/* ═══════════════════════════════════════════════════════
   EHS – Electronic Hardware & Software
   Main Stylesheet  |  Dark Futuristic Tech Theme
   ═══════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties ─────────────────────────── */
:root {
  --blue-neon:      #00d9ff;
  --green-neon:     #00ff88;
  --blue-mid:       #0099ff;
  --green-mid:      #00cc66;
  --blue-dark:      #003366;
  --bg-primary:     #080c14;
  --bg-secondary:   #0d1220;
  --bg-card:        rgba(13, 25, 48, 0.85);
  --bg-glass:       rgba(0, 217, 255, 0.05);
  --border-glow:    rgba(0, 217, 255, 0.25);
  --text-primary:   #e8f4ff;
  --text-secondary: #8ba3c1;
  --text-muted:     #4a6080;
  --gradient-main:  linear-gradient(135deg, var(--blue-neon), var(--green-neon));
  --gradient-card:  linear-gradient(135deg, rgba(0,217,255,0.08), rgba(0,255,136,0.04));
  --shadow-glow:    0 0 30px rgba(0, 217, 255, 0.15);
  --shadow-card:    0 8px 32px rgba(0, 0, 0, 0.5);
  --radius-sm:      8px;
  --radius-md:      16px;
  --radius-lg:      24px;
  --transition:     0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-tech:      'Orbitron', monospace;
  --font-body:      'Inter', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ─── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--blue-neon); border-radius: 3px; }

/* ─── Utility ────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ─── Canvas Background ─────────────────────────────── */
#circuit-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ─── Section Headers ────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border: 1px solid var(--border-glow);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-neon);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: var(--bg-glass);
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-tech);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
  padding: 16px 0;
}

.navbar.scrolled {
  background: rgba(8, 12, 20, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-glow), 0 4px 24px rgba(0,0,0,0.5);
  padding: 10px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glow);
  background: var(--bg-glass);
  font-family: var(--font-tech);
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: -1px;
  backdrop-filter: blur(10px);
}
.logo-icon.small { width: 40px; height: 40px; font-size: 0.75rem; }
.logo-e { color: var(--blue-neon); }
.logo-h { color: white; }
.logo-s { color: var(--green-neon); }

.logo-text { display: flex; flex-direction: column; }
.logo-main {
  font-family: var(--font-tech);
  font-weight: 800;
  font-size: 1.3rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.logo-sub {
  font-size: 0.6rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
  transition: width var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--blue-neon);
  background: var(--bg-glass);
}
.nav-link:hover::after, .nav-link.active::after { width: 60%; }

/* Nav CTA */
.btn-nav-cta {
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  background: var(--gradient-main);
  color: var(--bg-primary);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: opacity var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-nav-cta:hover {
  opacity: 0.9;
  box-shadow: 0 0 20px rgba(0,217,255,0.4);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--blue-neon);
  border-radius: 1px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: rgba(8, 12, 20, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glow);
  z-index: 999;
  padding: 16px 24px;
  gap: 4px;
}
.mobile-menu.open { display: flex; }

.mobile-link {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.mobile-link:hover { color: var(--blue-neon); background: var(--bg-glass); }

/* ═══════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  overflow: hidden;
  z-index: 1;
}

/* Gradient radials */
.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,217,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,255,136,0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Particles */
.particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0%   { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

/* Hero layout */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--border-glow);
  border-radius: 100px;
  background: var(--bg-glass);
  font-size: 0.8rem;
  color: var(--green-neon);
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
  animation: fadeInDown 0.8s ease both;
}

.hero-title {
  font-family: var(--font-tech);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInDown 0.8s ease 0.1s both;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 36px;
  animation: fadeInDown 0.8s ease 0.2s both;
}

/* CTA buttons */
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInDown 0.8s ease 0.3s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  background: var(--gradient-main);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 0.95rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.btn-primary:hover {
  box-shadow: 0 0 30px rgba(0,217,255,0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glow);
  background: var(--bg-glass);
  color: var(--blue-neon);
  font-weight: 600;
  font-size: 0.95rem;
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-secondary:hover {
  border-color: var(--blue-neon);
  background: rgba(0,217,255,0.1);
  transform: translateY(-2px);
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  animation: fadeInDown 0.8s ease 0.4s both;
}

.stat-item {
  text-align: center;
  padding: 0 24px;
}
.stat-item:first-child { padding-left: 0; }

.stat-number {
  display: block;
  font-family: var(--font-tech);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-plus {
  font-family: var(--font-tech);
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--border-glow), transparent);
}

/* Device Mockups */
.hero-visual {
  position: relative;
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  min-height: 340px;
  animation: fadeInRight 1s ease 0.3s both;
}

