/* ==========================================================================
   Design System & Base Styles - Rượu Bưởi Tân Triều ANNA
   ========================================================================== */

:root {
  --primary: #d97706;
  --primary-hover: #b45309;
  --primary-light: #fef3c7;
  --secondary: #4a1d1f;
  --secondary-dark: #2c1810;
  --accent-gold: #f59e0b;
  --accent-green: #15803d;
  --bg-cream: #fffdfa;
  --bg-warm: #fbf7ef;
  --bg-dark: #1a120c;
  --text-main: #27272a;
  --text-muted: #52525b;
  --text-light: #f4f4f5;
  --border-color: #e4e4e7;
  --border-warm: #ebd5c1;
  --shadow-sm: 0 2px 8px rgba(44, 24, 16, 0.08);
  --shadow-md: 0 8px 24px rgba(44, 24, 16, 0.12);
  --shadow-lg: 0 16px 36px rgba(44, 24, 16, 0.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-cream);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utility Badges */
.badge-gold {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

.badge-green {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #dcfce7;
  color: var(--accent-green);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid #bbf7d0;
}

/* Top Notification Bar */
.top-bar {
  background: linear-gradient(90deg, #2c1810, #4a1d1f, #2c1810);
  color: #fef3c7;
  padding: 8px 0;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(245, 158, 11, 0.3);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 15px;
  font-weight: 500;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-right a {
  color: #fef3c7;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.top-bar-right a:hover {
  color: var(--accent-gold);
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 253, 250, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-warm);
  box-shadow: var(--shadow-sm);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 50%;
  background: #ffffff;
  padding: 3px;
  border: 2px solid var(--primary);
  box-shadow: 0 4px 12px rgba(120, 53, 15, 0.25);
  transition: transform 0.3s ease;
}

.logo-brand:hover .logo-img {
  transform: scale(1.06);
}

.logo-text h1 {
  font-size: 1.25rem;
  color: var(--secondary-dark);
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-weight: 600;
  color: var(--text-main);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--primary);
}

.btn-cta-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  animation: pulse-glow 2s infinite;
}

.btn-cta-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.5);
  color: #fff;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(217, 119, 6, 0); }
  100% { box-shadow: 0 0 0 0 rgba(217, 119, 6, 0); }
}

/* Hero Section */
.hero-section {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-warm) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-title {
  font-size: 2.75rem;
  color: var(--secondary-dark);
  line-height: 1.18;
}

.hero-title span {
  color: var(--primary);
  display: block;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--secondary);
  font-weight: 600;
  border-left: 4px solid var(--primary);
  padding-left: 14px;
}

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

.hero-offer-box {
  background: linear-gradient(135deg, #fff, #fef3c7);
  border: 2px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.offer-tag {
  position: absolute;
  top: -14px;
  left: 20px;
  background: #dc2626;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(220, 38, 38, 0.3);
}

.offer-main-title {
  font-size: 1.5rem;
  color: var(--secondary-dark);
  margin-top: 6px;
}

.offer-gift {
  font-size: 1.35rem;
  color: #dc2626;
  font-weight: 800;
  margin: 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.offer-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 10px;
}

.price-current {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-hover);
}

.price-unit {
  font-size: 1rem;
  color: var(--text-muted);
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn-primary-large {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
  padding: 16px 36px;
  border-radius: var(--radius-full);
  font-size: 1.15rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary-large:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(220, 38, 38, 0.5);
  color: #fff;
}

.btn-secondary-large {
  background: #fff;
  color: var(--accent-green);
  border: 2px solid var(--accent-green);
  padding: 16px 28px;
  border-radius: var(--radius-full);
  font-size: 1.05rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary-large:hover {
  background: #f0fdf4;
  transform: translateY(-2px);
}

.hero-media-wrapper {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid #fff;
  background: radial-gradient(circle at center, #4a1d1f 0%, #1a120c 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 25px 20px;
  min-height: 480px;
}

.hero-image-card img {
  width: auto;
  max-width: 100%;
  max-height: 460px;
  object-fit: contain;
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.5));
  transition: transform 0.6s ease;
}

.hero-image-card:hover img {
  transform: scale(1.04);
}

.hero-badge-float {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(44, 24, 16, 0.88);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(245, 158, 11, 0.4);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge-float .icon {
  font-size: 1.8rem;
  color: var(--accent-gold);
}

