/* ============================================
   QuenchGlow E-commerce Design System
   Premium Skincare Aesthetic
   ============================================ */

/* ============================================
   CSS VARIABLES / DESIGN TOKENS
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #FF6B35;
  --color-primary-light: #FF8A5C;
  --color-primary-dark: #E55A2B;
  --color-primary-gradient: linear-gradient(90deg, #FF6B35 0%, #FF8A5C 50%, #FF6B35 100%);

  /* Neutral Colors */
  --color-black: #000000;
  --color-white: #FFFFFF;
  --color-gray-100: #F9F9F9;
  --color-gray-200: #F0F0F0;
  --color-gray-300: #E0E0E0;
  --color-gray-400: #BDBDBD;
  --color-gray-500: #9E9E9E;
  --color-gray-600: #757575;
  --color-gray-700: #616161;
  --color-gray-800: #424242;
  --color-gray-900: #212121;

  /* Semantic Colors */
  --color-success: #4CAF50;
  --color-warning: #FFC107;
  --color-error: #F44336;
  --color-info: #2196F3;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', sans-serif;

  --font-size-xs: 0.75rem;
  /* 12px */
  --font-size-sm: 0.875rem;
  /* 14px */
  --font-size-base: 1rem;
  /* 16px */
  --font-size-lg: 1.125rem;
  /* 18px */
  --font-size-xl: 1.25rem;
  /* 20px */
  --font-size-2xl: 1.5rem;
  /* 24px */
  --font-size-3xl: 1.875rem;
  /* 30px */
  --font-size-4xl: 2.25rem;
  /* 36px */
  --font-size-5xl: 3rem;
  /* 48px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --spacing-xs: 0.25rem;
  /* 4px */
  --spacing-sm: 0.5rem;
  /* 8px */
  --spacing-md: 1rem;
  /* 16px */
  --spacing-lg: 1.5rem;
  /* 24px */
  --spacing-xl: 2rem;
  /* 32px */
  --spacing-2xl: 3rem;
  /* 48px */
  --spacing-3xl: 4rem;
  /* 64px */
  --spacing-4xl: 6rem;
  /* 96px */

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;

  /* Container */
  --container-max: 1400px;
  --container-padding: 1.5rem;
}

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  overflow-x: hidden;
}

img,
video {
  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;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   ANNOUNCEMENT BAR
   ============================================ */
.announcement-bar {
  background: linear-gradient(90deg, #7b2cbf 0%, #9d4edd 50%, #7b2cbf 100%);
  padding: var(--spacing-sm) var(--spacing-md);
  position: relative;
  z-index: var(--z-sticky);
}

.announcement-bar__container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  max-width: var(--container-max);
  margin: 0 auto;
}

.announcement-bar__arrow {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.announcement-bar__arrow:hover {
  background: rgba(255, 255, 255, 0.3);
}

.announcement-bar__arrow svg {
  width: 14px;
  height: 14px;
  fill: var(--color-white);
}

.announcement-bar__content {
  text-align: center;
  min-width: 300px;
}

.announcement-bar__text {
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.announcement-bar__text a {
  text-decoration: underline;
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
.header {
  background: var(--color-white);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: box-shadow var(--transition-normal);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.header__logo {
  display: flex;
  align-items: center;
  padding: 0.25rem 0;
}

.header__logo img {
  height: 100px;
  width: auto;
  object-fit: contain;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__item {
  position: relative;
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav__link:hover {
  color: var(--color-black);
}

.nav__link--active {
  color: var(--color-black);
  border-bottom: 2px solid var(--color-black);
}

/* Header Icons */
.header__icons {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
  position: relative;
}

.header__icon:hover {
  background: var(--color-gray-100);
}

.header__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-gray-800);
  fill: none;
  stroke-width: 1.5;
}

.header__cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Menu Toggle */
.header__mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.header__mobile-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-black);
  position: relative;
  transition: background var(--transition-fast);
}

.header__mobile-toggle span::before,
.header__mobile-toggle span::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: inherit;
  left: 0;
  transition: transform var(--transition-fast), top var(--transition-fast);
}

.header__mobile-toggle span::before {
  top: -6px;
}

.header__mobile-toggle span::after {
  top: 6px;
}

.header__mobile-toggle.active span {
  background: transparent;
}

.header__mobile-toggle.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.header__mobile-toggle.active span::after {
  top: 0;
  transform: rotate(-45deg);
}

body.mobile-nav-open {
  overflow: hidden;
}

/* ============================================
   MEGA DROPDOWN MENUS
   ============================================ */
.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-xl);
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: var(--z-dropdown);
}

