/* ============================================================
   One-Stop Hygiene Sourcing Platform — Global Stylesheet
   Design System per OneStop-Website-Design-Spec-v2.md §2–§7
   ============================================================ */

/* ---------- 1. Design Tokens (§2) ---------- */
:root {
  /* Color: Brand / Neutral */
  --c-primary-50: #F0F7FA;
  --c-primary-100: #DDEDF4;
  --c-primary-200: #B9DBE8;
  --c-primary-600: #155E85;
  --c-primary-700: #0E4A6E;
  --c-primary-800: #0A3A55;
  --c-primary-900: #082B40;
  --c-accent-500: #14B8A6;
  --c-accent-600: #0D9488;
  --c-accent-700: #0F766E;
  --c-neutral-50: #F8FAFC;
  --c-neutral-100: #F1F5F9;
  --c-neutral-200: #E2E8F0;
  --c-neutral-300: #CBD5E1;
  --c-neutral-400: #94A3B8;
  --c-neutral-500: #64748B;
  --c-neutral-600: #475569;
  --c-neutral-700: #334155;
  --c-neutral-800: #1E293B;
  --c-neutral-900: #0F172A;
  --c-white: #FFFFFF;
  --c-on-dark: #E8F4F8;

  /* Color: Semantic */
  --c-success-600: #16A34A;
  --c-warning-600: #D97706;
  --c-danger-600: #DC2626;
  --c-info-600: #0284C7;
  --c-whatsapp: #25D366;
  --c-whatsapp-hover: #1DA851;

  /* Color: Product tiers */
  --c-tier-economic: #475569;
  --c-tier-economic-bg: #F1F5F9;
  --c-tier-medium: #0369A1;
  --c-tier-medium-bg: #E0F2FE;
  --c-tier-premium: #6D28D9;
  --c-tier-premium-bg: #F5F3FF;
  --c-tier-medical: #047857;
  --c-tier-medical-bg: #ECFDF5;

  /* Color: Categories */
  --c-cat-baby: #0EA5E9;
  --c-cat-incontinence: #0E4A6E;
  --c-cat-feminine: #DB2777;
  --c-cat-pet: #D97706;
  --c-cat-wipes: #0891B2;
  --c-cat-eco: #059669;

  /* Typography */
  --fs-display: clamp(2.25rem, 4.5vw, 3.5rem);
  --fs-h2: clamp(1.75rem, 3vw, 2.375rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.5rem);
  --fs-h4: 1.125rem;
  --fs-body: 1rem;
  --fs-body-sm: 0.875rem;
  --fs-caption: 0.75rem;
  --fs-stat: clamp(2rem, 4vw, 3rem);
  --fs-button: 0.9375rem;
  --fs-nav: 0.9375rem;
  --fs-eyebrow: 0.75rem;

  /* Spacing (4px grid) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  /* Radius */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-full: 999px;

  /* Shadow */
  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --sh-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --sh-lg: 0 12px 32px rgba(15, 23, 42, 0.14);
  --sh-focus: 0 0 0 3px rgba(14, 74, 110, 0.35);

  /* Border */
  --bd-default: 1px solid #E2E8F0;
  --bd-strong: 1px solid #CBD5E1;
  --bd-focus: 2px solid #155E85;
  --bd-dark: 1px solid rgba(255, 255, 255, 0.14);
  --bd-dark-strong: 1px solid rgba(255, 255, 255, 0.3);

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 720px;
  --nav-h: 72px;

  /* Motion */
  --ease: cubic-bezier(0.33, 1, 0.68, 1);
}

/* ---------- 2. Base / Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Figtree', 'Segoe UI', sans-serif;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--c-neutral-900);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--c-primary-600);
  text-decoration: none;
  transition: color 150ms var(--ease);
}

a:hover {
  color: var(--c-primary-700);
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
}

ul,
ol {
  list-style-position: inside;
}

:focus-visible {
  outline: 2px solid var(--c-primary-600);
  outline-offset: 2px;
  box-shadow: var(--sh-focus);
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  background: var(--c-primary-700);
  color: var(--c-white);
  padding: 12px 20px;
  border-radius: 0 0 var(--r-sm) 0;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

::selection {
  background: var(--c-primary-200);
  color: var(--c-primary-900);
}

/* ---------- 3. Typography helpers ---------- */
h1,
h2,
h3,
h4 {
  font-family: 'Sora', 'Segoe UI', sans-serif;
  color: var(--c-neutral-900);
  line-height: 1.15;
}

h1 {
  font-size: var(--fs-display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--fs-h2);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h4 {
  font-size: var(--fs-h4);
  font-weight: 600;
}

p {
  max-width: 65ch;
}

.tnum {
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent-600);
  margin-bottom: var(--sp-3);
}

.on-dark .eyebrow {
  color: var(--c-accent-500);
}

.text-center {
  text-align: center;
}

.muted {
  color: var(--c-neutral-600);
}

/* ---------- 4. Layout utilities ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.section {
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-8);
}

.section--tight {
  padding-top: var(--sp-7);
  padding-bottom: var(--sp-7);
}

.section--alt {
  background: var(--c-neutral-50);
}

.section--tint {
  background: var(--c-primary-50);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--sp-6);
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head p {
  margin-top: var(--sp-3);
  color: var(--c-neutral-600);
}

.grid {
  display: grid;
  gap: var(--sp-5);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

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

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

.grid--6 {
  grid-template-columns: repeat(6, 1fr);
}

.split {
  display: grid;
  gap: var(--sp-6);
}

@media (min-width: 1024px) {
  .split--6-6 { grid-template-columns: 6fr 6fr; }
  .split--5-7 { grid-template-columns: 5fr 7fr; }
  .split--7-5 { grid-template-columns: 7fr 5fr; }
  .split--4-8 { grid-template-columns: 4fr 8fr; }
  .split--8-4 { grid-template-columns: 8fr 4fr; }
  .section { padding-top: var(--sp-10); padding-bottom: var(--sp-10); }
}

