/* ============================================
   Biomaxx Platform — Editorial Homepage
   ============================================ */

.platform-page {
  --platform-section: var(--space-12);
}

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

.platform-hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-10));
  padding-bottom: var(--space-10);
  overflow: hidden;
}

.platform-hero__glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 120vw);
  height: 600px;
  background: radial-gradient(ellipse at center, var(--accent-glow-medium) 0%, transparent 55%),
    radial-gradient(ellipse at 62% 38%, var(--bio-glow) 0%, transparent 48%);
  pointer-events: none;
  animation: platform-glow-drift 18s ease-in-out infinite alternate;
}

@keyframes platform-glow-drift {
  from { opacity: 0.7; transform: translateX(-50%) scale(1); }
  to { opacity: 1; transform: translateX(-48%) scale(1.06); }
}

.platform-hero__inner {
  position: relative;
  text-align: center;
  max-width: 48rem;
  margin-inline: auto;
}

.platform-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--bio);
  background: var(--surface-bio);
  border: 1px solid var(--border-bio);
  border-radius: 100px;
}

.platform-hero__eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bio);
}

.platform-hero__title {
  font-family: var(--font-sans);
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.035em;
  margin-bottom: var(--space-4);
  max-width: 18ch;
  margin-inline: auto;
  color: var(--text-primary);
}

.platform-hero__title em {
  font-style: normal;
  color: var(--text-primary);
}

.platform-hero__lede {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.platform-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.platform-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.8rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.platform-btn--primary {
  background: var(--accent);
  color: var(--on-accent);
}

.platform-btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 28px var(--accent-glow);
}

.platform-btn--ghost {
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-subtle);
}

.platform-btn--ghost:hover {
  color: var(--text-primary);
  background: var(--surface-bio-hover);
  border-color: var(--border-bio);
}

/* ---- Trust strip ---- */

.platform-trust {
  padding-block: var(--space-4);
  border-block: 1px solid var(--border-subtle);
  background: var(--surface-subtle);
}

.platform-trust__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4) var(--space-6);
  list-style: none;
}

.platform-trust__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.platform-trust__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-sm);
  background: var(--surface-bio-deep);
  color: var(--bio);
  flex-shrink: 0;
}

/* ---- Section shell ---- */

.platform-section {
  padding-block: var(--platform-section);
}

.platform-section__header {
  margin-bottom: var(--space-8);
}

.platform-section__header--center {
  text-align: center;
  max-width: 40rem;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.platform-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bio);
  margin-bottom: var(--space-2);
}

.platform-heading {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: var(--space-2);
}

.platform-lead {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ---- Category grid ---- */

.platform-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.platform-category {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.platform-category:hover {
  background: var(--card-bg-hover);
  transform: translateY(-2px);
  border-color: var(--card-border-glow);
}

.platform-category__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--surface-bio-deep);
  color: var(--bio);
}

.platform-category__name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.platform-category__desc {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.platform-category__arrow {
  margin-top: auto;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition), color var(--transition);
}

.platform-category:hover .platform-category__arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--text-primary);
}

/* ---- Protocol cards ---- */

.platform-protocols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.platform-protocol {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition), border-color var(--transition);
}

.platform-protocol:hover {
  background: var(--card-bg-hover);
  border-color: var(--card-border-glow);
}

.platform-protocol__tag {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bio);
}

.platform-protocol__title {
  font-family: var(--font-sans);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.platform-protocol__story {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  flex: 1;
}

.platform-protocol__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.platform-protocol__link {
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.platform-protocol:hover .platform-protocol__link {
  color: var(--accent);
}

/* ---- Featured products ---- */

.platform-products {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.platform-product {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.platform-product:hover {
  background: var(--card-bg-hover);
  transform: translateY(-2px);
  border-color: var(--card-border-glow);
}

.platform-product__visual {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
}

.platform-product__visual img {
  max-height: 5rem;
  width: auto;
  opacity: 0.9;
  transition: opacity var(--transition);
}

