/* ===================================================================
   EPIC WHITE CARE — PREMIUM MEDICAL & BOTANICAL ORAL CARE
   Design System & Modern Styling Architecture
   Brand Palette: Deep Blue (#003087), Fresh Green (#2E8B57),
   Soft Medical Whites (#F8FAFC), Mint & Charcoal Accents
   =================================================================== */

:root {
  /* Core Brand Colors */
  --primary-blue: #003087;
  --primary-blue-hover: #002263;
  --primary-blue-light: #e8f0fe;
  --primary-blue-glow: rgba(0, 48, 135, 0.18);

  --fresh-green: #2E8B57;
  --fresh-green-hover: #236b42;
  --fresh-green-light: #eefbf3;
  --fresh-green-glow: rgba(46, 139, 87, 0.18);

  --mint-accent: #10b981;
  --mint-soft: #d1fae5;
  --cyan-accent: #0284c7;

  --charcoal-black: #0f172a;
  --charcoal-slate: #1e293b;
  --charcoal-card: #273449;

  /* Neutrals & Surfaces */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --bg-glass-card: rgba(255, 255, 255, 0.95);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-white: #ffffff;

  --border-subtle: #e2e8f0;
  --border-primary: rgba(0, 48, 135, 0.12);
  --border-green: rgba(46, 139, 87, 0.16);

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 25px -4px rgba(0, 48, 135, 0.08);
  --shadow-lg: 0 20px 45px -10px rgba(0, 48, 135, 0.14);
  --shadow-glow-blue: 0 8px 30px rgba(0, 48, 135, 0.2);
  --shadow-glow-green: 0 8px 30px rgba(46, 139, 87, 0.2);

  /* Layout & Curves */
  --max-width: 1280px;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Space Grotesk', monospace;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* Background Ambient Gradients */
.ambient-glow-top {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 600px;
  background: radial-gradient(circle at 50% 10%, rgba(0, 48, 135, 0.07) 0%, rgba(46, 139, 87, 0.05) 50%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Section Header Component */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  margin-bottom: 1rem;
  border: 1px solid rgba(0, 48, 135, 0.15);
}

.section-tag.green {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
  border-color: rgba(46, 139, 87, 0.2);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  letter-spacing: -0.02em;
  color: var(--charcoal-black);
  margin-bottom: 1rem;
}

.section-title span.blue-gradient {
  background: linear-gradient(135deg, var(--primary-blue) 0%, #1e40af 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title span.green-gradient {
  background: linear-gradient(135deg, var(--fresh-green) 0%, #15803d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===================================================================
   TOP ANNOUNCEMENT BAR
   =================================================================== */
.top-bar {
  background: linear-gradient(90deg, #002263 0%, var(--primary-blue) 50%, #0043aa 100%);
  color: #ffffff;
  font-size: 0.85rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  position: relative;
  z-index: 100;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
}

.top-bar-badge {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.825rem;
}

.top-bar-right a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #e2e8f0;
  transition: var(--transition-fast);
}

.top-bar-right a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ===================================================================
   NAVIGATION BAR
   =================================================================== */
.main-nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 90;
  transition: var(--transition-smooth);
}

.main-nav.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.98);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  max-width: 230px;
  display: block;
  object-fit: contain;
  transition: transform 0.25s ease, filter 0.25s ease;
}

.brand-logo:hover .brand-logo-img {
  transform: translateY(-1px) scale(1.02);
}

.footer-logo-img {
  height: 52px;
  width: auto;
  max-width: 240px;
  display: block;
  object-fit: contain;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.footer-brand-col .brand-logo:hover .footer-logo-img {
  opacity: 0.92;
  transform: translateY(-1px);
}

.brand-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--fresh-green) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--primary-blue);
  line-height: 1;
}

.brand-name span {
  color: var(--fresh-green);
}

.brand-tagline {
  font-size: 0.725rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-top: 2px;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--fresh-green));
  border-radius: 2px;
  transition: width 0.3s ease;
}

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

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

.btn-contact-quick {
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--primary-blue);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(0, 48, 135, 0.25);
}

.btn-contact-quick:hover {
  background: var(--primary-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 48, 135, 0.35);
}

.cart-toggle-btn {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.cart-toggle-btn:hover {
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  border-color: var(--primary-blue);
}

.cart-count-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--fresh-green);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #ffffff;
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero-section {
  padding: 4rem 0 5rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f0fdf4 100%);
  transition: background 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Atmospheric Glows by Theme */
.hero-section[data-theme="blue"] {
  background: radial-gradient(ellipse 65% 55% at 85% 35%, rgba(0, 48, 135, 0.10) 0%, rgba(248, 250, 252, 0) 70%),
              radial-gradient(circle at 10% 20%, rgba(0, 194, 255, 0.05) 0%, transparent 40%),
              linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #eff6ff 100%);
}

