/* ============================================
   PORTFOLIO DESIGN SYSTEM — Terminal Meets Mech
   Apurvakumar Jani | Robotics Engineer
   ============================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Terminal palette */
  --terminal-green: #00ff41;
  --terminal-green-dim: #00cc33;
  --terminal-green-glow: rgba(0, 255, 65, 0.12);
  --terminal-amber: #ffb000;
  --terminal-amber-glow: rgba(255, 176, 0, 0.12);
  --accent-cyan: #22d3ee;
  --accent-cyan-glow: rgba(34, 211, 238, 0.12);
  --accent-red: #ef4444;

  /* Backgrounds */
  --bg-deep: #0a0e17;
  --bg-surface: #111827;
  --bg-surface-hover: #1a2332;
  --bg-elevated: #1e293b;
  --bg-code: #0d1117;

  /* Text */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;

  /* Borders */
  --border-color: #1e293b;
  --border-glow: rgba(0, 255, 65, 0.2);

  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows */
  --shadow-glow: 0 0 20px rgba(0, 255, 65, 0.1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

html {
  background-color: var(--bg-deep);
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--terminal-green-dim) var(--bg-deep);
}

body {
  font-family: var(--font-sans);
  background-color: transparent;
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: var(--terminal-green-dim);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--terminal-green); }

/* Selection */
::selection {
  background: rgba(0, 255, 65, 0.25);
  color: var(--terminal-green);
}

a {
  color: var(--terminal-green);
  text-decoration: none;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}
a:hover {
  color: #33ff66;
  text-shadow: 0 0 8px var(--terminal-green-glow);
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-4xl) 0;
}

/* ============================================
   BACKGROUND EFFECTS (Grid + Ambient Glows)
   ============================================ */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  /* Technical dot grid and line grid combination */
  background-image:
    radial-gradient(rgba(0, 255, 65, 0.09) 1px, transparent 1px),
    linear-gradient(rgba(0, 255, 65, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 65, 0.02) 1px, transparent 1px);
  background-size: 20px 20px, 80px 80px, 80px 80px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

#terminal-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 1.0;
}

/* Ambient glow mesh background elements */
body::after {
  content: '';
  position: fixed;
  top: -20%; left: -20%;
  width: 140%; height: 140%;
  background: 
    radial-gradient(circle at 30% 30%, rgba(0, 255, 65, 0.14) 0%, transparent 55%),
    radial-gradient(circle at 75% 75%, rgba(34, 211, 238, 0.12) 0%, transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(255, 176, 0, 0.09) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
  animation: float-glows 25s ease-in-out infinite alternate;
}

@keyframes float-glows {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(3%, 4%) scale(1.05);
  }
  100% {
    transform: translate(-2%, 2%) scale(0.95);
  }
}

body > *:not(.boot-overlay):not(.navbar) {
  position: relative;
  z-index: 1;
}

/* ============================================
   BOOT SEQUENCE OVERLAY
   ============================================ */
.boot-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--bg-deep);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.boot-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.boot-terminal {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--terminal-green);
  max-width: 650px;
  width: 90%;
  line-height: 2;
}

.boot-line {
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  white-space: nowrap;
  overflow: hidden;
}
.boot-line.visible {
  opacity: 1;
  transform: translateY(0);
}
.boot-line .ok-tag {
  color: var(--terminal-green);
  font-weight: 700;
}
.boot-line .fail-tag {
  color: var(--accent-red);
  font-weight: 700;
}
.boot-line.boot-prompt {
  color: var(--terminal-amber);
}
.boot-cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--terminal-green);
  vertical-align: text-bottom;
  animation: blink-cursor 1s step-end infinite;
}

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

/* ============================================
   NAVIGATION — Command Bar
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--space-xl);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  border-bottom-color: var(--border-glow);
}

.navbar .nav-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
}
.nav-brand:hover { color: var(--text-primary); text-shadow: none; }

.nav-prompt { color: var(--terminal-green); font-weight: 700; }
.nav-at { color: var(--text-muted); }
.nav-host { color: var(--accent-cyan); font-weight: 700; }
.nav-colon { color: var(--text-muted); }
.nav-path { color: var(--terminal-amber); }
.nav-dollar { color: var(--text-muted); margin-right: 4px; }

