/* ==========================================================================
   Simply Super Night Enzyme Landing Page Style Guide & CSS
   Theme: Starry Midnight Blue & Luxurious Gold Accent
   ========================================================================== */

/* Variables */
:root {
  --font-primary: 'Noto Sans TC', sans-serif;
  --font-accent: 'Outfit', sans-serif;

  /* HSL Colors */
  --bg-main: hsl(224, 64%, 8%);
  --bg-card: hsl(224, 45%, 13%);
  --bg-darker: hsl(224, 70%, 5%);
  --bg-input: hsl(224, 30%, 15%);
  
  --color-gold: hsl(43, 85%, 55%);
  --color-gold-hover: hsl(43, 90%, 48%);
  --color-gold-glow: rgba(242, 201, 76, 0.35);
  
  --color-red: hsl(354, 70%, 54%);
  --color-red-glow: rgba(220, 53, 69, 0.35);
  
  --color-green: #2ecc71;
  --color-text-main: hsl(210, 20%, 98%);
  --color-text-muted: hsl(210, 14%, 72%);
  --color-text-dim: hsl(210, 10%, 55%);
  
  --border-glass: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(10, 18, 36, 0.75);
  --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 6px;
}

/* Base resets & styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

body.body-lock {
  overflow: hidden;
  height: 100vh;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.max-w-md { max-width: 850px; }
.max-w-sm { max-width: 700px; }
.max-w-lg { max-width: 900px; }

.section-padding {
  padding: 80px 0;
}

.bg-darker {
  background-color: var(--bg-darker);
}

.bg-glow-blue {
  background: radial-gradient(circle at center, hsl(224, 55%, 15%) 0%, var(--bg-main) 70%);
}

.text-center { text-align: center; }
.text-gold { color: var(--color-gold) !important; }
.text-red { color: var(--color-red) !important; }
.font-outfit { font-family: var(--font-accent); }
.d-none { display: none !important; }
.mb-4 { margin-bottom: 24px !important; }
.mt-2 { margin-top: 12px !important; }
.mt-3 { margin-top: 18px !important; }
.mt-4 { margin-top: 24px !important; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Announcement Bar */
.announcement-bar {
  background: linear-gradient(90deg, #0e1a2f, #1e3a61, #0e1a2f);
  color: #fff;
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-glass);
  z-index: 1001;
  position: relative;
}

.announcement-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.countdown {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: bold;
}

.time-box {
  background-color: var(--color-gold);
  color: var(--bg-darker);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-accent);
  font-size: 0.9rem;
}

/* Header */
.main-header {
  position: sticky;
  top: 0;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
  z-index: 1000;
  padding: 14px 0;
  transition: var(--transition-smooth);
}

.main-header.scrolled {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

.logo {
  text-decoration: none;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 4px;
}

.brand-simply {
  font-family: var(--font-accent);
  font-size: 1.8rem;
  color: var(--color-text-main);
  letter-spacing: -0.5px;
}

.brand-sub {
  font-size: 1rem;
  background-color: var(--color-gold);
  color: var(--bg-main);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  margin-left: 4px;
}

.desktop-nav {
  display: flex;
  gap: 28px;
}

.desktop-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  position: relative;
  padding: 4px 0;
}

.desktop-nav a:hover {
  color: var(--color-gold);
}

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

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: #fff;
  cursor: pointer;
  padding: 5px;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 55px;
  left: 0;
  width: 100%;
  height: 0;
  background: rgba(10, 18, 36, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 999;
  overflow: hidden;
  transition: height 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid var(--border-glass);
}

.mobile-nav-overlay.open {
  height: 260px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 100%;
}

.mobile-nav-item {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 5px 20px;
  transition: var(--transition-smooth);
}

.mobile-nav-item:hover {
  color: var(--color-gold);
}

.mobile-cta-nav {
  background: var(--color-gold);
  color: var(--bg-main);
  font-weight: 700;
  padding: 10px 30px;
  border-radius: 30px;
}

/* Mobile Sticky Tabs */
.mobile-sticky-tabs {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10, 18, 36, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-glass);
  z-index: 998;
  display: none;
  box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.4);
}