.hero-section[data-theme="green"] {
  background: radial-gradient(ellipse 65% 55% at 85% 35%, rgba(46, 139, 87, 0.12) 0%, rgba(248, 250, 252, 0) 70%),
              radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.06) 0%, transparent 40%),
              linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f0fdf4 100%);
}

.hero-section[data-theme="charcoal"] {
  background: radial-gradient(ellipse 65% 55% at 85% 35%, rgba(15, 23, 42, 0.15) 0%, rgba(248, 250, 252, 0) 70%),
              radial-gradient(circle at 10% 20%, rgba(100, 116, 139, 0.08) 0%, transparent 40%),
              linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f1f5f9 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  background: rgba(0, 48, 135, 0.06);
  border: 1px solid rgba(0, 48, 135, 0.14);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-xs);
}

.hero-badge-pill .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fresh-green);
  box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.25);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 139, 87, 0.5); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(46, 139, 87, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 139, 87, 0); }
}

.hero-heading {
  font-size: clamp(2.3rem, 4.8vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--charcoal-black);
  margin-bottom: 1.25rem;
}

.hero-brand-accent {
  display: block;
  font-size: clamp(1.05rem, 2.4vw, 1.45rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #1d4ed8 60%, var(--fresh-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.hero-heading .highlight-dynamic {
  color: var(--primary-blue);
  transition: color 0.4s ease;
}

.hero-section[data-theme="blue"] .highlight-dynamic {
  color: var(--primary-blue);
}

.hero-section[data-theme="green"] .highlight-dynamic {
  color: var(--fresh-green);
}

.hero-section[data-theme="charcoal"] .highlight-dynamic {
  color: #1e293b;
  text-decoration: underline;
  text-decoration-color: #f59e0b;
  text-underline-offset: 6px;
}

.hero-heading .highlight-blue {
  color: var(--primary-blue);
}

.hero-heading .highlight-green {
  color: var(--fresh-green);
}

.hero-lead {
  font-size: 1.14rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.75rem;
  max-width: 540px;
}

/* 3 Signature Themes Selector in Hero */
.hero-theme-selector {
  margin-bottom: 2rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 4px 16px -2px rgba(0, 0, 0, 0.04);
}

.theme-selector-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.theme-pills {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.theme-pill-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.theme-pill-btn:hover {
  border-color: #cbd5e1;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.theme-pill-btn .theme-pill-color {
  width: 22px;
  height: 6px;
  border-radius: 4px;
  margin-bottom: 0.45rem;
  display: block;
}

.pill-blue {
  background: linear-gradient(90deg, #003087 0%, #0095ff 100%);
}

.pill-green {
  background: linear-gradient(90deg, #2E8B57 0%, #10b981 100%);
}

.pill-charcoal {
  background: linear-gradient(90deg, #0f172a 0%, #64748b 100%);
}

.theme-pill-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--charcoal-black);
  line-height: 1.2;
}

.theme-pill-sub {
  font-size: 0.70rem;
  color: var(--text-muted);
  margin-top: 2px;
  font-weight: 500;
}

/* Active Pill States */
.theme-pill-btn.active[data-theme="blue"] {
  border-color: #003087;
  background: #f0f7ff;
  box-shadow: 0 4px 14px rgba(0, 48, 135, 0.15);
}

.theme-pill-btn.active[data-theme="green"] {
  border-color: #2E8B57;
  background: #f0fdf4;
  box-shadow: 0 4px 14px rgba(46, 139, 87, 0.15);
}

.theme-pill-btn.active[data-theme="charcoal"] {
  border-color: #0f172a;
  background: #f8fafc;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.18);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.btn-primary {
  padding: 0.95rem 2rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-blue) 0%, #002263 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  transition: var(--transition-smooth);
  box-shadow: 0 10px 25px -4px rgba(0, 48, 135, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -4px rgba(0, 48, 135, 0.45);
}

.btn-secondary {
  padding: 0.95rem 1.85rem;
  border-radius: var(--radius-full);
  background: #ffffff;
  color: var(--primary-blue);
  border: 1.5px solid rgba(0, 48, 135, 0.2);
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--primary-blue-light);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

/* Hero Key Metric Badges */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 520px;
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-blue);
  line-height: 1.1;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* Hero Media Showcase */
.hero-media-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hero Slider Showcase */
.hero-slider-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 45px -10px rgba(0, 48, 135, 0.22), 0 0 0 1px rgba(255, 255, 255, 0.8);
  background: #0f172a;
  aspect-ratio: 16 / 10;
  max-height: 520px;
}

.hero-slider-viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-slider-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.65s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.hero-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  opacity: 0.85;
  transition: opacity 0.5s ease;
}

.hero-slide.active {
  opacity: 1;
}

.slide-media-box {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transform: scale(1.01);
  transition: transform 6s ease-out;
}

