auto; font-size: 13px; color: var(--muted); }
.content-shell { display: grid; grid-template-columns: minmax(0, 1fr) 255px; align-items: start; gap: 68px; padding-block: 54px 80px; }
.content-shell:focus { outline: none; }
.article-heading h2 { font-size: clamp(30px, 3.6vw, 45px); font-weight: 800; line-height: 1.12; letter-spacing: -.025em; margin: 0 0 14px; }
.article-heading .eyebrow { margin-bottom: 12px; }
.updated { font-size: 14px; color: var(--muted); margin: 0 0 32px; }
.section { padding-block: 30px; border-top: 1px solid var(--line); scroll-margin-top: 12px; }
.section-number { display: block; font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--muted); margin-bottom: 6px; }
h3 { font-size: 25px; line-height: 1.2; font-weight: 700; letter-spacing: -.015em; margin: 0 0 18px; }
h4 { font-size: 18px; line-height: 1.35; margin: 0 0 10px; }
h5 { font-size: 16px; margin: 20px 0 8px; }
p { margin: 0 0 16px; font-size: inherit; line-height: inherit; color: inherit; }
.section > :last-child, .warning p:last-child, .collection p:last-child, .status-note p:last-child { margin-bottom: 0; }
.quick-list { margin: 0; padding-left: 23px; }
.quick-list li { margin-block: 9px; padding-left: 5px; }
.warning { margin-top: 24px; background: var(--valco-white); border-left: 4px solid var(--period-red); padding: 22px 24px; }
.warning h4 { color: var(--period-red); }
.collection { margin-top: 24px; border-left: 3px solid var(--ink); padding-left: 22px; }
.status-note { padding: 20px; margin-block: 24px; border: 1px solid var(--line); background: var(--valco-white); border-radius: var(--radius-md); font-size: 16px; }
.status-note p { margin: 8px 0 0; }
.product-group { margin-top: 28px; }
.product-group h3 { font-size: 16px; margin-bottom: 12px; }
.product { border-top: 1px solid var(--line); }
.product:last-child { border-bottom: 1px solid var(--line); }
summary { position: relative; cursor: pointer; list-style: none; min-height: 60px; display: flex; align-items: center; gap: 12px; padding: 16px 26px 16px 0; font-size: 17px; font-weight: 700; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 2px; font-size: 24px; font-weight: 400; }
details[open] > summary::after { content: '−'; }
summary:hover { color: var(--valco-black); }
.product-state { margin-left: auto; font-weight: 400; font-size: 12px; color: var(--muted); white-space: nowrap; }
.product-body { padding: 0 0 22px; font-size: 16px; }
.product-body > a { display: inline-block; padding-block: 6px; }
.specs { font-size: 15px; }
.specs div { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; border-bottom: 1px solid var(--line); padding-block: 10px; }
.specs dt { font-weight: 600; }
.specs dd { margin: 0; overflow-wrap: anywhere; }
.small { font-size: 14px; color: var(--muted); margin-top: 24px; }
.sources { font-size: 15px; color: var(--fg-2); }
.sources h3 { font-size: 20px; color: var(--ink); }
.sources ul { padding-left: 20px; margin-bottom: 0; }
.sources li { padding-block: 5px; }
.sidebar { align-self: stretch; }
.side-inner { position: sticky; top: 108px; padding-top: 22px; border-top: 4px solid var(--ink); }
.toc { display: grid; gap: 5px; }
.toc a { display: block; padding-block: 7px; font-size: 15px; text-decoration: none; color: var(--fg-2); }
.toc a:hover { text-decoration: underline; }
.side-contact { border-top: 1px solid var(--line); padding-top: 24px; margin-top: 24px; font-size: 15px; }
.side-contact h2 { font-size: 21px; margin: 0 0 12px; line-height: 1.2; }
.button { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 46px; background: var(--ink); color: var(--valco-white); padding: 11px 16px; border-radius: var(--radius-md); font-size: 14px; font-weight: 700; text-decoration: none; }
.button:hover { color: var(--valco-white); background: var(--valco-black); }
.email { display: inline-block; margin-top: 14px; }
.side-caption { font-size: 13px; color: var(--muted); margin-top: 28px; }
.site-footer { display: grid; grid-template-columns: 1fr auto; gap: 24px; border-top: 1px solid var(--line); padding-block: 30px; font-size: 13px; color: var(--muted); }
.site-footer strong { color: var(--ink); font-size: 16px; }
.site-footer p { margin: 4px 0; }
.site-footer nav { display: flex; flex-wrap: wrap; align-items: start; gap: 20px; font-weight: 600; }
.footer-line { grid-column: 1 / -1; }
.error-page { padding-block: 100px; }
.error-page h1 { margin-bottom: 32px; }
@media (max-width: 900px) { .content-shell { gap: 36px; grid-template-columns: minmax(0, 1fr) 220px; } }
@media (max-width: 760px) {
  body { font-size: 17px; }
  .container { width: calc(100% - 40px); }
  .content-shell { grid-template-columns: 1fr; padding-block: 36px 48px; gap: 20px; }
  .sidebar { border-top: 1px solid var(--line); padding-top: 16px; }
  .side-inner { position: static; border-top: 0; padding-top: 0; }
  .sidebar .eyebrow, .toc { display: none; }
  .side-contact { border: 0; padding: 0; margin: 0; }
  .side-contact .button { width: fit-content; min-width: 200px; }
  .site-header { padding-block: 22px 36px; }
  .topbar { margin-bottom: 32px; }
  .brand img { width: 58px; height: 58px; }
  .brand { gap: 8px; }
  .brand span { font-size: 10px; }
  .site-links { font-size: 13px; gap: 14px; }
  h1 { font-size: clamp(40px, 8.5vw, 64px); }
  .intro { font-size: 18px; margin-top: 22px; }
  .language-note { display: none; }
  .site-footer { grid-template-columns: 1fr; gap: 20px; }
  .section { padding-block: 28px; }
}
@media (max-width: 380px) { .brand span { display: none; } h1 { font-size: 38px; } .container { width: calc(100% - 32px); } .product-state { font-size: 11px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  html { scroll-padding-top: 0; }
  body { font-size: 11pt; color: black; background: white; }
  .container { width: 100%; }
  .site-header { padding: 0 0 20px; }
  .topbar, .language-row, .sidebar, .site-footer, .skip-link { display: none; }
  h1 { font-size: 32pt; }
  .intro { font-size: 13pt; }
  .content-shell { display: block; padding-block: 20px; }
  h3, h4 { break-after: avoid; }
  .warning, .status-note { break-inside: avoid; }
}