/* ==========================================================
   styles.css — GreenKey Upsell Site
   Mobile-first, CSS custom properties
   ========================================================== */

/* 1. CSS Variables */
:root {
  --color-primary:        #2C6E49;
  --color-primary-dark:   #1E4D33;
  --color-primary-light:  #4CAF50;
  --color-pale:           #E8F5E9;
  --color-pale-mid:       #C8E6C9;
  --color-surface:        #F7F9F7;
  --color-card:           #FFFFFF;
  --color-border:         #E0E0E0;
  --color-border-subtle:  #EEEEEE;
  --color-white:          #FFFFFF;
  --color-text-primary:   #1A2B1E;
  --color-text-secondary: #4A5D4E;
  --color-text-muted:     #8A9E8D;
  --color-text-on-green:  #FFFFFF;
  --color-success:        #2E7D32;
  --color-success-light:  #E8F5E9;
  --color-error:          #C62828;
  --color-error-light:    #FFEBEE;
  --color-overlay:        rgba(0,0,0,0.45);

  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   32px;
  --space-2xl:  48px;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:   0 1px 3px rgba(44,110,73,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:   0 4px 12px rgba(44,110,73,0.12), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:   0 8px 24px rgba(44,110,73,0.15), 0 4px 8px rgba(0,0,0,0.08);
  --shadow-cart: 0 -4px 20px rgba(0,0,0,0.10);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.32,0,0.67,0);

  --max-width:      1200px;
  --sidebar-width:  340px;
  --nav-height:     64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

/* 3. Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.nav-logo svg { width: 28px; height: 28px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
  justify-content: center;
}

.nav-links a {
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a:hover { color: var(--color-primary); background: var(--color-pale); }
.nav-links a.active { color: var(--color-primary); background: var(--color-pale); font-weight: 600; }

.nav-cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.nav-cart-btn:hover { color: var(--color-primary); background: var(--color-pale); }
.nav-cart-btn svg { width: 22px; height: 22px; }

.cart-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-primary);
  color: var(--color-text-on-green);
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  line-height: 1;
}

/* 4. Page Layout (two-column desktop) */
/* Cart More Services Promo */
.cart-more-services {
  margin: var(--space-md) var(--space-md) var(--space-md);
  background: var(--color-pale);
  border: 1.5px solid var(--color-pale-mid);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  flex-shrink: 0;
}

.cart-more-services--mobile {
  margin: var(--space-sm) var(--space-md) var(--space-lg);
}

.cart-more-icon {
  width: 40px;
  height: 40px;
  background: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.cart-more-icon svg { width: 20px; height: 20px; }

.cart-more-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.cart-more-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.btn-more-services {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  font-weight: 600;
  padding: 8px var(--space-md);
  width: 100%;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-more-services:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-more-services svg { width: 14px; height: 14px; }


.page-layout {
  display: flex;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-2xl);
  gap: var(--space-xl);
  align-items: flex-start;
}

.page-layout--single {
  flex-direction: column;
  gap: 0;
}

.main-content { flex: 1 1 0; min-width: 0; }

/* 5. Hero Banner */
.hero-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1E4D33 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  margin-bottom: var(--space-xl);
  color: var(--color-text-on-green);
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-inner { position: relative; }
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  font-size: 1rem;
  opacity: 0.85;
  max-width: 480px;
}

.hero-banner--affiliates { margin-bottom: 0; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }

/* 6. Section Title */
.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

/* 7. Services Grid */
.services-section { margin-bottom: var(--space-xl); }

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* 8. Service Card */
.service-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
  overflow: hidden;
}

.service-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-pale-mid); }

.service-card.is-added {
  border-color: var(--color-primary);
  background: var(--color-pale);
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin: var(--space-lg) var(--space-lg) 0;
  flex-shrink: 0;
  transition: background var(--transition-base);
}

.service-card.is-added .card-icon-wrap { background: var(--color-pale-mid); }
.card-icon-wrap svg { width: 26px; height: 26px; }

