/* Eon research kits page (/kits), 2026-11-10. Tokens from tokens.css; the dark band uses the site's measured navy
   #0A1320 (the /partners bands). Families follow the shop's EON_HX.tint classes. */
.kt { --kt-navy: #0A1320; --kt-navy2: #16243A; --kt-ice: #9CC8FF; --kt-line: #DCDEE5; --kt-paper: #F6F7F9; --kt-ok: var(--success, #1D7A4C);
  background: var(--kt-paper); color: var(--ink); padding-bottom: 88px; }
.kt [data-fam="regen"] , .kt[data-fam="regen"] { --f: #3A6EA5; --fw: #E6EEF8; }
.kt [data-fam="metabolic"] { --f: #1F7A6B; --fw: #E2F1EE; }
.kt [data-fam="cog"] { --f: #8A3A5E; --fw: #F3E8EE; }
.kt [data-fam="long"] { --f: #3F7A3A; --fw: #E8F1E4; }
.kt [data-fam="growth"] { --f: #3B4A8C; --fw: #E8EAF5; }
.kt [data-fam="mel"] { --f: #B2475E; --fw: #F7EAEE; }
.kt .mono { font-family: var(--font-mono); }
.kt-wrap { width: 100%; max-width: var(--container, 1280px); margin: 0 auto; padding: 0 32px; box-sizing: border-box; }

/* ---------------------------------------------------------------- hero band */
.kx { padding: 28px 0 0; }
.kx-band { position: relative; overflow: hidden; border-radius: 22px; color: #fff; isolation: isolate;
  background: radial-gradient(120% 90% at 85% 0%, #22385A 0%, rgba(34,56,90,0) 60%), radial-gradient(90% 80% at 0% 100%, #13263F 0%, rgba(19,38,63,0) 70%), var(--kt-navy); }
.kx-band::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 44px 44px; -webkit-mask-image: radial-gradient(80% 70% at 50% 40%, #000 30%, transparent 85%); mask-image: radial-gradient(80% 70% at 50% 40%, #000 30%, transparent 85%); }
.kx-top { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 48px; padding: 52px 56px 8px; align-items: start; }
.kx-crumbs { display: flex; gap: 8px; list-style: none; margin: 0 0 22px; padding: 0; font: 500 11px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.55); }
.kx-crumbs a { color: rgba(255,255,255,.75); text-decoration: none; }
.kx-crumbs li + li::before { content: "/"; margin-right: 8px; color: rgba(255,255,255,.3); }
.kx h1 { margin: 0; color: #fff; font-size: clamp(44px, 6.2vw, 84px); line-height: .96; letter-spacing: -.035em; font-weight: 700; }
.kx h1 span { display: block; }
.kx h1 em { display: block; font-style: normal; color: var(--kt-ice); }
.kx-lead { margin: 22px 0 0; max-width: 46ch; font-size: 17px; line-height: 1.55; color: rgba(255,255,255,.78); }
.kx-pick { background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 22px; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.kx-k { margin: 0 0 12px; font: 500 11px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.55); }
.kx-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.kx-chips button { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.04); color: #fff; font: 600 13px/1 var(--font-sans); transition: background .2s, border-color .2s, color .2s; }
.kx-chips button i { width: 7px; height: 7px; border-radius: 50%; background: var(--kt-ice); opacity: .55; }
.kx-chips button:hover { border-color: rgba(255,255,255,.4); }
.kx-chips button[aria-pressed="true"] { background: #fff; color: var(--kt-navy); border-color: #fff; }
.kx-chips button[aria-pressed="true"] i { background: var(--f, #3A6EA5); opacity: 1; }
.kx-buy { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-top: 20px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); }
.kx-what { margin: 0 0 6px; font-size: 14px; color: rgba(255,255,255,.7); }
.kx-what b { color: #fff; font-weight: 600; }
.kx-price { margin: 0; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.kx-price b { font-size: 34px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kx-price s { font: 500 15px/1 var(--font-mono); color: rgba(255,255,255,.45); }
.kx-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 14px 0 0; font: 500 12px/1.3 var(--font-mono); color: rgba(255,255,255,.6); }
.kx-foot b { color: #8EE2B8; font-weight: 600; }
.kx-foot a { color: rgba(255,255,255,.85); text-decoration: underline; text-underline-offset: 3px; }
.kx .kt-btn { background: #fff; color: var(--kt-navy); }
.kx .kt-btn:hover { background: var(--kt-ice); }
.kx .kt-cartnote { color: rgba(255,255,255,.7); }