@media (min-width: 640px) {
  .container { padding-left: 24px; padding-right: 24px; }
  .section { padding-top: var(--sp-9); padding-bottom: var(--sp-9); }
}

@media (min-width: 1280px) {
  .container { padding-left: 32px; padding-right: 32px; }
}

/* ---------- 5. Buttons (§5.1) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  height: 52px;
  padding: 0 28px;
  border-radius: var(--r-sm);
  border: none;
  font-size: var(--fs-button);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  text-decoration: none;
  transition: background 150ms var(--ease), box-shadow 150ms var(--ease),
    transform 150ms var(--ease), border-color 150ms var(--ease), color 150ms var(--ease);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(0);
}

.btn svg {
  flex-shrink: 0;
}

.btn--primary {
  background: var(--c-primary-700);
  color: var(--c-white);
}

.btn--primary:hover {
  background: var(--c-primary-800);
  color: var(--c-white);
  transform: translateY(-1px);
  box-shadow: var(--sh-md);
}

.btn--secondary {
  background: transparent;
  color: var(--c-primary-700);
  border: 1.5px solid var(--c-primary-700);
}

.btn--secondary:hover {
  background: var(--c-primary-50);
  color: var(--c-primary-800);
  transform: translateY(-1px);
  box-shadow: var(--sh-md);
}

.btn--ghost {
  background: transparent;
  color: var(--c-primary-700);
  border: none;
  padding: 0 8px;
}

.btn--ghost:hover {
  color: var(--c-primary-800);
  text-decoration: underline;
  text-decoration-color: var(--c-accent-500);
  text-underline-offset: 6px;
  text-decoration-thickness: 2px;
}

.btn--whatsapp {
  background: var(--c-whatsapp);
  color: var(--c-white);
}

.btn--whatsapp:hover {
  background: var(--c-whatsapp-hover);
  color: var(--c-white);
  transform: translateY(-1px);
  box-shadow: var(--sh-md);
}

/* on-dark variants */
.on-dark .btn--primary {
  background: var(--c-white);
  color: var(--c-primary-800);
}

.on-dark .btn--primary:hover {
  background: var(--c-primary-50);
  color: var(--c-primary-800);
}

.on-dark .btn--secondary {
  color: var(--c-white);
  border-color: rgba(255, 255, 255, 0.7);
}

.on-dark .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-white);
}

.on-dark .btn--ghost {
  color: var(--c-white);
}

.on-dark .btn--ghost:hover {
  color: var(--c-white);
}

/* Button block (mobile full width) */
.btn--block {
  width: 100%;
}

@media (max-width: 639px) {
  .btn { height: 48px; }
}

/* Text arrow link (ghost-style link with arrow) */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--c-primary-700);
  font-size: var(--fs-button);
  text-decoration: none;
  transition: color 150ms var(--ease);
  min-height: 44px;
}

.link-arrow svg {
  transition: transform 150ms var(--ease);
}

.link-arrow:hover {
  color: var(--c-primary-800);
}

.link-arrow:hover svg {
  transform: translateX(3px);
}

/* ---------- 6. Navbar (§3.4) ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: var(--c-white);
  z-index: 900;
  transition: box-shadow 150ms var(--ease), border-color 150ms var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  box-shadow: var(--sh-sm);
  border-bottom-color: var(--c-neutral-200);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 16px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--c-neutral-900);
  text-decoration: none;
}

.nav__logo-mark {
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: var(--c-primary-700);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  flex-shrink: 0;
}

.nav__logo small {
  display: block;
  font-family: 'Figtree', sans-serif;
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--c-neutral-500);
  text-transform: uppercase;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--sp-1);
}

.nav__links a {
  display: flex;
  align-items: center;
  height: 72px;
  padding: 0 14px;
  font-size: var(--fs-nav);
  font-weight: 500;
  color: var(--c-neutral-700);
  text-decoration: none;
  position: relative;
  white-space: nowrap;
}

.nav__links a:hover {
  color: var(--c-primary-700);
}

.nav__links a.is-active {
  color: var(--c-primary-700);
}

.nav__links a.is-active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--c-primary-700);
}

.nav__cta {
  display: none;
}

.nav__burger {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--r-sm);
  color: var(--c-neutral-900);
}

.nav__burger:hover {
  background: var(--c-neutral-100);
}

@media (min-width: 1024px) {
  .nav__inner { padding: 0 24px; }
  .nav__links { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__burger { display: none; }
}

@media (min-width: 1280px) {
  .nav__inner { padding: 0 32px; }
}

/* Mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  background: var(--c-white);
  z-index: 950;
  transform: translateY(-100%);
  transition: transform 300ms var(--ease);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.drawer.is-open {
  transform: translateY(0);
}

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 16px;
  border-bottom: var(--bd-default);
}

.drawer__close {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--r-sm);
  color: var(--c-neutral-900);
}

.drawer__close:hover {
  background: var(--c-neutral-100);
}

.drawer__nav {
  display: flex;
  flex-direction: column;
  padding: var(--sp-4) 0;
}

.drawer__nav a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 16px;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--c-neutral-900);
  text-decoration: none;
  border-bottom: 1px solid var(--c-neutral-100);
}

.drawer__nav a:hover {
  color: var(--c-primary-700);
  background: var(--c-neutral-50);
}

