/* Futuristic AI Theme - Clean & Cohesive */

/* CSS Variables for Futuristic AI Theme */
:root {
  /* Primary Colors - Based on JD Favicon */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #111111;
  --bg-card: #1a1a1a;
  --bg-glass: rgba(26, 26, 26, 0.9);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #a0a0a0;
  
  /* Accent Colors - Inspired by favicon geometry */
  --accent-primary: #ffffff;
  --accent-secondary: #f0f0f0;
  --accent-tertiary: #d0d0d0;
  --accent-highlight: #00d4ff;
  --accent-warm: #ff6b35;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
  --gradient-secondary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  --gradient-ai: linear-gradient(135deg, #ffffff 0%, #00d4ff 50%, #f0f0f0 100%);
  --gradient-text: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(255, 255, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(255, 255, 255, 0.15);
  --shadow-lg: 0 8px 32px rgba(255, 255, 255, 0.2);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
  
  /* Borders */
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --border-color: #333333;
  --border-accent: #ffffff;
  --border-glow: 1px solid rgba(255, 255, 255, 0.2);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --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: 2rem;
  --font-size-4xl: 2.5rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --nav-height: 80px;
  --container-max-width: 1400px;
}

/* Light Theme Variant */
:root[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.9);
  
  --text-primary: #000000;
  --text-secondary: #1e293b;
  --text-muted: #475569;
  
  --border-color: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
}

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

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

/* Subtle Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.02) 0%, transparent 50%),
    linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.01) 50%, transparent 60%);
  background-size: 200px 200px, 300px 300px, 500px 500px;
  background-position: 0 0, 100px 100px, 300px 300px;
  pointer-events: none;
  z-index: -1;
}

/* Light theme background adjustment */
:root[data-theme="light"] body::before {
  background: 
    radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 0, 0, 0.02) 0%, transparent 50%),
    linear-gradient(45deg, transparent 40%, rgba(0, 212, 255, 0.01) 50%, transparent 60%);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Light theme gradient text adjustments */
:root[data-theme="light"] h1,
:root[data-theme="light"] h2,
:root[data-theme="light"] h3,
:root[data-theme="light"] h4,
:root[data-theme="light"] h5,
:root[data-theme="light"] h6 {
  color: #000000;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

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); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

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

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: var(--border-glow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  z-index: 1000;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: var(--font-size-xl);
  transition: all var(--transition-normal);
}

.nav-favicon {
  width: 40px;
  height: 40px;
  margin-right: var(--spacing-sm);
  transition: all var(--transition-normal);
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.3));
}

/* Light theme favicon adjustment */
:root[data-theme="light"] .nav-favicon {
  filter: invert(1) drop-shadow(0 0 5px rgba(0, 0, 0, 0.3));
}

.nav-name {
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Light theme nav name gradient */
:root[data-theme="light"] .nav-name {
  color: #00d4ff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.nav-logo:hover .nav-favicon {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.8));
}

.nav-logo:hover .nav-name {
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}



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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  position: relative;
}

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

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

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

/* Light theme navigation link hover effects */
:root[data-theme="light"] .nav-links a {
  color: #1e293b;
}

:root[data-theme="light"] .nav-links a:hover,
:root[data-theme="light"] .nav-links a.active {
  color: #00d4ff;
}

:root[data-theme="light"] .nav-links a::after {
  background: #00d4ff;
}

#theme-toggle {
  background: var(--bg-glass);
  border: var(--border-glow);
  color: var(--accent-highlight);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 50px;
  cursor: pointer;
  font-size: var(--font-size-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
  min-width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#theme-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

#theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--accent-highlight);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

#theme-toggle:hover::before {
  left: 100%;
}

#theme-toggle:active {
  transform: translateY(0);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.2);
}

/* Mobile menu toggle - hidden on desktop */
.mobile-menu-toggle {
  display: none;
}

/* Light theme toggle styling */
:root[data-theme="light"] #theme-toggle {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: #00d4ff;
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

:root[data-theme="light"] #theme-toggle:hover {
  background: rgba(255, 255, 255, 1);
  border-color: #00d4ff;
  color: #000000;
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

/* Theme toggle pulse animation */
#theme-toggle {
  animation: themeTogglePulse 3s ease-in-out infinite;
}

@keyframes themeTogglePulse {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
  }
  50% {
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
  }
}

