/* ==========================================================================
   GLASSMORPHISM E-COMMERCE DESIGN SYSTEM
   Modern, Accessible, Fluid Responsive with Dual Theme Support
   ========================================================================== */

/* --- CSS Variables & Theme Tokens --- */
:root {
  /* Color Scheme declaration for modern browser UA widgets */
  color-scheme: dark;

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

  /* Dark Theme (Default) */
  --bg-base: #0a0e1a;
  --bg-surface: #0f172a;
  --glass-bg: rgba(255, 255, 255, 0.07);
  --glass-bg-hover: rgba(255, 255, 255, 0.12);
  --glass-card: rgba(17, 24, 39, 0.65);
  --glass-card-nested: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-hover: rgba(255, 255, 255, 0.28);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
  --glass-blur: blur(20px) saturate(190%);
  --glass-modal-bg: rgba(13, 18, 30, 0.85);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #0891b2 100%);
  --accent-glow: 0 0 24px rgba(99, 102, 241, 0.4);

  --badge-bg: rgba(99, 102, 241, 0.2);
  --badge-text: #a5b4fc;
  --badge-border: rgba(99, 102, 241, 0.4);

  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.15);
  --input-focus-border: #6366f1;

  /* Ambient Mesh Orbs */
  --orb-1: #6366f1;
  --orb-2: #06b6d4;
  --orb-3: #d946ef;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme */
[data-theme="light"] {
  color-scheme: light;

  --bg-base: #f1f5f9;
  --bg-surface: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-card: rgba(255, 255, 255, 0.68);
  --glass-card-nested: rgba(255, 255, 255, 0.5);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-border-hover: rgba(99, 102, 241, 0.4);
  --glass-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --glass-blur: blur(24px) saturate(180%);
  --glass-modal-bg: rgba(255, 255, 255, 0.92);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-primary: #4f46e5;
  --accent-secondary: #0891b2;
  --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #0891b2 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4338ca 0%, #0e7490 100%);
  --accent-glow: 0 0 20px rgba(79, 70, 229, 0.25);

  --badge-bg: rgba(79, 70, 229, 0.1);
  --badge-text: #4338ca;
  --badge-border: rgba(79, 70, 229, 0.25);

  --input-bg: rgba(255, 255, 255, 0.85);
  --input-border: rgba(203, 213, 225, 0.8);
  --input-focus-border: #4f46e5;

  /* Ambient Mesh Orbs (Light pastel variants) */
  --orb-1: #c7d2fe;
  --orb-2: #bae6fd;
  --orb-3: #f5d0fe;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* --- Ambient Floating Mesh Background --- */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  will-change: transform;
  transition: background var(--transition-normal), opacity var(--transition-normal);
}

.orb-1 {
  width: 550px;
  height: 550px;
  top: -100px;
  left: -100px;
  background: var(--orb-1);
  animation: floatOrb1 22s ease-in-out infinite alternate;
}

.orb-2 {
  width: 500px;
  height: 500px;
  top: 40%;
  right: -100px;
  background: var(--orb-2);
  animation: floatOrb2 25s ease-in-out infinite alternate;
}

.orb-3 {
  width: 450px;
  height: 450px;
  bottom: -80px;
  left: 30%;
  background: var(--orb-3);
  animation: floatOrb3 20s ease-in-out infinite alternate;
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(120px, 80px) scale(1.15); }
  100% { transform: translate(40px, 140px) scale(0.95); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-100px, -60px) scale(1.1); }
  100% { transform: translate(-50px, 100px) scale(0.9); }
}

@keyframes floatOrb3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(80px, -90px) scale(1.12); }
  100% { transform: translate(-70px, -40px) scale(0.92); }
}

/* --- Common Glass Utility Classes --- */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
}

.glass-card {
  background: var(--glass-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 18px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px 0 rgba(0, 0, 0, 0.25);
}

.glass-card-nested {
  background: var(--glass-card-nested);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
}

/* --- Layout Container --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* --- Header & Navigation Bar --- */
.site-header {
  position: sticky;
  top: 1rem;
  z-index: 100;
  margin-bottom: 2rem;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  border-radius: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--accent-glow);
}

/* Desktop Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}

/* Nav Actions Group */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Glass Buttons & Controls */
.btn-icon {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}

