/* ============================================
   MBAR Vape — New Frontend Styles
   Design Reference: RELX Japan (Minimalist JP)
   Color: Monochrome + Subtle Warm Accent
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f5;
  --color-bg-tertiary: #fafafa;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;
  --color-border: #e5e5e5;
  --color-border-light: #f0f0f0;
  --color-accent: #1a1a1a;
  --color-accent-hover: #333333;
  --color-sale: #c41230;
  --color-success: #2d8a56;
  
  --font-heading: 'Helvetica Neue', 'Arial', 'Noto Sans Thai', sans-serif;
  --font-body: 'Helvetica Neue', 'Arial', 'Noto Sans Thai', sans-serif;
  
  --container-max: 1280px;
  --container-padding: clamp(1rem, 5vw, 2.5rem);
  --section-spacing: clamp(3rem, 8vw, 6rem);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --transition-fast: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --- Typography --- */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-text);
  background: var(--color-bg-secondary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: var(--color-bg-secondary);
}

.btn-sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--color-border-light);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.header-logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.header-logo span {
  font-weight: 300;
  color: var(--color-text-secondary);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.header-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--color-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --- Language Dropdown --- */
.lang-dropdown {
  position: relative;
  display: inline-block;
}

.lang-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
  line-height: 1;
}

.lang-dropdown-trigger:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

.lang-dropdown-trigger .lang-trigger-arrow {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.lang-dropdown.open .lang-dropdown-trigger .lang-trigger-arrow {
  transform: rotate(180deg);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
  padding: 0.3rem 0;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1000;
}

.lang-dropdown.open .lang-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.lang-dropdown-item:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.lang-dropdown-item.active {
  color: var(--color-text);
  font-weight: 600;
}

.lang-dropdown-item .lang-item-code {
  font-weight: 600;
  min-width: 28px;
  font-size: 0.72rem;
  color: var(--color-text);
  opacity: 0.7;
}

.lang-dropdown-item.active .lang-item-code {
  opacity: 1;
}

.lang-dropdown-item .lang-item-check {
  margin-left: auto;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.lang-dropdown-item.active .lang-item-check {
  opacity: 1;
}

/* --- User Button --- */
.user-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.user-btn:hover {
  background: var(--color-bg-secondary);
}

.user-btn svg {
  width: 20px;
  height: 20px;
}

/* --- LINE Floating Button --- */
.line-float {
  position: fixed;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  z-index: 90;
  display: none; /* show on mobile/tablet */
}

.line-float a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  padding: 0;
  background: #06c755; /* LINE green */
  color: #ffffff;
  border-radius: 14px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 3px 14px rgba(6,199,85,0.4);
  animation: linePulse 2.5s ease-in-out infinite;
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  line-height: 1.1;
}

.line-float a svg {
  width: 22px;
  height: 22px;
  margin-bottom: 1px;
}

.line-float a:hover {
  background: #05a947;
  box-shadow: 0 5px 22px rgba(6,199,85,0.5);
  transform: scale(1.08);
}

@keyframes linePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}

.cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.cart-btn:hover {
  background: var(--color-bg-secondary);
}

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 1;
  background: #ef4444;
  color: #fff;
  border-radius: 999px;
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity var(--transition-fast), transform var(--transition-bounce);
}
.cart-count.visible {
  opacity: 1;
  transform: scale(1);
}
.cart-count.updated {
  animation: cartBadgePop 0.3s ease;
}
@keyframes cartBadgePop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* --- Mobile Menu (Left Sidebar) --- */
.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 98;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.menu-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  background: var(--color-bg);
  z-index: 99;
  padding: 90px 1.75rem 2rem;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-smooth);
  box-shadow: none;
}

.mobile-menu.active {
  transform: translateX(0);
  box-shadow: 4px 0 30px rgba(0,0,0,0.12);
}

.mobile-menu-close {
  position: absolute;
  top: 18px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.mobile-menu-close:hover {
  background: var(--color-border-light);
}

