/* ==========================================================================
   CHẢ CÁ NAM HƯƠNG - MAIN STYLESHEET
   Design System: Warm Paper, Dark Brown, Golden Brown, Fresh Green, Chili Red
   Supports: Light/Dark Mode via prefers-color-scheme & CSS Variables
   ========================================================================== */

/* 1. CSS VARIABLES & SYSTEM CONSTANTS */
:root {
  /* Color Palette (Light Mode Default - Warm Paper Theme) */
  --bg-paper: #FDFBF7;
  --bg-card: #FFFFFF;
  --bg-subtle: #F6F1E9;
  
  --text-primary: #3D2314;     /* Dark Brown */
  --text-secondary: #6B574B;   /* Muted Brown */
  --text-muted: #9E8C80;
  
  --brand-gold: #C87A28;       /* Warm Golden Brown */
  --brand-gold-hover: #B26A1F;
  --brand-green: #2D6A4F;      /* Fresh Leaf Green */
  --chili-red: #D9381E;        /* Chili Red Badge & Highlight */
  --chili-red-hover: #BF2D15;
  
  --bg-dark-section: #2C2A20;  /* Wholesale Section Dark Background */
  --text-on-dark: #F7F4EE;
  
  --border-color: #E8E2D5;
  --border-dark: #38342D;
  --focus-ring: rgba(200, 122, 40, 0.4);
  
  /* Typography */
  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(61, 35, 20, 0.04);
  --shadow-md: 0 8px 24px rgba(61, 35, 20, 0.08);
  --shadow-lg: 0 16px 36px rgba(61, 35, 20, 0.12);
  --shadow-card: 0 4px 16px rgba(61, 35, 20, 0.06);
  
  /* Spacing & Layout */
  --container-max: 1200px;
  --header-height: 80px;
  --header-height-shrunken: 64px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-normal: 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow: 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Dark Mode Overrides */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-paper: #181714;
    --bg-card: #22201C;
    --bg-subtle: #2A2722;
    
    --text-primary: #EAE4D9;
    --text-secondary: #B5A89E;
    --text-muted: #857A70;
    
    --border-color: #38342D;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.5);
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.3);
  }
}

/* 2. BASE & RESET */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-paper);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  padding-bottom: 0; /* Updated dynamically on mobile */
}

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;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus Visible Accessibility */
:focus-visible {
  outline: 3px solid var(--brand-gold);
  outline-offset: 3px;
}

/* 3. REUSABLE COMPONENTS & BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--chili-red);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(217, 56, 30, 0.3);
}

.btn-primary:hover {
  background-color: var(--chili-red-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 56, 30, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--brand-gold);
  color: var(--brand-gold);
  transform: translateY(-2px);
}

.btn-outline-light {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.section-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--brand-gold);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background-color: var(--text-primary);
  color: var(--bg-paper);
  padding: 0.9rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.95rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  pointer-events: auto;
  animation: toastIn 0.3s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.toast-out {
  animation: toastOut 0.3s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(20px); }
}

/* 4. REVEAL ANIMATIONS (SCROLL INTERSECTION) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Respect Prefers-Reduced-Motion */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* 5. KHỐI 1: HEADER DÍNH TRÊN CÙNG */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 900;
  background-color: rgba(253, 251, 247, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: height var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background-color: rgba(24, 23, 20, 0.85);
  }
}

.site-header.header-shrunken {
  height: var(--header-height-shrunken);
  border-bottom-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

.logo-highlight {
  color: var(--brand-gold);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--brand-gold);
  transition: width var(--transition-fast);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cart-btn {
  position: relative;
  padding: 0.5rem;
  color: var(--text-primary);
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

.header-phone-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.header-phone-btn:hover {
  background-color: var(--brand-gold);
  border-color: var(--brand-gold);
  color: #FFFFFF;
}

@media (max-width: 768px) {
  .header-phone-btn .phone-num {
    display: none;
  }
  .header-phone-btn {
    padding: 0.55rem;
    border-radius: 50%;
  }
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Nav Drawer */
@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .mobile-toggle {
    display: flex;
  }

  .mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .header-cta-btn {
    display: none;
  }
}

/* 6. KHỐI 2: HERO 2 CỘT */
.hero-section {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 5rem;
  background: linear-gradient(180deg, var(--bg-paper) 0%, var(--bg-subtle) 100%);
}

.hero-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: rgba(200, 122, 40, 0.12);
  color: var(--brand-gold);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--brand-gold);
  border-radius: 50%;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--brand-gold);
  position: relative;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-commitments {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-commitments li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.check-icon {
  width: 22px;
  height: 22px;
  background-color: rgba(45, 106, 79, 0.15);
  color: var(--brand-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.hero-media {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--bg-card);
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  animation: kenburns 20s infinite alternate linear;
}

