/* ═══════════════════════════════════════════════════════════════
   TIKU GEMS — Premium Diamond Manufacturer Website
   Design System & Styles
   Color palette derived from Tiku Gems logo
   ═══════════════════════════════════════════════════════════════ */

/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500&family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

/* ─── CSS Custom Properties (Design Tokens) ─── */
:root {
  /* Brand Colors — from logo */
  --navy-deep:    #0A1628;
  --navy-primary: #0D1F3C;
  --navy-mid:     #152D54;
  --blue-royal:   #1E5199;
  --blue-brand:   #2874C0;
  --blue-light:   #5DADE2;
  --blue-ice:     #85C1E9;
  --blue-pale:    #D6EAF8;
  --blue-frost:   #EBF5FB;

  /* Neutrals */
  --white:        #FFFFFF;
  --off-white:    #F8FAFE;
  --gray-100:     #E8EDF4;
  --gray-200:     #C5CDD8;
  --gray-400:     #8896A7;
  --gray-600:     #5A6A7E;
  --gray-800:     #2C3E50;

  /* Accents */
  --gold:         #C9A84C;
  --gold-light:   #E8D48B;
  --diamond-white: #F0F4FF;

  /* Gradients */
  --gradient-hero:    linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-primary) 40%, var(--navy-mid) 100%);
  --gradient-blue:    linear-gradient(135deg, var(--blue-royal) 0%, var(--blue-brand) 50%, var(--blue-light) 100%);
  --gradient-gold:    linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  --gradient-glass:   linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
  --gradient-card:    linear-gradient(180deg, rgba(13,31,60,0.95) 0%, rgba(10,22,40,0.98) 100%);

  /* Semantic Theme Tokens (Default Dark Mode) */
  --glass-bg:        rgba(255, 255, 255, 0.03);
  --glass-bg-hover:  rgba(255, 255, 255, 0.06);
  --glass-border:    rgba(255, 255, 255, 0.05);
  --nav-bg:          rgba(10, 22, 40, 0.92);
  --mobile-menu-bg:  rgba(10, 22, 40, 0.98);
  --shadow-color:    rgba(0, 0, 0, 0.3);
  --canvas-glow:     radial-gradient(circle, rgba(21,45,84,0.4) 0%, transparent 70%);
  --hero-overlay:    linear-gradient(135deg, rgba(10,22,40,0.95) 0%, rgba(13,31,60,0.80) 40%, rgba(21,45,84,0.6) 70%, rgba(10,22,40,0.90) 100%);
  --hero-img-opacity: 0.45;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', -apple-system, sans-serif;
  --font-heading: 'Outfit', -apple-system, sans-serif;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Borders & Radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  30px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:    0 2px 8px var(--shadow-color);
  --shadow-md:    0 4px 20px var(--shadow-color);
  --shadow-lg:    0 8px 40px var(--shadow-color);
  --shadow-xl:    0 16px 60px var(--shadow-color);
  --shadow-glow:  0 0 40px rgba(93,173,226,0.15);
  --shadow-gold:  0 0 30px rgba(201,168,76,0.2);

  /* Transitions */
  --ease-smooth:  cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce:  cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-med:  400ms;
  --duration-slow: 600ms;

  /* Layout */
  --max-width:    1280px;
  --nav-height:   80px;
}

/* ─── Light Mode Prefers Color Scheme Overrides ─── */
@media (prefers-color-scheme: light) {
  :root {
    /* Override Neutral Tokens for Light Mode */
    --navy-deep:      #FFFFFF;     /* Primary BG */
    --navy-primary:   #F5F8FC;     /* Secondary BG */
    --navy-mid:       #E1E8F2;     /* Accent/Slightly darker BG */
    --white:          #0C1829;     /* Title/Primary Text */
    --off-white:      #14253D;     /* Subtitle/Secondary Text */
    --gray-100:       #DFE6EE;     /* Border / Dividers */
    --gray-200:       #2C3E50;     /* Body Text */
    --gray-400:       #5A6A7E;     /* Muted Text */
    --gray-600:       #7A8B9E;     /* Muted secondary labels */
    --gray-800:       #EAF0F6;     /* Dark highlight elements */

    /* Gradients */
    --gradient-hero:    linear-gradient(135deg, #F8FAFE 0%, #EBF1F6 50%, #D4E1F1 100%);
    --gradient-card:    linear-gradient(180deg, #FFFFFF 0%, #F5F8FC 100%);
    --gradient-glass:   linear-gradient(135deg, rgba(10,22,40,0.05) 0%, rgba(10,22,40,0.01) 100%);