.mobile-menu-close svg {
  width: 18px;
  height: 18px;
}

.mobile-menu .menu-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 0;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu .menu-user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mobile-menu .menu-user-avatar svg {
  width: 22px;
  height: 22px;
  color: var(--color-text-tertiary);
}

.mobile-menu .menu-user-info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.mobile-menu .menu-user-info p {
  font-size: 0.78rem;
  color: var(--color-text-tertiary);
}

.mobile-menu a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 0;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-menu a:hover {
  color: #06c755; /* LINE green */
  padding-left: 4px;
}

.mobile-menu a svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
}

/* Hamburger animation */
.mobile-menu-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,0.3) 50%,
    rgba(255,255,255,0.9) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 4rem 0;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 100px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* --- USP Section --- */
.usp-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

.usp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.usp-card {
  text-align: center;
  padding: 2rem 1.5rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.usp-card:hover {
  border-color: var(--color-border);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px rgba(0,0,0,0.06);
}

.usp-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  border-radius: 50%;
}

.usp-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-text);
}

.usp-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.usp-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --- Featured Products --- */
.featured-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg-tertiary);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header .view-all {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.section-header .view-all:hover {
  color: var(--color-text);
}

.section-header .view-all svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.section-header .view-all:hover svg {
  transform: translateX(3px);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* --- Product Card --- */
.product-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
  border: 1px solid transparent;
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--color-border-light);
  box-shadow: 0 16px 48px -16px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.product-card-image {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1.5rem;
  transition: transform var(--transition-smooth);
}

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

/* Quick add button on card hover (desktop) */
.product-card-quickadd {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  right: 0.75rem;
  padding: 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  text-align: center;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: none;
}

.product-card:hover .product-card-quickadd {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.product-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  background: var(--color-sale);
  color: #fff;
  border-radius: 100px;
  z-index: 2;
}

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

.product-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-name {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.product-card-flavors {
  font-size: 0.78rem;
  color: var(--color-text-tertiary);
  margin-bottom: 0.75rem;
}

.product-card-price {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: auto;
}

.product-card-price .original {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-tertiary);
  text-decoration: line-through;
}

.product-card-price .discount {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-sale);
}

/* --- All Products Section --- */
.products-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

/* --- Brand Story Section --- */
.brand-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg-tertiary);
}

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

.brand-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-bg-secondary);
}

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

.brand-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.brand-content p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* --- FAQ Section --- */
.faq-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

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

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.5rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-smooth);
  color: var(--color-text-tertiary);
}

.faq-item.active .faq-question svg {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth), padding var(--transition-smooth);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.5rem;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Tips Section --- */
.tips-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg-tertiary);
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.tip-card {
  padding: 2rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  transition: all var(--transition-smooth);
}

.tip-card:hover {
  border-color: var(--color-border);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px -16px rgba(0,0,0,0.06);
}

.tip-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-border);
  line-height: 1;
  margin-bottom: 1rem;
}

.tip-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

/* --- Footer --- */
.site-footer {
  padding: 4rem 0 2rem;
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
}

/* ===== Cart Page (mbarvape.com style) ===== */
.cart-page {
  padding-top: 100px;
  padding-bottom: 4rem;
  min-height: 70vh;
}

/* Checkout Steps */
.cart-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 2rem;
  gap: 0;
}

.cart-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #e5e7eb;
  color: #9ca3af;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.cart-step.active .step-circle {
  background: #2563eb;
  color: #fff;
}

.step-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: #9ca3af;
}

.cart-step.active .step-label {
  color: #2563eb;
}

.step-line {
  width: clamp(40px, 10vw, 96px);
  height: 1px;
  background: #d1d5db;
  margin: 0 0.5rem;
  margin-bottom: 1.2rem;
}

/* Cart Content */
.cart-content {
  max-width: 896px;
  margin: 0 auto;
}

/* Empty State */
.cart-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.cart-empty-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  background: var(--color-bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d1d5db;
}