:root[data-theme="light"] #theme-toggle {
  animation: themeTogglePulseLight 3s ease-in-out infinite;
}

@keyframes themeTogglePulseLight {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
  }
  50% {
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
  }
}

/* Ripple animation for theme toggle */
@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + var(--spacing-xl)) 5% var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  width: 100%;
  max-width: var(--container-max-width);
  position: relative;
  z-index: 2;
}

/* Animated Background Elements */
.hero-bg-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Floating Cubes */
.floating-cube {
  position: absolute;
  width: 30px;
  height: 30px;
  border: 2px solid var(--accent-highlight);
  border-radius: 6px;
  opacity: 0.4;
  animation: floatCube 6s ease-in-out infinite;
}

.cube-1 {
  top: -20px;
  left: -30px;
  animation-delay: 0s;
}



.cube-3 {
  bottom: -35px;
  right: -40px;
  animation-delay: 4s;
}

@keyframes floatCube {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg);
    opacity: 0.4;
  }
  50% { 
    transform: translateY(-15px) rotate(90deg);
    opacity: 0.7;
  }
}

/* Network Lines */
.network-lines {
  position: absolute;
  width: 100%;
  height: 100%;
}

.line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--accent-highlight), transparent);
  height: 1px;
  opacity: 0.2;
  animation: pulseLine 4s ease-in-out infinite;
}

.line-1 {
  top: 25%;
  left: 0;
  width: 30%;
  animation-delay: 0s;
}

.line-2 {
  top: 45%;
  right: 0;
  width: 25%;
  animation-delay: 1s;
}

.line-3 {
  bottom: 35%;
  left: 10%;
  width: 40%;
  animation-delay: 2s;
}

.line-4 {
  top: 70%;
  right: 20%;
  width: 35%;
  animation-delay: 3s;
}

@keyframes pulseLine {
  0%, 100% { opacity: 0.1; }
  50% { opacity: 0.4; }
}



.hero-bg-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.03;
  z-index: 0;
  pointer-events: none;
}

.hero-logo-bg {
  width: 400px;
  height: 400px;
  filter: blur(2px);
  animation: float 6s ease-in-out infinite;
}

/* Light theme hero logo background adjustment */
:root[data-theme="light"] .hero-logo-bg {
  filter: invert(1) blur(2px);
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-text {
  flex: 1;
  position: relative;
  z-index: 1;
}

/* Hero Greeting */
.hero-greeting {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.greeting-text {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  font-weight: 500;
  font-family: var(--font-mono);
  text-align: center;
}

/* Light theme greeting text */
:root[data-theme="light"] .greeting-text {
  color: #1e293b;
}

.typing-cursor {
  width: 3px;
  height: 1.2em;
  background: var(--accent-highlight);
  animation: blink 1s infinite;
  margin-left: 0;
  box-shadow: 0 0 10px var(--accent-highlight);
  display: inline-block;
  vertical-align: baseline;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Hero Title */
.hero-title {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.hero-title h1 {
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 900;
  line-height: 1.1;
  font-family: var(--font-mono);
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0;
}

.title-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(20px);
  opacity: 0.5;
  z-index: 1;
}



.hero-name {
  font-weight: 900;
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.3));
}

/* Light theme hero name gradient */
:root[data-theme="light"] .hero-name {
  color: #00d4ff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.3));
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  line-height: 1.7;
  font-weight: 400;
}

/* Light theme hero description */
:root[data-theme="light"] .hero-description {
  color: #1e293b;
}

/* Hero CTA Buttons */
.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.cta-primary {
  position: relative;
  background: var(--accent-highlight);
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
  overflow: hidden;
}

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

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.cta-primary:hover .cta-glow {
  left: 100%;
}

.cta-secondary {
  position: relative;
  background: transparent;
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
  border: 2px solid var(--accent-highlight);
}

.cta-border {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 2px solid var(--accent-highlight);
  border-radius: var(--border-radius);
  transition: all var(--transition-normal);
}

.cta-secondary:hover {
  background: var(--accent-highlight);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.cta-secondary:hover .cta-border {
  transform: scale(1.05);
  opacity: 0.5;
}

.hero-text p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  line-height: 1.7;
}

/* Light theme hero text paragraph */
:root[data-theme="light"] .hero-text p {
  color: #1e293b;
}

