/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #222222;
  --bg-card: #1e1e1e;
  --bg-overlay: rgba(26, 26, 26, 0.95);
  
  /* Neon Colors */
  --neon-cyan: #00ffff;
  --neon-blue: #00bfff;
  --neon-purple: #bf00ff;
  --neon-magenta: #ff00ff;
  --neon-green: #00ff00;
  --neon-pink: #ff007f;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --text-accent: var(--neon-cyan);
  
  /* Borders & Outlines */
  --border-primary: #333333;
  --border-accent: var(--neon-cyan);
  --border-glow: 0 0 10px var(--neon-cyan);
  
  /* Fonts */
  --font-heading: 'Orbitron', monospace;
  --font-body: 'Roboto Mono', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.3);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
  --shadow-text: 0 0 10px currentColor;
}

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

html {
  scroll-behavior: smooth;
}

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

.cyberpunk-body {
  position: relative;
  min-height: 100vh;
}

/* ===== GRID OVERLAY ===== */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
}

/* ===== MAIN CONTAINER ===== */
.main-container {
  position: relative;
  z-index: 1;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--neon-magenta);
  text-shadow: var(--shadow-text);
}

/* ===== NEON TEXT EFFECT ===== */
.neon-text {
  color: var(--neon-cyan);
  text-shadow: 
    0 0 5px var(--neon-cyan),
    0 0 10px var(--neon-cyan),
    0 0 15px var(--neon-cyan);
  animation: neonFlicker 2s infinite alternate;
}

@keyframes neonFlicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-primary);
  z-index: 1000;
  transition: var(--transition-normal);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.25rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-svg {
  width: 100%;
  height: 100%;
  fill: var(--neon-cyan);
  filter: drop-shadow(0 0 5px var(--neon-cyan));
}

.site-title {
  background: linear-gradient(45deg, var(--neon-cyan), var(--neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-normal);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  transition: var(--transition-normal);
}

.nav-link:hover::before,
.nav-link.active::before {
  left: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 5px var(--neon-cyan);
}

.nav-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  box-shadow: 0 0 5px var(--neon-cyan);
  transition: var(--transition-normal);
}

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

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.search-toggle,
.theme-toggle,
.mobile-menu-toggle {
  background: none;
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
}

.search-toggle:hover,
.theme-toggle:hover,
.mobile-menu-toggle:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: var(--border-glow);
}

.search-icon,
.theme-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 3px;
}

.hamburger-line {
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: var(--transition-normal);
}

/* ===== SEARCH OVERLAY ===== */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-container {
  width: 90%;
  max-width: 600px;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 8px;
  box-shadow: var(--shadow-glow);
  overflow: hidden;
}

.search-input {
  width: 100%;
  padding: var(--spacing-lg);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1.125rem;
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
  border-top: 1px solid var(--border-primary);
}

/* ===== CONTENT AREA ===== */
.content-area {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
  padding: var(--spacing-xl) 0;
}

/* ===== HOMEPAGE ===== */
.homepage {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Hero Section */
.hero-section {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.title-line {
  display: block;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  justify-content: center;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  padding: var(--spacing-md);
  text-align: center;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: var(--transition-slow);
}

.stat-card:hover::before {
  left: 100%;
}

.stat-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--border-glow);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan);
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* CTA Buttons */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 4px;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.cta-button.primary {
  background: linear-gradient(45deg, var(--neon-cyan), var(--neon-blue));
  color: var(--bg-primary);
  border: none;
}

.cta-button.secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-normal);
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 255, 255, 0.3);
}

.btn-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Neural Network Visual */
.hero-visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.neural-network {
  position: relative;
  width: 300px;
  height: 300px;
}

.network-node {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--neon-cyan);
  animation: pulse 2s infinite;
}

.network-node[data-node="1"] { top: 20%; left: 20%; animation-delay: 0s; }
.network-node[data-node="2"] { top: 20%; right: 20%; animation-delay: 0.4s; }
.network-node[data-node="3"] { bottom: 20%; left: 20%; animation-delay: 0.8s; }
.network-node[data-node="4"] { bottom: 20%; right: 20%; animation-delay: 1.2s; }
.network-node[data-node="5"] { top: 50%; left: 50%; transform: translate(-50%, -50%); animation-delay: 1.6s; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
}

/* ===== SECTIONS ===== */
.recent-section,
.categories-section,
.status-section {
  margin-bottom: var(--spacing-2xl);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan);
}

.section-link {
  color: var(--text-accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-normal);
}

.section-link:hover {
  color: var(--neon-magenta);
  text-shadow: 0 0 5px var(--neon-magenta);
}

/* ===== GRIDS ===== */
.activity-grid,
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

/* ===== CARDS ===== */
.activity-card,
.category-card,
.status-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  padding: var(--spacing-lg);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.activity-card::before,
.category-card::before,
.status-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.05), transparent);
  transition: var(--transition-slow);
}

.activity-card:hover::before,
.category-card:hover::before,
.status-card:hover::before {
  left: 100%;
}

.activity-card:hover,
.category-card:hover,
.status-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--border-glow);
  transform: translateY(-2px);
}

/* Card Headers */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-date {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card-category {
  font-size: 0.75rem;
  color: var(--neon-green);
  background: rgba(0, 255, 0, 0.1);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Status Indicators */
.mission-status,
.project-status {
  font-size: 0.75rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.status-planning { background: rgba(255, 191, 0, 0.1); color: #ffbf00; }
.status-in-progress { background: rgba(0, 191, 255, 0.1); color: var(--neon-blue); }
.status-completed { background: rgba(0, 255, 0, 0.1); color: var(--neon-green); }
.status-on-hold { background: rgba(255, 0, 127, 0.1); color: var(--neon-pink); }

/* Card Content */
.card-content {
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.card-title a {
  color: var(--text-primary);
  transition: var(--transition-normal);
}

.card-title a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 5px var(--neon-cyan);
}

.card-summary {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Card Footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tag {
  font-size: 0.75rem;
  color: var(--neon-purple);
  background: rgba(191, 0, 255, 0.1);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: var(--transition-normal);
}

.tag:hover {
  background: rgba(191, 0, 255, 0.2);
  color: var(--neon-magenta);
}

.read-time {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ===== TERMINAL INTRO ===== */
.terminal-intro {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 1s ease;
}

.terminal-intro.hidden {
  opacity: 0;
  pointer-events: none;
}

.terminal-content {
  font-family: var(--font-body);
  color: var(--neon-green);
  font-size: 1.125rem;
}

.terminal-line {
  margin-bottom: var(--spacing-sm);
}

.prompt {
  color: var(--neon-cyan);
}

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

.cursor {
  animation: blink 1s infinite;
}

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

.boot-messages {
  margin-top: var(--spacing-md);
}

.boot-message {
  margin-bottom: var(--spacing-xs);
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .activity-grid,
  .categories-grid {
    grid-template-columns: 1fr;
  }
  
  .header-container {
    padding: var(--spacing-md);
  }
  
  .homepage {
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .stat-card {
    padding: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
}