.platform-product:hover .platform-product__visual img {
  opacity: 1;
}

.platform-product__name {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.platform-product__meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.platform-product__price {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---- Science assurance ---- */

.platform-science {
  position: relative;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.platform-science__glow {
  display: none;
}

.platform-science__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.platform-science__points {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.platform-science__point {
  display: flex;
  gap: var(--space-3);
}

.platform-science__point-num {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--bio);
  padding-top: 0.15rem;
}

.platform-science__point-title {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
}

.platform-science__point-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.platform-science__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.platform-stat {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--surface-bio-deep);
  border: 1px solid var(--border-bio);
  text-align: center;
}

.platform-stat__value {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--bio);
  margin-bottom: 0.25rem;
}

.platform-stat__label {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  letter-spacing: 0.02em;
}

/* ---- Final CTA ---- */

.platform-cta {
  text-align: center;
  padding: var(--space-10) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
}

.platform-cta__title {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  max-width: 28rem;
  margin-inline: auto;
  margin-bottom: var(--space-3);
}

.platform-cta__lede {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 32rem;
  margin-inline: auto;
  margin-bottom: var(--space-5);
}

.platform-section__cta {
  text-align: center;
  margin-top: var(--space-6);
}

/* ---- Footer (platform) ---- */

.platform-footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}

.platform-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.platform-footer__copy {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.platform-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.platform-footer__links a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.platform-footer__links a:hover {
  color: var(--color-text);
}

/* ---- Nav ---- */

.platform-header .site-nav {
  gap: var(--space-3);
}

.platform-nav__link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: -0.01em;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.platform-nav__link:hover {
  color: var(--text-primary);
  background: var(--surface-bio-hover);
}

.platform-nav__link--active {
  color: var(--accent);
  background: var(--surface-bio);
}

/* ---- Systems grid (homepage) ---- */

.platform-systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.platform-system-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
  min-height: 11rem;
}

.platform-system-card:hover {
  background: var(--card-bg-hover);
  transform: translateY(-2px);
  border-color: var(--card-border-glow);
}

.platform-system-card__name {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.platform-system-card__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  flex: 1;
}

.platform-system-card__cta {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: var(--space-2);
  transition: color var(--transition);
}

.platform-system-card:hover .platform-system-card__cta {
  color: var(--bio);
}

.platform-product__category {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

.platform-products--six {
  grid-template-columns: repeat(3, 1fr);
}

/* ---- Page shell ---- */

.platform-page-hero {
  padding-top: calc(var(--header-height) + var(--space-8));
  padding-bottom: var(--space-6);
}

.platform-page-hero--compact {
  padding-bottom: var(--space-4);
}

.platform-page-hero__title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-2);
}

.platform-page-hero__lede {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 40rem;
  line-height: 1.65;
}

/* ---- Compounds catalog ---- */

.compounds-toolbar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.compounds-search {
  position: relative;
  max-width: 28rem;
}

.compounds-search__icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-subtle);
  pointer-events: none;
}

.compounds-search__input {
  width: 100%;
  padding: 0.85rem var(--space-3) 0.85rem 2.75rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--surface-hover);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}

.compounds-search__input:focus {
  border-color: var(--accent);
  outline: 2px solid var(--accent-glow);
  outline-offset: 0;
  background: var(--surface-active);
}

.compounds-search__input::placeholder {
  color: var(--color-text-subtle);
}

.compound-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.compound-filter {
  padding: 0.5rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.compound-filter:hover {
  color: var(--color-text);
  background: var(--surface-bio-hover);
}

.compound-filter--active {
  color: var(--accent);
  background: var(--filter-active-bg);
  border-color: var(--accent);
  box-shadow: 0 0 14px var(--accent-glow-soft);
}

.compound-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.compound-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  min-height: 15rem;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.compound-card:hover {
  background: var(--card-bg-hover);
  transform: scale(1.01);
  border-color: var(--card-border-glow);
}

.compound-card__category {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-2);
  display: block;
}

