/* === Departure Mono Font === */
@font-face {
  font-family: 'Departure Mono';
  src: url('DepartureMono-Regular.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* === Custom Properties - Retro Terminal Theme === */
:root {
  /* Color Palette - CRT / Terminal inspired */
  --color-bg: #0a0a0f;
  --color-bg-alt: #12121a;
  --color-surface: #1a1a24;
  --color-text: #f0eeeb;
  --color-text-muted: #b0b0b0;
  --color-accent: #00ff9f;
  --color-accent-dim: #00cc7f;
  --color-accent-glow: rgba(0, 255, 159, 0.4);
  --color-secondary: #ff6b9d;
  --color-tertiary: #ffd93d;
  --color-border: #2a2a3a;
  --color-border-bright: #4a4a5a;
  
  /* Typography */
  --font-mono: 'Departure Mono', 'Monaco', 'Consolas', monospace;
  
  /* Spacing - Using 8px grid for pixel-perfect feel */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  
  /* Pixel-perfect shadows (no blur) */
  --shadow-pixel: 4px 4px 0 var(--color-border);
  --shadow-pixel-accent: 4px 4px 0 var(--color-accent-dim);
  --shadow-glow: 0 0 20px var(--color-accent-glow);
  
  /* Layout */
  --max-width: 1200px;
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  
  /* Subtle scanline effect */
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.1) 2px,
      rgba(0, 0, 0, 0.1) 4px
    );
  background-attachment: fixed;
}

/* CRT screen vignette effect */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
  z-index: 9999;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: all 0.1s steps(3);
}

a:hover {
  color: var(--color-secondary);
  text-shadow: 0 0 8px var(--color-secondary);
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: normal;
  line-height: 1.4;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Selection styling */
::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.nav-brand {
  font-size: 20px;
  color: var(--color-accent);
  text-shadow: var(--shadow-glow);
}

.nav-brand::before {
  content: '> ';
  color: var(--color-secondary);
}

.nav-brand:hover {
  color: var(--color-accent);
  animation: flicker 0.15s infinite;
}

.nav-links {
  display: flex;
  gap: var(--space-3);
}

.nav-links a {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nav-links a::before {
  content: '[';
  color: var(--color-border-bright);
}

.nav-links a::after {
  content: ']';
  color: var(--color-border-bright);
}

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

.nav-links a:hover::before,
.nav-links a:hover::after {
  color: var(--color-accent);
}

/* === Hero Section === */
.hero {
  padding: calc(var(--space-7) + 60px) var(--space-3) var(--space-7);
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  align-items: center;
}

.hero-image {
  width: 200px;
  height: 200px;
  border: 4px solid var(--color-accent);
  box-shadow: var(--shadow-pixel-accent), var(--shadow-glow);
  overflow: hidden;
  background: var(--color-surface);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-text h1 {
  font-size: clamp(24px, 5vw, 40px);
  margin-bottom: var(--space-1);
  color: var(--color-text);
  text-shadow: 0 0 30px var(--color-accent-glow);
}

.hero-text h1::before {
  content: '# ';
  color: var(--color-accent);
}

.hero-title {
  font-size: 14px;
  color: var(--color-secondary);
  margin-bottom: var(--space-3);
}

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

.hero-description {
  max-width: 600px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  padding: var(--space-2);
  border-left: 4px solid var(--color-border);
  background: var(--color-surface);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.link-btn {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-size: 12px;
  color: var(--color-text);
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-pixel);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.1s steps(2);
}

.link-btn:hover {
  color: var(--color-bg);
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: none;
  transform: translate(4px, 4px);
}

/* === Section Styles === */
.section {
  padding: var(--space-7) var(--space-3);
  border-bottom: 2px solid var(--color-border);
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-title {
  font-size: clamp(20px, 4vw, 28px);
  text-align: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent);
  position: relative;
}

.section-title::before {
  content: '>>> ';
  color: var(--color-secondary);
}

.section-title::after {
  content: ' <<<';
  color: var(--color-secondary);
}

/* === ASCII Decorations === */
.section-title + .ascii-line {
  text-align: center;
  color: var(--color-border-bright);
  margin-bottom: var(--space-4);
  font-size: 12px;
}

/* === Skills Grid === */
.skills-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-3);
}

.skill-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-pixel);
  transition: all 0.1s steps(2);
  overflow: hidden;
}

.skill-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-pixel-accent);
}

.skill-icon {
  width: 100%;
  height: 120px;
  padding: var(--space-2);
  border-bottom: 2px solid var(--color-border);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.skill-icon img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(100%) brightness(1.2);
  opacity: 0.8;
}

