/* ==========================================================================
   NEXORA WEB STUDIOS — DIGITAL SHOWROOM & GLASSMORPHISM DESIGN SYSTEM
   Theme: Obsidian Velvet, Frosted Studio Glass, Cyan Specular Glow & 3D Depth
   "Enter Nexora. Explore What We Build."
   Engineered for Ultra-Luxury Aesthetics & Zero-Lag Mobile Performance
   ========================================================================== */

/* --- 1. Design Tokens & Glass Variables --- */
:root {
  /* Surface Colors — Dark Luxury Palette */
  --bg-deep: #05070c;
  --bg-primary: #080b13;
  --bg-surface: #0e1320;
  --bg-card: rgba(16, 22, 38, 0.72);
  --bg-card-hover: rgba(22, 31, 54, 0.85);
  --bg-card-solid: #111728;
  --bg-glass: rgba(12, 17, 30, 0.68);
  --bg-input: rgba(10, 14, 25, 0.85);

  /* Glassmorphic Layer Hierarchy */
  --glass-surface: rgba(14, 20, 36, 0.65);
  --glass-elevated: rgba(20, 28, 50, 0.78);
  --glass-highlight: rgba(28, 38, 68, 0.85);
  --glass-blur-sm: blur(14px);
  --glass-blur-md: blur(18px);
  --glass-blur-lg: blur(24px);

  /* Specular Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-highlight: rgba(255, 255, 255, 0.28);
  --border-accent: rgba(99, 102, 241, 0.45);
  --border-cyan: rgba(6, 182, 212, 0.45);

  /* Brand Accents */
  --accent-primary: #4f46e5;
  --accent-primary-hover: #4338ca;
  --accent-indigo: #6366f1;
  --accent-cyan: #06b6d4;
  --accent-cyan-light: #38bdf8;
  --accent-gold: #f59e0b;
  --accent-gold-light: #fbbf24;
  --accent-emerald: #10b981;
  --whatsapp-color: #25d366;
  --whatsapp-hover: #20ba5a;

  /* Gradients */
  --gradient-luxury: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  --gradient-accent: linear-gradient(135deg, #6366f1 0%, #06b6d4 50%, #38bdf8 100%);
  --gradient-card: linear-gradient(145deg, rgba(22, 30, 52, 0.75) 0%, rgba(10, 14, 26, 0.9) 100%);
  --gradient-card-elevated: linear-gradient(145deg, rgba(30, 42, 72, 0.85) 0%, rgba(14, 20, 36, 0.95) 100%);
  --gradient-glass-sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, transparent 100%);
  --gradient-button-3d: linear-gradient(180deg, #6366f1 0%, #4338ca 100%);

  /* High-Contrast Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #818cf8;
  --text-cyan: #38bdf8;
  --text-gold: #fbbf24;

  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Shadows & Volumetric Depth */
  --shadow-neu-raised: 
    -4px -4px 12px rgba(255, 255, 255, 0.035),
    8px 12px 24px rgba(0, 0, 0, 0.65);
  
  --shadow-neu-deep: 
    -6px -6px 18px rgba(255, 255, 255, 0.04),
    12px 20px 40px rgba(0, 0, 0, 0.8);

  --shadow-neu-inset: 
    inset 3px 3px 7px rgba(0, 0, 0, 0.7),
    inset -3px -3px 7px rgba(255, 255, 255, 0.04);

  --shadow-button-3d: 
    0 4px 0 #312e81,
    0 8px 20px rgba(79, 70, 229, 0.45);

  --shadow-glass: 
    0 20px 40px -10px rgba(0, 0, 0, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);

  --glow-accent: 0 0 35px rgba(99, 102, 241, 0.3);
  --glow-cyan: 0 0 30px rgba(6, 182, 212, 0.25);
  --glow-gold: 0 0 25px rgba(245, 158, 11, 0.25);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  /* Layout */
  --container-max: 1240px;
  --header-height: 80px;

