/* ========================================================
   EMi Balance — Commerce Styles (Giỏ hàng, Thanh toán, Cảm ơn)
   Tuân thủ bảng màu EMi, font Newsreader + Be Vietnam Pro
   Tối ưu Mobile First (360/390/430px) & Desktop 1440px
   Không inline style/script, touch target ≥ 44px, text ≥ 13px
   ======================================================== */

:root {
  --emi-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --emi-navy: #1f3557;
  --emi-navy-dark: #14243b;
  --emi-navy-light: #2c4a75;
  --emi-navy-soft: #33456a;
  --emi-sky: #9cc3e4;
  --emi-sky-soft: #cfe2ef;
  --emi-sky-dark: #4a75a5;
  --emi-sakura: #f2c6cf;
  --emi-sakura-soft: #fae8ec;
  --emi-sakura-dark: #d8899b;
  --emi-cream: #f7f1e6;
  --emi-cream-light: #fdfbf7;
  --emi-cream-soft: #f1ebd8;
  --emi-white: #ffffff;
  --emi-border: rgba(31, 53, 87, 0.12);
  --emi-border-subtle: rgba(31, 53, 87, 0.08);
  --emi-border-strong: rgba(31, 53, 87, 0.28);
  --emi-shadow: 0 8px 24px rgba(31, 53, 87, 0.08);
  --emi-shadow-hover: 0 16px 36px rgba(31, 53, 87, 0.14);
  --emi-green: #2a7e43;
  --emi-green-soft: #eaf5ed;
  --emi-green-dark: #1b5e30;
  --emi-amber: #946914;
  --emi-amber-soft: #fef7e7;
  --emi-danger: #c0392b;
  --emi-danger-soft: #fbeae8;
  --emi-focus: var(--emi-sky-dark);
}

/* ========================================================
   1. Header Cart Icon & Badge
   ======================================================== */
.hd-nav-cart {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--emi-border-strong);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--emi-navy);
  text-decoration: none;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.hd-nav-cart[hidden] { display: none; }

.hd-nav-cart:hover {
  background: var(--emi-navy);
  color: var(--emi-cream);
  border-color: transparent;
  transform: translateY(-1px);
}

.hd-cart-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.hd-cart-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  min-width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--emi-navy);
  color: var(--emi-cream);
  font: 700 11px/20px 'Be Vietnam Pro', sans-serif;
  text-align: center;
  padding: 0 5px;
  box-shadow: 0 2px 6px rgba(31, 53, 87, 0.25);
  pointer-events: none;
  transition: all 0.2s ease;
}

.site-header.is-scrolled .hd-nav-cart {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(156, 195, 228, 0.35);
  color: var(--emi-cream);
}

.site-header.is-scrolled .hd-nav-cart:hover {
  background: var(--emi-cream);
  color: var(--emi-navy);
}

.site-header.is-scrolled .hd-cart-badge {
  background: var(--emi-sky);
  color: var(--emi-navy);
}

/* ========================================================
   2. Product Detail Add to Cart Actions (san-pham.html)
   ======================================================== */
.scene-commerce-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.scene-qty-control {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid var(--emi-border-strong);
  border-radius: 999px;
  padding: 2px 4px;
  min-height: 48px;
  box-shadow: inset 0 1px 2px rgba(31, 53, 87, 0.04);
}

.scene-qty-btn {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--emi-navy);
  font: 600 18px/1 'Be Vietnam Pro', sans-serif;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.scene-qty-btn:hover {
  background: var(--emi-cream-soft);
  color: var(--emi-navy-dark);
}

.scene-qty-input {
  width: 44px;
  height: 44px;
  min-height: 44px;
  border: none;
  background: transparent;
  color: var(--emi-navy);
  font: 600 15px/44px 'Be Vietnam Pro', sans-serif;
  text-align: center;
  appearance: textfield;
  -moz-appearance: textfield;
  padding: 0;
}

.scene-qty-input::-webkit-outer-spin-button,
.scene-qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.scene-add-cart-btn {
  cursor: pointer;
  padding: 13px 26px;
  min-height: 48px;
  border-radius: 999px;
  border: none;
  background: var(--emi-navy);
  color: var(--emi-cream);
  font: 600 14px/1 'Be Vietnam Pro', sans-serif;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(31, 53, 87, 0.2);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.scene-add-cart-btn:hover {
  background: var(--emi-navy-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(31, 53, 87, 0.28);
}