.btn-icon:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
}

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

/* Cart Badge */
.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  padding: 0 4px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-fast);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  overflow: hidden;
}

.theme-icon-sun {
  display: none;
}
.theme-icon-moon {
  display: block;
}

[data-theme="light"] .theme-icon-sun {
  display: block;
}
[data-theme="light"] .theme-icon-moon {
  display: none;
}

/* User Auth Profile / Login Button in Nav */
.auth-btn-container {
  display: flex;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-gradient);
  color: #ffffff;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--accent-glow);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
  transform: translateY(-2px);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  padding: 0.65rem 1.25rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
}

.user-profile-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.35rem 0.85rem 0.35rem 0.45rem;
  border-radius: 20px;
  cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--accent-primary);
}

.user-name-text {
  font-size: 0.9rem;
  font-weight: 600;
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* User Menu Dropdown */
.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 1.5rem;
  width: 220px;
  padding: 0.75rem;
  border-radius: 16px;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 105;
}

.user-menu-dropdown.active {
  display: flex;
  animation: fadeInDown 0.2s ease-out;
}

.user-dropdown-header {
  padding: 0.5rem 0.5rem 0.75rem;
  border-bottom: 1px solid var(--glass-border);
}

.user-dropdown-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.user-dropdown-email {
  font-size: 0.8rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
  background: none;
  border: none;
  text-align: left;
  width: 100%;
  transition: background var(--transition-fast);
}

.user-dropdown-item:hover {
  background: var(--glass-bg-hover);
}

.user-dropdown-item.danger {
  color: #ef4444;
}

/* Hamburger Menu Button (Mobile) */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 9px;
  border-radius: 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  z-index: 102;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger-btn.active .line-top {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.active .line-mid {
  opacity: 0;
}
.hamburger-btn.active .line-bot {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Navigation Drawer --- */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 82%;
  max-width: 360px;
  height: 100vh;
  background: var(--glass-modal-bg);
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  border-left: 1px solid var(--glass-border);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.4);
  z-index: 160;
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.5rem;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--glass-border);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.8rem;
  border-radius: 12px;
  transition: background var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: var(--glass-bg-hover);
  color: var(--accent-primary);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 500;
  font-size: 0.95rem;
}

/* --- Hero Section --- */
.hero-section {
  padding: 3rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card-preview {
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.hero-preview-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 1.25rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.floating-glass-pill {
  position: absolute;
  bottom: 2.75rem;
  right: 2.75rem;
  padding: 0.65rem 1.25rem;
  background: var(--glass-modal-bg);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--glass-shadow);
}

/* --- Catalog & Filter Controls --- */
.catalog-section {
  padding: 2rem 0 5rem;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Search & Category Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  padding: 1rem 1.25rem;
  border-radius: 18px;
}

.category-pills {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.category-pills::-webkit-scrollbar {
  display: none;
}

.category-btn {
  background: var(--glass-card-nested);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 24px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.category-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.category-btn.active {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  box-shadow: var(--accent-glow);
}

.search-box-wrapper {
  position: relative;
  min-width: 240px;
}

.search-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  padding: 0.6rem 1rem 0.6rem 2.4rem;
  border-radius: 12px;
  font-size: 16px; /* Kept at/above 16px so mobile browsers don't auto-zoom on focus */
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-icon-inside {
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* --- Products Grid --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.product-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card-badge {
  position: absolute;
  top: 1.75rem;
  left: 1.75rem;
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.product-img-wrapper {
  width: 100%;
  height: 230px;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 1.25rem;
  background: var(--glass-card-nested);
  position: relative;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img {
  transform: scale(1.06);
}

.product-category-tag {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-secondary);
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.product-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: #f59e0b;
  margin-bottom: 0.75rem;
}

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

.product-card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
}

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

.current-price {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
}

.original-price {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.btn-add-cart {
  background: var(--accent-gradient);
  color: #ffffff;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-add-cart:hover {
  box-shadow: var(--accent-glow);
  transform: translateY(-2px);
}

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

/* --- Slide-Out Shopping Cart Drawer --- */
.cart-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  z-index: 180;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.cart-drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 90%;
  max-width: 440px;
  height: 100vh;
  background: var(--glass-modal-bg);
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  border-left: 1px solid var(--glass-border);
  box-shadow: -10px 0 50px rgba(0, 0, 0, 0.4);
  z-index: 190;
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
}

