:root {
  --text: #25302f;
  --muted: #64706d;
  --brand-green: #99c83d;
  --brand-orange: #f58634;
  --surface: #ffffff;
  --surface-muted: #f5f7f4;
  --border: #dfe6df;
  --shadow: 0 18px 40px rgba(30, 50, 45, 0.1);
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  background: var(--surface);
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.18;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

h3 {
  font-size: 1.15rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 92px;
  padding: 0.75rem clamp(1rem, 4vw, 3rem);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
}

.logo img {
  width: auto;
  height: clamp(56px, 8vw, 76px);
  max-width: min(190px, 48vw);
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav a {
  padding: 0.5rem 0;
  transition: color 160ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--brand-orange);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
}

.hero {
  background: #f1f1f1;
}

.hero video {
  width: 100%;
  max-height: 720px;
  object-fit: cover;
}

.section {
  padding: clamp(3.5rem, 8vw, 6.5rem) 1rem;
}

.section-muted {
  background: var(--surface-muted);
}

.container {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.narrow {
  max-width: 900px;
  text-align: center;
}

.intro p:last-child,
.section-heading p {
  margin: 1rem auto 0;
  max-width: 850px;
  font-size: 1.05rem;
}

.eyebrow {
  margin-bottom: 0.55rem;
  color: var(--brand-orange);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 920px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-heading::after,
.intro .container::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin: 1.15rem auto 0;
  background: var(--brand-green);
}

.brand-banner {
  padding: 0 1rem 4rem;
}

.brand-banner img {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.product-grid,
.value-grid,
.testimonial-grid {
  display: grid;
  gap: 1.5rem;
}

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

.nutrition-insight {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.35fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
  margin: 0 0 2rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand-green);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.nutrition-insight h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.nutrition-insight p:last-child {
  margin-bottom: 0;
}

.deficiency-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 0;
}

.deficiency-list div {
  padding: 1rem;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.deficiency-list dt {
  margin-bottom: 0.3rem;
  color: var(--text);
  font-weight: 800;
}

.deficiency-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.product-card,
.value-card,
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.product-card img,
.value-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.product-card h3 {
  padding: 1rem;
  text-align: center;
}

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

.value-card div {
  padding: 1.25rem;
}

.value-card h3 {
  margin-bottom: 0.6rem;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.split-grid img {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

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

.testimonial-card {
  padding: 1.5rem;
  text-align: center;
}

.testimonial-card img {
  width: 82px;
  height: 82px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card p {
  font-size: 0.95rem;
}

.testimonial-card h3 {
  margin-top: 1rem;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer {
  background: #1f2b29;
  color: #ffffff;
}

.site-footer p,
.site-footer a {
  color: #d9e0de;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.25fr;
  gap: 2rem;
  padding: 3.5rem 1rem;
}

.footer-logo {
  display: block;
  width: auto;
  max-width: min(180px, 100%);
  height: auto;
  max-height: clamp(120px, 18vw, 180px);
  object-fit: contain;
  object-position: left center;
  margin-bottom: 1rem;
  background: transparent;
}

.site-footer h2 {
  margin-bottom: 1rem;
  color: #ffffff;
  font-size: 1rem;
}

.site-footer a {
  display: block;
  margin-bottom: 0.45rem;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--brand-green);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1rem;
}

.footer-bottom {
  padding: 1rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p {
  margin: 0;
  font-size: 0.9rem;
}

@media (max-width: 920px) {
  .site-header {
    min-height: 78px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem;
    background: #ffffff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 0.85rem 0.5rem;
    border-bottom: 1px solid var(--border);
  }

  .main-nav a:last-child {
    border-bottom: 0;
  }

  .product-grid,
  .value-grid,
  .testimonial-grid,
  .split-grid,
  .nutrition-insight,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .section {
    padding: 3rem 1rem;
  }

  .brand-banner {
    padding-bottom: 3rem;
  }

  .product-grid,
  .value-grid,
  .testimonial-grid,
  .split-grid,
  .nutrition-insight,
  .deficiency-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero video {
    min-height: 260px;
  }
}