:root {
  --ink: #173d56;
  --paper: #f2f2ec;
  --rule: #9aa4a9;
  --muted: #66737a;
  --brown: #765a30;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: #1d2930;
  background: var(--paper);
  font-family: "Courier New", Courier, monospace;
}
a { color: inherit; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.page-width { width: min(1060px, calc(100% - 48px)); margin-inline: auto; }

.site-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-bottom: 3px solid var(--ink);
}
.wordmark {
  color: var(--ink);
  font: 800 20px Arial, sans-serif;
  letter-spacing: 0;
  text-decoration: none;
}
.site-header nav, .site-footer nav {
  display: flex;
  gap: 20px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.home-page { padding-block: 54px 30px; }
.shop-intro { max-width: 710px; margin-bottom: 44px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--brown);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .11em;
}
.shop-intro h1, .page-title, .product-info h1 {
  margin: 0;
  color: var(--ink);
  font-family: Arial, sans-serif;
  font-weight: 800;
  letter-spacing: 0;
}
.shop-intro h1 { font-size: clamp(38px, 6vw, 67px); line-height: .95; }
.shop-intro p:last-child {
  max-width: 660px;
  margin: 20px 0 0;
  font: 16px/1.6 Arial, sans-serif;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-tile {
  display: block;
  text-decoration: none;
}
.tile-image, .product-photo {
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: #e3e1d8;
}
.tile-image img, .product-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-tile:hover .tile-image img { transform: scale(1.015); }
.tile-image img { transition: transform .18s ease; }
.tile-copy { padding: 14px 1px 4px; }
.tile-copy h2 {
  margin: 0 0 7px;
  color: var(--ink);
  font: 800 20px/1.08 Arial, sans-serif;
}
.tile-copy > p {
  min-height: 40px;
  margin: 0 0 15px;
  font: 13px/1.45 Arial, sans-serif;
}
.tile-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}
.tile-meta span {
  color: var(--brown);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}
.tile-meta b {
  color: var(--ink);
  font: 800 24px/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.back-link {
  display: inline-block;
  margin-bottom: 30px;
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}
.product-page, .cart-page, .checkout-page { padding-block: 42px 30px; }
.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .82fr);
  gap: 55px;
  align-items: start;
}
.product-info { padding-top: 5px; }
.product-info h1 { margin-bottom: 14px; font-size: clamp(34px, 5vw, 54px); line-height: .94; }
.product-price {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font: 800 clamp(32px, 4.2vw, 44px)/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}
.product-description { margin: 24px 0; font: 16px/1.6 Arial, sans-serif; }
.product-specs {
  margin: 0 0 25px;
  padding-block: 14px;
  border-block: 1px solid var(--rule);
  font-size: 9px;
}
.product-specs div {
  display: grid;
  grid-template-columns: 75px 1fr;
  gap: 10px;
  margin: 7px 0;
}
.product-specs dt { color: var(--brown); font-weight: 800; text-transform: uppercase; }
.product-specs dd { margin: 0; }
.buy-button, .primary-link {
  width: 100%;
  min-height: 48px;
  display: grid;
  place-items: center;
  border: 0;
  color: white;
  background: var(--ink);
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}
.buy-button:hover, .primary-link:hover { background: #0e293a; }
.buy-button:disabled { color: #747b7e; background: #d8d9d4; cursor: not-allowed; }
.app-store-button {
  width: 100%;
  min-height: 48px;
  margin-top: 10px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
  color: var(--ink);
  background: transparent;
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}
.app-store-button:hover { color: white; background: var(--ink); }
.button-note {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  text-align: center;
  font-size: 8px;
}
.included {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 30px;
  margin-top: 55px;
  padding-block: 26px;
  border-block: 1px solid var(--ink);
}
.included h2 { margin: 0; color: var(--ink); font: 800 20px Arial, sans-serif; }
.included ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 28px;
  margin: 0;
  padding: 0;
  list-style: none;
  font: 13px/1.5 Arial, sans-serif;
}
.included li:before { content: "+"; margin-right: 8px; color: var(--brown); font-weight: 800; }

.page-title { margin-bottom: 32px; font-size: clamp(36px, 5vw, 56px); line-height: 1; }
.cart-list { border-top: 1px solid var(--ink); }
.cart-item {
  display: grid;
  grid-template-columns: 92px 1fr auto auto;
  gap: 20px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.cart-item img { width: 92px; height: 92px; object-fit: cover; border: 1px solid var(--rule); }
.cart-item h2 { margin: 0 0 6px; color: var(--ink); font: 800 18px Arial, sans-serif; }
.cart-item p { margin: 0; color: var(--muted); font-size: 9px; }
.cart-item strong {
  color: var(--ink);
  font: 800 20px/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
}
.text-button {
  border: 0;
  padding: 0;
  color: var(--ink);
  background: transparent;
  font-size: 10px;
  font-weight: 800;
  text-decoration: underline;
  text-transform: uppercase;
  cursor: pointer;
}
.cart-total { width: min(360px, 100%); margin: 30px 0 0 auto; }
.cart-total > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
  font-size: 12px;
}
.cart-total strong {
  color: var(--ink);
  font: 800 28px/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
}
.continue-shopping { display: block; margin-top: 16px; text-align: center; font-size: 9px; }
.empty-cart { min-height: 240px; padding-top: 30px; border-top: 1px solid var(--ink); }
.empty-cart p, .simple-message p { font: 16px/1.6 Arial, sans-serif; }

