/* Andark Consulting - Modern CSS 2025 */

/* CSS Variables for Design System */
:root {
  /* Color Palette - Modern Tech Gradient */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --dark-gradient: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 100%);
  
  /* Solid Colors */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #00f2fe;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  --background-dark: #0a0a0a;
  --surface-color: rgba(255, 255, 255, 0.05);
  --border-color: rgba(255, 255, 255, 0.1);
  
  /* Shadows & Effects */
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
  --blur-backdrop: blur(20px);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Modern Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

/* Glass Morphism Utility */
.glass {
  background: var(--surface-color);
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
}

/* Canvas Background */
#canvas3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) var(--spacing-lg);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: var(--surface-color);
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
  border-bottom: 1px solid var(--border-color);
}

/* Large Background Logo - Completely separate from navbar */
.background-logo {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 120px;
  background-image: url('../images/logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.1;
  z-index: 100;
  pointer-events: none;
  transition: all 0.3s ease;
}

.scrolled .background-logo {
  opacity: 0.05;
  transform: translateX(-50%) scale(0.8);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 10;
  position: relative;
  justify-content: flex-start;
}

/* Logo image positioned within navbar */
.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
  transition: all 0.3s ease;
}

.logo-image:hover {
  filter: brightness(1.3) drop-shadow(0 0 10px rgba(102, 126, 234, 0.5));
  transform: scale(1.05);
}

.logo-text {
  display: none; /* Hidden by default, shown only when image fails to load */
  white-space: nowrap;
}

/* Hide text logo on small screens if you prefer logo-only */
@media (max-width: 480px) {
  .logo-text {
    display: none !important; /* Force hidden on mobile even if image fails */
  }
  
  .logo-image {
    height: 35px;
  }
  
  .background-logo {
    width: 100px;
    height: 100px;
    opacity: 0.08;
  }
}

/* Tablet responsiveness */
@media (max-width: 768px) and (min-width: 481px) {
  .logo-image {
    height: 38px;
  }
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 var(--spacing-lg);
}

.hero-content {
  max-width: 800px;
  z-index: 2;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  font-weight: 400;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--accent-gradient);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-glow);
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

/* Sections */
.section {
  padding: var(--spacing-2xl) var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-card {
  background: var(--surface-color);
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.section-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.service-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all 0.3s ease;
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
}

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

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.service-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.service-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
}

.contact-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--accent-color);
}

.contact-info h4 {
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-info p,
.contact-info a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-info a:hover {
  color: var(--accent-color);
}

/* Footer */
.footer {
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer p {
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  margin: var(--spacing-md) 0;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}

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

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
}

/* Hide specific social links */
.social-links a[href*="linkedin"],
.social-links a[href*="github"] {
  display: none;
}

.social-links a:hover {
  background: var(--accent-gradient);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* AI Chat Widget */
.ai-chat-widget {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-xl);
}
.cta-button--sm 
{ 
  padding: 8px 14px; 
  font-size: 0.95rem; 
  border-radius: var(--radius-md); 
  box-shadow: var(--shadow-glow); 
} 

.nav-links a.nav-cta 
{ 
  line-height: 1; 
} 

.nav-links a.nav-cta::after 
{ 
  display: none; 
}

.chat-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-md);
}

.chat-header h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
}

.chat-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.chat-messages {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.2);
}

.chat-message {
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  animation: fadeInMessage 0.3s ease-out;
}

.bot-message {
  justify-content: flex-start;
}

.user-message {
  justify-content: flex-end;
}

.message-content {
  max-width: 80%;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.4;
}

.bot-message .message-content {
  background: var(--primary-gradient);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

.user-message .message-content {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-bottom-right-radius: 4px;
}

.chat-input-container {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

#chatInput {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

#chatInput:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

#chatInput::placeholder {
  color: var(--text-muted);
}

.chat-send-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--accent-gradient);
  color: var(--text-primary);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.chat-send-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.chat-send-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.chat-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
}

/* Typing indicator animation */
.typing-indicator {
  opacity: 0.7;
}

.typing-content {
  background: var(--primary-gradient) !important;
  color: var(--text-primary) !important;
  min-height: 20px;
  display: flex;
  align-items: center;
}

.typing-dots {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.typing-dots span {
  display: inline-block;
  animation: typing-dot 1.5s infinite;
  font-size: 1.2em;
  line-height: 1;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.3s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes typing-dot {
  0%, 60%, 100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

/* Enhanced chat message animations */
.chat-message {
  animation: fadeInMessage 0.3s ease-out;
}

@keyframes fadeInMessage {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .navbar {
    padding-left: var(--spacing-lg); /* Reset mobile navbar spacing */
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-color);
    backdrop-filter: var(--blur-backdrop);
    -webkit-backdrop-filter: var(--blur-backdrop);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin: var(--spacing-sm);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .hero {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }
  
  .contact-icon {
    font-size: 1.8rem;
  }
  
  .contact-info h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
  }
  
  .contact-info p,
  .contact-info a {
    font-size: 0.9rem;
    word-break: break-word;
  }
  
  /* AI Chat Widget Mobile Fixes */
  .ai-chat-widget {
    margin: 0 var(--spacing-sm) var(--spacing-xl) var(--spacing-sm);
    padding: var(--spacing-md);
  }
  
  .chat-input-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  #chatInput {
    width: 100%;
    min-width: 0;
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  .chat-send-btn {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
  }
  
  .chat-header h3 {
    font-size: 1.1rem;
  }
  
  .chat-header p {
    font-size: 0.85rem;
  }
  
  .chat-messages {
    max-height: 250px;
    padding: var(--spacing-xs);
  }
  
  .message-content {
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

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

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

/* Utility Classes */
.text-center { text-align: center; }
.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Loading States */
body {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

body.loaded {
  opacity: 1;
}

.section-card,
.service-item,
.contact-item {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.section-card.loaded,
.service-item.loaded,
.contact-item.loaded,
.animate-fade-in-up {
  opacity: 1;
  transform: translateY(0);
}

/* Scroll Indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--accent-gradient);
  z-index: 9999;
  transition: width 0.3s ease;
}

/* Email Protection Styles */
.email-protected {
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--accent-color);
}

.email-protected:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.email-protected::after {
  content: " 🔒";
  font-size: 0.8em;
  opacity: 0.7;
  margin-left: 0.3em;
}

.email-revealed::after {
  display: none;
}

#email-link[data-user]:not([href^="mailto"]):hover {
  transform: translateY(-1px);
  color: var(--accent-color);
}

/* About Section Centering Fix */
.about-content-centered {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--text-secondary);
  line-height: 1.8;
}
.about-paragraph {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
  text-align: center;
}
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  width: 100%;
}
.about-stat-number {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: var(--spacing-xs);
  text-align: center;
}
.about-stat-label {
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}
@media (max-width: 768px) {
  .about-content-centered {
    padding: 0 var(--spacing-sm);
  }
  .about-stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}