/* ==========================================================================
   Alcaline.Yajhira.com - Master Stylesheet
   Shared Design System: Yajhira Luxury Biohacking & Water Pureness
   ========================================================================== */

@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

:root {
  /* Yajhira Luxury Typography System */
  --font-display: 'Righteous', 'Plus Jakarta Sans', sans-serif;
  --font-luxury: 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', 'Poppins', sans-serif;

  /* HSL Tailored Color Palette */
  --primary-hue: 210;
  --primary: hsl(var(--primary-hue), 100%, 50%);
  --primary-dark: hsl(var(--primary-hue), 100%, 38%);
  --primary-glow: rgba(0, 102, 255, 0.35);

  --accent-cyan: hsl(186, 100%, 48%);
  --accent-cyan-glow: rgba(0, 242, 254, 0.4);
  --accent-emerald: hsl(158, 84%, 40%);
  --accent-emerald-glow: rgba(16, 185, 129, 0.3);
  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.4);

  /* Yajhira High-Contrast Dark Surfaces & Glass Tokens */
  --bg-dark: #030a17;
  --surface-dark: #08142a;
  --surface-card: #0c1b38;
  --surface-glass: rgba(5, 16, 40, 0.92);
  --border-glass: rgba(0, 242, 254, 0.35);

  /* High-Readability Text Colors (WCAG AA Compliant 4.5:1+) */
  --text-main: #FFFFFF;
  --text-muted: #E2F1FF;
  --text-subtle: #94C4F8;

  /* Shadows & Glows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 40px -15px rgba(0, 102, 255, 0.35);
  --shadow-glow: 0 0 35px rgba(0, 242, 254, 0.25);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base System (Zero Horizontal Scrollbar Safeguard) */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden !important;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  position: relative;
}

/* Universal Media Safeguard (Prevents Image & Video Layout Blowouts) */
img, video, iframe, canvas, svg {
  max-width: 100% !important;
  box-sizing: border-box;
}

/* Custom Scrollbar (Yajhira Style) */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-cyan) 0%, var(--primary) 100%);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

/* Top Scroll Progress Bar (Yajhira Signature Effect) */
#scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #0066FF 0%, #00F2FE 50%, #f59e0b 100%);
  width: 0%;
  z-index: 9999;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.8);
  pointer-events: none;
  transition: width 0.1s ease-out;
}

/* Floating Particles Container */
#particles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--accent-cyan);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 8px var(--accent-cyan-glow);
  animation: float-particle 18s infinite ease-in-out;
}

@keyframes float-particle {
  0%, 100% {
    transform: translate(0, 0) scale(0.8);
    opacity: 0;
  }
  10% {
    opacity: 0.7;
  }
  90% {
    opacity: 0.7;
  }
  50% {
    transform: translate(var(--move-x, 100px), var(--move-y, -200px)) scale(1.3);
    opacity: 0.9;
  }
}

/* Typography Helpers & Font Sizes (UI/UX Pro Max High Contrast) */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
  text-wrap: balance;
  word-break: normal;
  overflow-wrap: break-word;
}

.font-luxury {
  font-family: var(--font-luxury);
}

.font-display {
  font-family: var(--font-display);
}

.font-sans {
  font-family: var(--font-body);
}

.antialiased {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.scroll-smooth {
  scroll-behavior: smooth;
}

/* Fluid Heading & Typography Scale (Android Mobile & Desktop Optimized) */
.fs-250 {
  font-size: clamp(1.5rem, 4.5vw, 2.5rem) !important;
  line-height: 1.18 !important;
  letter-spacing: -0.02em !important;
}

.fs-175 {
  font-size: clamp(1.25rem, 3.2vw, 1.75rem) !important;
  line-height: 1.22 !important;
}

.fs-135 {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem) !important;
  line-height: 1.28 !important;
}

.fs-120 {
  font-size: clamp(1.02rem, 2.2vw, 1.2rem) !important;
  line-height: 1.3 !important;
}

.fs-110 {
  font-size: clamp(0.98rem, 2vw, 1.1rem) !important;
  line-height: 1.35 !important;
}

.fs-100 {
  font-size: 1rem !important;
  line-height: 1.4 !important;
}

.fs-095 {
  font-size: 0.95rem !important;
  line-height: 1.45 !important;
}

.fs-090 {
  font-size: 0.9rem !important;
  line-height: 1.45 !important;
}

.fs-085 {
  font-size: 0.85rem !important;
  line-height: 1.45 !important;
}

.fs-080 {
  font-size: 0.8rem !important;
  line-height: 1.45 !important;
}

.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }

.color-accent-green { color: #10b981 !important; }
.badge-gold { background: rgba(245, 158, 11, 0.15) !important; border-color: rgba(245, 158, 11, 0.4) !important; color: #f59e0b !important; }
.bento-card-highlight { border-color: rgba(0, 242, 254, 0.4) !important; box-shadow: 0 10px 30px rgba(0, 242, 254, 0.12) !important; }
.bg-dark { background-color: var(--bg-dark) !important; }
.bg-dark-section { background-color: #050e20 !important; }
.bg-dark-section-alt { background-color: #020612 !important; }
.text-slate-100 { color: #f1f5f9 !important; }
.centered { text-align: center; margin-left: auto; margin-right: auto; }
.mt-6 { margin-top: 2rem !important; }
.dock-label { font-size: 0.68rem; font-weight: 600; color: var(--text-muted); margin-top: 2px; }

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

.section-padding {
  padding: 90px 0;
  position: relative;
  z-index: 2;
}

/* Page Hero Section Clearance for Fixed Header across ALL HTML pages */
body > section:first-of-type,
main > section:first-of-type,
.page-hero-section {
  padding-top: 135px !important;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 55px 0;
  }

  body > section:first-of-type,
  main > section:first-of-type,
  .page-hero-section {
    padding-top: 115px !important;
    padding-bottom: 45px !important;
  }
}

@media (max-width: 480px) {
  body > section:first-of-type,
  main > section:first-of-type,
  .page-hero-section {
    padding-top: 110px !important;
    padding-bottom: 40px !important;
  }
}

/* Top Announcement Bar (Mobile & Desktop) */
.top-announcement-bar {
  background: linear-gradient(90deg, #0044B3 0%, #0099FF 50%, #0044B3 100%);
  color: #FFFFFF;
  text-align: center;
  font-size: clamp(0.75rem, 1.8vw, 0.85rem);
  font-weight: 700;
  padding: 0.4rem 1rem;
  letter-spacing: 0.02em;
  width: 100%;
  box-shadow: 0 2px 8px rgba(0, 102, 255, 0.25);
  border-bottom: 1px solid rgba(0, 242, 254, 0.2);
}

/* Tech Spec Bar (Hero Data Bar - Premium Grid Layout) */
.spec-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 1.75rem;
  padding: 0.85rem 1rem;
  background: rgba(4, 18, 44, 0.85);
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: 1.25rem;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 229, 255, 0.12);
}

.spec-bar__item {
  font-size: clamp(0.78rem, 1.8vw, 0.88rem);
  font-weight: 700;
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.6rem;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: 0.75rem;
  white-space: nowrap;
  transition: all 0.25s ease;
  text-align: center;
}

.spec-bar__item:hover {
  background: rgba(0, 229, 255, 0.16);
  border-color: rgba(0, 229, 255, 0.5);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .spec-bar {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.6rem !important;
    padding: 0.75rem !important;
  }
}

/* Header & Nav */
.header-sticky {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 9, 17, 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition-fast);
}

/* Header Container Width & Navigation Layout Optimization */
.header-sticky .container {
  max-width: 1360px;
  width: 100%;
  padding: 0 1.25rem;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 0.75rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-display);
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 36px;
  max-height: 40px;
  width: auto;
  border-radius: 8px;
  object-fit: contain;
  vertical-align: middle;
  flex-shrink: 0;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.25);
  transition: transform 0.25s ease;
}

.brand-logo-img:hover {
  transform: scale(1.05);
}

.brand-logo span {
  background: linear-gradient(135deg, var(--accent-cyan), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge-tag {
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.35);
  color: var(--accent-cyan);
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition-fast);
  white-space: nowrap;
  padding: 0.25rem 0.35rem;
}

.nav-links a:hover {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px var(--accent-cyan-glow);
}

.flex-center-gap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Language Switcher Styling (Eliminates Flag Code Duplication) */
.lang-switcher-box {
  display: inline-flex;
  align-items: center;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: 9999px;
  padding: 2px;
  gap: 2px;
  flex-shrink: 0;
}

