/* ==========================================================================
   NGỌC CÁC — LUXURY JADE BOUTIQUE STYLESHEET
   Phối màu: Kem Ngà Ấm (#FAF7F2) + Xanh Ngọc Hoàng Gia (#143D30) + Vàng Kim (#C5A059)
   Font chữ: Be Vietnam Pro (Thống nhất toàn bộ nhận diện & giao diện)
   Tối ưu hóa: Trình duyệt di động, Zalo in-app browser & Desktop
   ========================================================================== */

:root {
  --color-ivory: #FAF7F2;
  --color-ivory-card: #FFFFFF;
  --color-ivory-subtle: #F3EFE6;
  --color-ivory-border: #E8E2D7;
  
  --color-jade-deep: #143D30;
  --color-jade-hover: #0D2B22;
  --color-jade-accent: #1D5E4A;
  --color-jade-soft: #E7F2ED;
  --color-jade-light: #F0F7F4;
  
  --color-gold: #C5A059;
  --color-gold-light: #DFC286;
  --color-gold-soft: #FBF6EB;
  --color-gold-border: rgba(197, 160, 89, 0.35);

  --color-amber: #B8781E;
  --color-amber-soft: #FEF7EE;
  --color-amber-border: rgba(184, 120, 30, 0.3);

  --color-gray-sold: #6B7280;
  --color-gray-soft: #F3F4F6;

  --color-text-main: #1B2420;
  --color-text-muted: #5A6560;
  --color-text-light: #4A5852;

  --font-sans: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 6px rgba(20, 61, 48, 0.04);
  --shadow-md: 0 6px 18px rgba(20, 61, 48, 0.08);
  --shadow-lg: 0 16px 36px rgba(20, 61, 48, 0.12);
  --shadow-gold: 0 4px 14px rgba(197, 160, 89, 0.25);

  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
}

/* CSS Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-ivory);
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text-main);
  background-color: var(--color-ivory);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}

/* ==========================================================================
   TOP ANNOUNCEMENT BAR
   ========================================================================== */
.top-announcement-bar {
  background: linear-gradient(90deg, #143D30 0%, #1A4D3D 50%, #143D30 100%);
  color: #FFFFFF;
  padding: 7px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--color-gold-border);
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
}

.announcement-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(197, 160, 89, 0.22);
  border: 1px solid var(--color-gold);
  color: var(--color-gold-light);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.live-dot {
  width: 7px;
  height: 7px;
  background-color: #10B981;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #10B981;
  animation: pulseDot 1.8s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.announcement-text {
  font-size: 13px;
  color: #F0F4F2;
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* ==========================================================================
   SITE HEADER
   ========================================================================== */
.site-header {
  background-color: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-ivory-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  padding-bottom: 10px;
  gap: 12px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-emblem {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--color-gold);
  filter: drop-shadow(0 2px 4px rgba(197, 160, 89, 0.25));
  transition: transform var(--transition-normal);
}

.brand-link:hover .brand-emblem {
  transform: rotate(30deg);
}

.brand-text {
  min-width: 0;
}

.shop-name {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-jade-deep);
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.shop-subtitle {
  font-size: 12px;
  color: #8C6212;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-util {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 13px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-util-measure {
  background-color: var(--color-gold-soft);
  color: #8C6B28;
  border: 1px solid var(--color-gold-border);
}

.btn-util-measure:hover {
  background-color: #F5ECCF;
  color: #6C511B;
}

.btn-util-group {
  background-color: var(--color-jade-soft);
  color: var(--color-jade-deep);
  border: 1px solid rgba(20, 61, 48, 0.15);
}

.btn-util-group:hover {
  background-color: #D6E7DF;
}

.btn-util-primary {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  border: 1px solid var(--color-jade-hover);
  box-shadow: 0 2px 8px rgba(20, 61, 48, 0.2);
}

.btn-util-primary:hover {
  background-color: var(--color-jade-hover);
}

/* ==========================================================================
   HERO COVER BANNER & LIVE INVENTORY STATS + MEASURE CTA
   ========================================================================== */
.hero-section {
  padding: 12px 0 10px;
  background: radial-gradient(circle at 50% 0%, #FFFFFF 0%, var(--color-ivory) 100%);
  border-bottom: 1px solid var(--color-ivory-border);
}

.hero-banner-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(180deg, #12382B 0%, #0C261D 100%);
  border: 1.5px solid rgba(197, 160, 89, 0.55);
  box-shadow: 0 10px 28px rgba(12, 38, 29, 0.18);
}

.hero-cover-media {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: #0E2E23;
}

.hero-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 58%;
  display: block;
  transform: scale(1.01);
}