.cart-empty h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.cart-empty p {
  font-size: 0.9rem;
  color: var(--color-text-tertiary);
  margin-bottom: 1.5rem;
}

.cart-continue-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #2563eb;
  color: #fff;
  padding: 0.625rem 1.5rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.cart-continue-btn:hover { background: #1d4ed8; }

/* Cart Items */
.cart-items-wrap {
  padding: 0 1rem;
}

.cart-items-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.cart-items-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.cart-items-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  background: #e5e7eb;
  color: var(--color-text-secondary);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Cart Item Card */
.cart-item {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: flex-start;
}

.cart-item-image {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-light);
}
.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.25rem;
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.cart-item-flavor {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
}

.cart-item-price {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-sale);
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.cart-item-qty button {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.cart-item-qty button:hover { color: var(--color-text); background: var(--color-bg-secondary); }
.cart-item-qty button:disabled { opacity: 0.3; cursor: default; }

.cart-item-qty span {
  width: 36px;
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  line-height: 32px;
}

.cart-item-remove {
  color: var(--color-text-tertiary);
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.cart-item-remove:hover {
  color: var(--color-sale);
  border-color: var(--color-sale);
}

/* Order Summary */
.cart-summary {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.cart-summary-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0.5rem 0;
}

.cart-summary-total {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.cart-shipping-free {
  color: var(--color-success);
  font-weight: 600;
}

/* Customer Info Form */
.cart-customer-info {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}

.cart-customer-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.cart-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.cart-form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.cart-form-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.cart-form-field input,
.cart-form-field textarea {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast);
}
.cart-form-field input:focus,
.cart-form-field textarea:focus {
  border-color: #2563eb;
}

.cart-form-field-full {
  grid-column: 1 / -1;
}

.cart-form-note {
  margin-top: 0.75rem;
}

.cart-form-note label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  display: block;
  margin-bottom: 0.3rem;
}

.cart-form-note textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  resize: vertical;
}

/* Checkout Button */
.cart-checkout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.875rem;
  margin-top: 1.5rem;
  background: #2563eb;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.cart-checkout-btn:hover { background: #1d4ed8; }
.cart-checkout-btn:active { transform: scale(0.98); }

.cart-checkout-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-top: 0.75rem;
  line-height: 1.4;
}

/* Mobile Cart */
@media (max-width: 767px) {
  .cart-page { padding-top: 80px; padding-bottom: 2rem; }

  .cart-items-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .cart-item {
    flex-wrap: wrap;
  }
  .cart-item-actions {
    width: 100%;
    justify-content: flex-end;
    padding-top: 0.5rem;
  }

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

  .cart-summary {
    margin-left: -1rem;
    margin-right: -1rem;
    border-radius: 0;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 280px;
}

.footer-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
}

.footer-logo span {
  font-weight: 300;
  opacity: 0.7;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  padding: 0.35rem 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom .social-links {
  display: flex;
  gap: 1rem;
}

.footer-bottom .social-links a {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

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

/* --- Product Detail Page (mbarvape.com-inspired clean structure) --- */
.product-detail {
  padding-top: 100px;
  padding-bottom: 3rem;
}

/* Breadcrumb */
.product-breadcrumb {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 1.5rem;
}
.product-breadcrumb a { color: var(--color-text-tertiary); }
.product-breadcrumb a:hover { color: var(--color-text); }
.product-breadcrumb .crumb-sep { margin: 0 0.5rem; }
.product-breadcrumb .crumb-current { color: var(--color-text); }

/* Grid: single column mobile → two columns tablet+ */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
.product-detail-grid > * {
  min-width: 0; /* critical: allow grid children to shrink below content width */
}
@media (min-width: 768px) {
  .product-detail-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}
@media (min-width: 1024px) {
  .product-detail-grid { gap: 4rem; }
}

/* === Gallery (left column) === */
.product-gallery { position: relative; }
@media (min-width: 1024px) {
  .product-gallery { position: sticky; top: 100px; }
}