.drawer__nav a.is-active {
  color: var(--c-primary-700);
}

.drawer__foot {
  padding: var(--sp-5) 16px var(--sp-6);
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

body.is-locked {
  overflow: hidden;
}

/* ---------- 7. Footer (§3.5) ---------- */
.footer {
  background: var(--c-primary-900);
  color: var(--c-on-dark);
  padding-top: var(--sp-8);
}

.footer__grid {
  display: grid;
  gap: var(--sp-6);
  padding-bottom: var(--sp-7);
}

.footer h4 {
  color: var(--c-white);
  font-size: 0.9375rem;
  margin-bottom: var(--sp-4);
  letter-spacing: 0.02em;
}

.footer p {
  color: var(--c-on-dark);
  font-size: var(--fs-body-sm);
}

.footer__brand p {
  margin-top: var(--sp-3);
  max-width: 34ch;
}

.footer__badges {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  flex-wrap: wrap;
}

.footer__badge {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--r-xs);
  border: var(--bd-dark);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-on-dark);
}

.footer__links {
  list-style: none;
}

.footer__links li + li {
  margin-top: var(--sp-2);
}

.footer__links a {
  color: var(--c-on-dark);
  font-size: var(--fs-body-sm);
  text-decoration: none;
  display: inline-flex;
  min-height: 32px;
  align-items: center;
}

.footer__links a:hover {
  color: var(--c-white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer__contact li {
  list-style: none;
  display: flex;
  gap: var(--sp-2);
  align-items: flex-start;
  font-size: var(--fs-body-sm);
  color: var(--c-on-dark);
  margin-bottom: var(--sp-3);
}

.footer__contact svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__contact a {
  color: var(--c-on-dark);
}

.footer__contact a:hover {
  color: var(--c-white);
}

.footer__bottom {
  border-top: var(--bd-dark);
  padding: var(--sp-5) 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  justify-content: space-between;
}

.footer__bottom p {
  font-size: var(--fs-caption);
  color: rgba(232, 244, 248, 0.7);
}

@media (min-width: 640px) {
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer__grid { grid-template-columns: 1.4fr 0.8fr 1fr 1.2fr; gap: var(--sp-7); }
}

/* Footer accordion on mobile */
.footer__col h4 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  min-height: 44px;
}

.footer__col h4 svg {
  transition: transform 200ms var(--ease);
  flex-shrink: 0;
}

.footer__col h4[aria-expanded='false'] + .footer__col-body {
  display: none;
}

.footer__col h4[aria-expanded='true'] svg {
  transform: rotate(180deg);
}

@media (min-width: 1024px) {
  .footer__col h4 { cursor: default; }
  .footer__col h4 svg { display: none; }
  .footer__col h4[aria-expanded='false'] + .footer__col-body { display: block; }
}

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  color: var(--c-white);
  overflow: hidden;
  margin-top: var(--nav-h);
}

.hero--center {
  text-align: center;
  justify-content: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(8, 43, 64, 0.94) 0%, rgba(14, 74, 110, 0.78) 55%, rgba(14, 74, 110, 0.45) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  padding: var(--sp-7) 0;
}

.hero--center .hero__content {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero h1 {
  color: var(--c-white);
}

.hero h1 .accent-underline {
  background: linear-gradient(transparent 62%, rgba(20, 184, 166, 0.35) 62%, rgba(20, 184, 166, 0.35) 92%, transparent 92%);
}

.hero__sub {
  color: var(--c-on-dark);
  font-size: 1.0625rem;
  margin-top: var(--sp-4);
  max-width: 52ch;
}

.hero--center .hero__sub {
  margin-left: auto;
  margin-right: auto;
}

.hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}

.hero--center .hero__pills {
  justify-content: center;
}

.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, 0.12);
  border: var(--bd-dark);
  backdrop-filter: blur(6px);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-white);
}

.hero__pill svg {
  color: var(--c-accent-500);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

.hero--center .hero__actions {
  justify-content: center;
}

@media (min-width: 1024px) {
  .hero { min-height: 640px; }
}

/* ---------- 9. Stat bar (§5.4) ---------- */
.statbar {
  position: relative;
  z-index: 2;
  margin-top: -64px;
}

.statbar__card {
  background: var(--c-white);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  border: var(--bd-default);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  overflow: hidden;
}

.stat {
  padding: var(--sp-5) var(--sp-4);
  text-align: center;
}

.stat + .stat {
  border-top: 1px solid var(--c-neutral-200);
}

.stat:nth-child(odd) + .stat {
  border-left: 1px solid var(--c-neutral-200);
}

.stat__num {
  font-family: 'Sora', sans-serif;
  font-size: var(--fs-stat);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--c-primary-700);
  line-height: 1;
}

.stat__num .unit {
  font-size: 0.6em;
  color: var(--c-accent-600);
}

.stat__label {
  display: block;
  margin-top: var(--sp-2);
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--c-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Dark stat variant (Factory page header) */
.statbar--dark .stat__num { color: var(--c-white); }
.statbar--dark .stat__num .unit { color: var(--c-accent-500); }
.statbar--dark .stat__label { color: var(--c-on-dark); }
.statbar--dark .stat + .stat { border-color: rgba(255, 255, 255, 0.14); }
.statbar--dark .stat:nth-child(odd) + .stat { border-left-color: rgba(255, 255, 255, 0.14); }

@media (min-width: 640px) {
  .statbar__card { grid-template-columns: repeat(4, 1fr); }
  .stat + .stat { border-top: none; border-left: 1px solid var(--c-neutral-200); }
  .stat:nth-child(odd) + .stat { border-left: 1px solid var(--c-neutral-200); }
  .statbar--dark .stat + .stat { border-left-color: rgba(255, 255, 255, 0.14); }
}

