/*
  Modern Portfolio Design System
  Author: Siddharth Bhavsar
  Version: 2.0
  Date: December 2025
*/

/* ==========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ========================================== */

:root {
  /* Cyberpunk/Sci-Fi AI Theme - Neon Colors */
  --color-primary: #00ffff;
  --color-primary-dark: #00cccc;
  --color-primary-light: #66ffff;
  
  --color-secondary: #ff00ff;
  --color-secondary-dark: #cc00cc;
  --color-secondary-light: #ff66ff;
  
  --color-accent: #00ff41;
  --color-accent-dark: #00cc34;
  --color-accent-light: #66ff7a;
  
  --color-neon-blue: #00ffff;
  --color-neon-pink: #ff00ff;
  --color-neon-green: #00ff41;
  --color-neon-purple: #b800ff;
  --color-neon-yellow: #ffff00;
  
  --color-success: #00ff41;
  --color-warning: #ffff00;
  --color-error: #ff0055;
  
  /* Deep Dark Backgrounds */
  --color-bg-primary: #000000;
  --color-bg-secondary: #0a0a0a;
  --color-bg-tertiary: #111111;
  --color-bg-card: rgba(10, 10, 10, 0.95);
  --color-bg-glass: rgba(0, 255, 255, 0.03);
  
  /* Text Colors with Neon Tint */
  --color-text-primary: #ffffff;
  --color-text-secondary: #00ffff;
  --color-text-tertiary: #8888ff;
  --color-text-muted: #666699;
  
  /* Neon Border Colors */
  --color-border: rgba(0, 255, 255, 0.3);
  --color-border-hover: rgba(0, 255, 255, 0.6);
  --color-border-glow: rgba(255, 0, 255, 0.4);
  
  /* Cyberpunk Gradients */
  --gradient-primary: linear-gradient(135deg, #00ffff 0%, #ff00ff 50%, #00ff41 100%);
  --gradient-secondary: linear-gradient(135deg, #ff00ff 0%, #b800ff 100%);
  --gradient-accent: linear-gradient(135deg, #00ff41 0%, #00ffff 100%);
  --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
  --gradient-neon: linear-gradient(90deg, #00ffff, #ff00ff, #00ff41, #ffff00);
  
  /* Neon Glow Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.8);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.9);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.95);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 1);
  --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.6);
  --shadow-glow-hover: 0 0 40px rgba(0, 255, 255, 0.9);
  --shadow-glow-pink: 0 0 30px rgba(255, 0, 255, 0.8);
  --shadow-glow-green: 0 0 30px rgba(0, 255, 65, 0.8);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Typography */
  --font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Z-Index */
  --z-modal: 1000;
  --z-dropdown: 900;
  --z-sticky: 800;
  --z-fixed: 700;
  --z-overlay: 600;
}

/* ==========================================
   GLOBAL STYLES
   ========================================== */

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

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

body {
  font-family: var(--font-family);
  background-color: #000000;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 255, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(255, 0, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(0, 255, 65, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 20% 60%, rgba(184, 0, 255, 0.08) 0%, transparent 40%);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      0deg,
      rgba(0, 255, 255, 0.03) 0px,
      transparent 1px,
      transparent 2px,
      rgba(0, 255, 255, 0.03) 3px
    );
  pointer-events: none;
  z-index: 1;
  animation: scanlines 8s linear infinite;
}

@keyframes scanlines {
  0% { transform: translateY(0); }
  100% { transform: translateY(10px); }
}

::selection {
  background-color: var(--color-primary);
  color: #000000;
  text-shadow: 0 0 10px var(--color-primary);
}

/* ==========================================
   SCROLL PROGRESS BAR
   ========================================== */

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: var(--gradient-neon);
  z-index: 9999 !important;
  transition: width var(--transition-fast);
  pointer-events: none;
  box-shadow: 
    0 0 10px rgba(0, 255, 255, 0.8),
    0 0 20px rgba(255, 0, 255, 0.6),
    0 0 30px rgba(0, 255, 65, 0.4);
  animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
  0%, 100% {
    box-shadow: 
      0 0 10px rgba(0, 255, 255, 0.8),
      0 0 20px rgba(255, 0, 255, 0.6),
      0 0 30px rgba(0, 255, 65, 0.4);
  }
  50% {
    box-shadow: 
      0 0 20px rgba(0, 255, 255, 1),
      0 0 40px rgba(255, 0, 255, 0.8),
      0 0 60px rgba(0, 255, 65, 0.6);
  }
}