.tabs-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 10px 0;
}

.tab-item {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.tab-item:hover {
  color: var(--color-gold);
}

.tab-item.buy-tab {
  background-color: var(--color-gold);
  color: var(--bg-main) !important;
  padding: 6px 14px;
  border-radius: 30px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-md {
  padding: 12px 24px;
  font-size: 1rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-gold {
  background-color: var(--color-gold);
  color: var(--bg-main);
}

.btn-gold:hover {
  background-color: var(--color-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-gold-glow);
}

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

.btn-outline-gold:hover {
  background-color: var(--color-gold);
  color: var(--bg-main);
  transform: translateY(-2px);
}

.btn-glow {
  box-shadow: 0 4px 15px var(--color-gold-glow);
}

/* Section Header */
.section-header {
  margin-bottom: 50px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  position: relative;
  display: inline-block;
  margin-bottom: 12px;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background-color: var(--color-gold);
  margin: 10px auto 0 auto;
  border-radius: 2px;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  font-weight: 400;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 80px 0 100px 0;
  background: radial-gradient(circle at 80% 20%, #152542 0%, var(--bg-main) 60%);
  min-height: calc(85vh - 50px);
  display: flex;
  align-items: center;
}

.hero-bg-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 10% 90%, rgba(242, 201, 76, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.tag-badge {
  display: inline-block;
  background-color: rgba(242, 201, 76, 0.12);
  color: var(--color-gold);
  border: 1px solid rgba(242, 201, 76, 0.3);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title .sub-heading {
  font-size: 2.2rem;
  font-weight: 500;
}

.hero-title .highlight-num {
  font-family: var(--font-accent);
  color: var(--color-gold);
  font-size: 3rem;
  font-weight: 800;
  border-bottom: 3px double var(--color-gold);
}

.hero-description {
  color: var(--color-text-muted);
  font-size: 1.15rem;
  margin-bottom: 32px;
  max-width: 550px;
}

.hero-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.feature-badge-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 500;
}

.feature-badge-item i {
  font-size: 1.2rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.rating-stars {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rating-stars .stars {
  font-size: 1.1rem;
}

.rating-stars .review-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero-image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.img-glow-effect {
  position: absolute;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, var(--color-gold-glow) 0%, transparent 60%);
  filter: blur(40px);
  z-index: 1;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  z-index: 2;
  position: relative;
  border: 1px solid var(--border-glass);
}

/* Trust Bar */
.trust-bar {
  background-color: var(--bg-darker);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  padding: 30px 0;
}

.trust-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.trust-item i {
  font-size: 2rem;
  color: var(--color-gold);
}

.trust-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.trust-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Lifestyle Section */
.lifestyle-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 50px;
  align-items: center;
}

.lifestyle-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
  border: 1px solid var(--border-glass);
}

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

.alert-box {
  background-color: rgba(242, 201, 76, 0.08);
  border-left: 4px solid var(--color-gold);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.alert-box.bg-dark-blue {
  background-color: rgba(30, 58, 97, 0.3);
  border-left-color: var(--color-gold);
}

.alert-icon {
  font-size: 1.25rem;
}

.lifestyle-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.lifestyle-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.lifestyle-item:hover, .lifestyle-item.active {
  transform: translateX(6px);
  border-color: var(--color-gold);
  background-color: hsl(224, 45%, 17%);
}

.num-badge {
  background-color: var(--color-gold);
  color: var(--bg-darker);
  font-family: var(--font-accent);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 2px 6px var(--color-gold-glow);
}

.lifestyle-item h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

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

/* Concepts Section */
.concept-container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 50px;
  align-items: center;
}

.concept-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
  border: 1px solid var(--border-glass);
}

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

.full-width-rounded-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  display: block;
}

.concept-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.concept-pair {
  display: flex;
  align-items: center;
  gap: 16px;
}

.concept-box {
  flex: 1;
  padding: 20px;
  border-radius: var(--radius-lg);
  position: relative;
  border: 1px solid var(--border-glass);
}

.concept-box.myth {
  background-color: rgba(255, 255, 255, 0.02);
}

.concept-box.truth {
  background-color: var(--bg-card);
  border-color: rgba(242, 201, 76, 0.25);
  box-shadow: 0 4px 15px rgba(242, 201, 76, 0.05);
}