.device-wrapper {
  position: relative;
  width: 360px; height: 280px;
}

/* Laptop */
.device-laptop {
  position: absolute;
  top: 0; left: 0;
  width: 280px;
  animation: float-device 5s ease-in-out infinite;
}

@keyframes float-device {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50%       { transform: translateY(-16px) rotate(2deg); }
}

.laptop-screen {
  background: linear-gradient(135deg, #0a1628, #0d1f3c);
  border: 2px solid rgba(0,217,255,0.3);
  border-radius: 10px 10px 0 0;
  height: 170px;
  padding: 16px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(0,217,255,0.2), inset 0 0 40px rgba(0,0,0,0.5);
}

.screen-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.screen-bar {
  height: 8px;
  background: linear-gradient(90deg, var(--blue-neon), var(--green-neon));
  border-radius: 4px;
  animation: scan 3s linear infinite;
}

@keyframes scan {
  0%   { width: 20%; opacity: 1; }
  50%  { width: 80%; opacity: 0.7; }
  100% { width: 20%; opacity: 1; }
}

.screen-icons {
  display: flex;
  gap: 12px;
  font-size: 1.2rem;
}
.screen-icons .fa-windows { color: #00adef; }
.screen-icons .fa-apple   { color: #aaa; }
.screen-icons .fa-linux   { color: var(--green-neon); }

.screen-line {
  height: 4px;
  background: rgba(0,217,255,0.2);
  border-radius: 2px;
}
.screen-line.short { width: 60%; }

.screen-pulse {
  position: absolute;
  bottom: 10px; right: 10px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--green-neon);
  box-shadow: 0 0 10px var(--green-neon);
  animation: pulse 1.5s ease-in-out infinite;
}

.laptop-base {
  background: #0a1628;
  border: 2px solid rgba(0,217,255,0.2);
  border-top: none;
  border-radius: 0 0 8px 8px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.laptop-keyboard {
  width: 80%;
  height: 8px;
  background: repeating-linear-gradient(
    90deg,
    rgba(0,217,255,0.15) 0, rgba(0,217,255,0.15) 6px,
    transparent 6px, transparent 9px
  );
  border-radius: 2px;
}

/* Phone */
.device-phone {
  position: absolute;
  bottom: -10px; right: 0;
  width: 90px;
  animation: float-phone 4s ease-in-out infinite 1s;
}

@keyframes float-phone {
  0%, 100% { transform: translateY(0px) rotate(3deg); }
  50%       { transform: translateY(-12px) rotate(-3deg); }
}

.phone-screen {
  background: linear-gradient(135deg, #0a1628, #0d1f3c);
  border: 2px solid rgba(0,255,136,0.3);
  border-radius: 12px;
  height: 150px;
  padding: 10px;
  box-shadow: 0 0 20px rgba(0,255,136,0.2);
}

.phone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
  justify-content: center;
}

.phone-icon {
  font-size: 1rem;
  animation: pulse 2s ease-in-out infinite;
}
.phone-icon.fa-android { color: #a4c639; }
.phone-icon.fa-apple   { color: #aaa; }

.phone-bar {
  width: 70%; height: 3px;
  background: rgba(0,255,136,0.3); border-radius: 2px;
}
.phone-bar.short { width: 45%; }

/* Glow rings */
.glow-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,217,255,0.2);
  animation: ring-pulse 3s ease-in-out infinite;
  pointer-events: none;
}
.ring-1 { width: 200px; height: 200px; top: 30px; left: 20px; animation-delay: 0s; }
.ring-2 { width: 300px; height: 300px; top: -20px; left: -30px; animation-delay: 1s; border-color: rgba(0,255,136,0.1); }

@keyframes ring-pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50%       { transform: scale(1.05); opacity: 0.7; }
}

/* OS Strip */
.os-strip {
  position: absolute;
  bottom: 30px; left: 50%; transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: 100px;
  padding: 12px 28px;
  backdrop-filter: blur(20px);
  z-index: 3;
  white-space: nowrap;
}

.os-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.os-icons { display: flex; gap: 16px; }

.os-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: default;
  transition: transform var(--transition);
}
.os-icon:hover { transform: translateY(-3px); }
.os-icon i { font-size: 1.3rem; }
.os-icon span { font-size: 0.6rem; color: var(--text-muted); }
.os-icon:nth-child(1) i { color: #a4c639; }
.os-icon:nth-child(2) i { color: #aaa; }
.os-icon:nth-child(3) i { color: #00adef; }
.os-icon:nth-child(4) i { color: #ccc; }
.os-icon:nth-child(5) i { color: var(--green-neon); }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 24px; right: 24px;
  width: 24px; height: 40px;
  border: 2px solid var(--border-glow);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
  z-index: 3;
}
.scroll-dot {
  width: 4px; height: 8px;
  background: var(--blue-neon);
  border-radius: 2px;
  animation: scroll-anim 2s ease infinite;
}
@keyframes scroll-anim {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(16px); opacity: 0; }
}

