/* ==========================================================================
   DSW Solution - Corporate Light Design System
   Clean, professional, minimalist theme for enterprise tech company
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
  /* Colors - Hybrid Tech-Industrial + Human-AI */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F1F5F9; /* Slate 100 */
  --color-bg-tertiary: #E2E8F0; /* Slate 200 */
  --color-bg-card: #FFFFFF;
  
  /* Brand Colors - Deep Navy & Electric Teal */
  --color-brand-primary: #0B1120; /* Deep Navy - Engineering Core */
  --color-brand-secondary: #00E5FF; /* Electric Teal - AI/Innovation */
  --color-brand-mid: #1E293B; /* Slate 800 - Text/Light Backgrounds */
  --color-brand-light: #F0FDFA; /* Very light teal tint */
  --color-brand-dark: #020617; /* Almost Black */
  
  /* Accent Colors */
  --color-accent-teal: #00E5FF;
  --color-accent-blue: #3B82F6;
  --color-accent-purple: #6366F1; /* Indigo - subtle AI usage only */
  
  /* Text Colors */
  --color-text-primary: #0F172A; /* Slate 900 */
  --color-text-secondary: #475569; /* Slate 600 */
  --color-text-muted: #94A3B8; /* Slate 400 */
  --color-text-inverse: #FFFFFF;
  --color-text-mono: #0B1120; /* For technical tags */
  
  /* Borders */
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-border-tech: #00E5FF; /* For active/tech states */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0B1120 0%, #1E293B 100%);
  --gradient-tech: linear-gradient(135deg, #00E5FF 0%, #3B82F6 100%);
  --gradient-hero: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
  --gradient-glow: radial-gradient(circle at center, rgba(0, 229, 255, 0.15) 0%, transparent 70%);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace; /* Tech/Industrial details */
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  
  /* Border Radius - Mix of sharp and soft */
  --radius-sm: 2px; /* Tech feel */
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px; /* For large human-friendly cards */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-tech: 0 0 0 1px rgba(0, 229, 255, 0.3), 0 0 10px rgba(0, 229, 255, 0.1); /* Glow border */
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Container */
  --container-max: 1280px;
  --container-padding: 1.5rem;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.375rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h5 { font-size: 1rem; }

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.text-brand {
  color: var(--color-brand-primary);
}

.text-muted {
  color: var(--color-text-muted);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

section {
  padding: var(--space-5xl) 0;
  position: relative;
}

/* ==========================================================================
   Components - Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm); /* Sharp/Tech */
  transition: var(--transition-base);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-display);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-brand-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-brand-primary);
}

.btn-primary:hover {
  background: var(--color-brand-mid);
  transform: translateY(-2px);
  box-shadow: var(--shadow-tech);
  border-color: var(--color-accent-teal);
}

.btn-secondary {
  background: transparent;
  color: var(--color-brand-primary);
  border: 1px solid var(--color-brand-primary);
}

.btn-secondary:hover {
  background: var(--color-brand-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
}

/* ==========================================================================
   Components - Cards
   ========================================================================== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); /* Human-friendly soft corners */
  padding: var(--space-xl);
  transition: var(--transition-base);
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-tech);
  border-color: var(--color-accent-teal);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
  color: var(--color-brand-secondary);
}

.card-title {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.card-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: var(--transition-base);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(255, 255, 255, 0.95);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo img {
  height: 80px; /* Adjusted size */
  width: auto; 

}

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

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

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  transition: color 0.2s ease;
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  background: var(--color-bg-primary);
  overflow: hidden;
}

/* Technical Grid Overlay */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--color-border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-light) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
  z-index: 0;
  mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
}

.hero .hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
}

@media (max-width: 992px) {
  .hero .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }
  
  .hero-content {
    margin: 0 auto;
  }
}

.hero-content {
  max-width: 650px;
}

/* Tech Badge */
.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 12px;
  background: var(--color-brand-light);
  border: 1px solid var(--color-accent-teal);
  color: var(--color-brand-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 2px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 5px var(--color-accent-emerald);
}

.hero h1 {
  margin-bottom: var(--space-lg);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-brand-primary);
}

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

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 90%;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 992px) {
  .hero-cta {
    justify-content: center;
  }
}

/* Hero Specs / System Status */
.hero-specs {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

@media (max-width: 992px) {
  .hero-specs {
    justify-content: center;
  }
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.spec-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-brand-primary);
}

.spec-divider {
  width: 1px;
  height: 24px;
  background: var(--color-border);
}

/* Visual Card / Hybrid Human-AI Representation */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.visual-card {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4/3;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.visual-card::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px;
  height: 2px;
  background: var(--gradient-tech);
  z-index: 2;
}

.card-header {
  height: 40px;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
}

.window-controls {
  display: flex;
  gap: 6px;
}

.window-controls span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border-hover);
}

.card-title-mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.card-body-visual {
  flex: 1;
  position: relative;
  background: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Abstract Visualization */
.code-lines {
  position: absolute;
  left: 20px; top: 30px;
  width: 140px;
}

.line {
  height: 8px;
  background: var(--color-bg-secondary);
  margin-bottom: 8px;
  border-radius: 2px;
}

