/* UniLab Analytical Services — site styles.
   Layout: light utility bar + nav over a deep-blue hero, calm light body, dark theme follows the OS setting. */
:root {
  --bg: #f5f8fc;
  --surface: #ffffff;
  --fg: #0b1a33;
  --muted: #53627c;
  --line: #dbe4f0;
  --accent: #0a74c9;
  --accent-ink: #ffffff;
  --signal: #19c3e6;
  --chip: #e8f1fb;
  --hero-a: #061230;
  --hero-b: #0b2a5c;
  --hero-c: #0e5aa7;
  --hero-fg: #f3f8ff;
  --hero-muted: #a9bddb;
  --glass: rgba(255,255,255,.07);
  --glass-line: rgba(255,255,255,.16);
  --display: "Sora", "Segoe UI", system-ui, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #07101f; --surface: #0d1b33; --fg: #eaf2ff; --muted: #9db0cc; --line: #1b2f50;
    --accent: #3aa0ff; --accent-ink: #04101f; --chip: #12284a; color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 6px; }
.wrap { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 16px; }

/* utility bar + nav */
.util { background: var(--surface); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.util .wrap { display: flex; justify-content: space-between; gap: 8px 20px; padding-block: 8px; flex-wrap: wrap; }
.util .right { display: flex; gap: 20px; flex-wrap: wrap; }
.util a:hover { color: var(--accent); }
nav.main { background: var(--surface); position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--line); }
nav.main .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 12px; }
.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo .mark { width: 30px; height: 43px; background: url("/assets/img/logo.png") 0 0 / 109px auto no-repeat; flex: none; }
.logo b { font-family: var(--display); font-size: 22px; font-weight: 700; letter-spacing: -.02em; display: block; line-height: 1; }
.logo small { font-size: 10.5px; color: var(--muted); letter-spacing: .04em; display: block; margin-top: 4px; }
.links { display: flex; gap: 30px; font-weight: 500; font-size: 15px; align-items: center; }
.links > a, .links > .dd > a { padding-block: 8px; border-bottom: 2px solid transparent; display: inline-block; }
.links a:hover, .links a[aria-current="page"] { border-color: var(--accent); }
.dd { position: relative; }
.dd > a::after { content: ""; display: inline-block; width: 6px; height: 6px; border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor; transform: rotate(45deg) translateY(-2px); margin-left: 8px; }
.menu { position: absolute; top: 100%; left: -16px; min-width: 330px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 8px; box-shadow: 0 18px 40px rgba(6,18,48,.16); display: none; flex-direction: column; }
.dd:hover .menu, .dd:focus-within .menu { display: flex; }
.menu a { padding: 10px 14px; border-radius: 10px; font-size: 14.5px; }
.menu a:hover { background: var(--chip); }
.burger { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; width: 44px; height: 44px; color: var(--fg); cursor: pointer; }
.burger span, .burger span::before, .burger span::after { display: block; width: 18px; height: 2px; background: currentColor; margin: auto; position: relative; content: ""; }
.burger span::before { position: absolute; top: -6px; left: 0; }
.burger span::after { position: absolute; top: 6px; left: 0; }

.btn { display: inline-flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; font-size: 14px; padding: 13px 22px; border-radius: 999px; border: 1.5px solid transparent; transition: transform .15s, background .15s; white-space: nowrap; cursor: pointer; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--signal); color: #03162c; }
.btn.primary:hover { background: #4bd6f3; }
.btn.nav { background: var(--accent); color: var(--accent-ink); padding: 11px 20px; }
.btn.ghost { border-color: var(--glass-line); color: var(--hero-fg); background: var(--glass); }
.btn.ghost:hover { background: rgba(255,255,255,.14); }
.btn.solid { background: var(--accent); color: var(--accent-ink); }
.btn.outline { border-color: var(--line); color: var(--fg); background: var(--surface); }
.btn.outline:hover { border-color: var(--accent); }

/* hero */
.hero { background: radial-gradient(900px 500px at 85% 20%, var(--hero-c) 0%, transparent 60%), linear-gradient(135deg, var(--hero-a), var(--hero-b)); color: var(--hero-fg); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--glass) 1px, transparent 1px), linear-gradient(90deg, var(--glass) 1px, transparent 1px); background-size: 56px 56px; -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%); mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%); opacity: .6; pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; padding-block: 88px; }
.hero .eyebrow { color: var(--signal); display: flex; align-items: center; gap: 10px; }
.hero .eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 4px rgba(25,195,230,.2); }
h1 { font-family: var(--display); font-weight: 700; font-size: clamp(34px, 5.2vw, 62px); line-height: 1.05; letter-spacing: -.03em; margin: 20px 0 22px; text-wrap: balance; }
.hero p.lead { color: var(--hero-muted); font-size: 18px; max-width: 54ch; margin: 0 0 34px; }
.cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* inner-page hero */
.phero .wrap { grid-template-columns: minmax(0, 1fr); padding-block: 64px 68px; gap: 0; }
.phero h1 { font-size: clamp(30px, 4.2vw, 50px); margin: 16px 0 16px; max-width: 22ch; }
.phero p.lead { margin: 0; max-width: 62ch; }
.crumbs { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; color: var(--hero-muted); display: flex; gap: 10px; flex-wrap: wrap; }
.crumbs a:hover { color: var(--signal); }

