/* ============================================
   EPIC SELF PEPTIDES - Main Stylesheet
   Light / White Theme — Green & Black
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f9f3;
  --bg-overlay: rgba(255,255,255,0.95);
  --green: #149631;
  --green-light: #1cb83b;
  --green-dark: #0d7024;
  --green-glow: rgba(20,150,49,0.08);
  --text-primary: #111111;
  --text-secondary: #444444;
  --text-muted: #888888;
  --border: #e2e8e4;
  --border-green: rgba(20,150,49,0.25);
  --success: #149631;
  --error: #ef4444;
  --warning: #f59e0b;
  --nav-height: 80px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --shadow-green: 0 0 30px rgba(20,150,49,0.1);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'DM Sans', sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: var(--green); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--green-dark); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 700px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-sm { padding: 2.5rem 0; }
.section-alt { background: var(--bg-secondary); }

/* ---- Typography ---- */
h1, h2, h3, h4 { font-family: var(--font-heading); }
.italic { font-style: italic; }
.accent { color: var(--green); }

/* ---- Section Header ---- */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header-center { text-align: center; margin-bottom: 3rem; }
.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--green);
  margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}
.green-line {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--green-light));
  border-radius: 2px;
  margin: 1rem 0;
}
.green-line-center { margin: 1rem auto; }

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-logo { text-decoration: none; }
.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  position: relative;
}
.nav-logo-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link svg { width: 14px; height: 14px; }
.nav-link:hover { color: var(--green); background: var(--green-glow); }
.nav-link.active { color: var(--green); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0.75rem; right: 0.75rem;
  height: 2px;
  background: var(--green);
  border-radius: 1px;
}
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  min-width: 180px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 100;
}
.nav-item:hover .nav-dropdown,
.nav-item.dropdown-open .nav-dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-dropdown a:hover { background: var(--green-glow); color: var(--green); }
.nav-actions { display: flex; align-items: center; gap: 0.75rem; margin-left: 1rem; }
.cart-btn-wrap { position: relative; }
.nav-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  font-size: 1.1rem;
  color: var(--text-primary);
  position: relative;
  transition: var(--transition);
}
.nav-icon-btn:hover { border-color: var(--green); background: var(--green-glow); }
.cart-count {
  position: absolute;
  top: -6px; right: -6px;
  width: 18px; height: 18px;
  background: var(--green);
  color: white;
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-cta-nav {
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-cta-nav:hover { color: white; opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(20,150,49,0.3); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: white;
  z-index: 999;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.mobile-nav a:hover, .mobile-nav a.active { color: var(--green); background: var(--green-glow); }
.mobile-nav a.sub { padding-left: 2rem; font-size: 0.875rem; color: var(--text-secondary); }

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary:hover {
  color: white;
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(20,150,49,0.3);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: white;
  color: var(--green);
  border: 1.5px solid var(--green);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-secondary:hover {
  background: var(--green);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(20,150,49,0.2);
}
.btn-add-cart {
  width: 100%;
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: auto;
}
.btn-add-cart:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-add-to-cart-lg {
  width: 100%;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.btn-add-to-cart-lg:hover { opacity: 0.9; box-shadow: 0 8px 24px rgba(20,150,49,0.3); }
.btn-view-coa {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border: 1.5px solid var(--border-green);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--green);
  font-weight: 600;
  transition: var(--transition);
  background: white;
}
.btn-view-coa:hover { background: var(--green-glow); border-color: var(--green); }
.btn-calc {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1rem;
}
.btn-calc:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(20,150,49,0.3); }
.btn-popup-submit {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.75rem;
}
.btn-popup-submit:hover { opacity: 0.9; transform: translateY(-1px); }

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: linear-gradient(160deg, #f0f9f3 0%, #ffffff 50%, #f8f9fa 100%);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20,150,49,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
}
.hero-particles { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.particle {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: floatParticle linear infinite;
}
@keyframes floatParticle {
  0% { transform: translateY(0) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--green-glow);
  border: 1px solid var(--border-green);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 1.5rem;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}
.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-stats {
  display: flex;
  gap: 1rem;
  padding-top: 2rem;
}
.hero-stat-num-old {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--green);
}
.hero-visual { display: flex; align-items: center; justify-content: center; }