.card-body {
  padding: var(--space-md) var(--space-lg);
  flex: 1;
}

.card-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.card-price {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.card-price strong {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
}

.card-footer {
  padding: var(--space-sm) var(--space-lg) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* 9. Quantity Controls */
.qty-control {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-white);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 4px var(--space-sm);
  flex-shrink: 0;
}

.qty-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
  line-height: 1;
}

.qty-btn:hover { background: var(--color-pale); }
.qty-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.qty-value {
  min-width: 22px;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

.qty-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* 10. Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  background: var(--color-primary);
  color: var(--color-text-on-green);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px var(--space-lg);
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

.btn-primary:hover { background: var(--color-primary-dark); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-primary.btn-full { width: 100%; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  background: transparent;
  color: var(--color-text-secondary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px var(--space-lg);
  transition: background var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-secondary:hover { background: var(--color-pale); border-color: var(--color-pale-mid); color: var(--color-primary); }

.btn-add {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  background: var(--color-primary);
  color: var(--color-text-on-green);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 8px var(--space-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-add:hover { background: var(--color-primary-dark); }
.btn-add:active { transform: scale(0.97); }
.btn-add.btn-remove {
  background: transparent;
  color: var(--color-error);
  border: 1.5px solid var(--color-error);
}
.btn-add.btn-remove:hover { background: var(--color-error-light); }

/* 11. Cart Sidebar */
.cart-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--nav-height) + var(--space-md));
  max-height: calc(100vh - var(--nav-height) - var(--space-2xl));
  overflow-y: auto;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-subtle);
  display: none;
  flex-direction: column;
}

.cart-header {
  background: var(--color-primary);
  color: var(--color-text-on-green);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  flex-shrink: 0;
}

.cart-title {
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cart-title svg { width: 18px; height: 18px; opacity: 0.9; }

.cart-badge-inline {
  margin-left: auto;
  background: rgba(255,255,255,0.2);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
}

.cart-empty {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  flex: 1;
}

.cart-empty-sub { margin-top: var(--space-xs); font-size: 0.8rem; }

.cart-items { padding: var(--space-sm) 0; flex: 1; }

/* 12. Cart Items */
.cart-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
  animation: slideIn 200ms ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.cart-item:last-child { border-bottom: none; }
.cart-item-info { flex: 1; min-width: 0; }

.cart-item-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item-qty {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

.cart-item-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.cart-item-price {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.cart-item-price--tbc {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  font-style: italic;
}

.cart-item-remove {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.cart-item-remove:hover { color: var(--color-error); background: var(--color-error-light); }
.cart-item-remove svg { width: 14px; height: 14px; }

/* 13. Cart Totals + CTA */
.cart-totals {
  padding: var(--space-md) var(--space-lg) 0;
  border-top: 2px solid var(--color-border-subtle);
  flex-shrink: 0;
}

.cart-total-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

.cart-total-row strong { font-size: 1.1rem; color: var(--color-primary); }

.cart-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: var(--space-xs);
}

.cart-cta {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  flex-shrink: 0;
}

/* 14. Mobile Cart Panel */
.mobile-cart-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 199;
  animation: fadeIn var(--transition-base) ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.mobile-cart-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  box-shadow: var(--shadow-cart);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
  z-index: 200;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mobile-cart-panel.is-open { transform: translateY(0); }

.mobile-cart-handle {
  width: 40px;
  height: 4px;
  background: var(--color-border);
  border-radius: 99px;
  margin: var(--space-sm) auto var(--space-xs);
  flex-shrink: 0;
}

.mobile-cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border-subtle);
  flex-shrink: 0;
}

.mobile-cart-header h2 { font-size: 1.1rem; font-weight: 700; }

.mobile-cart-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.mobile-cart-close:hover { color: var(--color-text-primary); background: var(--color-pale); }

.mobile-cart-panel .cart-items { overflow-y: auto; flex: 1; }

.mobile-cart-totals {
  padding: var(--space-md) var(--space-lg) 0;
  border-top: 2px solid var(--color-border-subtle);
  flex-shrink: 0;
}