/* Main image — 1:1 square, object-contain (keep full image visible) */
.product-gallery-main {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-gallery-main img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  padding: 0.5rem;
}

/* Mobile: allow image container to adapt to image ratio */
@media (max-width: 767px) {
  .product-gallery-main {
    aspect-ratio: auto;
    max-height: 70vh;
    overflow: visible;
  }
  .product-gallery-main img {
    width: 100%;
    height: auto;
    max-height: 65vh;
    object-fit: contain;
    padding: 0.5rem;
  }
}

/* Thumbnail strip — horizontal scroll with nav arrows (like mbarvape) */
.gallery-thumbs-wrap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
}
.thumb-nav-btn {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.thumb-nav-btn:hover:not(:disabled) {
  border-color: var(--color-text);
  color: var(--color-text);
}
.thumb-nav-btn:disabled { opacity: 0.3; cursor: default; }

.thumb-scroll {
  flex: 1;
  overflow: hidden;
}
.thumb-scroll-inner {
  display: flex;
  gap: 0.5rem;
  transition: transform 0.3s ease;
  will-change: transform;
}

/* Flavor/variant thumbnails */
.flavor-thumb {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  padding: 0;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  background: var(--color-bg-secondary);
}
.flavor-thumb:hover { border-color: var(--color-text-secondary); }
.flavor-thumb.active { border-color: var(--color-text); }
.flavor-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === Product Info (right column) === */
.product-info h1 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.product-sku {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  margin-bottom: 1rem;
}

.product-info-price {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.product-info-price .current {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-sale);
}
.product-info-price .original {
  font-size: 1.1rem;
  color: var(--color-text-tertiary);
  text-decoration: line-through;
}
.product-info-price .discount {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-sale);
  padding: 0.15rem 0.5rem;
  background: rgba(196, 18, 48, 0.08);
  border-radius: var(--radius-sm);
}

/* === Flavor Selector === */
.flavor-select { margin-bottom: 1.5rem; }
.flavor-select h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--color-text-secondary);
}
.flavor-select h3 span { color: var(--color-text); font-weight: 700; }

/* Flavor buttons — flex-wrap, auto-size to content (mbarvape approach) */
.flavor-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}
.flavor-option {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.flavor-option:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text);
}
.flavor-option.selected {
  border-color: var(--color-text);
  background: var(--color-text);
  color: #fff;
}

/* Stock indicator */
.product-stock {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}
.product-stock .stock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 1.5rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: fit-content;
  overflow: hidden;
}

.quantity-selector button {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.quantity-selector button:hover {
  background: var(--color-bg-secondary);
}

.quantity-selector input {
  width: 56px;
  height: 44px;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-left: 1.5px solid var(--color-border);
  border-right: 1.5px solid var(--color-border);
  outline: none;
}

.add-to-cart-btn {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  margin-bottom: 1.5rem;
}

.add-to-cart-btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* ===== Sticky Bottom Bar (mbarvape.com style) ===== */
.sticky-bottom-bar {
  display: none; /* hidden by default, shown by JS on product pages */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--color-border);
  z-index: 40;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.sticky-bar-inner {
  display: flex;
  align-items: center;
  width: 100%;
  padding: clamp(8px, 2vw, 14px) clamp(10px, 3vw, 18px);
  gap: clamp(8px, 2.5vw, 14px);
}

/* Quantity selector */
.sticky-qty-wrap {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: clamp(8px, 2vw, 12px);
  height: clamp(44px, 13vw, 60px);
  flex-shrink: 0;
  overflow: hidden;
}

.sticky-qty-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: clamp(36px, 10vw, 48px);
  font-size: clamp(1.1rem, 5vw, 1.5rem);
  color: var(--color-text-secondary);
  cursor: pointer;
  touch-action: manipulation;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.sticky-qty-btn:active { color: var(--color-text); }