.hero-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 32, 24, 0.12) 0%,
    rgba(10, 32, 24, 0.05) 50%,
    rgba(12, 38, 29, 0.88) 92%,
    #103226 100%
  );
  pointer-events: none;
}

.hero-cover-floating-badge {
  position: absolute;
  top: 10px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(12, 38, 29, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #F3DFB2;
  border: 1px solid rgba(197, 160, 89, 0.6);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  margin: -18px auto 0;
  padding: 0 16px 16px;
}

.gold-sparkle {
  color: #E5C170;
}

.hero-heading {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: #FAF7F2;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
}

.hero-desc {
  font-size: 13.5px;
  color: rgba(250, 247, 242, 0.82);
  line-height: 1.45;
  max-width: 620px;
  margin: 0 auto 10px;
}

/* Live Inventory Status Bar (Gọn trên 1 hàng ngang) */
.inventory-status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
  margin-bottom: 12px;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 9px;
  border-radius: var(--radius-full);
  font-size: 12px;
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--color-ivory-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.stat-pill:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.stat-circle {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.stat-available .stat-circle {
  background-color: #10B981;
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.6);
}
.stat-available {
  border-color: rgba(16, 185, 129, 0.45);
  background: #F0FDF4;
}

.stat-reserved .stat-circle {
  background-color: #F59E0B;
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.6);
}
.stat-reserved {
  border-color: rgba(245, 158, 11, 0.45);
  background: #FFFBEB;
}

.stat-sold .stat-circle {
  background-color: #9CA3AF;
}
.stat-sold {
  border-color: rgba(156, 163, 175, 0.45);
  background: #F9FAFB;
}

.stat-label {
  color: var(--color-text-muted);
  font-weight: 500;
}

.stat-num {
  font-weight: 700;
  color: var(--color-text-main);
}

/* Nút CTA Hướng Dẫn Đo Ni Vòng To & Ấn Tượng Cho Điện Thoại */
.btn-hero-measure-cta {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, #F6E3BA 0%, #DFB968 50%, #C59B43 100%);
  color: #0D2B22;
  border: 1.5px solid #FFF3D1;
  box-shadow: 0 6px 18px rgba(197, 160, 89, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.65);
  cursor: pointer;
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-hero-measure-cta:hover,
.btn-hero-measure-cta:active {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 8px 22px rgba(197, 160, 89, 0.52);
}

.cta-measure-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: #143D30;
  color: #F6E3BA;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(20, 61, 48, 0.3);
}

.cta-measure-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.cta-measure-title {
  font-size: 15px;
  font-weight: 700;
  color: #0D2B22;
  line-height: 1.25;
}

.cta-measure-sub {
  font-size: 12px;
  font-weight: 600;
  color: #284E3E;
  line-height: 1.3;
  margin-top: 2px;
}

.cta-measure-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(20, 61, 48, 0.12);
  color: #0D2B22;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   STICKY SEARCH BAR (TRƯỢT XUỐNG CÙNG KHI LĂN XEM SẢN PHẨM)
   ========================================================================== */
.sticky-search-bar {
  position: sticky;
  top: var(--header-height, 65px);
  z-index: 95;
  background-color: rgba(250, 247, 242, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-ivory-border);
  box-shadow: 0 4px 12px rgba(20, 61, 48, 0.05);
}

.sticky-search-bar .filter-row-search {
  margin-bottom: 0;
}

/* ==========================================================================
   CLEAN SMART FILTER BAR (HOÀN TOÀN KHÔNG STICKY CHE MÀN HÌNH)
   ========================================================================== */
.filter-section {
  padding: 10px 0 16px;
  position: relative;
  z-index: 10;
  background-color: transparent;
}

.filter-card {
  background-color: var(--color-ivory-card);
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}

/* Row 1: Search Box Full Width */
.filter-row-search {
  margin-bottom: 10px;
}

.filter-row-search .search-box {
  position: relative;
  width: 100%;
}

.filter-row-search .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
}

.filter-row-search .search-box input {
  width: 100%;
  padding: 10px 34px 10px 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-ivory-border);
  background-color: var(--color-ivory);
  font-size: 16px;
  transition: all var(--transition-fast);
}

.filter-row-search .search-box input:focus {
  border-color: var(--color-gold);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

.search-clear-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #D1D5DB;
  color: #374151;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
}

.search-clear-btn[hidden] {
  display: none !important;
}

/* Row 2: Status Tabs */
.filter-row-tabs {
  margin-bottom: 10px;
}

.status-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 2px;
}

.status-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 13px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  background-color: var(--color-ivory-subtle);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--color-jade-deep);
  background-color: #EBE5D8;
}

