:root {
  --color-porcelain: #fbfaf7;
  --color-ink: #242424;
  --color-muted: #6f6a63;
  --color-line: #ded8cf;
  --color-mist: #dfe8e3;
  --color-rose-stone: #b98676;
  --color-metal: #c2a968;
  --color-white: #ffffff;
  --font-display: "Noto Serif", "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", Tahoma, sans-serif;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-porcelain);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
}

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

input,
textarea,
select,
button {
  font: inherit;
}

.site-shell {
  overflow-x: hidden;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 250, 247, 0.82);
  border-bottom: 1px solid rgba(36, 36, 36, 0.1);
  box-shadow: 0 18px 45px rgba(36, 36, 36, 0.045);
  backdrop-filter: blur(22px) saturate(1.08);
}

.top-nav {
  border-bottom: 1px solid rgba(36, 36, 36, 0.07);
  background: rgba(255, 255, 255, 0.34);
  color: var(--color-muted);
  font-size: 11px;
}

.top-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 34px;
  gap: 24px;
}

.top-nav-links,
.top-nav-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 92px;
  gap: 22px;
}

.brand {
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 78px;
  height: 78px;
  padding: 5px;
  border: 1px solid rgba(36, 36, 36, 0.14);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.88), rgba(251, 250, 247, 0.64)), var(--color-porcelain);
  box-shadow: 0 12px 28px rgba(36, 36, 36, 0.08);
}

.brand img {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  object-fit: contain;
}

.main-nav,
.header-actions {
  display: flex;
  align-items: center;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav {
  gap: 32px;
}

.header-actions {
  justify-content: flex-end;
  gap: 22px;
}

.main-nav a,
.header-actions a,
.top-nav a {
  position: relative;
  transition: color 180ms ease;
}

.main-nav a:hover,
.header-actions a:hover,
.top-nav a:hover {
  color: var(--color-ink);
}

.main-nav a::after,
.header-actions a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 1px;
  background: var(--color-metal);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.header-actions a:hover::after {
  transform: scaleX(1);
}

.mobile-nav-link,
.mobile-tabbar {
  display: none;
}

.page-hero {
  padding: 88px 0 58px;
  border-bottom: 1px solid var(--color-line);
}

.page-kicker {
  margin: 0 0 14px;
  color: var(--color-rose-stone);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.page-title {
  max-width: 860px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 46px);
  font-weight: 500;
  line-height: 1.18;
}

.page-intro {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: 18px;
}

.section {
  padding: 78px 0;
}

.section-soft {
  background: var(--color-white);
}

.section-dark {
  background: var(--color-ink);
  color: var(--color-white);
}

.section-dark .section-copy,
.section-dark .card p,
.section-dark .list-link {
  color: rgba(255, 255, 255, 0.72);
}

.section-kicker {
  margin: 0 0 12px;
  color: var(--color-rose-stone);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 500;
  line-height: 1.16;
}

.section-copy {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--color-muted);
}

.grid {
  display: grid;
  gap: 22px;
  margin-top: 36px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.46);
  padding: 28px;
}

.card h2,
.card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.12;
}

.card p {
  margin: 0;
  color: var(--color-muted);
}

.visual-placeholder {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: radial-gradient(circle at 54% 40%, rgba(255, 255, 255, 0.92) 0 12%, transparent 13%), radial-gradient(circle at 44% 58%, rgba(194, 169, 104, 0.42) 0 9%, transparent 10%), linear-gradient(145deg, #f3f0ea, var(--color-mist));
}

.visual-placeholder::before,
.visual-placeholder::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(36, 36, 36, 0.16);
}

.visual-placeholder::before {
  width: 42%;
  aspect-ratio: 1;
  left: 29%;
  top: 28%;
  border-radius: 50%;
}

.visual-placeholder::after {
  width: 38%;
  height: 1px;
  left: 31%;
  top: 53%;
  background: rgba(36, 36, 36, 0.12);
}

.visual-placeholder span {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: rgba(36, 36, 36, 0.58);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.product-card {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 20px;
}

.product-media {
  margin: 0;
  overflow: hidden;
  border-radius: 6px;
  background: var(--color-mist);
}

.product-media img,
.product-card-image {
  display: block;
  width: 100%;
  object-fit: cover;
}