  /* Transitions */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 160ms var(--ease-smooth);
  --transition-normal: 280ms var(--ease-spring);
}

/* Light Mode Support */
[data-theme="light"] {
  --bg-deep: #edf2f7;
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-input: #ffffff;

  --glass-surface: rgba(255, 255, 255, 0.82);
  --glass-elevated: rgba(255, 255, 255, 0.92);
  --glass-highlight: #ffffff;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.14);
  --border-highlight: rgba(0, 0, 0, 0.22);
  --border-accent: rgba(79, 70, 229, 0.3);

  --text-primary: #0b1120;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-accent: #4f46e5;

  --gradient-luxury: linear-gradient(135deg, #0b1120 0%, #334155 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f1f5f9 100%);
  --gradient-card-elevated: linear-gradient(145deg, #ffffff 0%, #e2e8f0 100%);

  --shadow-neu-raised: 
    -4px -4px 12px rgba(255, 255, 255, 0.9),
    6px 10px 20px rgba(0, 0, 0, 0.08);

  --shadow-neu-deep: 
    -6px -6px 16px rgba(255, 255, 255, 0.95),
    10px 18px 30px rgba(0, 0, 0, 0.12);

  --shadow-neu-inset: 
    inset 3px 3px 6px rgba(0, 0, 0, 0.08),
    inset -3px -3px 6px rgba(255, 255, 255, 0.8);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  letter-spacing: -0.012em;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
}

/* Ambient 3D Showroom Grid Canvas Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 0%, rgba(99, 102, 241, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(79, 70, 229, 0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  transform: translate3d(0, 0, 0);
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: 64px 64px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 6.5rem 0;
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: 600px;
}

@media (max-width: 768px) {
  .section {
    padding: 4.25rem 0;
  }
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3.75rem auto;
}

/* 3D Glassmorphism Badges */
.badge-3d {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  background: var(--glass-surface);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-neu-raised);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.35rem;
  position: relative;
  overflow: hidden;
}

.badge-3d::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  font-weight: 400;
}

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

/* Luxury 3D Tactile Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.95rem 1.95rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  position: relative;
  user-select: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  transform: translate3d(0, 0, 0);
  touch-action: manipulation;
}

.btn-3d-primary {
  background: var(--gradient-button-3d);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: var(--shadow-button-3d);
}

.btn-3d-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.28) 0%, transparent 100%);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  pointer-events: none;
}

.btn-3d-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #312e81, 0 14px 30px rgba(79, 70, 229, 0.55);
}

.btn-3d-primary:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #312e81, 0 3px 10px rgba(79, 70, 229, 0.3);
}

.btn-3d-secondary {
  background: var(--glass-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-neu-raised);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.btn-3d-secondary:hover {
  background: var(--glass-elevated);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-neu-deep);
}

.btn-3d-secondary:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-neu-inset);
}

.btn-whatsapp-3d {
  background: linear-gradient(180deg, #25d366 0%, #1eaf53 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow: 0 4px 0 #15803d, 0 8px 22px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp-3d:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #15803d, 0 14px 28px rgba(37, 211, 102, 0.45);
}

.btn-whatsapp-3d:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #15803d, 0 4px 10px rgba(37, 211, 102, 0.25);
}

.btn-sm {
  padding: 0.65rem 1.25rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1.1rem 2.35rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-full {
  width: 100%;
}

/* Floating Sticky Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur-md);
  -webkit-backdrop-filter: var(--glass-blur-md);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(8, 11, 19, 0.94);
  border-bottom-color: var(--border-medium);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.logo-icon-3d {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1.3rem;
  box-shadow: 
    0 4px 14px rgba(99, 102, 241, 0.45),
    inset -2px -2px 4px rgba(0, 0, 0, 0.3),
    inset 2px 2px 4px rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.logo-tag {
  font-size: 0.725rem;
  font-weight: 700;
  color: var(--text-cyan);
  display: block;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.85rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.45rem 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.theme-toggle-3d {
  background: var(--glass-surface);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-neu-raised);
  color: var(--text-secondary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.theme-toggle-3d:hover {
  color: var(--text-cyan);
  border-color: var(--border-cyan);
  transform: translateY(-2px);
}