.tab-btn.active {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  border-color: var(--color-jade-hover);
  box-shadow: 0 2px 6px rgba(20, 61, 48, 0.22);
}

.tab-badge {
  font-size: 12px;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.08);
  font-weight: 600;
}

.tab-btn.active .tab-badge {
  background-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

.badge-green { color: #047857; }
.badge-amber { color: #B45309; }
.badge-gray { color: #4B5563; }

/* Row 3: Ni Size Selector (Trọng tâm cho người mua vòng) */
.filter-row-ni {
  padding-top: 10px;
  padding-bottom: 10px;
  border-top: 1px solid var(--color-ivory-subtle);
  border-bottom: 1px solid var(--color-ivory-subtle);
  margin-bottom: 8px;
}

.ni-filter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label-title {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-jade-deep);
}

.filter-label-title svg {
  color: var(--color-gold);
}

.link-measure-guide {
  font-size: 13px;
  color: #8C6212;
  font-weight: 500;
}

.link-measure-guide:hover {
  color: #6C410B;
}

.ni-quick-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 6px;
}

.ni-quick-chips::-webkit-scrollbar {
  display: none;
}

.chip-btn {
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-main);
  background-color: var(--color-ivory-subtle);
  border: 1px solid var(--color-ivory-border);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.chip-btn:hover {
  background-color: #E8E1D3;
  border-color: var(--color-gold);
}

.chip-btn.active {
  background-color: var(--color-gold-soft);
  color: #7A5B18;
  border-color: var(--color-gold);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(197, 160, 89, 0.2);
}

.ni-precise-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.precise-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.precise-input-wrap {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-ivory);
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  width: 112px;
  min-width: 112px;
  box-sizing: border-box;
}

.precise-input-wrap input {
  flex: 1;
  min-width: 0;
  width: 100%;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-jade-deep);
  text-align: center;
  background: transparent;
  border: none;
  outline: none;
  padding: 0;
}

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

.precise-input-wrap input[type=number] {
  -moz-appearance: textfield;
}

.precise-input-wrap .unit {
  font-size: 12px;
  font-weight: 500;
  color: #4A5852;
  margin-left: 4px;
  flex-shrink: 0;
}

.precise-hint {
  font-size: 12px;
  color: #8C6212;
}

/* Row 4: Advanced Filter Toggle (Mobile Friendly) */
.filter-row-adv-toggle {
  margin-bottom: 8px;
}

.btn-toggle-advanced-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 12px;
  background-color: var(--color-ivory-subtle);
  border: 1px dashed var(--color-gold-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-jade-deep);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-toggle-advanced-filter:hover {
  background-color: #ECE5D6;
  border-color: var(--color-gold);
}

.btn-toggle-advanced-filter svg {
  color: var(--color-gold);
  margin-right: 6px;
}

.toggle-arrow {
  font-size: 0.9rem;
  color: var(--color-gold);
  font-weight: bold;
}

/* Row 5: Dropdowns (Collapsible on Mobile, Expanded on Desktop) */
.filter-row-dropdowns {
  display: none;
  align-items: flex-end;
  gap: 10px;
  padding: 8px 0 10px;
  border-bottom: 1px dashed var(--color-ivory-subtle);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.filter-row-dropdowns.show {
  display: flex;
  animation: fadeInDown 0.2s ease;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 768px) {
  .filter-row-adv-toggle {
    display: none;
  }
  .filter-row-dropdowns {
    display: flex !important;
    padding-top: 4px;
  }
}

.dropdown-group {
  flex: 1;
  min-width: 120px;
}

.dropdown-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: normal;
  color: var(--color-text-muted);
  margin-bottom: 3px;
}

.dropdown-group select {
  width: 100%;
  padding: 8px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-ivory-border);
  background-color: var(--color-ivory);
  font-size: 16px;
  color: var(--color-text-main);
  cursor: pointer;
  appearance: auto;
}

.dropdown-group select:focus {
  border-color: var(--color-gold);
  background-color: #FFFFFF;
}

.filter-actions-group {
  flex: 0 0 auto;
  min-width: auto;
}

.btn-reset-filter {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  background-color: var(--color-ivory-subtle);
  border: 1px solid var(--color-ivory-border);
  transition: all var(--transition-fast);
}

.btn-reset-filter:hover {
  background-color: #E5DFD1;
  color: var(--color-text-main);
}

/* Filter Summary Bar */
.filter-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--color-ivory-subtle);
  font-size: 13px;
  color: var(--color-text-muted);
}

.summary-count strong {
  color: var(--color-jade-deep);
  font-size: 14px;
}

.active-filter-tags {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--color-jade-soft);
  color: var(--color-jade-deep);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}

.filter-tag-chip .remove-tag {
  cursor: pointer;
  font-weight: 700;
  margin-left: 2px;
}