/* ==========================================
   MAIN CONTENT OVERRIDE
   ========================================== */

#main,
#wrapper,
.wrapper,
section,
.section {
  background-color: transparent !important;
  background: transparent !important;
  color: var(--color-text-primary) !important;
}

#main {
  position: relative;
  z-index: 2;
  padding-top: 80px;
}

#wrapper {
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Override any remaining light backgrounds */
* {
  border-color: var(--color-border) !important;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary) !important;
}

p {
  color: var(--color-text-secondary) !important;
}

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

#nav,
.modern-nav {
  backdrop-filter: blur(10px) !important;
  background: rgba(0, 0, 0, 0.85) !important;
  background-color: rgba(0, 0, 0, 0.85) !important;
  border-bottom: 2px solid transparent !important;
  border-image: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), transparent) 1 !important;
  padding: 0.5em var(--spacing-lg) !important;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.9),
    0 0 40px rgba(0, 255, 255, 0.2),
    inset 0 1px 0 rgba(0, 255, 255, 0.1) !important;
  position: fixed !important;
  top: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 1000 !important;
  border-radius: 0 !important;
  margin: 0 !important;
}

#nav ul,
.modern-nav ul {
  margin: 0 !important;
  padding: 0 !important;
}

.modern-nav ul {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  list-style: none;
}

#nav ul li a,
.modern-nav .nav-link {
  position: relative;
  color: var(--color-text-secondary) !important;
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md) !important;
  transition: all var(--transition-base);
  font-weight: 500;
  text-shadow: 0 0 8px rgba(0, 255, 255, 0.6) !important;
  letter-spacing: 0.05em;
  background: transparent !important;
  box-shadow: none !important;
  height: auto !important;
  line-height: normal !important;
  border-radius: var(--radius-md) !important;
}

.modern-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

#nav ul li a:hover,
#nav ul li a.active,
.modern-nav .nav-link:hover,
.modern-nav .nav-link.active {
  color: var(--color-primary) !important;
  font-weight: 600;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8), 0 0 20px rgba(0, 255, 255, 0.6) !important;
  background: rgba(0, 255, 255, 0.1) !important;
}

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

.modern-nav .blog-link {
  background: var(--gradient-primary) !important;
  color: #000000 !important;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-weight: 700;
  transition: all 0.3s ease !important;
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.6),
    0 0 40px rgba(255, 0, 255, 0.4),
    inset 0 0 20px rgba(255, 255, 255, 0.2) !important;
  border: 2px solid rgba(0, 255, 255, 0.8);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
  letter-spacing: 0.1em;
}

.modern-nav .blog-link::after {
  display: none;
}

.modern-nav .blog-link:hover {
  transform: translateY(-3px) scale(1.05) !important;
  box-shadow: 
    0 0 40px rgba(0, 255, 255, 1),
    0 0 80px rgba(255, 0, 255, 0.8),
    0 0 120px rgba(0, 255, 65, 0.6),
    inset 0 0 30px rgba(255, 255, 255, 0.3) !important;
  color: #000000 !important;
  animation: neonFlicker 0.1s infinite;
}

@keyframes neonFlicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.95; }
}

/* Theme Toggle (Hidden - Dark Theme Only) */
.nav-controls {
  display: none;
}

.theme-toggle {
  display: none;
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-fixed);
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-toggle {
  position: absolute;
  right: var(--spacing-md);
  top: var(--spacing-md);
  background: rgba(0, 0, 0, 0.6);
  border: 2px solid var(--color-primary);
  width: 45px;
  height: 45px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  padding: 8px;
  z-index: var(--z-modal);
  border-radius: var(--radius-md);
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.5),
    inset 0 0 20px rgba(0, 255, 255, 0.05);
  transition: all var(--transition-base);
}

