/* ===== CSS Variables & Design System ===== */
:root {
  /* New Regenerative Organic Color Palette */
  --color-bg: #F8F5F0;
  --color-primary: #2D2D2D;
  --color-text: #2D2D2D;
  --color-accent: #1B4332;
  --color-accent-light: rgba(27, 67, 50, 0.1);
  --color-secondary: #BC6C25;
  --color-muted: #EFEBE5;
  --color-border: #E0DAD0;
  --color-error: #B91C1C;
  --color-success: #1B4332;
  --color-light-text: #F8F5F0;
  
  --radius-card: 16px;
  --radius-ui: 8px;
  
  --shadow-card: 0 4px 20px rgba(45, 45, 45, 0.08);
  --shadow-hover: 0 12px 40px rgba(45, 45, 45, 0.15);
  --shadow-accent: 0 8px 24px rgba(27, 67, 50, 0.2);
  
  --font-heading: 'Cardo', serif;
  --font-body: 'Inter', sans-serif;
  
  --max-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

/* ===== Reset & Base Styles ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--color-secondary);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.75rem; letter-spacing: -0.01em; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

/* ===== Header ===== */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.4s ease;
}

#site-header.scrolled {
  background-color: rgba(248, 245, 240, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(45, 45, 45, 0.1);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.header-left .logo-link {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 60px;
  width: auto;
  transition: filter 0.3s;
}

#site-header:not(.scrolled) .logo-img {
  filter: brightness(0) invert(1);
}

#site-header.scrolled .logo-img {
  filter: brightness(0);
}

.header-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.3s;
}

#site-header:not(.scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.9);
}

#site-header.scrolled .nav-link {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width 0.3s;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-secondary) !important;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-amazon {
  background-color: var(--color-secondary);
  color: white;
  padding: 0.6rem 1.25rem;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.btn-amazon:hover {
  background-color: #A55A1F;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(188, 108, 37, 0.4);
  color: white;
}

.search-btn, .cart-btn {
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

#site-header:not(.scrolled) .search-btn,
#site-header:not(.scrolled) .cart-btn {
  color: white;
}

#site-header.scrolled .search-btn,
#site-header.scrolled .cart-btn {
  color: var(--color-primary);
}

.search-btn:hover, .cart-btn:hover {
  color: var(--color-secondary) !important;
}

.cart-btn {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background-color: var(--color-secondary);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  transition: all 0.3s;
}

#site-header:not(.scrolled) .mobile-menu-toggle span {
  background-color: white;
}

#site-header.scrolled .mobile-menu-toggle span {
  background-color: var(--color-primary);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.mobile-menu.active {
  display: flex;
}

.mobile-link {
  padding: var(--spacing-sm) 0;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

/* ===== Search Overlay ===== */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(45, 45, 45, 0.9);
  z-index: 2000;
  padding: var(--spacing-xl) var(--spacing-md);
  backdrop-filter: blur(10px);
}

.search-content {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.search-content input {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1.25rem;
  border: none;
  border-radius: var(--radius-ui);
  box-shadow: var(--shadow-card);
  background-color: var(--color-bg);
}

.search-close {
  position: absolute;
  top: 50%;
  right: var(--spacing-md);
  transform: translateY(-50%);
  font-size: 2rem;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.search-results {
  max-width: 600px;
  margin: var(--spacing-md) auto 0;
  background-color: var(--color-bg);
  border-radius: var(--radius-card);
  padding: var(--spacing-md);
  max-height: 60vh;
  overflow-y: auto;
}

/* ===== Main Content ===== */
#app-content {
  min-height: calc(100vh - 200px);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.page-section {
  padding: var(--spacing-xl) 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  border-radius: var(--radius-ui);
  transition: all 0.3s;
  cursor: pointer;
  border: 2px solid transparent;
  min-height: 48px;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

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

.btn-primary:hover {
  background-color: #153D2A;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
  color: white;
}

.btn-secondary {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: transparent;
}

.btn-secondary:hover {
  background-color: var(--color-accent);
  color: white;
}

.btn-accent {
  background-color: var(--color-secondary);
  color: white;
}

.btn-accent:hover {
  background-color: #A55A1F;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(188, 108, 37, 0.3);
  color: white;
}

