/* ===================================================================
   VYOMANTRA TECHNOLOGIES - DESIGN SYSTEM & MASTER STYLESHEET
   Brand Palette: Deep Cosmic Obsidian, Electric Cyan, Royal Purple
=================================================================== */
:root {
  /* Color System */
  --bg-dark: #050711;
  --bg-primary: #070915;
  --bg-secondary: #0c1026;
  --bg-card: rgba(13, 18, 38, 0.72);
  --bg-card-hover: rgba(18, 25, 52, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.65);
  
  /* Accents */
  --cyan: #00f0ff;
  --cyan-glow: rgba(0, 240, 255, 0.35);
  --blue: #38bdf8;
  --blue-glow: rgba(56, 189, 248, 0.3);
  --purple: #8b5cf6;
  --purple-deep: #7928ca;
  --purple-glow: rgba(139, 92, 246, 0.35);
  --pink-accent: #f43f5e;
  --emerald: #10b981;
  
  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-cyan: rgba(0, 240, 255, 0.25);
  --border-purple: rgba(139, 92, 246, 0.25);
  --border-glow: rgba(0, 240, 255, 0.45);
  
  /* Text */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-highlight: #ffffff;
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Layout & Elevations */
  --container-max: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 240, 255, 0.06);
  --shadow-glow: 0 0 35px rgba(0, 240, 255, 0.25), 0 0 60px rgba(139, 92, 246, 0.15);
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1rem;
  color: var(--text-main);
  background: var(--bg-primary);
  border: 2px solid var(--cyan);
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(139, 92, 246, 0.07) 0%, transparent 45%),
    linear-gradient(180deg, #050711 0%, #070918 50%, #050711 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

/* Background Cyber Grid */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-size: 60px 60px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

/* Full-Page Ambient Background Animation Canvas */
#ambientBg,
.ambient-bg-canvas {
  display: none !important;
}

#ambientBgCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

/* Full-Screen Background Video & 100px Line-by-Line Scroll Canvas */
#fullscreenPixelBg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.88;
}

/* Minimalist Cyber Line-by-Line HUD Scanner Badge */
.fullscreen-scan-hud {
  position: fixed;
  top: 5.5rem;
  right: 2rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(5, 7, 20, 0.88);
  border: 1px solid rgba(0, 240, 255, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 240, 255, 0.18);
  pointer-events: none;
  letter-spacing: 0.05em;
  transition: opacity 0.3s ease;
}

.fullscreen-scan-hud .hud-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulseScanDot 1.6s ease-in-out infinite alternate;
}

@keyframes pulseScanDot {
  0% { opacity: 0.4; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1.3); }
}

/* Selection */
::selection {
  background: var(--cyan);
  color: #050711;
}

/* Container */
.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;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-highlight);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  font-weight: 400;
}

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

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

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, #38bdf8 45%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-alt {
  background: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Top Promo Bar */
.promo-banner {
  background: linear-gradient(90deg, rgba(13, 18, 42, 0.95), rgba(24, 15, 45, 0.95));
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  padding: 0.65rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  position: relative;
  z-index: 100;
  text-align: center;
  flex-wrap: wrap;
}

.promo-banner .badge {
  background: rgba(0, 240, 255, 0.15);
  color: var(--cyan);
  border: 1px solid rgba(0, 240, 255, 0.4);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.promo-banner p {
  color: var(--text-main);
  font-size: 0.88rem;
  margin: 0;
}

.promo-banner .promo-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(135deg, var(--cyan), #2563eb);
  color: #050711;
  font-weight: 700;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.promo-banner .promo-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 15px var(--cyan-glow);
}

/* ===================================================================
   HEADER & NAVIGATION
=================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 9, 21, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-smooth), border-color var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(7, 9, 21, 0.94);
  border-bottom-color: rgba(0, 240, 255, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

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

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--text-highlight);
}

.brand-logo img {
  width: 54px;
  height: 54px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px var(--cyan-glow));
  transition: transform var(--transition-smooth);
}

.brand-logo:hover img {
  transform: scale(1.08) rotate(3deg);
}

.brand-logo span {
  font-weight: 400;
  font-size: 0.85rem;
  display: block;
  color: var(--cyan);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: -2px;
}

/* Desktop Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width var(--transition-smooth);
  border-radius: var(--radius-full);
}

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

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

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: rgba(13, 18, 38, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-smooth);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  z-index: 100;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.08);
  transform: translateX(4px);
}

/* Header CTAs */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.25rem;
  transition: var(--transition-fast);
}

.mobile-toggle:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 17, 0.96);
  backdrop-filter: blur(24px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
}

.mobile-drawer.active {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  list-style: none;
}

.mobile-nav-link {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--cyan);
}

/* ===================================================================
   BUTTONS & BADGES
=================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, #2563eb 100%);
  color: #050711;
  font-weight: 700;
  box-shadow: 0 4px 20px var(--cyan-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.45);
}

.btn-purple {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-deep) 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--purple-glow);
}

.btn-purple:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.45);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-cyan);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1rem 2.2rem;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

/* Badges */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-full);
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-purple {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--border-purple);
  color: var(--purple);
}

/* ===================================================================
   SECTION COMMONS
=================================================================== */
section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-tag {
  display: inline-block;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 1.25rem;
}

.section-desc {
  font-size: 1.15rem;
  line-height: 1.7;
}

/* ===================================================================
   FOOTER
=================================================================== */
.site-footer {
  background: #03050c;
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 2rem 0;
  position: relative;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  margin: 1.25rem 0 1.75rem 0;
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-highlight);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--cyan);
  padding-left: 4px;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-link img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.social-link:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 1rem;
}

/* Floating Action Dock */
.floating-dock {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 80;
}

.dock-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  transition: var(--transition-smooth);
}

.dock-whatsapp {
  background: #25D366;
  color: white;
}

.dock-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 0 25px rgba(37, 211, 102, 0.6);
}

.dock-whatsapp img {
  width: 28px;
  height: 28px;
}

.dock-top {
  background: var(--bg-card);
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.dock-top.visible {
  opacity: 1;
  visibility: visible;
}

.dock-top:hover {
  background: var(--cyan);
  color: #050711;
  transform: translateY(-3px);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 991px) {
  /* Remove HUD badge on mobile view alone */
  .fullscreen-scan-hud,
  #fullscreenScanHud {
    display: none !important;
  }
  .ambient-bg-canvas,
  #ambientBg {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .nav-menu, .header-actions .btn {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  /* Remove HUD badge on mobile view alone */
  .fullscreen-scan-hud,
  #fullscreenScanHud {
    display: none !important;
  }
  /* Remove blank canvas spacing */
  .ambient-bg-canvas,
  #ambientBg {
    display: none !important;
  }
  /* Clean mobile section padding - remove excessive empty spaces */
  section {
    padding: 2.75rem 0 !important;
  }
  .hero,
  .hero.hero-centered,
  .about-hero {
    padding: 2rem 0 1.5rem 0 !important;
  }
  .hero-header-centered {
    margin: 0 auto 1.5rem auto !important;
  }
  .hero-title {
    font-size: 2.15rem !important;
    line-height: 1.2 !important;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .floating-dock {
    bottom: 1.25rem;
    right: 1.25rem;
  }
}