:root {
  --nal-green-950: #071a12;
  --nal-green-900: #0b281b;
  --nal-green-800: #103d29;
  --nal-green-700: #16583a;
  --nal-green-600: #1f754b;
  --nal-lime-500: #74c947;
  --nal-lime-400: #91dc59;
  --nal-steel-050: #f5f7f6;
  --nal-steel-100: #e8ecea;
  --nal-steel-200: #d5dad8;
  --nal-steel-300: #b9c0bd;
  --nal-steel-500: #747d79;
  --nal-steel-700: #3c4441;
  --nal-steel-850: #222927;
  --nal-steel-900: #171d1b;
  --nal-ink: #102019;
  --nal-white: #ffffff;
  --nal-border: rgba(18, 88, 57, 0.34);
  --nal-shadow: 0 12px 30px rgba(4, 19, 12, 0.16);
  --nal-radius-card: 14px;
  --nal-radius-panel: 18px;
  --nal-content-max: 1440px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--nal-ink);
  background: var(--nal-green-950) url("../images/design/science-environment.webp") center top / cover fixed no-repeat;
  font-family: Inter, "Source Sans 3", Arial, sans-serif;
  line-height: 1.55;
}
a { color: var(--nal-green-700); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid var(--nal-lime-500);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  transform: translateY(-160%);
  padding: 10px 16px;
  color: var(--nal-white);
  background: var(--nal-green-900);
}
.skip-link:focus { transform: none; }
.nal-steel {
  background:
    linear-gradient(110deg, rgba(255,255,255,.48) 0%, rgba(255,255,255,.08) 22%, rgba(70,78,75,.09) 49%, rgba(255,255,255,.30) 72%, rgba(87,96,92,.12) 100%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.025) 0, rgba(255,255,255,.025) 1px, rgba(15,30,23,.025) 1px, rgba(15,30,23,.025) 3px),
    var(--nal-steel-200);
}
.site-content {
  position: relative;
  isolation: isolate;
  width: min(calc(100% - 2 * clamp(24px, 8vw, 140px)), var(--nal-content-max));
  min-height: 100vh;
  margin-inline: auto;
  overflow: hidden;
  box-shadow: 0 0 70px rgba(0,0,0,.48);
}
.site-content::before {
  content: none;
}

#hero { text-align: center; background: var(--nal-green-950); }
.hero-image {
  display: block;
  width: 100%;
  max-width: 1920px;
  height: auto;
  margin: 0 auto;
}
.hero-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0;
  padding: 22px 20px 28px;
  background: linear-gradient(180deg, var(--nal-green-950), var(--nal-green-900));
}
.hero-button,
.coa-search-box button {
  display: inline-flex;
  min-width: 172px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border: 1px solid var(--nal-lime-500);
  border-radius: 6px;
  color: var(--nal-white);
  background: var(--nal-green-700);
  font-weight: 800;
  text-decoration: none;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.hero-button.secondary { color: var(--nal-green-900); background: var(--nal-steel-100); }
.hero-button:hover,
.coa-search-box button:hover { color: var(--nal-green-950); background: var(--nal-lime-400); }
.cart-message { color: var(--nal-white); background: var(--nal-green-900); }
.cart-message:not(:empty) { padding: 0 20px 20px; }
.cart-message a { color: var(--nal-lime-400); }

.section-eyebrow {
  margin: 0 0 8px;
  color: var(--nal-green-700);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.75rem, 3.2vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: .055em;
  text-transform: uppercase;
}
.laboratory-spotlight {
  overflow: hidden;
  background: #020707;
  border-block: 1px solid rgba(145,220,89,.28);
}
.research-spotlight-art {
  display: block;
  width: 100%;
  height: auto;
}