.mobile-nav-toggle:hover {
  border-color: var(--color-primary);
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.8),
    0 0 60px rgba(255, 0, 255, 0.4),
    inset 0 0 30px rgba(0, 255, 255, 0.1);
  transform: scale(1.05);
}

.mobile-nav-toggle span {
  width: 100%;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
}

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

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

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

.mobile-nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  padding: var(--spacing-3xl) var(--spacing-lg);
  transition: right var(--transition-base);
  overflow-y: auto;
  border-left: 2px solid var(--color-primary);
  box-shadow: 
    -10px 0 50px rgba(0, 255, 255, 0.3),
    inset 0 0 100px rgba(0, 255, 255, 0.05);
  backdrop-filter: blur(10px);
}

.mobile-nav-menu.active {
  right: 0;
}

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

.mobile-nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-lg);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
  text-shadow: 0 0 8px rgba(0, 255, 255, 0.6);
  border-radius: var(--radius-md);
  display: block;
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  padding-left: var(--spacing-lg);
  background: rgba(0, 255, 255, 0.1);
  border-color: var(--color-primary);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.8), 0 0 20px rgba(0, 255, 255, 0.6);
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.3),
    inset 0 0 20px rgba(0, 255, 255, 0.05);
}

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

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  position: relative;
  overflow: hidden;
  background: transparent;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 0, 255, 0.08) 0%, transparent 40%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.1); }
}

.hero-content {
  max-width: 800px;
  z-index: 10;
  text-align: center;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  animation: fadeInDown 0.8s ease-out;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

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

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: #00ff41;
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.8);
  margin-bottom: var(--spacing-lg);
  min-height: 40px;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.typing-text {
  color: #00ff41;
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.8);
}

.cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 49% {
    opacity: 1;
  }
  50%, 100% {
    opacity: 0;
  }
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
  animation: fadeInUp 0.8s ease-out 0.8s both;
}

.cta-button {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  display: inline-block;
}

.cta-button.primary {
  background: rgba(0, 255, 255, 0.1);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  text-shadow: none;
  font-weight: 700;
  letter-spacing: 0.1em;
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
}

.cta-button.primary:hover {
  transform: translateY(-3px);
  background: rgba(0, 255, 255, 0.2);
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.6),
    0 0 60px rgba(0, 255, 255, 0.4),
    inset 0 0 30px rgba(0, 255, 255, 0.1);
  color: var(--color-primary);
}

.cta-button.secondary {
  background: rgba(0, 0, 0, 0.6);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  text-shadow: 0 0 8px rgba(0, 255, 255, 0.8);
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.3),
    inset 0 0 20px rgba(0, 255, 255, 0.05);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.cta-button.secondary:hover {
  transform: translateY(-3px);
  background: rgba(0, 0, 0, 0.8);
  border-color: var(--color-primary);
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.6),
    0 0 60px rgba(0, 255, 255, 0.4),
    inset 0 0 30px rgba(0, 255, 255, 0.1);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out 1s both;
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: #00ff41;
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.8);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero-visual {
  position: absolute;
  right: -200px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  pointer-events: none;
}

.floating-card {
  position: relative;
  width: 100%;
  height: 100%;
  animation: float 6s ease-in-out infinite;
}

.card-glow {
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  filter: blur(100px);
  opacity: 0.3;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-30px);
  }
}

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

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

/* ==========================================
   SECTION HEADERS
   ========================================== */

.section-header {
  margin-bottom: var(--spacing-3xl);
}

.section-header.centered {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.section-header h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

.about-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.about-image .image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.about-image .image-wrapper:hover img {
  transform: scale(1.05);
}

.image-overlay {
  position: absolute;
  inset: 0;
  /* background: var(--gradient-primary); */
  opacity: 0;
  transition: opacity var(--transition-base);
  mix-blend-mode: overlay;
}

.about-image .image-wrapper:hover .image-overlay {
  opacity: 0.3;
}

.about-content {
  padding-top: var(--spacing-lg);
}

.about-intro {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

.about-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.highlight-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.highlight-item:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.highlight-icon {
  font-size: var(--font-size-3xl);
}