/* ==========================================================================
   PRODUCT SHOWCASE & GRID
   ========================================================================== */
.products-section {
  padding: 24px 0 48px;
  min-height: 480px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* Thẻ Sản Phẩm Tối Ưu Cho Zalo Điện Thoại */
.product-card {
  background-color: var(--color-ivory-card);
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold-border);
}

/* Card Visual Header */
.card-media-wrap {
  position: relative;
  width: 100%;
  padding-top: 100%; /* Vuông 1:1 tôn vinh dáng vòng */
  background: radial-gradient(circle, #F3EFE6 0%, #E8E2D7 100%);
  cursor: pointer;
  overflow: hidden;
}

.card-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  font-size: 0;
  color: transparent;
  transition: transform 0.5s ease;
}

.product-card:hover .card-img {
  transform: scale(1.05);
}

/* SVG Fallback khi không có ảnh */
.card-img-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, #F3EFE6 0%, #E8E2D7 100%);
  color: var(--color-jade-deep);
  padding: 20px;
  text-align: center;
}

.card-img-fallback svg {
  width: 64px;
  height: 64px;
  color: var(--color-gold);
  margin-bottom: 8px;
}

/* Badges on Product Image */
.card-badge-top-left {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 2;
}

.card-code-badge {
  background-color: rgba(20, 61, 48, 0.9);
  color: #FFFFFF;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  backdrop-filter: blur(4px);
}

.card-status-badge {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: normal;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}

.card-status-badge.status-available {
  background-color: #065F46;
  color: #FFFFFF;
}

.card-status-badge.status-reserved {
  background-color: #B45309;
  color: #FFFFFF;
}

.card-status-badge.status-sold {
  background-color: #4B5563;
  color: #FFFFFF;
}

.card-badge-top-right {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
  z-index: 2;
}

.card-feature-pill {
  background-color: rgba(255, 255, 255, 0.92);
  color: var(--color-text-main);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
  max-width: 100%;
}

/* Dấu mộc ĐÃ HỮU DUYÊN dạng con dấu tròn Á Đông */
.stamp-sold-seal {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-12deg);
  width: 110px;
  height: 110px;
  border: 3px dashed #B91C1C;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #B91C1C;
  background-color: rgba(254, 242, 242, 0.85);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  text-align: center;
  padding: 6px;
  pointer-events: none;
  z-index: 3;
  box-shadow: 0 4px 12px rgba(185, 28, 28, 0.25);
}

.stamp-sold-seal .seal-main {
  font-size: 14px;
  text-transform: uppercase;
  font-family: var(--font-sans);
  font-weight: 700;
}

.stamp-sold-seal .seal-sub {
  font-size: 12px;
  font-weight: 600;
}

/* Card Content Details */
.card-body {
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-main);
  line-height: 1.45;
  min-height: 44px;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.card-title:hover {
  color: var(--color-jade-deep);
}

/* Hàng Thông Số Vàng Cho Người Mua Vòng (Hiển thị thẳng Ni 1 dòng rõ ràng) */
.card-spec-strip {
  background-color: var(--color-ivory-subtle);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  row-gap: 4px;
  column-gap: 6px;
  min-height: 32px;
  height: auto;
}

.spec-ni-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-jade-deep);
  white-space: nowrap;
  letter-spacing: normal;
  flex-shrink: 0;
}

.spec-item-dim {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: right;
  white-space: nowrap;
}

.card-material-style {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  min-width: 0;
  max-width: 100%;
}

.card-material-style strong {
  font-weight: 500;
  color: var(--color-jade-deep);
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}

/* Card Price Row */
.card-price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: auto;
  margin-bottom: 10px;
  padding-top: 4px;
}

.card-price {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-jade-deep);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.card-edition {
  font-size: 12px;
  color: #8C6212;
  font-weight: 600;
}

/* Card Action Buttons (Touch Target chuẩn >= 44px) */
.card-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.btn-card-detail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  transition: all var(--transition-fast);
  border: 1px solid var(--color-jade-hover);
  box-shadow: 0 1px 4px rgba(20, 61, 48, 0.15);
  cursor: pointer;
}

.btn-card-detail:hover {
  background-color: var(--color-jade-hover);
  transform: translateY(-1px);
}

.card-btn-subgroup {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.btn-card-reserve {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 8px;
  background-color: var(--color-gold-soft);
  color: #7A5813;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-card-reserve:hover {
  background-color: #F7EECD;
  color: #5C410B;
}

.btn-card-reserve-full {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
}

.btn-card-zalo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 44px;
  background-color: #E7F2ED;
  color: var(--color-jade-deep);
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  border: 1px solid rgba(20, 61, 48, 0.2);
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-card-zalo:hover {
  background-color: #D6E7DF;
}