.hero-slide.active .slide-img {
  transform: scale(1.05);
}

.slide-overlay-gradient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.slide-overlay-gradient.blue-gradient {
  background: linear-gradient(180deg, rgba(0, 48, 135, 0.08) 0%, rgba(0, 20, 60, 0.62) 100%);
}

.slide-overlay-gradient.green-gradient {
  background: linear-gradient(180deg, rgba(46, 139, 87, 0.08) 0%, rgba(10, 40, 25, 0.65) 100%);
}

.slide-overlay-gradient.charcoal-gradient {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.1) 0%, rgba(8, 12, 22, 0.82) 100%);
}

.slide-overlay-gradient.blue-green-gradient {
  background: linear-gradient(180deg, rgba(0, 48, 135, 0.06) 0%, rgba(6, 30, 25, 0.65) 100%);
}

/* Slide Badge & Theme Tags */
.hero-card-badge {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 3;
}

.hero-card-badge.dark-badge {
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-card-badge-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal-black);
  margin-bottom: 0.15rem;
}

.hero-card-badge-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.btn-view-details.dark-btn {
  background: linear-gradient(135deg, #334155 0%, #0f172a 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-view-details.dark-btn:hover {
  background: #f59e0b;
  color: #0f172a;
  border-color: #f59e0b;
}

.slide-theme-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.slide-theme-tag .tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.slide-theme-tag.blue-tag {
  background: rgba(0, 48, 135, 0.1);
  color: #003087;
}

.slide-theme-tag.green-tag {
  background: rgba(46, 139, 87, 0.14);
  color: #2E8B57;
}

.slide-theme-tag.charcoal-tag {
  background: rgba(245, 158, 11, 0.18);
  color: #f59e0b;
}

.slide-theme-tag.kids-tag {
  background: rgba(236, 72, 153, 0.15);
  color: #db2777;
}

.slide-theme-tag.all-tag {
  background: rgba(0, 48, 135, 0.1);
  color: #003087;
}

/* Slider Arrow Controls */
.slider-arrow {
  position: absolute;
  top: 45%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  color: var(--charcoal-black);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  z-index: 5;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.slider-arrow:hover {
  background: #ffffff;
  transform: translateY(-50%) scale(1.1);
  color: var(--primary-blue);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22);
}

.slider-arrow-prev {
  left: 1rem;
}

.slider-arrow-next {
  right: 1rem;
}

/* Slider Bottom Floating Controls: Dots & Counter */
.slider-bottom-controls {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 5;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.slider-dots {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0;
}

.slider-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.slider-dot.active {
  width: 22px;
  border-radius: 5px;
  background: #ffffff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.85);
}

.slider-counter {
  font-size: 0.75rem;
  font-weight: 700;
  color: #e2e8f0;
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
  padding-left: 0.75rem;
}

.slider-counter .current-slide {
  color: #38bdf8;
}

/* ===================================================================
   BRAND THEMES SECTION (3 PILLARS OF EPIC WHITE)
   =================================================================== */
.brand-themes-section {
  padding: 5rem 0 5.5rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%);
  position: relative;
}

.theme-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.theme-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  position: relative;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  border: 1.5px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.theme-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  transition: height 0.3s ease;
}

.theme-card-blue::before {
  background: linear-gradient(90deg, #003087 0%, #0095ff 100%);
}

.theme-card-green::before {
  background: linear-gradient(90deg, #2E8B57 0%, #10b981 100%);
}

.theme-card-charcoal::before {
  background: linear-gradient(90deg, #f59e0b 0%, #0f172a 100%);
}

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

.theme-card:hover::before {
  height: 6px;
}

.theme-card-blue:hover {
  border-color: rgba(0, 48, 135, 0.35);
}

.theme-card-green:hover {
  border-color: rgba(46, 139, 87, 0.35);
}

.theme-card-charcoal {
  background: #0f172a;
  color: #f8fafc;
  border-color: #334155;
}

.theme-card-charcoal:hover {
  border-color: #f59e0b;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.theme-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.theme-color-swatch {
  width: 32px;
  height: 12px;
  border-radius: 6px;
}

.swatch-blue {
  background: linear-gradient(90deg, #003087 0%, #0095ff 100%);
}

.swatch-green {
  background: linear-gradient(90deg, #2E8B57 0%, #10b981 100%);
}

.swatch-charcoal {
  background: linear-gradient(90deg, #f59e0b 0%, #64748b 100%);
}

.theme-card-tag {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.theme-card-charcoal .theme-card-tag {
  color: #94a3b8;
}

.theme-card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.theme-card-blue .theme-card-icon {
  background: rgba(0, 48, 135, 0.08);
  color: #003087;
}

.theme-card-green .theme-card-icon {
  background: rgba(46, 139, 87, 0.1);
  color: #2E8B57;
}

.theme-card-charcoal .theme-card-icon {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.theme-card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--charcoal-black);
  margin-bottom: 0.25rem;
}