.mobile-cart-cta {
  padding: var(--space-md) var(--space-lg);
  flex-shrink: 0;
}

/* 15. Mobile Cart Bar (sticky bottom) */
.mobile-cart-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-text-on-green);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  z-index: 100;
  box-shadow: var(--shadow-cart);
  gap: var(--space-sm);
}

.mobile-cart-bar-count { font-size: 0.875rem; font-weight: 600; flex: 1; }
.mobile-cart-bar-total { font-size: 0.875rem; font-weight: 700; }
.mobile-cart-bar .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  padding: 7px var(--space-md);
  font-size: 0.85rem;
}
.mobile-cart-bar .btn-primary:hover { background: var(--color-pale); }

/* 16. Checkout Section */
.checkout-section {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xl);
}

.checkout-summary {
  background: var(--color-pale);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
}

.summary-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.summary-list { display: flex; flex-direction: column; gap: var(--space-xs); }

.summary-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  gap: var(--space-sm);
}

.summary-item strong { font-weight: 700; color: var(--color-primary); white-space: nowrap; }

.summary-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1.5px solid var(--color-pale-mid);
  font-size: 1rem;
  font-weight: 600;
}

.summary-total strong { font-size: 1.15rem; color: var(--color-primary); }

/* 17. Form */
.checkout-form { display: flex; flex-direction: column; gap: var(--space-lg); }

.form-group { display: flex; flex-direction: column; gap: var(--space-xs); }

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.form-group label span { color: var(--color-error); margin-left: 2px; }

.form-group input {
  padding: 10px var(--space-md);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}

.form-group input::placeholder { color: var(--color-text-muted); }

.form-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(44,110,73,0.12);
}

.form-group.has-error input {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(198,40,40,0.10);
}

.field-error {
  font-size: 0.8rem;
  color: var(--color-error);
  min-height: 1em;
}

.form-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-sm);
}

.form-error-banner {
  background: var(--color-error-light);
  color: var(--color-error);
  border: 1px solid var(--color-error);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

/* 18. Confirmation Message */
.confirmation-msg {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  animation: fadeInUp 400ms ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.confirm-icon {
  width: 72px;
  height: 72px;
  background: var(--color-success-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  color: var(--color-success);
}

.confirm-icon svg { width: 36px; height: 36px; }

.confirmation-msg h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.confirmation-msg p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* 19. Affiliates Page */
.affiliates-section {
  padding: var(--space-xl) var(--space-md) var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.affiliates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.affiliate-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.affiliate-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-pale-mid); }

.affiliate-logo {
  background: var(--color-pale);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border-subtle);
}

.logo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-primary);
}

.logo-placeholder svg { width: 40px; height: 40px; }

.logo-placeholder span {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary-dark);
}

.affiliate-body { padding: var(--space-lg); flex: 1; }

.affiliate-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.affiliate-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.affiliate-footer { padding: var(--space-sm) var(--space-lg) var(--space-lg); }

.btn-affiliate {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-primary);
  color: var(--color-text-on-green);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px var(--space-lg);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
  justify-content: center;
}

.btn-affiliate:hover { background: var(--color-primary-dark); box-shadow: var(--shadow-md); }
.btn-affiliate svg { width: 15px; height: 15px; opacity: 0.85; }

/* 20. Footer */
.site-footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-primary);
  font-weight: 500;
  transition: opacity var(--transition-fast);
}

.site-footer a:hover { opacity: 0.75; }

/* 21. Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* 22. Media Queries */
@media (min-width: 480px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .affiliates-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 769px) {
  .cart-sidebar { display: flex; }
  .nav-cart-btn { display: none; }
  .mobile-cart-bar { display: none !important; }
  .mobile-cart-panel { display: none !important; }
  .mobile-cart-overlay { display: none !important; }
  .page-layout { padding: var(--space-xl) var(--space-xl) var(--space-2xl); }
  .services-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
}

@media (min-width: 1024px) {
  .affiliates-grid { grid-template-columns: repeat(4, 1fr); }
  .hero-banner { padding: var(--space-2xl) var(--space-xl); }
}