/* ==========================================
   STARTLING CYBERSECURITY - DESIGN SYSTEM
   ========================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #2a2a2a;

  /* Accent Colors */
  --color-accent-cyan: #00f3ff;
  --color-accent-cyan-dark: #00d9ff;
  --color-accent-purple: #a855f7;
  --color-accent-purple-dark: #8b5cf6;

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-purple) 100%);
  --gradient-secondary: linear-gradient(135deg, #00f3ff22 0%, #a855f722 100%);
  --gradient-radial: radial-gradient(circle at 50% 50%, rgba(0, 243, 255, 0.1) 0%, transparent 50%);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: 3.5rem;

  /* Shadows & Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow-cyan: 0 0 20px rgba(0, 243, 255, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(168, 85, 247, 0.3);

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

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;
  overflow-x: hidden;
  position: relative;
}

/* Animated background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: -1;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

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

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
}

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

/* ==========================================
   LAYOUT
   ========================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-3xl) 0;
  position: relative;
}

/* ==========================================
   NAVIGATION
   ========================================== */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-base);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 1001;
}

.logo-text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
  transition: var(--transition-base);
  text-transform: uppercase;
}

.logo:hover .logo-text {
  letter-spacing: 0.2em;
  filter: drop-shadow(0 0 15px rgba(0, 243, 255, 0.5));
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-accent-cyan);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-accent-cyan);
}

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

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  font-size: var(--font-size-sm);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: var(--transition-slow);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 243, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent-cyan);
  border: 2px solid var(--color-accent-cyan);
}

.btn-secondary:hover {
  background: var(--color-accent-cyan);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

/* ==========================================
   HERO SECTION
   ========================================== */

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  animation: fadeInUp 1s ease;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  animation: fadeInUp 1.2s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

#services {
  background: var(--color-bg-secondary);
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.service-card.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition-base);
}

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

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: inline-block;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.service-card h3 {
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.service-card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==========================================
   TRUST/ABOUT SECTION
   ========================================== */

#trust {
  background: var(--color-bg-primary);
}

.trust-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.trust-text {
  opacity: 0;
  transform: translateX(-30px);
}

.trust-text.animate-in {
  animation: slideInLeft 0.8s ease forwards;
}

.trust-features {
  opacity: 0;
  transform: translateX(30px);
}

.trust-features.animate-in {
  animation: slideInRight 0.8s ease forwards;
}

@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent-cyan);
  transition: var(--transition-base);
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(8px);
}

.feature-icon {
  font-size: 1.5rem;
  color: var(--color-accent-cyan);
  flex-shrink: 0;
}

.feature-content h4 {
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.feature-content p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: var(--font-size-xs);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

#contact {
  background: var(--color-bg-secondary);
  position: relative;
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(30px);
}

.contact-container.animate-in {
  animation: fadeInUp 0.8s ease forwards;
}

.contact-intro {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.contact-info {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-2xl);
  gap: var(--space-lg);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  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);
  transition: var(--transition-base);
}

.contact-item:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.contact-icon {
  font-size: 2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-details h4 {
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.contact-link {
  color: var(--color-accent-cyan);
  text-decoration: none;
  font-size: var(--font-size-md);
  font-weight: 600;
  transition: var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-accent-purple);
}

.contact-form {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 243, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  text-align: center;
  margin-top: var(--space-lg);
}

.form-note {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: rgba(0, 243, 255, 0.05);
  border-left: 3px solid var(--color-accent-cyan);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

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

.form-note a:hover {
  color: var(--color-accent-purple);
  text-decoration: underline;
}

.form-note code {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  color: var(--color-accent-cyan);
  font-size: 0.9em;
}

/* ==========================================
   STATISTICS SECTION
   ========================================== */

#stats {
  background: var(--color-bg-primary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.stat-card {
  text-align: center;
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.stat-label {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ==========================================
   TESTIMONIALS SECTION
   ========================================== */

#testimonials {
  background: var(--color-bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  align-items: stretch;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-purple);
  box-shadow: var(--shadow-glow-purple);
}

.testimonial-content {
  margin-bottom: var(--space-lg);
}

.testimonial-content p {
  font-style: italic;
  color: var(--color-text-secondary);
  line-height: 1.8;
  position: relative;
  padding-left: var(--space-lg);
}

.testimonial-content p::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -10px;
  font-size: 3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.author-info h4 {
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.author-info p {
  color: var(--color-accent-cyan);
  font-size: var(--font-size-xs);
  margin: 0;
}

/* ==========================================
   CERTIFICATIONS SECTION
   ========================================== */

#certifications {
  background: var(--color-bg-primary);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
}

.cert-badge {
  text-align: center;
  padding: var(--space-lg);
  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);
  transition: var(--transition-base);
}

.cert-badge:hover {
  transform: translateY(-4px) scale(1.05);
  border-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.cert-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cert-badge h4 {
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  margin: 0;
}

/* ==========================================
   FAQ SECTION
   ========================================== */

#faq {
  background: var(--color-bg-secondary);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: var(--space-md);
  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);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: var(--color-accent-cyan);
}

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

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

.faq-icon {
  font-size: 1.5rem;
  color: var(--color-accent-cyan);
  transition: var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--space-lg) var(--space-md);
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}


/* ==========================================
   SCROLL TO TOP BUTTON
   ========================================== */

.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow-cyan);
  z-index: 999;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(0, 243, 255, 0.6);
}

.scroll-to-top svg {
  color: var(--color-bg-primary);
}

/* ==========================================
   FOOTER
   ========================================== */

footer {
  background: var(--color-bg-primary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-brand {
  max-width: 250px;
}

.footer-logo-text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  transition: var(--transition-base);
  text-transform: uppercase;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  margin: 0;
}

.footer-section h4 {
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  margin-bottom: var(--space-md);
}

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

.footer-links a,
.footer-contact a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition-fast);
  font-size: var(--font-size-sm);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-accent-cyan);
  padding-left: 5px;
}

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

.social-links a {
  color: var(--color-text-muted);
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
  color: var(--color-accent-cyan);
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.footer-bottom p {
  margin: 0;
}

.footer-phone {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-phone:hover {
  color: var(--color-accent-purple);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
  :root {
    --font-size-3xl: 2.5rem;
    --font-size-2xl: 2rem;
    --font-size-xl: 1.5rem;
  }

  /* Mobile Menu */
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    opacity: 0;
    animation: fadeInDown 0.3s forwards;
  }

  .nav-links.active li:nth-child(1) {
    animation-delay: 0.1s;
  }

  .nav-links.active li:nth-child(2) {
    animation-delay: 0.2s;
  }

  .nav-links.active li:nth-child(3) {
    animation-delay: 0.3s;
  }

  .nav-links.active li:nth-child(4) {
    animation-delay: 0.4s;
  }

  .nav-links.active li:nth-child(5) {
    animation-delay: 0.5s;
  }

  @keyframes fadeInDown {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .trust-content {
    grid-template-columns: 1fr;
  }

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    max-width: 100%;
  }

  .footer-links,
  .footer-contact {
    align-items: center;
  }

  .social-links {
    justify-content: center;
  }

  section {
    padding: var(--space-2xl) 0;
  }

  .contact-info {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-item {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

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

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

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

  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

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

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}