.btn-outline-white {
  border: 2px solid white;
  color: white;
  background: transparent;
}

.btn-outline-white:hover {
  background: white;
  color: var(--color-accent);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
}

/* ===== Play Button ===== */
.play-btn {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.play-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.play-btn svg {
  width: 24px;
  height: 24px;
  fill: var(--color-accent);
  margin-left: 4px;
}

/* ===== Video Modal ===== */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.video-modal-content {
  position: relative;
  max-width: 900px;
  width: 100%;
  aspect-ratio: 16/9;
  background: black;
  border-radius: var(--radius-card);
  overflow: hidden;
}

.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: white;
  font-size: 2rem;
  cursor: pointer;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="search"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-ui);
  font-size: 1rem;
  min-height: 48px;
  transition: all 0.3s;
  background-color: white;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== Cards ===== */
.card {
  background-color: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}

/* Value/Feature Cards */
.value-card {
  background: white;
  padding: 2.5rem 2rem;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all 0.3s;
}

.value-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-accent);
}

.value-card .icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

.value-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  font-family: var(--font-heading);
}

.value-card p {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.6;
}

.card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-content {
  padding: var(--spacing-md);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card-text {
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

/* ===== Grid Layouts ===== */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

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

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

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 0.4rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 25px;
  background: var(--color-accent);
  color: white;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-secondary {
  background: var(--color-secondary);
}

.badge-outline {
  background: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
}

/* ===== Certification Shield Section ===== */
.cert-shield {
  background: white;
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.cert-shield-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.cert-shield-item {
  position: relative;
  cursor: pointer;
  padding: 1rem;
  transition: all 0.3s;
}

.cert-shield-item:hover {
  transform: translateY(-4px);
}

.cert-shield-item img {
  height: 60px;
  width: auto;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter 0.3s;
}

.cert-shield-item:hover img {
  filter: grayscale(0%);
}

.cert-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: var(--color-primary);
  color: white;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-ui);
  font-size: 0.85rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 100;
}

.cert-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-primary);
}

.cert-shield-item:hover .cert-tooltip,
.cert-shield-item:focus .cert-tooltip,
.cert-shield-item:focus-within .cert-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Keyboard focus styles */
.cert-shield-item:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 4px;
}

/* ===== Regenerative Section ===== */
.regen-section {
  background: var(--color-muted);
  padding: 5rem 0;
}

.regen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.regen-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.regen-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

.regen-content h2 {
  margin-bottom: 1.5rem;
}

.regen-feature {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.regen-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.regen-feature h4 {
  font-family: var(--font-heading);
  margin-bottom: 0.25rem;
  font-size: 1.25rem;
}

.regen-feature p {
  color: var(--color-text);
  font-size: 0.95rem;
  margin: 0;
}

/* ===== Batch Tracker ===== */
.batch-tracker {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 2rem;
  margin-top: 2rem;
}

.batch-tracker-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.batch-tracker-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 1.5rem;
}

.batch-tracker h4 {
  margin: 0;
  font-family: var(--font-heading);
}

.batch-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.batch-info-item {
  background: var(--color-muted);
  padding: 1rem;
  border-radius: var(--radius-ui);
}

.batch-info-item label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  opacity: 0.7;
  margin-bottom: 0.25rem;
}

.batch-info-item span {
  font-weight: 600;
  color: var(--color-primary);
}

/* ===== Impact Calculator ===== */
.impact-calc {
  background: linear-gradient(135deg, var(--color-accent) 0%, #153D2A 100%);
  color: white;
  padding: 2rem;
  border-radius: var(--radius-card);
  text-align: center;
  margin-top: 2rem;
}

.impact-calc h4 {
  color: white;
  margin-bottom: 1rem;
}

.impact-number {
  font-size: 3.5rem;
  font-family: var(--font-heading);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.impact-label {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--color-accent);
  color: var(--color-light-text);
  padding: 4rem 0 2rem;
  margin-top: var(--spacing-xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: rgba(248, 245, 240, 0.8);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-newsletter-inline {
  max-width: 350px;
}