.card-tag {
  position: absolute;
  top: -10px;
  left: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: #555;
  color: #fff;
}

.card-tag.tag-gold {
  background-color: var(--color-gold);
  color: var(--bg-main);
  box-shadow: 0 2px 6px var(--color-gold-glow);
}

.concept-box h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 4px;
}

.arrow-indicator {
  color: var(--color-gold);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
}

/* Science & Ingredients Section */
.upgrade-main-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: stretch;
}

.upgrade-left-card {
  background: linear-gradient(135deg, hsl(224, 45%, 15%), var(--bg-main));
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-main);
}

.badge-accent {
  background-color: var(--color-red);
  color: #fff;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  align-self: flex-start;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px var(--color-red-glow);
}

.accent-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.highlight-large {
  font-size: 3rem;
  font-weight: 900;
  display: block;
}

.upgrade-desc {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 30px;
}

.upgrade-detail-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-main);
}

.ingredients-header {
  margin-bottom: 30px;
}

.ingredients-header h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.ingredients-header p {
  color: var(--color-text-muted);
}

.ingredients-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.ingredient-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition-smooth);
}

.ingredient-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
}

.ing-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(242, 201, 76, 0.1);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
  border: 1px solid rgba(242, 201, 76, 0.2);
}

.ingredient-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.ingredient-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.badge-features-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.badge-feature {
  background-color: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  padding: 10px 20px;
  border-radius: 50px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.badge-feature i {
  color: var(--color-gold);
}

.badge-gold {
  display: inline-block;
  background-color: var(--color-gold);
  color: var(--bg-main);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 4px 14px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px var(--color-gold-glow);
}

/* ==========================================================================
   INTERACTIVE PURCHASE CARD (aligned with Betty style)
   ========================================================================== */
.checkout-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-main);
  padding: 40px;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.checkout-wrapper::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 6px;
  background: linear-gradient(90deg, var(--color-gold), #ff8c00, var(--color-gold));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.checkout-header {
  text-align: center;
  margin-bottom: 30px;
}

.checkout-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.checkout-header p {
  color: var(--color-text-muted);
}

/* Coupon Section */
.coupon-section {
  margin: 0 auto 30px auto;
  max-width: 480px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.coupon-section label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-main);
}

.coupon-section label i {
  color: var(--color-gold);
  margin-right: 4px;
}

.coupon-input-wrap {
  display: flex;
  gap: 10px;
}

.coupon-input-wrap input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-glass);
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.coupon-input-wrap input:focus {
  border-color: var(--color-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-glow);
}

.coupon-input-wrap button {
  padding: 0 20px;
  background-color: var(--color-gold);
  color: var(--bg-main);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.coupon-input-wrap button:hover {
  background-color: var(--color-gold-hover);
}

.coupon-message {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  font-weight: 600;
}

.coupon-message.success {
  color: var(--color-green);
}

.coupon-message.error {
  color: var(--color-red);
}

.coupon-promo-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(242, 201, 76, 0.05);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-gold);
}

.hint-badge {
  background: var(--color-gold);
  color: var(--bg-main);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

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

.promo-code {
  color: var(--color-gold);
  cursor: pointer;
  text-decoration: underline;
  font-weight: 800;
}

/* Product Selection Card */
.product-selection-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow-main);
}

.product-image-display {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border-glass);
  padding: 20px;
}

.display-img-wrap {
  width: 100%;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-display-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: opacity 0.35s ease;
}

.main-display-img.switching {
  opacity: 0.15;
}

.product-image-display .card-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--color-gold);
  color: var(--bg-main);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 4px 10px var(--color-gold-glow);
}

.product-image-display .card-badge.featured-badge i.fa-crown {
  color: var(--bg-main);
  animation: bounce 2s infinite alternate;
}

.product-details-wrap {
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.dynamic-details-header {
  margin-bottom: 16px;
}

.dynamic-plan-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}

.dynamic-plan-spec {
  font-size: 0.95rem;
  color: var(--color-gold);
  font-weight: 700;
}

.dynamic-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.dynamic-features-list li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.dynamic-features-list li i {
  color: var(--color-gold);
}