    /* Theme Semantic Tokens */
    --glass-bg:        rgba(10, 22, 40, 0.02);
    --glass-bg-hover:  rgba(10, 22, 40, 0.05);
    --glass-border:    rgba(10, 22, 40, 0.06);
    --nav-bg:          rgba(255, 255, 255, 0.92);
    --mobile-menu-bg:  rgba(255, 255, 255, 0.98);
    --shadow-color:    rgba(10, 22, 40, 0.08);
    --canvas-glow:     radial-gradient(circle, #DFE6EE 0%, #EDF3FA 100%);
    --hero-overlay:    linear-gradient(135deg, rgba(255,255,255,0.96) 0%, rgba(245,248,252,0.88) 50%, rgba(255,255,255,0.96) 100%);
    --hero-img-opacity: 0.15;
  }

  .hero-diamond-float img {
    border-color: #FFFFFF;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--navy-deep);
  color: var(--gray-200);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--duration-fast) var(--ease-smooth);
}

ul, ol { list-style: none; }

/* ─── Utility Classes ─── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-label::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--gradient-blue);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-400);
  max-width: 640px;
  line-height: 1.8;
}

.text-gradient {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Sparkle Particle Background ─── */
.sparkle-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.sparkle-bg .particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--blue-ice);
  border-radius: 50%;
  opacity: 0;
  animation: sparkle 4s infinite;
}

@keyframes sparkle {
  0%, 100% { opacity: 0; transform: scale(0); }
  50% { opacity: 0.6; transform: scale(1); }
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--duration-med) var(--ease-smooth);
  background: transparent;
}

.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-100);
  box-shadow: 0 4px 30px var(--shadow-color);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  z-index: 1001;
}

.nav-logo img {
  height: 60px;
  width: auto;
  border-radius: var(--radius-sm);
  transition: all var(--duration-med) var(--ease-smooth);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
}

.nav-logo-text .brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  line-height: 1.2;
}

.nav-logo-text .brand-slogan {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-light);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-200);
  letter-spacing: 0.5px;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--duration-fast) var(--ease-smooth);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-blue);
  border-radius: 2px;
  transition: width var(--duration-med) var(--ease-smooth);
}

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

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

.nav-cta {
  font-family: var(--font-heading) !important;
  font-weight: 600 !important;
  padding: 10px 28px !important;
  background: var(--gradient-blue) !important;
  color: var(--white) !important;
  border-radius: var(--radius-full) !important;
  transition: all var(--duration-med) var(--ease-smooth) !important;
  box-shadow: 0 4px 15px rgba(30,81,153,0.3);
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(30,81,153,0.5) !important;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 5px;
}

.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--duration-med) var(--ease-smooth);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy-deep);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: var(--hero-img-opacity);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: var(--space-5xl) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 20px;
  background: rgba(93,173,226,0.1);
  border: 1px solid rgba(93,173,226,0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--blue-light);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-smooth) 0.2s both;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--blue-light);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-smooth) 0.4s both;
}

.hero h1 .line-accent {
  display: block;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--gray-200);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.8s var(--ease-smooth) 0.6s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s var(--ease-smooth) 0.8s both;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-4xl);
  animation: fadeInUp 0.8s var(--ease-smooth) 1s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.hero-stat .number span {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: var(--space-xs);
}

/* Floating diamond decoration */
.hero-diamond-float {
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 380px;
  height: 380px;
  animation: float 6s ease-in-out infinite;
}

.hero-diamond-float img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 40px rgba(93,173,226,0.35));
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-xl);
  transition: all var(--duration-med);
}

@keyframes float {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(calc(-50% - 20px)) translateX(5px); }
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 36px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--duration-med) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-blue);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(30,81,153,0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(30,81,153,0.6);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.6s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  border-color: var(--blue-light);
  background: rgba(93,173,226,0.1);
  transform: translateY(-3px);
}

.btn-gold {
  background: var(--gradient-gold);
  color: var(--navy-deep);
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(201,168,76,0.4);
}

/* ═══════════════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════════════ */
.about {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-images {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.about-img img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-smooth);
}

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

.about-img:first-child {
  grid-row: span 2;
}

.about-img:first-child img {
  height: 100%;
}

.about-img::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(93,173,226,0.1);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.about-text .section-subtitle {
  margin-bottom: var(--space-2xl);
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.about-highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.about-highlight .icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background: rgba(93,173,226,0.1);
  border: 1px solid rgba(93,173,226,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-highlight .icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--blue-light);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.about-highlight h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 2px;
}