.hero-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.tag {
  background: var(--bg-glass);
  color: var(--accent-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: var(--border-glow);
  transition: all var(--transition-normal);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  position: relative;
  overflow: hidden;
}

/* Light theme tag styling */
:root[data-theme="light"] .tag {
  background: rgba(255, 255, 255, 0.9);
  color: #00d4ff;
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.tag:hover::before {
  left: 100%;
}

.tag:hover {
  color: var(--text-primary);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-highlight);
  background: var(--bg-card);
}

/* Light theme tag hover state */
:root[data-theme="light"] .tag:hover {
  color: #000000;
  background: #ffffff;
  border-color: #00d4ff;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.tag-icon {
  font-size: var(--font-size-base);
  transition: transform var(--transition-normal);
}

.tag:hover .tag-icon {
  transform: rotate(360deg);
}

.tag-text {
  position: relative;
  z-index: 1;
}

/* Tooltip */
.tag[data-tooltip] {
  position: relative;
}

.tag[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 1000;
  border: var(--border-glow);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xs);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-pic {
  max-width: 400px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
  background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
              var(--gradient-ai) border-box;
  position: relative;
  z-index: 2;
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-ai);
  border-radius: var(--border-radius-lg);
  filter: blur(30px);
  opacity: 0.3;
  z-index: 1;
  animation: pulseGlow 3s ease-in-out infinite;
}

.image-border {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border: 2px solid var(--accent-highlight);
  border-radius: var(--border-radius-lg);
  opacity: 0.5;
  z-index: 1;
  animation: rotateBorder 10s linear infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.2; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.4; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes rotateBorder {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.profile-pic:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

/* Floating Elements */
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

.float-icon {
  position: absolute;
  font-size: var(--font-size-xl);
  animation: floatIcon 4s ease-in-out infinite;
  opacity: 0.7;
}

.float-1 {
  top: 10%;
  right: 10%;
  animation-delay: 0s;
}

.float-2 {
  bottom: 20%;
  left: 5%;
  animation-delay: 1s;
}

.float-3 {
  top: 60%;
  right: 5%;
  animation-delay: 2s;
}

@keyframes floatIcon {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg);
    opacity: 0.5;
  }
  50% { 
    transform: translateY(-15px) rotate(10deg);
    opacity: 0.9;
  }
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) 5%;
  scroll-margin-top: calc(var(--nav-height) + 40px); /* Ensures proper scroll positioning */
}

/* Section Headers */
h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  position: relative;
  scroll-margin-top: calc(var(--nav-height) + 40px);
}

h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-ai);
  border-radius: 2px;
}

/* Light theme section titles */
:root[data-theme="light"] h2 {
  color: #00d4ff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

/* Project Feature Cards */
.projects-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.project-feature-card {
  background: var(--bg-glass);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: var(--border-glow);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

/* Light theme project feature card borders */
:root[data-theme="light"] .project-feature-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

.project-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-ai);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  z-index: 2;
}

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

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

/* Project Feature Icon */
.project-feature-icon {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-icon {
  font-size: 2.5rem;
  z-index: 2;
  position: relative;
  transition: transform var(--transition-normal);
}

.project-icon-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-ai);
  border-radius: 50%;
  filter: blur(20px);
  opacity: 0.3;
  transition: all var(--transition-normal);
}

.project-feature-card:hover .project-icon {
  transform: scale(1.1);
}

.project-feature-card:hover .project-icon-glow {
  opacity: 0.6;
  transform: translate(-50%, -50%) scale(1.2);
}

/* Project Feature Content */
.project-feature-content {
  position: relative;
  z-index: 1;
}

.project-badge {
  display: inline-block;
  background: var(--accent-highlight);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.project-feature-content h3 {
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Light theme project feature card title gradient */
:root[data-theme="light"] .project-feature-content h3 {
  color: #00d4ff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.project-feature-description {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
}

/* Light theme project feature description */
:root[data-theme="light"] .project-feature-description {
  color: #1e293b;
}

/* Project Highlights */
.project-feature-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

/* Light theme highlight items */
:root[data-theme="light"] .highlight-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.highlight-item:hover {
  border-color: var(--accent-highlight);
  background: var(--bg-card);
  transform: translateX(5px);
}

.highlight-icon {
  font-size: var(--font-size-base);
  color: var(--accent-highlight);
}

.highlight-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

/* Light theme highlight text */
:root[data-theme="light"] .highlight-text {
  color: #1e293b;
}

