/* 3D Systems Ukraine — brand system (carbon / system blue / signal cyan).
   Ported from the 2026 brandbook onto the restored site. */
:root {
  --carbon: #101820;
  --ink: #151d23;
  --panel: #17242c;
  --blue: #00a6d6;
  --blue-dim: #0b7fa6;
  --cyan: #67e8f9;
  --alloy: #b7c2c8;
  --lab: #f3f7f8;
  --white: #ffffff;
  --muted: #8998a0;
  --line: rgba(255, 255, 255, 0.14);
  --line-soft: rgba(255, 255, 255, 0.08);
  --max: 1200px;
  --radius: 4px;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--carbon);
  color: var(--lab);
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { line-height: 1.05; font-weight: 700; letter-spacing: -0.03em; color: var(--white); }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin: 0 0 .4em; }
h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); margin: 1.8em 0 .5em; }
h3 { font-size: 1.2rem; margin: 1.4em 0 .4em; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 12px; top: 12px; background: var(--cyan); color: var(--carbon); padding: 8px 12px; z-index: 100; border-radius: 4px; }

/* ---- Brand glyph (3-blade additive mark) ---- */
.brand { display: flex; align-items: center; gap: 13px; color: var(--white); }
.brand-glyph {
  width: 34px; height: 34px; position: relative;
  display: inline-grid; place-items: center;
  transform: rotate(30deg); flex: 0 0 auto;
}
.brand-glyph i {
  position: absolute; width: 20px; height: 10px;
  border-radius: 2px; transform-origin: 3px 5px;
}
.brand-glyph i:nth-child(1) { background: var(--blue); transform: rotate(0deg) translateX(6px); }
.brand-glyph i:nth-child(2) { background: var(--cyan); transform: rotate(120deg) translateX(6px); }
.brand-glyph i:nth-child(3) { background: #62737c; transform: rotate(240deg) translateX(6px); }
.wordmark { display: flex; flex-direction: column; line-height: 1; }
.wordmark strong { font-size: 18px; letter-spacing: -.02em; color: var(--white); }
.wordmark small { margin-top: 5px; font-size: 7.5px; letter-spacing: .16em; color: var(--alloy); text-transform: uppercase; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(16, 24, 32, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 22px; min-height: 70px; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.site-nav { margin-left: auto; }
.nav-groups { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.nav-group { position: relative; }
.nav-group-label, .nav-link {
  position: relative; display: inline-flex; align-items: center; white-space: nowrap;
  background: none; border: 0; cursor: pointer; text-decoration: none;
  color: var(--alloy); font-family: inherit; font-size: 12px; font-weight: 400;
  text-transform: uppercase; letter-spacing: .07em;
  padding: 24px 13px; border-radius: 0;
}
.nav-group-label::after {
  content: "▾"; margin-left: 6px; font-size: 9px; opacity: .55;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-group:hover .nav-group-label::after { transform: rotate(180deg); opacity: 1; }
/* cyan accent bar under the active/hovered item */
.nav-group-label::before, .nav-link::before {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 16px; height: 2px;
  background: var(--cyan); transform: scaleX(0); transform-origin: left; transition: transform .22s ease;
}
.nav-group:hover .nav-group-label, .nav-group-label:focus,
.nav-link:hover, .nav-link.is-current { color: var(--cyan); }
.nav-group:hover .nav-group-label::before,
.nav-link:hover::before, .nav-link.is-current::before { transform: scaleX(1); }

.nav-sub {
  position: absolute; top: 100%; left: 0; min-width: 260px;
  background: var(--ink); border: 1px solid var(--line); border-top: 2px solid var(--cyan);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .6);
  list-style: none; margin: 0; padding: 8px; display: none;
}
/* invisible hover bridge so the menu doesn't close across the gap */
.nav-sub::before { content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.nav-group:hover .nav-sub, .nav-group:focus-within .nav-sub { display: block; }
.nav-sub a { display: block; padding: 9px 12px; border-radius: 3px; color: var(--alloy); font-size: .9rem; transition: padding-left .18s ease, background .18s ease, color .18s ease; }
.nav-sub a:hover { background: var(--panel); color: var(--cyan); text-decoration: none; padding-left: 16px; }
.nav-sub [aria-current="page"] a { color: var(--cyan); }
.nav-sub [aria-current="page"] a::before { content: "› "; color: var(--blue); }
.header-phone { font-weight: 700; color: var(--white); white-space: nowrap; font-size: .95rem; }
.header-phone:hover { color: var(--cyan); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.5rem; cursor: pointer; color: var(--white); }

/* ---- Breadcrumbs ---- */
.breadcrumbs { padding: 0; margin-bottom: 22px; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; color: var(--muted); font: 11px/1.6 ui-monospace, Menlo, monospace; text-transform: uppercase; letter-spacing: .06em; }
.breadcrumbs li { max-width: 60ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.breadcrumbs li + li::before { content: "/"; margin-right: 8px; color: var(--blue); }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--cyan); }

