:root {
  --bg: #f2ece4;
  --paper: #fbf7f1;
  --card: #fffdf9;
  --surface-1: rgba(255, 253, 249, 0.96);
  --surface-2: rgba(255, 255, 255, 0.72);
  --surface-soft: rgba(255, 255, 255, 0.86);
  --ink: #211710;
  --muted: #6d5d50;
  --line: rgba(33, 23, 16, 0.11);
  --accent: #9b4d23;
  --accent-strong: #7d3512;
  --accent-soft: #e8bb8a;
  --shadow: 0 18px 40px rgba(54, 34, 19, 0.10);
  --shadow-soft: 0 12px 28px rgba(54, 34, 19, 0.08);
  --radius: 26px;
  --radius-card: 24px;
  --radius-control: 18px;
  --radius-pill: 999px;
  --space-section: clamp(22px, 2.2vw, 28px);
  --space-card: clamp(20px, 2vw, 26px);
  --space-card-tight: clamp(16px, 1.5vw, 20px);
  --control-height: 48px;
  --container-width: 1180px;
  --container-gutter: clamp(16px, 2.5vw, 32px);
  --text-base: clamp(15px, 1.1vw, 17px);
  --text-small: clamp(13px, 0.95vw, 14px);
  --text-title: clamp(24px, 2.2vw, 34px);
}

body[data-theme="dark"] {
  --bg: #17130f;
  --paper: #1f1914;
  --card: #251f19;
  --surface-1: rgba(37, 31, 25, 0.96);
  --surface-2: rgba(53, 43, 35, 0.88);
  --surface-soft: rgba(45, 37, 30, 0.94);
  --ink: #f3eadf;
  --muted: #c7b5a5;
  --line: rgba(255, 238, 220, 0.18);
  --accent: #d7834f;
  --accent-strong: #b55d2b;
  --accent-soft: rgba(215, 131, 79, 0.18);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
  --shadow-soft: 0 14px 32px rgba(0, 0, 0, 0.22);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(155, 77, 35, 0.16), transparent 26%),
    linear-gradient(180deg, #f5efe8 0%, #f2ece4 100%);
}

body[data-theme="dark"] {
  background:
    radial-gradient(circle at top left, rgba(215, 131, 79, 0.14), transparent 26%),
    linear-gradient(180deg, #14100d 0%, #17130f 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.site-header,
.site-footer,
.store-shell {
  width: min(var(--container-width), calc(100% - (var(--container-gutter) * 2)));
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 20px 0 14px;
  position: relative;
  z-index: 20;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #fff7ef;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-logo-frame {
  width: 76px;
  height: 34px;
  padding: 3px 5px;
  border-radius: 10px;
  overflow: hidden;
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, rgba(91, 36, 16, 0.96), rgba(125, 53, 18, 0.96));
  border: 1px solid rgba(255, 248, 241, 0.12);
  box-shadow: 0 10px 24px rgba(58, 28, 14, 0.18);
}

.brand-logo {
  display: block;
  width: 92%;
  height: 92%;
  object-fit: contain;
  object-position: center;
}

.brand-copy strong,
.brand-copy small {
  display: block;
}

.brand-copy strong {
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.05;
}

.brand-copy small {
  color: var(--muted);
  font-size: var(--text-small);
}

.menu-toggle {
  display: none;
  appearance: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-control);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.84);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.theme-toggle {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.82);
  color: var(--ink);
  min-height: var(--control-height);
  border-radius: var(--radius-pill);
  padding: 10px 14px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  white-space: nowrap;
}

.theme-toggle-icon {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 2px solid currentColor;
  display: inline-block;
  position: relative;
}

.theme-toggle-icon::after {
  content: "";
  position: absolute;
  inset: 2px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.22;
}

.theme-toggle.is-dark .theme-toggle-icon::after {
  inset: 0 0 0 6px;
  opacity: 1;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.backtop-button {
  display: none;
  appearance: none;
  align-items: center;
  justify-content: center;
  width: var(--control-height);
  height: var(--control-height);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: rgba(255,255,255,0.84);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.backtop-button span {
  width: 14px;
  height: 14px;
  display: block;
  border-top: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
  transform: rotate(45deg) translate(2px, 2px);
}