.btn-card-ask-similar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 44px;
  background-color: var(--color-ivory-subtle);
  color: var(--color-text-main);
  border: 1px solid var(--color-ivory-border);
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  transition: all var(--transition-fast);
  cursor: pointer;
  width: 100%;
}

.btn-card-ask-similar:hover {
  background-color: #E8E2D5;
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background-color: var(--color-ivory-card);
  border: 1px dashed var(--color-gold-border);
  border-radius: var(--radius-lg);
  max-width: 580px;
  margin: 30px auto;
}

.empty-icon {
  margin-bottom: 14px;
}

.empty-title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 8px;
}

.empty-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.empty-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Buttons General */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  border: 1px solid var(--color-jade-hover);
  box-shadow: 0 3px 10px rgba(20, 61, 48, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-jade-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-jade-deep);
  border: 1px solid var(--color-jade-deep);
}

.btn-outline:hover {
  background-color: var(--color-jade-soft);
}

.btn-zalo {
  background-color: #0068FF;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 104, 255, 0.3);
}

.btn-zalo:hover {
  background-color: #0056D6;
}

.btn-gold {
  background: linear-gradient(135deg, #DFC286 0%, #C5A059 100%);
  color: #241A06;
  font-weight: 700;
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  filter: brightness(1.06);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   TRUST SECTION
   ========================================================================== */
.trust-section {
  padding: 36px 0;
  background-color: var(--color-ivory-subtle);
  border-top: 1px solid var(--color-ivory-border);
  border-bottom: 1px solid var(--color-ivory-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.trust-card {
  text-align: center;
  padding: 14px;
}

.trust-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.trust-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-jade-deep);
  margin-bottom: 6px;
}

.trust-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* ==========================================================================
   SITE FOOTER
   ========================================================================== */
.site-footer {
  background-color: #111A16;
  color: #D1D8D4;
  padding: 48px 0 0;
  font-size: 0.88rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr 1.2fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-shop-name {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 12px;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.footer-about {
  font-size: 13px;
  color: #9BA49F;
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-gold);
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-zalo-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: #0068FF;
  color: #FFFFFF;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 4px;
}

.footer-group-btn {
  color: var(--color-gold-light);
  font-size: 0.82rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.bank-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(197, 160, 89, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bank-acc-num {
  font-family: monospace;
  font-size: 1.05rem;
  color: var(--color-gold-light);
  letter-spacing: 0.05em;
  font-weight: 700;
}

.bank-notice {
  font-size: 0.75rem;
  color: #8E9994;
  margin-top: 8px;
  font-style: italic;
}

.footer-bottom {
  padding: 18px 0;
  background-color: #0A110E;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.78rem;
  color: #717D77;
}

.admin-portal-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-gold);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(197, 160, 89, 0.3);
  transition: all var(--transition-fast);
}

.admin-portal-link:hover {
  background-color: rgba(197, 160, 89, 0.15);
  color: #FFFFFF;
}

/* ==========================================================================
   MODALS ARCHITECTURE (Shared Overlay & Backdrop)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(10, 20, 16, 0.82) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background-color: #FFFFFF !important;
  opacity: 1 !important;
  isolation: isolate;
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(10, 20, 16, 0.45);
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-ivory-subtle);
  color: var(--color-text-main);
  font-size: 24px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: #E2DBD0;
  transform: rotate(90deg);
}

/* ==========================================================================
   MODAL 1: PRODUCT DETAIL & SOI VÂN NGỌC
   ========================================================================== */
.modal-detail {
  max-width: 980px;
  padding: 24px;
}

.detail-body {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 28px;
}

/* Media Column */
.detail-media-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.detail-viewer {
  position: relative;
  background-color: #0E1714;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.loupe-hint {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: rgba(0, 0, 0, 0.65);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  z-index: 3;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.sunlight-toggle-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: rgba(255, 255, 255, 0.85);
  color: #333333;
  border: 1px solid var(--color-gold);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  z-index: 3;
  backdrop-filter: blur(4px);
  transition: all var(--transition-fast);
}

.sunlight-toggle-btn.active {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: #FFFFFF;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.6);
}

.detail-main-img-wrap {
  position: relative;
  width: 100%;
  padding-top: 100%;
  overflow: hidden;
  cursor: crosshair;
}

.detail-main-img-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: #000000;
  transition: filter 0.3s ease;
}

/* Ánh nắng tự nhiên filter */
.detail-main-img-wrap.sunlight-mode img {
  filter: contrast(1.12) saturate(1.18) brightness(1.05) sepia(0.08);
}