/* Project Technology Tags */
.project-feature-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.tech-item {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.tech-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.tech-item:hover::before {
  left: 100%;
}

.tech-item:hover {
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--accent-highlight);
  background: var(--bg-card);
}

/* Project Actions */
.project-feature-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.project-feature-btn {
  background: var(--accent-highlight);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.project-feature-btn::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: left var(--transition-slow);
}

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

.project-feature-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.project-date {
  color: var(--accent-highlight);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Project Feature Glow Effect */
.project-feature-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-ai);
  border-radius: var(--border-radius-lg);
  filter: blur(30px);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.project-feature-card:hover .project-feature-glow {
  opacity: 0.1;
}

/* Section Subtitle */
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Skills Features */
.skills-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background: var(--bg-glass);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: var(--border-glow);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

/* Light theme feature card borders */
:root[data-theme="light"] .feature-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-ai);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  z-index: 2;
}

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

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

/* Feature Icon */
.feature-icon {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon {
  font-size: 2.5rem;
  z-index: 2;
  position: relative;
  transition: transform var(--transition-normal);
}

.icon-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-ai);
  border-radius: 50%;
  filter: blur(20px);
  opacity: 0.3;
  transition: all var(--transition-normal);
}

.feature-card:hover .icon {
  transform: scale(1.1);
}

.feature-card:hover .icon-glow {
  opacity: 0.6;
  transform: translate(-50%, -50%) scale(1.2);
}

/* Feature Content */
.feature-card h3 {
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Light theme feature card title gradient */
:root[data-theme="light"] .feature-card h3 {
  color: #00d4ff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.feature-description {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
}

/* Light theme feature description */
:root[data-theme="light"] .feature-description {
  color: #1e293b;
}

.feature-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.skill-item {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* Light theme skill items */
:root[data-theme="light"] .skill-item {
  background: #f8fafc;
  color: #1e293b;
  border: 1px solid #e2e8f0;
}

.skill-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.skill-item:hover::before {
  left: 100%;
}

.skill-item:hover {
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--accent-highlight);
  background: var(--bg-card);
}

/* Feature Glow Effect */
.feature-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-ai);
  border-radius: var(--border-radius-lg);
  filter: blur(30px);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.feature-card:hover .feature-glow {
  opacity: 0.1;
}

/* Timeline */
.timeline {
  position: relative;
  margin: var(--spacing-lg) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-secondary);
}

.timeline-item {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
  position: relative;
  background: var(--bg-glass);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: var(--border-glow);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

/* Light theme timeline item borders */
:root[data-theme="light"] .timeline-item {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -6px;
  top: var(--spacing-lg);
  width: 12px;
  height: 12px;
  background: var(--accent-highlight);
  border-radius: 50%;
  box-shadow: var(--shadow-glow);
}

.timeline-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-highlight);
}

.timeline-item h4 {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
  font-weight: 700;
}

/* Light theme timeline text */
:root[data-theme="light"] .timeline-item h4 {
  color: #000000;
}

.timeline-date {
  color: var(--accent-highlight);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-item p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

/* Light theme timeline paragraph text */
:root[data-theme="light"] .timeline-item p {
  color: #1e293b;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.contact-info {
  background: var(--bg-glass);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: var(--border-glow);
  text-align: center;
  backdrop-filter: blur(10px);
}

/* Light theme contact info borders */
:root[data-theme="light"] .contact-info {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

.contact-item {
  margin-bottom: var(--spacing-lg);
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-item h4 {
  color: var(--accent-highlight);
  margin-bottom: var(--spacing-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
  padding: var(--spacing-xs) 0;
}

/* Light theme contact links */
:root[data-theme="light"] .contact-item a {
  color: #1e293b;
}

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

.contact-item p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Light theme contact text */
:root[data-theme="light"] .contact-item p {
  color: #1e293b;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--bg-glass);
  border: var(--border-glow);
  border-radius: 50%;
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: all var(--transition-normal);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-highlight);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-highlight);
}

/* Light theme back to top button */
:root[data-theme="light"] .back-to-top {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: #00d4ff;
}

:root[data-theme="light"] .back-to-top:hover {
  background: #00d4ff;
  color: #ffffff;
  border-color: #00d4ff;
}