.research-category-key {
  width: calc(100% - 40px);
  max-width: 1240px;
  margin: 28px auto;
  padding: 14px 10px 10px;
  border: 1px solid var(--nal-border);
  border-radius: var(--nal-radius-panel);
  color: var(--nal-white);
  background: linear-gradient(180deg, rgba(5,30,17,.96), rgba(3,20,12,.98));
  box-shadow:
    0 0 0 2px rgba(245, 247, 246, .92),
    0 0 0 5px rgba(92, 100, 96, .96),
    0 0 0 7px rgba(218, 224, 221, .88),
    0 10px 20px rgba(0, 0, 0, .52),
    0 2px 4px rgba(0, 0, 0, .68);
}
.research-category-key h2 {
  margin: 0 0 18px;
  color: var(--nal-lime-400);
  font-size: 1.25rem;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}
.research-category-key__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(90px, 1fr)) minmax(190px, 1.25fr);
  gap: 8px;
}
.research-category-key__item { display: flex; min-width: 0; flex-direction: column; align-items: center; gap: 7px; text-align: center; }
.research-category-key__label { color: var(--nal-white); font-family: "Arial Narrow", Montserrat, Arial, sans-serif; font-size: .76rem; font-weight: 700; line-height: 1.25; text-transform: uppercase; }
.research-origin-certification { display:flex; align-items:center; justify-content:center; gap:12px; min-width:0; padding:8px 6px 8px 16px; border-left:1px solid rgba(145,220,89,.45); }
.research-origin-certification__flag { display:block; width:76px; aspect-ratio:1.146 / 1; object-fit:cover; object-position:center; border:1px solid rgba(255,255,255,.85); border-radius:4px; box-shadow:0 3px 8px rgba(0,0,0,.55); }
.research-origin-certification__text { color:#fff; font:800 .86rem/1.25 "Arial Narrow", Montserrat, Arial, sans-serif; letter-spacing:.025em; text-transform:uppercase; text-shadow:0 1px 2px #000; }
.research-badges {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.research-badge {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: 50%;
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  box-shadow: 0 2px 5px rgba(4,19,12,.24);
}
.research-category-key .research-badge { width: 68px; height: 68px; flex-basis: 68px; }
.research-badge::after {
  content: attr(data-tooltip);
  position: absolute;
  z-index: 30;
  left: 50%;
  bottom: calc(100% + 9px);
  width: max-content;
  max-width: 240px;
  padding: 8px 10px;
  transform: translate(-50%, 4px);
  border-radius: 5px;
  color: var(--nal-white);
  background: var(--nal-green-950);
  box-shadow: 0 6px 18px rgba(0,0,0,.3);
  font-size: .74rem;
  font-weight: 600;
  line-height: 1.3;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s ease, transform .15s ease;
}
.research-badge:hover::after,
.research-badge:focus::after { opacity: 1; transform: translate(-50%, 0); }

