/**
 * Wealthsimple-Inspired Finance-Grade Design System
 * E-commerce Store Styles
 */

/* ==================== CSS VARIABLES ==================== */
:root {
  /* Colors - Wealthsimple-Inspired Minimalism */
  --color-bg-primary: #fafafa;
  --color-bg-secondary: #f5f5f5;
  --color-bg-tertiary: #eeeeee;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #525252;
  --color-text-tertiary: #737373;
  --color-border: #e5e5e5;
  --color-border-light: #f5f5f5;
  
  /* Signature Green Accent */
  --color-accent-primary: #00d3a0; /* Wealthsimple green */
  --color-accent-secondary: #525252; /* Muted gray for secondary links */
  --color-accent-light: #b3f5e6;
  --color-accent-dark: #00b389;
  
  /* Semantic Colors */
  --color-success: #00d3a0;
  --color-error: #e63946;
  --color-warning: #f59e0b;
  
  /* Spacing Scale (8px base) */
  --space-xs: 0.25rem;    /* 4px */
  --space-sm: 0.5rem;     /* 8px */
  --space-md: 1rem;       /* 16px */
  --space-lg: 1.5rem;     /* 24px */
  --space-xl: 2rem;       /* 32px */
  --space-2xl: 3rem;      /* 48px */
  --space-3xl: 4rem;      /* 64px */
  --space-4xl: 6rem;      /* 96px */
  
  /* Border Radius - Pill & Rounded */
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-pill: 9999px;   /* Pill shape for buttons */
  --radius-full: 9999px;
  
  /* Shadows - Softer & More Subtle */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-md: 0 2px 4px 0 rgba(0, 0, 0, 0.04), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 4px 8px 0 rgba(0, 0, 0, 0.06), 0 2px 4px 0 rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 8px 16px 0 rgba(0, 0, 0, 0.08), 0 4px 8px 0 rgba(0, 0, 0, 0.05);
  --shadow-2xl: 0 16px 32px 0 rgba(0, 0, 0, 0.1);
  --shadow-lift: 0 8px 24px 0 rgba(0, 0, 0, 0.08);
  
  /* Animation - Wealthsimple-Smooth */
  --duration-fast: 180ms;
  --duration-normal: 220ms;
  --duration-slow: 260ms;
  --easing-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --easing-smooth: cubic-bezier(0.2, 0.8, 0.3, 1);
  --easing-gentle: cubic-bezier(0.25, 0.8, 0.25, 1);
  
  /* Typography - Wealthsimple-Style System Fonts */
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;
  
  /* Container */
  --container-max: 1280px;
  --container-padding: var(--space-lg);
}

/* Dark Mode - Charcoal with Green Accent */
[data-theme="dark"] {
  --color-bg-primary: #1a1a1a;
  --color-bg-secondary: #262626;
  --color-bg-tertiary: #333333;
  --color-text-primary: #fafafa;
  --color-text-secondary: #a3a3a3;
  --color-text-tertiary: #737373;
  --color-border: #404040;
  --color-border-light: #333333;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 2px 4px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 4px 8px 0 rgba(0, 0, 0, 0.4), 0 2px 4px 0 rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 8px 16px 0 rgba(0, 0, 0, 0.5), 0 4px 8px 0 rgba(0, 0, 0, 0.4);
  --shadow-2xl: 0 16px 32px 0 rgba(0, 0, 0, 0.6);
  --shadow-lift: 0 8px 24px 0 rgba(0, 0, 0, 0.5);
}

/* ==================== RESET & BASE ==================== */
*, *::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-sans);
  font-size: 1rem;
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--duration-normal) var(--easing-standard),
              color var(--duration-normal) var(--easing-standard);
}

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

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-md);
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--easing-standard);
}

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

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

.section {
  padding: var(--space-4xl) 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--easing-smooth),
              transform var(--duration-slow) var(--easing-smooth);
}

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

/* Page fade-in */
body {
  animation: fadeIn var(--duration-slow) var(--easing-smooth);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ==================== NAVBAR ==================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  transition: all var(--duration-normal) var(--easing-standard);
}