/* Loupe / Magnifier */
.img-loupe {
  position: absolute;
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  cursor: crosshair;
  width: 140px;
  height: 140px;
  box-shadow: 0 0 16px rgba(0,0,0,0.4), inset 0 0 10px rgba(0,0,0,0.3);
  display: none;
  pointer-events: none;
  background-repeat: no-repeat;
  z-index: 5;
}

/* Video Wrapper */
.detail-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 100%;
  background-color: #000000;
}

.detail-video-wrap video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Thumbs */
.detail-thumbs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.detail-thumb-item {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-ivory-border);
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition-fast);
}

.detail-thumb-item.active {
  border-color: var(--color-jade-deep);
  box-shadow: 0 0 0 2px var(--color-gold);
}

.detail-thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-video-placeholder {
  background: #143D30;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #DFC286;
  font-size: 1.1rem;
}

.thumb-video-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 9px;
  padding: 1px 3px;
  border-radius: 2px;
}

.natural-lighting-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.4;
}

/* Detail Info Column */
.detail-info-col {
  display: flex;
  flex-direction: column;
}

.detail-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.code-badge {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
}

.status-badge {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
}

.cert-badge {
  background-color: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.detail-title {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-jade-deep);
  line-height: 1.35;
  margin-bottom: 8px;
}

.detail-price-box {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.detail-price {
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-jade-deep);
  line-height: 1.25;
}

.detail-one-only-tag {
  font-size: 13px;
  color: #8C6212;
  font-weight: 600;
}

/* Key Highlight Boxes */
.detail-specs-highlight {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background-color: var(--color-ivory-subtle);
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 16px;
  text-align: center;
}

.spec-highlight-box {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.spec-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.spec-value {
  font-size: 16px;
  color: var(--color-text-main);
}

.spec-value.highlight-ni {
  color: var(--color-jade-deep);
  font-weight: 700;
  font-size: 18px;
}

.spec-sub {
  font-size: 12px;
  color: #8C6212;
}

/* Specs Table */
.detail-specs-table {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
  font-size: 0.85rem;
}

.table-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px solid var(--color-ivory-subtle);
}

.row-label {
  color: var(--color-text-muted);
}

.row-val {
  font-weight: 600;
  color: var(--color-text-main);
  text-align: right;
}

.font-mono {
  font-family: monospace;
}

.detail-description {
  margin-bottom: 20px;
}

.desc-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-jade-deep);
  margin-bottom: 4px;
}

.desc-body {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.detail-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

/* ==========================================================================
   MODAL 2: RESERVE FORM (Giữ Vòng Trên Web 5 Giây)
   ========================================================================== */
.modal-reserve {
  max-width: 480px;
  padding: 24px;
}

.reserve-header {
  text-align: center;
  margin-bottom: 18px;
}

.reserve-emblem {
  margin-bottom: 6px;
}

.reserve-title {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 6px;
  line-height: 1.3;
}

.reserve-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.reserve-product-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--color-ivory-subtle);
  border: 1px solid var(--color-ivory-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  margin-bottom: 18px;
}

.summary-thumb {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.summary-info {
  min-width: 0;
}

.summary-code {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-jade-deep);
}

.summary-name {
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.summary-meta {
  font-size: 13px;
  color: var(--color-text-muted);
}

.summary-price {
  color: var(--color-jade-deep);
  font-weight: 700;
}

/* Form controls */
.reserve-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
}

.required {
  color: #DC2626;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-ivory-border);
  background-color: var(--color-ivory);
  font-size: 16px;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-gold);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

.field-error {
  font-size: 12px;
  color: #DC2626;
  min-height: 14px;
}

.field-help {
  font-size: 12px;
  color: #4A5852;
  line-height: 1.45;
}

.btn-submit-reserve {
  margin-top: 6px;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  min-height: 44px;
}

/* Success View */
.reserve-success-box {
  text-align: center;
  padding: 16px 8px;
}

.success-icon-wrap {
  margin-bottom: 12px;
}

.success-title {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 8px;
}

.success-message {
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 14px;
  color: var(--color-text-main);
}

.text-gold {
  color: #8C6212;
}

.success-guidance {
  background-color: var(--color-jade-soft);
  border: 1px solid rgba(20, 61, 48, 0.15);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 0.85rem;
  color: var(--color-jade-deep);
  line-height: 1.5;
  margin-bottom: 20px;
}

.success-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   MODAL 3: MEASURE GUIDE & CALCULATOR (CHUẨN 3 ẢNH HƯỚNG DẪN)
   ========================================================================== */
.modal-measure {
  max-width: 680px;
  padding: 20px;
}

.measure-header {
  text-align: center;
  margin-bottom: 12px;
}

.measure-kicker {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  color: #8C6212;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.measure-title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 4px;
}

