:root {
  /* Colors Style*/
  --bg-color: #0a0a0a;
  --surface-color: #111111;
  --surface-border: #222222;
  --surface-border-hover: #333333;
  --text-primary: #ededed;
  --text-secondary: #888888;
  --bg-transparent-overlay: rgba(10, 10, 10, 0.8);
  --bg-highlight: rgba(255, 255, 255, 0.03);
  --bg-badge: rgba(255, 255, 255, 0.05);

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2.5rem;
  --spacing-2xl: 4rem;
  --spacing-section: 6rem;

  /* Radii & Effects */
  --border-radius-sm: 4px;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
  --transition-fast: 0.2s ease;

  /* Z-Index */
  --z-index-nav: 100;

  /* Terminal Colors */
  --terminal-red: #ff5f56;
  --terminal-yellow: #ffbd2e;
  --terminal-green: #27c93f;
  --terminal-link: #58a6ff;
  --terminal-code: #e6e6e6;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* Typography Base */
h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.2;
}

.section-title {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Base Link Margin utils */
.mt-6 {
  margin-top: var(--spacing-lg);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: var(--spacing-lg) 2rem;
  background: var(--bg-transparent-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
  z-index: var(--z-index-nav);
}

.nav-content {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-weight: 500;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

/* Content Container */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 80px;
  gap: var(--spacing-2xl);
}

.hero-content {
  flex: 1;
}

.headline {
  font-size: 4rem;
  letter-spacing: -0.04em;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

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

.sub-headline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: var(--border-radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-color);
  border: 1px solid var(--text-primary);
}

.btn-primary:hover {
  background: transparent;
  color: var(--text-primary);
}

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

.btn-secondary:hover {
  border-color: var(--text-primary);
}

.hero-image-container {
  flex: 0 0 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.headshot {
  width: 100%;
  height: auto;
  aspect-ratio: 4/5;
  object-fit: contain;
  border-radius: var(--border-radius-lg);
  background-color: transparent;
  border: 1px solid var(--bg-badge);
}

/* Tech Arsenal */
.tech-arsenal {
  padding: var(--spacing-section) 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing-md);
}

.tech-card {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast),
    border-color var(--transition-fast);
  aspect-ratio: 2/1;
}

.tech-card:hover {
  transform: translateY(-2px);
  border-color: var(--text-secondary);
}

.tech-card.highlight {
  background: var(--bg-highlight);
  border-color: var(--surface-border-hover);
}

.tech-label {
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}

/* Experience Timeline */
.experience {
  padding: var(--spacing-section) 0;
}

.timeline {
  border-left: 1px solid var(--surface-border);
  padding-left: var(--spacing-xl);
  margin-left: var(--spacing-md);
  position: relative;
}

.timeline-entry {
  position: relative;
  margin-bottom: var(--spacing-2xl);
}

.timeline-entry::before {
  content: "";
  position: absolute;
  left: calc(var(--spacing-xl) * -1 - 0.35rem);
  top: 0.25rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 4px solid var(--bg-color);
}

.timeline-meta {
  margin-bottom: var(--spacing-lg);
}

.company {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.duration {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  display: block;
}

.role {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

.project {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
}

.project-title {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
}

.metrics {
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 0.95rem;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--bg-badge);
  border: 1px solid var(--surface-border);
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
}

.project-details {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Experiments */
.experiments {
  padding: var(--spacing-section) 0;
}

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

.experiment-card {
  border: 1px solid var(--surface-border);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  transition: background var(--transition-fast);
}

.experiment-card:hover {
  background: var(--surface-color);
}

.experiment-header h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.experiment-header h3 a {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--surface-border);
}

.experiment-header h3 a:hover {
  text-decoration-color: var(--text-primary);
}

.experiment-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
}

/* Footer / Terminal */
.terminal-footer {
  padding: var(--spacing-2xl) 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.footer-layout {
  background: #000000;
  border: 1px solid var(--surface-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.terminal-header {
  background: var(--surface-color);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--surface-border);
}

.traffic-lights {
  display: flex;
  gap: 6px;
  margin-right: var(--spacing-md);
}

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

.red {
  background: var(--terminal-red);
}

.yellow {
  background: var(--terminal-yellow);
}

.green {
  background: var(--terminal-green);
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex: 1;
  text-align: center;
  margin-right: 3rem;
}

.terminal-body {
  padding: var(--spacing-lg);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
}

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

.terminal-body pre {
  margin: var(--spacing-md) 0;
  color: var(--terminal-code);
  white-space: pre-wrap;
}

.terminal-body a {
  color: var(--terminal-link);
  text-decoration: none;
}

.terminal-body a:hover {
  text-decoration: underline;
}

.cursor {
  animation: blink 1s step-end infinite;
}

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

  50% {
    opacity: 0;
  }
}

/* Animations & Interactivity */
.fade-in-section {
  opacity: 0;
  transform: translateY(15px);
  visibility: hidden;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: none;
  visibility: visible;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    text-align: left;
    padding-top: 120px;
    gap: 3rem;
  }

  .hero-image-container {
    flex: 0 0 auto;
    width: 100%;
    order: -1;
  }

  .headshot {
    aspect-ratio: 1/1;
    max-width: 300px;
  }

  .headline {
    font-size: 2.5rem;
  }

  .timeline {
    margin-left: 0.5rem;
    padding-left: 1.5rem;
  }

  .timeline-entry::before {
    left: -1.85rem;
  }

  .nav-links {
    display: none;
  }
}