/* Ẩn / Hiện theo cờ data-commerce="on|off" */
[data-commerce="off"] [data-action="add-to-cart"],
[data-commerce="off"] .scene-commerce-actions,
body[data-commerce="off"] [data-action="add-to-cart"],
body[data-commerce="off"] .scene-commerce-actions {
  display: none !important;
}

[data-commerce="on"] .scene-emenvi-btn,
body[data-commerce="on"] .scene-emenvi-btn {
  display: none !important;
}

/* ========================================================
   3. General Commerce Page Layout
   ======================================================== */
.commerce-page {
  padding-top: 108px;
  min-height: calc(100vh - 200px);
  background: var(--emi-cream);
}

.commerce-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.commerce-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--emi-navy-soft);
  margin-bottom: 24px;
}

.commerce-breadcrumbs a {
  display: inline-flex;
  align-items: center;
  box-sizing: border-box;
  min-height: 44px;
  padding-block: 8px;
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

.commerce-breadcrumbs a:hover {
  color: var(--emi-navy-dark);
  text-decoration: underline;
}

.commerce-breadcrumbs span[aria-current="page"] {
  color: var(--emi-navy);
  font-weight: 600;
}

.commerce-header {
  margin-bottom: 36px;
}

.commerce-eyebrow {
  display: inline-block;
  font: 600 12px/1.4 'Be Vietnam Pro', sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--emi-sky-dark);
  margin-bottom: 10px;
}

.commerce-title {
  font: normal 34px/1.2 var(--emi-serif);
  color: var(--emi-navy);
  margin: 0 0 10px;
}

.commerce-title em {
  font-style: italic;
  color: var(--emi-sky-dark);
}

.commerce-desc {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--emi-navy-soft);
  margin: 0;
  max-width: 680px;
}

/* 2-column layout */
.commerce-grid {
  display: grid;
  grid-template-columns: 1.65fr 1fr;
  gap: 36px;
  align-items: start;
}

/* ========================================================
   4. Buttons & Form UI Elements
   ======================================================== */
.commerce-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: 999px;
  font: 600 14px/1 'Be Vietnam Pro', sans-serif;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.commerce-btn-primary {
  background: var(--emi-navy);
  color: var(--emi-cream);
  box-shadow: 0 4px 14px rgba(31, 53, 87, 0.18);
}

.commerce-btn-primary:hover {
  background: var(--emi-navy-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(31, 53, 87, 0.25);
}

.commerce-btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  color: var(--emi-navy);
  border-color: var(--emi-border-strong);
}

.commerce-btn-secondary:hover {
  background: var(--emi-cream-soft);
  border-color: var(--emi-navy);
}

.commerce-btn-block {
  width: 100%;
}

.commerce-btn-lg {
  min-height: 52px;
  font-size: 15px;
  padding: 14px 28px;
}

.commerce-btn:disabled,
.commerce-btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* Form inputs */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--emi-navy);
  margin-bottom: 8px;
}

.form-label .req {
  color: var(--emi-danger);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--emi-border-strong);
  background: #ffffff;
  color: var(--emi-navy);
  font: 14px/1.5 'Be Vietnam Pro', sans-serif;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #7b8ea6;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--emi-navy);
  box-shadow: 0 0 0 3px rgba(74, 117, 165, 0.25);
}

.form-textarea {
  min-height: 96px;
  resize: vertical;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-error {
  display: block;
  font-size: 13px;
  color: var(--emi-danger);
  margin-top: 6px;
  line-height: 1.4;
}

/* Honeypot hidden field */
.commerce-honey {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  opacity: 0;
  pointer-events: none;
}

/* Alerts */
.commerce-alert {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.5;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.commerce-alert-danger {
  background: var(--emi-danger-soft);
  border: 1px solid rgba(192, 57, 43, 0.3);
  color: #8b1e13;
}

.commerce-alert-warning {
  background: var(--emi-amber-soft);
  border: 1px solid rgba(148, 105, 20, 0.35);
  color: #634305;
}

.commerce-alert-success {
  background: var(--emi-green-soft);
  border: 1px solid rgba(42, 126, 67, 0.35);
  color: var(--emi-green-dark);
}

.commerce-alert-info {
  background: var(--emi-sky-soft);
  border: 1px solid rgba(74, 117, 165, 0.35);
  color: var(--emi-navy);
}