.skill-card:hover .skill-icon img {
  filter: none;
  opacity: 1;
}

.skill-card h3 {
  font-size: 16px;
  margin: var(--space-2) var(--space-2) var(--space-1);
  color: var(--color-tertiary);
}

.skill-card h3::before {
  content: '> ';
  color: var(--color-accent);
}

.skill-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  padding: 0 var(--space-2) var(--space-2);
}

/* === Domains List === */
.domains-list {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.domain-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-pixel);
  transition: all 0.1s steps(2);
}

.domain-item:hover {
  border-color: var(--color-secondary);
}

.domain-image {
  width: 120px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  padding: var(--space-1);
}

.domain-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(100%) brightness(1.2);
  opacity: 0.7;
}

.domain-item:hover .domain-image img {
  filter: none;
  opacity: 1;
}

.domain-content h3 {
  font-size: 16px;
  margin-bottom: var(--space-1);
  color: var(--color-secondary);
}

.domain-content p {
  color: var(--color-text-muted);
  font-size: 13px;
  margin-bottom: var(--space-1);
}

.domain-content ul {
  margin-top: var(--space-1);
}

.domain-content li {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.domain-content li::before {
  content: '├─ ';
  color: var(--color-border-bright);
}

.domain-content li:last-child::before {
  content: '└─ ';
}

/* === Projects Grid === */
.projects-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

.project-card {
  display: block;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-pixel);
  overflow: hidden;
  transition: all 0.1s steps(2);
}

.project-card:hover {
  border-color: var(--color-tertiary);
  box-shadow: 4px 4px 0 var(--color-tertiary);
  transform: translate(-2px, -2px);
}

.project-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
  filter: grayscale(50%);
}

.project-card:hover img {
  filter: none;
}

.project-info {
  padding: var(--space-2);
}

.project-info h3 {
  font-size: 14px;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}

.project-card:hover .project-info h3 {
  color: var(--color-tertiary);
}

.project-info p {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* === Publications List === */
.publications-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.publication {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  transition: all 0.1s steps(2);
}

.publication:hover {
  background: var(--color-bg-alt);
  border-left-color: var(--color-secondary);
}

.publication a {
  display: block;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: var(--space-1);
}

.publication a::before {
  content: '📄 ';
}

.publication p {
  font-size: 12px;
  color: var(--color-text-muted);
}

.publication strong {
  color: var(--color-tertiary);
}

.publication em {
  color: var(--color-secondary);
  font-style: normal;
}

/* === Timeline === */
.timeline-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-pixel);
  overflow-x: auto;
}

.timeline-container img {
  min-width: 800px;
  width: 100%;
  filter: invert(1) hue-rotate(180deg);
  opacity: 0.9;
}

/* === Contact === */
.contact-info {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-pixel);
}

.contact-label {
  font-size: 14px;
  color: var(--color-accent);
  text-transform: uppercase;
}

.contact-label::before {
  content: '> ';
}

.contact-value {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* === Footer === */
.footer {
  padding: var(--space-4);
  text-align: center;
  background: var(--color-bg);
  border-top: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 12px;
}

.footer::before {
  content: '/* ';
  color: var(--color-border-bright);
}

.footer::after {
  content: ' */';
  color: var(--color-border-bright);
}

/* === Responsive Design === */
@media (max-width: 768px) {
  .nav {
    padding: var(--space-2);
  }
  
  .nav-links {
    gap: var(--space-2);
  }
  
  .nav-links a {
    font-size: 10px;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-4);
  }
  
  .hero-image {
    margin: 0 auto;
    width: 160px;
    height: 160px;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-links {
    justify-content: center;
  }
  
  .domain-item {
    grid-template-columns: 1fr;
  }
  
  .domain-image {
    width: 100%;
    height: 80px;
  }
  
  .section {
    padding: var(--space-5) var(--space-2);
  }
}

@media (max-width: 480px) {
  .nav-links {
    display: none;
  }
  
  .hero-text h1 {
    font-size: 20px;
  }
  
  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* === Retro Animations === */
@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

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

@keyframes scanline {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

/* Blinking cursor effect for brand */
.nav-brand::after {
  content: '_';
  animation: blink 1s steps(1) infinite;
}

/* Step-based hover transitions */
.skill-card,
.domain-item,
.project-card,
.publication {
  transition: all 0.15s steps(4);
}

/* Pixel grid overlay on hover for images (optional effect) */
.hero-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 255, 159, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 159, 0.03) 1px, transparent 1px);
  background-size: 4px 4px;
  pointer-events: none;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* Corner decoration */
::-webkit-scrollbar-corner {
  background: var(--color-bg);
}