/* the rack: ten vials rise in sequence over a numbered rail, a light sweep passes once they land */
.kx-stage { position: relative; max-width: 1000px; margin: 0 auto; padding: 12px 56px 30px; box-sizing: border-box; }
.kx-rack { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(10, minmax(0, 1fr)); gap: clamp(4px, 1.1vw, 16px); align-items: end; }
.kx-v { position: relative; }
.kx-v img { display: block; width: 100%; height: auto; filter: drop-shadow(0 14px 18px rgba(0,0,0,.45)); }
.kx-v::after { content: ""; position: absolute; left: 8%; right: 8%; bottom: -10px; height: 12px; border-radius: 50%; background: radial-gradient(closest-side, rgba(0,0,0,.55), transparent); z-index: -1; }
.kx-rail { list-style: none; margin: 18px 0 0; padding: 12px 0 0; display: grid; grid-template-columns: repeat(10, minmax(0, 1fr)); gap: clamp(4px, 1.1vw, 16px); border-top: 1px solid rgba(255,255,255,.14);
  font: 500 11px/1 var(--font-mono); letter-spacing: .08em; color: rgba(255,255,255,.45); text-align: center; }
.kx-rail i { display: block; width: 1px; height: 8px; margin: -12px auto 6px; background: rgba(255,255,255,.3); }
.kx-sweep { position: absolute; top: 0; bottom: 40px; left: 0; width: 22%; pointer-events: none; opacity: 0;
  background: linear-gradient(100deg, transparent, rgba(156,200,255,.16) 45%, rgba(255,255,255,.22) 50%, rgba(156,200,255,.16) 55%, transparent); mix-blend-mode: screen; }
@media (prefers-reduced-motion: no-preference) {
  .kx-stage.is-in .kx-v { animation: kx-rise .7s cubic-bezier(.2,.8,.2,1) both; animation-delay: calc(var(--k) * 70ms); }
  .kx-stage.is-in .kx-rail li { animation: kx-tick .4s ease both; animation-delay: calc(var(--k) * 70ms + 260ms); }
  .kx-stage.is-in .kx-sweep { animation: kx-sweep 1.5s ease-in-out 1.05s both; }
}
@keyframes kx-rise { from { opacity: 0; transform: translateY(34px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes kx-tick { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes kx-sweep { 0% { opacity: 0; transform: translateX(-30%); } 15% { opacity: 1; } 85% { opacity: 1; } 100% { opacity: 0; transform: translateX(470%); } }

/* ---------------------------------------------------------------- sections */
.kt-sec { padding: 72px 0 0; }
.kt-head { display: grid; gap: 12px; max-width: 680px; margin-bottom: 26px; }
.kt-eyebrow { display: flex; align-items: center; gap: 10px; margin: 0; font: 500 11px/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: #5A6573; }
.kt-eyebrow b { color: var(--ink); font-weight: 600; }
.kt-eyebrow::after { content: ""; width: 34px; height: 1px; background: #B9BEC8; }
.kt-head h2 { margin: 0; font-size: clamp(30px, 3.6vw, 46px); line-height: 1.04; letter-spacing: -.03em; color: var(--ink); }
.kt-head p { margin: 0; max-width: 62ch; font-size: 16px; line-height: 1.6; color: #4A5560; }

.kt-tools { display: grid; gap: 12px; margin-bottom: 22px; }
.kt-search { position: relative; display: block; }
.kt-search svg { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: #7A8490; }
.kt-search input { width: 100%; box-sizing: border-box; height: 46px; padding: 0 16px 0 42px; border: 1px solid var(--kt-line); border-radius: 999px; background: #fff;
  font: 400 15px/1 var(--font-sans); color: var(--ink); outline: none; transition: border-color .2s, box-shadow .2s; }
.kt-search input:focus { border-color: #3A5D7A; box-shadow: 0 0 0 3px rgba(58,93,122,.14); }
.kt-fams { display: flex; flex-wrap: wrap; gap: 8px; }
.kt-fams button { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--kt-line); background: #fff; color: var(--ink); font: 500 13px/1 var(--font-sans); transition: border-color .2s, background .2s, color .2s; }
.kt-fams button i { width: 7px; height: 7px; border-radius: 50%; background: var(--f); }
.kt-fams button span { font: 500 11px/1 var(--font-mono); opacity: .55; }
.kt-fams button:hover { border-color: #9AA3AE; }
.kt-fams button[aria-pressed="true"] { background: var(--kt-navy); border-color: var(--kt-navy); color: #fff; }