@media (max-width: 639px) {
  .statbar { margin-top: 0; }
  .stat { padding: var(--sp-5) var(--sp-3); }
}

/* ---------- 10. Category cards (Home §4.1-3) ---------- */
.cat-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(2, 1fr);
}

.cat-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-5);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
  min-height: 200px;
}

.cat-card:hover {
  box-shadow: var(--sh-md);
  border-color: var(--c-primary-200);
  transform: translateY(-2px);
}

.cat-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
}

.cat-card h3 {
  font-size: 1.0625rem;
  margin: 0;
}

.cat-card p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
  flex-grow: 1;
}

.cat-card__foot {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: var(--fs-button);
  color: var(--c-primary-700);
}

@media (min-width: 640px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(5, 1fr); }
  .cat-card { min-height: 220px; }
}

/* ---------- 11. Feature cards (Home §4.1-4) ---------- */
.feature-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(2, 1fr);
}

.feature-card {
  padding: var(--sp-5);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}

.feature-card:hover {
  box-shadow: var(--sh-md);
  border-color: var(--c-primary-200);
}

.feature-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: var(--c-primary-50);
  color: var(--c-primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-3);
}

.feature-card h3 {
  font-size: 1rem;
  margin-bottom: var(--sp-2);
}

.feature-card p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.feature-card--wide {
  grid-column: 1 / -1;
  border-color: var(--c-accent-500);
  border-style: dashed;
}

.feature-card--wide:hover {
  border-style: dashed;
  border-color: var(--c-accent-700);
}

@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-card--wide { grid-column: auto; }
}

@media (min-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-card--wide { grid-column: span 2; }
}

/* ---------- 12. Container compare (§5.5) ---------- */
.compare {
  background: var(--c-primary-900);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  color: var(--c-white);
}

.compare--light {
  background: transparent;
  border: var(--bd-default);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  color: var(--c-neutral-900);
}

.compare__row + .compare__row {
  margin-top: var(--sp-5);
}

.compare__row-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-2);
  font-size: var(--fs-body-sm);
  font-weight: 600;
}

.compare__bar {
  position: relative;
  height: 24px;
  border-radius: var(--r-xs);
  overflow: hidden;
}

.compare__bar-fill {
  height: 100%;
  border-radius: var(--r-xs);
  width: 0;
  transition: width 800ms var(--ease);
}

.compare__row.is-visible .compare__bar-fill--compressed { width: 100%; }
.compare__row.is-visible .compare__bar-fill--industry { width: 52%; }

.compare__bar-fill--compressed { background: var(--c-accent-700); }
.compare--light .compare__bar-fill--compressed { background: var(--c-accent-700); }
.compare__bar-fill--industry { background: rgba(255, 255, 255, 0.25); }
.compare--light .compare__bar-fill--industry { background: var(--c-neutral-300); }

.compare__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--sp-4);
  padding: 6px 12px;
  border-radius: var(--r-full);
  background: rgba(20, 184, 166, 0.2);
  color: var(--c-accent-500);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.compare--light .compare__badge {
  background: rgba(20, 184, 166, 0.2);
  color: var(--c-accent-600);
}

.compare__note {
  margin-top: var(--sp-4);
  font-size: var(--fs-caption);
  color: rgba(232, 244, 248, 0.75);
}

.compare--light .compare__note {
  color: var(--c-neutral-500);
}

.compare__num {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 1.0625rem;
}

.compare--light .compare__row-head { color: var(--c-neutral-700); }
.compare--light .compare__num { color: var(--c-primary-700); }

@media (min-width: 1024px) {
  .compare { padding: var(--sp-7); }
}

/* ---------- 13. Cert badges (§5.3) ---------- */
.cert-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(2, 1fr);
}

.cert-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-4);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}

.cert-card:hover {
  box-shadow: var(--sh-md);
  transform: translateY(-2px);
}

.cert-card__icon {
  width: auto;
  height: auto;
  max-width: 180px;
  max-height: 56px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 6px 12px;
  border: 1px solid var(--c-neutral-200);
}

.cert-card h4 {
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
}

.cert-card p {
  font-size: var(--fs-caption);
  color: var(--c-neutral-500);
}

@media (min-width: 640px) {
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .cert-grid--wall { grid-template-columns: repeat(6, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 14. Tier chip & product cards (§5.2) ---------- */
.tier-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--r-xs);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.tier-chip::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.tier-chip--economic { color: var(--c-tier-economic); background: var(--c-tier-economic-bg); }
.tier-chip--medium { color: var(--c-tier-medium); background: var(--c-tier-medium-bg); }
.tier-chip--premium { color: var(--c-tier-premium); background: var(--c-tier-premium-bg); }
.tier-chip--medical { color: var(--c-tier-medical); background: var(--c-tier-medical-bg); }

.product-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  overflow: hidden;
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}

.product-card:hover {
  box-shadow: var(--sh-md);
  border-color: var(--c-primary-200);
}

.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--c-neutral-50);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms var(--ease);
}

.product-card:hover .product-card__media img {
  transform: scale(1.02);
}

.product-card__tier {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
}

.product-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: 20px;
  flex-grow: 1;
}

.product-card__body h3 {
  font-size: 1.0625rem;
}

.product-card__specs {
  font-size: var(--fs-caption);
  color: var(--c-neutral-600);
  font-variant-numeric: tabular-nums;
}

.product-card__specs span + span::before {
  content: '·';
  margin: 0 6px;
  color: var(--c-neutral-300);
}

.product-card__tierline {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-caption);
  font-weight: 600;
  color: var(--c-neutral-700);
}

.tier-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.product-card__foot {
  padding: 0 20px 20px;
  margin-top: auto;
}

