#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: var(--transition);
}

[data-theme="dark"] .header {
  background: rgba(17, 24, 39, 0.95);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(15px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(17, 24, 39, 0.98);
  backdrop-filter: blur(15px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-text {
  color: var(--text-primary);
}

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

.nav-menu {
  display: flex;
  gap: var(--space-xl);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

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

.nav-extras {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: scale(1.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: var(--z-modal);
  border-radius: var(--radius-md);
  transition: background-color var(--transition);
}

.hamburger:hover {
  background-color: rgba(var(--primary-rgb), 0.1);
}

.hamburger.active {
  background-color: rgba(var(--primary-rgb), 0.15);
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition-fast);
  transform-origin: center;
}

.hamburger.active span {
  background: var(--primary);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: var(--gradient-hero);
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.hero-greeting {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.hero-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  margin-bottom: var(--space-xl);
  min-height: 2.5rem;
  color: var(--primary);
  font-family: var(--font-mono);
}

.cursor {
  animation: blink 1s infinite;
  color: var(--accent);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

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

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

.hero-photo {
  width: 350px;
  height: 350px;
  border-radius: 2rem;
  object-fit: cover;
  border: 4px solid var(--white);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.1),
    0 10px 25px rgba(102, 126, 234, 0.08),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  animation: float 8s ease-in-out infinite;
  position: relative;
  z-index: 2;
  filter: contrast(1.02) brightness(1.01);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.hero-photo::before {
  content: '';
  position: absolute;
  top: -12px;
  left: -12px;
  right: -12px;
  bottom: -12px;
  background: linear-gradient(135deg, 
    rgba(102, 126, 234, 0.15) 0%, 
    rgba(118, 75, 162, 0.12) 50%, 
    rgba(240, 147, 251, 0.08) 100%);
  border-radius: 2.5rem;
  z-index: -1;
  animation: pulse 4s ease-in-out infinite;
  filter: blur(2px);
  opacity: 0.7;
}

.hero-photo:hover {
  transform: translateY(-8px) scale(1.03);
  border-radius: 2.2rem;
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.15),
    0 15px 35px rgba(102, 126, 234, 0.12),
    0 0 0 1px rgba(255, 255, 255, 0.15);
  filter: contrast(1.05) brightness(1.03);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-secondary);
  animation: bounce 2s infinite;
}

.scroll-indicator span {
  font-size: 0.875rem;
  font-weight: 500;
}

.about {
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.about-text {
  font-size: 1rem;
}

.highlight-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--space-lg);
  line-height: 1.4;
}

.about-text p {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.about-skills h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

.skills-grid {
  display: grid;
  gap: var(--space-lg);
}

.services {
  background: var(--bg-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.portfolio {
  background: var(--bg-secondary);
}

.experience {
  background: var(--bg-primary);
}

.experience-timeline {
  position: relative;
  padding-left: var(--space-2xl);
}

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

.experience-item {
  position: relative;
  margin-bottom: var(--space-2xl);
  background: var(--card-bg);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.experience-item::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 20px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
}

.experience-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.experience-company {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
}

.experience-period {
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.experience-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.experience-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.experience-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tech-tag {
  background: var(--bg-secondary);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.contact {
  background: var(--bg-secondary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.contact-info p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.contact-details {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section a {
  color: var(--text-secondary);
  line-height: 1.6;
  transition: var(--transition-fast);
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
}