/* ---------------------------------------------------------------- 10-pack cards */
.kt-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.kt-card { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid #E4E6EB; border-radius: 16px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(16,24,40,.04); transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s; }
.kt-card[hidden] { display: none; }
.kt-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -14px rgba(16,24,40,.22); }
.kt-off { position: absolute; top: 10px; left: 10px; z-index: 3; padding: 4px 8px; border-radius: 6px; background: var(--kt-navy); color: #fff; font-size: 11px; font-weight: 600; letter-spacing: .04em; }
.kt-well { position: relative; aspect-ratio: 48 / 29; overflow: hidden; background: radial-gradient(90% 80% at 50% 10%, #fff 0%, rgba(255,255,255,0) 70%), linear-gradient(180deg, var(--fw, #E6EEF8), #fff 135%); }
.kt-well::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 18%; background: linear-gradient(180deg, transparent, rgba(255,255,255,.65)); pointer-events: none; z-index: 2; }
.kt-rv { position: absolute; height: auto; width: 13.6%; left: calc(7% + var(--c) * 17.6%); filter: drop-shadow(0 6px 7px rgba(20,32,48,.22)); }
.kt-rv--b { width: 12.2%; left: calc(15.8% + var(--c) * 15.2%); top: 11%; filter: drop-shadow(0 5px 6px rgba(20,32,48,.18)) brightness(.9) saturate(.95); z-index: 0; }
.kt-rv--f { top: 31%; z-index: 1; }
.kt-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.kt-b { display: flex; flex-direction: column; flex: 1; padding: 14px 16px 16px; }
.kt-fam { display: flex; align-items: center; gap: 6px; margin: 0 0 6px; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: #5A6573; }
.kt-fam i { width: 6px; height: 6px; border-radius: 50%; background: var(--f); }
.kt-card h3, .kt-kit h3 { margin: 0 0 12px; font-size: 19px; line-height: 1.15; letter-spacing: -.015em; }
.kt-card h3 a, .kt-kit h3 a { color: inherit; text-decoration: none; }
.kt-card h3 a:hover { text-decoration: underline; text-underline-offset: 3px; }
.kt-seg { display: flex; gap: 3px; padding: 3px; border-radius: 10px; background: #F1F2F5; border: 1px solid #E6E8EC; margin-bottom: 12px; overflow-x: auto; scrollbar-width: none; }
.kt-seg::-webkit-scrollbar { display: none; }
.kt-seg button { flex: 1 0 auto; min-width: 40px; height: 30px; padding: 0 8px; border: 0; border-radius: 7px; background: transparent; cursor: pointer;
  font: 500 12px/1 var(--font-mono); color: #4A5560; transition: background .2s, color .2s, box-shadow .2s; }
.kt-seg button small { margin-left: 1px; font-size: .78em; opacity: .6; }
.kt-seg button[aria-pressed="true"] { background: #fff; color: var(--ink); box-shadow: 0 1px 2px rgba(16,24,40,.12), 0 0 0 1px rgba(16,24,40,.06); }
.kt-one { display: inline-flex; align-self: flex-start; align-items: center; height: 30px; padding: 0 12px; margin: 0 0 12px; border-radius: 8px; background: #F1F2F5; border: 1px solid #E6E8EC; font-size: 12px; color: #4A5560; }
.kt-price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin: auto 0 0; }
.kt-price b { font-size: 24px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kt-price s { font: 500 13px/1 var(--font-mono); color: #8A939E; }
.kt-price small { font-size: 11px; color: var(--kt-ok); font-weight: 600; letter-spacing: .02em; }
.kt-each { margin: 6px 0 14px; font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--kt-ok); }
.kt-btn { display: inline-flex; align-items: center; justify-content: center; width: 100%; height: 44px; padding: 0 22px; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--kt-navy); color: #fff; font: 600 14.5px/1 var(--font-sans); letter-spacing: .005em; transition: background .2s, transform .15s; }
.kt-btn:hover { background: #22385A; }
.kt-btn:active { transform: scale(.985); }
.kt-btn:focus-visible { outline: 3px solid rgba(58,93,122,.45); outline-offset: 2px; }
.kt-btn.is-going { opacity: .8; cursor: progress; }
.kx .kt-btn { width: auto; flex: none; }
.kt-empty { margin: 24px 0 0; color: #5A6573; }
.kt-cartnote { margin: 10px 0 0; font-size: 12.5px; line-height: 1.45; color: #4A5560; }