/* Hero Bottles */
.hero-bottles { display: flex; gap: 1.5rem; justify-content: center; align-items: flex-end; padding: 2rem 0; }
.hero-bottle { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.bottle-img-wrap {
  width: 90px; height: 140px;
  background: linear-gradient(180deg, #f0f9f3, white);
  border: 2px solid rgba(20,150,49,0.2);
  border-radius: 8px 8px 12px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s;
}
.bottle-img-wrap:hover { transform: translateY(-6px); }
.bottle-label-strip {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: #149631;
  padding: 4px 2px;
  text-align: center;
  font-size: 0.45rem;
  color: white;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.bottle-label-top {
  position: absolute; top: 0; left: 0; right: 0;
  background: rgba(20,150,49,0.08);
  padding: 3px;
  text-align: center;
  font-size: 0.45rem;
  color: #149631;
  font-weight: 600;
}
.hero-bottle-name { font-size: 0.72rem; color: #666; font-weight: 500; text-align: center; }

/* ---- Trust Badges ---- */
.trust-bar {
  background: white;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}
.trust-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.trust-icon {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-glow);
  border-radius: 50%;
  font-size: 0.9rem;
  color: var(--green);
}
.trust-text { font-size: 0.82rem; color: var(--text-secondary); font-weight: 500; }

/* ---- Product Cards ---- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  cursor: pointer;
}
.product-card:hover {
  border-color: var(--green);
  box-shadow: 0 8px 32px rgba(20,150,49,0.12);
  transform: translateY(-3px);
}
.product-img {
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f0f9f3, #f8f9fa);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  position: relative;
}
.product-badge-wrap {
  position: absolute;
  top: 0.75rem; left: 0.75rem;
}
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-popular { background: rgba(20,150,49,0.12); color: var(--green); }
.badge-new { background: rgba(37,99,235,0.1); color: #2563eb; }
.badge-hot { background: rgba(239,68,68,0.1); color: #ef4444; }
.badge-in-stock { background: rgba(20,150,49,0.12); color: var(--green); }
.product-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.4rem;
}
.product-name { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); }
.product-desc { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }
.product-dosage { font-size: 0.72rem; color: var(--text-muted); font-weight: 500; }
.product-price { font-size: 1.05rem; font-weight: 700; color: var(--green); margin-top: 0.25rem; }
.original { font-size: 0.82rem; color: var(--text-muted); text-decoration: line-through; margin-left: 0.4rem; font-weight: 400; }

/* ---- Size Option Buttons ---- */
.size-opt-btn {
  padding: 0.25rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  background: white;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-body);
}
.size-opt-btn:hover { border-color: var(--green); color: var(--green); }
.size-opt-btn.active { border-color: var(--green); background: var(--green); color: white; }
.size-opts { display: flex; flex-wrap: wrap; gap: 0.35rem; }

/* ---- Home Product Slider ---- */
.home-slider-outer {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.home-slider {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  scroll-behavior: smooth;
  flex: 1;
}
.home-slider::-webkit-scrollbar { display: none; }
.home-slider .product-card {
  flex: 0 0 calc(25% - 0.95rem);
  min-width: 220px;
  scroll-snap-align: start;
}
.home-slider-arrow {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: white;
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  z-index: 2;
}
.home-slider-arrow:hover { border-color: var(--green); color: var(--green); background: var(--green-glow); }
.home-product-card .product-body { padding: 0.875rem; gap: 0.3rem; }
.home-product-card .product-name { font-size: 0.875rem; }
.home-product-card .product-desc { font-size: 0.72rem; -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }
.home-product-card .product-price { font-size: 0.95rem; }
.home-product-card .btn-add-cart { padding: 0.6rem; font-size: 0.8rem; }

/* ---- Nav Logo Mark ---- */
.nav-logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.nav-logo-mark { flex-shrink: 0; }
.nav-logo-block { display: flex; flex-direction: column; }
.nav-logo-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  line-height: 1;
}
.nav-logo-thin {
  font-weight: 400;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
}
.nav-logo-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 3px;
}

/* ---- Hero Stat Cards ---- */
.hero-stat-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--border-green);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.25rem;
  text-align: center;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 16px rgba(20,150,49,0.08);
}
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 2rem !important;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.hero-stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .home-slider .product-card { flex: 0 0 calc(50% - 0.625rem); }
}
@media (max-width: 500px) {
  .home-slider .product-card { flex: 0 0 80%; }
  .home-slider-arrow { display: none; }
}

/* ---- Product Slider ---- */
.product-slider-wrap { position: relative; }
.product-slider {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  padding-bottom: 1rem;
}
.product-slider::-webkit-scrollbar { display: none; }
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--green);
  color: var(--green);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  transition: all 0.3s;
}
.slider-btn:hover { background: var(--green); color: white; }
.slider-btn.prev { left: -20px; }
.slider-btn.next { right: -20px; }
.product-slider .product-card { min-width: 240px; flex-shrink: 0; }