/* chromatogram */
.panel { background: var(--glass); border: 1px solid var(--glass-line); border-radius: 28px; padding: 22px 22px 16px; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); min-width: 0; }
.panel header { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-family: var(--mono); font-size: 11.5px; color: var(--hero-muted); letter-spacing: .06em; margin-bottom: 8px; flex-wrap: wrap; }
.panel header b { color: var(--hero-fg); font-weight: 500; }
.live { display: inline-flex; align-items: center; gap: 7px; }
.live i { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; animation: pulse 2s infinite; }
.panel svg { width: 100%; height: auto; display: block; }
.panel text { font-family: var(--mono); font-size: 10.5px; fill: var(--hero-muted); }
.panel .pk { fill: var(--hero-fg); }
.trace { fill: none; stroke: url(#tg); stroke-width: 2.4; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 0; animation: draw 2.6s ease-out; }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes pulse { 50% { opacity: .35; } }
.panel footer { display: flex; justify-content: space-between; gap: 12px; font-family: var(--mono); font-size: 11px; color: var(--hero-muted); border-top: 1px solid var(--glass-line); padding-top: 12px; margin-top: 6px; flex-wrap: wrap; }

/* standards strip */
.standards { background: var(--surface); border-bottom: 1px solid var(--line); }
.standards .wrap { display: flex; align-items: center; gap: 20px 44px; padding-block: 26px; flex-wrap: wrap; }
.standards .eyebrow { color: var(--muted); }
.standards ul { list-style: none; display: flex; gap: 12px 40px; margin: 0; padding: 0; flex-wrap: wrap; font-family: var(--display); font-weight: 600; font-size: 17px; letter-spacing: -.01em; }

/* sections */
section.block { padding-block: 96px; }
section.block.tight { padding-block: 72px; }
.head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 56px; align-items: end; margin-bottom: 48px; }
h2 { font-family: var(--display); font-weight: 700; font-size: clamp(26px, 3.4vw, 42px); line-height: 1.12; letter-spacing: -.025em; margin: 14px 0 0; text-wrap: balance; }
h3 { font-family: var(--display); font-weight: 600; letter-spacing: -.015em; line-height: 1.25; }
.head .eyebrow { color: var(--accent); }
.head p { color: var(--muted); font-size: 17px; margin: 0; max-width: 56ch; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 28px; display: flex; flex-direction: column; gap: 14px; min-width: 0; transition: border-color .2s, transform .2s; }
a.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card .ic { width: 52px; height: 52px; border-radius: 14px; background: var(--chip); display: grid; place-items: center; color: var(--accent); }
.card .ic svg { width: 28px; height: 28px; }
.card h3 { font-size: 19px; margin: 6px 0 0; }
.card p { color: var(--muted); font-size: 15px; margin: 0; }
.card .more { margin-top: auto; padding-top: 10px; font-weight: 600; font-size: 14px; color: var(--accent); display: flex; align-items: center; gap: 8px; }
.card.cta-card { background: linear-gradient(135deg, var(--hero-a), var(--hero-c)); border-color: transparent; color: var(--hero-fg); justify-content: space-between; }
.card.cta-card p { color: var(--hero-muted); }
.card.cta-card h3 { font-size: 24px; }

/* facts */
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); overflow: hidden; }
.facts div { padding: 32px; display: grid; gap: 8px; align-content: start; min-width: 0; }
.facts div + div { border-left: 1px solid var(--line); }
.facts b { font-family: var(--display); font-size: 21px; letter-spacing: -.02em; line-height: 1.25; }
.facts span { color: var(--muted); font-size: 15px; }
.facts .eyebrow { color: var(--accent); font-size: 11px; }

/* statement band */
.band { background: linear-gradient(135deg, var(--hero-a), var(--hero-b)); color: var(--hero-fg); }
.band .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 48px; align-items: center; padding-block: 80px; }
.band h2 { margin-top: 0; }
.band p { color: var(--hero-muted); font-size: 18px; margin: 18px 0 0; max-width: 52ch; }
.band .eyebrow { color: var(--signal); }
.contact { background: var(--glass); border: 1px solid var(--glass-line); border-radius: 24px; padding: 28px; display: grid; gap: 18px; min-width: 0; }
.contact div { display: grid; gap: 2px; }
.contact .eyebrow { color: var(--signal); font-size: 11px; }
.contact .v { font-size: 17px; overflow-wrap: anywhere; }
.contact a.v:hover { color: var(--signal); }