.product-media img {
  aspect-ratio: 1;
}

.product-hero-section {
  padding-top: 34px;
}

.product-info-scroll .page-title {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.14;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.product-gallery {
  position: sticky;
  top: 142px;
  display: grid;
  gap: 14px;
  align-self: start;
}

.product-thumbnails {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.product-thumb {
  display: block;
  min-width: 0;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
}

.product-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 4px;
}

.product-thumb.is-active {
  border-color: var(--color-ink);
}

.product-info-scroll {
  max-height: calc(100vh - 142px);
  overflow-y: auto;
  padding-right: 12px;
  scrollbar-width: thin;
}

.product-info-scroll::-webkit-scrollbar {
  width: 6px;
}

.product-info-scroll::-webkit-scrollbar-thumb {
  background: rgba(36, 36, 36, 0.22);
}

.product-quick-notes {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.product-card-image {
  aspect-ratio: 1 / 1.14;
  border-radius: 4px;
}

.shop-layout {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.shop-sidebar {
  position: sticky;
  top: 142px;
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}

.filter-group {
  padding: 0 0 22px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 22px;
}

.filter-group h2 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.filter-options {
  display: grid;
  gap: 10px;
}

.filter-options label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-size: 14px;
}

.filter-options input {
  accent-color: var(--color-ink);
}

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

.shop-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 0 26px;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--color-line);
}

.shop-count {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.shop-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sort-control {
  min-height: 42px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  padding: 0 12px;
  color: var(--color-ink);
  font-size: 13px;
}

.view-toggle {
  display: flex;
  border: 1px solid var(--color-line);
  background: var(--color-white);
}

.view-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 40px;
  border: 0;
  border-right: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
}

.view-button:last-child {
  border-right: 0;
}

.view-button.is-active {
  background: var(--color-ink);
  color: var(--color-white);
}

.shop-product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px 18px;
}

.shop-product-list {
  display: grid;
  gap: 14px;
}

.product-list-item {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 14px;
}

.product-list-link {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
}

.product-list-image {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 4px;
}

.product-list-content h3 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
}

.product-list-content p {
  margin: 0;
  color: var(--color-muted);
}

.product-card .visual-placeholder {
  aspect-ratio: 1 / 1.14;
}

.product-card h3 {
  margin: 14px 0 5px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
}

.product-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.product-price {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
}

.rating-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  color: var(--color-muted);
  font-size: 13px;
}

.rating-summary a {
  color: var(--color-ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.rating-stars {
  color: var(--color-metal);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.review-card {
  display: grid;
  gap: 10px;
}

.review-card h3 {
  margin-bottom: 0;
}

.review-meta {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.article-hero {
  padding: 70px 0 44px;
  border-bottom: 1px solid var(--color-line);
}

.article-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--color-muted);
  font-size: 12px;
  text-transform: uppercase;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  color: var(--color-muted);
  font-size: 13px;
}

.article-feature {
  padding: 34px 0 0;
}

.article-feature .product-media img {
  aspect-ratio: 16 / 7;
}

.article-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 760px);
  gap: 54px;
  align-items: start;
}

.article-sidebar {
  position: sticky;
  top: 142px;
}

.toc-card {
  display: grid;
  gap: 11px;
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}

.toc-card h2 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.toc-card a {
  color: var(--color-muted);
  font-size: 14px;
}

.article-body {
  min-width: 0;
}

.article-body > p,
.article-body li {
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.85;
}

.article-body h2 {
  margin: 48px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.08;
}

.article-body ul,
.article-body ol {
  display: grid;
  gap: 10px;
  padding-left: 24px;
}

.article-callout {
  margin: 34px 0;
  padding: 28px;
  border-left: 3px solid var(--color-metal);
  background: var(--color-white);
}

.article-callout h2 {
  margin-top: 0;
}

.article-mini-grid,
.article-faq {
  margin-top: 20px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid var(--color-ink);
  background: transparent;
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}

.button:hover {
  background: var(--color-ink);
  color: var(--color-white);
}

.button-secondary {
  border-color: var(--color-line);
  color: var(--color-muted);
}

.form-grid {
  display: grid;
  gap: 16px;
  max-width: 760px;
  margin-top: 30px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  padding: 0 14px;
  color: var(--color-ink);
}