.product-card__foot .btn {
  width: 100%;
  height: 48px;
}

/* Placeholder product card */
.product-card--placeholder {
  border-style: dashed;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--sp-3);
  padding: var(--sp-6);
  background: var(--c-primary-50);
  border-color: var(--c-primary-200);
  min-height: 280px;
}

.product-card--placeholder h3 {
  font-size: 1.125rem;
}

.product-card--placeholder p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

/* ---------- 15. Spec table ---------- */
.spec-table {
  width: 100%;
  min-width: 320px;
  border-collapse: collapse;
  font-size: var(--fs-body-sm);
  font-variant-numeric: tabular-nums;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--c-neutral-100);
}

.spec-table th {
  font-size: var(--fs-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-neutral-500);
  background: var(--c-neutral-50);
}

.spec-table td:last-child,
.spec-table th:last-child {
  text-align: right;
}

.spec-table tr:hover td {
  background: var(--c-neutral-50);
}

.spec-scroll {
  overflow-x: auto;
  border: var(--bd-default);
  border-radius: var(--r-md);
  background: var(--c-white);
}

/* Category section on Products page */
.category-section {
  scroll-margin-top: calc(var(--nav-h) + 16px);
}

.category-section + .category-section {
  margin-top: var(--sp-8);
}

.category-section__head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.category-section__head .cat-dot {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  flex-shrink: 0;
}

.category-section__head h2 {
  font-size: var(--fs-h3);
}

.category-section__grid {
  display: grid;
  gap: var(--sp-5);
}

@media (min-width: 1024px) {
  .category-section__grid {
    grid-template-columns: 2fr 3fr;
    align-items: start;
  }
}

/* ---------- 16. Forms (§5.6) ---------- */
.form-card {
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  padding: 20px;
}

.form-card h2 {
  font-size: var(--fs-h3);
  margin-bottom: var(--sp-2);
}

.form-card > p {
  color: var(--c-neutral-600);
  font-size: var(--fs-body-sm);
  margin-bottom: var(--sp-5);
}

.form-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-neutral-700);
}

.form-field label .req {
  color: var(--c-danger-600);
  margin-left: 2px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: var(--bd-strong);
  border-radius: var(--r-sm);
  background: var(--c-white);
  color: var(--c-neutral-700);
  transition: border-color 150ms var(--ease), box-shadow 150ms var(--ease);
  appearance: none;
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 42px;
}

.form-field textarea {
  height: auto;
  min-height: 96px;
  padding: 12px 16px;
  resize: vertical;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--c-neutral-400);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-primary-600);
  box-shadow: var(--sh-focus);
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: var(--c-danger-600);
}

.form-field .error-msg {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-caption);
  color: var(--c-danger-600);
}

.form-field.is-invalid .error-msg {
  display: flex;
}

.error-msg svg {
  flex-shrink: 0;
}

/* Chip multi-select */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--r-full);
  border: 1.5px solid var(--c-neutral-300);
  background: var(--c-white);
  color: var(--c-neutral-700);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms var(--ease), border-color 150ms var(--ease), color 150ms var(--ease);
}

.chip:hover {
  border-color: var(--c-primary-600);
}

.chip.is-selected {
  background: var(--c-primary-700);
  border-color: var(--c-primary-700);
  color: var(--c-white);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}

.form-privacy {
  font-size: var(--fs-caption);
  color: var(--c-neutral-500);
  text-align: center;
  margin-top: var(--sp-3);
}

.form-error-bar {
  display: none;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-sm);
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: var(--c-danger-600);
  font-size: var(--fs-body-sm);
  font-weight: 500;
  margin-bottom: var(--sp-4);
}

.form-error-bar.is-visible {
  display: flex;
}

.form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-3);
  padding: var(--sp-8) var(--sp-5);
}

.form-success.is-visible {
  display: flex;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-tier-medical-bg);
  color: var(--c-success-600);
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-success h3 {
  font-size: var(--fs-h3);
}

.form-success p {
  color: var(--c-neutral-600);
  font-size: var(--fs-body-sm);
}

@media (min-width: 640px) {
  .form-card { padding: 32px; }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-field--full { grid-column: 1 / -1; }
}

/* ---------- 17. Timeline ---------- */
.timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline--vertical .timeline__item {
  position: relative;
  padding-left: var(--sp-6);
  padding-bottom: var(--sp-6);
}

.timeline--vertical .timeline__item::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 0;
  width: 2px;
  background: var(--c-primary-200);
}

.timeline--vertical .timeline__item:last-child::before {
  bottom: auto;
  height: 24px;
}

.timeline__dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-white);
  border: 3px solid var(--c-accent-600);
  z-index: 1;
}

.timeline__step {
  font-family: 'Sora', sans-serif;
  font-size: var(--fs-caption);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-accent-600);
}

.timeline__item h3 {
  font-size: 1.0625rem;
  margin: var(--sp-1) 0 var(--sp-1);
}

.timeline__item p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.timeline__time {
  display: inline-block;
  margin-top: var(--sp-2);
  font-size: var(--fs-caption);
  font-weight: 600;
  color: var(--c-neutral-500);
  font-variant-numeric: tabular-nums;
}

/* Horizontal 4-step (OEM process) */
.steps-h {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}

.step {
  position: relative;
  padding: var(--sp-5);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}

.step__num {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--c-accent-600);
  font-variant-numeric: tabular-nums;
}

.step h3 {
  font-size: 1.0625rem;
  margin: var(--sp-2) 0 var(--sp-1);
}

.step p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.step .timeline__time {
  display: block;
  margin-top: var(--sp-3);
}

@media (min-width: 640px) {
  .steps-h { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .steps-h { grid-template-columns: repeat(4, 1fr); position: relative; }
  .steps-h::before {
    content: '';
    position: absolute;
    top: 44px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: var(--c-primary-200);
    z-index: 0;
  }
  .step { z-index: 1; }
}