.lang-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1;
}

.lang-btn:hover {
  color: #FFFFFF;
}

.lang-btn.active {
  background: linear-gradient(135deg, #00F2FE, #0066FF);
  color: #FFFFFF;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
}

.btn-nav-action {
  padding: 0.45rem 1rem !important;
  font-size: 0.82rem !important;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-nav-action {
  padding: 0.55rem 1.15rem;
  font-size: 0.85rem;
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #0066FF 0%, #00F2FE 100%);
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(0, 102, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0, 242, 254, 0.55);
}

.select-item-btn .btn-text-short {
  display: none;
}
.select-item-btn .btn-text-full {
  display: inline;
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.55);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

/* Hero Section */
.hero-section {
  padding-top: 155px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.4);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  color: #00E5FF;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.15);
}

.hero-title {
  font-size: clamp(1.85rem, 4.2vw, 3.3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  font-family: var(--font-luxury);
  line-height: 1.2;
  color: #FFFFFF;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #00E5FF 0%, #3B82F6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: #E2F1FF;
  margin-bottom: 1.75rem;
  max-width: 580px;
  line-height: 1.55;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-glass);
}

.stat-item h4 {
  font-size: 2.2rem;
  color: var(--accent-cyan);
  font-family: var(--font-display);
  text-shadow: 0 0 15px var(--accent-cyan-glow);
}

.stat-item p {
  font-size: 0.85rem;
}

/* Cards & Glassmorphism (Yajhira Glow) */
.glass-card {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: 1.5rem;
  padding: 2.25rem;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(0, 242, 254, 0.45);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -15px rgba(0, 242, 254, 0.3), var(--shadow-glow);
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.bento-card-large {
  grid-column: span 2;
}

/* Layered Filtration Visualizer (UI/UX Pro Max) */
.filter-visualizer {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 980px;
  margin: 0 auto;
  width: 100%;
}

/* Banner Zoom Container & Lightbox */
.banner-zoom-box {
  position: relative;
  max-width: 1140px;
  width: 100%;
  margin: 1.5rem auto 1rem auto;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid rgba(0, 242, 254, 0.45);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.25), 0 15px 40px rgba(0, 0, 0, 0.6);
  cursor: zoom-in;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  background: rgba(3, 14, 34, 0.9);
}

.banner-zoom-box:hover {
  transform: scale(1.015);
  box-shadow: 0 0 50px rgba(0, 242, 254, 0.45), 0 20px 45px rgba(0, 0, 0, 0.7);
  border-color: var(--accent-cyan);
}

.section-banner-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.banner-action-bar {
  margin: 0.75rem auto 2.25rem auto;
  display: flex;
  justify-content: center;
}

.banner-zoom-btn {
  border: 1px solid var(--accent-cyan) !important;
  color: var(--accent-cyan) !important;
  background: rgba(2, 10, 26, 0.85) !important;
  font-size: 0.9rem !important;
  padding: 0.65rem 1.4rem !important;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2) !important;
  border-radius: 9999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  transition: var(--transition-fast);
}

.banner-zoom-btn:hover {
  background: linear-gradient(135deg, #0066FF, #00F2FE) !important;
  color: #ffffff !important;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.6) !important;
  transform: translateY(-2px);
}

/* 5 Layers Grid Cards System (UI/UX Pro Max Opaque Overlay & Bold Text) */
.filter-grid-5layers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  width: 100%;
}

.filter-grid-5layers .filter-step-card:last-child {
  grid-column: span 2;
}

.filter-step-card {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  padding: 1.35rem 1.5rem;
  border-radius: 1.2rem;
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.96), rgba(2, 10, 26, 0.98));
  border: 1px solid rgba(0, 242, 254, 0.4);
  border-left: 5px solid var(--accent-cyan);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: left;
  position: relative;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.8);
}

.filter-step-card:hover, .filter-step-card.active {
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(4, 30, 64, 0.98), rgba(0, 102, 255, 0.3));
  border-color: var(--accent-cyan);
  box-shadow: 
    0 15px 35px rgba(0, 0, 0, 0.9),
    0 0 25px rgba(0, 242, 254, 0.45);
}

.filter-step-card .step-num {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.25), rgba(0, 102, 255, 0.4));
  border: 2px solid var(--accent-cyan);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
  transition: var(--transition-fast);
}

.filter-step-card:hover .step-num, .filter-step-card.active .step-num {
  background: linear-gradient(135deg, #00F2FE, #0066FF);
  color: #fff;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.8);
}

.filter-step-card h4 {
  color: #ffffff;
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
  font-family: var(--font-luxury);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.9);
}

.filter-step-card p {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.55;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.9);
}

/* Lightbox Modal for Image Zoom */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 8, 20, 0.92);
  -webkit-backdrop-filter: blur(15px);
  backdrop-filter: blur(15px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img-full {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 1rem;
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 0 50px rgba(0, 242, 254, 0.5);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.lightbox-modal.active .lightbox-img-full {
  transform: scale(1);
}

@media (max-width: 768px) {
  .filter-grid-5layers {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  .filter-grid-5layers .filter-step-card:last-child {
    grid-column: span 2;
  }
  .filter-step-card {
    padding: 0.9rem 0.85rem;
    gap: 0.65rem;
    border-radius: 1rem;
    border-left-width: 4px;
  }
  .filter-step-card .step-num {
    width: 34px;
    height: 34px;
    min-width: 34px;
    font-size: 0.95rem;
  }
  .filter-step-card h4 {
    font-size: 0.95rem;
    line-height: 1.25;
    margin-bottom: 0.25rem;
  }
  .filter-step-card p {
    font-size: 0.8rem;
    line-height: 1.35;
  }
}

/* Cotizador & Product Selector (UI/UX Pro Max) */
.calculator-box {
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.95), rgba(2, 10, 26, 0.98));
  border: 1px solid var(--border-glass);
  border-radius: 2rem;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), var(--shadow-glow);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}

.tab-group {
  display: flex;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.35rem;
  border-radius: 9999px;
}

.tab-btn {
  flex: 1;
  padding: 0.75rem 1.25rem;
  border-radius: 9999px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn.active {
  background: linear-gradient(135deg, #0066FF, #00F2FE);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 102, 255, 0.5);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: linear-gradient(135deg, rgba(8, 22, 50, 0.9), rgba(4, 14, 34, 0.95));
  border: 1px solid var(--border-glass);
  border-radius: 1.25rem;
  padding: 1.5rem;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.product-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
}

.price-tag {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-display);
}

/* Legal Banner & Disclaimers */
.legal-box {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-radius: 1.25rem;
  padding: 1.5rem;
  margin-top: 3rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.legal-icon {
  color: #ef4444;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.testimonial-disclaimer {
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-top: 1.5rem;
  border-left: 3px solid var(--accent-cyan);
  padding-left: 0.85rem;
}

/* Floating Persistent WhatsApp Button (Yajhira Glow) */
.whatsapp-float {
  position: fixed;
  bottom: 2.25rem;
  right: 2.25rem;
  z-index: 9999;
  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 10px 25px rgba(37, 211, 102, 0.5), 0 0 15px rgba(37, 211, 102, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: waPulseGlow 3s infinite ease-in-out;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.75), 0 0 25px rgba(37, 211, 102, 0.5);
}

@keyframes waPulseGlow {
  0%, 100% {
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.5), 0 0 15px rgba(37, 211, 102, 0.3);
  }
  50% {
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.75), 0 0 25px rgba(37, 211, 102, 0.6);
  }
}

/* Footer */
footer {
  background: #020509;
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 30px 0;
  position: relative;
  z-index: 2;
}