/* Spec Chips Selector */
.spec-selector-section {
  margin-bottom: 16px;
  border-top: 1px dashed var(--border-glass);
  border-bottom: 1px dashed var(--border-glass);
  padding: 16px 0;
}

.spec-selector-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.spec-chips-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
}

.spec-chip {
  border-radius: 12px;
  border: 1.5px solid var(--border-glass);
  background-color: var(--bg-input);
  color: var(--color-text-muted);
  font-weight: 700;
  padding: 14px 10px;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  outline: none;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: relative;
  gap: 4px;
}

.spec-chip:hover {
  border-color: var(--color-gold);
  color: #fff;
  transform: translateY(-1.5px);
  box-shadow: 0 6px 16px rgba(242, 201, 76, 0.08);
}

.spec-chip.active {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(242, 201, 76, 0.08);
  box-shadow: 0 6px 18px rgba(242, 201, 76, 0.16);
}

.spec-chip[data-plan="popular"] .chip-crown-icon {
  color: var(--color-gold);
}

/* Quantity Selector Section */
.quantity-selector-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.quantity-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.quantity-input-wrap {
  display: inline-flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
}

.qty-btn {
  width: 36px;
  height: 34px;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.qty-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-gold);
}

#qty-input {
  width: 44px;
  height: 34px;
  border: none;
  border-left: 1px solid var(--border-glass);
  border-right: 1px solid var(--border-glass);
  background: transparent;
  color: #fff;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 800;
  font-family: var(--font-accent);
  outline: none;
}

/* Price Block Wrap */
.dynamic-price-bar-wrap {
  border-top: 1px solid var(--border-glass);
  padding: 16px 0;
  margin-top: auto;
}

.card-price-bar {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}

.card-original-price {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-accent);
}

/* Strikethrough when coupon active */
.coupon-active .card-original-price {
  text-decoration: line-through;
  color: var(--color-text-dim);
  font-size: 1.15rem;
}

.card-coupon-price {
  display: none;
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--color-gold);
  font-family: var(--font-accent);
}

.coupon-active .card-coupon-price {
  display: inline-flex;
  align-items: center;
}

.coupon-active .card-coupon-price::before {
  content: "折後價";
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--color-gold);
  color: var(--bg-main);
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 6px;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 40px;
}

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

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: #fff;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: var(--transition-smooth);
}

.faq-question:hover {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--color-gold);
}

.faq-icon {
  font-size: 0.9rem;
  transition: transform 0.3s ease;
  color: var(--color-gold);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background-color: rgba(0, 0, 0, 0.15);
}

.faq-answer p {
  padding: 20px 24px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

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

.faq-item.active .faq-answer {
  max-height: 200px;
  border-top: 1px solid var(--border-glass);
}

/* Footer */
.footer {
  background-color: var(--bg-darker);
  border-top: 1px solid var(--border-glass);
  padding: 60px 20px 110px; /* Breathing room and bottom padding for mobile sticky tabs */
  color: var(--color-text-dim);
  text-align: center;
}

.footer-logo {
  margin-bottom: 24px;
}

.footer-links {
  margin-bottom: 24px;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  margin: 0 12px;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

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

.footer-links .divider {
  color: rgba(255, 255, 255, 0.1);
  font-weight: 300;
}

.footer-info {
  max-width: 650px;
  margin: 0 auto 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-info .info-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-info .info-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-info .info-item strong {
  color: var(--color-gold);
  font-weight: 700;
  background: rgba(255, 255, 255, 0.04); /* Subtle transparent tag background */
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-info a {
  color: var(--color-text-muted);
  text-decoration: underline;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.footer-copyright {
  border-top: 1px solid var(--border-glass);
  padding-top: 24px;
  max-width: 680px;
  margin: 0 auto;
}

.footer-warning {
  font-size: 0.68rem !important;
  color: var(--color-text-dim) !important;
  max-width: 600px;
  margin: 0 auto 12px;
  line-height: 1.6;
  text-align: justify;
  text-align-last: center;
}

.copyright {
  font-size: 0.72rem;
  color: var(--color-text-dim);
  margin-top: 8px;
  letter-spacing: 0.5px;
}


