:root {
  /* Color Palette */
  --bg-primary: #0a0a1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);

  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b8b8d1;
  --text-muted: #8b8b9e;

  /* Accent Colors */
  --accent-cyan: #00f2fe;
  --accent-purple: #764ba2;
  --accent-pink: #f5576c;

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

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

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

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
}

/* 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(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Canvas Container */
#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: var(--bg-primary);
  overflow: hidden;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 5%;
  background: rgba(10, 10, 26, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

nav.scrolled {
  padding: 1rem 5%;
  background: rgba(10, 10, 26, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: var(--transition-normal);
}

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

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

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0 5%;
  overflow: hidden;
}

.hero-content {
  max-width: 1400px;
  width: 100%;
  text-align: center;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-weight: 300;
}

.typing-text {
  display: inline-block;
  border-right: 3px solid var(--accent-cyan);
  animation: blink 0.7s step-end infinite;
}

@keyframes blink {
  50% {
    border-color: transparent;
  }
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-normal);
  cursor: pointer;
  border: none;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

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

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 2px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--glass-border);
  transform: translateY(-3px);
  border-color: var(--accent-cyan);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator::before {
  content: '↓';
  font-size: 2rem;
  color: var(--text-secondary);
}

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* Section Styles */
section {
  padding: var(--spacing-xl) 5%;
  position: relative;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  display: block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

/* Glass Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

/* About Section */
.about-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: center;
}

.profile-image-container {
  position: relative;
}

.profile-image {
  width: 100%;
  max-width: 350px;
  aspect-ratio: 1;
  border-radius: 20px;
  object-fit: cover;
  border: 3px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.profile-image-container::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  background: var(--gradient-primary);
  border-radius: 20px;
  z-index: 0;
  opacity: 0.3;
}

.about-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-secondary);
}

.contact-item i {
  color: var(--accent-cyan);
  font-size: 1.2rem;
}

/* Experience Timeline */
.timeline {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--gradient-primary);
}

.timeline-item {
  margin-bottom: 3rem;
  position: relative;
  width: 50%;
  padding: 0 2rem;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 0.5rem;
  width: 16px;
  height: 16px;
  background: var(--accent-cyan);
  border: 3px solid var(--bg-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.3);
  z-index: 10;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
}

.timeline-content {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 24px 28px;
  transition: var(--transition-normal);
}

.timeline-content:hover {
  transform: scale(1.03);
  border-color: var(--accent-cyan);
}

.timeline-date {
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.timeline-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.timeline-company {
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1rem;
}

.timeline-description {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
  list-style: none;
  padding: 0;
}

.timeline-description li {
  margin-bottom: 0.8rem;
  position: relative;
  padding-left: 1.2rem;
}

.timeline-description li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}


/* Skills Section */
.skills-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition-normal);
}

.skill-category:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
}

.skill-category h3 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-name {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.skill-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 10px;
  width: 0;
  transition: width 1.5s ease;
}

.skill-item.animate .skill-progress {
  width: var(--progress);
}

/* Projects Section */
.projects-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.project-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.5rem;
  border: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-weight: 500;
  transition: var(--transition-fast);
}

.project-card:hover .tag {
  background: rgba(0, 242, 254, 0.1);
  border-color: var(--accent-cyan);
}

.btn-sm {
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
}

/* Education Section */
.education-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.education-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition-normal);
}

.education-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-purple);
}

.education-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.education-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.education-date {
  color: var(--accent-purple);
  font-weight: 600;
}

.education-institution {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

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

/* Certifications Section */
.certifications-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
  transition: var(--transition-slow);
}

.cert-card:hover::before {
  left: 100%;
}

.cert-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
}

.cert-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cert-title {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Contact Section */
.contact-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.contact-container p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.social-link {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.5rem;
  transition: var(--transition-normal);
  text-decoration: none;
}

.social-link:hover {
  transform: translateY(-5px) scale(1.1);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 5%;
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 968px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background: rgba(10, 10, 26, 0.98);
    width: 100%;
    padding: 2rem;
    transition: var(--transition-normal);
    border-bottom: 1px solid var(--glass-border);
  }

  .nav-links.active {
    left: 0;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .about-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-image {
    margin: 0 auto;
  }

  .timeline::before {
    left: 0;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left;
    padding-left: 3rem;
    padding-right: 0;
  }

  .timeline-dot {
    left: -10px !important;
  }

  .contact-info {
    align-items: center;
  }
}

@media (max-width: 640px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  .skills-grid,
  .certifications-grid {
    grid-template-columns: 1fr;
  }

  .social-links {
    gap: 1rem;
  }

  .social-link {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
}

/* Particle Canvas */
#particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}