:root {
  --bg: #0c111b;
  --panel: #0f1626;
  --muted: #8b95a7;
  --text: #e6edf6;
  --brand: #3b82f6;
  --brand2: #60a5fa;
  --danger: #ef4444;
  --success: #10b981;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -100px, rgba(59,130,246,.15), transparent 50%), var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: saturate(140%) blur(10px);
  background: rgba(12,17,27,.95);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.logo {
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .2px;
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,.05);
}

.nav-link.active {
  color: var(--text);
  background: rgba(59,130,246,.15);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cart-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  position: relative;
}

.cart-icon-btn:hover {
  background: rgba(59,130,246,.15);
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59,130,246,.2);
}

.cart-icon-btn.active {
  background: rgba(59,130,246,.2);
  border-color: var(--brand);
}

.cart-icon {
  font-size: 20px;
}

.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--brand);
  color: #0b1220;
  font-weight: 700;
  font-size: 12px;
}


/* Hero Home */
.hero-home {
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-home::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(59,130,246,.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -.8px;
  margin: 0 0 20px;
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff 0%, #e6edf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 4px 8px rgba(0,0,0,.3);
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--muted);
  margin: 0 0 32px;
  font-weight: 400;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 60px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--brand);
}

.stat-label {
  color: var(--muted);
  font-size: 14px;
}

/* Section */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  margin: 0 0 16px;
  background: linear-gradient(135deg, #ffffff 0%, #e6edf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--muted);
  font-size: 20px;
  margin: 0;
  font-weight: 400;
  line-height: 1.5;
}

/* Features */
.features-section {
  background: linear-gradient(135deg, rgba(255,255,255,.03) 0%, rgba(59,130,246,.02) 100%);
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
  position: relative;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(59,130,246,.05) 0%, transparent 50%),
              radial-gradient(circle at 80% 50%, rgba(59,130,246,.03) 0%, transparent 50%);
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 16px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.feature-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,.04);
  border-color: rgba(59,130,246,.3);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
}

.feature-icon {
  font-size: 56px;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.3));
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--text);
}

.feature-text {
  color: var(--muted);
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
}

/* Page Main */
.page-main {
  padding-top: 100px;
  min-height: calc(100vh - 200px);
}

.page-header {
  text-align: center;
  padding: 40px 0;
}

.page-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  margin: 0 0 12px;
}

.page-subtitle {
  color: var(--muted);
  font-size: 18px;
  margin: 0;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  max-width: 400px;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  color: var(--text);
  font-size: 16px;
}

.search-input:focus {
  outline: 2px solid rgba(59,130,246,.4);
  outline-offset: 2px;
}

.filter-info {
  color: var(--muted);
}

/* Product Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.card {
  background: linear-gradient(135deg, rgba(255,255,255,.03) 0%, rgba(255,255,255,.01) 100%);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.4s ease;
  backdrop-filter: blur(10px);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(59,130,246,.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  border-color: rgba(59,130,246,.3);
}

.card:hover::before {
  opacity: 1;
}

.thumb {
  height: 220px;
  background: #0e1526;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.thumb-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}

.details {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  position: relative;
  z-index: 1;
}

.details strong {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.product-desc {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
  line-height: 1.6;
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding-top: 8px;
}

.price {
  font-size: 24px;
  font-weight: 800;
  color: var(--brand);
  text-shadow: 0 2px 4px rgba(0,0,0,.2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  text-decoration: none;
  border: 2px solid transparent;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  font-size: 15px;
  background: transparent;
  color: var(--text);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  transition: left 0.5s;
}

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

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
  font-weight: 700;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: white;
  font-weight: 700;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(59,130,246,.4);
  text-shadow: 0 1px 2px rgba(0,0,0,.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(59,130,246,.5);
  background: linear-gradient(135deg, #2563eb, #3b82f6);
}

.btn-secondary {
  background: linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.05));
  border-color: rgba(255,255,255,.2);
  backdrop-filter: blur(10px);
  color: var(--text);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, rgba(255,255,255,.15), rgba(255,255,255,.1));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,.2);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,.3);
  color: var(--text);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(59,130,246,.1);
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59,130,246,.2);
}

.btn-block {
  width: 100%;
}

.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Cart Page */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  margin-bottom: 40px;
}

.cart-main {
  min-width: 0;
}

.cart-items-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cart-item-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 20px;
  align-items: center;
}

.cart-item-image {
  width: 120px;
  height: 120px;
  background: #0e1526;
  border-radius: 12px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.cart-item-image .thumb-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cart-item-details {
  min-width: 0;
}

.cart-item-name {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
}

.cart-item-desc {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 8px;
}

.cart-item-price {
  color: var(--muted);
  font-size: 14px;
}

.cart-item-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.quantity-control {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0e1422;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  padding: 4px;
}

.qty-btn {
  background: transparent;
  border: none;
  color: var(--text);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 6px;
  font-size: 18px;
  transition: all 0.2s;
}

.qty-btn:hover {
  background: rgba(59,130,246,.2);
}

.qty-input {
  width: 50px;
  text-align: center;
  background: transparent;
  border: none;
  color: var(--text);
  font-weight: 600;
}

.cart-item-total {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand);
}

.btn-remove {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: var(--danger);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-remove:hover {
  background: rgba(239,68,68,.2);
}