.menu-toggle:hover {
  background: rgba(255,255,255,0.96);
  border-color: rgba(33, 23, 16, 0.18);
}

body[data-theme="dark"] .theme-toggle,
body[data-theme="dark"] .menu-toggle,
body[data-theme="dark"] .backtop-button {
  background: rgba(37, 31, 25, 0.94);
  border-color: rgba(255, 238, 220, 0.14);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.lang-switcher button {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.78);
  color: var(--muted);
  min-height: 36px;
  border-radius: var(--radius-pill);
  padding: 8px 10px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.lang-switcher button.is-active {
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #fff8f1;
  border-color: transparent;
}

.site-header.is-menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header.is-menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height);
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(33, 23, 16, 0.08);
  background: var(--surface-2);
  color: var(--muted);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  text-align: center;
  box-shadow: 0 8px 18px rgba(54, 34, 19, 0.04);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.site-nav a {
  white-space: nowrap;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: #fff8f1;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  transform: translateY(-1px);
}

body[data-theme="dark"] .site-nav a,
body[data-theme="dark"] .product-meta span,
body[data-theme="dark"] .detail-meta span,
body[data-theme="dark"] .category-card,
body[data-theme="dark"] .toolbar-input,
body[data-theme="dark"] .toolbar-select,
body[data-theme="dark"] .field input,
body[data-theme="dark"] .field textarea,
body[data-theme="dark"] .field select,
body[data-theme="dark"] .button,
body[data-theme="dark"] button.button {
  background: rgba(53, 43, 35, 0.88);
  border-color: rgba(255, 238, 220, 0.12);
  color: var(--ink);
}

body[data-theme="dark"] .site-nav a[aria-current="page"],
body[data-theme="dark"] .site-nav a:hover {
  color: #fff8f1;
  background: linear-gradient(180deg, #b85629, #8e3a1a);
  border-color: rgba(255, 238, 220, 0.08);
}

body[data-theme="dark"] .product-price-row span {
  color: #d9c8ba;
}

.store-shell {
  flex: 1 0 auto;
  padding-bottom: 56px;
}

.site-footer {
  margin-top: auto;
}

.home-hero,
.page-hero,
.content-section,
.info-card,
.request-card,
.toolbar-card,
.filter-toolbar,
.detail-card,
.empty-panel,
.empty-state {
  border-radius: var(--radius-card);
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: clamp(20px, 2.2vw, 28px);
  padding: clamp(24px, 4vw, 42px);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-hero {
  margin-top: 14px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-copy {
  display: grid;
  gap: 8px;
  max-width: 760px;
}

.page-copy > * {
  margin-bottom: 0;
}

.hero-kicker,
.section-kicker,
.panel-label {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 800;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 12px;
  font-size: clamp(30px, 3.2vw, 48px);
  line-height: 1.04;
}
h2 {
  margin-bottom: 10px;
  font-size: clamp(22px, 2.1vw, 32px);
  line-height: 1.15;
}
h3 {
  font-size: var(--text-title);
  line-height: 1.2;
}

p,
li,
input,
textarea,
select,
button {
  font-size: inherit;
}

.hero-note,
.muted,
.panel-list,
.panel-list li,
.product-note,
.detail-meta,
.contact-phone {
  color: var(--muted);
}

.hero-note,
.muted,
.product-note,
.faq-answer p,
.contact-phone {
  font-size: clamp(15px, 1.05vw, 17px);
}

.hero-actions,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.action-row.center,
.action-row.submit,
.action-row.dialog,
.checkout-submit-row,
.form-actions,
.account-actions {
  justify-content: center;
}

.action-row.submit .button,
.action-row.submit button.button,
.action-row.dialog .button,
.action-row.dialog button.button,
.form-actions .button,
.form-actions button.button,
.account-actions .button,
.account-actions button.button {
  min-width: min(240px, 100%);
}

.checkout-submit-row .button,
.checkout-submit-row button.button {
  min-width: min(280px, 100%);
}

.action-row.stack,
.cart-summary-actions {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.action-row.stack .button,
.action-row.stack button.button,
.cart-summary-actions .button,
.cart-summary-actions button.button {
  width: 100%;
}

.info-card .hero-actions,
.request-card .hero-actions,
.tradein-centered .hero-actions {
  justify-content: center;
}

.request-card #order-message,
.request-card #tradein-message {
  text-align: center;
}

#order-turnstile,
#tradein-turnstile,
#contact-turnstile {
  display: flex;
  justify-content: center;
  margin-top: 4px;
}

#order-turnstile > div,
#tradein-turnstile > div,
#contact-turnstile > div,
#order-turnstile iframe,
#tradein-turnstile iframe,
#contact-turnstile iframe {
  max-width: 100%;
  transform-origin: top center;
}