.nav__item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__item--open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown--mega {
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 800px;
  max-width: 95vw;
}

.nav__item:hover .dropdown--mega {
  transform: translateX(-50%) translateY(0);
}

.nav__item--open .dropdown--mega {
  transform: translateX(-50%) translateY(0);
}

.dropdown__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.dropdown__column h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
}

.dropdown__column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.dropdown__column a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.dropdown__column a:hover {
  color: var(--color-black);
}

.dropdown__products {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.dropdown__product {
  text-align: center;
}

.dropdown__product-img {
  aspect-ratio: 1;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

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

.dropdown__product-name {
  font-size: var(--font-size-sm);
  color: var(--color-gray-800);
}

.dropdown__featured {
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
}

.dropdown__featured-img {
  max-width: 200px;
  margin: 0 auto var(--spacing-md);
}

.dropdown__featured-badge {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.dropdown__featured-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

.dropdown__show-more {
  display: inline-block;
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  transition: all var(--transition-fast);
}

.dropdown__show-more:hover {
  border-color: var(--color-black);
  color: var(--color-black);
}

/* ============================================
   HERO SLIDER
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-gray-100);
}

.hero__slider {
  display: flex;
  transition: transform var(--transition-slow);
}

.hero__slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.hero__content {
  padding: 0 var(--spacing-3xl);
  max-width: 600px;
}

.hero__badge {
  display: inline-block;
  background: var(--color-black);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-normal);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-md);
}

.hero__description {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.hero__features {
  margin-bottom: var(--spacing-xl);
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xs);
}

.hero__feature svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-success);
  flex-shrink: 0;
}

.hero__image {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__image img {
  max-height: 500px;
  object-fit: contain;
}

.hero__new-badge {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  background: var(--color-black);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.hero__stats {
  position: absolute;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background: var(--color-white);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.hero__stats-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
}

.hero__stats-label {
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
}

.hero__testimonial {
  position: absolute;
  top: 50%;
  left: 30%;
  transform: translateY(-50%);
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 280px;
}

.hero__testimonial-stars {
  color: var(--color-warning);
  margin-bottom: var(--spacing-sm);
}

.hero__testimonial-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-xs);
}

.hero__testimonial-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-relaxed);
}

.hero__testimonial-author {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

.hero__testimonial-verified {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

/* Hero Navigation */
.hero__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.hero__nav:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-300);
}

.hero__nav svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gray-800);
}

.hero__nav--prev {
  left: var(--spacing-xl);
}

.hero__nav--next {
  right: var(--spacing-xl);
}

.hero__dots {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-sm);
}

.hero__dot {
  width: 8px;
  height: 8px;
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero__dot--active {
  background: var(--color-black);
  width: 24px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn--primary {
  background: var(--color-black);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-gray-800);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-black);
  border: 1px solid var(--color-black);
}

.btn--secondary:hover {
  background: var(--color-gray-100);
}

.btn--outline {
  background: transparent;
  color: var(--color-black);
  border: 1px solid var(--color-gray-300);
}

.btn--outline:hover {
  border-color: var(--color-black);
}

.btn--coral {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--coral:hover {
  background: var(--color-primary-dark);
}

.btn--lg {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-base);
}

.btn--sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.btn--full {
  width: 100%;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
  padding: var(--spacing-3xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
}

/* ============================================
   PRODUCT CARDS
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card__image {
  position: relative;
  aspect-ratio: 1;
  background: var(--color-gray-100);
  overflow: hidden;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--spacing-lg);
  transition: transform var(--transition-normal);
}

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

.product-card__gallery {
  position: absolute;
  bottom: var(--spacing-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
}

.product-card__gallery-dot {
  width: 6px;
  height: 6px;
  background: var(--color-gray-400);
  border-radius: var(--radius-full);
}

.product-card__gallery-dot--active {
  background: var(--color-gray-700);
}

.product-card__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.product-card:hover .product-card__nav {
  opacity: 1;
}

.product-card__nav--prev {
  left: var(--spacing-sm);
}

.product-card__nav--next {
  right: var(--spacing-sm);
}

.product-card__nav svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-gray-700);
}