.compound-card__name {
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.compound-card__summary {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.compound-card__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.compound-card__pricing {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.compound-card__price {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.compound-card__size {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.compound-card__cta {
  margin-left: auto;
  padding: 0.6rem 1rem;
  font-size: 0.8125rem;
  flex-shrink: 0;
}

/* ---- Compounds Explorer ---- */

.explorer-page main {
  padding-top: var(--header-height);
}

.explorer-header {
  position: sticky;
  top: var(--header-height);
  z-index: 50;
  padding-block: var(--space-4);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.explorer-header__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.explorer-search {
  position: relative;
  width: 100%;
}

.explorer-search__icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.explorer-search__input {
  width: 100%;
  padding: 1rem var(--space-4) 1rem 2.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.explorer-search__input::placeholder {
  color: var(--text-muted);
}

.explorer-search__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
  background: var(--bg-elevated);
}

.explorer-search__hint {
  display: none;
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  padding: 0.2rem 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
}

.explorer-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.explorer-filters,
.explorer-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  align-items: center;
}

.explorer-chip {
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
}

.explorer-toggle {
  padding: 0.4rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.explorer-toggle:hover {
  color: var(--text-secondary);
  background: var(--surface-bio-hover);
}

.explorer-toggle--active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--filter-active-bg);
  box-shadow: 0 0 14px var(--accent-glow-soft);
}

.explorer-toggle--active.explorer-toggle--bio {
  color: var(--bio);
  border-color: var(--bio);
  background: linear-gradient(135deg, var(--bio-soft) 0%, var(--surface-bio-deep) 100%);
  box-shadow: 0 0 12px var(--bio-glow);
}

.explorer-meta {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: -0.01em;
}

.explorer-results {
  padding-block: var(--space-6) var(--space-10);
}

.explorer-grid {
  opacity: 0;
  transition: opacity 0.18s ease;
}

.explorer-grid.explorer-grid--visible {
  opacity: 1;
}

.explorer-card {
  min-height: 16rem;
}

.explorer-mark {
  background: var(--bio-soft);
  color: var(--bio);
  border-radius: 2px;
  padding: 0 0.1em;
}

.explorer-empty {
  text-align: center;
  padding: var(--space-10) var(--space-4);
}

.explorer-empty__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.explorer-empty__lede {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.explorer-suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
}

.explorer-suggestion {
  padding: 0.5rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.explorer-suggestion:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
  border-color: var(--border-hover);
}

.compounds-empty {
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .explorer-search__hint {
    display: inline-block;
  }

  .explorer-search__input {
    padding-right: 3.5rem;
  }

  .explorer-controls {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
  }

  .explorer-toggles {
    justify-content: flex-end;
  }
}

/* ---- Product detail ---- */

.product-hero {
  padding-top: calc(var(--header-height) + var(--space-6));
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-subtle);
}

.product-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: center;
}

.product-hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.product-hero__visual img {
  max-height: 14rem;
  width: auto;
}

.product-hero__tag {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bio);
  margin-bottom: var(--space-2);
  display: block;
}

.product-hero__name {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-2);
}

.product-hero__summary {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  max-width: 32rem;
}

.product-hero__meta {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.product-hero__price {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.product-hero__size {
  font-size: 0.9375rem;
  color: var(--color-text-subtle);
}

.product-section {
  padding-block: var(--space-8);
}

.product-section__title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-3);
}

.product-section__body {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text-muted);
  max-width: 42rem;
}

.product-section__body + .product-section__body {
  margin-top: var(--space-4);
}

.product-faq {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 42rem;
}

.product-faq__item h3 {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.product-faq__item p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.product-quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  max-width: 48rem;
}

.product-quality-item {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
}

.product-quality-item h3 {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.product-quality-item p {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

/* ---- Systems page ---- */

.system-detail {
  padding-block: var(--space-8);
  border-bottom: 1px solid var(--color-border-subtle);
  scroll-margin-top: calc(var(--header-height) + var(--space-2));
}

.system-detail:last-child {
  border-bottom: none;
}

.system-detail__header {
  margin-bottom: var(--space-5);
  max-width: 40rem;
}

.system-detail__compounds {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.system-detail__compound {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--surface-subtle);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition);
}

