/**
 * Rhythm of Nature — brand design tokens & shell overrides
 * Spec: doc/24节气/四季/rhytnat-brand-guidelines.md
 * Rollout: Phase A–D (tokens, shell, home, commerce/content sweep)
 */

:root {
  --rn-bone: #F5F1E8;
  --rn-moss: #22362B;
  --rn-moss-hover: #2F4A3B;
  --rn-sage: #8AA286;
  --rn-clay: #C4754A;
  --rn-clay-hover: #B06840;
  --rn-moss-rgb: 34, 54, 43;
  --rn-sage-rgb: 138, 162, 134;
  --rn-clay-rgb: 196, 117, 74;
  --rn-bone-rgb: 245, 241, 232;

  /* App aliases — primary UI uses Moss, not seasonal green */
  --color-primary: var(--rn-moss);
  --color-primary-hover: var(--rn-moss-hover);
  --color-accent: var(--rn-clay);
  --color-text: var(--rn-moss);
  --color-text-muted: rgba(34, 54, 43, 0.68);
  --color-border: rgba(34, 54, 43, 0.12);
  --color-bg: var(--rn-bone);

  /* Bootstrap semantic success → Moss (kills Material green across views) */
  --bs-success: #22362B;
  --bs-success-rgb: 34, 54, 43;
  --bs-primary: #22362B;
  --bs-primary-rgb: 34, 54, 43;
  --bs-link-color: #22362B;
  --bs-link-hover-color: #2F4A3B;

  --rn-radius-card: 20px;
  --rn-radius-control: 12px;
  --rn-radius-pill: 999px;
  --rn-space-section: 64px;
  --rn-space-section-mobile: 48px;

  --rn-font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --rn-font-text: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  font-family: var(--rn-font-text);
  color: var(--rn-moss);
  background-color: var(--rn-bone);
  line-height: 1.7;
}

h1, h2, h3, .h1, .h2, .h3,
.navbar-brand-name,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-family: var(--rn-font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--rn-moss);
}

h1, .h1 { font-size: clamp(2.5rem, 4vw, 4rem); line-height: 1.1; }
h2, .h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.2; }
h3, .h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); line-height: 1.3; font-weight: 600; }

.article-title,
.blog-card-title,
.solar-term-hero-title {
  font-family: var(--rn-font-display);
  color: var(--rn-moss);
}

a {
  color: var(--rn-moss);
}
a:hover {
  color: var(--rn-moss-hover);
}

/* Primary CTAs: Moss */
.btn-success,
.btn-primary {
  --bs-btn-bg: var(--rn-moss);
  --bs-btn-border-color: var(--rn-moss);
  --bs-btn-hover-bg: var(--rn-moss-hover);
  --bs-btn-hover-border-color: var(--rn-moss-hover);
  --bs-btn-active-bg: var(--rn-moss-hover);
  --bs-btn-active-border-color: var(--rn-moss-hover);
  --bs-btn-disabled-bg: var(--rn-moss);
  --bs-btn-disabled-border-color: var(--rn-moss);
  background-color: var(--rn-moss) !important;
  border-color: var(--rn-moss) !important;
  color: var(--rn-bone) !important;
  border-radius: var(--rn-radius-pill);
  font-family: var(--rn-font-text);
  font-weight: 500;
}
.btn-success:hover,
.btn-success:focus,
.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--rn-moss-hover) !important;
  border-color: var(--rn-moss-hover) !important;
  color: var(--rn-bone) !important;
}

.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-success {
  border-radius: var(--rn-radius-pill);
  font-weight: 500;
}
.btn-outline-primary,
.btn-outline-success {
  --bs-btn-color: var(--rn-moss);
  --bs-btn-border-color: var(--rn-moss);
  --bs-btn-hover-bg: var(--rn-moss);
  --bs-btn-hover-border-color: var(--rn-moss);
  --bs-btn-hover-color: var(--rn-bone);
  color: var(--rn-moss) !important;
  border-color: var(--rn-moss) !important;
  background: transparent !important;
}
.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-success:hover,
.btn-outline-success:focus {
  color: var(--rn-bone) !important;
  background-color: var(--rn-moss) !important;
  border-color: var(--rn-moss) !important;
}

