/* ============================================
   BIGLIFE MOMENT - MASTER STYLESHEET
   ============================================ */

/* 1. CSS VARIABLES */
:root {
  /* Colors */
  --color-primary: #0d6e6e;
  --color-primary-dark: #095555;
  --color-primary-light: #0f8a8a;
  --color-secondary: #1a365d;
  --color-accent: #e07c5a;
  --color-accent-dark: #c96a4a;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-background: #ffffff;
  --color-background-alt: #f7f5f3;
  --color-background-warm: #faf8f5;
  --color-border: #e0dcd7;
  --color-success: #27ae60;
  --color-error: #e74c3c;
  --color-warning: #f39c12;
  --color-star: #f1c40f;

  /* Category Colors */
  --color-love: #e07c5a;
  --color-dating: #9b59b6;
  --color-kids: #3498db;
  --color-wedding: #e8b4bc;
  --color-diet: #27ae60;

  /* Typography */
  --font-heading: 'Nunito', sans-serif;
  --font-body: 'Nunito', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Layout */
  --container-max-width: 1200px;
  --container-padding: 1rem;
  --header-height: 80px;

  /* Effects */
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 20px;
  --border-radius-full: 50%;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
  --box-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --box-shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
  --transition-speed: 0.3s;
  --transition-fast: 0.15s;
}

/* 2. RESET/NORMALIZE */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-speed);
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* 3. TYPOGRAPHY */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-secondary);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-sm);
}

p:last-child {
  margin-bottom: 0;
}

.text-center {
  text-align: center;
}

.text-light {
  color: var(--color-text-light);
}

.text-accent {
  color: var(--color-accent);
}

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

/* 4. LAYOUT COMPONENTS */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-3xl) 0;
}

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

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* HEADER & NAVIGATION */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-background);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  transition: all var(--transition-speed);
}

.header.scrolled {
  height: 65px;
  box-shadow: var(--box-shadow-lg);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.logo i {
  color: var(--color-accent);
}

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

.nav-menu a {
  font-weight: 500;
  color: var(--color-text);
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-menu a:hover {
  color: var(--color-primary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-speed);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
}

.dropdown-toggle i {
  font-size: var(--font-size-xs);
  transition: transform var(--transition-speed);
}

.dropdown:hover .dropdown-toggle i {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -20px;
  min-width: 220px;
  background: var(--color-background);
  box-shadow: var(--box-shadow-lg);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-speed);
}

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

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
}

.dropdown-menu a:hover {
  background: var(--color-background-alt);
}

.dropdown-menu a i {
  width: 20px;
  color: var(--color-primary);
}

/* Cart Icon */
.cart-icon {
  position: relative;
  font-size: var(--font-size-xl);
  color: var(--color-text);
  cursor: pointer;
}

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

.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--color-accent);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-speed);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* FOOTER */
.footer {
  background: var(--color-secondary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin: var(--spacing-sm) 0 var(--spacing-md);
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.footer-social a:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
}

.footer h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  padding: var(--spacing-xs) 0;
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

/* 5. UI COMPONENTS */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 12px 28px;
  font-weight: 600;
  border-radius: var(--border-radius);
  transition: all var(--transition-speed);
  cursor: pointer;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
}

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
}

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

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

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-block {
  width: 100%;
}

/* Product Cards */
.product-card {
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: all var(--transition-speed);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--box-shadow-hover);
}

.product-card-image {
  position: relative;
  height: 200px;
  background: var(--color-background-alt);
  overflow: hidden;
}

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

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

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: var(--color-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--border-radius);
  text-transform: uppercase;
}

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

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

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

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

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

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

.product-card-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--color-secondary);
}

.product-card-title a:hover {
  color: var(--color-primary);
}

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

.product-rating .stars {
  color: var(--color-star);
}

.product-rating span {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.product-price .original {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-decoration: line-through;
  margin-left: var(--spacing-xs);
  font-weight: 400;
}

.add-to-cart-btn {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: white;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.add-to-cart-btn:hover {
  background: var(--color-primary);
  transform: scale(1.1);
}

/* Category Cards */
.category-card {
  position: relative;
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--box-shadow);
  transition: all var(--transition-speed);
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-speed);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-hover);
}

.category-icon {
  width: 70px;
  height: 70px;
  background: var(--color-background-alt);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  transition: all var(--transition-speed);
}

.category-card:hover .category-icon {
  background: var(--color-primary);
  color: white;
}

.category-card h3 {
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-xl);
}

.category-card p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-secondary);
}

.form-control {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-speed);
  background: var(--color-background);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 110, 110, 0.1);
}