/* ---- Shop Layout (Sidebar) ---- */
.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2rem;
  align-items: start;
}
.shop-sidebar {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: sticky;
  top: 90px;
}
.filter-section {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
}
.filter-section:last-child { border-bottom: none; margin-bottom: 0; }
.filter-heading {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #333333;
  margin-bottom: 0.75rem;
}
.filter-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  cursor: pointer;
}
.filter-option input[type="radio"],
.filter-option input[type="checkbox"] { accent-color: var(--green); width: 16px; height: 16px; }
.filter-option label {
  font-size: 0.875rem;
  color: #666666;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.filter-count { font-size: 0.75rem; color: #999; }
.filter-option:hover label { color: var(--green); }
.filter-option input:checked + label { color: var(--green); font-weight: 600; }

/* ---- Features / Why Us Grid ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.feature-icon { font-size: 2rem; margin-bottom: 1rem; }
.feature-title { font-weight: 700; font-size: 1rem; color: var(--text-primary); margin-bottom: 0.5rem; }
.feature-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.65; }

/* ---- FAQ ---- */
.faq-list { display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover, .faq-item.open { border-color: var(--border-green); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--green-glow);
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { background: var(--green); color: white; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
}

/* ---- Page Header ---- */
.page-header {
  padding: calc(var(--nav-height) + 3rem) 0 2.5rem;
  background: linear-gradient(180deg, #f0f9f3, white);
  border-bottom: 1px solid var(--border);
}
.page-header-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 0.5rem;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--green); }
.breadcrumb span { color: var(--text-muted); }

/* ---- Product Page ---- */
.product-page-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.product-gallery-main {
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f0f9f3, #f8f9fa);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  margin-bottom: 1rem;
}
.product-gallery-thumbs { display: flex; gap: 0.75rem; }
.thumb {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, #f0f9f3, #f8f9fa);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}
.thumb.active, .thumb:hover { border-color: var(--green); background: var(--green-glow); }
.product-in-stock { font-size: 0.82rem; color: var(--green); font-weight: 600; display: flex; align-items: center; gap: 5px; }
.product-in-stock::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--green); display: inline-block; }
.product-info-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}
.product-info-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 1rem;
}
.product-disclaimer-box {
  display: flex;
  gap: 0.75rem;
  background: rgba(239,68,68,0.04);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  margin-bottom: 1rem;
}
.product-disclaimer-icon { font-size: 1rem; flex-shrink: 0; }
.product-disclaimer-text { font-size: 0.78rem; color: #dc2626; line-height: 1.5; }

/* Stock Badge */
.stock-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 0.8rem; font-weight: 600; }
.stock-badge.in-stock { color: var(--green); }
.stock-badge.out-of-stock { color: #dc2626; }
.stock-badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; display: inline-block; }

/* Variant Selector */
.variant-group { margin: 1rem 0; }
.variant-label { font-size: 0.8rem; font-weight: 600; color: #333; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.5rem; }
.variant-options { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.variant-btn {
  padding: 0.45rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  font-size: 0.875rem;
  color: #333;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-body);
}
.variant-btn:hover { border-color: var(--green); color: var(--green); }
.variant-btn.active { border-color: var(--green); background: var(--green); color: white; }

/* Expandable Disclaimer Accordion */
.disclaimer-accordion {
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: 8px;
  overflow: hidden;
  margin: 1rem 0;
}
.disclaimer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.1rem;
  background: rgba(239,68,68,0.04);
  cursor: pointer;
  user-select: none;
}
.disclaimer-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #dc2626;
}
.disclaimer-chevron { font-size: 0.8rem; color: #dc2626; transition: transform 0.3s; }
.disclaimer-accordion.open .disclaimer-chevron { transform: rotate(180deg); }
.disclaimer-body { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.disclaimer-accordion.open .disclaimer-body { max-height: 300px; }
.disclaimer-body-inner {
  padding: 0.875rem 1.1rem;
  font-size: 0.82rem;
  color: #666;
  line-height: 1.6;
  border-top: 1px solid rgba(239,68,68,0.1);
}

/* BAC Water Box */
.bac-water-box {
  display: flex;
  gap: 0.75rem;
  background: rgba(20,150,49,0.04);
  border: 1px solid var(--border-green);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  margin: 1rem 0;
}
.bac-water-text { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; }
.bac-water-text a { color: var(--green); font-weight: 600; }
.bac-water-text strong { color: var(--green); }