/* article pages */
.article { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 64px; align-items: start; }
.prose { min-width: 0; max-width: 74ch; }
.prose > * + * { margin-top: 18px; }
.prose h2 { font-size: clamp(22px, 2.6vw, 30px); margin: 56px 0 0; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 19px; margin: 36px 0 0; }
.prose p, .prose li { color: var(--muted); font-size: 17px; }
.prose p strong, .prose li strong { color: var(--fg); font-weight: 600; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 22px; display: grid; gap: 8px; }
.prose li::marker { color: var(--accent); }
.chips { list-style: none; padding: 0 !important; display: flex !important; flex-wrap: wrap; gap: 10px; }
.chips li { background: var(--chip); color: var(--fg) !important; border-radius: 999px; padding: 6px 16px; font-size: 15px !important; }
.dl { display: grid; gap: 12px; }
.dl > div { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px 22px; display: grid; gap: 4px; }
.dl b { font-family: var(--display); font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.dl span { color: var(--muted); font-size: 16px; }
.lede { font-size: 20px !important; line-height: 1.55; color: var(--fg) !important; }
aside.side { position: sticky; top: 96px; display: grid; gap: 18px; min-width: 0; }
.side .box { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 24px; display: grid; gap: 12px; }
.side .box.dark { background: linear-gradient(135deg, var(--hero-a), var(--hero-b)); border-color: transparent; color: var(--hero-fg); }
.side .box.dark p { color: var(--hero-muted); margin: 0; font-size: 15px; }
.side h3 { margin: 0; font-size: 17px; }
.side nav { display: grid; gap: 2px; }
.side nav a { padding: 9px 12px; border-radius: 10px; font-size: 15px; color: var(--muted); }
.side nav a:hover { background: var(--chip); color: var(--fg); }
.side nav a[aria-current="page"] { background: var(--chip); color: var(--accent); font-weight: 600; }
.side .row { display: grid; gap: 2px; font-size: 15px; overflow-wrap: anywhere; }
.side .row .eyebrow { color: var(--accent); font-size: 11px; }
.side .row a:hover { color: var(--accent); }

/* document list (resources, licences) */
.docs { display: grid; gap: 14px; }
.doc { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 20px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 22px 26px; transition: border-color .2s; }
.doc:hover { border-color: var(--accent); }
.doc .ic { width: 48px; height: 56px; border-radius: 10px; background: var(--chip); color: var(--accent); display: grid; place-items: center; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .06em; }
.doc h3 { margin: 0 0 2px; font-size: 18px; }
.doc p { margin: 0; color: var(--muted); font-size: 15px; }
.doc .go { font-weight: 600; font-size: 14px; color: var(--accent); white-space: nowrap; font-family: var(--display); }

/* contact form */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 48px; align-items: start; }
form.f { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 32px; display: grid; gap: 18px; min-width: 0; }
form.f .two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
form.f label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
form.f input, form.f textarea { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; width: 100%; min-width: 0; }
form.f textarea { min-height: 150px; resize: vertical; }
form.f input:focus, form.f textarea:focus { border-color: var(--accent); }
.hp { position: absolute; left: -9999px; }
.status { font-size: 15px; min-height: 1.4em; }
.status.ok { color: #1a8f4c; }
.status.err { color: #c0392b; }
.info { display: grid; gap: 18px; }
.info .box { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 24px; display: grid; gap: 4px; }
.info .eyebrow { color: var(--accent); font-size: 11px; }
.info .v { font-size: 18px; overflow-wrap: anywhere; }
.info a.v:hover { color: var(--accent); }

footer.site { background: var(--surface); border-top: 1px solid var(--line); color: var(--muted); font-size: 14.5px; }
footer.site .cols { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; padding-block: 52px 36px; }
footer.site h4 { font-family: var(--mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--fg); margin: 0 0 14px; font-weight: 500; }
footer.site ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
footer.site a:hover { color: var(--accent); }
footer.site .legal { border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px 24px; padding-block: 20px; flex-wrap: wrap; font-size: 13.5px; }
footer.site .about { display: grid; gap: 14px; align-content: start; min-width: 0; }
footer.site .about p { margin: 0; max-width: 34ch; }

.notfound { padding-block: 120px; text-align: left; }

@media (max-width: 1020px) {
  .hero .wrap, .band .wrap, .head, .article, .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .hero .wrap { padding-block: 56px; gap: 40px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .facts div + div { border-left: 0; border-top: 1px solid var(--line); }
  section.block { padding-block: 64px; }
  aside.side { position: static; }
  footer.site .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .burger { display: block; }
  .btn.nav { display: none; }
  .js .links { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--surface); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px max(16px, env(safe-area-inset-left, 0px)) 20px; max-height: calc(100vh - 120px); overflow-y: auto; }
  .js nav.main.open .links { display: flex; }
  .links > a, .links > .dd > a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .menu { position: static; display: flex; box-shadow: none; border: 0; padding: 0 0 0 14px; min-width: 0; }
  .dd > a::after { display: none; }
  .links .mobile-cta { display: inline-flex; margin-top: 16px; justify-content: center; }
}
@media (min-width: 1021px) { .links .mobile-cta { display: none; } }
@media (max-width: 620px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .util .right { display: none; }
  .logo small { display: none; }
  form.f .two { grid-template-columns: minmax(0, 1fr); }
  form.f { padding: 22px; }
  .doc { grid-template-columns: auto minmax(0, 1fr); }
  .doc .go { grid-column: 1 / -1; }
  footer.site .cols { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { .trace, .live i { animation: none; } .btn, .card { transition: none; } html { scroll-behavior: auto; } }