/**
 * Zara Stationary - School Stationery Store
 * Main Stylesheet - Mobile First Responsive Design
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary: #f59e0b;
  --secondary-dark: #d97706;
  --accent: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;

  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 12px 28px rgba(37, 99, 235, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-body: "Nunito", sans-serif;
  --font-heading: "Poppins", sans-serif;

  --header-height: 70px;
  --transition: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

body.nav-open {
  overflow: hidden;
}

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

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

ul {
  list-style: none;
}

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

.hidden {
  display: none !important;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
}

.text-highlight {
  color: var(--secondary);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

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

.btn-secondary {
  background: var(--secondary);
  color: #fff;
  border-color: var(--secondary);
}

.btn-secondary:hover {
  background: var(--secondary-dark);
  transform: translateY(-2px);
}

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

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

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

.btn-block {
  width: 100%;
}

.btn-text {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
}

.btn-text:hover {
  text-decoration: underline;
}

.btn.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.8;
}

.btn.loading::after {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: 0.5rem;
}

/* ============================================
   Floating WhatsApp Button
   ============================================ */
.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 1100;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: #fff;
  box-shadow: 0 10px 24px rgba(18, 140, 126, 0.35);
  transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 30px rgba(18, 140, 126, 0.45);
}

.whatsapp-float i {
  font-size: 1.6rem;
}

@media (min-width: 768px) {
  .whatsapp-float {
    right: 1.25rem;
    bottom: 1.25rem;
    width: 64px;
    height: 64px;
  }
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}

.logo i {
  font-size: 1.5rem;
  color: var(--secondary);
}

.logo strong {
  color: var(--text);
}

/* Search Bar */
.nav-search-form {
  display: none;
  flex: 1;
  max-width: 400px;
  position: relative;
}

.nav-search-form input {
  width: 100%;
  padding: 0.6rem 2.5rem 0.6rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-full);
  outline: none;
  transition: border-color var(--transition);
}

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

.nav-search-form button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: #fff;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Nav Menu */
.nav-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-card);
  flex-direction: column;
  padding: 1.5rem;
  gap: 0.5rem;
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 999;
  overflow-y: auto;
}

.nav-menu.active {
  transform: translateX(0);
}

.nav-menu a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text);
  transition: all var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  background: var(--primary-light);
  color: var(--primary);
}

.cart-link {
  position: relative;
}

.cart-count {
  display: none;
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--danger);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  padding: 3rem 0;
  overflow: hidden;
  min-height: 500px;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #eff6ff 0%, #fef3c7 50%, #ecfdf5 100%);
  z-index: 0;
}

.hero-bg::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 150%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary);
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-text h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.hero-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-images {
  position: relative;
  height: 300px;
  display: none;
}

.hero-img {
  position: absolute;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  transition: transform var(--transition);
}

.hero-img-1 {
  width: 220px;
  height: 220px;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.hero-img-2 {
  width: 160px;
  height: 160px;
  top: 0;
  left: 10%;
  z-index: 2;
  animation: float 3s ease-in-out infinite;
}

.hero-img-3 {
  width: 160px;
  height: 160px;
  bottom: 0;
  right: 10%;
  z-index: 2;
  animation: float 3s ease-in-out infinite 1.5s;
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: 3rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: 1.75rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.section-header h2 i {
  color: var(--secondary);
  margin-right: 0.5rem;
}

.section-header p {
  color: var(--text-muted);
}

.section-footer {
  text-align: center;
  margin-top: 2rem;
}

.page-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 2.5rem 0;
  text-align: center;
}

.page-banner h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.page-banner p {
  opacity: 0.9;
}

/* ============================================
   Product Cards
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

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

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

.product-card:hover .product-image-wrap img {
  transform: scale(1.08);
}

.product-category-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

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

.product-name {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.product-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex: 1;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.product-price {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
}

.stock-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.in-stock {
  background: #d1fae5;
  color: #065f46;
}

.low-stock {
  background: #fef3c7;
  color: #92400e;
}

.out-of-stock {
  background: #fee2e2;
  color: #991b1b;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.qty-selector {
  display: flex;
  align-items: center;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  width: fit-content;
}

.qty-btn {
  width: 36px;
  height: 36px;
  background: var(--bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: background var(--transition);
}

.qty-btn:hover:not(:disabled) {
  background: var(--primary-light);
  color: var(--primary);
}