@keyframes kenburns {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.hero-overlay-tag {
  position: absolute;
  top: 20px;
  left: 20px;
  background-color: rgba(217, 56, 30, 0.9);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: var(--shadow-md);
}

.hero-seal {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 130px;
  height: 130px;
  background-color: var(--brand-gold);
  color: #FFFFFF;
  border-radius: 50%;
  padding: 6px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--bg-paper);
}

.seal-inner {
  width: 100%;
  height: 100%;
  border: 2px dashed rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.seal-num {
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
}

.seal-txt {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.seal-sub {
  font-size: 0.55rem;
  opacity: 0.9;
}

@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-img {
    height: 360px;
  }

  .hero-seal {
    width: 100px;
    height: 100px;
    bottom: -10px;
    right: -10px;
  }

  .seal-num { font-size: 1rem; }
  .seal-txt { font-size: 0.55rem; }
  .seal-sub { font-size: 0.5rem; }
}

/* 7. KHỐI 3: DẢI CHỮ CHẠY NGANG (MARQUEE) */
.marquee-section {
  background-color: var(--brand-gold);
  color: #FFFFFF;
  padding: 1rem 0;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.marquee-track {
  display: flex;
  width: max-content;
}

.marquee-content {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: marquee 25s linear infinite;
  padding-right: 2rem;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

.marquee-item {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.marquee-dot {
  opacity: 0.5;
}

/* 8. KHỐI 4: LƯỚI 4 THẺ SẢN PHẨM */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

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

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--bg-subtle);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-img {
  transform: scale(1.07);
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.badge-chili { background-color: var(--chili-red); }
.badge-gold { background-color: var(--brand-gold); }
.badge-green { background-color: var(--brand-green); }

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

.product-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.product-weight {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--brand-gold);
  margin-bottom: 0.75rem;
}

.product-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-color);
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  white-space: nowrap;
}

.price-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--chili-red);
  letter-spacing: -0.3px;
}

.price-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.card-footer-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.btn-buy-zalo {
  width: 100%;
  background-color: #B3761A;
  color: #FFFFFF;
  padding: 0.72rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  box-shadow: 0 4px 12px rgba(179, 118, 26, 0.25);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-buy-zalo:hover {
  background-color: #966113;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(179, 118, 26, 0.35);
}

.btn-call-product {
  width: 100%;
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.btn-call-product:hover {
  border-color: var(--brand-gold);
  color: var(--brand-gold);
  background-color: var(--bg-subtle);
}

/* 9. KHỐI 5: DẢI 3 CON SỐ (COUNTERS) */
.stats-section {
  background-color: var(--bg-subtle);
  border-y: 1px solid var(--border-color);
  padding: 4rem 1.5rem;
}

.stats-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-card {
  padding: 1.5rem;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--brand-gold);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.stat-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .stats-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* 10. KHỐI 6: QUY TRÌNH 4 BƯỚC CÓ ẢNH */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.process-card {
  position: relative;
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.process-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--brand-gold);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 1rem;
}

.process-img-box {
  width: 100%;
  height: 160px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.process-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.process-card:hover .process-img-box img {
  transform: scale(1.06);
}

.process-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.process-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 11. KHỐI 7: VẬN CHUYỂN & BẢO QUẢN */
.shipping-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.box-heading {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

/* Vertical Timeline */
.timeline-list {
  list-style: none;
  position: relative;
  padding-left: 2rem;
}

.timeline-list::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 15px;
  width: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 0;
  width: 32px;
  height: 32px;
  background-color: var(--brand-gold);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 4px var(--bg-paper);
}

.timeline-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Storage Table */
.storage-box {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.table-responsive {
  overflow-x: auto;
}

.storage-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.storage-table th, .storage-table td {
  padding: 1rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.storage-table th {
  font-weight: 700;
  color: var(--text-primary);
  background-color: var(--bg-subtle);
}

.badge-time {
  background-color: rgba(45, 106, 79, 0.15);
  color: var(--brand-green);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.8rem;
  white-space: nowrap;
}

.storage-note {
  color: var(--chili-red);
  font-size: 0.85rem;
  font-weight: 500;
  display: block;
}

@media (max-width: 900px) {
  .shipping-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* 12. KHỐI 8: KHỐI BÁN SỈ (NỀN TỐI #2C2A20) */
.wholesale-section {
  background-color: var(--bg-dark-section);
  color: var(--text-on-dark);
  padding: 5rem 1.5rem;
}