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 60px;
  align-items: start;
}
.checkout-layout form h2, .order-summary h2 { margin: 0 0 20px; color: var(--ink); font: 800 20px Arial, sans-serif; }
.checkout-layout label {
  display: block;
  margin-bottom: 17px;
  color: var(--brown);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}
.checkout-layout input, .checkout-layout select {
  width: 100%;
  min-height: 46px;
  display: block;
  margin-top: 7px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 0;
  color: #1d2930;
  background: #fafaf6;
  font-size: 13px;
}
.payment-note {
  margin: 28px 0 20px;
  padding: 17px;
  border: 1px solid var(--rule);
  background: #e8e8e1;
}
.payment-note b { color: var(--ink); font-size: 10px; text-transform: uppercase; }
.payment-note p { margin: 7px 0 0; font: 12px/1.5 Arial, sans-serif; }
.checkout-error {
  margin: 0 0 16px;
  color: #8a2b2b;
  font: 13px/1.4 Arial, sans-serif;
}
.order-summary { padding: 22px; border: 1px solid var(--ink); background: #f8f8f3; }
.order-summary > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 13px;
}
.order-summary > div strong {
  font: 800 16px/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
}
.order-summary .summary-total {
  margin-top: 10px;
  padding-top: 17px;
  border-bottom: 0;
  font-size: 11px;
}
.order-summary .summary-total strong {
  font: 800 24px/1 Arial, sans-serif;
  font-variant-numeric: tabular-nums;
}
.simple-message {
  min-height: 55vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.simple-message .primary-link { width: min(320px, 100%); margin-top: 16px; }
.download-item {
  width: min(460px, 100%);
  margin: 8px 0 22px;
}
.download-item h2 {
  margin: 0 0 8px;
  color: var(--ink);
  font: 800 20px Arial, sans-serif;
}
.download-item p { margin: 0 0 12px; }

.about-page { padding-block: 54px 30px; }
.about-block {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 30px;
  margin-top: 8px;
  padding-block: 26px;
  border-block: 1px solid var(--ink);
}
.about-block + .about-block {
  margin-top: 0;
  border-top: 0;
}
.about-block h2 {
  margin: 0;
  color: var(--ink);
  font: 800 20px Arial, sans-serif;
}
.about-copy p {
  margin: 0 0 16px;
  max-width: 70ch;
  font: 16px/1.6 Arial, sans-serif;
}
.about-copy p:last-child { margin-bottom: 0; }
.about-block .product-specs {
  margin: 0;
  padding: 0;
  border: 0;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  margin-top: 35px;
  padding: 28px 0 48px;
  border-top: 3px solid var(--ink);
  font-size: 9px;
}
.site-footer p { margin: 0; }
.site-footer small { grid-column: 1 / -1; max-width: 760px; color: var(--muted); font-size: 8px; line-height: 1.5; }

@media (max-width: 760px) {
  .page-width { width: calc(100% - 28px); }
  .site-header { min-height: 72px; }
  .wordmark { font-size: 17px; }
  .site-header nav { gap: 12px; }
  .site-header nav a:nth-child(4) { display: none; }
  .home-page { padding-top: 37px; }
  .shop-intro { margin-bottom: 32px; }
  .shop-intro h1 { font-size: 43px; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 24px 14px; }
  .tile-copy h2 { font-size: 18px; }
  .tile-copy > p { min-height: 0; }
  .tile-meta { align-items: flex-start; flex-direction: column; gap: 8px; }
  .tile-meta b { font-size: 22px; }
  .product-layout { grid-template-columns: 1fr; gap: 28px; }
  .product-info h1 { font-size: 42px; }
  .included { grid-template-columns: 1fr; gap: 15px; }
  .included ul { grid-template-columns: 1fr; }
  .about-page { padding-top: 37px; }
  .about-block { grid-template-columns: 1fr; gap: 15px; }
  .cart-item { grid-template-columns: 70px 1fr auto; gap: 12px; }
  .cart-item img { width: 70px; height: 70px; }
  .cart-item .text-button { grid-column: 2; justify-self: start; }
  .checkout-layout { grid-template-columns: 1fr; gap: 34px; }
  .order-summary { grid-row: 1; }
  .site-footer { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .site-header { align-items: flex-start; padding-block: 20px; }
  .site-header nav { gap: 10px; }
  .wordmark { max-width: 240px; line-height: 1.05; }
  .product-grid { grid-template-columns: 1fr; gap: 30px; }
  .tile-meta { flex-direction: row; align-items: center; }
  .cart-item { grid-template-columns: 58px 1fr; }
  .cart-item img { width: 58px; height: 58px; }
  .cart-item strong, .cart-item .text-button { grid-column: 2; }
  .checkout-page, .cart-page { padding-top: 35px; }
}