.theme-card-charcoal .theme-card-title {
  color: #ffffff;
}

.theme-card-sub {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.95rem;
}

.theme-card-blue .theme-card-sub {
  color: var(--primary-blue);
}

.theme-card-green .theme-card-sub {
  color: var(--fresh-green);
}

.theme-card-charcoal .theme-card-sub {
  color: #f59e0b;
}

.theme-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.theme-card-charcoal .theme-card-desc {
  color: #cbd5e1;
}

.theme-card-products {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.75rem;
}

.product-chip {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.chip-blue {
  background: #e0f2fe;
  color: #0369a1;
}

.chip-green {
  background: #dcfce7;
  color: #15803d;
}

.chip-charcoal {
  background: #1e293b;
  color: #f1f5f9;
  border: 1px solid #475569;
}

.btn-theme-action {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}

.btn-blue-action {
  background: linear-gradient(135deg, #003087 0%, #002263 100%);
  color: #ffffff;
}

.btn-blue-action:hover {
  background: #002263;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 48, 135, 0.3);
}

.btn-green-action {
  background: linear-gradient(135deg, #2E8B57 0%, #1e623c 100%);
  color: #ffffff;
}

.btn-green-action:hover {
  background: #1e623c;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(46, 139, 87, 0.3);
}

.btn-charcoal-action {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #0f172a;
}

.btn-charcoal-action:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
}

@media (max-width: 991px) {
  .theme-cards-grid {
    grid-template-columns: 1fr;
  }
}

.hero-floating-pill {
  position: absolute;
  top: -15px;
  right: 20px;
  background: #ffffff;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(46, 139, 87, 0.2);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  z-index: 2;
  animation: float 4s ease-in-out infinite;
}

.hero-floating-pill .pill-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--fresh-green-light);
  color: var(--fresh-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.hero-floating-pill .pill-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--charcoal-black);
}

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

/* ===================================================================
   TRUST BADGES STRIP
   =================================================================== */
.trust-strip {
  background: #ffffff;
  padding: 2.25rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.trust-badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.trust-badge-item:hover {
  background: var(--bg-main);
  transform: translateY(-2px);
}

.trust-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.35rem;
  transition: var(--transition-fast);
}

.trust-badge-item:nth-child(2) .trust-icon-box,
.trust-badge-item:nth-child(3) .trust-icon-box {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
}

.trust-badge-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--charcoal-black);
  margin-bottom: 2px;
}

.trust-badge-content p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===================================================================
   KEY BENEFITS SECTION (HOMEPAGE)
   =================================================================== */
.key-benefits-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  position: relative;
}

.key-benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.benefit-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

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

.benefit-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 48, 135, 0.18);
}

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

.benefit-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.6rem;
  transition: var(--transition-fast);
}

.benefit-card:nth-child(2) .benefit-icon-wrapper,
.benefit-card:nth-child(4) .benefit-icon-wrapper {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
}

.benefit-card:hover .benefit-icon-wrapper {
  transform: scale(1.08);
}

.benefit-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--charcoal-black);
}

.benefit-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================================================
   PRODUCTS SHOWCASE SECTION & FILTERING
   =================================================================== */
.products-section {
  padding: 6rem 0;
  background: #ffffff;
  position: relative;
}

/* Filter Controls */
.filter-tabs-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 3.5rem;
}

.filter-tab {
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.filter-tab:hover {
  background: #ffffff;
  color: var(--primary-blue);
  border-color: rgba(0, 48, 135, 0.3);
}

.filter-tab.active {
  background: var(--primary-blue);
  color: #ffffff;
  border-color: var(--primary-blue);
  box-shadow: 0 4px 14px rgba(0, 48, 135, 0.25);
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

.product-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 48, 135, 0.2);
}

/* Card Visual Header with Front/Back Switcher */
.card-media-box {
  background: radial-gradient(circle at 50% 50%, #ffffff 0%, #f1f5f9 100%);
  padding: 1.5rem 1.25rem 1rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  min-height: 260px;
  justify-content: center;
}

.card-packaging-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(15, 23, 42, 0.85);
  color: #ffffff;
  backdrop-filter: blur(4px);
  z-index: 2;
}

.card-view-toggles {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 2px;
  z-index: 2;
  box-shadow: var(--shadow-xs);
}

.view-btn {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.view-btn.active {
  background: var(--primary-blue);
  color: #ffffff;
}

.product-img-frame {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-image {
  max-width: 95%;
  max-height: 165px;
  object-fit: contain;
  transition: transform 0.4s ease, opacity 0.3s ease;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.08));
}

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

/* Card Body Content */
.card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-category-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-blue);
  margin-bottom: 0.4rem;
}

.card-product-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--charcoal-black);
  margin-bottom: 0.65rem;
  line-height: 1.3;
}

.card-short-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-specs-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}