.products-section {
  position: relative;
  padding-top: 1px;
  background: url("../images/design/nal-logo-watermark-faint.webp") center 110px / min(50%, 560px) auto repeat-y;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 8px;
  max-width: 1170px;
  margin: 0 auto;
  padding-bottom: 28px;
}
/* Center the lone VIP tile in the final desktop grid row. */
#formula-vip {
  grid-column: 2 / 4;
  width: calc(50% - 4px);
  justify-self: center;
}
.product-card {
  position: relative;
  display: flex;
  height: 275px;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  overflow: visible;
  padding: 15px 112px 12px 12px;
  border: 1px solid var(--nal-border);
  border-radius: 7px;
  box-shadow: 0 3px 7px rgba(0,0,0,.42), inset 0 1px rgba(255,255,255,.62);
  font-weight: 700;
  text-align: center;
}
.product-card.nal-steel {
  background:
    linear-gradient(90deg, rgba(255,255,255,.52), rgba(255,255,255,.05) 22%, rgba(78,82,80,.09) 48%, rgba(255,255,255,.38) 76%, rgba(67,72,69,.08)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.20) 0, rgba(255,255,255,.20) 1px, rgba(72,77,74,.10) 1px, rgba(72,77,74,.10) 2px),
    #bfc3c1;
}
.product-card h3 {
  display: grid;
  min-height: 2.6rem;
  margin: 0;
  align-items: center;
  color: var(--nal-green-900);
  font-family: "Arial Narrow", "Roboto Condensed", Montserrat, Arial, sans-serif;
  font-size: clamp(.92rem, 1.4vw, 1.15rem);
  line-height: 1.12;
  text-transform: uppercase;
  width: 100%;
}
.product-dose {
  color: var(--nal-green-600);
  font-weight: 850;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.product-dose:hover { color: var(--nal-green-900); }
.coa-link {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 4px 9px;
  border: 1px solid var(--nal-green-700);
  border-radius: 5px;
  color: var(--nal-green-800);
  background: rgba(245,247,246,.62);
  font-size: .79rem;
  text-decoration: none;
}
.coa-link:hover { color: var(--nal-white); background: var(--nal-green-700); }
.coa-pending { color: var(--nal-steel-700); font-size: .8rem; }
.product-vial-image {
  display: block;
  position: absolute;
  right: 10px;
  bottom: 8px;
  width: 102px;
  max-width: 102px;
  height: 174px;
  margin: 0;
  padding: 0;
  object-fit: contain;
  object-position: center;
  image-rendering: auto;
  filter: contrast(1.06) saturate(1.03) drop-shadow(0 5px 4px rgba(8,18,13,.30));
}
.product-card__eyebrow {
  position: absolute;
  top: 8px;
  left: 50%;
  width: calc(100% - 16px);
  transform: translateX(-50%);
  color: var(--nal-lime-400);
  font-size: .56rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.product-card--specialty {
  color: var(--nal-white);
  border-color: var(--nal-lime-500);
  background:
    linear-gradient(rgba(8,28,18,.86), rgba(12,20,17,.94)),
    url("../images/design/ghost-flames-green.webp") center bottom / cover no-repeat,
    var(--nal-steel-900);
  box-shadow: 0 0 0 1px rgba(145,220,89,.20), 0 0 24px rgba(116,201,71,.16), var(--nal-shadow);
}
.product-card--specialty.nal-steel {
  background:
    linear-gradient(rgba(8,28,18,.86), rgba(12,20,17,.94)),
    url("../images/design/ghost-flames-green.webp") center bottom / cover no-repeat,
    var(--nal-steel-900);
}
.product-card--specialty h3 { margin-top: 7px; color: var(--nal-white); }
.product-card--specialty .product-dose { color: var(--nal-lime-400); }
.product-card--specialty .coa-link { color: var(--nal-white); border-color: var(--nal-lime-400); background: rgba(7,26,18,.56); }
.product-card--specialty .coa-link:hover { color: var(--nal-green-950); background: var(--nal-lime-400); }
.product-card--specialty .product-vial-image { filter: drop-shadow(0 0 12px rgba(116,201,71,.25)); }

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}
.product-card--bitmap-tile {
  display: block;
  overflow: hidden;
  padding: 0;
  border: 0;
  background: #bfc3c1;
  box-shadow: 0 3px 7px rgba(0,0,0,.46);
}
.product-card--bitmap-tile .product-card__tile-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
}
.product-card--bitmap-tile .research-badges { display: none; }
.product-card--bitmap-tile .product-card__cart-overlay,
.product-card--bitmap-tile .product-card__coa-overlay {
  position: absolute;
  z-index: 3;
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: transparent;
  text-decoration: none;
}
.product-card--bitmap-tile .product-card__cart-overlay {
  top: 24%;
  left: 18%;
  width: 36%;
  height: 16%;
}
.product-card--bitmap-tile .product-card__coa-overlay {
  top: 70%;
  left: 18%;
  width: 37%;
  height: 16%;
}
.product-card--bitmap-tile .product-card__cart-overlay:focus-visible,
.product-card--bitmap-tile .product-card__coa-overlay:focus-visible {
  outline: 4px solid var(--nal-lime-500);
  outline-offset: -4px;
}

