:root {
  --bg-color: #fdfbf7;
  --text-color: #1a1a1a;
  --accent-color: #c08b5c;
  --button-bg: #1a1a1a;
  --button-text: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.7);
  --border-color: rgba(0, 0, 0, 0.05);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --glass-bg: rgba(255, 255, 255, 0.4);
  --glass-border: rgba(255, 255, 255, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

#liquid-ether {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -10;
  pointer-events: none;
}

h1, h2, h3, h4, .brand-logo {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.02em;
}

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

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-4 { gap: 2rem; }

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--button-bg);
  color: var(--button-text);
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-weight: 500;
  border-radius: 40px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  border: none;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.btn-outline {
  background: transparent;
  color: var(--text-color);
  border: 1px solid var(--text-color);
}
.btn-outline:hover {
  background: var(--text-color);
  color: #fff;
}

/* Navbar */
.navbar {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
}
.brand-logo {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Hero Section */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('./assets/hero.png') center/cover no-repeat;
  opacity: 1;
  z-index: -1;
  /* Soft white gradient for text readability */
  mask-image: linear-gradient(to right, black 30%, transparent 80%);
  -webkit-mask-image: linear-gradient(to right, black 30%, transparent 80%);
}
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.7) 20%, transparent 100%);
    z-index: -1;
}
.hero-content {
  max-width: 700px;
  animation: heroSlideUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  will-change: transform, opacity;
}
.hero h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #111;
}
.hero p {
  font-size: 1.2rem;
  color: #555;
  margin-bottom: 2rem;
}

/* Trust Bar [Social Proof] */
.trust-bar {
  background: #f5f5f5;
  padding: 1.5rem 0;
  border-bottom: 1px solid #eee;
}
.trust-bar-grid {
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.trust-bar-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.95rem;
  color: #444;
}
.trust-icon {
  width: 20px;
  height: 20px;
  fill: #333;
}
.trust-bar-item b, .trust-bar-item strong {
  color: #000;
  font-weight: 700;
}

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

/* Section Title */
.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Products */
.products {
  padding: 6rem 0;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.products,
.use-cases,
.story,
.footer {
  content-visibility: auto;
  contain-intrinsic-size: 0 500px;
}

.product-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
  cursor: pointer;
  display: block;
  text-decoration: none;
  color: inherit;
  will-change: transform;
}
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  background: rgba(255, 255, 255, 0.8);
}
.product-image-container {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
  background: #fff;
}
.product-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.5rem;
  transition: opacity 0.5s ease;
}
.hover-img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}
.product-card:hover .base-img {
  opacity: 0;
}
.product-card:hover .hover-img {
  opacity: 1;
}
.product-info {
  padding: 1.5rem;
  text-align: center;
}
.product-info h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.product-info p {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

/* Trust Section */
.trust {
  background: var(--glass-bg);
  padding: 5rem 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(5px);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}
.trust-item h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.trust-item p {
  color: #666;
  font-size: 0.9rem;
}

/* Use Cases */
.use-cases {
  padding: 6rem 0;
}
.use-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.use-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

/* Visual Use Case Grid */
.use-grid-visual {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}
.use-card-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0,0,0,0.04);
  transition: transform 0.4s ease;
  border: 1px solid #f0f0f0;
}
.use-card-visual:hover {
  transform: translateY(-8px);
}
.use-img-wrapper {
  width: 100%;
  height: 280px;
  overflow: hidden;
}
.use-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.use-card-visual:hover .use-img {
  transform: scale(1.05);
}
.use-content-visual {
  padding: 2rem;
  padding-top: 0.5rem;
}
.use-content-visual h3 {
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
  letter-spacing: -0.5px;
}
.use-content-visual p {
  color: #666;
  font-size: 1rem;
}
.use-content-visual b, .use-content-visual strong {
  color: #000;
}

/* Story */
.story {
  padding: 8rem 0;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.story-image {
  position: relative;
}
.story-img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}
.story-quote {
  font-size: 2rem;
  font-style: italic;
  font-family: var(--font-heading);
  color: #111;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}
.story-text {
  font-size: 1.1rem;
  color: #555;
  line-height: 1.8;
}

/* Social Proof */
.social-proof {
  padding: 5rem 0;
  background: #fff;
  text-align: center;
  border-top: 1px solid var(--border-color);
}
.social-proof h2 {
  margin-bottom: 2rem;
}
.testimonial {
  font-size: 1.5rem;
  color: var(--accent-color);
}