.highlight-content h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.highlight-content p {
  font-size: var(--font-size-sm);
  margin: 0;
}

.personal-interests {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl);
  background: var(--color-bg-glass);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
}

.personal-interests h3 {
  margin-bottom: var(--spacing-md);
}

/* ==========================================
   SKILLS SECTION
   ========================================== */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.skill-category {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-category::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.skill-category:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.skill-category:hover::before {
  opacity: 0.05;
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.category-icon {
  font-size: var(--font-size-3xl);
}

.category-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: scale(1.05);
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  align-items: stretch;
}

.project-card {
  background: rgba(0, 0, 0, 0.7);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.2),
    inset 0 0 60px rgba(0, 255, 255, 0.03);
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-neon);
  opacity: 0;
  transition: opacity var(--transition-base);
  filter: blur(40px);
}

.project-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: var(--gradient-neon);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.8);
  transition: left 0.5s ease;
}

.project-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--color-primary);
  box-shadow: 
    0 0 50px rgba(0, 255, 255, 0.6),
    0 0 100px rgba(255, 0, 255, 0.4),
    inset 0 0 80px rgba(0, 255, 255, 0.05);
}

.project-card:hover::before {
  opacity: 0.08;
}

.project-card:hover::after {
  left: 100%;
}

.project-card.featured {
  border-color: var(--color-primary);
  box-shadow: 
    0 0 40px rgba(0, 255, 255, 0.4),
    0 0 80px rgba(255, 0, 255, 0.3);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.project-icon {
  font-size: var(--font-size-3xl);
  filter: drop-shadow(var(--shadow-sm));
}

.project-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  background: var(--color-bg-tertiary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
}

.project-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
  text-align: left;
}

.project-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
  text-align: left;
}

.project-achievements {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  text-align: left;
}

.achievement {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: left;
}

.achievement-icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: auto;
}

.project-tags .tag {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-primary);
  transition: all var(--transition-fast);
}

.project-tags .tag:hover {
  background: var(--color-primary);
  color: white;
  transform: scale(1.05);
}

/* ==========================================
   TIMELINE (EXPERIENCE)
   ========================================== */

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--spacing-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: var(--spacing-3xl);
  animation: fadeInLeft 0.6s ease-out;
}

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

.timeline-marker {
  position: absolute;
  left: 20px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 3px solid var(--color-bg-primary);
  box-shadow: var(--shadow-glow);
}

.timeline-content {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  text-align: left;
  position: relative;
}

.timeline-item:hover .timeline-content {
  transform: translateX(10px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.timeline-date {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: 600;
  text-align: right;
  margin-bottom: 0;
  background: rgba(0, 255, 255, 0.1);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-primary);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

.timeline-location {
  position: absolute;
  top: calc(var(--spacing-xl) + 3.5em);
  right: var(--spacing-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  text-align: right;
  text-shadow: 0 0 5px rgba(0, 255, 255, 0.4);
  margin-top: var(--spacing-xs);
}

.timeline-location::before {
  content: '📍 ';
  margin-right: 4px;
}

.timeline-content h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
  text-align: left;
  padding-right: 200px;
}

.timeline-content h4 {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.timeline-content h4 a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.timeline-content h4 a:hover {
  color: var(--color-primary-light);
}

.timeline-achievements {
  list-style: none;
  padding-left: 0;
  text-align: left;
}

.timeline-achievements li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  text-align: left;
}

.timeline-achievements li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

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

#footer {
  background: var(--color-bg-secondary);
  border-top: 2px solid var(--color-border);
  padding: var(--spacing-3xl) var(--spacing-lg) !important;
  margin: 0 0 0 0 !important;
  text-align: center !important;
  display: flex !important;
  flex-direction: column !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  width: 100% !important;
}

#footer > * {
  width: 100% !important;
  margin: 0 !important;
  position: static !important;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto var(--spacing-2xl) auto !important;
  padding: 0 !important;
  text-align: center !important;
  width: 100% !important;
  position: static !important;
}