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

/* Utility Classes */
.flex-wrap-gap { display: flex; gap: 1rem; flex-wrap: wrap; }
.flex-between-center { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.relative-box { position: relative; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.icon-sm { width: 32px; height: 32px; }
.icon-lg { width: 64px; height: 64px; }
.btn-nav-action { padding: 0.6rem 1.25rem; font-size: 0.9rem; }
.btn-currency { padding: 0.5rem 1.25rem; font-size: 0.85rem; }
.header-badge { position: absolute; top: 1.5rem; right: 1.5rem; }
.hero-card-icon { width: 140px; height: 140px; border-radius: 50%; background: linear-gradient(135deg, rgba(0,242,254,0.2), rgba(0,102,255,0.4)); margin: 2rem auto; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-glow); }
.hero-card-specs { background: rgba(255,255,255,0.05); padding: 1rem; border-radius: 1rem; display: flex; justify-content: space-around; text-align: left; }
.section-header-box {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3.5rem auto;
  padding: 0 0.5rem;
}
.section-header-box-sm {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 2.5rem auto;
  padding: 0 0.5rem;
}
.section-header-box h1,
.section-header-box h2,
.section-header-box-sm h1,
.section-header-box-sm h2 {
  font-size: clamp(1.45rem, 5.5vw, 2.35rem) !important;
  line-height: 1.22 !important;
  letter-spacing: -0.015em !important;
  margin-top: 0.65rem !important;
  margin-bottom: 0.4rem !important;
  font-family: var(--font-luxury) !important;
  text-wrap: balance !important;
  word-break: normal !important;
}
.section-header-box p,
.section-header-box-sm p {
  font-size: clamp(0.85rem, 2.8vw, 1.05rem) !important;
  line-height: 1.5 !important;
  color: var(--text-muted) !important;
  margin: 0.4rem auto 0 auto !important;
  max-width: 650px !important;
  text-wrap: pretty !important;
}
.bento-icon-blue { background: rgba(0,102,255,0.2); width: 48px; height: 48px; border-radius: 1rem; display: flex; align-items: center; justify-content: center; color: var(--accent-cyan); }
.bento-icon-green { background: rgba(16,185,129,0.2); width: 48px; height: 48px; border-radius: 1rem; display: flex; align-items: center; justify-content: center; color: var(--accent-emerald); }
.bento-icon-gold { background: rgba(245,158,11,0.2); width: 48px; height: 48px; border-radius: 1rem; display: flex; align-items: center; justify-content: center; color: var(--accent-gold); }
.badge-green { background: rgba(16,185,129,0.15); color: var(--accent-emerald); border-color: rgba(16,185,129,0.3); }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.75rem; }
.testimonial-card {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: 1.25rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.testimonial-stars {
  color: #f59e0b;
  margin-bottom: 0.75rem;
  display: flex;
  gap: 0.25rem;
  font-size: 0.95rem;
}
.testimonial-quote {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-main);
  margin-bottom: 1rem;
}
.dark { color-scheme: dark; }

.testimonial-user-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.35);
}

.testimonial-disclaimer {
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.95), rgba(2, 10, 26, 0.98));
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-left: 5px solid var(--accent-cyan);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #E2F1FF;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.testimonial-disclaimer strong {
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: inline-block;
  margin-bottom: 0.25rem;
}

.testimonial-swipe-hint {
  display: none;
}
.color-white { color: #fff; }
.color-gold { color: var(--accent-gold); }
.color-red { color: #ef4444; }
.color-light-red { color: #fca5a5; }
.color-muted { color: var(--text-muted); }
.color-accent-cyan { color: var(--accent-cyan); }
.color-accent-gold { color: var(--accent-gold); }
.color-subtle { color: var(--text-subtle); }
.footer-divider { border-top: 1px solid var(--border-glass); padding-top: 2rem; text-align: center; font-size: 0.8rem; color: var(--text-subtle); }
.display-inline-block { display: inline-block; }
.max-w-450 { max-width: 450px; }
.footer-links-list { list-style: none; font-size: 0.85rem; display: flex; flex-direction: column; gap: 0.5rem; }

.footer-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--accent-cyan);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.75rem;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.12);
}

/* Product Card Images & Category Filter Tabs */
.product-image-box {
  width: 100%;
  height: 200px;
  border-radius: 1rem;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(4, 14, 34, 0.95), rgba(2, 8, 20, 0.98));
  position: relative;
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  transition: transform 0.4s ease;
  padding: 0.35rem;
}
.product-card:hover .product-img {
  transform: scale(1.06);
}

/* Multi-photo gallery switcher */
.product-img-gallery {
  overflow: hidden;
}

.product-img-gallery .gallery-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  padding: 0.35rem;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.product-img-gallery .gallery-slide.active {
  opacity: 1;
  transform: scale(1);
}

.product-card:hover .product-img-gallery .gallery-slide.active {
  transform: scale(1.05);
}

/* Gallery dot indicators */
.gallery-dots {
  position: absolute;
  bottom: 0.6rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
  z-index: 4;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.3rem 0.6rem;
  border-radius: 9999px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.gallery-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  padding: 0;
  min-width: 8px;
  min-height: 8px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.gallery-dot.active {
  background: var(--accent-cyan);
  transform: scale(1.3);
  box-shadow: 0 0 8px rgba(0, 242, 254, 0.7);
}

.gallery-dot:hover {
  background: rgba(0, 242, 254, 0.65);
  transform: scale(1.2);
}
.product-img-badge {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  z-index: 5;
  font-size: 0.62rem;
  padding: 0.15rem 0.5rem;
  background: rgba(3, 10, 26, 0.88);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
  max-width: calc(100% - 0.8rem);
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.product-card h3 {
  font-size: 1.12rem;
  line-height: 1.3;
  margin-top: 0.65rem;
  margin-bottom: 0.4rem;
}
.category-filter-btn {
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border-glass);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
}
.category-filter-btn.active, .category-filter-btn:hover {
  background: linear-gradient(135deg, #0066FF, #00F2FE);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(0, 102, 255, 0.4);
}

/* Benefits Modal Visor Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(4, 10, 24, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-container {
  background: linear-gradient(135deg, rgba(16, 26, 51, 0.95), rgba(8, 14, 30, 0.98));
  border: 1px solid var(--border-glass);
  border-radius: 1.5rem;
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 242, 254, 0.2);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}
.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}
.modal-close-btn:hover {
  background: #ff4d4d;
  color: #fff;
  border-color: transparent;
}
.modal-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 0.85rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.modal-benefit-icon {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.btn-view-benefits {
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--accent-cyan);
  width: 100%;
  padding: 0.55rem;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  margin-bottom: 0.75rem;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.btn-view-benefits:hover {
  background: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

/* Section Banner Image Style */
.section-banner-img {
  max-width: 680px;
  width: 100%;
  height: auto;
  margin: 1.5rem auto 0 auto;
  display: block;
  border-radius: 1.25rem;
  border: 1px solid rgba(0, 242, 254, 0.4);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.25), 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.section-banner-img:hover {
  transform: scale(1.015);
  box-shadow: 0 0 40px rgba(0, 242, 254, 0.4), 0 15px 35px rgba(0, 0, 0, 0.6);
}

.tech-main-banner {
  max-width: 880px !important;
  border-radius: 1.5rem !important;
  border: 1px solid rgba(0, 242, 254, 0.45) !important;
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.3), 0 15px 40px rgba(0, 0, 0, 0.7) !important;
}

/* 2-Column Infographic Grid (Delimited & Aligned System) */
.tech-infographic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  align-items: stretch;
}

.tech-info-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  border-radius: 1.5rem;
  border: 1px solid rgba(0, 242, 254, 0.4);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 242, 254, 0.2);
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.95), rgba(2, 10, 26, 0.98));
}

.tech-info-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 242, 254, 0.4);
}

.tech-info-img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  object-position: center center;
  border-radius: 1rem;
}

.tech-info-footer {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
}

/* Demonstration Video Section Styles */
.video-wrapper-box {
  max-width: 720px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.video-container {
  position: relative;
  width: 100%;
  border-radius: 1.25rem;
  background: #020a1c;
  border: 1px solid rgba(0, 242, 254, 0.4);
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 242, 254, 0.2);
  overflow: hidden;
  padding: 0.5rem;
}

.video-element {
  width: 100%;
  height: auto;
  max-height: 420px;
  border-radius: 0.9rem;
  display: block;
  object-fit: contain;
  background: #000;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.max-w-600 {
  max-width: 600px;
}

/* ==========================================================================
   img018 Inspired Ocean Water & Laser Border System (UI/UX Pro Max)
   ========================================================================== */

/* 1. Oceanic Background & Mobile-Safe Pristine Fluid System (UI/UX Pro Max 60fps GPU System) */
body {
  background-color: #020916;
  min-height: 100vh;
  position: relative;
  color: var(--text-main);
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #020916 url('images/pristine_fluid_bg.png') no-repeat center center;
  background-size: cover;
  z-index: -2;
  pointer-events: none;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.bg-dark-section {
  background: linear-gradient(180deg, rgba(3, 12, 30, 0.65) 0%, rgba(6, 22, 50, 0.85) 50%, rgba(3, 12, 30, 0.65) 100%);
  border-top: 1px solid rgba(0, 242, 254, 0.18);
  border-bottom: 1px solid rgba(0, 242, 254, 0.18);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

