/* ============================================================
   Zhuofan E-Juice — Main Stylesheet
   ============================================================ */

/* ---- CSS Variables (easy color/font changes) ---- */
:root {
  --primary: #111111;
  --primary-dark: #000000;
  --primary-light: #333333;
  --accent: #111111;
  --accent-dark: #000000;
  --bg-dark: #ffffff;
  --bg-darker: #f5f5f5;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0f0;
  --text-primary: #111111;
  --text-secondary: #555555;
  --text-muted: #888888;
  --border: #e0e0e0;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --sale: #ef4444;
  --gradient-1: #111111;
  --gradient-2: #111111;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: #111111;
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: #333333;
}

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

section {
  padding: 80px 0;
}

/* ---- AGE VERIFICATION MODAL ---- */
.age-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.age-modal-overlay.hidden {
  display: none;
}

.age-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.age-modal h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.age-modal p {
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.7;
}

.age-modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.age-modal-buttons button {
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-confirm-age {
  background: #111111;
  color: white;
}

.btn-confirm-age:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-deny-age {
  background: #ffffff;
  color: var(--text-secondary);
  border: 1px solid var(--border) !important;
}

.btn-deny-age:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger) !important;
}

/* ---- NAVIGATION ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  padding: 10px 0;
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #111111;
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

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

.nav-cta {
  background: #111111 !important;
  -webkit-background-clip: unset !important;
  -webkit-text-fill-color: white !important;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  color: white !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---- HERO SECTION ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: #111111;
  color: white;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: #111111;
  color: #111111;
  transform: translateY(-3px);
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrapper {
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: #111111;
  padding: 4px;
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 2px dashed #cccccc;
  opacity: 0.3;
  animation: spin 20s linear infinite;
}

.hero-image-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  overflow: hidden;
}

.hero-image-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badges {
  display: flex;
  gap: 20px;
  margin-top: 36px;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.hero-badge i {
  color: var(--success);
  font-size: 1.1rem;
}

/* ---- FEATURES / WHY CHOOSE US ---- */
.features {
  background: var(--bg-darker);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: #111111;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #111111;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.4rem;
  color: white;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---- PRODUCTS ---- */
.products-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 22px;
  border: 1px solid var(--border);
  border-radius: 50px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: #111111;
  color: white;
  border-color: transparent;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #111111;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  z-index: 2;
  background: var(--primary);
  color: white;
}

.product-badge.sale {
  background: var(--sale);
}

.product-badge.new {
  background: var(--success);
}

.product-image {
  width: 100%;
  height: 220px;
  background: var(--bg-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-image .placeholder-icon {
  font-size: 3rem;
  color: var(--text-muted);
}

.product-info {
  padding: 20px;
}

.product-info h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.product-info .product-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 12px;
  line-height: 1.5;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

.product-rating .stars {
  color: var(--warning);
  font-size: 0.85rem;
}

.product-rating .rating-text {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.product-pricing {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.product-pricing .price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.product-pricing .original-price {
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.product-pricing .sale-price {
  color: var(--sale);
}

.product-actions {
  display: flex;
  gap: 8px;
}

.product-actions .btn {
  flex: 1;
  justify-content: center;
  padding: 10px 16px;
  font-size: 0.85rem;
}

.btn-cart {
  background: #111111;
  color: white;
  border: none;
}

.btn-cart:hover {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  color: white;
}

.btn-quick-view {
  background: #f5f5f5;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-quick-view:hover {
  border-color: #111111;
  color: #111111;
}

/* ---- ABOUT US ---- */
.about {
  background: var(--bg-darker);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  height: 450px;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image .placeholder-icon {
  font-size: 5rem;
  color: var(--text-muted);
}

.about-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
  padding: 16px 8px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.stat-item .stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---- TESTIMONIALS ---- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: #111111;
  transform: translateY(-4px);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #111111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: white;
  overflow: hidden;
  flex-shrink: 0;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-info h4 {
  font-size: 1rem;
}

.testimonial-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.testimonial-stars {
  color: var(--warning);
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.testimonial-card p {
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.7;
}

/* ---- FAQ ---- */
.faq {
  background: var(--bg-darker);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--bg-card);
  transition: border-color var(--transition);
}

.faq-item:hover,
.faq-item.open {
  border-color: #111111;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}

.faq-question i {
  transition: transform var(--transition);
  color: #111111;
  flex-shrink: 0;
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ---- BLOG ---- */
.blog-loading {
  text-align: center;
  padding: 40px 0;
  color: var(--text-muted);
  font-size: 1rem;
}

.blog-loading i {
  margin-right: 8px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: #111111;
  box-shadow: var(--shadow-lg);
}

.blog-image {
  height: 200px;
  background: var(--bg-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-image .placeholder-icon {
  font-size: 2.5rem;
  color: var(--text-muted);
}

.blog-image-fallback {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.85);
}