.theme-toggle-3d:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-neu-inset);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* =========================================================================
   2. HERO SECTION — THE GRAND ATRIUM
   ========================================================================= */
.hero-section {
  padding-top: calc(var(--header-height) + 4.5rem);
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.7rem, 5.2vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.225rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2.35rem;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.75rem;
}

.hero-features-strip {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

.feature-pill-3d {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.feature-pill-3d svg {
  color: var(--accent-cyan);
  filter: drop-shadow(0 0 6px rgba(6, 182, 212, 0.4));
}

/* 3D Hero Morphic Device Stage */
.hero-3d-stage {
  perspective: 1200px;
  position: relative;
}

.card-tilt {
  transform-style: preserve-3d;
  will-change: transform;
}

.hero-3d-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: 
    var(--shadow-neu-deep),
    0 0 50px rgba(99, 102, 241, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring);
}

.browser-header-3d {
  background: rgba(14, 20, 36, 0.95);
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.browser-dots {
  display: flex;
  gap: 7px;
}

.browser-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.4);
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.browser-url-pill {
  flex: 1;
  background: rgba(8, 11, 19, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.85rem;
  font-size: 0.775rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: monospace;
}

.browser-url-pill svg {
  color: var(--accent-emerald);
  width: 13px;
  height: 13px;
}

.browser-content-3d {
  padding: 1.75rem;
}

.mockup-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.35rem;
}

.mockup-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.mockup-live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
}

.mockup-live-indicator::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.mockup-scores-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.score-badge-3d {
  background: rgba(14, 19, 34, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-neu-raised);
  padding: 0.75rem 0.5rem;
  text-align: center;
  transition: transform var(--transition-fast);
}

.score-num {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--accent-emerald);
  display: block;
  line-height: 1.1;
  font-family: var(--font-heading);
  text-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
}

.score-label {
  font-size: 0.725rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.mockup-banner-3d {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.14) 0%, rgba(6, 182, 212, 0.14) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.mockup-banner-3d h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.mockup-banner-3d p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.floating-glass-chip {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-highlight);
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-deep);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 5;
  transform: translateZ(30px);
}

.chip-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(6, 182, 212, 0.25));
  border: 1px solid var(--border-accent);
  color: var(--text-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chip-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  font-weight: 600;
}

.chip-val {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

/* =========================================================================
   3. VALUE / TRUST FOUNDATION
   ========================================================================= */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.neu-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.neu-card-3d::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.neu-card-3d:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-neu-deep), var(--glow-accent);
}

.neu-card-3d:hover::before {
  opacity: 1;
}

.neu-icon-plate {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-neu-raised);
  color: var(--text-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: transform var(--transition-fast);
}

.neu-card-3d:hover .neu-icon-plate {
  transform: scale(1.08);
  color: #ffffff;
  background: var(--gradient-accent);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.neu-card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.neu-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =========================================================================
   4. INTERACTIVE DIGITAL SHOWROOM (ROOMS 01 - 06)
   ========================================================================= */
.showroom-nav-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3.25rem;
}

.room-tab-btn {
  background: var(--glass-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 0.65rem 1.35rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  box-shadow: var(--shadow-neu-raised);
}

.room-tab-btn .room-num-badge {
  font-size: 0.725rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-cyan);
}

.room-tab-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-cyan);
  transform: translateY(-2px);
}

.room-tab-btn.active {
  background: var(--gradient-accent);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.5);
}

.room-tab-btn.active .room-num-badge {
  background: rgba(0, 0, 0, 0.25);
  color: #ffffff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