/* Qty Control */
.qty-control {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
}
.qty-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  color: var(--text-primary);
  cursor: pointer;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: var(--transition);
}
.qty-btn:hover { background: var(--green-glow); color: var(--green); }
.qty-num { font-weight: 700; min-width: 24px; text-align: center; font-size: 1rem; }

/* Product Highlights */
.product-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.5rem 0;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.highlight-check { color: var(--green); font-weight: 700; }

/* Product Tabs */
.product-tabs-wrap { margin-top: 1.5rem; }
.product-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  gap: 0;
  overflow-x: auto;
}
.product-tab {
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  margin-bottom: -1px;
}
.product-tab:hover { color: var(--green); }
.product-tab.active { color: var(--green); border-bottom-color: var(--green); }
.tab-content { display: none; padding: 1.5rem 0; }
.tab-content.active { display: block; }
.tab-content p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 0.75rem; }
.tab-content ul { padding-left: 1rem; }
.tab-content li { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 0.25rem; }
.tab-content strong { color: var(--text-primary); }

/* Upsell Grid */
.upsell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}
.upsell-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  transition: var(--transition);
}
.upsell-card:hover { border-color: var(--green); box-shadow: var(--shadow-card); }
.upsell-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.upsell-name { font-weight: 700; font-size: 0.85rem; color: var(--text-primary); margin-bottom: 0.25rem; }
.upsell-price { font-size: 0.9rem; font-weight: 700; color: var(--green); margin-bottom: 0.75rem; }
.btn-upsell-add {
  width: 100%;
  padding: 0.5rem;
  background: white;
  border: 1.5px solid var(--green);
  border-radius: var(--radius-sm);
  color: var(--green);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.btn-upsell-add:hover { background: var(--green); color: white; }

/* ---- Calculator ---- */
.calculator-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}
.calc-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.calc-subtitle { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 2rem; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.calc-group { display: flex; flex-direction: column; gap: 0.5rem; }
.calc-label { font-size: 0.8rem; font-weight: 700; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.06em; }
.calc-select, .calc-input {
  padding: 0.75rem 1rem;
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
  appearance: none;
  width: 100%;
}
.calc-select:focus, .calc-input:focus { border-color: var(--green); }

/* Calculator Visual Layout */
.calc-visual-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  max-width: 960px;
  margin: 0 auto;
}
.calc-inputs-section {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}
.calc-results-section {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}
.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.calc-input-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #333;
}
.calc-option-buttons { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.calc-option-btn {
  padding: 0.4rem 0.9rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  font-size: 0.82rem;
  color: #555;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-body);
}
.calc-option-btn:hover { border-color: var(--green); color: var(--green); }
.calc-option-btn.active { border-color: var(--green); background: var(--green); color: white; }

/* Syringe Visual */
.syringe-visual { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; margin: 1.5rem 0; }
.syringe-container { position: relative; width: 60px; height: 200px; }
.syringe-body {
  width: 20px; height: 160px;
  border: 2px solid #ccc;
  border-radius: 10px;
  background: #f5f5f5;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.syringe-fill {
  position: absolute; bottom: 0; width: 100%;
  background: linear-gradient(to top, var(--green), var(--green-light));
  border-radius: 0 0 8px 8px;
  transition: height 0.5s ease;
}
.syringe-plunger { width: 26px; height: 8px; background: #999; border-radius: 3px; margin: 0 auto; }
.syringe-tip { width: 6px; height: 20px; background: #ccc; margin: 0 auto; border-radius: 0 0 3px 3px; }
.visual-label { font-size: 0.75rem; color: #666; text-align: center; font-weight: 500; }
.vial-visual { display: flex; align-items: center; justify-content: center; gap: 1rem; margin: 1rem 0; }
.vial-icon {
  width: 50px; height: 80px;
  border: 2px solid var(--green);
  border-radius: 6px 6px 8px 8px;
  background: linear-gradient(180deg, #e8f5ec, white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  text-align: center;
  color: var(--green);
  font-weight: 700;
  padding: 4px;
  line-height: 1.2;
  position: relative;
  overflow: hidden;
}
.vial-icon::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 18px;
  background: var(--green);
  opacity: 0.15;
}
.bac-vial {
  width: 44px; height: 70px;
  border: 2px solid #2563eb;
  border-radius: 6px 6px 8px 8px;
  background: linear-gradient(180deg, #eff6ff, white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  color: #2563eb;
  font-weight: 700;
  text-align: center;
  padding: 4px;
}