.qty-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.qty-input {
  width: 48px;
  text-align: center;
  border: none;
  border-left: 2px solid var(--border);
  border-right: 2px solid var(--border);
  padding: 0.5rem;
  outline: none;
  -moz-appearance: textfield;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.add-to-cart-btn {
  width: 100%;
}

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

/* ============================================
   Categories
   ============================================ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.category-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 2px solid transparent;
}

.category-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.category-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 0.75rem;
  transition: all var(--transition);
}

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

.category-card h3 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.category-card span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   Features
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-light), #fef3c7);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.feature-card h3 {
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
  display: grid;
  gap: 2rem;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info h2 i {
  color: var(--primary);
}

.contact-info > p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.contact-list i {
  color: var(--primary);
  margin-top: 4px;
  width: 20px;
}

.contact-form,
.checkout-form-wrap .form-section {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition);
  background: #fff;
}

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

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

.form-error {
  display: none;
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.form-error.visible {
  display: block;
}

.form-row {
  display: grid;
  gap: 1rem;
}

.form-section h2 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border);
}

.form-section h2 i {
  color: var(--primary);
  margin-right: 0.5rem;
}

/* ============================================
   Products Page - Filters
   ============================================ */
.products-layout {
  display: grid;
  gap: 2rem;
}

.filters-sidebar {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  height: fit-content;
  display: none;
}

.filters-sidebar.active {
  display: block;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 998;
  overflow-y: auto;
  border-radius: 0;
}

.filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.filters-header h3 i {
  color: var(--primary);
  margin-right: 0.5rem;
}

.filter-group {
  margin-bottom: 1.5rem;
}

.filter-group > label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.4rem 0;
}

.filter-checkbox input {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

.search-input-wrap {
  position: relative;
}

.search-input-wrap i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-input-wrap input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
}

.search-input-wrap input:focus {
  border-color: var(--primary);
}

.price-range {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.price-range input {
  flex: 1;
  padding: 0.6rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  min-width: 0;
}

.products-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.products-toolbar p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.filter-toggle {
  display: flex;
}

.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.no-results i {
  font-size: 3rem;
  color: var(--border);
  margin-bottom: 1rem;
}

.no-results h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
}

.no-results .btn {
  margin-top: 1.5rem;
}

/* ============================================
   Cart Page
   ============================================ */
.cart-empty .empty-state {
  text-align: center;
  padding: 4rem 1rem;
}

.empty-state i {
  font-size: 4rem;
  color: var(--border);
  margin-bottom: 1.5rem;
}

.empty-state h2 {
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.cart-content.hidden {
  display: none;
}

.cart-layout {
  display: grid;
  gap: 2rem;
}

.cart-items-wrap {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.cart-header-row {
  display: none;
  grid-template-columns: 2fr 1fr 1fr 40px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
}

.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

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

.cart-item-image img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.cart-item-name {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

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

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  grid-column: 1 / -1;
  justify-content: flex-start;
  padding-left: 0;
}

.cart-qty-value {
  font-weight: 700;
  min-width: 24px;
  text-align: center;
}

.cart-item-subtotal {
  font-weight: 700;
  color: var(--primary);
  font-size: 1.05rem;
}

.cart-remove-btn {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 0.5rem;
  font-size: 1rem;
  transition: transform var(--transition);
  grid-column: 2;
  justify-self: end;
}

.cart-remove-btn:hover {
  transform: scale(1.15);
}

.cart-summary {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  height: fit-content;
}

.cart-summary h3 {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border);
}

.cart-summary h3 i {
  color: var(--primary);
  margin-right: 0.5rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  font-size: 0.95rem;
}

.summary-row.total {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  border-top: 2px solid var(--border);
  margin-top: 0.5rem;
  padding-top: 1rem;
}

.cart-summary .btn {
  margin-top: 1rem;
}

/* ============================================
   Checkout Page
   ============================================ */
.checkout-layout {
  display: grid;
  gap: 2rem;
}

.checkout-form-wrap {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.payment-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.payment-option {
  cursor: pointer;
}

.payment-option input {
  display: none;
}

.payment-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-weight: 600;
}

.payment-card i {
  font-size: 1.5rem;
  color: var(--primary);
  width: 32px;
  text-align: center;
}

.payment-option input:checked + .payment-card {
  border-color: var(--primary);
  background: var(--primary-light);
}

.payment-option:hover .payment-card {
  border-color: var(--primary);
}

.checkout-summary {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  height: fit-content;
}