.contact-section {
  margin: 0 0 0 0 !important;
  padding: 0 !important;
  text-align: center !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.contact-grid {
  display: flex !important;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin: 0 auto var(--spacing-lg) auto !important;
  padding: 0 !important;
  justify-content: center !important;
  align-items: stretch;
  max-width: 100%;
  width: 100%;
}

.contact-card {
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center !important;
  transition: all var(--transition-base);
  flex: 0 0 calc(25% - var(--spacing-lg));
  min-width: 200px;
  max-width: 250px;
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.15),
    inset 0 0 20px rgba(0, 255, 255, 0.03);
}

.contact-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.4),
    0 0 60px rgba(255, 0, 255, 0.2),
    inset 0 0 30px rgba(0, 255, 255, 0.05);
}

.contact-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5));
}

.contact-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.contact-card a,
.contact-card p {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  word-break: break-word;
}

.contact-card a:hover {
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.6);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin: var(--spacing-lg) 0 !important;
  padding: 0 !important;
}

.social-link {
  width: 60px;
  height: 60px;
  background: rgba(0, 0, 0, 0.6);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: 
    0 0 15px rgba(0, 255, 255, 0.2),
    inset 0 0 15px rgba(0, 255, 255, 0.05);
}

.social-link:hover {
  background: var(--gradient-primary);
  border-color: var(--color-primary);
  color: #000000;
  transform: translateY(-5px) scale(1.1);
  box-shadow: 
    0 0 30px rgba(0, 255, 255, 0.8),
    0 0 60px rgba(255, 0, 255, 0.4);
}

.interests-causes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin: 0 0 var(--spacing-2xl) 0;
  text-align: center !important;
  background: transparent !important;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.section-header {
  text-align: center !important;
  width: 100%;
  margin-bottom: var(--spacing-xl);
}

.interests,
.causes {
  text-align: center !important;
  background: transparent !important;
}

.interests h3,
.causes h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.6);
  text-align: center !important;
}

.interest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  max-width: 600px;
  margin: 0 auto;
}

.interest-tag {
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid var(--color-border);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.interest-tag:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #000000;
  transform: scale(1.05);
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.8),
    0 0 40px rgba(255, 0, 255, 0.4);
}

.causes-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.cause-item {
  padding: var(--spacing-md);
  background: rgba(0, 0, 0, 0.5);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
  text-align: center;
  width: 100%;
  max-width: 400px;
}

.cause-item:hover {
  transform: translateX(10px);
  background: rgba(0, 255, 255, 0.1);
  border-left-color: var(--color-secondary);
  box-shadow: 
    0 0 20px rgba(0, 255, 255, 0.4),
    0 0 40px rgba(255, 0, 255, 0.2);
}

.footer-bottom {
  text-align: center; 
  padding: 0;
  margin-top: var(--spacing-2xl);
  border-top: 2px solid var(--color-border);
  /* box-shadow: 0 -2px 20px rgba(0, 255, 255, 0.2); */
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  clear: both;
  display: block;
}

.copyright {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
  margin: 0;
  padding: 0;
}

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

@media screen and (max-width: 1024px) {
  .about-container {
    grid-template-columns: 1fr;
  }
  
  .project-card.featured {
    grid-column: span 1;
  }
  
  .hero-visual {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .modern-nav {
    display: none;
  }
  
  .mobile-nav {
    display: block;
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .cta-button {
    width: 100%;
    text-align: center;
  }
  
  .section-header h2 {
    font-size: var(--font-size-3xl);
  }
  
  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline::before {
    left: 10px;
  }
  
  .timeline-item {
    padding-left: 50px;
  }
  
  .timeline-marker {
    left: 1px;
  }
  
  .timeline-date {
    position: static;
    display: block;
    margin-bottom: var(--spacing-sm);
    text-align: left;
    width: fit-content;
  }
  
  .timeline-location {
    position: static;
    display: block;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xs);
    text-align: left;
  }
  
  .timeline-content h3 {
    padding-right: 0;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

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

  .social-link {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-xl);
  }
  
  .interests-causes {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .interest-tags {
    gap: var(--spacing-xs);
  }
}

@media screen and (max-width: 480px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .section-header {
    margin-bottom: var(--spacing-xl);
  }
}

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

.hidden {
  display: none !important;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}