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-xs);
  align-items: center;
}
.nav-links li a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}
.nav-links li a:hover {
  color: var(--terminal-green);
  background: var(--terminal-green-glow);
  text-shadow: 0 0 8px var(--terminal-green-glow);
}
.nav-links li a.active {
  color: var(--terminal-green);
  background: var(--terminal-green-glow);
}
.nav-links li a.active::before {
  content: '●';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.5rem;
  color: var(--terminal-green);
  text-shadow: 0 0 6px var(--terminal-green);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--terminal-green);
  transition: all var(--transition-base);
  border-radius: 2px;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
}

.hero-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-image-wrapper {
  position: relative;
}
.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--terminal-green), var(--accent-cyan), var(--terminal-amber));
  opacity: 0.6;
  animation: rotate-glow 6s linear infinite;
  z-index: 0;
}
@keyframes rotate-glow {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.hero-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border: 3px solid var(--bg-deep);
  filter: saturate(0.8) brightness(0.95);
  transition: filter var(--transition-base);
}
.hero-image:hover {
  filter: saturate(1) brightness(1);
}

.hero-terminal-line {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.prompt-symbol {
  font-family: var(--font-mono);
  color: var(--terminal-green);
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.hero-name {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--terminal-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--terminal-amber);
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: center;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--terminal-green);
  color: var(--terminal-green);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover {
  background: var(--terminal-green-glow);
  box-shadow: 0 0 16px var(--terminal-green-glow);
  color: var(--terminal-green);
  text-shadow: 0 0 8px var(--terminal-green-glow);
}
.btn-primary {
  background: var(--terminal-green);
  color: var(--bg-deep);
  font-weight: 600;
}
.btn-primary:hover {
  background: #33ff66;
  color: var(--bg-deep);
  box-shadow: 0 0 24px var(--terminal-green-glow);
  text-shadow: none;
}
.btn-amber {
  border-color: var(--terminal-amber);
  color: var(--terminal-amber);
}
.btn-amber:hover {
  background: var(--terminal-amber-glow);
  box-shadow: 0 0 16px var(--terminal-amber-glow);
  color: var(--terminal-amber);
}

/* ============================================
   SOCIAL LINKS
   ============================================ */
.social-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}
.social-links a:hover {
  color: var(--terminal-green);
  border-color: var(--terminal-green);
  background: var(--terminal-green-glow);
  box-shadow: 0 0 12px var(--terminal-green-glow);
  text-shadow: none;
}

/* ============================================
   NEOFETCH SECTION
   ============================================ */
.section-title {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.section-title .prompt {
  color: var(--terminal-green);
  font-weight: 700;
}

.neofetch-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 2;
  position: relative;
  overflow: hidden;
}
.neofetch-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--terminal-green), var(--accent-cyan), var(--terminal-amber));
}

.neofetch-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xl) var(--space-2xl);
  align-items: start;
}

.neofetch-ascii {
  color: var(--terminal-green);
  font-size: 0.75rem;
  line-height: 1.25;
  white-space: pre;
  opacity: 0.7;
  align-self: center;
}

.neofetch-info .neofetch-header {
  color: var(--terminal-green);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}
.neofetch-info .neofetch-separator {
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}
.neofetch-info .info-line {
  display: flex;
  gap: var(--space-sm);
}
.neofetch-info .info-label {
  color: var(--terminal-green);
  font-weight: 500;
  min-width: 120px;
  flex-shrink: 0;
}
.neofetch-info .info-value {
  color: var(--text-primary);
}

.neofetch-colors {
  display: flex;
  gap: 4px;
  margin-top: var(--space-md);
}
.neofetch-colors span {
  width: 24px;
  height: 12px;
  border-radius: 2px;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.skill-category {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.skill-category:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.skill-category h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--terminal-amber);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.skill-category h3 i {
  font-size: 0.8rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: default;
}
.skill-tag:hover {
  color: var(--terminal-green);
  border-color: var(--terminal-green);
  background: var(--terminal-green-glow);
  box-shadow: 0 0 8px var(--terminal-green-glow);
}