.node-network {
  position: relative;
  width: 200px;
  height: 150px;
}

.node {
  width: 12px; height: 12px;
  background: var(--color-brand-secondary);
  border-radius: 50%;
  position: absolute;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.n1 { top: 20%; left: 50%; }
.n2 { top: 70%; left: 20%; }
.n3 { top: 70%; left: 80%; }

.connection {
  position: absolute;
  height: 1px;
  background: var(--color-brand-secondary);
  opacity: 0.3;
  transform-origin: 0 50%;
}

.c1 {
  top: 23%; left: 50%; width: 90px;
  transform: rotate(115deg);
}

.c2 {
  top: 23%; left: 50%; width: 90px;
  transform: rotate(65deg);
}

.status-indicator {
  position: absolute;
  bottom: 20px; right: 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent-emerald);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Scroll */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {transform: translateX(-50%) translateY(0);}
  40% {transform: translateX(-50%) translateY(-10px);}
  60% {transform: translateX(-50%) translateY(-5px);}
}/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-brand-light);
  border-radius: var(--radius-full);
  color: var(--color-brand-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Services Section (Tech Grid)
   ========================================================================== */
.section-padding {
  padding: var(--space-4xl) 0;
}

.section-badge-tech {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-brand-primary);
  background: var(--color-brand-light);
  padding: 4px 8px;
  border-radius: 2px;
  border: 1px solid var(--color-border);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.section-badge-tech.accent-cyan {
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-accent-teal);
  border-color: rgba(0, 229, 255, 0.3);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.tech-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tech-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-brand-primary);
  box-shadow: var(--shadow-tech);
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
  background: var(--color-brand-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tech-card:hover::before {
  opacity: 1;
}

.tech-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.tech-card-header i {
  font-size: 1.5rem;
  color: var(--color-brand-primary);
}

.tech-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  opacity: 0.7;
}

.tech-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.tech-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   AI Section (Dark Mode)
   ========================================================================== */
.section-dark {
  background: var(--color-brand-primary); /* Deep Navy */
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.grid-overlay-dark {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
  pointer-events: none;
}

.relative-z {
  position: relative;
  z-index: 2;
}

.text-white { color: #FFFFFF !important; }
.text-gray-400 { color: #94a3b8 !important; }

.text-gradient-cyan {
  background: linear-gradient(135deg, #22d3ee 0%, #0ea5e9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ai-modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.ai-module {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 2px; /* For border gradient effect simulated via inner container if needed, or simple border */
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.ai-module:hover {
  border-color: var(--color-accent-teal);
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.05);
}

.module-content {
  padding: var(--space-lg);
}

.module-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(0, 229, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-teal);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

.ai-module h3 {
  font-size: 1.1rem;
  color: #FFFFFF;
  margin-bottom: var(--space-sm);
  font-family: var(--font-display);
}

.ai-module p {
  color: #bdcccf;
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.module-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-bar {
  height: 2px;
  background: var(--color-accent-teal);
  box-shadow: 0 0 8px var(--color-accent-teal);
  border-radius: 2px;
}

.stat-txt {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent-teal);
  text-align: right;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Industries Section
   ========================================================================== */
.industries {
  background: var(--color-bg-secondary);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.industry-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  transition: var(--transition-base);
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-brand-light);
}

.industry-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.industry-card h4 {
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

/* ==========================================================================
   Why Us Section
   ========================================================================== */
.why-us {
  background: var(--color-bg-primary);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.why-item {
  text-align: center;
  padding: var(--space-xl);
}

.why-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 1.5rem;
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
}

.why-item h4 {
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-xl) 0;
}

.cta-content h2 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-md);
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
  font-size: 1.0625rem;
}

.cta-content .btn {
  background: var(--color-bg-primary);
  color: var(--color-brand-primary);
  border: none;
  font-weight: 600;
}

.cta-content .btn:hover {
  background: var(--color-bg-secondary);
  transform: translateY(-2px);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--color-bg-secondary);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
}

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.footer-brand {
  max-width: 320px;
}

.footer-brand img {
  height: 80px;
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

.social-links a:hover {
  background: var(--color-brand-primary);
  border-color: var(--color-brand-primary);
  color: var(--color-text-inverse);
}

.footer-column h5 {
  margin-bottom: var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  font-weight: 600;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-column a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.footer-column a:hover {
  color: var(--color-brand-primary);
}

.footer-column i {
  margin-right: var(--space-sm);
  color: var(--color-brand-primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Animations & Interactions
   ========================================================================== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.2, 1, 0.3, 1), transform 0.8s cubic-bezier(0.2, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal.is-visible {
  opacity: 1;
  margin-top: 40px;
  transform: translateY(0);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* Hover Effects Enhancements */
.tech-card:hover .tech-id {
  color: var(--color-brand-primary);
}

.ai-module:hover .module-icon {
  background: var(--color-accent-teal);
  color: var(--color-brand-primary);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Responsive */
@media (max-width: 576px) {
  section {
    padding: var(--space-3xl) 0;
  }
  
  .hero {
    padding-top: 80px;
  }
  
  .hero h1 {
    font-size: 1.875rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .stat-number {
    font-size: 1.75rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
}