.form-control.error {
  border-color: var(--color-error);
}

.form-control.success {
  border-color: var(--color-success);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-speed);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: all var(--transition-speed);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  cursor: pointer;
  transition: color var(--transition-speed);
}

.modal-close:hover {
  color: var(--color-error);
}

.modal-body {
  padding: var(--spacing-lg);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: var(--color-background);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 300px;
  transform: translateX(120%);
  transition: transform var(--transition-speed);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 4px solid var(--color-success);
}

.toast.error {
  border-left: 4px solid var(--color-error);
}

.toast i {
  font-size: var(--font-size-xl);
}

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

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

/* Tabs */
.tabs {
  border-bottom: 2px solid var(--color-border);
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.tab-btn {
  padding: var(--spacing-sm) 0;
  font-weight: 600;
  color: var(--color-text-light);
  position: relative;
  cursor: pointer;
  transition: color var(--transition-speed);
}

.tab-btn:hover,
.tab-btn.active {
  color: var(--color-primary);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-speed);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* Accordion */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.accordion-header {
  padding: var(--spacing-md);
  background: var(--color-background-alt);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  transition: background var(--transition-speed);
}

.accordion-header:hover {
  background: var(--color-border);
}

.accordion-header i {
  transition: transform var(--transition-speed);
}

.accordion-item.active .accordion-header i {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed);
}

.accordion-item.active .accordion-body {
  max-height: 500px;
}

.accordion-content {
  padding: var(--spacing-md);
  color: var(--color-text-light);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
}

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

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

.breadcrumb span {
  color: var(--color-text);
  font-weight: 500;
}

/* Rating Stars */
.stars {
  display: inline-flex;
  gap: 2px;
}

.stars i {
  color: var(--color-star);
}

.stars i.empty {
  color: var(--color-border);
}

/* 6. PAGE-SPECIFIC STYLES */

/* Hero Section */
.hero {
  padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
  background: linear-gradient(135deg, var(--color-background-warm) 0%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13, 110, 110, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-text h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
}

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

.hero-text p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
}

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

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--border-radius-xl);
  box-shadow: var(--box-shadow-lg);
}

/* Benefits Section */
.benefits {
  background: var(--color-background-alt);
}

.benefit-card {
  text-align: center;
  padding: var(--spacing-lg);
}

.benefit-icon {
  width: 80px;
  height: 80px;
  background: white;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  box-shadow: var(--box-shadow);
}

.benefit-card h4 {
  margin-bottom: var(--spacing-xs);
}

.benefit-card p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* Testimonials */
.testimonial-card {
  background: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 25px;
  font-size: 80px;
  font-family: var(--font-heading);
  color: var(--color-primary);
  opacity: 0.15;
  line-height: 1;
}

.testimonial-text {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

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

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
}

.testimonial-author h5 {
  margin-bottom: 2px;
  font-size: var(--font-size-base);
}

.testimonial-author span {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* Newsletter */
.newsletter {
  background: var(--color-primary);
  color: white;
  text-align: center;
}

.newsletter h2 {
  color: white;
}

.newsletter p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 500px;
  margin: 0 auto var(--spacing-lg);
}

.newsletter-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: var(--spacing-sm);
}

.newsletter-form input {
  flex: 1;
  padding: 16px 20px;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
}

.newsletter-form input:focus {
  border-color: var(--color-accent);
}

/* Products Page */
.products-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-xl);
  padding-top: calc(var(--header-height) + var(--spacing-lg));
}

.sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
  height: fit-content;
}

.filter-group {
  background: var(--color-background);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--box-shadow);
}

.filter-group h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  cursor: pointer;
}

.filter-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.price-range {
  padding: var(--spacing-sm) 0;
}

.price-range input[type="range"] {
  width: 100%;
  accent-color: var(--color-primary);
}

.price-values {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Category Hero */
.category-hero {
  padding: calc(var(--header-height) + var(--spacing-2xl)) 0 var(--spacing-2xl);
  background: linear-gradient(135deg, var(--color-background-alt) 0%, var(--color-background-warm) 100%);
  text-align: center;
}

.category-hero h1 {
  margin-bottom: var(--spacing-sm);
}

.category-hero p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Product Detail */
.product-detail {
  padding-top: calc(var(--header-height) + var(--spacing-lg));
}

.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
}

.product-main-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.product-main-image img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.product-info h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.product-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.product-detail-price {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.quantity-selector button {
  width: 40px;
  height: 40px;
  background: var(--color-background-alt);
  border-radius: var(--border-radius);
  font-size: var(--font-size-lg);
  font-weight: 600;
  transition: all var(--transition-speed);
}

.quantity-selector button:hover {
  background: var(--color-primary);
  color: white;
}