/* Calc Warning / Result */
.calc-warning {
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  font-size: 0.82rem;
  color: #dc2626;
  margin-top: 1rem;
  display: none;
}
.calc-result {
  background: var(--green-glow);
  border: 1px solid var(--border-green);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1.5rem;
}
.calc-result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}
.calc-result-item { text-align: center; }
.calc-result-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--green);
}
.calc-result-label { font-size: 0.72rem; color: var(--text-secondary); margin-top: 0.25rem; }
.calc-tip {
  font-size: 0.78rem;
  color: var(--text-secondary);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-green);
  line-height: 1.6;
}

/* ---- Newsletter ---- */
.newsletter-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

/* ---- Footer ---- */
.footer {
  background: #111111;
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.25rem;
}
.footer-brand-text span { color: var(--green-light); }
.footer-brand-sub {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1rem;
}
.footer-desc { font-size: 0.82rem; line-height: 1.7; color: rgba(255,255,255,0.5); margin-bottom: 1.5rem; }
.footer-social { display: flex; gap: 0.75rem; }
.social-btn {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition);
  color: rgba(255,255,255,0.7);
}
.social-btn:hover { background: var(--green); color: white; }
.footer-heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: white;
  margin-bottom: 1.25rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { font-size: 0.82rem; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-links a:hover { color: var(--green-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.4); }
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { font-size: 0.78rem; color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-bottom-links a:hover { color: var(--green-light); }
.footer-disclaimer {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  line-height: 1.6;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.25rem;
}

/* ---- Popup ---- */
.popup-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.popup-overlay.hidden { display: none; }
.popup-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.15);
  border: 1px solid var(--border);
}
.popup-logo { text-align: center; margin-bottom: 1.25rem; }
.popup-logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}
.popup-logo-text span { color: var(--green); }
.popup-tagline { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-muted); margin-top: 2px; }
.popup-divider { height: 1px; background: var(--border); margin: 1.25rem 0; }
.popup-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-align: center;
}
.popup-subtitle { font-size: 0.82rem; color: var(--text-secondary); text-align: center; margin-bottom: 1.5rem; }

/* Popup Tabs */
.popup-tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.popup-tab-btn {
  flex: 1;
  padding: 0.75rem;
  background: none;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: #666;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  margin-bottom: -1px;
  font-family: var(--font-body);
}
.popup-tab-btn.active { color: var(--green); border-bottom-color: var(--green); }
.popup-form-panel { display: none; }
.popup-form-panel.active { display: block; }

/* Form Inputs */
.form-group { margin-bottom: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}
.form-input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(20,150,49,0.08); }
.form-input::placeholder { color: var(--text-muted); }
.form-input.error { border-color: var(--error); }
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.checkbox-group input[type="checkbox"] { accent-color: var(--green); width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }
.checkbox-label { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.5; }
.checkbox-label a { color: var(--green); }

/* ---- Tags / Chips ---- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  background: var(--green-glow);
  color: var(--green);
  border: 1px solid var(--border-green);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 99999;
  animation: toastIn 0.3s ease;
  white-space: nowrap;
}
.toast.success { border-left: 3px solid var(--green); color: var(--text-primary); }
.toast.error { border-left: 3px solid var(--error); color: var(--text-primary); }
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(1rem); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* ---- Chat Button ---- */
.chat-btn-placeholder {
  position: fixed;
  bottom: 1.5rem; right: 1.5rem;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(20,150,49,0.35);
  z-index: 9000;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-btn-placeholder:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(20,150,49,0.4); }

/* ---- Step Numbers ---- */
.step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--green-glow);
  border: 2px solid var(--border-green);
  color: var(--green);
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Policy / Info Box */
.policy-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Particles for hero ---- */
.particle {
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: rgba(20,150,49,0.4);
}

/* ---- Supply card emoji container ---- */
.supply-emoji-wrap {
  width: 80px; height: 80px;
  background: white;
  border: 2px solid var(--border-green);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  margin: 0 auto;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .shop-layout { grid-template-columns: 1fr; }
  .shop-sidebar { position: static; }
  .calc-visual-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-content { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { display: none; }
}

@media (max-width: 768px) {
  .nav-menu, .nav-actions { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .product-page-layout { grid-template-columns: 1fr; gap: 2rem; }
  .calc-grid { grid-template-columns: 1fr; }
  .calc-result-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-stats { gap: 1.5rem; }
  .section { padding: 3rem 0; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .slider-btn.prev { left: 0; }
  .slider-btn.next { right: 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .popup-box { padding: 1.75rem 1.25rem; }
  .hero-title { font-size: 2rem; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .hero-bottles { gap: 0.75rem; }
  .bottle-img-wrap { width: 70px; height: 110px; }
}