/* ---------- 18. Supply-chain list (Factory §4.4-4) ---------- */
.supply-list {
  list-style: none;
}

.supply-list li {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--c-neutral-200);
  align-items: flex-start;
}

.supply-list li:last-child {
  border-bottom: none;
}

.supply-list__idx {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--c-accent-600);
  letter-spacing: 0.06em;
  padding-top: 3px;
  flex-shrink: 0;
  min-width: 28px;
  font-variant-numeric: tabular-nums;
}

.supply-list__body h3 {
  font-size: 1.0625rem;
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.supply-list__body p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
  margin-top: var(--sp-1);
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: var(--r-xs);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--c-primary-50);
  color: var(--c-primary-700);
}

.tag--accent {
  background: rgba(20, 184, 166, 0.15);
  color: var(--c-accent-700);
}

/* ---------- 19. Blog ---------- */
.post-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}

.post-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.post-card:hover {
  box-shadow: var(--sh-md);
  border-color: var(--c-primary-200);
  transform: translateY(-2px);
}

.post-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--c-neutral-100);
}

.post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms var(--ease);
}

.post-card:hover .post-card__media img {
  transform: scale(1.02);
}

.post-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-5);
  flex-grow: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-caption);
  color: var(--c-neutral-500);
}

.post-card__tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: var(--r-full);
  background: rgba(20, 184, 166, 0.15);
  color: var(--c-accent-700);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.post-card h3 {
  font-size: 1.125rem;
  line-height: 1.3;
}

.post-card p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__read {
  margin-top: auto;
  padding-top: var(--sp-3);
  font-weight: 600;
  font-size: var(--fs-button);
  color: var(--c-primary-700);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (min-width: 640px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .post-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Article page */
.article {
  padding-top: calc(var(--nav-h) + var(--sp-7));
}

.article__head {
  margin-bottom: var(--sp-6);
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  margin: var(--sp-4) 0;
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-500);
}

.article__cover {
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  margin-bottom: var(--sp-6);
}

.article__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article__body {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--c-neutral-800);
}

.article__body > * + * {
  margin-top: var(--sp-5);
}

.article__body h2 {
  font-size: 1.5rem;
  margin-top: var(--sp-7);
}

.article__body h3 {
  font-size: 1.25rem;
  margin-top: var(--sp-6);
}

.article__body ul,
.article__body ol {
  padding-left: var(--sp-5);
  color: var(--c-neutral-700);
}

.article__body li + li {
  margin-top: var(--sp-2);
}

.article__body strong {
  color: var(--c-neutral-900);
}

.article__cta {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-6);
  background: var(--c-white);
  border: var(--bd-default);
  border-left: 4px solid var(--c-accent-500);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  margin-top: var(--sp-7);
}

.article__cta h3 {
  font-size: 1.25rem;
}

.article__cta p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.article__cta .btn-row {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

@media (min-width: 640px) {
  .article__cta .btn-row { flex-direction: row; }
}

.post-nav {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: var(--bd-default);
}

.post-nav a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--sp-4);
  border: var(--bd-default);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: border-color 150ms var(--ease), background 150ms var(--ease);
}

.post-nav a:hover {
  border-color: var(--c-primary-200);
  background: var(--c-neutral-50);
}

.post-nav__dir {
  font-size: var(--fs-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-neutral-400);
}

.post-nav__title {
  font-weight: 600;
  color: var(--c-neutral-900);
}

@media (min-width: 640px) {
  .post-nav { grid-template-columns: repeat(2, 1fr); }
}

/* Category filter chips */
.filter-row {
  display: flex;
  gap: var(--sp-2);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
  scrollbar-width: none;
}

.filter-row::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  flex-shrink: 0;
  min-height: 40px;
  padding: 0 18px;
  border-radius: var(--r-full);
  border: 1.5px solid var(--c-neutral-300);
  background: var(--c-white);
  color: var(--c-neutral-700);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms var(--ease);
}

.filter-chip:hover {
  border-color: var(--c-primary-600);
}

.filter-chip.is-active {
  background: var(--c-primary-700);
  border-color: var(--c-primary-700);
  color: var(--c-white);
}

/* ---------- 20. CTA band (§4.9) ---------- */
.cta-band {
  background: var(--c-primary-800);
  color: var(--c-white);
  text-align: center;
  padding: var(--sp-8) 0;
}

.cta-band h2 {
  color: var(--c-white);
  max-width: 24ch;
  margin: 0 auto;
}

.cta-band__sub {
  color: var(--c-on-dark);
  max-width: 52ch;
  margin: var(--sp-3) auto 0;
}

.cta-band__actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  align-items: stretch;
}

.cta-band__actions .btn {
  width: 100%;
}

@media (min-width: 640px) {
  .cta-band__actions {
    flex-direction: row;
    justify-content: center;
    align-items: center;
  }
  .cta-band__actions .btn { width: auto; }
}

/* ---------- 21. WhatsApp float (§5.7) ---------- */
.wa-float {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 1000;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--c-whatsapp);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--sh-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 300ms var(--ease), transform 300ms var(--ease),
    background 150ms var(--ease), box-shadow 150ms var(--ease);
  text-decoration: none;
}

.wa-float.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.wa-float:hover {
  background: var(--c-whatsapp-hover);
  box-shadow: var(--sh-lg);
  transform: scale(1.05);
}

.wa-float__tip {
  position: absolute;
  right: 68px;
  top: 50%;
  transform: translateY(-50%) translateX(4px);
  background: var(--c-white);
  color: var(--c-neutral-900);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  box-shadow: var(--sh-md);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms var(--ease), transform 150ms var(--ease);
}