/* ========================================================
   5. Cart Page Specifics (gio-hang.html)
   ======================================================== */
.cart-items-card {
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid var(--emi-border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--emi-shadow);
}

.cart-table {
  width: 100%;
  border-collapse: collapse;
}

.cart-table th {
  text-align: left;
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--emi-navy-soft);
  padding: 0 12px 14px;
  border-bottom: 1px solid var(--emi-border);
}

.cart-table th.col-price,
.cart-table th.col-total {
  text-align: right;
}

.cart-table th.col-qty {
  text-align: center;
}

.cart-table th.col-action {
  width: 44px;
  text-align: center;
}

.cart-row {
  border-bottom: 1px solid var(--emi-border-subtle);
}

.cart-row:last-child {
  border-bottom: none;
}

.cart-row td {
  padding: 18px 12px;
  vertical-align: middle;
}

.cart-product-cell {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-thumb {
  width: 64px;
  height: 64px;
  object-fit: contain;
  background: #ffffff;
  border: 1px solid var(--emi-border-subtle);
  border-radius: 12px;
  padding: 4px;
  flex-shrink: 0;
}

.cart-product-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cart-product-name {
  font: 600 15px/1.3 'Be Vietnam Pro', sans-serif;
  color: var(--emi-navy);
  margin: 0;
}

.cart-product-variant {
  display: inline-block;
  font-size: 12.5px;
  color: var(--emi-navy-soft);
  background: var(--emi-cream-soft);
  padding: 2px 8px;
  border-radius: 6px;
  width: fit-content;
}

.cart-price {
  font: 600 14px/1 'Be Vietnam Pro', sans-serif;
  color: var(--emi-navy);
  text-align: right;
  white-space: nowrap;
}

.cart-total {
  font: 700 15px/1 'Be Vietnam Pro', sans-serif;
  color: var(--emi-navy);
  text-align: right;
  white-space: nowrap;
}

.cart-remove-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: #7b8ea6;
  border-radius: 999px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
}

.cart-remove-btn:hover {
  background: var(--emi-danger-soft);
  color: var(--emi-danger);
}

.cart-note-box {
  background: var(--emi-cream-soft);
  border: 1px dashed var(--emi-border-strong);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--emi-navy-soft);
  margin-top: 24px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

/* Order Summary Box */
.commerce-summary-card {
  background: rgba(255, 253, 248, 0.95);
  border: 1px solid var(--emi-border-strong);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--emi-shadow);
  position: sticky;
  top: 100px;
}

.summary-title {
  font: 600 18px/1.3 'Be Vietnam Pro', sans-serif;
  color: var(--emi-navy);
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--emi-border);
}

.summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  color: var(--emi-navy-soft);
  margin-bottom: 12px;
}

.summary-row.total-row {
  font-size: 17px;
  font-weight: 700;
  color: var(--emi-navy);
  padding-top: 14px;
  margin-top: 14px;
  border-top: 1px solid var(--emi-border-strong);
}

.summary-row .val {
  font-weight: 600;
  color: var(--emi-navy);
  font-variant-numeric: tabular-nums;
}

.summary-row.total-row .val {
  font-size: 22px;
  color: var(--emi-navy-dark);
}

.summary-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 22px;
}

/* Empty State */
.commerce-empty-state {
  text-align: center;
  padding: 60px 24px;
  background: rgba(255, 253, 248, 0.7);
  border-radius: 20px;
  border: 1px dashed var(--emi-border-strong);
}

.empty-icon-wrap {
  font-size: 44px;
  color: var(--emi-sky-dark);
  margin-bottom: 16px;
}

.commerce-empty-state h2 {
  font: normal 28px/1.3 var(--emi-serif);
  color: var(--emi-navy);
  margin: 0 0 10px;
}

.commerce-empty-state p {
  font-size: 14.5px;
  color: var(--emi-navy-soft);
  max-width: 480px;
  margin: 0 auto 24px;
}

/* ========================================================
   6. Checkout Page Specifics (thanh-toan.html)
   ======================================================== */
.checkout-section {
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid var(--emi-border);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--emi-shadow);
}