/* ---- Internal page hero ---- */
.page-hero {
  position: relative; overflow: hidden;
  padding: 56px 0 40px; margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 88% 0%, rgba(0,166,214,.16), transparent 42%),
    linear-gradient(180deg, #131f27 0%, var(--carbon) 100%);
}
.page-hero-grid {
  position: absolute; inset: 0; opacity: .1; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px);
  background-size: 58px 58px; mask-image: linear-gradient(90deg, transparent, black 70%);
}
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero .eyebrow { margin: 0 0 14px; color: var(--cyan); font-size: 11px; text-transform: uppercase; letter-spacing: .16em; }
.page-hero h1 { margin: 0; max-width: 20ch; }

/* ---- Content page ---- */
.page { max-width: 820px; margin: 40px 0 90px; }
.page-head { padding: 14px 0 14px; margin-bottom: 26px; border-bottom: 3px solid var(--blue); display: inline-block; }
.prose { color: var(--alloy); font-size: 1.02rem; }
.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.1em; }
.prose strong, .prose b { color: var(--white); }
.prose h2 { color: var(--white); }
.prose h2::before { content: ""; display: inline-block; width: 22px; height: 2px; background: var(--blue); vertical-align: middle; margin-right: 12px; }
.prose h3 { color: var(--cyan); }
.prose a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { margin: 0 0 1.1em; padding-left: 1.3em; }
.prose li { margin: .3em 0; }
.prose li::marker { color: var(--blue); }
.prose figure { margin: 1.6em 0; }
.prose figure img { border-radius: var(--radius); border: 1px solid var(--line); }
.prose .video video, .prose .video iframe { width: 100%; aspect-ratio: 16/9; border: 0; border-radius: var(--radius); background: #000; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .95rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 13px; text-align: left; }
.prose th { background: var(--panel); color: var(--white); }
.prose blockquote { border-left: 3px solid var(--cyan); margin: 1.4em 0; padding: .2em 0 .2em 1.1em; color: var(--white); font-size: 1.1rem; }

/* maxseo content blocks */
.lead-answer { font-size: 1.22rem; line-height: 1.5; color: var(--lab); margin: 0 0 1.6em; }
.lead-answer strong { color: var(--cyan); }
.quick-facts { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--cyan); border-radius: var(--radius); padding: 22px 26px; margin: 0 0 2em; }
.quick-facts h2 { margin: 0 0 .6em; font-size: 1.1rem; }
.quick-facts h2::before { display: none; }
.quick-facts ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.quick-facts li { padding-left: 20px; position: relative; color: var(--alloy); }
.quick-facts li::before { content: "▸"; position: absolute; left: 0; color: var(--blue); }
.quick-facts b { color: var(--white); }
.cat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; margin: 1.4em 0 2em; }
.cat-cards section { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 0 16px; overflow: hidden; }
.cat-cards .img-ph { min-height: 130px; border: 0; border-bottom: 1px solid var(--line); margin-bottom: 14px; border-radius: 0; }
.cat-cards h3 { margin: 0 16px 8px; font-size: 1.1rem; }
.cat-cards h3 a { color: var(--white); }
.cat-cards h3 a:hover { color: var(--cyan); }
.cat-cards p { margin: 0 16px; color: var(--alloy); font-size: .92rem; }
.faq { margin: 1em 0 2em; display: grid; gap: 8px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 18px; }
.faq summary { cursor: pointer; padding: 15px 0; font-weight: 600; color: var(--white); list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 13px; color: var(--cyan); font-size: 1.3rem; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq details p { margin: 14px 0; color: var(--alloy); }

/* Placeholder image (originals lost — see RESTORE.md) */
.img-ph {
  display: flex; align-items: center; justify-content: center; min-height: 140px;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,.03), rgba(255,255,255,.03) 12px, transparent 12px, transparent 24px);
  border: 1px dashed rgba(103, 232, 249, .28); border-radius: var(--radius);
  color: var(--muted); font-size: .78rem; text-align: center; padding: 16px;
}
.img-ph::before { content: "◈ "; color: var(--blue); opacity: .7; margin-right: 4px; }

/* Stats & card grids */
.stat { display: inline-flex; flex-direction: column; gap: 2px; margin: 0 30px 20px 0; }
.stat-num { font-size: 2.4rem; font-weight: 800; color: var(--cyan); line-height: 1; letter-spacing: -.04em; }
.stat-label { color: var(--muted); font-size: .88rem; max-width: 220px; }
.card-grid { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; padding: 0; margin: 1.4em 0; }
.card-grid li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 17px; }
.card-grid a { font-weight: 600; color: var(--cyan); }