.spec-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.spec-pill.highlight {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
  border-color: rgba(46, 139, 87, 0.2);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.card-net-content {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.btn-view-details {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid rgba(0, 48, 135, 0.15);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-view-details:hover {
  background: var(--primary-blue);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 48, 135, 0.25);
}

/* ===================================================================
   ABOUT US & BRAND STORY SECTION
   =================================================================== */
.about-section {
  padding: 6.5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  align-items: center;
  gap: 4rem;
}

.about-media-box {
  position: relative;
}

.about-img-main {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  width: 100%;
}

.about-floating-card {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: #ffffff;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
  max-width: 260px;
}

.about-floating-card h4 {
  font-size: 1.05rem;
  color: var(--fresh-green);
  margin-bottom: 0.25rem;
}

.about-floating-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.about-story-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.mv-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-xs);
}

.mv-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
}

.mv-card:nth-child(2) .mv-icon {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
}

.mv-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.mv-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.company-meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.meta-pill {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.meta-pill svg {
  color: var(--primary-blue);
}

/* ===================================================================
   BENEFITS / WHY EPIC WHITE & SHADE SIMULATOR
   =================================================================== */
.why-section {
  padding: 6.5rem 0;
  background: #ffffff;
}

.why-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4.5rem;
}

.why-feature-card {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: var(--transition-smooth);
}

.why-feature-card:hover {
  background: #ffffff;
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(46, 139, 87, 0.25);
}

.feature-pill-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--fresh-green-light);
  color: var(--fresh-green);
  display: inline-block;
  margin-bottom: 1rem;
}

.why-feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--charcoal-black);
  margin-bottom: 0.75rem;
}

.why-feature-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Interactive Tooth Shade Progression Simulator */
.shade-simulator-box {
  background: linear-gradient(135deg, #001f5c 0%, #003087 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3.5rem;
  position: relative;
  overflow: hidden;
}

.shade-simulator-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.shade-info h3 {
  font-size: 2rem;
  color: #ffffff;
  margin-bottom: 0.85rem;
}

.shade-info p {
  color: #cbd5e1;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.shade-slider-control {
  margin-bottom: 1.5rem;
}

.shade-slider-control label {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.65rem;
  color: #e2e8f0;
}

.shade-range-input {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  outline: none;
  background: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  -webkit-appearance: none;
}

.shade-range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  border: 3px solid var(--fresh-green);
}

.shade-demo-display {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.tooth-simulation-visual {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: #dbe4c6; /* Initial tea/coffee shade */
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
  position: relative;
}

.tooth-simulation-visual svg {
  width: 70px;
  height: 70px;
  fill: #ffffff;
  opacity: 0.9;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.shade-status-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.shade-desc-text {
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ===================================================================
   INTERACTIVE 24-HOUR ORAL ROUTINE BUILDER
   =================================================================== */
.routine-section {
  padding: 6.5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #eefbf3 100%);
}

.routine-tabs-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.routine-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1.5px solid var(--border-subtle);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  box-shadow: var(--shadow-xs);
}

.routine-btn:hover {
  border-color: var(--fresh-green);
  color: var(--fresh-green);
}

.routine-btn.active {
  background: var(--fresh-green);
  color: #ffffff;
  border-color: var(--fresh-green);
  box-shadow: var(--shadow-glow-green);
}

.routine-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.routine-step-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex;
  flex-direction: column;
}

.step-time-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.routine-step-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--charcoal-black);
  margin-bottom: 0.5rem;
}

.routine-step-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.routine-recommendation-box {
  background: var(--bg-main);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: auto;
  border: 1px solid var(--border-subtle);
}

.rec-thumb {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.rec-thumb img {
  max-width: 90%;
  max-height: 44px;
  object-fit: contain;
}

.rec-info h5 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--charcoal-black);
}

.rec-info span {
  font-size: 0.75rem;
  color: var(--fresh-green);
  font-weight: 600;
}

/* ===================================================================
   FREQUENTLY ASKED QUESTIONS (FAQ) SECTION
   =================================================================== */
.faq-section {
  padding: 6.5rem 0;
  background: #ffffff;
}

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

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

.faq-item:hover {
  border-color: rgba(0, 48, 135, 0.2);
}

.faq-item.active {
  background: #ffffff;
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

.faq-question-btn {
  width: 100%;
  text-align: left;
  padding: 1.35rem 1.75rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--charcoal-black);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary-blue);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon-toggle {
  transform: rotate(180deg);
  background: var(--primary-blue);
  color: #ffffff;
  border-color: var(--primary-blue);
}

.faq-answer-pane {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.75rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer-pane {
  padding-bottom: 1.5rem;
}

/* ===================================================================
   CONTACT & SUPPORT SECTION
   =================================================================== */
.contact-section {
  padding: 6.5rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-col h3 {
  font-size: 1.85rem;
  margin-bottom: 0.75rem;
}

.contact-info-col p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.contact-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.contact-detail-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
  transition: var(--transition-fast);
}

