:root {
  color-scheme: dark;
  --bg: #050505;
  --ink: #f5f4ee;
  --muted: rgba(245, 244, 238, 0.67);
  --line: rgba(245, 244, 238, 0.17);
  --red: #ff3d55;
  --lime: #c8ff2e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--bg);
  background-size: 68px 68px;
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.kit-page { min-height: 100vh; overflow: hidden; }
.kit-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px clamp(18px, 4vw, 58px);
}
.kit-brand { display: flex; align-items: center; gap: 10px; font-weight: 950; font-size: .86rem; }
.kit-brand img { width: 38px; height: 38px; border-radius: 7px; }
.kit-back, .kit-cta {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  min-height: 44px;
  padding: 11px 15px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(4, 4, 4, .52);
  backdrop-filter: blur(12px);
  font-size: .75rem;
  font-weight: 900;
  text-transform: uppercase;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease, transform 180ms ease;
}
.kit-back:hover, .kit-cta:hover { transform: translateY(-2px); border-color: var(--red); background: var(--red); color: #080808; }
.kit-nav {
  position: absolute;
  top: 92px;
  left: clamp(18px, 4vw, 58px);
  z-index: 5;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.kit-nav a {
  padding: 9px 12px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 5px;
  background: rgba(5,5,5,.42);
  color: var(--muted);
  font-size: .68rem;
  font-weight: 850;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}
.kit-nav a:hover, .kit-nav a.active { color: var(--ink); border-color: var(--red); background: rgba(255,61,85,.13); }
.kit-hero {
  position: relative;
  min-height: min(850px, 100svh);
  display: flex;
  align-items: center;
  padding: 170px clamp(20px, 8vw, 120px) 110px;
  isolation: isolate;
}
.kit-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(90deg, #050505 0%, rgba(5,5,5,.9) 27%, rgba(5,5,5,.48) 60%, rgba(5,5,5,.12) 100%),
    linear-gradient(0deg, #050505 0%, transparent 35%, rgba(0,0,0,.28));
}
.kit-image {
  position: absolute;
  z-index: -2;
  inset: 0 0 auto auto;
  width: min(88vw, 1500px);
  height: min(850px, 100svh);
  object-fit: cover;
  object-position: center;
  opacity: 0;
  filter: blur(16px) saturate(.82);
  mask-image: linear-gradient(90deg, transparent 0%, #000 32%, #000 88%, transparent 100%);
  transition: opacity 1.2s ease, filter 1.4s ease, transform 1.8s cubic-bezier(.2,.75,.2,1);
  transform: scale(1.07);
}
.ready .kit-image { opacity: .66; filter: blur(0) saturate(.88); transform: scale(1); }
.kit-copy { position: relative; z-index: 1; width: min(760px, 72vw); }
.eyebrow { margin: 0 0 22px; color: var(--red); font-size: .76rem; font-weight: 950; letter-spacing: .04em; text-transform: uppercase; }
.kit-copy h1 {
  max-width: 850px;
  margin: 0 0 20px;
  font-size: clamp(3rem, 7.4vw, 7.8rem);
  line-height: .89;
  letter-spacing: 0;
  text-transform: uppercase;
  opacity: 0;
  transform: translateX(-44px);
  filter: blur(10px);
  transition: opacity 850ms ease .12s, transform 950ms cubic-bezier(.18,.78,.18,1) .12s, filter 950ms ease .12s;
}
.ready .kit-copy h1 { opacity: 1; transform: translateX(0); filter: blur(0); }
.kit-lead { max-width: 580px; margin: 0 0 30px; color: var(--muted); font-size: clamp(1rem, 1.35vw, 1.22rem); line-height: 1.55; opacity: 0; transform: translateY(18px); transition: opacity 750ms ease .32s, transform 750ms ease .32s; }
.ready .kit-lead { opacity: 1; transform: translateY(0); }
.kit-cta { min-height: 50px; padding: 13px 17px; }
.kit-index { position: absolute; right: clamp(20px, 4vw, 58px); bottom: 38px; color: rgba(255,255,255,.7); font-size: .78rem; font-weight: 900; letter-spacing: .08em; }
.kit-detail { position: relative; padding: 110px clamp(20px, 8vw, 120px) 130px; }
.detail-heading { display: grid; grid-template-columns: minmax(150px, .32fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 74px); align-items: start; margin-bottom: 56px; }