.navbar.scrolled {
  backdrop-filter: blur(12px);
  background-color: rgba(250, 250, 250, 0.9);
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .navbar.scrolled {
  background-color: rgba(26, 26, 26, 0.9);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.navbar-logo {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  white-space: nowrap;
}

.navbar-search {
  flex: 1;
  max-width: 400px;
  display: none;
}

@media (min-width: 768px) {
  .navbar-search {
    display: block;
  }
}

.navbar-search input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background-color: var(--color-bg-secondary);
  font-size: 0.875rem;
  transition: all var(--duration-fast) var(--easing-standard);
}

.navbar-search input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.navbar-nav a {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--easing-standard);
  white-space: nowrap;
}

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

.navbar-icons {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--easing-standard);
  position: relative;
}

.icon-btn:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-accent-primary);
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background-color: var(--color-accent-primary);
  color: white;
  font-size: 0.625rem;
  font-weight: var(--font-weight-bold);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
  animation: bounceIn var(--duration-normal) var(--easing-bounce);
}

@keyframes bounceIn {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
}

@media (max-width: 767px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .navbar-nav {
    display: none;
  }
  
  .navbar-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    animation: slideDown var(--duration-normal) var(--easing-smooth);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--easing-standard);
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-accent-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary:hover:not(:disabled) {
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
  background-color: rgba(0, 211, 160, 0.05);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-accent-primary);
  background-color: var(--color-bg-secondary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Button shine effect */
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--duration-slow) var(--easing-standard);
}

.btn-primary:hover::before {
  left: 100%;
}

/* Focus states */
.btn:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* ==================== CARDS ==================== */
.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-lg);
  transition: all var(--duration-normal) var(--easing-smooth);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.product-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.product-card:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-3px);
}

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

.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-2xl);
  box-shadow: 0 0 0 1px var(--color-accent-primary);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--easing-standard);
  pointer-events: none;
}

.product-image {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(249, 115, 22, 0.1) 100%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--easing-standard);
}

.product-card:hover .product-image::before {
  opacity: 1;
}

.product-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background-color: var(--color-accent-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

/* Removed playful wiggle animation for Wealthsimple-style minimalism */

.product-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.product-name {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.product-price {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-primary);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

.stars {
  display: flex;
  gap: 2px;
  color: var(--color-warning);
}

.star {
  font-size: 0.875rem;
}

.star-full {
  color: var(--color-warning);
}

.star-half {
  color: var(--color-warning);
  opacity: 0.5;
}

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

/* ==================== GRID LAYOUTS ==================== */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

@media (max-width: 767px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==================== HERO SECTION ==================== */
.hero {
  position: relative;
  padding: var(--space-4xl) 0;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 150%;
  background: radial-gradient(circle, rgba(0, 211, 160, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
  z-index: -1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 211, 160, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
  z-index: -1;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, -30px) scale(1.1);
  }
}

.hero-content {
  max-width: 680px;
  z-index: 1;
}

.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--space-lg);
  line-height: 1.15;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.03em;
}

.hero-subtext {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: var(--line-height-relaxed);
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  align-items: center;
}

.hero-link {
  font-size: 1.0625rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-secondary);
  text-decoration: none;
  position: relative;
  transition: color var(--duration-normal) var(--easing-standard);
}

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

.hero-link::after {
  content: '→';
  margin-left: 0.5rem;
  transition: transform var(--duration-normal) var(--easing-standard);
  display: inline-block;
}

.hero-link:hover::after {
  transform: translateX(4px);
}

/* ==================== BADGES ==================== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-new {
  background-color: var(--color-accent-secondary);
  color: white;
}

.badge-bestseller {
  background-color: var(--color-accent-primary);
  color: white;
}

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: all var(--duration-normal) var(--easing-standard);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 211, 160, 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-error {
  display: block;
  font-size: 0.875rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
}

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

/* ==================== MODALS ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--easing-standard);
}

