:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-card: #16161e;
  --bg-card-hover: #1e1e28;
  
  --terminal-green: #4ade80;
  --terminal-cyan: #22d3ee;
  --terminal-yellow: #fbbf24;
  --terminal-purple: #a78bfa;
  --terminal-pink: #f472b6;
  --terminal-orange: #fb923c;
  --terminal-red: #f87171;
  
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  
  --border-color: #27272a;
  --border-glow: rgba(74, 222, 128, 0.3);
  
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

::selection {
  background: var(--terminal-green);
  color: var(--bg-primary);
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--terminal-green);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--terminal-cyan);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

a {
  color: var(--terminal-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--terminal-green);
}

.terminal-text {
  font-family: var(--font-mono);
}

.highlight-green { color: var(--terminal-green); }
.highlight-cyan { color: var(--terminal-cyan); }
.highlight-yellow { color: var(--terminal-yellow); }
.highlight-purple { color: var(--terminal-purple); }
.highlight-pink { color: var(--terminal-pink); }

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--terminal-green);
}

.nav-logo::before {
  content: '> ';
  color: var(--text-muted);
}

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

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-links a::before {
  content: './';
  color: var(--text-muted);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.nav-links a:hover::before {
  opacity: 1;
}

.nav-links a:hover {
  color: var(--terminal-green);
}

.lang-switch {
  display: flex;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
  border-color: var(--terminal-green);
  color: var(--terminal-green);
}

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

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(74, 222, 128, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(167, 139, 250, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(74, 222, 128, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 222, 128, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-terminal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  text-align: left;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 
    0 0 0 1px rgba(74, 222, 128, 0.1),
    0 20px 50px -20px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.terminal-prompt {
  color: var(--terminal-green);
}

.terminal-command {
  color: var(--terminal-cyan);
}

.terminal-output {
  color: var(--text-secondary);
  padding-left: 1rem;
}

.typing-cursor {
  display: inline-block;
  width: 10px;
  height: 1.2em;
  background: var(--terminal-green);
  animation: blink 1s infinite;
  vertical-align: middle;
  margin-left: 2px;
}

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

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--terminal-green) 50%, var(--terminal-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--terminal-green);
  color: var(--bg-primary);
  border: none;
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--terminal-cyan);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px rgba(74, 222, 128, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--terminal-green);
  border: 1px solid var(--terminal-green);
}

.btn-secondary:hover {
  background: rgba(74, 222, 128, 0.1);
  transform: translateY(-2px);
}

section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--terminal-green);
  margin-bottom: 0.5rem;
  display: block;
}

.section-tag::before {
  content: '// ';
  color: var(--text-muted);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

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

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

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--terminal-green);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.about-image {
  position: relative;
}

.code-window {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.code-header span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.code-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.code-line {
  display: flex;
}

.line-number {
  color: var(--text-muted);
  width: 2rem;
  text-align: right;
  margin-right: 1rem;
  user-select: none;
}

.code-keyword { color: var(--terminal-purple); }
.code-string { color: var(--terminal-green); }
.code-property { color: var(--terminal-cyan); }
.code-value { color: var(--terminal-yellow); }
.code-comment { color: var(--text-muted); font-style: italic; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all var(--transition-normal);
}

.skill-category:hover {
  border-color: var(--terminal-green);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(74, 222, 128, 0.2);
}

.skill-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--terminal-green), var(--terminal-cyan));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.skill-category h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.375rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  border-color: var(--terminal-green);
  color: var(--terminal-green);
}

#experience {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--terminal-green), var(--terminal-cyan), var(--terminal-purple));
}

.timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 3rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -6px;
  top: 0;
  width: 14px;
  height: 14px;
  background: var(--terminal-green);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  border-color: var(--terminal-green);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.timeline-company {
  color: var(--terminal-cyan);
  font-weight: 500;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--terminal-green);
  background: rgba(74, 222, 128, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}

.timeline-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-tech span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-tertiary);
  border-radius: 4px;
  color: var(--text-muted);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.project-card:hover {
  border-color: var(--terminal-green);
  transform: translateY(-8px);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.5);
}

.project-image {
  height: 200px;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-card), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-content {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tech span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-tertiary);
  border-radius: 4px;
  color: var(--terminal-cyan);
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.project-links a:hover {
  color: var(--terminal-green);
}

.projects-more {
  text-align: center;
  margin-top: 2rem;
}

.projects-toggle-btn {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--terminal-green);
  border: 1px solid var(--terminal-green);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.projects-toggle-btn:hover {
  background: rgba(74, 222, 128, 0.1);
  transform: translateY(-2px);
}

.projects-toggle-btn .arrow {
  transition: transform var(--transition-normal);
}

.projects-toggle-btn.active .arrow {
  transform: rotate(180deg);
}

.projects-hidden {
  display: none;
  margin-top: 2rem;
}

.projects-hidden.visible {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.projects-divider {
  text-align: center;
  margin: 3rem 0 1rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.projects-divider span {
  background: var(--bg-primary);
  padding: 0 1rem;
  position: relative;
}

.projects-divider::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: var(--border-color);
  z-index: -1;
}

#certifications {
  background: var(--bg-secondary);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-normal);
  position: relative;
}

.cert-card:hover {
  border-color: var(--terminal-green);
  transform: translateX(8px);
}

.cert-card.featured {
  border-color: var(--terminal-yellow);
  background: linear-gradient(135deg, var(--bg-card), rgba(251, 191, 36, 0.05));
}

.cert-card.featured:hover {
  border-color: var(--terminal-yellow);
  box-shadow: 0 0 30px -10px rgba(251, 191, 36, 0.3);
}

.cert-pin {
  position: absolute;
  top: -8px;
  right: 12px;
  font-size: 1.5rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
  transform: rotate(15deg);
  z-index: 1;
}

.cert-level {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--terminal-yellow);
  margin-top: 0.25rem;
}

.cert-icon {
  width: 60px;
  height: 60px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.cert-icon.aws {
  background: linear-gradient(135deg, #ff9900, #ffbb00);
}

.cert-icon.azure {
  background: linear-gradient(135deg, #0078d4, #00bcf2);
}

.cert-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.cert-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  background: var(--terminal-yellow);
  color: var(--bg-primary);
  border-radius: 4px;
  margin-top: 0.5rem;
  display: inline-block;
}

#contact {
  background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
}

.contact-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contact-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.75rem 1.25rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.contact-link:hover {
  border-color: var(--terminal-green);
  color: var(--terminal-green);
  transform: translateY(-2px);
}

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

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

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

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-terminal {
    padding: 1.5rem;
  }
  
  .terminal-line {
    font-size: 0.8rem;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .timeline::before {
    left: 6px;
  }
  
  .timeline-item {
    padding-left: 2.5rem;
  }
  
  .timeline-dot {
    left: 0;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-links {
    flex-direction: column;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  section {
    padding: 4rem 0;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .skill-category {
    padding: 1.5rem;
  }
}