.service-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
  position: relative;
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.service-card-3d::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-glass-sheen);
  pointer-events: none;
}

.service-card-3d:hover {
  border-color: var(--border-cyan);
  transform: translateY(-6px);
  box-shadow: var(--shadow-neu-deep), var(--glow-cyan);
}

.service-room-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.15rem;
}

.service-icon-3d {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(6, 182, 212, 0.22));
  border: 1px solid var(--border-accent);
  box-shadow: var(--shadow-neu-raised);
  color: var(--text-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.service-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1.35rem;
  margin-bottom: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.service-feat-item {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.service-feat-item svg {
  color: var(--accent-emerald);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.service-card-3d .btn {
  margin-top: auto;
}

/* =========================================================================
   5. PRICING SECTION
   ========================================================================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
  align-items: stretch;
  margin-bottom: 3rem;
  perspective: 1200px;
}

.pricing-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.75rem 2.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.pricing-card-3d:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-neu-deep);
}

.pricing-card-3d.featured-3d {
  background: var(--gradient-card-elevated);
  border: 2px solid var(--accent-primary);
  box-shadow: 
    var(--shadow-neu-deep),
    0 0 45px rgba(99, 102, 241, 0.35);
  transform: scale(1.04);
  z-index: 2;
}

.pricing-card-3d.featured-3d:hover {
  transform: scale(1.04) translateY(-6px);
}

.featured-tag-3d {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 1.25rem;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.pricing-header {
  margin-bottom: 1.5rem;
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.pricing-for {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.pricing-price-wrap {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-prefix {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: block;
}

.pricing-price {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.pricing-price.custom-price {
  font-size: 2.35rem;
}

.pricing-list {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  margin-bottom: 2.25rem;
  flex-grow: 1;
  list-style: none;
}

.pricing-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.pricing-list li svg {
  color: var(--accent-emerald);
  width: 19px;
  height: 19px;
  margin-top: 2px;
  flex-shrink: 0;
}

.pricing-notice-3d {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-neu-raised);
  padding: 1.35rem 1.75rem;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.pricing-notice-3d p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* =========================================================================
   6. PORTFOLIO GALLERY PAVILION
   ========================================================================= */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

.portfolio-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.portfolio-card-3d:hover {
  border-color: var(--border-accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-neu-deep), var(--glow-accent);
}

.portfolio-media-stage {
  position: relative;
  height: 220px;
  background: var(--bg-surface);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-demo-tag {
  position: absolute;
  top: 1.15rem;
  left: 1.15rem;
  background: rgba(8, 11, 19, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-medium);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  z-index: 2;
}

.portfolio-industry-tag {
  position: absolute;
  bottom: 1.15rem;
  right: 1.15rem;
  background: var(--gradient-accent);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
  z-index: 2;
}

.portfolio-mock-stage {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.75rem;
  text-align: center;
  transition: transform var(--transition-normal);
}

.portfolio-card-3d:hover .portfolio-mock-stage {
  transform: scale(1.05);
}

.graphic-clean-3d {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #fff;
}

.graphic-clinic-3d {
  background: linear-gradient(135deg, #0d9488 0%, #115e59 100%);
  color: #fff;
}

.graphic-restaurant-3d {
  background: linear-gradient(135deg, #ea580c 0%, #9a3412 100%);
  color: #fff;
}

.graphic-icon-3d {
  width: 52px;
  height: 52px;
  margin-bottom: 0.85rem;
}

.graphic-title-3d {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
}

.graphic-sub-3d {
  font-size: 0.8rem;
  opacity: 0.9;
}

.portfolio-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
}

.portfolio-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.35rem;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.portfolio-tag-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.65rem;
  font-size: 0.775rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* =========================================================================
   7. PROCESS ROADMAP
   ========================================================================= */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.75rem;
}

