/* ============================================
   PitLane Threads — Store Styles
   Design Language: Dark + Cyan (Slate Grey/Cyan Blue/White)
   ============================================ */

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

:root {
  --cyan: #06B6D4;
  --dark: #0F172A;
  --darker: #0A0F1C;
  --off-white: #F1F5F9;
  --grey: #94A3B8;
  --accent: #22D3EE;
  --border: rgba(6, 182, 212, 0.08);
  --border-hover: rgba(6, 182, 212, 0.2);
  --surface: rgba(6, 182, 212, 0.03);
  --surface-hover: rgba(6, 182, 212, 0.06);
  --success: #10B981;
  --error: #EF4444;
  --warning: #F59E0B;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--dark);
  color: var(--off-white);
  overflow-x: hidden;
  min-height: 100vh;
}

.grain-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.5px;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--off-white); }

/* ---- Navigation ---- */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: var(--off-white);
  text-decoration: none;
}
.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--off-white); }

.cart-link {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cart-badge {
  background: var(--accent);
  color: var(--dark);
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}
.cart-badge.bump {
  transform: scale(1.3);
}
.cart-badge:empty,
.cart-badge[data-count="0"] { opacity: 0.3; }

/* ---- Main Content ---- */
main {
  padding-top: 80px;
  min-height: calc(100vh - 80px);
}

/* ---- Page Header ---- */
.page-header {
  padding: 60px 48px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.page-header h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -2px;
}

.page-header h1 .accent { color: var(--accent); }

.page-header .subtitle {
  font-size: 16px;
  color: var(--grey);
  margin-top: 12px;
  font-weight: 300;
}

/* ---- Category Filter ---- */
.category-filter {
  padding: 0 48px 40px;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 10px 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--grey);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover {
  border-color: var(--border-hover);
  color: var(--off-white);
  background: var(--surface);
}
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(34, 211, 238, 0.05);
}

/* ---- Product Grid ---- */
.product-grid {
  padding: 0 48px 80px;
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.product-card {
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: block;
  color: inherit;
  text-decoration: none;
}
.product-card:hover {
  border-color: var(--border-hover);
  background: var(--surface-hover);
  transform: translateY(-2px);
  color: inherit;
}

.product-card .card-image {
  width: 100%;
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.product-card .card-image .product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .product-img {
  transform: scale(1.05);
}

.product-card .card-image .placeholder-art {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.product-card .card-image .placeholder-art .art-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 140px;
  font-weight: 700;
  color: rgba(6, 182, 212, 0.06);
  line-height: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.product-card .card-image .placeholder-art .art-type {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.6;
  z-index: 1;
}

.product-card .card-image .placeholder-art .art-lines {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.product-card .card-image .placeholder-art .art-lines .line {
  position: absolute;
  background: rgba(6, 182, 212, 0.04);
  border-radius: 1px;
}

.card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 6px 12px;
  z-index: 2;
}
.card-badge.limited {
  background: var(--accent);
  color: var(--dark);
}
.card-badge.new {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.card-info {
  padding: 20px 24px 24px;
}

.card-category {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.card-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}

.card-type {
  font-size: 13px;
  color: var(--grey);
  margin-bottom: 12px;
  font-weight: 300;
}

.card-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--off-white);
}
.card-price .compare {
  font-size: 14px;
  color: var(--grey);
  text-decoration: line-through;
  margin-left: 8px;
  font-weight: 400;
}

/* ---- Product Detail ---- */
.product-detail {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 48px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.product-gallery {
  position: sticky;
  top: 120px;
}

.gallery-main {
  width: 100%;
  aspect-ratio: 4/5;
  border: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  overflow: hidden;
}

.gallery-main .product-img-detail {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-main .placeholder-art {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gallery-main .placeholder-art .art-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 200px;
  font-weight: 700;
  color: rgba(6, 182, 212, 0.06);
  line-height: 1;
}