/*
 * Split CTAs (.btn-group): brand classes set full pill radius on every .btn,
 * which fights Bootstrap's first/last corner rules and leaves white gaps on
 * the filled half (Add to Cart). Outer edges stay pill; inner edges flush.
 */
.btn-group > .btn {
  border-radius: 0;
}
.btn-group > .btn:first-child {
  border-top-left-radius: var(--rn-radius-pill);
  border-bottom-left-radius: var(--rn-radius-pill);
}
.btn-group > .btn:last-child {
  border-top-right-radius: var(--rn-radius-pill);
  border-bottom-right-radius: var(--rn-radius-pill);
}
.btn-group > .btn:only-child {
  border-radius: var(--rn-radius-pill);
}
.btn-group > .btn-outline-success,
.btn-group > .btn-outline-primary,
.btn-group > .btn-outline-secondary {
  background-color: #fff !important;
}
.btn-group > .btn-outline-success:hover,
.btn-group > .btn-outline-success:focus,
.btn-group > .btn-outline-primary:hover,
.btn-group > .btn-outline-primary:focus {
  background-color: var(--rn-moss) !important;
}

.btn-accent,
.btn-clay {
  background-color: var(--rn-clay) !important;
  border-color: var(--rn-clay) !important;
  color: var(--rn-bone) !important;
  border-radius: var(--rn-radius-pill);
  font-weight: 500;
}
.btn-accent:hover,
.btn-clay:hover {
  background-color: var(--rn-clay-hover) !important;
  border-color: var(--rn-clay-hover) !important;
  color: var(--rn-bone) !important;
}

/* Brand / link greens that used Bootstrap success */
.text-success,
.text-primary {
  color: var(--rn-moss) !important;
}
.bg-success {
  background-color: var(--rn-moss) !important;
}
.border-success,
.border-primary {
  border-color: var(--rn-moss) !important;
}
.link-success {
  color: var(--rn-moss) !important;
}
.link-success:hover {
  color: var(--rn-moss-hover) !important;
}

/* Phase D: price & promo emphasis = Clay */
.text-price,
#product-price-display,
.product-price,
.subscription-price,
.cart-line-price,
.checkout-discount-amount {
  color: var(--rn-clay) !important;
  font-weight: 600;
}
.text-promo,
.free-shipping-hint {
  color: var(--rn-clay) !important;
}

.form-control,
.form-select {
  border-radius: var(--rn-radius-control);
  border-color: var(--color-border);
}
.form-control:focus,
.form-select:focus {
  border-color: rgba(var(--rn-moss-rgb), 0.45) !important;
  box-shadow: 0 0 0 0.2rem rgba(var(--rn-moss-rgb), 0.16) !important;
}

.card {
  border-radius: var(--rn-radius-card);
  background-color: var(--rn-bone);
  border-color: var(--color-border);
  color: var(--rn-moss);
}
/* Footer must stay Bone — Bootstrap / bg-white caps create a harsh white slab under CTAs */
.card > .card-header,
.card > .card-footer,
.card > .card-footer.bg-white,
.card > .card-header.bg-white {
  background-color: var(--rn-bone) !important;
  background: var(--rn-bone) !important;
}

.text-muted {
  color: var(--color-text-muted) !important;
}

/* Checkout / cart: keep calm — no loud fills */
.cart-page .card,
.checkout-page .card,
#purchaseCartSidebar .card {
  box-shadow: none;
}

/* Cart surface — same calm hierarchy as checkout */
.cart-page .cart-card-header {
  background-color: transparent !important;
  border-bottom: 1px solid var(--color-border);
  padding: 1.1rem 1.25rem;
}
.cart-page .cart-section-title {
  font-family: var(--rn-font-display);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--rn-moss);
  letter-spacing: -0.01em;
}
.cart-page .cart-section-title .fas,
.cart-page .cart-section-title .fa {
  color: var(--rn-sage);
  font-size: 0.85em;
}
.cart-page .cart-currency-badge {
  font-family: var(--rn-font-text);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: rgba(var(--rn-moss-rgb), 0.06);
  border-radius: var(--rn-radius-pill);
  padding: 0.35rem 0.75rem;
  white-space: nowrap;
}
.cart-page .cart-table {
  --bs-table-bg: transparent;
  color: var(--rn-moss);
  margin-bottom: 0;
}
.cart-page .cart-table > :not(caption) > * > * {
  background-color: transparent;
  border-bottom-color: var(--color-border);
  vertical-align: middle;
}
.cart-page .cart-table thead th {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom-width: 1px;
}
.cart-page .cart-product {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  min-width: 0;
}
.cart-page .cart-product__thumb {
  flex: 0 0 auto;
}
.cart-page .cart-product__thumb img,
.cart-page .cart-product__placeholder {
  display: block;
  width: 64px;
  height: 64px;
  border-radius: var(--rn-radius-control);
  object-fit: cover;
}
.cart-page .cart-product__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--rn-moss-rgb), 0.06);
  color: var(--color-text-muted);
}
.cart-page .cart-product__info {
  min-width: 0;
  flex: 1 1 auto;
}
.cart-page .cart-product__title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: anywhere;
  font-weight: 600;
  line-height: 1.35;
  color: var(--rn-moss);
}
.cart-page .cart-product__meta {
  margin-top: 0.15rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  word-break: break-word;
}
.cart-page .cart-qty-input {
  max-width: 5.5rem;
  margin-inline: auto;
  border-radius: var(--rn-radius-control);
}
.cart-page .cart-price {
  color: var(--rn-clay);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.cart-page .cart-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.cart-page .cart-summary {
  background: rgba(var(--rn-moss-rgb), 0.045);
  border: 1px solid var(--color-border);
  border-radius: var(--rn-radius-card);
  padding: 1.25rem;
}
.cart-page .cart-summary #cart-total {
  color: var(--rn-clay);
  font-weight: 600;
}
.cart-page .cart-remove-btn {
  min-width: 2.25rem;
}