/* Footer */
footer {
  background: var(--bg-glass);
  padding: var(--spacing-lg);
  border-top: var(--border-glow);
  margin-top: var(--spacing-xl);
  backdrop-filter: blur(10px);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  gap: var(--spacing-lg);
}

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

.footer-typing-separator {
  width: 100px;
  height: 2px;
  background: var(--gradient-ai);
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}

.footer-typing-separator::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--accent-highlight);
  animation: typingSeparator 3s ease-in-out infinite;
}

@keyframes typingSeparator {
  0%, 100% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
}

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

.footer-favicon {
  width: 30px;
  height: 30px;
  transition: all var(--transition-normal);
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.3));
}

/* Light theme footer favicon adjustment */
:root[data-theme="light"] .footer-favicon {
  filter: invert(1) drop-shadow(0 0 5px rgba(0, 0, 0, 0.3));
}

.footer-logo:hover .footer-favicon {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.6));
}

.footer-logo p {
  color: var(--text-secondary);
  margin: 0;
  font-weight: 500;
  position: relative;
  display: inline-block;
}

.footer-logo p::after {
  content: '|';
  color: var(--accent-highlight);
  animation: footerBlink 1.5s infinite;
  margin-left: 2px;
}

@keyframes footerBlink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

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

.social-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
  padding: var(--spacing-xs);
  border-radius: var(--border-radius);
  opacity: 0;
  transform: translateY(10px);
  animation: fadeInUp 0.6s ease forwards;
}

.social-links a:nth-child(1) {
  animation-delay: 0.2s;
}

.social-links a:nth-child(2) {
  animation-delay: 0.4s;
}

.social-links a:nth-child(3) {
  animation-delay: 0.6s;
}

.social-links a:hover {
  color: var(--accent-highlight);
  transform: translateY(-2px);
}

/* Project Detail Pages */
.project-detail-page {
  padding-top: calc(var(--nav-height) + var(--spacing-lg));
}

.project-detail-header {
  margin-bottom: var(--spacing-xl);
}

.back-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-normal);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
}

.back-link:hover {
  color: var(--text-primary);
  transform: translateX(-5px);
}

.project-detail-header h1 {
  font-size: var(--font-size-4xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 800;
}

.project-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  align-items: start;
}

.project-hero-image {
  width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  border: 2px solid transparent;
  background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
              var(--gradient-ai) border-box;
}

.project-hero-info h2 {
  color: var(--accent-primary);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.project-hero-info p {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.project-sections {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.project-section h3 {
  color: var(--accent-primary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-section p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.project-section ul,
.project-section ol {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  padding-left: var(--spacing-lg);
}

.project-section li {
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.project-section li::before {
  content: '▸';
  color: var(--accent-primary);
  font-weight: bold;
  position: absolute;
  left: -20px;
}

.project-section strong {
  color: var(--accent-primary);
  font-weight: 700;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: calc(var(--nav-height) + var(--spacing-lg)) 5% var(--spacing-lg);
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: var(--font-size-lg);
  }

  .hero-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-lg);
  }

  .hero-title h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-tags {
    justify-content: center;
  }

  .profile-pic {
    max-width: 300px;
  }

  .floating-cube {
    width: 20px;
    height: 20px;
    border-width: 1px;
  }

  .line {
    display: none;
  }

  .nav-links {
    display: flex;
    gap: var(--spacing-sm);
  }

  .projects-features {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .project-feature-card {
    padding: var(--spacing-lg);
  }

  .project-feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
  }

  .project-icon {
    font-size: 2rem;
  }

  .project-feature-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .project-hero {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .skills-features {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .feature-card {
    padding: var(--spacing-lg);
  }

  .feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
  }

  .icon {
    font-size: 2rem;
  }

  .container {
    padding: var(--spacing-lg) 5%;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-typing-separator {
    width: 80px;
  }

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

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

.project-card,
.skills-group,
.timeline-item {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.skills-group:nth-child(1) { animation-delay: 0.1s; }
.skills-group:nth-child(2) { animation-delay: 0.2s; }
.skills-group:nth-child(3) { animation-delay: 0.3s; }
.skills-group:nth-child(4) { animation-delay: 0.4s; }
.skills-group:nth-child(5) { animation-delay: 0.5s; }
.skills-group:nth-child(6) { animation-delay: 0.6s; }

/* Enhanced Mobile Responsive Design */
@media (max-width: 768px) {
  /* Navigation */
  nav {
    padding: var(--spacing-sm) 5%;
    justify-content: space-between;
  }