@media (max-width: 768px) {
  body::before {
    background-image: radial-gradient(circle at 50% 20%, rgba(0, 102, 255, 0.28) 0%, rgba(2, 9, 22, 0.96) 80%), url('images/pristine_fluid_bg.png');
    background-size: cover;
  }
}

/* Karpathy First-Principles Waterfall Physics Canvas */
#waterfall-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 2;
  opacity: 0.75;
}

/* Water Ripple Animated Overlay & Caustics Shimmer */
.water-ripple-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  background: 
    radial-gradient(circle at 30% 20%, rgba(0, 242, 254, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 70% 80%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
  opacity: 0.85;
}

.water-ripple-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.05) 12%, transparent 12.5%);
  background-size: 60px 60px;
  animation: rippleDrift 18s linear infinite;
  opacity: 0.6;
}

@keyframes oceanCausticsWave {
  0% {
    transform: rotate(0deg) scale(1) translate(0, 0);
    opacity: 0.7;
  }
  50% {
    transform: rotate(2deg) scale(1.08) translate(-15px, 20px);
    opacity: 0.95;
  }
  100% {
    transform: rotate(-2deg) scale(1.03) translate(20px, -15px);
    opacity: 0.7;
  }
}

@keyframes rippleDrift {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 120px 240px;
  }
}

/* 2. Laser Border Container & Card System */
.laser-image-card {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  background: rgba(5, 16, 38, 0.9);
  border: 1px solid rgba(0, 242, 254, 0.45);
  box-shadow: 
    0 0 25px rgba(0, 242, 254, 0.3),
    0 0 50px rgba(0, 102, 255, 0.2),
    inset 0 0 20px rgba(0, 242, 254, 0.12);
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.laser-image-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 1.6rem;
  background: linear-gradient(135deg, #00F2FE, #0066FF, #00FFD1, #00F2FE);
  background-size: 300% 300%;
  z-index: -1;
  animation: laserGradientSpin 6s linear infinite;
  opacity: 0.85;
}

@keyframes laserGradientSpin {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.laser-image-preview {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 1rem;
  transition: transform 0.5s ease;
  filter: drop-shadow(0 0 20px rgba(0, 242, 254, 0.35));
}

.laser-image-card:hover .laser-image-preview {
  transform: scale(1.02);
}

.laser-badge-floating {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(2, 10, 26, 0.92);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 0.45rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.5);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.laser-layer-description-bar {
  width: 100%;
  margin-top: 1rem;
  background: rgba(3, 14, 34, 0.95);
  border: 1px solid rgba(0, 242, 254, 0.35);
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
  text-align: left;
}

/* 3. Laser Button Glow for Step Selector */
.filter-step-btn {
  position: relative;
  transition: all 0.3s ease;
}

.filter-step-btn.active {
  border-color: var(--accent-cyan) !important;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.18), rgba(0, 102, 255, 0.25)) !important;
  box-shadow: 
    0 0 25px rgba(0, 242, 254, 0.4),
    inset 0 0 12px rgba(0, 242, 254, 0.25) !important;
}

.filter-step-btn.active .step-num {
  background: linear-gradient(135deg, #00F2FE, #0066FF) !important;
  color: #fff !important;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.7) !important;
}

/* Laser Glass Cards */
.glass-card {
  border: 1px solid rgba(0, 242, 254, 0.2);
  box-shadow: 0 10px 30px rgba(2, 9, 22, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.glass-card:hover {
  border-color: rgba(0, 242, 254, 0.55);
  box-shadow: 
    0 15px 35px rgba(0, 0, 0, 0.5),
    0 0 30px rgba(0, 242, 254, 0.3);
}

/* Responsive Language Switcher Control */
.lang-switcher-box {
  display: inline-flex;
  align-items: center;
  background: rgba(2, 10, 26, 0.7);
  border: 1px solid rgba(0, 242, 254, 0.3);
  padding: 0.2rem;
  border-radius: 9999px;
  gap: 0.15rem;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.lang-btn.active {
  background: linear-gradient(135deg, #0066FF, #00F2FE);
  color: #fff;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
}

/* Responsive queries */
@media (max-width: 1024px) {
  .nav-wrapper {
    height: auto;
    padding: 0.75rem 0;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
  }
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }
  .nav-links a {
    font-size: 0.85rem;
  }
  .hero-grid { grid-template-columns: 1fr; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); gap: 0.85rem; }
  .bento-grid .glass-card:nth-child(1) { grid-column: span 1; }
  .bento-grid .glass-card:nth-child(2) { grid-column: span 1; }
  .bento-grid .glass-card:nth-child(3) { grid-column: span 2; }
  .filter-visualizer { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 0.4rem;
    -webkit-overflow-scrolling: touch;
  }
  .btn-nav-action {
    display: none;
  }
}

/* ==========================================================================
   Medical & Magnetic Safety Warning Banner (UI/UX Pro Max)
   ========================================================================== */
.section-padding-sm {
  padding: 40px 0;
  position: relative;
  z-index: 5;
}

.safety-alert-banner {
  background: linear-gradient(135deg, rgba(28, 16, 4, 0.95), rgba(12, 6, 2, 0.98)) !important;
  border: 1px solid rgba(255, 171, 0, 0.5) !important;
  border-left: 6px solid #FFAB00 !important;
  border-radius: 1.25rem !important;
  padding: 1.5rem 1.75rem !important;
  box-shadow: 
    0 15px 35px rgba(0, 0, 0, 0.8),
    0 0 25px rgba(255, 171, 0, 0.2) !important;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
}

.safety-alert-banner:hover {
  border-color: #FFAB00 !important;
  box-shadow: 
    0 20px 45px rgba(0, 0, 0, 0.9),
    0 0 35px rgba(255, 171, 0, 0.35) !important;
  transform: translateY(-2px);
}

.safety-alert-header {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  margin-bottom: 0.75rem;
}

.safety-icon-box {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 0.85rem;
  background: rgba(255, 171, 0, 0.15);
  border: 1px solid rgba(255, 171, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFAB00;
  box-shadow: 0 0 15px rgba(255, 171, 0, 0.3);
}

.safety-warning-badge {
  display: inline-block;
  background: rgba(255, 171, 0, 0.18);
  border: 1px solid rgba(255, 171, 0, 0.5);
  color: #FFAB00;
  padding: 0.2rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.safety-title {
  color: #FFFFFF;
  font-size: 1.2rem;
  font-weight: 800;
  font-family: var(--font-luxury);
  margin: 0;
}

.safety-desc {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

/* Footer Legal & INDECOPI Container System */
.footer-legal-container {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-indecopi-box {
  background: rgba(4, 15, 38, 0.75);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 1.25rem;
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.25rem;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 229, 255, 0.1);
  text-align: center;
}

.indecopi-box-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 0.6rem;
  text-align: center;
}

.indecopi-box-text {
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 auto;
  max-width: 920px;
  text-align: center;
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
}

.footer-rights-text {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0;
}

@media (max-width: 768px) {
  .safety-alert-header {
    flex-direction: row;
    align-items: center;
    gap: 0.85rem;
  }
  .footer-bottom-bar {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ==========================================================================
   Certifications Grid, FAQ Accordion & Testimonial Avatars (UI/UX Pro Max)
   ========================================================================== */

/* 1. Certifications & Endorsements Grid */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.cert-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.94), rgba(2, 10, 26, 0.98)) !important;
  border: 1px solid rgba(0, 242, 254, 0.35) !important;
  padding: 1.75rem 1.25rem !important;
}

.cert-icon-box {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.25rem auto;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
}

/* 2. Testimonial Avatars */
.testimonial-user-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1rem;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  object-fit: cover;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
}

/* 3. FAQ Accordion System */
.faq-accordion {
  max-width: 850px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  padding: 0 !important;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 1.25rem 1.5rem;
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-luxury);
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-cyan);
}

.faq-icon {
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 1.5rem 1.5rem 1.5rem;
}

/* ==========================================================================
   Click-to-Enlarge Fast Lightbox System (UI/UX Pro Max Zero-Lag)
   ========================================================================== */
.clickable-img-zoom {
  cursor: pointer !important;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease !important;
}

.clickable-img-zoom:hover {
  transform: scale(1.02) !important;
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.45), 0 15px 35px rgba(0, 0, 0, 0.8) !important;
}

.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(2, 9, 22, 0.96);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 1rem;
}