.about-highlight p {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.5;
}

/* Experience badge */
.experience-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 120px;
  height: 120px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--navy-deep);
  z-index: 2;
}

.experience-badge .number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.experience-badge .text {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.85);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-align: center;
}

/* ═══════════════════════════════════════════════════════════════
   PRODUCTS SECTION
   ═══════════════════════════════════════════════════════════════ */
.products {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-primary) 50%, var(--navy-deep) 100%);
}

.products-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.products-header .section-subtitle {
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.product-card {
  background: var(--gradient-card);
  border: 1px solid rgba(93,173,226,0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-med) var(--ease-smooth);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(93,173,226,0.25);
  box-shadow: var(--shadow-glow);
}

.product-card-image {
  position: relative;
  height: 280px;
  overflow: hidden;
}

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

.product-card:hover .product-card-image img {
  transform: scale(1.08);
}

.product-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to top, rgba(10,22,40,1) 0%, transparent 100%);
}

.product-card-body {
  padding: var(--space-xl) var(--space-xl) var(--space-2xl);
  position: relative;
  z-index: 1;
  margin-top: -30px;
}

.product-card-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: var(--space-sm);
}

.product-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-md);
}

.product-card p {
  font-size: 0.92rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.product-card-link {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--blue-light);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: gap var(--duration-fast) var(--ease-smooth);
}

.product-card:hover .product-card-link {
  gap: var(--space-md);
}

.product-card-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

/* ═══════════════════════════════════════════════════════════════
   4Cs EDUCATION SECTION (DASHBOARD LAB)
   ═══════════════════════════════════════════════════════════════ */
.four-cs {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-primary) 100%);
}

.diamond-lab-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
  align-items: stretch;
}

/* Panel Styles */
.lab-panel {
  background: var(--gradient-card);
  border: 1px solid rgba(93,173,226,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.lab-preview-panel {
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.lab-panel-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: var(--space-lg);
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lab-panel-title::before {
  content: '';
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue-light);
  box-shadow: 0 0 10px var(--blue-light);
}

.simulator-canvas {
  width: 100%;
  height: 380px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--canvas-glow);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

/* Diamond Render Box */
.diamond-render-box {
  width: 220px;
  height: 220px;
  position: relative;
  transition: transform var(--duration-med) var(--ease-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
}

.diamond-render-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 25px rgba(255,255,255,0.15)) brightness(1.05) contrast(1.05);
  transition: all var(--duration-med);
}

/* Inclusion markers */
.inclusion-marker {
  position: absolute;
  width: 6px;
  height: 6px;
  background: #E74C3C;
  border-radius: 50%;
  filter: blur(0.5px);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-med);
  z-index: 3;
}

/* Light rays visualization */
.light-ray-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.light-ray {
  stroke: rgba(93,173,226,0.6);
  stroke-width: 1.5;
  stroke-dasharray: 4 2;
  opacity: 0;
  transition: opacity var(--duration-med);
}

.light-ray.active {
  opacity: 0.8;
}

/* Lens / Magnifier View */
.magnifier-ring {
  position: absolute;
  width: 150px;
  height: 150px;
  border: 3px solid var(--blue-light);
  border-radius: 50%;
  box-shadow: 0 0 25px rgba(93,173,226,0.3), inset 0 0 15px rgba(10,22,40,0.8);
  pointer-events: none;
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--duration-med) var(--ease-smooth);
  background: rgba(13,31,60,0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 5;
}

.magnifier-ring.active {
  opacity: 1;
  transform: scale(1);
}

/* Size / Reference Finger Overlay */
.finger-ref-overlay {
  position: absolute;
  width: 280px;
  height: 280px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M50,95 L50,55 C50,42 42,30 50,30 C58,30 50,42 50,55 L50,95' fill='none' stroke='rgba%28255,255,255,0.05%29' stroke-width='25' stroke-linecap='round'/%3E%3Ccircle cx='50' cy='55' r='18' fill='none' stroke='rgba%2893,173,226,0.3%29' stroke-dasharray='3 2' stroke-width='1'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  opacity: 0;
  transition: opacity var(--duration-med);
  pointer-events: none;
  z-index: 0;
}

.finger-ref-overlay.active {
  opacity: 1;
}

/* Canvas Toolbar */
.canvas-toolbar {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  z-index: 4;
}