  .nav-logo {
    gap: var(--spacing-xs);
  }

  .nav-name {
    font-size: var(--font-size-base);
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    font-size: var(--font-size-lg);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  /* Mobile menu toggle */
  .mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: all var(--transition-normal);
    order: 2;
  }

  .mobile-menu-toggle:hover {
    color: var(--accent-highlight);
    transform: scale(1.1);
  }

  /* Mobile navigation layout */
  nav {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .nav-logo {
    order: 1;
  }

  .mobile-menu-toggle {
    order: 2;
  }

  #theme-toggle {
    order: 3;
  }

  /* Hero Section */
  .hero {
    padding: calc(var(--nav-height) + var(--spacing-lg)) 5% var(--spacing-lg);
    min-height: 100vh;
  }

  .hero-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xl);
  }

  .hero-greeting {
    justify-content: center;
    width: 100%;
  }

  .hero-title h1 {
    font-size: var(--font-size-2xl);
    line-height: 1.2;
  }

  .hero-description {
    font-size: var(--font-size-base);
    line-height: 1.6;
  }

  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
  }

  .cta-primary,
  .cta-secondary {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }

  .hero-tags {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
  }

  .tag {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  /* Profile Image */
  .hero-image {
    order: -1;
  }

  .profile-pic {
    max-width: 250px;
    width: 100%;
  }

  .floating-cube {
    width: 15px;
    height: 15px;
    border-width: 1px;
  }

  .float-icon {
    font-size: var(--font-size-base);
  }

  /* Background Elements */
  .line {
    display: none;
  }

  .hero-bg-logo {
    opacity: 0.1;
  }

  /* Sections */
  .container {
    padding: var(--spacing-lg) 5%;
  }

  h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
  }

  /* Projects */
  .projects-features {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .project-feature-card {
    padding: var(--spacing-lg);
  }

  .project-feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
  }

  .project-icon {
    font-size: 1.5rem;
  }

  .project-feature-content h3 {
    font-size: var(--font-size-lg);
  }

  .project-feature-description {
    font-size: var(--font-size-sm);
  }

  .project-feature-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .project-feature-btn {
    width: 100%;
    text-align: center;
  }

  /* Skills */
  .skills-features {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .feature-card {
    padding: var(--spacing-lg);
  }

  .feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
  }

  .icon {
    font-size: 1.5rem;
  }

  .feature-card h3 {
    font-size: var(--font-size-lg);
  }

  .feature-description {
    font-size: var(--font-size-sm);
  }

  /* Timeline */
  .timeline-item {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .timeline-item h4 {
    font-size: var(--font-size-base);
  }

  .timeline-item p {
    font-size: var(--font-size-sm);
  }

  /* Contact */
  .contact-info {
    padding: var(--spacing-lg);
  }

  .contact-item {
    margin-bottom: var(--spacing-md);
  }

  .contact-item h4 {
    font-size: var(--font-size-base);
  }

  .contact-item a,
  .contact-item p {
    font-size: var(--font-size-sm);
  }

  /* Footer */
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-typing-separator {
    width: 60px;
  }

  .social-links {
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
  }

  .social-links a {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  /* Back to Top */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: var(--font-size-lg);
  }

  /* Theme Toggle */
  #theme-toggle {
    width: 45px;
    height: 45px;
    font-size: var(--font-size-base);
  }
}

/* Extra Small Devices */
@media (max-width: 480px) {
  .hero {
    padding: calc(var(--nav-height) + var(--spacing-md)) 3% var(--spacing-md);
  }

  .hero-title h1 {
    font-size: var(--font-size-xl);
  }

  .hero-description {
    font-size: var(--font-size-sm);
  }

  .profile-pic {
    max-width: 200px;
  }

  .container {
    padding: var(--spacing-md) 3%;
  }

  .project-feature-card,
  .feature-card {
    padding: var(--spacing-md);
  }

  .cta-primary,
  .cta-secondary {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }

  .tag {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs);
  }

  .floating-cube {
    width: 12px;
    height: 12px;
  }

  .float-icon {
    font-size: var(--font-size-sm);
  }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: calc(var(--nav-height) + var(--spacing-md)) 5% var(--spacing-md);
  }

  .hero-content {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  .hero-image {
    order: 0;
  }

  .profile-pic {
    max-width: 150px;
  }
}