/*
 * Useful Function.
 *
 * The volta-style system already live on nitro.training (`.nt-`) and
 * Minerva.chat (`.mn-`): paper ground, large light navy display face, uppercase
 * micro-labels, copper micro-numerals, numbered rows on hairlines rather than
 * boxes, inverted closing band, 600ms reveals.
 *
 * Third implementation of one design, namespaced `.uf-`, because the three sites
 * are CodeIgniter, React and static HTML and cannot share a stylesheet.
 * **Keep them in step by eye.** The token values below are Minerva's, copied
 * rather than re-picked.
 */
.uf-landing {
  --uf-paper:  #fdfdfc;
  --uf-panel:  #f8f7f4;
  --uf-line:   #efece7;
  --uf-ink:    #2d2d2d;
  --uf-muted:  #6b6b6b;
  --uf-navy:   #1f3a5f;
  --uf-copper: #c67a3c;

  margin: 0;
  background: var(--uf-paper);
  color: var(--uf-ink);
  font-family: "Inter Tight", ui-sans-serif, system-ui, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

*, *::before, *::after { box-sizing: border-box; }

.uf-wrap { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
@media (min-width: 992px) { .uf-wrap { padding: 0 2.5rem; } }

.uf-skip { position: absolute; left: -9999px; top: 0; z-index: 40;
  background: var(--uf-navy); color: #fff; padding: .625rem 1rem; }
.uf-skip:focus { left: 0; }
:focus-visible { outline: 2px solid var(--uf-copper); outline-offset: 3px; }

/* nav */
.uf-nav {
  position: sticky; top: 0; z-index: 20;
  background: var(--uf-paper);
  border-bottom: 1px solid var(--uf-line);
}
.uf-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: 62px; }
.uf-brand { font-size: 1.0625rem; letter-spacing: -.02em; color: var(--uf-navy); text-decoration: none; white-space: nowrap; }
.uf-brand-dot { color: var(--uf-copper); }
.uf-nav-links { display: flex; align-items: center; gap: 1.5rem; flex: 1; }
.uf-nav-links a {
  font-size: .8125rem; letter-spacing: .02em; color: var(--uf-muted);
  text-decoration: none; transition: color .15s ease; white-space: nowrap;
}
.uf-nav-links a:hover { color: var(--uf-ink); }
@media (max-width: 991px) { .uf-nav-links { display: none; } }

/* sections */
.uf-section { padding: clamp(3.5rem, 8vw, 7rem) 0; }
.uf-section + .uf-section { border-top: 1px solid var(--uf-line); }
.uf-hero-section { padding-top: clamp(2.5rem, 5vw, 4.5rem); }

.uf-eyebrow {
  font-size: .6875rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--uf-muted); margin: 0 0 1.75rem;
}
.uf-display {
  font-size: clamp(2.5rem, 6.5vw, 5rem); font-weight: 300; line-height: .96;
  letter-spacing: -.03em; color: var(--uf-navy); margin: 0 0 2rem; max-width: 20ch;
}
.uf-h2 {
  font-size: clamp(1.875rem, 3.4vw, 2.75rem); font-weight: 300; line-height: 1.08;
  letter-spacing: -.02em; color: var(--uf-navy); margin: 0 0 1.5rem; max-width: 24ch;
}
.uf-lead { font-size: clamp(1.0625rem, 1.5vw, 1.25rem); color: var(--uf-muted); max-width: 62ch; margin: 0 0 1.25rem; }
.uf-lead:last-child { margin-bottom: 0; }

/* buttons */
.uf-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.5rem; }
.uf-btn {
  display: inline-block; padding: .8125rem 1.75rem; border-radius: 4px;
  font-size: .9375rem; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; font-family: inherit;
  transition: opacity .15s ease, background-color .15s ease;
}
.uf-btn-sm { padding: .4375rem 1rem; font-size: .8125rem; flex-shrink: 0; }
.uf-btn-primary { background: var(--uf-navy); color: #fff; }
.uf-btn-primary:hover { opacity: .88; }
.uf-btn-ghost { border-color: var(--uf-line); color: var(--uf-ink); background: transparent; }
.uf-btn-ghost:hover { background: var(--uf-panel); }