.system-detail__compound:hover {
  background: var(--surface-hover);
}

.system-detail__protocols {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---- Science page ---- */

.science-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.science-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition), border-color var(--transition);
}

.science-card:hover {
  background: var(--card-bg-hover);
  border-color: var(--card-border-glow);
}

.science-card h2 {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.science-card p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ---- Contact ---- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  max-width: 48rem;
}

.contact-block h2 {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-2);
}

.contact-block p,
.contact-block a {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.contact-block a:hover {
  color: var(--color-accent);
}

/* ---- Dark CTA band ---- */

.platform-cta--dark {
  background: var(--bg-primary);
  border-radius: 0;
  padding: var(--space-12) var(--space-4);
  margin-inline: calc(50% - 50vw);
  width: 100vw;
  max-width: 100vw;
}

.platform-hero--brand {
  padding-top: calc(var(--header-height) + var(--space-12));
  padding-bottom: var(--space-12);
}

.platform-hero__title--brand {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.platform-section--editorial {
  --platform-section: var(--space-16);
}

.platform-section__header--wide {
  max-width: 42rem;
  margin-inline: auto;
}

.platform-heading--display {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.platform-lead--narrow {
  max-width: 32rem;
  margin-inline: auto;
}

.platform-lead--spaced {
  margin-bottom: var(--space-6);
}

/* ---- Brand pillars ---- */

.platform-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.platform-pillar {
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-bio);
}

.platform-pillar__title {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.platform-pillar__copy {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ---- Compound previews (homepage) ---- */

.platform-compound-previews {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border-subtle);
}

.platform-compound-preview {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}

.platform-compound-preview__category {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.platform-compound-preview__name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.platform-compound-preview__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 36rem;
}

.platform-compound-preview__footer {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
  flex-shrink: 0;
  padding-top: var(--space-1);
}

.platform-compound-preview__price {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}

.platform-compound-preview__cta {
  padding: 0.65rem 1.15rem;
  font-size: 0.8125rem;
}

.platform-science--editorial {
  padding: var(--space-10);
}

.platform-science__link-wrap {
  margin-top: var(--space-5);
}

.platform-cta__title--display {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  max-width: 20ch;
}

.platform-cta--dark .platform-cta__lede {
  margin-bottom: var(--space-6);
}

/* ---- Protocol cards (stacks page) ---- */

.protocol-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

/* ---- Responsive ---- */

@media (max-width: 1024px) {
  .platform-pillars {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
  }

  .platform-compound-preview {
    flex-direction: column;
    gap: var(--space-4);
  }

  .platform-compound-preview__footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }

  .platform-categories,
  .platform-systems-grid,
  .compound-grid,
  .platform-products--six {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-science__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .platform-products {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-hero__grid {
    grid-template-columns: 1fr;
  }

  .science-grid {
    grid-template-columns: 1fr;
  }

  .product-quality-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .platform-page {
    --platform-section: var(--space-8);
  }

  .platform-pillars {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .platform-hero--brand {
    padding-top: calc(var(--header-height) + var(--space-8));
    padding-bottom: var(--space-8);
  }

  .platform-hero__title--brand {
    max-width: none;
  }

  .platform-section--editorial {
    --platform-section: var(--space-10);
  }

  .platform-science--editorial {
    padding: var(--space-6);
  }

  .platform-hero {
    padding-top: calc(var(--header-height) + var(--space-6));
    padding-bottom: var(--space-6);
  }

  .platform-categories,
  .platform-protocols,
  .platform-products,
  .platform-systems-grid,
  .compound-grid,
  .protocol-grid,
  .platform-products--six {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .compound-card__cta {
    margin-left: 0;
    width: 100%;
    margin-top: var(--space-2);
  }

  .platform-trust__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .platform-hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .platform-hero__actions .platform-btn {
    width: 100%;
  }

  .platform-science {
    padding: var(--space-5);
  }

  .platform-science__stats {
    grid-template-columns: 1fr 1fr;
  }
}