.process-step-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.25rem 1.5rem;
  box-shadow: var(--shadow-neu-raised);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.process-step-3d:hover {
  border-color: var(--border-cyan);
  transform: translateY(-6px);
  box-shadow: var(--shadow-neu-deep), var(--glow-cyan);
}

.step-cube-num {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 1.25rem;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* =========================================================================
   8. WHY CHOOSE NEXORA
   ========================================================================= */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  margin-bottom: 3.5rem;
}

.why-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem 1.65rem;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
}

.why-card-3d:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-neu-deep);
}

.why-icon-box-3d {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-neu-raised);
}

.why-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.why-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.honest-banner-3d {
  background: var(--bg-card);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-raised);
  padding: 1.35rem 2.25rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.honest-banner-3d p {
  font-size: 0.925rem;
  color: var(--text-muted);
  font-style: italic;
}

/* =========================================================================
   9. TECHNICAL SEO STANDARDS
   ========================================================================= */
.seo-box-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-neu-deep);
  padding: 3.5rem;
  backdrop-filter: var(--glass-blur-md);
  -webkit-backdrop-filter: var(--glass-blur-md);
}

.seo-intro {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.75rem auto;
}

.seo-intro h3 {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.seo-intro p {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.25rem;
}

.seo-item-3d {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-raised);
  padding: 1.35rem 1.15rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  transition: transform var(--transition-fast);
}

.seo-item-3d:hover {
  transform: translateY(-2px);
  border-color: var(--border-cyan);
}

.seo-item-3d svg {
  color: var(--accent-emerald);
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 2px;
  filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.4));
}

.seo-item-text h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.seo-item-text p {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.seo-disclaimer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.65rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =========================================================================
   10. FAQ ACCORDION
   ========================================================================= */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.faq-item-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neu-raised);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item-3d.active {
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-neu-deep), 0 0 20px rgba(6, 182, 212, 0.15);
}

.faq-question-3d {
  width: 100%;
  padding: 1.5rem 1.75rem;
  background: transparent;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-icon-3d {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-cyan);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item-3d.active .faq-icon-3d {
  transform: rotate(180deg);
}

.faq-answer-3d {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 1.75rem;
}

.faq-item-3d.active .faq-answer-3d {
  max-height: 320px;
  padding: 0 1.75rem 1.5rem 1.75rem;
}

.faq-answer-3d p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* =========================================================================
   11. CONTACT HUB
   ========================================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.75rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.contact-heading-wrap h2 {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.95rem;
  line-height: 1.18;
}

.contact-heading-wrap p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.contact-channel-card-3d {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.35rem 1.65rem;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-normal);
}

.contact-channel-card-3d:hover {
  border-color: var(--border-accent);
  transform: translateX(5px);
  box-shadow: var(--shadow-neu-deep);
}

.channel-icon-3d {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-neu-raised);
}

.channel-icon-whatsapp {
  background: rgba(37, 211, 102, 0.16);
  color: var(--whatsapp-color);
  border: 1px solid rgba(37, 211, 102, 0.35);
}

.channel-icon-email {
  background: rgba(99, 102, 241, 0.16);
  color: var(--text-accent);
  border: 1px solid var(--border-accent);
}

.channel-label {
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 700;
  display: block;
}

.channel-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.contact-form-card-3d {
  background: var(--gradient-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.75rem;
  box-shadow: var(--shadow-neu-deep);
  backdrop-filter: var(--glass-blur-md);
  -webkit-backdrop-filter: var(--glass-blur-md);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.35rem;
  margin-bottom: 1.35rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

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

.form-input-3d, .form-select-3d, .form-textarea-3d {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-neu-inset);
  padding: 0.85rem 1.15rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input-3d:focus, .form-select-3d:focus, .form-textarea-3d:focus {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-neu-inset), 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.form-textarea-3d {
  resize: vertical;
  min-height: 115px;
}