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

.lightbox-fast-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 10002;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.4);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lightbox-fast-close:hover {
  background: var(--accent-cyan);
  color: #000;
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.6);
}

.lightbox-viewport {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 2rem 1rem;
}

.lightbox-img-full {
  max-width: 95vw;
  max-height: 88vh;
  object-fit: contain;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: zoom-in;
  border-radius: 1rem;
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 35px rgba(0, 242, 254, 0.3);
  transform-origin: center center;
}

.lightbox-img-full.zoomed-in {
  transform: scale(1.4);
  cursor: zoom-out;
}

.lightbox-footer-tip {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.82rem;
  background: rgba(6, 18, 42, 0.85);
  border: 1px solid rgba(0, 242, 254, 0.3);
  padding: 0.45rem 1.25rem;
  border-radius: 9999px;
  position: absolute;
  bottom: 1.25rem;
  pointer-events: none;
}

/* ==========================================================================
   Hero Photo 1 Water Whirlpool Laser Border Frame (UI/UX Pro Max)
   ========================================================================== */
.hero-showcase-box {
  position: relative;
  z-index: 5;
}

.hero-water-laser-frame {
  position: relative;
  border-radius: 2rem;
  padding: 10px;
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.95), rgba(2, 10, 26, 0.98));
  overflow: hidden;
  cursor: default;
  box-shadow: 
    0 20px 50px rgba(0, 0, 0, 0.8),
    0 0 35px rgba(0, 242, 254, 0.35);
  animation: heroFloatBounce 6s ease-in-out infinite alternate;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.hero-water-laser-frame:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 
    0 30px 65px rgba(0, 0, 0, 0.9),
    0 0 55px rgba(0, 242, 254, 0.6);
}

/* Water Whirlpool Swirling Laser Ring */
.laser-vortex-ring {
  position: absolute;
  inset: -50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(0, 242, 254, 0.9) 90deg,
    transparent 180deg,
    rgba(0, 102, 255, 0.9) 270deg,
    transparent 360deg
  );
  animation: waterWhirlpoolRotate 8s linear infinite;
  z-index: 1;
  opacity: 0.85;
}

.laser-vortex-ring.inner-ring {
  animation: waterWhirlpoolRotate 5s linear infinite reverse;
  opacity: 0.5;
  filter: blur(15px);
}

.hero-water-laser-frame::after {
  content: '';
  position: absolute;
  inset: 4px;
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.95), rgba(2, 10, 26, 0.98));
  border-radius: 1.75rem;
  z-index: 2;
}

.hero-product-img {
  position: relative;
  z-index: 3;
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 1.5rem;
  display: block;
  transition: transform 0.4s ease;
}

.hero-water-laser-frame:hover .hero-product-img {
  transform: scale(1.04);
}

.hero-img-overlay-tip {
  position: absolute;
  bottom: 18px;
  right: 18px;
  z-index: 4;
  background: rgba(6, 18, 42, 0.88);
  border: 1px solid rgba(0, 242, 254, 0.5);
  color: var(--accent-cyan);
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
  backdrop-filter: blur(10px);
}

/* Animations */
@keyframes waterWhirlpoolRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes heroFloatBounce {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-12px); }
}

.hero-quote-banner {
  background: linear-gradient(135deg, rgba(6, 18, 42, 0.94), rgba(2, 10, 26, 0.98));
  border: 1px solid rgba(0, 242, 254, 0.45);
  border-radius: 1.25rem;
  padding: 1rem 1.25rem;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.25);
  text-align: center;
  backdrop-filter: blur(15px);
}

.hero-quote-text {
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
  font-family: var(--font-luxury);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

/* ==========================================================================
   PREMIUM MOBILE-FIRST RESPONSIVE SYSTEM v2 (UI/UX Pro Max)
   Hamburger Menu · iOS Safe Area · Touch UX · Fluid Grids · Reduced Motion
   ========================================================================== */

/* --- 1. Touch-Action Optimization (eliminates 300ms tap delay) --- */
.btn,
.tab-btn,
.category-filter-btn,
.lang-btn,
.banner-zoom-btn,
.banner-zoom-trigger,
.faq-question,
.filter-step-card,
.glass-card {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* --- 2. Hamburger Menu Button (hidden on desktop) --- */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: rgba(0, 242, 254, 0.06);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: 0.6rem;
  cursor: pointer;
  padding: 0.5rem 0.6rem;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  z-index: 1001;
  min-width: 44px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}

.hamburger-btn:hover,
.hamburger-btn[aria-expanded="true"] {
  background: rgba(0, 242, 254, 0.14);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.25);
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 4px;
  transition: transform 0.32s cubic-bezier(0.23, 1, 0.32, 1),
              opacity 0.2s ease,
              width 0.3s ease;
  transform-origin: center;
}

/* Animate to X */
.hamburger-btn[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-btn[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}
.hamburger-btn[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- 3. Mobile Nav Drawer --- */
#mobile-nav {
  /* Desktop: visible inline */
  display: contents;
}

/* --- 4. iOS Safe Area Support (notch, Dynamic Island, gesture bar) --- */
.whatsapp-float {
  bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
  right: calc(2rem + env(safe-area-inset-right, 0px));
}

.header-sticky {
  padding-top: env(safe-area-inset-top, 0px);
}

/* --- 5. Accessibility: Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.15ms !important;
    scroll-behavior: auto !important;
  }
  .laser-vortex-ring,
  .water-ripple-bg {
    display: none !important;
  }
  #waterfall-canvas {
    opacity: 0 !important;
    pointer-events: none !important;
  }
  body {
    animation: none !important;
    background-position: center center !important;
  }
  .hero-water-laser-frame {
    animation: none !important;
  }
}

/* ======================================================
   6. TABLET BREAKPOINT (≤ 768px) — Core Mobile Layout
   ====================================================== */
@media (max-width: 768px) {

  /* Mobile High Performance Optimizations (UI/UX Pro Max 60fps System) */
  section[id],
  #alcaline-max,
  #tecnologias,
  #demostracion,
  #cotizador,
  #testimonios,
  #faq {
    content-visibility: auto;
    contain-intrinsic-size: 1px 700px;
    scroll-margin-top: 85px !important;
  }

  .glass-card,
  .calculator-box,
  .safety-alert-banner,
  .filter-step-card {
    background: rgba(6, 16, 36, 0.96) !important;
    -webkit-backdrop-filter: blur(4px) !important;
    backdrop-filter: blur(4px) !important;
  }

  .header-sticky {
    background: rgba(4, 9, 20, 0.95);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }

  .brand-logo-img {
    height: 32px !important;
    max-height: 34px !important;
  }

  .brand-logo {
    font-size: 1.05rem !important;
    gap: 0.45rem !important;
  }

  .laser-vortex-ring.inner-ring {
    display: none !important;
  }

  .hero-water-laser-frame {
    animation: none !important;
  }

  /* Hamburger visible, hide desktop quote btn on mobile top bar */
  .hamburger-btn {
    display: inline-flex !important;
  }
  .btn-nav-action {
    display: none !important;
  }

  /* Nav drawer: full-width slide-down panel */
  #mobile-nav {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(3, 8, 18, 0.97);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-glass);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 998;
    /* Ensure it spans full header width */
    width: 100vw;
    margin-left: calc(-50vw + 50%);
  }

  #mobile-nav.open {
    max-height: 480px;
  }

  /* Nav link list: vertical, full-touch targets */
  #mobile-nav .nav-links {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0 1.5rem 0;
    border-top: none;
    width: 100%;
    overflow-x: hidden;
    justify-content: flex-start;
  }

  #mobile-nav .nav-links li {
    width: 100%;
  }

  #mobile-nav .nav-links a {
    display: flex;
    align-items: center;
    padding: 0.9rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    min-height: 52px; /* Touch target ≥ 44pt per HIG */
    transition: padding-left 0.2s ease, background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
  }

  #mobile-nav .nav-links a:hover,
  #mobile-nav .nav-links a:active {
    background: rgba(0, 242, 254, 0.07);
    color: var(--accent-cyan);
    padding-left: 2.25rem;
  }

  /* Mobile nav CTA button inside drawer */
  #mobile-nav::after {
    content: '';
    display: block;
    height: 1rem;
  }

  /* Nav wrapper: keep brand + lang + hamburger in one clean row on mobile */
  .nav-wrapper {
    position: relative;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 0.25rem !important;
    height: 60px !important;
    padding: 0 !important;
    width: 100% !important;
  }