.detail-heading .eyebrow { padding-top: 11px; }
.detail-heading h2, .kit-end h2 { max-width: 900px; margin: 0; font-size: clamp(2.35rem, 5.4vw, 5.2rem); line-height: .96; text-transform: uppercase; }
.detail-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(240px, .65fr); gap: clamp(34px, 7vw, 110px); align-items: start; }
.capability-list { border-top: 1px solid var(--line); }
.capability {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 24px;
  gap: 16px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease, padding 220ms ease;
  transition-delay: var(--delay, 0ms);
}
.capability:hover { padding-left: 8px; border-color: rgba(255,61,85,.7); }
.capability-number, .note-index { color: var(--red); font-size: .7rem; font-weight: 950; }
.capability h3 { margin: 0 0 8px; font-size: 1.08rem; text-transform: uppercase; }
.capability p { max-width: 610px; margin: 0; color: var(--muted); line-height: 1.55; }
.capability-mark { color: var(--muted); transition: color 180ms ease, transform 180ms ease; }
.capability:hover .capability-mark { color: var(--red); transform: translate(3px,-3px); }
.kit-note { position: sticky; top: 26px; min-height: 280px; padding: 25px; border: 1px solid var(--line); border-radius: 7px; background: linear-gradient(145deg, rgba(255,255,255,.075), rgba(255,255,255,.012)); overflow: hidden; }
.kit-note p { position: relative; z-index: 1; margin: 35px 0 55px; font-size: 1.28rem; line-height: 1.45; }
.note-line { position: absolute; left: 25px; right: 25px; bottom: 24px; height: 1px; background: linear-gradient(90deg, var(--red), transparent); transform-origin: left; animation: line-grow 1.4s ease both; }
.kit-end { position: relative; display: grid; justify-items: start; gap: 22px; padding: 110px clamp(20px, 8vw, 120px) 130px; background: linear-gradient(120deg, rgba(255,61,85,.09), transparent 55%); border-top: 1px solid var(--line); }
.kit-end > p { margin: 0; color: var(--red); font-size: .73rem; font-weight: 950; }
.reveal { opacity: 0; transform: translate3d(0, 32px, 0); filter: blur(9px); transition: opacity 750ms ease, transform 850ms cubic-bezier(.2,.8,.18,1), filter 850ms ease; }
.reveal.visible { opacity: 1; transform: translate3d(0,0,0); filter: blur(0); }
@keyframes line-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 760px) {
  .kit-header { padding: 12px 14px; }
  .kit-brand { gap: 7px; font-size: .72rem; }
  .kit-brand img { width: 32px; height: 32px; }
  .kit-back { min-height: 38px; padding: 9px 10px; gap: 8px; font-size: .65rem; }
  .kit-nav { top: 68px; left: 14px; right: 14px; gap: 6px; }
  .kit-nav a { padding: 8px 9px; font-size: .6rem; }
  .kit-hero { min-height: 82svh; align-items: end; padding: 180px 18px 76px; }
  .kit-hero::after { background: linear-gradient(0deg, #050505 0%, rgba(5,5,5,.82) 25%, rgba(5,5,5,.25) 100%); }
  .kit-image { width: 100%; height: 68svh; object-position: 60% center; mask-image: linear-gradient(180deg, #000 0%, #000 55%, transparent 100%); }
  .kit-copy { width: 100%; }
  .kit-copy h1 { font-size: clamp(2.7rem, 13vw, 4.3rem); }
  .kit-lead { max-width: 540px; font-size: .98rem; }
  .kit-index { right: 18px; bottom: 22px; font-size: .68rem; }
  .kit-detail { padding: 76px 18px 88px; }
  .detail-heading { grid-template-columns: 1fr; gap: 12px; margin-bottom: 32px; }
  .detail-heading .eyebrow { padding: 0; margin-bottom: 4px; }
  .detail-heading h2, .kit-end h2 { font-size: clamp(2.25rem, 10vw, 3.5rem); }
  .detail-layout { grid-template-columns: 1fr; gap: 30px; }
  .capability { grid-template-columns: 34px minmax(0, 1fr) 18px; gap: 10px; padding: 20px 0; }
  .capability h3 { font-size: .97rem; }
  .capability p { font-size: .9rem; }
  .kit-note { position: relative; top: auto; min-height: 230px; padding: 20px; }
  .kit-note p { margin: 28px 0 50px; font-size: 1.12rem; }
  .kit-end { gap: 18px; padding: 78px 18px 100px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}