/* ═══════════════════════════════════════════════════════
   SERVICES SECTION
   ═══════════════════════════════════════════════════════ */
.services-section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

/* Service Card */
.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--blue-neon);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 30px rgba(0,217,255,0.15);
}

/* Card glow effect */
.card-glow {
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(0,217,255,0.12) 0%, transparent 70%);
  pointer-events: none;
  transition: opacity var(--transition);
}
.service-card:hover .card-glow { opacity: 2; }

.card-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(0,217,255,0.1);
  border: 1px solid rgba(0,217,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--blue-neon);
  transition: box-shadow var(--transition), background var(--transition);
}
.card-icon.green {
  background: rgba(0,255,136,0.1);
  border-color: rgba(0,255,136,0.3);
  color: var(--green-neon);
}
.service-card:hover .card-icon {
  box-shadow: 0 0 20px rgba(0,217,255,0.4);
  background: rgba(0,217,255,0.15);
}
.service-card:hover .card-icon.green {
  box-shadow: 0 0 20px rgba(0,255,136,0.4);
  background: rgba(0,255,136,0.15);
}

.card-title {
  font-family: var(--font-tech);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}
.card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  color: var(--text-secondary);
}
.card-features li i {
  color: var(--green-neon);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-neon);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border-glow);
  transition: gap var(--transition), color var(--transition);
}
.card-cta:hover { gap: 10px; color: var(--green-neon); }

/* ═══════════════════════════════════════════════════════
   SOLUTIONS SECTION
   ═══════════════════════════════════════════════════════ */
.solutions-section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-primary));
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.solution-badge {
  background: var(--gradient-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(30px);
}

.solution-badge.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), box-shadow var(--transition);
}

.solution-badge:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--blue-neon);
  box-shadow: 0 0 30px rgba(0,217,255,0.2);
}

.badge-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(0,217,255,0.1);
  border: 2px solid rgba(0,217,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--blue-neon);
  margin: 0 auto 16px;
  box-shadow: 0 0 20px rgba(0,217,255,0.15);
  transition: box-shadow var(--transition), transform var(--transition);
}
.badge-icon.green {
  background: rgba(0,255,136,0.1);
  border-color: rgba(0,255,136,0.3);
  color: var(--green-neon);
  box-shadow: 0 0 20px rgba(0,255,136,0.15);
}
.solution-badge:hover .badge-icon {
  box-shadow: 0 0 30px rgba(0,217,255,0.4);
  transform: scale(1.1) rotate(5deg);
}
.solution-badge:hover .badge-icon.green { box-shadow: 0 0 30px rgba(0,255,136,0.4); }

.solution-badge h3 {
  font-family: var(--font-tech);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.solution-badge p {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════ */
.about-section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* CPU Chip visual */
.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.cpu-chip {
  position: relative;
  width: 200px; height: 200px;
  background: linear-gradient(135deg, #0d1a2e, #0a1628);
  border: 2px solid rgba(0,217,255,0.4);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(0,217,255,0.2), inset 0 0 40px rgba(0,0,0,0.5);
  animation: chip-glow 3s ease-in-out infinite;
  z-index: 2;
}

@keyframes chip-glow {
  0%, 100% { box-shadow: 0 0 40px rgba(0,217,255,0.2), inset 0 0 40px rgba(0,0,0,0.5); }
  50%       { box-shadow: 0 0 80px rgba(0,217,255,0.4), inset 0 0 40px rgba(0,0,0,0.5); }
}

.chip-core {
  text-align: center;
  background: linear-gradient(135deg, rgba(0,217,255,0.1), rgba(0,255,136,0.05));
  border: 1px solid rgba(0,217,255,0.3);
  border-radius: 8px;
  padding: 16px 24px;
}
.chip-core span {
  display: block;
  font-family: var(--font-tech);
  font-size: 1.6rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.chip-core small {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.chip-pins {
  position: absolute;
  display: flex;
}
.chip-pins.top    { top: -12px; left: 50%; transform: translateX(-50%); gap: 14px; }
.chip-pins.bottom { bottom: -12px; left: 50%; transform: translateX(-50%); gap: 14px; }
.chip-pins.left   { left: -12px; top: 50%; transform: translateY(-50%); flex-direction: column; gap: 20px; }
.chip-pins.right  { right: -12px; top: 50%; transform: translateY(-50%); flex-direction: column; gap: 20px; }

