/* ============================================================================
   QI LABS - Data & AI Emergency Response Consultancy
   Main Stylesheet - Production-Quality CSS System
   ============================================================================ */

/* ============================================================================
   1. CSS RESET & ROOT VARIABLES
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  /* Color Palette */
  --bg-deepest: #05080f;
  --bg-dark: #080d17;
  --bg-card: #0d1424;
  --bg-elevated: #121b2e;
  --bg-hover: #162034;
  
  --cyan: #00d4ff;
  --cyan-dim: #009ab8;
  --purple: #7c3aed;
  --purple-light: #9d5cf5;
  --amber: #f59e0b;
  --red: #ef4444;
  --green: #10b981;
  
  --text-primary: #e8edf5;
  --text-secondary: #8899b4;
  --text-muted: #4d6080;
  
  --border-subtle: #162034;
  --border-default: #1e3050;
  --border-accent: rgba(0, 212, 255, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 5rem;
  --spacing-5xl: 6rem;
  
  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.02em;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.7);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.8);
  --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.3);
  
  /* 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: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Container */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* ============================================================================
   2. BASE TYPOGRAPHY & BODY STYLES
   ============================================================================ */

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-deepest) 0%, var(--bg-dark) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

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

a:hover {
  color: var(--cyan-dim);
}

small {
  font-size: var(--font-size-sm);
}

code {
  font-family: 'Monaco', 'Menlo', monospace;
  background: rgba(0, 212, 255, 0.1);
  color: var(--cyan);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
}

/* ============================================================================
   3. LAYOUT COMPONENTS
   ============================================================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
}

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

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-3xl) 0;
  }
}

@media (max-width: 480px) {
  .section {
    padding: var(--spacing-2xl) 0;
  }
}

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

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-2xl);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

.flex {
  display: flex;
  align-items: center;
}

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

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

/* ============================================================================
   4. NAVIGATION - NAVBAR
   ============================================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-lg) 0;
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(5, 8, 15, 0.9);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border-default);
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow-lg);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.nav-logo {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--bg-deepest);
  font-size: var(--font-size-lg);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-2xl);
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 600;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width var(--transition-base);
}

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

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

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 0.375rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.mobile-menu-btn span {
  width: 1.5rem;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.35rem, -0.35rem);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--bg-deepest) 0%, var(--bg-dark) 100%);
  z-index: 999;
  padding-top: 6rem;
  padding: var(--spacing-2xl);
  margin-top: 3.5rem;
}

.mobile-menu.active {
  display: flex;
  flex-direction: column;
}

.mobile-menu .nav-links {
  flex-direction: column;
  gap: var(--spacing-lg);
}

.mobile-menu .nav-link {
  font-size: var(--font-size-base);
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links {
    display: none;
  }
}

/* ============================================================================
   5. BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  text-decoration: none;
  white-space: nowrap;
  gap: var(--spacing-sm);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width var(--transition-fast), height var(--transition-fast);
  pointer-events: none;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #00a8cc);
  color: var(--bg-deepest);
  font-weight: 700;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
  transform: translateY(-2px);
}

/* Secondary Button */
.btn-secondary {
  background: linear-gradient(135deg, var(--purple), var(--purple-light));
  color: white;
  font-weight: 700;
  box-shadow: var(--shadow-glow-purple);
}

.btn-secondary:hover {
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.5);
  transform: translateY(-2px);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  border: 2px solid var(--border-default);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.1);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
}

.btn-ghost:hover {
  color: var(--cyan);
}

/* Small Button */
.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
}

/* Large Button */
.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-base);
}

/* Danger Button */
.btn-danger {
  background: linear-gradient(135deg, var(--red), #dc2626);
  color: white;
  font-weight: 700;
}

.btn-danger:hover {
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.5);
  transform: translateY(-2px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================================
   6. CARDS
   ============================================================================ */

.card {
  background: rgba(13, 20, 36, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(30, 48, 80, 0.6);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-glow {
  position: relative;
}

.card-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
  border-radius: var(--radius-xl);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

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

.card-glow::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card-glow:hover::after {
  opacity: 0.5;
}

