/* ==========================================================
   LUME CASA — Luxury Furniture Sales Funnel Design System
   ========================================================== */

:root {
  --color-bg: #F9F8F5;
  --color-bg-alt: #F2EFEB;
  --color-card-bg: #FFFFFF;
  --color-dark: #141312;
  --color-dark-surface: #1E1D1B;
  --color-gold: #C5A059;
  --color-gold-light: #E6D2B1;
  --color-gold-dark: #9A7836;
  --color-text-main: #232220;
  --color-text-muted: #736F6A;
  --color-text-light: #F4F1EB;
  --color-border: #E5E0D8;
  --color-border-dark: #33312E;
  --color-accent-green: #2E7D32;

  --font-serif: 'Cinzel', 'Noto Serif Thai', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', 'Noto Sans Thai', -apple-system, BlinkMacSystemFont, sans-serif;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(20, 19, 18, 0.08);
  --shadow-lg: 0 16px 40px rgba(20, 19, 18, 0.12);
  --shadow-gold: 0 8px 25px rgba(197, 160, 89, 0.25);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }

/* Typography Helpers */
.sub-title {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* Announcement Bar */
.announcement-bar {
  background-color: var(--color-dark);
  color: var(--color-gold-light);
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-dark);
}

.announcement-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.announcement-link {
  color: var(--color-gold);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.announcement-link:hover {
  color: #FFFFFF;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(249, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
}

.brand-sub {
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
  font-weight: 700;
  text-transform: uppercase;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-dark);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-main);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-gold);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn-gold {
  background: linear-gradient(135deg, #D4B26F 0%, #C5A059 50%, #B08A42 100%);
  color: #121110;
  box-shadow: var(--shadow-sm);
  font-weight: 700;
}

.btn-gold:hover {
  background: linear-gradient(135deg, #DEC083 0%, #D4B26F 50%, #C5A059 100%);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

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

.btn-outline-gold:hover {
  background-color: var(--color-gold);
  color: #121110;
}

.btn-glass {
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-glass:hover {
  background-color: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Hero Section */
.hero-section {
  position: relative;
  background: radial-gradient(circle at center 20%, #2A2724 0%, #141312 100%);
  color: var(--color-text-light);
  padding: 5.5rem 0 4.5rem;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
}

.hero-tag {
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.25rem;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.hero-title span {
  background: linear-gradient(135deg, #F8EDD9 0%, #DFBF95 50%, #C5A059 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1875rem;
  line-height: 1.7;
  color: rgba(244, 241, 235, 0.85);
  max-width: 740px;
  margin: 0 auto 2.5rem;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: rgba(255, 255, 255, 0.04);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.badge-icon {
  font-size: 1.5rem;
}

.badge-text strong {
  display: block;
  font-size: 0.8125rem;
  color: #FFFFFF;
}

.badge-text span {
  font-size: 0.75rem;
  color: var(--color-gold-light);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-header {
  margin-bottom: 3.5rem;
}

/* Craftsmanship Features */
.craftsmanship-section {
  background-color: var(--color-bg-alt);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--color-card-bg);
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
}

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

.feature-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gold-light);
  line-height: 1;
  margin-bottom: 1rem;
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Catalog Controls */
.catalog-controls {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background-color: #FFFFFF;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

@media (min-width: 992px) {
  .catalog-controls {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 380px;
}

.search-box svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.search-box input {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  outline: none;
  font-size: 0.9375rem;
}

.search-box input:focus {
  border-color: var(--color-gold);
  background-color: #FFFFFF;
}

.btn-clear {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
}

.filter-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab-btn {
  padding: 0.625rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  background-color: var(--color-dark);
  color: #FFFFFF;
  border-color: var(--color-dark);
}

.sort-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.custom-select {
  padding: 0.625rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  outline: none;
  cursor: pointer;
}

.catalog-status {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 2rem;
}

.product-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-gold);
}

.card-media {
  position: relative;
  background-color: #F6F4EE;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  cursor: pointer;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .card-media img {
  transform: scale(1.04);
}

.card-badge-code {
  position: absolute;
  top: 0.875rem;
  left: 0.875rem;
  background-color: rgba(20, 19, 18, 0.85);
  color: var(--color-gold-light);
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-name-en {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.card-name-th {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.875rem;
}

.card-specs {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  background-color: var(--color-bg);
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  margin-bottom: 1.25rem;
}

.spec-line strong {
  color: var(--color-dark);
}

.card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.card-price-block {
  display: flex;
  flex-direction: column;
}