/* Flash Sale Timer Section */
.flash-sale-bar {
  background: linear-gradient(135deg, #78350f, #2c1810);
  color: #fff;
  padding: 24px 0;
  box-shadow: var(--shadow-md);
}

.flash-sale-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.flash-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.flash-title h3 {
  font-size: 1.4rem;
  color: var(--accent-gold);
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 10px;
}

.timer-unit {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  text-align: center;
  min-width: 60px;
}

.timer-unit .num {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.timer-unit .lbl {
  font-size: 0.7rem;
  color: #fef3c7;
  text-transform: uppercase;
  margin-top: 4px;
}

.timer-sep {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.stock-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 220px;
}

.stock-text {
  font-size: 0.85rem;
  color: #fef3c7;
  display: flex;
  justify-content: space-between;
}

.progress-bar-bg {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  width: 85%;
  height: 100%;
  background: linear-gradient(90deg, #f59e0b, #ef4444);
  border-radius: var(--radius-full);
  animation: pulse-bar 2s infinite alternate;
}

@keyframes pulse-bar {
  0% { opacity: 0.8; }
  100% { opacity: 1; }
}

/* Feature Sections */
.section-padding {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.section-sub-title {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.875rem;
  margin-bottom: 8px;
  display: block;
}

.section-main-title {
  font-size: 2.25rem;
  color: var(--secondary-dark);
  line-height: 1.25;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  border: 1px solid var(--border-warm);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent-gold));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  color: var(--primary-hover);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.35rem;
  color: var(--secondary-dark);
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Feature Showcase Split Section */
.showcase-section {
  background: var(--bg-warm);
  border-top: 1px solid var(--border-warm);
  border-bottom: 1px solid var(--border-warm);
}

.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 60px;
}

.showcase-row:last-child {
  margin-bottom: 0;
}

.showcase-row.reverse {
  direction: rtl;
}

.showcase-row.reverse > * {
  direction: ltr;
}

.showcase-img-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 4px solid #fff;
  position: relative;
  background: radial-gradient(circle at center, #2c1810 0%, #1a120c 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  min-height: 380px;
}

.showcase-img-box img, .showcase-img-box video {
  width: auto;
  max-width: 100%;
  max-height: 380px;
  object-fit: contain;
  filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.45));
}

.showcase-content h3 {
  font-size: 1.85rem;
  color: var(--secondary-dark);
  margin-bottom: 16px;
}

.showcase-content p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bullet-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 600;
  color: var(--secondary-dark);
}

.bullet-list li i {
  color: var(--accent-green);
  font-size: 1.1rem;
  margin-top: 3px;
}

/* Gallery Section */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 260px;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  border: 2px solid #fff;
  background: radial-gradient(circle at center, #2c1810 0%, #1a120c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.gallery-item img, .gallery-item video {
  width: auto;
  max-width: 100%;
  max-height: 240px;
  object-fit: contain;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.4));
  transition: transform 0.4s ease;
}

.gallery-item:hover img, .gallery-item:hover video {
  transform: scale(1.06);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(44, 24, 16, 0.4);
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.8rem;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-item.video-item::after {
  content: '▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  background: rgba(217, 119, 6, 0.9);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  pointer-events: none;
}

/* Target Audience / Gift Cards */
.gift-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.gift-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 24px 18px;
  text-align: center;
  border: 1px solid var(--border-warm);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.gift-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
}

.gift-card h4 {
  font-size: 1.15rem;
  color: var(--secondary-dark);
  margin-bottom: 8px;
}

.gift-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Product Specifications Box */
.spec-box {
  background: linear-gradient(135deg, #2c1810, #4a1d1f);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.spec-content h3 {
  font-size: 2rem;
  color: var(--accent-gold);
  margin-bottom: 10px;
}

.spec-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0;
}

.spec-item {
  background: rgba(255, 255, 255, 0.08);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.spec-label {
  font-size: 0.8rem;
  color: #fef3c7;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.spec-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

/* Order Section & Form */
.order-section {
  background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-cream) 100%);
  position: relative;
}

.order-wrapper {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--border-warm);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
}

.order-info-side {
  background: linear-gradient(135deg, #4a1d1f, #2c1810);
  color: #fff;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.order-info-side h3 {
  font-size: 2rem;
  color: var(--accent-gold);
  margin-bottom: 15px;
}

.combo-badge-highlight {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #fca5a5;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.order-benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 30px;
}