  /* Brand Logo: compact on mobile */
  .brand-logo {
    order: 1 !important;
    font-size: 0.92rem !important;
    white-space: nowrap !important;
    letter-spacing: -0.02em !important;
  }

  .flex-center-gap {
    order: 2 !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.35rem !important;
  }

  .hamburger-btn {
    order: 3 !important;
    display: inline-flex !important;
  }

  .lang-switcher-box {
    padding: 2px !important;
    gap: 2px !important;
    background: rgba(4, 15, 38, 0.85) !important;
    border: 1px solid rgba(0, 242, 254, 0.3) !important;
    border-radius: 9999px !important;
    display: inline-flex !important;
    align-items: center !important;
    flex-shrink: 0 !important;
  }

  .lang-btn {
    font-size: 0.7rem !important;
    padding: 0.22rem 0.45rem !important;
    min-height: 28px !important;
    border-radius: 9999px !important;
    font-weight: 700 !important;
    line-height: 1 !important;
  }

  /* Hero section: reduce top padding for mobile */
  .hero-section {
    padding-top: 110px;
    padding-bottom: 55px;
  }

  /* Hero title mobile typography */
  h1.hero-title {
    font-size: clamp(1.7rem, 6.8vw, 2.6rem) !important;
    line-height: 1.18 !important;
    letter-spacing: -0.015em !important;
    margin-bottom: 0.85rem !important;
    text-wrap: balance !important;
    word-break: normal !important;
  }

  /* Section headers mobile typography */
  .section-header-box {
    margin-bottom: 2rem !important;
    padding: 0 0.5rem !important;
  }

  .section-header-box-sm {
    margin-bottom: 1.5rem !important;
    padding: 0 0.5rem !important;
  }

  .section-header-box h1,
  .section-header-box h2,
  .section-header-box-sm h1,
  .section-header-box-sm h2,
  .fs-250 {
    font-size: clamp(1.3rem, 5vw, 1.8rem) !important;
    line-height: 1.22 !important;
    letter-spacing: -0.015em !important;
    margin-top: 0.5rem !important;
    margin-bottom: 0.35rem !important;
    font-family: var(--font-luxury) !important;
    text-wrap: balance !important;
    word-break: normal !important;
  }

  .section-header-box p,
  .section-header-box-sm p {
    font-size: 0.84rem !important;
    line-height: 1.45 !important;
    color: var(--text-muted) !important;
    margin: 0.35rem auto 0 auto !important;
    padding: 0 0.35rem !important;
    text-wrap: pretty !important;
  }

  .badge-tag {
    font-size: 0.68rem !important;
    padding: 0.22rem 0.65rem !important;
    letter-spacing: 0.04em !important;
    line-height: 1.3 !important;
    white-space: normal !important;
    display: inline-block !important;
    max-width: 95% !important;
  }

  /* Hero stats: Perfectly centered 3-column mobile layout (UI/UX Pro Max) */
  .hero-stats {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 0.5rem !important;
    text-align: center !important;
    margin-top: 1.75rem !important;
    padding-top: 1.25rem !important;
    width: 100% !important;
  }

  .stat-item {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: flex-start !important;
    text-align: center !important;
    position: relative;
    padding: 0 0.15rem !important;
  }

  .stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 15%;
    height: 70%;
    width: 1px;
    background: rgba(0, 242, 254, 0.25);
  }

  .stat-item h4 {
    font-size: clamp(1.2rem, 4.8vw, 1.55rem) !important;
    text-align: center !important;
    margin-bottom: 0.2rem !important;
    line-height: 1.1 !important;
    width: 100% !important;
  }

  .stat-item p {
    font-size: 0.74rem !important;
    line-height: 1.25 !important;
    text-align: center !important;
    margin: 0 auto !important;
    color: rgba(255, 255, 255, 0.8) !important;
    width: 100% !important;
  }

  /* Hero buttons: stack vertically on mobile */
  .hero-section .flex-wrap-gap {
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero-section .flex-wrap-gap .btn {
    width: 100%;
    justify-content: center;
  }

  /* Hero laser frame: constrain size on mobile */
  .hero-water-laser-frame {
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-product-img {
    max-height: 300px;
  }

  /* Hero quote banner font */
  .hero-quote-text {
    font-size: 0.88rem;
  }

  /* Glass card padding scale-down */
  .glass-card {
    padding: 1.5rem;
    border-radius: 1.25rem;
  }

  /* Compact Sleek 5-Layer Filter Step Cards on Mobile */
  .filter-grid-5layers {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.65rem !important;
  }

  .filter-step-card {
    padding: 0.75rem 0.8rem !important;
    gap: 0.6rem !important;
    border-radius: 0.9rem !important;
    border-left: 4px solid var(--accent-cyan) !important;
  }

  .filter-step-card .step-num {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    font-size: 0.85rem !important;
  }

  .filter-step-card h4 {
    font-size: 0.82rem !important;
    line-height: 1.25 !important;
    margin-bottom: 0.25rem !important;
  }

  .filter-step-card p {
    font-size: 0.73rem !important;
    line-height: 1.35 !important;
    opacity: 0.9;
  }

  /* Infographic Cards on Mobile: 1 Column Full Width for High Definition Legibility */
  .tech-infographic-grid {
    grid-template-columns: 1fr !important;
    gap: 1.25rem !important;
  }

  .tech-info-card {
    padding: 0.75rem !important;
    border-radius: 1.25rem !important;
    border: 1px solid rgba(0, 242, 254, 0.45) !important;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 242, 254, 0.25) !important;
  }

  .tech-info-img {
    max-height: none !important;
    height: auto !important;
    width: 100% !important;
    object-fit: contain !important;
    border-radius: 0.85rem !important;
  }

  /* Category Filter Sliding Pill Bar on Mobile (UI/UX Pro Max Native App UX) */
  .calculator-box {
    padding: 1.15rem 0.75rem !important;
    border-radius: 1.25rem !important;
  }

  .calculator-box .flex-between-center {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    margin-bottom: 1.15rem !important;
  }

  .calculator-box .flex-wrap-gap {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    padding: 0.15rem 0.2rem 0.55rem 0.2rem !important;
    gap: 0.5rem !important;
    width: 100% !important;
  }

  .calculator-box .flex-wrap-gap::-webkit-scrollbar {
    display: none !important;
  }

  .category-filter-btn {
    white-space: nowrap !important;
    font-size: 0.78rem !important;
    font-weight: 700 !important;
    padding: 0.45rem 0.9rem !important;
    flex-shrink: 0 !important;
    border-radius: 9999px !important;
  }

  .btn-currency {
    align-self: flex-end;
    font-size: 0.78rem;
    padding: 0.35rem 0.85rem;
  }

  /* Product grid: 2 columns side-by-side on mobile (Zero Overflow Layout) */
  .product-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.65rem !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .product-card {
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    padding: 0.7rem 0.55rem !important;
    border-radius: 1rem !important;
    background: linear-gradient(145deg, rgba(8, 22, 50, 0.92), rgba(4, 12, 30, 0.98)) !important;
    border: 1px solid rgba(0, 242, 254, 0.25) !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.55), 0 0 10px rgba(0, 242, 254, 0.06) !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .product-image-box {
    height: 140px !important;
    max-height: 140px !important;
    background: radial-gradient(circle at center, rgba(14, 34, 72, 0.55) 0%, rgba(3, 10, 26, 0.95) 100%) !important;
    border: 1px solid rgba(0, 242, 254, 0.18) !important;
    border-radius: 0.75rem !important;
    width: 100% !important;
    overflow: hidden !important;
    position: relative !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  .product-img {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    padding: 0.35rem !important;
  }

  .product-img-badge {
    position: absolute !important;
    top: 0.3rem !important;
    left: 0.3rem !important;
    z-index: 5 !important;
    font-size: 0.56rem !important;
    font-weight: 700 !important;
    padding: 0.12rem 0.4rem !important;
    border-radius: 4px !important;
    background: rgba(3, 10, 26, 0.9) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    backdrop-filter: blur(8px) !important;
    border: 1px solid rgba(0, 242, 254, 0.35) !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.6) !important;
    pointer-events: none !important;
    letter-spacing: 0.02em !important;
    white-space: nowrap !important;
    max-width: calc(100% - 0.6rem) !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1.2 !important;
    text-transform: uppercase !important;
  }

  .product-card h3 {
    font-size: 0.82rem !important;
    font-weight: 700 !important;
    line-height: 1.25 !important;
    margin-top: 0.35rem !important;
    margin-bottom: 0.2rem !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    min-height: 2.5em !important;
  }