/* Service Card */
.service-card {
  background: linear-gradient(135deg, rgba(13, 20, 36, 0.9), rgba(18, 27, 46, 0.7));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  border-color: var(--cyan);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.15);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
}

.service-card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.service-card-desc {
  flex-grow: 1;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Stat Card */
.stat-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(124, 58, 237, 0.05));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--cyan);
  transform: scale(1.05);
}

.stat-value {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

/* Testimonial Card */
.testimonial-card {
  background: rgba(13, 20, 36, 0.8);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  position: relative;
}

.testimonial-quote {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial-quote::before {
  content: '"';
  font-size: 3rem;
  color: rgba(0, 212, 255, 0.3);
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
}

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

.testimonial-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.testimonial-title {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Process Step */
.process-step {
  background: rgba(13, 20, 36, 0.6);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
}

.process-step:hover {
  border-color: var(--cyan);
  background: rgba(13, 20, 36, 0.8);
}

.process-step-number {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--bg-deepest);
  margin: 0 auto var(--spacing-lg);
}

.process-step-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.process-step-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ============================================================================
   7. BADGES
   ============================================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  background: rgba(30, 48, 80, 0.6);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  gap: var(--spacing-xs);
}

.badge-cyan {
  background: rgba(0, 212, 255, 0.15);
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.badge-purple {
  background: rgba(124, 58, 237, 0.15);
  color: var(--purple-light);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.badge-red {
  background: rgba(239, 68, 68, 0.15);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ============================================================================
   8. FORMS
   ============================================================================ */

.form-group {
  margin-bottom: var(--spacing-xl);
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
  background: rgba(13, 20, 36, 0.8);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(13, 20, 36, 0.95);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  font-family: var(--font-body);
}

.form-select {
  cursor: pointer;
}

.form-select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.form-error {
  color: var(--red);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-success {
  color: var(--green);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-group.error .form-input,
.form-group.error .form-textarea {
  border-color: var(--red);
  background: rgba(239, 68, 68, 0.05);
}

.form-group.success .form-input,
.form-group.success .form-textarea {
  border-color: var(--green);
  background: rgba(16, 185, 129, 0.05);
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

/* ============================================================================
   9. SECTIONS
   ============================================================================ */

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 4rem;
  overflow: hidden;
  background-image: radial-gradient(circle at 25% 40%, rgba(0, 212, 255, 0.06) 0%, transparent 50%),
                    radial-gradient(circle at 75% 70%, rgba(124, 58, 237, 0.06) 0%, transparent 50%),
                    radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: auto, auto, 32px 32px;
  background-position: 0 0, 0 0, 0 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  color: var(--cyan);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
  animation: fade-in 0.8s ease-out;
}

.hero-label::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: var(--font-size-6xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--cyan) 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slide-up 0.8s ease-out 0.1s both;
}

.hero-desc {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
  animation: slide-up 0.8s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-3xl);
  animation: slide-up 0.8s ease-out 0.3s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
  animation: fade-in 0.8s ease-out 0.4s both;
}

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

.hero-stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 6rem 0 4rem;
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-desc {
    font-size: var(--font-size-lg);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* Services Section */
.services-section {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 212, 255, 0.05) 100%);
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  color: var(--cyan);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.section-title {
  font-size: var(--font-size-5xl);
  max-width: 800px;
  margin-bottom: var(--spacing-2xl);
  line-height: var(--line-height-tight);
}

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--spacing-3xl);
}

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

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

/* Why Section - Pillars */
.why-section {
  position: relative;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-2xl);
}

.pillar-card {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(124, 58, 237, 0.08));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.pillar-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pillar-card:hover::before {
  transform: scaleX(1);
}

.pillar-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

.pillar-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.pillar-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}

/* Process Section */
.process-section {
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

.process-step {
  background: rgba(13, 20, 36, 0.6);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
}

.process-step:hover {
  border-color: var(--cyan);
  background: rgba(13, 20, 36, 0.8);
  transform: translateY(-4px);
}

.process-step-number {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--bg-deepest);
  margin: 0 auto var(--spacing-lg);
}

.process-step-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.process-step-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