/* Footer */
.footer {
  padding: 4rem 0;
  border-top: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}
.footer-col h4 {
  margin-bottom: 1rem;
  color: #111;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 0.5rem;
  color: #666;
  cursor: pointer;
  transition: color 0.3s;
}
.footer-col ul li:hover {
  color: var(--accent-color);
}
.cod-badge {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 0.8rem;
  color: #666;
  margin-top: 1rem;
}

/* Product Page Specific */
.product-detail-section {
  padding: 4rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.product-gallery img {
  width: 100%;
  height: auto;
  max-height: 750px;
  object-fit: contain;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
}
.product-meta h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.product-price {
  font-size: 1.5rem;
  color: #444;
  margin-bottom: 2rem;
}
.variant-selector {
  margin-bottom: 2rem;
}
.variant-btn {
  padding: 0.8rem 1.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  color: #111;
  border-radius: 4px;
  margin-right: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}
.variant-btn.active {
  border-color: #111;
  background: #111;
  color: #fff;
}
.benefits-list {
  margin: 2rem 0;
  list-style-type: none;
}
.benefits-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  color: #555;
}
.benefits-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}
.ingredients-box {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
}

/* Navbar Cart */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.cart-icon {
  position: relative;
  cursor: pointer;
  padding: 0.5rem;
}
.cart-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--text-color);
  stroke-width: 2;
}
.cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--accent-color);
  color: #fff;
  font-size: 0.7rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border: 1px solid var(--bg-color);
}

/* Cart Drawer */
.cart-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100%;
  background: #fff;
  z-index: 1000;
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}
.cart-drawer.open {
  right: 0;
}
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}
.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.close-cart {
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.5rem;
  font-weight: 300;
}
.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}
.cart-empty {
  text-align: center;
  margin-top: 3rem;
  color: #888;
}
.cart-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}
.cart-item-img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  background: #f9f9f9;
  border-radius: 4px;
}
.cart-item-info {
  flex: 1;
}
.cart-item-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}
.cart-item-price {
  color: #666;
  font-size: 0.85rem;
}
.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 0.5rem;
}
.qty-btn {
  width: 24px;
  height: 24px;
  border: 1px solid #ddd;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}
.cart-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: #fafafa;
}
.cart-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  color: #555;
  font-size: 0.9rem;
}
.cart-summary-total {
  display: flex;
  justify-content: space-between;
  margin: 1rem 0;
  font-weight: 700;
  font-size: 1.1rem;
  color: #111;
}

/* Checkout Form Styles */
.checkout-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}
.form-group input, 
.form-group textarea, 
.form-group select,
.form-row input {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #eee;
  border-radius: 8px;
  background: #fdfdfd;
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.3s ease;
}
.form-group textarea {
  min-height: 80px;
  resize: vertical;
}
.form-group input:focus, 
.form-group textarea:focus, 
.form-group select:focus {
  outline: none;
  border-color: #c08b5c;
}
.form-row {
  display: flex;
  gap: 1rem;
}
.payment-methods {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 2rem;
}
.payment-option {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem;
  border: 1px solid #eee;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.payment-option:hover {
  background: #f9f9f9;
}
.payment-option input[type="radio"] {
  accent-color: #c08b5c;
  width: 18px;
  height: 18px;
}
.payment-option span {
  font-size: 0.9rem;
  color: #333;
}
#checkout-actions {
  display: flex;
  gap: 10px;
  margin-top: 1rem;
}
#cart-step-success h3 {
  color: #111;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

/* Auth Tabs & Forms */
.auth-tabs {
  display: flex;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid #eee;
}
.auth-tab {
  flex: 1;
  padding: 1rem;
  border: none;
  background: none;
  cursor: pointer;
  font-weight: 600;
  color: #888;
  transition: all 0.3s ease;
}
.auth-tab.active {
  color: var(--accent-color);
  border-bottom: 2px solid var(--accent-color);
}
.auth-form {
  transition: opacity 0.3s ease;
}
.user-profile-bar {
  padding: 0.8rem 1.5rem;
  background: #f9f9f9;
  border-bottom: 1px solid #eee;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logout-btn {
  color: #e74c3c;
  cursor: pointer;
  font-weight: 600;
}

/* Responsive Cart */
@media (max-width: 450px) {
  .cart-drawer {
    width: 100%;
    right: -100%;
  }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .use-grid { grid-template-columns: 1fr; }
  .use-grid-visual { grid-template-columns: 1fr; gap: 2rem; }
  .trust-bar-grid { flex-direction: column; gap: 1rem; text-align: center; }
  .trust-grid { grid-template-columns: 1fr; gap: 1rem; }
  .story-grid { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .story-content h2 { text-align: center !important; }
  .product-detail-section { grid-template-columns: 1fr; }
  .footer-grid { flex-direction: column; }
}