.button,
button.button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--ink);
  min-height: var(--control-height);
  border-radius: var(--radius-pill);
  padding: 13px 20px;
  font: inherit;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(54, 34, 19, 0.06);
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.hero-actions > .button,
.hero-actions > button.button,
.action-row > .button,
.action-row > button.button,
.cta-row > .button,
.cta-row > button.button {
  justify-content: center;
  text-align: center;
}

.button:hover,
button.button:hover {
  transform: translateY(-1px);
  border-color: rgba(155, 77, 35, 0.24);
  box-shadow: 0 14px 24px rgba(54, 34, 19, 0.10);
}

.button.primary,
button.button.primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  color: #fff8f1;
}

.button.is-active,
button.button.is-active {
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  color: #fff8f1;
}

.button.is-loading,
button.button.is-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.86;
}

.button.is-loading::before,
button.button.is-loading::before {
  content: "";
  width: 14px;
  height: 14px;
  margin-right: 10px;
  border-radius: 999px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  display: inline-block;
  vertical-align: -2px;
  animation: iva-spin 0.75s linear infinite;
}

.text-link {
  color: var(--accent-strong);
  font-weight: 700;
}

.hero-panel,
.info-card,
.request-card,
.toolbar-card,
.filter-toolbar,
.detail-card,
.empty-panel,
.empty-state {
  background: var(--surface-1);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: var(--space-card);
}

.card-stack {
  display: grid;
  gap: 20px;
}

.panel-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.content-section {
  margin-top: var(--space-section);
}

.content-section > .section-head {
  align-items: center;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: clamp(14px, 1.5vw, 18px);
}

.section-head > div:first-child {
  min-width: 0;
}

.section-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.section-copy > * {
  margin-bottom: 0;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 1.6vw, 18px);
}

.category-card {
  display: block;
  padding: var(--space-card-tight);
  border-radius: 22px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.category-card:hover {
  transform: translateY(-2px);
  border-color: rgba(155, 77, 35, 0.22);
  box-shadow: var(--shadow);
}

.category-card strong,
.category-card span {
  display: block;
}

.category-card span {
  margin-top: 6px;
  color: var(--muted);
  font-size: var(--text-small);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 1.8vw, 22px);
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--surface-1);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: rgba(155, 77, 35, 0.2);
  box-shadow: 0 22px 44px rgba(54, 34, 19, 0.14);
}

.product-card-link {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
}

.product-card-wide .product-image {
  aspect-ratio: 1.18 / 1;
}

.product-image {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #efe7dc;
}

.product-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  padding: var(--space-card-tight);
}

.product-category {
  margin-bottom: 6px;
  color: var(--accent-strong);
  font-weight: 700;
}

.product-body h3 {
  margin-bottom: 8px;
  font-size: clamp(21px, 1.8vw, 26px);
  min-height: calc(1.2em * 2);
}

.product-note {
  min-height: 42px;
  margin-bottom: 0;
}

.product-price-row {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-top: 12px;
}

.product-price-row strong {
  color: var(--accent-strong);
  font-size: 28px;
}

.product-price-row span {
  color: var(--muted);
  text-decoration: line-through;
  font-size: var(--text-small);
}

.product-meta,
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.product-meta {
  margin-top: auto;
  padding-top: 12px;
}

.product-meta span,
.detail-meta span {
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.grid-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 1.8vw, 22px);
}

.tradein-centered {
  display: flex;
  justify-content: center;
}

.tradein-centered .request-card {
  width: min(760px, 100%);
}

.tradein-centered .section-head {
  justify-content: center;
}

.tradein-centered .section-head > div {
  text-align: center;
}

.info-card,
.request-card,
.detail-card {
  padding: var(--space-card);
}

.detail-cta-center {
  justify-content: center;
}

.site-modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 24px;
}

.site-modal[hidden] {
  display: none;
}

.site-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(23, 16, 11, 0.42);
  backdrop-filter: blur(4px);
}

.site-modal-dialog {
  position: relative;
  width: min(720px, 100%);
  max-height: min(84vh, 760px);
  overflow: auto;
  padding: var(--space-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--line);
  background: rgba(255, 249, 241, 0.98);
  box-shadow: 0 24px 64px rgba(35, 26, 18, 0.24);
}

.vietqr-link {
  display: block;
}

.payment-note-inline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.payment-note-inline input {
  min-width: 0;
}

.inline-copy-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  min-height: var(--control-height);
  border-radius: var(--radius-control);
  padding: 12px 16px;
  font: inherit;
  cursor: pointer;
}