/* ---------------------------------------------------------------- mixed kits */
.kt-kits { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.kt-kit { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); background: #fff; border: 1px solid #E4E6EB; border-radius: 16px; overflow: hidden; box-shadow: 0 1px 2px rgba(16,24,40,.04); }
.kt-well--kit { aspect-ratio: auto; min-height: 100%; --fw: #E9EEF5; background: radial-gradient(90% 70% at 50% 20%, #fff 0%, rgba(255,255,255,0) 70%), linear-gradient(180deg, #E6ECF4, #F7F8FA); }
.kt-well--kit .kt-rv { top: auto; }
.kt-well--kit .kt-rv--b { bottom: 33%; width: 15.2%; left: calc(12% + var(--c) * 16.4%); }
.kt-well--kit .kt-rv--f { bottom: 6%; width: 17%; left: calc(3% + var(--c) * 19%); }
.kt-kb { display: flex; flex-direction: column; padding: 20px 22px 22px; }
.kt-meta { margin: 0 0 8px; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: #5A6573; }
.kt-note { margin: -4px 0 14px; font-size: 14px; line-height: 1.5; color: #4A5560; }
.kt-items { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 7px; font-size: 14px; }
.kt-items li { display: flex; align-items: center; gap: 8px; }
.kt-items i { width: 7px; height: 7px; border-radius: 50%; background: var(--f); flex: none; }
.kt-items span { font-size: 12px; color: #5A6573; }
.kt-items a { color: var(--ink); font-weight: 600; text-decoration: none; }
.kt-items a:hover { text-decoration: underline; text-underline-offset: 3px; }
.kt-kbuy { margin-top: auto; display: grid; gap: 12px; }
.kt-more { margin: 22px 0 0; font-size: 15px; color: #4A5560; }
.kt-more a { color: #3A5D7A; font-weight: 600; }

/* ---------------------------------------------------------------- how pricing works */
.kt-rules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.kt-rule { padding: 22px; background: #fff; border: 1px solid #E4E6EB; border-radius: 16px; }
.kt-rule b { display: block; margin-bottom: 8px; font-size: 32px; letter-spacing: -.03em; color: var(--ink); }
.kt-rule b small { font-size: 15px; font-weight: 600; letter-spacing: 0; color: #4A5560; margin-left: 4px; }
.kt-rule p { margin: 0; font-size: 14.5px; line-height: 1.55; color: #4A5560; }
.kt-fine { margin: 22px 0 0; max-width: 90ch; font-size: 13px; line-height: 1.6; color: #5A6573; }
.kt-fine a { color: #3A5D7A; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1100px) { .kt-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .kt-kits { grid-template-columns: 1fr; } }
@media (max-width: 900px) {
  .kx-top { grid-template-columns: 1fr; gap: 28px; padding: 40px 32px 4px; }
  .kx-stage { padding: 14px 32px 26px; }
  .kt-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kt-rules { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .kt-wrap { padding: 0 16px; }
  .kx { padding-top: 12px; }
  .kx-band { border-radius: 18px; }
  .kx-top { padding: 30px 20px 2px; gap: 22px; }
  .kx h1 { font-size: clamp(40px, 12.5vw, 54px); }
  .kx-lead { font-size: 15.5px; margin-top: 16px; }
  .kx-pick { padding: 16px; border-radius: 14px; }
  .kx-chips button { height: 32px; padding: 0 12px; font-size: 12.5px; }
  .kx-buy { flex-direction: column; align-items: stretch; }
  .kx .kt-btn { width: 100%; }
  .kx-price b { font-size: 30px; }
  .kx-stage { padding: 10px 14px 20px; }
  .kx-rail { font-size: 9px; letter-spacing: 0; }
  .kt-sec { padding-top: 52px; }
  .kt-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .kt-card { border-radius: 14px; }
  .kt-off { top: 8px; left: 8px; padding: 3px 6px; font-size: 10px; }
  .kt-b { padding: 11px 11px 12px; }
  .kt-fam { font-size: 9px; letter-spacing: .08em; margin-bottom: 4px; }
  .kt-card h3 { font-size: 15.5px; margin-bottom: 9px; }
  .kt-seg { gap: 2px; padding: 2px; border-radius: 9px; margin-bottom: 9px; }
  .kt-seg button { min-width: 0; flex: 1 1 auto; height: 28px; padding: 0 3px; font-size: 11px; }
  .kt-one { height: 28px; padding: 0 9px; margin-bottom: 9px; font-size: 11px; }
  .kt-price { gap: 5px; }
  .kt-price b { font-size: 18.5px; }
  .kt-price s { font-size: 10.5px; }
  .kt-each { margin: 4px 0 10px; font-size: 9px; letter-spacing: .03em; }
  .kt-btn { height: 40px; font-size: 13.5px; padding: 0 10px; }
  .kt-kit { grid-template-columns: 1fr; }
  .kt-well--kit { aspect-ratio: 48 / 27; min-height: 0; }
  .kt-fams { flex-wrap: nowrap; overflow-x: auto; margin: 0 -16px; padding: 0 16px 2px; scrollbar-width: none; }
  .kt-fams::-webkit-scrollbar { display: none; }
  .kt-fams button { flex: none; }
}