.product-card__badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background: var(--color-black);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.product-card__content {
  padding: var(--spacing-md);
}

.product-card__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  margin-bottom: var(--spacing-xs);
  line-height: var(--line-height-tight);
}

.product-card__benefit {
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-sm);
}

.product-card__rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.product-card__stars {
  display: flex;
  gap: 2px;
}

.product-card__stars svg {
  width: 14px;
  height: 14px;
  fill: var(--color-warning);
}

.product-card__stars svg.empty {
  fill: var(--color-gray-300);
}

.product-card__rating-count {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.product-card__price {
  margin-bottom: var(--spacing-md);
}

.product-card__price-label {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.product-card__price-current {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
}

.product-card__price-original {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  text-decoration: line-through;
  margin-left: var(--spacing-xs);
}

.product-card__btn {
  width: 100%;
}

/* ============================================
   AI SKIN INSIGHTS
   ============================================ */
.ai-insights {
  background: var(--color-white);
  padding: var(--spacing-3xl) 0;
}

.ai-insights__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.ai-insights__image {
  position: relative;
  display: flex;
  justify-content: center;
}

.ai-insights__face {
  max-width: 350px;
  border-radius: var(--radius-lg);
}

.ai-insights__marker {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.ai-insights__marker::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--color-gray-400);
}

.ai-insights__marker--left {
  right: 60%;
  flex-direction: row-reverse;
}

.ai-insights__marker--left::before {
  order: -1;
}

.ai-insights__marker--right {
  left: 60%;
}

.ai-insights__content {
  text-align: center;
  max-width: 450px;
  margin: 0 auto;
}

.ai-insights__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
}

.ai-insights__title span {
  font-weight: var(--font-weight-light);
}

.ai-insights__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-md);
}

.ai-insights__description {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   SHOP BY CATEGORY
   ============================================ */
.categories {
  padding: var(--spacing-3xl) 0;
}

.categories__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.category-card {
  position: relative;
  aspect-ratio: 0.85;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.category-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--spacing-xl);
}

.category-card__name {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  backdrop-filter: blur(4px);
}

/* ============================================
   SHOP BY CONCERNS
   ============================================ */
.concerns {
  padding: var(--spacing-3xl) 0;
  overflow: hidden;
}

.concerns__carousel {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.concerns__scroll {
  flex: 1;
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--spacing-md);
  scrollbar-width: none;
}

.concerns__scroll::-webkit-scrollbar {
  display: none;
}

.concerns__arrow {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-gray-500);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.concerns__arrow:hover {
  color: var(--color-black);
  background: var(--color-gray-100);
}

.concerns__arrow:disabled {
  opacity: 0.35;
  cursor: default;
}

.concerns__arrow svg {
  width: 16px;
  height: 16px;
}

.concern-card {
  flex-shrink: 0;
  width: 200px;
  scroll-snap-align: start;
  cursor: pointer;
}

.concern-card__image {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.concern-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.concern-card:hover .concern-card__image img {
  transform: scale(1.05);
}

.concern-card__name {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  transition: color var(--transition-fast);
}

.concern-card:hover .concern-card__name {
  color: var(--color-black);
}

.concerns__nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.concerns__nav-dot {
  width: 24px;
  height: 4px;
  border: 0;
  padding: 0;
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.concerns__nav-dot--active {
  background: var(--color-black);
  width: 40px;
}

/* ============================================
   FLOATING WIDGETS
   ============================================ */
.floating-widgets {
  position: fixed;
  bottom: var(--spacing-xl);
  left: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  z-index: var(--z-fixed);
}

.floating-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.floating-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.floating-btn svg {
  width: 18px;
  height: 18px;
}

.floating-btn--circle {
  width: 48px;
  height: 48px;
  padding: 0;
  justify-content: center;
  border-radius: var(--radius-full);
}

/* ============================================
   VIEW ALL BUTTON
   ============================================ */
.view-all {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

.view-all__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  transition: all var(--transition-fast);
}

.view-all__btn:hover {
  border-color: var(--color-black);
  color: var(--color-black);
}

.view-all__btn span {
  color: var(--color-primary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-gray-100);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
}

.footer__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-black);
}

.footer__social-link:hover svg {
  stroke: var(--color-white);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-gray-700);
}

.footer__column h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__column a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.footer__column a:hover {
  color: var(--color-black);
}