.toolbar-btn {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(93,173,226,0.15);
  color: var(--gray-400);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.toolbar-btn svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.toolbar-btn:hover,
.toolbar-btn.active {
  background: rgba(93,173,226,0.08);
  border-color: var(--blue-light);
  color: var(--white);
}

/* Metrics Dashboard */
.lab-metrics {
  display: flex;
  gap: var(--space-md);
  width: 100%;
  border-top: 1px solid rgba(93,173,226,0.1);
  padding-top: var(--space-lg);
  margin-top: var(--space-md);
}

.metric-card {
  flex: 1;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(93,173,226,0.08);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
}

.metric-card .label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-xs);
}

.metric-card .val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
}

.metric-card .val span {
  color: var(--blue-light);
}

/* Control Console Panel (Right Side) */
.lab-controls-panel {
  gap: var(--space-xl);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-bottom: 1px solid rgba(93,173,226,0.06);
  padding-bottom: var(--space-lg);
}

.control-group:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

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

.control-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.control-selected-val {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--blue-light);
  background: rgba(93,173,226,0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(93,173,226,0.15);
}

.control-description {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.5;
}

/* Premium Button Option Grids */
.option-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.option-grid.five-cols {
  grid-template-columns: repeat(5, 1fr);
}

.option-grid.six-cols {
  grid-template-columns: repeat(6, 1fr);
}

.option-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--gray-400);
  padding: var(--space-md) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.option-btn:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(93,173,226,0.25);
  color: var(--white);
}

.option-btn.active {
  background: var(--gradient-blue);
  border-color: var(--blue-light);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

/* Linear Sliders for Color & Carat */
.lab-slider-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
}

.lab-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--navy-mid);
  outline: none;
}

.lab-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient-blue);
  border: 2px solid var(--white);
  cursor: pointer;
  box-shadow: 0 0 12px rgba(93,173,226,0.6);
  transition: transform var(--duration-fast);
}

.lab-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 0 var(--space-xs);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-600);
}


/* ═══════════════════════════════════════════════════════════════
   DIAMOND SHAPES SECTION
   ═══════════════════════════════════════════════════════════════ */
.diamond-shapes {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
  overflow: hidden;
}

.diamond-shapes::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30,81,153,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.shapes-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.shapes-header .section-subtitle {
  margin: 0 auto;
}

.shapes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-xl);
}

.shape-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all var(--duration-med) var(--ease-smooth);
  cursor: default;
}

.shape-card:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(93,173,226,0.2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.shape-img-wrap {
  width: 130px;
  height: 130px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: none;
  background: transparent;
  padding: 0;
  transition: transform var(--duration-med) var(--ease-smooth);
}

.shape-card:hover .shape-img-wrap {
  transform: scale(1.08);
}

.shape-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-med) var(--ease-smooth);
}

.shape-card:hover .shape-img-wrap img {
  transform: scale(1.06);
}

.shape-card h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.shape-card p {
  font-size: 0.78rem;
  color: var(--gray-400);
}

/* ═══════════════════════════════════════════════════════════════
   PROCESS SECTION
   ═══════════════════════════════════════════════════════════════ */
.process {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-primary) 100%);
}

.process-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.process-header .section-subtitle {
  margin: 0 auto;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 10%;
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-royal), var(--blue-light), var(--blue-royal));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step-number {
  width: 88px;
  height: 88px;
  margin: 0 auto var(--space-xl);
  border-radius: 50%;
  background: var(--gradient-glass);
  border: 2px solid rgba(93,173,226,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: all var(--duration-med) var(--ease-smooth);
}

.process-step:hover .process-step-number {
  border-color: var(--blue-light);
  box-shadow: 0 0 30px rgba(93,173,226,0.2);
  transform: scale(1.08);
}

.process-step-number svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: var(--blue-light);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.process-step h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.process-step p {
  font-size: 0.88rem;
  color: var(--gray-400);
  line-height: 1.6;
  max-width: 240px;
  margin: 0 auto;
}

.process-step .step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--blue-light);
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════════
   WHY CHOOSE US SECTION
   ═══════════════════════════════════════════════════════════════ */
.why-us {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
}

.why-us-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.why-us-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.why-card {
  padding: var(--space-xl);
  background: var(--gradient-glass);
  border: 1px solid rgba(93,173,226,0.1);
  border-radius: var(--radius-lg);
  transition: all var(--duration-med) var(--ease-smooth);
}

.why-card:hover {
  border-color: rgba(93,173,226,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.why-card .icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(93,173,226,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.why-card .icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--blue-light);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.why-card h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.why-card p {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.6;
}