.inline-copy-button:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.compact-account-callout {
  margin-bottom: 22px;
}

.compact-account-callout .section-head {
  margin-bottom: 10px;
}

body[data-theme="dark"] .site-modal-dialog {
  background: rgba(28, 22, 18, 0.98);
  border-color: rgba(255, 238, 220, 0.12);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.38);
}

.toolbar-card,
.filter-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: flex-start;
  padding: var(--space-card-tight);
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.toolbar-input,
.toolbar-select,
.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: var(--control-height);
  padding: 14px 16px;
  border-radius: var(--radius-control);
  border: 1px solid var(--line);
  background: var(--surface-soft);
  font: inherit;
  color: var(--ink);
}

.toolbar-input {
  flex: 1 1 280px;
}

.toolbar-select {
  width: auto;
  min-width: 220px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(0, 1.05fr);
  gap: 24px;
}

.detail-media {
  display: grid;
  gap: 12px;
}

.detail-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 22px;
  border: 1px solid rgba(33, 23, 16, 0.06);
}

.detail-image-empty {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(154, 52, 18, 0.06), rgba(245, 158, 11, 0.08));
  color: var(--muted);
  text-align: center;
  padding: 24px;
  font-weight: 600;
}

.product-image-empty {
  border-radius: 22px 22px 0 0;
}

body[data-theme="dark"] .detail-image-empty {
  background: linear-gradient(180deg, rgba(184, 86, 41, 0.12), rgba(240, 181, 90, 0.08));
  border-color: rgba(255, 238, 220, 0.12);
  color: #ccb6a2;
}

.detail-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
  gap: 10px;
}

.detail-thumb {
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  overflow: hidden;
  background: var(--surface-soft);
  cursor: pointer;
}

.detail-thumb.is-active {
  border-color: rgba(154, 52, 18, 0.4);
  box-shadow: 0 0 0 2px rgba(154, 52, 18, 0.08);
}

.detail-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.form-stack {
  display: grid;
  gap: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field.compact span {
  margin-bottom: 6px;
  font-size: 13px;
}

.field span {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 15px;
}

.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.empty-panel,
.empty-state {
  padding: var(--space-card);
  text-align: center;
}

.empty-panel .hero-actions,
.empty-panel .action-row,
.empty-state .hero-actions,
.empty-state .action-row {
  justify-content: center;
}

.panel-list {
  text-align: left;
}

.faq-list {
  display: grid;
  gap: 18px;
}

.faq-item {
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--surface-1);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 0;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  padding: 18px 20px;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 700;
  font-size: clamp(16px, 1.15vw, 18px);
  text-align: left;
  color: var(--ink);
  cursor: pointer;
}

.faq-icon {
  flex: 0 0 auto;
  color: var(--accent-strong);
  font-size: 24px;
  line-height: 1;
}

.faq-answer {
  padding: 0 20px 20px;
}

.faq-answer p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.skeleton-grid {
  display: grid;
  gap: 16px;
}

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

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

.skeleton-card,
.skeleton-line,
.skeleton-media {
  display: block;
  border-radius: 20px;
  background: linear-gradient(90deg, rgba(223, 213, 201, 0.9) 25%, rgba(246, 240, 232, 1) 50%, rgba(223, 213, 201, 0.9) 75%);
  background-size: 220% 100%;
  animation: iva-skeleton 1.15s ease-in-out infinite;
}

.skeleton-card {
  min-height: 110px;
}

.skeleton-card-product {
  min-height: 320px;
}

.skeleton-detail {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(0, 1.05fr);
  gap: 24px;
}

.skeleton-media {
  min-height: 320px;
}

.skeleton-stack {
  display: grid;
  gap: 14px;
}

.skeleton-line {
  height: 18px;
  border-radius: 999px;
}

.skeleton-line.wide {
  height: 26px;
  width: 78%;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: var(--text-small);
}

.site-footer nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.site-footer > p a {
  color: inherit;
  text-decoration: none;
  font-weight: inherit;
}

.cart-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 24px;
}

.cart-summary-card {
  position: sticky;
  top: 24px;
  align-self: start;
}

.cart-list {
  display: grid;
  gap: 18px;
}

.cart-item {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  padding: var(--space-card-tight);
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--surface-2);
}

.cart-item.compact {
  grid-template-columns: 72px minmax(0, 1fr) auto;
  padding: 12px;
  border-radius: 18px;
}