/* Checkout surface — align with brand tokens (Bone / Moss / Clay, calm hierarchy) */
.checkout-page .checkout-card-header {
  background-color: transparent !important;
  border-bottom: 1px solid var(--color-border);
  padding: 1.1rem 1.25rem;
}
.checkout-page .checkout-section-title {
  font-family: var(--rn-font-display);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--rn-moss);
  letter-spacing: -0.01em;
}
.checkout-page .checkout-section-title .fas,
.checkout-page .checkout-section-title .fa {
  color: var(--rn-sage);
  font-size: 0.85em;
}
.checkout-page .form-label {
  font-weight: 500;
  color: var(--rn-moss);
}
.checkout-page .form-control,
.checkout-page .form-select {
  min-height: 2.75rem;
}
.checkout-page .form-select {
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
}
.checkout-page .list-group-item {
  background: transparent;
  border-color: var(--color-border);
  color: var(--rn-moss);
  padding: 1rem 0;
}
.checkout-page .list-group-item:first-child {
  border-top: 0;
  padding-top: 0.25rem;
}
.checkout-page .checkout-line-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}
.checkout-page .checkout-line-item__info {
  min-width: 0;
}
.checkout-page .checkout-line-item__title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: anywhere;
  font-weight: 600;
  line-height: 1.35;
  color: var(--rn-moss);
}
.checkout-page .checkout-line-item__sku,
.checkout-page .checkout-line-item__variant {
  margin-top: 0.15rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  line-height: 1.4;
  word-break: break-word;
}
.checkout-page .checkout-line-item__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  min-width: 0;
}
.checkout-page .checkout-line-item__qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  flex: 1 1 auto;
}
.checkout-page .checkout-line-item__price {
  flex: 0 0 auto;
  min-width: 6.25rem;
  max-width: 42%;
  text-align: right;
}
.checkout-page .checkout-line-price {
  color: var(--rn-clay);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  line-height: 1.3;
}
.checkout-page .checkout-line-unit {
  margin-top: 0.1rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.checkout-page .checkout-remove-item {
  color: var(--color-text-muted) !important;
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
}
.checkout-page .checkout-remove-item:hover,
.checkout-page .checkout-remove-item:focus {
  color: var(--rn-clay) !important;
}
.checkout-page .checkout-qty-group {
  max-width: 9rem;
}
.checkout-page .checkout-qty-group > .btn {
  border-color: var(--color-border);
  color: var(--rn-moss);
  min-width: 2.25rem;
}
.checkout-page .checkout-qty-group > .btn:first-child {
  border-top-left-radius: var(--rn-radius-control);
  border-bottom-left-radius: var(--rn-radius-control);
}
.checkout-page .checkout-qty-group > .btn:last-child {
  border-top-right-radius: var(--rn-radius-control);
  border-bottom-right-radius: var(--rn-radius-control);
}
.checkout-page .checkout-qty-group > .btn:hover,
.checkout-page .checkout-qty-group > .btn:focus {
  background-color: rgba(var(--rn-moss-rgb), 0.06);
  border-color: rgba(var(--rn-moss-rgb), 0.35);
  color: var(--rn-moss);
}
.checkout-page .checkout-qty-group > .form-control {
  border-radius: 0;
  border-color: var(--color-border);
  min-height: 2.25rem;
}
.checkout-page .checkout-promo-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}
.checkout-page .checkout-promo-row .form-control {
  flex: 1 1 auto;
  min-width: 0;
}
.checkout-page .checkout-promo-row .btn {
  flex: 0 0 auto;
  border-radius: var(--rn-radius-pill);
  padding-left: 1.1rem;
  padding-right: 1.1rem;
}
.checkout-page .checkout-discount-row {
  display: none;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.checkout-page .checkout-discount-row.is-visible {
  display: flex;
}
.checkout-page .checkout-back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
}
.checkout-page .checkout-back-link:hover,
.checkout-page .checkout-back-link:focus {
  color: var(--rn-moss);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.checkout-page #checkout-total {
  color: var(--rn-clay);
  font-weight: 600;
}