.wa-float:hover .wa-float__tip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

@media (min-width: 1024px) {
  .wa-float { right: 24px; bottom: 24px; }
}

/* ---------- 22. Page headers ---------- */
.page-head {
  background: var(--c-primary-50);
  padding: calc(var(--nav-h) + var(--sp-6)) 0 var(--sp-6);
}

.page-head--dark {
  background: var(--c-primary-800);
}

.page-head--dark h1 { color: var(--c-white); }
.page-head--dark p { color: var(--c-on-dark); }
.page-head--dark .eyebrow { color: var(--c-accent-500); }

.page-head h1 {
  font-size: var(--fs-h2);
}

.page-head p {
  color: var(--c-neutral-600);
  margin-top: var(--sp-3);
  max-width: 60ch;
}

/* ---------- 23. Misc blocks ---------- */
.panel {
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  padding: var(--sp-5);
}

.panel--tint {
  background: var(--c-primary-100);
  border: none;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.market-chip {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: var(--r-full);
  background: var(--c-white);
  border: 1.5px solid var(--c-primary-200);
  color: var(--c-primary-700);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}

.contact-card h3 {
  font-size: 1.0625rem;
}

.contact-card p,
.contact-card li {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.contact-card ul {
  list-style: none;
}

.contact-card li + li {
  margin-top: var(--sp-2);
}

.contact-card a:not(.btn) {
  font-weight: 600;
  color: var(--c-primary-700);
}

.map-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  background:
    linear-gradient(135deg, rgba(14, 74, 110, 0.05) 25%, transparent 25%) 0 0 / 24px 24px,
    linear-gradient(315deg, rgba(14, 74, 110, 0.05) 25%, transparent 25%) 0 0 / 24px 24px,
    var(--c-neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-neutral-500);
  font-size: var(--fs-body-sm);
  font-weight: 500;
  border: var(--bd-default);
}

.photo-grid {
  display: grid;
  gap: var(--sp-4);
}

.photo-grid img {
  width: 100%;
  border-radius: var(--r-md);
  object-fit: cover;
}

.photo-grid img:hover {
  transform: scale(1.02);
}

.photo-grid--gallery img {
  transition: transform 200ms var(--ease);
}

/* Exhibit year cards */
.exhibit-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

.exhibit-card {
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  padding: var(--sp-5);
}

.exhibit-card h3 {
  font-size: 1.125rem;
  color: var(--c-primary-700);
}

.exhibit-card ul {
  list-style: none;
  margin-top: var(--sp-3);
}

.exhibit-card li {
  display: flex;
  gap: var(--sp-2);
  align-items: baseline;
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
  padding: var(--sp-2) 0;
  border-bottom: 1px dashed var(--c-neutral-200);
}

.exhibit-card li:last-child {
  border-bottom: none;
}

.exhibit-card li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent-500);
  flex-shrink: 0;
  align-self: center;
}

@media (min-width: 640px) {
  .exhibit-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 24. Reveal animations (§8) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms var(--ease), transform 500ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }

/* ---------- 25. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .compare__bar-fill {
    width: 100% !important;
  }
  .compare__bar-fill--industry {
    width: 52% !important;
  }
}

/* ---------- 26. No-JS fallback ---------- */
html.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* ============================================================
   v2 — One-Stop Platform additions
   (OneStop-Website-Design-Spec-v2.md §1/§2/§5/§6)
   ============================================================ */

/* ---------- 27. .tbd placeholder (§5.5) ---------- */
.tbd {
  font-weight: 400;
  color: var(--c-neutral-400);
  border-bottom: 1px dashed #94A3B8;
  font-variant-numeric: tabular-nums;
}

a.tbd {
  text-decoration: none;
  pointer-events: none;
  cursor: default;
  opacity: 0.65;
}

.wa-float--tbd {
  opacity: 0.85;
}

.wa-float--tbd:hover {
  opacity: 0.85;
  transform: none;
}

a.tbd:hover,
a.tbd:focus {
  color: var(--c-neutral-400);
  text-decoration: none;
}

/* ---------- 28. Network capability cards (§5.1) ---------- */
.cap-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}

.cap-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: 24px;
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.cap-card:hover {
  box-shadow: var(--sh-md);
  border-color: var(--c-primary-200);
  transform: translateY(-2px);
}

.cap-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: var(--c-primary-50);
  color: var(--c-primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cap-card h3 {
  font-size: 1.0625rem;
}

.cap-card p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
}

.cap-card__points {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: auto;
}

.cap-card__points li {
  font-size: var(--fs-caption);
  color: var(--c-neutral-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cap-card__points li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-accent-500);
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 29. Vetting stepper (§5.2) ---------- */
.vet-steps {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
  position: relative;
}

.vet-step {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  position: relative;
  padding: var(--sp-4);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}

.vet-step__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-primary-50);
  color: var(--c-success-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vet-step--ongoing .vet-step__icon {
  color: var(--c-primary-700);
}

.vet-step--ongoing {
  border-bottom: 2px dashed var(--c-primary-200);
}

.vet-step__body h4 {
  font-size: 0.9375rem;
  font-weight: 600;
}

.vet-step__body p {
  font-size: var(--fs-caption);
  color: var(--c-neutral-600);
  margin-top: 2px;
}

.vet-note {
  margin-top: var(--sp-5);
  text-align: center;
  font-size: var(--fs-caption);
  color: var(--c-neutral-500);
}

@media (min-width: 1024px) {
  .vet-steps {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--sp-3);
  }
  .vet-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 8%;
    right: 8%;
    height: 1px;
    background: var(--c-primary-200);
    z-index: 0;
  }
  .vet-step {
    flex-direction: column;
    z-index: 1;
    padding: var(--sp-4);
  }
}