.cart-item-image {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-control);
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.cart-item-copy h3 {
  margin-bottom: 6px;
  font-size: clamp(18px, 1.55vw, 24px);
  line-height: 1.3;
}

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

.cart-item-copy .muted {
  overflow-wrap: anywhere;
}

.cart-item-actions {
  display: grid;
  gap: 10px;
  min-width: 140px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.summary-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.summary-row strong {
  max-width: 58%;
  text-align: right;
}

.button.is-disabled,
.button[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.checkout-auth-card {
  margin-bottom: 18px;
}

.checkout-auth-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  align-items: stretch;
}

.segmented-control {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segmented-control .button {
  background: rgba(15, 23, 42, 0.05);
  color: var(--ink);
}

.segmented-control .button.active {
  background: var(--ink);
  color: #fff;
  border-color: transparent;
}

.contact-form-card {
  max-width: 860px;
  margin: 0 auto;
}

.vietqr-image {
  display: block;
  width: min(100%, 320px);
  margin: 0 auto;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  padding: 10px;
}

.order-status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
}

.stack-mini {
  display: grid;
  gap: 16px;
}

.summary-list {
  display: grid;
  gap: 0;
}

.detail-card > .info-card,
.detail-card > .detail-card,
.detail-card > .request-card,
.info-card > .info-card,
.info-card > .detail-card,
.request-card > .info-card,
.request-card > .detail-card {
  margin-top: 4px;
}

body[data-theme="dark"] .cart-item,
body[data-theme="dark"] .cart-item-image,
body[data-theme="dark"] .vietqr-image {
  background: rgba(53, 43, 35, 0.88);
  border-color: rgba(255, 238, 220, 0.12);
}

body[data-theme="dark"] .button.is-active,
body[data-theme="dark"] button.button.is-active {
  background: linear-gradient(180deg, #b85629, #8e3a1a);
  border-color: rgba(255, 238, 220, 0.08);
}

@keyframes iva-spin {
  to { transform: rotate(360deg); }
}

@keyframes iva-skeleton {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (max-width: 980px) {
  .home-hero,
  .cart-layout,
  .grid-split,
  .detail-grid,
  .skeleton-detail {
    grid-template-columns: 1fr;
  }

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

  .product-grid,
  .skeleton-grid-3,
  .order-status-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cart-summary-card {
    position: static;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .store-shell,
  .site-header,
  .site-footer {
    width: min(100% - 20px, 100%);
  }

  .store-shell {
    padding-bottom: 44px;
  }

  .home-hero,
  .page-hero,
  .info-card,
  .request-card,
  .detail-card {
    padding: 18px;
  }

  .site-header {
    gap: 10px;
    padding-top: 12px;
    align-items: center;
    flex-wrap: wrap;
    padding-right: 64px;
  }

  .brand {
    flex: 1 1 auto;
    width: auto;
  }

  .brand-logo-frame {
    width: 64px;
    height: 30px;
    padding: 3px 4px;
  }

  .brand-logo {
    width: 90%;
    height: 90%;
  }

  .brand-copy strong {
    font-size: 17px;
  }

  .brand-copy small {
    font-size: 12px;
  }

  .menu-toggle {
    display: inline-flex;
    position: fixed;
    top: 12px;
    right: 10px;
    z-index: 60;
    background: rgba(255, 252, 247, 0.96);
    backdrop-filter: blur(12px);
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition: opacity 0.2s ease, transform 0.2s ease, background 0.18s ease, border-color 0.18s ease;
  }

  .theme-toggle {
    background: rgba(255, 252, 247, 0.96);
    backdrop-filter: blur(12px);
    width: 100%;
    justify-content: center;
    border-radius: 14px;
    padding: 12px 14px;
    box-shadow: none;
  }

  .theme-toggle-text {
    display: inline;
  }

  .lang-switcher {
    width: 100%;
    justify-content: flex-start;
  }

  .backtop-button {
    display: inline-flex;
    position: fixed;
    right: 10px;
    bottom: 16px;
    z-index: 59;
    background: rgba(255, 252, 247, 0.96);
    backdrop-filter: blur(12px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  body.is-mobile-float-visible .backtop-button {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav {
    display: none;
    position: fixed;
    top: 66px;
    right: 10px;
    left: 10px;
    z-index: 55;
    width: auto;
    max-height: calc(100vh - 88px);
    overflow: auto;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 10px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(255,249,241,0.98);
    backdrop-filter: blur(18px);
    box-shadow: 0 24px 48px rgba(54, 34, 19, 0.16);
  }

  body[data-theme="dark"] .site-nav {
    background: rgba(31, 25, 20, 0.98);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.34);
  }

  body[data-theme="dark"] .site-nav a {
    background: rgba(53, 43, 35, 0.9);
  }

  .site-header.is-menu-open .site-nav {
    display: grid;
  }

  .site-nav a {
    text-align: left;
    min-height: 44px;
    padding: 12px 14px;
    background: var(--surface-soft);
  }