  .product-card p {
    font-size: 0.68rem !important;
    line-height: 1.25 !important;
    color: var(--text-muted) !important;
    margin-bottom: 0.35rem !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    min-height: 2.5em !important;
  }

  .price-tag.quote-tag {
    font-size: 0.7rem !important;
    font-weight: 700 !important;
    color: var(--accent-cyan) !important;
    margin-bottom: 0.35rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.25rem !important;
    background: rgba(0, 102, 255, 0.12) !important;
    padding: 0.2rem 0.35rem !important;
    border-radius: 6px !important;
    border: 1px solid rgba(0, 102, 255, 0.25) !important;
    white-space: nowrap !important;
  }

  .btn-view-benefits {
    font-size: 0.62rem !important;
    font-weight: 700 !important;
    padding: 0.3rem 0.4rem !important;
    margin-bottom: 0.4rem !important;
    min-height: 28px !important;
    border-radius: 6px !important;
    width: 100% !important;
    background: rgba(0, 242, 254, 0.08) !important;
    border: 1px solid rgba(0, 242, 254, 0.3) !important;
    color: var(--accent-cyan) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.25rem !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  .select-item-btn .btn-text-full {
    display: none !important;
  }
  .select-item-btn .btn-text-short {
    display: inline !important;
  }

  .select-item-btn {
    font-size: 0.76rem !important;
    font-weight: 700 !important;
    padding: 0.45rem 0.5rem !important;
    min-height: 34px !important;
    border-radius: 9999px !important;
    width: 100% !important;
    white-space: nowrap !important;
    justify-content: center !important;
    gap: 0.3rem !important;
    display: flex !important;
    align-items: center !important;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%) !important;
    color: #FFFFFF !important;
    border: none !important;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35) !important;
  }

  /* Testimonials: Horizontal Touch Slider Carousel on Mobile */
  .testimonial-swipe-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-top: -0.5rem;
    margin-bottom: 1.25rem;
    opacity: 0.9;
  }

  .testimonial-grid {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    scroll-snap-type: x mandatory !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 0.85rem !important;
    padding-bottom: 0.65rem !important;
    margin-bottom: 1.25rem !important;
  }

  .testimonial-grid::-webkit-scrollbar {
    display: none;
  }

  .testimonial-grid .glass-card {
    flex: 0 0 86% !important;
    min-width: 86% !important;
    scroll-snap-align: center !important;
    padding: 1.25rem 1.1rem !important;
    border-radius: 1.25rem !important;
  }

  .testimonial-disclaimer {
    padding: 1rem 1.15rem !important;
    font-size: 0.82rem !important;
    line-height: 1.55 !important;
    margin-top: 1.25rem !important;
  }

  /* Certifications: Horizontal Touch Swipe Carousel Layout on Mobile */
  .cert-grid {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    scroll-snap-type: x mandatory !important;
    -webkit-overflow-scrolling: touch !important;
    gap: 1.1rem !important;
    padding: 0.5rem 0.25rem 1.5rem 0.25rem !important;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .cert-grid::-webkit-scrollbar {
    display: none;
  }

  .cert-card {
    flex: 0 0 84% !important;
    min-width: 260px !important;
    max-width: 320px !important;
    scroll-snap-align: center !important;
    scroll-snap-stop: always !important;
    padding: 1.5rem 1.15rem !important;
    border-radius: 1.25rem !important;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease !important;
  }

  .cert-card:active {
    transform: scale(0.98);
  }

  .cert-icon-box {
    width: 48px;
    height: 48px;
    margin-bottom: 0.85rem;
  }

  /* Calculator box */
  .calculator-box {
    padding: 1.5rem;
    border-radius: 1.5rem;
  }

  /* Section spacing */
  .section-padding {
    padding: 65px 0;
  }

  /* FAQ answer max-height larger for mobile text */
  .faq-item.active .faq-answer {
    max-height: 320px;
  }

  /* Lightbox: simplified for mobile */
  .lightbox-header-bar {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .lightbox-footer-tip {
    display: none;
  }

  /* Banner zoom box */
  .banner-zoom-box {
    border-radius: 1.25rem;
  }

  /* Safety alert banner */
  .safety-alert-banner {
    padding: 1.5rem 1.25rem;
  }
}

/* ======================================================
   7. SMALL PHONE BREAKPOINT (≤ 480px) — iPhone SE, etc.
   ====================================================== */
@media (max-width: 480px) {

  .container {
    padding: 0 1rem;
  }

  /* 5-Layer Filter Step Cards on Small Phones */
  .filter-grid-5layers {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }

  .filter-step-card {
    padding: 0.65rem 0.6rem !important;
    gap: 0.5rem !important;
    border-radius: 0.8rem !important;
  }

  .filter-step-card .step-num {
    width: 28px !important;
    height: 28px !important;
    min-width: 28px !important;
    font-size: 0.78rem !important;
  }

  .filter-step-card h4 {
    font-size: 0.78rem !important;
    line-height: 1.2 !important;
    margin-bottom: 0.2rem !important;
  }

  .filter-step-card p {
    font-size: 0.7rem !important;
    line-height: 1.3 !important;
  }

  /* Fluid heading scale */
  h1.hero-title {
    font-size: clamp(1.9rem, 8vw, 2.75rem);
  }

  h2 {
    font-size: clamp(1.45rem, 6vw, 2.25rem);
  }

  h3 {
    font-size: clamp(1.05rem, 4.5vw, 1.5rem);
  }

  .hero-subtitle {
    font-size: 0.98rem;
  }

  .hero-pill {
    font-size: 0.76rem;
  }

  .hero-stats {
    gap: 0.85rem;
  }

  .stat-item h4 {
    font-size: 1.35rem;
  }

  /* Cert grid horizontal swipe tuning for tiny screens */
  .cert-card {
    flex: 0 0 88% !important;
  }

  /* Bento Grid 2-column mobile layout */
  .bento-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.65rem !important;
  }
  .bento-grid .glass-card:nth-child(1) {
    grid-column: span 1 !important;
  }
  .bento-grid .glass-card:nth-child(2) {
    grid-column: span 1 !important;
  }
  .bento-grid .glass-card:nth-child(3) {
    grid-column: span 2 !important;
  }

  .bento-grid .glass-card {
    padding: 0.85rem 0.75rem !important;
  }

  .bento-grid .flex-center-gap {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.35rem !important;
  }

  .bento-grid h3 {
    font-size: 0.88rem !important;
    line-height: 1.25 !important;
    margin-top: 0.2rem !important;
    margin-bottom: 0.3rem !important;
  }

  .bento-grid p {
    font-size: 0.76rem !important;
    line-height: 1.35 !important;
    margin-bottom: 0.4rem !important;
  }

  .bento-icon-blue,
  .bento-icon-green,
  .bento-icon-gold {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    border-radius: 0.55rem !important;
  }

  /* Section header spacing */
  .section-header-box {
    margin-bottom: 2.25rem;
  }
  .section-header-box-sm {
    margin-bottom: 1.75rem;
  }

  /* Tab group: wrap on tiny screens */
  .tab-group {
    border-radius: 1rem;
    flex-wrap: wrap;
    padding: 0.3rem;
  }

  .tab-btn {
    font-size: 0.82rem;
    padding: 0.55rem 0.8rem;
    border-radius: 0.75rem;
  }

  /* Filter step cards 2-column mobile layout */
  .filter-grid-5layers {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.65rem !important;
  }

  .filter-grid-5layers .filter-step-card:last-child {
    grid-column: span 2 !important;
  }

  .filter-step-card {
    padding: 0.8rem 0.7rem !important;
    gap: 0.5rem !important;
    flex-direction: column !important;
    align-items: flex-start !important;
  }

  .filter-step-card .step-num {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    font-size: 0.9rem !important;
  }

  .filter-step-card h4 {
    font-size: 0.88rem !important;
    line-height: 1.25 !important;
    margin-bottom: 0.2rem !important;
  }

  .filter-step-card p {
    font-size: 0.76rem !important;
    line-height: 1.35 !important;
  }

  /* FAQ */
  .faq-question {
    font-size: 0.95rem;
    padding: 1rem 1.1rem;
  }

  /* Lightbox controls */
  .lightbox-zoom-controls {
    padding: 0.4rem 0.65rem;
    gap: 0.4rem;
  }