.sticky-qty-input {
  height: 100%;
  width: clamp(40px, 11vw, 54px);
  text-align: center;
  font-weight: 600;
  font-size: clamp(0.95rem, 4vw, 1.2rem);
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  outline: none;
  background: transparent;
  pointer-events: none;
  /* hide spinner */
  -moz-appearance: textfield;
}
.sticky-qty-input::-webkit-outer-spin-button,
.sticky-qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Add to Cart button */
.sticky-cart-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  flex: 2 1 0%;
  height: clamp(44px, 13vw, 60px);
  border-radius: clamp(8px, 2vw, 12px);
  font-size: clamp(0.9rem, 4vw, 1.2rem);
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
  cursor: pointer;
  border: none;
  touch-action: manipulation;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  padding: 0 clamp(4px, 2vw, 12px);
  min-width: 0;
}
.sticky-cart-btn:hover { background: var(--color-accent-hover); }
.sticky-cart-btn:active { transform: scale(0.98); }

.sticky-cart-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Buy Now button */
.sticky-buy-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  flex: 1 1 0%;
  height: clamp(44px, 13vw, 60px);
  border-radius: clamp(8px, 2vw, 12px);
  font-size: clamp(0.85rem, 3.8vw, 1.15rem);
  font-weight: 600;
  color: #fff;
  background: #2563eb;
  cursor: pointer;
  border: none;
  touch-action: manipulation;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  padding: 0 clamp(4px, 2vw, 10px);
  min-width: 0;
}
.sticky-buy-btn:hover { background: #1d4ed8; }
.sticky-buy-btn:active { transform: scale(0.98); }

/* Add bottom padding to page when bar is visible */
body.has-sticky-bar {
  padding-bottom: clamp(64px, 16vw, 84px);
}
body.has-sticky-bar .site-footer {
  padding-bottom: clamp(80px, 18vw, 100px);
}

.product-description {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

.product-description h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.product-description p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.product-specs {
  margin-top: 1.5rem;
}

.product-specs h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--color-border-light);
}

.specs-table td {
  padding: 0.65rem 0;
  font-size: 0.88rem;
}

.specs-table td:first-child {
  color: var(--color-text-tertiary);
  width: 140px;
}

/* --- About Page --- */
.about-section {
  padding: var(--section-spacing) 0;
}

.about-hero {
  padding: 140px 0 4rem;
  text-align: center;
  background: var(--color-bg-tertiary);
}

.about-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

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

/* --- Contact Page --- */
.contact-section {
  padding: var(--section-spacing) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: var(--color-bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}

.contact-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.contact-item p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.contact-form {
  background: var(--color-bg-tertiary);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.92rem;
  font-family: inherit;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-text);
}

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

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--color-text);
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-smooth);
  pointer-events: none;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background: var(--color-success);
}

.toast.error {
  background: var(--color-sale);
}

/* --- Loading Skeleton --- */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg-tertiary) 50%, var(--color-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-image {
  aspect-ratio: 1 / 1;
}

.skeleton-text {
  height: 1rem;
  margin-bottom: 0.5rem;
}

.skeleton-text-sm {
  height: 0.8rem;
  width: 60%;
}

/* --- Age Verification Modal --- */
.age-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
}

.age-modal-content {
  background: var(--color-bg);
  padding: 3rem;
  border-radius: var(--radius-xl);
  text-align: center;
  max-width: 440px;
  width: 90%;
}

.age-modal-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.age-modal-content p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.age-modal-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* --- Responsive (Mobile First) --- */

/* Mobile: default styles are for mobile */
/* Show LINE float, hamburger, hide desktop nav */
@media (max-width: 767px) {
  .header-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .line-float { display: block; }
  /* User btn visible on mobile too */
  .user-btn-mobile-only { display: flex !important; }