.contact-detail-card:hover {
  transform: translateX(4px);
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

.contact-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
}

.contact-detail-card:nth-child(2) .contact-icon-box {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
}

.contact-card-text h4 {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.contact-card-text a,
.contact-card-text span {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--charcoal-black);
}

.social-links-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-icon-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.social-icon-btn:hover {
  background: var(--primary-blue);
  color: #ffffff;
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

/* Contact Form Styling */
.contact-form-wrapper {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.form-grid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--charcoal-black);
  margin-bottom: 0.45rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-subtle);
  background: var(--bg-main);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary-blue);
  background: #ffffff;
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 48, 135, 0.12);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: #ef4444 !important;
  background-color: #fef2f2 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

.form-input.is-valid,
.form-textarea.is-valid {
  border-color: #10b981 !important;
  background-color: #f0fdf4 !important;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15) !important;
}

.field-error-msg {
  display: none;
  color: #dc2626;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: 0.35rem;
  line-height: 1.4;
  animation: fadeIn 0.2s ease;
}

.field-error-msg.visible {
  display: block;
}

.form-submit-row {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1rem;
  margin-top: 0.75rem;
}

@media (max-width: 576px) {
  .form-submit-row {
    grid-template-columns: 1fr;
  }
}

.btn-submit-form {
  width: 100%;
  padding: 0.95rem 1.75rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-blue) 0%, #002263 100%);
  color: #ffffff;
  font-size: 0.96rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  box-shadow: 0 8px 20px rgba(0, 48, 135, 0.28);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn-submit-form:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(0, 48, 135, 0.38);
}

.btn-submit-form:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-submit-whatsapp {
  width: 100%;
  padding: 0.95rem 1.75rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #ffffff;
  font-size: 0.96rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.28);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-submit-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(37, 211, 102, 0.38);
  background: linear-gradient(135deg, #22bf5b 0%, #0e7266 100%);
}

.form-feedback-message {
  display: none;
  margin-top: 1.5rem;
  padding: 1.35rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.6;
  text-align: left;
  box-shadow: var(--shadow-sm);
  animation: modalSlideUp 0.3s ease;
}

.form-feedback-message.success {
  display: block;
  background: #ecfdf5;
  color: #065f46;
  border: 1.5px solid #a7f3d0;
}

.form-feedback-message.error {
  display: block;
  background: #fef2f2;
  color: #991b1b;
  border: 1.5px solid #fecaca;
}

.form-feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.feedback-action-btn {
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

.feedback-action-btn.btn-wa-action {
  background: #25D366;
  color: #ffffff;
}

.feedback-action-btn.btn-mail-action {
  background: var(--primary-blue);
  color: #ffffff;
}

.feedback-action-btn:hover {
  transform: translateY(-1px);
  filter: brightness(0.95);
}

/* Floating WhatsApp Quick Contact Button */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  z-index: 95;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.floating-whatsapp-btn:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
}

.floating-tooltip {
  position: absolute;
  right: 68px;
  background: var(--charcoal-black);
  color: #ffffff;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.floating-whatsapp-btn:hover .floating-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ===================================================================
   FOOTER SECTION
   =================================================================== */
.site-footer {
  background: var(--charcoal-black);
  color: #cbd5e1;
  padding: 5rem 0 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand-col .brand-name {
  color: #ffffff;
}

.footer-brand-col p {
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 1.25rem 0 1.5rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 1.35rem;
  font-weight: 700;
}

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

.footer-links-list a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-links-list a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.9rem;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: #94a3b8;
}

.footer-contact-list a {
  color: #94a3b8;
  transition: var(--transition-fast);
}

.footer-contact-list a:hover {
  color: #ffffff;
}

.footer-bottom-bar {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: #64748b;
}

.footer-developer-credit {
  color: #94a3b8;
  font-weight: 500;
}

.footer-developer-credit span {
  color: #38bdf8;
  font-weight: 600;
}

/* ===================================================================
   MODAL: PRODUCT DETAILS (FRONT + BACK PACKAGING SPECIFICATIONS)
   =================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-backdrop.open {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.4);
  position: relative;
  display: flex;
  flex-direction: column;
  animation: modalSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
  from { transform: translateY(30px) scale(0.96); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--charcoal-black);
  z-index: 10;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: #fee2e2;
  color: #ef4444;
}

.modal-inner-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  padding: 2.5rem;
}

.modal-media-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.modal-main-img-box {
  background: radial-gradient(circle at 50% 50%, #ffffff 0%, #f1f5f9 100%);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  padding: 1.5rem;
  width: 100%;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  position: relative;
  overflow: hidden;
}

.modal-main-img {
  max-width: 95%;
  max-height: 270px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.modal-view-tabs {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-surface-alt);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.modal-tab-btn {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.modal-tab-btn.active {
  background: var(--primary-blue);
  color: #ffffff;
}