/* Empty Cart */
.empty-cart {
  text-align: center;
  padding: 80px 20px;
}

.empty-cart-icon {
  font-size: 80px;
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-cart h2 {
  margin: 0 0 12px;
}

/* Cart Sidebar */
.cart-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.summary-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 24px;
}

.summary-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 20px;
}

.summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.summary-divider {
  height: 1px;
  background: rgba(255,255,255,.1);
  margin: 16px 0;
}

.summary-total {
  font-size: 18px;
  margin-top: 8px;
}

/* Checkout */
.checkout-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 40px 0;
  gap: 0;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.4;
}

.step.active {
  opacity: 1;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.step.active .step-number {
  background: var(--brand);
  color: #0b1220;
}

.step-line {
  width: 80px;
  height: 2px;
  background: rgba(255,255,255,.1);
  margin: 0 16px;
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  margin-bottom: 40px;
}

.checkout-main {
  min-width: 0;
}

.checkout-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

/* Forms */
.checkout-form {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 32px;
}

.form-section {
  margin-bottom: 32px;
}

.form-section:last-of-type {
  margin-bottom: 24px;
}

.form-section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: #0e1422;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

/* Shipping Options */
.shipping-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shipping-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: #0e1422;
  border: 2px solid rgba(255,255,255,.08);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.shipping-option:hover {
  background: rgba(59,130,246,.05);
  border-color: rgba(59,130,246,.3);
}

.shipping-option input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.shipping-option input[type="radio"]:checked ~ .shipping-option-content {
  color: var(--brand);
}

.shipping-option:has(input:checked) {
  background: rgba(59,130,246,.1);
  border-color: var(--brand);
}

.shipping-option-content {
  flex: 1;
}

.shipping-option-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.shipping-option-desc {
  font-size: 14px;
  color: var(--muted);
}

/* Order Summary in Checkout */
.order-items-preview {
  margin-bottom: 16px;
  max-height: 300px;
  overflow-y: auto;
}

.order-item-preview {
  display: grid;
  grid-template-columns: 50px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

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

.order-item-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  background: #0e1526;
  border-radius: 8px;
  padding: 4px;
}

.order-item-info {
  min-width: 0;
}

.order-item-name {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
}

.order-item-qty {
  font-size: 12px;
  color: var(--muted);
}

.order-item-price {
  font-weight: 600;
}

/* Order Confirmation */
.confirmation-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 40px 0;
}

.confirmation-icon {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--success), #059669);
  color: white;
  font-size: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  animation: scaleIn 0.5s ease-out;
}

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

.confirmation-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  margin: 0 0 16px;
}

.confirmation-subtitle {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 32px;
}

.order-number {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.3);
  border-radius: 12px;
  margin-bottom: 40px;
}

.order-number strong {
  color: var(--brand);
  font-size: 18px;
}

.confirmation-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  text-align: left;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 20px;
  text-align: left;
}

.order-details-list {
  margin-bottom: 20px;
}

.order-detail-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

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

.order-detail-img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  background: #0e1526;
  border-radius: 10px;
  padding: 8px;
}

.order-detail-info {
  min-width: 0;
}

.order-detail-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.order-detail-qty {
  font-size: 14px;
}

.order-detail-price {
  font-weight: 700;
  font-size: 18px;
  color: var(--brand);
}

.order-summary {
  margin-top: 20px;
}

.next-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.next-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
}

.next-step-icon {
  font-size: 32px;
  width: 50px;
  height: 50px;
  background: rgba(59,130,246,.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.next-step h3 {
  margin: 0 0 4px;
  font-size: 16px;
}

.next-step p {
  margin: 0;
  font-size: 14px;
}

.confirmation-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 80px;
  background: linear-gradient(135deg, rgba(255,255,255,.02) 0%, rgba(59,130,246,.01) 100%);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(59,130,246,.03) 0%, transparent 50%);
  pointer-events: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--text);
}

.footer-link {
  color: var(--muted);
  text-decoration: none;
  transition: all 0.3s ease;
  padding: 4px 0;
  font-size: 15px;
}

.footer-link:hover {
  color: var(--brand);
  transform: translateX(4px);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.08);
  position: relative;
  z-index: 1;
}

/* Notification */
.notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--success);
  color: white;
  padding: 16px 24px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* Utility */
.muted {
  color: var(--muted);
}

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

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

/* Product image tweaks */
.id-p2 { object-fit: contain; object-position: center; }
.id-p5 { object-fit: contain; object-position: center top; transform: scale(.9); }
.id-p6 { object-fit: cover; object-position: center 30%; transform: scale(.9); }
.id-p7 { object-fit: contain; object-position: center; transform: scale(.9); }

/* Responsive */
@media (max-width: 960px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
  
  .cart-layout,
  .checkout-layout {
    grid-template-columns: 1fr;
  }
  
  .checkout-sidebar,
  .cart-sidebar {
    position: static;
  }
  
  .cart-item-card {
    grid-template-columns: 80px 1fr;
    gap: 16px;
  }
  
  .cart-item-actions {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .nav-links {
    justify-content: flex-start;
  }
  
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-stats {
    gap: 32px;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    display: none;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .checkout-steps {
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .step-line {
    display: none;
  }
}