.why-us-transform {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
}

.transform-showcase {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  min-height: 400px;
}

.transform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  flex: 1;
}

.transform-img-wrap {
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(93,173,226,0.1);
  padding: var(--space-md);
  transition: all var(--duration-med) var(--ease-smooth);
}

.transform-img-wrap:hover {
  border-color: rgba(93,173,226,0.25);
  box-shadow: 0 0 30px rgba(93,173,226,0.1);
  transform: scale(1.03);
}

.transform-img-wrap.brilliant {
  border-radius: 50%;
  width: 220px;
  height: 220px;
  background: rgba(93,173,226,0.05);
  border-color: rgba(93,173,226,0.15);
  box-shadow: 0 0 40px rgba(93,173,226,0.08);
}

.transform-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.transform-img-wrap.brilliant img {
  border-radius: 50%;
}

.transform-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray-200);
}

.transform-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-sm);
}

.transform-arrow svg {
  width: 60px;
  height: 24px;
}

.why-us-transform .trust-badge {
  margin-top: var(--space-lg);
  position: relative;
  bottom: auto;
  left: auto;
  right: auto;
}

/* Trust badge overlay */
.trust-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  padding: var(--space-lg) var(--space-xl);
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(93,173,226,0.15);
  border-radius: var(--radius-md);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.trust-badge-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-badge-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--navy-deep);
  stroke-width: 2.5;
}

.trust-badge h5 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.trust-badge p {
  font-size: 0.82rem;
  color: var(--gray-400);
}

/* ═══════════════════════════════════════════════════════════════
   INSTAGRAM FEED SECTION
   ═══════════════════════════════════════════════════════════════ */
.instagram-feed {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
}

.instagram-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.reels-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.posts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-lg);
}

.instagram-card {
  display: block;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all var(--duration-med) var(--ease-smooth);
  box-shadow: var(--shadow-sm);
  z-index: 1;
}

.instagram-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(93,173,226,0.3);
}

.reel-card {
  aspect-ratio: 9 / 16;
}

.post-card {
  aspect-ratio: 1 / 1;
}

.card-img-wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.instagram-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-smooth);
}

.instagram-card:hover img {
  transform: scale(1.08);
}

/* Reels Play Button Overlay */
.play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.instagram-card:hover .play-overlay {
  background: var(--gradient-blue);
  border-color: var(--blue-light);
  transform: translate(-50%, -50%) scale(1.15);
  box-shadow: 0 0 25px rgba(40, 116, 192, 0.55);
}

.play-icon {
  width: 16px;
  height: 16px;
  fill: #FFFFFF;
  margin-left: 2px;
  transition: fill var(--duration-fast);
}

/* Hover Details Overlay */
.card-hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,22,40,0.1) 0%, rgba(10,22,40,0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  z-index: 3;
  transition: opacity var(--duration-med) var(--ease-smooth);
}

.instagram-card:hover .card-hover-overlay {
  opacity: 1;
}

.interaction-stats {
  display: flex;
  gap: var(--space-md);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: var(--space-xs);
  align-items: center;
}

.stat-icon {
  width: 14px;
  height: 14px;
  fill: #FFFFFF;
  vertical-align: middle;
}

.card-caption {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--gray-200);
  font-weight: 400;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Responsive Overrides */
@media (max-width: 991px) {
  .instagram-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 576px) {
  .reels-column,
  .posts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* ═══════════════════════════════════════════════════════════════
   TESTIMONIALS SECTION
   ═══════════════════════════════════════════════════════════════ */
.testimonials {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-primary) 100%);
}

.testimonials-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.testimonials-header .section-subtitle {
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.testimonial-card {
  padding: var(--space-2xl);
  background: var(--gradient-glass);
  border: 1px solid rgba(93,173,226,0.1);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--duration-med) var(--ease-smooth);
}

.testimonial-card:hover {
  border-color: rgba(93,173,226,0.2);
  transform: translateY(-4px);
}

.testimonial-card .quote-mark {
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.4;
  position: absolute;
  top: 16px;
  right: 24px;
}

.testimonial-card .stars {
  display: flex;
  gap: 3px;
  margin-bottom: var(--space-lg);
}

.testimonial-card .stars svg {
  width: 16px;
  height: 16px;
  fill: var(--gold);
}

.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--gray-200);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-author .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
}

.testimonial-author .info h5 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
}