.form-submit-row {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.65rem;
}

/* =========================================================================
   12. STUDIO FOOTER
   ========================================================================= */
.footer {
  background: #04060a;
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 2.25rem 0;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: 1rem;
  max-width: 340px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.35rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link {
  font-size: 0.925rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--text-cyan);
}

.footer-bottom {
  padding-top: 2.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Floating 3D WhatsApp Button */
.floating-whatsapp-3d {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: linear-gradient(180deg, #25d366 0%, #1eaf53 100%);
  color: #ffffff;
  padding: 0.95rem 1.45rem;
  border-radius: var(--radius-pill);
  box-shadow: 
    0 6px 0 #15803d,
    0 12px 28px rgba(37, 211, 102, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  font-weight: 800;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.floating-whatsapp-3d:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 
    0 8px 0 #15803d,
    0 16px 36px rgba(37, 211, 102, 0.55);
}

.floating-whatsapp-3d:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #15803d, 0 6px 14px rgba(37, 211, 102, 0.3);
}

.floating-whatsapp-3d svg {
  width: 24px;
  height: 24px;
}

/* =========================================================================
   13. 3D INTERACTIVE PROJECT MODAL
   ========================================================================= */
.modal-backdrop-3d {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 6, 10, 0.85);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop-3d.active {
  opacity: 1;
  visibility: visible;
}

.modal-container-3d {
  background: var(--bg-surface);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 920px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-neu-deep);
  transform: scale(0.92) translateZ(0);
  transition: transform var(--transition-normal);
}

.modal-backdrop-3d.active .modal-container-3d {
  transform: scale(1) translateZ(0);
}

.modal-header-3d {
  padding: 1.65rem 2.25rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  z-index: 10;
}

.modal-title-wrap h3 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
}

.modal-title-wrap span {
  font-size: 0.8rem;
  color: var(--text-cyan);
  font-weight: 700;
  text-transform: uppercase;
}

.modal-close-3d {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.4rem;
  box-shadow: var(--shadow-neu-raised);
  transition: all var(--transition-fast);
}

.modal-close-3d:hover {
  background: #ef4444;
  color: #fff;
  border-color: #ef4444;
}

.modal-body-3d {
  padding: 2.25rem;
}

.modal-mockup-frame {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-neu-inset);
}

.modal-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem;
  margin: 1.75rem 0;
}

.modal-feat-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.modal-feat-item svg {
  color: var(--accent-emerald);
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}

.modal-actions {
  display: flex;
  gap: 1.25rem;
  margin-top: 2.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

/* =========================================================================
   14. MOBILE FIRST RESPONSIVE ARCHITECTURE (ZERO LAG GUARANTEE)
   ========================================================================= */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card-3d.featured-3d {
    transform: none;
  }
  .pricing-card-3d.featured-3d:hover {
    transform: translateY(-4px);
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(8, 11, 19, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-medium);
    flex-direction: column;
    align-items: flex-start;
    padding: 2.25rem 1.75rem;
    gap: 1.35rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    font-size: 1.15rem;
    width: 100%;
    padding: 0.6rem 0;
  }

  .nav-actions .btn {
    display: none;
  }

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

  .showroom-nav-wrap {
    gap: 0.5rem;
  }
  
  .room-tab-btn {
    padding: 0.5rem 0.95rem;
    font-size: 0.8rem;
  }

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

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

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

  .seo-box-3d {
    padding: 2.25rem 1.5rem;
  }

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

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

  .form-group.full-width {
    grid-column: span 1;
  }

  .contact-form-card-3d {
    padding: 2rem 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .floating-whatsapp-3d span {
    display: none;
  }
  .floating-whatsapp-3d {
    padding: 0.9rem;
    border-radius: 50%;
    bottom: 1.35rem;
    right: 1.35rem;
  }
}

@media (pointer: coarse) {
  .btn, .nav-link, .theme-toggle-3d, .mobile-toggle, .faq-question-3d, .room-tab-btn {
    min-height: 48px;
  }
}