.blog-image-fallback i {
  font-size: 2rem;
  opacity: 0.6;
}

.blog-image-fallback span {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.blog-content {
  padding: 24px;
}

.blog-date {
  font-size: 0.8rem;
  color: #111111;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.blog-source {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-darker);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid var(--border);
}

.blog-content h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-link {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.blog-link:hover i {
  transform: translateX(4px);
}

.blog-link i {
  transition: transform var(--transition);
}

/* ---- NEWSLETTER ---- */
.newsletter {
  background: var(--bg-darker);
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  inset: 0;
  background: none;
}

.newsletter .container {
  position: relative;
  z-index: 1;
}

.newsletter-box {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-box h2 {
  font-size: 2rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.newsletter-box p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}

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

.newsletter-form input:focus {
  border-color: #111111;
}

.newsletter-form button {
  padding: 14px 28px;
  background: #111111;
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.newsletter-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ---- FOOTER ---- */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin: 16px 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: #111111;
  border-color: transparent;
  color: white;
  transform: translateY(-3px);
}

.footer-column h4 {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: all var(--transition);
}

.footer-column a:hover {
  color: #111111;
  padding-left: 6px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-contact-item i {
  color: #111111;
  margin-top: 3px;
  width: 16px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links a:hover {
  color: #111111;
}

/* ---- BACK TO TOP ---- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #111111;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
  z-index: 100;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ---- ANIMATIONS ---- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- NAV CART ICON ---- */
.nav-cart-link {
  position: relative;
  color: var(--text-primary) !important;
  -webkit-text-fill-color: var(--text-primary) !important;
  font-size: 1.2rem;
  padding: 6px;
  transition: opacity var(--transition);
}

.nav-cart-link:hover {
  opacity: 0.7;
}

.nav-cart-link::after {
  display: none !important;
}

.nav-cart-link .cart-count {
  position: absolute;
  top: -4px;
  right: -10px;
  background: #ef4444;
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-text-fill-color: white !important;
  padding: 0;
  margin: 0;
}

/* ---- CART PAGE ---- */
.cart-page {
  padding-top: 100px;
  padding-bottom: 80px;
  min-height: 80vh;
}

.cart-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.cart-empty {
  text-align: center;
  padding: 60px 20px;
}

.cart-empty i {
  font-size: 4rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.cart-empty h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.cart-empty p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 32px;
}

.cart-table th {
  text-align: left;
  padding: 14px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border);
}

.cart-table td {
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.cart-item-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-item-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--bg-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

.cart-item-thumb i {
  font-size: 1.3rem;
  color: var(--text-muted);
}

.cart-item-name {
  font-weight: 600;
  color: var(--text-primary);
}

.cart-item-name a {
  color: var(--text-primary);
}

.cart-item-name a:hover {
  text-decoration: underline;
}

.cart-qty {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  width: fit-content;
}

.cart-qty button {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-darker);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cart-qty button:hover {
  background: #111111;
  color: white;
}

.cart-qty span {
  width: 40px;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.cart-item-price,
.cart-item-total {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.cart-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 6px;
  transition: color var(--transition);
}

.cart-remove:hover {
  color: var(--danger);
}

.cart-bottom {
  display: flex;
  justify-content: flex-end;
}

.cart-summary {
  width: 360px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.cart-summary h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.cart-summary-row.total {
  border-top: 2px solid var(--border);
  margin-top: 8px;
  padding-top: 16px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.cart-summary .btn {
  width: 100%;
  justify-content: center;
  margin-top: 20px;
  padding: 16px;
  font-size: 1rem;
}

.cart-continue {
  display: block;
  text-align: center;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.cart-continue:hover {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .cart-table th:nth-child(2),
  .cart-table td:nth-child(2) {
    display: none;
  }
  .cart-bottom {
    justify-content: stretch;
  }
  .cart-summary {
    width: 100%;
  }
  .cart-item-thumb {
    width: 48px;
    height: 48px;
  }
}

@media (max-width: 480px) {
  .cart-table th:nth-child(4),
  .cart-table td:nth-child(4) {
    display: none;
  }
}

/* ---- CHECKOUT PAGE ---- */
.checkout-page {
  padding-top: 100px;
  padding-bottom: 80px;
  min-height: 80vh;
}

.checkout-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
}

.checkout-form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
}

.checkout-form-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-row.full {
  grid-template-columns: 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  border-color: #111111;
}

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

.form-group .required {
  color: #ef4444;
}

.form-error {
  display: block;
  color: #ef4444;
  font-size: 0.8rem;
  margin-top: 6px;
  font-weight: 500;
}

.input-error {
  border-color: #ef4444 !important;
}

.checkout-order-summary {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: 100px;
}

.checkout-order-summary h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.checkout-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.checkout-item-name {
  color: var(--text-secondary);
}

.checkout-item-name span {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.checkout-item-price {
  font-weight: 600;
  color: var(--text-primary);
}