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

.modal-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-blue);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--charcoal-black);
  margin-bottom: 0.75rem;
}

.modal-specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.modal-section-title {
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--charcoal-black);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 1rem;
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.modal-benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.modal-benefits-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.modal-benefits-list li::before {
  content: '✓';
  color: var(--fresh-green);
  font-weight: 800;
}

.modal-text-block {
  font-size: 0.86rem;
  color: var(--text-secondary);
  background: var(--bg-main);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  line-height: 1.55;
  margin-bottom: 0.75rem;
}

.modal-batch-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-subtle);
  display: flex;
  justify-content: space-between;
  margin-top: auto;
}

/* ===================================================================
   SLIDE-OVER CART / SAMPLE DRAWER
   =================================================================== */
.cart-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cart-drawer-backdrop.open {
  display: block;
  opacity: 1;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: -420px;
  width: 100%;
  max-width: 400px;
  height: 100%;
  background: #ffffff;
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.2);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.open {
  right: 0;
}

.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-header h3 {
  font-size: 1.25rem;
  color: var(--charcoal-black);
}

.cart-items-list {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.cart-item-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.cart-item-thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.cart-item-thumb img {
  max-width: 85%;
  max-height: 50px;
  object-fit: contain;
}

.cart-item-details {
  flex-grow: 1;
}

.cart-item-details h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--charcoal-black);
}

.cart-item-details span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cart-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-main);
}

/* ===================================================================
   TOAST NOTIFICATION
   =================================================================== */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--charcoal-black);
  color: #ffffff;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border-left: 4px solid var(--fresh-green);
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* ===================================================================
   MOBILE NAVIGATION DRAWER & BACKDROP
   =================================================================== */
body.menu-open {
  overflow: hidden;
  touch-action: none;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.mobile-nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: -330px;
  width: 310px;
  max-width: 86vw;
  height: 100%;
  background: #ffffff;
  box-shadow: 15px 0 40px rgba(0, 0, 0, 0.22);
  z-index: 999;
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transition: left 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav-drawer.open {
  left: 0;
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-logo img {
  height: 38px;
  width: auto;
  max-width: 190px;
  object-fit: contain;
}

.mobile-drawer-close {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.mobile-drawer-close:hover {
  background: #fee2e2;
  color: #ef4444;
}

.mobile-drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 1.5rem 0;
}

.mobile-drawer-links li a.mobile-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.mobile-drawer-links li a.mobile-link:hover,
.mobile-drawer-links li a.mobile-link:focus {
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  transform: translateX(4px);
}

.drawer-icon {
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.drawer-quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.drawer-action-btn {
  padding: 0.7rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

.drawer-action-btn.btn-call {
  background: var(--primary-blue-light);
  color: var(--primary-blue);
  border: 1px solid rgba(0, 48, 135, 0.2);
}

.drawer-action-btn.btn-wa {
  background: var(--fresh-green-light);
  color: var(--fresh-green);
  border: 1px solid rgba(46, 139, 87, 0.2);
}

.drawer-action-btn:hover {
  transform: translateY(-1px);
  filter: brightness(0.95);
}

.drawer-meta-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.drawer-meta-title {
  font-weight: 800;
  color: var(--primary-blue);
  letter-spacing: 0.02em;
}

.drawer-meta-sub {
  margin-top: 2px;
}

/* ===================================================================
   RESPONSIVE ARCHITECTURE (ALL SCREEN SIZES)
   =================================================================== */

/* 1. Ultra-Wide & 4K Displays (>= 1400px) */
@media (min-width: 1400px) {
  .container {
    max-width: 1360px;
  }

  .hero-section {
    padding: 5rem 0 6rem;
  }
}

/* 2. Medium Laptops & Desktops (<= 1200px) */
@media (max-width: 1200px) {
  .nav-links {
    gap: 1.35rem;
  }

  .nav-link {
    font-size: 0.9rem;
  }

  .hero-grid {
    gap: 2.5rem;
  }

  .hero-heading {
    font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  }
}

/* 3. Tablets Landscape & Small Laptops (<= 1024px) */
@media (max-width: 1024px) {
  .nav-links,
  .btn-contact-quick {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-slider-card {
    max-width: 720px;
    margin: 0 auto;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }

  .trust-badges-grid,
  .key-benefits-grid,
  .why-features-grid,
  .routine-steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .theme-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }

  .shade-simulator-box {
    grid-template-columns: 1fr;
    gap: 2.25rem;
    padding: 2.5rem;
  }

  .footer-top-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem;
  }

  .modal-inner-grid {
    grid-template-columns: 1fr;
    padding: 2rem;
    gap: 2rem;
  }

  .modal-main-img-box {
    height: 270px;
  }
}

/* 4. Tablets Portrait & Phablets (<= 768px) */
@media (max-width: 768px) {
  .top-bar {
    padding: 0.55rem 0;
    font-size: 0.8rem;
  }