.footer-newsletter-inline h4 {
  color: var(--color-light-text);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.newsletter-form-inline {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form-inline input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--radius-ui);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  min-height: 44px;
}

.newsletter-form-inline input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.newsletter-form-inline button {
  background: var(--color-secondary);
  color: white;
  padding: 0 1.25rem;
  border-radius: var(--radius-ui);
  font-weight: 600;
  min-height: 44px;
  transition: all 0.3s;
}

.newsletter-form-inline button:hover {
  background: #A55A1F;
}

.footer-col h4 {
  color: var(--color-light-text);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: rgba(248, 245, 240, 0.75);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--color-light-text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(248, 245, 240, 0.2);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social a {
  color: rgba(248, 245, 240, 0.75);
  font-size: 0.9rem;
}

.footer-social a:hover {
  color: var(--color-secondary);
}

.footer-copyright {
  color: rgba(248, 245, 240, 0.6);
  font-size: 0.85rem;
}

.footer-copyright a {
  color: inherit;
  text-decoration: underline;
}

/* Legacy footer grid compatibility */
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-newsletter {
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

.footer-newsletter h4 {
  color: var(--color-light-text);
  margin-bottom: 0.5rem;
}

.footer-newsletter p {
  color: rgba(248, 245, 240, 0.8);
  margin-bottom: var(--spacing-sm);
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  flex: 1;
  min-height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.newsletter-form button {
  padding: 0 var(--spacing-md);
  background-color: var(--color-secondary);
  color: white;
  font-weight: 600;
  border-radius: var(--radius-ui);
  min-height: 48px;
  transition: all 0.3s;
}

.newsletter-form button:hover {
  background-color: #A55A1F;
}

.footer-certifications {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md) 0;
  border-top: 1px solid rgba(248, 245, 240, 0.2);
  border-bottom: 1px solid rgba(248, 245, 240, 0.2);
}

.cert-badge {
  padding: 0.5rem 1rem;
  background-color: rgba(248, 245, 240, 0.1);
  border-radius: var(--radius-ui);
  font-size: 0.85rem;
  color: rgba(248, 245, 240, 0.9);
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-lg { margin-top: var(--spacing-lg); }
.hidden { display: none; }

/* ===== Scroll Animations ===== */
/* Content always visible - animations are enhancement only */
.fade-in-up {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.fade-in-up.animate-ready {
  opacity: 0 !important;
  transform: translateY(30px) !important;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.animate-ready.visible {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  
  .regen-grid {
    gap: 2rem;
  }
}

@media (max-width: 900px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.75rem; }
  
  .header-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .btn-amazon {
    display: none;
  }
  
  .footer-grid, .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .regen-grid {
    grid-template-columns: 1fr;
  }
  
  .cert-shield-grid {
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  
  body {
    font-size: 16px;
  }
  
  .header-container {
    padding: var(--spacing-sm);
  }
  
  .footer-grid, .footer-top {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form, .newsletter-form-inline {
    flex-direction: column;
  }
  
  .cert-shield-grid {
    gap: 1.5rem;
  }
  
  .cert-shield-item img {
    height: 45px;
  }
  
  .batch-info {
    grid-template-columns: 1fr;
  }
}

/* ===== Loading States ===== */
.loading {
  display: flex;
  justify-content: center;
  padding: var(--spacing-xl);
}

.spinner {
  border: 3px solid var(--color-muted);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Fade In Animation ===== */
.fade-in {
  animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Certification Scroller ===== */
.cert-scroller {
  padding: 2.5rem 0;
  background: var(--color-bg);
  overflow: hidden;
}

.cert-scroller-wrapper {
  width: 100%;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.cert-scroller-track {
  display: flex;
  gap: 3rem;
  width: fit-content;
  animation: scrollCertsRTL 30s linear infinite;
}

.cert-scroller-wrapper:hover .cert-scroller-track {
  animation-play-state: paused;
}

.cert-scroller-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.cert-scroller-item img {
  height: 80px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  filter: none;
  opacity: 1;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.cert-scroller-item:hover {
  transform: scale(1.15);
}

.cert-scroller-item:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

@keyframes scrollCertsRTL {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}