.checkout-place-order {
  width: 100%;
  justify-content: center;
  margin-top: 20px;
  padding: 16px;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .checkout-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .checkout-order-summary {
    position: static;
  }
}

/* ---- PRODUCT DETAIL PAGE ---- */
.product-detail {
  padding-top: 100px;
  padding-bottom: 80px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 32px;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--text-primary);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.product-detail-image {
  background: var(--bg-darker);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-image .placeholder-icon {
  font-size: 5rem;
  color: var(--text-muted);
}

.product-detail-badge {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  background: #111111;
  color: white;
  margin-bottom: 12px;
}

.product-detail-badge.sale {
  background: var(--sale);
}

.product-detail-badge.new {
  background: var(--success);
}

.product-detail-name {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.product-detail-rating {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.product-detail-rating .stars {
  color: var(--warning);
  font-size: 1rem;
}

.product-detail-rating .rating-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.product-detail-pricing {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.product-detail-pricing .price {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
}

.product-detail-pricing .original-price {
  font-size: 1.1rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.product-detail-pricing .sale-price {
  color: var(--sale);
}

.product-detail-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.product-detail-options {
  margin-bottom: 32px;
}

.option-group {
  margin-bottom: 20px;
}

.option-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.option-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.option-btn {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.option-btn:hover {
  border-color: #111111;
  color: #111111;
}

.option-btn.active {
  background: #111111;
  color: white;
  border-color: #111111;
}

.product-detail-actions .btn {
  padding: 16px 40px;
  font-size: 1.05rem;
}

@media (max-width: 768px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .product-detail-image {
    height: 320px;
  }
  .product-detail-name {
    font-size: 1.8rem;
  }
}

/* ---- CART BADGE ---- */
.cart-count {
  background: #ef4444;
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 50px;
  margin-left: 8px;
  -webkit-text-fill-color: white !important;
}

/* ---- TOAST NOTIFICATION ---- */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #111111;
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: all 0.4s ease;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 2.4rem;
  }
  .hero-content p {
    margin: 0 auto 36px;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-badges {
    justify-content: center;
  }
  .hero-image-wrapper {
    width: 280px;
    height: 280px;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #ffffff;
    flex-direction: column;
    padding: 80px 30px 30px;
    gap: 20px;
    transition: right var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  .nav-links.open {
    right: 0;
  }
  .mobile-toggle {
    display: block;
    z-index: 1001;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .newsletter-form {
    flex-direction: column;
  }
  .section-header h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2rem;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---- CONTACT PAGE ---- */
.contact-hero {
  padding: 140px 0 60px;
  background: var(--bg-darker);
  text-align: center;
}

.contact-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.contact-hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--text-primary);
}

.breadcrumb i {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.breadcrumb span {
  color: var(--text-primary);
  font-weight: 600;
}

.contact-page {
  padding: 60px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px;
}

.contact-info-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info-intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 28px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #111111;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.contact-info-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-info-item a {
  color: var(--text-secondary);
}

.contact-info-item a:hover {
  color: #111111;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px;
}

.contact-form-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-form-card > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-form .form-row.full {
  grid-template-columns: 1fr;
}

.contact-form .form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
  border-color: #111111;
}

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

.contact-form .required {
  color: #ef4444;
}

.contact-form .btn-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1rem;
  margin-top: 8px;
}

.phone-input-group {
  display: flex;
  gap: 8px;
}

.phone-code-select {
  width: 180px;
  flex-shrink: 0;
  padding: 12px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}

.phone-code-select:focus {
  border-color: #111111;
}

.phone-input-group input[type="tel"] {
  flex: 1;
  min-width: 0;
}

.country-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}

.country-select:focus {
  border-color: #111111;
}

/* ---- CONTACT MAP ---- */
.contact-map {
  padding: 0;
}

.contact-map-inner {
  width: 100%;
  height: 400px;
  background: var(--bg-darker);
}

.contact-map-inner iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.static-map-link {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  transition: background 0.3s;
}

.static-map-link:hover .map-placeholder {
  background: linear-gradient(135deg, #e8e8e8 0%, #ddd 100%);
}

.map-placeholder i.fa-map-marked-alt {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 16px;
}

.map-placeholder .map-address {
  font-size: 1.05rem;
  color: #333;
  margin-bottom: 16px;
  text-align: center;
  max-width: 500px;
  line-height: 1.6;
}

.map-placeholder .map-cta {
  display: inline-block;
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: opacity 0.3s;
}

.static-map-link:hover .map-cta {
  opacity: 0.85;
}

@media (max-width: 768px) {
  .contact-hero {
    padding: 120px 0 40px;
  }
  .contact-hero h1 {
    font-size: 2rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .contact-form .form-row {
    grid-template-columns: 1fr;
  }
  .contact-map-inner {
    height: 300px;
  }
}