/* ============================================
   SCHEMATIC PROJECT CARDS
   ============================================ */
.projects-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-base);
}
.project-card::before,
.project-card::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-style: solid;
  border-color: var(--text-dim);
  z-index: 2;
  transition: border-color var(--transition-base);
}
/* Corner markers — PCB alignment marks */
.project-card::before {
  top: 8px; left: 8px;
  border-width: 2px 0 0 2px;
}
.project-card::after {
  bottom: 8px; right: 8px;
  border-width: 0 2px 2px 0;
}
.project-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}
.project-card:hover::before,
.project-card:hover::after {
  border-color: var(--terminal-green);
}

.project-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
  filter: saturate(0.7) brightness(0.85);
  transition: filter var(--transition-base);
}
.project-card:hover .project-card-image {
  filter: saturate(1) brightness(1);
}

.project-card-body {
  padding: var(--space-lg);
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--terminal-green);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.project-status .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--terminal-green);
  box-shadow: 0 0 6px var(--terminal-green);
  animation: pulse-dot 2s ease-in-out infinite;
}
.project-status.in-progress .status-dot {
  background: var(--terminal-amber);
  box-shadow: 0 0 6px var(--terminal-amber);
}
.project-status.in-progress {
  color: var(--terminal-amber);
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.project-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.project-card-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.project-tech-tags span {
  padding: 0.2rem 0.55rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
}

.project-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal-green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}
.project-link::after {
  content: '→';
  transition: transform var(--transition-fast);
}
.project-link:hover::after {
  transform: translateX(4px);
}

/* ============================================
   PUBLICATION ITEMS
   ============================================ */
.scholar-stats-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-2xl);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: var(--space-2xl);
  position: relative;
  overflow: hidden;
}
.scholar-stats-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--terminal-green), var(--accent-cyan));
}

.stats-header {
  color: var(--terminal-green);
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.stats-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}
.stats-label {
  color: var(--text-secondary);
  min-width: 130px;
}
.stats-value {
  color: var(--text-primary);
  font-weight: 700;
}
.stats-bar {
  display: flex;
  gap: 2px;
}
.stats-bar span {
  width: 12px;
  height: 14px;
  border-radius: 2px;
}
.stats-bar span.filled {
  background: var(--terminal-green);
  box-shadow: 0 0 4px var(--terminal-green-glow);
}
.stats-bar span.empty {
  background: var(--bg-elevated);
}

.publication-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.publication-item:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.pub-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--terminal-amber);
  margin-bottom: var(--space-sm);
}

.publication-item h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.pub-authors {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.pub-venue {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
  margin-bottom: var(--space-md);
}

.pub-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.pub-citations {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal-amber);
  display: flex;
  align-items: center;
  gap: 6px;
}

.pub-links {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ============================================
   BLOG CARDS — README Style
   ============================================ */
.blog-grid {
  display: grid;
  gap: var(--space-lg);
}

.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.blog-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.blog-card-file {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal-amber);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}
.blog-card-file i {
  color: var(--text-muted);
}

.blog-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.blog-card-meta {
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.blog-card-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-md);
}
.blog-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
}

/* ============================================
   CONTACT — SSH TERMINAL FORM
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-2xl);
  align-items: start;
}

.contact-terminal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-color);
}
.terminal-bar-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-bar-dot.red { background: #ef4444; }
.terminal-bar-dot.yellow { background: #eab308; }
.terminal-bar-dot.green { background: #22c55e; }
.terminal-bar-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.terminal-body {
  padding: var(--space-xl);
}

.terminal-body .ssh-header {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--terminal-green);
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal-green);
  margin-bottom: var(--space-xs);
  display: block;
}
.form-group label::before {
  content: '> ';
  color: var(--text-dim);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.7rem var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--terminal-green);
  box-shadow: 0 0 12px var(--terminal-green-glow);
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-actions {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
  display: none;
}
.form-status.success {
  display: block;
  color: var(--terminal-green);
  background: var(--terminal-green-glow);
  border: 1px solid var(--terminal-green);
}
.form-status.error {
  display: block;
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--accent-red);
}

.contact-info {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}
.contact-info h3 {
  font-size: 1rem;
  color: var(--terminal-amber);
  margin-bottom: var(--space-lg);
}
.contact-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
}
.contact-info-item i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--terminal-green);
  font-size: 0.9rem;
  flex-shrink: 0;
}
.contact-info-item span {
  color: var(--text-secondary);
}