/* ---------- 30. Workflow timeline + Timeline TBD badge (§5.4) ---------- */
.wf-steps {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}

.wf-step {
  position: relative;
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  padding: var(--sp-5);
  background: var(--c-white);
  border: var(--bd-default);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
}

.wf-step__num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-primary-50);
  color: var(--c-accent-600);
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.wf-step--ongoing .wf-step__num {
  background: var(--c-primary-50);
  color: var(--c-primary-700);
}

.wf-step__body h4 {
  font-size: 0.9375rem;
  font-weight: 600;
}

.wf-step__body p {
  font-size: var(--fs-body-sm);
  color: var(--c-neutral-600);
  margin-top: 2px;
}

.wf-step__body .link-arrow {
  margin-top: var(--sp-2);
  font-size: var(--fs-caption);
  min-height: 32px;
}

.timeline-badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  margin-top: var(--sp-2);
  border-radius: var(--r-full);
  border: 1px dashed var(--c-neutral-400);
  color: var(--c-neutral-500);
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .wf-steps {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--sp-3);
    position: relative;
  }
  .wf-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: var(--c-primary-200);
    z-index: 0;
  }
  .wf-step {
    flex-direction: column;
    z-index: 1;
  }
}

/* ---------- 31. Promise bar (§5.6) ---------- */
.promise-bar {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

.promise {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-5);
  background: var(--c-white);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  border: var(--bd-default);
}

.promise__icon {
  width: 32px;
  height: 32px;
  color: var(--c-accent-600);
}

.promise h4 {
  font-size: 1rem;
}

.promise p {
  font-size: var(--fs-caption);
  color: var(--c-neutral-600);
}

/* Promise bar on dark background (variant B) */
.promise-bar--dark .promise {
  background: transparent;
  border: none;
  box-shadow: none;
  border-top: var(--bd-dark);
  border-radius: 0;
}

.promise-bar--dark .promise__icon {
  color: var(--c-accent-500);
}

.promise-bar--dark .promise h4 {
  color: var(--c-white);
}

.promise-bar--dark .promise p {
  color: var(--c-on-dark);
}

@media (min-width: 640px) {
  .promise-bar { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 32. Cert network micro-tag + wall note (§5.3) ---------- */
.cert-card {
  position: relative;
}

.cert-card__net {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  padding: 3px 10px;
  border-radius: var(--r-full);
  background: var(--c-primary-50);
  color: var(--c-primary-700);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.cert-wall-note {
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  background: var(--c-primary-50);
  border-left: 3px solid var(--c-accent-500);
  border-radius: var(--r-sm);
  color: var(--c-neutral-700);
  font-size: var(--fs-body);
  display: flex;
  gap: var(--sp-3);
  align-items: center;
}

.cert-wall-note svg {
  flex-shrink: 0;
  color: var(--c-accent-600);
}

/* ---------- 33. Photo placeholder block (About v2) ---------- */
.photo-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  border: 1.5px dashed var(--c-neutral-300);
  background:
    linear-gradient(135deg, rgba(14, 74, 110, 0.05) 25%, transparent 25%) 0 0 / 24px 24px,
    linear-gradient(315deg, rgba(14, 74, 110, 0.05) 25%, transparent 25%) 0 0 / 24px 24px,
    var(--c-neutral-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  color: var(--c-neutral-500);
}

.photo-placeholder svg {
  color: var(--c-neutral-400);
}

.photo-placeholder figcaption {
  font-size: var(--fs-caption);
  font-weight: 500;
}

/* ---------- 34. Navbar density 1024–1279px (§2.2) ---------- */
@media (min-width: 1024px) and (max-width: 1279px) {
  .nav__links a {
    font-size: 0.875rem;
    padding: 0 10px;
  }
}

/* ---------- 35. Category chip with color dot ---------- */
.filter-chip .chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 3px;
  display: inline-block;
  margin-right: 6px;
  vertical-align: middle;
}

.filter-chip.is-active .chip-dot {
  background: var(--c-white) !important;
  opacity: 0.9;
}

/* ---------- 36. Capability hero (Sourcing header) ---------- */
.cap-hero {
  background: var(--c-primary-800);
  color: var(--c-white);
  padding: calc(var(--nav-h) + var(--sp-6)) 0 var(--sp-7);
}

.cap-hero h1 {
  color: var(--c-white);
}

.cap-hero p {
  color: var(--c-on-dark);
  margin-top: var(--sp-3);
  max-width: 60ch;
}

.cap-hero .eyebrow {
  color: var(--c-accent-500);
}

.cap-hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  align-items: flex-start;
}

@media (min-width: 640px) {
  .cap-hero__actions {
    flex-direction: row;
    align-items: center;
  }
}

/* ---------- 29b. About page figure ---------- */
.about-figure {
  margin: 0;
}

.about-figure img {
  display: block;
  width: 100%;
  border-radius: var(--r-md);
  box-shadow: var(--sh-md);
}

/* ---------- 30. Section figure (in-content photo) ---------- */
.section-figure {
  display: block;
  width: 100%;
  border-radius: var(--r-md);
  box-shadow: var(--sh-md);
  margin-top: var(--sp-5);
}

/* ---------- 31. Social links (footer + contact card) ---------- */
.social-links {
  display: flex;
  gap: 10px;
  margin-top: var(--sp-4);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--c-primary-600);
  color: #fff;
  transition: background 200ms var(--ease), transform 200ms var(--ease);
}

.social-links a:hover {
  background: var(--c-primary-700);
  transform: translateY(-2px);
}

.contact-card__social {
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-neutral-200);
}