.price-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.price-value {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-dark);
}

.card-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-card-view {
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  background-color: var(--color-dark);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.btn-card-view:hover {
  background-color: var(--color-gold);
  color: #121110;
}

.btn-card-order {
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  background-color: var(--color-gold);
  color: #121110;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.btn-card-order:hover {
  background-color: var(--color-gold-dark);
  color: #FFFFFF;
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.step-card {
  background-color: #FFFFFF;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  position: relative;
}

.step-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold-dark);
  background-color: var(--color-bg-alt);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.step-icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* FAQ Accordion */
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.25rem;
}

.faq-answer p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Final CTA */
.cta-section {
  background: linear-gradient(135deg, #1A1918 0%, #100F0E 100%);
  color: #FFFFFF;
  padding: 5rem 0;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--color-gold-light);
  margin-bottom: 2rem;
}

.cta-btn-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background-color: #0E0D0C;
  color: var(--color-text-muted);
  padding: 3.5rem 0 2rem;
  border-top: 1px solid var(--color-border-dark);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand .brand-name {
  color: #FFFFFF;
}

.footer-tagline {
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.footer-rights {
  font-size: 0.75rem;
  margin-top: 1.5rem;
}

.footer-links h4 {
  color: #FFFFFF;
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
}

.footer-links p {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

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

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(14, 13, 12, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.25s ease;
}

.modal-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-dark);
  z-index: 10;
}

.modal-body {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .modal-body {
    grid-template-columns: 1fr 1fr;
  }
}

.modal-img-viewer {
  background-color: #F8F6F0;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.modal-info {
  display: flex;
  flex-direction: column;
}

.modal-code-badge {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  color: var(--color-gold-dark);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.modal-sub {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.modal-price-box {
  background-color: var(--color-bg-alt);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.modal-price {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-dark);
}

.modal-specs-table {
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.modal-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: auto;
}

/* Drawer Overlay (Checkout) */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(14, 13, 12, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  justify-content: flex-end;
  animation: fadeIn 0.25s ease;
}

.drawer-panel {
  background-color: #FFFFFF;
  width: 100%;
  max-width: 540px;
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.drawer-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background-color: #FFFFFF;
  z-index: 10;
}

.drawer-tag {
  font-family: var(--font-serif);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--color-gold-dark);
  font-weight: 700;
}

.drawer-title {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  color: var(--color-dark);
}

.drawer-close {
  background: none;
  border: none;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--color-dark);
}

.drawer-content {
  padding: 2rem;
  flex: 1;
}

.selected-product-box {
  display: flex;
  gap: 1.25rem;
  background-color: var(--color-bg);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 1.75rem;
}

.selected-product-box img {
  width: 80px;
  height: 105px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.order-product-code {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold-dark);
}

.order-product-name {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--color-dark);
}

.order-product-dim {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.order-product-price {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-top: 0.25rem;
}

.form-section {
  margin-bottom: 1.75rem;
}

.section-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.pay-type-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.pay-type-option {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pay-type-option input {
  display: none;
}

.pay-type-option.active {
  border-color: var(--color-gold);
  background-color: #FDFBF7;
}

.option-content strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-dark);
}

.option-amount {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-gold-dark);
  display: block;
  margin: 0.25rem 0;
}

.option-content small {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-dark);
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  outline: none;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--color-gold);
  background-color: #FFFFFF;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.payment-method-selector {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.method-option {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.method-option input {
  display: none;
}

.method-option.active {
  border-color: var(--color-gold);
  background-color: #FDFBF7;
}

.method-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
}

.method-card span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: block;
  margin-left: 1.75rem;
}

.security-guarantee {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
}

/* Payment Result Box */
.payment-result-box {
  text-align: center;
  padding: 1.5rem 0;
}

.bank-card {
  background-color: #F8FBF8;
  border: 1px solid #C8E6C9;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0;
  text-align: left;
}

.bank-header {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent-green);
  margin-bottom: 0.75rem;
}

.bank-detail-line {
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.floating-chat-bar {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
}

.floating-chat-btn {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background: linear-gradient(135deg, #1877F2 0%, #0D65D9 100%);
  color: #FFFFFF;
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9375rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
}

.floating-chat-btn:hover {
  transform: scale(1.05);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.loading-spinner {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 0;
  color: var(--color-text-muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .nav-menu {
    display: none;
  }
  .section {
    padding: 3.5rem 0;
  }
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
  }
}