.measure-desc {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.measure-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  background-color: var(--color-ivory-subtle);
  padding: 5px;
  border-radius: 12px;
  border: 1px solid var(--color-ivory-border);
  margin-bottom: 14px;
}

.m-tab {
  padding: 8px 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: 8px;
  text-align: center;
  line-height: 1.25;
  transition: all var(--transition-fast);
}

.m-tab.active {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(20, 61, 48, 0.2);
}

/* Calculator Box */
.interactive-calculator {
  background-color: var(--color-ivory-subtle);
  border: 1.5px solid var(--color-gold-border);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 14px;
}

.calc-badge-title {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-jade-deep);
  background: rgba(20, 61, 48, 0.08);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.calc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 4px;
}

.calc-row label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-jade-deep);
}

.calc-val-wrap {
  font-size: 15px;
  font-weight: 700;
  color: #8C6212;
  background: #FFFDF9;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-gold-border);
}

.calc-sub-info {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.custom-slider {
  width: 100%;
  accent-color: var(--color-jade-deep);
  margin-bottom: 12px;
  height: 6px;
  cursor: pointer;
}

.calc-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.calc-opt-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.calc-opt-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.calc-seg-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: #FFFFFF;
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--color-ivory-border);
}

.calc-seg-btn {
  padding: 6px 4px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  color: var(--color-text-muted);
  transition: all 0.15s ease;
}

.calc-seg-btn.active {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
}

.calc-result-box {
  background-color: var(--color-ivory-card);
  border: 1px solid var(--color-gold-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}

.result-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 2px;
  letter-spacing: 0.02em;
}

.result-ni {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 4px;
}

.result-tip {
  font-size: 12.5px;
  color: #8C6212;
  margin-bottom: 10px;
}

.btn-filter-by-ni {
  display: block !important;
  width: 100%;
  text-align: center;
  line-height: 1.4;
  padding: 11px 14px;
}

/* Cards 2 bước đo tay & Phân biệt tay cứng - tay mềm */
.measure-steps-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.m-step-card {
  background: #FFFFFF;
  border: 1px solid var(--color-ivory-border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.45;
}

.m-step-badge {
  display: inline-block;
  background: var(--color-jade-deep);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 6px;
}

.hand-type-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.hand-box {
  background: var(--color-ivory-subtle);
  border: 1px solid var(--color-ivory-border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 12.5px;
}

.hand-box strong {
  display: block;
  color: var(--color-jade-deep);
  margin-bottom: 4px;
  font-size: 13px;
}

.hand-box ul {
  padding-left: 16px;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.guide-image-showcase {
  margin-top: 12px;
  background: #FFFFFF;
  border: 1px solid var(--color-ivory-border);
  border-radius: 12px;
  padding: 10px;
}

.guide-img-caption {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-jade-deep);
  margin-bottom: 8px;
}

.guide-full-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
  border: 1px solid rgba(20, 61, 48, 0.1);
}

.guide-lead-note {
  font-size: 13.5px;
  color: var(--color-text-main);
  line-height: 1.45;
  margin-bottom: 8px;
}

.table-scroll-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Table in Tab 2 & Tab 3 */
.ni-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 4px;
}

.ni-table th, .ni-table td {
  padding: 7px 6px;
  border: 1px solid var(--color-ivory-border);
  text-align: center;
}

.ni-table th {
  background-color: var(--color-jade-deep);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 12px;
}

.ni-table-full tbody tr {
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.ni-table-full tbody tr:hover {
  background-color: #FBF6EB;
}

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background-color: #111A16;
  color: #FFFFFF;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.88rem;
  box-shadow: 0 10px 24px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 380px;
  pointer-events: auto;
  animation: slideToastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideToastIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast.toast-fading {
  animation: slideToastOut 0.3s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideToastOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(16px); }
}

.toast-icon {
  font-size: 1.2rem;
  color: var(--color-gold);
}

.footer-zalo-notice {
  color: #DFC286;
  font-size: 0.82rem;
  line-height: 1.4;
  padding-top: 4px;
}