.checkout-summary h3 {
  margin-bottom: 1.25rem;
}

.checkout-summary h3 i {
  color: var(--primary);
  margin-right: 0.5rem;
}

.checkout-items {
  max-height: 280px;
  overflow-y: auto;
  margin-bottom: 1rem;
}

.checkout-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.checkout-item img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.checkout-item-name {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.checkout-item-qty {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.checkout-item-price {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--primary);
  white-space: nowrap;
}

.summary-divider {
  height: 2px;
  background: var(--border);
  margin: 0.5rem 0;
}

.checkout-summary .btn {
  margin-top: 0.75rem;
}

/* ============================================
   Success Page
   ============================================ */
.success-section {
  padding: 3rem 0 4rem;
}

.success-card {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: #d1fae5;
  color: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 1.5rem;
  animation: scaleIn 0.5s ease;
}

.success-card h1 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.success-message {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.order-details {
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.order-detail-row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.order-detail-row:last-child {
  border-bottom: none;
}

.order-detail-row .label {
  color: var(--text-muted);
}

.order-detail-row .value {
  font-weight: 600;
}

.order-detail-row.highlight {
  background: var(--primary-light);
  margin: 0.5rem -1.25rem -1.25rem;
  padding: 1rem 1.25rem;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border-bottom: none;
}

.order-id {
  color: var(--primary);
  font-family: monospace;
  font-size: 0.9rem;
}

.total-amount {
  font-size: 1.25rem;
  color: var(--primary);
}

.success-items-wrap {
  text-align: left;
  margin-bottom: 2rem;
}

.success-items-wrap h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.success-items-wrap h3 i {
  color: var(--primary);
  margin-right: 0.5rem;
}

.success-items-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  border-bottom: 1px dashed var(--border);
}

.success-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: #1e293b;
  color: #cbd5e1;
  padding: 3rem 0 0;
  margin-top: auto;
}

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

.footer-col h3,
.footer-col h4 {
  color: #fff;
  margin-bottom: 1rem;
}

.footer-col h3 i {
  color: var(--secondary);
  margin-right: 0.5rem;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.footer-contact i {
  color: var(--secondary);
  margin-top: 4px;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all var(--transition);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 0;
  text-align: center;
  font-size: 0.85rem;
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  border-left: 4px solid var(--success);
}

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

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

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

.toast-error {
  border-left-color: var(--danger);
}

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

.toast-info {
  border-left-color: var(--primary);
}

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

/* ============================================
   Page Loader
   ============================================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.page-loader.active {
  opacity: 1;
  visibility: visible;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ============================================
   Animations
   ============================================ */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
  opacity: 0;
}

/* ============================================
   Tablet Breakpoint (768px+)
   ============================================ */
@media (min-width: 768px) {
  .hero-text h1 {
    font-size: 2.5rem;
  }

  .hero-images {
    display: block;
  }

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

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

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

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

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

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

  .form-row.three-col {
    grid-template-columns: 1fr 1fr 1fr;
  }

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

  .cart-layout {
    grid-template-columns: 1fr 340px;
  }

  .cart-item {
    grid-template-columns: 80px 2fr 120px 100px 40px;
  }

  .cart-item-qty {
    grid-column: auto;
    justify-content: center;
  }

  .cart-remove-btn {
    grid-column: auto;
  }

  .cart-header-row {
    display: grid;
  }

  .cart-item-details {
    grid-column: auto;
  }

  .cart-item-subtotal {
    text-align: right;
  }

  .checkout-layout {
    grid-template-columns: 1fr 380px;
  }

  .success-actions {
    flex-direction: row;
    justify-content: center;
  }

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

  .filters-sidebar.active {
    position: static;
    display: block;
    border-radius: var(--radius-md);
  }

  .filter-toggle {
    display: none;
  }

  .products-layout {
    grid-template-columns: 260px 1fr;
  }

  .filters-sidebar {
    display: block;
  }
}

/* ============================================
   Desktop Breakpoint (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .nav-search-form {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .nav-menu {
    display: flex;
    position: static;
    flex-direction: row;
    padding: 0;
    transform: none;
    background: transparent;
    gap: 0.25rem;
    overflow: visible;
  }

  .nav-menu a {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }

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

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

  .hero-text h1 {
    font-size: 3rem;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }

  .section {
    padding: 4rem 0;
  }
}

/* ============================================
   Large Desktop (1200px+)
   ============================================ */
@media (min-width: 1200px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-img-1 {
    width: 280px;
    height: 280px;
  }
}