.checkout-section-title {
  font: 600 17px/1.3 'Be Vietnam Pro', sans-serif;
  color: var(--emi-navy);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkout-section-num {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: var(--emi-navy);
  color: var(--emi-cream);
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Payment Radio Options */
.payment-radio-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.payment-card {
  position: relative;
  border: 1px solid var(--emi-border-strong);
  border-radius: 14px;
  padding: 16px 18px 16px 48px;
  background: #ffffff;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.payment-card:hover {
  border-color: var(--emi-navy);
}

.payment-card.is-selected {
  border-color: var(--emi-navy);
  background: var(--emi-cream-light);
  box-shadow: 0 0 0 2px var(--emi-navy);
}

.payment-card.is-disabled {
  opacity: 0.65;
  cursor: not-allowed;
  background: #f8f6f2;
}

.payment-card-input {
  position: absolute;
  left: 18px;
  top: 18px;
  width: 18px;
  height: 18px;
  accent-color: var(--emi-navy);
}

.payment-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.payment-card-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--emi-navy);
}

.payment-card-desc {
  font-size: 13px;
  color: var(--emi-navy-soft);
  margin-top: 4px;
  line-height: 1.4;
}

.payment-badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--emi-cream-soft);
  color: var(--emi-navy);
  border: 1px solid var(--emi-border-strong);
}

/* Coupon Box */
.coupon-wrap {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.coupon-wrap .form-input {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.coupon-btn {
  min-height: 48px;
  padding: 0 20px;
  border-radius: 12px;
  background: var(--emi-cream-soft);
  border: 1px solid var(--emi-border-strong);
  color: var(--emi-navy);
  font: 600 13.5px 'Be Vietnam Pro', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.coupon-btn:hover {
  background: var(--emi-navy);
  color: var(--emi-cream);
  border-color: transparent;
}

/* Checkout Item Mini Row */
.checkout-items-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  border-bottom: 1px solid var(--emi-border);
}

.checkout-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
}

.checkout-item-thumb {
  width: 44px;
  height: 44px;
  object-fit: contain;
  background: #ffffff;
  border: 1px solid var(--emi-border-subtle);
  border-radius: 8px;
  padding: 2px;
  flex-shrink: 0;
}

.checkout-item-meta {
  flex: 1;
  min-width: 0;
}

.checkout-item-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--emi-navy);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0;
}

.checkout-item-sub {
  font-size: 12.5px;
  color: var(--emi-navy-soft);
}

.checkout-item-total {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--emi-navy);
  white-space: nowrap;
}

/* Consent Box */
.consent-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 18px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--emi-navy-soft);
}

.consent-checkbox {
  width: 20px;
  min-width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--emi-navy);
  cursor: pointer;
}

.consent-label a {
  color: var(--emi-sky-dark);
  text-decoration: underline;
}

/* Submitting state indicator */
[data-order-status="submitting"] [data-text="normal"] {
  display: none !important;
}
[data-order-status="submitting"] [data-text="submitting"] {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
}

/* ========================================================
   7. Thank You / Receipt Page Specifics (cam-on.html)
   ======================================================== */
.receipt-wrapper {
  max-width: 680px;
  margin: 0 auto;
}

.receipt-card {
  background: rgba(255, 253, 248, 0.95);
  border: 1px solid var(--emi-border-strong);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: var(--emi-shadow);
  text-align: center;
}

.receipt-badge-success {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  background: var(--emi-green-soft);
  color: var(--emi-green);
  font-size: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 2px solid rgba(42, 126, 67, 0.25);
}

.receipt-title {
  font: normal 32px/1.2 var(--emi-serif);
  color: var(--emi-navy);
  margin: 0 0 10px;
}

.receipt-subtitle {
  font-size: 15px;
  color: var(--emi-navy-soft);
  margin: 0 0 28px;
  line-height: 1.5;
}

.receipt-meta-grid {
  background: #ffffff;
  border: 1px solid var(--emi-border);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 24px;
  text-align: left;
}

.receipt-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--emi-border-subtle);
  font-size: 14px;
}

.receipt-meta-row:last-child {
  border-bottom: none;
}

.receipt-meta-row .label {
  color: var(--emi-navy-soft);
}

.receipt-meta-row .val {
  font-weight: 600;
  color: var(--emi-navy);
}

.receipt-meta-row .val-code {
  font: 700 16px var(--emi-serif);
  color: var(--emi-navy-dark);
  letter-spacing: 0.05em;
}