/* Testimonials Section */
.testimonials-section {
  background: linear-gradient(180deg, transparent 0%, rgba(124, 58, 237, 0.05) 100%);
  position: relative;
}

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

@media (max-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* FAQ Section */
.faq-section {
  position: relative;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
  margin-top: var(--spacing-3xl);
}

.faq-item {
  background: rgba(13, 20, 36, 0.6);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: var(--cyan);
  box-shadow: var(--shadow-md);
}

.faq-question {
  padding: var(--spacing-xl);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-body);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--cyan);
}

.faq-icon {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
  font-size: var(--font-size-lg);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.faq-answer p {
  margin-bottom: var(--spacing-md);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* CTA Section */
.cta-section {
  position: relative;
  padding: var(--spacing-5xl) 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(124, 58, 237, 0.08));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  margin: var(--spacing-3xl) 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-tight);
}

.cta-desc {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.cta-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .cta-section {
    padding: var(--spacing-3xl) 0;
  }
  
  .cta-title {
    font-size: var(--font-size-4xl);
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ============================================================================
   10. FOOTER
   ============================================================================ */

.footer {
  background: linear-gradient(180deg, transparent 0%, rgba(5, 8, 15, 0.8) 100%);
  border-top: 1px solid var(--border-default);
  padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  margin-top: var(--spacing-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.footer-logo-mark {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--bg-deepest);
  font-size: var(--font-size-sm);
}

.footer-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.footer-section-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  list-style: none;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.footer-social {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 50%;
  color: var(--cyan);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: var(--font-size-lg);
}

.footer-social:hover {
  background: var(--cyan);
  color: var(--bg-deepest);
  transform: translateY(-2px);
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
  
  .footer-socials {
    justify-content: center;
  }
}

/* ============================================================================
   11. UTILITY CLASSES
   ============================================================================ */

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

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

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

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

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

.text-gradient {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }

/* ============================================================================
   12. ANIMATIONS
   ============================================================================ */

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.8);
  }
}

.fade-in {
  animation: fade-in 0.6s ease-out;
}

.slide-up {
  animation: slide-up 0.6s ease-out;
}

.slide-down {
  animation: slide-down 0.6s ease-out;
}

.slide-left {
  animation: slide-left 0.6s ease-out;
}

.slide-right {
  animation: slide-right 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-glow {
  animation: glow 3s infinite;
}

/* ============================================================================
   13. SCROLLBAR STYLING
   ============================================================================ */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--cyan-dim), var(--purple-light));
}

/* ============================================================================
   14. RESPONSIVE TYPOGRAPHY
   ============================================================================ */

@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  h3 {
    font-size: var(--font-size-2xl);
  }
  
  h4 {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  h3 {
    font-size: var(--font-size-xl);
  }
  
  p {
    font-size: var(--font-size-sm);
  }
}

/* ============================================================================
   15. FOCUS & ACCESSIBILITY
   ============================================================================ */

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px dashed var(--cyan);
  outline-offset: 4px;
}

/* ============================================================================
   16. DARK MODE ENHANCEMENTS & FINAL POLISH
   ============================================================================ */

/* Selection color */
::selection {
  background: rgba(0, 212, 255, 0.2);
  color: var(--text-primary);
}

/* Link animations */
a {
  position: relative;
}

a:not(.btn):not(.nav-link):not(.footer-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-fast);
}

a:not(.btn):not(.nav-link):not(.footer-link):hover::after {
  width: 100%;
}

/* Table styles */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-xl) 0;
}

th {
  background: rgba(0, 212, 255, 0.1);
  color: var(--cyan);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  border: 1px solid var(--border-default);
}

td {
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--border-subtle);
}

tr:hover {
  background: rgba(0, 212, 255, 0.05);
}

/* List styles */
ul, ol {
  margin: var(--spacing-lg) 0;
  padding-left: var(--spacing-xl);
}

li {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

/* Blockquote */
blockquote {
  border-left: 4px solid var(--cyan);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* HR */
hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-default), transparent);
  margin: var(--spacing-2xl) 0;
}

/* ============================================================================
   END OF STYLESHEET
   ============================================================================ */