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

.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--glass-border);
}

.cart-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.shipping-meter-box {
  margin: 1.25rem 0;
  padding: 0.85rem 1rem;
  border-radius: 12px;
}

.shipping-meter-text {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.progress-track {
  width: 100%;
  height: 6px;
  background: var(--glass-card-nested);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 3px;
  width: 0%;
  transition: width 0.4s ease;
}

.cart-items-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-right: 4px;
}

.cart-item {
  display: flex;
  gap: 1rem;
  padding: 0.85rem;
  align-items: center;
}

.cart-item-img {
  width: 70px;
  height: 70px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

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

.cart-item-category {
  font-size: 0.72rem;
  color: var(--accent-secondary);
  font-weight: 600;
  text-transform: uppercase;
}

.cart-item-title {
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.cart-item-price {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.quantity-stepper {
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  overflow: hidden;
}

.btn-step {
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.btn-step:hover {
  background: var(--glass-bg-hover);
}

.quantity-value {
  padding: 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.btn-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: color var(--transition-fast);
}

.btn-remove:hover {
  color: #ef4444;
}

.cart-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 60%;
  text-align: center;
  color: var(--text-secondary);
  gap: 1rem;
}

.cart-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.cart-summary-row.total {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.btn-checkout {
  width: 100%;
  padding: 0.85rem;
  font-size: 1rem;
  justify-content: center;
}

/* --- Authentication Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.auth-modal-card {
  width: 100%;
  max-width: 440px;
  padding: 2.25rem;
  position: relative;
  background: var(--glass-modal-bg);
  border-radius: 24px;
  transform: translateY(20px) scale(0.96);
  transition: transform var(--transition-normal);
}

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

.btn-close-modal {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
}

.auth-tabs {
  display: flex;
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 1.75rem;
  gap: 4px;
}

.auth-tab-btn {
  flex: 1;
  padding: 0.55rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab-btn.active {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Google Sign-In Button */
.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: #ffffff;
  color: #1f2937;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  margin-bottom: 1.25rem;
}

.btn-google:hover {
  background: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1.25rem;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--glass-border);
}
.divider span {
  padding: 0 0.75rem;
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  border-radius: 10px;
  font-size: 16px; /* Kept at/above 16px so mobile browsers don't auto-zoom on focus */
  outline: none;
  transition: border-color var(--transition-fast);
}

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

.auth-error-banner {
  padding: 0.65rem 1rem;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  display: none;
}

.auth-error-banner.active {
  display: block;
}

/* Demo Status Pill in Modal */
.demo-mode-pill {
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
  font-size: 0.78rem;
  margin-bottom: 1.25rem;
  line-height: 1.4;
}

/* --- Toast Notification System --- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 0.85rem 1.25rem;
  border-radius: 16px;
  background: var(--glass-modal-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 360px;
}

.toast.toast-success {
  border-left: 4px solid #10b981;
}

.toast.toast-info {
  border-left: 4px solid var(--accent-primary);
}

.toast.toast-warning {
  border-left: 4px solid #f59e0b;
}

/* --- Footer --- */
.site-footer {
  margin-top: 5rem;
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--glass-border);
  position: relative;
  z-index: 1;
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.75rem;
  max-width: 300px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Keyframe Animations --- */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hidden {
  display: none !important;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-preview-img {
    height: 260px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* Critical Mobile Breakpoint: Collapse Nav Links into Menu Icon */
@media (max-width: 1024px) {
  .nav-links {
    display: none; /* Hidden on mobile screen */
  }

  .nav-auth-desktop {
    display: none; /* Auth actions move to inside the mobile drawer */
  }

  .hamburger-btn {
    display: flex; /* Menu button visible on mobile screen */
  }

  /* Only the hamburger stays in the mobile top bar — theme toggle and
     cart move into the drawer so the bar itself shows just the 3-line icon. */
  .theme-toggle-btn,
  #cart-toggle-btn {
    display: none;
  }

  .site-header {
    top: 0.5rem;
  }

  .navbar {
    padding: 0.75rem 1rem;
    border-radius: 18px;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box-wrapper {
    width: 100%;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }
  .toast {
    max-width: 100%;
  }
}