  .site-nav .theme-toggle {
    margin-top: 4px;
  }

  h1 {
    font-size: clamp(22px, 7.4vw, 30px);
    margin-bottom: 10px;
  }

  h2 {
    font-size: clamp(18px, 5vw, 24px);
    margin-bottom: 8px;
  }

  body {
    font-size: 14px;
    line-height: 1.55;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
  }

  body[data-page="home"] .content-section > .section-head,
  body[data-page="catalog"] .page-hero,
  body[data-page="catalog"] .request-card .section-head,
  body[data-page="trade-in"] .page-hero,
  body[data-page="trade-in"] .section-head,
  body[data-page="faq"] .page-hero,
  body[data-page="faq"] .content-section > .section-head,
  body[data-page="contact"] .page-hero,
  body[data-page="contact"] .content-section > .section-head {
    align-items: center;
    text-align: center;
  }

  body[data-page="home"] .content-section > .section-head > div,
  body[data-page="catalog"] .page-copy,
  body[data-page="catalog"] .request-card .section-head > div,
  body[data-page="trade-in"] .page-copy,
  body[data-page="trade-in"] .section-head > div,
  body[data-page="faq"] .page-copy,
  body[data-page="faq"] .content-section > .section-head > div,
  body[data-page="contact"] .page-copy,
  body[data-page="contact"] .content-section > .section-head > div {
    text-align: center;
  }

  .hero-copy {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
  }

  .info-card,
  .contact-card {
    text-align: center;
  }

  .info-card .button,
  .contact-card .button {
    margin-inline: auto;
  }

  .product-body h3 {
    font-size: 18px;
  }

  .product-price-row strong {
    font-size: 22px;
  }

  .hero-note,
  .muted,
  .product-note,
  .faq-answer p,
  .contact-phone {
    font-size: 14px;
  }

  .faq-list {
    gap: 16px;
  }

  .hero-actions .button,
  .hero-actions button.button,
  .action-row .button,
  .action-row button.button {
    width: 100%;
    margin-inline: 0;
  }

  .payment-note-inline {
    grid-template-columns: 1fr;
  }

  .summary-row {
    flex-direction: column;
    gap: 6px;
  }

  .summary-row strong {
    max-width: 100%;
    text-align: left;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .toolbar-select {
    width: 100%;
    min-width: 0;
  }

  .toolbar-card,
  .filter-toolbar {
    align-items: stretch;
    gap: 10px;
    padding: 14px;
    margin-bottom: 14px;
  }

  .checkout-auth-options .button,
  .checkout-auth-options button.button {
    width: 100%;
  }

  .skeleton-grid-4,
  .skeleton-grid-3,
  .category-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .toolbar-input,
  .toolbar-select {
    flex: 1 1 auto;
    width: 100%;
  }

  .detail-meta span,
  .product-meta span {
    width: 100%;
  }

  .content-section {
    margin-top: 18px;
  }

  .product-body {
    padding: 16px;
  }

  .product-note {
    min-height: 0;
  }

  .field span {
    margin-bottom: 6px;
    font-size: 14px;
  }

  .field input,
  .field textarea,
  .field select,
  .toolbar-input,
  .toolbar-select {
    padding: 12px 14px;
    border-radius: 16px;
  }

  .button,
  button.button {
    min-height: 44px;
    padding: 12px 16px;
  }

  .site-footer {
    padding-top: 8px;
    align-items: center;
    text-align: center;
  }

  .site-footer nav {
    gap: 10px;
    justify-content: center;
  }

  .cart-item,
  .cart-item.compact {
    grid-template-columns: 1fr;
  }

  .cart-item-image {
    max-width: 124px;
  }

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

  .checkout-auth-options {
    justify-content: center;
  }

  .order-status-grid {
    grid-template-columns: 1fr;
  }

  #order-turnstile > div,
  #tradein-turnstile > div,
  #contact-turnstile > div,
  #order-turnstile iframe,
  #tradein-turnstile iframe,
  #contact-turnstile iframe {
    transform: scale(0.94);
  }
}