.receipt-meta-row .val-total {
  font-size: 18px;
  font-weight: 700;
  color: var(--emi-navy-dark);
}

/* Payment Instructions Box */
.instructions-box {
  background: var(--emi-cream-soft);
  border: 1px solid var(--emi-border);
  border-radius: 16px;
  padding: 22px 24px;
  text-align: left;
  margin-bottom: 28px;
}

.instructions-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--emi-navy);
  margin-bottom: 10px;
}

.instructions-body {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--emi-navy-soft);
  margin: 0;
}

.instructions-body strong {
  color: var(--emi-navy);
}

/* QR Code Display Container */
.qr-instruction-card {
  margin-top: 16px;
  padding: 16px;
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid var(--emi-border-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.qr-box-img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  background: #ffffff;
  padding: 8px;
  border: 1px solid var(--emi-border-subtle);
  border-radius: 8px;
}

.qr-memo-badge {
  font-size: 13px;
  color: var(--emi-navy);
  background: var(--emi-cream);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--emi-border);
}

.qr-memo-badge code {
  font-weight: 700;
  color: var(--emi-navy-dark);
}

.qr-ttl {
  font-size: 12.5px;
  color: var(--emi-amber);
  font-weight: 600;
}

/* Receipt Actions */
.receipt-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================================
   8. Responsive Adjustments (360px, 390px, 430px, 768px, 900px)
   ======================================================== */
@media (max-width: 900px) {
  .commerce-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .cart-table thead {
    display: none;
  }

  .cart-table,
  .cart-table tbody,
  .cart-row,
  .cart-row td {
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  .cart-row {
    padding: 14px 0;
    position: relative;
  }

  .cart-row td {
    padding: 6px 0;
  }

  .cart-product-cell {
    gap: 12px;
    padding-right: 48px;
    box-sizing: border-box;
  }

  .cart-product-info {
    min-width: 0;
    flex: 1;
  }

  .cart-product-name {
    word-break: break-word;
    overflow-wrap: break-word;
    line-height: 1.35;
  }

  .cart-thumb {
    width: 56px;
    height: 56px;
  }

  .cart-row td.col-qty,
  .cart-row td.col-price,
  .cart-row td.col-total {
    text-align: left;
  }

  .cart-row td.col-action {
    position: absolute;
    top: 14px;
    right: 0;
    width: auto;
  }

  .cart-mobile-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
  }
}

@media (max-width: 600px) {
  .commerce-page {
    padding-top: 90px;
  }

  .commerce-container {
    padding: 0 16px 60px;
  }

  .commerce-title {
    font-size: 26px;
  }

  .form-row-2 {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .cart-items-card,
  .checkout-section,
  .commerce-summary-card,
  .receipt-card {
    padding: 20px 16px;
    border-radius: 16px;
  }

  .payment-card {
    padding: 14px 14px 14px 44px;
  }

  .receipt-actions {
    flex-direction: column;
  }

  .receipt-actions .commerce-btn {
    width: 100%;
  }

  .scene-commerce-actions {
    width: 100%;
  }

  .scene-add-cart-btn {
    flex: 1;
    justify-content: center;
  }
}

.scene-sticky-buy { display: none; }

@media (max-width: 768px) {
  body[data-commerce="on"]:has([data-sticky-buy]) {
    padding-bottom: calc(8rem + env(safe-area-inset-bottom));
  }

  .scene-sticky-buy:not([hidden]) {
    position: fixed;
    inset: auto 0 0;
    z-index: 20;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px 12px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: var(--emi-cream-light);
    color: var(--emi-navy);
    box-shadow: 0 -4px 20px rgba(31, 53, 87, 0.14);
    font-size: 13px;
  }

  .scene-sticky-summary { display: grid; gap: 3px; }
  .scene-sticky-summary strong { font-size: 17px; }
  .scene-sticky-buy .scene-cta-btn { min-height: 44px; }
  .scene-sticky-buy [role="status"] { grid-column: 1 / -1; margin: 0; }
  .scene-sticky-buy [role="status"]:empty { display: none; }
}

@media (max-width: 390px) {
  .has-mobile-chapters .site-header .hd-navigation { gap: 8px; }
  .has-mobile-chapters .hd-nav-tools { gap: 6px; }
  .has-mobile-chapters .hd-logo { font-size: 24px; }
  .has-mobile-chapters .hd-menu-toggle { padding-inline: 10px; }
}