/* ============================================================
   ZENITH LABS — Sections
   ============================================================ */

/* ---------------- Hero ---------------- */

.hero {
  position: relative;
  /* Pull up under the sticky header so the hero fills the viewport and the
     header floats over it, the way the reference does. */
  --header-h: 74px;
  margin-top: calc(-1 * var(--header-h));
  padding-top: var(--header-h);
  min-height: min(100svh, 940px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-block: clamp(72px, 12vh, 140px);
}

.hero__field {
  position: absolute;
  inset: 0;
  z-index: var(--z-canvas);
  pointer-events: none;
}

/* Vignette so the display type keeps contrast over the particle field */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(115% 85% at 24% 44%, rgba(15,17,20,0.72) 0%, rgba(15,17,20,0.20) 48%, transparent 74%),
    linear-gradient(180deg, rgba(15,17,20,0.55) 0%, transparent 22%, transparent 76%, rgba(15,17,20,0.80) 100%);
}

.hero__in {
  position: relative;
  z-index: var(--z-content);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
  width: 100%;
}

.hero__copy { display: flex; flex-direction: column; gap: var(--s-5); max-width: 660px; }
.hero__h { margin-block: var(--s-2) var(--s-1); }
@media (min-width: 941px) { .hero__h { max-width: 6em; } }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-3);
}

.hero__proof {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5) var(--s-7);
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--rule);
}
.hero__proof div { display: flex; flex-direction: column; gap: 3px; }
.hero__proof b {
  font-family: var(--ff-display);
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: -0.03em;
}

/* Hero vial */
.hero__media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(380px, 62vh, 640px);
}
.hero__media .vial {
  height: clamp(320px, 52vh, 560px);
  width: auto;
  filter: drop-shadow(0 40px 70px rgba(0, 0, 0, 0.55));
}

/* Measurement ticks flanking the vial — instrument, not decoration */
.hero__ticks {
  position: absolute;
  top: 50%; translate: 0 -50%;
  display: flex;
  flex-direction: column;
  gap: 9px;
  color: var(--tx-lo-d);
}
.hero__ticks--l { left: 16px; align-items: flex-start; }
.hero__ticks--r { right: 16px; align-items: flex-end; }
.hero__ticks i { display: block; width: 12px; height: 1px; background: currentColor; opacity: 0.4; }
.hero__ticks i:nth-child(5n + 1) { width: 26px; opacity: 0.85; }

.hero__scroll {
  position: absolute;
  z-index: var(--z-content);
  left: 50%; bottom: 26px;
  translate: -50% 0;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  color: var(--tx-lo-d);
}
.hero__scroll span {
  font-family: var(--ff-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
}
.hero__scroll i {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, currentColor, transparent);
  animation: drop 2.1s var(--e-inout) infinite;
}
@keyframes drop {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@media (prefers-reduced-motion: reduce) { .hero__scroll i { animation: none; } }

@media (max-width: 1279px) { .hero__ticks { display: none; } }

@media (max-width: 940px) {
  .hero { --header-h: 62px; }
  .hero__in { grid-template-columns: 1fr; gap: var(--s-7); }
  .hero__media { order: -1; min-height: 300px; }
  .hero__media .vial { height: clamp(240px, 38vh, 340px); }
  .hero__ticks { display: none; }
  .hero__scroll { display: none; }
}

/* ---------------- Section head ---------------- */

.shead {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  max-width: 780px;
  margin-bottom: clamp(40px, 6vw, 72px);
}
.shead--center { margin-inline: auto; text-align: center; align-items: center; }

.shead--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: var(--s-7);
  align-items: end;
  max-width: none;
}
@media (max-width: 860px) { .shead--split { grid-template-columns: 1fr; align-items: start; } }

/* ---------------- Trust marquee ---------------- */

.trustbar {
  border-block: 1px solid var(--rule);
  padding-block: var(--s-5);
}

/* ---------------- Pillars ---------------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-6);
}
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, 1fr); gap: var(--s-5); } }
@media (max-width: 520px) { .pillars { grid-template-columns: 1fr; } }

/* ---------------- Catalogue ---------------- */

/* Five SKUs must hold one row on desktop — the lineup IS the brand shot.
   auto-fit gave 4 columns at 1440 and orphaned the fifth. */
.catalogue {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--s-4);
}
@media (max-width: 1240px) { .catalogue { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-5); } }
@media (max-width: 900px)  { .catalogue { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) {
  .catalogue { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
  .pcard__media .vial { height: 160px; }
  .pcard__meta { display: none; }
}

/* ---------------- Analytics / purity (dark) ---------------- */

.analytics {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
}
@media (max-width: 940px) { .analytics { grid-template-columns: 1fr; } }

.statgrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-6) var(--s-5);
  margin-top: var(--s-6);
  padding-top: var(--s-6);
  border-top: 1px solid var(--rule);
}
@media (max-width: 620px) { .statgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Chromatogram frame */
.chroma {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--ink-4);
  border-radius: var(--r-2);
  padding: var(--s-5);
}
.chroma__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  margin-bottom: var(--s-4);
  border-bottom: 1px solid var(--ink-4);
}
.chroma svg { width: 100%; height: auto; display: block; }