.text-light .section-title {
  color: #FFFFFF;
}

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

.text-muted-light {
  color: rgba(247, 244, 238, 0.7);
}

.tiers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.tier-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast);
}

.tier-card:hover {
  transform: translateY(-4px);
}

.tier-popular {
  border-color: var(--brand-gold);
  background-color: rgba(200, 122, 40, 0.08);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--brand-gold);
  color: #FFFFFF;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}

.tier-name {
  font-size: 1.1rem;
  font-weight: 700;
  display: block;
}

.tier-qty {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.tier-discount {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--brand-gold);
  margin: 1.25rem 0;
}

.tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
}

/* Wholesale Form (4 Fields) */
.wholesale-form-wrapper {
  max-width: 720px;
  margin: 0 auto;
  background-color: #FFFFFF;
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

@media (prefers-color-scheme: dark) {
  .wholesale-form-wrapper {
    background-color: var(--bg-card);
  }
}

.form-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .wholesale-form-wrapper {
    padding: 1.5rem;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
}

.req {
  color: var(--chili-red);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-paper);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px var(--focus-ring);
  outline: none;
}

.form-control.is-invalid {
  border-color: var(--chili-red);
}

.error-msg {
  font-size: 0.75rem;
  color: var(--chili-red);
  display: none;
}

.form-group.has-error .error-msg {
  display: block;
}

.mt-4 { margin-top: 1.5rem; }

.wholesale-success-msg {
  text-align: center;
  padding: 2rem;
}

.success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.wholesale-success-msg h4 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-green);
  margin-bottom: 0.5rem;
}

.wholesale-success-msg p {
  color: var(--text-secondary);
}

/* 13. KHỐI 9: 3 ĐÁNH GIÁ KHÁCH */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.testimonial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.stars {
  color: #F59E0B;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.avatar {
  width: 44px;
  height: 44px;
  background-color: rgba(200, 122, 40, 0.15);
  color: var(--brand-gold);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-name {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.testimonials-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* 14. KHỐI 10: HOỎI ĐÁP ACCORDION 6 CÂU */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--brand-gold);
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: background-color var(--transition-fast);
}

.faq-trigger:hover {
  background-color: var(--bg-subtle);
}

.faq-icon {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--brand-gold);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px dashed var(--border-color);
  margin-top: 0.25rem;
  padding-top: 1rem;
}

/* 15. KHỐI 11: CTA CUỐI TRANG & FOOTER */
.final-cta-section {
  padding-bottom: 5rem;
}

.cta-card {
  background: linear-gradient(135deg, var(--chili-red) 0%, var(--brand-gold) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.1rem;
  opacity: 0.95;
  margin-bottom: 2.5rem;
}

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

.site-footer {
  background-color: #1A1915;
  color: #D4CDC5;
  padding-top: 4rem;
  padding-bottom: 2rem;
  border-top: 1px solid #2C2A20;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-logo {
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.footer-about {
  font-size: 0.9rem;
  line-height: 1.6;
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-gold);
}

.footer-heading {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.footer-info, .footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.88rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* 16. KHỐI 12: THANH DÍNH ĐÁY TRÊN ĐIỆN THOẠI (MOBILE BOTTOM BAR) */
.mobile-sticky-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 850;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.75rem;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }

  .mobile-sticky-bar.visible {
    opacity: 1;
    transform: translateY(0);
  }

  body {
    padding-bottom: 70px;
  }

  .sticky-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    font-weight: 700;
    text-align: center;
  }

  .btn-call {
    background-color: var(--bg-subtle);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
  }

  .btn-zalo {
    background-color: #0068FF;
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 104, 255, 0.3);
  }
}

/* 17. NÚT ZALO NỔI CỐ ĐỊNH (FLOATING ZALO BUTTON) */
.floating-zalo-btn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 990;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
}

.zalo-pulse {
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(0, 104, 255, 0.35);
  animation: pulseZalo 2s infinite;
  pointer-events: none;
}

@keyframes pulseZalo {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  70% {
    transform: scale(1.45);
    opacity: 0;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

.zalo-icon-box {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  box-shadow: 0 6px 20px rgba(0, 104, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.floating-zalo-btn:hover .zalo-icon-box {
  transform: scale(1.1);
}

.zalo-tooltip {
  background-color: var(--text-primary);
  color: var(--bg-paper);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0.95;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

@media (max-width: 768px) {
  .floating-zalo-btn {
    bottom: 82px;
    right: 15px;
  }
  .zalo-tooltip {
    display: none;
  }
}