.footer__bottom {
  border-top: 1px solid var(--color-gray-300);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.footer__payments {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__payment {
  width: 40px;
  height: 25px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 1200px) {
  .hero__slide {
    padding: var(--spacing-2xl) 0;
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .categories__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .header__container {
    position: relative;
  }

  .nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(380px, 92vw);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-white);
    border-left: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
    padding: 5.5rem 0 var(--spacing-md);
    overflow-y: auto;
    z-index: var(--z-modal);
  }

  .nav.nav--open {
    display: flex;
  }

  .nav__item {
    width: 100%;
  }

  .nav__link {
    width: 100%;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-gray-100);
  }

  .nav__link--active {
    border-bottom: 1px solid var(--color-gray-100);
    font-weight: var(--font-weight-semibold);
  }

  .nav .dropdown,
  .nav .dropdown--mega {
    display: none !important;
  }

  .header__icon {
    width: 44px;
    height: 44px;
  }

  .header__mobile-toggle {
    display: flex;
    position: relative;
    z-index: calc(var(--z-modal) + 1);
  }

  .hero__slide {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__content {
    padding: 0 var(--spacing-xl);
    max-width: 100%;
    order: 2;
  }

  .hero__image {
    order: 1;
    margin-bottom: var(--spacing-xl);
  }

  .hero__testimonial,
  .hero__stats {
    display: none;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .categories__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ai-insights__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

  .announcement-bar__container {
    gap: var(--spacing-md);
  }

  .announcement-bar__text {
    font-size: var(--font-size-xs);
  }

  .hero__title {
    font-size: var(--font-size-2xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-base);
  }

  .hero__nav {
    width: 36px;
    height: 36px;
  }

  .hero__nav--prev {
    left: var(--spacing-sm);
  }

  .hero__nav--next {
    right: var(--spacing-sm);
  }

  .section__title {
    font-size: var(--font-size-2xl);
  }

  .products-grid {
    gap: var(--spacing-md);
  }

  .categories__grid {
    gap: var(--spacing-md);
  }

  .floating-widgets {
    bottom: var(--spacing-md);
    left: var(--spacing-md);
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .concerns__carousel {
    gap: 0;
  }

  .concerns__arrow {
    display: none;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

  .categories__grid {
    grid-template-columns: 1fr;
  }

  .concern-card {
    width: 160px;
  }
}

/* ============================================
   CART DRAWER
   ============================================ */
.cart-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  pointer-events: none;
}

.cart-drawer--open {
  pointer-events: auto;
}

.cart-drawer__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.cart-drawer--open .cart-drawer__overlay {
  opacity: 1;
}

.cart-drawer__content {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 420px;
  height: 100%;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.cart-drawer--open .cart-drawer__content {
  transform: translateX(0);
}

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

.cart-drawer__header h2 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.cart-drawer__close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.cart-drawer__close:hover {
  background: var(--color-gray-100);
}

.cart-drawer__close svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gray-600);
}

.cart-drawer__items {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md) var(--spacing-xl);
}

.cart-drawer__empty {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.cart-drawer__empty svg {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  stroke: var(--color-gray-300);
}

.cart-drawer__empty p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
}

.cart-drawer__item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.cart-drawer__item:last-child {
  border-bottom: none;
}

.cart-drawer__item-image {
  width: 80px;
  height: 80px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

.cart-drawer__item-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--spacing-xs);
}

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

.cart-drawer__item-info h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

.cart-drawer__item-size {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-xs);
}

.cart-drawer__item-price {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.cart-drawer__item-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-sm);
}

.cart-drawer__quantity {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.cart-drawer__quantity button {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-100);
  font-size: var(--font-size-lg);
  transition: background var(--transition-fast);
}

.cart-drawer__quantity button:hover {
  background: var(--color-gray-200);
}

.cart-drawer__quantity span {
  min-width: 32px;
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.cart-drawer__remove {
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.cart-drawer__remove:hover {
  background: var(--color-gray-100);
}

.cart-drawer__remove svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-gray-500);
}

.cart-drawer__footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-100);
}

.cart-drawer__subtotal {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
}

.cart-drawer__shipping {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-md);
}

.cart-drawer__footer .btn {
  margin-bottom: var(--spacing-sm);
}

.cart-drawer__footer .btn:last-child {
  margin-bottom: 0;
}