.testimonial-author .info p {
  font-size: 0.78rem;
  color: var(--gray-400);
}

/* ═══════════════════════════════════════════════════════════════
   CTA SECTION
   ═══════════════════════════════════════════════════════════════ */
.cta-section {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
}

.cta-box {
  background: var(--gradient-blue);
  border-radius: var(--radius-xl);
  padding: var(--space-4xl) var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  position: relative;
  z-index: 1;
}

.cta-box .btn {
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════════════════════ */
.contact {
  padding: var(--space-5xl) 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-primary) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-4xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.contact-item .icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: var(--radius-md);
  background: rgba(93,173,226,0.1);
  border: 1px solid rgba(93,173,226,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item .icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--blue-light);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-item h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.6;
}

.contact-item a {
  color: var(--blue-light);
}

.contact-item a:hover {
  color: var(--blue-ice);
}

/* Contact form */
.contact-form {
  background: var(--gradient-glass);
  border: 1px solid rgba(93,173,226,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-200);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--navy-primary);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all var(--duration-fast) var(--ease-smooth);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-600);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(93,173,226,0.1);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235DADE2' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-group select option {
  background: var(--navy-primary);
  color: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  background: var(--navy-primary);
  border-top: 1px solid rgba(93,173,226,0.08);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(93,173,226,0.08);
  margin-bottom: var(--space-2xl);
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(93,173,226,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.footer-social a:hover {
  background: rgba(93,173,226,0.1);
  border-color: var(--blue-light);
  transform: translateY(-3px);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
  fill: var(--gray-400);
  transition: fill var(--duration-fast) var(--ease-smooth);
}

.footer-social a:hover svg {
  fill: var(--blue-light);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-xl);
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: var(--space-md);
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--gray-400);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.footer-col ul li a:hover {
  color: var(--blue-light);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--gray-600);
}

.footer-bottom a {
  color: var(--blue-light);
}

/* ═══════════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-smooth);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s var(--ease-smooth);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s var(--ease-smooth);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.stagger-children .reveal:nth-child(1) { transition-delay: 0.1s; }
.stagger-children .reveal:nth-child(2) { transition-delay: 0.2s; }
.stagger-children .reveal:nth-child(3) { transition-delay: 0.3s; }
.stagger-children .reveal:nth-child(4) { transition-delay: 0.4s; }
.stagger-children .reveal:nth-child(5) { transition-delay: 0.5s; }
.stagger-children .reveal:nth-child(6) { transition-delay: 0.6s; }
.stagger-children .reveal:nth-child(7) { transition-delay: 0.7s; }
.stagger-children .reveal:nth-child(8) { transition-delay: 0.8s; }
.stagger-children .reveal:nth-child(9) { transition-delay: 0.9s; }
.stagger-children .reveal:nth-child(10) { transition-delay: 1.0s; }

/* ═══════════════════════════════════════════════════════════════
   SCROLL-TO-TOP BUTTON
   ═══════════════════════════════════════════════════════════════ */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-blue);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-med) var(--ease-smooth);
  box-shadow: 0 4px 20px rgba(30,81,153,0.4);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 30px rgba(30,81,153,0.6);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--white);
  stroke-width: 2.5;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-diamond-float {
    display: none;
  }

  .about-grid,
  .why-us-grid,
  .diamond-lab-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

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

  .shapes-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
  }

  .process-timeline::before {
    display: none;
  }

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

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

@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }

  .nav-logo img {
    height: 48px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: rgba(10,22,40,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    transition: right var(--duration-med) var(--ease-smooth);
    border-left: 1px solid rgba(93,173,226,0.1);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-xl);
  }

  .hero-stat {
    flex: 1;
    min-width: 100px;
  }

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

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

  .process-timeline {
    grid-template-columns: 1fr;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .about-images {
    grid-template-columns: 1fr;
  }

  .about-img:first-child {
    grid-row: span 1;
  }

  .about-img img,
  .about-img:first-child img {
    height: 220px;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: var(--space-3xl) var(--space-xl);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .trust-badge {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .shapes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .shape-card {
    padding: var(--space-lg) var(--space-md);
  }

  .shape-card svg {
    width: 50px;
    height: 50px;
  }
}

/* Mobile menu overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--duration-med) var(--ease-smooth);
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* Contact social buttons hover state */
.contact-social-btn:hover {
  background: var(--blue-brand) !important;
  border-color: var(--blue-light) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(40, 116, 192, 0.35);
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 94px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--duration-med) var(--ease-smooth);
}

.whatsapp-float:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
  width: 24px;
  height: 24px;
  fill: #FFFFFF;
}