.rn-section {
  padding-top: var(--rn-space-section);
  padding-bottom: var(--rn-space-section);
}
@media (max-width: 767.98px) {
  .rn-section {
    padding-top: var(--rn-space-section-mobile);
    padding-bottom: var(--rn-space-section-mobile);
  }
}

.rn-caption {
  font-family: var(--rn-font-text);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rn-sage);
}

/* Soft hover for content cards (no Material green) */
.rn-card-hover:hover,
.blog-card:hover,
.solar-term-card:hover,
.related-card:hover,
.home-inspiration-card:hover {
  border-color: rgba(var(--rn-clay-rgb), 0.4) !important;
  box-shadow: 0 8px 24px rgba(var(--rn-moss-rgb), 0.08) !important;
}

/* Blog category nav — avoid Bootstrap list-group white fill on Bone cards */
.blog-category-nav {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.blog-category-nav__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--rn-radius-control);
  color: var(--rn-moss);
  text-decoration: none;
  background: transparent;
  line-height: 1.4;
  font-size: 0.9375rem;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.blog-category-nav__item:hover {
  background: rgba(var(--rn-moss-rgb), 0.06);
  color: var(--rn-moss);
}
.blog-category-nav__item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 0.2rem rgba(var(--rn-moss-rgb), 0.16);
}
.blog-category-nav__item.is-active {
  background: rgba(var(--rn-moss-rgb), 0.1);
  color: var(--rn-moss);
  font-weight: 600;
}
.blog-category-nav__label {
  min-width: 0;
}
.blog-category-nav__count {
  flex-shrink: 0;
  min-width: 1.5rem;
  padding: 0.1rem 0.45rem;
  border-radius: var(--rn-radius-pill);
  background: rgba(var(--rn-moss-rgb), 0.08);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.3;
  text-align: center;
}
.blog-category-nav__item.is-active .blog-category-nav__count {
  background: rgba(var(--rn-moss-rgb), 0.16);
  color: var(--rn-moss);
}

.blog-card-category {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 0.5rem;
  padding: 0.2rem 0.7rem;
  border-radius: var(--rn-radius-pill);
  background: rgba(var(--rn-moss-rgb), 0.08);
  color: var(--rn-moss);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}
.blog-card-category:hover {
  background: rgba(var(--rn-moss-rgb), 0.14);
  color: var(--rn-moss);
}

/* Blog list cards: keep 16:9 covers intact (no 250px object-fit crop) */
.blog-card {
  overflow: hidden;
  background-color: var(--rn-bone);
}
.blog-card .card-body,
.blog-card .card-footer,
.blog-card .card-footer.bg-white {
  background-color: var(--rn-bone) !important;
  background: var(--rn-bone) !important;
  border: 0 !important;
  box-shadow: none;
}
.blog-card__cover {
  display: block;
  line-height: 0;
  overflow: hidden;
  text-decoration: none;
}
.blog-card__image,
.blog-card .card-img-top {
  display: block;
  width: 100% !important;
  height: auto !important;
  max-width: 100%;
  max-height: none !important;
  object-fit: contain !important;
  object-position: center;
}

/* Page chrome: Bone / Sage wash only — no Material mint or Bootstrap gray */
.rn-band {
  background: linear-gradient(
    135deg,
    rgba(var(--rn-sage-rgb), 0.18) 0%,
    var(--rn-bone) 100%
  );
}

.rn-band--card {
  border-radius: var(--rn-radius-card);
}

.rn-panel {
  background-color: rgba(var(--rn-moss-rgb), 0.045);
  border: 1px solid var(--color-border);
  border-radius: var(--rn-radius-card);
}

.bg-light,
.bg-light-subtle {
  background-color: rgba(var(--rn-moss-rgb), 0.05) !important;
}

.alert-light {
  background-color: rgba(var(--rn-moss-rgb), 0.05);
  border-color: var(--color-border);
  color: var(--rn-moss);
}