  .lightbox-btn {
    width: 32px;
    height: 32px;
  }

  .zoom-badge {
    font-size: 0.78rem;
  }

  /* Section padding */
  .section-padding {
    padding: 50px 0;
  }

  /* Product grid: 2 columns side-by-side on small phones */
  .product-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }

  .product-card {
    padding: 0.6rem 0.45rem !important;
  }

  .product-image-box {
    height: 130px !important;
  }

  .product-card h3 {
    font-size: 0.8rem !important;
    line-height: 1.2 !important;
  }

  .price-tag.quote-tag {
    font-size: 0.68rem !important;
  }

  /* Language switcher compact */
  .lang-btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
  }

  /* Hero showcase: smaller */
  .hero-water-laser-frame {
    max-width: 300px;
  }

  .hero-product-img {
    max-height: 250px;
  }

  /* Safety banner */
  .safety-alert-banner {
    padding: 1.25rem 1rem;
    border-radius: 1rem;
    border-left-width: 4px;
  }

  .safety-title {
    font-size: 1.1rem;
  }

  .safety-desc {
    font-size: 0.92rem;
  }
}

/* ======================================================
   8. LANDSCAPE PHONE MODE — Optimized for Rotated View
   ====================================================== */
@media (max-width: 812px) and (orientation: landscape) {

  .hero-section {
    padding-top: 90px;
    padding-bottom: 40px;
  }

  .hero-water-laser-frame {
    max-height: 240px;
  }

  .hero-product-img {
    max-height: 200px;
  }

  /* Reduce waterfall opacity in landscape for performance */
  #waterfall-canvas {
    opacity: 0.45;
  }

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

/* ======================================================
   9. FOCUS STATES (Keyboard / Accessibility A11Y)
   ====================================================== */
.btn:focus-visible,
.tab-btn:focus-visible,
.category-filter-btn:focus-visible,
.lang-btn:focus-visible,
.faq-question:focus-visible,
.hamburger-btn:focus-visible,
.filter-step-card:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(0, 242, 254, 0.2);
}

/* ==========================================================================
   10. SENIOR FRONTEND AUDIT: BENTO GRID, STICKY CTA DOCK & ANDROID UX
   ========================================================================== */

/* --- A. Bento Grid Layout for Biohacking Technologies --- */
.bento-tech-carousel-container {
  width: 100%;
  position: relative;
}

.bento-tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  width: 100%;
}

.bento-tech-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.6rem 1.4rem;
  border-radius: 20px !important;
  background: linear-gradient(145deg, #030F26, #0A192F) !important;
  border: 1px solid rgba(0, 229, 255, 0.25) !important;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 229, 255, 0.15) !important;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  text-align: left;
}

.bento-tech-card:hover {
  transform: translateY(-5px);
  border-color: #00E5FF !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9), 0 0 35px rgba(0, 229, 255, 0.35) !important;
}

.bento-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.bento-icon-box {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.bento-icon-box.icon-cyan {
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.4);
  color: #00E5FF;
}

.bento-icon-box.icon-green {
  background: rgba(46, 213, 115, 0.15);
  border: 1px solid rgba(46, 213, 115, 0.4);
  color: #2ed573;
}

.bento-icon-box.icon-gold {
  background: rgba(255, 171, 0, 0.15);
  border: 1px solid rgba(255, 171, 0, 0.4);
  color: #ffab00;
}

.bento-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.65rem;
  color: #FFFFFF;
}

.bento-card-desc {
  font-size: 0.9rem;
  line-height: 1.5;
  color: #D0E6FF;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.bento-card-feat {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.bento-swipe-hint {
  display: none;
}

/* Mobile Responsive Bento Grid Horizontal Carousel (Zero Page Overflow) */
@media (max-width: 768px) {
  .bento-tech-carousel-container {
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
    margin-bottom: 1.5rem;
  }

  .bento-tech-grid {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    scroll-snap-type: x mandatory !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 0.85rem !important;
    padding-bottom: 0.75rem !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .bento-tech-grid::-webkit-scrollbar {
    display: none;
  }

  .bento-tech-card {
    flex: 0 0 84% !important;
    min-width: 84% !important;
    scroll-snap-align: center !important;
    padding: 1.25rem 1.15rem !important;
    border-radius: 20px !important;
  }

  .bento-swipe-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: #00E5FF;
    margin-top: 0.5rem;
    opacity: 0.95;
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
  }
}

/* --- B. Floating Sticky Bottom CTA Dock for Mobile --- */
.sticky-cta-dock {
  display: none;
}

@media (max-width: 768px) {
  body {
    padding-bottom: 76px !important;
  }

  .sticky-cta-dock {
    display: none !important;
  }

  .sticky-cta-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.85rem;
    max-width: 500px;
    margin: 0 auto;
  }

  .sticky-cta-info {
    display: flex;
    flex-direction: column;
    text-align: left;
  }

  .sticky-cta-title {
    color: #FFFFFF;
    font-size: 0.82rem;
    font-weight: 700;
    font-family: var(--font-luxury);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 155px;
  }

  .sticky-cta-price {
    color: #00E5FF;
    font-size: 0.95rem;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
  }

  .sticky-cta-btn {
    min-height: 48px !important;
    min-width: 165px !important;
    padding: 0.6rem 1.1rem !important;
    font-size: 0.88rem !important;
    font-weight: 800 !important;
    background: linear-gradient(135deg, #00E5FF, #0066FF) !important;
    color: #020A1C !important;
    border-radius: 9999px !important;
    box-shadow: 0 0 22px rgba(0, 229, 255, 0.55) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    white-space: nowrap;
    touch-action: manipulation;
  }

  .whatsapp-float {
    bottom: 85px !important; /* Prevents overlap with sticky bottom CTA dock */
  }
}

/* --- C. Android UX Protection & Input Zoom Prevention --- */
input, select, textarea {
  font-size: 16px !important; /* Prevents auto-zoom on Chrome Android */
  touch-action: manipulation;
}

button, a, select, input, .glass-card, .banner-zoom-trigger, .category-filter-btn {
  touch-action: manipulation;
}

/* Minimum 48x48px Touch Target Area (WCAG 2.1 AAA & Android Ergonomics for primary buttons) */
.btn-primary, .btn-whatsapp, .btn-outline, .lightbox-fast-close, .modal-close-btn, .sticky-cta-btn {
  min-height: 48px !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   NATIVE MOBILE APP BOTTOM DOCK (iOS iPhone & Android Ergonomic Dock)
   ========================================================================== */
.mobile-app-dock {
  display: none;
}

@media (max-width: 768px) {
  .mobile-app-dock {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 99999;
    background: rgba(2, 9, 22, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 242, 254, 0.3);
    box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.9), 0 -2px 10px rgba(0, 242, 254, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0.35rem 0.25rem calc(0.35rem + env(safe-area-inset-bottom, 0px)) 0.25rem;
    box-sizing: border-box;
  }

  .dock-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.25rem 0.35rem;
    border-radius: 0.75rem;
    transition: all 0.2s ease;
    flex: 1;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
  }

  .dock-item:hover,
  .dock-item.active {
    color: var(--accent-cyan);
  }

  .dock-item.active .dock-icon {
    transform: translateY(-2px);
    filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.8));
    color: var(--accent-cyan);
  }

  .dock-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.2s ease;
  }

  .dock-item-wa {
    color: #25D366 !important;
  }

  .dock-wa-badge {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25D366, #128C7E);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 0 10px rgba(37, 211, 102, 0.6);
  }

  .dock-icon-wa {
    width: 13px;
    height: 13px;
  }

  /* Padding bottom for mobile body so bottom nav dock doesn't cover page footer content */
  body {
    padding-bottom: calc(65px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .whatsapp-float {
    display: flex !important;
    position: fixed !important;
    bottom: calc(75px + env(safe-area-inset-bottom, 0px)) !important;
    right: 1.25rem !important;
    z-index: 99999 !important;
    width: 52px !important;
    height: 52px !important;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6) !important;
  }
}

/* Quote Tag Styling (Luxury Badge) */
.price-tag.quote-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 9999px;
  color: var(--accent-cyan, #00E5FF);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
  transition: all 0.3s ease;
}

.price-tag.quote-tag:hover {
  background: rgba(0, 242, 254, 0.16);
  border-color: rgba(0, 242, 254, 0.6);
  transform: translateY(-1px);
}

.footer-contact-link {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-contact-link:hover {
  color: var(--accent-cyan, #00E5FF);
  text-decoration: underline;
}

.is-hidden {
  display: none !important;
}