.gallery-thumbs {
  display: flex;
  gap: 12px;
}

.gallery-thumb {
  width: 80px;
  height: 80px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.gallery-thumb:hover,
.gallery-thumb.active {
  border-color: var(--accent);
}

.gallery-thumb .thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info {
  padding-top: 20px;
}

.product-breadcrumb {
  font-size: 12px;
  color: var(--grey);
  margin-bottom: 16px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.product-breadcrumb a {
  color: var(--grey);
  font-weight: 400;
}
.product-breadcrumb a:hover { color: var(--accent); }
.product-breadcrumb .sep { opacity: 0.3; }

.product-info h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.product-info .product-type-label {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.product-info .price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 32px;
}
.product-info .price .compare {
  font-size: 18px;
  color: var(--grey);
  text-decoration: line-through;
  margin-left: 12px;
  font-weight: 400;
}

.product-info .description {
  font-size: 16px;
  line-height: 1.8;
  color: var(--grey);
  font-weight: 300;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

/* Size selector */
.size-selector {
  margin-bottom: 32px;
}

.size-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--grey);
  margin-bottom: 12px;
}

.size-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.size-btn {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  width: 56px;
  height: 48px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--grey);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.size-btn:hover {
  border-color: var(--border-hover);
  color: var(--off-white);
}
.size-btn.selected {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(34, 211, 238, 0.05);
}

/* Add to cart */
.add-to-cart-btn {
  font-family: 'Space Grotesk', sans-serif;
  width: 100%;
  padding: 18px 32px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 16px;
  background: var(--accent);
  color: var(--dark);
}
.add-to-cart-btn:hover {
  background: var(--off-white);
  transform: translateY(-1px);
}
.add-to-cart-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}
.add-to-cart-btn.added {
  background: var(--success);
  color: white;
}

.product-meta {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.meta-item {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--grey);
  margin-bottom: 12px;
  font-weight: 300;
}
.meta-item strong {
  color: var(--off-white);
  font-weight: 500;
  min-width: 100px;
}

/* ---- Cart Page ---- */
.cart-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 48px 80px;
}

.cart-empty {
  text-align: center;
  padding: 80px 0;
}
.cart-empty h2 {
  font-size: 28px;
  margin-bottom: 16px;
}
.cart-empty p {
  color: var(--grey);
  font-size: 16px;
  margin-bottom: 32px;
  font-weight: 300;
}

.cart-items {
  margin-bottom: 40px;
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto auto;
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.cart-item-image {
  width: 100px;
  height: 120px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: rgba(6, 182, 212, 0.1);
}

.cart-item-details h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.cart-item-details .cart-item-size {
  font-size: 13px;
  color: var(--grey);
  margin-bottom: 8px;
}
.cart-item-details .cart-item-remove {
  font-size: 12px;
  color: var(--grey);
  cursor: pointer;
  border: none;
  background: none;
  font-family: 'Outfit', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0;
}
.cart-item-details .cart-item-remove:hover { color: var(--error); }

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 12px;
}
.qty-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--off-white);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  transition: all 0.2s;
}
.qty-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.qty-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  min-width: 24px;
  text-align: center;
}

.cart-item-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  text-align: right;
  min-width: 80px;
}

/* Cart Summary */
.cart-summary {
  border: 1px solid var(--border);
  padding: 32px;
  background: var(--surface);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 15px;
}
.summary-row .label { color: var(--grey); font-weight: 300; }
.summary-row .value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}

.summary-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.summary-total {
  display: flex;
  justify-content: space-between;
  font-size: 20px;
  margin-bottom: 24px;
}
.summary-total .label {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}
.summary-total .value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--accent);
}

.checkout-btn {
  font-family: 'Space Grotesk', sans-serif;
  width: 100%;
  padding: 18px 32px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  border: none;
  background: var(--accent);
  color: var(--dark);
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  display: block;
}
.checkout-btn:hover {
  background: var(--off-white);
  color: var(--dark);
  transform: translateY(-1px);
}