  .top-bar-right {
    display: none;
  }

  .top-bar-left {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .nav-container {
    height: 66px;
  }

  .brand-logo-img {
    height: 42px;
  }

  .hero-section {
    padding: 2.75rem 0 3.5rem;
  }

  .hero-badge-pill {
    font-size: 0.8rem;
    padding: 0.35rem 0.85rem;
    margin-bottom: 1.25rem;
  }

  .hero-heading {
    font-size: clamp(1.85rem, 5vw, 2.5rem);
    line-height: 1.16;
  }

  .hero-lead {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.75rem;
  }

  .theme-cards-grid {
    grid-template-columns: 1fr;
  }

  .about-floating-card {
    position: static;
    margin-top: 1.25rem;
    width: 100%;
    box-shadow: var(--shadow-sm);
  }

  .routine-steps-grid,
  .why-features-grid,
  .form-grid-row {
    grid-template-columns: 1fr;
  }

  .shade-simulator-box {
    padding: 2rem 1.5rem;
    gap: 1.75rem;
  }

  .contact-form-wrapper {
    padding: 1.75rem 1.5rem;
  }

  .modal-dialog {
    max-width: 95%;
    max-height: 92vh;
  }
}

/* 5. Standard Mobile Devices (<= 576px) */
@media (max-width: 576px) {
  .container {
    padding: 0 1.15rem;
  }

  .nav-container {
    height: 60px;
  }

  .brand-logo-img {
    height: 38px;
    max-width: 190px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 0.85rem;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-secondary {
    width: 100%;
    justify-content: center;
    padding: 0.9rem 1.5rem;
  }

  .theme-pills {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .theme-pill-btn {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
  }

  .theme-pill-name {
    font-size: 0.92rem;
  }

  .theme-pill-sub {
    margin-left: auto;
    font-size: 0.76rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding-top: 1.25rem;
  }

  .metric-val {
    font-size: 1.45rem;
  }

  .metric-label {
    font-size: 0.75rem;
  }

  /* Horizontal touch swipe for categories */
  .filter-tabs-wrapper {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0 0.25rem 0.5rem 0;
    gap: 0.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-tabs-wrapper::-webkit-scrollbar {
    display: none;
  }

  .filter-tab {
    flex-shrink: 0;
    font-size: 0.82rem;
    padding: 0.5rem 0.95rem;
    white-space: nowrap;
  }

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

  .product-card-media {
    height: 220px;
  }

  .trust-badges-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .key-benefits-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
    gap: 0.65rem;
  }

  .footer-developer-credit {
    text-align: center;
  }

  .contact-cards-stack {
    gap: 0.75rem;
  }

  .contact-detail-card {
    padding: 1rem;
    gap: 0.85rem;
  }

  .contact-card-text a,
  .contact-card-text span {
    font-size: 0.95rem;
  }

  .contact-form-wrapper {
    padding: 1.25rem;
    border-radius: var(--radius-md);
  }

  .shade-simulator-box {
    padding: 1.5rem 1.25rem;
    border-radius: var(--radius-md);
  }

  .shade-info h3 {
    font-size: 1.45rem;
  }

  .shade-info p {
    font-size: 0.92rem;
  }

  .modal-dialog {
    border-radius: var(--radius-md);
    max-height: 94vh;
  }

  .modal-inner-grid {
    padding: 1.25rem 1rem;
    gap: 1.25rem;
  }

  .modal-main-img-box {
    height: 210px;
    padding: 1rem;
  }

  .modal-title {
    font-size: 1.3rem;
  }

  .modal-close-btn {
    top: 0.75rem;
    right: 0.75rem;
    width: 36px;
    height: 36px;
  }

  .cart-drawer {
    width: 100%;
    max-width: 100%;
  }
}

/* 6. Extra Small Screens (<= 360px - e.g. iPhone SE 320px, Galaxy Fold cover) */
@media (max-width: 360px) {
  .container {
    padding: 0 0.85rem;
  }

  .nav-container {
    height: 56px;
  }

  .brand-logo-img {
    height: 33px;
    max-width: 160px;
  }

  .mobile-menu-btn {
    width: 38px;
    height: 38px;
  }

  .hero-heading {
    font-size: 1.6rem;
  }

  .hero-badge-pill {
    font-size: 0.72rem;
    padding: 0.28rem 0.65rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .metric-val {
    font-size: 1.35rem;
  }

  .shade-simulator-box {
    padding: 1.2rem 0.85rem;
    border-radius: 12px;
  }

  .shade-info h3 {
    font-size: 1.3rem;
  }

  .section-title {
    font-size: 1.55rem;
  }

  .section-header {
    margin-bottom: 2.25rem;
  }

  .modal-dialog {
    width: 98%;
  }

  .modal-inner-grid {
    padding: 1rem 0.75rem;
  }

  .modal-main-img-box {
    height: 180px;
  }
}