  /* Hero mobile: more compact */
  .hero-content { padding: 2rem 0; }
  .hero-title { font-size: clamp(1.75rem, 7vw, 2.8rem); }
  .hero-desc { font-size: 0.92rem; max-width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* Products: 2 columns with tighter gaps */
  .product-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 0.65rem !important; }
  .product-card-body { padding: 0.85rem; }
  .product-card-name { font-size: 0.82rem; }
  .product-card-flavors { font-size: 0.72rem; margin-bottom: 0.5rem; }
  .product-card-price { font-size: 0.9rem; }
  .product-card-price .original { font-size: 0.72rem; }
  .product-badge { font-size: 0.62rem; padding: 0.15rem 0.5rem; }

  /* USP: stack vertical */
  .usp-grid { grid-template-columns: 1fr !important; gap: 0.8rem !important; }
  .usp-card { padding: 1.25rem; text-align: left; display: flex; gap: 0.9rem; align-items: flex-start; }
  .usp-icon { margin: 0; width: 40px; height: 40px; flex-shrink: 0; }
  .usp-icon svg { width: 18px; height: 18px; }
  .usp-card h3 { font-size: 0.88rem; margin-bottom: 0.1rem; }
  .usp-card p { font-size: 0.78rem; }

  /* Section spacing smaller on mobile */
  .featured-section,
  .products-section,
  .brand-section,
  .faq-section,
  .tips-section { padding: clamp(2rem,6vw,3.5rem) 0 !important; }

  .section-header { margin-bottom: 1.5rem !important; }
  .section-title { font-size: clamp(1.3rem,4vw,1.8rem) !important; }
  .section-subtitle { font-size: 0.88rem; }

  /* Brand story: stacked */
  .brand-grid { grid-template-columns: 1fr !important; gap: 1.5rem !important; }

  /* Tips: single column */
  .tips-grid { grid-template-columns: 1fr !important; gap: 0.8rem !important; }
  .tip-card { padding: 1.25rem; }
  .tip-number { font-size: 1.8rem; }
  .tip-card h3 { font-size: 0.92rem; }
  .tip-card p { font-size: 0.8rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr !important; gap: 1.5rem !important; padding-bottom: 80px; } /* space for LINE float */
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  /* Product Detail — mobile: full-width quantity & add-to-cart */
  .quantity-selector { width: 100% !important; justify-content: stretch; }
  .quantity-selector button { width: auto; flex: 1; height: 44px; }
  .quantity-selector input { flex: 1; width: auto; }
  .add-to-cart-btn { width: 100%; }
  /* Hide inline add-to-cart on mobile — bottom bar handles it */
  .product-info .quantity-selector { display: none !important; }
  .product-info .add-to-cart-btn { display: none !important; }

  /* FAQ */
  .faq-question { font-size: 0.92rem; padding: 1.1rem 0; }
  .faq-answer p { font-size: 0.86rem; }

  /* Header actions compact */
  .header-actions { gap: 0.25rem; }
  .lang-dropdown-trigger { font-size: 0.72rem; padding: 0.25rem 0.45rem; border-radius: 16px; }
  .lang-dropdown-trigger svg:first-child { width: 13px; height: 13px; }
  .lang-dropdown-trigger .lang-trigger-arrow { width: 11px; height: 11px; }
  .lang-dropdown-menu { min-width: 120px; }
  .lang-dropdown-item { padding: 0.45rem 0.7rem; font-size: 0.76rem; }
  .cart-btn { padding: 0.3rem 0.55rem; }
  .cart-btn svg { width: 18px; height: 18px; }
  .cart-count { min-width: 16px; height: 16px; font-size: 0.58rem; top: -3px; right: -3px; }

  /* About hero */
  .about-hero { padding: 110px 0 2.5rem !important; }
}

/* Tablet: medium screens */
@media (min-width: 768px) and (max-width: 1024px) {
  .line-float { display: block; right: 12px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* Desktop: large screens */
@media (min-width: 1025px) {
  .line-float { display: none; } /* hide LINE float on desktop */
  .mobile-menu { display: none !important; }
  .menu-overlay { display: none !important; }
  .user-btn-mobile-only { display: none !important; }
}

@media (max-width: 480px) {
  .hero-actions .btn { width: 100%; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}