/* Buttons */
.btn { display: inline-block; background: var(--cyan); color: var(--carbon); padding: 13px 24px; border-radius: 2px; font-weight: 700; text-decoration: none; border: 1px solid var(--cyan); letter-spacing: .01em; transition: .18s; }
.btn:hover { background: var(--white); border-color: var(--white); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--white); border-color: var(--line); }
.btn-ghost:hover { background: transparent; border-color: var(--cyan); color: var(--cyan); }
.cta { margin: 1.6em 0; }

/* ---- Hero (home) ---- */
.hero {
  position: relative; overflow: hidden; min-height: 92svh;
  display: flex; align-items: center; padding: 120px 0 90px; color: var(--white);
  background: radial-gradient(circle at 76% 50%, rgba(0,166,214,.22), transparent 30%),
    linear-gradient(135deg, #101820 0%, #182832 58%, #0d141a 100%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .14; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.15) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: linear-gradient(90deg, transparent, black 60%);
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
.hero .wrap { position: relative; z-index: 2; width: 100%; }
.hero .eyebrow { margin: 0 0 26px; color: var(--cyan); font-size: 11px; text-transform: uppercase; letter-spacing: .18em; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.4rem); letter-spacing: -.05em; line-height: .92; max-width: 16ch; }
.hero h1 span { color: var(--blue); }
.hero .lead { max-width: 52ch; margin: 30px 0 0; color: var(--alloy); font-size: 1.15rem; line-height: 1.5; }
.hero .cta { margin-top: 30px; }
.hero ul { margin: 28px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 10px 26px; color: var(--alloy); font-size: .9rem; }
.hero li { position: relative; padding-left: 18px; }
.hero li::before { content: "▸"; position: absolute; left: 0; color: var(--blue); }

/* Home sections */
.home-sections { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; padding: 70px 0 20px; }
.home-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; position: relative; overflow: hidden; transition: .2s; }
.home-card:hover { border-color: rgba(103, 232, 249, .5); }
.home-card h2 { margin: 0 0 .5em; font-size: 1.3rem; }
.home-card p { color: var(--alloy); font-size: .95rem; }
.home-card a { font-weight: 600; color: var(--cyan); }
.home-quote { max-width: 760px; margin: 20px auto 90px; font-size: 1.3rem; line-height: 1.4; color: var(--white); border-left: 3px solid var(--blue); padding-left: 26px; }
.home-quote cite { display: block; margin-top: 14px; font-size: .95rem; font-style: normal; color: var(--muted); }

/* ---- Blog ---- */
.post-list { list-style: none; padding: 0; margin: 26px 0; display: grid; gap: 16px; }
.post-list li { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; background: var(--panel); }
.post-list h2 { margin: 0 0 .3em; font-size: 1.3rem; }
.post-list h2 a { color: var(--white); }
.post-list h2 a:hover { color: var(--cyan); }
.post-list p { color: var(--alloy); }
.post-meta { color: var(--blue); font: 11px ui-monospace, Menlo, monospace; text-transform: uppercase; letter-spacing: .08em; }
article.post { max-width: 800px; margin: 0 auto; padding: 8px 24px 80px; }

/* ---- Footer ---- */
.site-footer { background: #0b1116; border-top: 1px solid var(--line); margin-top: 60px; padding: 56px 0 36px; }
.footer-cta { text-align: center; padding-bottom: 40px; border-bottom: 1px solid var(--line); margin-bottom: 40px; }
.footer-cta h2 { margin-top: 0; }
.footer-cta p { color: var(--alloy); }
.footer-contacts { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.footer-brand { margin-bottom: 30px; }
.footer-nav { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 26px; }
.footer-col h3 { font: 10px ui-monospace, Menlo, monospace; text-transform: uppercase; letter-spacing: .1em; color: var(--cyan); margin: 0 0 12px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin: 7px 0; }
.footer-col a { color: var(--alloy); font-size: .9rem; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font: 10px ui-monospace, Menlo, monospace; text-transform: uppercase; letter-spacing: .08em; }
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--cyan); }

@media (max-width: 980px) {
  .nav-toggle { display: block; margin-left: auto; order: 3; }
  .header-phone { order: 2; font-size: .85rem; }
  .site-nav { order: 4; flex-basis: 100%; margin-left: 0; display: none; max-height: 70svh; overflow-y: auto; }
  .site-nav.open { display: block; padding-bottom: 14px; }
  .nav-groups { flex-direction: column; gap: 0; }
  .nav-group-label { width: 100%; text-align: left; font-size: 12px; padding: 12px 4px; }
  .nav-sub { position: static; display: block; box-shadow: none; border: 0; border-left: 2px solid var(--line); margin: 0 0 8px 10px; padding: 0 0 0 6px; }
  .hero-canvas { opacity: .7; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}