.detail-zalo-notice {
  background: rgba(197, 160, 89, 0.15);
  border: 1px dashed #C5A059;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.8rem;
  color: #143D30;
  margin-bottom: 8px;
  text-align: center;
}

body.modal-open {
  overflow: hidden !important;
  touch-action: none;
}

/* ==========================================================================
   RESPONSIVE DESIGN (Tối ưu Zalo Webview trên iPhone & Android)
   ========================================================================== */
@media (max-width: 900px) {
  .detail-body {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 0;
  }
  /* TUYỆT ĐỐI BỎ STICKY TRÊN MOBILE ĐỂ KHÔNG CHE MÀN HÌNH */
  .filter-section {
    position: relative !important;
    top: auto !important;
    padding: 8px 0 12px;
  }
  .header-actions .btn-text {
    display: none;
  }
  .header-actions .btn-util {
    padding: 8px;
    border-radius: 50%;
  }
  .hero-heading {
    font-size: 22px;
    line-height: 1.3;
  }
  .hero-desc {
    font-size: 14px;
    margin-bottom: 8px;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .product-card {
    border-radius: var(--radius-md);
  }
  .card-body {
    padding: 10px 8px 12px;
  }
  .card-title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.45;
    margin-bottom: 6px;
    min-height: 41px;
  }
  .card-spec-strip {
    padding: 4px 6px;
    margin-bottom: 6px;
    flex-wrap: wrap;
    row-gap: 4px;
    column-gap: 5px;
    height: auto;
  }
  .spec-ni-value {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .card-feature-pill {
    font-size: 12px;
    padding: 2px 7px;
    white-space: nowrap;
    margin-left: auto;
  }
  .spec-item-ni .ni-label {
    font-size: 12px;
  }
  .spec-item-ni .ni-value {
    font-size: 14px;
    font-weight: 600;
  }
  .spec-item-dim {
    font-size: 12px;
    display: none;
  }
  .card-material-style {
    font-size: 12px;
    margin-bottom: 6px;
    display: block;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .card-material-style strong {
    font-weight: 500;
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .card-price-row {
    margin-bottom: 8px;
    padding-top: 2px;
  }
  .card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-jade-deep);
  }
  .card-edition {
    font-size: 12px;
    color: #8C6212;
  }
  .btn-card-detail {
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    padding: 10px 8px;
  }
  .btn-card-reserve {
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    padding: 10px 6px;
  }
  .btn-card-zalo {
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    padding: 10px 6px;
  }
  .btn-card-ask-similar {
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    padding: 10px 8px;
  }
  .modal-container {
    max-height: 94vh;
    padding: 16px;
  }
  .palm-guide-grid {
    grid-template-columns: 1fr;
  }
  .toast-container {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
  .toast {
    max-width: 100%;
    padding: 10px 14px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .top-announcement-bar {
    font-size: 12px;
    padding: 4px 0;
  }
  .announcement-text {
    display: none;
  }
  .header-inner {
    padding-top: 6px;
    padding-bottom: 6px;
  }
  .brand-emblem {
    width: 34px;
    height: 34px;
  }
  .shop-name {
    font-size: 20px;
    font-weight: 700;
  }
  .shop-subtitle {
    font-size: 12px;
    color: #8C6212;
  }
  .hero-section {
    padding: 6px 0 8px;
  }
  .hero-cover-media {
    height: 155px;
  }
  .hero-cover-floating-badge {
    font-size: 10.5px;
    padding: 3px 9px;
    top: 8px;
    left: 8px;
  }
  .hero-content {
    margin-top: -14px;
    padding: 0 10px 12px;
  }
  .hero-desc {
    display: none;
  }
  .hero-heading {
    font-size: 18px;
    margin-bottom: 4px;
  }
  .inventory-status-bar {
    gap: 4px;
    margin-top: 4px;
    margin-bottom: 10px;
  }
  .stat-pill {
    padding: 3px 7px;
    font-size: 11px;
    gap: 4px;
  }
  .stat-circle {
    width: 6px;
    height: 6px;
  }
  .btn-hero-measure-cta {
    padding: 9px 11px;
    gap: 8px;
  }
  .cta-measure-icon {
    width: 36px;
    height: 36px;
  }
  .cta-measure-title {
    font-size: 13.5px;
  }
  .cta-measure-sub {
    font-size: 11px;
  }
  .calc-options-grid,
  .measure-steps-cards,
  .hand-type-comparison {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .sticky-search-bar {
    padding: 6px 0;
  }
  .sticky-search-bar .filter-row-search {
    margin-bottom: 0;
  }
  .filter-section {
    padding: 6px 0 8px;
  }
  .filter-card {
    padding: 8px 10px;
  }
  .filter-row-tabs {
    margin-bottom: 6px;
  }
  .filter-row-ni {
    padding-top: 6px;
    padding-bottom: 6px;
    margin-bottom: 6px;
  }
  .precise-hint {
    display: none;
  }
  .products-section {
    padding: 6px 0 36px;
  }
  .card-edition {
    display: none;
  }
  .card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-jade-deep);
    white-space: nowrap;
  }
  .spec-ni-value {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
  }
  .card-feature-pill {
    font-size: 12px;
    padding: 2px 6px;
    white-space: nowrap;
  }
}