/* The trace draws itself as the section arrives */
.chroma .trace {
  stroke-dasharray: var(--len, 2400);
  stroke-dashoffset: var(--len, 2400);
  transition: stroke-dashoffset 2400ms var(--e-inout);
}
.is-in .chroma .trace, .chroma.is-in .trace { stroke-dashoffset: 0; }

@media (prefers-reduced-motion: reduce) {
  .chroma .trace { stroke-dashoffset: 0; transition: none; }
}

.chroma__foot {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-5);
  margin-top: var(--s-4);
  padding-top: var(--s-4);
  border-top: 1px solid var(--ink-4);
}

/* ---------------- COA / batch verification ---------------- */

.verify {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
@media (max-width: 860px) { .verify { grid-template-columns: 1fr; } }

.batch-form {
  display: flex;
  gap: var(--s-3);
  margin-top: var(--s-5);
  flex-wrap: wrap;
}
.batch-form .field { flex: 1 1 200px; }

.batch-result {
  margin-top: var(--s-5);
  padding: var(--s-5);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  border-radius: var(--r-1);
  background: var(--surface);
}
.batch-result.is-good { border-left-color: #1E7F4F; }
.batch-result.is-bad  { border-left-color: var(--red); }
.batch-result .spec { margin-top: var(--s-3); }

/* Label anatomy callouts */
.anatomy { position: relative; display: grid; place-items: center; padding: var(--s-6); }
.anatomy .vial { height: clamp(300px, 44vh, 440px); width: auto; }

.anatomy__note {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--ff-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mid);
  white-space: nowrap;
}
.anatomy__note i { display: block; width: 40px; height: 1px; background: var(--red); flex: none; }
.anatomy__note--l { flex-direction: row-reverse; right: 58%; }
.anatomy__note--r { left: 58%; }
@media (max-width: 700px) { .anatomy__note { display: none; } }

/* ---------------- Cold chain ---------------- */

.chain {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
.chain__step {
  padding: var(--s-6) var(--s-5) var(--s-6) 0;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  position: relative;
}
.chain__step:last-child { border-right: 0; }
.chain__step > .n {
  font-family: var(--ff-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  color: var(--red);
}
.chain__step > .t { font-size: var(--fs-lead); font-weight: 400; letter-spacing: -0.01em; }
.chain__step > .d { font-size: var(--fs-sm); color: var(--fg-mid); line-height: 1.6; }
@media (max-width: 860px) {
  .chain { grid-template-columns: 1fr; }
  .chain__step { border-right: 0; border-bottom: 1px solid var(--rule); padding-right: 0; }
  .chain__step:last-child { border-bottom: 0; }
}

/* ---------------- Editorial / Swiss standard ---------------- */

.editorial {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
}
@media (max-width: 900px) { .editorial { grid-template-columns: 1fr; } }

.peak {
  width: 100%;
  height: auto;
  color: var(--fg);
  opacity: 0.14;
}

/* ---------------- FAQ ---------------- */

.faq {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
@media (max-width: 860px) { .faq { grid-template-columns: 1fr; } }

/* ---------------- Closing CTA ---------------- */

.closing {
  position: relative;
  text-align: center;
  overflow: hidden;
}
.closing__field { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.closing__in {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-5);
}

/* ---------------- Compliance block ---------------- */

.compliance {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--red);
  border-radius: var(--r-1);
  padding: var(--s-5) var(--s-6);
  background: var(--surface);
}
.compliance h3 {
  font-family: var(--ff-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: var(--s-3);
  font-weight: 500;
}
.compliance p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--fg-mid);
  max-width: 78ch;
}
.compliance p + p { margin-top: var(--s-3); }

/* ---------------- Footer ---------------- */

.footer { padding-block: var(--s-9) var(--s-6); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--s-7) var(--s-6);
  padding-bottom: var(--s-7);
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 860px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer__grid { grid-template-columns: 1fr; } }

.footer__col h4 {
  font-family: var(--ff-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tr-label);
  text-transform: uppercase;
  color: var(--fg-lo);
  font-weight: 500;
  margin-bottom: var(--s-4);
}
.footer__col li + li { margin-top: 11px; }
.footer__col a { font-size: var(--fs-sm); color: var(--fg-mid); transition: color var(--t-fast); }
.footer__col a:hover { color: var(--fg); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4) var(--s-6);
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-5);
  font-family: var(--ff-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  color: var(--fg-lo);
  text-transform: uppercase;
}

/* ---------------- Cart empty ---------------- */

.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--s-3);
  padding-block: var(--s-8);
}
.citem__n { font-weight: 500; font-size: var(--fs-sm); }
.citem__p { font-variant-numeric: tabular-nums; font-weight: 500; font-size: var(--fs-sm); }

.ship-meter {
  height: 2px;
  background: var(--bone-3);
  margin-block: var(--s-3) var(--s-4);
  overflow: hidden;
}
.ship-meter i {
  display: block;
  height: 100%;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow) var(--e-out);
}