/* ============================================
   TIMELINE — Git Log Style
   ============================================ */
.timeline {
  position: relative;
  padding-left: var(--space-2xl);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding-left: var(--space-lg);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -22px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--terminal-green);
  border: 2px solid var(--bg-deep);
  box-shadow: 0 0 6px var(--terminal-green-glow);
}

.timeline-hash {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--terminal-amber);
  margin-bottom: 2px;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.timeline-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 600;
}
.timeline-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ============================================
   PAGE HEADERS
   ============================================ */
.page-header {
  padding: calc(64px + var(--space-3xl)) 0 var(--space-2xl);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-2xl);
}
.page-header h1 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.page-header h1 .prompt {
  color: var(--terminal-green);
}
.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ============================================
   ARTICLE STYLES
   ============================================ */
.article-content {
  max-width: 760px;
  margin: 0 auto;
}
.article-content h2 {
  font-size: 1.3rem;
  color: var(--terminal-green);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}
.article-content h3 {
  font-size: 1.1rem;
  color: var(--terminal-amber);
  margin: var(--space-xl) 0 var(--space-md);
}
.article-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
  line-height: 1.8;
}
.article-content ul, .article-content ol {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}
.article-content li {
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-elevated);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
}
.article-content pre {
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  overflow-x: auto;
}
.article-content pre code {
  background: none;
  padding: 0;
  color: var(--terminal-green);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

/* ============================================
   PROJECT DETAIL PAGE
   ============================================ */
.project-detail {
  padding: calc(64px + var(--space-3xl)) 0 var(--space-3xl);
}

.project-detail-header {
  margin-bottom: var(--space-2xl);
}
.project-detail-header h1 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.project-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  align-items: start;
}

.project-overview-image {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.project-meta-list {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.project-meta-list dt {
  color: var(--terminal-green);
  font-weight: 500;
  margin-bottom: 2px;
}
.project-meta-list dd {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  margin-left: 0;
}

.project-section {
  margin-bottom: var(--space-2xl);
}
.project-section h2 {
  font-size: 1.3rem;
  color: var(--terminal-green);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}
.project-section p,
.project-section li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
.project-section ul {
  padding-left: var(--space-xl);
  margin-top: var(--space-sm);
}
.project-section li {
  margin-bottom: var(--space-sm);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--terminal-green);
  margin-bottom: var(--space-md);
}
.footer-section p {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-lg);
  text-align: center;
}
.footer-bottom p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

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

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid children */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-grid {
    gap: var(--space-2xl);
  }
  .hero-name {
    font-size: 2.2rem;
  }
  .neofetch-grid {
    grid-template-columns: 1fr;
  }
  .neofetch-ascii {
    display: none;
  }
  .project-overview {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 80px var(--space-xl) var(--space-xl);
    gap: 0;
    border-left: 1px solid var(--border-color);
    transition: right var(--transition-slow);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
    z-index: 1002;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .nav-links.active {
    right: 0;
  }
  .nav-links li a {
    display: block;
    padding: var(--space-md);
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
  }
  .nav-links li a.active::before {
    left: 6px;
  }

  .hero {
    padding-top: calc(64px + var(--space-2xl));
    min-height: auto;
    padding-bottom: var(--space-3xl);
  }
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
  .hero-terminal-line {
    justify-content: center;
  }
  .hero-name {
    font-size: 2rem;
  }
  .hero-actions {
    justify-content: center;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .page-header {
    padding: calc(64px + var(--space-2xl)) 0 var(--space-lg);
  }
  .page-header h1 {
    font-size: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .projects-grid-layout {
    grid-template-columns: 1fr;
  }

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

  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 1.6rem;
  }
  .hero-title {
    font-size: 1rem;
  }
  .hero-image {
    width: 160px;
    height: 160px;
  }
  .nav-brand {
    font-size: 0.78rem;
  }
  .section-title {
    font-size: 1.2rem;
  }
  .pub-links {
    flex-direction: column;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .navbar, .boot-overlay, .hamburger { display: none !important; }
  body::before { display: none; }
  body { background: #fff; color: #000; }
  .section, footer { break-inside: avoid; }
  a { color: #000; text-decoration: underline; }
}