.order-benefits li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
}

.order-benefits li i {
  color: var(--accent-gold);
  font-size: 1.2rem;
}

.contact-direct-box {
  background: rgba(255, 255, 255, 0.08);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.contact-direct-box p {
  font-size: 0.9rem;
  color: #fef3c7;
  margin-bottom: 10px;
}

.contact-numbers {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.phone-link {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Order Form Side */
.order-form-side {
  padding: 40px;
}

.form-title {
  font-size: 1.6rem;
  color: var(--secondary-dark);
  margin-bottom: 6px;
}

.form-sub {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.package-selector {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.package-option {
  position: relative;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.package-option:hover {
  border-color: var(--primary);
}

.package-option.active {
  border-color: var(--primary);
  background: var(--primary-light);
}

.package-option input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.package-details {
  display: flex;
  flex-direction: column;
}

.package-name {
  font-weight: 800;
  color: var(--secondary-dark);
  font-size: 1.05rem;
}

.package-tag {
  font-size: 0.8rem;
  color: #dc2626;
  font-weight: 700;
}

.package-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-hover);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--secondary-dark);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

.order-total-summary {
  background: var(--bg-warm);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.total-label {
  font-weight: 700;
  color: var(--secondary-dark);
}

.total-amount {
  font-size: 1.4rem;
  font-weight: 800;
  color: #dc2626;
}

.btn-submit-order {
  width: 100%;
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
  padding: 16px;
  border-radius: var(--radius-full);
  font-size: 1.2rem;
  font-weight: 800;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-submit-order:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(220, 38, 38, 0.5);
}

/* Floating Action Bar & Quick Contact */
.floating-actions {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: justify-center;
  color: #fff;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
  text-decoration: none;
  justify-content: center;
}

.float-btn:hover {
  transform: scale(1.1);
  color: #fff;
}

.float-zalo {
  background: #0068ff;
}

.float-call {
  background: #16a34a;
  animation: pulse-phone 1.8s infinite;
}

@keyframes pulse-phone {
  0% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.6); }
  70% { box-shadow: 0 0 0 14px rgba(22, 163, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

.floating-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(44, 24, 16, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--accent-gold);
  padding: 10px 16px;
  z-index: 98;
  display: none;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.bottom-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 600px;
  margin: 0 auto;
  gap: 15px;
}

.bottom-offer-info {
  color: #fff;
  font-size: 0.85rem;
}

.bottom-offer-info strong {
  color: var(--accent-gold);
  display: block;
  font-size: 1rem;
}

.btn-bottom-buy {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 800;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 80px;
  left: 20px;
  z-index: 101;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast-msg {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-warm);
  border-left: 4px solid var(--accent-green);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateX(-120%);
  transition: transform 0.4s ease;
  max-width: 320px;
}

.toast-msg.show {
  transform: translateX(0);
}

.toast-avatar {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  color: var(--primary-hover);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.toast-body {
  font-size: 0.85rem;
}

.toast-body strong {
  display: block;
  color: var(--secondary-dark);
}

.toast-body span {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* Footer */
.site-footer {
  background: var(--secondary-dark);
  color: #d4d4d8;
  padding: 60px 0 30px;
  border-top: 2px solid var(--primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.95rem;
  color: #a1a1aa;
  margin-bottom: 16px;
}

.footer-title {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--primary);
}

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

.footer-links a {
  color: #a1a1aa;
  font-size: 0.9rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #71717a;
}

/* Modal Lightbox */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: #fff;
  border-radius: var(--radius-lg);
  max-width: 550px;
  width: 100%;
  padding: 30px;
  position: relative;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.success-icon {
  width: 70px;
  height: 70px;
  background: #dcfce7;
  color: var(--accent-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  margin: 0 auto 20px;
}

/* Lightbox Content Container */
.lightbox-content-box {
  max-width: 900px;
  max-height: 90vh;
  position: relative;
}

.lightbox-content-box img, .lightbox-content-box video {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

/* Media Queries / Responsive */
@media (max-width: 992px) {
  .hero-grid, .showcase-row, .spec-box, .order-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .showcase-row.reverse {
    direction: ltr;
  }

  .floating-bottom-bar {
    display: block;
  }

  body {
    padding-bottom: 60px;
  }
}

@media (max-width: 600px) {
  .top-bar .container {
    justify-content: center;
    text-align: center;
  }
  
  .top-bar-right {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .spec-list {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
}