/* Shared 5-amino-1MQ-inspired presentation for every standard catalog tile. */
.product-card.product-card--catalog-template {
  display: flex;
  overflow: hidden;
  padding: 13px 112px 11px 12px;
  border: 2px solid rgba(20, 24, 22, .82);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.62), rgba(255,255,255,.08) 24%, rgba(70,75,72,.10) 52%, rgba(255,255,255,.38) 79%, rgba(58,63,60,.12)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.23) 0, rgba(255,255,255,.23) 1px, rgba(66,71,68,.12) 1px, rgba(66,71,68,.12) 2px),
    #bfc3c1;
  box-shadow: 0 3px 8px rgba(0,0,0,.48), inset 0 0 0 2px rgba(255,255,255,.56);
}
.product-card--catalog-template h3 {
  order: 1;
  min-height: 2.55rem;
  color: #0a0d0b;
  font-size: clamp(.94rem, 1.45vw, 1.18rem);
  font-weight: 950;
  letter-spacing: -.025em;
  line-height: 1.04;
}
.product-card--catalog-template .product-card__purchase-list {
  display: flex;
  order: 2;
  min-height: 22px;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  width: 100%;
  gap: 1px;
  margin-top: 1px;
}
.product-card--catalog-template .product-dose,
.product-card--catalog-template .product-stock-line {
  display: grid;
  grid-template-columns: minmax(42px, auto) minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  width: 100%;
  color: #101310;
  font-family: "Arial Narrow", "Roboto Condensed", Arial, sans-serif;
  font-size: .88rem;
  font-weight: 850;
  line-height: 1.18;
  text-decoration: none;
}
.product-card--catalog-template .product-dose__price {
  color: #0b5b25;
  font-size: 1.02rem;
  font-weight: 950;
}
.product-card--catalog-template .product-stock-line__status {
  color: #155a2d;
  font-size: .76rem;
  font-weight: 950;
  line-height: 1.05;
}
.product-card--catalog-template .research-badges {
  order: 3;
  min-height: 47px;
  gap: 6px;
  margin-top: 6px;
}
.product-card--catalog-template .research-badge {
  width: 46px;
  height: 46px;
  flex-basis: 46px;
}
.product-card--catalog-template .product-card__coa-list {
  display: flex;
  order: 4;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  width: 100%;
  margin-top: 7px;
}
.product-card--catalog-template .coa-link,
.product-card--catalog-template .coa-pending {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  justify-content: center;
  padding: 3px 8px;
  border: 1px solid #245c38;
  border-radius: 5px;
  color: #174e2b;
  background: rgba(238,241,239,.72);
  font-size: .73rem;
  font-weight: 900;
  line-height: 1.05;
  text-decoration: none;
}
.product-card--catalog-template .product-vial-image {
  right: 8px;
  bottom: 6px;
  width: 106px;
  max-width: 106px;
  height: 184px;
}

.coa-access-center,
.legal-disclosure {
  width: calc(100% - 40px);
  max-width: 940px;
  margin: 42px auto;
  padding: clamp(28px, 4vw, 50px);
  border: 1px solid var(--nal-border);
  border-radius: var(--nal-radius-panel);
  color: var(--nal-ink);
  background: #bfc3c1 url("../images/catalog-locked-v2/catalog-section-steel-v1.png") center / cover no-repeat;
  box-shadow: var(--nal-shadow);
}
.coa-access-center { text-align: center; }
.coa-access-center h2,
.legal-disclosure h2 { margin-top: 0; color: var(--nal-green-900); font-size: clamp(1.5rem, 2.6vw, 2.1rem); text-transform: uppercase; }
.coa-search-box {
  display: flex;
  max-width: 900px;
  justify-content: center;
  align-items: end;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px auto;
}
.coa-search-box label { color: var(--nal-green-900); font-weight: 800; }
.coa-search-box input {
  min-width: 210px;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--nal-green-700);
  border-radius: 5px;
  background: var(--nal-steel-050);
  font-size: 16px;
}
.coa-results { max-width: 800px; margin: 0 auto; padding: 18px; border: 1px solid var(--nal-border); background: rgba(245,247,246,.74); }
.coa-results ul { margin: 0; padding-left: 1.25rem; text-align: left; }
.coa-results a { color: var(--nal-green-700); font-weight: 800; }
.legal-disclosure { max-width: 78ch; }
.legal-disclosure p { color: #000; font-size: max(16px, 1rem); font-weight: 700; }