.field textarea {
  min-height: 160px;
  padding-top: 14px;
}

.list-links {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.list-link {
  color: var(--color-muted);
}

.site-footer {
  padding: 72px 0 32px;
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) repeat(3, minmax(140px, 0.7fr));
  gap: 42px;
  font-size: 13px;
}

.footer-brand {
  max-width: 340px;
}

.footer-logo {
  display: block;
  margin-bottom: 16px;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 500;
}

.footer-copy,
.footer-note {
  margin: 0;
}

.footer-column h2 {
  margin: 0 0 16px;
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-signup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: 16px;
}

.footer-signup label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.footer-signup input {
  min-height: 42px;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  padding: 0 12px;
  color: var(--color-white);
}

.footer-signup input::placeholder {
  color: rgba(255, 255, 255, 0.48);
}

.footer-signup button {
  min-height: 42px;
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 12px;
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 1080px) {
  .main-nav {
    gap: 22px;
  }

  .header-actions {
    gap: 16px;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .top-nav,
  .main-nav {
    display: none;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shop-layout {
    grid-template-columns: 1fr;
  }

  .shop-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    border-top: 0;
    padding-top: 0;
  }

  .filter-group {
    margin-bottom: 0;
  }

  .shop-product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-list-link {
    grid-template-columns: 108px minmax(0, 1fr);
  }

  .product-list-link .product-price {
    grid-column: 2;
    margin-top: -8px;
  }

  .product-layout {
    grid-template-columns: 1fr;
  }

  .product-gallery {
    position: static;
  }

  .product-info-scroll {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .toc-card {
    border: 1px solid var(--color-line);
    padding: 18px;
    background: rgba(255, 255, 255, 0.56);
  }
}

@media (max-width: 620px) {
  body {
    padding-bottom: 78px;
    background: var(--color-white);
  }

  .container {
    width: min(100% - 28px, var(--container));
  }

  .site-header {
    background: rgba(251, 250, 247, 0.94);
    box-shadow: 0 10px 26px rgba(36, 36, 36, 0.08);
  }

  .header-inner {
    grid-template-columns: 1fr auto 1fr;
    min-height: 64px;
    gap: 12px;
  }

  .brand {
    grid-column: 2;
    width: 54px;
    height: 54px;
    padding: 4px;
  }

  .brand img {
    width: 46px;
    height: 46px;
  }

  .mobile-nav-link {
    display: inline-flex;
    grid-column: 1;
    color: var(--color-muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .header-actions {
    gap: 12px;
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  .header-actions a:first-child {
    display: none;
  }

  .page-hero {
    padding: 46px 0 36px;
  }

  .article-hero {
    padding: 44px 0 34px;
  }

  .article-feature .product-media img {
    aspect-ratio: 4 / 3;
  }

  .article-body > p,
  .article-body li {
    font-size: 16px;
  }

  .section {
    padding: 58px 0;
  }

  .grid,
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .shop-sidebar {
    grid-template-columns: 1fr;
  }

  .shop-action-bar {
    align-items: flex-start;
    display: grid;
  }

  .shop-controls {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto;
  }

  .sort-control {
    width: 100%;
  }

  .shop-product-grid {
    grid-template-columns: 1fr;
  }

  .product-list-link {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 14px;
  }

  .product-list-content h3 {
    font-size: 24px;
  }

  .button-row {
    display: grid;
    gap: 10px;
  }

  .button {
    width: 100%;
    min-height: 52px;
  }

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

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

  .footer-bottom {
    display: grid;
  }

  .mobile-tabbar {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 30;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    min-height: 62px;
    border: 1px solid rgba(36, 36, 36, 0.12);
    border-radius: 24px;
    background: rgba(251, 250, 247, 0.94);
    box-shadow: 0 18px 48px rgba(36, 36, 36, 0.18);
    backdrop-filter: blur(18px) saturate(1.08);
  }

  .mobile-tabbar a {
    display: grid;
    place-items: center;
    gap: 2px;
    padding: 9px 4px;
    color: var(--color-muted);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .mobile-tabbar a::before {
    content: attr(data-icon);
    color: var(--color-ink);
    font-size: 18px;
    line-height: 1;
  }
}

@media (max-width: 440px) {
  .header-actions,
  .mobile-nav-link {
    font-size: 11px;
  }
}