.quantity-selector input {
  width: 60px;
  height: 40px;
  text-align: center;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  font-weight: 600;
}

.product-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

/* Cart Page */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--spacing-xl);
  padding-top: calc(var(--header-height) + var(--spacing-lg));
}

.cart-items {
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--box-shadow);
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto auto auto;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.cart-item-image {
  border-radius: var(--border-radius);
  overflow: hidden;
}

.cart-item-image img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.cart-item-title h4 {
  font-size: var(--font-size-base);
  margin-bottom: 4px;
}

.cart-item-title span {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

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

.cart-item-remove {
  color: var(--color-text-light);
  cursor: pointer;
  transition: color var(--transition-speed);
}

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

.cart-summary {
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--box-shadow);
  height: fit-content;
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
}

.cart-summary h3 {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.cart-summary-row.total {
  font-size: var(--font-size-xl);
  font-weight: 700;
  border-top: 2px solid var(--color-border);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-md);
}

.cart-summary-row.total span:last-child {
  color: var(--color-primary);
}

/* About Page */
.about-hero {
  padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-2xl);
  background: var(--color-background-alt);
  text-align: center;
}

.about-hero h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

.about-hero p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

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

.stat-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-heading);
}

.stat-label {
  color: var(--color-text-light);
  margin-top: var(--spacing-xs);
}

/* Contact Page */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-form-card {
  background: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

.contact-info-card {
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
}

.contact-info-card h3 {
  color: white;
  margin-bottom: var(--spacing-lg);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-item i {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.contact-item h4 {
  color: white;
  font-size: var(--font-size-base);
  margin-bottom: 4px;
}

.contact-item p {
  color: rgba(255, 255, 255, 0.8);
}

/* 7. UTILITY CLASSES */
.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.py-1 {
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.py-2 {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.py-3 {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
}

.d-flex {
  display: flex;
}

.align-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 {
  gap: var(--spacing-sm);
}

.gap-2 {
  gap: var(--spacing-md);
}

/* 8. ANIMATIONS & TRANSITIONS */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 {
  transition-delay: 0.1s;
}

.stagger-2 {
  transition-delay: 0.2s;
}

.stagger-3 {
  transition-delay: 0.3s;
}

.stagger-4 {
  transition-delay: 0.4s;
}

/* 9. MEDIA QUERIES */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .hero-content {
    gap: var(--spacing-xl);
  }

  .products-layout {
    grid-template-columns: 250px 1fr;
  }

  .cart-layout {
    grid-template-columns: 1fr 320px;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --spacing-3xl: 4rem;
    --spacing-2xl: 3rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-background);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    padding-left: var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .dropdown.active .dropdown-menu {
    max-height: 300px;
  }

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

  .hero-text p {
    margin: 0 auto var(--spacing-lg);
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    order: -1;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .products-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .filter-group {
    margin-bottom: 0;
  }

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

  .cart-item {
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-sm);
  }

  .cart-item-price,
  .quantity-selector,
  .cart-item-remove {
    grid-column: 2;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

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

  .footer-social {
    justify-content: center;
  }

  .newsletter-form {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --container-padding: 1rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .product-actions {
    flex-direction: column;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .tab-btn {
    white-space: nowrap;
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* Empty Cart State */
.empty-cart {
  text-align: center;
  padding: var(--spacing-3xl);
}

.empty-cart i {
  font-size: 80px;
  color: var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.empty-cart h2 {
  margin-bottom: var(--spacing-sm);
}

.empty-cart p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

/* Page Header */
.page-header {
  padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
  background: var(--color-background-alt);
  margin-bottom: var(--spacing-xl);
}

.page-header h1 {
  font-size: var(--font-size-3xl);
}

/* Products Sort Bar */
.products-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.products-count {
  color: var(--color-text-light);
}

.sort-select {
  padding: 10px 40px 10px 15px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-background);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

/* Quick View Modal */
.quick-view-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .quick-view-content {
    grid-template-columns: 1fr;
  }
}

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Checkout Modal Styles */
.checkout-modal {
  max-width: 500px;
}

.checkout-summary {
  background: var(--color-background-alt);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
}

.summary-details {
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text-dark);
}

.payment-form .form-group {
  margin-bottom: var(--spacing-md);
}

.payment-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.card-input-container {
  position: relative;
}

.card-input-container i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
}

.card-input-container input {
  padding-left: 2.5rem;
}

.form-row {
  display: flex;
  gap: var(--spacing-md);
}

.form-row .form-group {
  flex: 1;
}

@media (max-width: 768px) {
  .checkout-modal {
    width: 95%;
    margin: 20px;
  }
}