/* hero */
.uf-hero { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
@media (min-width: 992px) {
  .uf-hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 4rem; }
  .uf-hero .uf-display { max-width: 100%; }
}
.uf-visual { border-radius: 4px; overflow: hidden; }
.uf-art {
  width: 100%; height: auto; display: block;
  /* The deck crops a wide band from the BOTTOM of this photograph - pipette
     tip, droplet, microplate. Centring it puts a gloved fist across the frame
     and cuts the plate off entirely. */
  aspect-ratio: 16 / 10; object-fit: cover; object-position: 52% 88%;
}

/* numbered rows */
.uf-rows { border-top: 1px solid var(--uf-line); }
.uf-row { display: grid; grid-template-columns: 1fr; gap: .75rem 3rem; padding: 2.25rem 0; position: relative; }
@media (min-width: 768px) {
  .uf-row { grid-template-columns: 7rem minmax(0, 20ch) minmax(0, 1fr); align-items: start; gap: 0 3rem; }
}
.uf-row::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--uf-line); transform-origin: left;
}
.uf-num { font-size: .6875rem; letter-spacing: .14em; text-transform: uppercase; color: var(--uf-copper); padding-top: .4rem; }
.uf-row-title { font-size: 1.125rem; font-weight: 500; color: var(--uf-navy); margin: 0; }
.uf-row-title a { color: inherit; text-decoration: none; }
.uf-row-title a:hover { color: var(--uf-copper); text-decoration: underline; text-underline-offset: 4px; }
.uf-row-body { color: var(--uf-muted); max-width: 62ch; }
.uf-row-lede { margin: 0 0 1rem; color: var(--uf-ink); }
.uf-row-body ul { margin: 0; padding: 0 0 0 1.1em; }
.uf-row-body li { margin: 0 0 .625rem; }
.uf-row-body li:last-child { margin-bottom: 0; }
.uf-row-body li b { color: var(--uf-ink); font-weight: 500; }
.uf-row-body li::marker { color: var(--uf-copper); }

/* inverted closing band */
.uf-invert { background: var(--uf-navy); color: rgba(255,255,255,.82); border-top: 0; }
.uf-invert .uf-eyebrow { color: rgba(255,255,255,.55); }
.uf-invert .uf-h2 { color: #fff; max-width: 26ch; }
.uf-invert .uf-lead { color: rgba(255,255,255,.78); }
.uf-invert .uf-btn-primary { background: #fff; color: var(--uf-navy); }
.uf-btn-on-dark { border-color: rgba(255,255,255,.35); color: #fff; }
.uf-btn-on-dark:hover { background: rgba(255,255,255,.1); }

.uf-social { display: flex; gap: 1.25rem; margin-top: 2.5rem; }
.uf-social a { display: block; color: rgba(255,255,255,.6); transition: color .15s ease; }
.uf-social a:hover { color: #fff; }
.uf-social svg { width: 22px; height: 22px; fill: currentColor; display: block; }

/* footer */
.uf-foot { background: var(--uf-navy); border-top: 1px solid rgba(255,255,255,.12); }
.uf-foot-inner {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-top: 1.5rem; padding-bottom: 1.5rem;
  font-size: .8125rem; color: rgba(255,255,255,.55);
}

/* motion - see the sweep in the page script for why a scroll fallback exists */
.uf-landing [data-reveal] {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s cubic-bezier(.22, 1, .36, 1), transform .6s cubic-bezier(.22, 1, .36, 1);
}
.uf-landing [data-reveal].is-visible { opacity: 1; transform: none; }
.uf-row::after { transform: scaleX(0); transition: transform .9s cubic-bezier(.22, 1, .36, 1); }
.uf-row.is-visible::after { transform: scaleX(1); }
.uf-visual .uf-art { transform: scale(1.06); transition: transform 1.2s cubic-bezier(.22, 1, .36, 1); }
.uf-visual.is-visible .uf-art { transform: scale(1); }

@media (prefers-reduced-motion: reduce) {
  .uf-landing [data-reveal],
  .uf-landing [data-reveal].is-visible { opacity: 1; transform: none; transition: none; }
  .uf-row::after, .uf-row.is-visible::after { transform: scaleX(1); transition: none; }
  .uf-visual .uf-art, .uf-visual.is-visible .uf-art { transform: none; transition: none; }
}