/* Floating Bottom CTA Bar */
.floating-cta-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background-color: rgba(10, 18, 36, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-glass);
  padding: 12px 0;
  z-index: 997; /* Just below mobile sticky tabs */
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
}

.floating-cta-bar.show {
  transform: translateY(0);
}

/* Hide floating cta bar when sticky bottom tabs are active on narrow screens */
@media (max-width: 768px) {
  .floating-cta-bar {
    display: none !important;
  }
}

.floating-cta-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.floating-cta-info {
  display: flex;
  flex-direction: column;
}

.floating-p-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.floating-p-price {
  color: var(--color-gold);
  font-weight: 800;
  font-size: 1.25rem;
  font-family: var(--font-accent);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 24px;
}

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

.modal-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 40px;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.show .modal-box {
  transform: scale(1);
}

.success-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: rgba(242, 201, 76, 0.1);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin: 0 auto 24px auto;
  box-shadow: 0 0 20px var(--color-gold-glow);
}

.modal-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
}

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

.receipt-box {
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.receipt-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
}

.receipt-row.font-sm {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.receipt-divider {
  border: 0;
  border-top: 1px solid var(--border-glass);
}

.receipt-total {
  font-size: 1.1rem;
  font-weight: 800;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.animate-pulse {
  animation: pulse 2s infinite ease-in-out;
}

.animate-bounce {
  animation: bounce 2.5s infinite ease-in-out;
}

.pulse {
  animation: pulse 1.8s infinite ease-in-out;
}

/* Instagram Video Card */
.video-endorsement-container {
  margin-top: 30px;
  margin-bottom: 30px;
  position: relative;
}

.video-card {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  transition: var(--transition-smooth);
  background: linear-gradient(135deg, #0e1a2f 0%, #1e3c72 100%);
}

.video-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-gold);
  box-shadow: 0 20px 40px rgba(242, 201, 76, 0.18);
}

.video-card-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(10, 18, 36, 0.5) 0%, rgba(242, 201, 76, 0.1) 100%),
              url('./messageImage_1779703831060.jpg') no-repeat center center;
  background-size: cover;
  filter: blur(2px) brightness(0.6);
  transition: var(--transition-smooth);
}

.video-card:hover .video-card-bg {
  filter: blur(0) brightness(0.7);
  transform: scale(1.03);
}

.video-card-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 5;
  padding: 20px;
}

.instagram-icon-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.play-btn-circle {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background-color: rgba(242, 201, 76, 0.95);
  color: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 0 0 0 rgba(242, 201, 76, 0.5);
  animation: playPulse 2s infinite;
  transition: var(--transition-smooth);
  padding-left: 5px; /* Offset center for play icon */
}

.video-card:hover .play-btn-circle {
  background-color: #fff;
  transform: scale(1.1);
  color: var(--bg-darker);
}

.play-hint-text {
  margin-top: 15px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
  letter-spacing: 0.5px;
}

@keyframes playPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(242, 201, 76, 0.5);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(242, 201, 76, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(242, 201, 76, 0);
  }
}

/* Social Proof Toast */
.social-proof-toast {
  position: fixed;
  bottom: 80px;
  left: 20px;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 995;
  transform: translateX(-150%);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  max-width: 320px;
}

.social-proof-toast.visible {
  transform: translateX(0);
}

.toast-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(242, 201, 76, 0.1);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 1px solid rgba(242, 201, 76, 0.2);
}

.toast-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.85rem;
  line-height: 1.3;
}

.toast-buyer {
  font-weight: 800;
  color: #fff;
}

.toast-action {
  color: var(--color-text-muted);
}

.toast-action strong {
  color: var(--color-gold);
}

.toast-time {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.toast-close {
  background: none;
  border: none;
  color: var(--color-text-dim);
  cursor: pointer;
  padding: 4px;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  align-self: flex-start;
  margin-top: -4px;
  margin-right: -8px;
}

.toast-close:hover {
  color: var(--color-red);
}

/* Floating Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 80px; /* Clear mobile sticky tabs height */
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
  z-index: 996;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.back-to-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background-color: var(--color-gold);
  color: var(--bg-main);
  box-shadow: 0 4px 15px var(--color-gold-glow);
  transform: translateY(-3px);
}

