/* ── Type Scale ── */
:root {
  --size-nav:         13px;   /* Shop / About / Contact / Cart */
  --size-filter:      10px;   /* Ceramics / Paintings etc */
  --size-product-title: 24px; /* Product name in detail panel */
  --size-product-price: 20px; /* Price in detail panel */
  --size-body:        13px;   /* Description, about/contact text */
  --size-card-label:  11px;   /* Name/price on product cards */
}

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

body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: #fff;
  color: #222;
  font-size: 13px;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100;
  padding: 32px 48px 0;
  text-align: center;
}

.site-title {
  display: block;
  margin-bottom: 20px;
}

.site-title img {
  height: 32px;
  width: auto;
}

nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  padding: 12px 16px;
  flex-wrap: nowrap;
}

nav a {
  font-size: var(--size-nav);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #999;
  transition: color 0.15s;
  white-space: nowrap;
}

nav a:hover,
nav a.active {
  color: #111;
}

/* ── Filters ── */
.filters {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 12px 0 16px;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  font-size: var(--size-filter);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  color: #999;
  padding: 0;
  transition: color 0.15s;
  font-family: inherit;
  white-space: nowrap;
}

.filter-btn:hover {
  color: #222;
}

.filter-btn.active {
  color: #111;
}

.filters--hidden {
  visibility: hidden;
}

/* ── Product Grid ── */
main {
  min-height: 80vh;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
  margin-top: 32px;
  padding-bottom: 80px;
}

@media (max-width: 960px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  header { padding: 24px 24px 0; }
  main { padding: 0 12px; }
  nav { gap: 16px; }
  .filters { gap: 12px; }
  .filter-btn { font-size: 10px; letter-spacing: 0.06em; }
}

/* On touch/mobile: hide overlay, show text below image instead */
@media (hover: none) {
  .product-overlay { display: none; }
  .product-card { cursor: pointer; }
  .product-card::after { display: none; }
}

/* ── Product Card ── */
.product-card {
  cursor: pointer;
  position: relative;
}

.product-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f4f4f4;
  margin-bottom: 14px;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.3s ease;
}

.product-card:hover .product-image img {
  opacity: 1;
}

.product-card.sold-out .product-image img {
  filter: none;
  opacity: 1;
}

/* Hover overlay */
.product-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
  padding: 16px;
  text-align: center;
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-name {
  font-size: var(--size-card-label);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: #fff;
}

.product-price {
  font-size: var(--size-card-label);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.06em;
}

/* Caption — mobile only, below image */
.product-caption {
  display: none;
  padding: 8px 2px 4px;
}

.product-caption .product-name {
  color: #222;
}

.product-caption .product-price {
  color: #888;
}

@media (hover: none) {
  .product-caption { display: block; }
}

/* ── Inline Product Detail Panel ── */
.product-detail-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  max-width: 900px;
  margin: 40px auto 48px;
}

.product-detail-panel h2 {
  font-size: var(--size-product-title);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
}

.detail-divider {
  display: none;
}

@media (max-width: 700px) {
  .product-detail-panel {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 0 36px;
  }
}

/* ── Product Detail Page ── */
.product-detail-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

.back-link {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #aaa;
  margin-bottom: 36px;
  transition: color 0.15s;
}

.back-link:hover { color: #222; }

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 700px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .product-detail-wrap { padding: 32px 20px 60px; }
}

.product-detail-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f4f4f4;
  overflow: hidden;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-detail-info h1 {
  font-size: var(--size-product-title);
  font-weight: 400;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.product-detail-price {
  font-size: var(--size-product-price);
  color: #888;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}

.product-detail-description {
  font-size: var(--size-body);
  line-height: 1.9;
  color: #555;
  white-space: pre-line;
  margin-bottom: 36px;
  border-top: 1px solid #e8e8e8;
  padding-top: 24px;
}

.btn-add-to-cart {
  display: block;
  width: 100%;
  background: #222;
  color: #fff;
  border: none;
  padding: 13px 24px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.btn-add-to-cart:hover {
  background: #444;
}

.btn-sold-out {
  display: block;
  width: 100%;
  background: none;
  color: #bbb;
  border: 1px solid #ddd;
  padding: 13px 24px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: inherit;
  text-align: center;
}

/* ── Cart Page ── */
.cart-page {
  max-width: 720px;
  margin: 56px auto;
  padding: 0 32px 80px;
}

.cart-page h1 {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 40px;
  color: #222;
}

.cart-empty {
  color: #aaa;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.cart-empty a {
  text-decoration: underline;
  color: #888;
}

.cart-item {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid #ebebeb;
}

.cart-item-image {
  width: 72px;
  height: 72px;
  object-fit: cover;
  background: #f4f4f4;
  display: block;
}

.cart-item-name {
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.cart-item-price {
  font-size: 12px;
  color: #888;
}

.cart-item-remove {
  background: none;
  border: none;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #bbb;
  cursor: pointer;
  display: block;
  margin-top: 6px;
  font-family: inherit;
  padding: 0;
  transition: color 0.15s;
}

.cart-item-remove:hover { color: #444; }

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

.cart-subtotal {
  display: flex;
  justify-content: space-between;
  padding: 24px 0 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.cart-shipping-note {
  font-size: 11px;
  color: #bbb;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.btn-checkout {
  display: block;
  width: 100%;
  background: #222;
  color: #fff;
  border: none;
  padding: 14px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.btn-checkout:hover { background: #444; }

/* ── Text Pages (About, Contact) ── */
.text-page {
  max-width: 720px;
  margin: 60px auto;
  padding: 0 32px 80px;
}

.text-section {
  margin-bottom: 40px;
}

.text-section h2 {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #aaa;
  margin-bottom: 12px;
}

.text-section p {
  font-size: 14px;
  line-height: 1.9;
  color: #444;
  margin-bottom: 10px;
}

.text-section a {
  color: #222;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.text-section a:hover {
  color: #888;
}

@media (max-width: 560px) {
  .text-page { margin: 36px auto; padding: 0 20px 60px; }
}

/* ── Footer ── */
footer {
  border-top: 1px solid #e8e8e8;
  padding: 24px 32px;
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #ccc;
  text-transform: uppercase;
  margin-top: 20px;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #222;
  color: #fff;
  padding: 11px 22px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.25s;
  pointer-events: none;
  z-index: 999;
}

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