.chip-pins span {
  display: block;
  background: var(--blue-neon);
  border-radius: 1px;
  box-shadow: 0 0 6px var(--blue-neon);
  animation: pin-flicker 2s ease infinite;
}
.chip-pins.top span, .chip-pins.bottom span { width: 10px; height: 10px; }
.chip-pins.left span, .chip-pins.right span { width: 10px; height: 6px; }
.chip-pins span:nth-child(odd)  { animation-delay: 0.3s; background: var(--green-neon); box-shadow: 0 0 6px var(--green-neon); }

@keyframes pin-flicker {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.about-glow-1 {
  position: absolute;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(0,217,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}
.about-glow-2 {
  position: absolute;
  width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(0,255,136,0.06) 0%, transparent 70%);
  border-radius: 50%;
  top: 60%; left: 60%;
  transform: translate(-50%, -50%);
  z-index: 1;
  animation: float-device 6s ease-in-out infinite;
}

/* About content */
.about-content .section-tag { margin-bottom: 16px; }

.about-text {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.about-feature > i {
  width: 40px; height: 40px;
  background: rgba(0,217,255,0.1);
  border: 1px solid rgba(0,217,255,0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--blue-neon);
}

.about-feature h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.about-feature p {
  font-size: 0.825rem;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════
   BOOKING SECTION
   ═══════════════════════════════════════════════════════ */
.booking-section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-primary));
}

.booking-wrapper {
  max-width: 760px;
  margin: 0 auto;
}

.booking-form {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group.full { margin-bottom: 20px; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.form-group label i { color: var(--blue-neon); font-size: 0.75rem; }

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300d9ff' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}
.form-group select option { background: var(--bg-secondary); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-neon);
  box-shadow: 0 0 0 3px rgba(0,217,255,0.1);
}

.form-group textarea { resize: vertical; min-height: 100px; }

/* Submit button */
.btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--gradient-main);
  color: var(--bg-primary);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: box-shadow var(--transition), transform var(--transition), opacity var(--transition);
}
.btn-submit:hover {
  box-shadow: 0 0 30px rgba(0,217,255,0.4);
  transform: translateY(-2px);
}
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.form-success {
  margin-top: 16px;
  padding: 14px 20px;
  background: rgba(0,255,136,0.1);
  border: 1px solid rgba(0,255,136,0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green-neon);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ═══════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════ */
.footer {
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glow);
  padding: 64px 0 0;
}

.footer-circuit {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue-neon), var(--green-neon), transparent);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

/* Brand col */
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glow);
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.social-link:hover {
  color: var(--blue-neon);
  border-color: var(--blue-neon);
  background: rgba(0,217,255,0.1);
}

/* Other cols */
.footer-heading {
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-heading i { color: var(--blue-neon); }

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover { color: var(--blue-neon); padding-left: 4px; }

.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.footer-contact li i { color: var(--blue-neon); margin-top: 2px; flex-shrink: 0; }
.footer-contact a { color: var(--text-secondary); transition: color var(--transition); }
.footer-contact a:hover { color: var(--blue-neon); }

/* Map placeholder */
.map-placeholder {
  margin-top: 16px;
  padding: 16px;
  border: 1px dashed var(--border-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
  background: var(--bg-glass);
}
.map-placeholder:hover { border-color: var(--blue-neon); color: var(--blue-neon); }
.map-placeholder i { font-size: 1rem; }

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid var(--border-glow);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

.footer-tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--border-glow);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 6px;
}

/* ═══════════════════════════════════════════════════════
   BACK TO TOP BUTTON
   ═══════════════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--gradient-main);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  z-index: 999;
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { box-shadow: 0 0 20px rgba(0,217,255,0.5); }

/* ─── Keyframe animations ────────────────────────────── */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.9); }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════ */

/* Tablet – 1024px */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about-visual { min-height: 240px; }
  .hero { flex-direction: column; text-align: center; padding-bottom: 120px; }
  .hero-content { max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { width: 100%; max-width: 400px; margin: 0 auto; }
}

/* Mobile – 768px */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .btn-nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero-title { font-size: 2rem; }
  .hero-visual { display: none; }
  .os-strip { flex-direction: column; gap: 10px; padding: 16px 20px; text-align: center; }

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

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

  .booking-form { padding: 24px; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .nav-actions { gap: 8px; }
}

/* Small Mobile – 480px */
@media (max-width: 480px) {
  .solutions-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { display: none; }
  .stat-item { padding: 0; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { justify-content: center; }
}