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

.modal {
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
  transform: scale(0.95);
  opacity: 0;
  transition: transform var(--duration-normal) var(--easing-standard),
              opacity var(--duration-normal) var(--easing-standard);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--easing-standard);
}

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

/* ==================== DRAWER (MOBILE CART) ==================== */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--easing-standard);
}

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

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background-color: var(--color-bg-primary);
  box-shadow: var(--shadow-2xl);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--easing-smooth);
  display: flex;
  flex-direction: column;
}

.drawer-overlay.active .drawer {
  transform: translateX(0);
}

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

.drawer-body {
  flex: 1;
  padding: var(--space-lg);
  overflow-y: auto;
}

.drawer-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* ==================== FOOTER ==================== */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4xl) 0 var(--space-xl);
  margin-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  transition: color var(--duration-fast) var(--easing-standard);
}

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

.footer-newsletter {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.footer-newsletter input {
  flex: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-md);
}

.social-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-primary);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--easing-standard);
}

.social-icon:hover {
  background-color: var(--color-accent-primary);
  color: white;
  transform: translateY(-2px);
}

/* ==================== SKELETON LOADING ==================== */
.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-lg);
}

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

.skeleton-card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 1;
  margin-bottom: var(--space-md);
}

.skeleton-text {
  height: 1rem;
  margin-bottom: var(--space-sm);
}

.skeleton-text:last-child {
  width: 60%;
}

/* ==================== UTILITIES ==================== */
.text-center {
  text-align: center;
}

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

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.hidden {
  display: none !important;
}

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

/* ==================== FILTER & SORT ==================== */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-group label {
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

/* ==================== ACCORDION (FAQ) ==================== */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

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

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

.accordion-header {
  width: 100%;
  padding: var(--space-lg);
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--duration-fast) var(--easing-standard);
}

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

.accordion-icon {
  transition: transform var(--duration-fast) var(--easing-standard);
}

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

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--easing-standard);
}

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

.accordion-body {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ==================== CART TABLE ==================== */
.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-xl);
}

.cart-table th {
  text-align: left;
  padding: var(--space-md);
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--color-border);
}

.cart-table td {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.cart-item-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.cart-item-image {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.cart-item-details h4 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1rem;
}

.cart-item-meta {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

.quantity-control {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.quantity-control button {
  background: none;
  border: none;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  color: var(--color-text-primary);
  transition: background-color var(--duration-fast) var(--easing-standard);
}

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

.quantity-control input {
  width: 50px;
  text-align: center;
  border: none;
  background: none;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
}

.remove-btn {
  background: none;
  border: none;
  color: var(--color-error);
  cursor: pointer;
  font-size: 0.875rem;
  text-decoration: underline;
  transition: opacity var(--duration-fast) var(--easing-standard);
}

.remove-btn:hover {
  opacity: 0.7;
}

/* ==================== CART SUMMARY ==================== */
.cart-summary {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  position: sticky;
  top: calc(var(--space-xl) + 70px);
}

.cart-summary h3 {
  margin-bottom: var(--space-lg);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
}

.summary-row.total {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  padding-top: var(--space-md);
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-md);
}

/* ==================== STEPPER (CHECKOUT) ==================== */
.stepper {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.stepper::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-border);
  z-index: -1;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  position: relative;
}

.step-circle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  transition: all var(--duration-fast) var(--easing-standard);
}

.step.active .step-circle {
  background-color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: white;
}

.step.completed .step-circle {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: white;
}

.step-label {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  text-align: center;
}

.step.active .step-label {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  :root {
    --container-padding: var(--space-md);
  }
  
  .hero {
    min-height: 60vh;
  }
}

@media (max-width: 767px) {
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .cart-table {
    font-size: 0.875rem;
  }
  
  .cart-item-image {
    width: 60px;
    height: 60px;
  }
  
  .stepper {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .stepper::before {
    display: none;
  }
}

/* ==================== PRINT STYLES ==================== */
@media print {
  .navbar,
  .footer,
  .btn,
  .filters {
    display: none;
  }
  
  body {
    color: #000;
    background: #fff;
  }
}