/* ---- Checkout Page ---- */
.checkout-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 48px 80px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}

.checkout-form h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: -0.3px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--grey);
  margin-bottom: 8px;
  font-family: 'Space Grotesk', sans-serif;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  background: var(--darker);
  border: 1px solid var(--border);
  color: var(--off-white);
  transition: border-color 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(148, 163, 184, 0.4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-error {
  color: var(--error);
  font-size: 12px;
  margin-top: 6px;
}

.place-order-btn {
  font-family: 'Space Grotesk', sans-serif;
  width: 100%;
  padding: 18px 32px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  border: none;
  background: var(--accent);
  color: var(--dark);
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 8px;
}
.place-order-btn:hover {
  background: var(--off-white);
  transform: translateY(-1px);
}
.place-order-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* Checkout summary sidebar */
.checkout-summary {
  position: sticky;
  top: 120px;
}

.checkout-summary h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
}

.checkout-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.checkout-item-thumb {
  width: 64px;
  height: 80px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: rgba(6, 182, 212, 0.1);
  flex-shrink: 0;
}

.checkout-item-info {
  flex: 1;
}
.checkout-item-info h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
.checkout-item-info p {
  font-size: 12px;
  color: var(--grey);
}
.checkout-item-price {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}

/* ---- Order Confirmation ---- */
.order-confirmation {
  max-width: 700px;
  margin: 0 auto;
  padding: 60px 48px 100px;
  text-align: center;
}

.order-check {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.1);
  border: 2px solid var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 32px;
  font-size: 36px;
}

.order-confirmation h1 {
  font-size: 32px;
  margin-bottom: 12px;
}

.order-confirmation .order-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.order-confirmation .order-message {
  font-size: 16px;
  color: var(--grey);
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 48px;
}

.order-details-box {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 32px;
  text-align: left;
  margin-bottom: 40px;
}

.order-details-box h3 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 20px;
}

.order-detail-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
}
.order-detail-row .label { color: var(--grey); }
.order-detail-row .value { font-weight: 500; }

.continue-btn {
  font-family: 'Space Grotesk', sans-serif;
  padding: 16px 40px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--off-white);
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}
.continue-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Shared Components ---- */
.stripe-divider {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 20%, var(--cyan) 50%, var(--accent) 80%, transparent 100%);
  opacity: 0.4;
}

.section-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: 600;
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 16px 24px;
  background: var(--darker);
  border: 1px solid var(--accent);
  color: var(--off-white);
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 12px;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}
.toast .toast-icon {
  color: var(--accent);
  font-size: 18px;
}

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 48px 40px;
  background: var(--darker);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-inner > .logo {
  display: block;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--grey);
  font-weight: 300;
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin: 48px 0;
}

.footer-col h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--grey);
  margin-bottom: 10px;
  font-weight: 300;
}
.footer-col a:hover { color: var(--off-white); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--grey);
  letter-spacing: 1px;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 24px 24px 60px;
  }
  .product-gallery { position: static; }
  .checkout-page {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 24px 24px 60px;
  }
  .checkout-summary { position: static; }
}

@media (max-width: 768px) {
  nav { padding: 16px 24px; }
  .nav-links { gap: 20px; }
  .nav-links a { font-size: 12px; letter-spacing: 1px; }
  .page-header { padding: 40px 24px 24px; }
  .category-filter { padding: 0 24px 24px; }
  .product-grid {
    padding: 0 24px 60px;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
  }
  .cart-page { padding: 24px 24px 60px; }
  .cart-item {
    grid-template-columns: 80px 1fr;
    gap: 16px;
  }
  .cart-item-qty { grid-column: 1 / -1; justify-self: start; }
  .cart-item-price { grid-column: 1 / -1; justify-self: end; }
  footer { padding: 40px 24px 24px; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 24px; }
  .order-confirmation { padding: 40px 24px 60px; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}