.site-footer {
  padding: 42px 20px;
  border-top: 1px solid rgba(145,220,89,.3);
  color: var(--nal-steel-100);
  background:
    linear-gradient(110deg, rgba(255,255,255,.06), rgba(0,0,0,.22), rgba(255,255,255,.05)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, rgba(0,0,0,.025) 1px 3px),
    var(--nal-steel-900);
  text-align: center;
  font-size: 14px;
}
.site-footer::before { content: "Natural Aminos Lab"; display: block; margin-bottom: 18px; color: var(--nal-white); font-size: 1.35rem; font-weight: 900; letter-spacing: .04em; }
.site-footer a { display: inline-block; min-height: 36px; margin: 0 8px; padding: 7px 2px; color: var(--nal-steel-100); text-decoration: none; }
.site-footer a:hover,
.site-footer a:focus { color: var(--nal-lime-400); }
.footer-line { margin: 8px 0; }
.research-only { color: var(--nal-lime-400); font-weight: 800; letter-spacing: .06em; }

.legal-page { max-width: 900px; margin: 0 auto; padding: 48px 24px; background: var(--nal-steel-050); }
.legal-page pre { overflow-wrap: anywhere; white-space: pre-wrap; font: inherit; line-height: 1.65; }
.legal-page form::after { content: "Natural Aminos Lab LLC\A Nevis, St. Kitts"; display: block; margin-top: 18px; text-align: center; white-space: pre-line; line-height: 1.6; }

@media (max-width: 1100px) {
  .site-content { width: calc(100% - 40px); }
}
@media (max-width: 900px) {
  body { background-position: center top; }
  .site-content { width: calc(100% - 32px); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-inline: 18px; }
  .research-category-key__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .research-origin-certification { grid-column: span 2; }
}
@media (max-width: 600px) {
  body { background: var(--nal-green-950); }
  .site-content { width: calc(100% - 16px); }
  .hero-buttons { gap: 9px; }
  .hero-button { width: min(100%, 300px); }
  .research-category-key,
  .coa-access-center,
  .legal-disclosure { width: calc(100% - 24px); }
  .research-category-key__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-origin-certification { grid-column: 1 / -1; border-left:0; border-top:1px solid rgba(145,220,89,.45); }
  .product-grid { grid-template-columns: 1fr; max-width: 330px; padding-inline: 10px; }
  #formula-vip { grid-column: auto; width: auto; justify-self: stretch; }
  .coa-search-box { display: grid; grid-template-columns: 1fr; align-items: stretch; }
  .coa-search-box input { width: 100%; min-width: 0; }
  .site-footer a { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

/* Approved locked-v2 image catalog. Supersedes catalog-template presentation. */
.product-card.product-card--bitmap-tile{height:auto;aspect-ratio:1448/1086;padding:0;overflow:hidden;border:0;background:#080b09}
.product-card--bitmap-tile .product-card__tile-image{display:block;width:100%;height:100%;object-fit:contain}
.product-card--bitmap-tile .product-card__control-overlay{position:absolute;z-index:4;display:block;left:var(--overlay-left);top:var(--overlay-top);width:var(--overlay-width);height:var(--overlay-height);margin:0;padding:0;border:0;border-radius:6px;background:transparent;color:transparent;text-decoration:none}
.product-card--bitmap-tile .product-card__control-overlay:focus-visible{outline:4px solid var(--nal-lime-500);outline-offset:-4px}

/* Centered secondary cart control beneath the catalog's middle columns. */
.catalog-cart-callout {
  display: flex;
  width: 100%;
  justify-content: center;
  margin: 20px auto 34px;
  padding-inline: 20px;
}
.catalog-cart-callout__button {
  display: flex;
  width: min(100%, 570px);
  aspect-ratio: 3 / 1;
  align-items: center;
  justify-content: center;
  border: 5px double #292e2b;
  border-radius: 18px;
  color: #050705;
  background: #bfc3c1 url("../images/catalog-locked-v2/catalog-section-steel-v1.png") center / cover no-repeat;
  box-shadow: 0 9px 16px rgba(0,0,0,.48), inset 0 0 0 2px rgba(255,255,255,.72);
  font-family: "Arial Narrow", "Roboto Condensed", Montserrat, Arial, sans-serif;
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 950;
  letter-spacing: .02em;
  line-height: 1;
  text-decoration: none;
}
.catalog-cart-callout__button:hover { color: #050705; filter: brightness(1.08); }

/* Keep the specialty eyebrow clear of the blend tile's upper metallic frame. */
#formula-bpc-kpv-ghk-cu-blend .product-card__eyebrow { top: 4.5%; }