/* Responsive Queries */
@media (max-width: 992px) {
  .hero-grid {
    display: flex;
    flex-direction: column-reverse;
    gap: 40px;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-title .sub-heading {
    font-size: 1.8rem;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-features {
    align-items: center;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .trust-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .lifestyle-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .concept-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .upgrade-main-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .desktop-nav, .header-action {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .mobile-sticky-tabs {
    display: block;
  }
  
  .announcement-content {
    justify-content: center;
    text-align: center;
  }
  
  .ingredients-list-grid {
    grid-template-columns: 1fr;
  }
  
  .checkout-wrapper {
    padding: 24px 16px;
  }
  
  .product-selection-card {
    grid-template-columns: 1fr;
  }
  
  .product-image-display {
    border-right: none;
    border-bottom: 1px solid var(--border-glass);
  }
  
  .modal-box {
    padding: 24px 16px;
  }

  .social-proof-toast {
    bottom: 70px;
    left: 10px;
    right: 10px;
    max-width: calc(100% - 20px);
  }

  .back-to-top-btn {
    bottom: 135px;
    right: 15px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-title .sub-heading {
    font-size: 1.5rem;
  }
  
  .trust-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .spec-chips-group {
    flex-wrap: wrap;
  }
  
  .spec-chip {
    flex: 1 1 45%;
  }
}

/* ==========================================================================
   Checkout Payment & Shipping Info Badges
   ========================================================================== */
.checkout-info-box {
    background-color: var(--bg-card); /* 藍黑卡片背景 */
    border: 1px dashed rgba(242, 201, 76, 0.25); /* 金色虛線 */
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-top: 5px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.info-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-muted);
}

.info-icon {
    font-size: 1.1rem;
    display: inline-block;
    line-height: 1;
}

.info-text {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-muted);
}

.payment-logos {
    display: inline-flex;
    gap: 4px;
    margin-left: 8px;
    align-items: center;
}

.card-logo {
    display: inline-block;
    vertical-align: middle;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    background-color: #ffffff;
}

/* Rotated Saving Badge */
.saving-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-gold), #f59e0b);
    color: #000000;
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 6px;
    margin-left: 10px;
    transform: rotate(-3deg);
    box-shadow: 0 4px 10px rgba(242, 201, 76, 0.25);
    align-self: center;
    transition: all 0.3s ease;
    animation: pulse-subtle 2s infinite ease-in-out;
    letter-spacing: 0.02em;
}

@keyframes pulse-subtle {
    0%, 100% {
        transform: rotate(-3deg) scale(1);
    }
    50% {
        transform: rotate(-3deg) scale(1.05);
    }
}

.checkout-header h2,
.spec-selector-label,
.quantity-label {
    font-family: 'Noto Serif TC', 'Noto Sans TC', serif;
    font-weight: 700;
}

/* Copied Tooltip */
.copied-tooltip {
    position: absolute;
    background-color: #1e293b;
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(8px) translateX(-50%);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.copied-tooltip.show {
    opacity: 1;
    transform: translateY(0) translateX(-50%);
}

.copied-tooltip::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background-color: #1e293b;
}

/* Image Configurator Scale & Transition */
.display-img-wrap {
    overflow: hidden;
    border-radius: var(--radius-lg);
}

#main-product-img {
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.25s ease;
}

.display-img-wrap:hover #main-product-img {
    transform: scale(1.04);
}

#main-product-img.switching {
    opacity: 0.3;
    transform: scale(0.96);
}

/* Floating Mobile CTA Pulsing Glow */
@keyframes cta-pulse-glow-gold {
    0% {
        box-shadow: 0 0 0 0 rgba(242, 201, 76, 0.6);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(242, 201, 76, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(242, 201, 76, 0);
    }
}

#floating-buy-btn {
    animation: cta-pulse-glow-gold 2s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

/* Price Spring Bounce Animation */
@keyframes price-spring-bounce {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(1.08);
  }
  60% {
    transform: scale(0.97);
  }
  100% {
    transform: scale(1);
  }
}

.price-bounce-active {
  animation: price-spring-bounce 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: inline-block;
}